Association of MASP-2 levels and MASP2 gene polymorphisms with rheumatoid arthritis in patients and their relatives

Mannan-binding lectin-associated serine protease 2 (MASP-2) is a key protein of the lectin pathway of complement. MASP-2 levels have been associated with different polymorphisms within MASP2 gene as well as with the risk for inflammatory disorders and infections. Despite its clinical importance, MAS...

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Veröffentlicht in:PloS one 2014-03, Vol.9 (3), p.e90979-e90979
Hauptverfasser: Goeldner, Isabela, Skare, Thelma, Boldt, Angelica B W, Nass, Flavia R, Messias-Reason, Iara J, Utiyama, Shirley R
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container_title PloS one
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creator Goeldner, Isabela
Skare, Thelma
Boldt, Angelica B W
Nass, Flavia R
Messias-Reason, Iara J
Utiyama, Shirley R
description Mannan-binding lectin-associated serine protease 2 (MASP-2) is a key protein of the lectin pathway of complement. MASP-2 levels have been associated with different polymorphisms within MASP2 gene as well as with the risk for inflammatory disorders and infections. Despite its clinical importance, MASP-2 remains poorly investigated in rheumatoid arthritis (RA). In this case-control study, we measured MASP-2 serum levels in 156 RA patients, 44 patient relatives, and 100 controls from Southern Brazil, associating the results with nine MASP2 polymorphisms in all patients, 111 relatives, and 230 controls genotyped with multiplex SSP-PCR. MASP-2 levels were lower in patients than in controls and relatives (medians 181 vs. 340 or 285 ng/ml, respectively, P
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MASP-2 levels have been associated with different polymorphisms within MASP2 gene as well as with the risk for inflammatory disorders and infections. Despite its clinical importance, MASP-2 remains poorly investigated in rheumatoid arthritis (RA). In this case-control study, we measured MASP-2 serum levels in 156 RA patients, 44 patient relatives, and 100 controls from Southern Brazil, associating the results with nine MASP2 polymorphisms in all patients, 111 relatives, and 230 controls genotyped with multiplex SSP-PCR. MASP-2 levels were lower in patients than in controls and relatives (medians 181 vs. 340 or 285 ng/ml, respectively, P&lt;0.0001). Conversely, high MASP-2 levels were associated with lower susceptibility to RA and to articular symptoms independently of age, gender, ethnicity, smoking habit, anti-CCP and rheumatoid factor positivity (OR = 0.05 [95%CI = 0.019-0.13], P&lt;0.0001 between patients and controls; OR = 0.12, [95%CI = 0.03-0.45], P = 0.002 between patients and relatives; OR = 0.06, [95%CI = 0.004-0.73], P = 0.03 between relatives with and without articular symptoms). MASP2 haplotypes *2A1 and *2B1-i were associated with increased susceptibility to RA (OR = 3.32 [95%CI = 1.48-7.45], P = 0.004). Deficiency-causing p.120G and p.439H substitutions were associated with five times increased susceptibility to articular symptoms in relatives (OR = 5.13 [95%CI = 1.36-20.84], P = 0.02). There was no association of MASP-2 levels or MASP2 polymorphisms with autoantibodies, Sjögren's syndrome, nodules and functional class. In this study, we found the first evidence that MASP-2 deficiency might play an important role in the development of RA and articular symptoms among relatives of RA patients.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0090979</identifier><identifier>PMID: 24632598</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adult ; Aged ; Antigens ; Arthritis ; Arthritis, Rheumatoid - genetics ; Arthritis, Rheumatoid - metabolism ; Arthritis, Rheumatoid - pathology ; Autoantibodies ; Autoimmunity ; Biology and Life Sciences ; Case-Control Studies ; Control methods ; Disease ; Ethics ; Evangelicalism ; Female ; Gene expression ; Genes ; Genetic aspects ; Genetic polymorphisms ; Genetic Predisposition to Disease - genetics ; Genotype ; Haplotypes ; Health aspects ; Health risks ; Hospitals ; Humans ; Inflammatory diseases ; Lectins ; Male ; Mannan ; Mannose-binding lectin ; Mannose-Binding Protein-Associated Serine Proteases - genetics ; Mannose-Binding Protein-Associated Serine Proteases - metabolism ; MASP-2 protein ; MASP2 gene ; Medical research ; Medicine and Health Sciences ; Middle Aged ; Minority &amp; ethnic groups ; Multiplexing ; Nodules ; Pathology ; Patients ; Pediatrics ; Polymorphism, Genetic - genetics ; Population ; Proteins ; Rheumatoid arthritis ; Rheumatoid factor ; Rheumatology ; Risk factors ; Serine ; Serine proteinase ; Serum levels ; Sjogren's syndrome ; Smoking ; Studies ; Thrombin ; Young Adult</subject><ispartof>PloS one, 2014-03, Vol.9 (3), p.e90979-e90979</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Goeldner et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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MASP-2 levels have been associated with different polymorphisms within MASP2 gene as well as with the risk for inflammatory disorders and infections. Despite its clinical importance, MASP-2 remains poorly investigated in rheumatoid arthritis (RA). In this case-control study, we measured MASP-2 serum levels in 156 RA patients, 44 patient relatives, and 100 controls from Southern Brazil, associating the results with nine MASP2 polymorphisms in all patients, 111 relatives, and 230 controls genotyped with multiplex SSP-PCR. MASP-2 levels were lower in patients than in controls and relatives (medians 181 vs. 340 or 285 ng/ml, respectively, P&lt;0.0001). 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MASP-2 levels have been associated with different polymorphisms within MASP2 gene as well as with the risk for inflammatory disorders and infections. Despite its clinical importance, MASP-2 remains poorly investigated in rheumatoid arthritis (RA). In this case-control study, we measured MASP-2 serum levels in 156 RA patients, 44 patient relatives, and 100 controls from Southern Brazil, associating the results with nine MASP2 polymorphisms in all patients, 111 relatives, and 230 controls genotyped with multiplex SSP-PCR. MASP-2 levels were lower in patients than in controls and relatives (medians 181 vs. 340 or 285 ng/ml, respectively, P&lt;0.0001). Conversely, high MASP-2 levels were associated with lower susceptibility to RA and to articular symptoms independently of age, gender, ethnicity, smoking habit, anti-CCP and rheumatoid factor positivity (OR = 0.05 [95%CI = 0.019-0.13], P&lt;0.0001 between patients and controls; OR = 0.12, [95%CI = 0.03-0.45], P = 0.002 between patients and relatives; OR = 0.06, [95%CI = 0.004-0.73], P = 0.03 between relatives with and without articular symptoms). MASP2 haplotypes *2A1 and *2B1-i were associated with increased susceptibility to RA (OR = 3.32 [95%CI = 1.48-7.45], P = 0.004). Deficiency-causing p.120G and p.439H substitutions were associated with five times increased susceptibility to articular symptoms in relatives (OR = 5.13 [95%CI = 1.36-20.84], P = 0.02). There was no association of MASP-2 levels or MASP2 polymorphisms with autoantibodies, Sjögren's syndrome, nodules and functional class. In this study, we found the first evidence that MASP-2 deficiency might play an important role in the development of RA and articular symptoms among relatives of RA patients.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24632598</pmid><doi>10.1371/journal.pone.0090979</doi><tpages>e90979</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Public Library of Science (PLoS) Journals Open Access; PubMed Central; Free Full-Text Journals in Chemistry
subjects Adult
Aged
Antigens
Arthritis
Arthritis, Rheumatoid - genetics
Arthritis, Rheumatoid - metabolism
Arthritis, Rheumatoid - pathology
Autoantibodies
Autoimmunity
Biology and Life Sciences
Case-Control Studies
Control methods
Disease
Ethics
Evangelicalism
Female
Gene expression
Genes
Genetic aspects
Genetic polymorphisms
Genetic Predisposition to Disease - genetics
Genotype
Haplotypes
Health aspects
Health risks
Hospitals
Humans
Inflammatory diseases
Lectins
Male
Mannan
Mannose-binding lectin
Mannose-Binding Protein-Associated Serine Proteases - genetics
Mannose-Binding Protein-Associated Serine Proteases - metabolism
MASP-2 protein
MASP2 gene
Medical research
Medicine and Health Sciences
Middle Aged
Minority & ethnic groups
Multiplexing
Nodules
Pathology
Patients
Pediatrics
Polymorphism, Genetic - genetics
Population
Proteins
Rheumatoid arthritis
Rheumatoid factor
Rheumatology
Risk factors
Serine
Serine proteinase
Serum levels
Sjogren's syndrome
Smoking
Studies
Thrombin
Young Adult
title Association of MASP-2 levels and MASP2 gene polymorphisms with rheumatoid arthritis in patients and their relatives
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