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Tet2-mediated epigenetic programing of T follicular helper cell differentiation (ChIP-Seq)

ABSTRACT: Tet2-mediated epigenetic programing of T follicular helper cell differentiation (ChIP-Seq)

PROVIDER: PRJNA759917 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15706458_1.fastq.gz	Fastqsanger.gz
	SRR15706458_2.fastq.gz	Fastqsanger.gz
	SRR15706459_1.fastq.gz	Fastqsanger.gz
	SRR15706459_2.fastq.gz	Fastqsanger.gz
	SRR15706460_1.fastq.gz	Fastqsanger.gz

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Project description:Following viral clearance, antigen-specific CD4+ T cells contract and form a pool of distinct Th1 and Tfh memory cells that possess unique epigenetic programs, allowing them to rapidly recall their specific effector functions upon rechallenge. DNA methylation programing mediated by the methylcytosine dioxygenase Tet2 contributes to balancing Th1 and Tfh cell differentiation during acute viral infection, however the role of Tet2 in CD4+ T cell memory formation and recall is unclear. Using adoptive transfer models of antigen-specific WT andTet2KO CD4+ T cells, we find that Tet2 is required for full commitment of CD4+ T cells to the Th1 lineage and that in the absence of Tet2, memory cells preferentially recall a Tfh like phenotype with enhanced expansion upon secondary challenge. These findings demonstrate an important role for Tet2 in enforcing lineage commitment and programing proliferation potential, and highlight the potential of targeting epigenetic programing to enhance adaptive immune responses.

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