期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 21, 页码 -出版社
MDPI
DOI: 10.3390/ijms222111527
关键词
type 1 autoimmune pancreatitis; IgG4; N-glycosylation; mass spectrometry
资金
- Ministry of Science and Technology, Taiwan [107-2314-B-038-019-MY3, 108-2320-B-038-060-MY3]
The study developed an analytical workflow for dissecting IgG4 glycosylation profiles for autoimmune pancreatitis. Comparisons revealed specific features of IgG4 glycosylation in the AIP group, which could serve as potential biomarkers.
Type 1 autoimmune pancreatitis (AIP) is categorized as an IgG4-related disease (IgG4-RD), where a high concentration of plasma IgG4 is one of the common biomarkers among patients. IgG Fc-glycosylation has been reported to be potential biosignatures for diseases. However, human IgG3 and IgG4 Fc-glycopeptides from populations in Asia were found to be isobaric ions when using LC-MS/MS as an analytical tool. In this study, an analytical workflow that coupled affinity purification and stable isotope dilution LC-MS/MS was developed to dissect IgG4 glycosylation profiles for autoimmune pancreatitis. Comparing the IgG4 and glycosylation profiles among healthy controls, patients with pancreatic ductal adenocarcinoma (PDAC), and AIP, the IgG4 glycosylations from the AIP group were found to have more digalactosylation (compared to PDAC) and less monogalactosylation (compared to HC). In addition, higher fucosylation and sialylation profiles were also discovered for the AIP group. The workflow is efficient and selective for IgG4 glycopeptides, and can be used for clinical biosignature discovery.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据