A C/T single-nucleotide polymorphism in the region of the CD40 gene is associated with Graves' disease

Yaron Tomer, Erlinda Concepcion, David A. Greenberg

Research output: Contribution to journalArticle

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Abstract

Graves' disease (GD) develops as a result of an interaction between susceptibility genes and environmental factors. We have previously mapped a susceptibility locus for GD on chromosome 20q11 (GD-2), which has recently been independently replicated. Among the genes mapped to 20q11 was the CD40 gene, an important costimulatory molecule and a good positional candidate gene for GD. We investigated whether the CD40 gene was the GD susceptibility gene on 20q11. Linkage analysis in a subset of Caucasian families showed a maximum multipoint logarithm of odds (LOD) score of 3.3 at the CD40 locus. We then sequenced all 9 exons of the CD40 gene in 8 probands and 10 controls and identified a new C/T single-nucleotide polymorphism (SNP) in the Kozak sequence of the CD40 gene at position -1. Case control association analysis of the CD40 C/T-1 SNP in 154 Caucasian patients with GD and 118 Caucasian controls showed an association between the CC genotype and GD (p = 0.048, relative risk [RR] = 1.6). Furthermore, the association was stronger when only the probands from the linked families (n = 20) were used (p = 0.009, RR = 4.8). Transmission disequilibrium test (TDT) analysis also showed preferential transmission of the C allele of the CD40 C/T-1 SNP to affected individuals (p = 0.02). In conclusion, our results suggested that the CD40 gene was a new susceptibility gene for GD within certain families because it was both linked and associated with GD.

Original languageEnglish (US)
Pages (from-to)1129-1135
Number of pages7
JournalThyroid
Volume12
Issue number12
StatePublished - Dec 1 2002
Externally publishedYes

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Graves Disease
Single Nucleotide Polymorphism
Genes
Gene Order
Disease Susceptibility
Exons
Chromosomes
Alleles
Genotype

ASJC Scopus subject areas

  • Endocrinology

Cite this

A C/T single-nucleotide polymorphism in the region of the CD40 gene is associated with Graves' disease. / Tomer, Yaron; Concepcion, Erlinda; Greenberg, David A.

In: Thyroid, Vol. 12, No. 12, 01.12.2002, p. 1129-1135.

Research output: Contribution to journalArticle

Tomer, Yaron ; Concepcion, Erlinda ; Greenberg, David A. / A C/T single-nucleotide polymorphism in the region of the CD40 gene is associated with Graves' disease. In: Thyroid. 2002 ; Vol. 12, No. 12. pp. 1129-1135.
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