DNA methylation changes in promoter region of CDKN2A gene in workers exposed in construction environment.
Biomarkers
; 25(7): 594-602, 2020 Nov.
Article
em En
| MEDLINE
| ID: mdl-32875942
ABSTRACT
PURPOSE:
Construction workers are exposed to a mixture of substances in the workplace considered carcinogenic. This study aimed to characterise gene-specific changes in DNA methylation over the workweek in this population as this type of environmental exposure has not been studied extensively. MATERIALS ANDMETHODS:
We evaluated their DNA methylation in 4 gene-promoter regions (CDKN2A, RASSF1A, MLH1 and APC) and 2 repeat elements (ALU and LINE-1) in blood samples obtained on the first and fifth day of the same workweek of a group of 39 male construction workers. DNA methylation was measured by bisulphite-PCR-Pyrosequencing. We also measured the levels of trace elements in the whole blood by ICP-MS.RESULTS:
Only the CDKN2A gene had significant differences in the average methylation level between the first and fifth day of the workweek. We also observed that the levels of Cu, Pb, Se, Mn, and Ti decreased during the fifth day of exposure, and only lead, titanium and copper showed a low significant correlation with the methylation level mean for three specific CpG sites of the CDKN2A.CONCLUSIONS:
In summary, the data suggest that altered levels of CDKN2A methylation in construction workers may be a potential biomarker of recent exposure in this environment.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Exposição Ocupacional
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Metilação de DNA
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Inibidor p16 de Quinase Dependente de Ciclina
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Epigênese Genética
Limite:
Adult
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Humans
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Male
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article