Epidermal growth factor-stimulated production of esterified 13(S)-hydroxyoctadecadienoic acid is associated with tumor suppressor phenotype in Syrian hamster embryo fibroblasts.

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Epidermal growth factor-stimulated production of esterified 13(S)-hydroxyoctadecadienoic acid is associated with tumor suppressor phenotype in Syrian hamster embryo fibroblasts.

Epidermal growth factor (EGF) stimulates the lipoxygenase metabolism of linoleic acid to 13(S)-hydroxyoctadecadienoic acid (HODE) in Syrian hamster embryo (SHE) fibroblasts. 13(S)-HODE is a potent and specific enhancer of EGF-dependent DNA synthesis in normal phenotypic SHE cells (supB+), but is inactive in variant SHE cells that have lost tumor suppressor gene function (supB-). EGF activation ...

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Selective reduction in receptors for epidermal growth factor-urogastrone in chemically transformed tumorigenic Syrian hamster embryo fibroblasts.

Receptors for insulin and epidermal growth factor-urogastrone (EGF-URO) have been measured in Syrian hamster em bryo fibroblasts and in a benzo(a)pyrene-transformed tumorigenie cell line (BP6T). Compared with the parent Syrian ham ster embryo cells, the BP6T cells exhibit a marked reduction in the binding of EGF-URO, whereas the binding of insulin is the same in both cell types. The selective r...

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Multistep change in epidermal growth factor receptors during spontaneous neoplastic progression in Chinese hamster embryo fibroblasts.

Whole Chinese hamster embryo lineages have been shown to undergo multistep spontaneous neoplastic progression during serial passage in culture. We have studied the binding, internalization, and degradation of 125I-labeled epidermal growth factor at four different stages of transformation. The whole Chinese hamster embryo cells lost cell surface epidermal growth factor receptors gradually during...

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Platelet-derived growth factor-stimulated migration of murine fibroblasts is associated with epidermal growth factor receptor expression and tyrosine phosphorylation.

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Differential proliferative responses of Syrian hamster embryo fibroblasts to paraquat-generated superoxide radicals depending on tumor suppressor gene function.

Oxygen radicals have been widely implicated in neoplastic transformation; however, little is known regarding their mode of action. In an attempt to delineate potential mechanisms of action, an analysis of superoxide effects on cell growth was studied in normal and two nontumorigenic, immortal cell lines derived from normal Syrian hamster embryo (SHE) fibroblasts. The two immortal cell lines dif...

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ژورنال

عنوان ژورنال: Journal of Lipid Research

سال: 1997

ISSN: 0022-2275

DOI: 10.1016/s0022-2275(20)37274-6