RGD Reference Report - TNF and TNF receptor polymorphisms in Korean Behcet's disease patients. - Rat Genome Database

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TNF and TNF receptor polymorphisms in Korean Behcet's disease patients.

Authors: Lee, Eun Bong  Kim, Jeong Yeon  Lee, Yun Jong  Park, Myoung Hee  Song, Yeong Wook 
Citation: Lee EB, etal., Hum Immunol. 2003 Jun;64(6):614-20.
RGD ID: 12904048
Pubmed: PMID:12770792   (View Abstract at PubMed)

Behcet's disease (BD) is an autoimmune disease characterized by recurrent oral ulcers, genital ulcers, erythema nodosum, and uveitis. Genetic factors are considered important in its pathogenesis. The serum level of tumor necrosis factor (TNF) is elevated in patients with active BD, and its production is elevated in monocytes and in the gamma delta T cells of BD patients. A dramatic response to anti-TNF-alpha antibody treatment further supports the role of TNF in BD. In this study, we investigated genetic polymorphisms of TNF alpha -308 G/A, TNF beta +252 G/A, and TNFR2 196 R/M in 94 Korean BD patients and age- and sex-matched healthy controls to investigate the role of TNF and TNF receptor polymorphisms in BD. The polymerase chain reaction-restriction fragment length polymorphism was used to identify the TNF-alpha promoter (G = TNFA1, A = TNFA2) and TNF-beta intron polymorphisms (G = TNFB1, A = TNFB2), and polymerase chain reaction-singly-strand conformation polymorphism was used to identify TNFR2 196R/M polymorphism (T = TNFR2M, G = TNFR2R). No differences were found in the TNF-alpha, TNF-beta or TNFR2 polymorphisms of the patients and the healthy controls. The allele frequencies of TNFA1/A2 were 0.94/0.06 in patients and 0.96/0.04 in healthy controls (p = 0.36, OR = 0.65, 95% CI = 0.26-1.63), for TNFB1/TNFB2 these were 0.42/0.58 in patients and 0.44/0.56 in controls (p = 0.68, OR = 0.91, 95% CI = 0.61-1.38), and for TNFR2R/TNFR2M 0.23/0.77 in patients and 0.21/0.79 in controls (p = 0.62, OR = 1.13, 95% CI = 0.69-1.84). In conclusion, this study found no differences of TNF alpha -308 G/A, TNF beta +252 G/A or of the TNFR2 196R/M polymorphisms in Korean BD patients versus healthy controls. These findings suggest that the role of TNF in BD is not genetically determined, but can be functionally explained.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Behcet's disease no_associationIAGP 12904048DNA:SNP:promoter:-308G>A (human)RGD 
Behcet's disease no_associationISOTNF (Homo sapiens)12904048; 12904048DNA:SNP:promoter:-308G>A (human)RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tnf  (tumor necrosis factor)

Genes (Mus musculus)
Tnf  (tumor necrosis factor)

Genes (Homo sapiens)
TNF  (tumor necrosis factor)

Additional Information