PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9815771-9 1997 Indeed, only in the subline refractory to topotecan in vivo, IGROV-1/Pt1, did we observe a persistent arrest of the cells in the S-phase, resulting in a cytostatic and not a cytotoxic effect, since a low level of apoptosis was induced by the drug. Topotecan 42-51 zinc finger protein 77 Homo sapiens 61-72