ArticleJournal of cellular and molecular medicine2024
Geraniin Alleviates Mouse Laser-Induced Choroidal Neovascularisation by Inhibiting Choroidal Endothelial Cell ACE2/Ang-(1-7)/MasR/IL-10 Pathway.
Article in Journal of cellular and molecular medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Anti-vascular endothelial growth factor (VEGF) drugs suppress choroidal neovascularisation (CNV), thus improving vision. However, some patients may have a poor response or develop resistance to anti-VEGF drugs. Geraniin (GE), a polyphenol isolated from an herb called Phyllanthus amarus, possesses anti-angiogenic properties. This study aimed to explore the mechanism of action of GE in CNV. GE was found to activate the angiotensin-converting enzyme 2 (ACE2)/angiotensin 1-7 (Ang-[1-7])/MAS1 proto-oncogene, G protein-coupled receptor (MasR)/interleukin-10 (IL-10) pathway in hypoxic human choroidal endothelial cells (HCECs) in vitro and mouse models of laser-induced CNV in vivo. Activation of the ACE2/Ang-(1-7)/MasR/IL-10 pathway by GE attenuated the proliferative, migratory, and tube-forming abilities of hypoxic HCECs and prevented the development of CNV in mice. Notably, GE did not cause ocular or systemic toxicity in mice with CNV. These findings suggest that GE alleviates CNV by activating the ACE2/Ang-(1-7)/MasR/IL-10 pathway in choroidal endothelial cells (CECs).
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