Journal Highlight: Laser ablation ICP-MS: Application in biomedical research

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  • Published: Jan 1, 2017
  • Author: spectroscopyNOW
  • Channels: Atomic
thumbnail image: Journal Highlight: Laser ablation ICP-MS: Application in biomedical research
Recent biomedical applications in LA-ICP-MS imaging alone and in combination with molecular MSI techniques have been reviewed with applications in neurodegenerative diseases, distribution of contrast agents and metallodrugs, and metalloproteomics.

Laser ablation ICP-MS: Application in biomedical research

Mass Spectrometry Reviews, 2017, 36, 47-57
Alessandra Sussulini, Julia Susanne Becker and Johanna Sabine Becker

Abstract: In the last decade, the development of diverse bioanalytical methodologies based on mass spectrometry imaging has increased, as has their application in biomedical questions. The distribution analysis of elements (metals, semimetals, and non-metals) in biological samples is a point of interest in life sciences, especially within the context of metallomics, which is the scientific field that encompasses the global analysis of the entirety of elemental species inside a cell or tissue. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been efficiently employed to generate qualitative and quantitative maps of elemental distribution in thin tissue sections of a variety of biological samples, for example, brain, cartilage, spinal cord, etc. The combination of elemental with molecular mass spectrometry allows obtaining information about the elements bound to proteins, when they are previously separated by gel electrophoresis (metalloproteomics), and also adding a new dimension to molecular mass spectrometry imaging by the correlation of molecular and elemental distribution maps in definite regions in a biological tissue. In the present review, recent biomedical applications in LA-ICP-MS imaging as a stand-alone technique and in combination with molecular mass spectrometry imaging techniques are discussed. Applications of LA-ICP-MS in the study of neurodegenerative diseases, distribution of contrast agents and metallodrugs, and metalloproteomics will be focused in this review.

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