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Quantitative site- and structure-specific N-glycoproteomics characterization of differential N-glycosylation in MCF-7/ADR cancer stem cells.
- Source :
-
Clinical Proteomics . 2/5/2020, Vol. 17 Issue 1, p1-11. 11p. - Publication Year :
- 2020
-
Abstract
- Background: Cancer stem cells (CSCs) are reported to be responsible for tumor initiation, progression, metastasis, and therapy resistance where P-glycoprotein (P-gp) as well as other glycoproteins are involved. Identification of these glycoprotein markers is critical for understanding the resistance mechanism and developing therapeutics. Methods: In this study, we report our comparative and quantitative site- and structure-specific N-glycoproteomics study of MCF-7/ADR cancer stem cells (CSCs) vs. MCF-7/ADR cells. With zic-HILIC enrichment, isotopic diethyl labeling, RPLC–MS/MS (HCD) analysis and GPSeeker DB search, differentially expressed N-glycosylation was quantitatively characterized at the intact N-glycopeptide level. Results: 4016 intact N-glycopeptides were identified with spectrum-level FDR ≤ 1%. With the criteria of ≥ 1.5 fold change and p value < 0.05, 247 intact N-glycopeptides were found differentially expressed in MCF-7/ADR CSCs as putative markers. Raw data are available via ProteomeXchange with identifier PXD013836. Conclusions: Quantitative site- and structure-specific N-glycoproteomics characterization may help illustrate the cell stemness property. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CANCER stem cells
*GLYCOSYLATION
*GLYCOPROTEINS
Subjects
Details
- Language :
- English
- ISSN :
- 15426416
- Volume :
- 17
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Clinical Proteomics
- Publication Type :
- Academic Journal
- Accession number :
- 141561347
- Full Text :
- https://doi.org/10.1186/s12014-020-9268-7