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NCAM: a surface marker for human small cell lung cancer cells
M C Aletsee-Ufrecht1, K Langley, M Rotsch
1Abteilung Anatomie und Zellbiologie, Universität Ulm, FRG.
FEBS Letters
|July 16, 1990
Summary
Neural cell adhesion molecule (NCAM) is highly expressed on small cell lung cancer cells. This specific expression of NCAM 140 suggests its potential as a diagnostic marker for lung cancer.
Area of Science:
- Oncology
- Cell Biology
- Biochemistry
Background:
- Lung cancer diagnosis relies on identifying specific cellular markers.
- Neural cell adhesion molecule (NCAM) is involved in cell-cell interactions and has been investigated in various cancers.
Purpose of the Study:
- To investigate the expression of NCAM in human lung cancer cell lines.
- To evaluate the potential of NCAM as a diagnostic marker for small cell lung cancer.
Main Methods:
- Immunocytochemical and immunochemical techniques were employed.
- Analysis included light and electron microscopy, and immunoblotting.
- NCAM expression was assessed in various human lung cancer cell lines.
Main Results:
- Intense surface staining for NCAM was observed on small cell lung cancer cells.
- NCAM 140 was detected in small cell lung cancer and some large cell cancer lines, but not in adenocarcinoma, squamous cell cancer, or mesothelioma.
- Neuron-specific enolase and synaptophysin were also detected, but with different expression patterns.
Conclusions:
- Specific expression of NCAM 140 in small cell and large cell lung carcinomas.
- NCAM 140 shows potential as a valuable diagnostic marker for specific types of lung cancer.