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Title: Wogonoside attenuates liver fibrosis by triggering hepatic stellate cell ferroptosis through SOCS1 / P53 / SLC7A11 pathway

Journal Article · · PTR. Phytotherapy research
DOI:https://doi.org/10.1002/ptr.7558· OSTI ID:1996266
 [1];  [2];  [3];  [4];  [1];  [4]; ORCiD logo [1]; ORCiD logo [5]
  1. School of Pharmacy Anhui University of Chinese Medicine Hefei China
  2. Department of Urology The Second People's Hospital of Hefei Hefei China
  3. Department of Pharmacy The First Affiliated Hospital of Anhui Medical University Hefei China
  4. School of Pharmacy Anhui Medical University Hefei China
  5. Department of Pharmacy The First Affiliated Hospital of Anhui Medical University Hefei China, The Grade 3 Pharmaceutical Chemistry Laboratory of State Administration of Traditional Chinese Medicine Hefei China

Abstract Wogonoside (WG) is a flavonoid chemical component extracted from Scutellaria baicalensis, which exerts therapeutic effects on liver diseases. Ferroptosis, a novel form of programmed cell death, regulates diverse physiological/pathological processes. In this study, we attempted to investigate a novel mechanism by which WG mitigates liver fibrosis by inducing ferroptosis in hepatic stellate cells (HSCs). A CCl 4 ‐induced mouse liver fibrosis model and a rat HSC line were employed for in vivo and in vitro experiments, both treated with WG. Firstly, the levels of the fibrotic markers α‐smooth muscle actin (α‐SMA) and α1(I)collagen (COL1α1) were effectively decreased by WG in CCl 4 ‐induced mice and HSC‐T6 cells. Additionally, mitochondrial condensation and mitochondrial ridge breakage were observed in WG‐treated HSC‐T6 cells. Furthermore, ferroptotic events including depletion of SLC7A11, GPX4 and GSH, and accumulation of iron, ROS and MDA were discovered in WG‐treated HSC‐T6 cells. Intriguingly, these ferroptotic events did not appear in hepatocytes or macrophages. WG‐elicited HSC ferroptosis and ECM reduction were dramatically abrogated by ferrostatin‐1 (Fer‐1), a ferroptosis inhibitor. Importantly, our results confirm that SOCS1/P53/SLC7A11 is a signaling pathway which promotes WG attenuation of liver fibrosis. On the contrary, WG mitigated liver fibrosis and inducted HSC‐T6 cell ferroptosis were hindered by SOCS1 siRNA and pifithrin‐α (PFT‐α). These findings demonstrate that SOCS1/P53/SLC7A11‐mediated HSC ferroptosis is associated with WG alleviating liver fibrosis, which provides a new clue for the treatment of liver fibrosis.

Sponsoring Organization:
USDOE
OSTI ID:
1996266
Journal Information:
PTR. Phytotherapy research, Journal Name: PTR. Phytotherapy research Vol. 36 Journal Issue: 11; ISSN 0951-418X
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
FAO
Language:
English

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