151
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Affiliation(s)
- Helen E Thomas
- St Vincent's Institute, Fitzroy, Victoria, Australia Department of Medicine, St Vincent's Hospital, The University of Melbourne, Fitzroy, Victoria, Australia
| | - Thomas C Brodnicki
- St Vincent's Institute, Fitzroy, Victoria, Australia Department of Medicine, St Vincent's Hospital, The University of Melbourne, Fitzroy, Victoria, Australia
| | - Thomas W H Kay
- St Vincent's Institute, Fitzroy, Victoria, Australia Department of Medicine, St Vincent's Hospital, The University of Melbourne, Fitzroy, Victoria, Australia
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153
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Critical Link Between Epigenetics and Transcription Factors in the Induction of Autoimmunity: a Comprehensive Review. Clin Rev Allergy Immunol 2016; 50:333-44. [DOI: 10.1007/s12016-016-8534-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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154
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Kahaly GJ, Hansen MP. Type 1 diabetes associated autoimmunity. Autoimmun Rev 2016; 15:644-8. [PMID: 26903475 DOI: 10.1016/j.autrev.2016.02.017] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Accepted: 02/15/2016] [Indexed: 01/06/2023]
Abstract
Diabetes mellitus is increasing in prevalence worldwide. The economic costs are considerable given the cardiovascular complications and co-morbidities that it may entail. Type 1 diabetes (T1D) is a chronic autoimmune disease characterized by the loss of insulin-producing pancreatic β-cells. The pathogenesis of T1D is complex and multifactorial and involves a genetic susceptibility that predisposes to abnormal immune responses in the presence of ill-defined environmental insults to the pancreatic islets. Genetic background may affect the risk for autoimmune disease and patients with T1D exhibit an increased risk of other autoimmune disorders such as autoimmune thyroid disease, Addison's disease, autoimmune gastritis, coeliac disease and vitiligo. Approximately 20%-25% of patients with T1D have thyroid antibodies, and up to 50% of such patients progress to clinical autoimmune thyroid disease. Approximately 0.5% of diabetic patients have concomitant Addison's disease and 4% have coeliac disease. The prevalence of autoimmune gastritis and pernicious anemia is 5% to 10% and 2.6% to 4%, respectively. Early detection of antibodies and latent organ-specific dysfunction is advocated to alert physicians to take appropriate action in order to prevent full-blown disease. Patients and family members should be educated to be able to recognize signs and symptoms of underlying disease.
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Affiliation(s)
- George J Kahaly
- Department of Medicine I, Johannes Gutenberg University Medical Center, Mainz, Germany.
| | - Martin P Hansen
- Department of Medicine I, Johannes Gutenberg University Medical Center, Mainz, Germany
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155
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Traherne JA, Jiang W, Valdes AM, Hollenbach JA, Jayaraman J, Lane JA, Johnson C, Trowsdale J, Noble JA. KIR haplotypes are associated with late-onset type 1 diabetes in European-American families. Genes Immun 2015; 17:8-12. [PMID: 26492518 PMCID: PMC4746488 DOI: 10.1038/gene.2015.44] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 09/14/2015] [Accepted: 09/15/2015] [Indexed: 01/30/2023]
Abstract
Classical human leukocyte antigens (HLA) genes confer the strongest, but not the only, genetic susceptibility to type 1 diabetes. Killer cell immunoglobulin-like receptors (KIR), on natural killer (NK) cells, bind ligands including class I HLA. We examined presence or absence, with copy number, of KIR loci in 1698 individuals, from 339 multiplex type 1 diabetes families, from the Human Biological Data Interchange, previously genotyped for HLA. Combining family data with KIR copy number information allowed assignment of haplotypes using identity by descent. This is the first disease study to use KIR copy number typing and unambiguously define haplotypes by gene transmission. KIR A1 haplotypes were positively associated with T1D in the subset of patients without the high T1D risk HLA genotype, DR3/DR4 (odds ratio=1.29, P=0.0096). The data point to a role for KIR in type 1 diabetes risk in late-onset patients. In the top quartile (age of onset>14), KIR A2 haplotype was overtransmitted (63.4%, odds ratio=1.73, P=0.024) and KIR B haplotypes were undertransmitted (41.1%, odds ratio=0.70, P=0.0052) to patients. The data suggest that inhibitory ‘A' haplotypes are predisposing and stimulatory ‘B' haplotypes confer protection in both DR3/DR4-negative and late-onset patient groups.
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Affiliation(s)
- J A Traherne
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, UK.,Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - W Jiang
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - A M Valdes
- Academic Rheumatology, University of Nottingham, City Hospital, Nottingham, UK
| | - J A Hollenbach
- Department of Neurology, University of California San Francisco School of Medicine, San Francisco, CA, USA
| | - J Jayaraman
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - J A Lane
- Children's Hospital Oakland Research Institute, Oakland, California, USA
| | - C Johnson
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - J Trowsdale
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, UK.,Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - J A Noble
- Children's Hospital Oakland Research Institute, Oakland, California, USA
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