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Glerup S, Bolcho U, Mølgaard S, Bøggild S, Vaegter CB, Smith AH, Nieto-Gonzalez JL, Ovesen PL, Pedersen LF, Fjorback AN, Kjolby M, Login H, Holm MM, Andersen OM, Nyengaard JR, Willnow TE, Jensen K, Nykjaer A. SorCS2 is required for BDNF-dependent plasticity in the hippocampus. Mol Psychiatry 2016; 21:1740-1751. [PMID: 27457814 DOI: 10.1038/mp.2016.108] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 04/06/2016] [Accepted: 04/18/2016] [Indexed: 12/16/2022]
Abstract
SorCS2 is a member of the Vps10p-domain receptor gene family receptors with critical roles in the control of neuronal viability and function. Several genetic studies have suggested SORCS2 to confer risk of bipolar disorder, schizophrenia and attention deficit-hyperactivity disorder. Here we report that hippocampal N-methyl-d-aspartate receptor-dependent synaptic plasticity is eliminated in SorCS2-deficient mice. This defect was traced to the ability of SorCS2 to form complexes with the neurotrophin receptor p75NTR, required for pro-brain-derived neurotrophic factor (BDNF) to induce long-term depression, and with the BDNF receptor tyrosine kinase TrkB to elicit long-term potentiation. Although the interaction with p75NTR was static, SorCS2 bound to TrkB in an activity-dependent manner to facilitate its translocation to postsynaptic densities for synaptic tagging and maintenance of synaptic potentiation. Neurons lacking SorCS2 failed to respond to BDNF by TrkB autophosphorylation, and activation of downstream signaling cascades, impacting neurite outgrowth and spine formation. Accordingly, Sorcs2-/- mice displayed impaired formation of long-term memory, increased risk taking and stimulus seeking behavior, enhanced susceptibility to stress and impaired prepulse inhibition. Our results identify SorCS2 as an indispensable coreceptor for p75NTR and TrkB in hippocampal neurons and suggest SORCS2 as the link between proBDNF/BDNF signaling and mental disorders.
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Affiliation(s)
- S Glerup
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - U Bolcho
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - S Mølgaard
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - S Bøggild
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - C B Vaegter
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - A H Smith
- Yale School of Medicine, Interdepartmental Neuroscience Program and Medical Scientist Training Program, New Haven, CT, USA
- Department of Psychiatry, VAT CT Healthcare Center, and Yale School of Medicine, New Haven, CT, USA
| | | | - P L Ovesen
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - L F Pedersen
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - A N Fjorback
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - M Kjolby
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - H Login
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - M M Holm
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - O M Andersen
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - J R Nyengaard
- MIND Center, Stereology and Electron Microscopy Laboratory, Aarhus University, Aarhus C, Denmark
| | - T E Willnow
- Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
| | - K Jensen
- Institute of Neuroscience and Physiology, The Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - A Nykjaer
- The Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience DANDRITE- Nordic EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
- Department of Biomedicine, Aarhus University, Aarhus C, Denmark
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
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Mehmedbasic A, Christensen SK, Nilsson J, Rüetschi U, Gustafsen C, Poulsen ASA, Rasmussen RW, Fjorback AN, Larson G, Andersen OM. SorLA complement-type repeat domains protect the amyloid precursor protein against processing. J Biol Chem 2014; 290:3359-76. [PMID: 25525276 DOI: 10.1074/jbc.m114.619940] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
SorLA is a neuronal sorting receptor that is genetically associated with Alzheimer disease. SorLA interacts directly with the amyloid precursor protein (APP) and affects the processing of the precursor, leading to a decreased generation of the amyloid-β peptide. The SorLA complement-type repeat (CR) domains associate in vitro with APP, but the precise molecular determinants of SorLA·APP complex formation and the mechanisms responsible for the effect of binding on APP processing have not yet been elucidated. Here, we have generated protein expression constructs for SorLA devoid of the 11 CR-domains and for two SorLA mutants harboring substitutions of the fingerprint residues in the central CR-domains. We generated SH-SY5Y cell lines that stably express these SorLA variants to study the binding and processing of APP using co-immunoprecipitation and Western blotting/ELISAs, respectively. We found that the SorLA CR-cluster is essential for interaction with APP and that deletion of the CR-cluster abolishes the protection against APP processing. Mutation of identified fingerprint residues in the SorLA CR-domains leads to changes in the O-linked glycosylation of APP when expressed in SH-SY5Y cells. Our results provide novel information on the mechanisms behind the influence of SorLA activity on APP metabolism by controlling post-translational glycosylation in the Golgi, suggesting new strategies against amyloidogenesis in Alzheimer disease.
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Affiliation(s)
- Arnela Mehmedbasic
- From the Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience Nordic-EMBL Partnership (DANDRITE), Department of Biomedicine, Aarhus University, Ole Worms Allé 3, DK-8000 AarhusC, Denmark and
| | - Sofie K Christensen
- From the Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience Nordic-EMBL Partnership (DANDRITE), Department of Biomedicine, Aarhus University, Ole Worms Allé 3, DK-8000 AarhusC, Denmark and
| | - Jonas Nilsson
- the Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg, Sweden
| | - Ulla Rüetschi
- the Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg, Sweden
| | - Camilla Gustafsen
- From the Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience Nordic-EMBL Partnership (DANDRITE), Department of Biomedicine, Aarhus University, Ole Worms Allé 3, DK-8000 AarhusC, Denmark and
| | - Annemarie Svane Aavild Poulsen
- From the Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience Nordic-EMBL Partnership (DANDRITE), Department of Biomedicine, Aarhus University, Ole Worms Allé 3, DK-8000 AarhusC, Denmark and
| | - Rikke W Rasmussen
- From the Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience Nordic-EMBL Partnership (DANDRITE), Department of Biomedicine, Aarhus University, Ole Worms Allé 3, DK-8000 AarhusC, Denmark and
| | - Anja N Fjorback
- From the Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience Nordic-EMBL Partnership (DANDRITE), Department of Biomedicine, Aarhus University, Ole Worms Allé 3, DK-8000 AarhusC, Denmark and
| | - Göran Larson
- the Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg, Sweden
| | - Olav M Andersen
- From the Lundbeck Foundation Research Center MIND, Danish Research Institute of Translational Neuroscience Nordic-EMBL Partnership (DANDRITE), Department of Biomedicine, Aarhus University, Ole Worms Allé 3, DK-8000 AarhusC, Denmark and
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3
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Glerup S, Olsen D, Vaegter CB, Gustafsen C, Sjoegaard SS, Hermey G, Kjolby M, Molgaard S, Ulrichsen M, Boggild S, Skeldal S, Fjorback AN, Nyengaard JR, Jacobsen J, Bender D, Bjarkam CR, Sørensen ES, Füchtbauer EM, Eichele G, Madsen P, Willnow TE, Petersen CM, Nykjaer A. SorCS2 regulates dopaminergic wiring and is processed into an apoptotic two-chain receptor in peripheral glia. Neuron 2014; 82:1074-87. [PMID: 24908487 DOI: 10.1016/j.neuron.2014.04.022] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2014] [Indexed: 01/12/2023]
Abstract
Balancing trophic and apoptotic cues is critical for development and regeneration of neuronal circuits. Here we identify SorCS2 as a proneurotrophin (proNT) receptor, mediating both trophic and apoptotic signals in conjunction with p75(NTR). CNS neurons, but not glia, express SorCS2 as a single-chain protein that is essential for proBDNF-induced growth cone collapse in developing dopaminergic processes. SorCS2- or p75(NTR)-deficient in mice caused reduced dopamine levels and metabolism and dopaminergic hyperinnervation of the frontal cortex. Accordingly, both knockout models displayed a paradoxical behavioral response to amphetamine reminiscent of ADHD. Contrary, in PNS glia, but not in neurons, proteolytic processing produced a two-chain SorCS2 isoform that mediated proNT-dependent Schwann cell apoptosis. Sciatic nerve injury triggered generation of two-chain SorCS2 in p75(NTR)-positive dying Schwann cells, with apoptosis being profoundly attenuated in Sorcs2(-/-) mice. In conclusion, we have demonstrated that two-chain processing of SorCS2 enables neurons and glia to respond differently to proneurotrophins.
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Affiliation(s)
- Simon Glerup
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
| | - Ditte Olsen
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Christian B Vaegter
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Camilla Gustafsen
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Susanne S Sjoegaard
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Guido Hermey
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Center for Molecular Neurobiology, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Mads Kjolby
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Simon Molgaard
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; MIND Center, Stereology and Electron Microscopy Laboratory, Aarhus University, 8000 C Aarhus, Denmark
| | - Maj Ulrichsen
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Simon Boggild
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Sune Skeldal
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Anja N Fjorback
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Jens R Nyengaard
- MIND Center, Stereology and Electron Microscopy Laboratory, Aarhus University, 8000 C Aarhus, Denmark
| | - Jan Jacobsen
- PET Center, Aarhus University Hospital, 8000 C Aarhus, Denmark
| | - Dirk Bender
- PET Center, Aarhus University Hospital, 8000 C Aarhus, Denmark
| | - Carsten R Bjarkam
- Department of Neurosurgery, Aarhus University Hospital, 8000 C Aarhus, Denmark
| | - Esben S Sørensen
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | | | - Gregor Eichele
- Department of Genes and Behaviour, Max Plack Institute, 37077 Göttingen, Germany
| | - Peder Madsen
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Thomas E Willnow
- Max-Delbrueck-Center for Molecular Medicine, 13125 Berlin, Germany
| | - Claus M Petersen
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark
| | - Anders Nykjaer
- The Lundbeck Foundation Research Center MIND, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Danish Research Institute of Translational Neuroscience DANDRITE Nordic-EMBL Partnership, Department of Biomedicine, Aarhus University, Vennelyst Boulevard 4, 8000 C Aarhus, Denmark; Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
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