TY - JOUR
T1 - A sequence variant on 17q21 is associated with age at onset and severity of asthma
AU - Halapi, Eva
AU - Gudbjartsson, Daniel F
AU - Jonsdottir, Gudrun M
AU - Bjornsdottir, Unnur S
AU - Thorleifsson, Gudmar
AU - Helgadottir, Hafdis
AU - Williams, Carolyn
AU - Koppelman, Gerard H
AU - Heinzmann, Andrea
AU - Boezen, Hendrika
AU - Jonasdottir, Aslaug
AU - Blondal, Thorarinn
AU - Gudjonsson, Sigurjon A
AU - Jonasdottir, Adalbjorg
AU - Thorlacius, Theodora
AU - Henry, Amanda P
AU - Altmueller, Janine
AU - Krueger, Marcus
AU - Shin, Hyoung Doo
AU - Uh, Soo-Taek
AU - Cheong, Hyun Sub
AU - Jonsdottir, Brynja
AU - Ludviksson, Bjorn R
AU - Ludviksdottir, Dora
AU - Gislason, David
AU - Park, Choon-Sik
AU - Deichmann, Klaus
AU - Thompson, Philip J
AU - Wjst, Matthias
AU - Hall, Ian P
AU - Postma, Dirkje S
AU - Gislason, Thorarinn
AU - Kong, Augustine
AU - Jonsdottir, Ingileif
AU - Thorsteinsdottir, Unnur
AU - Stefansson, Kari
PY - 2010/8
Y1 - 2010/8
N2 - A sequence variant (rs7216389-T) near the ORMDL3 gene on chromosome 17q21 was recently found to be associated with childhood asthma. We sought to evaluate the effect of rs7216389-T on asthma subphenotypes and its correlation with expression levels of neighboring genes. The association of rs7216389-T with asthma was replicated in six European and one Asian study cohort (N=4917 cases N=34 589 controls). In addition, we found that the association of rs7216389-T was confined to cases with early onset of asthma, particularly in early childhood (age: 0-5 years OR=1.51, P=6.89.10(-9)) and adolescence (age: 14-17 years OR=1.71, P=5.47.10(-9)). A weaker association was observed for onset between 6 and 13 years of age (OR=1.17, P=0.035), but none for adult-onset asthma (OR=1.07, P=0.12). Cases were further stratified by sex, asthma severity and atopy status. An association with greater asthma severity was observed among early-onset asthma cases (P=0.0012), but no association with sex or atopy status was observed among the asthma cases. An association between sequence variants and the expression of genes in the 17q21 region was assessed in white blood cell RNA samples collected from Icelandic individuals (n=743). rs7216389 associated with the expression of GSDMB and ORMDL3 genes. However, other sequence variants showing a weaker association with asthma compared with that of rs7216389 were more strongly associated with the expression of both genes. Thus, the contribution of rs7216389-T to the development of asthma is unlikely to operate only through an impact on the expression of ORMDL3 or GSDMB genes.
AB - A sequence variant (rs7216389-T) near the ORMDL3 gene on chromosome 17q21 was recently found to be associated with childhood asthma. We sought to evaluate the effect of rs7216389-T on asthma subphenotypes and its correlation with expression levels of neighboring genes. The association of rs7216389-T with asthma was replicated in six European and one Asian study cohort (N=4917 cases N=34 589 controls). In addition, we found that the association of rs7216389-T was confined to cases with early onset of asthma, particularly in early childhood (age: 0-5 years OR=1.51, P=6.89.10(-9)) and adolescence (age: 14-17 years OR=1.71, P=5.47.10(-9)). A weaker association was observed for onset between 6 and 13 years of age (OR=1.17, P=0.035), but none for adult-onset asthma (OR=1.07, P=0.12). Cases were further stratified by sex, asthma severity and atopy status. An association with greater asthma severity was observed among early-onset asthma cases (P=0.0012), but no association with sex or atopy status was observed among the asthma cases. An association between sequence variants and the expression of genes in the 17q21 region was assessed in white blood cell RNA samples collected from Icelandic individuals (n=743). rs7216389 associated with the expression of GSDMB and ORMDL3 genes. However, other sequence variants showing a weaker association with asthma compared with that of rs7216389 were more strongly associated with the expression of both genes. Thus, the contribution of rs7216389-T to the development of asthma is unlikely to operate only through an impact on the expression of ORMDL3 or GSDMB genes.
KW - childhood asthma
KW - single-nucleotide polymorphism
KW - expression
KW - ORMDL3
KW - GSDMB
KW - GENOME-WIDE ASSOCIATION
KW - SUSCEPTIBILITY GENE
KW - ORMDL3 EXPRESSION
KW - RESEARCH-PROGRAM
KW - ATOPIC DISEASES
KW - POPULATION
KW - CHILDHOOD
KW - POLYMORPHISMS
KW - FAMILIES
KW - SEARCH
U2 - 10.1038/ejhg.2010.38
DO - 10.1038/ejhg.2010.38
M3 - Article
C2 - 20372189
SN - 1018-4813
VL - 18
SP - 902
EP - 908
JO - European Journal of Human Genetics
JF - European Journal of Human Genetics
IS - 8
ER -