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Kobets T, Hickey C, Johnson G, Duan JD, Etter S, Smith B, Williams GM. Assessment of no-observed-effect-levels for DNA adducts formation by genotoxic carcinogens in fetal turkey livers. Toxicology 2024; 501:153714. [PMID: 38141718 DOI: 10.1016/j.tox.2023.153714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/08/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
For genotoxic carcinogens, covalent binding to DNA is a critical initiating event in tumorigenesis. The present research investigated dose-effect relationships of three genotoxic carcinogens representing different structural classes, 2-acetylaminofluorene (2-AAF), benzo[a]pyrene (B[a]P) and quinoline (QUI), to assess the existence of no-observed-effect-levels (NOELs) for the formation of DNA adducts. Carcinogens were administered into the air sac of fertilized turkey eggs over wide dose ranges in three daily injections on days 22 to 24 of incubation. DNA adducts were measured in the fetal turkey livers by the 32P-nucleotide postlabeling (NPL) assay. B[a]P and QUI produced DNA adducts in a dosage-related manner and exhibited NOELs at 0.65 and 0.35 mg/kg bw/day, respectively. In contrast, 2-AAF formed DNA adducts at all tested dosages down to 0.005 mg/kg bw/day. Benchmark dose (BMD) analysis identified the potencies of 2-AAF and QUI to be similar, while B[a]P was the least potent compound. Overall, findings in fetal turkey livers demonstrated that exposure levels to genotoxic compounds that do not result in DNA adducts can exist but are not evident with all carcinogens of this type. The use of mechanistic dose-effect studies for genotoxic endpoints can provide critical information for prioritization of concerns for risk assessment.
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Affiliation(s)
- Tetyana Kobets
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA.
| | | | | | - Jian-Dong Duan
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA
| | | | - Benjamin Smith
- Monell Chemical Senses Center, Philadelphia, PA 19104, USA
| | - Gary M Williams
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA
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Li Y, Li X, Cui Z, He F, Zong W, Liu R. Probing the toxic effect of quinoline to catalase and superoxide dismutase by multispectral method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122449. [PMID: 36753919 DOI: 10.1016/j.saa.2023.122449] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Quinoline is a common nitrogen heterocyclic aromatic hydrocarbon with high water solubility. Studies have shown that quinoline can be teratogenic, carcinogenic and mutagenic. And Hepatocytes are the target cell of quinoline, which contain a large number of mitochondria and are related to cell function and the balance of reactive oxygen species (ROS). However, the research on the effect of quinoline on hepatocyte damage and anti-oxidation system is still unclear. Through the means of multispectral experiments, it is concluded that quinoline can affect the catalase (CAT) and superoxide dismutase (SOD), change their structure and affect their activity. The binding mode and binding site of quinoline to CAT/SOD were analyzed by isothermal calorimetric titration (ITC) and Molecular Operating Environment (MOE). In molecular docking simulation, the binding site of quinoline-CAT system is close to the active site, and affect the microenvironment of Tyr 357. This may be the reason why quinoline affects CAT activity and synchronous fluorescence (Δλ = 15 nm). This study demonstrated that quinoline has a great effect on CAT, which may affect the intracellular ROS balance and become a potential way to cause hepatocyte damage.
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Affiliation(s)
- Yuze Li
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Zhihan Cui
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Falin He
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Wansong Zong
- College of Geography and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, Shandong 250014, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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Chand P, Dutta S, Mukherji S. Characterization and biodegradability assessment of water-soluble fraction of oily sludge using stir bar sorptive extraction and GCxGC-TOF MS. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 304:119177. [PMID: 35346777 DOI: 10.1016/j.envpol.2022.119177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Percolation of water through oily sludge during storage and handling of the sludge can cause soil and groundwater contamination. In this study, oily sludge from a refinery was equilibrated with water to obtain the water-soluble fraction (WSF) of oily sludge. The WSF had dissolved organic carbon (DOC) of 166 mg/L. Human cell line-based toxicity assay revealed IC50 of 41 mg/L indicating its toxic nature. The predominant compounds in WSF of oily sludge included isomers of methyl, dimethyl and trimethyl quinolines and naphthalenes along with phenol derivatives and other polynuclear aromatic hydrocarbons (PAHs). Biodegradation of WSF of oily sludge was studied using a consortium of Rhodococcus ruber, Bacillus sp. and Bacillus cereus isolated from the refinery sludge. The consortium of the three strains resulted in 70% degradation over 15 days with a first-order degradation rate of 0.161 day-1. Further analysis of the WSF was performed using the stir-bar sorptive extraction (SBSE) followed by GCxGC-TOF MS employing a PDMS Twister. The GCxGC analysis showed that Bacillus cereus was capable of degrading the quinoline, phenol and naphthalene derivatives in WSF of oily sludge at a faster rate compared to pyridine and benzoquinoline derivatives. Quinoline, phenol, biphenyl, naphthalene, pyridine and benzoquinolines derivatives in the WSF of oily sludge were reduced by 87%, 92%, 88%, 77%, 40% and 62%, respectively with respect to the controls. The WSF of oily sludge contained, n-alkanes, ranging from n-C12 to n-C18 which were removed within 2 days of biodegradation.
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Affiliation(s)
- Priyankar Chand
- Environmental Science and Engineering Department, IIT Bombay, Powai, Mumbai, India
| | - Suryendu Dutta
- Department of Earth Sciences, IIT Bombay, Powai, Mumbai, India
| | - Suparna Mukherji
- Environmental Science and Engineering Department, IIT Bombay, Powai, Mumbai, India.
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Boyd DR, Sharma ND, Loke PL, Carroll JG, Stevenson PJ, Hoering P, Allen CCR. Toluene Dioxygenase-Catalyzed cis-Dihydroxylation of Quinolines: A Molecular Docking Study and Chemoenzymatic Synthesis of Quinoline Arene Oxides. Front Bioeng Biotechnol 2021; 8:619175. [PMID: 33644006 PMCID: PMC7907597 DOI: 10.3389/fbioe.2020.619175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/22/2020] [Indexed: 12/18/2022] Open
Abstract
Molecular docking studies of quinoline and 2-chloroquinoline substrates at the active site of toluene dioxygenase (TDO), were conducted using Autodock Vina, to identify novel edge-to-face interactions and to rationalize the observed stereoselective cis-dihydroxylation of carbocyclic rings and formation of isolable cis-dihydrodiol metabolites. These in silico docking results of quinoline and pyridine substrates, with TDO, also provided support for the postulated cis-dihydroxylation of electron-deficient pyridyl rings, to give transient cis-dihydrodiol intermediates and the derived hydroxyquinolines. 2-Chloroquinoline cis-dihydrodiol metabolites were used as precursors in the chemoenzymatic synthesis of enantiopure arene oxide and arene dioxide derivatives of quinoline, in the context of its possible mammalian metabolism and carcinogenicity.
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Affiliation(s)
- Derek R. Boyd
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, Belfast, United Kingdom
| | - Narain D. Sharma
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, Belfast, United Kingdom
| | - Pui L. Loke
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, Belfast, United Kingdom
| | - Jonathan G. Carroll
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, Belfast, United Kingdom
| | - Paul J. Stevenson
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, Belfast, United Kingdom
| | - Patrick Hoering
- School of Biological Sciences, Queen's University of Belfast, Belfast, United Kingdom
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Kitamura Y, Suzuki T, Kohara A, Saeki KI. Hepatocarcinogen 4-methylquinoline induced G:C to C:G transversions in the cII gene in the liver of lambda/lacZ transgenic mice (Muta™Mouse). Mutat Res 2020; 821:111709. [PMID: 32497932 DOI: 10.1016/j.mrfmmm.2020.111709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/15/2020] [Accepted: 05/19/2020] [Indexed: 11/19/2022]
Abstract
We have previously reported that quinoline increased the mutation frequency of the cII gene in the liver of lambda/lacZ transgenic mice (Muta™Mouse), and G:C to C:G transversions were the molecular signature of quinoline-induced mutations. 4-Methylquinoline (4-MeQ) has the highest mutagenicity among quinoline and isomeric methylquinolines according to the Ames test using Salmonella typhimurium TA 100, in the presence of rat liver microsomal enzymes. In this report, we examined the effect of 4-MeQ on mutagenesis in the lambda cII gene in the liver of the Muta™Mouse, and we analyzed the sequences of the mutated genes. The mutation frequency of the liver cII gene was seven times higher in 4-MeQ-treated mice than in control mice. Sequence analysis revealed that 4-MeQ primarily induced G:C to C:G transversions (37 of 45). The specificities of 4-MeQ for target organ and mutation pattern were very consistent with those of quinoline. Thus, we showed that 4-MeQ was also genotoxic in the liver of the Muta™Mouse, and as with quinoline, the G:C to C:G transversion was the molecular signature of the 4-MeQ-induced mutations.
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Affiliation(s)
- Yuki Kitamura
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan
| | - Takayoshi Suzuki
- Division of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, Kawasaki, Japan
| | - Arihiro Kohara
- JCRB Cell Bank, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Ken-Ichi Saeki
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan; Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.
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Teixeira MDC, Felix FS, Thomasi SS, Magriotis ZM, da Silva JM, Okumura LL, Saczk AA. Voltammetric determination of organic nitrogen compounds in environmental samples using carbon paste electrode modified with activated carbon. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kogevinas M, Gwinn WM, Kriebel D, Phillips DH, Sim M, Bertke SJ, Calaf GM, Colosio C, Fritz JM, Fukushima S, Hemminki K, Jensen AA, Kolstad H, Mráz J, Nesnow S, Nylander-French LA, Parent ME, Sandy M, Smith-Roe SL, Stoner G, Suzuki T, Teixeira JP, Vodicka P, Tornero-Velez R, Guyton KZ, Grosse Y, El Ghissassi F, Bouvard V, Benbrahim-Tallaa L, Guha N, Vilahur N, Driscoll T, Hall A, Middleton D, Jaillet C, Mattock H, Straif K. Carcinogenicity of quinoline, styrene, and styrene-7,8-oxide. Lancet Oncol 2018; 19:S1470-2045(18)30316-4. [PMID: 29680246 DOI: 10.1016/s1470-2045(18)30316-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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