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Epidermal Growth Factor in Synaptosomal Fractions of Mouse Cerebral Cortex

Epidermal Growth Factor in Synaptosomal Fractions of Mouse Cerebral Cortex Abstract: Using a specific and sensitive epidermal growth factor radioimmunoassay (EGF‐RIA) we measured EGF concentrations in whole brain, cerebral cortex, and cerebral cortical synaptosomal (pinched‐off presynaptic nerve terminals) fractions of 26‐day‐old mouse brain. The relative EGF concentration in synaptosomal fractions was significantly greater than the growth factor concentrations in whole brain or cerebral cortex. Intracerebral injection, in an amount of EGF, several‐fold greater than whole brain EGF content, did not appreciably increase synaptosomal EGF concentration, suggesting that no artifact was involved. The high synaptosomal EGF content suggests a neurotransmitter or a neuromodulator role for EGF in the CNS. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Neurochemistry Wiley

Epidermal Growth Factor in Synaptosomal Fractions of Mouse Cerebral Cortex

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References (39)

Publisher
Wiley
Copyright
Copyright © 1986 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0022-3042
eISSN
1471-4159
DOI
10.1111/j.1471-4159.1986.tb00621.x
Publisher site
See Article on Publisher Site

Abstract

Abstract: Using a specific and sensitive epidermal growth factor radioimmunoassay (EGF‐RIA) we measured EGF concentrations in whole brain, cerebral cortex, and cerebral cortical synaptosomal (pinched‐off presynaptic nerve terminals) fractions of 26‐day‐old mouse brain. The relative EGF concentration in synaptosomal fractions was significantly greater than the growth factor concentrations in whole brain or cerebral cortex. Intracerebral injection, in an amount of EGF, several‐fold greater than whole brain EGF content, did not appreciably increase synaptosomal EGF concentration, suggesting that no artifact was involved. The high synaptosomal EGF content suggests a neurotransmitter or a neuromodulator role for EGF in the CNS.

Journal

Journal of NeurochemistryWiley

Published: Apr 1, 1986

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