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Mitochondria and Organismal Longevity

Mitochondria are essential for various biological processes including cellular energy production. The oxidative stress theory of aging proposes that mitochondria play key roles in aging by generating reactive oxygen species (ROS), which indiscriminately damage macromolecules and lead to an age-depen...

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Detalles Bibliográficos
Autores principales: Hwang, Ara B, Jeong, Dae-Eun, Lee, Seung-Jae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Bentham Science Publishers 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3468885/
https://www.ncbi.nlm.nih.gov/pubmed/23633912
http://dx.doi.org/10.2174/138920212803251427
Descripción
Sumario:Mitochondria are essential for various biological processes including cellular energy production. The oxidative stress theory of aging proposes that mitochondria play key roles in aging by generating reactive oxygen species (ROS), which indiscriminately damage macromolecules and lead to an age-dependent decline in biological function. However, recent studies show that increased levels of ROS or inhibition of mitochondrial function can actually delay aging and increase lifespan. The aim of this review is to summarize recent findings regarding the role of mitochondria in organismal aging processes. We will discuss how mitochondria contribute to evolutionarily conserved longevity pathways, including mild inhibition of respiration, dietary restriction, and target of rapamycin (TOR) signaling.