|
1
|
Kim SJ, Cho NC, Han B, Kim K, Hahn YI, Kim KP, Suh YG, Choi BY, Na HK, Surh YJ. 15-Deoxy-Δ 12,14 -prostaglandin J 2 binds and inactivates STAT3 via covalent modification of cysteine 259 in H-Ras-transformed human breast epithelial cells. FEBS Lett 2021; 595:604-622. [PMID: 33452674 DOI: 10.1002/1873-3468.14040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 01/02/2023]
Abstract
Signal transducer and activator of transcription 3 (STAT3) has been considered as a potential target for development of anticancer therapeutics. Here, we report a novel mechanism by which the cyclopentenone prostaglandin, 15-deoxy-Δ12,14 -prostaglandin J2 (15d-PGJ2 ) functions as an allosteric inhibitor of STAT3. 15d-PGJ2 inhibits phosphorylation, dimerization, nuclear translocation, and transcriptional activity of STAT3 in H-Ras-transformed human mammary epithelial cells (MCF10A-Ras) through the Michael addition reaction at cysteine 259 of STAT3. Comparative studies with 15d-PGJ2 analogues reveal that both C12-C13 and C9-C10 double bonds conjugated to the carbonyl group in the cyclopentenone ring of 15d-PGJ2 are essential for STAT3 binding. Antiproliferative and pro-apoptotic activities of 15d-PGJ2 in MCF10A-Ras cells are attributable to covalent modification of STAT3 on Cys259, and mimic the effects induced by mutation of this amino acid.
Collapse
Affiliation(s)
- Su-Jung Kim
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Korea
| | - Nam-Chul Cho
- Center for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Korea
| | - Bitnara Han
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient Materials, Kyung Hee University, Yongin, Korea
| | - Kyeojin Kim
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Korea
| | - Young-Il Hahn
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient Materials, Kyung Hee University, Yongin, Korea.,Department of Biomedical Science and Technology, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Korea
| | - Young Ger Suh
- College of Pharmacy, CHA University, Gyeonggi-do, Korea
| | - Bu Young Choi
- Department of Pharmaceutical Science and Engineering, School of Convergence Bioscience and Technology, Seowon University, Chungbuk, Korea
| | - Hye-Kyung Na
- Department of Food Science and Biotechnology, College of Knowledge Based Services Engineering, Sungshin Women's University, Seoul, Korea
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Korea.,Cancer Research Institute, Seoul National University, Korea
| |
Collapse
|
|
2
|
Agnew-Francis KA, Williams CM. Squaramides as Bioisosteres in Contemporary Drug Design. Chem Rev 2020; 120:11616-11650. [DOI: 10.1021/acs.chemrev.0c00416] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kylie A. Agnew-Francis
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| |
Collapse
|