| CD6 and syntaxin binding protein 6 variants and response to tumor necrosis factor alpha inhibitors in Danish patients with rheumatoid arthritis. | |
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MedLine Citation:
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PMID: 22685579 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: TNFα inhibitor therapy has greatly improved the treatment of patients with rheumatoid arthritis, however at least 30% do not respond. We aimed to investigate insertions and deletions (INDELS) associated with response to TNFα inhibitors in patients with rheumatoid arthritis (RA). METHODOLOGY AND PRINCIPAL FINDINGS: In the DANBIO Registry we identified 237 TNFα inhibitor naïve patients with RA (81% women; median age 56 years; disease duration 6 years) who initiated treatment with infliximab (n=160), adalimumab (n=56) or etanercept (n=21) between 1999 and 2008 according to national treatment guidelines. Clinical response was assessed at week 26 using EULAR response criteria. Based on literature, we selected 213 INDELS potentially related to RA and treatment response using the GeneVa® (Compugen) in silico database of 350,000 genetic variations in the human genome. Genomic segments were amplified by polymerase chain reaction (PCR), and genotyped by Sanger sequencing or fragment analysis. We tested the association between genotypes and EULAR good response versus no response, and EULAR good response versus moderate/no response using Fisher's exact test. At baseline the median DAS28 was 5.1. At week 26, 68 (29%) patients were EULAR good responders, while 81 (34%) and 88 (37%) patients were moderate and non-responders, respectively. A 19 base pair insertion within the CD6 gene was associated with EULAR good response vs. no response (OR=4.43, 95% CI: 1.99-10.09, p=7.211×10(-5)) and with EULAR good response vs. moderate/no response (OR=4.54, 95% CI: 2.29-8.99, p=3.336×10(-6)). A microsatellite within the syntaxin binding protein 6 (STXBP6) was associated with EULAR good response vs. no response (OR=4.01, 95% CI: 1.92-8.49, p=5.067×10(-5)). CONCLUSION: Genetic variations within CD6 and STXBP6 may influence response to TNFα inhibitors in patients with RA. |
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Authors:
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Sophine B Krintel; Laurent Essioux; Assaf Wool; Julia S Johansen; Ehud Schreiber; Tomer Zekharya; Pinchas Akiva; Mikkel Ostergaard; Merete L Hetland |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2012-06-07 |
Journal Detail:
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Title: PloS one Volume: 7 ISSN: 1932-6203 ISO Abbreviation: PLoS ONE Publication Date: 2012 |
Date Detail:
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Created Date: 2012-06-11 Completed Date: 2012-12-07 Revised Date: 2013-03-05 |
Medline Journal Info:
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Nlm Unique ID: 101285081 Medline TA: PLoS One Country: United States |
Other Details:
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Languages: eng Pagination: e38539 Citation Subset: IM |
Affiliation:
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DANBIO Registry and Department of Rheumatology, Copenhagen University Hospital at Glostrup, Copenhagen, Denmark. krintel@sophine.dk |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Antibodies, Monoclonal / therapeutic use Antibodies, Monoclonal, Humanized / therapeutic use Antigens, CD / genetics* Antigens, Differentiation, T-Lymphocyte / genetics* Antirheumatic Agents / therapeutic use* Arthritis, Rheumatoid / drug therapy*, genetics* Carrier Proteins / genetics* Cohort Studies DNA Mutational Analysis Denmark Female Genotype Humans INDEL Mutation* Immunoglobulin G / therapeutic use Male Middle Aged Polymerase Chain Reaction Receptors, Tumor Necrosis Factor / therapeutic use Treatment Outcome Tumor Necrosis Factor-alpha / antagonists & inhibitors* Young Adult |
| Chemical | |
Reg. No./Substance:
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0/Antibodies, Monoclonal; 0/Antibodies, Monoclonal, Humanized; 0/Antigens, CD; 0/Antigens, Differentiation, T-Lymphocyte; 0/Antirheumatic Agents; 0/CD6 antigen; 0/Carrier Proteins; 0/Immunoglobulin G; 0/Receptors, Tumor Necrosis Factor; 0/STXBP6 protein, human; 0/Tumor Necrosis Factor-alpha; 0/adalimumab; 0/infliximab; 185243-69-0/TNFR-Fc fusion protein |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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