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Human leukocyte antigen haplotypes and HFE mutations in Spanish hereditary hemochromatosis and sporadic porphyria cutanea tarda.
J Gastroenterol Hepatol. 2005 Mar; 20(3):456-62.JG

Abstract

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.

Authors+Show Affiliations

Department of Immunology, Hospital 12 de Octubre, Universidad Complutense, Madrid, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15740492

Citation

Gonzalez-Hevilla, Mario, et al. "Human Leukocyte Antigen Haplotypes and HFE Mutations in Spanish Hereditary Hemochromatosis and Sporadic Porphyria Cutanea Tarda." Journal of Gastroenterology and Hepatology, vol. 20, no. 3, 2005, pp. 456-62.
Gonzalez-Hevilla M, de Salamanca RE, Morales P, et al. Human leukocyte antigen haplotypes and HFE mutations in Spanish hereditary hemochromatosis and sporadic porphyria cutanea tarda. J Gastroenterol Hepatol. 2005;20(3):456-62.
Gonzalez-Hevilla, M., de Salamanca, R. E., Morales, P., Martínez-Laso, J., Fontanellas, A., Castro, M. J., Rojo, R., Moscoso, J., Zamora, J., Serrano-Vela, J. I., & Arnaiz-Villena, A. (2005). Human leukocyte antigen haplotypes and HFE mutations in Spanish hereditary hemochromatosis and sporadic porphyria cutanea tarda. Journal of Gastroenterology and Hepatology, 20(3), 456-62.
Gonzalez-Hevilla M, et al. Human Leukocyte Antigen Haplotypes and HFE Mutations in Spanish Hereditary Hemochromatosis and Sporadic Porphyria Cutanea Tarda. J Gastroenterol Hepatol. 2005;20(3):456-62. PubMed PMID: 15740492.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Human leukocyte antigen haplotypes and HFE mutations in Spanish hereditary hemochromatosis and sporadic porphyria cutanea tarda. AU - Gonzalez-Hevilla,Mario, AU - de Salamanca,Rafael E, AU - Morales,Pablo, AU - Martínez-Laso,Jorge, AU - Fontanellas,Antonio, AU - Castro,Maria José, AU - Rojo,Ricardo, AU - Moscoso,Juan, AU - Zamora,Jorge, AU - Serrano-Vela,Juan Ignacio, AU - Arnaiz-Villena,Antonio, PY - 2005/3/3/pubmed PY - 2005/7/1/medline PY - 2005/3/3/entrez SP - 456 EP - 62 JF - Journal of gastroenterology and hepatology JO - J. Gastroenterol. Hepatol. VL - 20 IS - 3 N2 - 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. SN - 0815-9319 UR - https://www.unboundmedicine.com/medline/citation/15740492/Human_leukocyte_antigen_haplotypes_and_HFE_mutations_in_Spanish_hereditary_hemochromatosis_and_sporadic_porphyria_cutanea_tarda_ L2 - https://doi.org/10.1111/j.1440-1746.2005.03553.x DB - PRIME DP - Unbound Medicine ER -