RT Journal Article
T1 Candidate gene study of TRAIL and TRAIL receptors: association with response to interferon beta therapy in multiple sclerosis patients.
A1 López-Gómez, Carlos
A1 Pino-Ángeles, Almudena
A1 Órpez-Zafra, Teresa
A1 Pinto-Medel, María Jesús
A1 Oliver-Martos, Begoña
A1 Ortega-Pinazo, Jesús
A1 Arnáiz, Carlos
A1 Guijarro-Castro, Cristina
A1 Varadé, Jezabel
A1 Álvarez-Lafuente, Roberto
A1 Urcelay, Elena
A1 Sánchez-Jiménez, Francisca
A1 Fernández, Óscar
A1 Leyva, Laura
K1 Esclerosis múltiple
K1 España
K1 Genotipo
K1 Ácido glutámico
K1 Alanina
K1 Edad de Inicio
AB TRAIL and TRAIL Receptor genes have been implicated in Multiple Sclerosis pathology as well as in the response to IFN beta therapy. The objective of our study was to evaluate the association of these genes in relation to the age at disease onset (AAO) and to the clinical response upon IFN beta treatment in Spanish MS patients. We carried out a candidate gene study of TRAIL, TRAILR-1, TRAILR-2, TRAILR-3 and TRAILR-4 genes. A total of 54 SNPs were analysed in 509 MS patients under IFN beta treatment, and an additional cohort of 226 MS patients was used to validate the results. Associations of rs1047275 in TRAILR-2 and rs7011559 in TRAILR-4 genes with AAO under an additive model did not withstand Bonferroni correction. In contrast, patients with the TRAILR-1 rs20576-CC genotype showed a better clinical response to IFN beta therapy compared with patients carrying the A-allele (recessive model: p = 8.88×10(-4), pc = 0.048, OR = 0.30). This SNP resulted in a non synonymous substitution of Glutamic acid to Alanine in position 228 (E228A), a change previously associated with susceptibility to different cancer types and risk of metastases, suggesting a lack of functionality of TRAILR-1. In order to unravel how this amino acid change in TRAILR-1 would affect to death signal, we performed a molecular modelling with both alleles. Neither TRAIL binding sites in the receptor nor the expression levels of TRAILR-1 in peripheral blood mononuclear cell subsets (monocytes, CD4+ and CD8+ T cells) were modified, suggesting that this SNP may be altering the death signal by some other mechanism. These findings show a role for TRAILR-1 gene variations in the clinical outcome of IFN beta therapy that might have relevance as a biomarker to predict the response to IFN beta in MS.
PB Public Library of Science
YR 2013
FD 2013-04-29
LK http://hdl.handle.net/10668/1330
UL http://hdl.handle.net/10668/1330
LA en
NO López-Gómez C, Pino-Ángeles A, Órpez-Zafra T, Pinto-Medel MJ, Oliver-Martos B, Ortega-Pinazo J, et al. Candidate gene study of TRAIL and TRAIL receptors: association with response to interferon beta therapy in multiple sclerosis patients. PLoS ONE. 2013; 8(4):e62540
NO Journal Article; Research Support, Non-U.S. Gov't;
DS RISalud
RD Mar 14, 2025