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Girgin B, Kocabaş F. Newly developed MEIS inhibitor selectively blocks MEIS High prostate cancer growth and induces apoptosis. Gene 2023; 871:147425. [PMID: 37044182 DOI: 10.1016/j.gene.2023.147425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 03/18/2023] [Accepted: 04/07/2023] [Indexed: 04/14/2023]
Abstract
Prostate cancer (PCa) is the second most diagnosed cancer in males. Understanding the molecular mechanism and investigation of novel ways to block PCa growth or metastasis are vital and a medical necessity. In this study, we examined differential expression of MEIS1/2/3 and its associated factors in PCa cell lines. MEIS1/2/3 content, reactive oxygen species, and cell cycle status were analyzed in PCa cells post MEIS inhibitor (MEISi) treatments, which is developed in our laboratory as a first-in-class small molecule inhibitor. A correlation was detected between MEIS content and MEISi IC50 values of PCa cells. MEISi decreased the viability of PC-3, DU145, 22Rv-1 and LNCaP cells, and significantly increased apoptosis in parallel with the increased cellular ROS content. The efficacy of MEISi was shown to positively correlate with the levels of MEIS1/2/3 proteins and the long term exposure to MEISi elevated MEIS1/2/3 protein content in PCa cells. Our findings suggest that MEISi could be used to target PCa with high MEIS expression in order to reduce PCa viability and growth; however, more research is needed before this can be translated into clinical settings.
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Affiliation(s)
- Birkan Girgin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey; Graduate School of Natural and Applied Sciences, Yeditepe University, Istanbul, Turkey; Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Fatih Kocabaş
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey; Graduate School of Natural and Applied Sciences, Yeditepe University, Istanbul, Turkey.
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Lu H, Gomaa A, Wang-Bishop L, Ballout F, Hu T, McDonald O, Washington MK, Livingstone AS, Wang TC, Peng D, El-Rifai W, Chen Z. Unfolded Protein Response Is Activated by Aurora Kinase A in Esophageal Adenocarcinoma. Cancers (Basel) 2022; 14:1401. [PMID: 35326553 PMCID: PMC8946061 DOI: 10.3390/cancers14061401] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/28/2022] [Accepted: 03/04/2022] [Indexed: 12/24/2022] Open
Abstract
Unfolded protein response (UPR) protects malignant cells from endoplasmic reticulum stress-induced apoptosis. We report that Aurora kinase A (AURKA) promotes cancer cell survival by activating UPR in esophageal adenocarcinoma (EAC). A strong positive correlation between AURKA and binding immunoglobulin protein (BIP) mRNA expression levels was found in EACs. The in vitro assays indicated that AURKA promoted IRE1α protein phosphorylation, activating prosurvival UPR in FLO-1 and OE33 cells. The use of acidic bile salts to mimic reflux conditions in patients induced high AURKA and IRE1α levels. This induction was abrogated by AURKA knockdown in EAC cells. AURKA and p-IRE1α protein colocalization was observed in neoplastic gastroesophageal lesions of the L2-IL1b mouse model of Barrett's esophageal neoplasia. The combined treatment using AURKA inhibitor and tunicamycin synergistically induced cancer cell death. The use of alisertib for AURKA inhibition in the EAC xenograft model led to a decrease in IRE1α phosphorylation with a significant reduction in tumor growth. These results indicate that AURKA activates UPR, promoting cancer cell survival during ER stress in EAC. Targeting AURKA can significantly reverse prosurvival UPR signaling mechanisms and decrease cancer cell survival, providing a promising approach for the treatment of EAC patients.
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Affiliation(s)
- Heng Lu
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
| | - Ahmed Gomaa
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
| | - Lihong Wang-Bishop
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235, USA;
| | - Farah Ballout
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
| | - Tianling Hu
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
| | - Oliver McDonald
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
| | - Mary Kay Washington
- Department of Pathology, Vanderbilt University Medical Center, Nashville, TN 37235, USA;
| | - Alan S. Livingstone
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
| | - Timothy C. Wang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA;
| | - Dunfa Peng
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
| | - Wael El-Rifai
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
| | - Zheng Chen
- Department of Surgery, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (H.L.); (A.G.); (F.B.); (T.H.); (A.S.L.); (W.E.-R.)
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