First Author | Linette GP | Year | 1996 |
Journal | Proc Natl Acad Sci U S A | Volume | 93 |
Issue | 18 | Pages | 9545-52 |
PubMed ID | 8790367 | Mgi Jnum | J:153272 |
Mgi Id | MGI:4361811 | Doi | 10.1073/pnas.93.18.9545 |
Citation | Linette GP, et al. (1996) Cross talk between cell death and cell cycle progression: BCL-2 regulates NFAT-mediated activation. Proc Natl Acad Sci U S A 93(18):9545-52 |
abstractText | BCL-2-deficient T cells demonstrate accelerated cell cycle progression and increased apoptosis following activation. Increasing the levels of BCL-2 retarded the G0-->S transition, sustained the levels of cyclin-dependent kinase inhibitor p27Kip1, and repressed postactivation death. Proximal signal transduction events and immediate early gene transcription were unaffected. However, the transcription and synthesis of interleukin 2 and other delayed early cytokines were markedly attenuated by BCL-2. In contrast, a cysteine protease inhibitor that also blocks apoptosis had no substantial affect upon cytokine production. InterleUkin 2 expression requires several transcription factors of which nuclear translocation of NFAT (nuclear factor of activated T cells) and NFAT-mediated transactivation were impaired by BCL-2. Thus, select genetic aberrations in the apoptotic pathway reveal a cell autonomous coregulation of activation. |