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[Detection of CD62P (GMP-140) on peripheral blood platelet membrane in various heart diseases]
Insights
This study measured CD62P on platelets in heart disease patients. Abnormal CD62P levels suggest activated platelets may contribute to heart disease development.
Area of Science:
- Biochemistry
- Hematology
- Immunology
Context:
- Platelet activation is implicated in cardiovascular disease pathogenesis.
- CD62P (P-selectin) is a marker of platelet activation expressed on the platelet surface membrane.
Purpose:
- To evaluate the clinical significance of CD62P expression on platelets in patients with heart disease.
- To investigate the association between CD62P levels and different types of heart conditions.
Summary:
- Whole blood from 64 heart disease patients and 30 healthy adults was analyzed using flow cytometry.
- Anti-CD62P antibody was used to quantify platelet surface expression.
- Abnormal CD62P levels were detected in patients with unstable angina, acute myocardial infarction, old myocardial infarction, and mitral stenosis.
Impact:
- Findings suggest that activated platelets may play a role in the pathogenesis of heart disease.
- This research highlights the potential of CD62P as a biomarker for cardiovascular conditions.
Abstract:
The protein CD62P expressed on platelet surface membrane was measured by flow cytometry to evaluate its clinical significance. Whole blood contained 0.32% citrate from 64 patients with heart disease and 30 healthy adults were fixed with 0.1% paraformaldehyde. To 50 microliters of the fixed blood, 10 microliters of CD62 PE (Becton Dickinson) was added. After standing for 20 minutes at room temperature, the samples were washed and suspended in 1ml of PBS. Platelets were analyzed with Spectrum III (Ortho) flow cytometer. In healthy control, the percentage of platelets positive for anti-CD62P was 0.16 +/- 0.20 (mean +/- SD)%. Abnormal levels of CD62P were observed in 5 patients with unstable angina, 6 patients with acute myocardial infarction, 1 patient with old myocardial infarction, and 2 patients with mitral stenosis. These results show that activated platelets may play some roles in pathogenesis of heart disease though it is not fully clear yet.