Senescent cells drive age-related tissue dysfunction partially through the induction of a chronic senescence-associated secretory phenotype (SASP)1. Mitochondria are major regulators of the SASP; however, the underlying mechanisms have not been elucidated2. Mitochondria are often essential for apoptosis, a cell fate distinct from cellular senescence. During apoptosis, widespread mitochondrial outer membrane permeabilization (MOMP) commits a cell to die3. Here we find that MOMP occurring in a subset of mitochondria is a feature of cellular senescence. This process, called minority MOMP (miMOMP), requires BAX and BAK macropores enabling the release of mitochondrial DNA (mtDNA) into the cytosol. Cytosolic mtDNA in turn activates the cGAS–STING pathway, a major regulator of the SASP. We find that inhibition of MOMP in vivo decreases inflammatory markers and improves healthspan in aged mice. Our results reveal that apoptosis and senescence are regulated by similar mitochondria-depende
Metabolism Assays Market is Expected to Reach $2.1 billion | MarketsandMarkets. sina.com.hk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sina.com.hk Daily Mail and Mail on Sunday newspapers.
/PRNewswire/ In the near future, the metabolism assays industry is poised for remarkable growth and innovation, driven by advancements in biotechnology,.