Journal Highlight: Raman spectroscopy as an analytical tool for melanoma research

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  • Published: Aug 4, 2014
  • Author: spectroscopyNOW
  • Channels: Raman
thumbnail image: Journal Highlight: Raman spectroscopy as an analytical tool for melanoma research
Raman spectroscopy was used to study normal and melanoma cells, and wild-type and mutant melanoma cells, to investigate whether the technique could distinguish between different types of cells, identify mutations and evaluate response to anticancer therapy.


Raman spectroscopy as an analytical tool for melanoma research

Clinical and Experimental Dermatology, 2014, 39, 636-645
E. Brauchle, S. Noor, E. Holtorf, C. Garbe, K. Schenke-Layland and C. Busch

Abstract: Raman spectroscopy is an optical noninvasive screening technology that generates individual fingerprints of living cells by reflecting their molecular constitution. We used Raman spectroscopy on normal and melanoma cells, and on wild-type (WT) and mutant melanoma cells, to investigate whether the technique could distinguish between different types of cells, identify mutations and evaluate response to anticancer therapy. Using the multivariate principal component analysis of the Raman spectra, melanocytes could be distinguished from melanoma cells, and WT melanoma cells could be distinguished from melanoma cells with BRAF or NRAS mutations. When we used the apoptosis inducer staurosporine, the necrosis inducer 3-bromopyruvate and the autophagy inducer resveratrol to induce cell death in SKMEL28 melanoma cells, Raman spectroscopy clearly distinguished between these three types of cell death, as confirmed by immunoblotting. Finally, the technique could discriminate between different melanoma cell lines according to their susceptibility to high-dose ascorbate. Raman spectroscopy is a powerful noninvasive tool to distinguish between melanocytes and melanoma cells, to analyze the specific type of cell death in melanoma cells, and to predict the susceptibility of melanoma cells to anticancer drugs.

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