Acute Myocardial Infarction Clinical Trial
Official title:
The Relationship of Change of Dendritic Cells Fractalkine and P-selectin in Patients With Acute Myocardial Infarction
This study evaluates the relationship of change of dendritic cells fractalkine and P-selectin in patients with acute myocardial infarction.
Dendritic cells (DCs) are the most potent antigen-presenting cells, with the unique ability to initiate a primary immune response to certain antigens by activation of "naive" T cells, and are actively related to the process of atherosclerosis. Two DC subsets, myeloid DCs (mDCs) and plasmacytoid DCs (pDCs), were identified in humans. In our previous study, the investigators found that change of dendritic cells and fractalkine in patients with acute myocardial infarction. At the same time, the level of P-selectin increased. In addition, the interaction of dendritic cells and P-selectin promotes the progress of atherosclerosis. In this study, the investigators want to see whether the balance between mDCs and pDCs is altered in patients with acute myocardial infarction. sP-selectin is one of the members of the family of proteins, mediate leukocyte adhesion and rolling in vascular endothelial, studies have shown that in patients with unstable angina and acute myocardial infarction in serum sP-selectin protein increased significantly, showed that sP-selectin associated with the activity of coronary heart disease, causing plaque instability.However, there is few relevant studies about the relationship of dendritic cells and P-selectin in patients with acute myocardial infarction. This study valuates the relationship of dendritic cells and P-selectin in patients with acute myocardial infarction ;
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