title: Gene expression analysis of interferon-beta treatment in multiple sclerosis.
abstract: Treatment with interferon-beta (IFN-beta) induces the expression of hundreds of genes in blood mononuclear cells, and the expression of several genes has been proposed as a marker of the effect of treatment with IFN-beta. However, to date no molecules have been identified that are stably induced by treatment with IFN-beta. We use DNA microarrays to study gene expression in 10 multiple sclerosis (MS) patients who began de novo treatment with IFN-beta. After the first injection of IFN-beta, the expression of 74 out of 3428 genes changed at least two-fold and statistically significantly (after Bonferroni correction). In contrast, we observed no persisting effects of IFN-beta on gene expression. Among the most strongly induced genes was MXA, which has been used in previous biomarker studies in MS. In addition, the study identified the induction of LGALS9 and TCIR1G, involved in negative regulation of T helper type I immunity and T-cell activation, as novel effects of IFN-beta therapy in MS.
authors.affiliation: Department of Neurology, Danish Multiple Sclerosis Research Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark. sellebjerg@dadlnet.dk
authors.forename: F
authors.initials: F
authors.lastname: Sellebjerg
authors.forename: P
authors.initials: P
authors.lastname: Datta
authors.forename: J
authors.initials: J
authors.lastname: Larsen
authors.forename: K
authors.initials: K
authors.lastname: Rieneck
authors.forename: I
authors.initials: I
authors.lastname: Alsing
authors.forename: A
authors.initials: A
authors.lastname: Oturai
authors.forename: A
authors.initials: A
authors.lastname: Svejgaard
authors.forename: P
authors.initials: P
authors.lastname: Soelberg Sørensen
authors.forename: L P
authors.initials: LP
authors.lastname: Ryder
mesh_terms: D000328:Adult; D004185:Disability Evaluation; D015536:Down-Regulation / Q000187:drug effects / Q000276:immunology; D005260:Female; D015870:Gene Expression / Q000187:drug effects / Q000276:immunology; D020869:Gene Expression Profiling; D006801:Humans; D007155:Immunologic Factors / Q000627:therapeutic use*; D016899:Interferon-beta / Q000627:therapeutic use*; D007963:Leukocytes, Mononuclear / Q000187:drug effects / Q000502:physiology; D008297:Male; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000188:drug therapy* / Q000235:genetics*; D020411:Oligonucleotide Array Sequence Analysis; D015854:Up-Regulation / Q000187:drug effects / Q000276:immunology
chemical_list: D007155:Immunologic Factors; D016899:Interferon-beta