PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8352540-0 1993 C-myc expression is down-regulated in mafosfamide-treated HL-60 cells undergoing apoptosis. mafosfamide 38-49 MYC proto-oncogene, bHLH transcription factor Homo sapiens 0-5 8352540-2 1993 Since we have previously shown apoptosis to occur in HL-60 leukemic cells exposed to the prodrug Mafosfamide (ASTA Z 7557), the present study was undertaken to examine the levels of c-myc mRNA transcripts in such cells. mafosfamide 97-108 MYC proto-oncogene, bHLH transcription factor Homo sapiens 182-187 8352540-5 1993 After 6 and 24 hours of Mafosfamide-exposure, however, there was a dose- and time-dependent decrease in c-myc transcripts. mafosfamide 24-35 MYC proto-oncogene, bHLH transcription factor Homo sapiens 104-109 8352540-7 1993 Morphological, biochemical and ultrastructural evidence of apoptosis accompanied the Mafosfamide-induced c-myc mRNA down-regulation at 24 hours. mafosfamide 85-96 MYC proto-oncogene, bHLH transcription factor Homo sapiens 105-110 8352540-8 1993 We conclude that, in the context of Mafosfamide-treated HL-60 cells, upregulation of c-myc mRNA transcription was not fundamental for the activation of the apoptotic cascade. mafosfamide 36-47 MYC proto-oncogene, bHLH transcription factor Homo sapiens 85-90