Identification of novel genetic Loci associated with thyroid peroxidase antibodies and clinical thyroid disease

Medici, M. and Porcu, E. and Pistis, G. and Teumer, A. and Brown, S. J. and Jensen, R. A. and Rawal, R. and Roef, G. L. and Plantinga, T. S. and Vermeulen, S. H. and Lahti, J. and Simmonds, M. J. and Husemoen, L. L. and Freathy, R. M. and Shields, B. M. and Pietzner, D. and Nagy, R. and Broer, L. and Chaker, L. and Korevaar, T. I. and Plia, M. G. and Sala, C. and Völker, U. and Richards, J. B. and Sweep, F. C. and Gieger, C. and Corre, T. and Kajantie, E. and Thuesen, B. and Taes, Y. E. and Visser, W. E. and Hattersley, A. T. and Kratzsch, J. and Hamilton, A. and Li, W. and Homuth, G. and Lobina, M. and Mariotti, S. and Soranzo, N. and Cocca, M. and Nauck, M. and Spielhagen, C. and Ross, A. and Arnold, A. and van de Bunt, M. and Liyanarachchi, S. and Heier, M. and Grabe, H. J. and Masciullo, C. and Galesloot, T. E. and Lim, E. M. and Reischl, E. and Leedman, P. J. and Lai, S. and Delitala, A. and Bremner, A. P. and Philips, D. I. and Beilby, J. P. and Mulas, A. and Vocale, M. and Abecasis, G. and Forsen, T. and James, A. and Widen, E. and Hui, J. and Prokisch, H. and Rietzschel, E. E. and Palotie, A. and Feddema, P. and Fletcher, S. J. and Schramm, K. and Rotter, J. I. and Kluttig, A. and Radke, D. and Traglia, M. and Surdulescu, G. L. and He, H. and Franklyn, J. A. and Tiller, D. and Vaidya, B. and de Meyer, T. and Jørgensen, T. and Eriksson, J. G. and O'Leary, P. C. and Wichmann, E. and Hermus, A. R. and Psaty, B. M. and Ittermann, T. and Hofman, A. and Bosi, E. and Schlessinger, D. and Wallaschofski, H. and Pirastu, N. and Aulchenko, Y. S. and de la Chapelle, A. and Netea-Maier, R. T. and Gough, S. C. and Meyer zu Schwabedissen, H. E. U. and Frayling, T. M. and Kaufman, J. M. and Linneberg, A. and Räikkönen, K. and Smit, J. W. and Kiemeney, L. A. and Rivadeneira, F. and Uitterlinden, A. G. and Walsh, J. P. and Meisinger, C. and den Heijer, M. and Visser, T. J. and Spector, T. D. and Wilson, S. G. and Völzke, H. and Cappola, A. and Toniolo, D. and Sanna, S. and Naitza, S. and Peeters, R. P.. (2014) Identification of novel genetic Loci associated with thyroid peroxidase antibodies and clinical thyroid disease. PLoS genetics, Vol. 10, H. 2. pp. 1-13.

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Official URL: http://edoc.unibas.ch/dok/A6308344

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Abstract

Autoimmune thyroid diseases (AITD) are common, affecting 2-5% of the general population. Individuals with positive thyroid peroxidase antibodies (TPOAbs) have an increased risk of autoimmune hypothyroidism (Hashimoto's thyroiditis), as well as autoimmune hyperthyroidism (Graves' disease). As the possible causative genes of TPOAbs and AITD remain largely unknown, we performed GWAS meta-analyses in 18,297 individuals for TPOAb-positivity (1769 TPOAb-positives and 16,528 TPOAb-negatives) and in 12,353 individuals for TPOAb serum levels, with replication in 8,990 individuals. Significant associations (P>5×10(-8)) were detected at TPO-rs11675434, ATXN2-rs653178, and BACH2-rs10944479 for TPOAb-positivity, and at TPO-rs11675434, MAGI3-rs1230666, and KALRN-rs2010099 for TPOAb levels. Individual and combined effects (genetic risk scores) of these variants on (subclinical) hypo- and hyperthyroidism, goiter and thyroid cancer were studied. Individuals with a high genetic risk score had, besides an increased risk of TPOAb-positivity (OR: 2.18, 95% CI 1.68-2.81, P = 8.1×10(-8)), a higher risk of increased thyroid-stimulating hormone levels (OR: 1.51, 95% CI 1.26-1.82, P = 2.9×10(-6)), as well as a decreased risk of goiter (OR: 0.77, 95% CI 0.66-0.89, P = 6.5×10(-4)). The MAGI3 and BACH2 variants were associated with an increased risk of hyperthyroidism, which was replicated in an independent cohort of patients with Graves' disease (OR: 1.37, 95% CI 1.22-1.54, P = 1.2×10(-7) and OR: 1.25, 95% CI 1.12-1.39, P = 6.2×10(-5)). The MAGI3 variant was also associated with an increased risk of hypothyroidism (OR: 1.57, 95% CI 1.18-2.10, P = 1.9×10(-3)). This first GWAS meta-analysis for TPOAbs identified five newly associated loci, three of which were also associated with clinical thyroid disease. With these markers we identified a large subgroup in the general population with a substantially increased risk of TPOAbs. The results provide insight into why individuals with thyroid autoimmunity do or do not eventually develop thyroid disease, and these markers may therefore predict which TPOAb-positives are particularly at risk of developing clinical thyroid dysfunction.

Faculties and Departments:	05 Faculty of Science > Departement Pharmazeutische Wissenschaften > Pharmazie > Biopharmacy (Meyer zu Schwabedissen)
UniBasel Contributors:	Meyer zu Schwabedissen, H.
Item Type:	Article, refereed
Article Subtype:	Research Article
Publisher:	Public Library of Science
ISSN:	1553-7390
Note:	Publication type according to Uni Basel Research Database: Journal article
Identification Number:	doi: 10.1371/journal.pgen.1004123
Last Modified:	05 Dec 2014 09:45
Deposited On:	05 Dec 2014 09:45

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