PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12605597-4 2003 Indeed, using Jurkat cells as a model system, we demonstrate that NO donors block Fas- and etoposide-induced caspase activation and apoptosis (downstream of mitochondrial membrane depolarization) and cytochrome c release. ammonium ferrous sulfate 82-85 caspase 8 Homo sapiens 109-116