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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 

Differential inhibitory effects of CrmA, P35, IAP and three mammalian IAP homologues on apoptosis in NIH3T3 cells following various death stimuli.

We have investigated the effects of expression of the viral proteins CrmA, P35 and IAP, and the three mammalian IAP homologues ( MIHA, MIHB and MIHC), on the regulation of apoptosis induced by either the overexpression of caspases (ICE, CPP32 and Nedd2), by serum-deprivation, or by gamma-irradiation in NIH3T3 fibroblasts. As previously shown, CrmA strongly inhibited ICE-induced apoptosis but was ineffective against Nedd2- or CPP32-mediated apoptosis. P35, IAP and MIHA protected cells from apoptosis induced by the three caspases to varying extents but MIHB and MIHC were largely ineffective. NIH3T3 cells expressing P35 and MIHA, but not IAP, CrmA, MIHB and MIHC, showed enhanced cell survival under serum-deprived conditions. In addition, P35, CrmA and MIHA could provide substantial protection against death induced by gamma-irradiation. These results suggest the presence of multiple apoptotic pathways with differential sensitivity to various naturally occurring apoptosis inhibitors.[1]

References

  1. Differential inhibitory effects of CrmA, P35, IAP and three mammalian IAP homologues on apoptosis in NIH3T3 cells following various death stimuli. Dorstyn, L., Kumar, S. Cell Death Differ. (1997)
 
 
 
 
 
 
 
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