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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Chromosome 9p21 SNPs associated with multiple disease phenotypes correlate with ANRIL expression
PLoS Genetics, Volume 6, No. 4, Year 2010
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Description
Single nucleotide polymorphisms (SNPs) on chromosome 9p21 are associated with coronary artery disease, diabetes, and multiple cancers. Risk SNPs are mainly non-coding, suggesting that they influence expression and may act in cis. We examined the association between 56 SNPs in this region and peripheral blood expression of the three nearest genes CDKN2A, CDKN2B, and ANRIL using total and allelic expression in two populations of healthy volunteers: 177 British Caucasians and 310 mixed-ancestry South Africans. Total expression of the three genes was correlated (P<0.05), suggesting that they are co-regulated. SNP associations mapped by allelic and total expression were similar (r = 0.97, P = 4.8×10-99), but the power to detect effects was greater for allelic expression. The proportion of expression variance attributable to cisacting effects was 8% for CDKN2A, 5% for CDKN2B, and 20% for ANRIL. SNP associations were similar in the two populations (r = 0.94, P = 10-72). Multiple SNPs were independently associated with expression of each gene (P<0.05 after correction for multiple testing), suggesting that several sites may modulate disease susceptibility. Individual SNPs correlated with changes in expression up to 1.4-fold for CDKN2A, 1.3-fold for CDKN2B, and 2-fold for ANRIL. Risk SNPs for coronary disease, stroke, diabetes, melanoma, and glioma were all associated with allelic expression of ANRIL (all P<0.05 after correction for multiple testing), while association with the other two genes was only detectable for some risk SNPs. SNPs had an inverse effect on ANRIL and CDKN2B expression, supporting a role of antisense transcription in CDKN2B regulation. Our study suggests that modulation of ANRIL expression mediates susceptibility to several important human diseases. © 2010 Cunnington et al.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s001.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s002.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s003.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s004.doc
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https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s006.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s007.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s008.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s009.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s010.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s011.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s012.doc
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https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s014.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC2851566/bin/pgen.1000899.s015.doc
Authors & Co-Authors
Cunnington, Michael S.
United Kingdom, Newcastle
Newcastle University
Santibanez-Koref, Mauro
United Kingdom, Newcastle
Newcastle University
Mayosi, Bongani M.
South Africa, Cape Town
University of Cape Town
Burn, John
United Kingdom, Newcastle
Newcastle University
Keavney, Bernard D.
United Kingdom, Newcastle
Newcastle University
Statistics
Citations: 374
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1371/journal.pgen.1000899
e-ISSN:
15537404
Research Areas
Genetics And Genomics
Noncommunicable Diseases