Genetic polymorphisms of tumour necrosis factor alpha (TNF-α) promoter gene and response to TNF-α inhibitors in Spanish patients with inflammatory bowel disease.
Int J Immunogenet
; 41(1): 63-8, 2014 Feb.
Article
en En
| MEDLINE
| ID: mdl-23590430
Tumour necrosis factor alpha (TNF-α) has an important role in inflammatory response. Alterations in the regulation of TNF-α have been implicated in a variety of inflammatory disorders, including Inflammatory bowel disease (IBD). Indeed, a common treatment for IBD is the use of TNF-α inhibitors. Polymorphisms in the TNF-α promoter region are known to affect the level of gene expression. Our aim was to investigate the influence of these single nucleotide polymorphisms (SNPs) in TNF-α promoter gene play in the risk of IBD in a Spanish population and their individual response to anti-TNF-α treatment. DNA samples from patients with IBD and controls were screened for TNF-α -238G/A (rs361525) and -308G/A (rs1800629) SNPs by PCR-SSOP using a microbeads luminex assay and compared with response to TNF-α inhibitors. There were not statistical differences in -238G/A and -308G/A allele and genotype frequencies between patients. However, we found an increased frequency of -308A allele and -308GA genotype in these nonresponders patients to TNF-α inhibitors with respect to responders patients (Pc < 0.05). This -308GA genotype has been classified as high producer of this cytokine. This fact could actually be interesting to explain the different response of patients with IBD with respect to TNF-α inhibitors. TNF-α promoter gene polymorphism does not seem to play a role in IBD susceptibility, but particular TNF-α genotypes may be involved in the different responses to TNF-α inhibitor treatment in Spanish patients with IBD.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Polimorfismo Genético
/
Enfermedades Inflamatorias del Intestino
/
Regiones Promotoras Genéticas
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Factor de Necrosis Tumoral alfa
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Población Blanca
Tipo de estudio:
Diagnostic_studies
Límite:
Adolescent
/
Adult
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Child
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Female
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Humans
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Male
/
Middle aged
País/Región como asunto:
Europa
Idioma:
En
Revista:
Int J Immunogenet
Asunto de la revista:
ALERGIA E IMUNOLOGIA
/
GENETICA
Año:
2014
Tipo del documento:
Article
País de afiliación:
España
Pais de publicación:
Reino Unido