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Difference in motile behavior between lymphoma variants with different invasive and metastatic capabilities
H Verschueren1, D Dekegel, P De Baetselier
1Pasteur Instituut van Brabant, Brussel, Belgium.
Invasion & Metastasis
|January 1, 1988
Summary
Metastatic tumor cells exhibit enhanced motility and invasion compared to nonmetastatic variants. This difference in cell behavior is crucial for tumor cell extravasation and subsequent disseminated tumor formation.
Area of Science:
- Cancer Biology
- Cellular Motility
- Metastasis Research
Background:
- Tumor cell metastasis is a complex process involving cell motility and invasion.
- Understanding the differences in behavior between metastatic and nonmetastatic cancer cells is crucial for developing effective therapies.
Purpose of the Study:
- To analyze and quantify the motile behavior of two tumor cell variants with differing metastatic capabilities.
- To investigate the relationship between cell motility, invasion, and metastatic potential in a murine lymphosarcoma model.
Main Methods:
- Quantitative assays were used to assess cell translocation, shape modification, and pseudopodal activity.
- In vitro monolayer invasion assays were performed using fibroblastic cell layers to evaluate invasion capabilities.
Main Results:
- Metastatic BW 5147 lymphosarcoma cells demonstrated significantly higher motility, including intense pseudopodal activity and positional shifts.
- Metastatic cells successfully penetrated the fibroblastic monolayer, while nonmetastatic cells were unable to invade.
- A significant difference in motile behavior and invasion was observed between the two cell variants.
Conclusions:
- Differences in cell motility are directly linked to the invasive potency of tumor cell variants.
- Cell motility is a key discriminating factor in disseminated tumor formation following intravenous injection, as demonstrated in this in vitro model.