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- W133554190 abstract "We prospectively investigated the relationship of circulating endothelial progenitor cells at time of percutaneous coronary intervention to the subsequent development of in-stent restenosis or progression of coronary atherosclerosis. Endothelial progenitor cells provide an endogenous repair mechanism of the dysfunctional endothelium and therefore can play a pathogenic role in coronary atherosclerosis. We studied 155 consecutive stable angina patients (92 men, age 60 ± 11 years). All patients had flow cytometry the day before elective percutaneous coronary intervention in order to derive subpopulations of endothelial progenitor cells. A control group of 20 normal subjects was considered for comparison. At 8-month control angiography, 30 patients showed in-stent restenosis (restenosis group), 22 patients showed progression of coronary atherosclerosis (progression group), whereas the remaining 103 patients had neither in-stent restenosis nor progression of coronary atherosclerosis (stable group). Comparison of the 3 groups did not show any difference in risk factors, cardiac morphology and function, extension of coronary artery disease, and treatment. Absolute numbers of CD34+/KDR+/CD45– cells (i.e., progenitors of endothelial lineage) measured in the restenosis group (1.41 ± 0.64 cells/μl) were significantly higher than in the progression, stable, and control groups (1.03 ± 0.53 cells/μl, 1.07 ± 0.46 cells/μl, and 0.95 ± 0.44 cells/μl, respectively, p < 0.05). Similarly, CD133+/KDR+/CD45– cells (i.e., progenitors of endothelial cells at an earlier stage) were significantly higher in the restenosis (0.63 ± 0.23 cells/μl) compared with progression, stable, and control groups (0.33 ± 0.19 cells/μl, 0.41 ± 0.32 cells/μl, and 0.36 ± 0.15 cells/μl, respectively, p < 0.001). Also, numbers of CD14+/CD45+ cells (i.e., which have a role in angiogenesis via a paracrine effect) were significantly different among the restenosis, progression, stable, and control groups (0.72 ± 0.56 cells/μl vs. 0.51 ± 0.52 cells/μl vs. 0.28 ± 0.54 cells/μl vs. 0.62 ± 0.67 cells/μl, respectively, p < 0.05), whereas CD105+/CD45–/CD34– cells (i.e., which have a receptor for transforming growth factor-beta) were similar among groups. Patients with restenosis have higher numbers of subpopulations of endothelial progenitor cells that incorporate into endothelial cells or play a role in arteriogenesis compared with controls and patients with either progression of coronary atherosclerosis or stable disease." @default.
- W133554190 created "2016-06-24" @default.
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- W133554190 date "2010-01-01" @default.
- W133554190 modified "2023-10-18" @default.
- W133554190 title "Role of Endothelial Progenitor Cells in Restenosis and Progression of Coronary Atherosclerosis After Percutaneous Coronary Intervention" @default.
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- W133554190 doi "https://doi.org/10.1016/j.jcin.2009.10.020" @default.
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