Mass Spectrometry Imaging of 3D Tissue Models

Area of Science:

• Biotechnology
• Pharmacology
• Analytical Chemistry

Background:

• Three-dimensional (3D) cell cultures and organoids are advanced in vitro models mimicking in vivo tissues.
• Increasing ethical, economic, and societal concerns drive the need for alternatives to animal testing in research.
• 3D cell culture and organoids are poised for greater use in early-stage drug development studies.

Purpose of the Study:

• To discuss the integration of 3D cell culture and organoid models with mass spectrometry imaging.
• To highlight the successes and challenges of this combined methodology for drug research.

Main Methods:

• Utilizing 3D cell culture and organoid models as advanced tissue representations.
• Applying mass spectrometry imaging (MSI) as a label-free analytical technique.
• Investigating drug absorption, penetration, efficacy, toxicity, and biotransformation within these 3D models.

Main Results:

• Mass spectrometry imaging provides label-free analysis of drug disposition and effects in 3D tissue models.
• Successful applications demonstrate the potential for studying drug absorption, efficacy, and toxicity.
• Challenges remain in wider adoption, requiring further technological and methodological advancements.

Conclusions:

• The combination of 3D cell culture/organoids and mass spectrometry imaging is a powerful, label-free approach for drug research.
• This integrated methodology offers significant advantages over traditional methods, particularly in early drug development.
• Overcoming current challenges will facilitate broader implementation and accelerate drug discovery and safety assessment.