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Vella A, Cooper JD, Lowe CE, Walker N, Nutland S, Widmer B, Jones R, Ring SM, McArdle W, Pembrey ME, Strachan DP, Dunger DB, Twells RCJ, Clayton DG, Todd JA. Localization of a type 1 diabetes locus in the IL2RA/CD25 region by use of tag single-nucleotide polymorphisms. Am J Hum Genet 2005; 76:773-9. [PMID: 15776395 PMCID: PMC1199367 DOI: 10.1086/429843] [Citation(s) in RCA: 254] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2004] [Accepted: 02/21/2005] [Indexed: 01/07/2023] Open
Abstract
As part of an ongoing search for genes associated with type 1 diabetes (T1D), a common autoimmune disease, we tested the biological candidate gene IL2RA (CD25), which encodes a subunit (IL-2R alpha) of the high-affinity interleukin-2 (IL-2) receptor complex. We employed a tag single-nucleotide polymorphism (tag SNP) approach in large T1D sample collections consisting of 7,457 cases and controls and 725 multiplex families. Tag SNPs were analyzed using a multilocus test to provide a regional test for association. We found strong statistical evidence in the case-control collection (P=6.5x10(-8)) for a T1D locus in the CD25 region of chromosome 10p15 and replicated the association in the family collection (P=7.3x10(-3); combined P=1.3x10(-10)). These results illustrate the utility of tag SNPs in a chromosome-regional test of disease association and justify future fine mapping of the causal variant in the region.
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Affiliation(s)
- Adrian Vella
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Jason D. Cooper
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Christopher E. Lowe
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Neil Walker
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Sarah Nutland
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Barry Widmer
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Richard Jones
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Susan M. Ring
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Wendy McArdle
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Marcus E. Pembrey
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - David P. Strachan
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - David B. Dunger
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - Rebecca C. J. Twells
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - David G. Clayton
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
| | - John A. Todd
- Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, and Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom; Department of Community-Based Medicine, Bristol University, Bristol, United Kingdom; and Clinical and Molecular Genetics Unit, Institute of Child Health, University College London, and Department of Community Health Sciences, St. George’s Hospital Medical School, London
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