Mitochondria-Endoplasmic Reticulum Contact Sites (MERCS/MAM): Multi-Layered Upstream Regulators of Microglial Senescence in Alzheimer's Disease.
BACKGROUND Alzheimer's disease (AD) is an age-dependent neurodegenerative syndrome in which microglial senescence bridges biological ageing and Aβ-tau pathology. Senescent microglia undergo permanent cell-cycle arrest, upregulate p16INK4a and SA-β-gal, and secrete a pro-inflammatory senescence-associated secretory phen...