Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis

Rheumatoid arthritis is a systemic, polygenic, and multifactorial syndrome characterized by erosive polyarthritis, damage to joint architecture, and presence of autoantibodies against several self-structures in the serum and synovial fluid. These autoantibodies (anticitrullinated protein/peptide ant...

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Main Authors: Qinghua Fang, Jiaxin Ou, Kutty Selva Nandakumar
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2019/6363086
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author Qinghua Fang
Jiaxin Ou
Kutty Selva Nandakumar
author_facet Qinghua Fang
Jiaxin Ou
Kutty Selva Nandakumar
author_sort Qinghua Fang
collection DOAJ
description Rheumatoid arthritis is a systemic, polygenic, and multifactorial syndrome characterized by erosive polyarthritis, damage to joint architecture, and presence of autoantibodies against several self-structures in the serum and synovial fluid. These autoantibodies (anticitrullinated protein/peptide antibodies (ACPAs), rheumatoid factors (RF), anticollagen type II antibodies, antiglucose-6 phosphate isomerase antibodies, anticarbamylated protein antibodies, and antiacetylated protein antibodies) have different characteristics, diagnostic/prognostic value, and pathological significance in RA patients. Some of these antibodies are present in the patients’ serum several years before the onset of clinical disease. Various genetic and environmental factors are associated with autoantibody production against different autoantigenic targets. Both the activating and inhibitory FcγRs and the activation of different complement cascades contribute to the downstream effector functions in the antibody-mediated disease pathology. Interplay between several molecules (cytokines, chemokines, proteases, and inflammatory mediators) culminates in causing damage to the articular cartilage and bones. In addition, autoantibodies are proven to be useful disease markers for RA, and different diagnostic tools are being developed for early diagnosis of the clinical disease. Recently, a direct link was proposed between the presence of autoantibodies and bone erosion as well as in the induction of pain. In this review, the diagnostic value of autoantibodies, their synthesis and function as a mediator of joint inflammation, and the significance of IgG-Fc glycosylation are discussed.
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spelling doaj-art-543864defc984a978a761f11b36d4eed2025-02-03T01:32:38ZengWileyMediators of Inflammation0962-93511466-18612019-01-01201910.1155/2019/63630866363086Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in ArthritisQinghua Fang0Jiaxin Ou1Kutty Selva Nandakumar2School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, ChinaSchool of Pharmaceutical Sciences, Southern Medical University, Guangzhou, ChinaSchool of Pharmaceutical Sciences, Southern Medical University, Guangzhou, ChinaRheumatoid arthritis is a systemic, polygenic, and multifactorial syndrome characterized by erosive polyarthritis, damage to joint architecture, and presence of autoantibodies against several self-structures in the serum and synovial fluid. These autoantibodies (anticitrullinated protein/peptide antibodies (ACPAs), rheumatoid factors (RF), anticollagen type II antibodies, antiglucose-6 phosphate isomerase antibodies, anticarbamylated protein antibodies, and antiacetylated protein antibodies) have different characteristics, diagnostic/prognostic value, and pathological significance in RA patients. Some of these antibodies are present in the patients’ serum several years before the onset of clinical disease. Various genetic and environmental factors are associated with autoantibody production against different autoantigenic targets. Both the activating and inhibitory FcγRs and the activation of different complement cascades contribute to the downstream effector functions in the antibody-mediated disease pathology. Interplay between several molecules (cytokines, chemokines, proteases, and inflammatory mediators) culminates in causing damage to the articular cartilage and bones. In addition, autoantibodies are proven to be useful disease markers for RA, and different diagnostic tools are being developed for early diagnosis of the clinical disease. Recently, a direct link was proposed between the presence of autoantibodies and bone erosion as well as in the induction of pain. In this review, the diagnostic value of autoantibodies, their synthesis and function as a mediator of joint inflammation, and the significance of IgG-Fc glycosylation are discussed.http://dx.doi.org/10.1155/2019/6363086
spellingShingle Qinghua Fang
Jiaxin Ou
Kutty Selva Nandakumar
Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis
Mediators of Inflammation
title Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis
title_full Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis
title_fullStr Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis
title_full_unstemmed Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis
title_short Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis
title_sort autoantibodies as diagnostic markers and mediator of joint inflammation in arthritis
url http://dx.doi.org/10.1155/2019/6363086
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AT kuttyselvanandakumar autoantibodiesasdiagnosticmarkersandmediatorofjointinflammationinarthritis