Clinical & Experimental Metastasis

, Volume 7, Issue 3, pp 283–300

The flavonoid tangeretin inhibits invasion of MO4 mouse cells into embryonic chick heartin vitro

  • Marc E. Bracke
  • Barbara M. Vyncke
  • Nicolas A. Van Larebeke
  • Erik A. Bruyneel
  • Georges K. De Bruyne
  • Guido H. De Pestel
  • Walter J. De Coster
  • Marc F. Espeel
  • Marc M. Mareel
Article

DOI: 10.1007/BF01753681

Cite this article as:
Bracke, M.E., Vyncke, B.M., Van Larebeke, N.A. et al. Clin Exp Metast (1989) 7: 283. doi:10.1007/BF01753681

Abstract

Tangeretin, a flavonoid from citrus plants, was found to inhibit the invasion of MO4 cells (Kirsten murine sarcoma virus transformed fetal mouse cells) into embryonic chick heart fragmentsin vitro. The flavonoid appeared to be chemically stable in tissue culture medium, and the anti-invasive effect was reversible on omission of the molecule from the medium. Unlike (+)-catechin, another anti-invasive flavonoid, tangeretin bound poorly to extracellular matrix. It did not alter fucosylated surface glycopeptides of MO4 cells. Tangeretin seemed not to act as a microtubule inhibitor, as immunocytochemistry revealed no disturbance of the cytoplasmic microtubule complex. However, at antiinvasive concentrations of tangeretin, cell proliferation and thymidine incorporation appeared to be inhibited. When cultured on an artificial substrate, treated MO4 cells were less elongated, covered a larger surface area and exhibited a slower directional migration than untreated cells. From the decrease in ATP content in MO4 cells after tangeretin treatment, we deduce that this flavonoid inhibits a number of intracellular processes, which leads to an inhibition of cell motility and hence of invasion.

Copyright information

© Taylor & Francis Ltd. 1989

Authors and Affiliations

  • Marc E. Bracke
    • 1
  • Barbara M. Vyncke
    • 1
  • Nicolas A. Van Larebeke
    • 1
  • Erik A. Bruyneel
    • 1
  • Georges K. De Bruyne
    • 1
  • Guido H. De Pestel
    • 2
  • Walter J. De Coster
    • 3
  • Marc F. Espeel
    • 2
  • Marc M. Mareel
    • 1
  1. 1.Laboratory of Experimental Cancerology, Department of Radiotherapy and Nuclear MedicineUniversity HospitalGentBelgium
  2. 2.Laboratory of EmbryologyState University of GentGentBelgium
  3. 3.Center for Image Analysis (CEBAN)State University of GentGentBelgium