TAILIEUCHUNG - báo cáo khoa học: " Silibinin induces apoptosis via calpain-dependent AIF nuclear translocation in U87MG human glioma cell death"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Silibinin induces apoptosis via calpain-dependent AIF nuclear translocation in U87MG human glioma cell death | Jeong et al. Journal of Experimental Clinical Cancer Research 2011 30 44 http content 30 1 44 Journal of Experimental Clinical Cancer Research RESEARCH Open Access Silibinin induces apoptosis via calpain-dependent AIF nuclear translocation in U87MG human glioma cell death Ji C Jeong1 Won Y Shin1 Thae H Kim2 Chae H Kwon2 Jae H Kim2 Yong K Kim2 and Ki H Kim3 Abstract Background Silibinin a natural polyphenolic flavonoid has been reported to induce cell death in various cancer cell types. However the molecular mechanism is not clearly defined. Our previous study showed that silibinin induces glioma cell death and its effect was effectively prevented by calpain inhibitor. The present study was therefore undertaken to examine the role of calpain in the silibinin-induced glioma cell death. Methods U87MG cells were grown on well tissue culture plates and cell viability was measured by MTT assay. ROS generation and Aym were estimated using the fluorescence dyes. PKC activation and Bax expression were measured by Western blot analysis. AIF nuclear translocation was determined by Western blot and immunocytochemistry. Results Silibinin induced activation of calpain which was blocked by EGTA and the calpain inhibitor Z-Leu-Leu-CHO. Silibinin caused ROS generation and its effect was inhibited by calpain inhibitor the general PKC inhibitor GF 109203X the specific PKCS inhibitor rottlerin and catalase. Silibinin-induce cell death was blocked by calpain inhibitor and PKC inhibitors. Silibinin-induced PKCS activation and disruption of Aym were prevented by the calpain inhibitor. Silibinin induced AIF nuclear translocation and its effect was prevented by calpain inhibitor. Transfection of vector expressing microRNA of AIF prevented the silibinin-induced cell death. Conclusions Silibinin induces apoptotic cell death through a calpain-dependent mechanism involving PKC ROS and AIF nuclear translocation in U87MG human glioma cells. Background Glioblastoma is the most .

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.