Cellular allostatic load is linked to increased energy expenditure and accelerated biological aging
Bobba-Alves N, Sturm G, Lin J, Ware S, Karan K, Monzel A, Bris C, Procaccio V, Lenaers G, Higgins-Chen A, Levine M, Horvath S, Santhanam B, Kaufman B, Hirano M, Epel E, Picard M. Cellular allostatic load is linked to increased energy expenditure and accelerated biological aging. Psychoneuroendocrinology 2023, 155: 106322. PMID: 37423094, PMCID: PMC10528419, DOI: 10.1016/j.psyneuen.2023.106322.Peer-Reviewed Original ResearchConceptsCellular agingCellular energy expenditureDNA methylation clockMitochondrial oxidative phosphorylationStress adaptationMtDNA instabilityOXPHOS activityMethylation clockOxidative phosphorylationMetabolic shiftEnergetic costHuman fibroblast lineCellular basisPhysiological responsesFibroblast linesStress triggersPotential driversBiological agingEnergy expenditureChronic activationLifespanDamaging effectsPrimary human fibroblast linesCytokine secretionPhosphorylation