PMID- 24187405 OWN - NLM STAT- MEDLINE DCOM- 20140312 LR - 20140103 IS - 1945-7197 (Electronic) IS - 0021-972X (Linking) VI - 99 IP - 1 DP - 2014 Jan TI - HLA class II haplotypes differentiate between the adult autoimmune polyglandular syndrome types II and III. PG - E177-82 LID - 10.1210/jc.2013-2852 [doi] AB - BACKGROUND: Genetics of the adult autoimmune polyglandular syndrome (APS) is poorly understood. AIM: The aim of this study was to gain further insight into the genetics of the adult APS types. SITE: The study was conducted at a university referral center. METHODS: The human leukocyte antigen (HLA) class II alleles, haplotypes, and genotypes were determined in a large cohort of patients with APS, autoimmune thyroid disease (AITD), and type 1 diabetes and in healthy controls by the consistent application of high-resolution typing at a four-digit level. RESULTS: Comparison of the allele and haplotype frequencies significantly discriminated patients with APS vs AITD and controls. The HLA class II alleles DRB1*03:01 *04:01, DQA1*03:01, *05:01, DQB1*02:01, and *03:02 were observed more frequently (P<.001) in APS than in AITD and controls, whereas the alleles DRB1*15:01, DQB1*03:01, and *06:02 were underrepresented in APS vs AITD (Pc<.001) and controls (Pc<.01), respectively. The DRB1*03:01-DQA1*05:01-DQB1*02:01 (DR3-DQ2) and DRB1*04:01-DQA1*03:01:DQB1*03:02 (DRB1*04:01-DQ8) haplotypes were overrepresented in APS (Pc<.001). Combination of both haplotypes to a genotype was highly prevalent in APS vs AITD and controls (Pc<.001). Dividing the APS collective into those with Addison's disease (APS type II) and those without Addison's disease but including type 1 diabetes and AITD (APS type III) demonstrated DR3-DQ2/DRB1*04:01-DQ8 as a susceptibility genotype in APS III (Pc<.001), whereas the DR3-DQ2/DRB1*04:04-DQ8 genotype correlated with APS II (Pc<.001). The haplotypes DRB1*11:01-DQA1*05:05-DQB1*03:01 and DRB1*15:01-DQA1*01:02-DQB1*06:02 are protective in APS III but not in type II (Pc<.01). CONCLUSIONS: HLA class II haplotypes differentiate between the adult APS types II and III. Susceptible haplotypes favor the development of polyglandular autoimmunity in patients with AITD. FAU - Flesch, B K AU - Flesch BK AD - Laboratory of Immunogenetics/HLA (B.K.F., C.W.), German Red Cross Blood Service West, Bad Kreuznach 55543, Germany; Molecular Thyroid Research Laboratory (N.M., G.J.K.), Johannes Gutenberg University Medical Center, Mainz 55101, Germany; Bioinformatics Unit (T.A.) and Center for Transfusion Medicine (J.B.), German Red Cross Blood Service West, Hagen 58097, Germany. FAU - Matheis, N AU - Matheis N FAU - Alt, T AU - Alt T FAU - Weinstock, C AU - Weinstock C FAU - Bux, J AU - Bux J FAU - Kahaly, G J AU - Kahaly GJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131220 PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 SB - IM MH - Adolescent MH - Adult MH - Case-Control Studies MH - Child MH - Diagnosis, Differential MH - Female MH - Gene Frequency MH - *Genes, MHC Class II MH - *Genetic Predisposition to Disease MH - Haplotypes MH - Humans MH - Male MH - Middle Aged MH - Polyendocrinopathies, Autoimmune/classification/*diagnosis/genetics MH - Young Adult EDAT- 2013/11/05 06:00 MHDA- 2014/03/13 06:00 CRDT- 2013/11/05 06:00 PHST- 2013/11/05 06:00 [entrez] PHST- 2013/11/05 06:00 [pubmed] PHST- 2014/03/13 06:00 [medline] AID - jc.2013-2852 [pii] AID - 10.1210/jc.2013-2852 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2014 Jan;99(1):E177-82. doi: 10.1210/jc.2013-2852. Epub 2013 Dec 20.