TAILIEUCHUNG - báo cáo khoa học: "ShRNA-mediated gene silencing of MTA1 influenced on protein expression of ER alpha, MMP-9, CyclinD1 and invasiveness, proliferation in breast cancer cell lines MDA-MB-231 and MCF-7 in vitro"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: ShRNA-mediated gene silencing of MTA1 influenced on protein expression of ER alpha, MMP-9, CyclinD1 and invasiveness, proliferation in breast cancer cell lines MDA-MB-231 and MCF-7 in vitro | Jiang et al. Journal of Experimental Clinical Cancer Research 2011 30 60 http content 30 1 60 Journal of Experimental Clinical Cancer Research RESEARCH Open Access ShRNA-mediated gene silencing of MTA1 influenced on protein expression of ER alpha MMP-9 CyclinD1 and invasiveness proliferation in breast cancer cell lines MDA-MB-231 and MCF-7 in vitro Qingming Jiang Hui Zhang and Ping Zhangt Abstract Background MTA1 metastasis associated-1 is a tumor metastasis associated candidate gene and overexpression in many human tumors including breast cancer. In this study we investigated depressive effect on MTA1 by MTA1-specific short hairpin RNA shRNA expression plasmids in human breast cancer cell lines MDA-MB-231 and MCF-7 and effect on protein levels of ER alpha MMP-9 cyclinD1 and tumor cell invasion proliferation. Methods ShRNA expression vectors targeting MTA1 was constructed and transfected into human breast cancer cell lines MDA-MB-231 and MCF-7. The transfection efficiency was evaluated by fluorescence microscopy mRNA levels of MTA1 were detected by reverse transcription-polymerase chain reaction RT-PCR protein levels of ER alpha MMP-9 and cyclinD1 were detected by Western blotting respectively. Tumor cells invasive ability were evaluated by Boyden chamber assay the cells proliferation were evaluated using cell growth curve and MTT analysis the cell cycle analysis was performed using flow cytometry. Results Down-regulation of MTA1 by RNAi approach led to re-expression of ER alpha in ER-negative breast cancer cell lines MDA-MB-231 and reduced protein levels of MMP-9 and CyclinD1 as well as decreased tumor cell invasion and proliferation more cells were blocked in G0 G1 stage P . However after inhibiting mRNA levels of MTA1 protein expression of ER alpha MMP-9 cyclinD1 and the changes of cancer cells invasiveness proliferation cells cycle were no statistical difference in ER-positive human breast cancer cell lines MCF-7 P . Conclusions ShRNA .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.