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Article Publish Status: FREE
Abstract Title:

Cyanidin‑3‑O‑β‑glucoside protects against pulmonary artery hypertension induced by monocrotaline via the TGF‑β1/p38 MAPK/CREB signaling pathway.

Abstract Source:

Mol Med Rep. 2021 May ;23(5). Epub 2021 Mar 24. PMID: 33760143

Abstract Author(s):

Shao Ouyang, Wei Chen, Zeng Gaofeng, Lei Changcheng, Tian Guoping, Zhu Minyan, Liu Yang, Yang Min, Jiahao Luo

Article Affiliation:

Shao Ouyang

Abstract:

Pulmonary artery hypertension (PAH) is a disease with high morbidity and mortality. Cyanidin‑3‑O‑β‑glucoside (Cy‑3‑g), a classical anthocyanin, has a variety of biological effects. The present study evaluated whether Cy‑3‑g attenuated PAH, and explored the potential mechanism of action. Rats were injected with monocrotaline (MCT; 60 mg per kg of body weight) and then treated with Cy‑3‑g (200 or 400 mg per kg of body weight) for 4 weeks. Protein expression was determinedin transforming growth factor‑β1 (TGF‑β1)‑mediated human pulmonary arterial smooth muscle cells (SMCs). The results indicated that Cy‑3‑g significantly inhibited the mean pulmonary artery pressure, right ventricular systolic pressure and right ventricular hypertrophy index, as well as vascular remodeling induced byMCT in PAH rats. Further experiments showed that Cy‑3‑g suppressed the expression of pro‑-inflammatory factors and enhanced the levels of anti‑inflammatory factors. Cy‑3‑g blocked oxidative stress and improved vascular endothelial injury. Cy‑3‑g also reduced the proliferation of SMCs. Furthermore, the MCT‑ and TGF‑β1‑induced increase in TGF‑β1, phosphorylated (p)‑p38 mitogen‑activated protein kinase (MAPK) and p‑cAMP‑response element binding protein (CREB) expression was blocked by Cy‑3‑g treatmentand. These results indicated that Cy‑3‑g could prevent vascular remodeling in PAH via inhibition of the TGF‑β1/p38 MAPK/CREB axis.

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