Integrated microRNA‑mRNA analyses of distinct expression profiles in follicular thyroid tumors
- Authors:
- Published online on: October 6, 2017 https://doi.org/10.3892/ol.2017.7146
- Pages: 7153-7160
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Copyright: © Chi et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
Abstract
Introduction
Thyroid follicular cells are found in the thyroid gland, specifically in the epithelial monolayer. In total, >95% of thyroid tumors are derived from these follicular cells (1). In 2016, the incidence of thyroid tumors rose globally, largely due to technological and diagnostic advances (2). However, it remains difficult to distinguish whether a thyroid nodule is benign or malignant. Follicular thyroid tumors may be divided into malignant follicular thyroid carcinoma (FTC) and benign follicular thyroid adenoma (FA). Only 5–10% of thyroid nodules are malignant (3). Patients with follicular tumors usually must undergo thyroid lobectomy for diagnosis, which is often an unnecessary surgery, as the disease is usually benign. Fine-needle aspiration cytology is considered the most accurate method for the diagnosis of FTC and FA (4).
Previously, microRNAs (miRNAs/miRs) have been demonstrated to be involved in the pathogenesis of various diseases, like cancer, diabetes and osteoarthritis (5–7). miRNAs are small (18–25 nucleotides) non-coding, single-stranded RNA molecules that bind to targets in a base pair-mediated manner, resulting in the degradation or inhibition of the expression and function of protein-coding mRNAs. miRNAs often bind to the 3′-untranslated region (3′UTR) of target genes (8), although they are usually only partially complementary to the target (9). miRNAs regulate ~30% of the human genes associated with proliferation, apoptosis, metastasis, cell immunity and differentiation (10). Each miRNA is able to regulate several hundred mRNAs, and each mRNA may be the target of several miRNAs. Therefore, a regulatory control network exists between miRNAs and mRNAs (11). Furthermore, miRNAs have been associated with several types of tumors, including non-small cell lung cancer, colon and esophageal cancer, and FTC (12–14). However, there are few studies of specific miRNA and mRNA analyses of follicular thyroid tumors.
Several microarray studies have already described the differentially expressed genes (DEGs) between malignant and benign thyroid nodules. However, these studies have several restrictions, including the fact that the samples are limited, they contain significant false-negatives, and they require external analysis at an offsite company laboratory (15–17). Certain studies have aimed to reveal the potential miRNAs associated with follicular thyroid tumors (18).
In the present study, an integrated analysis of differentially expressed miRNAs (DEMs) and DEGs between FTC and FA was performed. A Gene Ontology (GO) analysis of the DEGs was performed. A total of 36 miRNA-gene pairs were identified between the DEGs and the target genes of the DEMs. A miRNA-mRNA network analysis was then performed to additionally investigate the pathogenesis of FTC.
Materials and methods
Analysis of mRNA and miRNA profiling datasets
Expression profile datasets containing mRNA and miRNA were acquired from the Gene Expression Omnibus (GEO; http://www.ncbi.nlm.nih.gov/geo/). The expression profiling data of GSE29315 (Tomas et al, unpublished) are mRNA profiling data, originally obtained from a cohort of 9 FTC and 17 FA samples. The GSE62054 dataset contains miRNA profiling data, which was originally obtained from 17 FTC and 8 FA samples (19). Additionally, GSE29315 was hybridized on the Affymetrix U95 GeneChip platform (Affymetrix; ThermoFisher Scientific, Inc., Waltham, MA, USA) and GSE62054 was performed on the Illumina Human v2 miRNA expression BeadChip (Illumina, Inc., San Diego, CA, USA).
Preprocessing of profiling data
GSE29315 and GSE62054 data were first preprocessed by the Affy package in R language version 3.4.0 and then were processed by log2 transformation, background correction and data normalization using the Robust Multi-array Average algorithm (20).
Identification of DEMs, DEGs and GO enrichment analysis
Identification of DEMs and DEGs were conducted by the Limma package version 3.32.5 in R software (21). The threshold values for different expression were log2 (fold-change)>0.5 or log2 (fold-change)<-0.5 with P<0.05 (22). GO enrichment analysis for DEGs was performed with the Database for Annotation, Visualization and Integrated Discovery (DAVID) (23).
Overlapping genes of DEGs and the predicted target genes of the DEMs
The predicted target mRNAs of the DEMs were generated using the miRWalk (24), miRecords (25) and TarMir databases (26). The overlapping DEGs and the predicted target mRNAs of the DEMs were identified for additional network analysis.
Construction and analysis of miRNA-mRNA regulatory network
To obtain an improved understanding of the biological function of the miRNA-mRNA regulatory network, node-degree analysis was performed, based on the overlapping genes and their upstream miRNAs. The network was visualized using the Cytoscape platform software version 3.0.1 (27).
Results
Identifying DEMs and DEGs between FTC and FA
GSE29315 and GSE62054 were downloaded from GEO and then normalized, and corrected by the quantile normalization method and hierarchical clustering analysis using R software. DEMs and DEGs were identified between the FTC and FA. A total of 86 DEGs and 32 DEMs were obtained when the threshold values were set at P<0.05 and log2(fold-change)>0.5 or log2 (fold-change)<-0.5. The top 5 downregulated DEMs were miR-7, miR-1179, miR-7-2, miR-486-5p and miR-130b. The top 5 upregulated DEMs were miR-663b, miR-137, miR-30c-1, miR-767-5p and miR-603 (Table I). As for the DEGs, the top 5 downregulated genes were fatty acid binding protein 4 (FABP4), cytidine monophospho-N-acetylneruaminic acid (CMAHP), integral membrane protein 2A (ITM2A), carbonic anhydrase 4 (CA4) and family with sequence similarity 189 member A2 (FAM189A2), and the top 5 upregulated genes were erythrocyte membrane protein band 4.1 like 3 (EPB41L3), secretogranin V (SCG5), paired box 1 (PAX1), methylenetetrahydrofolate dehydrogenase (NADP + dependent) 2, methenyltetrahydrofolate cyclohydrolase (MTHFD2) and cadherin 2 (CDH2) (Table II). A volcano plot was constructed to identify the DEGs (Fig. 1).
Table I.Top 5 differentially expressed miRNAs of malignant follicular thyroid carcinoma compared with benign follicular thyroid adenoma. |
Table II.Top 5 differentially expressed mRNAs of malignant follicular thyroid carcinoma compared with benign follicular thyroid adenoma. |
GO enrichment analysis of DEGs
GO analysis of all the DEGs (Table III) identified 8 associated biological processes: Positive regulation of macromolecule metabolic process, regulation of cell motion, cell proliferation, tube development, regulation of response to external stimulus, regulation of locomotion, response to drug and T cell activation (Fig. 2).
Table III.Differentially expressed mRNAs of malignant follicular thyroid carcinoma compared with benign follicular thyroid adenoma. |
Integrated network analysis of miRNA-mRNA interaction
From the miRWalk, miRecords and TarMir databases, target genes of the DEMs were identified. A total of 24 overlapping genes were identified between the targets genes and DEGs (Table IV). Furthermore, 36 miRNA-gene pairs were obtained among the 24 overlapping genes and 9 DEMs (Table V). Node-degree analysis is summarized in Table VI. The regulation network between those overlapping genes and their upstream miRNAs is presented in Fig. 3.
Discussion
The important roles of miRNAs in the pathogenesis of FTC have been identified previously (28). miRNAs exhibit different expression patterns within different tumor types, and are closely associated with the diagnosis, treatment and prognosis of tumors (29–31). Ak et al (21) observed that DEMs and differentially expressed mRNAs vary between benign and malignant tumors, which may suggest the different roles of these miRNAs and mRNAs. miR-197 and miR-346 have been indicated to be overexpressed in FTC, resulting in the dysregulation of their target genes (32). However, studies regarding DEMs and DEGs in FTC are rare. In the present study, the difference between miRNA-mRNA regulatory networks from FTC and FA samples were compared in order to investigate the mechanism of FTC. It was identified that miR-7, miR-1179, miR-7-2, miR-486-5p and miR-130b were the top downregulated miRNAs, and that miR-663b, miR-137, miR-30c-1, miR-767-5p and miR-603 were the top upregulated miRNAs. For the DEGs, the top downregulated genes were FABP4, CMAHP, ITM2A, CA4 and FAM189A2, and the top upregulated genes were EPB41L3, SCG5, PAX1, MTHFD2 and CDH2. In addition, miR-7, miR-296-5p, miR-10a, miR-144, miR-139-5p, miR-452 and miR-145 were downregulated, and miR-137 and miR-493 were upregulated in the FTC miRNA-mRNA regulatory network compared with those in FA. The gene arrays identified DEGs, in which leucine rich repeat neuronal 3, chromodomain helicase DNA binding protein 9, PKIA, zinc finger protein 148 (ZNF148), TGFB induced factor homeobox 1, transforming growth factor β receptor 2, gap junction protein α1 and CDH2 were observed to be target genes inversely correlated with miR-7, miR-144, miR-139-5p, miR-145 and miR-137. In other studies, FTC or FA have been compared with normal tissue, and differences in miRNA expression were observed to occur in the range between 1.2- and 2-fold, which was similar to the data of the present study (33–35).
In the present study, it was identified that miR-7, miR-296-5p, miR-10a, miR-144, miR-139-5p, miR-452, miR-145, miR-137 and miR-493 are important miRNAs that are differentially expressed between carcinoma and adenoma samples. Certain studies have suggested that miR-7 is not only a tumor promoter, but also a tumor suppressor. As a tumor suppressor, miR-7 is downregulated in tumors, such as thyroid cancer, breast cancer and castration-resistant prostate cancer, leading to a derepression of the oncogenes epidermal growth factor receptor, insulin receptor substrate 1, Raf-1 proto-oncogene, serine/threonine kinase, tyrosine kinase non-receptor 2, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit δ, mechanistic target of rapamycin kinase, Ribosomal protein S6 kinase β-1 and phosphatidylinositol-4,5-bisphosphate 3-kinase (36–38). miR-296-5p has been revealed to be significantly inversely correlated with post-contrast T1 values for diffuse myocardial fibrosis in patients with hypertrophic cardiomyopathy, and is a downstream effector under conditions that promote glioblastoma stem cell stemness, and inhibit glioblastoma cell stemness and their capacity to self-renew as spheres and propagate glioma xenografts in vivo (39,40). miR-10a has been identified as a downregulated miRNA associated with human metastatic medullary thyroid carcinoma, and it may be important for tumor development and/or reflect C-cell lineage (41,42). miR-144 may suppress the invasion and migration capability of thyroid cancer and suppress the expression of zinc finger E-box-binding homeobox (ZEB)1 and ZEB2, the two E-cadherin suppressors, by directly binding their 3′UTRs (43). miR-137 was indicated to participate in hematopoiesis, particularly in the efficacy of warfarin, wherein miR-137 may cause aberrant vitamin K epoxide reductase complex subunit 1 expression (44). miR-139-5p is an oncogenic molecule in the process of tumorigenesis, and has been demonstrated to be a sensitive and specific biomarker for the diagnosis of thyroid tumors and others tumor types (45). Furthermore, it may be of use as a tractable therapeutic target to decrease the mortality rate and increase the survival rate (46). miR-145 has primarily been indicated as being downregulated in colorectal tumors. Previously, certain studies have identified that miR-145 is highly expressed in mesenchymal cells such as fibroblasts and smooth muscle cells (47). The miRNA was demonstrated to directly regulate the expression of thyroid hormone receptor TRβ1 in renal cancer cells and to correlate with intracellular triiodothyronine concentrations in renal tumors (48). miR-493 also promoted the invasion and chemoresistance of gastric cancer cells. However, dickkopf related-protein 1 overexpression reversed its effects on proliferation, invasion and chemo-sensitivity (49). Based on these data, we hypothesize that these miRNAs serve important roles in FTC with different pathways.
In the present study, several genes that were overlapping were identified between the DEGs and the target genes of the DEMs. These may be upregulated or downregulated. However, they all contributed to the development of FTC. Certain functions of these genes in cancer have been studied. For example, ZNF148 is a member of the human zinc finger Krüppel family and it maps to regions implicated in recurrent chromosomal rearrangements in hematological malignancies (50). The present study identified spalt-like transcription factor 1 (SALL1), which is one of the four human family members of the Spalt family. Members of the Spalt family are highly conserved zinc-finger transcription factors that are conserved from Caenorhabditis elegans to vertebrates, with regulatory functions in organogenesis, limb formation and cell fate assignment during neural development. SALL1 expression has been identified to correlate with the expression of CDH1, which is consistent with its tumor suppressive function and suggests its potential involvement in epithelial-to-mesenchymal transition (51,52). Cell division cycle 27 (CDC27) is a core component of the anaphase-promoting complex and is involved in the regulation of mitotic checkpoints to ensure chromosomal integrity (53). CDC27 may significantly affect the function of the polymeric protein complex and is also a target of certain anticancer drugs (54,55). Nuclear receptor subfamily 2 group F member 2 (NR2F2), also known as chicken ovalbumin upstream promoter transcription factor, is highly prioritized as a candidate gene associated with hypertension (56). Certain studies have demonstrated that NR2F2 is nuclear receptor transcription factor vital for angiogenesis and heart development (57). These data suggest that several genes have functions in numerous pathways involved in tumorigenesis and progression.
Each miRNA is able to regulate several hundred mRNAs. In addition, each mRNA may be targeted by several miRNAs and each mRNA participates in several biological functions in the human body. Therefore, each miRNA may affect different biological processes and pathways through a miRNA-mRNA network (58,59). It is important to understand the pathogenesis and treatment of tumors by investigating the specific miRNA-mRNA co-regulation effects. In the present study, mRNAs and their functions were described with GO enrichment analysis. There were 86 mRNAs and 8 biological functions involved. In total, ~80% of follicular carcinomas contain Ras gene mutations or a paired box gene 8/peroxisome proliferator-activated receptor γ gene rearrangement, which leads to uncontrolled proliferation. Mutations in the phosphatase and tensin homologue suppressor gene and the phosphatidylinositol 3-kinase pathway may be an important factor in the development of more aggressive thyroid cancer types and may be more common in follicular cancer, which is responsible for cell motility, locomotion and response to external stimulus (60–62). Other factors that have been implicated in the pathogenesis of FTC include gene mutations in p53, c-myc, c-fos and the thyrotropin receptor (63–66). These molecules serve functions in cell proliferation, apoptosis, cytoskeleton rearrangement and responses to drugs. Additionally, FTC, but not adenoma, recruits tumor-associated macrophages by releasing Chemokine (C-C motif) ligand 5; therefore, an abnormal immune response, including T cell activation, may be involved in follicular cancer. Other GO terms may be validated in future studies (3,67).
In conclusion, the present study identified 86 DEGs and 32 DEMs between FTC and FA. A total of 24 overlapping genes were identified between the DEGs and the target genes of the DEMs. Network analysis indicated a co-regulatory association between miR-296-5p, miR-10a, miR-139-5p, miR-452, miR-493, miR-7, miR-137, miR-144, miR-145 and corresponding targeted mRNAs in FTC. However, the present study has limitations, such as the small sample size, although attention was paid to ensure the use of two genetically homogenous populations to avoid population stratification. The mechanism of the miRNA-mRNA network and the roles of these genes in FTC require additional study and validation in vitro and in vivo.
References
Kondo T, Ezzat S and Asa SL: Pathogenetic mechanisms in thyroid follicular-cell neoplasia. Nat Rev Cancer. 6:292–306. 2006. View Article : Google Scholar : PubMed/NCBI | |
Enewold L, Zhu K, Ron E, Marrogi AJ, Stojadinovic A, Peoples GE and Devesa SS: Rising thyroid cancer incidence in the United States by demographic and tumor characteristics, 1980–2005. Cancer Epidemiol Biomarkers Prev. 18:784–791. 2009. View Article : Google Scholar : PubMed/NCBI | |
McHenry CR and Phitayakorn R: Follicular adenoma and carcinoma of the thyroid gland. Oncologist. 16:585–593. 2011. View Article : Google Scholar : PubMed/NCBI | |
Francis GL, Waguespack SG, Bauer AJ, Angelos P, Benvenga S, Cerutti JM, Dinauer CA, Hamilton J, Hay ID, Luster M, et al: Management guidelines for children with thyroid nodules and differentiated thyroid cancer. Thyroid. 25:716–759. 2015. View Article : Google Scholar : PubMed/NCBI | |
Macfarlane LA and Murphy PR: MicroRNA: Biogenesis, function and role in cancer. Curr Genomics. 11:537–561. 2010. View Article : Google Scholar : PubMed/NCBI | |
Yu C, Chen WP and Wang XH: MicroRNA in osteoarthritis. J Int Med Res. 39:1–9. 2011. View Article : Google Scholar : PubMed/NCBI | |
Wang C, Wan S, Yang T, Niu D, Zhang A, Yang C, Cai J, Wu J, Song J, Zhang CY, et al: Increased serum microRNAs are closely associated with the presence of microvascular complications in type 2 diabetes mellitus. Sci Rep. 6:200322016. View Article : Google Scholar : PubMed/NCBI | |
Ambros V: The functions of animal microRNAs. Nature. 431:350–355. 2004. View Article : Google Scholar : PubMed/NCBI | |
Bartel DP: MicroRNAs: Genomics, biogenesis, mechanism, and function. Cell. 116:281–297. 2004. View Article : Google Scholar : PubMed/NCBI | |
Croce CM and Calin GA: miRNAs, cancer, and stem cell division. Cell. 122:6–7. 2005. View Article : Google Scholar : PubMed/NCBI | |
Chiang HR, Schoenfeld LW, Ruby JG, Auyeung VC, Spies N, Baek D, Johnston WK, Russ C, Luo S, Babiarz JE, et al: Mammalian microRNAs: Experimental evaluation of novel and previously annotated genes. Genes Dev. 24:992–1009. 2010. View Article : Google Scholar : PubMed/NCBI | |
Lu J, Getz G, Miska EA, Alvarez-Saavedra E, Lamb J, Peck D, Sweet-Cordero A, Ebert BL, Mak RH, Ferrando AA, et al: MicroRNA expression profiles classify human cancers. Nature. 435:834–838. 2005. View Article : Google Scholar : PubMed/NCBI | |
Hu Z, Chen X, Zhao Y, Tian T, Jin G, Shu Y, Chen Y, Xu L, Zen K, Zhang C and Shen H: Serum microRNA signatures identified in a genome-wide serum microRNA expression profiling predict survival of non-small-cell lung cancer. J Clin Oncol. 28:1721–1726. 2010. View Article : Google Scholar : PubMed/NCBI | |
Ji J, Shi J, Budhu A, Yu Z, Forgues M, Roessler S, Ambs S, Chen Y, Meltzer PS, Croce CM, et al: MicroRNA expression, survival, and response to interferon in liver cancer. N Engl J Med. 361:1437–1447. 2009. View Article : Google Scholar : PubMed/NCBI | |
Finley DJ, Zhu B, Barden CB and Fahey TJ III: Discrimination of benign and malignant thyroid nodules by molecular profiling. Ann Surg. 240:425–437. 2004. View Article : Google Scholar : PubMed/NCBI | |
Barden CB, Shister KW, Zhu B, Guiter G, Greenblatt DY, Zeiger MA and Fahey TJ III: Classification of follicular thyroid tumors by molecular signature: Results of gene profiling. Clin Cancer Res. 9:1792–1800. 2003.PubMed/NCBI | |
Aldred MA, Huang Y, Liyanarachchi S, Pellegata NS, Gimm O, Jhiang S, Davuluri RV, de la Chapelle A and Eng C: Papillary and follicular thyroid carcinomas show distinctly different microarray expression profiles and can be distinguished by a minimum of five genes. J Clin Oncol. 22:3531–3539. 2004. View Article : Google Scholar : PubMed/NCBI | |
de la Chapelle A and Jazdzewski K: MicroRNAs in thyroid cancer. J Clin Endocrinol Metab. 96:3326–3336. 2011. View Article : Google Scholar : PubMed/NCBI | |
Stokowy T, Wojtaś B, Krajewska J, Stobiecka E, Dralle H, Musholt T, Hauptmann S, Lange D, Hegedüs L, Jarząb B, et al: A two miRNA classifier differentiates follicular thyroid carcinomas from follicular thyroid adenomas. Mol Cell Endocrinol. 399:43–49. 2015. View Article : Google Scholar : PubMed/NCBI | |
Irizarry RA, Hobbs B, Collin F, Beazer-Barclay YD, Antonellis KJ, Scherf U and Speed TP: Exploration, normalization, and summaries of high density oligonucleotide array probe level data. Biostatistics. 4:249–264. 2003. View Article : Google Scholar : PubMed/NCBI | |
Ak G, Tomaszek SC, Kosari F, Metintas M, Jett JR, Metintas S, Yildirim H, Dundar E, Dong J, Aubry MC, Wigle DA and Thomas CF Jr: MicroRNA and mRNA features of malignant pleural mesothelioma and benign asbestos-related pleural effusion. Biomed Res Int. 635748:2015. | |
Liu MY, Zhang H, Hu YJ, Chen YW and Zhao XN: Identification of key genes associated with cervical cancer by comprehensive analysis of transcriptome microarray and methylation microarray. Oncol Lett. 12:473–478. 2016.PubMed/NCBI | |
Huang da W, Sherman BT and Lempicki RA: Systematic and integrative analysis of large gene lists using DAVID bioinformatics resources. Nat Protoc. 4:44–57. 2009. View Article : Google Scholar : PubMed/NCBI | |
Dweep H, Sticht C, Pandey P and Gretz N: miRWalk-database: Prediction of possible miRNA binding sites by ‘walking’ the genes of three genomes. J Biomed Inform. 44:839–847. 2011. View Article : Google Scholar : PubMed/NCBI | |
Xiao F, Zuo Z, Cai G, Kang S, Gao X and Li T: miRecords: An integrated resource for microRNA-target interactions. Nucleic Acids Res. 37:(Database issue). D105–D110. 2009. View Article : Google Scholar : PubMed/NCBI | |
Liu PF, Jiang WH, Han YT, He LF, Zhang HL and Ren H: Integrated microRNA-mRNA analysis of pancreatic ductal adenocarcinoma. Genet Mol Res. 14:10288–10297. 2015. View Article : Google Scholar : PubMed/NCBI | |
Yeung N, Cline MS, Kuchinsky A, Smoot ME and Bader GD: Exploring biological networks with Cytoscape software. Curr Protoc Bioinformatics Chapter. 8:Unit 8.13. 2008. View Article : Google Scholar | |
Stokowy T, Wojtas B, Jarzab B, Krohn K, Fredman D, Dralle H, Musholt T, Hauptmann S, Lange D, Hegedüs L, et al: Two-miRNA classifiers differentiate mutation-negative follicular thyroid carcinomas and follicular thyroid adenomas in fine needle aspirations with high specificity. Endocrine. 54:440–447. 2016. View Article : Google Scholar : PubMed/NCBI | |
Cerutti JM, Delcelo R, Amadei MJ, Nakabashi C, Maciel RM, Peterson B, Shoemaker J and Riggins GJ: A preoperative diagnostic test that distinguishes benign from malignant thyroid carcinoma based on gene expression. J Clin Invest. 113:1234–1242. 2004. View Article : Google Scholar : PubMed/NCBI | |
Umbricht CB, Conrad GT, Clark DP, Westra WH, Smith DC, Zahurak M, Saji M, Smallridge RC, Goodman S and Zeiger MA: Human telomerase reverse transcriptase gene expression and the surgical management of suspicious thyroid tumors. Clin Cancer Res. 10:5762–5768. 2004. View Article : Google Scholar : PubMed/NCBI | |
Weber F, Shen L, Aldred MA, Morrison CD, Frilling A, Saji M, Schuppert F, Broelsch CE, Ringel MD and Eng C: Genetic classification of benign and malignant thyroid follicular neoplasia based on a three-gene combination. J Clin Endocrinol Metab. 90:2512–2521. 2005. View Article : Google Scholar : PubMed/NCBI | |
Weber F, Teresi RE, Broelsch CE, Frilling A and Eng C: A limited set of human MicroRNA is deregulated in follicular thyroid carcinoma. J Clin Endocrinol Metab. 91:3584–3591. 2006. View Article : Google Scholar : PubMed/NCBI | |
Iorio MV, Ferracin M, Liu CG, Veronese A, Spizzo R, Sabbioni S, Magri E, Pedriali M, Fabbri M, Campiglio M, et al: MicroRNA gene expression deregulation in human breast cancer. Cancer Res. 65:7065–7070. 2005. View Article : Google Scholar : PubMed/NCBI | |
Murakami Y, Yasuda T, Saigo K, Urashima T, Toyoda H, Okanoue T and Shimotohno K: Comprehensive analysis of microRNA expression patterns in hepatocellular carcinoma and non-tumorous tissues. Oncogene. 25:2537–2545. 2006. View Article : Google Scholar : PubMed/NCBI | |
He H, Jazdzewski K, Li W, Liyanarachchi S, Nagy R, Volinia S, Calin GA, Liu CG, Franssila K, Suster S, et al: The role of microRNA genes in papillary thyroid carcinoma. Proc Natl Acad Sci USA. 102:pp. 19075–19080. 2005, View Article : Google Scholar : PubMed/NCBI | |
Fang Y, Xue JL, Shen Q, Chen J and Tian L: MicroRNA-7 inhibits tumor growth and metastasis by targeting the phosphoinositide 3-kinase/Akt pathway in hepatocellular carcinoma. Hepatology. 55:1852–1862. 2012. View Article : Google Scholar : PubMed/NCBI | |
Jiang L, Liu X, Chen Z, Jin Y, Heidbreder CE, Kolokythas A, Wang A, Dai Y and Zhou X: MicroRNA-7 targets IGF1R (insulin-like growth factor 1 receptor) in tongue squamous cell carcinoma cells. Biochem J. 432:199–205. 2010. View Article : Google Scholar : PubMed/NCBI | |
Reddy SD, Ohshiro K, Rayala SK and Kumar R: MicroRNA-7, a homeobox D10 target, inhibits p21-activated kinase 1 and regulates its functions. Cancer Res. 68:8195–8200. 2008. View Article : Google Scholar : PubMed/NCBI | |
Fang L, Ellims AH, Moore XL, White DA, Taylor AJ, Chin-Dusting J and Dart AM: Circulating microRNAs as biomarkers for diffuse myocardial fibrosis in patients with hypertrophic cardiomyopathy. J Transl Med. 13:3142015. View Article : Google Scholar : PubMed/NCBI | |
Lopez-Bertoni H, Lal B, Michelson N, Guerrero-Cázares H, Quiñones-Hinojosa A, Li Y and Laterra J: Epigenetic modulation of a miR-296-5p:HMGA1 axis regulates Sox2 expression and glioblastoma stem cells. Oncogene. 35:4903–4913. 2016. View Article : Google Scholar : PubMed/NCBI | |
Santarpia L, Calin GA, Adam L, Ye L, Fusco A, Giunti S, Thaller C, Paladini L, Zhang X, Jimenez C, et al: A miRNA signature associated with human metastatic medullary thyroid carcinoma. Endocr Relat Cancer. 20:809–823. 2013. View Article : Google Scholar : PubMed/NCBI | |
Hudson J, Duncavage E, Tamburrino A, Salerno P, Xi L, Raffeld M, Moley J and Chernock RD: Overexpression of miR-10a and miR-375 and downregulation of YAP1 in medullary thyroid carcinoma. Exp Mol Pathol. 95:62–67. 2013. View Article : Google Scholar : PubMed/NCBI | |
Guan H, Liang W, Xie Z, Li H, Liu J, Liu L, Xiu L and Li Y: Down-regulation of miR-144 promotes thyroid cancer cell invasion by targeting ZEB1 and ZEB2. Endocrine. 48:566–574. 2015. View Article : Google Scholar : PubMed/NCBI | |
Shomron N: MicroRNAs and pharmacogenomics. Pharmacogenomics. 11:629–632. 2010. View Article : Google Scholar : PubMed/NCBI | |
Xia T, Liao Q, Jiang X, Shao Y, Xiao B, Xi Y and Guo J: Long noncoding RNA associated-competing endogenous RNAs in gastric cancer. Sci Rep. 4:60882014. View Article : Google Scholar : PubMed/NCBI | |
Zhang HD, Jiang LH, Sun DW, Li J and Tang JH: MiR-139-5p: Promising biomarker for cancer. Tumour Biol. 36:1355–1365. 2015. View Article : Google Scholar : PubMed/NCBI | |
Kent OA, McCall MN, Cornish TC and Halushka MK: Lessons from miR-143/145: The importance of cell-type localization of miRNAs. Nucleic Acids Res. 42:7528–7538. 2014. View Article : Google Scholar : PubMed/NCBI | |
Kobayashi K, Imazu Y, Kawabata M and Shohmori T: Effect of long-term storage on monoamine metabolite levels in human cerebrospinal fluid. Acta Med Okayama. 41:179–181. 1987.PubMed/NCBI | |
Jia X, Li N, Peng C, Deng Y, Wang J, Deng M, Lu M, Yin J, Zheng G, Liu H and He Z: miR-493 mediated DKK1 down-regulation confers proliferation, invasion and chemo-resistance in gastric cancer cells. Oncotarget. 7:7044–7054. 2016. View Article : Google Scholar : PubMed/NCBI | |
Tommerup N and Vissing H: Isolation and fine mapping of 16 novel human zinc finger-encoding cDNAs identify putative candidate genes for developmental and malignant disorders. Genomics. 27:259–264. 1995. View Article : Google Scholar : PubMed/NCBI | |
de Celis JF and Barrio R: Regulation and function of Spalt proteins during animal development. Int J Dev Biol. 53:1385–1398. 2009. View Article : Google Scholar : PubMed/NCBI | |
May CD, Sphyris N, Evans KW, Werden SJ, Guo W and Mani SA: Epithelial-mesenchymal transition and cancer stem cells: A dangerously dynamic duo in breast cancer progression. Breast Cancer Res. 13:2022011. View Article : Google Scholar : PubMed/NCBI | |
Link LA, Howley BV, Hussey GS and Howe PH: PCBP1/HNRNP E1 protects chromosomal integrity by translational regulation of CDC27. Mol Cancer Res. 14:634–646. 2016. View Article : Google Scholar : PubMed/NCBI | |
Thornton BR, Ng TM, Matyskiela ME, Carroll CW, Morgan DO and Toczyski DP: An architectural map of the anaphase-promoting complex. Genes Dev. 20:449–460. 2006. View Article : Google Scholar : PubMed/NCBI | |
Lee SJ and Langhans SA: Anaphase-promoting complex/cyclosome protein Cdc27 is a target for curcumin-induced cell cycle arrest and apoptosis. BMC Cancer. 12:442012. View Article : Google Scholar : PubMed/NCBI | |
Browning BL and Browning SR: Haplotypic analysis of wellcome trust case control consortium data. Hum Genet. 123:273–280. 2008. View Article : Google Scholar : PubMed/NCBI | |
Huggins GS, Bacani CJ, Boltax J, Aikawa R and Leiden JM: Friend of GATA 2 physically interacts with chicken ovalbumin upstream promoter-TF2 (COUP-TF2) and COUP-TF3 and represses COUP-TF2-dependent activation of the atrial natriuretic factor promoter. J Biol Chem. 276:28029–28036. 2001. View Article : Google Scholar : PubMed/NCBI | |
Song HM, Luo Y, Li DF, Wei CK, Hua KY, Song JL, Xu H, Maskey N and Fang L: MicroRNA-96 plays an oncogenic role by targeting FOXO1 and regulating AKT/FOXO1/Bim pathway in papillary thyroid carcinoma cells. Int J Clin Exp Pathol. 8:9889–9900. 2015.PubMed/NCBI | |
Chruścik A and Lam AK: Clinical pathological impacts of microRNAs in papillary thyroid carcinoma: A crucial review. Exp Mol Pathol. 99:393–398. 2015. View Article : Google Scholar : PubMed/NCBI | |
Nicholson KM and Anderson NG: The protein kinase B/Akt signalling pathway in human malignancy. Cell Signal. 14:381–395. 2002. View Article : Google Scholar : PubMed/NCBI | |
Xue G and Hemmings BA: PKB/Akt-dependent regulation of cell motility. J Natl Cancer Inst. 105:393–404. 2013. View Article : Google Scholar : PubMed/NCBI | |
Osaki M, Oshimura M and Ito H: PI3K-Akt pathway: Its functions and alterations in human cancer. Apoptosis. 9:667–676. 2004. View Article : Google Scholar : PubMed/NCBI | |
Manzella L, Stella S, Pennisi MS, Tirrò E, Massimino M, Romano C, Puma A, Tavarelli M and Vigneri P: New insights in thyroid cancer and p53 family proteins. Int J Mol Sci. 18:pii: E1325. 2017. View Article : Google Scholar : PubMed/NCBI | |
Zhu X, Zhao L, Park JW, Willingham MC and Cheng SY: Synergistic signaling of KRAS and thyroid hormone receptor β mutants promotes undifferentiated thyroid cancer through MYC up-regulation. Neoplasia. 16:757–769. 2014. View Article : Google Scholar : PubMed/NCBI | |
Kataki A, Sotirianakos S, Memos N, Karayiannis M, Messaris E, Leandros E, Manouras A and Androulakis G: P53 and C-FOS overexpression in patients with thyroid cancer: An immunohistochemical study. Neoplasma. 50:26–30. 2003.PubMed/NCBI | |
Aliyev A, Soundararajan S, Bucak E, Gupta M, Hatipoglu B, Nasr C, Siperstein A and Berber E: The utility of peripheral thyrotropin receptor mRNA in the management of differentiated thyroid cancer. Surgery. 158:1089–1094. 2015. View Article : Google Scholar : PubMed/NCBI | |
Huang FJ, Zhou XY, Ye L, Fei XC, Wang S, Wang W and Ning G: Follicular thyroid carcinoma but not adenoma recruits tumor-associated macrophages by releasing CCL15. BMC Cancer. 16:982016. View Article : Google Scholar : PubMed/NCBI |