Regulation of ΔFosB and FosB-like proteins by electroconvulsive seizure and cocaine treatments

J. Chen, H. E. Nye, M. B. Kelz, Noboru Hiroi, Y. Nakabeppu, B. T. Hope, E. J. Nestler

Research output: Contribution to journalArticle

125 Citations (Scopus)

Abstract

Previous work has shown that c-Fos and several Fos-like proteins or Fras (Fos-related antigens) are induced acutely in brain in response to a wide variety of stimuli. In contrast, several stimuli induce apparently distinct Fos-like proteins, termed chronic Fras, after chronic administration. We show that ΔFosB, a truncated splice variant of FosB, responds like the other acute Fras: it is induced rapidly and transiently in cerebral cortex after acute electroconvulsive seizure (ECS) and in striatum after acute cocaine but does not accumulate after chronic ECS or cocaine treatment. Although the chronic Fras are immunochemically related to ΔFosB, they can be distinguished from ΔFosB based on their temporal properties in that they are induced after chronic ECS and cocaine treatments only. Moreover, the chronic Fras and ΔFosB can be distinguished by their migration patterns on one- and two-dimensional gel electrophoresis. The chronic Fras, therefore, appear to be novel FosB-related proteins. We also provide evidence that the chronic Fras heterodimerize primarily with Jun-D and Jun-B, as opposed to c-Jun. The possibility that AP-1 complexes containing the chronic Fras function as negative regulators of AP-1 mediated transcription is discussed.

Original languageEnglish (US)
Pages (from-to)880-889
Number of pages10
JournalMolecular Pharmacology
Volume48
Issue number5
StatePublished - 1995
Externally publishedYes

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Proto-Oncogene Proteins c-fos
Cocaine
Seizures
Proteins
Transcription Factor AP-1
Electrophoresis, Gel, Two-Dimensional
Cerebral Cortex

ASJC Scopus subject areas

  • Pharmacology

Cite this

Chen, J., Nye, H. E., Kelz, M. B., Hiroi, N., Nakabeppu, Y., Hope, B. T., & Nestler, E. J. (1995). Regulation of ΔFosB and FosB-like proteins by electroconvulsive seizure and cocaine treatments. Molecular Pharmacology, 48(5), 880-889.

Regulation of ΔFosB and FosB-like proteins by electroconvulsive seizure and cocaine treatments. / Chen, J.; Nye, H. E.; Kelz, M. B.; Hiroi, Noboru; Nakabeppu, Y.; Hope, B. T.; Nestler, E. J.

In: Molecular Pharmacology, Vol. 48, No. 5, 1995, p. 880-889.

Research output: Contribution to journalArticle

Chen, J, Nye, HE, Kelz, MB, Hiroi, N, Nakabeppu, Y, Hope, BT & Nestler, EJ 1995, 'Regulation of ΔFosB and FosB-like proteins by electroconvulsive seizure and cocaine treatments', Molecular Pharmacology, vol. 48, no. 5, pp. 880-889.
Chen, J. ; Nye, H. E. ; Kelz, M. B. ; Hiroi, Noboru ; Nakabeppu, Y. ; Hope, B. T. ; Nestler, E. J. / Regulation of ΔFosB and FosB-like proteins by electroconvulsive seizure and cocaine treatments. In: Molecular Pharmacology. 1995 ; Vol. 48, No. 5. pp. 880-889.
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