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Updated: Sep 16, 2025

Deacetylation Assays to Unravel the Interplay between Sirtuins SIRT2 and Specific Protein-substrates
Published on: February 27, 2016
Sirtuin 3 as a promising target in disease therapy: Model action and drug discovery
1Department of Breast Disease Comprehensive Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China.
Abstract:
Sirtuin 3 (SIRT3) belongs to the Class III histone deacetylase (HDACIII) family and is an enzyme of significant importance in epigenetic regulation. Many studies have demonstrated that the aberrant expression of SIRT3 is closely associated with a variety of diseases, including inflammation, cancer, cardiovascular diseases, and disorders of the central nervous system disorders. SIRT3 is involved in the regulation of multiple intracellular processes, such as cell migration and apoptosis, and thus, has emerged in recent years as a promising therapeutic target for disease treatment. This review first summarizes the structure of SIRT3 and its pharmacological actions, followed by an analysis of the cocrystal structures of representative SIRT3 inhibitors/activators. Subsequently, we focus on the development of SIRT3 modulators (including inhibitors and activators) from a drug-design perspective in recent years. Finally, we present challenges encountered in the discovery of small-molecule modulators targeting SIRT3 and potential future developments.
Insights
Sirtuin 3 (SIRT3) is a key enzyme in epigenetic regulation linked to various diseases. This review explores SIRT3 modulators as promising therapeutic targets for conditions like cancer and cardiovascular disease.
Area of Science:
- Biochemistry
- Molecular Biology
- Pharmacology
Background:
- Sirtuin 3 (SIRT3) is a Class III histone deacetylase (HDACIII) crucial for epigenetic regulation.
- Aberrant SIRT3 expression is implicated in inflammation, cancer, cardiovascular diseases, and central nervous system disorders.
- SIRT3 regulates vital intracellular processes including cell migration and apoptosis, positioning it as a therapeutic target.
Purpose of the Study:
- To review the structure and pharmacological actions of SIRT3.
- To analyze cocrystal structures of SIRT3 inhibitors and activators.
- To discuss the drug design and development of SIRT3 modulators.
Main Methods:
- Literature review of SIRT3 structure, function, and modulators.
- Analysis of cocrystal structures of SIRT3 inhibitors/activators.
- Examination of recent drug design strategies for SIRT3 modulators.
Main Results:
- SIRT3's structure and pharmacological roles are summarized.
- Cocrystal structures reveal insights into inhibitor/activator binding.
- Recent advancements in designing small-molecule SIRT3 modulators are highlighted.
Conclusions:
- SIRT3 modulators represent a promising therapeutic avenue for various diseases.
- Understanding SIRT3 structure-activity relationships is key for drug development.
- Challenges in small-molecule modulator discovery and future directions are presented.
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