Ultrastructural morphology of three-dimensional colonies of cells derived from a hepatocellular carcinoma.
Allen, Terence D Iype, P
Allen, Terence D
Iype, P
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Abstract
Cultured hepatocellular carcinoma cells were studied during anchorage-independent growth in semi solid medium (Methocel). The regular occurrence of mitotic figures both at the surface and within the colonies precludes the possibility of such colonies being formed by re-aggregation. The estimated population doubling time in the three-dimensional (3-D) colonies is consistent with those two-dimensional of (2-D) colonies. Structures resembling bile canaliculi were observed between the closely opposed membranes from the well packed adjacent cells. Cell surface and ultrastructural features of the colonies and individual cells are presented and comparisons made with 2-D growth of normal and malignant liver cells in vitro. The formation of 3-D colonies may not only be an assay for transformed cells but also for predicting the type of tumors produced by re-innoculation of the in vitro transformed cells.
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1979
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Ultrastructural morphology of three-dimensional colonies of cells derived from a hepatocellular carcinoma. 1979, 95 (3):225-32 J Cancer Res Clin Oncol