| Literature DB >> 28737764 |
Jin Gong1, Jian Han1, Jiayi He2, Jingmei Liu1, Ping Han1, Yunwu Wang1, Mengke Li1, Dongxiao Li1, Xiangming Ding1, Zhipeng Du1, Jiazhi Liao1, Dean Tian1.
Abstract
Activation of the platelet-derived growth factor (PDGF)/PDGF beta receptor (PDGFβR) axis has a critical role in liver fibrosis. However, the mechanisms that regulate the PDGF signaling are yet to be elucidated. The present study demonstrates that paired related homeobox protein 1 (Prrx1) is involved in PDGF-dependent hepatic stellate cell (HSCs) migration via modulation of the expression of metalloproteinases MMP2 and MMP9. PDGF elevated the level of Prrx1 through the activation of ERK/Sp1 and PI3K/Akt/Ets1 pathways. In vivo, an adenoviral-mediated Prrx1 shRNA administration attenuated liver fibrosis in thioacetamide-induced fibrotic models. These studies reveal a role of Prrx1 as a modulator of PDGF-dependent signaling in HSCs, and inhibiting its expression may offer a therapeutic approach for hepatic fibrosis.Entities:
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Year: 2017 PMID: 28737764 DOI: 10.1038/labinvest.2017.65
Source DB: PubMed Journal: Lab Invest ISSN: 0023-6837 Impact factor: 5.662