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Article Open Access

MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells

  • Authors:
    • Jingxiong Li
    • Bohong Cen
    • Siping Chen
    • Yuanli He
  • View Affiliations / Copyright

    Affiliations: Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical Universtiy, Guangzhou, Guangdong 510150, P.R. China, Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China, Department of Obstetrics and Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
    Copyright: © Li et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 4229-4237
    |
    Published online on: March 30, 2016
       https://doi.org/10.3892/mmr.2016.5062
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Abstract

Transforming growth factor (TGF)‑β1 has a key role in the regulation of fibrosis and organ dysfunction. During the pathogenesis and progression of vital organ fibrosis, the microRNA (miR)‑29 family is irregularly downregulated and exogenous supplementation of miR‑29b has a strong anti‑fibrotic capacity. However, whether TGF‑β1 is able to provoke endometrial fibrosis, and the role of miR‑29 in endometrial fibrosis remain unclear. In the present study, RT‑qPCR, immunocytochemistry, western blot analysis, scanning electron microscopy, immunofluorescence staining, cell proliferation assay and flow cytometric analysis were employed. The results demonstrated that the expression levels of collagen, type 1, alpha 1 (COL1A1), α‑smooth muscle actin (α‑SMA) and phosphorylated (p)‑Smad2/3 were increased, whereas miR‑29b and maternally expressed gene 3 (MEG3) were decreased in primary endometrial stromal cells (ESCs) in response to TGF‑β1 stimulation, in a time and dose‑dependent manner. Furthermore, overexpression of miR‑29b markedly reduced the expression levels of COL1A1 and α‑SMA, and decreased the expression and nuclear accumulation of p‑Smad2/3. In addition, ectopic overexpression of miR‑29b increased the expression levels of MEG3, inhibited myofibroblast‑like cell proliferation and induced apoptosis. These findings indicated that miR‑29b may have a significant anti‑fibrotic role, and may attenuate TGF‑β1‑induced fibrosis in ESCs. Therefore, exogenous miR‑29b may serve as a potential therapeutic agent for the treatment of endometrial fibrosis.
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Copy and paste a formatted citation
Spandidos Publications style
Li J, Cen B, Chen S and He Y: MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells. Mol Med Rep 13: 4229-4237, 2016.
APA
Li, J., Cen, B., Chen, S., & He, Y. (2016). MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells. Molecular Medicine Reports, 13, 4229-4237. https://doi.org/10.3892/mmr.2016.5062
MLA
Li, J., Cen, B., Chen, S., He, Y."MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells". Molecular Medicine Reports 13.5 (2016): 4229-4237.
Chicago
Li, J., Cen, B., Chen, S., He, Y."MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells". Molecular Medicine Reports 13, no. 5 (2016): 4229-4237. https://doi.org/10.3892/mmr.2016.5062
Copy and paste a formatted citation
x
Spandidos Publications style
Li J, Cen B, Chen S and He Y: MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells. Mol Med Rep 13: 4229-4237, 2016.
APA
Li, J., Cen, B., Chen, S., & He, Y. (2016). MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells. Molecular Medicine Reports, 13, 4229-4237. https://doi.org/10.3892/mmr.2016.5062
MLA
Li, J., Cen, B., Chen, S., He, Y."MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells". Molecular Medicine Reports 13.5 (2016): 4229-4237.
Chicago
Li, J., Cen, B., Chen, S., He, Y."MicroRNA-29b inhibits TGF-β1-induced fibrosis via regulation of the TGF-β1/Smad pathway in primary human endometrial stromal cells". Molecular Medicine Reports 13, no. 5 (2016): 4229-4237. https://doi.org/10.3892/mmr.2016.5062
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