Abstract:
:A1, a bcl-2 family member, has been identified as a hematopoietic-specific, early inducible gene. In this study it is shown that stable transfection of A1 into an interleukin-3 (IL-3)-dependent myeloid precursor cell line, 32D c13, leads to a retardation of IL-3 withdrawal-induced cell death similar to that observed with transfection of bcl-2. However, unlike bcl-2. A1 expression permits the accumulation of differentiated myeloid cells both before and after IL-3 withdrawal. Total cell accumulation, on the other hand, is considerably greater after IL-3 deprivation in the bcl-2 transfectant than in A1-expressing cells. Cells cotransfected with the two genes behave similarly to cells singly transfected with bcl-2, except that viability following IL-3 withdrawal is somewhat further enhanced. These results suggest that these two proteins have distinct roles that may be related to the divergent regulation of their expression during myeloid differentiation.
journal_name
Bloodjournal_title
Bloodauthors
Lin EY,Orlofsky A,Wang HG,Reed JC,Prystowsky MBsubject
Has Abstractpub_date
1996-02-01 00:00:00pages
983-92issue
3eissn
0006-4971issn
1528-0020journal_volume
87pub_type
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