PMID- 15740492 OWN - NLM STAT- MEDLINE DCOM- 20050630 LR - 20161124 IS - 0815-9319 (Print) IS - 0815-9319 (Linking) VI - 20 IP - 3 DP - 2005 Mar TI - Human leukocyte antigen haplotypes and HFE mutations in Spanish hereditary hemochromatosis and sporadic porphyria cutanea tarda. PG - 456-62 AB - BACKGROUND AND AIMS: It has been postulated that the HFE C282Y mutation (linked to human leukocyte antigen [HLA]-A3-B7 haplotype) is not only responsible for hereditary hemochromatosis; HLA class I alleles would also contribute to the disease pathogenesis. In addition, H63D mutation linked to HLA-A29-B44 would also be pathogenetic, particularly in the Mediterranean Basin and throughout the world. However, sporadic porphyria cutanea tarda (s-PCT) has also been linked to these HFE mutations. In the present work, we have studied HFE mutations and HLA genes to test these hypotheses. METHODS: C282Y and H63D mutations together with HLA genetic typing have been performed in Spanish hereditary hemochromatosis (n = 98) and PCT (n = 63) patients. The etiologic fraction (delta) has been used to determine the absolute strongest gene linkage to both diseases. RESULTS: The Spanish frequent HLA-A29-B44 haplotype is not significantly associated to the H63D mutations in hereditary hemochromatosis patients (although it is found more frequently in patients than in controls). Sporadic porphyria cutanea tarda patients do not show a significant association to H63D mutations, although it is also more frequent than in controls; however, compound H63D/C282Y subjects seem to bear a significant risk to s-PCT. Allelic C282Y (and not H63D) frequencies show a significant association with s-PCT. CONCLUSIONS: The postulated additional risk of hereditary hemochromatosis given by class I HLA antigens may be secondary to the HFE gene linkage disequilibrium with certain class I alleles or to the existence of other neighboring genetic pathogenetic factors in our Spanish sample. FAU - Gonzalez-Hevilla, Mario AU - Gonzalez-Hevilla M AD - Department of Immunology, Hospital 12 de Octubre, Universidad Complutense, Madrid, Spain. FAU - de Salamanca, Rafael E AU - de Salamanca RE FAU - Morales, Pablo AU - Morales P FAU - Martinez-Laso, Jorge AU - Martinez-Laso J FAU - Fontanellas, Antonio AU - Fontanellas A FAU - Castro, Maria Jose AU - Castro MJ FAU - Rojo, Ricardo AU - Rojo R FAU - Moscoso, Juan AU - Moscoso J FAU - Zamora, Jorge AU - Zamora J FAU - Serrano-Vela, Juan Ignacio AU - Serrano-Vela JI FAU - Arnaiz-Villena, Antonio AU - Arnaiz-Villena A LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Australia TA - J Gastroenterol Hepatol JT - Journal of gastroenterology and hepatology JID - 8607909 RN - 0 (Antibodies, Monoclonal) RN - 0 (Genetic Markers) RN - 0 (HFE protein, human) RN - 0 (HLA Antigens) RN - 0 (Hemochromatosis Protein) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Membrane Proteins) RN - 9007-49-2 (DNA) SB - IM MH - Alleles MH - Antibodies, Monoclonal MH - DNA/genetics MH - Gene Frequency/genetics MH - Genetic Markers MH - HLA Antigens/*genetics/immunology MH - Haplotypes/*genetics MH - Hemochromatosis Protein MH - Hemosiderosis/blood/ethnology/*genetics MH - Histocompatibility Antigens Class I/*genetics/immunology MH - Humans MH - Membrane Proteins/*genetics/immunology MH - *Mutation/genetics MH - Polymerase Chain Reaction MH - Polymorphism, Restriction Fragment Length MH - Porphyria Cutanea Tarda/blood/ethnology/*genetics MH - Prevalence MH - Spain/epidemiology EDAT- 2005/03/03 09:00 MHDA- 2005/07/01 09:00 CRDT- 2005/03/03 09:00 PHST- 2005/03/03 09:00 [pubmed] PHST- 2005/07/01 09:00 [medline] PHST- 2005/03/03 09:00 [entrez] AID - JGH3553 [pii] AID - 10.1111/j.1440-1746.2005.03553.x [doi] PST - ppublish SO - J Gastroenterol Hepatol. 2005 Mar;20(3):456-62. doi: 10.1111/j.1440-1746.2005.03553.x.