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Review Open Access

Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review)

  • Authors:
    • Sen Lu
    • Yunfei Liu
    • Xiaohua Li
    • Qipeng Yao
  • View Affiliations / Copyright

    Affiliations: Department of Critical Care Medicine, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China, Department of Anesthesiology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China, Department of Thoracic Surgery, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Sichuan Clinical Research Center for Kidney Diseases, Chengdu, Sichuan 610072, P.R. China, Department of Chinese Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
    Copyright: © Lu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 112
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    Published online on: March 3, 2026
       https://doi.org/10.3892/ijmm.2026.5783
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Abstract

Pulmonary fibrosis (PF) is a progressive and fatal interstitial lung disease characterized by irreversible lung scarring and frequently associated with lung cancer. Currently, there remains a lack of effective therapies capable of significantly improving long‑term outcomes or reversing the disease course. Although antifibrotic drugs are widely used and have enhanced the mechanistic understanding of PF, their efficacy is limited. This review systematically explores the core pathobiological processes and epigenetic regulatory networks involved in PF pathogenesis. Simultaneously, a critical review of the most promising emerging therapeutic strategies in recent years, including stem cell therapy, novel targeted agents, nucleic acid delivery technologies and epigenetic interventions, is provided. An in‑depth analysis of the transformative role of artificial intelligence (AI) in integrating multi‑omics data, predicting disease trajectories and optimizing personalized treatment plans is also presented. However, significant challenges hinder the clinical translation of these novel approaches. While AI‑based models offer valuable insights, they are constrained by the complex heterogeneity of PF. Epigenetic therapies, despite their promise, face obstacles related to drug development, delivery efficiency and long‑term clinical impact. Moving forward, the fundamental shift from palliative management to a disease‑modifying paradigm for PF will not rely on a single technological breakthrough. Instead, it necessitates deep interdisciplinary integration. This involves the systematic convergence of the potential of regenerative medicine, the precision of gene editing, the molecular intervention of targeted therapy and the dynamic decision‑making capabilities driven by AI. The goal is to construct a next‑generation, individualized treatment framework capable of adapting to disease heterogeneity and evolving with the patient's condition. Despite the considerable challenges, this multimodal integrated strategy is paving a viable new path toward ultimately conquering pulmonary fibrosis.
View Figures

Figure 1

Overview of pathogenesis and
pathophysiological progression in pulmonary fibrosis. The schematic
illustrates the multi-layered interactions-including genetic
predisposition, environmental exposures, age-related decline and
immune dysregulation - that collectively drive disease initiation.
The interplay of these factors triggers a sequential pathogenic
cascade beginning with alveolar epithelial cell injury, followed by
dysregulated inflammation and immune activation, leading to
fibroblast recruitment and myofibroblast differentiation and
culminating in excessive extracellular matrix deposition and tissue
remodeling. ROS, reactive oxygen species; 1-NP, 1-nitropyrene; BaP,
benzo[a]pyrene; MUC5B, mucin 5B, oligomeric mucus/gel-forming;
TERT, telomerase reverse transcriptase; TERC, telomerase RNA
component; rs35705950, a single nucleotide polymorphism in the
MUC5B promoter region; TOLLIP, toll interacting protein.

Figure 2

PF treatment strategy. Various
modalities to treat PF (including stem cell therapy, nucleic acid
delivery, epigenetic therapy, targeted drug therapy, gene editing).
PF, pulmonary fibrosis.
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Copy and paste a formatted citation
Spandidos Publications style
Lu S, Liu Y, Li X and Yao Q: Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review). Int J Mol Med 57: 112, 2026.
APA
Lu, S., Liu, Y., Li, X., & Yao, Q. (2026). Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review). International Journal of Molecular Medicine, 57, 112. https://doi.org/10.3892/ijmm.2026.5783
MLA
Lu, S., Liu, Y., Li, X., Yao, Q."Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review)". International Journal of Molecular Medicine 57.5 (2026): 112.
Chicago
Lu, S., Liu, Y., Li, X., Yao, Q."Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review)". International Journal of Molecular Medicine 57, no. 5 (2026): 112. https://doi.org/10.3892/ijmm.2026.5783
Copy and paste a formatted citation
x
Spandidos Publications style
Lu S, Liu Y, Li X and Yao Q: Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review). Int J Mol Med 57: 112, 2026.
APA
Lu, S., Liu, Y., Li, X., & Yao, Q. (2026). Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review). International Journal of Molecular Medicine, 57, 112. https://doi.org/10.3892/ijmm.2026.5783
MLA
Lu, S., Liu, Y., Li, X., Yao, Q."Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review)". International Journal of Molecular Medicine 57.5 (2026): 112.
Chicago
Lu, S., Liu, Y., Li, X., Yao, Q."Treatment of pulmonary fibrosis: From disease mechanisms to future novel therapies (Review)". International Journal of Molecular Medicine 57, no. 5 (2026): 112. https://doi.org/10.3892/ijmm.2026.5783
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