Cigarette smoking and DNA methylation

DNA methylation is the most studied epigenetic modification, capable of controlling gene expression in the contexts of normal traits or diseases. It is highly dynamic during early embryogenesis and remains relatively stable throughout life, and such patterns are intricately related to human developm...

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Main Authors: Ken W.K Lee, Zdenka ePausova
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-07-01
Series:Frontiers in Genetics
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00132/full
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author Ken W.K Lee
Zdenka ePausova
author_facet Ken W.K Lee
Zdenka ePausova
author_sort Ken W.K Lee
collection DOAJ
description DNA methylation is the most studied epigenetic modification, capable of controlling gene expression in the contexts of normal traits or diseases. It is highly dynamic during early embryogenesis and remains relatively stable throughout life, and such patterns are intricately related to human development. DNA methylation is a quantitative trait determined by a complex interplay of genetic and environmental factors. Genetic variants at a specific locus can influence both regional and distant DNA methylation. The environment can have varying effects on DNA methylation depending on when the exposure occurs, such as during prenatal life or during adulthood. In particular, cigarette smoking in the context of both current smoking and prenatal exposure is a strong modifier of DNA methylation. Epigenome-wide association studies have uncovered candidate genes associated with cigarette smoking that have biologically relevant functions in the etiology of smoking-related diseases. As such, DNA methylation is a potential mechanistic link between current smoking and cancer, as well as prenatal cigarette-smoke exposure and the development of adult chronic diseases.
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spelling doaj.art-f77e27ff1e1f405aaa0b5c93abf2a9082022-12-21T18:54:40ZengFrontiers Media S.A.Frontiers in Genetics1664-80212013-07-01410.3389/fgene.2013.0013255185Cigarette smoking and DNA methylationKen W.K Lee0Zdenka ePausova1The Hospital for Sick ChildrenThe Hospital for Sick ChildrenDNA methylation is the most studied epigenetic modification, capable of controlling gene expression in the contexts of normal traits or diseases. It is highly dynamic during early embryogenesis and remains relatively stable throughout life, and such patterns are intricately related to human development. DNA methylation is a quantitative trait determined by a complex interplay of genetic and environmental factors. Genetic variants at a specific locus can influence both regional and distant DNA methylation. The environment can have varying effects on DNA methylation depending on when the exposure occurs, such as during prenatal life or during adulthood. In particular, cigarette smoking in the context of both current smoking and prenatal exposure is a strong modifier of DNA methylation. Epigenome-wide association studies have uncovered candidate genes associated with cigarette smoking that have biologically relevant functions in the etiology of smoking-related diseases. As such, DNA methylation is a potential mechanistic link between current smoking and cancer, as well as prenatal cigarette-smoke exposure and the development of adult chronic diseases.http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00132/fullDNA MethylationepigeneticsepigenomePrenatal exposurecigarette smoking
spellingShingle Ken W.K Lee
Zdenka ePausova
Cigarette smoking and DNA methylation
Frontiers in Genetics
DNA Methylation
epigenetics
epigenome
Prenatal exposure
cigarette smoking
title Cigarette smoking and DNA methylation
title_full Cigarette smoking and DNA methylation
title_fullStr Cigarette smoking and DNA methylation
title_full_unstemmed Cigarette smoking and DNA methylation
title_short Cigarette smoking and DNA methylation
title_sort cigarette smoking and dna methylation
topic DNA Methylation
epigenetics
epigenome
Prenatal exposure
cigarette smoking
url http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00132/full
work_keys_str_mv AT kenwklee cigarettesmokinganddnamethylation
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