کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2542364 1122698 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Upregulation of tissue factor expression and thrombogenic activity in human aortic smooth muscle cells by irradiation, rapamycin and paclitaxel
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Upregulation of tissue factor expression and thrombogenic activity in human aortic smooth muscle cells by irradiation, rapamycin and paclitaxel
چکیده انگلیسی

BackgroundIntracoronary brachytherapy as well as rapamycin or paclitaxel coated stents reduce restenosis rates after stenting, but are associated with an increased risk of late stent thrombosis. Tissue factor (TF) may contribute to late thrombosis. This study examined the impact of rapamycin and paclitaxel on TF expression and compares the TF activity induction of both drugs and irradiation in SMCs.MethodsSMCs were stimulated with rapamycin, paclitaxel or irradiation. Real-time PCR, a chromogenic TF activity assay and Western blotting were done.ResultsRapamycin or paclitaxel increased the TF mRNA expression 5-fold and the TF activity 4- to 6-fold with a maximum at 5 h. Irradiation induced TF activity 2- to 4-fold with a maximum at 7 days.ConclusionThe fast increase of TF expression in SMCs post rapamycin and paclitaxel treatment may explain acute stent thrombosis when anti-thrombotic therapies are withdrawn, whereas the irradiation induced long term increase of cellular thrombogenicity may contribute to late thrombosis post intracoronary brachytherapy. Therapies counteracting these side effects may reduce the risk of thrombotic complications after the coronary application of anti-proliferative therapies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Immunopharmacology - Volume 8, Issue 2, February 2008, Pages 307–311
نویسندگان
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