Gene inhibition and gene augmentation for the treatment of vascular proliferative disorders

Area of Science:

• Cardiovascular Biology
• Gene Therapy
• Vascular Biology

Background:

• Vasculoproliferative diseases like restenosis and graft occlusion lack effective treatments.
• Vascular smooth muscle cell proliferation drives lesion formation in these conditions.

Purpose of the Study:

• To explore gene therapy as a treatment for vasculoproliferative diseases.
• To investigate methods for preventing vascular lesion formation and graft failure.

Main Methods:

• Blocking genes that regulate cell cycle progression in vascular smooth muscle cells.
• Developing genetically engineered bioprostheses resistant to atherosclerosis.
• In vivo gene transfer of endothelial nitric oxide synthase (eNOS) cDNA.

Main Results:

• Blockade of cell cycle genes prevented vascular smooth muscle proliferation and lesion formation.
• Genetically engineered bioprostheses demonstrated resistance to accelerated atherosclerosis and graft failure.
• In vivo eNOS gene transfer inhibited neointimal lesion formation and improved vascular reactivity.

Conclusions:

• Gene therapy, through gene blockade or paracrine effects, shows promise for treating vasculoproliferative diseases.
• Targeting cell cycle genes and utilizing eNOS gene transfer are viable strategies for preventing vascular disease progression.