The Cerebellum

, Volume 7, Issue 3, pp 385–391 | Cite as

Functional Crosstalk Between Cell-Surface and Intracellular Channels Mediated by Junctophilins Essential for Neuronal Functions

  • Sho Kakizawa
  • Shigeki Moriguchi
  • Atsushi Ikeda
  • Masamitsu Iino
  • Hiroshi TakeshimaEmail author


Junctophilins (JPs) contribute to the formation of junctional membrane complexes between the plasma membrane and the endoplasmic/sarcoplasmic reticulum, and provide a structural platform for channel communication during excitation–contraction coupling in muscle cells. In the brain, two neuronal JP subtypes are widely expressed in neurons. Recent studies have defined the essential role of neural JPs in the communication between cell-surface and intracellular channels, which modulates the excitability and synaptic plasticity of neurons in the cerebellum and hippocampus.


Junctophilin Ryanodine receptor Ca2+ release Afterhyperpolarization Small-conductance Ca2+-activated K+ channel Long-term depression Purkinje cell 


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Sho Kakizawa
    • 1
    • 2
  • Shigeki Moriguchi
    • 3
  • Atsushi Ikeda
    • 4
  • Masamitsu Iino
    • 1
  • Hiroshi Takeshima
    • 4
    Email author
  1. 1.Department of Pharmacology, Graduate School of MedicineThe University of TokyoTokyoJapan
  2. 2.Department of Anatomy and Neurobiology, Graduate School of MedicineNagasaki UniversityNagasakiJapan
  3. 3.Department of Pharmacology, Graduate School of Pharmaceutical SciencesTohoku UniversitySendaiJapan
  4. 4.Department of Biological ChemistryKyoto University Graduate School of Pharmaceutical SciencesKyotoJapan

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