PXD040847-2

PXD040847 is an original dataset announced via ProteomeXchange.

Title	Altered profile of glycosylated proteins in serum samples obtained from patients with Hashimoto′s thyroiditis following depletion of highly abundant proteins
Description	Objectives: Hashimoto’s thyroiditis (HT) is one of the most common autoimmune disorders; however, its underlying pathological mechanisms remain unclear. Although aberrant glycosylation has been implicated in the N-glycome of immunoglobulin G (IgG), changes in serum proteins have not been comprehensively characterized. This study aimed to investigate the glycosylation profile of serum samples of HT patients that were depleted of highly abundant proteins by and propose the potential functions of glycoproteins for the further study of pathological mechanisms of HT . Methods: A lectin microarray containing 70 lectins was used to detect and analyze glycosylation of serum proteins using serum samples (N=27 HT; N=26 healthy control [HC]) depleted of abundant proteins. Significant differences in glycosylation status between HT patients and the HC group were verified by lectin blot analysis. A lectin-based pull-down assay combined with mass spectrometry was used to investigate potential glycoproteins combined with differentially present lectins, and an enzyme-linked immunosorbent assay (ELISA) was used to identify the expression of targeted glycoproteins in 131 patients with papillary thyroid carcinoma (PTC), 131 patients with benign thyroid nodules (BTN) patients, 130 patients with HT, and 128 HCs. Results: Compared with the HC group, the majority of the lectin binding signals in HT group were weakened, while the Vicia villosa agglutinin (VVA) binding signal was increased. The difference in VVA binding signals verified by lectin blotting was consistent with the results of the lectin microarray. A total of 113 potential VVA-binding glycoproteins were identified by mass spectrometry and classified by gene ontology (GO) and kyoto encyclopedia of genes and genomes (KEGG) analyses . Using ELISA, we confirmed that lactoferrin (LTF) and mannan-binding lectin-associated serine protease 1 (MASP-1) levels were elevated in the serum of patients with HT and PTC. Conclusions: Following depletion of abundant proteins, remaining serum proteins in HT patients exhibited lower glycosylation levels than those observed in HCs. An increased level of potential VVA-binding glycoproteins may play an important role in HT development. LTF and MASP-1 expression was significantly higher in the serum of HT and PTC patients, suggesting key roles played by glycosylation in pathological mechanisms underlying HT and PTC.
HostingRepository	PRIDE
AnnounceDate	2024-10-22
AnnouncementXML	Submission_2024-10-22_05:49:33.285.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Yaozheng Xu
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	iodoacetamide derivatized residue
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2023-03-14 01:08:23	ID requested
1	2023-06-22 01:39:04	announced
⏵ 2	2024-10-22 05:49:33	announced	2024-10-22: Updated project metadata.

Dataset with its publication pending

submitter keyword: glycosylation, LTF, MASP-1, lectin microarray, VVA,Hashimoto′s thyroiditis

Xiaosong Qin
contact affiliation	Department of Laboratory Medicine, Shengjing Hospital of China Medical University, Shenyang, China.
contact email	qinxs@sj-hospital.org
lab head
Yaozheng Xu
contact affiliation	Department of Laboratory Medicine, Shengjing Hospital of China Medical University, Shenyang, China.
contact email	2897467503@qq.com
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD040847
     1. Label: PRIDE project
     2. Name: Altered profile of glycosylated proteins in serum samples obtained from patients with Hashimoto′s thyroiditis following depletion of highly abundant proteins