Correlation of tumor metastasis with sterol carrier protein and plasma membrane sterol levels. Academic Article uri icon


  • Squalene and sterol carrier protein (SCP) levels and sterol/phospholipid molar ratios of whole cells and plasma membranes were measured in cultured primary tumor and metastatic cell lines. SCP is abundant in all cell lines. However, metastatic lines have significantly lower SCP levels and plasma membrane sterol/phospholipid ratios than do primary lines. The results indicate that extremely malignant, metastatic cells are unable to produce or maintain adequate levels of both SCP and plasma membrane sterols when grown in lipoprotein deficient media. This defect, in vivo, probably causes excess uptake of SCP and lipid.

published proceedings

  • Biochem Biophys Res Commun

author list (cited authors)

  • Schroeder, F., Kier, A. B., Olson, C. D., & Dempsey, M. E.

citation count

  • 16

complete list of authors

  • Schroeder, F||Kier, AB||Olson, CD||Dempsey, ME

publication date

  • January 1984