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Related Experiment Video

Updated: May 7, 2026

Expanding the Comprehension of the Tumor Microenvironment using Mass Spectrometry Imaging of Formalin-Fixed and Paraffin-Embedded Tissue Samples
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Expanding the Comprehension of the Tumor Microenvironment using Mass Spectrometry Imaging of Formalin-Fixed and Paraffin-Embedded Tissue Samples

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Renopathological Microstructure Visualization from Formalin Fixed Kidney Tissue by Matrix-Assisted Laser/Desorption

S Fröhlich1, B Putz, H Schachner

  • 1Vienna University of Technology, Institute of Chemical Technologies and Analytics, Vienna, Austria.

Balkan Journal of Medical Genetics : BJMG
|September 21, 2013
PubMed
Summary

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This summary is machine-generated.

Mass spectrometry imaging (MSI) aids early detection of kidney disease by analyzing proteins and lipids in ultra-thin kidney tissue. This technique enables micro-structural differentiation for improved nephropathological prescreening.

Area of Science:

  • Nephrology
  • Analytical Chemistry
  • Biochemistry

Background:

  • Early detection of renal malfunctions is crucial for effective nephropathological prescreening and timely intervention.
  • Mass spectrometry imaging (MSI) offers a powerful analytical approach when combined with histopathology for detailed tissue analysis.
  • Understanding glomerular filtration is key to diagnosing early-stage kidney disease.

Purpose of the Study:

  • To investigate the utility of mass spectrometry imaging (MSI) for micro-structural differentiation of rat kidney glomeruli.
  • To assess the compatibility of histological staining and fixation methods with MSI analysis.
  • To evaluate the potential of MSI for early-stage nephropathological prescreening.

Main Methods:

  • Proteomic and lipidomic analyses were performed on ultra-thin tissue sections (500 nm, 1 μm, and 10 μm) of healthy rat kidneys.
Keywords:
Glomerular microstructuresLipidsMatrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry (MS) imagingNephropathyProteins

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  • Standard histological staining and fixation methods, including formalin fixation, were employed.
  • Mass spectrometry imaging was correlated with optical microscopy images of stained tissue sections.

    • Main Results:

    • Lipid and peptide-based differentiation at the glomerular level was achieved using MSI.
    • Ultra-thin tissue samples were compatible with MSI analysis, even after histological staining.
    • Formalin-fixed tissue samples allowed for successful correlation between optical and molecular mass images.

    Conclusions:

    • Mass spectrometry imaging is a viable technique for analyzing proteomic and lipidomic profiles of kidney glomeruli at high resolution.
    • Histological staining and fixation methods are compatible with MSI, enabling correlative studies.
    • This approach holds promise for advancing early-stage nephropathological prescreening and understanding renal disease.