ToF-SIMS as a tool for metabolic profiling small biomolecules in cancer systems

Helen L. Kotze, Emily G. Armitage, John S. Fletcher, Alex Henderson, Kaye J. Williams, Nicholas P. Lockyer, John C. Vickerman

    Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

    Abstract

    Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is emerging as a tool for studying the metabolism of disease. ToF-SIMS enables chemical specificity in addition to high spatial resolution imaging of biological samples from cells to tissue. Here, ToF-SIMS has been used to investigate the metabolic regulation of hypoxia-induced chemoresistance to doxorubicin treatment using multicellular tumour spheroids. Imaging principal component analysis (PCA) was used as a tool to identify the regions of chemistry present within the image that differ as a result of drug treatment. A series of metabolite ToF-SIMS spectra were acquired, which were used to identify quasi-molecular ions and fragments correlated to the PCA loading plots. Metabolite patterns have been identified as potential biomarkers of hypoxia-induced chemoresistance
    Original languageEnglish
    Title of host publicationSurface and Interface Analysis
    PublisherJohn Wiley & Sons Ltd
    Publication statusPublished - 20 Jun 2012
    EventInternational Conference on Secondary Ion Mass Spectrometry - Lake Garda, Italy
    Duration: 1 Jan 1824 → …

    Conference

    ConferenceInternational Conference on Secondary Ion Mass Spectrometry
    CityLake Garda, Italy
    Period1/01/24 → …

    Keywords

    • metabolomics; ToF-SIMS; hypoxia; cancer; PCA; doxorubicin

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