ArticleCell death & disease2012
A novel angiogenesis inhibitor impairs lovo cell survival via targeting against human VEGFR and its signaling pathway of phosphorylation.
Article in Cell death & disease, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 38 citations in OpenAlex.
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Corrections and comments
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Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Colorectal cancer represents the fourth commonest malignancy, and constitutes a major cause of significant morbidity and mortality among other diseases. However, the chemical therapy is still under development. Angiogenesis plays an important role in colon cancer development. We developed HMQ18-22 (a novel analog of taspine) with the aim to target angiogenesis. We found that HMQ18-22 significantly reduced angiogenesis of chicken chorioallantoic membrane (CAM) and mouse colon tissue, and inhibited cell migration and tube formation as well. Then, we verified the interaction between HMQ18-22 and VEGFR2 by AlphaScreen P-VEGFR assay, screened the targets on angiogenesis by VEGF Phospho Antibody Array, validated the target by western blot and RNAi in lovo cells. We found HMQ18-22 could decrease phosphorylation of VEGFR2(Tyr(1214)), VEGFR1(Tyr(1333)), Akt(Tyr(326)), protein kinase Cα (PKCα) (Tyr(657)) and phospholipase-Cγ-1 (PLCγ-1) (Tyr(771)). Most importantly, HMQ18-22 inhibited proliferation of lovo cell and tumor growth in a human colon tumor xenografted model of athymic mice. Compared with normal lovo cells proliferation, the inhibition on proliferation of knockdown cells (VEGFR2, VEGFR1, Akt, PKCα and PLCγ-1) by HMQ18-22 decreased. These results suggested that HMQ18-22 is a novel angiogenesis inhibitor and can be a useful therapeutic candidate for colon cancer intervention.
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