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Mass spectrometry-based expression profiling of clinical prostate cancer
Journal article   Open access   Peer reviewed

Mass spectrometry-based expression profiling of clinical prostate cancer

Michael E Wright, David K Han and Ruedi Aebersold
Molecular & cellular proteomics, Vol.4(4), pp.545-554
04/2005
DOI: 10.1074/mcp.R500008-MCP200
PMID: 15695425
url
https://doi.org/10.1074/mcp.R500008-MCP200View
Published (Version of record) Open Access

Abstract

The maturation of MS technologies has provided a rich opportunity to interrogate protein expression patterns in normal and disease states by applying expression protein profiling methods. Major goals of this research strategy include the identification of protein biomarkers that demarcate normal and disease populations, and the identification of therapeutic biomarkers for the treatment of diseases such as cancer (Celis, J. E., and Gromov, P. (2003) Proteomics in translational cancer research: Toward an integrated approach. Cancer Cell 3, 9-151). Prostate cancer is one disease that would greatly benefit from implementing MS-based expression profiling methods because of the need to stratify the disease based on molecular markers. In this review, we will summarize the current MS-based methods to identify and validate biomarkers in human prostate cancer. Lastly, we propose a reverse proteomic approach implementing a quantitative MS research strategy to identify and quantify biomarkers implicated in prostate cancer development. With this approach, the absolute levels of prostate cancer biomarkers will be identified and quantified in normal and diseased samples by measuring the levels of native peptide biomarkers in relation to a chemically identical but isotopically labeled reference peptide. Ultimately, a centralized prostate cancer peptide biomarker expression database could function as a repository for the identification, quantification, and validation of protein biomarker(s) during prostate cancer progression in men.
Biomarkers, Tumor - blood Biomarkers, Tumor - metabolism Humans Male Mass Spectrometry - methods Neoplasm Proteins - blood Neoplasm Proteins - metabolism Prostatic Neoplasms - blood Prostatic Neoplasms - metabolism Prostatic Neoplasms - pathology Proteome - analysis Proteomics - methods

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