Proteomics

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In-depth proteomic investigation of isogenic radiation resistant prostate cancer cell lines


ABSTRACT: To model radioresistance, we generated radiation resistant cells using conventional (CF) and hypofractionated (HF) treatment schedules. We then evaluated the proteome of CF, HF and parental cells and discovered over 300 dysregulated proteins in the CF and HF cells relative to parental. Pathway analyses revealed upregulation of PI3K AkT mTOR signaling, oxidative phosphorylation, hypoxia, glycolysis, epithelial to mesenchymal transition (EMT), E2F targets and DNA repair in the radioresistant cells. We validated our proteomic findings that CD44 is enriched in CF and HF cells by western blot and flow cytometry. Finally, treatment with blocking anti-CD44 antibody promoted radiosensitization.

INSTRUMENT(S): Orbitrap Fusion

ORGANISM(S): Homo Sapiens (ncbitaxon:9606)

SUBMITTER: Dr. Thomas Kislinger  

PROVIDER: MSV000086545 | MassIVE | Wed Dec 02 13:53:00 GMT 2020

REPOSITORIES: MassIVE

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