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Basic and Clinical Cancer Research، جلد ۸، شماره ۳، صفحات ۹-۱۶
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عنوان انگلیسی Translation of triple-negative breast cancer behavior from xenograft model to human
چکیده انگلیسی مقاله Background: For xenograft models of triple-negative breast cancer (TNBC) to be valuable in development of molecularly-targeted drugs, careful characterization is essential to their validation. The present study aimed to validate the TNBC xenograft model with a specific focus on angiogenesis. Methods : Twelve TNBC xenograft tumors and 12 human breast cancer tumors (HTNBC) were included in this study. Both groups were grade III and p53 positive. Nuclear pleomorphism and mitotic count were analyzed by hematoxylin and eosin (H&E) stains respectively. Basal cytokeratin (CK5/6), vimentin, cathepsin-D, Ki-67 (for proliferation), and MVD-CD34 (for angiogenesis) markers were examined by immunohistochemistry (IHC). The association of Microvesseles density (MVD) with Ki-67, nuclear pleomorphism, and mitotic count was assessed in each group separately, and HTNBCs were compared with the xenograft group. Results: The xenograft models showed a significant correlation between angiogenesis (MVD) and cell proliferation (Ki-67), nuclear pleomorphism, and mitotic count (p= 0.0398; p= 0.020; p=0.001, respectively). The HTNBC group also showed a similar trend, except nuclear pleomorphism (p=0.193), which did not correlate with angiogenesis. Comparison between the two groups showed significant changes in cell proliferation (Ki-67 and vimentin). The difference in proliferation rate and vimentin expression between the two groups can be due to biological diversity between human and mice and epithelial-mesenchymal transition (EMT), respectively. Conclusion: Our results, re-emphasize the significance of angiogenic treatment therapy in patients with TNBC, and further validate the TNBC xenograft model as a valid model for drug discovery and development.
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نویسندگان مقاله ساناز ریسمانچی | sanaz rismanchi
cancer biology research center, cancer institute, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

احد محمدنژاد | ahad muhammadnejad
cancer research center, cancer institute, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

الهه کیهانی | elahe keyhani
genetics research center, university of social welfare amp;amp; rehabilitation sciences, tehran, iran


صمد محمدنژاد | samad muhammadnejad
research center for molecular and cellular imaging, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

سعید امان پور | saeid amanpour
cancer biology research center, cancer institute, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://bccr.tums.ac.ir/index.php/bccrj/article/view/199
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Articles
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