Elsevier

Brain Research

Volume 749, Issue 1, 21 February 1997, Pages 120-126
Brain Research

Research report
Enhanced CREB phosphorylation and changes in c-Fos and FRA expression in striatum accompany amphetamine sensitization

https://doi.org/10.1016/S0006-8993(96)01316-9Get rights and content

Abstract

Expression in striatum of c-Fos, a 35 kDa Fos-related antigen (FRA) and the phosphorylated form of cyclic AMP response element binding protein (phosphoCREB) was assessed using Western blots in rats that developed behavioral sensitization following repeated amphetamine administration. Treatment with d-amphetamine (5 mg/kg) for 5 consecutive days produced behavioral sensitization. Similar to previous observations using chronic cocaine administration, amphetamine sensitized animals had decreased c-Fos and increased FRA proteins in striatum. Supershift analysis with antisera to c-Fos and FRA proteins demonstrated that c-Fos and the 35 kDa FRA are components of the striatal AP-1 binding complex from sensitized rats. Thus, amphetamine sensitization is accompanied by alterations in the composition of the AP-1 DNA binding complex. An increased amount of phosphoCREB protein was also present in the striatum of amphetamine sensitized rats. These results suggest that alterations in Fos, FRA and CREB transcription factors are common neuronal responses to chronic psychostimulant administration and may contribute to regulation of genes important to the neuroplastic changes underlying psychostimulant sensitization.

References (45)

  • Y.L. Hurd et al.

    Cocaine reinforcement and extracellular dopamine overflow: an in vivo microdialysis study

    Brain Res.

    (1989)
  • M. Jaber et al.

    Acute and chronic amphetamine treatments differentially regulate neuropeptide messenger RNA levels and Fos immunoreactivity in rat striatal neurons

    Neuroscience

    (1995)
  • R. Karler et al.

    DNQX blockade of amphetamine behavioral sensitization

    Brain Res.

    (1991)
  • G.F. Koob

    Drugs of abuse: anatomy, pharmacology and function of reward pathways

    Trends Pharmacol. Sci.

    (1992)
  • M.R. Montminy et al.

    Regulation of cAMP-inducible genes by CREB

    Trends Neurosci.

    (1990)
  • E.R. Nestler et al.

    Drug addiction: a model for the molecular basis of neural plasticity

    Neuron

    (1993)
  • T. Ohmori et al.

    Competitive and noncompetitive NMDA antagonists block sensitization to methamphetamine

    Pharmacol. Biochem. Behav.

    (1994)
  • A.M. Persico et al.

    Brain transcription factor expression: effects of acute and chronic amphetamine and injection stress

    Mol. Brain Res.

    (1993)
  • P.V. Piazza et al.

    Stress- and pharmacologically-induced behavioral sensitization increases vulnerability to acquisition of amphetamine self-administration

    Brain Res.

    (1990)
  • T.E. Robinson et al.

    Enduring changes in brain and behavior produced by chronic amphetamine administration: a review and evaluation of animal models of amphetamine psychosis

    Brain Res. Rev.

    (1986)
  • T.E. Robinson et al.

    The neural basis of drug craving: an incentive-sensitization theory of addiction

    Brain Res. Rev.

    (1993)
  • T.E. Robinson et al.

    Persistent sensitization of dopamine neurotransmission in ventral striatum (nucleus accumbens) produced by prior experience with (+)-amphetamine: a microdialysis study in freely moving rats

    Brain Res.

    (1988)
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    1

    Present address: Department of Psychology, Amherst College, Amherst, MA 01002, USA.

    2

    Present address: Department of Psychology, Brown University, Box 1853, Providence, RI 02912, USA.

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