Imatinib suppresses activation of hepatic stellate cells by targeting STAT3/IL‐6 pathway through miR‐124
H Alavifard, S Mazhari, A Meyfour… - Cell Biology …, 2023 - Wiley Online Library
Cell Biology International, 2023•Wiley Online Library
The activation of hepatic stellate cells is the primary function of facilitating liver fibrosis.
Interfering with the coordinators of different signaling pathways in activated hepatic stellate
cells (aHSCs) could be a potential approach in ameliorating liver fibrosis. Regarding the
illustrated anti‐fibrotic effect of imatinib in liver fibrosis, we investigated the imatinib′ s
potential role in inhibiting HSC activation through miR‐124 and its interference with the
STAT3/hepatic leukemia factor (HLF)/IL‐6 circuit. The anti‐fibrotic effect of imatinib was …
Interfering with the coordinators of different signaling pathways in activated hepatic stellate
cells (aHSCs) could be a potential approach in ameliorating liver fibrosis. Regarding the
illustrated anti‐fibrotic effect of imatinib in liver fibrosis, we investigated the imatinib′ s
potential role in inhibiting HSC activation through miR‐124 and its interference with the
STAT3/hepatic leukemia factor (HLF)/IL‐6 circuit. The anti‐fibrotic effect of imatinib was …
Abstract
The activation of hepatic stellate cells is the primary function of facilitating liver fibrosis. Interfering with the coordinators of different signaling pathways in activated hepatic stellate cells (aHSCs) could be a potential approach in ameliorating liver fibrosis. Regarding the illustrated anti‐fibrotic effect of imatinib in liver fibrosis, we investigated the imatinib′s potential role in inhibiting HSC activation through miR‐124 and its interference with the STAT3/hepatic leukemia factor (HLF)/IL‐6 circuit. The anti‐fibrotic effect of imatinib was investigated in the LX‐2 cell line and carbon tetrachloride (CCl4)‐induced Sprague‐Dawley rat. The expression of IL‐6, STAT3, HLF, miR‐124, and α‐smooth muscle actin (α‐SMA) were quantified by quantitative real‐time PCR (qRT‐PCR) and the protein level of α‐SMA and STAT3 was measured by western blot analysis both in vitro and in vivo. The LX‐2 cells were subjected to immunocytochemistry (ICC) for α‐SMA expression. After administering imatinib in the liver fibrosis model, histopathological examinations were done, and hepatic function serum markers were checked. Imatinib administration alleviated mentioned liver fibrosis markers. The expression of miR‐124 was downregulated, while IL‐6/HLF/STAT3 circuit agents were upregulated in vitro and in vivo. Notably, imatinib intervention decreased the expression of IL‐6, STAT3, and HLF. Elevated expression of miR‐124 suppressed the expression of STAT3 and further inhibited HSCs activation. Our results demonstrated that imatinib not only ameliorated hepatic fibrosis through tyrosine kinase inhibitor (TKI) activity but also interfered with the miR‐124 and STAT3/HLF/IL‐6 pathway. Considering the important role of miR‐124 in regulating liver fibrosis and HSCs activation, imatinib may exert its anti‐fibrotic activity through miR‐124.
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