Article (Scientific journals)
Targeted Proteomics to Assess the Response to Anti-Angiogenic Treatment in Human Glioblastoma (GBM).
Demeure, Kevin; Fack, Fred; DURIEZ, Elodie et al.
2016In Molecular and Cellular Proteomics, 15 (2), p. 481-92
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Keywords :
Biomarkers, Tumor; Neoplasm Proteins; 2S9ZZM9Q9V (Bevacizumab); Animals; Apoptosis/drug effects; Bevacizumab/administration & dosage; Biomarkers, Tumor/biosynthesis/genetics; Cell Line, Tumor; Cell Proliferation/drug effects; Female; Gene Expression Regulation, Neoplastic/drug effects; Glioblastoma/drug therapy/genetics/pathology; Humans; Male; Mice; Neoplasm Proteins/biosynthesis/genetics; Neovascularization, Pathologic/drug therapy/genetics/pathology; Proteomics; Rats; Xenograft Model Antitumor Assays
Abstract :
[en] Glioblastoma (GBM) is a highly aggressive primary brain tumor with dismal outcome for affected patients. Because of the significant neo-angiogenesis exhibited by GBMs, anti-angiogenic therapies have been intensively evaluated during the past years. Recent clinical studies were however disappointing, although a subpopulation of patients may benefit from such treatment. We have previously shown that anti-angiogenic targeting in GBM increases hypoxia and leads to a metabolic adaptation toward glycolysis, suggesting that combination treatments also targeting the glycolytic phenotype may be effective in GBM patients. The aim of this study was to identify marker proteins that are altered by treatment and may serve as a short term readout of anti-angiogenic therapy. Ultimately such proteins could be tested as markers of efficacy able to identify patient subpopulations responsive to the treatment. We applied a proteomics approach based on selected reaction monitoring (SRM) to precisely quantify targeted protein candidates, selected from pathways related to metabolism, apoptosis and angiogenesis. The workflow was developed in the context of patient-derived intracranial GBM xenografts developed in rodents and ensured the specific identification of human tumor versus rodent stroma-derived proteins. Quality control experiments were applied to assess sample heterogeneity and reproducibility of SRM assays at different levels. The data demonstrate that tumor specific proteins can be precisely quantified within complex biological samples, reliably identifying small concentration differences induced by the treatment. In line with previous work, we identified decreased levels of TCA cycle enzymes, including isocitrate dehydrogenase, whereas malectin, calnexin, and lactate dehydrogenase A were augmented after treatment. We propose the most responsive proteins of our subset as potential novel biomarkers to assess treatment response after anti-angiogenic therapy that warrant future analysis in clinical GBM samples.
Disciplines :
Oncology
Author, co-author :
Demeure, Kevin;  From the ‡NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
Fack, Fred;  From the ‡NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
DURIEZ, Elodie ;  Genomics and Proteomics Research Unit, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
Tiemann, Katja;  From the ‡NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
Bernard, Amandine;  From the ‡NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
GOLEBIEWSKA, Anna ;  NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
Bougnaud, Sébastien;  From the ‡NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
Bjerkvig, Rolf;  From the ‡NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg, ¶KG Jebsen Brain Tumour Research Center, Department of Biomedicine, University of Bergen, Bergen, Norway.
Domon, Bruno;  §Genomics and Proteomics Research Unit, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg,
NICLOU, Simone P. ;  NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg, KG Jebsen Brain Tumour Research Center, Department of Biomedicine, University of Bergen, Bergen, Norway
External co-authors :
yes
Language :
English
Title :
Targeted Proteomics to Assess the Response to Anti-Angiogenic Treatment in Human Glioblastoma (GBM).
Publication date :
February 2016
Journal title :
Molecular and Cellular Proteomics
ISSN :
1535-9476
eISSN :
1535-9484
Publisher :
American Society for Biochemistry and Molecular Biology, United States - Maryland
Volume :
15
Issue :
2
Pages :
481-92
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
© 2016 by The American Society for Biochemistry and Molecular Biology, Inc.
Available on ORBilu :
since 26 February 2024

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