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Nicotine Inhibits the Cytotoxicity and Genotoxicity of NNK Mediated by CYP2A13 in BEAS-2B Cells. Molecules 2022; 27:molecules27154851. [PMID: 35956805 PMCID: PMC9369970 DOI: 10.3390/molecules27154851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 12/02/2022] Open
Abstract
Both tobacco-specific carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and nicotine can be metabolized by cytochrome P450 2A13 (CYP2A13). Previous studies have shown that nicotine has a potential inhibitory effect on the toxicity of NNK. However, due to the lack of CYP2A13 activity in conventional lung cell lines, there had been no systematic in vitro investigation for the key target organ, the lung. Here, BEAS-2B cells stably expressing CYP2A13 (B-2A13 cells) were constructed to investigate the effects of nicotine on the cytotoxicity and genotoxicity of NNK. The results showed more sensitivity for NNK-induced cytotoxicity in B-2A13 cells than in BEAS-2B and B-vector cells. NNK significantly induced DNA damage, cell cycle arrest, and chromosomal damage in B-2A13 cells, but had no significant effect on BEAS-2B cells and the vector control cells. The combination of different concentration gradient of nicotine without cytotoxic effects and a single concentration of NNK reduced or even counteracted the cytotoxicity and multi-dimensional genotoxicity in a dose-dependent manner. In conclusion, CYP2A13 caused the cytotoxicity and genotoxicity of NNK in BEAS-2B cells, and the addition of nicotine could inhibit the toxicity of NNK.
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Agraval H, Sharma JR, Prakash N, Yadav UCS. Fisetin suppresses cigarette smoke extract-induced epithelial to mesenchymal transition of airway epithelial cells through regulating COX-2/MMPs/β-catenin pathway. Chem Biol Interact 2022; 351:109771. [PMID: 34864006 DOI: 10.1016/j.cbi.2021.109771] [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: 10/17/2021] [Revised: 11/10/2021] [Accepted: 12/01/2021] [Indexed: 11/27/2022]
Abstract
Cigarette smoke exposure leads to upregulation of cyclooxygenase-2 (COX-2), an inducible enzyme that synthesizes prostaglandin E2 (PGE2) and promotes airway inflammation. COX-2 overexpression is frequently implicated in inflammation, invasion, metastasis, and epithelial-mesenchymal transition (EMT). However, its detailed molecular mechanism in cigarette smoke induced EMT is not clear. Further, fisetin, a bioflavonoid, exhibits antioxidant and anti-inflammatory properties, but its effect in modulating COX-2-mediated inflammation and downstream sequelae remains unexplored. Therefore, we have investigated the mechanism of cigarette smoke-induced COX-2-mediated EMT in airway epithelial cells and examined the role of fisetin in controlling this aberration. MTT, trypan blue staining, gelatin zymography, Western blotting, invasion, wound healing, and tumor sphere formation assays in cigarette smoke extract (CSE) and/or fisetin treated airway epithelial cells, and in-silico molecular docking studies were performed. Results revealed that CSE exposure increased the expression and activity of COX-2, MMP-2/9, and β-catenin and also enhanced expression of EMT markers leading to higher migration and invasion potential of airway epithelial cells. A specific COX-2 inhibitor NS-398 as well as fisetin treatment reversed the expression of EMT biomarkers, reduced the activity of MMP-2/9, and blocked the migration and invasion potential induced by CSE. Further, PGE2 also increased MMPs activity, invasion, and migration potential similar to CSE, which were significantly reversed by fisetin. In-silico studies showed a high binding affinity of fisetin to key EMT associated proteins, validating its anti-EMT potential. Thus, our study firstly unearths the mechanism of CSE-induced EMT in airway epithelial cells via COX-2/MMP/β-catenin pathway, and secondly, it reveals that fisetin could significantly reverse CSE-induced EMT by inhibiting COX-2, indicating that fisetin could be an effective drug candidate for cigarette smoke-induced lung dysfunction.
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Affiliation(s)
- Hina Agraval
- Metabolic Disorders and Inflammatory Pathologies Laboratory (MDIPL), School of Life Sciences, Central University of Gujarat, Sector 30, Gandhinagar, Gujarat, 382030, India
| | - Jiten R Sharma
- Metabolic Disorders and Inflammatory Pathologies Laboratory (MDIPL), School of Life Sciences, Central University of Gujarat, Sector 30, Gandhinagar, Gujarat, 382030, India
| | - Nutan Prakash
- Department of Biotechnology, Atmiya University, Rajkot, Gujarat, 360005, India
| | - Umesh C S Yadav
- Special Center for Molecular Medicine, and Special Centre for Systems Medicine, Jawaharlal Nehru University, New Delhi, 110067, India.
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Valente VB, de Melo Cardoso D, Kayahara GM, Nunes GB, Tjioe KC, Biasoli ÉR, Miyahara GI, Oliveira SHP, Mingoti GZ, Bernabé DG. Stress hormones promote DNA damage in human oral keratinocytes. Sci Rep 2021; 11:19701. [PMID: 34611221 PMCID: PMC8492616 DOI: 10.1038/s41598-021-99224-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 09/08/2021] [Indexed: 12/24/2022] Open
Abstract
Chronic stress increases the systemic levels of stress hormones norepinephrine and cortisol. As well as tobacco-specific carcinogen NNK (4-(methylnitrosamine)-1-(3-pyridyl)-1-butanone), they can induce expressive DNA damage contributing to the cancer development. However, it is unknown whether stress hormones have genotoxic effects in oral keratinocytes. This study investigated the effects of stress hormones on DNA damage in a human oral keratinocyte cell line (NOK-SI). NOK-SI cells stimulated with norepinephrine or cortisol showed higher DNA damage compared to untreated cells. Norepinephrine-induced DNA damage was reversed by pre-treatment with beta-adrenergic blocker propranolol. Cells treated with NNK combined to norepinephrine displayed reduced levels of caspases 3 and 7. Cortisol also reduced the activity of pro-apoptotic enzymes. NNK or norepinephrine promoted single-strand breaks and alkali-label side breaks in the DNA of NOK-SI cells. Pre-treatment of cells with propranolol abolished these effects. Carcinogen NNK in the presence or absence of cortisol also induced DNA damage of these cells. The genotoxic effects of cortisol alone and hormone combined with NNK were blocked partially and totally, respectively, by the glucocorticoid receptor antagonist RU486. DNA damage promoted by NNK or cortisol and carcinogen combined to the hormone led to intracellular γH2AX accumulation. The effects caused by NNK and cortisol were reversed by propranolol and glucocorticoid receptor antagonist RU486, respectively. Propranolol inhibited the oxidation of basis induced by NNK in the presence of DNA-formamidopyrimidine glycosylase. DNA breaks induced by norepinephrine in the presence or absence of NNK resulted in higher 8OHdG cellular levels. This effect was also induced through beta-adrenergic receptors. Together, these findings indicate that stress hormones induce DNA damage of oral keratinocytes and could contribute to oral carcinogenesis.
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Affiliation(s)
- Vitor Bonetti Valente
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
| | - Diovana de Melo Cardoso
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
| | - Giseli Mitsuy Kayahara
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
| | - Giovana Barros Nunes
- Laboratory of Reproductive Physiology, Department of Animal Health, School of Veterinary Medicine, São Paulo State University (Unesp), 793 Clovis Pestana St, Araçatuba, São Paulo, 16050-680, Brazil
| | - Kellen Cristine Tjioe
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
- Laboratory of Immunopharmacology, Department of Basic Sciences, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
| | - Éder Ricardo Biasoli
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
| | - Glauco Issamu Miyahara
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
| | - Sandra Helena Penha Oliveira
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
- Laboratory of Immunopharmacology, Department of Basic Sciences, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil
| | - Gisele Zoccal Mingoti
- Laboratory of Reproductive Physiology, Department of Animal Health, School of Veterinary Medicine, São Paulo State University (Unesp), 793 Clovis Pestana St, Araçatuba, São Paulo, 16050-680, Brazil
| | - Daniel Galera Bernabé
- Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil.
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (Unesp), 1193 José Bonifácio St, Araçatuba, São Paulo, 15050-015, Brazil.
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Metabolic activation enhances the cytotoxicity, genotoxicity and mutagenicity of two synthetic alkaloids with selective effects against human tumour cell lines. Mutat Res 2020; 861-862:503294. [PMID: 33551097 DOI: 10.1016/j.mrgentox.2020.503294] [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: 05/07/2020] [Revised: 10/27/2020] [Accepted: 11/05/2020] [Indexed: 12/24/2022]
Abstract
The pharmacological potential of drugs must be evaluated to establish their potential therapeutic benefits and side effects. This evaluation includes assessment of the effects of hepatic enzymes that catalyse their metabolic activation. Previously, our research group synthesized and characterized a set of synthetic 3-alkyl pyridine alkaloid (3-APA) analogues that cause in vitro cytotoxic, genotoxic, and mutagenic effects in various human cancer cell lines. The present study aimed to evaluate these activities with the two most promising synthetic 3-APAs (3-APA 1 and 3-APA 2) against cell lines derived from breast cancer (MDA-MB-231), ovarian cancer (TOV-21 G) and lung fibroblasts (WI-26-VA4) with and without metabolic activation (S9 fraction). The cytotoxicity of the compounds was evaluated employing MTT and clonogenic assays. In addition, comet assays, γH2AX immunocytochemistry labelling assays and cytokinesis-block micronucleus tests were carried out to evaluate the potential of these compounds to induce chromosomal damage. The results obtained in the MTT assay showed that compound 3-APA 2 exhibited high selectivity index (SI) values (ranging between 21.0 and 92.6). In addition, the cytotoxicity of the compounds was clearly enhanced by metabolic activation. Moreover, both compounds were genotoxic and induced double-strand breaks in DNA and chromosomal lesions with and without S9. The cancer cell lines tested showed higher genotoxic sensitivity to the compounds than did the non-tumour cell line used as a reference. The genotoxic and mutagenic effects of the compounds were potentiated in experiments with metabolic activation. The data obtained in this study indicate that compound 3-APA 2 is more active against the human cancer cell lines tested, both with and without metabolic activation, and can therefore be considered a candidate drug to treat human ovarian and breast cancer.
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García-Medina S, Galar-Martínez M, Gómez-Oliván LM, Torres-Bezaury RMDC, Islas-Flores H, Gasca-Pérez E. The relationship between cyto-genotoxic damage and oxidative stress produced by emerging pollutants on a bioindicator organism (Allium cepa): The carbamazepine case. CHEMOSPHERE 2020; 253:126675. [PMID: 32278918 DOI: 10.1016/j.chemosphere.2020.126675] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
The carbamazepine (CBZ) is one of the most frequently detected anticonvulsant drugs in water bodies. Although there are reports of its ecotoxicological effects in the scientific literature, toxicity studies have not focused on establishing the mechanism by which CBZ produces its effect at environmentally relevant concentrations. The objective of this work was to evaluate cyto-genotoxicity and its relationship with oxidative stress produced by carbamazepine in the Allium cepa model. The cytotoxicity and genotoxicity, as well as the biomarkers of oxidative stress were analyzed in the roots of A. cepa, exposed to 1 and 31.36 μg L-1 after 2, 6, 12, 24, 48 and 72 h. The results show that genotoxic capacity of this drug in the roots of A. cepa is related to the generation of oxidative stress, in particular with production of hydroperoxides and oxidized proteins. Also, the cytotoxic effect has a high correlation with DNA damage. The results of the present study clearly indicate that bioassays with sensitive plants such as A. cepa are useful and complementary tools to evaluate the environmental impact of emerging contaminants.
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Affiliation(s)
- Sandra García-Medina
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico.
| | - Marcela Galar-Martínez
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico.
| | - Leobardo Manuel Gómez-Oliván
- Laboratory of Environmental Toxicology, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan S/n. Col. Residencial Colón, 50120, Toluca, Estado de México, Mexico
| | - Rosalía María Del Consuelo Torres-Bezaury
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico
| | - Hariz Islas-Flores
- Laboratory of Environmental Toxicology, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan S/n. Col. Residencial Colón, 50120, Toluca, Estado de México, Mexico
| | - Eloy Gasca-Pérez
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico; Cátedra CONACYT, Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo., Ciudad de México, CP, 07700, Mexico
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