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 language | English |
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Title of host publication | Surface and Interface Analysis |
Publisher | John Wiley & Sons Ltd |
Publication status | Published - 20 Jun 2012 |
Event | International Conference on Secondary Ion Mass Spectrometry - Lake Garda, Italy Duration: 1 Jan 1824 → … |
Conference
Conference | International Conference on Secondary Ion Mass Spectrometry |
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City | Lake Garda, Italy |
Period | 1/01/24 → … |
Keywords
- metabolomics; ToF-SIMS; hypoxia; cancer; PCA; doxorubicin