Home Bratislava Medical Journal 2020 Bratislava Medical Journal Vol.121, No.9, p.680–685,2020

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.2


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Bratislava Medical Journal Vol.121, No.9, p.680–685,2020

Title: Grape-seed polyphenols inhibit AAA in mice via regulation of macrophage polarization
Author: D. Ma, H. T. Shen, J. J. Zhao, Q. Chang, L. B. Tian, Y. Ma, L. Li, Z. Tan

Abstract: AIM: Abdominal aortic aneurysm (AAA) is characterized by macrophage polarization, and at present, no drug therapy is available. Although grape-seed polyphenols (GSP) showed an anti-AAA effect, the role of GSP in the phenotype shift in macrophages remains unknown.
METHOD: The main phenolic compounds in GSP were determined by LC-MS. Male C57BL/6 mice were divided into four equal groups, namely sham group, CaPO4 group, CaPO4+GSP low-dose group, and CaPO4+GSP high-dose group. GSP was administered intragastrically after CaPO4 application. Molecular expressions were histologically evaluated and analyzed by various staining assays and FACS.
RESULTS: GSP administration inhibited CaPO4-induced AAA formation, which correlated with a decrease in macrophage infiltration and retainment of vascular smooth muscle layer as compared to those in the CaPO4 group. FACS assay showed that the GSP administration dose-dependently decreased the CD54 expression (low-dose group: 11.4 ± 2.1 % and high-dose group: 4.8 ± 1.4 % vs 23.2 ± 3.6 %; p < 0.05 and p < 0.01, respectively) and increased the CD206 expression of F4/80-positive cells in GSP-administered groups as compared with that in CaPO4-injured aortas in the CaPO4 group (low-dose group: 22.4 ± 3.3 % and high-dose group: 26.7 ± 4.2 % vs 8.1 ± 1.3 %; p < 0.05 and p < 0.01, respectively).
CONCLUSIONS: GSP could be a pharmacologically potent agent in the treatment of AAA (Tab. 1, Fig. 3,
Ref. 20). Text in PDF www.elis.sk

Keywords: grape-seed polyphenols, abdominal aortic aneurysm, macrophage, inflammatory, polarization
Published online: 21-Aug-2020
Year: 2020, Volume: 121, Issue: 9 Page From: 680, Page To: 685

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