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Bellidifolin Ameliorates Isoprenaline-Induced Myocardial Fibrosis by Regulating TGF-β1/Smads and p38 Signaling and Preventing NR4A1 Cytoplasmic Localization
Myocardial fibrosis is closely related to high morbidity and mortality. In Inner Mongolia, (Michx.) J.M.Gillett ( ) is a kind of tea used to prevent cardiovascular diseases. Bellidifolin (BEL) is an active xanthone molecule from that protects against myocardial damage. However, the effects and mecha...
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Published in: | Frontiers in pharmacology 2021-04, Vol.12, p.644886-644886 |
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Main Authors: | , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Myocardial fibrosis is closely related to high morbidity and mortality. In Inner Mongolia,
(Michx.) J.M.Gillett (
) is a kind of tea used to prevent cardiovascular diseases. Bellidifolin (BEL) is an active xanthone molecule from
that protects against myocardial damage. However, the effects and mechanisms of BEL on myocardial fibrosis have not been reported.
, BEL dampened isoprenaline (ISO)-induced cardiac structure disturbance and collagen deposition.
BEL inhibited transforming growth factor (TGF)-β1-induced cardiac fibroblast (CF) proliferation.
, BEL decreased the expression of α-smooth muscle actin (α-SMA), collagen Ⅰ and Ⅲ, and inhibited TGF-β1/Smads signaling. Additionally, BEL impeded p38 activation and NR4A1 (an endogenous inhibitor for pro-fibrogenic activities of TGF-β1) phosphorylation and inactivation
. In CFs, inhibition of p38 by SB203580 inhibited the phosphorylation of NR4A1 and did not limit Smad3 phosphorylation, and blocking TGF-β signaling by LY2157299 and SB203580 could decrease the expression of α-SMA, collagen I and III. Overall, both cell and animal studies provide a potential role for BEL against myocardial fibrosis by inhibiting the proliferation and phenotypic transformation of CFs. These inhibitory effects might be related to regulating TGF-β1/Smads pathway and p38 signaling and preventing NR4A1 cytoplasmic localization. |
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ISSN: | 1663-9812 1663-9812 |
DOI: | 10.3389/fphar.2021.644886 |