首页|Resveratrol contributes to the inhibition of liver fibrosis by inducing autophagy via the microRNA-20a-mediated activation of the PTEN/PI3K/AKT signaling pathway

Resveratrol contributes to the inhibition of liver fibrosis by inducing autophagy via the microRNA-20a-mediated activation of the PTEN/PI3K/AKT signaling pathway

扫码查看
原文链接
  • NSTL
  • Spandidos Publ Ltd
Liver fibrosis (LF) is a healing response to wounds resulting in liver injury that can cause liver failure or even cancer without functional prevention. Resveratrol (RSV) has been suggested to exert biological effects against various human diseases. MicroRNA-20a (miRNA/miR-20a) has been shown to promote disease progression. The present study aimed to assess the mechanisms through which RSV induces autophagy and activates the miR-20a-mediated phosphatase and tensin homolog (PTEN)/PI3K/AKT signaling pathway in LF. First, a rat model of carbon tetrachlo-ride (CCL4)-induced LF and a cell model of platelet-derived growth factor (PDGF)-BB-stimulated HSC-T6 cells were established for use in subsequent experiments. Subsequently, RSV at a range of concentrations was injected into the model rats with LF. Indicators related to liver injury, oxidative stress and fibrosis were determined in the rats with LF. The RSV-treated HSC-T6 cells were subjected to transfection with miR-20a mimic and PTEN overexpression plasmid to assess the levels of liver injury and LF. A dual-luciferase reporter gene assay was performed to verify the binding sites between PTEN and miR-20a. RSV was found to alleviate LF in rats, and autophagy was enhanced in the rats with LF following RSV treatment. Furthermore, the activation of the PTEN/PI3K/AKT axis attenuated LF, which was reversed by transfection with miR-20a mimic. RSV reversed the inhibitory effects of miR-20a on PTEN expression, reducing miR-20a expression and promoting PTEN, PI3K and p-AKT protein expression, thus attenuating LF. On the whole, the present study demonstrates that RSV induces autophagy and activates the miR-20a-mediated PTEN/PI3K/AKT signaling pathway to attenuate LF. These findings may lead to the development of potential therapeutic strategies for LF.

liver fibrosisresveratrolmicroRNA-20aphosphatase and tensin homologPI3KAKT signaling pathway

Zhu, Lili、Mou, Qiuju、Wang, Yinghui、Zhu, Zixin、Cheng, Mingliang

展开 >

Guizhou Med Univ, Dept Blood Transfus, Affiliated Hosp, Guiyang 550004, Guizhou, Peoples R China

Guizhou Med Univ, Dept Blood Transfus, Affiliated Baiyun Hosp, Guiyang 550004, Guizhou, Peoples R

Guizhou Med Univ, Grad Sch, Guiyang 550004, Guizhou, Peoples R China

Guizhou Med Univ, Dept Infect Dis, Affiliated Hosp, 28 Guiyi St, Guiyang 550004, Guizhou, Peoples R

展开 >

2020

10.3892/ijmm.2020.4748

International journal of molecular medicine

International journal of molecular medicine

SCI
ISSN：1107-3756
年,卷(期)：2020.46(6)
  • 12
  • 47