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Shameem M, Jian Bagherpoor A, Nakhi A, Dosa P, Georg G, Kassie F. Mitochondria-targeted metformin (mitomet) inhibits lung cancer in cellular models and in mice by enhancing the generation of reactive oxygen species. Mol Carcinog 2023; 62:1619-1629. [PMID: 37401866 PMCID: PMC10961008 DOI: 10.1002/mc.23603] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 05/04/2023] [Accepted: 06/08/2023] [Indexed: 07/05/2023]
Abstract
Lung cancer is the leading cause of cancer-related mortality in the United States. Although some epidemiological studies have shown an inverse relationship between the use of metformin, a widely used antidiabetic drug, and the incidence of lung cancer, the real benefits of the drug are unclear as the efficacy is low and the outcomes are quite heterogeneous. To develop a more potent form of metformin, we synthesized mitochondria-targeted metformin (mitomet) and tested its efficacy in in vitro and in vivo models of lung cancer. Mitomet was cytotoxic to transformed bronchial cells and several non-small cell lung cancer (NSCLC) cell lines but relatively safe to normal bronchial cells, and these effects were mediated mainly via induction of mitochondrial reactive oxygen species. Studies using isogenic A549 cells showed that mitomet was selectively toxic to those cells deficient in the tumor suppressor gene LKB1, which is widely mutated in NSCLC. Mitomet also significantly reduced the multiplicity and size of lung tumors induced by a tobacco smoke carcinogen in mice. Overall, our findings showed that mitomet, which was about 1000 and 100 times more potent than metformin, in killing NSCLC cells and reducing the multiplicity and size of lung tumors in mice, respectively, is a promising candidate for the chemoprevention and treatment of lung cancer, in particular against LKB1-deficient lung cancers which are known to be highly aggressive.
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Affiliation(s)
- Mohammad Shameem
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | | | - Ali Nakhi
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, College of Pharmacy, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Peter Dosa
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, College of Pharmacy, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Gunda Georg
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, College of Pharmacy, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Fekadu Kassie
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA
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Abstract
Natural Deep Eutectic Systems (NADES) composed of sugar and sugar alcohols have been studied and applied in a variety of biological applications. Understanding their interaction with water across dilution and temperature is inherently important for maximizing the utility of NADES. Herein a wide range of sugar:sugar-alcohol molar ratios were synthesized and characterized by viscosity, molar excess volume, differential scanning calorimetry, water activity, and confocal Raman cryomicroscopy. NADES were found to have greater viscosity, reduced heat of fusion, greater absolute molar excess volume, lower water activity, and stronger hydrogen bonding of water than non-NADES mixtures. This is hypothesized to be due to cumulatively stronger hydrogen bonding interactions between components in pure and diluted NADES with the strongest interactions in the water-rich region. This work provides useful data and further understanding of hydrogen bonding interaction strength for a wide range of molar ratios in pure to well-diluted forms.
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Affiliation(s)
- Adam Joules
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, 55455, USA
| | - Tessa Burrows
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, 55455, USA
| | - Peter Dosa
- Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, University of Minnesota, Minneapolis, 55455, USA
| | - Allison Hubel
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, 55455, USA
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Pollock K, Budenske J, McKenna D, Dosa P, Hubel A. Algorithm optimization of cryopreservation protocols to improve mesenchymal stem cell functionality. Cryobiology 2016. [DOI: 10.1016/j.cryobiol.2016.09.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Affiliation(s)
- Peter Dosa
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544-1009
| | - Ian Kronish
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544-1009
| | - Jeremy McCallum
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544-1009
| | - Jeffrey Schwartz
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544-1009
| | - Michael C. Barden
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544-1009
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