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Gene therapy for restenosis after balloon angioplasty and stenting
C Indolfi1, C Coppola, D Torella
1Division of Cardiology, Federico II, Via Pansini, 5, 80131 Naples, Italy. indolfi@unina.it
Insights
Restenosis, or artery renarrowing, is a key issue after percutaneous coronary revascularization. This review examines smooth muscle cell signaling and gene transfer strategies to combat restenosis after angioplasty and stenting.
Area of Science:
- Cardiovascular Research
- Molecular Biology
- Interventional Cardiology
Background:
- Percutaneous coronary revascularization is a common treatment for coronary artery disease.
- Restenosis, the renarrowing of arteries, remains a significant complication following these procedures.
- Different mechanisms, including vessel remodeling and neointimal proliferation, underlie restenosis after angioplasty and stenting, respectively.
Purpose of the Study:
- To review recent laboratory and clinical findings on mitogenic signal transmission in smooth muscle cells.
- To explore the mechanisms driving restenosis after balloon angioplasty and stent implantation.
- To discuss the potential of gene transfer for inhibiting smooth muscle cell proliferation and preventing restenosis.
Main Methods:
- Review of current scientific literature on smooth muscle cell signaling pathways.
- Analysis of studies investigating restenosis mechanisms post-angioplasty and stenting.
- Examination of research on gene therapy applications in vascular biology.
Main Results:
- Mitogenic signals regulate smooth muscle cell behavior, contributing to restenosis.
- Vessel wall remodeling is key in restenosis after angioplasty, while neointimal proliferation dominates after stenting.
- Gene transfer holds promise for therapeutic intervention against vascular smooth muscle cell proliferation.
Conclusions:
- Understanding smooth muscle cell signaling is crucial for addressing restenosis.
- Targeting specific pathways involved in proliferation and remodeling may offer new therapeutic avenues.
- Gene therapy presents a potential future strategy to inhibit smooth muscle cell proliferation and improve outcomes of coronary revascularization.
Abstract:
Percutaneous coronary revascularization is an increasingly attractive alternative to medical therapy and surgical revascularization for coronary artery disease. The leading drawback of this procedure continues to be restenosis-the process of late arterial renarrowing at the site of initially successful intervention. Restenosis after balloon angioplasty seems to be determined primarily by the direction and magnitude of vessel wall remodeling. In contrast, the major limitation of stent implantation is the initiation of neointimal tissue proliferation within and adjacent to the stent. The goal of this review is to summarize recent laboratory and clinical investigations of the transmission of mitogenic signals from the membrane to the nucleus in smooth muscle cells. The mechanisms responsible for restenosis after balloon angioplasty and stenting and the possibility of transferring specific genes into somatic vascular cells with molecular tools to inhibit smooth muscle cell proliferation also will be reviewed.