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The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review)

  • Authors:
    • Yuantong Zhao
    • Chenchen Yu
    • Jingyu Zhang
    • Qinghua Yao
    • Xiao Zhu
    • Xiaorong Zhou
  • View Affiliations / Copyright

    Affiliations: Department of Immunology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, P.R. China, Department of Dermatology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, P.R. China, School of Ocean and Tropical Medicine, The Second Affiliated Hospital of Guangdong Medical University, Guangdong Medical University, Zhanjiang, Guangdong 524003, P.R. China, Department of Immunology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, P.R. China
    Copyright: © Zhao et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 210
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    Published online on: September 29, 2025
       https://doi.org/10.3892/ijmm.2025.5651
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Abstract

 Emerging evidence indicates a significant association between the composition and functionality of the gut microbiome and various skin disorders, including psoriasis, atopic dermatitis, acne and several dermatological conditions. The gut‑skin axis theory describes a complex bidirectional communication network between the gut and the skin, providing mechanistic insights into the pathogenesis of certain cutaneous diseases. Specifically, the gut microbiome influences skin health through the regulation of systemic immunity, inflammatory responses and metabolic pathways. Advances in high‑throughput sequencing and bioinformatics technologies have substantially enhanced the understanding of the role of the gut microbiome in skin pathology. Clinical and preclinical studies have demonstrated that restoring gut microbial homeostasis via interventions such as faecal microbiota transplantation, probiotics and prebiotics can ameliorate symptoms of skin diseases. Furthermore, personalized microbiome‑based therapies, next‑generation probiotics and dietary modifications hold promise for refining gut‑skin interactions and advancing precision medicine in dermatology. Therapeutic strategies targeting the gut‑skin axis offer novel avenues for innovative dermatological treatments, with future breakthroughs potentially involving microbial community engineering, postbiotics and artificial intelligence in microbiome‑related diagnostics. This narrative review summarizes recent advances in gut‑skin axis research, explores its potential in the prevention and management of selected dermatoses and discusses future trends and scientific developments in the field.

Introduction

The skin, as the largest organ of the human body, provides a protective barrier against mechanical, microbial, chemical and allergenic insults (1). The gastrointestinal tract, a crucial mucosal immune organ, maintains immune homeostasis through dynamic interactions between the microbiome and the intestinal immune system (2). The intestinal mucosal immune function is mediated by the mucus layer, epithelial barrier and resident immune cells, all of which engage with the gut microbiota (3). The collective genome of gut microbes is termed the 'gut microbiome,' which is intimately linked to long-term health (4). As interfaces with the external environment, both the gut and skin host diverse microbial communities and are richly innervated and vascularized. As early as 1930, John H. Stokes and Donald M. Pillsbury proposed an intrinsic relationship between gut microbiota and skin inflammation, conceptualizing the 'gut-skin axis' (5). Recent advances in microbiology and immunology have begun to clarify the mechanisms through which gut microbiota influences skin health. Lee and Sung (6) identified immune pathways by which alterations in gut and skin microbiota contribute to dermatopathology, while Szanto et al (7) suggested that gut microbiota modulation may hold therapeutic potential for specific skin disorders. These findings not only validate the gut-skin axis theory but also open new avenues for clinical dermatology. In the context of increasing antibiotic resistance, therapeutic strategies are shifting toward alternatives such as probiotics, prebiotics and dietary interventions, which can restore microbial balance and modulate immune responses to improve skin health (8,9). This review examines novel strategies for treating skin diseases from the perspective of the gut-skin axis and explores future translational research directions.

Gut microbiome and skin health

Basic concepts and functions of the gut microbiota

The gut microbiota comprises diverse and dynamic microbial communities residing in the human gastrointestinal tract (10) (Fig. 1A). Anatomically and functionally, the gut is divided into the small and large intestines, each with distinct physiological conditions and microbial populations (11). Numerous factors influence the gut microbiota (Fig. 1B), with diet being a primary determinant of its structure and function (12). The gut microbiota evolves from infancy and changes in composition and diversity over time within an individual (13). There is considerable interindividual variation in gut microbial composition. Through host-microbe coevolution, the gut microbiome plays a critical role in regulating host physiology, including metabolism, immune development and behavioral responses (14,15).

Basic components of the gut-skin axis
(gut microbiota, skin microbiota) and the possible impact of gut
microbiota on human health. (A) Members of the gut microbiota
(mainly bacteria). Gut microbial communities maintain homeostasis
through competitive exclusion, metabolic cross-feeding, and niche
competition. (B) Factors that may affect gut microbiota
composition, including diet, antibiotics, host genetics, age and
environmental exposures. (C) Schematic representation of the skin
microbiome. The skin surface exhibits an acidic pH, high salinity,
low moisture and aerobic conditions, while the follicle-sebaceous
unit is relatively anaerobic and lipid-rich. Commensal microbiota
support skin barrier integrity through colonization resistance and
immune modulation. (D) The gut-organ axis system, where the gut
microbiota communicates bidirectionally with other organs (e.g.,
brain, kidney, liver, skin) via metabolites and microbial
components through endocrine, neural and immune pathways.

Figure 1

Basic components of the gut-skin axis (gut microbiota, skin microbiota) and the possible impact of gut microbiota on human health. (A) Members of the gut microbiota (mainly bacteria). Gut microbial communities maintain homeostasis through competitive exclusion, metabolic cross-feeding, and niche competition. (B) Factors that may affect gut microbiota composition, including diet, antibiotics, host genetics, age and environmental exposures. (C) Schematic representation of the skin microbiome. The skin surface exhibits an acidic pH, high salinity, low moisture and aerobic conditions, while the follicle-sebaceous unit is relatively anaerobic and lipid-rich. Commensal microbiota support skin barrier integrity through colonization resistance and immune modulation. (D) The gut-organ axis system, where the gut microbiota communicates bidirectionally with other organs (e.g., brain, kidney, liver, skin) via metabolites and microbial components through endocrine, neural and immune pathways.

Skin microbial composition and its function

As the body's outermost barrier, the skin is continuously exposed to environmental factors and serves as the first line of immune defense (16). The skin microbiota consists of microbial communities adapted to the cutaneous environment through long-term colonization, persisting in the chemical milieu of the stratum corneum, sweat and sebaceous secretions (17). Environmental factors such as ultraviolet radiation, temperature, humidity, sebum levels, oxygen availability and pH create distinct ecological niches across skin regions, leading to spatial variation in microbial composition (18). Based on physiological characteristics, Mahmud et al (19) classified skin into sebaceous (e.g., between eyebrows), moist (e.g., forearm flexure) and dry (e.g., palmar forearm) types. Lipophilic bacteria dominate sebum-rich areas, whereas dry regions may support a more diverse microbiota (Fig. 1C).

Concept of intestinal microecological dysbiosis and its association with skin diseases

According to Petersen and Round (20), dysbiosis refers to alterations in complex biological communities. In the context of the gut microbiome, dysbiosis manifests in three primary forms: Loss of beneficial microbes, overgrowth of pathogenic microorganisms and reduced overall microbial diversity. These forms may occur independently or concurrently (20). In microbiome research, α-diversity measures species richness within a sample, while β-diversity assesses structural differences between samples, revealing characteristic dysbiosis patterns in skin diseases (21). Key factors contributing to gut microbiota imbalance include perinatal factors (e.g., mode of delivery), lifestyle (diet, stress, smoking) and medical interventions (e.g., antibiotics, chemotherapy) (Fig. 1B). Gut dysbiosis has been implicated in numerous diseases, including common skin disorders such as atopic dermatitis (AD), psoriasis, acne and alopecia areata (21). Research on rare skin diseases like lichen planus (LP) and autoimmune bullous dermatoses (AIBD) may also find breakthroughs through the gut microbiome (22).

The 'gut-skin axis' theory

Theoretical basis and background

The 'gut-skin axis' theory is part of the broader 'gut-organ axis' framework, emphasizing bidirectional communication between the gut and other organs via neurological, endocrine and immune pathways (23). This theory integrates multiple organs, the gut and the immune system with the gut microbiota (24). The gut and skin share structural and functional similarities, including embryonic origin, symbiotic microbial communities, innervation patterns and immune functions (19). As internal and external surfaces in contact with the environment, they utilize similar signaling and innervation pathways. T-cell-mediated immune responses often manifest in both intestinal and cutaneous tissues (25).

The gut microbial community is central to maintaining gut-skin homeostasis and underpins the gut-skin axis theory (26). The gut microbiota includes bacteria, fungi, parasites, protozoa and viruses, with bacteria predominating (27). Over 90% of gut bacteria belong to the Bacteroidetes and Firmicutes phyla (28). The Bacteroidota-to-Firmicutes ratio is commonly used to assess gut microbiota characteristics and diversity (29). Gut bacteria can be categorized as beneficial (e.g., Bifidobacteria, Lactobacillus) or opportunistic pathogens (e.g., Staphylococci, Clostridia), which may cause infection under certain conditions (30).

Ways in which gut microbes affect skin health

Alterations in gut microbiome composition, metabolism and immunity can impact skin health. Manos (31) identified interspecies communication within microbial communities as a key factor in maintaining cutaneous homeostasis and responding to environmental stressors, with dysregulation contributing to skin disease. External factors such as genetics, diet, antimicrobials, and lifestyle influence microbial diversity (32) (Fig. 2A).

Implications of the gut
microbial-skin axis, i.e., the bi-directional interaction between
the gut and skin, and certain applications. (A) Next-generation
sequencing enables taxonomic profiling, while multi-omics
integration (metagenomics, metabolomics) facilitates functional
annotation of microbial pathways. (B) Gut dysbiosis alters systemic
levels of microbial metabolites (e.g., tryptophan derivatives),
triggering skin inflammation. Conversely, cutaneous inflamma- tion
impairs intestinal barrier function, shifting the gut microbial
composition. (C) The process of FMT, including donor screening,
fecal slurry preparation and recipient delivery. Application in
dermatology targets microbial reconstitution in conditions like AD.
(D) Microbiota-derived metabolites may influence histological
characteristics of early melanoma and clinical manifestations of
advanced melanoma through direct or indirect immunomodulatory
effects. AD, atopic dermatitis; FMT, fecal microbiota
transplantation; TMAO, trimethylamine N-oxide.

Figure 2

Implications of the gut microbial-skin axis, i.e., the bi-directional interaction between the gut and skin, and certain applications. (A) Next-generation sequencing enables taxonomic profiling, while multi-omics integration (metagenomics, metabolomics) facilitates functional annotation of microbial pathways. (B) Gut dysbiosis alters systemic levels of microbial metabolites (e.g., tryptophan derivatives), triggering skin inflammation. Conversely, cutaneous inflamma- tion impairs intestinal barrier function, shifting the gut microbial composition. (C) The process of FMT, including donor screening, fecal slurry preparation and recipient delivery. Application in dermatology targets microbial reconstitution in conditions like AD. (D) Microbiota-derived metabolites may influence histological characteristics of early melanoma and clinical manifestations of advanced melanoma through direct or indirect immunomodulatory effects. AD, atopic dermatitis; FMT, fecal microbiota transplantation; TMAO, trimethylamine N-oxide.

Gut dysbiosis is associated with multiple disease states (33) (Fig. 1D). Olejniczak-Staruch et al (34) reported significant gut dysbiosis in patients with psoriasis, characterized by increased abundance of Campylobacter, Helicobacter, Escherichia coli, Alcaligenes and Salmonella. Similarly, infants with AD show reduced Bifidobacteria and increased Clostridium difficile and E. coli (35).

Gut microbiota-derived metabolites mediate skin interactions through short-chain fatty acids (SCFAs), tryptophan metabolites and amine derivatives (e.g., trimethylamine N-oxide), which exert systemic effects via specific receptors (36). SCFAs play important roles in immune regulation; Trompette et al (37) demonstrated that gut-derived butyrate enhances skin barrier function by modifying mitochondrial metabolism in keratinocytes. Fang et al (38) reported that Bifidobacterium longum produces indole derivatives that alleviate AD via the tryptophan pathway. Tryptophan metabolites (e.g., indoleacetic acid) are critical for maintaining intestinal and systemic immune homeostasis (39) (Fig. 2B).

The gut microbiota modulates both systemic and skin-specific immunity (16). Through arginine-induced barrier changes, it influences skin differentiation, immune activation and homeostatic balance (40) (Fig. 2B). Disrupted gut-immune crosstalk compromises skin barrier integrity, increasing susceptibility to inflammatory skin conditions. Marrs et al (41) associated a greater Clostridium abundance in infant guts with AD, suggesting that gut microbiota evolution during infancy affects immune tolerance development. Intestinal commensal bacteria prime innate immunity; dysbiosis may alter local immune responses via Toll-like receptor pathways or inflammasomes, promoting systemic inflammation (42).

Evidence of association between skin health and gut microbiome

Bidirectional interaction between the gut microbiome and skin health is central to the gut-skin axis theory. While most evidence highlights gut microbes influencing skin health, Dokoshi et al (43) demonstrated that skin injury directly remodels the gut microbiome (Fig. 2B), providing experimental support for bidirectional signaling and indicating that skin damage may impair gut immune homeostasis. Long et al (44), in a two-sample Mendelian randomization study, established a causal relationship between gut microbiota and four common inflammatory skin diseases: Eczema, acne, psoriasis and rosacea.

Gut microbiology in the treatment of skin diseases

Advances in clinical research: Gut microbial regulation and skin diseases

Understanding gut microbiota-skin interactions offers novel mechanistic insights for managing dermatological conditions. Clinical evidence reveals frequent comorbidity of skin and intestinal disorders, such as enteropathic acrodermatitis (zinc malabsorption causing dermatitis, alopecia and diarrhea) (45), and celiac disease (associated with eczema, psoriasis and urticaria) (46).

Restoring gut microbiota balance enhances intestinal barrier integrity and regulates immune responses (47). This involves upregulating immunomodulatory cytokines (e.g., IL-10) (48) and suppressing pro-inflammatory mediators (e.g., TNF-α) (49). Clinical interventions include probiotics, prebiotics, synbiotics and fecal microbiota transplantation (FMT) (50).

FMT in the treatment of skin diseases

FMT involves transferring processed stool from healthy donors to patients to rebuild gut microbiota. Initially used for digestive diseases (51-53), FMT's efficacy depends on donor and recipient factors (immune status, genetic diversity, gut microbial composition) and treatment protocols (stool amount, number of infusions, delivery route and adjuvant therapy) (54) (Fig. 2C).

While most FMT research focuses on gastrointestinal disorders, recent trials suggest it may modulate systemic immune responses, including in skin cancers like melanoma. Kim et al (55) showed that FMT improved AD symptoms in mice by restoring gut microbiota. FMT enhances immunotherapy efficacy in cancer patients by modulating gut microbiota (56). Melanoma, the most common and prognostically worst skin cancer, is increasing globally (57). Baruch et al (58) observed that FMT induced favorable changes in immune cell infiltration and gene expression in intestinal and tumor microenvironments. Liu et al (59) demonstrated that FMT is effective for moderate to severe AD in adults, altering gut microbiota composition and function. However, FMT carries risks; Eshel et al (60) found that while FMT capsules rarely transmit bloodstream pathogens directly, they may indirectly promote bacterial translocation via gut inflammation, potentially compromising intestinal barrier integrity and increasing infection risk. Further in-depth studies are required to ascertain the efficacy and safety of FMT in treating other skin diseases.

Advances in the use of probiotics and prebiotics to modulate gut microbial composition in the treatment of skin diseases

Prebiotics are indigestible food components that selectively stimulate beneficial bacteria (e.g., Bifidobacterium, Lactobacillus) while inhibiting pathogenic overgrowth, thereby improving intestinal microecology (61). Probiotics are live microorganisms that, when administered in adequate amounts, confer health benefits through intestinal colonization (62). These interventions show promise beyond gastrointestinal and cardiovascular diseases (63,64) with emerging applications in dermatology.

Rahmayani et al (65) showed that oral probiotics increased serum IL-10 levels in patients with acne vulgaris (AV). IL-10 cytokines curtail excessive inflammation, enhance innate immunity and promote tissue repair, offering therapeutic potential for inflammatory diseases (66). Probiotic supplementation improves gut microbiota balance, inflammatory markers and quality of life in patients with psoriasis (67).

In oncology, gut microbiome modulation may enhance immunotherapy efficacy. Specific probiotics influence T-cell-mediated therapies (e.g., anti-programmed cell death 1, chimeric antigen receptor-T) (68), though strain-specific effects require further validation. Bender et al (69) demonstrated that Lactobacillus reuteri translocates to melanoma sites in mice, secreting indole-3-aldehyde to activate CD8+ T-cell receptors and potentiate immunotherapy. Such mechanisms hold potential for future immunomodulatory strategies pending resolution of delivery challenges and dose optimization.

Study of the 'gut microbe-skin axis' in specific skin diseases

Psoriasis

Psoriasis is an immune-mediated skin disease characterized by abnormal keratinocyte proliferation and differentiation, posing significant physical and psychological burdens (70). Previous studies suggested gut microbiota dysbiosis in patients with psoriasis, but the relationship remained vague (71). Zang et al (72) used bidirectional Mendelian randomization to identify Pasteurellaceae, Brucella and Methanobrevibacter smithii as potential pathogenic contributors, suggesting microbial targets for therapy (Table I). Zhao et al (73) demonstrated through metabolomics that gut microbiota transplantation from severely affected mice exacerbated skin inflammation in mild cases, while a phosphodiesterase-4 inhibitor alleviated symptoms and restored the gut microbiota, providing a theoretical basis for gut microbiota-skin axis-based psoriasis treatment (Table I).

Table I

Current status of intestinal microbiota modulation therapy in dermatological treatment.

Table I

Current status of intestinal microbiota modulation therapy in dermatological treatment.

Study (authors, year)DiseaseAnalytical method/study typeResearch conclusions(Refs.)
Zang et al, 2023PsoriasisTwo-sample Mendelian randomization Pasteurellales, Pasteurellaceae, Blautia, Methanobrevibacter and E. fissicatena group are nominal risk factors for psoriasis(72)
Zhao et al, 2023PsoriasisMetabonomicsBifidobacterium CCFM16 and Lactobacillus plantarum CCFM8610 alleviate AD symptoms; probiotics mitigate antibiotic side effects and enhance acne therapy(73)
Fang et al, 2020ADMetabonomicsProbiotic supplements can reduce the side effects of systemic antibiotics (minocycline) and work in concert with them to treat inflammatory acne(82)
Eguren et al, 2024AVRandomized clinical trial Lacticaseibacillus rhamnosus (CECT 30031) and Arthrospira platensis (BEA_IDA_0074B) were effective and well- tolerated in acne vulgaris treatment(91)
Wang et al, 2020CSUCombined microbiome and metabolome analysisPatients with CSU showed increased Enterobacteriaceae and decreased Bacteroides, Faecobacterium, Bifidobacterium and Ruminococcaceae; serum metabolomics revealed altered docosahexaenoic acid, arachidonic acid, glutamic acid and succinic acid, suggesting disrupted unsaturated fatty acid and butyrate metabolism(102)
Luo et al, 2022CSUCombined microbiome and metabolome analysisGut microbiota changes (increased Firmicutes, decreased Bacteroides/Proteobacteria) and altered fatty acid metabolism may contribute to immune dysregulation in CSU pathogenesis(103)
Fu et al, 2024UrticariaMeta-analysisOral probiotic regimens have a significant therapeutic effect on urticaria, but the therapeutic effect of multiple probiotic combinations and the safety of probiotic therapy are not obvious(104)
Bi et al, 2021CURandomized clinical trial Yimingjia® (main component is Five Lactobacillus strains and one Bifidobacterium strain) is safe and effective in adjuvant treatment of chronic urticaria in children for 4 weeks(105)
Ni et al, 2020VitiligoCombined microbiome and metabolome analysisPatients with vitiligo show gut dysbiosis featuring Corynebacterium type 1, Ruminococcus type 2, Actinobacillus and Psychrophilic Bacillus, with distinct serum metabolite profiles (e.g., taurochenodeoxycholic acid, L-NG-monomethylarginine) vs. healthy controls(111)
Luan et al, 2023VitiligoMetagenome sequencing and bioinformatics analysisThe gut microbiota and genetic function of patients with vitiligo are different from those of healthy controls. The identified gut microbial markers may be useful for early diagnosis and therapeutic targets(112)
Mrázek et al, 2019MelanomaCombined microbiome and metabolome analysisMelanoma tissue and healthy skin, as well as MeLiM and control piglet fecal microbiota, showed significant diversity differences in 8-12-week-old piglets(118)
Spencer et al, 2021MelanomaMultiomics sequencingLow-fiber diets and specific probiotics suppress intratumoral IFN-γ T cells, impairing anti-tumor immunity in mice(123)
Routy et al, 2024MelanomaCombined microbiome and metabolome analysisFMT partially overcomes immune checkpoint inhibitor resistance in refractory melanoma, is safe as first-line therapy and improves response rates in advanced cases(124)
Kamal et al, 2025Oral lichen planusRandomized clinical trialThe combination of probiotic mixtures containing Lactobacilli with topical corticosteroids results in a significant reduction in the symptoms of oral lichen planus(140)

[i] AD, atopic dermatitis; AV, acne vulgaris; CSU, chronic spontaneous urticaria; CU, chronic urticaria; FMT, fecal microbiota transplantation.

AD

AD is a common chronic inflammatory skin disease characterized by persistent itching and eczematous rash (74). It increases the risk of comorbidities like food allergies, asthma, allergic rhinitis and mental health disorders (75). The pathogenesis involves hereditary immune dysregulation, skin barrier dysfunction and environmental factors (76). The gut microbiota modulates immune system development, implying a key role in AD (77).

First-line AD treatment includes topical corticosteroids and calcineurin inhibitors (e.g., pimecrolimus, tacrolimus). For moderate to severe cases, ultraviolet phototherapy is used adjunctively (78). Probiotic supplementation is increasingly used, particularly in children, to modulate gut microbiota and regulate immune responses (79,80). Meta-analyses indicate certain probiotics reduce Scoring Atopic Dermatitis indices in adults (81). Fang et al (82) showed that Bifidobacterium CCFM16 and Lactobacillus plantar CCFM8610 specifically improve AD by altering gut microbiota composition and function (Table I).

AV

AV is a chronic inflammatory skin disease affecting sebaceous units, characterized by comedones, papules, pustules, nodules and scars, typically on the face, upper trunk and extremities (83). The global prevalence is estimated at 8.96% in men and 9.81% in women (84). The pathogenesis involves multifactorial mechanisms, with pubertal sebum hypersecretion being a key factor. AV often persists into adulthood with distinct features (85). Androgens and testosterone regulate sebum production, explaining why males often experience more severe symptoms (86).

Gut dysbiosis may exacerbate AV through upregulated insulin-like growth factor 1 signaling, insulin resistance and systemic pro-inflammatory cytokines (87). First-line treatments include topical retinoids, azelaic acid and benzoyl peroxide (88). The role of gut microbiota modulation via probiotics in improving AV is underexplored. Jung et al (89) found that probiotic-antibiotic combination therapy synergistically reduced inflammation and antibiotic side effects. Fabbrocini et al (90) showed that Lactobacillus rhamnosus SP1 (LSP1) probiotic normalized skin insulin signaling gene expression. Eguren et al (91) conducted a 12-week trial with Lactobacillus rhamnosus and Arthrospira in patients with AV aged 12-30 years, finding the probiotic adjunct safe and effective (Table I).

Rosacea

Rosacea is a chronic recurrent inflammatory skin condition affecting the central face (forehead, nose, cheeks, chin) (92). It is classified into erythematotelangiectatic, papulopustular, phymatous and ocular subtypes (93).

Gastrointestinal disorders are common comorbidities (94) and rosacea is linked to inflammatory bowel disease (95,96). While mechanistic studies are limited, microbiota modulation shows therapeutic potential. Manzhalii et al (97) showed that oral Escherichia coli Nissle 1917 increased beneficial bacteria (Bifidobacterium, Lactobacillus) and improved mucin barrier function, resolving rosacea symptoms. Fortuna et al (98) reported a case of scalp rosacea treated with doxycycline and probiotics (Bifidobacterium breve BR03, Lactobacillus salivarius LS01), with significant improvement. These findings support further investigation into gut microbiota-targeted rosacea management.

Urticaria

According to 2021 guidelines, urticaria is classified as acute (lasting <6 weeks) or chronic urticaria (CU). CU is a common inflammatory skin disorder involving mast cell-mediated allergy and autoimmunity, characterized by recurrent wheals, angioedema and itching lasting ≥6 weeks (99). Pathophysiology involves immune dysregulation, inflammatory cascade imbalance and coagulation-fibrinolytic activation (100). CU subtypes include chronic spontaneous urticaria (CSU) and chronic inducible urticarial (101).

Research links the gut microbiota to urticaria. Wang et al (102) found reduced Bacteroidetes and Proteobacteria in patients with CSU, with butyric acid metabolism alterations (Table I). Luo et al (103) observed decreased Bacteroidetes, Ruminococcus, Megasphaera and anaerobic bacilli in CSU, with altered serum metabolites (e.g., unsaturated fatty acids, purines), suggesting immune dysregulation (Table I). Few studies exist on gut microbiome-modulating therapies for urticaria. Fu et al (104) reported that probiotics reduced symptom scores (Table I). Bi et al (105) showed that probiotic mixtures were safe and effective adjuncts for childhood CU (Table I). These preliminary findings require larger validation studies.

Vitiligo

Vitiligo is a depigmentation disorder affecting 0.5-2% globally, with a genetic component (106). It presents as white, scaleless patches (107). Pathophysiologically, vitiligo is an autoimmune condition where melanocytes are sensitive to oxidative stress, triggering inflammatory cytokine release and innate immune activation. CD8+ T cells destroy melanocytes, driven by IFN-γ. Oxidative stress may induce gut dysbiosis, promoting autoimmunity. IFN-γ blockade therapies temporarily reverse depigmentation but relapse occurs upon cessation (108). The chronic course of vitiligo affects patients' appearance and psychological well-being; Kussainova et al (109) reported a 35.8% anxiety prevalence, higher in women.

Current evidence on the gut-vitiligo link is limited. Emerging studies suggest gut microbiome involvement. Hadi et al (110) reported vitiligo-inflammatory bowel disease comorbidity. Ni et al (111) documented a Firmicutes/Bacteroidetes ratio reduction in patients with vitiligo (Table I), while Luan et al (112) observed decreased microbial alpha diversity with altered cysteine/galactose metabolism (Table I). These findings support the gut-microbiota-skin hypothesis but require further investigation for therapeutic applications.

Skin cancer (mainly melanoma)

Skin cancer is the fifth most common cancer globally, with its incidence rising (113). It arises from genetic defects or DNA mutations in skin cells, primarily due to ultraviolet exposure (114). Skin cancers are classified as malignant melanoma (MM) or non-melanoma skin cancer (NMSC). MM originates from melanocytes, while NMSC (e.g., squamous cell carcinoma, basal cell carcinoma) arises from epidermal cells (115). Treatments include cryotherapy, radiotherapy and photodynamic therapy, but novel approaches are needed (116).

MM is highly metastatic, has a poor prognosis and is the leading cause of death among patients with skin cancer (117). Mrazek et al (118) found compositional differences between melanoma and healthy skin microbiomes, with elevated Fusobacterium and Eubacterium in tumors (Table I). Mekadim et al (119) demonstrated distinct gut and skin microbiome profiles in melanoma models, addressing knowledge gaps (Table I).

Several studies confirmed that the gut microbiota can modulate the response to cancer immune checkpoint blockade therapy (120-122). Spencer et al (123) reported improved progression-free survival in ICB-treated patients with higher fiber intake, particularly without probiotics; fiber/prebiotics enhanced antitumor T-cell responses via microbiome modulation (Table I). Routy et al (124)'s phase I trial confirmed FMT safety combined with first-line melanoma therapy, though efficacy requires further validation (Fig. 2D) (Table I). Future investigations of the gut-skin axis may yield innovative therapeutic strategies for skin cancer.

Rare skin diseases (AIBD and LP)
Pemphigus and related disorders

Rare dermatoses like AIBD and LP receive limited research due to funding and recruitment challenges (125). AIBD involve chronic immune-mediated blistering, with fragile cutaneous/mucosal vesicles rupturing into erosions. These include pemphigus vulgaris (PV), bullous pemphigoid (BP) and mucous membrane pemphigoid (126). PV subtypes include vulgaris, foliaceus, IgA pemphigus and paraneoplastic pemphigus. BP, the most common pemphigoid, features tense, rupture-resistant subepidermal blisters, often involving the oropharyngeal and ocular mucosa. It primarily affects adults aged >50 years but can also occur in younger individuals (127).

Pemphigus has a long course and poor prognosis, severely affecting patients' quality of life, with most deaths due to uncontrollable secondary infections (128). The pathogenesis involves Th1/Th2 and Th17/Treg imbalances, leading to IgG autoantibodies that target epidermal/mucosal antigens, causing loss of cell adhesion and blister formation (129).

Huang et al (130) reported reduced Lachnospira/Coprococcus and elevated Aspergillus in PV fecal samples, with negative correlations between Lachnospira/Coprococcus and IL-17A suggesting T-cell modulation. Han et al (131) found a divergent gut microbiota in patients with PV vs. BP, implicating autoantibody and gut-barrier pathways.

LP

LP is a chronic inflammatory disease presenting as violaceous pruritic papules on skin, mucosa or nails. Subtypes include cutaneous LP (CLP) and oral LP (OLP), with possible esophageal, genital or nail involvement (132). The prevalence of LP ranges from 0.22 to 1%, with OLP about five times more common than CLP (133). Genital subtypes have been reported (134), and concurrent subtypes complicate diagnosis (135). The pathogenesis of CLP involves cell-mediated immune responses against basal keratinocytes (136). Georgescu et al (137) reported an oxidant-antioxidant imbalance in patients with LP, suggesting oxidative stress plays a role.

Few studies have focused on the role of the 'gut microbe-skin axis' in rare skin diseases such as LP and pemphigus (22). Li et al (138) observed a distinct gut microbiota in patients with active pemphigus, with Prevotella spp. and Coriobacteriaceae abundance correlating with autoantibodies. Roy et al (139) reviewed intestinal microecological dysregulation in several rare diseases, including LP, and highlighted the complexity of host-microbiota interactions, emphasizing knowledge gaps, the need for improved study designs, and the promise of microbiome-based therapeutics. Kamal et al (140)'s trial on 60 patients with OLP showed a greater reduction in pain and Thongprasom scores with combined clobetasol/probiotic therapy vs. clobetasol alone. Despite research challenges, such as scarce pathogenic data and small cohorts, elucidating microbiota-skin interactions could yield novel diagnostics and therapies for rare dermatoses.

Challenges and prospects for preclinical and clinical research

Methodological advances and challenges: Data collection and analysis techniques

Despite progress, translating gut microbiome research into clinical applications remains challenging. Methodological limitations in data collection, representativeness and analysis are key barriers. Resources like GMrepo (https://gmrepo.humangut.info/home) and gutMGene (https://bio-computing.hrbmu.edu.cn/gutmgene/#/home) provide valuable data, but heterogeneity due to geographic, demographic and lifestyle factors complicates sampling and standardization (Fig. 2A). The lack of a consensus definition for 'healthy gut microbiota' impedes benchmark establishment (141,142).

Analytical techniques involve sequencing and data analysis (Fig. 2A). Sequencing and analysis methods face several limitations. High-throughput 16S rRNA sequencing offers taxonomic profiling but lacks strain-level resolution and poorly detects archaea/viruses. Whole-genome shotgun metagenomics enables functional insights but requires computational resources for high-dimensional data integration (143). Microbiome-wide association studies link microbial patterns to diseases like obesity and colorectal cancer (144), but cannot establish any causality due to confounders like medications and comorbidities (145). Integrative multi-omics approaches (e.g., metagenomics, metabolomics) and genome-wide association studies provide deeper insights (146,147) but require advanced normalization to address batch effects. Machine learning shows promise for modeling microbial interactions and predicting functional outputs from fragmented data (148). Ma et al (149) applied machine learning to identify diagnostic gut microbiome biomarkers for AD, enabling precision management.

Ethical issues and safety considerations

FMT, probiotics and prebiotics present ethical and safety challenges. Al-Bakri et al (150) highlighted skepticism among Jordanian medical workers regarding FMT efficacy, influenced by cultural and religious factors. Patients expressed safety concerns about infection risks. Regulatory complexity arises from divergent global standards; the Food and Drug Administration (FDA) classifies FMT as an investigational drug requiring rigorous oversight. Two microbiota-derived therapeutics are FDA-approved: Rebyota® (RBX2660; Ferring Pharmaceuticals) and VOWST™ (SER-109; Seres Therapeutics) (151).

Patient and provider acceptance barriers persist, especially in culturally conservative settings. Probiotics, though generally safer than FMT, carry risks such as bacteremia in immunocompromised hosts and horizontal gene transfer (152,153). Cases like Lactobacillus rhamnosus infections in immunosuppressed individuals underscore the need for further safety research (154-156).

Future directions and prospects

Preclinical gut microbiome research will continue diversifying. International data-sharing collaborations may overcome ethnographic limitations (157). Integrating medicine, biology and informatics could expand the research scope, as seen in machine learning applications for microbial community analysis (158). Current algorithms predict health status and identify disease-microbiome associations through differential abundance analysis (159).

In clinical translation, precision medicine requires refinement. Longitudinal studies with larger cohorts may better evaluate probiotic efficacy across populations, informing targeted microbiome-based interventions using adaptive trial designs (e.g., cluster randomized controlled trials). These frameworks would strengthen disease prevention and treatment strategies.

Emerging technologies like high-intensity ultrasound show potential for enhancing functional food development by improving probiotic stability and bioactivity (160), Future validation studies should assess gut health optimization and personalized approaches (161,162). Beyond dairy probiotics, fermented foods and beverages are demonstrating health benefits (163,164).

Conclusions

The following conclusions can be drawn from the present review: i) The gut-skin axis framework highlights the influence of gut microbiota on skin homeostasis, with dysbiosis implicated in psoriasis, AD, acne and AIBD; ii) the gut microbiota modulates skin health through immune regulation, microbial metabolite production (e.g., SCFAs) and systemic inflammation control. FMT, probiotics and prebiotics show promise in restoring microbial balance and reducing inflammation, though larger trials are needed; iii) current evidence primarily establishes correlations, but causal relationships require validation via multi-omics approaches integrating genomics, metabolomics and immune profiling; iv) clinical translation faces challenges including methodological limitations, ethical concerns with FMT and insufficient long-term safety data for probiotics; v) mechanistic insights into rare skin diseases via the gut-skin axis are scarce, warranting targeted investigations; vi) future research should prioritize patient-specific microbiome interventions, machine-learning diagnostics and cross-disciplinary collaboration (e.g., dermatology-gastroenterology-bioinformatics) to advance precision dermatology; and vii) the gut-skin axis redefines skincare paradigms, emphasizing gut health as integral to dermatological wellness, with breakthroughs in microbiome engineering and Artificial Intelligence-driven interventions offering transformative potential.

Availability of data and materials

Not applicable.

Authors' contributions

YZ performed the analyses and wrote the first draft of the manuscript. CY, JZ, QY, XZ and XZ performed the literature search and discussed and edited the manuscript. XZ and XZ supervised the preparation of the manuscript. Data authentication is not applicable. All authors have read and approved the final manuscript.

Ethics approval and consent to participate

Not applicable.

Patient consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

Acknowledgements

Not applicable.

Funding

This study was partially supported by the National Natural Science Foundation of China (grant nos. 32170915 and 82172931).

References

1 

Karimzadeh F, Soltani Fard E, Nadi A, Malekzadeh R, Elahian F and Mirzaei SA: Advances in skin gene therapy: Utilizing innovative dressing scaffolds for wound healing, a comprehensive review. J Mater Chem B. 12:6033–6062. 2024. View Article : Google Scholar : PubMed/NCBI

2 

Shi N, Li N, Duan X and Niu H: Interaction between the gut microbiome and mucosal immune system. Mil Med Res. 4:142017.PubMed/NCBI

3 

Wang J, He M, Yang M and Ai X: Gut microbiota as a key regulator of intestinal mucosal immunity. Life Sci. 345:1226122024. View Article : Google Scholar : PubMed/NCBI

4 

Ezenabor EH, Adeyemi AA and Adeyemi OS: Gut microbiota and metabolic syndrome: Relationships and opportunities for new therapeutic strategies. Scientifica (Cairo). 2024:42220832024. View Article : Google Scholar : PubMed/NCBI

5 

Saarialho-Kere U: The gut-skin axis. J Pediatr Gastroenterol Nutr. 39(Suppl 3): S734–S735. 2004. View Article : Google Scholar : PubMed/NCBI

6 

Lee HR and Sung JH: Multiorgan-on-a-chip for the realization of gut-skin axis. Biotechnol Bioeng. 119:2590–2601. 2022. View Article : Google Scholar : PubMed/NCBI

7 

Szanto M, Dozsa A, Antal D, Szabo K, Kemeny L and Bai P: Targeting the gut-skin axis-Probiotics as new tools for skin disorder management? Exp Dermatol. 28:1210–1218. 2019. View Article : Google Scholar : PubMed/NCBI

8 

Suaini NHA, Siah KTH and Tham EH: Role of the gut-skin axis in IgE-mediated food allergy and atopic diseases. Curr Opin Gastroenterol. 37:557–564. 2021. View Article : Google Scholar : PubMed/NCBI

9 

Alesa DI, Alshamrani HM, Alzahrani YA, Alamssi DN, Alzahrani NS and Almohammadi ME: The role of gut microbiome in the pathogenesis of psoriasis and the therapeutic effects of probiotics. J Family Med Prim Care. 8:3496–3503. 2019. View Article : Google Scholar : PubMed/NCBI

10 

Gomaa EZ: Human gut microbiota/microbiome in health and diseases: A review. Antonie Van Leeuwenhoek. 113:2019–2040. 2020. View Article : Google Scholar : PubMed/NCBI

11 

Adak A and Khan MR: An insight into gut microbiota and its functionalities. Cell Mol Life Sci. 76:473–493. 2019. View Article : Google Scholar

12 

Zmora N, Suez J and Elinav E: You are what you eat: Diet, health, and the gut microbiota. Nat Rev Gastroenterol Hepatol. 16:35–56. 2019. View Article : Google Scholar

13 

Milani C, Duranti S, Bottacini F, Casey E, Turroni F, Mahony J, Belzer C, Delgado Palacio S, Arboleya Montes S, Mancabelli L, et al: The first microbial colonizers of the human gut: Composition, activities, and health implications of the infant gut microbiota. Microbiol Mol Biol Rev. 81:e00036–17. 2017. View Article : Google Scholar : PubMed/NCBI

14 

Aggarwal N, Kitano S, Puah GRY, Kittelmann S, Hwang IY and Chang MW: Microbiome and human health: Current understanding, engineering, and enabling technologies. Chem Rev. 123:31–72. 2023. View Article : Google Scholar :

15 

Banaszak M, Gorna I, Wozniak D, Przyslawski J and Drzymala-Czyz S: Association between gut dysbiosis and the occurrence of SIBO, LIBO, SIFO and IMO. Microorganisms. 11:5732023. View Article : Google Scholar : PubMed/NCBI

16 

Lee HJ and Kim M: Skin barrier function and the microbiome. Int J Mol Sci. 23:130712022. View Article : Google Scholar : PubMed/NCBI

17 

Chen YE, Fischbach MA and Belkaid Y: Skin microbiota-host interactions. Nature. 553:427–436. 2018. View Article : Google Scholar : PubMed/NCBI

18 

Smythe P and Wilkinson HN: The skin microbiome: Current landscape and future opportunities. Int J Mol Sci. 24:39502023. View Article : Google Scholar : PubMed/NCBI

19 

Mahmud MR, Akter S, Tamanna SK, Mazumder L, Esti IZ, Banerjee S, Akter S, Hasan MR, Acharjee M, Hossain MS and Pirttilä AM: Impact of gut microbiome on skin health: Gut-skin axis observed through the lenses of therapeutics and skin diseases. Gut Microbes. 14:20969952022. View Article : Google Scholar : PubMed/NCBI

20 

Petersen C and Round JL: Defining dysbiosis and its influence on host immunity and disease. Cell Microbiol. 16:1024–1033. 2014. View Article : Google Scholar : PubMed/NCBI

21 

Rygula I, Pikiewicz W, Grabarek BO, Wojcik M and Kaminiow K: The role of the gut microbiome and microbial dysbiosis in common skin diseases. Int J Mol Sci. 25:19842024. View Article : Google Scholar : PubMed/NCBI

22 

Karimova M, Moyes D, Ide M and Setterfield JF: The human microbiome in immunobullous disorders and lichen planus. Clin Exp Dermatol. 47:522–528. 2022. View Article : Google Scholar

23 

Ahlawat S, Asha and Sharma KK: Gut-organ axis: A microbial outreach and networking. Lett Appl Microbiol. 72:636–668. 2021. View Article : Google Scholar

24 

Guo Y, Chen X, Gong P, Li G, Yao W and Yang W: The gut-organ-axis concept: Advances the application of gut-on-chip technology. Int J Mol Sci. 24:40892023. View Article : Google Scholar : PubMed/NCBI

25 

Yano JM, Yu K, Donaldson GP, Shastri GG, Ann P, Ma L, Nagler CR, Ismagilov RF, Mazmanian SK and Hsiao EY: Indigenous bacteria from the gut microbiota regulate host serotonin biosynthesis. Cell. 161:264–276. 2015. View Article : Google Scholar : PubMed/NCBI

26 

Salem I, Ramser A, Isham N and Ghannoum MA: The gut microbiome as a major regulator of the gut-skin axis. Front Microbiol. 9:14592018. View Article : Google Scholar : PubMed/NCBI

27 

Komine M: Recent advances in psoriasis research; The clue to mysterious relation to gut microbiome. Int J Mol Sci. 21:25822020. View Article : Google Scholar : PubMed/NCBI

28 

Buhas MC, Gavrilas LI, Candrea R, Catinean A, Mocan A, Miere D and Tătaru A: Gut microbiota in psoriasis. Nutrients. 14:29702022. View Article : Google Scholar : PubMed/NCBI

29 

Frioux C, Ansorge R, Ozkurt E, Ghassemi Nedjad C, Fritscher J, Quince C, Waszak SM and Hildebrand F: Enterosignatures define common bacterial guilds in the human gut microbiome. Cell Host Microbe. 31:1111–1125 e6. 2023. View Article : Google Scholar : PubMed/NCBI

30 

Quaglio AEV, Grillo TG, De Oliveira ECS, Di Stasi LC and Sassaki LY: Gut microbiota, inflammatory bowel disease, and colorectal cancer. World J Gastroenterol. 28:4053–4060. 2022. View Article : Google Scholar : PubMed/NCBI

31 

Manos J: The human microbiome in disease and pathology. APMIS. 130:690–705. 2022. View Article : Google Scholar : PubMed/NCBI

32 

Wu J, Wang K, Wang X, Pang Y and Jiang C: The role of the gut microbiome and its metabolites in metabolic diseases. Protein Cell. 12:360–373. 2021. View Article : Google Scholar :

33 

Chen Y, Zhou J and Wang L: Role and mechanism of gut microbiota in human disease. Front Cell Infect Microbiol. 11:6259132021. View Article : Google Scholar : PubMed/NCBI

34 

Olejniczak-Staruch I, Ciazynska M, Sobolewska-Sztychny D, Narbutt J, Skibinska M and Lesiak A: Alterations of the skin and gut microbiome in psoriasis and psoriatic arthritis. Int J Mol Sci. 22:39982021. View Article : Google Scholar : PubMed/NCBI

35 

Park DH, Kim JW, Park HJ and Hahm DH: Comparative analysis of the microbiome across the gut-skin axis in atopic dermatitis. Int J Mol Sci. 22:42282021. View Article : Google Scholar : PubMed/NCBI

36 

Stec A, Sikora M, Maciejewska M, Paralusz-Stec K, Michalska M, Sikorska E and Rudnicka L: Bacterial metabolites: A link between gut microbiota and dermatological diseases. Int J Mol Sci. 24:34942023. View Article : Google Scholar : PubMed/NCBI

37 

Trompette A, Pernot J, Perdijk O, Alqahtani RAA, Domingo JS, Camacho-Munoz D, Wong NC, Kendall AC, Wiederkehr A, Nicod LP, et al: Gut-derived short-chain fatty acids modulate skin barrier integrity by promoting keratinocyte metabolism and differentiation. Mucosal Immunol. 15:908–926. 2022. View Article : Google Scholar : PubMed/NCBI

38 

Fang Z, Pan T, Li L, Wang H, Zhu J, Zhang H, Zhao J, Chen W and Lu W: Bifidobacterium longum mediated tryptophan metabolism to improve atopic dermatitis via the gut-skin axis. Gut Microbes. 14:20447232022. View Article : Google Scholar : PubMed/NCBI

39 

Su X, Gao Y and Yang R: Gut microbiota-derived tryptophan metabolites maintain gut and systemic homeostasis. Cells. 11:22962022. View Article : Google Scholar : PubMed/NCBI

40 

Kinashi Y and Hase K: Partners in leaky gut syndrome: intestinal dysbiosis and autoimmunity. Front Immunol. 12:6737082021. View Article : Google Scholar : PubMed/NCBI

41 

Marrs T, Jo JH, Perkin MR, Rivett DW, Witney AA, Bruce KD, Logan K, Craven J, Radulovic S, Versteeg SA, et al: Gut microbiota development during infancy: Impact of introducing allergenic foods. J Allergy Clin Immunol. 147:613–621 e9. 2021. View Article : Google Scholar : PubMed/NCBI

42 

Jiao Y, Wu L, Huntington ND and Zhang X: Crosstalk between gut microbiota and innate immunity and its implication in autoimmune diseases. Front Immunol. 11:2822020. View Article : Google Scholar : PubMed/NCBI

43 

Dokoshi T, Chen Y, Cavagnero KJ, Rahman G, Hakim D, Brinton S, Schwarz H, Brown EA, O'Neill A, Nakamura Y, et al: Dermal injury drives a skin-to-gut axis that disrupts the intestinal microbiome and intestinal immune homeostasis in mice. Nat Commun. 15:30092024. View Article : Google Scholar

44 

Long J, Gu J, Yang J, Chen P, Dai Y, Lin Y, Wu M and Wu Y: Exploring the association between gut microbiota and inflammatory skin diseases: A two-sample mendelian randomization analysis. Microorganisms. 11:25862023. View Article : Google Scholar : PubMed/NCBI

45 

Glutsch V, Hamm H and Goebeler M: Zinc and skin: An update. J Dtsch Dermatol Ges. 17:589–596. 2019.PubMed/NCBI

46 

Therrien A, Kelly CP and Silvester JA: Celiac disease: Extraintestinal manifestations and associated conditions. J Clin Gastroenterol. 54:8–21. 2020. View Article : Google Scholar

47 

Ni Q, Zhang P, Li Q and Han Z: Oxidative stress and gut microbiome in inflammatory skin diseases. Front Cell Dev Biol. 10:8499852022. View Article : Google Scholar : PubMed/NCBI

48 

Lee SY, Jhun J, Woo JS, Lee KH, Hwang SH, Moon J, Park G, Choi SS, Kim SJ, Jung YJ, et al: Gut microbiome-derived butyrate inhibits the immunosuppressive factors PD-L1 and IL-10 in tumor-associated macrophages in gastric cancer. Gut Microbes. 16:23008462024. View Article : Google Scholar : PubMed/NCBI

49 

Xiao P, Hu Z, Lang J, Pan T, Mertens RT, Zhang H, Guo K, Shen M, Cheng H, Zhang X, et al: Mannose metabolism normalizes gut homeostasis by blocking the TNF-α-mediated proinflammatory circuit. Cell Mol Immunol. 20:119–130. 2023. View Article : Google Scholar

50 

Yadegar A, Bar-Yoseph H, Monaghan TM, Pakpour S, Severino A, Kuijper EJ, Smits WK, Terveer EM, Neupane S, Nabavi-Rad A, et al: Fecal microbiota transplantation: current challenges and future landscapes. Clin Microbiol Rev. 37:e00060222024. View Article : Google Scholar : PubMed/NCBI

51 

Joachim A, Schwerd T, Holz H, Sokollik C, Konrad LA, Jordan A, Lanzersdorfer R, Schmidt-Choudhury A, Hünseler C and Adam R: Fecal Microbiota Transfer (FMT) in children and adolescents-review and statement by the GPGE microbiome working group. Z Gastroenterol. 60:963–969. 2022.PubMed/NCBI

52 

Porcari S, Severino A, Rondinella D, Bibbo S, Quaranta G, Masucci L, Maida M, Scaldaferri F, Sanguinetti M, Gasbarrini A, et al: Fecal microbiota transplantation for recurrent Clostridioides difficile infection in patients with concurrent ulcerative colitis. J Autoimmun. 141:1030332023. View Article : Google Scholar : PubMed/NCBI

53 

Porcari S, Baunwall SMD, Occhionero AS, Ingrosso MR, Ford AC, Hvas CL, Gasbarrini A, Cammarota G and Ianiro G: Fecal microbiota transplantation for recurrent C. difficile infection in patients with inflammatory bowel disease: A systematic review and meta-analysis. J Autoimmun. 141:1030362023. View Article : Google Scholar : PubMed/NCBI

54 

Porcari S, Benech N, Valles-Colomer M, Segata N, Gasbarrini A, Cammarota G, Sokol H and Ianiro G: Key determinants of success in fecal microbiota transplantation: From microbiome to clinic. Cell Host Microbe. 31:712–733. 2023. View Article : Google Scholar : PubMed/NCBI

55 

Kim JH, Kim K and Kim W: Gut microbiota restoration through fecal microbiota transplantation: A new atopic dermatitis therapy. Exp Mol Med. 53:907–916. 2021. View Article : Google Scholar : PubMed/NCBI

56 

Liu YH, Chen J, Chen X and Liu H: Factors of faecal microbiota transplantation applied to cancer management. J Drug Target. 32:101–114. 2024. View Article : Google Scholar : PubMed/NCBI

57 

Arnold M, Singh D, Laversanne M, Vignat J, Vaccarella S, Meheus F, Cust AE, de Vries E, Whiteman DC and Bray F: Global burden of cutaneous melanoma in 2020 and projections to 2040. JAMA Dermatol. 158:495–503. 2022. View Article : Google Scholar : PubMed/NCBI

58 

Baruch EN, Youngster I, Ben-Betzalel G, Ortenberg R, Lahat A, Katz L, Adler K, Dick-Necula D, Raskin S, Bloch N, et al: Fecal microbiota transplant promotes response in immunotherapy-refractory melanoma patients. Science. 371:602–609. 2021. View Article : Google Scholar

59 

Liu X, Luo Y, Chen X, Wu M, Xu X, Tian J, Gao Y, Zhu J, Wang Z, Zhou Y, et al: Fecal microbiota transplantation against moderate-to-severe atopic dermatitis: A randomized, double-blind controlled exploratory trial. Allergy. 80:1377–1388. 2025. View Article : Google Scholar

60 

Eshel A, Sharon I, Nagler A, Bomze D, Danylesko I, Fein JA, Geva M, Henig I, Shimoni A, Zuckerman T, et al: Origins of bloodstream infections following fecal microbiota transplantation: A strain-level analysis. Blood Adv. 6:568–573. 2022. View Article : Google Scholar :

61 

Gibson GR and Roberfroid MB: Dietary modulation of the human colonic microbiota: Introducing the concept of prebiotics. J Nutr. 125:1401–1412. 1995. View Article : Google Scholar : PubMed/NCBI

62 

Hill C, Guarner F, Reid G, Gibson GR, Merenstein DJ, Pot B, Morelli L, Canani RB, Flint HJ, Salminen S, et al: Expert consensus document. The International Scientific Association for Probiotics and Prebiotics consensus statement on the scope and appropriate use of the term probiotic. Nat Rev Gastroenterol Hepatol. 11:506–514. 2014. View Article : Google Scholar : PubMed/NCBI

63 

Manzoor S, Wani SM, Ahmad Mir S and Rizwan D: Role of probiotics and prebiotics in mitigation of different diseases. Nutrition. 96:1116022022. View Article : Google Scholar : PubMed/NCBI

64 

Oniszczuk A, Oniszczuk T, Gancarz M and Szymanska J: Role of gut microbiota, probiotics and prebiotics in the cardiovascular diseases. Molecules. 26:11722021. View Article : Google Scholar : PubMed/NCBI

65 

Rahmayani T, Putra IB and Jusuf NK: The effect of oral probiotics on the interleukin-10 serum levels of acne vulgaris. Open Access Maced J Med Sci. 7:3249–5322. 2019. View Article : Google Scholar

66 

Ouyang W and O'Garra A: IL-10 family cytokines IL-10 and IL-22: From basic science to clinical translation. Immunity. 50:871–891. 2019. View Article : Google Scholar : PubMed/NCBI

67 

Buhas MC, Candrea R, Gavrilas LI, Miere D, Tataru A, Boca A and Cătinean A: Transforming psoriasis care: Probiotics and prebiotics as novel therapeutic approaches. Int J Mol Sci. 24:112252023. View Article : Google Scholar : PubMed/NCBI

68 

Stein-Thoeringer CK, Saini NY, Zamir E, Blumenberg V, Schubert ML, Mor U, Fante MA, Schmidt S, Hayase E, Hayase T, et al: A non-antibiotic-disrupted gut microbiome is associated with clinical responses to CD19-CAR-T cell cancer immunotherapy. Nat Med. 29:906–916. 2023. View Article : Google Scholar : PubMed/NCBI

69 

Bender MJ, McPherson AC, Phelps CM, Pandey SP, Laughlin CR, Shapira JH, Medina Sanchez L, Rana M, Richie TG, Mims TS, et al: Dietary tryptophan metabolite released by intratumoral Lactobacillus reuteri facilitates immune checkpoint inhibitor treatment. Cell. 186:1846–1862 e26. 2023. View Article : Google Scholar : PubMed/NCBI

70 

Raharja A, Mahil SK and Barker JN: Psoriasis: A brief overview. Clin Med (Lond). 21:170–173. 2021. View Article : Google Scholar : PubMed/NCBI

71 

Hidalgo-Cantabrana C, Gomez J, Delgado S, Requena-Lopez S, Queiro-Silva R, Margolles A, Coto E, Sánchez B and Coto-Segura P: Gut microbiota dysbiosis in a cohort of patients with psoriasis. Br J Dermatol. 181:1287–1295. 2019. View Article : Google Scholar : PubMed/NCBI

72 

Zang C, Liu J, Mao M, Zhu W, Chen W and Wei B: Causal associations between gut microbiota and psoriasis: A mendelian randomization study. Dermatol Ther (Heidelb). 13:2331–2343. 2023. View Article : Google Scholar : PubMed/NCBI

73 

Zhao Q, Yu J, Zhou H, Wang X, Zhang C, Hu J, Hu Y, Zheng H, Zeng F, Yue C, et al: Intestinal dysbiosis exacerbates the pathogenesis of psoriasis-like phenotype through changes in fatty acid metabolism. Signal Transduct Target Ther. 8:402023. View Article : Google Scholar : PubMed/NCBI

74 

Sroka-Tomaszewska J and Trzeciak M: Molecular mechanisms of atopic dermatitis pathogenesis. Int J Mol Sci. 22:41302021. View Article : Google Scholar : PubMed/NCBI

75 

Langan SM, Irvine AD and Weidinger S: Atopic dermatitis. Lancet. 396:345–360. 2020. View Article : Google Scholar : PubMed/NCBI

76 

Schuler CF IV, Tsoi LC, Billi AC, Harms PW, Weidinger S and Gudjonsson JE: Genetic and immunological pathogenesis of atopic dermatitis. J Invest Dermatol. 144:954–968. 2024. View Article : Google Scholar :

77 

Lee SY, Lee E, Park YM and Hong SJ: Microbiome in the gut-skin axis in atopic dermatitis. Allergy Asthma Immunol Res. 10:354–362. 2018. View Article : Google Scholar : PubMed/NCBI

78 

Frazier W and Bhardwaj N: Atopic dermatitis: Diagnosis and treatment. Am Fam Physician. 101:590–598. 2020.PubMed/NCBI

79 

Jiang W, Ni B, Liu Z, Liu X, Xie W, Wu IXY and Li X: The role of probiotics in the prevention and treatment of atopic dermatitis in children: An updated systematic review and meta-analysis of randomized controlled trials. Paediatr Drugs. 22:535–549. 2020. View Article : Google Scholar : PubMed/NCBI

80 

D'Elios S, Trambusti I, Verduci E, Ferrante G, Rosati S, Marseglia GL, Drago L and Peroni DG: Probiotics in the prevention and treatment of atopic dermatitis. Pediatr Allergy Immunol. 31(Suppl 26): S43–S45. 2020. View Article : Google Scholar

81 

Umborowati MA, Damayanti D, Anggraeni S, Endaryanto A, Surono IS, Effendy I and Prakoeswa CRS: The role of probiotics in the treatment of adult atopic dermatitis: A meta-analysis of randomized controlled trials. J Health Popul Nutr. 41:372022. View Article : Google Scholar : PubMed/NCBI

82 

Fang Z, Lu W, Zhao J, Zhang H, Qian L, Wang Q and Chen W: Probiotics modulate the gut microbiota composition and immune responses in patients with atopic dermatitis: A pilot study. Eur J Nutr. 59:2119–2130. 2020. View Article : Google Scholar

83 

Sanchez-Pellicer P, Navarro-Moratalla L, Nunez-Delegido E, Ruzafa-Costas B, Aguera-Santos J and Navarro-Lopez V: Acne, microbiome, and probiotics: The gut-skin axis. Microorganisms. 10:13032022. View Article : Google Scholar : PubMed/NCBI

84 

Vos T, Flaxman AD, Naghavi M, Lozano R, Michaud C, Ezzati M, Shibuya K, Salomon JA, Abdalla S, Aboyans V, et al: Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries, 1990-2010: A systematic analysis for the Global Burden of Disease Study 2010. Lancet. 380:2163–2196. 2012. View Article : Google Scholar : PubMed/NCBI

85 

Kutlu O, Karadag AS and Wollina U: Adult acne versus adolescent acne: A narrative review with a focus on epidemiology to treatment. An Bras Dermatol. 98:75–83. 2023. View Article : Google Scholar :

86 

Chilicka K, Rogowska AM, Szygula R, Dziendziora-Urbinska I and Taradaj J: A comparison of the effectiveness of azelaic and pyruvic acid peels in the treatment of female adult acne: A randomized controlled trial. Sci Rep. 10:126122020. View Article : Google Scholar : PubMed/NCBI

87 

Bowe W, Patel NB and Logan AC: Acne vulgaris, probiotics, and the gut-brain-skin axis: From anecdote to translational medicine. Beneficial Microbes. 5:185–199. 2014. View Article : Google Scholar

88 

Mohsin N, Hernandez LE, Martin MR, Does AV and Nouri K: Acne treatment review and future perspectives. Dermatol Ther. 35:e157192022. View Article : Google Scholar : PubMed/NCBI

89 

Jung GW, Tse JE, Guiha I and Rao J: Prospective, randomized, open-label trial comparing the safety, efficacy, and tolerability of an acne treatment regimen with and without a probiotic supplement and minocycline in subjects with mild to moderate acne. J Cutan Med Surg. 17:114–122. 2013. View Article : Google Scholar : PubMed/NCBI

90 

Fabbrocini G, Bertona M, Picazo O, Pareja-Galeano H, Monfrecola G and Emanuele E: Supplementation with Lactobacillus rhamnosus SP1 normalises skin expression of genes implicated in insulin signalling and improves adult acne. Benef Microbes. 7:625–630. 2016. View Article : Google Scholar : PubMed/NCBI

91 

Eguren C, Navarro-Blasco A, Corral-Forteza M, Reolid-Perez A, Seto-Torrent N, Garcia-Navarro A, Prieto-Merino D, Núñez-Delegido E, Sánchez-Pellicer P and Navarro-López V: A randomized clinical trial to evaluate the efficacy of an oral probiotic in acne vulgaris. Acta Derm Venereol. 104:adv332062024. View Article : Google Scholar : PubMed/NCBI

92 

van Zuuren EJ, Arents BWM, van der Linden MMD, Vermeulen S, Fedorowicz Z and Tan J: Rosacea: New concepts in classification and treatment. Am J Clin Dermatol. 22:457–465. 2021. View Article : Google Scholar : PubMed/NCBI

93 

Ivanic MG, Oulee A, Norden A, Javadi SS, Gold MH and Wu JJ: Neurogenic rosacea treatment: A literature review. J Drugs Dermatol. 22:566–575. 2023. View Article : Google Scholar : PubMed/NCBI

94 

Haber R and El Gemayel M: Comorbidities in rosacea: A systematic review and update. J Am Acad Dermatol. 78:786–792 e8. 2018. View Article : Google Scholar

95 

Jun YK, Yu DA, Han YM, Lee SR, Koh SJ and Park H: The relationship between rosacea and inflammatory bowel disease: A systematic review and meta-analysis. Dermatol Ther (Heidelb). 13:1465–1475. 2023. View Article : Google Scholar : PubMed/NCBI

96 

Li M, He SX, He YX, Hu XH and Zhou Z: Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization. Sci Rep. 13:149102023. View Article : Google Scholar : PubMed/NCBI

97 

Manzhalii E, Hornuss D and Stremmel W: Intestinal-borne dermatoses significantly improved by oral application of Escherichia coli Nissle 1917. World J Gastroenterol. 22:5415–5421. 2016. View Article : Google Scholar : PubMed/NCBI

98 

Fortuna MC, Garelli V, Pranteda G, Romaniello F, Cardone M, Carlesimo M and Rossi A: A case of scalp rosacea treated with low-dose doxycycline and probiotic therapy and literature review on therapeutic options. Dermatol Ther. 29:249–251. 2016. View Article : Google Scholar : PubMed/NCBI

99 

Zuberbier T, Abdul Latiff AH, Abuzakouk M, Aquilina S, Asero R, Baker D, Ballmer-Weber B, Bangert C, Ben-Shoshan M, Bernstein JA, et al: The international EAACI/GA(2)LEN/EuroGuiDerm/APAAACI guideline for the definition, classification, diagnosis, and management of urticaria. Allergy. 77:734–766. 2022. View Article : Google Scholar

100 

Kaplan A, Lebwohl M, Gimenez-Arnau AM, Hide M, Armstrong AW and Maurer M: Chronic spontaneous urticaria: Focus on pathophysiology to unlock treatment advances. Allergy. 78:389–401. 2023. View Article : Google Scholar

101 

Kolkhir P, Gimenez-Arnau AM, Kulthanan K, Peter J, Metz M and Maurer M: Urticaria. Nat Rev Dis Primers. 8:612022. View Article : Google Scholar : PubMed/NCBI

102 

Wang D, Guo S, He H, Gong L and Cui H: Gut microbiome and serum metabolome analyses identify unsaturated fatty acids and butanoate metabolism induced by gut microbiota in patients with chronic spontaneous urticaria. Front Cell Infect Microbiol. 10:242020. View Article : Google Scholar : PubMed/NCBI

103 

Luo Z, Jin Z, Tao X, Wang T, Wei P, Zhu C and Wang Z: Combined microbiome and metabolome analysis of gut microbiota and metabolite interactions in chronic spontaneous urticaria. Front Cell Infect Microbiol. 12:10947372023. View Article : Google Scholar : PubMed/NCBI

104 

Fu HY, Yu HD, Bai YP, Yue LF, Wang HM and Li LL: Effect and safety of probiotics for treating urticaria: A systematic review and meta-analysis. J Cosmet Dermatol. 22:2663–2670. 2023. View Article : Google Scholar : PubMed/NCBI

105 

Bi XD, Lu BZ, Pan XX, Liu S and Wang JY: Adjunct therapy with probiotics for chronic urticaria in children: Randomised placebo-controlled trial. Allergy Asthma Clin Immunol. 17:392021. View Article : Google Scholar : PubMed/NCBI

106 

Spritz RA and Santorico SA: The genetic basis of vitiligo. J Invest Dermatol. 141:265–273. 2021. View Article : Google Scholar

107 

Bergqvist C and Ezzedine K: Vitiligo: A review. Dermatology. 236:571–592. 2020. View Article : Google Scholar : PubMed/NCBI

108 

Frisoli ML, Essien K and Harris JE: Vitiligo: Mechanisms of pathogenesis and treatment. Annu Rev Immunol. 38:621–648. 2020. View Article : Google Scholar : PubMed/NCBI

109 

Kussainova A, Kassym L, Akhmetova A, Glushkova N, Sabirov U, Adilgozhina S, Tuleutayeva R and Semenova Y: Vitiligo and anxiety: A systematic review and meta-analysis. PLoS One. 15:e02414452020. View Article : Google Scholar : PubMed/NCBI

110 

Hadi A, Wang JF, Uppal P, Penn LA and Elbuluk N: Comorbid diseases of vitiligo: A 10-year cross-sectional retrospective study of an urban US population. J Am Acad Dermatol. 82:628–633. 2020. View Article : Google Scholar

111 

Ni Q, Ye Z, Wang Y, Chen J, Zhang W, Ma C, Li K, Liu Y, Liu L, Han Z, et al: Gut microbial dysbiosis and plasma metabolic profile in individuals with vitiligo. Front Microbiol. 11:5922482020. View Article : Google Scholar :

112 

Luan M, Niu M, Yang P, Han D, Zhang Y, Li W, He Q, Zhao Y, Mao B, Chen J, et al: Metagenomic sequencing reveals altered gut microbial compositions and gene functions in patients with non-segmental vitiligo. BMC Microbiol. 23:2652023. View Article : Google Scholar : PubMed/NCBI

113 

Siegel RL, Miller KD, Wagle NS and Jemal A: Cancer statistics, 2023. CA Cancer J Clin. 73:17–48. 2023.PubMed/NCBI

114 

Arivazhagan N, Mukunthan MA, Sundaranarayana D, Shankar A, Vinoth Kumar S, Kesavan R, Chandrasekaran S, Shyamala Devi M, Maithili K, Barakkath Nisha U and Abebe TG: Analysis of skin cancer and patient healthcare using data mining techniques. Comput Intell Neurosci. 2022:22502752022. View Article : Google Scholar : PubMed/NCBI

115 

Hasan N, Nadaf A, Imran M, Jiba U, Sheikh A, Almalki WH, Almujri SS, Mohammed YH, Kesharwani P and Ahmad FJ: Skin cancer: Understanding the journey of transformation from conventional to advanced treatment approaches. Mol Cancer. 22:1682023. View Article : Google Scholar : PubMed/NCBI

116 

Jindal M, Kaur M, Nagpal M, Singh M, Aggarwal G and Dhingra GA: Skin cancer management: Current scenario and future perspectives. Curr Drug Saf. 18:143–158. 2023. View Article : Google Scholar

117 

Abbas O, Miller DD and Bhawan J: Cutaneous malignant melanoma: Update on diagnostic and prognostic biomarkers. Am J Dermatopathol. 36:363–379. 2014. View Article : Google Scholar : PubMed/NCBI

118 

Mrazek J, Mekadim C, Kucerova P, Svejstil R, Salmonova H, Vlasakova J, Tarasová R, Čížková J and Červinková M: Melanoma-related changes in skin microbiome. Folia Microbiol (Praha). 64:435–442. 2019. View Article : Google Scholar

119 

Mekadim C, Skalnikova HK, Cizkova J, Cizkova V, Palanova A, Horak V and Mrazek J: Dysbiosis of skin microbiome and gut microbiome in melanoma progression. BMC Microbiol. 22:632022. View Article : Google Scholar : PubMed/NCBI

120 

Jia D, Wang Q, Qi Y, Jiang Y, He J, Lin Y, Sun Y, Xu J, Chen W, Fan L, et al: Microbial metabolite enhances immunotherapy efficacy by modulating T cell stemness in pan-cancer. Cell. 187:1651–1665 e21. 2024. View Article : Google Scholar

121 

Zhou CB, Zhou YL and Fang JY: Gut microbiota in cancer immune response and immunotherapy. Trends Cancer. 7:647–660. 2021. View Article : Google Scholar : PubMed/NCBI

122 

Andrews MC, Duong CPM, Gopalakrishnan V, Iebba V, Chen WS, Derosa L, Khan MAW, Cogdill AP, White MG, Wong MC, et al: Gut microbiota signatures are associated with toxicity to combined CTLA-4 and PD-1 blockade. Nat Med. 27:1432–1441. 2021. View Article : Google Scholar : PubMed/NCBI

123 

Spencer CN, McQuade JL, Gopalakrishnan V, McCulloch JA, Vetizou M, Cogdill AP, Khan MAW, Zhang X, White MG, Peterson CB, et al: Dietary fiber and probiotics influence the gut microbiome and melanoma immunotherapy response. Science. 374:1632–1640. 2021. View Article : Google Scholar : PubMed/NCBI

124 

Routy B, Lenehan JG, Miller WH Jr, Jamal R, Messaoudene M, Daisley BA, Hes C, Al KF, Martinez-Gili L, Punčochář M, et al: Author correction: Fecal microbiota transplantation plus anti-PD-1 immunotherapy in advanced melanoma: A phase I trial. Nat Med. 30:6042024. View Article : Google Scholar

125 

Ingram J: Editor's choice: Rare skin diseases themed issue. Br J Dermatol. 182:ix2020. View Article : Google Scholar : PubMed/NCBI

126 

Buonavoglia A, Leone P, Dammacco R, Di Lernia G, Petruzzi M, Bonamonte D, Vacca A, Racanelli V and Dammacco F: Pemphigus and mucous membrane pemphigoid: An update from diagnosis to therapy. Autoimmun Rev. 18:349–358. 2019. View Article : Google Scholar : PubMed/NCBI

127 

Malik AM, Tupchong S, Huang S, Are A, Hsu S and Otaparthi K: An updated review of pemphigus diseases. Medicina (Kaunas). 57:10802021. View Article : Google Scholar : PubMed/NCBI

128 

Kridin K: Pemphigus group: overview, epidemiology, mortality, and comorbidities. Immunol Res. 66:255–270. 2018. View Article : Google Scholar : PubMed/NCBI

129 

Yamagami J: B-cell targeted therapy of pemphigus. J Dermatol. 50:124–131. 2023. View Article : Google Scholar

130 

Huang S, Mao J, Zhou L, Xiong X and Deng Y: The imbalance of gut microbiota and its correlation with plasma inflammatory cytokines in pemphigus vulgaris patients. Scand J Immunol. 90:e127992019. View Article : Google Scholar : PubMed/NCBI

131 

Han Z, Fan Y, Wu Q, Guo F, Li S, Hu X and Zuo YG: Comparison of gut microbiota dysbiosis between pemphigus vulgaris and bullous pemphigoid. Int Immunopharmacol. 128:1114702024. View Article : Google Scholar : PubMed/NCBI

132 

Ioannides D, Vakirlis E, Kemeny L, Marinovic B, Massone C, Murphy R, Nast A, Ronnevig J, Ruzicka T, Cooper SM, et al: European S1 guidelines on the management of lichen planus: A cooperation of the European Dermatology Forum with the European academy of dermatology and venereology. J Eur Acad Dermatol Venereol. 34:1403–1414. 2020. View Article : Google Scholar : PubMed/NCBI

133 

Chen K, Qin Y, Yan L, Dong Y, Lv S, Xu J, Kang N, Luo Z, Liu Y, Pu J, et al: Variations in salivary microbiota and metabolic phenotype related to oral lichen planus with psychiatric symptoms. BMC Oral Health. 25:9932025. View Article : Google Scholar : PubMed/NCBI

134 

Jacques L, Kornik R, Bennett DD and Eschenbach DA: Diagnosis and management of vulvovaginal lichen planus. Obstet Gynecol Surv. 75:624–635. 2020. View Article : Google Scholar : PubMed/NCBI

135 

van Hees CLM and van der Meij EH: Lichen planus. Ned Tijdschr Tandheelkd. 130:221–226. 2023.In Dutch. View Article : Google Scholar : PubMed/NCBI

136 

Husein-ElAhmed H, Gieler U and Steinhoff M: Lichen planus: A comprehensive evidence-based analysis of medical treatment. J Eur Acad Dermatol Venereol. 33:1847–1862. 2019. View Article : Google Scholar : PubMed/NCBI

137 

Georgescu SR, Mitran CI, Mitran MI, Nicolae I, Matei C, Ene CD, Popa GL and Tampa M: Oxidative stress in cutaneous lichen planus narrative review. J Clin Med. 10:26922021. View Article : Google Scholar

138 

Li SZ, Wu QY, Fan Y, Guo F, Hu XM and Zuo YG: Gut microbiome dysbiosis in patients with pemphigus and correlation with pathogenic autoantibodies. Biomolecules. 14:8802024. View Article : Google Scholar : PubMed/NCBI

139 

Roy S, Nag S, Saini A and Choudhury L: Association of human gut microbiota with rare diseases: A close peek through. Intractable Rare Dis Res. 11:52–62. 2022. View Article : Google Scholar : PubMed/NCBI

140 

Kamal Y, Abdelwhab A, Salem ST and Fakhr M: Evaluation of the efficacy of supplementary probiotic capsules with topical clobetasol propionate 0.05% versus topical clobetasol propionate 0.05% in the treatment of oral lichen planus (a randomized clinical trial). BMC Oral Health. 25:3442025. View Article : Google Scholar : PubMed/NCBI

141 

Shanahan F, Ghosh TS and O'Toole PW: The healthy microbiome-what is the definition of a healthy gut microbiome? Gastroenterology. 160:483–494. 2021. View Article : Google Scholar

142 

Shalon D, Culver RN, Grembi JA, Folz J, Treit PV, Shi H, Rosenberger FA, Dethlefsen L, Meng X, Yaffe E, et al: Profiling the human intestinal environment under physiological conditions. Nature. 617:581–591. 2023. View Article : Google Scholar : PubMed/NCBI

143 

Schmidt TSB, Raes J and Bork P: The human gut microbiome: From association to modulation. Cell. 172:1198–1215. 2018. View Article : Google Scholar : PubMed/NCBI

144 

McCallum G and Tropini C: The gut microbiota and its biogeography. Nat Rev Microbiol. 22:105–118. 2024. View Article : Google Scholar

145 

Wang J and Jia H: Metagenome-wide association studies: fine-mining the microbiome. Nat Rev Microbiol. 14:508–522. 2016. View Article : Google Scholar : PubMed/NCBI

146 

Uitterlinden AG: An introduction to genome-wide association studies: GWAS for dummies. Semin Reprod Med. 34:196–204. 2016. View Article : Google Scholar : PubMed/NCBI

147 

Li L, Yang S, Li R, Su J, Zhou X, Zhu X and Gao R: Unraveling shared and unique genetic causal relationship between gut microbiota and four types of uterine-related diseases: Bidirectional mendelian inheritance approaches to dissect the 'gut-uterus axis'. Ann Epidemiol. 100:16–26. 2024. View Article : Google Scholar : PubMed/NCBI

148 

Asnicar F, Thomas AM, Passerini A, Waldron L and Segata N: Machine learning for microbiologists. Nat Rev Microbiol. 22:191–205. 2024. View Article : Google Scholar

149 

Ma J, Fang Y, Li S, Zeng L, Chen S, Li Z, Ji G, Yang X and Wu W: Interpretable machine learning algorithms reveal gut microbiome features associated with atopic dermatitis. Front Immunol. 16:15280462025. View Article : Google Scholar : PubMed/NCBI

150 

Al-Bakri AG, Akour AA and Al-Delaimy WK: Knowledge, attitudes, ethical and social perspectives towards fecal microbiota transplantation (FMT) among Jordanian healthcare providers. BMC Med Ethics. 22:192021. View Article : Google Scholar

151 

Benech N, Barbut F, Fitzpatrick F, Krutova M, Davies K, Druart C, Cordaillat-Simmons M, Heritage J, Guery B and Kuijper E; ESGCD and ESGHAMI: Update on microbiota-derived therapies for recurrent Clostridioides difficile infections. Clin Microbiol Infect. 30:462–468. 2024. View Article : Google Scholar

152 

Sada RM, Matsuo H, Motooka D, Kutsuna S, Hamaguchi S, Yamamoto G and Ueda A: Clostridium butyricum Bacteremia associated with probiotic use, Japan. Emerg Infect Dis. 30:665–671. 2024. View Article : Google Scholar : PubMed/NCBI

153 

Zawistowska-Rojek A and Tyski S: Are probiotics safe for humans? Pol J Microbiol. 67:251–258. 2018. View Article : Google Scholar

154 

Gouriet F, Million M, Henri M, Fournier PE and Raoult D: Lactobacillus rhamnosus bacteremia: An emerging clinical entity. Eur J Clin Microbiol Infect Dis. 31:2469–2480. 2021. View Article : Google Scholar

155 

Harty DW, Oakey HJ, Patrikakis M, Hume EB and Knox KW: Pathogenic potential of lactobacilli. Int J Food Microbiol. 24:179–189. 1994. View Article : Google Scholar : PubMed/NCBI

156 

Bartalesi F, Veloci S, Baragli F, Mantengoli E, Guidi S, Bartolesi AM, Mannino R, Pecile P and Bartoloni A: Successful tigecycline lock therapy in a Lactobacillus rhamnosus catheter-related bloodstream infection. Infection. 40:331–334. 2012. View Article : Google Scholar

157 

Jin DM, Morton JT and Bonneau R: Meta-analysis of the human gut microbiome uncovers shared and distinct microbial signatures between diseases. mSystems. 9:e00295242024. View Article : Google Scholar : PubMed/NCBI

158 

Camacho DM, Collins KM, Powers RK, Costello JC and Collins JJ: Next-generation machine learning for biological networks. Cell. 173:1581–1592. 2018. View Article : Google Scholar : PubMed/NCBI

159 

Su Q, Liu Q, Lau RI, Zhang J, Xu Z, Yeoh YK, Leung TWH, Tang W, Zhang L, Liang JQY, et al: Faecal microbiome-based machine learning for multi-class disease diagnosis. Nat Commun. 13:68182022. View Article : Google Scholar : PubMed/NCBI

160 

Chuang YF, Fan KC, Su YY, Wu MF, Chiu YL, Liu YC and Lin CC: Precision probiotics supplement strategy in an aging population based on gut microbiome composition. Brief Bioinform. 25:bbae3512024. View Article : Google Scholar

161 

Guimaraes JT, Balthazar CF, Scudino H, Pimentel TC, Esmerino EA, Ashokkumar M, Freitas MQ and Cruz AG: High-intensity ultrasound: A novel technology for the development of probiotic and prebiotic dairy products. Ultrason Sonochem. 57:12–21. 2019. View Article : Google Scholar : PubMed/NCBI

162 

Balthazar CF, Guimaraes JF, Coutinho NM, Pimentel TC, Ranadheera CS, Santillo A, Albenzio M, Cruz AG and Sant'Ana AS: The future of functional food: Emerging technologies application on prebiotics, probiotics, and postbiotics. Compr Rev Food Sci Food Saf. 21:2560–2586. 2022. View Article : Google Scholar : PubMed/NCBI

163 

Kucukgoz K and Trzaskowska M: Nondairy probiotic products: Functional foods that require more attention. Nutrients. 14:7532022. View Article : Google Scholar : PubMed/NCBI

164 

Shumye Gebre T, Admassu Emire S, Okomo Aloo S, Chelliah R, Vijayalakshmi S and Hwan Oh D: Unveiling the potential of African fermented cereal-based beverages: Probiotics, functional drinks, health benefits and bioactive components. Food Res Int. 191:1146562024. View Article : Google Scholar : PubMed/NCBI

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Spandidos Publications style
Zhao Y, Yu C, Zhang J, Yao Q, Zhu X and Zhou X: The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review). Int J Mol Med 56: 210, 2025.
APA
Zhao, Y., Yu, C., Zhang, J., Yao, Q., Zhu, X., & Zhou, X. (2025). The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review). International Journal of Molecular Medicine, 56, 210. https://doi.org/10.3892/ijmm.2025.5651
MLA
Zhao, Y., Yu, C., Zhang, J., Yao, Q., Zhu, X., Zhou, X."The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review)". International Journal of Molecular Medicine 56.6 (2025): 210.
Chicago
Zhao, Y., Yu, C., Zhang, J., Yao, Q., Zhu, X., Zhou, X."The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review)". International Journal of Molecular Medicine 56, no. 6 (2025): 210. https://doi.org/10.3892/ijmm.2025.5651
Copy and paste a formatted citation
x
Spandidos Publications style
Zhao Y, Yu C, Zhang J, Yao Q, Zhu X and Zhou X: The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review). Int J Mol Med 56: 210, 2025.
APA
Zhao, Y., Yu, C., Zhang, J., Yao, Q., Zhu, X., & Zhou, X. (2025). The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review). International Journal of Molecular Medicine, 56, 210. https://doi.org/10.3892/ijmm.2025.5651
MLA
Zhao, Y., Yu, C., Zhang, J., Yao, Q., Zhu, X., Zhou, X."The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review)". International Journal of Molecular Medicine 56.6 (2025): 210.
Chicago
Zhao, Y., Yu, C., Zhang, J., Yao, Q., Zhu, X., Zhou, X."The gut‑skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation (Review)". International Journal of Molecular Medicine 56, no. 6 (2025): 210. https://doi.org/10.3892/ijmm.2025.5651
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