N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome disease

IntroductionAnti-synthetase syndrome (ASS) is a subtype of idiopathic inflammatory myopathy (IIM) characterized by characteristic rash, myositis, and interstitial lung disease (ILD). The etiology of ASS is unknown, and patients have a poor quality of life and are prone to pulmonary infection. Recent...

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Main Authors: Jing Zhao, Yanhong Li, Yingying Ling, Tong Wu, Yinlan Wu, Chunyu Tan, Lu Cheng, Deying Huang, Yi Liu, Yong Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Immunology
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Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2025.1538219/full
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author Jing Zhao
Yanhong Li
Yingying Ling
Tong Wu
Yinlan Wu
Chunyu Tan
Lu Cheng
Deying Huang
Yi Liu
Yong Zhang
author_facet Jing Zhao
Yanhong Li
Yingying Ling
Tong Wu
Yinlan Wu
Chunyu Tan
Lu Cheng
Deying Huang
Yi Liu
Yong Zhang
author_sort Jing Zhao
collection DOAJ
description IntroductionAnti-synthetase syndrome (ASS) is a subtype of idiopathic inflammatory myopathy (IIM) characterized by characteristic rash, myositis, and interstitial lung disease (ILD). The etiology of ASS is unknown, and patients have a poor quality of life and are prone to pulmonary infection. Recent studies have elucidated the potential role of abnormal glycosylation of immunoglobulin G (IgG) in the pathogenesis of autoimmune diseases. However, the pattern of patient-specific IgG N-glycosylation in ASS has not been fully elucidated.Methodsthe GlycoQuant method was used to quantify the intact N-glycopeptides of IgG from 30 ASS patients and 30 healthy controls (HCs). Results and DiscussionThirteen differentially expressed intact N-glycopeptides were identified (p<0.05). Notably, we observed increased fucosylation (p<0.0001) and decreased N-acetylneuraminic acid (p<0.05) in ASS patients. In addition, specific glycosylation patterns correlated with lung function parameters. Our study revealed the IgG glycosylation profile in ASS patients and provided a valuable reference for further investigation of its potential diagnostic and prognostic applications.
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issn 1664-3224
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publishDate 2025-06-01
publisher Frontiers Media S.A.
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spelling doaj-art-ad112dfb78764f2e86e3d6611d4f715f2025-08-20T03:21:56ZengFrontiers Media S.A.Frontiers in Immunology1664-32242025-06-011610.3389/fimmu.2025.15382191538219N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome diseaseJing ZhaoYanhong LiYingying LingTong WuYinlan WuChunyu TanLu ChengDeying HuangYi LiuYong ZhangIntroductionAnti-synthetase syndrome (ASS) is a subtype of idiopathic inflammatory myopathy (IIM) characterized by characteristic rash, myositis, and interstitial lung disease (ILD). The etiology of ASS is unknown, and patients have a poor quality of life and are prone to pulmonary infection. Recent studies have elucidated the potential role of abnormal glycosylation of immunoglobulin G (IgG) in the pathogenesis of autoimmune diseases. However, the pattern of patient-specific IgG N-glycosylation in ASS has not been fully elucidated.Methodsthe GlycoQuant method was used to quantify the intact N-glycopeptides of IgG from 30 ASS patients and 30 healthy controls (HCs). Results and DiscussionThirteen differentially expressed intact N-glycopeptides were identified (p<0.05). Notably, we observed increased fucosylation (p<0.0001) and decreased N-acetylneuraminic acid (p<0.05) in ASS patients. In addition, specific glycosylation patterns correlated with lung function parameters. Our study revealed the IgG glycosylation profile in ASS patients and provided a valuable reference for further investigation of its potential diagnostic and prognostic applications.https://www.frontiersin.org/articles/10.3389/fimmu.2025.1538219/fullautoimmune diseaseanti-synthetase syndrome (ASS)N-glycosylationintact N-glycopeptideimmunoglobulin g (IgG)
spellingShingle Jing Zhao
Yanhong Li
Yingying Ling
Tong Wu
Yinlan Wu
Chunyu Tan
Lu Cheng
Deying Huang
Yi Liu
Yong Zhang
N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome disease
Frontiers in Immunology
autoimmune disease
anti-synthetase syndrome (ASS)
N-glycosylation
intact N-glycopeptide
immunoglobulin g (IgG)
title N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome disease
title_full N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome disease
title_fullStr N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome disease
title_full_unstemmed N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome disease
title_short N-glycosylation patterns of plasma immunoglobulin G in anti-synthetase syndrome disease
title_sort n glycosylation patterns of plasma immunoglobulin g in anti synthetase syndrome disease
topic autoimmune disease
anti-synthetase syndrome (ASS)
N-glycosylation
intact N-glycopeptide
immunoglobulin g (IgG)
url https://www.frontiersin.org/articles/10.3389/fimmu.2025.1538219/full
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