Ratiometric Raman imaging reveals the new anti-cancer potential of lipid targeting drugs. Issue 34 (31st July 2018)

• Record Type: Journal Article
• Authors: Jamieson, Lauren E.; Wetherill, Corinna; Faulds, Karen; Graham, Duncan
• Is Part Of: Chemical science. Volume 9:Issue 34(2018)
• Page Start: 6935
• Page End: 6943
• Publication Date: 2018-07-31
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c8sc02312c
• Languages: English
• ISSNs: 2041-6520

Abstract

Abstract : A statistically meaningful ratiometric Raman imaging approach creates phenotypic barcodes to screen for anti-cancer potential of lipid targeting drugs. Abstract : De novo lipid synthesis is upregulated in cancer cells and inhibiting these pathways has displayed anti-tumour activity. Here we use Raman spectroscopy, focusing solely on high wavenumber spectra, to detect changes in lipid composition in single cells in response to drugs targeting de novo lipid synthesis. Unexpectedly, the beta-blocker propranolol showed selectively towards cancerous PC3 compared to non-cancerous PNT2 prostate cells, demonstrating the potential of this approach to identify new anti-cancer drug leads. A unique and simple ratiometric approach for intracellular lipid investigation is reported using statistical analysis to create phenotypic 'barcodes', a globally applicable strategy for Raman drug-cell studies. High wavenumber spectral analysis is compatible with low cost glass substrates, easily translatable into the cytological work stream. The analytical strength of this technique could have a significant impact on cancer treatment through vastly improved understanding of cancer cell metabolism, and thus guide drug design and enhance personalised medicine strategies.