Transcriptomics

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Rbpj expression in regulatory T cells is critical for restraining TH2 responses

ABSTRACT: This SuperSeries is composed of the SubSeries listed below. The transcriptional regulator Rbpj is involved in T-helper (TH) subset polarization, but its function in Treg cells remains unclear. Here we show that Treg-specific Rbpj deletion leads to splenomegaly and lymphadenopathy despite increased numbers of Treg cells with a polyclonal TCR repertoire. A specific defect of Rbpj-deficient Treg cells in controlling TH2 polarization and B cell responses is observed, leading to the spontaneous formation of germinal centers and a TH2-associated immunoglobulin class switch. The observed phenotype is environment-dependent and can be induced by infection with parasitic nematodes. Rbpj-deficient Treg cells adopt open chromatin landscapes and gene expression profiles reminiscent of tissue-derived TH2-polarized Treg cells, with a prevailing footprint of the transcription factor Gata-3. Taken together, our study suggest that Treg cells require Rbpj to specifically restrain TH2 responses, including their own excessive TH2-like differentiation potential.

ORGANISM(S): Mus musculus

PROVIDER: GSE119169 | GEO | 2019/01/31

REPOSITORIES: GEO

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