کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4135232 1271487 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High expression of tissue inhibitor of metalloproteinase-2 in serous ovarian carcinomas and the role of this expression in ovarian tumorigenesis
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی آسیب‌شناسی و فناوری پزشکی
پیش نمایش صفحه اول مقاله
High expression of tissue inhibitor of metalloproteinase-2 in serous ovarian carcinomas and the role of this expression in ovarian tumorigenesis
چکیده انگلیسی

SummaryTissue inhibitors of metalloproteinases (TIMPs) play key roles in maintaining homeostasis of the extracellular matrix by controlling matrix metalloproteinases (MMPs). In addition to their role in regulating MMPs, TIMPs have also been shown to have pluripotential effects on cell growth, apoptosis, and differentiation. The aim of this study was to evaluate TIMP-2 level in serous ovarian tumor tissues and to understand further the role of TIMP-2 protein in ovarian tumorigenesis. The expression of TIMP-2 was assessed by immunohistochemistry in a total of 57 ovarian specimens, including 5 normal ovaries, 12 benign serous cystadenomas, 20 serous borderline tumors, and 20 serous carcinomas. In addition, we transfected a TIMP-2 plasmid into the gynecologic cancer cell lines SKOV-3, 2774, and HeLa and then assayed cell growth, apoptosis, and MMP-2 activation. We found that TIMP-2 immunostaining was significantly more frequent in serous carcinomas, mainly in tumor epithelium, compared with cells of the other tissues studied. Tissue inhibitor of metalloproteinase-2 overexpression in ovarian cancer cells did not mediate proapoptosis, inhibited cisplatin-induced apoptosis, and induced MMP-2 expression. These findings suggest that TIMP-2 may function to favor tumor growth in serous ovarian tumorigenesis. Additional research is now needed to elucidate further the role of TIMP-2 in the biologic behavior of ovarian serous tumors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Human Pathology - Volume 37, Issue 7, July 2006, Pages 906–913
نویسندگان
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