Oxidative stress, inflamm-aging and immunosenescence
Elvira S Cannizzo1, Cristina C Clement, Ranjit Sahu
1Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Journal of Proteomics
|July 2, 2011
Summary
Aging immune systems (immunosenescence) show reduced responses to new threats and self-tolerance. This review explores how oxidative stress and protein oxidation impair immune cell function and drive chronic inflammation (inflamm-aging).
Area of Science:
- Immunology
- Gerontology
- Molecular Biology
Background:
- Immunosenescence, the aging of the immune system, impairs responses to foreign antigens and self-tolerance.
- This decline increases susceptibility to infections, cancer, and reduces vaccine efficacy.
- The molecular mechanisms of immunosenescence are complex and not fully understood.
Purpose of the Study:
- To review the role of oxidative stress in immunosenescence.
- To examine how protein oxidation affects immune cell functionality.
- To explore the contribution of oxidative stress to inflamm-aging.
Main Methods:
- Literature review focusing on oxidative stress and immunosenescence.
- Analysis of molecular and cellular events.
- Examination of protein oxidation's impact on immune cells.
Main Results:
- Oxidative stress significantly alters immune cell function.
- Protein oxidation is a key mechanism in immunosenescence.
- Oxidative stress contributes to the chronic inflammatory state known as inflamm-aging.
Conclusions:
- Oxidative stress is a critical factor in immune system aging.
- Understanding these mechanisms can inform strategies to combat age-related immune decline.
- Targeting oxidative stress may mitigate inflamm-aging and its consequences.
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