Development and evaluation of matrix application techniques for high throughput mass spectrometry imaging of tissues in the clinic

Lennart R. S. Huizing, Shane R. Ellis, Bart W. A. M. M. Beulen, Florian P. Y. Barre, Paul B. Kwant, Rob J. Vreeken, Ron M. A. Heeren*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Web of Science)

Abstract

Matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI) is a sensitive label-free technique that can be used to study a wide variety of clinical phenotypes. In this context, MSI offers huge diagnostic potential by supporting decision making in the determination of personalized treatment strategies. However, improvements in throughput and robustness are still needed before it finds a place in routine application. While the field has seen tremendous improvements in the throughput of data acquisition, robust and high-throughput sample preparation methods compatible with these acquisition methods need to be developed. To address this challenge, we have developed several methods to reduce the matrix application time to less than 5 min, while maintaining sensitivity and reproducibility. Workflows incorporating these methods provide a pipeline analysis time for MSI sample preparation and acquisition of less than 30 min. The reduced time for these analyses will contribute towards the integration of MSI into routine molecular pathology for clinical diagnostics.

Original languageEnglish
Pages (from-to)7-15
Number of pages9
JournalClinical mass spectrometry
Volume12
DOIs
Publication statusPublished - Apr 2019

Keywords

  • HIGH-SPATIAL-RESOLUTION
  • MOUSE-BRAIN
  • LIPIDS
  • SUBLIMATION
  • PROTEINS
  • LOCALIZATION
  • TRANSMISSION
  • SECTIONS
  • TIME

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