Cited by 280MicroRNA in disease regulationCancer-related molecular mechanisms researchCytokine Signaling Pathways and Interactions

MicroRNA-26a suppresses tumor growth and metastasis of human hepatocellular carcinoma by targeting interleukin-6-Stat3 pathway

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Yang, Xin, Liang, Lei, Zhang, Xiao-Fei, Jia, Hu-Liang, Qin, Yi, Zhu, Xu-Chao, Gao, Xiao-Mei, Qiao, Peng +8 more·2013·Hepatology

Abstract

Down-regulation of microRNA-26a (miR-26a) is associated with poor prognosis of hepatocellular carcinoma (HCC), but its functional mechanism in HCC remains unclear. In this study, we investigated the roles of miR-26a in tumor growth and metastasis of HCC and found that miR-26a was frequently down-regulated in HCC tissues. Down-regulation of miR-26a correlated with HCC recurrence and metastasis. Through gain- and loss-of-function studies, miR-26a was demonstrated to significantly inhibit in vitro cell proliferation, migration, and invasion. In addition, miR-26a induced G1 arrest and promoted apoptosis of HCC cells. Importantly, miR-26a suppressed in vivo tumor growth and metastasis in nude mice models bearing human HCC. Interleukin-6 (IL-6) was identified as a target of miR-26a. Knockdown of IL-6 induced effects on HCC cells similar to those induced by miR-26a. In contrast, IL-6 treatment abrogated the effects induced by miR-26a up-regulation. Moreover, miR-26a dramatically suppressed expression of signal transducer and activator of transcription 3 (Stat3) target genes, including Bcl-2, Mcl-1, cyclin D1, and MMP2. IL-6 treatment antagonized this effect, while knockdown of IL-6 by IL-6 short hairpin RNA (shIL-6) induced inhibitory effects on the expression of p-Stat3 and its main target genes, similar to miR-26a. The messenger RNA and protein levels of IL-6 inversely correlated with miR-26a in HCCs. Patients with high miR-26a or low IL-6 in HCC tissues had a better prognosis with longer overall survival (OS) and time to recurrence (TTR). In multivariate analysis, miR-26a, IL-6, and their combination were demonstrated to be independent prognostic indicators for OS and TTR of HCC patients. Conclusion: miR-26a could suppress tumor growth and metastasis of HCC through IL-6-Stat3 signaling and is a novel prognostic marker and therapeutic target for HCC. (HEPATOLOGY 2013)

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Crossref · 10.1002/hep.26305

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  • The three selected miRNAs-hsa-miR-122-5p, hsa-let-7a-5p, and hsa-miR-26a-5p-provide complementary and comprehensive coverage of almost all critical genes associated with the MAPK signaling pathway.

    “From this analysis, we selected the three abundant miRNAs-hsa-miR-122-5p, hsa-let-7a-5p, and hsa-miR26a-5p-based on their complementary and comprehensive coverage of almost all the critical genes associated with the MAPK signaling pathway 27-33 as analyzed using miRTarBase version 8.0 and TarBase v8.0 integrated within miRNet (Figure S1).”

    From rAAV-mediated Multi-miRNA Delivery Targeting MAPK Pathway Suppresses Laser-induced Choroidal Neovascularization in Mice (2026) · cites this paper as [32]

    The introductory passage labeled Abstract in our copy lists MAP3K2 among reported targets of miR-26a, supporting a limited connection between one selected miRNA and a MAPK-related gene. The paper's IL-6–Stat3 results do not assess the three miRNAs together or show that they cover almost all critical MAPK-pathway genes. (LLM, conf=0.83)

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  • miR-26a-5p has anti-angiogenic properties and targets MAPK pathway components, including p38.

    “hsa-miR-26a-5p is a well-documented tumor suppressor miRNA with anti-angiogenic properties 32 42,43 and have been shown to target components of the MAPK pathway, including p38.”

    From rAAV-mediated Multi-miRNA Delivery Targeting MAPK Pathway Suppresses Laser-induced Choroidal Neovascularization in Mice (2026) · cites this paper as [32]

    The introductory passage under the Abstract heading describes miR-26a as a tumor suppressor in several cancers and lists MAP3K2 among reported target mRNAs. The paper does not establish anti-angiogenic activity for miR-26a or identify p38 as a target; its mechanistic findings instead concern IL-6–Stat3 signaling (MiR-26a Inhibits the IL-6-Stat3 Signaling Pathway). Page numbers are unavailable in our copy. (LLM, conf=0.85)

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6 of the 49 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Zhou J, Ju W, Wang D, Wu L, Zhu X, Guo Z, et al. Down-regulation of microRNA-26a promotes mouse hepatocyte proliferation during liver regeneration. PLoS One 2012;7:e33577.
  2. Lou W, Ni Z, Dyer K, Tweardy DJ, Gao AC. Interleukin-6 induces prostate cancer cell growth accompanied by activation of stat3 signaling pathway. Prostate 2000;42:239-242.

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Authors
Yang, X., Liang, L., Zhang, X.-F., Jia, H.-L., Qin, Y., Zhu, X.-C., Gao, X.-M., Qiao, P., Zheng, Y., Sheng, Y.-Y., Wei, J.-W., Zhou, H.-J., Ren, N., Ye, Q.-H., Dong, Q.-Z., & Qin, L.-X.
Affiliations
  • Ministry of Education of the People's Republic of China (CN)
  • Shanghai Medical College of Fudan University (CN)
Corresponding author
Qin, Lun-Xiu
Venue
Hepatology
Published
2013-07
Volume
58
Issue
1
Pages
158-170
ISSN
0270-9139 (ISSN-L)
OpenAlex
W2072993593
Cited by
280
References
49
Citations by year
2026: 8 · 2025: 7 · 2024: 6 · 2023: 7 · 2022: 17 · 2021: 14 · 2020: 17 · 2019: 20 · 2018: 35 · 2017: 37 · 2016: 37 · 2015: 27 · 2014: 34 · 2013: 14
FWCI
13.06
Type
journal article
Language
en
Open access
Locations
  • Hepatology (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Ministry of Education of the People's Republic of China
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
microRNA-26a, hepatocellular carcinoma, interleukin-6, STAT3 signaling, metastasis, tumor growth, prognostic factors, apoptosis, cell cycle arrest, Bcl-2, Mcl-1, cyclin D1, MMP-2, tumor recurrence, microRNA therapeutic target
MeSH terms
Animals, Female, Carcinoma, Hepatocellular, Humans, Liver Neoplasms, Male, Mice, Nude, Middle Aged, Signal Transduction, Down-Regulation, Interleukin-6, MicroRNAs, STAT3 Transcription Factor, Mice

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