Amentoflavone inhibits angiogenesis of endothelial cells and stimulates apoptosis in hypertrophic scar fibroblasts

Jinli Zhang, Zhihe Liu, Wenjuan Cao, Liying Chen, Xifeng Xiong, Shengnan Qin, Zhi Zhang, Xiaojian Li, Chien-an A Hu

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Amentoflavone (8-[5-(5,7-dihydroxy-4-oxo-chromen-2-yl)-2-hydroxy-phenyl]-5,7-dihydroxy-2-(4-hydroxyphenyl) chromen-4-one; AF) is a biflavonoid derived from the extracts of Selaginella tamariscina. It has been shown that AF has diverse biological effects such as antitumour, etc. It is well known that high cell proliferation, viability, angiogenesis and low apoptosis are key factors in hypertrophic scar formation. In this study, we report that AF inhibited viability and stimulated apoptosis in hypertrophic scar fibroblasts (HSFBs). Incubation of HSFBs with AF showed its inhibitory effect on cell viability and the exhibition of a series of cellular changes that were consistent with apoptosis. By Western-blot analysis, our data indicated significant increases in the amounts of cleaved caspases 3, 8, 9 and Bax, several apoptotic promoters and a significant decrease in translationally controlled tumour protein (TCTP), an apoptotic inhibitor, in HSFBs treated with AF. Furthermore, AF showed significant inhibitions on the viability, migration and tube formation of endothelial cells, which are associated with angiogenesis. In conclusion, this study suggests that AF stimulates apoptosis in HSFBs and inhibits angiogenesis of endothelial cells. Therefore, AF is a promising molecule that can be used in hypertrophic scar treatment.

Original languageEnglish
Pages (from-to)922-929
Number of pages8
JournalBurns
Volume40
Issue number5
DOIs
Publication statusPublished - Aug 2014
Externally publishedYes

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