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Torre M, Bukhari H, Nithianandam V, Zanella CA, Mata DA, Feany MB. A Drosophila model relevant to chemotherapy-related cognitive impairment. Sci Rep 2023; 13:19290. [PMID: 37935827 PMCID: PMC10630312 DOI: 10.1038/s41598-023-46616-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023] Open
Abstract
Chemotherapy-related cognitive impairment (CRCI) is a common adverse effect of treatment and is characterized by deficits involving multiple cognitive domains including memory. Despite the significant morbidity of CRCI and the expected increase in cancer survivors over the coming decades, the pathophysiology of CRCI remains incompletely understood, highlighting the need for new model systems to study CRCI. Given the powerful array of genetic approaches and facile high throughput screening ability in Drosophila, our goal was to validate a Drosophila model relevant to CRCI. We administered the chemotherapeutic agents cisplatin, cyclophosphamide, and doxorubicin to adult Drosophila. Neurologic deficits were observed with all tested chemotherapies, with doxorubicin and in particular cisplatin also resulting in memory deficits. We then performed histologic and immunohistochemical analysis of cisplatin-treated Drosophila tissue, demonstrating neuropathologic evidence of increased neurodegeneration, DNA damage, and oxidative stress. Thus, our Drosophila model relevant to CRCI recapitulates clinical, radiologic, and histologic alterations reported in chemotherapy patients. Our new Drosophila model can be used for mechanistic dissection of pathways contributing to CRCI (and chemotherapy-induced neurotoxicity more generally) and pharmacologic screens to identify disease-modifying therapies.
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Affiliation(s)
- Matthew Torre
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Hassan Bukhari
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Vanitha Nithianandam
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Camila A Zanella
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | | | - Mel B Feany
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA.
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Torre M, Bukhari H, Nithianandam V, Zanella CA, Mata DA, Feany MB. A Drosophila model of chemotherapy-related cognitive impairment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.01.543297. [PMID: 37333281 PMCID: PMC10274738 DOI: 10.1101/2023.06.01.543297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Chemotherapy-related cognitive impairment (CRCI) is a common adverse effect of treatment and is characterized by deficits involving multiple cognitive domains including memory. Despite the significant morbidity of CRCI and the expected increase in cancer survivors over the coming decades, the pathophysiology of CRCI remains incompletely understood, highlighting the need for new model systems to study CRCI. Given the powerful array of genetic approaches and facile high throughput screening ability in Drosophila, our goal was to validate a Drosophila model of CRCI. We administered the chemotherapeutic agents cisplatin, cyclophosphamide, and doxorubicin to adult Drosophila. Neurocognitive deficits were observed with all tested chemotherapies, especially cisplatin. We then performed histologic and immunohistochemical analysis of cisplatin-treated Drosophila tissue, demonstrating neuropathologic evidence of increased neurodegeneration, DNA damage, and oxidative stress. Thus, our Drosophila model of CRCI recapitulates clinical, radiologic, and histologic alterations reported in chemotherapy patients. Our new Drosophila model can be used for mechanistic dissection of pathways contributing to CRCI and pharmacologic screens to identify novel therapies to ameliorate CRCI.
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Affiliation(s)
- Matthew Torre
- Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Hassan Bukhari
- Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Vanitha Nithianandam
- Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Camila A Zanella
- Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | | | - Mel B Feany
- Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
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3
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Efthimiou I, Vlastos D, Triantafyllidis V, Eleftherianos A, Antonopoulou M. Investigation of the Genotoxicological Profile of Aqueous Betula pendula Extracts. PLANTS (BASEL, SWITZERLAND) 2022; 11:2673. [PMID: 36297697 PMCID: PMC9611029 DOI: 10.3390/plants11202673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Betula pendula belongs to the Betulaceae family and is most common in the northern hemisphere. Various birch species have exhibited antimicrobial, antioxidant and anticancer properties. In the present study, we investigated the genotoxic and cytotoxic activity as well as the antigenotoxic potential against the mutagenic agent mitomycin-C (MMC) of two commercial products, i.e., a Betula pendula aqueous leaf extract product (BE) and a Betula pendula product containing aqueous extract of birch leaves at a percentage of 94% and lemon juice at a percentage of 6% (BP) using the cytokinesis block micronucleus (CBMN) assay. The most prevalent compounds and elements of BE and BP were identified using UHPLC-MS and ICP-MS/MS, respectively. All mixtures of BE with MMC demonstrated a decrease in the MN frequencies, with the lowest and highest concentrations inducing a statistically significant antigenotoxic activity. BP lacked genotoxic potential, while it was cytotoxic in all concentrations. Its mixtures with MMC demonstrated statistically significant antigenotoxic activity only at the lowest concentration. UHPLC-MS and ICP-MS/MS showed the presence of various elements and phytochemicals. Our results reveal antigenotoxic and cytotoxic potential of both BE and BP, while the variations observed could indicate the importance of the interactions among different natural products and/or their compounds.
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Affiliation(s)
- Ioanna Efthimiou
- Department of Sustainable Agriculture, University of Patras, GR-30100 Agrinio, Greece
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), GR-19013 Anavyssos, Greece
| | - Dimitris Vlastos
- Department of Biology, Section of Genetics Cell Biology and Development, University of Patras, GR-26500 Patras, Greece
| | | | - Antonios Eleftherianos
- Akrokeramos Sewerage Laboratory, Athens Water Supply and Sewerage Company (EYDAP SA), GR-18755 Keratsini, Greece
| | - Maria Antonopoulou
- Department of Sustainable Agriculture, University of Patras, GR-30100 Agrinio, Greece
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Tagorti G, Kaya B. Publication trends of somatic mutation and recombination tests research: a bibliometric analysis (1984‒2020). Genomics Inform 2022; 20:e10. [PMID: 35399009 PMCID: PMC9001991 DOI: 10.5808/gi.21083] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 01/18/2022] [Indexed: 11/20/2022] Open
Abstract
Human exposure to pollutants has been on the rise. Thus, researchers have been focused on understanding the effect of these compounds on human health, especially on the genetic information by using various tests, among them the somatic mutation and recombination tests (SMARTs). It is a sensitive and accurate method applicable to genotoxicity analysis. Here, a comprehensive bibliometric analysis of SMART assays in genotoxicity studies was performed to assess publication trends of this field. Data were extracted from the Web of Science database and analyzed by the bibliometric tools HistCite, Biblioshiny (RStudio), VOSViewer, and CiteSpace. Results have shown an increase in the last 10 years in terms of publication. A total of 392 records were published in 96 sources mainly from Brazil, Spain, and Turkey. Research collaboration networks between countries and authors were performed. Based on document co-citation, five large research clusters were identified and analyzed. The youngest research frontier emphasized on nanoparticles. With this study, how research trends evolve over years was demonstrated. Thus, international collaboration could be enhanced, and a promising field could be developed.
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Affiliation(s)
- Ghada Tagorti
- Department of Biology, Faculty of Sciences, Akdeniz University, 07058 Campus, Antalya, Turkey
| | - Bülent Kaya
- Department of Biology, Faculty of Sciences, Akdeniz University, 07058 Campus, Antalya, Turkey
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Teixeira da Silva T, Braga Martins J, Do Socorro de Brito Lopes M, de Almeida PM, Silva Sá JL, Alline Martins F. Modulating effect of DL-kavain on the mutagenicity and carcinogenicity induced by doxorubicin in Drosophila melanogaster. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2021; 84:769-782. [PMID: 34176449 DOI: 10.1080/15287394.2021.1942354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Kavain, kavalactone, present in Piper methysticum exhibits anticonvulsive, analgesic, anxiolytic, antiepileptic, antithrombotic, anti-inflammatory and antioxidant properties. Given its importance, the aim of the present study was to assess (1) the mutagenic and carcinogenicity of kavain administered alone and (2) the antimutagenic and anticarcinogenic potential when administered simultaneously with the chemotherapeutic drug doxorubicin (DXR) using the Somatic Mutation and Recombination Test (SMART) and Epithelial Tumor Test (ETT) using Drosophila melanogaster as a model system. Third-stage larvae from a standard (ST) and high metabolic bioactivation (HB) crosses were treated with different kavain concentrations (32, 64 or 128 μg/ml), alone or in conjunction with DXR (0.125 mg/ml). In ST descendants, kavain produced no significant mutagenic or recombinogenic effects. In the HB cross, mutagenic activity was observed at kavain concentrations of 64 and 128 μg/ml. In the DXR and kavain co-treatment, a modulating effect of the DXR-mediated mutagenic response dependent upon the concentration was detected in both crosses. In ETT, no marked carcinogenic or anticarcinogenic activity was noted for kavain. However, when kavain was combined with DXR synergistic induction of tumors by the chemotherapeutic drug occurred indicating that kavain enhanced the carcinogenic action of DXR.
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Affiliation(s)
- Thaís Teixeira da Silva
- Department of Chemistry, State Post-Graduation Program in Chemistry, University of Piauí, Teresina, Piauí, Brazil
- Laboratory of Genetics, Center for Natural Sciences, State University of Piauí, Teresina, Piauí, Brazil
| | - Júlia Braga Martins
- Laboratory of Genetics, Center for Natural Sciences, State University of Piauí, Teresina, Piauí, Brazil
| | | | - Pedro Marcos de Almeida
- Laboratory of Genetics, Center for Natural Sciences, State University of Piauí, Teresina, Piauí, Brazil
- Department of Genetics, Health Sciences Center, State University of Piauí, Teresina, Piauí, Brazil
| | - José Luiz Silva Sá
- Department of Chemistry, State Post-Graduation Program in Chemistry, University of Piauí, Teresina, Piauí, Brazil
| | - Francielle Alline Martins
- Department of Chemistry, State Post-Graduation Program in Chemistry, University of Piauí, Teresina, Piauí, Brazil
- Laboratory of Genetics, Center for Natural Sciences, State University of Piauí, Teresina, Piauí, Brazil
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Marchete R, Oliveira S, Bagne L, Silva JIDS, Valverde AP, Aro AAD, Figueira MM, Fronza M, Bressam TM, Goes VFFD, Gaspari de Gaspi FOD, Dos Santos GMT, Andrade TAM. Anti-inflammatory and antioxidant properties of Alternanthera brasiliana improve cutaneous wound healing in rats. Inflammopharmacology 2021; 29:1443-1458. [PMID: 34546478 DOI: 10.1007/s10787-021-00862-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/01/2021] [Indexed: 01/13/2023]
Abstract
Alternanthera brasiliana (L.) Kuntze is recognized for its healing properties; however, its therapeutic effects remain unclear. Therefore, our study aimed to elucidate the wound healing activities of A. brasiliana using in vitro and in vivo assays. In vitro assays were used to evaluate the antibacterial, anti-inflammatory, and antioxidant effects of A. brasiliana extract. For the in vivo study, two dorsal excisions were established in Wistar rats using a punch (1.5 cm in diameter), which were topically treated daily with 2% carbopol gel (Ctrl group) or 20% hydroalcoholic plant extract with 2% carbopol gel (A. brasiliana-Ab group). After the 2nd, 7th, 14th, and 21st days, inflammation, oxidative damage, antioxidants, angiogenesis, tissue formation, and re-epithelialization were evaluated. In vitro, Ab reduced nitric oxide, anion superoxide, and pro-inflammatory cytokine production. In vivo, Ab presented lower levels of inflammatory infiltrate, although increased levels of IL-1β and TGF-β1 were observed. The plant extract controlled oxidative damage by antioxidants, which favored angiogenesis, collagenesis, and wound re-epithelialization. Thus, the topical application of the hydroalcoholic extract of 20% A. brasiliana was distinguished by its important anti-inflammatory and antioxidant activities both in vivo and in vitro. The plant extract also stimulated angiogenesis and tissue formation, accelerating total re-epithelization, which is promising for wound healing.
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Affiliation(s)
- Rogério Marchete
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Sarah Oliveira
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Leonardo Bagne
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Jennyffer Ione de Souza Silva
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Ana Paula Valverde
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Andrea Aparecida de Aro
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Mariana Moreira Figueira
- Graduate Program of Pharmaceutical Sciences, Laboratory of Natural Products, University of Vila Velha-UVV, Comissario Jose Dantas de Melo Ave, 21. Boa Vista, Vila Velha, Espirito Santo, 29102‑920, Brazil
| | - Marcio Fronza
- Graduate Program of Pharmaceutical Sciences, Laboratory of Natural Products, University of Vila Velha-UVV, Comissario Jose Dantas de Melo Ave, 21. Boa Vista, Vila Velha, Espirito Santo, 29102‑920, Brazil
| | - Thainá Mikaela Bressam
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Vivian Fernandes Furletti de Goes
- Graduate Program in Odontology, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, SP, 13607-339, Brazil
| | - Fernanda Oliveira de Gaspari de Gaspi
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil.,Sao Leopoldo Mandic Faculty, Dona Renata Ave. Centro. 71, Araras, Sao Paulo, 13606-134, Brazil
| | - Gláucia Maria Tech Dos Santos
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil
| | - Thiago Antônio Moretti Andrade
- Graduate Program in Biomedical Sciences, University Center of Herminio Ometto Foundation-FHO, Dr. Maximiliano Baruto Ave, 500. Jardim Universitario, Araras, Sao Paulo, 13607-339, Brazil.
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Mahmood R, Khurshid A, Yousaf MS, Aalam M, Salman M, Ikram M. Effect of vitamin A as a neoadjuvant agent in chemotherapy and photodynamic therapy of Rhabdomyosarcoma cells. Photodiagnosis Photodyn Ther 2020; 32:102088. [PMID: 33157333 DOI: 10.1016/j.pdpdt.2020.102088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/21/2020] [Accepted: 10/30/2020] [Indexed: 10/23/2022]
Abstract
Combinational therapy is among the most used treatment modality's to increase cancer treatment efficacy. It may also reduce side effects, treatment time, and development of drug resistance. The effects of different analogues of vitamin A (VA) as neoadjuvant agent were observed in this study with chemotherapeutic drugs (doxorubicin and methotrexate) and photodynamic therapy (PDT) using 5-ALA and Photogem as photosensitizers in RD cells. The uptake time of photosensitizer was optimized by means of spectrophotometric measurements. Diode laser (λ = 635 nm ± 1 nm) was used as an illumination source for PDT. Responses of administered drugs were assessed by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. VA and its analogues exert prophylactic and therapeutic effects. Protective or antagonistic effects (CI > 1) were observed in each of the case. These results propose that the use of VA as a neoadjuvant agent in combinational therapeutic modalities may reduce the efficacy of cancer treatment protocols as well as the existing side effects. Thus, VA is not the successful drug for combinational therapies and under treatment cancer patients should try to avoid its use with oxidative stress induction therapies (e.g. PDT, Radiotherapy, chemotherapy).
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Affiliation(s)
- R Mahmood
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan.
| | - A Khurshid
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan; Biophotonics Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
| | - M S Yousaf
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
| | - M Aalam
- Department of Virology and Immunology, National Institute of Health, Park Road, Islamabad, Pakistan
| | - M Salman
- Department of Virology and Immunology, National Institute of Health, Park Road, Islamabad, Pakistan
| | - M Ikram
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan; Biophotonics Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
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Nagpal I, Abraham SK. Protective effects of tea polyphenols and β-carotene against γ-radiation induced mutation and oxidative stress in Drosophila melanogaster. Genes Environ 2017; 39:24. [PMID: 29118865 PMCID: PMC5664826 DOI: 10.1186/s41021-017-0084-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 09/01/2017] [Indexed: 12/02/2022] Open
Abstract
Background The commonly consumed antioxidants β-carotene and tea polyphenols were used to assess their protective effects against γ-radiation induced sex-linked recessive lethal (SLRL) mutation and oxidative stress in Drosophila melanogaster. Third instar larvae and adult males of wild-type Oregon-K (ORK) were fed on test agents for 24 and 72 h respectively before exposure to 10Gy γ-irradiation. The treated/control flies were used to assess the induction of SLRLs. We also evaluated antioxidant properties of these phytochemicals in the third instar larvae. Results Different stages of spermatogenesis in adult males showed a decrease in γ-radiation induced SLRL frequencies upon co-treatment with test agents. A similar trend was observed in larvae. Furthermore, a significant increase in antioxidant enzymatic activities with a decrease in malondialdehyde content was observed. Conclusion β-carotene and tea polyphenols have exerted antigenotoxic and antioxidant effects in Drosophila. This study demonstrated the suitability of Drosophila as an alternative to mammalian testing for evaluating the antigenotoxic and antioxidant activity of natural products.
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Affiliation(s)
- Isha Nagpal
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Suresh K Abraham
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067 India
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Saturnino RS, Machado NM, Lopes JC, Nepomuceno JC. Assessment of the mutagenic, recombinogenic, and carcinogenic potential of amphotericin B in somatic cells of Drosophila melanogaster. Drug Chem Toxicol 2017; 41:9-15. [PMID: 28274136 DOI: 10.1080/01480545.2016.1188302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Amphotericin B (AmB) is an antifungal antibiotic extracted from Streptomyces nodosus. Its fungicidal activity depends primarily on its binding to the sterol group that is present in fungal membranes. In view of the toxicity of this drug, the purpose of this study was to evaluate its mutagenic, carcinogenic, and recombinogenic activity, based on the wing somatic mutation and recombination test (SMART) and the epithelial tumor detection test (wts) applied to Drosophila melanogaster. Larvae were chronically treated with different concentrations of AmB (0.01, 0.02, and 0.04 mg/mL). The results revealed that AmB is a promutagen exhibiting increase in the number of spots on individuals from high bioactivation (HB) cross with a high level of cytochrome P450. The results also indicate that the main genotoxic event induced by AmB is recombinogenicity. Homologous recombination can act as a determinant at different stages of carcinogenesis. For verification of carcinogenic potential of this compound, larvae from the wts/mwh and wts/ORR, flr3 were treated with the same three AmB concentrations used in the SMART assay. The results did not provide evidence that AmB has carcinogenic potential in wts/mwh individuals. However, individuals from wts/ORR, flr3 developed tumors at the highest concentration tested.
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Affiliation(s)
- Rosiane Soares Saturnino
- a Institute of Genetics and Biochemistry, Federal University of Uberlândia , Uberlândia , Brazil and.,b Laboratory of Cytogenetics and Mutagenesis , University Center of Patos de Minas , Patos de Minas , Brazil
| | - Nayane Moreira Machado
- a Institute of Genetics and Biochemistry, Federal University of Uberlândia , Uberlândia , Brazil and.,b Laboratory of Cytogenetics and Mutagenesis , University Center of Patos de Minas , Patos de Minas , Brazil
| | - Jeyson Cesary Lopes
- a Institute of Genetics and Biochemistry, Federal University of Uberlândia , Uberlândia , Brazil and.,b Laboratory of Cytogenetics and Mutagenesis , University Center of Patos de Minas , Patos de Minas , Brazil
| | - Júlio César Nepomuceno
- a Institute of Genetics and Biochemistry, Federal University of Uberlândia , Uberlândia , Brazil and.,b Laboratory of Cytogenetics and Mutagenesis , University Center of Patos de Minas , Patos de Minas , Brazil
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Dueñas-García IE, Heres-Pulido ME, Arellano-Llamas MR, De la Cruz-Núñez J, Cisneros-Carrillo V, Palacios-López CS, Acosta-Anaya L, Santos-Cruz LF, Castañeda-Partida L, Durán-Díaz A. Lycopene, resveratrol, vitamin C and FeSO 4 increase damage produced by pro-oxidant carcinogen 4-nitroquinoline-1-oxide in Drosophila melanogaster: Xenobiotic metabolism implications. Food Chem Toxicol 2017; 103:233-245. [PMID: 28202360 DOI: 10.1016/j.fct.2017.02.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 01/27/2017] [Accepted: 02/05/2017] [Indexed: 12/12/2022]
Abstract
4-nitroquinoline-1-oxide (4-NQO) is a pro-oxidant carcinogen bioactivated by xenobiotic metabolism (XM). We investigated if antioxidants lycopene [0.45, 0.9, 1.8 μM], resveratrol [11, 43, 172 μM], and vitamin C [5.6 mM] added or not with FeSO4 [0.06 mM], modulate the genotoxicity of 4-NQO [2 mM] with the Drosophila wing spot test standard (ST) and high bioactivation (HB) crosses, with inducible and high levels of cytochromes P450, respectively. The genotoxicity of 4-NQO was higher when dissolved in an ethanol - acetone mixture. The antioxidants did not protect against 4-NQO in any of both crosses. In the ST cross, resveratrol [11 μM], vitamin C and FeSO4 resulted in genotoxicity; the three antioxidants and FeSO4 increased the damage of 4-NQO. In the HB cross, none of the antioxidants, neither FeSO4, were genotoxic. Only resveratrol [172 μM] + 4-NQO increased the genotoxic activity in both crosses. We concluded that the effects of the antioxidants, FeSO4 and the modulation of 4-NQO were the result of the difference of Cyp450s levels, between the ST and HB crosses. We propose that the basal levels of the XM's enzymes in the ST cross interacted with a putative pro-oxidant activity of the compounds added to the pro-oxidant effects of 4-NQO.
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Affiliation(s)
- I E Dueñas-García
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - M E Heres-Pulido
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico.
| | - M R Arellano-Llamas
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - J De la Cruz-Núñez
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - V Cisneros-Carrillo
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - C S Palacios-López
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - L Acosta-Anaya
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - L F Santos-Cruz
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - L Castañeda-Partida
- Genetic Toxicology Laboratory, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
| | - A Durán-Díaz
- Mathematics, Biology, FES Iztacala, Universidad Nacional Autónoma de México (UNAM), Los Barrios N° 1, Los Reyes Iztacala, C.P. 54090, Tlalnepantla, Estado de México, Mexico
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Silva-Oliveira RG, Orsolin PC, Nepomuceno JC. Modulating effect of losartan potassium on the mutagenicity and recombinogenicity of doxorubicin in somatic cells of Drosophila melanogaster. Food Chem Toxicol 2016; 95:211-8. [PMID: 27394655 DOI: 10.1016/j.fct.2016.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 06/29/2016] [Accepted: 07/04/2016] [Indexed: 10/21/2022]
Abstract
Losartan potassium is an antihypertensive drug in the angiotensin II receptor antagonist (ARA) class. Some studies claim that, in addition to regulating blood pressure, this class of drug has anticancer properties. The objective of this study was to evaluate the genotoxic and antigenotoxic potential of losartan potassium using the SMART (Somatic Mutation and Recombination Test) assay on the somatic cells of Drosophila melanogaster, as well as the possible modulating effects of this drug, when associated with doxorubicin (DXR). Third instar larvae, descendents of standard and high bioactivation (ST and HB) crosses, were chronically treated with different concentrations of losartan potassium (0.25; 0.5; 1; 2; and 4 mM) alone or in association (co-treatment) with doxorubicin (DXR 0.125 mg/mL). The results showed an absence of a mutagenic effect of losartan potassium. In the co-treatment of losartan with DXR, the results showed that losartan is capable of reducing the number of mutant spots induced by DXR without altering the recombinogenic effect of the chemotherapeutic agent. Antiproliferative action appears to be the main mechanism involved in reducing the frequency of mutant spots and consequent modulation of alterations induced by DXR, although this parameter has not been directly assessed in this study.
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Affiliation(s)
- R G Silva-Oliveira
- Universidade Federal de Uberlândia, Institute of Genetics and Biochemistry, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil; Centro Universitário de Patos de Minas, Laboratory for Cytogenetics and Mutagenesis, Patos de Minas, Minas Gerais, Brazil.
| | - P C Orsolin
- Universidade Federal de Uberlândia, Institute of Genetics and Biochemistry, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil; Centro Universitário de Patos de Minas, Laboratory for Cytogenetics and Mutagenesis, Patos de Minas, Minas Gerais, Brazil
| | - J C Nepomuceno
- Universidade Federal de Uberlândia, Institute of Genetics and Biochemistry, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil; Centro Universitário de Patos de Minas, Laboratory for Cytogenetics and Mutagenesis, Patos de Minas, Minas Gerais, Brazil
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12
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García-Rodríguez MDC, Hernández-Cortés LM, Altamirano-Lozano MA. In Vivo Effects of Vanadium Pentoxide and Antioxidants (Ascorbic Acid and Alpha-Tocopherol) on Apoptotic, Cytotoxic, and Genotoxic Damage in Peripheral Blood of Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:6797851. [PMID: 27413422 PMCID: PMC4930826 DOI: 10.1155/2016/6797851] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 04/11/2016] [Accepted: 05/16/2016] [Indexed: 12/31/2022]
Abstract
This study was conducted to investigate the effects of vanadium pentoxide (V2O5), ascorbic acid (AA), and alpha-tocopherol (α-TOH) on apoptotic, cytotoxic, and genotoxic activity. Groups of five Hsd:ICR mice were treated with the following: (a) vehicle, distilled water; (b) vehicle, corn oil; (c) AA, 100 mg/kg intraperitoneally (ip); (d) α-TOH, 20 mg/kg by gavage; (e) V2O5, 40 mg/kg by ip injection; (f) AA + V2O5; and (g) α-TOH + V2O5. Genotoxic damage was evaluated by examining micronucleated polychromatic erythrocytes (MN-PCE) obtained from the caudal vein at 0, 24, 48, and 72 h after treatments. Induction of apoptosis and cell viability were assessed at 48 h after treatment in nucleated cells of peripheral blood. Treatment with AA alone reduced basal MN-PCE, while V2O5 treatment marginally increased MN-PCE at all times after injection. Antioxidants treatments prior to V2O5 administration decreased MN-PCE compared to the V2O5 group, with the most significant effect in the AA + V2O5 group. The apoptotic cells increased with all treatments, suggesting that this process may contribute to the elimination of the cells with V2O5-induced DNA damage (MN-PCE). The necrotic cells only increased in the V2O5 group. Therefore, antioxidants such as AA and α-TOH can be used effectively to protect or reduce the genotoxic effects induced by vanadium compounds like V2O5.
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Affiliation(s)
- María del Carmen García-Rodríguez
- Unidad de Investigación en Genética y Toxicología Ambiental (UNIGEN), Facultad de Estudios Superiores “Zaragoza”, Universidad Nacional Autónoma de México (UNAM), P.O. Box 9-020, 15000 México, DF, Mexico
| | - Lourdes Montserrat Hernández-Cortés
- Unidad de Investigación en Genética y Toxicología Ambiental (UNIGEN), Facultad de Estudios Superiores “Zaragoza”, Universidad Nacional Autónoma de México (UNAM), P.O. Box 9-020, 15000 México, DF, Mexico
| | - Mario Agustín Altamirano-Lozano
- Unidad de Investigación en Genética y Toxicología Ambiental (UNIGEN), Facultad de Estudios Superiores “Zaragoza”, Universidad Nacional Autónoma de México (UNAM), P.O. Box 9-020, 15000 México, DF, Mexico
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13
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Modulating effect of simvastatin on the DNA damage induced by doxorubicin in somatic cells of Drosophila melanogaster. Food Chem Toxicol 2016; 90:10-7. [DOI: 10.1016/j.fct.2016.01.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/15/2016] [Accepted: 01/26/2016] [Indexed: 11/23/2022]
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14
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Orsolin PC, Silva-Oliveira RG, Nepomuceno JC. Modulating effect of synthetic statins against damage induced by doxorubicin in somatic cells of Drosophila melanogaster. Food Chem Toxicol 2015; 81:111-119. [PMID: 25846503 DOI: 10.1016/j.fct.2015.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 03/30/2015] [Accepted: 04/01/2015] [Indexed: 11/25/2022]
Abstract
The competitive inhibitors of HMG-CoA reductase, popularly known as statins, exert pleiotropic effects, which result from the ability of statins to inhibit the synthesis of isoprenoids, which are fundamental for the functioning of proteins responsible for intracellular signaling. Some recent studies suggest an important role associated with the use of antineoplastic atorvastatin and rosuvastatin, the statins most widely used today. In this study, the Drosophila wing spot test was used to evaluate possible protective effects of atorvastatin and rosuvastatin against damage induced by DXR. Larvae were chronically treated with negative control (ethanol 5%), positive control (DXR 0.125 mg/mL) and five different concentrations of atorvastatin and rosuvastatin. The results demonstrated absence of a mutagenic effect for the two statins tested. The analysis of the descendants co-treated with DXR and atorvastatin/rosuvastatin revealed a modulatory effect of these statins on damage induced by DXR. This effect was verified in all concentrations tested in the descendants of the ST and HB crosses treated with rosuvastatin, and only in descendants of the HB cross treated with atorvastatin. Induction of apoptosis and antioxidant activity appear to be the main mechanisms involved in reducing the frequency of mutant spots and consequent modulation of the damage induced by DXR.
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Affiliation(s)
- P C Orsolin
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil
| | - R G Silva-Oliveira
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil
| | - J C Nepomuceno
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil; Laboratório de Citogenética e Mutagênese, Centro Universitário de Patos de Minas, Patos de Minas, Minas Gerais, Brazil.
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15
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Assessment of the protective role of vitamin E in atrazine toxicity on the testis of adult albino rats. ACTA ACUST UNITED AC 2014. [DOI: 10.1097/01.ehx.0000452051.31994.b0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Boriollo MFG, Resende MR, da Silva TA, Públio JY, Souza LS, Dias CTDS, de Mello Silva Oliveira N, Fiorini JE. Evaluation of the mutagenicity and antimutagenicity of Ziziphus joazeiro Mart. bark in the micronucleus assay. Genet Mol Biol 2014; 37:428-38. [PMID: 25071409 PMCID: PMC4094613 DOI: 10.1590/s1415-47572014000300016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 03/17/2014] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the mutagenicity (clastogenicity/aneugenicity) of a glycolic extract of Ziziphus joazeiro bark (GEZJ) by the micronucleus assay in mice bone marrow. Antimutagenic activity was also assessed using treatments associated with GEZJ and doxorubicin (DXR). Mice were evaluated 24–48 h after exposure to positive (N-nitroso-N-ethylurea, NEU - 50 mg.kg−1 and DXR - 5 mg.kg−1) and negative (150 mM NaCl) controls, as well as treatment with GEZJ (0.5–2 g.kg−1), GEZJ (2 g.kg−1) + NEU and GEZJ (2 g.kg−1) + DXR. There were no significant differences in the frequencies of micronucleated polychromatic erythrocytes in mice treated with GEJZ and GEJZ + DXR compared to the negative controls, indicating that GEZJ was not mutagenic. Analysis of the polychromatic:normochromatic erythrocyte ratio revealed significant differences in the responses to doses of 0.5 g.kg−1 and 1–2 g.kg−1 and the positive control (NEU). These results indicated no systemic toxicity and moderate toxicity at lower and higher doses of GEZJ. The lack of mutagenicity and systemic toxicity in the antimutagenic assays, especially for treatment with GEZJ + DXR, suggested that phytochemical compounds in Z. joazeiro bark attenuated DXR-induced mutagenicity and the moderate systemic toxicity of a high dose of Z. joazeiro bark (2 g.kg−1). Further studies on the genotoxicity of Z. joazeiro extracts are necessary to establish the possible health risk in humans and to determine the potential as a chemopreventive agent for therapeutic use.
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Affiliation(s)
- Marcelo Fabiano Gomes Boriollo
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Marielly Reis Resende
- Departamento de Ciências Exatas , Escola de Agricultura "Luiz de Queiroz" , Universidade de São Paulo , Piracicaba, SP , Brazil
| | - Thaísla Andrielle da Silva
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Juliana Yoshida Públio
- Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Luiz Silva Souza
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Carlos Tadeu Dos Santos Dias
- Departamento de Ciências Exatas , Escola de Agricultura "Luiz de Queiroz" , Universidade de São Paulo , Piracicaba, SP , Brazil
| | - Nelma de Mello Silva Oliveira
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Laboratório de Ecotoxicologia e Microbiologia Ambiental , Faculdade de Tecnologia , Universidade Estadual de Campinas , Limeira, SP , Brazil
| | - João Evangelista Fiorini
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
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17
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Franchi LP, Guimarães NN, De Andrade LR, De Andrade HHR, Lehmann M, Dihl RR, Cunha KS. Antimutagenic and antirecombinagenic activities of noni fruit juice in somatic cells of Drosophila melanogaster. AN ACAD BRAS CIENC 2013; 85:585-94. [PMID: 23828338 DOI: 10.1590/s0001-37652013000200008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 12/05/2011] [Indexed: 11/21/2022] Open
Abstract
Noni, a Hawaiian name for the fruit of Morinda citrifolia L., is a traditional medicinal plant from Polynesia widely used for the treatment of many diseases including arthritis, diabetes, asthma, hypertension and cancer. Here, a commercial noni juice (TNJ) was evaluated for its protective activities against the lesions induced by mitomycin C (MMC) and doxorrubicin (DXR) using the Somatic Mutation and Recombination Test (SMART) in Drosophila melanogaster. Three-day-old larvae, trans-heterozygous for two genetic markers (mwh and flr3 ), were co-treated with TNJ plus MMC or DXR. We have observed a reduction in genotoxic effects of MMC and DXR caused by the juice. TNJ provoked a marked decrease in all kinds of MMC- and DXR-induced mutant spots, mainly due to its antirecombinagenic activity. The TNJ protective effects were concentration-dependent, indicating a dose-response correlation, that can be attributed to a powerful antioxidant and/or free radical scavenger ability of TNJ.
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Affiliation(s)
- Leonardo P Franchi
- Laboratório de Genética Toxicológica, Departamento de Bioquímica e Biologia Molecular, ICB, Universidade Federal de Goiás/UFG, Goiânia, GO, Brasil
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18
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Orsolin PC, Silva-Oliveira RG, Nepomuceno JC. Assessment of the mutagenic, recombinagenic and carcinogenic potential of orlistat in somatic cells of Drosophila melanogaster. Food Chem Toxicol 2012; 50:2598-604. [PMID: 22621838 DOI: 10.1016/j.fct.2012.05.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 05/02/2012] [Accepted: 05/04/2012] [Indexed: 11/26/2022]
Abstract
In this study the mutagenic, recombinagenic, carcinogenic and anticarcinogenic potential of orlistat was assessed using the somatic mutation and recombination test (SMART) and the epithelial tumor detection test (wts). The experiments were conducted on Drosophila melanogaster. In the assessment using SMART, larvae, descendants from the standard (ST) cross and the high bioactivation (HB) cross, were treated chronically with three orlistat concentrations. The results revealed a recombinagenic effect, associated with orlistat, in the descendants of the HB cross, at all three levels of concentration. Homologous recombination can function as a determinant at different stages of carcinogenesis. For verification, larvae from the wts test, descendants of the wts/TM3 virgin female and mwh/mwh male cross, were treated with the same three orlistat concentrations separately and in association with mitomicin C (0.1mM). The results did not, however, provide evidence that orlistat has carcinogenic potential nor was it associated with the reduction of tumors induced by mitomicin C in D. melanogaster.
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Affiliation(s)
- P C Orsolin
- Universidade Federal de Uberlândia, Instituto de Genética e Bioquímica, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil
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19
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Effect of mate tea (Ilex paraguariensis) supplementation on oxidative stress biomarkers and LDL oxidisability in normo- and hyperlipidaemic humans. J Funct Foods 2011. [DOI: 10.1016/j.jff.2011.04.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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20
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Costa WF, de Oliveira AB, Nepomuceno JC. Genotoxicity of lapachol evaluated by wing spot test of Drosophila melanogaster. Genet Mol Biol 2010; 33:558-63. [PMID: 21637432 PMCID: PMC3036112 DOI: 10.1590/s1415-47572010005000070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Accepted: 04/05/2010] [Indexed: 11/22/2022] Open
Abstract
This study investigated the genotoxicity of Lapachol (LAP) evaluated by wing spot test of Drosophila melanogaster in the descendants from standard (ST) and high bioactivation (HB) crosses. This assay detects the loss of heterozygosity of marker genes expressed phenotypically on the fly's wings. Drosophila has extensive genetic homology to mammals, which makes it a suitable model organism for genotoxic investigations. Three-day-old larvae from ST crosses (females flr3/TM3, Bds x males mwh/mwh), with basal levels of the cytochrome P450 and larvae of high metabolic bioactivity capacity (HB cross) (females ORR; flr3/TM3, Bds x males mwh/mwh), were used. The results showed that LAP is a promutagen, exhibiting genotoxic activity in larvae from the HB cross. In other words, an increase in the frequency of spots is exclusive of individuals with a high level of the cytochrome P450. The results also indicate that recombinogenicity is the main genotoxic event induced by LAP.
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Affiliation(s)
- Wender Ferreira Costa
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, MG Brazil
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21
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Singh M, Sandhir R, Kiran R. Oxidative stress induced by atrazine in rat erythrocytes: mitigating effect of vitamin E. Toxicol Mech Methods 2010; 20:119-26. [PMID: 20136348 DOI: 10.3109/15376511003606253] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present study investigates the propensity of atrazine to induce oxidative stress and its possible attenuation by vitamin E in rat erythrocytes, which is a convenient model to understand the oxidative damage induced by various xenobiotics. Experimental animals were administered atrazine (300 mg/kg body weight, daily) and/or vitamin E (100 mg/kg body weight, daily) orally for a period of 7, 14, and 21 days. Results indicated that the reduced glutathione (GSH) content of the erythrocytes of atrazine treated rats was significantly decreased as compared to the control group. Co-administration of vitamin E along with atrazine restored the GSH content of erythrocytes nearly to control levels. The activities of antioxidant enzymes such as superoxide dismutase, catalase, glutathione peroxidase, and glutathione-s-transferase were found to be increased significantly in the erythrocytes accompanied by a decrease in the activity of the glucose-6-phosophate dehydrogenase, following atrazine exposure. On the other hand, when vitamin E was co-administered along with atrazine, activities of these enzymes were found to be restored significantly. In conclusion, results of the study demonstrated that atrazine induced oxidative stress in rat erythrocytes, in terms of increased activities of the various antioxidant enzymes, and decreased content of reduced glutathione. However, vitamin E administration ameliorated the effects of atrazine, suggesting that vitamin E is a potential antioxidant against atrazine-induced oxidative stress.
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Affiliation(s)
- Mohan Singh
- Department of Biochemistry, Basic Medical Science Block, Panjab University, Chandigarh 160014, India.
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22
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Granados-Principal S, Quiles JL, Ramirez-Tortosa CL, Sanchez-Rovira P, Ramirez-Tortosa MC. New advances in molecular mechanisms and the prevention of adriamycin toxicity by antioxidant nutrients. Food Chem Toxicol 2010; 48:1425-38. [PMID: 20385199 DOI: 10.1016/j.fct.2010.04.007] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 03/29/2010] [Accepted: 04/06/2010] [Indexed: 12/29/2022]
Abstract
Anthracyclines (doxorubicin, daunorubicin, epirubicin, and idarubicin) are currently the most effective group of anti-neoplastic drugs used in clinical practice. Of these, doxorubicin (also called adriamycin) is a key chemotherapeutic agent in cancer treatment, although its use is limited as a consequence of the chronic and acute toxicity associated with this drug. The molecular mechanisms of doxorubicin account for both the anti-cancer and the toxic side effects. Many antioxidants have been assayed, with positive or negative results, to prevent the toxicity of doxorubicin. The present review has two main goals: (1) to report the latest findings regarding the molecular mechanisms of doxorubicin toxicity; (2) to update our understanding of the role of natural antioxidants in preventive therapy against doxorubicin-induced toxicity. This review provides new evidence for the chemoprevention of doxorubicin toxicity, making use of natural antioxidants - in particular vitamin E, vitamin C, coenzyme Q, carotenoids, vitamin A, flavonoids, polyphenol, resveratrol, antioxidant from virgin olive oil and selenium - and offers new insights into the molecular mechanisms of doxorubicin toxicity with respect to DNA damage, free radicals and other parameters.
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Affiliation(s)
- Sergio Granados-Principal
- Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Technology José Mataix Verdú, University of Granada, Granada, Spain
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Singh M, Sandhir R, Kiran R. Alterations in Ca2+ homeostasis in rat erythrocytes with atrazine treatment: positive modulation by vitamin E. Mol Cell Biochem 2010; 340:231-8. [DOI: 10.1007/s11010-010-0422-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Accepted: 02/10/2010] [Indexed: 11/28/2022]
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Passos D, Ferreira H, Vieira I, Nunes W, Felcio L, Silva E, Vale C, Duarte S, Silva E, Carvalho S. Modulatory effect of Palicourea coriacea (Rubiaceae) against damage induced by doxorubicin in somatic cells of Drosophila melanogaster. GENETICS AND MOLECULAR RESEARCH 2010; 9:1153-62. [DOI: 10.4238/vol9-2gmr801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Aydemir N, Sevim N, Celikler S, Vatan O, Bilaloglu R. Antimutagenicity of amifostine against the anticancer drug fotemustine in the Drosophila somatic mutation and recombination (SMART) test. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2009; 679:1-5. [DOI: 10.1016/j.mrgentox.2009.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2008] [Revised: 07/03/2009] [Accepted: 08/14/2009] [Indexed: 10/20/2022]
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Jedlicka P, Cvacka J, Sláma K. Juvenile hormone-stimulated synthesis of acyl-glycerols and vitamin E in female accessory sexual glands of the fire bug, Pyrrhocoris apterus L. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2009; 72:48-59. [PMID: 19557854 DOI: 10.1002/arch.20322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Secretory cells of the female accessory sexual glands (AG) of P. apterus grow and produce yellow oily exocrine secretion in response to stimulation by endogenous juvenile hormone (JH) or exogenous treatments by JH analogues. The secretion determines the property of future egg shells by coating the chorion surface of the oocytes that are passing individually through the common uterus during oviposition. Diapausing females with a physiologically inhibited endocrine system or females with artificially removed hormonal sources show inactive ovaries and empty AG without the secretory products. Ovary-ectomised females with the intact neuroendocrine system develop hypertrophic AG loaded with the oily secretion. This shows that there is no direct dependence between formation of the oily secretion in AG and ovarian growth. Chemical analysis of the secretory products revealed the presence of acetylated glycerols, with the most abundant stearoyl-diacetyl-glycerol, stearoyl-acetyl-propionyl-glycerol, and the corresponding derivatives of arachidonic acid. In addition to this, the JH-activated secretory cells of AG also produced gamma- and delta-tocopherols. The possible antioxidant or antimutagenic action of these vitamin E compounds in insect reproduction has been emphasized.
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Affiliation(s)
- Pavel Jedlicka
- Biological Centre of Czech Academy of Sciences, Institute of Entomology, Ceské Budejovice, Czech Republic.
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27
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de Rezende AAA, Graf U, Guterres ZDR, Kerr WE, Spanó MA. Protective effects of proanthocyanidins of grape (Vitis vinifera L.) seeds on DNA damage induced by Doxorubicin in somatic cells of Drosophila melanogaster. Food Chem Toxicol 2009; 47:1466-72. [DOI: 10.1016/j.fct.2009.03.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Revised: 03/06/2009] [Accepted: 03/24/2009] [Indexed: 11/25/2022]
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28
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Dutra ES, Dias CD, de Araújo BC, Castro AJS, Nepomuceno JC. Effect of organic tomato (Lycopersicon esculentum) extract on the genotoxicity of doxorubicin in the Drosophila wing spot test. Genet Mol Biol 2009; 32:133-7. [PMID: 21637658 PMCID: PMC3032965 DOI: 10.1590/s1415-47572009005000008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2008] [Accepted: 06/09/2008] [Indexed: 12/03/2022] Open
Abstract
The consumption of organic tomatoes (ORTs) reduces the risk of harmful effects to humans and the environment caused by exposure to toxic agrochemicals. In this study, we used the somatic mutation and recombination test (SMART) of wing spots in Drosophila melanogaster to evaluate the genotoxicity of ORT and the effect of cotreatment with ORT on the genotoxicity of Doxorubicin® (DXR, a cancer chemotherapeutic agent) that is mediated by free radical formation. Standard (ST) cross larvae were treated chronically with solutions containing 25%, 50% or 100% of an aqueous extract of ORT, in the absence and presence of DXR (0.125 mg/mL), and the number of mutant spots on the wings of emergent flies was counted. ORT alone was not genotoxic but enhanced the toxicity of DXR when administered concomitantly with DXR. The ORT-enhanced frequency of spots induced by DXR may have resulted from the interaction of ORT with the enzymatic systems that catalyze the metabolic detoxification of this drug.
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Affiliation(s)
- Elaine S Dutra
- Laboratório de Mutagênese, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, MG Brazil
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Pereira DG, Antunes LM, Graf U, Spanó MA. Protection by Panax ginseng C.A. Meyer against the genotoxicity of doxorubicin in somatic cells of Drosophila melanogaster. Genet Mol Biol 2008. [DOI: 10.1590/s1415-47572008000500024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Patenkovic A, Stamenkovic-Radak M, Banjanac T, Andjelkovic M. Antimutagenic effect of sage tea in the wing spot test of Drosophila melanogaster. Food Chem Toxicol 2008; 47:180-3. [PMID: 19022328 DOI: 10.1016/j.fct.2008.10.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2007] [Revised: 10/20/2008] [Accepted: 10/24/2008] [Indexed: 11/29/2022]
Abstract
The present study assayed the antimutagenic potential of Salvia officinalis (sage) in the form of tea infusion, by the somatic mutation and recombination test (SMART) on Drosophila melanogaster. The use of herbal infusions is much common in the human diet, so the aim of the present study was to estimate the antimutagenic effects of the S. officinalis tea rather than essential oils. Methyl methanesulphonate (MMS) was used as the mutagen and positive control. Several types of treatment were performed: short acute treatment with sage infusion or MMS, longer (chronic) treatment with sage solution or MMS, and two combined treatments, i.e. short treatment with sage followed by a longer treatment with MMS and vice versa. Sage infusion used in our experiments showed a clear antimutagenic effect, reducing the frequency of mutations induced by MMS. The inhibition effect of sage tea is obtained and confirmed when pre- or post-treatments with mutagen were used. The results indicate that although sage in this regime decreases the number of mutation events, it is not efficient enough in case of the 2 h sage pre-treatment. Antioxidant activity, suppression of metabolic activation, could be mechanisms through which sage or some of its components act as desmutagen.
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Affiliation(s)
- Aleksandra Patenkovic
- Institute of Biological Research, University of Belgrade, Despot Stefan Blvd. 142, 11000 Belgrade, Serbia
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Singh M, Kaur P, Sandhir R, Kiran R. Protective effects of vitamin E against atrazine-induced genotoxicity in rats. Mutat Res 2008; 654:145-9. [PMID: 18582598 DOI: 10.1016/j.mrgentox.2008.05.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2007] [Revised: 05/09/2008] [Accepted: 05/24/2008] [Indexed: 11/17/2022]
Abstract
Atrazine (2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine) is one of the most commonly used herbicides to control grasses and weeds. The widespread contamination and persistence of atrazine residues in the environment has resulted in human exposure. Vitamin E is a primary antioxidant that plays an important role in protecting cells against toxicity by inactivating free radicals generated following pesticides exposure. The present study was undertaken to investigate the protective effect of vitamin E against atrazine-induced genotoxicity. Three different methods: gel electrophoresis, comet assay and micronucleus test were used to assess the atrazine-induced genotoxicity and to evaluate the protective effects of vitamin E. Atrazine was administered to male rats at a dose of 300 mg/kg body weight for a period of 7, 14 and 21 days. There was a significant increase (P<0.001) in tail length of comets from blood and liver cells treated with atrazine as compared to controls. Co-administration of vitamin E (100 mg/kg body weight) along with atrazine resulted in decrease in tail length of comets as compared to the group treated with atrazine alone. Micronucleus assay revealed a significant increase (P<0.001) in the frequency of micronucleated cells (MNCs) following atrazine administration. In the animals administrated vitamin E along with atrazine there was a significant decrease in percentage of micronuclei as compared to atrazine treated rats. The increase in frequency of micronuclei in liver cells and tail length of comets confirm genotoxicity induced by atrazine in blood and liver cells. In addition, the findings clearly demonstrate protective effect of vitamin E in attenuating atrazine-induced DNA damage.
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Affiliation(s)
- Mohan Singh
- Department of Biochemistry, Panjab University, Chandigarh 160014, India.
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Inhibitory effects of water extract of propolis on doxorubicin-induced somatic mutation and recombination in Drosophila melanogaster. Food Chem Toxicol 2008; 46:1103-10. [DOI: 10.1016/j.fct.2007.11.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2007] [Revised: 10/26/2007] [Accepted: 11/07/2007] [Indexed: 01/21/2023]
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Ribeiro ML, Arçari DP, Squassoni AC, Pedrazzoli J. Effects of multivitamin supplementation on DNA damage in lymphocytes from elderly volunteers. Mech Ageing Dev 2007; 128:577-80. [PMID: 17884137 DOI: 10.1016/j.mad.2007.08.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Revised: 08/07/2007] [Accepted: 08/09/2007] [Indexed: 11/16/2022]
Abstract
The aim of this study was to evaluate the effect of a mixture of vitamins and minerals on oxidative DNA damage and the resistance of DNA to H(2)O(2)-induced DNA strand breaks in lymphocytes from 80 elderly volunteers ex vivo by means of Comet assay. The intervention with vitamin complex decreased significantly the levels of DNA damage. Our results demonstrate that the vitamin complex was able to decrease H(2)O(2)-induced DNA breakage. Our data suggest that the consumption of some vitamins may reduce the effects of oxidative DNA damage and may be useful for attaining healthy aging.
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Affiliation(s)
- Marcelo Lima Ribeiro
- Unidade Integrada de Farmacologia e Gastroenterologia, Universidade São Francisco, Av. São Francisco de Assis, 218. Jd. São José, Bragança Paulista, SP, Brazil.
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Takeuchi PL, Antunes LMG, Takahashi CS. Evaluation of the clastogenicity and anticlastogenicity of vitamin B6 in human lymphocyte cultures. Toxicol In Vitro 2007; 21:665-70. [PMID: 17320343 DOI: 10.1016/j.tiv.2007.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2006] [Revised: 01/03/2007] [Accepted: 01/05/2007] [Indexed: 11/21/2022]
Abstract
Insufficient intakes of many micronutrients found in fruits and vegetables, such as folic acid, vitamins C and B6 may lead to DNA damage, cancer, and degenerative disease. The investigation of dietary antioxidants is a field of great interest for elucidating mechanisms of mutagenesis/carcinogenesis. The present study was undertaken to investigate the effects of vitamin B6 on the induction of chromosomal aberrations in cultured human lymphocytes and to examine the possible anticlastogenic effect of this vitamin on chromosomal damage induced by the antitumor drug doxorubicin. The results showed that when the cultures treated with vitamin B6 were compared with the untreated control in terms of total chromosomal damage and abnormal metaphases, pre- and simultaneous treatment with this vitamin showed no significant differences. In the post-treatment, average and above average concentrations of vitamin B6 alone showed a clastogenic effect. In the simultaneous protocol, this vitamin (15, 90 and 120 microg/mL) was effective in inhibiting chromosomal aberrations induced by doxorubicin (p<0.05), with a reduction of 33.1% with the highest concentration tested. However, in the post-treatment, the associations of vitamin B6 and doxorubicin exerted a more evident clastogenic effect than that observed in the cultures exposed only to the antitumor drug. In the present investigation, the inability of vitamin B6 to decrease chromosomal damage induced by doxorubicin in the pre- and post-treatments could be justified by the instability of this vitamin as a free radical scavenger. In conclusion, the results from this study confirmed that vitamin B6 is protective against chromosomal damage induced by doxorubicin in cultured human lymphocytes, but that the effects depend on concentration and form of treatment.
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Affiliation(s)
- Paula Lumy Takeuchi
- Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto (SP), Brazil.
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Venkatesh P, Shantala B, Jagetia GC, Rao KK, Baliga MS. Modulation of doxorubicin-induced genotoxicity by Aegle marmelos in mouse bone marrow: a micronucleus study. Integr Cancer Ther 2007; 6:42-53. [PMID: 17351026 DOI: 10.1177/1534735406298302] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The effect of various concentrations of Aegle marmelos (AME) on the doxorubicin (DOX)-induced genotoxic effects in mice bone marrow was studied. Treatment of mice with different concentrations of DOX resulted in a dose-dependent elevation in the frequency of micronucleated polychromatic (MPCE) as well as normochromatic (MNCE) erythrocytes in mouse bone marrow. The frequencies of MPCE and MNCE increased with scoring time, and the greatest elevation for MPCE was observed at 48 hours post-DOX treatment, whereas a maximum increase in MNCE was observed at 72 hours post-DOX treatment. This increase in MPCE and MNCE was accompanied by a decline in the polychromatic erythrocytes-normochromatic erythrocytes (PCE/NCE) ratio, which showed a DOX-dose-dependent decline. Treatment of mice with 200, 250, 300, 350, and 400 mg/kg body weight of AME, orally once daily for 5 consecutive days before DOX treatment, significantly reduced the frequency of DOX-induced micronuclei accompanied by a significant elevation in the PCE/NCE ratio at all scoring times. The greatest protection against DOX-induced genotoxicity was observed at 350 mg/kg AME. The protection against DOX-induced genotoxicity by AME may be due to inhibition of free radicals and increased antioxidant status.
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Affiliation(s)
- Ponemone Venkatesh
- Department of Radiobiology, Kasturba Medical College, Manipal, India; Department of Human Nutrition, College of Applied Health Sciences, 1919 West Taylor Street, MC 517, University of Illinois at Chicago, Chicago, IL 60612. USA.
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Fragiorge EJ, Spanó MA, Antunes LMG. Modulatory effects of the antioxidant ascorbic acid on the direct genotoxicity of doxorubicin in somatic cells of Drosophila melanogaster. Genet Mol Biol 2007. [DOI: 10.1590/s1415-47572007000300025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Antunes LMG, de Barros E Lima Bueno R, da Luz Dias F, de Lourdes Pires Bianchi M. Acetylsalicylic acid exhibits anticlastogenic effects on cultured human lymphocytes exposed to doxorubicin. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2007; 626:155-61. [PMID: 17097912 DOI: 10.1016/j.mrgentox.2006.09.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2006] [Revised: 09/20/2006] [Accepted: 09/29/2006] [Indexed: 11/16/2022]
Abstract
Acetylsalicylic acid (ASA) is a non-steroidal anti-inflammatory drug (NSAID) with many pharmacological properties, such as anti-inflammatory, antipyretic and analgesic. Many studies have suggested the possible efficiency of ASA and other NSAIDs in preventing cancer. ASA could also have antimutagenic and antioxidant properties. The aim of this study was to investigate the possible clastogenic and anticlastogenic effects of different concentrations of ASA on doxorubicin-induced chromosomal aberrations in human lymphocytes. Human blood samples were obtained from six healthy, non-smoking volunteers; and the chromosomal aberration assay was carried out using conventional techniques. The parameters analyzed were mitotic index, total number of chromosomal aberrations and percentage of aberrant metaphases. The concentrations of ASA (25, 50 or 100 microg/mL) tested in combination with DXR (0.2 microg/mL) were established on the basis of the results of the mitotic index. The treatment with ASA alone was neither cytotoxic nor clastogenic (p>0.01). In lymphocyte cultures treated with different combinations of ASA and DXR, a significant decrease in the total number of chromosome aberrations was observed compared with DXR alone (p<0.01). This protective effect of ASA on DXR-induced chromosomal damage was obtained for all combinations, and it was most evident when ASA was at 25.0 microg/mL. In our experiments, ASA may have acted as an antioxidant and inhibited the chromosomal damage induced by the free radicals generated by DXR. The identification of compounds that could counteract the free radicals produced by doxorubicin could be of possible benefits against the potential harmful effects of anthracyclines. The results of this study show that there is a relevant need for more investigations in order to elucidate the mechanisms underlying the anticlastogenic effect of ASA.
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Affiliation(s)
- Lusânia Maria Greggi Antunes
- Depto de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil.
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