Vinblastine, Vincristine and Vindesine: anti-invasive effect on MO4 mouse fibrosarcoma cells in vitro.

Abstract

Inhibition of the invasiveness of MO4 mouse fibrosarcoma cells by the vinca alkaloid, vinblastine (VLB), vincristine (VCR) and vindesine (VDS), has been examined in vitro. At doses between 0.006 microgram/ml (minimal effect) and 0.1 microgram/ml (complete inhibition) these drugs interfered with the invasion of MO4 cells from an aggregate confronting a fragment of embryonic chick heart in three-dimensional culture. We have also examined the effect of these drugs on the following activities of MO4 cells: growth, directional migration and assembly of the cytoplasmic microtubule complex. Growth and directional migration were affected by the same doses of vinca alkaloids as invasion. In contrast with the vinca alkaloids, 5-fluorouracil at 1 microgram/ml inhibited growth but allowed directional migration and invasion. At a dose of 0.3 microgram/ml VLB, VCR and VDS interfered with the assembly of cytoplasmic microtubules, as visible after immunocytochemical staining with tubulin antiserum. Ultrastructural analysis demonstrated that inhibition of invasion in three-dimensional culture corresponds with abolishment of the cytoplasmic microtubule complex. Anti-invasive concentrations of VLB, VCR and VDS represent clinically achievable plasma concentrations. We concluded that the anti-invasive effect of the vinca alkaloids may contribute to their antitumor activity.

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@article{Mareel1982VinblastineVA, title={Vinblastine, Vincristine and Vindesine: anti-invasive effect on MO4 mouse fibrosarcoma cells in vitro.}, author={Marc M. K. Mareel and Guy A. Storme and Georges K P de Bruyne and R M Van Cauwenberge}, journal={European journal of cancer & clinical oncology}, year={1982}, volume={18 2}, pages={199-210} }