TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Klett, M. V. A1 - Boneberg, E-M A1 - Trenz, K. A1 - Knippers, R. A1 - Illges, H. T1 - Hydrostatic pressure induces apoptosis in the human leukaemic T-cell line Jurkat via the mitochondrial pathway JF - Scand J Immunol. (Scandinavian Journal of Immunology) N2 - We investigated the effect of pressure levels ranging from 80 to 500 bar on the proliferative capacity and viability of Jurkat leukaemic T cells. Pressurization at 360 bar induced apoptotic cell death as shown by apoptotic morphology after Hoechst staining, DNA fragmentation in the TdT-mediated dUTP nick end labelling-assay and cleavage of several caspase substrates. Cell death could be prevented by the general caspase inhibitor zVAD-fmk. Breakdown of the mitochondrial membrane potential and the release of cytochrome c provided strong evidence for an involvement of the mitochondrial pathway, whereas a central role of the death receptor pathway was excluded because caspase-8 was not significantly activated. Pressure incubation led to calcium influx after 5 min, and we hypothesize that calcium influx could be the primary trigger for pressure-induced apoptosis. SN - 0300-9475 SS - 0300-9475 U6 - https://doi.org/10.1111/j.0300-9475.2004.01496.x DO - https://doi.org/10.1111/j.0300-9475.2004.01496.x PM - 15379865 VL - 60 IS - 4 SP - 403 EP - 411 PB - Blackwell Publishing ER -