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Updated: Apr 29, 2026

Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
Published on: January 28, 2020
[Changes and significance of P-selectin and PAC-1 in coronary heart disease before and after stenting]
Min Hou1, Jing Yu1, Lianxiang Zhang1
1Department of Clinical Laboratory Medicine, Tianjin Chest Hospital, Tianjin 300051, China.
Insights
Coronary artery stenting significantly elevates platelet activation markers, soluble P-selectin (CD62P) and PAC-1, immediately after surgery. These markers return to baseline levels within 24 hours, suggesting a transient increase in thrombosis risk post-stenting.
Area of Science:
- Cardiovascular Medicine
- Hematology
- Biomarker Research
Context:
- Coronary artery stent implantation is a common procedure for treating coronary artery disease.
- Platelet activation plays a critical role in stent thrombosis and restenosis.
- Understanding temporal changes in platelet activation is crucial for optimizing antiplatelet therapy.
Purpose:
- To investigate the dynamic changes in platelet activation status following coronary artery stent implantation.
- To quantify levels of soluble P-selectin (CD62P) and PAC-1 (platelet glycoprotein GPIIb/IIIa fibrinogen receptor) at various time points post-procedure.
Summary:
- Platelet activation markers, CD62P and PAC-1, were significantly elevated immediately after coronary stenting compared to pre-procedure levels.
- Postoperative levels of CD62P and PAC-1 decreased significantly within 2 to 24 hours, returning towards baseline.
- Flow cytometry was used to detect these markers in peripheral blood at multiple time points.
Impact:
- The findings suggest that coronary endothelial damage from stenting may transiently enhance platelet activation within the first 2 hours, potentially increasing thrombosis risk.
- This study provides insights into the temporal profile of platelet activation after stenting, informing clinical management and therapeutic strategies.
- Further research may explore targeted interventions to mitigate this early post-procedural risk.
Objective:
To explore the platelet activation status before and after coronary artery stent implantation at different timepoints.
Methods:
The contents of CD62P (soluble P-selectin) and PAC-1 (platelet glycoprotein GPIIb/IIIa fibrinogen receptor) in patients after coronary stent implantation were detected by flow cytometry (FCM) before, immediately after surgery, postoperative 2, 4, 6 and 24 h in peripheral blood.
Results:
In 65 cases, the levels of CD62P[40.63(25.14-51.01)%] and PAC-1[36.59(20.37-48.41)%] immediately after surgery were significantly higher than their preoperative values [14.79 (9.85-26.66) %, 13.99(11.42-30.133)%] (P < 0.05). And the postoperative levels of 2 h [8.64(4.48-15.67)%, 12.64(6.45-18.83)%], 4 h [7.91(4.56-12.94)%, 12.81(6.89-18.66)%], 6 h [6.53(4.12-9.27)%, 9.43(5.27-15.65)%] and 24 h [6.28(4.36-9.63)%, 10.38(4.63-18.11)%] decreased significantly versus their preoperative values (P < 0.05).
Conclusion:
Stenting of coronary endothelial damage within 2h may enhance platelet activation and boost the risk of thrombosis.
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