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Angiogenesis And Cancer Growth Controllable By Methylation Signaling

by Dr. Enozia Vakil on  November 29, 2013 at 4:02 PM Cancer News   - G J E 4
A new mechanism that involves a signalling protein and its receptor could now block the spread of cancer and formation of new blood vessels, according to a new study. The findings are published in the December issue of Science Signaling.
 Angiogenesis And Cancer Growth Controllable By Methylation Signaling
Angiogenesis And Cancer Growth Controllable By Methylation Signaling
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Angiogenesis creates new blood vessels in a process that can lead to the onset and progression of several diseases such as cancer and age-related macular degeneration.

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Vascular endothelial growth factor (VEGF) is a signaling protein produced by damaged cells, which binds to one of its receptors VEGFR-2, located on the surface of blood vessel cells. Once VEGF is bound to its receptor, it is activated and sends a biochemical signal to the inside of the blood vessel cell to initiate angiogenesis. There are currently multiple Federal Drug Administration-approved medications that target this process. However these medications are limited by insufficient efficacy and the development of resistance.

The researchers demonstrated that a biochemical process called methylation, which can regulate gene expression, also affects VEGFR-2, and this can lead to angiogenesis. Using multiple methods, the researchers were able to interfere with the methylation process of VEGFR-2 and subsequently block angiogenesis and tumor growth.

"The study points to the methylation of VEGFR-2 as an exciting, yet unexplored drug target for cancer and ocular angiogenesis, ushering in a new paradigm in anti-angiogenesis therapy," said Nader Rahimi, PhD, associate professor of pathology, BUSM, who served as the study's senior investigator.



Source: Eurekalert
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