Intracellular accumulation and DNA damage caused by methylmercury in glial cells
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Digital do Instituto Evandro Chagas (Patuá) |
Texto Completo: | http://patua.iec.gov.br//handle/iec/4590 |
Resumo: | Mercury is widely used in industrial and extractive processes, and the improper disposal of waste or products containing this metal produces a significant impact on ecosystems, causing adverse effects on living organisms, including humans. Exposure to methylmercury, a highly toxic organic compound, causes important neurological and developmental impairments. Recently, the genotoxicity of mercurial compounds has gained prominence as one of the possible mechanisms associated with the neurological effects of mercury, mostly by disturbing the mitotic spindle and causing chromosome loss. In this sense, it is important to investigate if these compounds can also cause direct damage to DNA, such as single and double-strand breaks. Thus, the aim of this study was to investigate the cytotoxic and genotoxic potential of methylmercury in cell lines derived from neurons (B103) and glia (C6), exposed to methylmercury (MeHg) for 24 h, by analyzing cell viability, metabolic activity, and damage to DNA and chromosomes. We found that in comparison to the neuronal cell line, glial cells showed higher tolerance to MeHg, and therefore a higher LC50 and consequent higher intracellular accumulation of Hg, which led to the occurrence of several genotoxic effects, as evidenced by the presence of micronuclei, bridges, sprouts, and chromosomal aberrations |
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Sousa, Aline HolandaPereira, João Paulo GoesMalaquias, Allan CostaSagica, Fernanda do Espirito SantoOliveira, Edivaldo Herculano Corrêa de2022-08-08T12:57:04Z2022-08-08T12:57:04Z2022SOUSA, Aline Holanda et al. Intracellular accumulation and DNA damage caused by methylmercury in glial cells. Journal of Biochemical and Molecular Toxicology, v. xx, n. e23170, p. xx, July 2022. DOI: 10.1002/jbt.23170.1099-0461http://patua.iec.gov.br//handle/iec/459010.1002/jbt.23170Mercury is widely used in industrial and extractive processes, and the improper disposal of waste or products containing this metal produces a significant impact on ecosystems, causing adverse effects on living organisms, including humans. Exposure to methylmercury, a highly toxic organic compound, causes important neurological and developmental impairments. Recently, the genotoxicity of mercurial compounds has gained prominence as one of the possible mechanisms associated with the neurological effects of mercury, mostly by disturbing the mitotic spindle and causing chromosome loss. In this sense, it is important to investigate if these compounds can also cause direct damage to DNA, such as single and double-strand breaks. Thus, the aim of this study was to investigate the cytotoxic and genotoxic potential of methylmercury in cell lines derived from neurons (B103) and glia (C6), exposed to methylmercury (MeHg) for 24 h, by analyzing cell viability, metabolic activity, and damage to DNA and chromosomes. We found that in comparison to the neuronal cell line, glial cells showed higher tolerance to MeHg, and therefore a higher LC50 and consequent higher intracellular accumulation of Hg, which led to the occurrence of several genotoxic effects, as evidenced by the presence of micronuclei, bridges, sprouts, and chromosomal aberrationsConselho Nacional de Desenvolvimento Cientifico e Tecnologico, Grant/Award Number: 307382/2019-2Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós Graduação em Epidemiologia e vigilância em Saúde. Ananindeua, PA, Brasil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós Graduação em Epidemiologia e vigilância em Saúde. Ananindeua, PA, Brasil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Universidade Federal do Pará - Campus de Altamira. Faculdade de Medicina. Altamira, PA, Brazil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil / Universidade Federal do Pará. Faculdade de Ciências Naturais. Belém, PA, Brazil.engWileyIntracellular accumulation and DNA damage caused by methylmercury in glial cellsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCompostos de Metilmercúrio / toxicidadeBiomarcadores / análiseGenotoxicidadeDano ao DNA / genéticaNeurogliainfo:eu-repo/semantics/embargoedAccessreponame:Repositório Digital do Instituto Evandro Chagas (Patuá)instname:Instituto Evandro Chagas (IEC)instacron:IECORIGINALAcesso Embargado.pdfAcesso Embargado.pdfapplication/pdf551083https://patua.iec.gov.br/bitstreams/4126dbb4-ff77-4206-a2d0-86070406d721/downloadc9a9c128e29cac82a5d7fdf3f4e6da73MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-82182https://patua.iec.gov.br/bitstreams/041c67f0-c084-4cf8-bd46-ff1d58b451b0/download11832eea31b16df8613079d742d61793MD52TEXTAcesso Embargado.pdf.txtAcesso Embargado.pdf.txtExtracted texttext/plain2https://patua.iec.gov.br/bitstreams/8342adf0-313e-47d3-9f10-5ef7ecf85724/downloade1c06d85ae7b8b032bef47e42e4c08f9MD55THUMBNAILAcesso Embargado.pdf.jpgAcesso Embargado.pdf.jpgGenerated Thumbnailimage/jpeg3095https://patua.iec.gov.br/bitstreams/0a08651e-5c01-4581-adc5-0fb8a2a7b099/download71859d578212107f7f8c49a4ce09d9eeMD56iec/45902022-10-20 21:18:18.544oai:patua.iec.gov.br:iec/4590https://patua.iec.gov.brRepositório InstitucionalPUBhttps://patua.iec.gov.br/oai/requestclariceneta@iec.gov.br || Biblioteca@iec.gov.bropendoar:2022-10-20T21:18:18Repositório Digital do Instituto Evandro Chagas (Patuá) - Instituto Evandro Chagas (IEC)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 |
dc.title.pt_BR.fl_str_mv |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells |
title |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells |
spellingShingle |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells Sousa, Aline Holanda Compostos de Metilmercúrio / toxicidade Biomarcadores / análise Genotoxicidade Dano ao DNA / genética Neuroglia |
title_short |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells |
title_full |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells |
title_fullStr |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells |
title_full_unstemmed |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells |
title_sort |
Intracellular accumulation and DNA damage caused by methylmercury in glial cells |
author |
Sousa, Aline Holanda |
author_facet |
Sousa, Aline Holanda Pereira, João Paulo Goes Malaquias, Allan Costa Sagica, Fernanda do Espirito Santo Oliveira, Edivaldo Herculano Corrêa de |
author_role |
author |
author2 |
Pereira, João Paulo Goes Malaquias, Allan Costa Sagica, Fernanda do Espirito Santo Oliveira, Edivaldo Herculano Corrêa de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Sousa, Aline Holanda Pereira, João Paulo Goes Malaquias, Allan Costa Sagica, Fernanda do Espirito Santo Oliveira, Edivaldo Herculano Corrêa de |
dc.subject.decsPrimary.pt_BR.fl_str_mv |
Compostos de Metilmercúrio / toxicidade Biomarcadores / análise Genotoxicidade Dano ao DNA / genética Neuroglia |
topic |
Compostos de Metilmercúrio / toxicidade Biomarcadores / análise Genotoxicidade Dano ao DNA / genética Neuroglia |
description |
Mercury is widely used in industrial and extractive processes, and the improper disposal of waste or products containing this metal produces a significant impact on ecosystems, causing adverse effects on living organisms, including humans. Exposure to methylmercury, a highly toxic organic compound, causes important neurological and developmental impairments. Recently, the genotoxicity of mercurial compounds has gained prominence as one of the possible mechanisms associated with the neurological effects of mercury, mostly by disturbing the mitotic spindle and causing chromosome loss. In this sense, it is important to investigate if these compounds can also cause direct damage to DNA, such as single and double-strand breaks. Thus, the aim of this study was to investigate the cytotoxic and genotoxic potential of methylmercury in cell lines derived from neurons (B103) and glia (C6), exposed to methylmercury (MeHg) for 24 h, by analyzing cell viability, metabolic activity, and damage to DNA and chromosomes. We found that in comparison to the neuronal cell line, glial cells showed higher tolerance to MeHg, and therefore a higher LC50 and consequent higher intracellular accumulation of Hg, which led to the occurrence of several genotoxic effects, as evidenced by the presence of micronuclei, bridges, sprouts, and chromosomal aberrations |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-08-08T12:57:04Z |
dc.date.available.fl_str_mv |
2022-08-08T12:57:04Z |
dc.date.issued.fl_str_mv |
2022 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SOUSA, Aline Holanda et al. Intracellular accumulation and DNA damage caused by methylmercury in glial cells. Journal of Biochemical and Molecular Toxicology, v. xx, n. e23170, p. xx, July 2022. DOI: 10.1002/jbt.23170. |
dc.identifier.uri.fl_str_mv |
http://patua.iec.gov.br//handle/iec/4590 |
dc.identifier.issn.pt_BR.fl_str_mv |
1099-0461 |
dc.identifier.doi.pt_BR.fl_str_mv |
10.1002/jbt.23170 |
identifier_str_mv |
SOUSA, Aline Holanda et al. Intracellular accumulation and DNA damage caused by methylmercury in glial cells. Journal of Biochemical and Molecular Toxicology, v. xx, n. e23170, p. xx, July 2022. DOI: 10.1002/jbt.23170. 1099-0461 10.1002/jbt.23170 |
url |
http://patua.iec.gov.br//handle/iec/4590 |
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eng |
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eng |
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info:eu-repo/semantics/embargoedAccess |
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Wiley |
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Wiley |
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reponame:Repositório Digital do Instituto Evandro Chagas (Patuá) instname:Instituto Evandro Chagas (IEC) instacron:IEC |
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