Transforming growth factor-β1 induces fibrosis in rat meningeal mesothelial cells via the p38 signaling pathway.

Abstract:

:Leptomeningeal fibrosis is important in the pathogenesis of communicating hydrocephalus following subarachnoid hemorrhage; however, the underlying mechanisms of leptomeningeal fibrosis remain largely unclear. In the present study, primary meningeal mesothelial cells (MMCs) were used as a cell model to investigate the effect of transforming growth factor‑β1 (TGF‑β1) on leptomeningeal fibrosis. Firstly, primary MMCs were isolated from rat brains and characterized by immunofluorescene, staining positive for keratin and vimentin, but negative for factor VIII. Upon TGF‑β1 treatment, MMCs were induced to express connective tissue growth factor (CTGF), an indicator of fibrosis, in a dose‑dependent manner. Furthermore, p38 mitogen‑activated protein kinase (MAPK) signaling was significantly activated by TGF‑β1. However, in the presence of a p38 MAPK inhibitor, TGF‑β1‑induced CTGF expression was markedly suppressed. Together, these data suggest that TGF‑β1 could induce fibrosis of MMCs via the p38 MAPK signaling pathway, providing a novel potential target for intervention in TGF‑β1‑induced leptomeningeal fibrosis.

journal_name

Mol Med Rep

authors

Yue XJ,Guo Y,Yang HJ,Feng ZW,Li T,Xu YM

doi

10.3892/mmr.2016.5411

subject

Has Abstract

pub_date

2016-08-01 00:00:00

pages

1709-13

issue

2

eissn

1791-2997

issn

1791-3004

journal_volume

14

pub_type

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