Calcineurin in memory and bidirectional plasticity

https://doi.org/10.1016/j.bbrc.2003.10.046Get rights and content

Abstract

The molecular mechanisms of learning and memory, and the underlying bidirectional changes in synaptic plasticity that sustain them largely implicate protein kinases and phosphatases. Specifically, Ca2+-dependent kinases and phosphatases actively control neuronal processing by forming a tightly regulated balance in which they oppose each other. In this balance, calcineurin (PP2B) is a critical protein phosphatase whose main function is to negatively modulate learning, memory, and plasticity. It acts by dephosphorylating numerous substrates in different neuronal compartments. This review outlines some of CN neuronal targets and their implication in synaptic functions, and describes the role of CN in the acquisition, storage, retrieval, and extinction of memory, as well as in bidirectional plasticity.

Section snippets

CN is present in multiple neuronal compartments

Neuronal cells are very rich in CN and multiple neuronal processes depend on CN activity. CN appears to have distinct functions in various neuronal compartments, in part due to the different nature and abundance of its substrates and regulatory proteins in these compartments. To illustrate the variety and specificity of CN actions in neurons, the following section will describe some of the CN-dependent mechanisms in pre- and postsynaptic terminals, the cytoplasm or the nucleus.

Several phases of learning and memory are regulated by CN

The Ca2+ sensitivity, abundance, multiplicity of substrates, sites of action, and regulation mechanisms of CN in neuronal cells make it a potentially critical player in brain functions. Until recently, its role in learning and memory was not well understood. In the last couple of years, pharmacological and genetic studies have provided new insight into its involvement in signaling pathways that regulate learning and memory.

CN in synaptic transmission and plasticity

Although the requirement for CN in learning and memory is firmly demonstrated, the refined cellular and molecular mechanisms that are recruited by CN are not fully understood. It is recognized that CN can modulate synaptic transmission and plasticity, and thereby influence the efficacy of information processing in brain cells. The section below summarizes the current understanding of this aspect of CN functions.

Conclusion

In addition to the obvious relevance of CN-mediated signaling in learning, memory, and plasticity, many of the molecular pathways and cellular processes regulated by CN in the brain have broad physiological and clinical impact. Thus, CN is associated with many brain disorders including stroke, epilepsy, chronic stress, Alzheimer’s and Huntington’s diseases, amyotrophic lateral sclerosis, dementia, fear disorders, Down syndrome, or schizophrenia. It is therefore of prime importance to better

Acknowledgements

Research in I.M.M. lab is supported by the Swiss Federal Institute of Technology, Swiss National Science Foundation, NCCR Neural Plasticity and Repair, EMBO Young Investigator Program, Roche Research Foundation, Borderline Personality Research Foundation, Human Frontier Science Program, and UBS Bank. Many thanks to Harma Feitsma for help with the bibliography.

References (146)

  • M.M Lai et al.

    The calcineurin-binding protein cain is a negative regulator of synaptic vesicle endocytosis

    J. Biol. Chem.

    (2000)
  • E.M Quinlan et al.

    Postsynaptic mechanisms for bidirectional control of MAP2 phosphorylation by glutamate receptors

    Neuron

    (1996)
  • M Colledge et al.

    Targeting of PKA to glutamate receptors through a MAGUK–AKAP complex

    Neuron

    (2000)
  • D.L Armstrong

    Calcium channels regulation by calcineurin, a Ca2+-activated phosphatase in mammalian brain

    Trends Neurosci.

    (1989)
  • T.C Chen et al.

    Identification of soluble protein phosphatases that dephosphorylate voltage-sensitive sodium channels in rat brain

    J. Biol. Chem.

    (1995)
  • T Kondratyuk et al.

    Depolarization of rat brain synaptosomes increases phosphorylation of voltage-sensitive sodium channels

    J. Biol. Chem.

    (1997)
  • I.M Raman et al.

    Beta-adrenergic regulation of synaptic NMDA receptors by cAMP-dependent protein kinase

    Neuron

    (1996)
  • J.J Krupp et al.

    Calcineurin acts via the C-terminus of NR2A to modulate desensitization of NMDA receptors

    Neuropharmacology

    (2002)
  • J Shi et al.

    Activity-dependent induction of tonic calcineurin activity mediates a rapid developmental downregulation of NMDA receptor currents

    Neuron

    (2000)
  • C.M Norris et al.

    Calcineurin enhances L-type Ca(2+) channel activity in hippocampal neurons: increased effect with age in culture

    Neuroscience

    (2002)
  • A.M Cameron et al.

    Calcineurin associated with the inositol 1,4,5-trisphosphate receptor–FKBP12 complex modulates Ca2+ flux

    Cell

    (1995)
  • A.M Cameron et al.

    FKBP12 binds the inositol 1,4,5-trisphosphate receptor at leucine–proline (1400–1401) and anchors calcineurin to this FK506 domain

    J. Biol. Chem.

    (1997)
  • D Guerini et al.

    Calcineurin controls the expression of isoform 4CII of the plasma membrane Ca2+ pump in neurons

    J. Biol. Chem.

    (2000)
  • L Li et al.

    Calcineurin controls the transcription of Na+/Ca2+ exchanger isoforms in developing cerebellar neurons

    J. Biol. Chem.

    (2000)
  • G.R Crabtree

    Calcium, calcineurin, and the control of transcription

    J. Biol. Chem.

    (2001)
  • H Bito et al.

    CREB phosphorylation and dephosphorylation: a Ca2+- and stimulus duration-dependent switch for hippocampal gene expression

    Cell

    (1996)
  • B.E Lonze et al.

    Function and regulation of CREB family transcription factors in the nervous system

    Neuron

    (2002)
  • K.T Chang et al.

    Voltage-gated channels block nicotinic regulation of CREB phosphorylation and gene expression in neurons

    Neuron

    (2001)
  • I.A Graef et al.

    Neurotrophins and netrins require calcineurin/NFAT signaling to stimulate outgrowth of embryonic axons

    Cell

    (2003)
  • J Lisman

    The CaM kinase II hypothesis for the storage of synaptic memory

    Trends Neurosci.

    (1994)
  • J.E Lisman et al.

    A model of synaptic memory: a CaMKII/PP1 switch that potentiates transmission by organizing an AMPA receptor anchoring assembly

    Neuron

    (2001)
  • K Fukunaga et al.

    A working model of CaM kinase II activity in hippocampal long-term potentiation and memory

    Neurosci. Res.

    (2000)
  • P.C Bennett et al.

    Cyclosporin A, FK506 and rapamycin produce multiple, temporally distinct, effects on memory following single-trial, passive avoidance training in the chick

    Brain Res.

    (2002)
  • P.C Bennett et al.

    Peptidyl-prolyl-cis/trans-isomerase activity may be necessary for memory formation

    FEBS Lett.

    (1998)
  • S Ikegami et al.

    Antisense DNA against calcineurin facilitates memory in contextual fear conditioning by lowering the threshold for hippocampal long-term potentiation induction

    Neuroscience

    (2000)
  • S.H Snyder et al.

    Immunophilins in the nervous system

    Neuron

    (1998)
  • I.M Mansuy et al.

    Restricted and regulated overexpression reveals calcineurin as a key component of the transition from short-term to long-term memory

    Cell

    (1998)
  • I.M Mansuy et al.

    Inducible and reversible gene expression with the rtTA system for the study of memory

    Neuron

    (1998)
  • G Malleret et al.

    Reversible enhancement of learning, memory and long-term potentiation by genetic inhibition of the protein phosphatase calcineurin

    Cell

    (2001)
  • H Zeng et al.

    Forebrain-specific calcineurin knockout selectively impairs bidirectional synaptic plasticity and working/episodic-like memory

    Cell

    (2001)
  • J.A Cummings et al.

    Ca2+ signaling requirements for long-term depression in the hippocampus

    Neuron

    (1996)
  • M.F Bear

    Mechanism for a sliding synaptic modification threshold

    Neuron

    (1995)
  • A.J Heynen et al.

    Bidirectional, activity-dependent regulation of glutamate receptors in the adult hippocampus in vivo

    Neuron

    (2000)
  • P.T Huerta et al.

    Bidirectional synaptic plasticity induced by a single burst during cholinergic theta oscillation in CA1 in vitro

    Neuron

    (1995)
  • D.J.A Wyllie et al.

    A role for protein kinases and phosphatases in the Ca2+-induced enhancement of hippocampal AMPA receptor-mediated synaptic responses

    Neuron

    (1994)
  • T.S Sihra et al.

    Localized Ca2+ entry preferentially effects protein dephosphorylation, phosphorylation, and glutamate release

    J. Biol. Chem.

    (1992)
  • T.S Sihra et al.

    A role for calcineurin (protein phosphatase-2B) in the regulation of glutamate release

    Biochem. Biophys. Res. Commun.

    (1995)
  • C.B Klee et al.

    Calcineurin: a calcium- and calmodulin-binding protein of the nervous system

    Proc. Natl. Acad. Sci. USA

    (1979)
  • C.B Klee et al.

    The calmodulin-regulated protein phosphatase

  • D.G Winder et al.

    Roles of serine/threonine phosphatases in hippocampal synaptic plasticity

    Nat. Rev. Neurosci.

    (2001)
  • Cited by (166)

    • Pin1 and Alzheimer's disease

      2023, Translational Research
      Citation Excerpt :

      Aβ42 signaling is known to upregulate CaN activity in cells104,105 and CaN expression in patients and AD animal models is elevated.105,106 Conversely, CaN normalization restores synaptic plasticity,107 dendritic spine density108 and learning and memory.109,110 However, complete knock-down of CaN inhibited working memory111 and synaptic plasticity112 demonstrating that normal brain function requires CaN expression and activity within a tightly controlled range.

    View all citing articles on Scopus
    View full text