Journal
EXPERT REVIEW OF PROTEOMICS
Volume 14, Issue 11, Pages 1021-1035Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14789450.2017.1387053
Keywords
Bioinformatics; biomarker; cancer secretome; conditioned media; proteomics; tumor interstitial fluid
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Funding
- CARD: Centre of excellence [DNRF125]
- Innovation Fund Denmark
- Danish Cancer Society
- John and Birthe Meyer Foundation
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Introduction: Tumor-associated proteins released by cancer cells and by tumor stroma cells, referred as 'cancer secretome', represent a valuable resource for discovery of potential cancer biomarkers. The last decade was marked by a great increase in number of studies focused on various aspects of cancer secretome including, composition and identification of components externalized by malignant cells and by the components of tumor microenvironment. Areas covered: Here, we provide an overview of achievements in the proteomic analysis of the cancer secretome, elicited through the tumor-associated interstitial fluid recovered from malignant tissues ex vivo or the protein component of conditioned media obtained from cultured cancer cells in vitro. We summarize various bioinformatic tools and approaches and critically appraise their outcomes, focusing on problems and challenges that arise when applied for the analysis of cancer secretomic databases. Expert commentary: Recent achievements in the omics-analysis of structural and metabolic aspects of altered cancer secretome contribute greatly to the various hallmarks of cancer including the identification of clinically significant biomarkers and potential targets for therapeutic intervention.
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