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Novel PMVs/ZIP4/Zinc/Prelamin A Axis Promotes Nuclear Dysmorphism and Vascular Aging in Humans and Rodents Post-Injury: Effective Treatment With Platelet Membrane-Coated ZIF-8 Nanoparticles - PubMed

2 days ago
  • #zinc deficiency
  • #vascular aging
  • #nuclear dysmorphism
  • Interventional therapy and surgery can cause vascular injury, leading to nuclear dysmorphism and vascular aging.
  • Platelet-derived microvesicles (PMVs) adhere to injured blood vessels, reducing intracellular Zn2+ levels and impairing prelamin A processing.
  • Zinc transporter ZIP4 deficiency contributes to decreased zinc levels, exacerbating nuclear dysmorphism and vascular aging.
  • Zmpste24-deficient mice show increased prelamin A accumulation, nuclear dysmorphism, and vascular aging.
  • Demethylation of genes in Lamina-associated domains (LADs) plays a role in nuclear dysmorphism and cell senescence.
  • Zinc supplementation, especially with platelet membrane-coated Zn-MOF nanoparticles, effectively alleviates these aging effects.