期刊
CELLS
卷 10, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/cells10112974
关键词
aging; immune cells; oxidative stress; inflammatory stress; biological age
类别
资金
- FIS [PI15/01787]
- ISCIII-FEDER of the European Union
- Universidad Complutense Madrid (UCM) Research Group
Aging is a result of deteriorating homeostatic systems, where chronic oxidative stress and inflammation play crucial roles. The weakening immune system can be used as an indicator of an individual's rate of aging. Lifestyle conditions like social environment, nutrition, and exercise can impact longevity by affecting immune cell function and contributing to oxidative and inflammatory stress.
Aging is the result of the deterioration of the homeostatic systems (nervous, endocrine, and immune systems), which preserve the organism's health. We propose that the age-related impairment of these systems is due to the establishment of a chronic oxidative stress situation that leads to low-grade chronic inflammation throughout the immune system's activity. It is known that the immune system weakens with age, which increases morbidity and mortality. In this context, we describe how the function of immune cells can be used as an indicator of the rate of aging of an individual. In addition to this passive role as a marker, we describe how the immune system can work as a driver of aging by amplifying the oxidative-inflammatory stress associated with aging (oxi-inflamm-aging) and inducing senescence in far tissue cells. Further supporting our theory, we discuss how certain lifestyle conditions (such as social environment, nutrition, or exercise) can have an impact on longevity by affecting the oxidative and inflammatory state of immune cells, regulating immunosenescence and its contribution to oxi-inflamm-aging.
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