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  1. Home
  3. Tof-sims Imaging Reveals Changes In Tumor Cell Lipids During Metastatic Progression Of Melanoma.
  1. Home
  3. Tof-sims Imaging Reveals Changes In Tumor Cell Lipids During Metastatic Progression Of Melanoma.

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ToF-SIMS imaging reveals changes in tumor cell lipids during metastatic progression of melanoma.

Noora Neittaanmäki1,2, Oscar Zaar3,4, Kevin Sjögren Cehajic5

  • 1Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Pigment Cell & Melanoma Research
|June 29, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Melanoma progression involves metabolic changes. Spatial lipidomics revealed distinct lipid profiles in metastatic melanomas, offering potential biomarkers for tumor progression and treatment targets.

Keywords:
chemical imaginglipidomicsmelanomametastatic progressiontime‐of‐flight imaging secondary ion mass spectrometry

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Area of Science:

  • Oncology
  • Biochemistry
  • Dermatology

Background:

  • Melanoma metastasis involves complex metabolic shifts.
  • Understanding these changes is crucial for effective treatment.
  • Spatial lipidomics offers a novel approach to study tumor microenvironments.

Purpose of the Study:

  • To investigate molecular characteristics of melanoma progression using spatial lipidomics.
  • To identify lipidomic differences between primary and metastatic melanomas.
  • To explore lipid signatures associated with different metastatic routes.

Main Methods:

  • Analysis of 10 melanoma patient samples (in situ, primary, metastatic) and 4 healthy skin controls.
  • Utilized time-of-flight imaging secondary ion mass spectrometry (ToF-SIMS) for spatial lipidomics.
  • Correlated lipidomic data with histopathological analysis of H&E-stained sections.

Main Results:

  • Significant lipid profile differences observed between primary and metastatic melanomas.
  • Increased phosphatidylethanolamine and GM3 gangliosides in metastatic samples.
  • Specific phospholipids and GM3 ganglioside chain lengths differentiated metastatic routes.

Conclusions:

  • Spatial lipidomics provides new insights into melanoma metastatic progression.
  • Identified lipidomic alterations may serve as novel biomarkers for melanoma progression.
  • Lipid profiles could aid in differentiating primary from metastatic melanoma and guide novel therapeutic strategies.