Age-Associated Changes of Sirtuin 2 Expression in CNS and the Periphery

Area of Science:

• Biochemistry
• Gerontology
• Neuroscience

Background:

• Sirtuin 2 (SIRT2) is implicated in aging and age-related diseases.
• SIRT2 exhibits age-related expression changes in humans and animal models.
• Opposing roles of SIRT2 in the brain and periphery during aging are suggested.

Purpose of the Study:

• To review age-related changes in SIRT2 expression.
• To analyze underlying mechanisms affected by SIRT2.
• To evaluate SIRT2's potential as a therapeutic target for age-related diseases.

Main Methods:

• Literature review of studies on SIRT2 and aging.
• Analysis of age-dependent changes in SIRT2 expression.
• Examination of SIRT2's role in neurodegeneration, inflammation, and metabolic diseases.

Main Results:

• Aging increases SIRT2 levels in the brain, suggesting benefits from inhibition in neurodegenerative diseases.
• Aging decreases SIRT2 levels in the periphery, where its maintenance protects against inflammation, insulin resistance, and cardiovascular issues.
• Systemic SIRT2 modulation may yield conflicting therapeutic outcomes due to tissue-specific effects.

Conclusions:

• SIRT2's dual role in aging necessitates cautious therapeutic strategies.
• Understanding tissue-specific SIRT2 regulation is crucial for treating age-related conditions.
• Further research is needed to determine safe and effective pharmacological modulation of SIRT2 for age-related diseases.