Nerve growth factor-induced reduction in epidermal growth factor responsiveness and epidermal growth factor receptors in PC12 cells: an aspect of cell differentiation. |
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Authors: | K R Huff G Guroff |
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Institution: | Section on Intermediary Metabolism Laboratory of Developmental Neurobiology National Institute of Child Health and Human Development National Institutes of Health Bethesda, MD 20205 USA |
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Abstract: | The rat pheochromocytoma clone PC12 responds to nerve growth factor through the expression of a number of differentiated neuronal properties. One of the most rapid changes is a large, transient increase in the activity of ornithine decarboxylase. These cells also show an increase in ornithine decarboxylase activity in response to the mitogen, epidermal growth factor, but do not respond morphologically as they do to nerve growth factor. Specific, high-affinity epidermal growth factor receptors are present on the cells. When the cells are differentiated with nerve growth factor, the response to epidermal growth factor is markedly diminished and there is a marked reduction in the binding of epidermal growth factor to the cells. |
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Keywords: | NGF nerve growth factor EGF epidermal growth factor ODC ornithine decarboxylase |
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