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Updated: May 29, 2026

Deacetylation Assays to Unravel the Interplay between Sirtuins (SIRT2) and Specific Protein-substrates
Published on: February 27, 2016
Sirtuin modulators
Sumit S Mahajan1, Vid Leko, Julian A Simon
1Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
Abstract:
Members of the sirtuin family including the founding protein Sir2 in Saccharomyces cerevisiae have been linked to lifespan extension in simple organisms. This finding prompted evaluation of the role of Sir2 orthologues in many aging-associated conditions including neurodegeneration, type II diabetes and cancer. These studies have demonstrated that genetic and pharmacologic manipulation of sirtuin activity have beneficial effects in a surprisingly broad spectrum of aging-associated conditions suggesting that the Sir2-family of enzymes presents an attractive target for the development of pharmacological agents. While the initial model favored pharmacological activators of sirtuins as calorie restriction mimetics, it now appears that either activation or inhibition of sirtuins may be desirable for ameliorating disease depending on the pathological condition and the target tissue. In this chapter we review the development of pharmacological small molecule activators and inhibitors of the sirtuin family of enzymes.
Insights
Sirtuin enzymes, like Sir2, extend lifespan in simple organisms. Research now explores sirtuin activators and inhibitors for treating diverse age-related diseases, offering new therapeutic targets.
Area of Science:
- Biochemistry
- Molecular Biology
- Gerontology
Background:
- Sirtuin proteins, including the founding Sir2 in yeast, are associated with lifespan extension in simple organisms.
- This link has spurred research into sirtuin orthologues' roles in aging-related conditions such as neurodegeneration, type II diabetes, and cancer.
Purpose of the Study:
- To review the development of pharmacological small molecule activators and inhibitors targeting the sirtuin family of enzymes.
- To highlight sirtuins as attractive targets for developing therapeutic agents for aging-associated diseases.
Main Methods:
- Review of existing literature on sirtuin research.
- Analysis of studies investigating genetic and pharmacologic manipulation of sirtuin activity.
- Examination of the development of small molecule modulators (activators and inhibitors) of sirtuins.
Main Results:
- Genetic and pharmacologic manipulation of sirtuin activity shows beneficial effects across a wide range of aging-associated conditions.
- The role of sirtuin manipulation (activation vs. inhibition) is context-dependent, varying with the specific disease and target tissue.
- Small molecule activators and inhibitors of sirtuins have been developed.
Conclusions:
- Sirtuin enzymes represent a promising target for pharmacological interventions in aging-related diseases.
- Therapeutic strategies may involve either activating or inhibiting sirtuin activity, depending on the specific condition.
- The development of small molecule modulators offers potential for novel treatments for age-associated pathologies.
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