PMID- 12963865 OWN - NLM STAT- MEDLINE DCOM- 20031030 LR - 20131121 IS - 1090-0535 (Electronic) IS - 1090-0535 (Linking) VI - 9 DP - 2003 Sep 2 TI - MICA association with presumed ocular histoplasmosis syndrome (POHS). PG - 420-4 AB - PURPOSE: MHC class I chain related gene A (MICA), a polymorphic and stress-inducible cell surface molecule, is located centromeric to human leukocyte antigen locus B (HLA-B) in the human leukocyte antigen (HLA) region on chromosome 6. MICA is thought to be involved in the innate immune response. An alanine repeat polymorphism is present in the MICA transmembrane region, for which several disease associations have been reported. Previous research indicated an association with the HLA-B7-DR2 haplotype. In this study we investigated the association of the polymorphic MICA alanine repeat and the ocular disease presumed ocular histoplasmosis syndrome (POHS). METHODS: Twenty-four patients and 106 controls were evaluated for the alanine repeat. A PCR reaction was performed to amplify the polymorphic MICA alanine repeat. Allele lengths of the MICA alanine repeat in patients and controls were determined with GeneScan analysis. RESULTS: No significant associations were observed. Phenotype frequencies of the polymorphic MICA alanine repeat were not significantly different between POHS patients and controls. Neither in the complete patient group compared with the control group nor in one of the subdivided patient groups compared with the control group. CONCLUSIONS: We conclude that the MICA alanine repeat is not a disease-associated factor in POHS. Further analysis of other genes in the B-DR region might elucidate the association of POHS with B7-DR2. FAU - Reinders, Judith AU - Reinders J AD - Department of Pathology, University Medical Centre Utrecht, Utrecht, The Netherlands. FAU - Rozemuller, Erik H AU - Rozemuller EH FAU - Ongkosuwito, Jenny V AU - Ongkosuwito JV FAU - Jager, Martine J AU - Jager MJ FAU - Tilanus, Marcel G J AU - Tilanus MG FAU - Suttorp-Schulten, Maria S A AU - Suttorp-Schulten MS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20030902 PL - United States TA - Mol Vis JT - Molecular vision JID - 9605351 RN - 0 (Histocompatibility Antigens Class I) RN - 0 (MHC class I-related chain A) RN - 0 (Membrane Proteins) RN - OF5P57N2ZX (Alanine) SB - IM MH - Adult MH - Alanine/*genetics MH - Eye Infections, Fungal/*genetics/microbiology MH - Female MH - Histocompatibility Antigens Class I/*genetics MH - Histoplasma/*isolation & purification MH - Histoplasmosis/*genetics/microbiology MH - Humans MH - Male MH - Membrane Proteins/genetics MH - Microsatellite Repeats/*genetics MH - Polymerase Chain Reaction MH - Polymorphism, Genetic MH - Retinal Diseases/*genetics/microbiology MH - Syndrome EDAT- 2003/09/10 05:00 MHDA- 2003/10/31 05:00 CRDT- 2003/09/10 05:00 PHST- 2003/09/10 05:00 [pubmed] PHST- 2003/10/31 05:00 [medline] PHST- 2003/09/10 05:00 [entrez] AID - v9/a54 [pii] PST - epublish SO - Mol Vis. 2003 Sep 2;9:420-4.