| First Author | Carter LL | Year | 1999 |
| Journal | J Exp Med | Volume | 189 |
| Issue | 8 | Pages | 1355-60 |
| PubMed ID | 10209051 | Mgi Jnum | J:331608 |
| Mgi Id | MGI:7388695 | Doi | 10.1084/jem.189.8.1355 |
| Citation | Carter LL, et al. (1999) Lineage-specific requirement for signal transducer and activator of transcription (Stat)4 in interferon gamma production from CD4(+) versus CD8(+) T cells. J Exp Med 189(8):1355-60 |
| abstractText | CD4(+) and CD8(+) T cells exhibit important differences in their major effector functions. CD8(+) T cells provide protection against pathogens through cytolytic activity, whereas CD4(+) T cells exert important regulatory activity through production of cytokines. However, both lineages can produce interferon (IFN)-gamma, which can contribute to protective immunity. Here we show that CD4(+) and CD8(+) T cells differ in their regulation of IFN-gamma production. Both lineages require signal transducer and activator of transcription (Stat)4 activation for IFN-gamma induced by interleukin (IL)-12/IL-18 signaling, but only CD4(+) T cells require Stat4 for IFN-gamma induction via the TCR pathway. In response to antigen, CD8(+) T cells can produce IFN-gamma independently of IL-12, whereas CD4(+) T cells require IL-12 and Stat4 activation. Thus, there is a lineage-specific requirement for Stat4 activation in antigen-induced IFN-gamma production based on differences in TCR signaling between CD4(+) and CD8(+) T cells. |
