MuSK expressed in the brain mediates cholinergic responses, synaptic plasticity, and memory formation

Ana Garcia-Osta, Panayiotis Tsokas, Gabriella Pollonini, Emmanuel M. Landau, Robert Blitzer, Cristina Alberini

Research output: Contribution to journalArticle

Abstract

Muscle-specific tyrosine kinase receptor (MuSK) has been believed to be mainly expressed and functional in muscle, in which it mediates the formation of neuromuscular junctions. Here we show that MuSK is expressed in the brain, particularly in neurons, as well as in non-neuronal tissues. We also provide evidence that MuSK expression in the hippocampus is required for memory consolidation, because temporally restricted knockdown after training impairs memory retention. Hippocampal disruption of MuSK also prevents the learning-dependent induction of both cAMP response element binding protein (CREB) phosphorylation and CCAAT enhancer binding protein β (C/EBPβ) expression, suggesting that the role of MuSK during memory consolidation critically involves the CREB-C/EBP pathway. Furthermore, we found that MuSK also plays an important role in mediating hippocampal oscillatory activity in the theta frequency as well as in the induction and maintenance of long-term potentiation, two synaptic responses that correlate with memory formation. We conclude that MuSK plays an important role in brain functions, including memory formation. Therefore, its expression and role are broader than what was believed previously.

Original languageEnglish (US)
Pages (from-to)7919-7932
Number of pages14
JournalJournal of Neuroscience
Volume26
Issue number30
DOIs
StatePublished - Jul 26 2006

Fingerprint

Neuronal Plasticity
Receptor Protein-Tyrosine Kinases
Cholinergic Agents
Muscles
Brain
CCAAT-Enhancer-Binding Proteins
Cyclic AMP Response Element-Binding Protein
Learning
Long-Term Potentiation
Neuromuscular Junction
Hippocampus
Phosphorylation
Neurons

Keywords

  • Brain
  • C/EBP
  • Long-term plasticity
  • Memory
  • MuSK
  • Oscillatory response

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

MuSK expressed in the brain mediates cholinergic responses, synaptic plasticity, and memory formation. / Garcia-Osta, Ana; Tsokas, Panayiotis; Pollonini, Gabriella; Landau, Emmanuel M.; Blitzer, Robert; Alberini, Cristina.

In: Journal of Neuroscience, Vol. 26, No. 30, 26.07.2006, p. 7919-7932.

Research output: Contribution to journalArticle

Garcia-Osta, Ana ; Tsokas, Panayiotis ; Pollonini, Gabriella ; Landau, Emmanuel M. ; Blitzer, Robert ; Alberini, Cristina. / MuSK expressed in the brain mediates cholinergic responses, synaptic plasticity, and memory formation. In: Journal of Neuroscience. 2006 ; Vol. 26, No. 30. pp. 7919-7932.
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