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Allen-Taylor D, Boro G, Cabato P, Mai C, Nguyen K, Rijal G. Staphylococcus epidermidis biofilm in inflammatory breast cancer and its treatment strategies. Biofilm 2024; 8:100220. [PMID: 39318870 PMCID: PMC11420492 DOI: 10.1016/j.bioflm.2024.100220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Revised: 09/11/2024] [Accepted: 09/12/2024] [Indexed: 09/26/2024] Open
Abstract
Bacterial biofilms represent a significant challenge in both clinical and industrial settings because of their robust nature and resistance to antimicrobials. Biofilms are formed by microorganisms that produce an exopolysaccharide matrix, protecting function and supporting for nutrients. Among the various bacterial species capable of forming biofilms, Staphylococcus epidermidis, a commensal organism found on human skin and mucous membranes, has emerged as a prominent opportunistic pathogen, when introduced into the body via medical devices, such as catheters, prosthetic joints, and heart valves. The formation of biofilms by S. epidermidis on these surfaces facilitates colonization and provides protection against host immune responses and antibiotic therapies, leading to persistent and difficult-to-treat infections. The possible involvement of biofilms for breast oncogenesis has recently created the curiosity. This paper therefore delves into S. epidermidis biofilm involvement in breast cancer. S. epidermidis biofilms can create a sustained inflammatory environment through their metabolites and can break DNA in breast tissue, promoting cellular proliferation, angiogenesis, and genetic instability. Preventing biofilm formation primarily involves preventing bacterial proliferation using prophylactic measures and sterilization of medical devices and equipment. In cancer treatment, common modalities include chemotherapy, surgery, immunotherapy, alkylating agents, and various anticancer drugs. Understanding the relationship between anticancer drugs and bacterial biofilms is crucial, especially for those undergoing cancer treatment who may be at increased risk of bacterial infections, for improving patient outcomes. By elucidating these interactions, strategies to prevent or disrupt biofilm formation, thereby reducing the incidence of infections associated with medical devices and implants, can be identified.
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Affiliation(s)
- D. Allen-Taylor
- Department of Medical Laboratory Sciences, Public Health, and Nutrition Science, College of Health Sciences, Tarleton State University, a Member of Texas A & M University System, Fort Worth, Texas, 76036, USA
| | - G. Boro
- Department of Medical Laboratory Sciences, Public Health, and Nutrition Science, College of Health Sciences, Tarleton State University, a Member of Texas A & M University System, Fort Worth, Texas, 76036, USA
| | - P.M. Cabato
- Department of Medical Laboratory Sciences, Public Health, and Nutrition Science, College of Health Sciences, Tarleton State University, a Member of Texas A & M University System, Fort Worth, Texas, 76036, USA
| | - C. Mai
- Department of Medical Laboratory Sciences, Public Health, and Nutrition Science, College of Health Sciences, Tarleton State University, a Member of Texas A & M University System, Fort Worth, Texas, 76036, USA
| | - K. Nguyen
- Department of Medical Laboratory Sciences, Public Health, and Nutrition Science, College of Health Sciences, Tarleton State University, a Member of Texas A & M University System, Fort Worth, Texas, 76036, USA
| | - G. Rijal
- Department of Medical Laboratory Sciences, Public Health, and Nutrition Science, College of Health Sciences, Tarleton State University, a Member of Texas A & M University System, Fort Worth, Texas, 76036, USA
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Pourali G, Kazemi D, Chadeganipour AS, Arastonejad M, Kashani SN, Pourali R, Maftooh M, Akbarzade H, Fiuji H, Hassanian SM, Ghayour-Mobarhan M, Ferns GA, Khazaei M, Avan A. Microbiome as a biomarker and therapeutic target in pancreatic cancer. BMC Microbiol 2024; 24:16. [PMID: 38183010 PMCID: PMC10768369 DOI: 10.1186/s12866-023-03166-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024] Open
Abstract
Studying the effects of the microbiome on the development of different types of cancer has recently received increasing research attention. In this context, the microbial content of organs of the gastrointestinal tract has been proposed to play a potential role in the development of pancreatic cancer (PC). Proposed mechanisms for the pathogenesis of PC include persistent inflammation caused by microbiota leading to an impairment of antitumor immune surveillance and altered cellular processes in the tumor microenvironment. The limited available diagnostic markers that can currently be used for screening suggest the importance of microbial composition as a non-invasive biomarker that can be used in clinical settings. Samples including saliva, stool, and blood can be analyzed by 16 s rRNA sequencing to determine the relative abundance of specific bacteria. Studies have shown the potentially beneficial effects of prebiotics, probiotics, antibiotics, fecal microbial transplantation, and bacteriophage therapy in altering microbial diversity, and subsequently improving treatment outcomes. In this review, we summarize the potential impact of the microbiome in the pathogenesis of PC, and the role these microorganisms might play as biomarkers in the diagnosis and determining the prognosis of patients. We also discuss novel treatment methods being used to minimize or prevent the progression of dysbiosis by modulating the microbial composition. Emerging evidence is supportive of applying these findings to improve current therapeutic strategies employed in the treatment of PC.
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Affiliation(s)
- Ghazaleh Pourali
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Danial Kazemi
- Student Research Committee, Isfahan University of Medical Sciences, Hezar Jerib Street, Isfahan, Iran
| | | | - Mahshid Arastonejad
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | | | - Roozbeh Pourali
- Student Research Committee, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mina Maftooh
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Akbarzade
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Fiuji
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mahdi Hassanian
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Ghayour-Mobarhan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Department of Medical Education, Falmer, Brighton, Sussex, BN1 9PH, UK
| | - Majid Khazaei
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- College of Medicine, University of Warith Al-Anbiyaa, Karbala, Iraq.
- School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George St, Brisbane City, QLD, 4000, Australia.
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3
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Pietropoli E, Pauletto M, Tolosi R, Iori S, Lopparelli RM, Montanucci L, Giantin M, Dacasto M, De Liguoro M. An In Vivo Whole-Transcriptomic Approach to Assess Developmental and Reproductive Impairments Caused by Flumequine in Daphnia magna. Int J Mol Sci 2023; 24:9396. [PMID: 37298348 PMCID: PMC10253896 DOI: 10.3390/ijms24119396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/17/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Among veterinary antibiotics, flumequine (FLU) is still widely used in aquaculture due to its efficacy and cost-effectiveness. Although it was synthesized more than 50 years ago, a complete toxicological framework of possible side effects on non-target species is still far from being achieved. The aim of this research was to investigate the FLU molecular mechanisms in Daphnia magna, a planktonic crustacean recognized as a model species for ecotoxicological studies. Two different FLU concentrations (2.0 mg L-1 and 0.2 mg L-1) were assayed in general accordance with OECD Guideline 211, with some proper adaptations. Exposure to FLU (2.0 mg L-1) caused alteration of phenotypic traits, with a significant reduction in survival rate, body growth, and reproduction. The lower concentration (0.2 mg L-1) did not affect phenotypic traits but modulated gene expression, an effect which was even more evident under the higher exposure level. Indeed, in daphnids exposed to 2.0 mg L-1 FLU, several genes related with growth, development, structural components, and antioxidant response were significantly modulated. To the best of our knowledge, this is the first work showing the impact of FLU on the transcriptome of D. magna.
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Affiliation(s)
- Edoardo Pietropoli
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
| | - Marianna Pauletto
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
| | - Roberta Tolosi
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
| | - Silvia Iori
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
| | - Rosa Maria Lopparelli
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
| | - Ludovica Montanucci
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA;
| | - Mery Giantin
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
| | - Mauro Dacasto
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
| | - Marco De Liguoro
- Department Comparative Biomedicine and Food Science, University of Padova, 35020 Padova, Italy; (E.P.); (R.T.); (S.I.); (R.M.L.); (M.G.); (M.D.); (M.D.L.)
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Kitamura RSA, Vicentini M, Bitencourt V, Vicari T, Motta W, Brito JCM, Cestari MM, Prodocimo MM, de Assis HCS, Gomes MP. Salvinia molesta phytoremediation capacity as a nature-based solution to prevent harmful effects and accumulation of ciprofloxacin in Neotropical catfish. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:41848-41863. [PMID: 36639588 DOI: 10.1007/s11356-023-25226-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023]
Abstract
Phytoremediation has been a potential solution for the removal of pharmaceuticals from water. Here, we evaluated the toxicological safety of ciprofloxacin-contaminated water treated by 96 h with Salvinia molesta. The Neotropical catfish Rhamdia quelen was used as a model, and the potential of the phytoremediation technique for mitigating the drug accumulation in the fishes was also studied. Fish exposed to Cipro (1 and 10 µg·L-1) in untreated water showed toxic responses (alteration of hematological, genotoxicity, biochemical, and histopathological biomarkers) and accumulated Cipro in their muscles at concentrations high for human consumption (target hazardous quotient > 1). Fish exposed to water treated with S. molesta showed no toxic effect and no accumulation of Cipro in their tissues. This must be related to the fact that S. molesta removed up to 97% of Cipro from the water. The decrease in Cipro concentrations after water treatment with S. molesta not only prevented the toxic effects of Cipro on R. quelen fish but also prevented the antimicrobial accumulation in fish flesh, favouring safe consumption by humans. For the very first time, we showed the potential of phytoremediation as an efficiently nature-based solution to prevent environmental toxicological effects of antimicrobials to nontarget organisms such as fish and humans. The use of S. molesta for Cipro-removal from water is a green technology to be considered in the combat against antimicrobial resistance.
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Affiliation(s)
- Rafael Shinji Akiyama Kitamura
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil.
- Department of Pharmacology, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil.
- Department of Botany, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil.
| | - Maiara Vicentini
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
- Department of Pharmacology, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Vitória Bitencourt
- Department of Pharmacology, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Taynah Vicari
- Department of Genetics, Federal University of Paraná, PO Box 19071, Curitiba, PR, 81530-980, Brazil
| | - Welton Motta
- Department of Genetics, Federal University of Paraná, PO Box 19071, Curitiba, PR, 81530-980, Brazil
| | | | - Marta Margarete Cestari
- Department of Genetics, Federal University of Paraná, PO Box 19071, Curitiba, PR, 81530-980, Brazil
| | - Maritana Mela Prodocimo
- Department of Cell Biology, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81537-980, Brazil
| | - Helena Cristina Silva de Assis
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
- Department of Pharmacology, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Marcelo Pedrosa Gomes
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
- Department of Botany, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
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Jałbrzykowska K, Chrzanowska A, Roszkowski P, Struga M. The New Face of a Well-Known Antibiotic: A Review of the Anticancer Activity of Enoxacin and Its Derivatives. Cancers (Basel) 2022; 14:cancers14133056. [PMID: 35804828 PMCID: PMC9264829 DOI: 10.3390/cancers14133056] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/15/2022] [Accepted: 06/19/2022] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Enoxacin is a second-generation quinolone with promising anticancer activity. In contrast to other members of the quinolone group, it exhibits an extraordinary cytotoxic mechanism of action. Enoxacin enhances RNA interference and promotes microRNA processing, as well as the production of free radicals. Interestingly, apart from its proapoptotic, cell cycle arresting and cytostatic effects, enoxacin manifests a limitation of cancer invasiveness. The underlying mechanisms are the competitive inhibition of vacuolar H+-ATPase subunits and c-Jun N-terminal kinase signaling pathway suppression. The newly synthesized enoxacin derivatives have shown a magnified cytotoxic effect with an emphasis on prooxidative, proapoptotic and microRNA interference actions. The mentioned mechanisms seem to contribute to a safer, more selective and more effective anticancer therapy. Abstract Enoxacin as a second-generation synthetic quinolone is known for its antibacterial action; however, in recent years there have been studies focusing on its anticancer potential. Interestingly, it turns out that compared to other fluoroquinolones, enoxacin exhibits uncommon cytotoxic properties. Besides its influence on apoptosis, the cell cycle and cell growth, it exhibits a regulatory action on microRNA biogenesis. It was revealed that the molecular targets of the enoxacin-mediated inhibition of osteoclastogenesis are vacuolar H+-ATPase subunits and the c-Jun N-terminal kinase signaling pathway, causing a decrease in cell invasiveness. Interestingly, the prooxidative nature of the subjected fluoroquinolone enhanced the cytotoxic effect. Crucial for the anticancer activity were the carboxyl group at the third carbon atom, fluorine at the seventh carbon atom and nitrogen at the eighth position of naphyridine. Modifications of the parent drug improved the induction of oxidative stress, cell cycle arrest and the dysregulation of microRNA. The inhibition of V-ATPase–microfilament binding was also observed. Enoxacin strongly affected various cancer but not normal cells, excluding keratinocytes, which suffered from phototoxicity. It seems to be an underestimated anticancer drug with pleiotropic action. Furthermore, its usage as a safe antibiotic with well-known pharmacokinetics and selectivity will enhance the development of anticancer treatment strategies. This review covers articles published within the years 2000–2021, with a strong focus on the recent years (2016–2021). However, some canonical papers published in twentieth century are also mentioned.
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Affiliation(s)
- Karolina Jałbrzykowska
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, 02-097 Warszawa, Poland;
| | - Alicja Chrzanowska
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, 02-097 Warszawa, Poland;
- Correspondence: (A.C.); (M.S.); Tel.: +48-22-5720693 (A.C. & M.S.)
| | - Piotr Roszkowski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland;
| | - Marta Struga
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, 02-097 Warszawa, Poland;
- Correspondence: (A.C.); (M.S.); Tel.: +48-22-5720693 (A.C. & M.S.)
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Kitamura RSA, Vicentini M, Perussolo MC, Lirola JR, Cirilo Dos Santos CF, Moreira Brito JC, Cestari MM, Prodocimo MM, Gomes MP, Silva de Assis HC. Sublethal biochemical, histopathological and genotoxicological effects of short-term exposure to ciprofloxacin in catfish Rhamdia quelen. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 300:118935. [PMID: 35131333 DOI: 10.1016/j.envpol.2022.118935] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 01/26/2022] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
Ciprofloxacin (Cipro) is commonly detected in water worldwide, however, the ecotoxicological effects to aquatic biota is still not fully understood. In this study, using multiple biomarkers, it was investigated sublethal effects of short-term exposure to Cipro concentrations (1, 10 and 100 μg.L-1) in the Neotropical catfish Rhamdia quelen compared to non-exposure treatment (Control). After 96 h of exposure, the fishes were anesthetized for blood collection to hematological and genotoxicity biomarkers analysis. After euthanasia, the brain and muscle were sampled for biochemical biomarkers analyses. Gills, liver and posterior kidney for genotoxicity, biochemical and histopathological biomarkers analysis and anterior intestine for histopathological biomarkers analysis. Genotoxicity was observed in all tissues, regardless of the Cipro concentrations. Hematological alterations, such as reduction of the number of erythrocytes and leucocytes, as well as in hematocrit concentration and histopathological damages, such as reduction of microridges in gill epithelium and necrosis in liver and posterior kidney, occurred mainly at 100 μg.L-1. In addition, at 100 μg.L-1, Cipro increased antioxidant system activity (Catalase in liver and posterior kidney). These results demonstrated that under short-term exposure, Cipro causes toxic effects in R. quelen that demands attention and surveillance of environmental aquatic concentrations of this antibiotic.
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Affiliation(s)
- Rafael Shinji Akiyama Kitamura
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, 81530-980, Curitiba, PR, Brazil; Department of Pharmacology, Federal University of Paraná, PO Box 19031, 81530-980, Curitiba, PR, Brazil; Department of Cell Biology, Federal University of Paraná, PO Box 19031, 81537-980, Curitiba, PR, Brazil
| | - Maiara Vicentini
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, 81530-980, Curitiba, PR, Brazil; Department of Pharmacology, Federal University of Paraná, PO Box 19031, 81530-980, Curitiba, PR, Brazil
| | - Maiara Carolina Perussolo
- Department of Pharmacology, Federal University of Paraná, PO Box 19031, 81530-980, Curitiba, PR, Brazil; Instituto de Pesquisas Pelé Pequeno Príncipe, Curitiba, PR, Brazil
| | - Juliana Roratto Lirola
- Department of Genetics, Federal University of Paraná, PO Box 19071, 81530-980, Curitiba, PR, Brazil
| | | | | | - Marta Margarete Cestari
- Department of Genetics, Federal University of Paraná, PO Box 19071, 81530-980, Curitiba, PR, Brazil
| | - Maritana Mela Prodocimo
- Department of Cell Biology, Federal University of Paraná, PO Box 19031, 81537-980, Curitiba, PR, Brazil
| | - Marcelo Pedrosa Gomes
- Department of Botany, Federal University of Paraná, PO Box 19031, 81530-980, Curitiba, PR, Brazil
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Maternal antibiotics exposure during pregnancy and the risk of acute lymphoblastic leukemia in childhood: a systematic review and meta-analysis. Eur J Pediatr 2022; 181:471-478. [PMID: 34535829 DOI: 10.1007/s00431-021-04247-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/17/2021] [Accepted: 08/27/2021] [Indexed: 10/20/2022]
Abstract
Many epidemiological studies have assessed the association between maternal antibiotic exposure during pregnancy and childhood acute lymphoblastic leukemia (ALL), while reaching inconsistent conclusions. In order to clarify the association, the publications in English that provided information about maternal antibiotic exposure during pregnancy and ALL risk in offspring in the PubMed, Embase, and Web of Science databases were systematically reviewed and we performed a meta-analysis using the random-effect models. Results of pooled analysis showed that maternal antibiotic intake during pregnancy is not associated with childhood ALL risk (pooled odds ratio 1.07, 95% confidence interval 0.98-1.18) without significant heterogeneity (I2 = 13.7%, P = 0.310). This finding was consistent across subgroups stratified by type of study design, measurement method, sample size, study quality, and pregnancy stage. Our findings suggest that maternal antibiotic consumption during pregnancy was not associated with ALL risk in progeny. Further investigations are needed to confirm the results and assess any risk differences of ALL by types of antibiotics.Conclusions: Our findings suggest that maternal antibiotics consumption during pregnancy was not associated with ALL risk in progeny. Further investigations are needed to confirm the results and assess any risk differences of ALL by types of antibiotics. What is Known: • It is not unusual for pregnant woman to receive antibiotics for local or systematic use during pregnancy. • The conclusions regarding the associations between maternal antibiotics use during pregnancy and childhood ALL risk were inconsistent. What is New: • Maternal antibiotics consumption during pregnancy was not associated with the increased ALL risk in offspring. • Further laboratory evidences are needed to confirm the results.
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Baptista MS, Cadet J, Greer A, Thomas AH. Photosensitization Reactions of Biomolecules: Definition, Targets and Mechanisms. Photochem Photobiol 2021; 97:1456-1483. [PMID: 34133762 DOI: 10.1111/php.13470] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/13/2021] [Indexed: 02/07/2023]
Abstract
Photosensitization reactions have been demonstrated to be largely responsible for the deleterious biological effects of UV and visible radiation, as well as for the curative actions of photomedicine. A large number of endogenous and exogenous photosensitizers, biological targets and mechanisms have been reported in the past few decades. Evolving from the original definitions of the type I and type II photosensitized oxidations, we now provide physicochemical frameworks, classifications and key examples of these mechanisms in order to organize, interpret and understand the vast information available in the literature and the new reports, which are in vigorous growth. This review surveys in an extended manner all identified photosensitization mechanisms of the major biomolecule groups such as nucleic acids, proteins, lipids bridging the gap with the subsequent biological processes. Also described are the effects of photosensitization in cells in which UVA and UVB irradiation triggers enzyme activation with the subsequent delayed generation of superoxide anion radical and nitric oxide. Definitions of photosensitized reactions are identified in biomolecules with key insights into cells and tissues.
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Affiliation(s)
| | - Jean Cadet
- Département de Médecine Nucléaire et de Radiobiologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Alexander Greer
- Department of Chemistry, Brooklyn College, Brooklyn, NY, USA.,Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY, USA
| | - Andrés H Thomas
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), CCT La Plata-CONICET, La Plata, Argentina
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9
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Siqueira FDS, Alves CFDS, Machado AK, Siqueira JD, Santos TD, Mizdal CR, Moreira KS, Teixeira Carvalho D, Bonez PC, Urquhart CG, Santos RCV, Sagrillo MR, Marques LDL, Back DF, de Campos MMA. Molecular docking, quorum quenching effect, antibiofilm activity and safety profile of silver-complexed sulfonamide on Pseudomonas aeruginosa. BIOFOULING 2021; 37:555-571. [PMID: 34225503 DOI: 10.1080/08927014.2021.1939019] [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: 11/09/2020] [Revised: 05/26/2021] [Accepted: 05/31/2021] [Indexed: 06/13/2023]
Abstract
Microbial infections caused by sessile microorganisms are known to be a more challenging issue than infections caused by the same microorganisms in the planktonic state. Pseudomonas aeruginosa is an opportunistic pathogen and biofilm-forming agent. This species presents intense cellular communication mediated by signaling molecules. This process is known as quorum sensing (QS) and induces the transcription of specific genes that favors cell density growth and three-dimensional bacterial grouping. In this context, the discovery of compounds capable of inhibiting the action of the QS signaling molecules seems to be a promising strategy against biofilms. This work aimed to evaluate the anti-biofilm action and the in vitro safety profile of a sulfamethoxazole-Ag complex. The results obtained indicate potential anti-biofilm activity through QS inhibition. In silico tests showed that the compound acts on the las and pqs systems, which are the main regulators of biofilm formation in P. aeruginosa. Additionally, the molecule proved to be safe for human peripheral blood mononuclear cells.
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Affiliation(s)
| | | | - Alencar Kolinski Machado
- Graduate Program in Nanoscience, Franciscan University, Santa Maria, Brazil, Santa Maria, Brazil
| | | | - Thiago Dos Santos
- Research Center on Natural and Synthetic Products, University of Sao Paulo, Ribeirão Preto, Brazil
| | - Caren Rigon Mizdal
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Diogo Teixeira Carvalho
- Pharmaceutical Chemistry Research Laboratory, Federal University of Alfenas, Alfenas, Brazil
| | - Pauline Codernonsi Bonez
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | | | | | - Michele Rorato Sagrillo
- Graduate Program in Nanoscience, Franciscan University, Santa Maria, Brazil, Santa Maria, Brazil
| | - Lenice de Lourenço Marques
- Farroupilha Federal Institute, São Vicente do Sul Campus, Zip code: 97420-000, São Vicente do Sul, Brazil
| | - Davi Fernando Back
- Graduate Program in Chemistry, Federal University of Santa Maria, Santa Maria, Brazil
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Gao Y, Shang Q, Li W, Guo W, Stojadinovic A, Mannion C, Man YG, Chen T. Antibiotics for cancer treatment: A double-edged sword. J Cancer 2020; 11:5135-5149. [PMID: 32742461 PMCID: PMC7378927 DOI: 10.7150/jca.47470] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/14/2020] [Indexed: 12/13/2022] Open
Abstract
Various antibiotics have been used in the treatment of cancers, via their anti-proliferative, pro-apoptotic and anti-epithelial-mesenchymal-transition (EMT) capabilities. However, increasingly studies have indicated that antibiotics may also induce cancer generation by disrupting intestinal microbiota, which further promotes chronic inflammation, alters normal tissue metabolism, leads to genotoxicity and weakens the immune response to bacterial malnutrition, thereby adversely impacting cancer treatment. Despite the advent of high-throughput sequencing technology in recent years, the potential adverse effects of antibiotics on cancer treatments via causing microbial imbalance has been largely ignored. In this review, we discuss the double-edged sword of antibiotics in the field of cancer treatments, explore their potential mechanisms and provide solutions to reduce the potential negative effects of antibiotics.
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Affiliation(s)
- Yuan Gao
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, 1299 Xuefu Road, Honggu District, Nanchang, 330031 People's Republic of China
- Queen Mary School, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Qingyao Shang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, 1299 Xuefu Road, Honggu District, Nanchang, 330031 People's Republic of China
- Queen Mary School, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Wenyu Li
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, 1299 Xuefu Road, Honggu District, Nanchang, 330031 People's Republic of China
- Queen Mary School, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Wenxuan Guo
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, 1299 Xuefu Road, Honggu District, Nanchang, 330031 People's Republic of China
| | - Alexander Stojadinovic
- Department of Pathology, Hackensack University Medical Center, 30 Prospec Avenue, Hackensack, NJ 07601, USA
| | - Ciaran Mannion
- Department of Pathology, Hackensack University Medical Center, 30 Prospec Avenue, Hackensack, NJ 07601, USA
- Department of Pathology, Hackensack Meridian School of Medicine at Seton Hall University, 340 Kingsland Street, Nutley, NJ 07110, USA
| | - Yan-gao Man
- Department of Pathology, Hackensack University Medical Center, 30 Prospec Avenue, Hackensack, NJ 07601, USA
| | - Tingtao Chen
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, 1299 Xuefu Road, Honggu District, Nanchang, 330031 People's Republic of China
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Bao C, Wang K, Ding Y, Kong J. Association Between Anti-bacterial Drug Use and Digestive System Neoplasms: A Systematic Review and Meta-analysis. Front Oncol 2019; 9:1298. [PMID: 31828038 PMCID: PMC6890852 DOI: 10.3389/fonc.2019.01298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/08/2019] [Indexed: 12/14/2022] Open
Abstract
Background: Anti-bacterial drugs are thought to be associated with several malignancies. Objective: We conducted a systematic review and meta-analysis to assess the association between antibacterial drug exposure and the risk of digestive system neoplasms. Methods: Relevant publications reporting a relationship between antibiotic use and the risk of cancer were identified in PubMed, EMBASE, and Cochrane Central Register through June 2018. The random-effects model was selected to pool the risk ratios (RRs) and determine 95% confidence intervals (95% CIs). We performed subgroup analyses by tumor organ site, individual antibacterial drug class, and drug dose accumulation. Results: A total of 17 eligible studies (four randomized trials and 13 observational studies) involving 77,284 cancer patients were included in our analyses. Anti-bacterial drug exposure slightly increased the risk of overall digestive system cancer (RR, 1.12; 95% CI, 1.10-1.14), stomach and small intestine (RR, 1.12; 95% CI, 1.07-1.17), anorectocolonic (RR, 1.08; 95% CI, 1.05-1.12), and hepatobiliary and pancreatic cancers (RR, 1.18; 95% CI, 1.14-1.22). For different anti-bacterial drugs classes, nitroimidazoles (RR, 1.17; 95% CI, 1.09-1.26) and quinolones (RR, 1.18; 95% CI, 1.11-1.26) showed a modest association with the risk of cancers incidence. The risks of digestive system cancers increased with the rise of drug dose accumulation: low (RR, 1.08; 95% CI, 1.05-1.11), intermediate (RR, 1.15; 95% CI, 1.12-1.18), and high (RR, 1.22; 95% CI, 1.18-1.26). Conclusions: Anti-bacterial drug exposure was associated with the risks of digestive system cancer occurrence in our analysis.
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Affiliation(s)
| | - Ke Wang
- Department of Respiratory Disease, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | | | - Jinliang Kong
- Department of Respiratory Disease, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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12
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Whitwell J, Smith R, Chirom T, Watters G, Hargreaves V, Lloyd M, Phillips S, Clements J. Inclusion of an extended treatment with recovery improves the results for the human peripheral blood lymphocyte micronucleus assay. Mutagenesis 2019; 34:217-237. [PMID: 31209484 DOI: 10.1093/mutage/gez011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/22/2019] [Accepted: 05/03/2019] [Indexed: 12/19/2022] Open
Abstract
The in vitro micronucleus (IVMN) test was endorsed for regulatory genotoxicity testing with adoption of the Organisation for Economic Co-operation and Development (OECD) test guideline (TG) 487 in 2010. This included two equally acceptable options for extended treatment in the absence of metabolic activation: a treatment for 1.5-2.0 cell cycles with harvest at the end of treatment (Option A) or treatment for 1.5-2.0 cell cycles followed by recovery for 1.5-2.0 cell cycles prior to harvest (Option B). Although no preferences were discussed, TG 487 cautions that Option B may not be appropriate for stimulated lymphocytes where exponential growth may be declining at 96 h after phytohaemagglutinin (PHA) stimulation. Following revision of TG 487 in 2014 and 2016, emphasis has been placed on using Option A. Given the purpose of the IVMN assay is to determine both clastogenic and aneugenic potential, the authors believe the assay is compromised if an extended treatment with recovery is not included for sensitive detection of certain classes of chemical. In this study, average generation time (via bromodeoxyuridine incorporation) of human peripheral blood lymphocytes (HPBL) was measured up to 144 h after PHA stimulation. In addition, the HPBL micronucleus (MN) assay was performed using Option A and B treatment schedules. Cytotoxicity (replication index) and MN induction were determined following treatment with 14 chemicals. The data demonstrate that lymphocytes actively divide beyond 96 h after PHA stimulation. Furthermore, MN induction was only observed with some aneugenic chemicals and nucleoside analogues in HPBLs following extended treatment with a recovery period. For the majority of chemicals tested the magnitude of MN induction was generally greater and MN induction was observed across a wider concentration range following the Option B treatment schedule. In addition, steep concentration-related toxicity following treatment without recovery is more common, making selection of suitable concentrations (within regulatory toxicity limits) for MN analysis challenging.
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Affiliation(s)
- James Whitwell
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
| | - Robert Smith
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
| | - Teresa Chirom
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
| | - Gary Watters
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
| | - Victoria Hargreaves
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
| | - Mel Lloyd
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
| | - Sarah Phillips
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
| | - Julie Clements
- Covance Laboratories Ltd, Genetic Toxicology, Harrogate, North Yorkshire, UK
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Health Risk Assessment of Banned Veterinary Drugs and Quinolone Residues in Shrimp through Liquid Chromatography–Tandem Mass Spectrometry. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9122463] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The presence of antibiotic residues in seafood and their effect on public health constitute a matter of concern for consumers worldwide. Antibiotic residues can have adverse effects on both humans and animals, especially residues of banned veterinary drugs. In this study, we applied a validated method to analyze veterinary drug residues in shrimp, including the levels of banned chloramphenicol, malachite green, leucomalachite green, and four nitrofuran metabolites as well as thiamphenicol, florfenicol, and five quinolones, which have no recommended maximum residual levels in shrimp tissues in Taiwan. We collected 53 samples of whiteleg, grass, or giant river shrimp from Taiwanese aquafarms and production areas from July 2016 to December 2017. We found 0.31 ng/g of a chloramphenicol in one grass shrimp, 5.62 ng/g of enrofloxacin in one whiteleg shrimp, 1.52 ng/g of flumequine in one whiteleg shrimp, and 1.01 ng/g of flumequine in one giant river shrimp, indicating that 7.55% of the samples contained veterinary drug residues. We evaluated the health risk by deriving the estimated daily intake (EDI). The quinolone residue EDI was below 1.0% of the acceptable daily intake recommended by the United Nations Food and Agriculture Organization and World Health Organization. The risk was thus discovered to be negligible, indicating no immediate health risk associated with shrimp consumption. The present findings can serve as a reference regarding food safety and in monitoring of the veterinary drug residues present in aquatic organisms. Continual monitoring of residues in shrimp is critical for further assessment of possible effects on human health.
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Takeiri A, Matsuzaki K, Motoyama S, Yano M, Harada A, Katoh C, Tanaka K, Mishima M. High-content imaging analyses of γH2AX-foci and micronuclei in TK6 cells elucidated genotoxicity of chemicals and their clastogenic/aneugenic mode of action. Genes Environ 2019; 41:4. [PMID: 30766621 PMCID: PMC6362597 DOI: 10.1186/s41021-019-0117-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 01/07/2019] [Indexed: 12/12/2022] Open
Abstract
Background The in vitro micronucleus (MN) test is an important component of a genotoxicity test battery that evaluates chemicals. Although the standard method of manually scoring micronucleated (MNed) cells by microscope is a reliable and standard method, it is laborious and time-consuming. A high-throughput assay system for detecting MN cells automatically has long been desired in the fields of pharmaceutical development or environmental risk monitoring. Although the MN test per se cannot clarify whether the mode of MN induction is aneugenic or clastogenic, this clarification may well be made possible by combining the MN test with an evaluation of γH2AX, a sensitive marker of DNA double strand breaks (DSB). In the present study, we aimed to establish a high-content (HC) imaging assay that automatically detects micronuclei (MNi) and simultaneously measures γH2AX foci in human lymphoblastoid TK6 cells. Results TK6 cells were fixed on the bottom of each well in 96-well plates hypotonically, which spreads the cells thinly to detach MNi from the primary nuclei. Then, the number of MNi and immunocytochemically-stained γH2AX foci were measured using an imaging analyzer. The system correctly judged 4 non-genotoxins and 13 genotoxins, which included 9 clastogens and 4 aneugens representing various genotoxic mechanisms, such as DNA alkylation, cross-linking, topoisomerase inhibition, and microtubule disruption. Furthermore, all the clastogens induced both γH2AX foci and MNi, while the aneugens induced only MNi, not γH2AX foci; therefore, the HC imaging assay clearly discriminated the aneugens from the clastogens. Additionally, the test system could feasibly analyze cell cycle, to add information about a chemical’s mode of action. Conclusions A HC imaging assay to detect γH2AX foci and MNi in TK6 cells was established, and the assay provided information on the aneugenic/clastogenic mode of action. Electronic supplementary material The online version of this article (10.1186/s41021-019-0117-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Akira Takeiri
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
| | - Kaori Matsuzaki
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
| | - Shigeki Motoyama
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
| | - Mariko Yano
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
| | - Asako Harada
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
| | - Chiaki Katoh
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
| | - Kenji Tanaka
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
| | - Masayuki Mishima
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd., 1-135 Komakado, Gotemba, Shizuoka, 412-8513 Japan
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Zgadzaj A, Kornacka J, Jastrzębska A, Parzonko A, Sommer S, Nałęcz-Jawecki G. Development of photoprotective, antiphototoxic, and antiphotogenotoxic formulations of ocular drugs with fluoroquinolones. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 178:201-210. [DOI: 10.1016/j.jphotobiol.2017.11.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 11/16/2022]
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16
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Valianatos G, Valcikova B, Growkova K, Verlande A, Mlcochova J, Radova L, Stetkova M, Vyhnakova M, Slaby O, Uldrijan S. A small molecule drug promoting miRNA processing induces alternative splicing of MdmX transcript and rescues p53 activity in human cancer cells overexpressing MdmX protein. PLoS One 2017; 12:e0185801. [PMID: 28973015 PMCID: PMC5626491 DOI: 10.1371/journal.pone.0185801] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 09/19/2017] [Indexed: 01/28/2023] Open
Abstract
MdmX overexpression contributes to the development of cancer by inhibiting tumor suppressor p53. A switch in the alternative splicing of MdmX transcript, leading to the inclusion of exon 6, has been identified as the primary mechanism responsible for increased MdmX protein levels in human cancers, including melanoma. However, there are no approved drugs, which could translate these new findings into clinical applications. We analyzed the anti-melanoma activity of enoxacin, a fluoroquinolone antibiotic inhibiting the growth of some human cancers in vitro and in vivo by promoting miRNA maturation. We found that enoxacin inhibited the growth and viability of human melanoma cell lines much stronger than a structurally related fluoroquinolone ofloxacin, which only weakly modulates miRNA processing. A microarray analysis identified a set of miRNAs significantly dysregulated in enoxacin-treated A375 melanoma cells. They had the potential to target multiple signaling pathways required for cancer cell growth, among them the RNA splicing. Recent studies showed that interfering with cellular splicing machinery can result in MdmX downregulation in cancer cells. We, therefore, hypothesized that enoxacin could, by modulating miRNAs targeting splicing machinery, activate p53 in melanoma cells overexpressing MdmX. We found that enoxacin and ciprofloxacin, a related fluoroquinolone capable of promoting microRNA processing, but not ofloxacin, strongly activated wild type p53-dependent transcription in A375 melanoma without causing significant DNA damage. On the molecular level, the drugs promoted MdmX exon 6 skipping, leading to a dose-dependent downregulation of MdmX. Not only in melanoma, but also in MCF7 breast carcinoma and A2780 ovarian carcinoma cells overexpressing MdmX. Together, our results suggest that some clinically approved fluoroquinolones could potentially be repurposed as activators of p53 tumor suppressor in cancers overexpressing MdmX oncoprotein and that p53 activation might contribute to the previously reported activity of enoxacin towards human cancer cells.
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Affiliation(s)
- Georgios Valianatos
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Barbora Valcikova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Katerina Growkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Amandine Verlande
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jitka Mlcochova
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Lenka Radova
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Monika Stetkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Michaela Vyhnakova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Ondrej Slaby
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Stjepan Uldrijan
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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17
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Şekeroğlu V, Aksoy M, Atlı Şekeroğlu Z. Cytogenetic alterations in human lymphocyte cultures following exposure to ofloxacin. Drug Chem Toxicol 2016; 40:140-145. [PMID: 27240646 DOI: 10.1080/01480545.2016.1188305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Ofloxacin (OFX), a second-generation of quinolones, is a broad-spectrum flouroquinolone antibiotic used in the treatment of various bacterial infections. In this article, we aimed to investigate the cytotoxic and genotoxic potentials of OFX in cultured human peripheral lymphocytes. The cytotoxicity and genotoxicity of OFX on human peripheral blood lymphocytes were examined in vitro by sister chromatid exchange (SCE), chromosomal aberrations (CAs) and micronucleus (MN) tests. Cultures were treated with 30, 60 and 120 μg/ml of OFX for 48 h. Dimethylsulfoxide (DMSO) was used as a solvent control. OFX decreased the mitotic index (MI) and nuclear division index (NDI) significantly, especially at higher concentrations (60 and 120 μg/ml) compared with solvent control. OFX significantly induced CAs at all concentrations and SCEs at higher concentrations (60 and 120 μg/ml) compared with solvent control. In conclusion, our results indicated that OFX has cytotoxic, cytostatic and genotoxic potential especially at higher concentrations on human peripheral blood lymphocyte cultures under the experimental conditions.
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Affiliation(s)
- Vedat Şekeroğlu
- a Department of Biology , Faculty of Science and Letters, Ordu University , Ordu , Turkey
| | - Muhammet Aksoy
- a Department of Biology , Faculty of Science and Letters, Ordu University , Ordu , Turkey
| | - Zülal Atlı Şekeroğlu
- a Department of Biology , Faculty of Science and Letters, Ordu University , Ordu , Turkey
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18
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Botelho RG, Christofoletti CA, Correia JE, Ansoar Y, Olinda RA, Tornisielo VL. Genotoxic responses of juvenile tilapia (Oreochromis niloticus) exposed to florfenicol and oxytetracycline. CHEMOSPHERE 2015; 132:206-212. [PMID: 25898970 DOI: 10.1016/j.chemosphere.2015.02.053] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 02/16/2015] [Accepted: 02/23/2015] [Indexed: 06/04/2023]
Abstract
Florfenicol (FLC) and oxytetracycline (OTC) are the two most commonly used antibiotics for bacterial treatment in fish farming in Brazil, and because of their intensive use, the potential harmful effects on aquatic organisms are of great concern. This study evaluated the effects of environmental concentrations of FLC and OTC on the genetic material of juvenile tilapia (Oreochromis niloticus) erythrocytes by using the comet assay and the occurrence of micronuclei (MN) and other erythrocytic nuclear abnormalities (ENAs) after exposure to 96hour. The comet assay showed that fish erythrocytes exhibited significantly higher DNA damage after exposure to environmental concentrations of FLC and OTC. Although MN was not observed, ENAs were significantly higher after exposure to FLC, indicating that ENAs are a better biomarker for FLC than MN. The results showed that environmental concentrations of FLC and OTC were genotoxic to erythrocytes of O. niloticus; however, future studies on DNA damage recovery are needed.
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Affiliation(s)
- R G Botelho
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo - CENA/USP, Avenida Centenário, 303, São Dimas, Piracicaba, São Paulo 13416-000, Brazil.
| | - C A Christofoletti
- Centro Universitário Hermínio Ometto - FHO/UNIARARAS, Av. Dr. Maximiliano Baruto, Araras, São Paulo 13607-339, Brazil.
| | - J E Correia
- Universidade Estadual Paulista Júlio de Mesquita Filho, Avenida 24 A, 1515, Rio Claro, São Paulo 13506-900, Brazil.
| | - Y Ansoar
- Universidade Estadual Paulista Júlio de Mesquita Filho, Avenida 24 A, 1515, Rio Claro, São Paulo 13506-900, Brazil.
| | - R A Olinda
- Universidade Estadual da Paraíba - UEPB, Campus I - Centro de Ciências e Tecnologia, Departamento de Estatística, Avenida das Baraúnas, 351, Bodocongó, Campina Grande, Paraíba 58101-001, Brazil.
| | - V L Tornisielo
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo - CENA/USP, Avenida Centenário, 303, São Dimas, Piracicaba, São Paulo 13416-000, Brazil.
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19
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Momen NC, Olsen J, Gissler M, Kieler H, Haglund B, Li J. Exposure to systemic antibacterial medications during pregnancy and risk of childhood cancer. Pharmacoepidemiol Drug Saf 2015; 24:821-9. [DOI: 10.1002/pds.3806] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 03/23/2015] [Accepted: 04/30/2015] [Indexed: 12/12/2022]
Affiliation(s)
- Natalie C. Momen
- Section for Epidemiology, Department of Public Health; Aarhus University; Denmark
| | - Jørn Olsen
- Section for Epidemiology, Department of Public Health; Aarhus University; Denmark
- Department of Epidemiology; University of California; Los Angeles CA USA
| | - Mika Gissler
- THL National Institute for Health and Welfare; Helsinki Finland
- Nordic School of Public Health NHV; Gothenburg Sweden
| | - Helle Kieler
- Centre for Pharmacoepidemiology; Karolinska Institutet; Stockholm Sweden
| | - Bengt Haglund
- Centre for Pharmacoepidemiology; Karolinska Institutet; Stockholm Sweden
| | - Jiong Li
- Section for Epidemiology, Department of Public Health; Aarhus University; Denmark
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20
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Vasquez MI, Garcia-Käufer M, Hapeshi E, Menz J, Kostarelos K, Fatta-Kassinos D, Kümmerer K. Chronic ecotoxic effects to Pseudomonas putida and Vibrio fischeri, and cytostatic and genotoxic effects to the hepatoma cell line (HepG2) of ofloxacin photo(cata)lytically treated solutions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 450-451:356-365. [PMID: 22743217 DOI: 10.1016/j.scitotenv.2012.05.096] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 05/30/2012] [Accepted: 05/30/2012] [Indexed: 06/01/2023]
Abstract
Ofloxacin (OFL), a broad-spectrum and widespread-used photolabile fluoroquinolone, is frequently found in treated wastewaters, aquatic and terrestrial ecosystems leading to increasing concern during the past decades regarding its effects to the environment and human health. The elimination of OFL and other xenobiotics by the application of advanced oxidation processes using photolytic (PL) and photocatalytic (PC) treatments seems promising. However, an integrated assessment scheme is needed, in which, not only the removal of the parent compound, but also the effects of the photo-transformation products (PTPs) are investigated. For this purpose, in the present study, a chronic ecotoxic assessment using representative bacteria of marine and terrestrial ecosystems and a cytostatic and genotoxic evaluation using hepatoma cell line were performed. PL and PC treatments of OFL were applied using UV radiation. The photo-transformation of OFL during the treatments was monitored by DOC measurements and UPLC-MS/MS analysis. The chronic ecotoxicity of OFL and treated samples was evaluated using Pseudomonas putida and Vibrio fischeri; whereas the cytostasis and genotoxicity were estimated by the cytokinesis-block micronucleus assay (CBMN). The main results suggest that photo-transformation of OFL took place during these treatments since the concentration of OFL decreased when the irradiation time increased, as quantified by UPLC-MS/MS analysis, and this was not coupled with an analogous DOC removal. Furthermore, nine compounds were identified as probable PTPs formed through piperazinyl dealkylation and decarboxylation. The ecotoxicity of treated solutions to the bacteria studied decreased while the cytostasis to the hepatoma cell line remained at low levels during both treatments. However, the genotoxicity to the hepatoma cell line demonstrated a different pattern in which treated samples induced a greater number of MNi for the 4-16 min of irradiation (p<0.05) during both treatments. After 64 min of irradiation, the effects decreased to non genotoxic levels (p<0.05). These findings suggest that UV radiation for various treatment processes (catalytic or not), such as disinfection, may create genotoxic by-products. Therefore, in relevant technical applications, the residence time during treatment should receive special attention.
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Affiliation(s)
- M I Vasquez
- University of Cyprus, Department of Civil and Environmental Engineering, University of Cyprus, 75 Kallipoleos Street, 1678 Nicosia, Cyprus
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Mhaidat NM, Qandil AM, Al-Balas QA, Hassan MA, Jaradat SA, Matalkah AM, Thorne RT. Methoxyphenylcipro induces antitumor activity in human cancer cells. Arch Pharm Res 2013; 36:1023-8. [DOI: 10.1007/s12272-013-0087-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Revised: 03/11/2013] [Accepted: 03/12/2013] [Indexed: 12/28/2022]
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22
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Paim CS, Nogueira DR, Mitjans M, Ramos Lopez D, de Lapuente Perez J, Steppe M, Schapoval EES, Vinardell MP. Biological safety studies of gemifloxacin mesylate and related substances. Photochem Photobiol Sci 2013; 12:805-12. [DOI: 10.1039/c3pp25369d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fellows MD, Luker T, Cooper A, O’Donovan MR. Unusual structure–genotoxicity relationship in mouse lymphoma cells observed with a series of kinase inhibitors. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2012; 746:21-8. [DOI: 10.1016/j.mrgentox.2012.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 11/11/2011] [Accepted: 01/25/2012] [Indexed: 10/28/2022]
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Thomé S, Bizarro CR, Lehmann M, Abreu BRRD, Andrade HHRD, Cunha KS, Dihl RR. Recombinagenic and mutagenic activities of fluoroquinolones in Drosophila melanogaster. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2012; 742:43-7. [DOI: 10.1016/j.mrgentox.2011.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Revised: 11/15/2011] [Accepted: 11/22/2011] [Indexed: 10/14/2022]
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Marquez B, Ameye G, Vallet CM, Tulkens PM, Poirel HA, Van Bambeke F. Characterization of Abcc4 gene amplification in stepwise-selected mouse J774 macrophages resistant to the topoisomerase II inhibitor ciprofloxacin. PLoS One 2011; 6:e28368. [PMID: 22162766 PMCID: PMC3230599 DOI: 10.1371/journal.pone.0028368] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 11/07/2011] [Indexed: 11/18/2022] Open
Abstract
Exposure of J774 mouse macrophages to stepwise increasing concentrations of ciprofloxacin, an antibiotic inhibiting bacterial topoisomerases, selects for resistant cells that overexpress the efflux transporter Abcc4 (Marquez et al. [2009] Antimicrob. Agents Chemother. 53: 2410-2416), encoded by the Abcc4 gene located on Chromosome 14qE4. In this study, we report the genomic alterations occurring along the selection process. Abcc4 expression progressively increased upon selection rounds, with exponential changes observed between cells exposed to 150 and 200 µM of ciprofloxacin, accompanied by a commensurate decrease in ciprofloxacin accumulation. Molecular cytogenetics experiments showed that this overexpression is linked to Abcc4 gene overrepresentation, grading from a partial trisomy of Chr 14 at the first step of selection (cells exposed to 100 µM ciprofloxacin), to low-level amplifications (around three copies) of Abcc4 locus on 1 or 2 Chr 14 (cells exposed to 150 µM ciprofloxacin), followed by high-level amplification of Abcc4 as homogeneous staining region (hsr), inserted on 3 different derivative Chromosomes (cells exposed to 200 µM ciprofloxacin). In revertant cells obtained after more than 60 passages of culture without drug, the Abcc4 hsr amplification was lost in approx. 70% of the population. These data suggest that exposing cells to sufficient concentrations of an antibiotic with low affinity for eukaryotic topoisomerases can cause major genomic alterations that may lead to the overexpression of the transporter responsible for its efflux. Gene amplification appears therefore as a mechanism of resistance that can be triggered by non-anticancer agents but contribute to cross-resistance, and is partially and slowly reversible.
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Affiliation(s)
- Béatrice Marquez
- Université catholique de Louvain, Louvain Drug Research Institute, Pharmacologie cellulaire et moléculaire, Brussels, Belgium
| | - Geneviève Ameye
- Université catholique de Louvain, Cliniques universitaires Saint-Luc, Centre de Génétique humaine, Brussels, Belgium
| | - Coralie M. Vallet
- Université catholique de Louvain, Louvain Drug Research Institute, Pharmacologie cellulaire et moléculaire, Brussels, Belgium
| | - Paul M. Tulkens
- Université catholique de Louvain, Louvain Drug Research Institute, Pharmacologie cellulaire et moléculaire, Brussels, Belgium
| | - Hélène A. Poirel
- Université catholique de Louvain, Cliniques universitaires Saint-Luc, Centre de Génétique humaine, Brussels, Belgium
| | - Françoise Van Bambeke
- Université catholique de Louvain, Louvain Drug Research Institute, Pharmacologie cellulaire et moléculaire, Brussels, Belgium
- * E-mail:
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Zounková R, Klimešová Z, Nepejchalová L, Hilscherová K, Bláha L. Complex evaluation of ecotoxicity and genotoxicity of antimicrobials oxytetracycline and flumequine used in aquaculture. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2011; 30:1184-1189. [PMID: 21312248 DOI: 10.1002/etc.486] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 08/31/2010] [Accepted: 12/10/2010] [Indexed: 05/30/2023]
Abstract
Ecotoxicity and genotoxicity of widely used veterinary antimicrobials oxytetracycline and flumequine was studied with six model organisms (Vibrio fischeri, Pseudomonas putida, Pseudokirchneriella subcapitata, Lemna minor, Daphnia magna, Escherichia coli). Overall median effective concentration (EC50) values ranged from 0.22 mg/L to 86 mg/L. Pseudomonas putida was the most sensitive organism (EC50 values for 16-h growth inhibition were 0.22 and 0.82 mg/L for oxytetracycline and flumequine, respectively), followed by duckweed Lemna minor (7-d growth inhibition, EC50 2.1 and 3.0 mg/L) and green alga Pseudokirchneriella subcapitata (4-d growth inhibition, EC50 3.1 and 2.6 mg/L). The least sensitive organism was Daphnia magna (48-h immobilization, lowest-observed-effect concentration [LOEC] of oxytetracycline of 400 mg/L). Oxytetracycline showed limited genotoxicity (SOS-chromotest with Escherichia coli, minimal genotoxic concentration of 500 mg/L), and flumequine was genotoxic at 0.25 mg/L. Based on the reported measured concentrations (MECs) and predicted no-effect concentrations (PNECs), oxytetracycline may be concluded to be of ecotoxicological concern (calculated risk quotient = 8), whereas flumequine seems to represent lower risk.
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Affiliation(s)
- Radka Zounková
- Research Centre for Toxic Compounds in the Environment, Masaryk University, Czech Republic.
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Nakamura T, Nakai M, Ookubo K, Kitamura Y, Doe N, Hattori S, Murakami N, Yamamoto A, Honda G, Sasaki YF. Genotoxicity-suppressing Effect of Aqueous Extract of Connarus ruber Cortex. Genes Environ 2011. [DOI: 10.3123/jemsge.33.81] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Kaatsch P, Scheidemann-Wesp U, Schüz J. Maternal use of antibiotics and cancer in the offspring: results of a case-control study in Germany. Cancer Causes Control 2010; 21:1335-45. [PMID: 20390445 DOI: 10.1007/s10552-010-9561-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2009] [Accepted: 03/30/2010] [Indexed: 12/11/2022]
Abstract
OBJECTIVE As previous results were inconsistent, we assessed the association between maternal use of antibiotics during pregnancy or 3 months before conception and childhood cancer in the offspring in a large case-control study in Germany. METHODS This population-based study on potential risk factors for childhood cancer was conducted by the German Childhood Cancer Registry (GCCR) and included a total of 1,867 registered cancer cases aged 0-14, diagnosed between October 1992 and September 1994. A total of 2,057 controls were randomly drawn from population registries, matched by age, gender, and region. Conditional logistic regression models for frequency-matched datasets were used to estimate odds ratios (OR) with 95% confidence intervals (95% CI). RESULTS Positive statistically significant associations with self-reported maternal antibiotic use were observed for acute lymphoid leukemia (based on 59 mothers exposed to antibiotics, OR = 1.47; 95% CI: 1.06-2.04), acute myeloid leukemia (18 exposed, OR = 3.21; 95% CI: 1.83-5.62), and Burkitt lymphoma (three exposed, OR = 5.89; 95% CI: 1.47-23.69), but not other cancer types. CONCLUSIONS The results provide some support for the hypothesis that maternal use of antibiotics increases the risk of cancer in the offspring. Although recall bias is a concern, it is unlikely that this fully explains the observed effect. Further, the observed associations might be related to the underlying infections.
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Affiliation(s)
- Peter Kaatsch
- German Childhood Cancer Registry, 55101 Mainz, Germany.
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A comparative analysis of chromosomal aberrations in cultured human lymphocytes due to fluoroquinolone drugs at different expression periods. Arch Toxicol 2010; 84:411-20. [DOI: 10.1007/s00204-009-0509-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Accepted: 12/22/2009] [Indexed: 10/20/2022]
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30
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Smart DJ. Genotoxicity of topoisomerase II inhibitors: An anti-infective perspective. Toxicology 2008; 254:192-8. [DOI: 10.1016/j.tox.2008.08.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 08/19/2008] [Accepted: 08/29/2008] [Indexed: 11/17/2022]
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Kilkkinen A, Rissanen H, Klaukka T, Pukkala E, Heliövaara M, Huovinen P, Männistö S, Aromaa A, Knekt P. Antibiotic use predicts an increased risk of cancer. Int J Cancer 2008; 123:2152-5. [PMID: 18704945 DOI: 10.1002/ijc.23622] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Antibiotic use has been hypothesized to be associated with the risk of cancer but the evidence is sparse and inconsistent. The aim of the present study was to determine whether antibiotic use predicts the development of various cancers. This nationwide cohort study included 3,112,624 individuals, aged 30-79 years, with no history of cancer. Information on their antibiotic use between 1995 and 1997 was obtained from the Drug Prescription Registry. During the period 1998-2004, 134,070 cancer cases were ascertained from the Finnish Cancer Registry. Cox proportional hazards regression was used to estimate the relative risks (RRs) with 95% confidence intervals (95% CIs). Antibiotic use was associated with an increased risk of cancer: for categories of increasing antibiotic use (0-1, 2-5 and >/=6 prescriptions), RRs (95% CIs) for cancer were 1.0 (reference), 1.27 (1.26-1.29) and 1.37 (1.34-1.40). RRs (for comparison of lowest and highest exposure group) for the most common primary sites i.e. prostate, breast, lung and colon were 1.39 (1.31-1.48), 1.14 (1.09-1.20), 1.79 (1.67-1.92), and 1.15 (1.04-1.26), respectively. RRs for other primary sites varied between 0.90 (0.76-1.05) for ovary to 2.60 (1.60-4.20) for endocrine gland (excluding thyroid). In conclusion, antibiotic use predicts an increased risk of cancer. Because of the design of our study the possibility of residual confounding cannot be excluded and further studies are required to confirm the results.
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Affiliation(s)
- Annamari Kilkkinen
- Department of Health and Functional Capacity, National Public Health Institute, Helsinki, Finland.
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Attia SM. Abatement by naringin of lomefloxacin-induced genomic instability in mice. Mutagenesis 2008; 23:515-21. [DOI: 10.1093/mutage/gen045] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Khaki A, Novin MG, Khaki AA, Nouri M, Sanati E, Nikmanesh M. Comparative study of the effects of gentamicin, neomycin, streptomycin and ofloxacin antibiotics on sperm parameters and testis apoptosis in rats. Pak J Biol Sci 2008; 11:1683-1689. [PMID: 18819619 DOI: 10.3923/pjbs.2008.1683.1689] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The aim of this study was to investigate the comparative effects of aminoglycosides and fluoroquinolones on testis apoptosis and sperm parameters in rats. Fifty male Wistar rats were randomly divided into control (n = 10) and experimental (n = 40) groups. The experimental groups subdivided into four groups often. Each received 5 mg kg(-1) (IP) gentamicin, 50 mg kg(-1) (IP) neomycin, 40 mg kg(-1) (IP) streptomycin and 72 mg kg(-1) (IP) ofloxacin daily for 14 days, respectively; however, the control group just received vehicle (IP). In the fourteenth day, rats were killed and sperm analyzed for sperm parameters. Testis tissues were also prepared for TUNEL assay for detection of apoptosis. There was a significant decrease in sperm count, viability and motility in all of experimental groups when compared with control group. Although in streptomycin group these parameters were less decreased than in the other experimental groups. The apoptotic cells were significantly increased in all experimental groups when compared with those seen in the controlled group. Gentamicin, neomycin and streptomycin and ofloxacin have negative effects on sperm parameters and testis apoptosis in rats. However, these side effects are less seen in the streptomycin group. Therefore, it is recommended that usage of this drug have fewer side effects on male fertility.
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Affiliation(s)
- Arash Khaki
- Department of Veterinary Pathology, Islamic Azad University, Tabriz Branch, Tabriz, Iran
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Smart DJ, Halicka HD, Traganos F, Darzynkiewicz Z, Williams GM. Ciprofloxacin-induced G2 arrest and apoptosis in TK6 lymphoblastoid cells is not dependent on DNA double-strand break formation. Cancer Biol Ther 2008; 7:113-9. [PMID: 18059176 PMCID: PMC2579770 DOI: 10.4161/cbt.7.1.5136] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Drugs developed for the treatment of conditions other than neoplasia can also show promise as potential antitumor agents. The fluoroquinolone antibiotic ciprofloxacin (CPFX) is known to modulate cycle cell progression and apoptosis in cancer cells, and is thought to induce DNA double-strand breaks (DSBs) via topoisomerase II (topo II) inhibition and stabilized cleavage complex (SCC) formation. DSBs trigger Ser-139 phosphorylation of histone H2AX (gammaH2AX) by PI-3-like kinases including ATM; gammaH2AX can serve as a marker of DNA damage when measured in situ using immunocytochemistry and flow cytometry. The aim of the present study was to investigate the relationship between CPFX-mediated DNA damage and induction of apoptosis in human lymphoblastoid cells and phytohaemagglutinin (PHA)-stimulated lymphocytes (Lymphs). Treatment of TK6 cells (wild-type p53) with 100 microg/ml CPFX for 2-10 h produced no increase in gammaH2AX; to the contrary, its level in S phase cells was reduced at 10 h compared to controls. Nevertheless, stabilization of topo IIalpha, ATM Ser-1981 phosphorylation and G(2) arrest was observed in TK6 cells exposed to CPFX for > or = 4 h. However, following 24 h treatment, gammaH2AX was dramatically increased in a sub-population of cells indicating the onset of apoptosis (confirmed by presence of activated caspase 3). CPFX had a similar lack of effect on induction of gammaH2AX at early time points in WTK1 and NH32 cells (devoid of functional p53) and proliferating Lymphs, however, induction of apoptosis was less pronounced than in TK6 cells. Formation of SCC and activation of ATM (but lack of gammaH2AX induction) indicates topo II-mediated chromatin or DNA changes in the absence of DSBs; ATM activation apparently triggers the G(2)M checkpoint leading to G(2) arrest. The subsequent induction of apoptosis appears to be facilitated by functional p53. CPFX may therefore have a potential use as a chemotherapeutic agent in the treatment of lymphoblast-derived cancer.
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Affiliation(s)
- Daniel J Smart
- Department of Pathology, New York Medical College, Valhalla, New York 10595, USA
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Demir A, Türker P, Onol FF, Sirvanci S, Findik A, Tarcan T. Effect of experimentally induced Escherichia coli epididymo-orchitis and ciprofloxacin treatment on rat spermatogenesis. Int J Urol 2007; 14:268-72. [PMID: 17430273 DOI: 10.1111/j.1442-2042.2007.01682.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We investigated the effects of epididymo-orchitis and ciprofloxacin on rat testicular histology and spermatogenesis. The control group underwent left orchiectomy. The second group received oral ciprofloxacin (150 mg/kg/day) for 10 days. Escherichia coli (10(6) cfu/mL, 0.1 mL) was injected into the proximal right ductus deferens in the third group. The fourth group received ciprofloxacin treatment 48 h after E. coli inoculation. In groups 3 and 4, bilateral orchiectomy was performed 14 days after the challenge. In healthy rats, ciprofloxacin caused recognizable histological damage associated with a mild decrease in testicular volume and sperm concentration. Infected testicles in groups 3 and 4 revealed severe histological damage associated with severe testicular atrophy and impaired spermatogenesis that were more significant in infected rats which received ciprofloxacin treatment. Contralateral testicles in these animals showed similar histopathological changes to a lesser extent. The results of our study suggest a gonadotoxic potential for ciprofloxacin and this potential in humans should be addressed with further studies.
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Affiliation(s)
- Aslan Demir
- Department of Urology, Marmara University School of Medicine, Tophanelioglu cd. 13-15, Altunizade (34662), Istanbul, Turkey
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Itoh T, Moto M, Takahashi M, Sakai H, Mitsumori K. Liver initiation activity of norfloxacin but not nalidixic acid, pipemidic acid, and ciprofloxacin on in vivo short-term liver initiation assay in rats. Toxicology 2006; 222:240-6. [PMID: 16580113 DOI: 10.1016/j.tox.2006.02.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2005] [Revised: 02/26/2006] [Accepted: 02/27/2006] [Indexed: 10/24/2022]
Abstract
This study aimed to examine the in vivo initiation activity of the quinolone antimicrobials--nalidixic acid (NA), pipemidic acid (PPA), ciprofloxacin (CPFX), and norfloxacin (NFLX)--by using an in vivo short-term liver initiation assay. Rats were subjected to a two-thirds partial hepatectomy on day 0 and 12 h after completion of this procedure were treated once orally with each quinolone or vehicle. Subsequently, they were fed a basal diet for 14 days and a diet containing 0.015% of 2-acetylaminofluorene for the following 10 days. On day 19, a single oral dose of carbon tetrachloride at 0.8 mL/kg body weight was administered. On day 34, they were sacrificed under ether anesthesia, and liver slices were fixed in 10% neutral buffered formalin for immunohistochemical examination of glutathione S-transferase placental form (GST-P) positive foci. Administration of NFLX resulted in a significant increase in the mean number and area of GST-P positive foci; however, administration of the three other quinolones did not produce any increase. These results suggest that only NFLX has an initiation activity in rats under the conditions used in the present study.
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Affiliation(s)
- Tadashi Itoh
- Laboratory of Veterinary Pathology, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
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