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Elastosis and cancer

W Lohmann1, W B Schill, D Bucher

  • 1Institut für Biophysik, Justus-Liebig-Universität, Giessen.

Zeitschrift Fur Naturforschung. C, Journal of Biosciences
|March 1, 1994
PubMed
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Autofluorescence analysis reveals distinct patterns around malignant tumors. High fluorescence intensity, identified as elastic fibers, is observed outside melanomas, differentiating them from healthy tissue.

Area of Science:

  • Biomedical Optics
  • Dermatopathology
  • Cancer Research

Background:

  • Autofluorescence properties of tissues can vary between healthy and malignant states.
  • Previous research indicated differences in autofluorescence near tumors when excited at 365 nm.

Purpose of the Study:

  • To investigate the nature of structures exhibiting high autofluorescence outside malignant tumors.
  • To determine if these structures can serve as a biomarker for melanoma detection.

Main Methods:

  • Analysis of unfixed, unstained skin cryosections from melanoma patients.
  • Excitation of tissue samples at 365 nm to observe autofluorescence.
  • Utilizing polarized light microscopy to characterize the identified structures.
  • Comparative studies with arterial walls to confirm fiber identity.

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Main Results:

  • Malignant tumors showed either small or large autofluorescence compared to healthy tissue at 365 nm excitation.
  • Bulky, fiber-like structures with high fluorescence intensity were consistently found just outside melanoma.
  • Polarized light microscopy identified these structures as elastic fibers.
  • Elastic fibers were also observed in arterial walls, confirming their nature.

Conclusions:

  • High autofluorescence from elastic fibers located outside malignant tumors can be a distinguishing feature.
  • Elastic fibers may play a role in the microenvironment of melanomas.
  • Autofluorescence imaging of elastic fibers shows potential for melanoma diagnosis and research.