Comparative analysis of the DNA methylation landscape in CD4, CD8, and B memory lineages

Author:

Zhang ZeORCID,Butler RondiORCID,Koestler Devin C.ORCID,Bell-Glenn Shelby,Warrier Gayathri,Molinaro Annette M.ORCID,Christensen Brock C.ORCID,Wiencke John K.ORCID,Kelsey Karl T.ORCID,Salas Lucas A.ORCID

Abstract

Abstract Background There is considerable evidence that epigenetic mechanisms and DNA methylation are critical drivers of immune cell lineage differentiation and activation. However, there has been limited coordinated investigation of common epigenetic pathways among cell lineages. Further, it remains unclear if long-lived memory cell subtypes differentiate distinctly by cell lineages. Results We used the Illumina EPIC array to investigate the consistency of DNA methylation in B cell, CD4 T, and CD8 T naïve and memory cells states. In the process of naïve to memory activation across the three lineages, we identify considerable shared epigenetic regulation at the DNA level for immune memory generation. Further, in central to effector memory differentiation, our analyses revealed specific CpG dinucleotides and genes in CD4 T and CD8 T cells with DNA methylation changes. Finally, we identified unique DNA methylation patterns in terminally differentiated effector memory (TEMRA) CD8 T cells compared to other CD8 T memory cell subtypes. Conclusions Our data suggest that epigenetic alterations are widespread and essential in generating human lymphocyte memory. Unique profiles are involved in methylation changes that accompany memory genesis in the three subtypes of lymphocytes.

Funder

NIH

Department of Defense

NIGMS

American Association for Cancer Research

NCI

Magnin Newman Endowment for Neuro-oncology

Publisher

Springer Science and Business Media LLC

Subject

Genetics (clinical),Developmental Biology,Genetics,Molecular Biology

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