| First Author | Wang L | Year | 2008 |
| Journal | Immunity | Volume | 29 |
| Issue | 6 | Pages | 876-87 |
| PubMed ID | 19062319 | Mgi Jnum | J:142681 |
| Mgi Id | MGI:3821949 | Doi | 10.1016/j.immuni.2008.09.019 |
| Citation | Wang L, et al. (2008) The zinc finger transcription factor Zbtb7b represses CD8-lineage gene expression in peripheral CD4+ T cells. Immunity 29(6):876-87 |
| abstractText | How CD4-CD8 differentiation is maintained in mature T cells is largely unknown. The present study has examined the role in this process of the zinc finger protein Zbtb7b, a critical factor for the commitment of MHC II-restricted thymocytes to the CD4+ lineage. We showed that Zbtb7b acted in peripheral CD4+ T cells to suppress CD8-lineage gene expression, including that of CD8 and cytotoxic effector genes perforin and Granzyme B, and was important for the proper repression of interferon-gamma (IFN-gamma) during effector differentiation. The inappropriate expression of IFN-gamma by Zbtb7b-deficient CD4+ T cells required the activities of Eomesodermin and Runx transcription factors. Runx activity was needed for Granzyme B expression, indicating that Runx proteins control expression of the cytotoxic program. We conclude that a key function of Zbtb7b in the mature CD4+ T cell compartment is to repress CD8-lineage gene expression. |
