Cited by 86Schizophrenia research and treatmentProtein Tyrosine PhosphatasesGenetic Associations and Epidemiology

Molecular dissection of NRG1-ERBB4 signaling implicates PTPRZ1 as a potential schizophrenia susceptibility gene

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Buxbaum, J D, Georgieva, L, Young, J J, Plescia, C, Kajiwara, Y, Jiang, Y, Moskvina, V, Norton, N +10 more·2008·Molecular Psychiatry

Abstract

Neuregulin and the neuregulin receptor ERBB4 have been genetically and functionally implicated in schizophrenia. In this study, we used the yeast two-hybrid system to identify proteins that interact with ERBB4, to identify genes and pathways that might contribute to schizophrenia susceptibility. We identified the MAGI scaffolding proteins as ERBB4-binding proteins. After validating the interaction of MAGI proteins with ERBB4 in mammalian cells, we demonstrated that ERBB4 expression, alone or in combination with ERBB2 or ERBB3, led to the tyrosine phosphorylation of MAGI proteins, and that this could be further enhanced with receptor activation by neuregulin. As MAGI proteins were previously shown to interact with receptor phosphotyrosine phosphatase beta/zeta (RPTPbeta), we postulated that simultaneous binding of MAGI proteins to RPTPbeta and ERBB4 forms a phosphotyrosine kinase/phosphotyrosine phosphatase complex. Studies in cultured cells confirmed both a spatial and functional association between ERBB4, MAGI and RPTPbeta. Given the evidence for this functional association, we examined the genes coding for MAGI and RPTPbeta for genetic association with schizophrenia in a Caucasian United Kingdom case-control cohort (n= approximately 1400). PTPRZ1, which codes for RPTPbeta, showed significant, gene-wide and hypothesis-wide association with schizophrenia in our study (best individual single-nucleotide polymorphism allelic P=0.0003; gene-wide P=0.0064; hypothesis-wide P=0.026). The data provide evidence for a role of PTPRZ1, and for RPTPbeta signaling abnormalities, in the etiology of schizophrenia. Furthermore, the data indicate a role for RPTPbeta in the modulation of ERBB4 signaling that may in turn provide further support for an important role of neuregulin/ERBB4 signaling in the molecular basis of schizophrenia.

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Crossref · 10.1038/sj.mp.4001991

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Authors
Buxbaum, J. D., Georgieva, L., Young, J. J., Plescia, C., Kajiwara, Y., Jiang, Y., Moskvina, V, Norton, N., Peirce, T., Williams, H., Craddock, N. J., Carroll, L., Corfas, G., Davis, K. L., Owen, M. J., Harroch, S., Sakurai, T., & O'Donovan, M. C.
Affiliations
  • Icahn School of Medicine at Mount Sinai (US)
  • Cardiff University (GB)
  • Harvard University (US)
  • Institut Pasteur (FR)
Corresponding author
Buxbaum, J D
Venue
Molecular Psychiatry
Published
2007-04-17
Volume
13
Issue
2
Pages
162-172
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W2025845611
Cited by
86
References
81
Citations by year
2026: 2 · 2025: 2 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 5 · 2020: 2 · 2019: 2 · 2018: 7 · 2017: 4 · 2016: 4 · 2015: 10 · 2014: 3 · 2013: 7 · 2012: 5
FWCI
0.00
Type
journal article
Language
en
Open access
Locations
  • Molecular Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
Funders
National Institute of Mental Health (P50MH066392, MH063392)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
schizophrenia, PTPRZ1, RPTPβ/ζ, ErbB4, neuregulin signaling, protein-protein interaction, tyrosine phosphorylation, genetic susceptibility, single nucleotide polymorphisms, genetic association
MeSH terms
Female, Glioma, Humans, Male, Models, Molecular, Nerve Tissue Proteins, Schizophrenia, Transfection, Tyrosine, Signal Transduction, Chi-Square Distribution, Case-Control Studies, Protein Tyrosine Phosphatases, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Neuregulin-1, Cell Line, Tumor, Immunoprecipitation, Receptor-Like Protein Tyrosine Phosphatases, Class 5, ErbB Receptors, Receptor, ErbB-4

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