PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12220664-4 2002 Both ERK and caspase activation were blocked in cells depleted of polyamines by the ornithine decarboxylase inhibitor alpha-difluoromethylornithine (DFMO). Polyamines 66-76 mitogen-activated protein kinase 1 Mus musculus 5-8