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Sahin K, Orhan C, Ozercan IH, Tuzcu M, Elibol B, Sahin TK, Kilic U, Qazi S, Uckun FM. Chemopreventive efficacy of stampidine in a murine breast cancer model. Expert Opin Ther Targets 2020; 24:155-162. [PMID: 32005098 DOI: 10.1080/14728222.2020.1724961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Background: The purpose of the present study was to examine the chemopreventive effect of stampidine, an aryl phosphate derivative of stavudine, in side by side comparison with the standard anti-breast cancer drug paclitaxel in the well-established 7,12-dimethylbenz(a)anthracene (DMBA)-induced murine breast cancer model.Methods: Groups of 20 female mice were challenged with the DMBA. DMBA-challenged mice were assigned to various chemoprevention treatments, including stampidine, paclitaxel, and stampidine plus paclitaxel according to the same treatment schedules for 25 weeks.Results: Stampidine resulted in substantially reduced numbers of tumors, tumor weight as well as tumor size in DMBA-treated mice. Stampidine was as effective as paclitaxel in the model and their combination exhibited greater chemopreventive activity, as measured by reduced tumor incidence and improved tumor-free survival as well as overall survival of DMBA-treated mice. The length of time for the initial tumor to appear in DMBA-challenged mice treated with stampidine was longer than that of mice treated DMBA-challenged control mice. Tumors from mice treated with stampidine or stampidine plus paclitaxel displayed unique changes of a signature protein cassette comprised BRCA1, p21, Bax, and Bcl-2.Conclusion: Stampidine has potent chemopreventive activity and is as effective as the standard chemotherapy drug paclitaxel in the chemical carcinogenesis.
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Affiliation(s)
- Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | | | - Mehmet Tuzcu
- Department of Molecular Biology, Faculty of Science, Firat University, Elazig, Turkey
| | - Birsen Elibol
- Department of Medical Biology, University of Bezmialem, School of Medicine, Istanbul, Turkey
| | - Taha Koray Sahin
- Department of Internal Medicine, University of Hacettepe School of Medicine, Ankara, Turkey
| | - Ulkan Kilic
- Department of Medical Biology, University of Health Sciences, School of Medicine, Istanbul, Turkey
| | - Sanjive Qazi
- Division of Hematology-Oncology, Department of Pediatrics, Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine (USC KSOM), Los Angeles, CA, USA.,Department of Immuno-Oncology, Ares Pharmaceuticals, St. Paul, MN, USA.,Gustavus Adolphus College, St. Peter, MN, USA
| | - Fatih Mehmet Uckun
- Division of Hematology-Oncology, Department of Pediatrics, Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine (USC KSOM), Los Angeles, CA, USA.,Department of Immuno-Oncology, Ares Pharmaceuticals, St. Paul, MN, USA
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