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Alternative & Integrative Medicine

ISSN: 2327-5162

Open Access

Phytochemical Isoliquiritigenin Inhibits Angiogenesis Ex Vivo and Corneal Neovascularization in Mice

Abstract

Lingling Yang, Wenxiao He, Huihua Qu, Changkai Jia, Yao Wang, Yiqiang Wang and Dongmin Liu

Neovascularization is often involved in many diseases and there is no effective treatment for this pathological process. In searching for potential therapies for neovascularization, we screened nineteen pre-selected small molecules isolated from herbal extracts for their possible anti-angiogenic effect in vitro and in vivo. We found that isoliquiritigenin, a chalconoid compound isolated from Chinese herb medicine licorice, potently inhibited vascular endothelial cell (EC) proliferation, migration, tube -like structure formation ex vivo. Western blot analysis shows that exposure of ECs to isoliquiritigenin inhibited extracellular signal-regulated kinase 1/2 (ERK1/2) phosphorylation. In Matrigel plug assay, isoliquiritigenin effectively blocked fibroblast growth factor-induced in vivo angiogenesis in mice. Consistently, topical application of isoliquiritigenin significantly inhibited chemical injury-induced corneal neovascularization in mice. Collectively, these results suggest that isoliquiritigenin may be a low-cost and effective natural agent to treat angiogenesis-dependent diseases

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Citations: 476

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