期刊
FEBS LETTERS
卷 465, 期 1, 页码 47-52出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0014-5793(99)01702-0
关键词
apoptosis; phosphatidyl serine; mitochondrial transmembrane potential
Time kinetics of phosphatidyl serine (PS) exposure were compared to other apoptotic parameters following different apoptotic stimuli, Our data indicate that anti-Fas treatment of L929sAhFas cells results in rapid exposure of PS, which precedes decrease in mitochondrial transmembrane potential (Delta Psi(m)) and release of cytochrome c, indicating that PS exposure occurs independently of these mitochondrial events. Also during TNF-, etoposide- or staurosporine-mediated apoptosis in PC60 RI/RII cells, PS-positive cells were observed before they had a decreased Delta Psi(m). However, during growth factor depletion-induced death of 32D cells, both phenomena seemed to occur at the same time. (C) 2000 Federation of European Biochemical Societies.
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