Action Mechanisms of Small Extracellular Vesicles in Inflammaging.

Area of Science:

• Gerontology
• Cell Biology
• Immunology

Background:

• Inflammaging, characterized by chronic low-grade inflammation, is a hallmark of aging.
• This process impacts intercellular communication and contributes to age-related diseases.
• Small extracellular vesicles (sEVs) are emerging as key mediators in inflammaging.

Purpose of the Study:

• To review the recent literature on the role of sEVs in inflammaging.
• To explore the therapeutic potential of targeting sEVs for age-related conditions.
• To discuss senodrugs (senolytics and senomorphic) as a novel therapeutic strategy.

Main Methods:

• Literature review of recent studies on sEVs and inflammaging.
• Analysis of sEV components and mechanisms of action.
• Examination of sEVs' involvement in age-related diseases like cancer and type 2 diabetes.

Main Results:

• sEVs are confirmed mediators of paracrine senescence in inflammaging.
• sEVs transmit inflammatory signals, influencing intercellular communication.
• The components and functions of sEVs are critical for understanding and treating age-related diseases.

Conclusions:

• sEVs play a pivotal role in the biological process of inflammaging.
• Targeting sEVs offers a promising avenue for developing senodrugs.
• Understanding sEVs is crucial for combating age-related diseases and promoting healthy aging.