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Markowski M, Kaliński A, Wawrzyniak J, Glądalski M, Skwarska J, Bańbura J. Microsatellite Instability Assay as a Potential Approach to Evaluate Genotoxicity: Lead Exposure in a Nestling Passerine Bird at the Stage of Intensive Erythropoiesis. Animals (Basel) 2023; 13:ani13081325. [PMID: 37106888 PMCID: PMC10135023 DOI: 10.3390/ani13081325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Although many avian studies have investigated the toxic effects of lead on important biochemical and physiological processes, organ and system function, and behavior, studies evaluating the specific genotoxic effects of exposure to lead are scarce. Nowadays, rapid technological advances can provide new molecular techniques in this regard. In this study, as a novel approach in bird studies, we used a panel of ten microsatellite loci to investigate the microsatellite instability (MSI) in response to experimental lead intoxication in a common hole-nesting species, the great tit Parus major. For this purpose, an experiment based on an intentional single supplementation of a lead (II) acetate trihydrate compound was conducted, with the use of two different doses, applied to randomly chosen great tit nestlings from randomly selected broods, being at the stage of intensive erythropoiesis. Although this preliminary study did not find any MSI in the seven microsatellite markers retained for the final comparison, it contributes to the examination of this molecular technique in field conditions as being potentially applicable in ecotoxicological bird studies. We believe that certain issues should be considered in finding an explanation for our result. First, the single doses of lead used in this study may have been too weak to induce genetic instability. Second, the panel of microsatellite markers studied may have been unsusceptible to lead genotoxicity in general. Third, the relatively short time interval (5 days) between the experimental procedure (lead exposure) and the sampling of post-exposure material (blood) for genetic analyses could have limited the effect of lead genotoxicity. Further analyzes are needed to verify these findings and to evaluate the scope of application of the MSI analysis in wild bird population studies.
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Affiliation(s)
- Marcin Markowski
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Adam Kaliński
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Jarosław Wawrzyniak
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Michał Glądalski
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Joanna Skwarska
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Jerzy Bańbura
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
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Zhai Q, Qu D, Feng S, Yu Y, Yu L, Tian F, Zhao J, Zhang H, Chen W. Oral Supplementation of Lead-Intolerant Intestinal Microbes Protects Against Lead (Pb) Toxicity in Mice. Front Microbiol 2020; 10:3161. [PMID: 32038590 PMCID: PMC6987320 DOI: 10.3389/fmicb.2019.03161] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/31/2019] [Indexed: 12/12/2022] Open
Abstract
Oral exposure to the heavy metal lead (Pb) causes various dysfunctions in animals. However, the influence of gut bacteria on Pb absorption, bioaccumulation, and excretion is largely unknown. In this study, we use a mouse model to investigate the relationship between gut microbiota, Pb-intolerant intestinal microbes and Pb toxicity. First, mice were treated with a broad-spectrum antibiotic cocktail to deplete their gut microbiota, and were then acutely and orally exposed to Pb at 1304 mg/kg for 3 days. Compared to the control mice, antibiotic-treated mice had increased Pb concentrations in the blood and primary organs and decreased Pb fecal concentrations, suggesting that gut microbiota limited the Pb burden that developed from acute oral Pb exposure. Next, three Pb-intolerant gut microbes, Akkermansia muciniphila, Faecalibacterium prausnitzii, and Oscillibacter ruminantium, were orally administered to mice, and their effects against Pb toxicity were evaluated. F. prausnitzii treatment significantly promoted the fecal Pb excretion and reduced Pb concentrations in blood (from 152.70 ± 25.62 μg/dL to 92.20 ± 24.33 μg/dL) and primary tissues. Supplementation with O. ruminantium significantly decreased Pb concentrations in blood (from 152.70 ± 25.62 μg/dL to 104.60 ± 29.85 μg/dL) and kidney (from 7.30 ± 1.08 μg/g to 5.64 ± 0.79 μg/g). Treatment with F. prausnitzii and O. ruminantium also upregulated tight junction (TJ) protein expression and the production of short-chain fatty acids by colonic microbiota, and showed protective effects against liver and kidney toxicity. These results indicate the potential for reducing Pb toxicity by the modulation of gut microbiota.
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Affiliation(s)
- Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute, Wuxi, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, China
| | - Dingwu Qu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Saisai Feng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yaqi Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Research Center for Functional Food, Wuxi, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute, Wuxi, China
- Beijing Innovation Center of Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
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Bernardes PM, Andrade-Vieira LF, Aragão FB, Ferreira A, da Silva Ferreira MF. Toxicological effects of comercial formulations of fungicides based on procymidone and iprodione in seedlings and root tip cells of Allium cepa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:21013-21021. [PMID: 31119539 DOI: 10.1007/s11356-019-04636-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 02/19/2019] [Indexed: 06/09/2023]
Abstract
In this study the phytotoxic, cytotoxic, genotoxic and mutagenic effects of two commercial fungicide-active compounds, procymidone (PR) and iprodione (IP), were determined. The parameters evaluated were germination and root growth, mitotic index, chromosomal and nuclear aberrations, and molecular analyses were also performed in the model plant Allium cepa L. The results demonstrated that the active compounds PR and IP were phytotoxic, delaying germination and slowing the development of A. cepa seedlings. Moreover, PR and IP showed cytogenotoxicity towards A. cepa meristematic cells, inducing chromosomal changes and cell death. The mutagenic activity of the active compounds was demonstrated by the detection of DNA changes in simple sequence repeat (SSR) and inter-simple sequence repeat (ISSR) markers in the treated cells compared to the negative control. Together, these results contribute to a better understanding of the damage caused by these substances in living organisms and reveal a promising strategy for prospective studies of the toxic effects of environmental pollutants.
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Affiliation(s)
- Paula Mauri Bernardes
- Department of Agronomy, Center for Agricultural and Engineering Sciences (Centro de Ciências Agrárias e Engenharias, CCAE), Federal University of Espírito Santo (Universidade Federal do Espírito Santo), Alegre, ES, 29500-000, Brazil.
- Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Espírito Santo, (CCAE/UFES), Alegre, ES, 29500-000, Brazil.
| | | | - Francielen Barroso Aragão
- Department of Agronomy, Center for Agricultural and Engineering Sciences (Centro de Ciências Agrárias e Engenharias, CCAE), Federal University of Espírito Santo (Universidade Federal do Espírito Santo), Alegre, ES, 29500-000, Brazil
| | - Adésio Ferreira
- Department of Agronomy, Center for Agricultural and Engineering Sciences (Centro de Ciências Agrárias e Engenharias, CCAE), Federal University of Espírito Santo (Universidade Federal do Espírito Santo), Alegre, ES, 29500-000, Brazil
| | - Marcia Flores da Silva Ferreira
- Department of Agronomy, Center for Agricultural and Engineering Sciences (Centro de Ciências Agrárias e Engenharias, CCAE), Federal University of Espírito Santo (Universidade Federal do Espírito Santo), Alegre, ES, 29500-000, Brazil
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Wu CL, Huang LY, Chang CL. Linking arsenite- and cadmium-generated oxidative stress to microsatellite instability in vitro and in vivo. Free Radic Biol Med 2017; 112:12-23. [PMID: 28690196 DOI: 10.1016/j.freeradbiomed.2017.07.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 07/03/2017] [Accepted: 07/05/2017] [Indexed: 11/27/2022]
Abstract
Mismatch repair (MMR) corrects replicative errors and minimizes DNA damage that occurs frequently in microsatellites. MMR deficiency is manifested as microsatellite instability (MSI), which contributes to hypermutability and cancer pathogenesis. Genomic instability, including MSI and chromosomal instability, appears to be responsible for the carcinogenesis of arsenic and cadmium, common contaminants in our environment. However, few studies have addressed arsenic- or cadmium-induced MSI, especially its potential link with arsenic- or cadmium-generated oxidative stress, due to the lack of quantifiable MSI assays and cost-effective animal models. Here, using a dual-fluorescent reporter, we demonstrate that sub-lethal doses of cadmium or arsenite, but not arsenate, increased the MSI frequency in human colorectal cancer cells. Arsenite- and cadmium-induced MSI occurred concomitantly with increased levels of reactive species and oxidative DNA damage, and with decreased levels of MMR proteins. However, N-acetyl-l-cysteine (NAC) suppressed arsenite- and cadmium-induced MSI and oxidative stress while restoring the levels of MMR proteins in the cells. Similarly, MSI was induced separately by arsenite and cadmium, and suppressed by NAC, in zebrafish in a fluorescinated PCR-based assay with newly-developed microsatellite markers and inter-segmental comparisons. Of five selected antioxidants examined, differential effects were exerted on the MSI induction and cytotoxicity of both arsenite and cadmium. Compared to MMR-proficient cells, MMR-deficient cells were more resistant to arsenic-mediated and cadmium-mediated cytotoxicity. Our findings demonstrate a novel linkage between arsenite-generated and cadmium-generated oxidative stress and MSI induction. Our findings also caution that antioxidants must be individually validated before being used for preventing arsenite- and cadmium-induced MSI that is associated with cancer development.
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Affiliation(s)
- Chang-Lin Wu
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan, ROC
| | - Li-Yan Huang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan, ROC
| | - Christina L Chang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan, ROC; Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan, ROC.
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Tan S, Li H, Jin Y, Yu H. In vitro and in vivo effects of sublethal cadmium on the expression of MT2 and ABCC2 genes in grass carp (Ctenopharyngodon idellus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 108:258-264. [PMID: 25103569 DOI: 10.1016/j.ecoenv.2014.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 07/09/2014] [Accepted: 07/11/2014] [Indexed: 06/03/2023]
Abstract
To gain more knowledge about the physiological regulation of metal pollutant detoxification in grass carp, we examined Cd concentration and its the potential influence on the expression of metallothionein 2 (MT2) and multidrug resistance protein 2 (ABCC2) mRNA in the liver and kidney, using in vitro and in vivo experiments. First, the full-length of MT2 cDNA and partial ABCC2 cDNA was obtained, consisting 183bp and 366bp respectively. In vivo approach, grass carp received 96h exposure of Cd (1/10 LD50), and MT2 and ABCC2 mRNA expression were determined by qRT-PCR. The Cd treatment resulted in an increase of MT2 mRNA level in the liver with Cd accumulation. Nonetheless, the elevation ABCC2 mRNA in the liver was appeared at 48h after Cd exposure, as well as the expression of MT2 and ABCC2 mRNA in the kidney. The in vitro experiment was carried out using the hepatocyte (L86) and nephroblasts (CIK). The qRT-RCR results showed that MT2 and ABCC2 mRNA dramatically increased following Cd exposure (1/10 LD50); however, ABCC2 mRNA expression was suppressed in the L86 cell line at first (6h). In conclusion, this result suggested that both MT2 and ABCC2 mRNA may play important roles in the detoxification of toxic metals, and MT2 gene was more sensitive to Cd induction.
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Affiliation(s)
- Shuwen Tan
- College of Life Science, Foshan University, No. 1 Xianhu University Road, Nanhai, Foshan, Guangdong 528231, China; Holdone Aquaculture Breeding Limited Company, Foshan, Guangdong 528231, China
| | - Hua Li
- College of Life Science, Foshan University, No. 1 Xianhu University Road, Nanhai, Foshan, Guangdong 528231, China; Holdone Aquaculture Breeding Limited Company, Foshan, Guangdong 528231, China
| | - Ying Jin
- College of Biophotonics, South China Normal University, Guangzhou, Guangdong 510631, China
| | - Hui Yu
- College of Life Science, Foshan University, No. 1 Xianhu University Road, Nanhai, Foshan, Guangdong 528231, China; Holdone Aquaculture Breeding Limited Company, Foshan, Guangdong 528231, China.
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Bhattacharjee P, Banerjee M, Giri AK. Role of genomic instability in arsenic-induced carcinogenicity. A review. ENVIRONMENT INTERNATIONAL 2013; 53:29-40. [PMID: 23314041 DOI: 10.1016/j.envint.2012.12.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 12/04/2012] [Accepted: 12/09/2012] [Indexed: 06/01/2023]
Abstract
Exposure to chronic arsenic toxicity is associated with cancer. Although unstable genome is a characteristic feature of cancer cells, the mechanisms leading to genomic instability in arsenic-induced carcinogenesis are poorly understood. While there are excellent reviews relating to genomic instability in general, there is no comprehensive review presenting the mechanisms involved in arsenic-induced genomic instability. This review was undertaken to present the current state of research in this area and to highlight the major mechanisms that may involved in arsenic-induced genomic instability leading to cancer. Genomic instability is broadly classified into chromosomal instability (CIN), primarily associated with mitotic errors; and microsatellite instability (MIN), associated with DNA level instability. Arsenic-induced genomic instability is essentially multi-factorial in nature and involves molecular cross-talk across several cellular pathways, and is modulated by a number of endogenous and exogenous factors. Arsenic and its metabolites generate oxidative stress, which in turn induces genomic instability through DNA damage, irreversible DNA repair, telomere dysfunction, mitotic arrest and apoptosis. In addition to genetic alteration; epigenetic regulation through promoter methylation and miRNA expression alters gene expression profiling leading to genome more vulnerable and unstable towards cancer risk. Moreover, mutations or silencing of pro-apoptotic genes can lead to genomic instability by allowing survival of damaged cells that would otherwise die. Although a large body of information is now generated regarding arsenic-induced carcinogenesis; further studies exploring genome-wide association, role of environment and diet are needed for a better understanding of the arsenic-induced genomic instability.
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Affiliation(s)
- Pritha Bhattacharjee
- Molecular and Human Genetics Division, CSIR-Indian Institute of Chemical Biology, Kolkata-700 032, India
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