Apoptosis induced by cytotoxic cells of the immune system
Demiroglu, Sara Yasemin Intracellular heat shock protein 70 (HSP70) belongs to the stress response system and can protect cells from different apoptotic stimuli. Extracellular HSP70 on the other hand can activate cells of the innate and adaptive immune system. Acute overexpression of intracellular HSP70 could even increase the susceptibility of melanoma cells to cytotoxic T-lymphocytes (CTLs) that use the granule-exocytosis pathway for killing (Dressel et al. 1999). ...