The transcription factor Zfp281 sustains CD4⁺ T lymphocyte activation through directly repressing Ctla-4 transcription.

ABSTRACT: The expression of coinhibitory receptors, such as CTLA-4, on effector T cells is a key mechanism for the negative regulation of T-cell activation. However, the transcriptional regulation of CTLA-4 is not well understood. Zfp281, a C2H2 zinc finger protein, is a negative regulator of pluripotency maintenance of embryonic stem cells. Nevertheless, the function of Zfp281 in differentiated cells has not been studied. We generated Zfp281 conditional knockout mice in which the function of the Zfp281 gene was conditionally disrupted by the Cd4^Cre transgene to study its impact on T cell function. Zfp281 had no effect on T-cell development, but CD4⁺ T cell activation and cytokine production were impaired due to diminished T-cell receptor signaling. Furthermore, Zfp281 deficien

SUBMITTER: Guo J 

PROVIDER: S-EPMC7784856 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature