FTIR-spectroscopic and LA-ICP-MS imaging for combined hyperspectral image analysis of tumor models

A. Balbekova, M. Bonta, S. Török, J. Ofner, B. Döme, A. Limbeck, B. Lendl

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Modern chemical imaging techniques provide spatially resolved information on the molecular and elemental composition of samples with both high spatial and spectral resolution. Over the past few decades these techniques, in particular, Fourier transform infrared (FTIR) spectroscopy and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) have been successfully applied in histopathological research. This work demonstrates that the multivariate analysis of combined FTIR and LA-ICP-MS microscopy hyperspectral images can bring additional knowledge to biomedical research. The concept of such analysis was demonstrated while investigating two different tumor samples subjected to anticancer therapy. Combined analysis has revealed a correlation between the lateral distribution of analytes and sample properties within the different techniques. Correlations between alterations in the average protein secondary structure and platinum distribution were found, as well as between changes in the cell nuclear morphology and a reduction of physiologically relevant trace elements. The results of combined analysis suggested different degrees of tumor viability. Univariate analysis and k-means clustering successfully discriminated dead tumor regions and supported the results of combined analysis.

Original languageEnglish
Pages (from-to)5464-5471
Number of pages8
JournalAnalytical Methods
Volume9
Issue number37
DOIs
Publication statusPublished - Oct 7 2017

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Inductively coupled plasma mass spectrometry
Laser ablation
Image analysis
Tumors
Fourier transforms
Infrared radiation
Imaging techniques
Infrared lasers
Spectral resolution
Trace Elements
Platinum
Trace elements
Fourier transform infrared spectroscopy
Microscopic examination
Proteins
Chemical analysis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Engineering(all)

Cite this

FTIR-spectroscopic and LA-ICP-MS imaging for combined hyperspectral image analysis of tumor models. / Balbekova, A.; Bonta, M.; Török, S.; Ofner, J.; Döme, B.; Limbeck, A.; Lendl, B.

In: Analytical Methods, Vol. 9, No. 37, 07.10.2017, p. 5464-5471.

Research output: Contribution to journalArticle

Balbekova, A, Bonta, M, Török, S, Ofner, J, Döme, B, Limbeck, A & Lendl, B 2017, 'FTIR-spectroscopic and LA-ICP-MS imaging for combined hyperspectral image analysis of tumor models', Analytical Methods, vol. 9, no. 37, pp. 5464-5471. https://doi.org/10.1039/c7ay01369h
Balbekova, A. ; Bonta, M. ; Török, S. ; Ofner, J. ; Döme, B. ; Limbeck, A. ; Lendl, B. / FTIR-spectroscopic and LA-ICP-MS imaging for combined hyperspectral image analysis of tumor models. In: Analytical Methods. 2017 ; Vol. 9, No. 37. pp. 5464-5471.
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