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Showing posts with the label Chromatin Dynamics

Epigenetic Control of Cell Identity in Aging and Regenerative Processes

Cellular identity reprogramming represents a coordinated biological process in which somatic cells undergo transcriptional, epigenetic, and metabolic restructuring driven by integrated regulatory networks. Master regulators such as TP53 help preserve genomic integrity during state transitions, limiting mutation accumulation and supporting cellular stability throughout chromatin remodeling, transcriptional rewiring, and signaling adaptation events. Epigenetic regulation during cellular reprogramming is strongly influenced by DNA methylation maintenance systems controlled by DNMT1 , which preserve gene expression patterns across cell divisions while supporting controlled epigenetic resetting. These mechanisms contribute to lineage plasticity, chromatin remodeling, transcriptional network reconfiguration, and enhancer regulation, helping maintain balanced identity transitions under diverse biological conditions. Active DNA demethylation processes regulated by TET2 enable remova...