Human fibroblasts (KMST-6/RAS cell line) transformed with 60Co gamma-rays and c-Ha-ras oncogene produce a large amount of granulocyte colony-stimulating factor (G-CSF); production is enhanced by cAMP, theophylline, and butyrate.

Abstract

Human fibroblasts (KMST-6/RAS cell line), which was malignantly transformed in vitro with 60Co gamma-rays and the c-Ha-ras oncogene, produced a large amount of granulocyte colony-stimulating factor (G-CSF). The production was greater during the logarithmic growth phase than during the stationary phase. cAMP and theophylline, alone or in combination, and… (More)

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