PMID- 18507785 OWN - NLM STAT- MEDLINE DCOM- 20091112 LR - 20090402 IS - 1399-3038 (Electronic) IS - 0905-6157 (Linking) VI - 20 IP - 2 DP - 2009 Mar TI - Association of early growth response-1 gene polymorphisms with total IgE and atopy in asthmatic children. PG - 142-50 LID - 10.1111/j.1399-3038.2008.00757.x [doi] AB - Early growth response-1 (Egr-1) is expressed in human airways and found to modulate tumor necrosis factor, immunoglobulin E (IgE), airway responsiveness, and interleukin-13-induced inflammation in mice. We investigated the effects of Chinese-tagging single nucleotide polymorphisms (SNPs) of Egr-1 on asthma traits in 298 Chinese asthmatic children and 175 controls, and a replication community cohort of 191 controls. Tag SNP (-4071 A-->G) and three additional SNPs (-1427 C-->T, -151 C-->T and IVS1 -42 C-->T) were genotyped by restriction fragment length polymorphism (RFLP). Significant associations were found between plasma total IgE concentration and -4071 A-->G (p = 0.008) and IVS1 -42 C-->T (p = 0.027) in asthmatic patients. After Bonferroni correction, only -4071 A-->G showed significant association. Multivariate regression analysis confirmed this significant association with a standardized coefficient beta of 0.156 (95% CI: 0.046-0.317; p = 0.009) in asthmatics among the three SNPs with age and gender-adjusted. In -4071 A-->G, IgE(log) was significantly higher in patients with the GG genotype than the AA genotype (p = 0.009). In addition, -4071 A-->G was significantly associated with atopy (p = 0.016) and high total IgE concentration (p = 0.030) among asthmatics. Patients with the G allele had a 3.5-fold risk of having atopy and a 2.0-fold risk of having high total IgE concentration than those homozygous for the A allele. This is the first report to show significant association of Egr-1 polymorphisms with plasma total IgE and atopy in asthmatics. It may help to explore the pharmacogenetics of Egr-1 inhibitors. FAU - Chan, Iris H S AU - Chan IH AD - Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong. FAU - Tang, Nelson L S AU - Tang NL FAU - Leung, Ting F AU - Leung TF FAU - Huang, W AU - Huang W FAU - Lam, Yvonne Y O AU - Lam YY FAU - Wong, Gary W K AU - Wong GW FAU - Chan, Juliana C N AU - Chan JC FAU - Chan, Michael H M AU - Chan MH FAU - Wong, Chun K AU - Wong CK FAU - Zhang, Ya P AU - Zhang YP FAU - Lam, Christopher W K AU - Lam CW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080528 PL - England TA - Pediatr Allergy Immunol JT - Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology JID - 9106718 RN - 0 (Antigens, Dermatophagoides) RN - 0 (Early Growth Response Protein 1) RN - 0 (Epitopes) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adolescent MH - Animals MH - Antigens, Dermatophagoides/*immunology MH - Asthma/blood/*genetics/*immunology MH - Cats/immunology MH - Child MH - Child, Preschool MH - Cockroaches/immunology MH - Dermatophagoides pteronyssinus/immunology MH - Dogs/immunology MH - Early Growth Response Protein 1/*genetics/immunology MH - Epitopes MH - Female MH - Genotype MH - Humans MH - Immunoglobulin E/*blood MH - Linkage Disequilibrium MH - Male MH - Polymorphism, Single Nucleotide MH - Spirometry EDAT- 2008/05/30 09:00 MHDA- 2009/11/13 06:00 CRDT- 2008/05/30 09:00 PHST- 2008/05/30 09:00 [pubmed] PHST- 2009/11/13 06:00 [medline] PHST- 2008/05/30 09:00 [entrez] AID - PAI757 [pii] AID - 10.1111/j.1399-3038.2008.00757.x [doi] PST - ppublish SO - Pediatr Allergy Immunol. 2009 Mar;20(2):142-50. doi: 10.1111/j.1399-3038.2008.00757.x. Epub 2008 May 28.