Diagenode

Zinc finger protein Zfp335 is required for the formation of the naïve T cell compartment


Han BY, Wu S, Foo C-S, Horton RM, Jenne CN, Watson SR, Whittle B, Goodnow CC, Cyster JG

The generation of naïve T lymphocytes is critical for immune function yet the mechanisms governing their maturation remain incompletely understood. We have identified a mouse mutant, bloto, that harbors a hypomorphic mutation in the zinc finger protein Zfp335. Zfp335bloto/bloto mice exhibit a naïve T cell deficiency due to an intrinsic developmental defect that begins to manifest in the thymus and continues into the periphery, affecting T cells that have recently undergone thymic egress. The effects of Zfp335bloto are multigenic and cannot be attributed to altered thymic selection, proliferation or Bcl2-dependent survival. Zfp335 binds to promoter regions via a consensus motif, and its target genes are enriched in categories related to protein metabolism, mitochondrial function, and transcriptional regulation. Restoring the expression of one target, Ankle2, partially rescues T cell maturation. These findings identify Zfp335 as a transcription factor and essential regulator of late-stage intrathymic and post-thymic T cell maturation. - See more at: http://elifesciences.org/content/3/e03549#api_box

Tags
Bioruptor
Chromatin Shearing
ChIP-seq

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Published
October, 2014

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