Genomics

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Opposing roles of E2A and Id3 that orchestrate and enforce the naive T cell fate


ABSTRACT: It is established that E2A and its antagonist, Id3, modulate developmental progression at the pre-TCR and TCR checkpoints. Here we show at a global scale how E2A promotes commitment to the T cell lineage and how pre-TCR mediated signalling affects E2A genome-wide occupancy. We find aberrant development of CD4 memory-like and TFH-like cells, T-B cell conjugates and, remarkably, B cell follicles in Id3-/-thymi. We also find that Id3-/-CD4 splenocytes exhibit increased numbers of TFH-like cells. We propose a model in which Id3 modulates the naive versus effector/memory cell fate. Collectively, these data show how E2A acts globally to orchestrate T-lineage development and that Id3 antagonizes E2A activity beyond the pre-TCR checkpoint to enforce the naive T cell fate.

ORGANISM(S): Mus musculus

PROVIDER: GSE30518 | GEO | 2011/07/31

SECONDARY ACCESSION(S): PRJNA143293

REPOSITORIES: GEO

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