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December 8, 2025BloodOpen Access

DNMT1-mediated epigenetic regulation of heterochromatin in cellular aging

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Authors

THTingting Hong

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Overview

Observational analysis reveals DNMT1 regulates DNA methylation impacting senescence in hematopoietic stem cells, highlighting potential therapies.

Key Points

  • Loss of DNMT1 accelerates senescence, leading to increased senescence-associated β-galactosidase activity.
  • Global DNA methylation levels decreased in replication-induced senescent cells, correlating with chromatin changes.
  • Analysis of chromatin reorganization via CUT&Tag demonstrated significant redistribution at genes linked to aging and inflammation.
  • Therapeutic targeting of epigenetic regulators could help reverse age-related hematopoietic decline.

Cite This Study

Tingting Hong (2025) studied this question.

synapsesocial.com/papers/69362f744fa91c937236e249https://doi.org/10.1182/blood-2025-4938
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1DNA Methylation Ageing Atlas Across 17 Human Tissues2025 · 12 citations
  2. 2DNA Methylation Ageing Atlas Across 17 Human Tissues2025 · 3 citations
  3. 3DNMT1-mediated SPINT2 expression drives early senescence by suppressing c-Met signaling in human fibroblasts2025
  4. 4High-throughput single-cell methylation resolves epigenetic states in hematopoietic differentiation and age-related clonal expansions2025
  5. 5DNA methylation landscapes in human cells and their chromatin determinants2025