Superinduction of c- <i>fos</i> by Nerve Growth Factor in the Presence of Peripherally Active Benzodiazepines

  • Tom Curran
    Department of Molecular Oncology and Developmental Biology, Hoffmann-La Roche, Inc., Nutley, New Jersey 07110
  • James I. Morgan
    Department of Physiological Chemistry and Pharmacology, Roche Institute of Molecular Biology, Roche Research Center, Nutley, New Jersey 07110

抄録

<jats:p> Alterations in proto-oncogene expression after stimulation of rat pheochromocytoma (PC12) cells by nerve growth factor (NGF) have been investigated. A specific stimulation of c- <jats:italic>fos</jats:italic> messenger RNA and protein was detected 30 minutes after treatment. This induction was enhanced more than 100-fold in the presence of peripherally active benzodiazepines. The effect was specific as very little change was observed in the levels of c- <jats:italic>ras</jats:italic> <jats:sup>Ha</jats:sup> , c- <jats:italic>ras</jats:italic> <jats:sup>Ki</jats:sup> , c- <jats:italic>myc</jats:italic> , and N- <jats:italic>myc</jats:italic> messenger RNA's. Under the conditions used here, NGF treatment ultimately results in neurite outgrowth, with a reduction or cessation of cell division. Thus, stimulation of the c- <jats:italic>fos</jats:italic> gene in this system appeared to be associated with differentiation and not with cellular proliferation. The effect of benzodiazepines was stereospecific and represents a novel action of these compounds at the level of gene expression. </jats:p>

収録刊行物

  • Science

    Science 229 (4719), 1265-1268, 1985-09-20

    American Association for the Advancement of Science (AAAS)

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