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Li Y, Hecht SS. Metabolic Activation and DNA Interactions of Carcinogenic N-Nitrosamines to Which Humans Are Commonly Exposed. Int J Mol Sci 2022; 23:ijms23094559. [PMID: 35562949 PMCID: PMC9105260 DOI: 10.3390/ijms23094559] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 02/04/2023] Open
Abstract
Carcinogenic N-nitrosamine contamination in certain drugs has recently caused great concern and the attention of regulatory agencies. These carcinogens-widely detectable in relatively low levels in food, water, cosmetics, and drugs-are well-established and powerful animal carcinogens. The electrophiles resulting from the cytochrome P450-mediated metabolism of N-nitrosamines can readily react with DNA and form covalent addition products (DNA adducts) that play a central role in carcinogenesis if not repaired. In this review, we aim to provide a comprehensive and updated review of progress on the metabolic activation and DNA interactions of 10 carcinogenic N-nitrosamines to which humans are commonly exposed. Certain DNA adducts such as O6-methylguanine with established miscoding properties play central roles in the cancer induction process, whereas others have been linked to the high incidence of certain types of cancers. We hope the data summarized here will help researchers gain a better understanding of the bioactivation and DNA interactions of these 10 carcinogenic N-nitrosamines and facilitate further research on their toxicologic and carcinogenic properties.
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Affiliation(s)
- Yupeng Li
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA;
- Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
- Correspondence: ; Tel.: +1-612-624-8187
| | - Stephen S. Hecht
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA;
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Housh K, Jha JS, Haldar T, Amin SBM, Islam T, Wallace A, Gomina A, Guo X, Nel C, Wyatt JW, Gates KS. Formation and repair of unavoidable, endogenous interstrand cross-links in cellular DNA. DNA Repair (Amst) 2020; 98:103029. [PMID: 33385969 DOI: 10.1016/j.dnarep.2020.103029] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 02/08/2023]
Abstract
Genome integrity is essential for life and, as a result, DNA repair systems evolved to remove unavoidable DNA lesions from cellular DNA. Many forms of life possess the capacity to remove interstrand DNA cross-links (ICLs) from their genome but the identity of the naturally-occurring, endogenous substrates that drove the evolution and retention of these DNA repair systems across a wide range of life forms remains uncertain. In this review, we describe more than a dozen chemical processes by which endogenous ICLs plausibly can be introduced into cellular DNA. The majority involve DNA degradation processes that introduce aldehyde residues into the double helix or reactions of DNA with endogenous low molecular weight aldehyde metabolites. A smaller number of the cross-linking processes involve reactions of DNA radicals generated by oxidation.
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Affiliation(s)
- Kurt Housh
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Jay S Jha
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Tuhin Haldar
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Saosan Binth Md Amin
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Tanhaul Islam
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Amanda Wallace
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Anuoluwapo Gomina
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Xu Guo
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Christopher Nel
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Jesse W Wyatt
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Kent S Gates
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States; University of Missouri, Department of Biochemistry, Columbia, MO 65211, United States.
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Waidyanatha S, McDonald JD, Sanders JM, Doyle-Eisele M, Moeller BC, Garner CE. Disposition and metabolism of 2,2'-dimorpholinodiethyl ether in sprague dawley rats and B6C3F1/N mice after oral, intravenous administration, and dermal application. Xenobiotica 2020; 50:1341-1351. [PMID: 32501166 DOI: 10.1080/00498254.2020.1779389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The specialty amine catalyst 2,2'-dimorpholinodiethyl ether (DMDEE) is a high-production volume chemical used in the production of flexible foam, high-resilient molded foam, and in coatings and adhesives. The disposition and metabolism of [14C]DMDEE (20 or 200 mg/kg) were determined in male ane female rats and mice after oral and intravenous administration and dermal application. In male and female rats, following a single oral administration, [14C]DMDEE was well-absorbed and excreted rapidly and extensively via urine (75-93%) and some in feces (∼4-8%). The total radioactivity in tissues at 24 h and 72 h (males only) following oral administration was 8-10% and ∼4%, respectively, suggesting considerable tissue distribution. A moderate amount of the total tissue radioactivity in kidney and liver were unextractable suggesting covalent binding of [14C]DMDEE-derived products in tissue macromolecules. Absorption following a single dermal application in rats was significant (∼64%) with a similar disposition pattern to oral. The oral and dermal disposition of [14C]DMDEE in male and female mice was similar to rats. Urinary products of DMDEE identified were oxidative metabolism of the morpholine ring. Coadministration of DMDEE with nitrite in rats didn't produce the rodent carcinogen, N-nitrosomorpholine.
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Affiliation(s)
- Suramya Waidyanatha
- Division of National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | - J Michael Sanders
- Division of National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | | | - C Edwin Garner
- Lovelace Respiratory Research Institute, Albuquerque, NM, USA
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Tskhovrebov AG, Vasileva AA, Goddard R, Riedel T, Dyson PJ, Mikhaylov VN, Serebryanskaya TV, Sorokoumov VN, Haukka M. Palladium(II)-Stabilized Pyridine-2-Diazotates: Synthesis, Structural Characterization, and Cytotoxicity Studies. Inorg Chem 2018; 57:930-934. [PMID: 29356518 DOI: 10.1021/acs.inorgchem.8b00072] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Well-defined diazotates are scarce. Here we report the synthesis of unprecedented homoleptic palladium(II) diazotate complexes. The palladium(II)-mediated nitrosylation of 2-aminopyridines with NaNO2 results in the formation of metal-stabilized diazotates, which were found to be cytotoxic to human ovarian cancer cells.
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Affiliation(s)
- Alexander G Tskhovrebov
- St. Petersburg State University , Universitetskaya Nab. 7/9, St. Petersburg, Russian Federation.,Max-Planck-Institut für Kohlenforschung , D-45470 Mülheim/Ruhr, Germany
| | - Anna A Vasileva
- St. Petersburg State University , Universitetskaya Nab. 7/9, St. Petersburg, Russian Federation
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung , D-45470 Mülheim/Ruhr, Germany
| | - Tina Riedel
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Vladimir N Mikhaylov
- St. Petersburg State University , Universitetskaya Nab. 7/9, St. Petersburg, Russian Federation
| | - Tatiyana V Serebryanskaya
- Research Institute for Physical Chemical Problems of the Belarusian State University, 14, Leningradskaya Str., 220030 Minsk, Belarus
| | - Viktor N Sorokoumov
- St. Petersburg State University , Universitetskaya Nab. 7/9, St. Petersburg, Russian Federation
| | - Matti Haukka
- Department of Chemistry, University of Jyväskylä , P.O. Box 35, FI-40014 Jyväskylä, Finland
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