Abstract

Identifying molecular alterations occurring during cancer progression is essential for a deeper understanding of the underlying biological processes. Here we have analyzed cancerous and healthy prostate biopsies using nanoLC-MS(MS) to detect proteins with altered expression and N-glycosylation. We have identified 75 proteins with significantly changing expression during disease progression. The biological processes involved were assigned based on protein–protein interaction networks. These include cellular component organization, metabolic and localization processes. Multiple glycoproteins were identified with aberrant glycosylation in prostate cancer, where differences in glycosite-specific sialylation, fucosylation, and galactosylation were the most substantial. Many of the glycoproteins with altered N-glycosylation were extracellular matrix constituents, and are heavily involved in the establishment of the tumor microenvironment.

Details

Title
Alterations in protein expression and site-specific N-glycosylation of prostate cancer tissues
Author
Sugár Simon 1 ; Tóth Gábor 2 ; Fanni, Bugyi 3 ; Vékey Károly 4 ; Karászi Katalin 5 ; Drahos László 4 ; Turiák Lilla 1 

 Research Centre for Natural Sciences, Eötvös Loránd Research Network, MS Proteomics Research Group, Budapest, Hungary (GRID:grid.425578.9) (ISNI:0000 0004 0512 3755); Semmelweis University, Ph.D. School of Pharmaceutical Sciences, Budapest, Hungary (GRID:grid.11804.3c) (ISNI:0000 0001 0942 9821) 
 Research Centre for Natural Sciences, Eötvös Loránd Research Network, MS Proteomics Research Group, Budapest, Hungary (GRID:grid.425578.9) (ISNI:0000 0004 0512 3755); Budapest University of Technology and Economics, Faculty of Chemical Technology and Biotechnology, Budapest, Hungary (GRID:grid.6759.d) (ISNI:0000 0001 2180 0451) 
 Research Centre for Natural Sciences, Eötvös Loránd Research Network, MS Proteomics Research Group, Budapest, Hungary (GRID:grid.425578.9) (ISNI:0000 0004 0512 3755); Eötvös Loránd University, Hevesy György Ph.D. School of Chemistry, Budapest, Hungary (GRID:grid.5591.8) (ISNI:0000 0001 2294 6276) 
 Research Centre for Natural Sciences, Eötvös Loránd Research Network, MS Proteomics Research Group, Budapest, Hungary (GRID:grid.425578.9) (ISNI:0000 0004 0512 3755) 
 Semmelweis University, 1St Department of Pathology and Experimental Cancer Research, Budapest, Hungary (GRID:grid.11804.3c) (ISNI:0000 0001 0942 9821) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2558266512
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.