Grape-seed polyphenols inhibit AAA in mice via regulation of macrophage polarization.
Bratisl Lek Listy
; 121(9): 680-685, 2020.
Article
em En
| MEDLINE
| ID: mdl-32990018
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, inï¬ammatory, polarization.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Aneurisma da Aorta Abdominal
/
Vitis
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Polifenóis
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Macrófagos
Limite:
Animals
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article