Abstract：
:Cells with a temperature-sensitive mutant of the v-abl oncoprotein (IC.DP) were treated with the anticancer drugs melphalan or hydroxyurea. At the restrictive temperature for v-ABL protein tyrosine kinase activity, drug-treated IC.DP cells died by apoptosis. In contrast, apoptotic cell death induced by either drug was suppressed when v-ABL was active. However, melphalan-induced accumulation of cells in the S and G2-M phases of the cell cycle was unaffected by v-ABL activation. Moreover, the continuous presence of v-ABL activity was necessary to suppress apoptosis. This suggested that melphalan had interacted with DNA and that v-ABL activity prevented the coupling of drug-induced damage to the apoptotic pathway. IC.DP cells exhibited similar levels and subcellular localization of the BCL-2 protein irrespective of v-ABL activation status, thus v-ABL-mediated cell survival appeared to be independent of BCL-2.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Chapman RS,Whetton AD,Dive Csubject
Has Abstractpub_date
1994-10-01 00:00:00pages
5131-7issue
19eissn
0008-5472issn
1538-7445journal_volume
54pub_type
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