PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21709443-10 2011 These data also suggest the novel finding that the enhanced antitumor activity of topotecan following low-dose exposure correlates to alterations in cell cycle and increased p21 expression. Topotecan 82-91 H3 histone pseudogene 16 Homo sapiens 174-177 9732400-4 1998 Prolonged exposure for 72 hr to high nanomolar to low micromolar concentrations of topotecan augmented p21 protein levels and induced G2/M arrest but failed to consistently alter BCL-2 and BAX protein levels, did not induce significant DNA/topoisomerase I complex formation and did not inhibit RNA synthesis. Topotecan 83-92 H3 histone pseudogene 16 Homo sapiens 103-106 20875401-7 2011 Furthermore, TPT-dependent induction of p53, p21 and apoptosis were found 24-72h after treatment and were increased by PJ34 both in PARP-1 proficient and silenced cells. Topotecan 13-16 H3 histone pseudogene 16 Homo sapiens 45-48