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Restenosis and gene therapy
1Department of Experimental Surgery and Anaesthesiology, University of Leuven, Campus Gasthuisberg O&N, Herestraat 49, B-3000 Leuven, Belgium.
Insights
Local gene therapy offers a promising adjunctive treatment for restenosis after angioplasty and stenting. Strategies focus on inhibiting smooth muscle cell proliferation and enhancing arterial healing.
Area of Science:
- Cardiovascular Medicine
- Molecular Biology
- Biotechnology
Background:
- Atherosclerosis is a leading cause of death and disease.
- Angioplasty and stenting for atherosclerosis can lead to restenosis.
- Restenosis involves neointima formation and vascular remodeling, necessitating new treatments.
Purpose of the Study:
- To review the potential of local gene therapy for preventing restenosis.
- To explore strategies targeting smooth muscle cell proliferation, migration, thrombosis, oxidative stress, and re-endothelialization.
- To discuss vector systems and devices for arterial gene transfer.
Main Methods:
- Review of current literature on gene therapy for vascular restenosis.
- Focus on molecular and cellular mechanisms underlying restenosis.
- Analysis of different gene delivery vectors and local administration methods.
Main Results:
- Gene therapy can target key pathways in restenosis, including SMC proliferation and migration.
- Strategies to reduce thrombosis and oxidative stress are crucial.
- Enhancing re-endothelialization and adaptive remodeling are important therapeutic goals.
- Various vector systems show potential for local gene transfer in the arterial wall.
Conclusions:
- Local gene therapy presents a viable adjunctive strategy to current interventions for restenosis.
- Targeting specific cellular processes offers a promising approach to improve outcomes.
- Further research into efficient and safe gene delivery systems is warranted.
Abstract:
Atherosclerosis is one of the main causes of mortality and morbidity in westernised countries. Treatment of symptomatic atherosclerosis by angioplasty involves major vascular responses such as neointima formation and constrictive vascular remodelling leading to restenosis. Stent placement prevents vasoconstriction but is associated with in-stent neointima formation. Therefore, stent placement requires adjunctive therapy. In this review we discuss the potential of local gene therapy for restenosis. More particularly, we focus on strategies to inhibit smooth muscle cell (SMC) proliferation and migration, prevent thrombosis, decrease oxidative stress in the arterial wall and enhance re-endothelialisation associated with adaptive remodelling. The potential of different vector systems and devices for local gene transfer in the arterial wall is discussed.