Mitochondrial function maintenance and mitochondrial training in ageing and related diseases

Abstract

Cellular senescence driven by mitochondrial dysfunction is a key contributor to ageing and related diseases. The decline in the quality and quantity of healthy mitochondria with ageing disrupts energy production, redox homeostasis, and intracellular signaling. Mitochondrial quality control (MQC) is a cellular self-repair mechanism that protects mitochondrial function and maintains a healthy mitochondrial network. Targeted regulation of MQC is expected to moderate the development of cellular senescence and related diseases. We explored the impact of mitochondrial function on cell fate at the molecular and organelle levels, analyzed the role of mitochondria-targeted interventions for delaying cellular senescence and ameliorating age-related diseases, and pointed out the idea of increasing the critical level of healthy mitochondria to cope with internal and external stressful stimuli and to improve the ability of self-repairing by exercising and protecting mitochondria in the long term.