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The CTLA4 region as a general autoimmunity factor: an extended pedigree provides evidence for synergy with the HLA locus in the etiology of type 1 diabetes mellitus, Hashimoto's thyroiditis and Graves' disease.
Eur J Hum Genet. 2003 Jan; 11(1):81-4.EJ

Abstract

We have identified a large family in the northern part of Sweden with multiple cases of autoimmune diseases, namely type 1 diabetes (T1D), Graves' disease (GD) and Hashimoto's thyroiditis (HT). The family members affected by any of these diseases share a region of 2.4 Mb that comprises among others the CTLA4 gene. We determined that all affected members of the family shared the HLA susceptibility haplotype (DR4-DQA1*0301-DQB1*0302). Analysis of genetic interaction conditioning for HLA haplotype provided strong evidence that the critical region which includes the CTLA4 gene acts together with the HLA locus on the etiology of disease (lodscore 4.20 (theta=0.0). The study of this family allowed us to: (1) reinforce a number of reports on linkage and association of the CTLA4 region to T1D and AITD; (2) demonstrate that a single haplotypic variant in this region constitutes an etiological factor to disease susceptibility in T1D, GD and HT; (3) reveal a strong genetic interaction of the CTLA4 and HLA loci in the genetic architecture of autoimmune disease; (4) emphasise the value of large pedigrees drawn from isolated populations as tools to single out the effect of individual loci in the etiology of complex diseases.

Authors+Show Affiliations

Umeå Centre for Molecular Medicine, Umeå University, Sweden.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)

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

Language

eng

PubMed ID

12529710

Citation

Einarsdottir, Elisabet, et al. "The CTLA4 Region as a General Autoimmunity Factor: an Extended Pedigree Provides Evidence for Synergy With the HLA Locus in the Etiology of Type 1 Diabetes Mellitus, Hashimoto's Thyroiditis and Graves' Disease." European Journal of Human Genetics : EJHG, vol. 11, no. 1, 2003, pp. 81-4.
Einarsdottir E, Söderström I, Löfgren-Burström A, et al. The CTLA4 region as a general autoimmunity factor: an extended pedigree provides evidence for synergy with the HLA locus in the etiology of type 1 diabetes mellitus, Hashimoto's thyroiditis and Graves' disease. Eur J Hum Genet. 2003;11(1):81-4.
Einarsdottir, E., Söderström, I., Löfgren-Burström, A., Haraldsson, S., Nilsson-Ardnor, S., Penha-Goncalves, C., Lind, L., Holmgren, G., Holmberg, M., Asplund, K., & Holmberg, D. (2003). The CTLA4 region as a general autoimmunity factor: an extended pedigree provides evidence for synergy with the HLA locus in the etiology of type 1 diabetes mellitus, Hashimoto's thyroiditis and Graves' disease. European Journal of Human Genetics : EJHG, 11(1), 81-4.
Einarsdottir E, et al. The CTLA4 Region as a General Autoimmunity Factor: an Extended Pedigree Provides Evidence for Synergy With the HLA Locus in the Etiology of Type 1 Diabetes Mellitus, Hashimoto's Thyroiditis and Graves' Disease. Eur J Hum Genet. 2003;11(1):81-4. PubMed PMID: 12529710.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The CTLA4 region as a general autoimmunity factor: an extended pedigree provides evidence for synergy with the HLA locus in the etiology of type 1 diabetes mellitus, Hashimoto's thyroiditis and Graves' disease. AU - Einarsdottir,Elisabet, AU - Söderström,Ingegerd, AU - Löfgren-Burström,Anna, AU - Haraldsson,Susann, AU - Nilsson-Ardnor,Sofie, AU - Penha-Goncalves,Carlos, AU - Lind,Lisbet, AU - Holmgren,Gösta, AU - Holmberg,Monica, AU - Asplund,Kjell, AU - Holmberg,Dan, PY - 2002/04/02/received PY - 2002/08/01/revised PY - 2002/08/26/accepted PY - 2003/1/17/pubmed PY - 2003/8/27/medline PY - 2003/1/17/entrez SP - 81 EP - 4 JF - European journal of human genetics : EJHG JO - Eur. J. Hum. Genet. VL - 11 IS - 1 N2 - We have identified a large family in the northern part of Sweden with multiple cases of autoimmune diseases, namely type 1 diabetes (T1D), Graves' disease (GD) and Hashimoto's thyroiditis (HT). The family members affected by any of these diseases share a region of 2.4 Mb that comprises among others the CTLA4 gene. We determined that all affected members of the family shared the HLA susceptibility haplotype (DR4-DQA1*0301-DQB1*0302). Analysis of genetic interaction conditioning for HLA haplotype provided strong evidence that the critical region which includes the CTLA4 gene acts together with the HLA locus on the etiology of disease (lodscore 4.20 (theta=0.0). The study of this family allowed us to: (1) reinforce a number of reports on linkage and association of the CTLA4 region to T1D and AITD; (2) demonstrate that a single haplotypic variant in this region constitutes an etiological factor to disease susceptibility in T1D, GD and HT; (3) reveal a strong genetic interaction of the CTLA4 and HLA loci in the genetic architecture of autoimmune disease; (4) emphasise the value of large pedigrees drawn from isolated populations as tools to single out the effect of individual loci in the etiology of complex diseases. SN - 1018-4813 UR - https://www.unboundmedicine.com/medline/citation/12529710/The_CTLA4_region_as_a_general_autoimmunity_factor:_an_extended_pedigree_provides_evidence_for_synergy_with_the_HLA_locus_in_the_etiology_of_type_1_diabetes_mellitus_Hashimoto's_thyroiditis_and_Graves'_disease_ L2 - http://dx.doi.org/10.1038/sj.ejhg.5200903 DB - PRIME DP - Unbound Medicine ER -