Anja M. Bremer, Kenjiro Sato, Nandini Iyer
This study investigates the intricate mechanisms of epigenetic regulation in leukocytes and its impact on cellular differentiation and immunity. Epigenetic modifications, such as DNA methylation and histone acetylation, are crucial for regulating gene expression without altering the DNA sequence, influencing immune cell function and development. Our objective was to identify specific epigenetic markers that correlate with leukocyte differentiation. We employed bisulfite sequencing and chromatin immunoprecipitation assays on human leukocyte samples obtained from healthy donors (n=50). Our findings revealed significant hypermethylation at the promoter regions of genes associated with T-cell differentiation (p<0.01) and enhanced histone acetylation in genes linked to B-cell lineage commitment (p<0.05). We also observed a correlation between altered methylation patterns and reduced cytokine production, implicating these epigenetic changes in immune response modulation. These results underscore the potential for targeted epigenetic therapies aimed at modulating immune cell differentiation and function. Our study enhances the understanding of epigenetic mechanisms governing leukocyte biology and opens avenues for therapeutic interventions in immune-related disorders.