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2016 ; 7
(9
): 662-72
Nephropedia Template TP
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English Wikipedia
Novel matrine derivative MD-1 attenuates hepatic fibrosis by inhibiting EGFR
activation of hepatic stellate cells
#MMPMID27342773
Feng Y
; Ying HY
; Qu Y
; Cai XB
; Xu MY
; Lu LG
Protein Cell
2016[Sep]; 7
(9
): 662-72
PMID27342773
show ga
Matrine (MT), the effective component of Sophora flavescens Ait, has been shown
to have anti-inflammation, immune-suppressive, anti-tumor, and anti-hepatic
fibrosis activities. However, the pharmacological effects of MT still need to be
strengthened due to its relatively low efficacy and short half-life. In the
present study, we report a more effective thio derivative of MT, MD-1, and its
inhibitory effects on the activation of hepatic stellate cells (HSCs) in both
cell culture and animal models. Cytological experiments showed that MD-1 can
inhibit the proliferation of HSC-T6 cells with a half-maximal inhibitory
concentration (IC50) of 62 ?mol/L. In addition, MD-1 more strongly inhibits the
migration of HSC-T6 cells compared to MT and can more effectively induce G0/G1
arrest and apoptosis. Investigating the biological mechanisms underlying
anti-hepatic fibrosis in the presence of MD-1, we found that MD-1 can bind the
epidermal growth factor receptor (EGFR) on the surface of HSC-T6 cells, which can
further inhibit the phosphorylation of EGFR and its downstream protein kinase B
(Akt), resulting in decreased expression of cyclin D1 and eventual inhibition of
the activation of HSC-T6 cells. Furthermore, in rats with dimethylnitrosamine
(DMN)-induced hepatic fibrosis, MD-1 slowed the development and progression of
hepatic fibrosis, protecting hepatic parenchymal cells and improving hepatic
functions. Therefore, MD-1 is a potential drug for anti-hepatic fibrosis.