Spatial metabolomics principles and application to cancer research

Area of Science:

• Oncology
• Analytical Chemistry
• Biotechnology

Background:

• Mass spectrometry imaging (MSI) is a rapidly advancing technology in cancer research.
• It enables the spatial identification of metabolites within biological samples.
• Key techniques like desorption electrospray ionization (DESI) and matrix-assisted laser desorption ionization (MALDI) offer near single-cell resolution.

Purpose of the Study:

• To review the diverse applications of MSI in cancer research.
• To highlight the knowledge gained from spatial metabolomics in understanding the tumor microenvironment (TME).
• To discuss the translational and clinical potential of MSI.

Main Methods:

• Utilizing desorption electrospray ionization (DESI) and matrix-assisted laser desorption ionization (MALDI) MSI.
• Analyzing spatial distribution of hundreds of metabolites.
• Achieving close to single-cell resolution for detailed tissue analysis.

Main Results:

• MSI provides unprecedented insights into tumor heterogeneity, cancer cell plasticity, and cell-cell communication within the TME.
• Spatial metabolomics is generating significant knowledge in fundamental cancer research.
• Emerging applications include assessing spatial drug distribution and rapid pathology during surgery.

Conclusions:

• MSI is a powerful tool revolutionizing cancer metabolomics research.
• Its ability to provide spatial metabolic information is crucial for understanding complex biological processes.
• Future developments are needed to further enhance its clinical utility and broaden its applications.