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Cho Y, Hwang JW, Park NJ, Moon J, Ali KH, Seo YH, Kim IS, Kim SN, Kim YK. SPC-180002, a SIRT1/3 dual inhibitor, impairs mitochondrial function and redox homeostasis and represents an antitumor activity. Free Radic Biol Med 2023; 208:73-87. [PMID: 37536458 DOI: 10.1016/j.freeradbiomed.2023.07.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/12/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Since sirtuins (SIRTs) are closely associated with reactive oxygen species (ROS) and antioxidant system, the development of their selective inhibitors is drawing attention for understanding of cellular redox homeostasis. Here, we describe the pharmacological properties of SPC-180002, which incorporates a methyl methacrylate group as a key pharmacophore, along with its comprehensive molecular mechanism as a novel dual inhibitor of SIRT1/3. The dual inhibition of SIRT1/3 by SPC-180002 disturbs redox homeostasis via ROS generation, which leads to an increase in both p21 protein stability and mitochondrial dysfunction. Increased p21 interacts with and inhibits CDK, thereby interfering with cell cycle progression. SPC-180002 leads to mitochondrial dysfunction by inhibiting mitophagy, which is accompanied by a reduction in oxygen consumption rate. Consequently, SPC-180002 strongly suppresses the proliferation of cancer cells and exerts anticancer effect in vivo. Taken together, the novel SIRT1/3 dual inhibitor, SPC-180002, impairs mitochondrial function and redox homeostasis, thereby strongly inhibiting cell cycle progression and cancer cell growth.
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Affiliation(s)
- Yena Cho
- Muscle Physiome Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Jee Won Hwang
- Muscle Physiome Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - No-June Park
- Natural Product Research Institute, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea; Division of Bio-Medical Science and Technology, University of Science and Technology KIST School, Seoul, 02792, Republic of Korea
| | - Junghyea Moon
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Khan Hashim Ali
- College of Pharmacy, Keimyung University, Daegu, 42601, Republic of Korea
| | - Young Ho Seo
- College of Pharmacy, Keimyung University, Daegu, 42601, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Su-Nam Kim
- Natural Product Research Institute, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea; Division of Bio-Medical Science and Technology, University of Science and Technology KIST School, Seoul, 02792, Republic of Korea.
| | - Yong Kee Kim
- Muscle Physiome Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea.
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