Inflammaging - contributing mechanisms and cellular signaling pathways

Area of Science:

• Gerontology and Molecular Biology
• Immunology and Inflammation Research

Background:

• Aging is a complex process involving molecular, cellular, and tissue changes.
• Inflammaging, a chronic, sterile, low-grade inflammation, is a hallmark of aging.
• This condition is linked to increased morbidity, mortality, and reduced quality of life in the elderly.

Purpose of the Study:

• To elucidate the molecular processes and signaling pathways implicated in inflammaging.
• To review the interplay between cellular senescence, inflammasome activation, and other aging-related dysfunctions.
• To consolidate findings from clinical and experimental studies on inflammaging.

Main Methods:

• Review of existing literature on aging, inflammation, and cellular senescence.
• Analysis of molecular mechanisms including inflammasome activation, mitochondrial dysfunction, and DNA damage response.
• Examination of key signaling pathways (NF-kB, mTOR, etc.) and sirtuin activity.

Main Results:

• Cell senescence, impaired autophagy, and DNA damage response contribute to inflammaging.
• Dysregulation of inflammasome activation and mitochondrial function are critical.
• Signaling pathways such as NF-kB, mTOR, and TGF-b modulate the inflammatory response in aging.

Conclusions:

• Inflammaging is a significant risk factor for age-related and other chronic diseases.
• Interactions between cellular aging processes and inflammatory signaling pathways drive inflammaging.
• Targeting these pathways offers potential therapeutic strategies for age-related conditions.