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Yang F, Su H, Deng J, Mou L, Wang H, Li R, Dai QQ, Yan YH, Qian S, Wang Z, Li GB, Yang L. Discovery of new human Sirtuin 5 inhibitors by mimicking glutaryl-lysine substrates. Eur J Med Chem 2021; 225:113803. [PMID: 34461505 DOI: 10.1016/j.ejmech.2021.113803] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 11/28/2022]
Abstract
Human sirtuin 5 (SIRT5) plays pivotal roles in metabolic pathways and other biological processes, and is involved in several human diseases including cancer. Development of new potent and selective SIRT5 inhibitors is currently desirable to provide potential therapeutics for related diseases. Herein, we report a series of new 3-thioureidopropanoic acid derivatives, which were designed to mimic the binding features of SIRT5 glutaryl-lysine substrates. Structure-activity relationship studies revealed several compounds with low micromolar inhibitory activities to SIRT5. Computational and biochemical studies indicated that these compounds exhibited competitive SIRT5 inhibition with respect to the glutaryl-lysine substrate rather than nicotinamide adenine dinucleotide cofactor. Moreover, they showed high selectivity for SIRT5 over SIRT1-3 and 6 and could stabilize SIRT5 proteins as revealed by thermal shift analyses. This work provides an effective substrate-mimicking strategy for future inhibitor design, and offers new inhibitors to investigate their therapeutic potentials in SIRT5-associated disease models.
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Affiliation(s)
- Fan Yang
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, China
| | - Huilin Su
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, China
| | - Ji Deng
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Luohe Mou
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, China
| | - Huali Wang
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Rong Li
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, China
| | - Qing-Qing Dai
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yu-Hang Yan
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Shan Qian
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, China
| | - Zhouyu Wang
- College of Science, Xihua University, Sichuan, 610039, China
| | - Guo-Bo Li
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Lingling Yang
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, China.
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