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The molecular inflammatory process in aging
Hae Young Chung1, Bokyung Sung, Kyung Jin Jung
1College of Pharmacy, Pusan National University, Busan, Korea. hyjung@pusan.ac.kr
Antioxidants & Redox Signaling
|May 9, 2006
Summary
Chronic aging diseases are linked to inflammation. This review explores how oxidative stress and specific molecular pathways, like NF-kappaB, drive aging-related inflammation, with calorie restriction showing anti-inflammatory effects.
Area of Science:
- Molecular biology
- Gerontology
- Immunology
Background:
- Major chronic aging diseases share inflammation as a common pathological basis.
- Aging is associated with increased oxidative stress and chronic low-grade inflammation.
Purpose of the Study:
- To examine inflammation as the underlying molecular basis linking aging and age-related diseases.
- To propose the molecular inflammation hypothesis of aging.
Main Methods:
- Review of existing literature on aging, inflammation, and molecular pathways.
- Analysis of redox derangement and oxidative stress in aging.
- Examination of key inflammatory mediators and transcription factors.
Main Results:
- Aging-related oxidative stress activates redox-sensitive transcription factors, leading to dysregulated gene expression.
- Key inflammatory mediators like NF-kappaB, IL-1beta, IL-6, and TNFalpha are upregulated with age.
- Calorie restriction (CR) demonstrates anti-inflammatory efficacy by suppressing these mediators.
Conclusions:
- Inflammation, driven by oxidative stress and specific molecular pathways, is central to aging and age-related diseases.
- NF-kappaB and PPARs play critical roles in regulating inflammatory responses.
- Maintaining a balance between NF-kappaB and PPARs is physiologically significant for healthy aging.