Application of holistic liquid chromatography-high resolution mass spectrometry based urinary metabolomics for prostate cancer detection and biomarker discovery

Tong Zhang, David G Watson, Lijie Wang, Muhammad Abbas, Laura Murdoch, Lisa Bashford, Imran Ahmad, Nga-Yee Lam, Anthony C F Ng, Hing Y Leung

Research output: Contribution to journalArticle

44 Citations (Scopus)
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Abstract

Human exhibit wide variations in their metabolic profiles because of differences in genetic factors, diet and lifestyle. Therefore in order to detect metabolic differences between individuals robust analytical methods are required. A protocol was produced based on the use of Liquid Chromatography- High Resolution Mass Spectrometry (LC-HRMS) in combination with orthogonal Hydrophilic Interaction (HILIC) and Reversed Phase (RP) liquid chromatography methods for the analysis of the urinary metabolome, which was then evaluated as a diagnostic tool for prostate cancer (a common but highly heterogeneous condition). The LC-HRMS method was found to be robust and exhibited excellent repeatability for retention times (0.9. In addition, using the receiver operator characteristics (ROC) test, the area under curve (AUC) for the combination of the four best characterised biomarker compounds was 0.896. The four biomarker compounds were also found to differ significantly (P
Original languageEnglish
Pages (from-to)e65880
JournalPLoS ONE
Volume8
Issue number6
DOIs
Publication statusPublished - 18 Jun 2013

Keywords

  • holistic
  • liquid chromatography-high resolution mass spectrometry
  • urinary metabolomics
  • prostate cancer detection
  • biomarker discovery

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