Epigenome-wide association data implicate DNA methylation as an intermediary of genetic risk in rheumatoid arthritis.
Epigenome-wide association data implicate DNA methylation as an intermediary of genetic risk in rheumatoid arthritis.
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DOI:
10.1038/nbt.2487
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发表时间:
2013-02
影响因子:
46.9
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中科院分区:
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Epigenetic mechanisms integrate genetic and environmental causes of disease. Comprehensive genome-wide analyses of epigenetic modifications have not demonstrated robust association with common diseases. Using Illumina HumanMethylation450 arrays on 354 ACPA positive rheumatoid arthritis (RA) cases and 337 controls, we identified two clusters within the MHC region whose differential methylation potentially mediates genetic risk for RA. To reduce confounding hampering previous epigenome-wide studies, we corrected for cellular heterogeneity by estimating and adjusting for cell-type proportions and used mediation analysis to filter out associations likely consequential to disease. Four CpGs also showed association between genotype and variance of methylation in addition to mean. The associations for both clusters replicated at least one CpG (p<0.01), with the rest showing suggestive association, in monocytes in an independent 12 cases and 12 controls. Thus, DNA methylation is a potential mediator of genetic risk.
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影响因子:
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作者:
Keenan, Brendan T.;Chibnik, Lori B.;Cui, Jing;Ding, Bo;Padyukov, Leonid;Kallberg, Henrik;Bengtsson, Camilla;Klareskog, Lars;Alfredsson, Lars;Karlson, Elizabeth W.
通讯作者:
Karlson, Elizabeth W.
影响因子:
2.9
作者:
Millstein J;Zhang B;Zhu J;Schadt EE
通讯作者:
Schadt EE
DOI:
10.1038/nrg3000
发表时间:
2011-07-12
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
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影响因子:
4.5
作者:
Leek, Jeffrey T.;Storey, John D.
通讯作者:
Storey, John D.
DOI:
10.1073/pnas.0906183107
发表时间:
2010-01-26
影响因子:
11.1
作者:
Feinberg, Andrew P.;Irizarry, Rafael A.
通讯作者:
Irizarry, Rafael A.