Cited by 652Phosphodiesterase function and regulationSchizophrenia research and treatmentProtein Tyrosine Phosphatases

DISC1 and PDE4B Are Interacting Genetic Factors in Schizophrenia That Regulate cAMP Signaling

Millar, J. Kirsty, Pickard, Benjamin S., Mackie, Shaun, James, Rachel, Christie, Sheila, Buchanan, Sebastienne R., Malloy, M. Pat, Chubb, Jennifer E. +12 more·2005·Science

Abstract

The disrupted in schizophrenia 1 ( DISC1 ) gene is a candidate susceptibility factor for schizophrenia, but its mechanistic role in the disorder is unknown. Here we report that the gene encoding phosphodiesterase 4B ( PDE4B ) is disrupted by a balanced translocation in a subject diagnosed with schizophrenia and a relative with chronic psychiatric illness. The PDEs inactivate adenosine 3′,5′-monophosphate (cAMP), a second messenger implicated in learning, memory, and mood. We show that DISC1 interacts with the UCR2 domain of PDE4B and that elevation of cellular cAMP leads to dissociation of PDE4B from DISC1 and an increase in PDE4B activity. We propose a mechanistic model whereby DISC1 sequesters PDE4B in resting cells and releases it in an activated state in response to elevated cAMP.

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Crossref · 10.1126/science.1112915

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  • DISC1 normally provides negative feedback on cAMP signalling, but a mutation in DISC1 decreased the activity of the phosphodiesterase PDE4B in the presence of high concentrations of cAMP.

    “For example, disrupted in schizophrenia 1 (DISC1) normally provides negative feedback on cAMP signalling, but a mutation in DISC1 decreased the activity of the phosphodiesterase PDE4B in the presence of high concentrations of cAMP128.”
  • DISC1 anchors the phosphodiesterases (PDE4s) that catabolize cAMP and regulate its signaling.

    “Particularly relevant to stress signaling in PFC, DISC1 anchors the phosphodiesterases (PDE4s) that catabolize cAMP and regulate its signaling121,125.”
  • DISC1 is critical for regulation of the stress response in PFC.

    “Emerging data indicate that the scaffolding protein Disrupted In Schizophrenia 1 (DISC1) is critical for regulation of the stress response in PFC, suggesting that genetic insults that interfere with the function of this protein increase the risk for stress-related psychiatric disorders.”
  • Mutations in DISC1 are associated with high rates of mental illness.

    “Mutations in DISC1 are associated with high rates of mental illness120,121, and more subtle polymorphisms are associated with decreased PFC gray matter and impaired working memory122,123.”

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Authors
Millar, J. K., Pickard, B. S., Mackie, S., James, R., Christie, S., Buchanan, S. R., Malloy, M. P., Chubb, J. E., Huston, E., Baillie, G. S., Thomson, P. A., Hill, E. V., Brandon, N. J., Rain, J.-C., Camargo, L. M., Whiting, P. J., Houslay, M. D., Blackwood, D. H. R., Muir, W. J., & Porteous, D. J.
Affiliations
  • Royal Edinburgh Hospital (GB)
  • Medical Genetics Section, Molecular Medicine Centre, University of Edinburgh, Edinburgh EH4 2XU, UK.
Corresponding author
Millar, J. Kirsty
Venue
Science
Published
2005-11-18
Volume
310
Issue
5751
Pages
1187-1191
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2105051672
Cited by
648
References
20
Citations by year
2026: 7 · 2025: 7 · 2024: 12 · 2023: 11 · 2022: 14 · 2021: 13 · 2020: 14 · 2019: 19 · 2018: 21 · 2017: 24 · 2016: 28 · 2015: 47 · 2014: 39 · 2013: 24 · 2012: 35
FWCI
20.82
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Phosphodiesterase function and regulation
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
Keywords
DISC1, PDE4B, schizophrenia, cAMP signaling, phosphodiesterase 4, balanced translocation, protein-protein interaction, second messengers, genetic susceptibility, chronic mental illness
MeSH terms
Cyclic AMP, Adult, Affective Disorders, Psychotic, Animals, Cell Line, Chromosomes, Human, Pair 1, Chromosomes, Human, Pair 16, Enzyme Activation, Humans, Male, Nerve Tissue Proteins, Protein Binding, Schizophrenia, Translocation, Genetic, 3',5'-Cyclic-AMP Phosphodiesterases, Signal Transduction, Cadherins, Genetic Predisposition to Disease, Rats, Cyclic Nucleotide Phosphodiesterases, Type 4

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