Synapse
⌘+K
Synapse
PulseExploreJournal ClubResearchersJournals
Instagram
HomeJournal ClubExplore
December 8, 2025BloodOpen Access

DNMT1-mediated epigenetic regulation of heterochromatin in cellular aging

View Full Paper
Ask AI
Bookmark
Share

Authors

THTingting Hong

Discussion

Loading...

Member takes

Overview

In vitro study reveals dnmt1's role in dna methylation and chromatin remodeling during cellular aging, suggesting therapeutic targeting.

Key Points

  • This research aims to explore the role of DNMT1-mediated DNA methylation in cellular aging and heterochromatin regulation.
  • In vitro replication-dependent senescence model used with human primary fibroblasts.
  • DNA methylation was perturbed by inhibiting or overexpressing DNMT1 in early and late-passage cells.
  • SAHF formation and senescence-associated phenotypes were assessed along with DNA methylation profiling.
  • DNMT1 expression significantly declines during cellular replication.
  • Loss of DNMT1 accelerates senescence, indicated by increased SA-β-gal activity.
  • Overexpression of DNMT1 in late-passage cells restores replication capability and reduces senescence-associated phenotypes.

Cite This Study

Tingting Hong (2025) studied this question.

synapsesocial.com/papers/69362f744fa91c937236e249https://doi.org/10.1182/blood-2025-4938
View Full Paper
Ask AI
Bookmark
Share