Dec 1, 1988

Vitronectin production by human yolk sac carcinoma cells resembling parietal endoderm

Development
S Cooper, M F Pera

Abstract

Normal mesenchymal cells, normal epithelial cells and many transformed epithelial cells require serum attachment factors and extracellular matrix proteins for growth and differentiation in vitro, and recent evidence strongly supports a role for extracellular matrix molecules in the regulation of cell movement in vivo during early embryogenesis. We previously described the isolation and characterization of cell lines representative of three types of stem cells most commonly found in human adult testicular teratomas, namely embryonal carcinoma cells, yolk sac carcinoma cells resembling visceral endoderm and yolk sac carcinoma cells resembling parietal endoderm (endodermal sinus tumour cells). Of these three cell types, only endodermal sinus tumour cells, which show particularly malignant behaviour in vivo, have no serum requirement for attachment and growth in vitro. Supernatants from endodermal sinus tumour cells support the attachment of embryonal carcinoma cells in serum-free medium. We demonstrate here that endodermal sinus tumour cells, but not other cell types isolated from testicular teratomas, secrete the serum attachment protein, vitronectin (also known as serum-spreading factor, S-protein or epibolin), as well as fibron...Continue Reading

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Mentioned in this Paper

Endoderm
VTN
Cell Motility
Squamous Transitional Epithelial Cell Count
Ovarian Neoplasm
Extracellular Matrix
Collagen Type IV
F9 Teratocarcinoma Stem Cells
Embryonic Development
Embryonal Carcinoma

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