JANČEKOVÁ, Blanka, Petr BENEŠ, Eva ONDROUŠKOVÁ and Jan ŠMARDA. OVEREXPRESSION OF CATHEPSIN D SENZITIZES BREAST CANCER CELLS TO TRAIL-INDUCED APOPTOSIS. In 19th Euroconference on Apoptosis , Stockholm, Sweden, 2011. 2011.
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Basic information
Original name OVEREXPRESSION OF CATHEPSIN D SENZITIZES BREAST CANCER CELLS TO TRAIL-INDUCED APOPTOSIS
Authors JANČEKOVÁ, Blanka (203 Czech Republic), Petr BENEŠ (203 Czech Republic), Eva ONDROUŠKOVÁ (203 Czech Republic, belonging to the institution) and Jan ŠMARDA (203 Czech Republic, guarantor, belonging to the institution).
Edition 19th Euroconference on Apoptosis , Stockholm, Sweden, 2011, 2011.
Other information
Original language English
Type of outcome Conference abstract
Field of Study Genetics and molecular biology
Country of publisher Sweden
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/11:00049487
Organization unit Faculty of Science
Keywords in English apoptosis; TRAIL; cathepsin D; breast cancer
Changed by Changed by: prof. RNDr. Jan Šmarda, CSc., učo 1223. Changed: 21/11/2011 07:33.
Abstract
Breast cancer cells overexpressing cathepsin D wt and mut were exposed to TRAIL and frequency of apoptosis was determined by chromatin condensation, nuclear fragmentation, cleavage of PARP, and externalization of phosphatidylserine. An increased frequency of apoptosis in cells over-expressing wt but not mut CTSD was clearly demonstrated. Increased frequency of apoptosis observed in wt CTSD cells corresponded to cleavage of the pro-apoptotic Bcl-2 family member, the Bid protein, that was earlier identified as one of the targets of CTSD in cancer cells. We conclude that CTSD sensitizes MDA-MB-231 cells to the TRAIL-induced apoptosis in enzymatic activity-dependent manner and that the TRAIL-induced apoptosis is potentiated by the CTSD-mediated activation of Bid, the pro-apoptotic member of the Bcl-2 family.
Links
GA301/09/1115, research and development projectName: Úloha proteinů c-Myb a Cox-2 při tvorbě střevních nádorů
Investor: Czech Science Foundation, The role of c-Myb and Cox-2 proteins in colon carcinogenesis
GD204/08/H054, research and development projectName: Molekulární mechanismy proliferace a diferenciace buněk
Investor: Czech Science Foundation, Molecular mechanisms of the cell proliferation and differentiation
IAA501630801, research and development projectName: Mechanismus účinku prokatepsinu D na buňky rakoviny prsu
Investor: Academy of Sciences of the Czech Republic, Mechanism of procathepsin D effect on breast cancer cells
MSM0021622415, plan (intention)Name: Molekulární podstata buněčných a tkáňových regulací
Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations
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