PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25621996-10 2015 At the end of 131I therapy, CNE-2Z-NIS xenograft tumor cells expressed higher levels of NIS and caspase-3 and lower levels of Ki-67. Nickel 35-38 caspase 3 Homo sapiens 96-105