Mitochondria and brain aging: From cell-specific dysfunction to intercellular cooperation.

Mitochondrial dysfunction across diverse brain cell types accelerates aging, with evidence showing impairments in neurons, glia, and vascular cells contributing to cognitive decline.

• Why it matters: Understanding how mitochondria influence brain aging is crucial because their decline affects multiple cell types, yet most research has focused mainly on neurons, leaving gaps in comprehensive therapeutic strategies.
• What they did: The review synthesizes recent findings on cell-specific mitochondrial impairments, subcellular changes, and intercellular mitochondrial transfer, alongside clinical trials testing mitochondria-targeted therapies.
• The result: These insights position mitochondria as central to brain aging, paving the way for novel interventions that could preserve cognitive function and combat neurodegeneration in older adults.