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Peter S, Urbanus BHA, Klaassen RV, Wu B, Boele HJ, Azizi S, Slotman JA, Houtsmuller AB, Schonewille M, Hoebeek FE, Spijker S, Smit AB, De Zeeuw CI. AMPAR Auxiliary Protein SHISA6 Facilitates Purkinje Cell Synaptic Excitability and Procedural Memory Formation. Cell Rep 2021; 31:107515. [PMID: 32294428 PMCID: PMC7175376 DOI: 10.1016/j.celrep.2020.03.079] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/31/2020] [Accepted: 03/23/2020] [Indexed: 12/15/2022] Open
Abstract
The majority of excitatory postsynaptic currents in the brain are gated through AMPA-type glutamate receptors, the kinetics and trafficking of which can be modulated by auxiliary proteins. It remains to be elucidated whether and how auxiliary proteins can modulate synaptic function to contribute to procedural memory formation. In this study, we report that the AMPA-type glutamate receptor (AMPAR) auxiliary protein SHISA6 (CKAMP52) is expressed in cerebellar Purkinje cells, where it co-localizes with GluA2-containing AMPARs. The absence of SHISA6 in Purkinje cells results in severe impairments in the adaptation of the vestibulo-ocular reflex and eyeblink conditioning. The physiological abnormalities include decreased presence of AMPARs in synaptosomes, impaired excitatory transmission, increased deactivation of AMPA receptors, and reduced induction of long-term potentiation at Purkinje cell synapses. Our data indicate that Purkinje cells require SHISA6-dependent modification of AMPAR function in order to facilitate cerebellar, procedural memory formation. SHISA6 is prominently expressed in Purkinje cells in close association with AMPARs SHISA6 absence in Purkinje cells results in impaired procedural memory formation Purkinje cell synaptic baseline excitatory transmission is facilitated by SHISA6 Purkinje cell AMPAR kinetics are modulated by SHISA6
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Affiliation(s)
- Saša Peter
- Department of Neuroscience, Erasmus MC, 3000 DR Rotterdam, the Netherlands
| | | | - Remco V Klaassen
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, VU University Amsterdam, 1081 HV Amsterdam, the Netherlands
| | - Bin Wu
- Department of Neuroscience, Erasmus MC, 3000 DR Rotterdam, the Netherlands; Department of Neurology, Huashan Hospital, Fudan University, 200040 Shanghai, China
| | - Henk-Jan Boele
- Department of Neuroscience, Erasmus MC, 3000 DR Rotterdam, the Netherlands
| | - Sameha Azizi
- Department of Neuroscience, Erasmus MC, 3000 DR Rotterdam, the Netherlands
| | - Johan A Slotman
- Optical Imaging Centre, Department of Pathology, Erasmus MC, 3000 DR Rotterdam, the Netherlands
| | - Adriaan B Houtsmuller
- Optical Imaging Centre, Department of Pathology, Erasmus MC, 3000 DR Rotterdam, the Netherlands
| | | | - Freek E Hoebeek
- Department of Neuroscience, Erasmus MC, 3000 DR Rotterdam, the Netherlands; Department for Developmental Origins of Disease, Wilhelmina Children's Hospital, Brain Center, UMC Utrecht, 3584 EA Utrecht, the Netherlands
| | - Sabine Spijker
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, VU University Amsterdam, 1081 HV Amsterdam, the Netherlands
| | - August B Smit
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, VU University Amsterdam, 1081 HV Amsterdam, the Netherlands.
| | - Chris I De Zeeuw
- Department of Neuroscience, Erasmus MC, 3000 DR Rotterdam, the Netherlands; Netherlands Institute for Neuroscience, 1105 CA Amsterdam, the Netherlands.
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