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  • comparison of endothelialization and neointimal formation with stents coated with antibodies against cd34 and vascular endothelial-cadherin

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1391/01/01
    • تاریخ انتشار در تی پی بین: 1391/01/01
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     vascular endothelial-cadherin (ve-cadherin) is exclusively expressed on the late endothelial progenitor cells (epc). therefore, ve-cadherin could be an ideal target surface molecule to capture circulating late epc. in the present study, we evaluated whether anti-ve-cadherin antibody-coated stents (ve-cad stents) might accelerate endothelial recovery and reduce neointimal formation more than anti-cd34 antibody-coated stents (cd34 stents) through the superior ability to capture the late epc. the stainless steel stents were coated with anti-human ve-cadherin antibodies or anti-human cd34 antibodies under the same condition. in vitro, ve-cad stents showed higher number of adhering epc (823.6 ± 182.2 versus 379.2 ± 137.2 cells per hpf, p < 0.001). ve-cad stents also demonstrated better specific capturing of cells with endothelial lineage markers than cd34 stents did in flow cytometric analysis. ve-cad stents showed more effective re-endothelialization after 1 h, 24 h, and 3 days in vivo. at 42 days, ve-cad stents demonstrated significantly smaller neointima area (0.92 ± 0.38 versus 1.24 ± 0.41 mm2p = 0.002) and significantly lower pcna positive cells in neointima (1684.8 ± 658.8/mm2 versus 2681.7 ± 375.1/mm2p = 0.008), compared with cd34 stents. in conclusion, ve-cad stents captured epc and endothelial cells more selectively in vitro, accelerated re-endothelialization over stents, and reduced neointimal formation in vivo, compared with cd34 stents.

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