Cascades of homeostatic dysregulation promote incubation of cocaine craving

Junshi Wang, Masago Ishikawa, Yue Yang, Mami Otaka, James Y. Kim, George R. Gardner, Michael T. Stefanik, Mike Milovanovic, Yanhua H. Huang, Johannes W. Hell, Marina Wolf, Oliver M. Schlüter, Yan Dong

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In human drug users, cue-induced drug craving progressively intensifies after drug abstinence, promoting drug relapse. This time-dependent progression of drug craving is recapitulated in rodent models, in which rats exhibit progressive intensification of cue-induced drug seeking after withdrawal from drug self-administration, a phenomenon termed incubation of drug craving. Although recent results suggest that functional alterations of the nucleus accumbens (NAc) contribute to incubation of drug craving, it remains poorly understood how NAc function evolves after drug withdrawal to progressively intensify drug seeking. The functional output of NAc relies on how the membrane excitability of its principal medium spiny neurons (MSNs) translates excitatory synaptic inputs into action potential firing. Here, we report a synapse-membrane homeostatic crosstalk (SMHC) in male rats, through which an increase or decrease in the excitatory synaptic strength induces a homeostatic decrease or increase in the intrinsic membrane excitability of NAc MSNs, and vice versa. After short-term withdrawal from cocaine self-administration, despite no actual change in the AMPA receptor-mediated excitatory synaptic strength, GluN2B NMDA receptors, the SMHC sensors of synaptic strength, are upregulated. This may create false SMHC signals, leading to a decrease in the membrane excitability of NAc MSNs. The decreased membrane excitability subsequently induces another round of SMHC, leading to synaptic accumulation of calcium-permeable AMPA receptors and upregulation of excitatory synaptic strength after long-term withdrawal from cocaine. Disrupting SMHC-based dysregulation cascades after cocaine exposure prevents incubation of cocaine craving. Thus, cocaine triggers cascades of SMHC-based dysregulation in NAc MSNs, promoting incubated cocaine seeking after drug withdrawal.

Original languageEnglish (US)
Pages (from-to)4316-4328
Number of pages13
JournalJournal of Neuroscience
Volume38
Issue number18
DOIs
StatePublished - May 2 2018
Externally publishedYes

Fingerprint

Cocaine
Nucleus Accumbens
Membranes
Synapses
Pharmaceutical Preparations
Neurons
Self Administration
AMPA Receptors
Cues
Craving
Drug Users
N-Methyl-D-Aspartate Receptors
Action Potentials
Rodentia
Up-Regulation
Calcium
Recurrence

Keywords

  • Cocaine
  • Excitatory synapse
  • Homeostatic plasticity
  • Incubation
  • Membrane excitability
  • Nucleus accumbens

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Wang, J., Ishikawa, M., Yang, Y., Otaka, M., Kim, J. Y., Gardner, G. R., ... Dong, Y. (2018). Cascades of homeostatic dysregulation promote incubation of cocaine craving. Journal of Neuroscience, 38(18), 4316-4328. https://doi.org/10.1523/JNEUROSCI.3291-17.2018

Cascades of homeostatic dysregulation promote incubation of cocaine craving. / Wang, Junshi; Ishikawa, Masago; Yang, Yue; Otaka, Mami; Kim, James Y.; Gardner, George R.; Stefanik, Michael T.; Milovanovic, Mike; Huang, Yanhua H.; Hell, Johannes W.; Wolf, Marina; Schlüter, Oliver M.; Dong, Yan.

In: Journal of Neuroscience, Vol. 38, No. 18, 02.05.2018, p. 4316-4328.

Research output: Contribution to journalArticle

Wang, J, Ishikawa, M, Yang, Y, Otaka, M, Kim, JY, Gardner, GR, Stefanik, MT, Milovanovic, M, Huang, YH, Hell, JW, Wolf, M, Schlüter, OM & Dong, Y 2018, 'Cascades of homeostatic dysregulation promote incubation of cocaine craving', Journal of Neuroscience, vol. 38, no. 18, pp. 4316-4328. https://doi.org/10.1523/JNEUROSCI.3291-17.2018
Wang J, Ishikawa M, Yang Y, Otaka M, Kim JY, Gardner GR et al. Cascades of homeostatic dysregulation promote incubation of cocaine craving. Journal of Neuroscience. 2018 May 2;38(18):4316-4328. https://doi.org/10.1523/JNEUROSCI.3291-17.2018
Wang, Junshi ; Ishikawa, Masago ; Yang, Yue ; Otaka, Mami ; Kim, James Y. ; Gardner, George R. ; Stefanik, Michael T. ; Milovanovic, Mike ; Huang, Yanhua H. ; Hell, Johannes W. ; Wolf, Marina ; Schlüter, Oliver M. ; Dong, Yan. / Cascades of homeostatic dysregulation promote incubation of cocaine craving. In: Journal of Neuroscience. 2018 ; Vol. 38, No. 18. pp. 4316-4328.
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