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The E-selectin SER128ARG gene polymorphism and restenosis after successful coronary angioplasty
Mathias Rauchhaus1, Michael Gross, Susanne Schulz
1Klinik und Poliklinik für Innere Medizin III, Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Strasse 40, D-06097 Halle/Saale, Germany. mathias.rauchhaus@medizin.uni-halle.de
Insights
The E-selectin 128Arg allele is linked to an increased risk of restenosis after coronary angioplasty in patients with coronary artery disease (CAD). This genetic variant may contribute to endothelial responses that promote restenosis development.
Area of Science:
- Cardiovascular Genetics
- Molecular Cardiology
- Interventional Cardiology
Background:
- Restenosis after coronary angioplasty is a significant clinical challenge.
- Genetic factors, particularly polymorphisms, may influence endothelial responses to angioplasty-induced injury and subsequent restenosis.
- The E-selectin Ser128Arg gene polymorphism has been associated with coronary artery disease (CAD) pathogenesis.
Purpose of the Study:
- To investigate the association between the E-selectin Ser128Arg gene polymorphism and the risk of post-angioplasty restenosis in patients with CAD.
- To determine if the 128Arg allele acts as a predictor for restenosis development.
Main Methods:
- A case-control study involving two cohorts (derivation and validation) of patients with CAD who underwent successful coronary angioplasty.
- Genotyping for the E-selectin 128Arg allele was performed using polymerase chain reaction (PCR).
- Restenosis was assessed by follow-up angiography, defined as >50% luminal diameter reduction.
Main Results:
- The 128Arg allele was significantly more prevalent in patients who developed restenosis compared to those who remained restenosis-free in both the derivation (14.81% vs. 5.32%, p=0.027) and validation (17.44% vs. 7.14%, p=0.031) studies.
- Multivariate logistic regression analysis identified the 128Arg allele as an independent predictor of restenosis in both study groups (p<0.05).
- No significant differences in soluble E-selectin levels were observed based on genotype, gender, age, or restenosis status.
Conclusions:
- The E-selectin 128Arg allele may be associated with heightened endothelial inflammatory responses to angioplasty-induced injury.
- This genetic variant could serve as a risk factor for the development of post-angioplasty restenosis in patients with coronary artery disease.
- Further research is warranted to elucidate the precise mechanisms linking this polymorphism to restenosis.
Objectives:
Coronary angioplasty remains plagued by the problem of restenosis. Genetic polymorphisms may contribute to the development of restenosis by mediating exaggerated inflammatory responses of the endothelium to angioplasty-induced injury.
Background:
The serine (Ser)-128-arginine (Arg) gene polymorphism of E-selectin has been implicated in the pathogenesis of coronary artery disease (CAD). We sought to explore whether allelic variants relate to post-angioplasty restenosis.
Methods:
The 128Arg allele was analyzed by PCR in 101 (derivation study, age 54+/-1 years, all mean+/-S.E.M.) and 92 (validation study, age 62+/-1 years) patients with CAD who underwent successful angioplasty.
Results:
Restenosis, defined as >50% luminal diameter reduction at the target lesion at follow-up angiography, was found in 54/101 (53%) and 43/92 (47%) patients during follow-up. The 128Arg allele frequency in the derivation study was 10.39% and was 11.96% in the validation study. The 128Arg allele was more prevalent in the restenosis groups (14.81% and 17.44%, respectively) than in the restenosis-free groups (5.32% and 7.14%, respectively, p=0.027 and p=0.031). In multivariate logistic regression, the 128Arg allele emerged as a predictor of restenosis in both studies (p<0.05). There were no differences in the level of soluble E-selectin according to genotype, gender, age (p>0.20), and between patients with restenosis and those without (43.8+/-3.2 vs. 47.4+/-3.1 ng/ml, p>0.20).
Conclusions:
The 128Arg allele of E-selectin may be related to increased endothelial responses to injury, thereby potentially serving as a risk factor for post-angioplasty restenosis in patients with CAD.The development of restenosis remains a problem in patients with CAD. The Ser128Arg polymorphism of E-selectin was analyzed in 101 (derivation) and 92 (validation) CAD patients. Patients with restenosis (54/101 and 43/92) had a higher frequency of the 128Arg allele (14.81 and 17.44%) than those without (5.32%, p=0.027 and 7.14%, p=0.031). In logistic regression, the 128Arg allele emerged as a predictor of restenosis in both studies (p<0.05). The E-selectin 128Arg allele may serve as a risk factor for the development of restenosis.