Open Access

Dihydroartemisinin inhibits the activation and proliferation of hepatic stellate cells by regulating miR‑29b‑3p

  • Authors:
    • Sheng Huan
    • Sumin Sun
    • Shilian Song
    • Jin Dai
    • Guining Zhu
    • Yanling Zhong
    • Yihao Ji
    • Shizhong Zheng
    • Guoping Yin
  • View Affiliations

  • Published online on: April 6, 2023     https://doi.org/10.3892/ijmm.2023.5243
  • Article Number: 40
  • Copyright: © Huan et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Liver fibrosis is an early pathological feature of hepatic diseases. Hepatic stellate cell (HSC) activation and disordered proliferation are associated with liver fibrosis. The present study identified significant differences in the expression levels of microRNA (miRNA/miR)‑29b‑3p in clinical samples and multiple miRNA databases. Subsequently, the specific antifibrotic mechanism of miR‑29b‑3p was further elucidated. Reverse transcription‑quantitative PCR, western blot, ELISA and immunofluorescence were used to detect the expression levels of target genes and proteins. Oil red O, Nile red and trypan blue staining were used to evaluate HSC activation and cell viability. A luciferase assay was used to detect the relationship between miR‑29b‑3p and VEGFA. Adhesion, wound healing, apoptosis double staining and JC‑1 assays were used to detect the effects of VEGFR1 and VEGFR2 knockdown on HSCs. Immunoprecipitation and fluorescence colocalization were used to identify interactions between the proteins. Furthermore, a rat fibrosis model was constructed to investigate the effects of dihydroartemisinin (DHA) and miR‑29b‑3p in vivo and in vitro. The results indicated that miR‑29b‑3p both inhibited the activation of HSCs and limited the proliferation of activated HSCs via lipid droplet recovery and VEGF pathway regulation. VEGFA was identified as a direct target of miR‑29b‑3p, and knockdown of VEGFA induced cell apoptosis and autophagy. Notably, VEGFR1 and VEGFR2 knockdown both promoted apoptosis; however, VEGFR1 knockdown inhibited autophagy, whereas VEGFR2 knockdown induced autophagy. Furthermore, it was revealed that VEGFR2 regulated autophagy by mediating the PI3K/AKT/mTOR/ULK1 pathway. VEGFR2 knockdown also led to ubiquitination of heat shock protein 60, ultimately inducing mitochondrial apoptosis. Finally, DHA was identified as a natural agonist of miR‑29‑3p that effectively prevented liver fibrosis in vivo and in vitro. Overall, the present study determined the molecular mechanism by which DHA inhibited HSC activation and prevented liver fibrosis.
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May-2023
Volume 51 Issue 5

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Huan S, Sun S, Song S, Dai J, Zhu G, Zhong Y, Ji Y, Zheng S and Yin G: Dihydroartemisinin inhibits the activation and proliferation of hepatic stellate cells by regulating miR‑29b‑3p. Int J Mol Med 51: 40, 2023
APA
Huan, S., Sun, S., Song, S., Dai, J., Zhu, G., Zhong, Y. ... Yin, G. (2023). Dihydroartemisinin inhibits the activation and proliferation of hepatic stellate cells by regulating miR‑29b‑3p. International Journal of Molecular Medicine, 51, 40. https://doi.org/10.3892/ijmm.2023.5243
MLA
Huan, S., Sun, S., Song, S., Dai, J., Zhu, G., Zhong, Y., Ji, Y., Zheng, S., Yin, G."Dihydroartemisinin inhibits the activation and proliferation of hepatic stellate cells by regulating miR‑29b‑3p". International Journal of Molecular Medicine 51.5 (2023): 40.
Chicago
Huan, S., Sun, S., Song, S., Dai, J., Zhu, G., Zhong, Y., Ji, Y., Zheng, S., Yin, G."Dihydroartemisinin inhibits the activation and proliferation of hepatic stellate cells by regulating miR‑29b‑3p". International Journal of Molecular Medicine 51, no. 5 (2023): 40. https://doi.org/10.3892/ijmm.2023.5243