Krüppel-like factor 4 regulates T cell function

ABSTRACT: Krüppel-like factor 4 (Klf4), a transcription factor mediating context-dependent activation or repression, plays a key role in maintaining pluripotency of stem cells and in regulating cell differentiation. However, the precise function of Klf4 in T cell development and differentiation is largely unknown. Here we showed that Klf4 was highly expressed in thymocyte subsets and mature T cells, and was rapidly down-regulated in mature T cells after activation. In T cell-specific Klf4 conditional knockout mice, we observed a modest reduction of thymocytes (27%). This was due partly to the loss of Klf4 repression of Cdkn1b expression in thymocytes resulting in decreased proliferation of DN thymocytes. Together, these findings identify Klf4 as a critical regulator in T cell development. Klf4fl/fl

ORGANISM(S): Mus musculus

SUBMITTER: Kevin Becker 

PROVIDER: E-GEOD-24880 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress