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Published on: May 14, 2013
[Progress in genetic and epigenetic research on in-stent restenosis after percutaneous coronary interventions]
Yan-hong Kang1, Hai-yan Lao, Xi-yong Yu
1Research Center of Guangdong General Hospital, Guangzhou, Guangdong 510080, P. R. China.
Insights
In-stent restenosis (ISR) after coronary interventions like PCI remains a challenge. Genetic and epigenetic factors significantly influence ISR development, offering potential targets for personalized risk assessment.
Area of Science:
- Cardiovascular Medicine
- Genetics
- Epigenetics
Context:
- Coronary heart disease is a leading cause of mortality, with percutaneous coronary intervention (PCI) being a key treatment.
- In-stent restenosis (ISR) remains a significant complication following PCI, affecting 5-10% of patients despite drug-eluting stents (DES).
- Vascular endothelial and smooth muscle cell hyperplasia are primary drivers of restenosis, but individual variations in susceptibility are not fully understood.
Purpose:
- To review the current understanding of genetic and epigenetic factors contributing to the progression of in-stent restenosis (ISR) after PCI.
- To highlight the role of these factors in personalized differences in restenosis occurrence.
- To provide insights for identifying genetic risk factors in patients undergoing PCI.
Summary:
- ISR is driven by cellular proliferation and migration, with increasing evidence pointing to genetic and epigenetic influences.
- Factors such as aging, smoking, and diabetes are known risks, but genetic predisposition and epigenetic modifications are emerging as critical determinants of ISR.
- This review synthesizes research on genetic and epigenetic factors implicated in ISR progression.
Impact:
- Understanding genetic and epigenetic contributions to ISR can lead to improved patient stratification and personalized treatment strategies.
- Identification of specific genetic risk factors may enable proactive management and prevention of restenosis.
- This knowledge can help reduce the clinical and economic burden associated with ISR and repeat interventions.
Abstract:
Coronary heart disease is one of the most important causes of death in human, and consumes vast medical resources. Percutaneous coronary intervention (PCI) has been a significant breakthrough for its treatment. However, clinical application has been hampered by in-stent restenosis (ISR). Although drug eluting stent (DES) has reduced the occurrence of restenosis, incidence of ISR is still about 5% to 10%. The main reasons for restenosis after PCI are hyperplasia of vascular endothelial cells and smooth muscle cell migration. The exact mechanism of personalized differences in restenosis is not clear yet, but there may be a variety of risk factors. In addition to aging, smoking and diabetes, an increasing number of studies have found that genetic and epigenetic factors play an important role in ISR. In this article, authors have reviewed genetic and epigenetic factors on the progression of ISR, which may help to determine the genetic risk factors in patients with ISR after PCI.
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