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New Method to Grow Arteries Could Lead to "Biological Bypass" for Heart Disease | |
| March 9th, 2010 | |
A new method of growing arteries could lead to a "biological bypass"-a non-invasive way to treat coronary artery disease-Yale School of Medicine researchers and their colleagues report in the April issue of the Journal of Clinical Investigation.
"Successfully growing new arteries could provide a biological option for patients facing bypass surgery," said lead author of the study, Michael Simons, M.D., chief of the Section of Cardiology at Yale School of Medicine. In the past, researchers used growth factors-proteins that stimulate the growth of cells-in an attempt to grow new arteries, but this method was unsuccessful. Simons and his team studied mice and zebrafish to see if they could simulate arterial formation by switching on and off two signaling pathways: ERK1/2 and PI3K. "We found that there is cross-talk between the two signaling pathways. One half of the signaling pathway inhibits the other. When we disable the inhibitor mechanism, we are able to grow arteries," said Simons. "Instead of using growth factors, we stopped the inhibitor mechanism by using a drug that targets a particular enzyme called PI3-kinase inhibitor." "Because we've located this inhibitory pathway, this opens the possibility of developing a new class of medication to grow new arteries," Simons added. "The next step is to test this finding in a human clinical trial." Other authors on the study included Bin Ren, Yong Den, Arpita Mukhopadhyay, Anthony A. Lanahan, Zhen W. Zhuang, Karen L. Moodie, Mary Jo Mulligan-Kehoe, Tatiana V. Byzova, and Randall T. Peterson. The Journal of Clinical Investigation Vol. 120, No. 4 (April 2010) Contact: Karen N. Peart 203-432-1326 | |
| This article is relevant to the following subject areas | |
| •Medicine •Biology •Cardiology | |
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