We are attempting to understand the intracellular pathways which regulate the growth and migration of vascular smooth muscle cells (smc). This is of particular interest since smooth muscle cell proliferation and migration is thought to be largely responsible to restenosis following balloon angioplasty, as well as being an initial event in atherosclerosis. Using techniques of molecular and cell biology, we are attempting to understand how extracellular (outside) signals are converted into pathways inside the cell that stimulate proliferation and movement. We have recently demonstrated that smc which are stimulated to grow produce large intracellular quantities of hydrogen peroxide (H2O2). This production of hydrogen peroxide has been shown to be necessary for smcs to respond to growth factors. These results may be relevant to explaining a mechanism for the cardioprotective effects of dietary antioxidant.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Intramural Research (Z01)
Project #
1Z01HL004927-03
Application #
5203581
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
3
Fiscal Year
1995
Total Cost
Indirect Cost
Name
National Heart, Lung, and Blood Institute
Department
Type
DUNS #
City
State
Country
United States
Zip Code