Use of on-line supercritical fluid extraction-supercritical fluid chromatography/tandem mass spectrometry to analyze disease biomarkers in dried serum spots compared with serum analysis using liquid chromatography/tandem mass spectrometry

Makoto Suzuki, Shin Nishiumi, Takashi Kobayashi, Arata Sakai, Yosuke Iwata, Takato Uchikata, Yoshihiro Izumi, Takeshi Azuma, Takeshi Bamba, Masaru Yoshida

    Research output: Contribution to journalArticlepeer-review

    40 Citations (Scopus)

    Abstract

    Rationale: The analytical stability and throughput of biomarker assays based on dried serum spots (DSS) are strongly dependent on the extraction process and determination method. In the present study, an on-line system based on supercritical fluid extraction-supercritical fluid chromatography coupled with tandem mass spectrometry (SFE-SFC/MS/MS) was established for analyzing the levels of disease biomarkers in DSS. Methods: The chromatographic conditions were investigated using the ODS-EP, diol, and SIL-100A columns. Then, we optimized the SFE-SFC/MS/MS method using the diol column, focusing on candidate biomarkers of oral, colorectal, and pancreatic cancer that were identified using liquid chromatography (LC)/MS/MS. Results: By using this system, four hydrophilic metabolites and 17 hydrophobic metabolites were simultaneously detected within 15 min. In an experiment involving clinical samples, PC 16:0-18:2/16:1-18:1 exhibited 93.8% sensitivity and 64.3% specificity, whereas PC 17:1-18:1/17:0-18:2 showed 81.3% sensitivity and 92.9% specificity for detecting oral cancer. In addition, assessments of the creatine levels demonstrated 92.3% sensitivity and 78.6% specificity for detecting colorectal cancer. Conclusions: The results of this study indicate that our method has great potential for clinical diagnosis and would be suitable for large-scale screening.

    Original languageEnglish
    Pages (from-to)886-894
    Number of pages9
    JournalRapid Communications in Mass Spectrometry
    Volume31
    Issue number10
    DOIs
    Publication statusPublished - May 30 2017

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry
    • Spectroscopy
    • Organic Chemistry

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