Work

Mechanism-based inactivators of sirtuin 5: A focused structure–activity relationship study

Year: 2024

Type: article

Abstract: Sirtuin 5 (SIRT5) is a lysine deacylase enzyme that cleaves negatively charged ε-N-acyllysine posttranslational modifications, arising from short dicarboxylic acids. Inhibition of SIRT5 has been suggested as a target for treatment of leukemia and breast cancer. In this work, we performed a focused structure-activity relationship study that identified highly potent inhibitors of SIRT5. Examples of these inhibitors were shown by kinetic evaluation to function as mechanism-based inactivators. Masking of a crucial carboxylate functionality in the inhibitors provided prodrugs, which were demonstrated to bind SIRT5 in cells. This work underscores the importance of kinetic characterization of enzyme inhibitors and provides insights for the further optimization of inhibitors of SIRT5 with potential for in vivo applications.

Source: Bioorganic & Medicinal Chemistry Letters

DOI: 10.1016/j.bmcl.2024.130017

Authors: Tobias N. Hansen, Xinyi Yuan, Marc S. I Santana, Christian A. Olsen

Institution: University of Copenhagen

Language: English

Topic: Sirtuins and Resveratrol in Medicine

Subfield: Geriatrics and Gerontology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $3,770