| 2005 |
DISC1 is a component of the microtubule-associated dynein motor complex and is essential for maintaining this complex at the centrosome. C-terminally truncated mutant DISC1 acts in a dominant-negative manner by redistributing wild-type DISC1 through self-association and dissociating the DISC1-dynein complex from the centrosome, impairing neurite outgrowth in vitro and cerebral cortex development in vivo. |
Co-immunoprecipitation, dominant-negative overexpression, RNA interference knockdown in PC12 cells and in vivo mouse cortical electroporation |
Nature cell biology |
High |
16299498
|
| 2006 |
A specific interaction between DISC1 and NDEL1 (mapped to amino acids 802–835 of DISC1, corresponding to exon 13) is required for neurite outgrowth in differentiating PC12 cells. Genetic variants of DISC1 proximal to this binding site alter the DISC1–NDEL1 interaction. |
Co-immunoprecipitation, deletion mapping, PC12 cell neurite outgrowth assay, analysis of disease-associated DISC1 variants |
Human molecular genetics |
High |
17035248
|
| 2007 |
DISC1 missense mutations Q31L and L100P both exhibit reduced binding to PDE4B. Q31L mutants show lower PDE4B activity consistent with reduced PDE4 engagement. The DISC1–PDE4B interaction is thus required for normal cAMP signaling relevant to mood and psychosis-related behaviors. |
ENU mutagenesis in mice, co-immunoprecipitation, PDE4 enzymatic activity assay, behavioral pharmacology |
Neuron |
High |
17481393
|
| 2004 |
DISC1 localizes to the centrosome by binding to kendrin/pericentrin-B. The interaction domain was mapped to residues 446–533 of DISC1. Kendrin anchors gamma-tubulin to the centrosome, implicating DISC1 in centrosomal microtubule nucleation. |
Yeast two-hybrid screen, co-immunoprecipitation, immunocytochemistry colocalization |
Biochemical and biophysical research communications |
Medium |
15094396
|
| 2008 |
DISC1 acts as a scaffold assembling a complex containing NDE1, NDEL1, LIS1, dynein, PDE4B, and PDE4D at the centrosome and synapse. NDE1 is phosphorylated by PKA, whose activity is regulated by PDE4; DISC1 scaffolds both PDE4 and NDE1/NDEL1/LIS1/dynein at the centrosome and synapse. |
Co-immunoprecipitation, immunofluorescence in cultured neurons, subcellular fractionation |
Biochemical and biophysical research communications |
Medium |
18983980
|
| 2008 |
DISC1 in the nucleus co-localizes with PML bodies and interacts with ATF4/CREB2 and the co-repressor N-CoR, modulating CRE-mediated gene transcription. Three functional cis-elements regulating nuclear localization of DISC1 were identified. In Drosophila, nuclear DISC1 accumulation disturbs sleep homeostasis linked to CRE-mediated transcription. |
Drosophila transgenic model, mammalian cell immunofluorescence, co-immunoprecipitation, luciferase CRE reporter assay, deletion mapping of nuclear localization signals |
Molecular psychiatry |
Medium |
18762802
|
| 2007 |
DISC1 interacts with Grb2 and forms a ternary complex with Grb2 and kinesin heavy chain KIF5A. DISC1 is required for NT-3-induced axon elongation by recruiting Grb2 to axonal tips, enabling ERK-1/2 phosphorylation at the distal axon. Knockdown of DISC1 or kinesin light chains inhibits Grb2 accumulation at axon tips and NT-3-induced ERK activation. |
Co-immunoprecipitation, RNA interference in hippocampal neurons, immunofluorescence, ERK phosphorylation assay |
The Journal of neuroscience |
Medium |
17202467
|
| 2005 |
The N-terminal head domain of DISC1 is sufficient for mitochondrial and nuclear targeting, while C-terminal sequence facilitates centrosomal association. DISC1 overexpression produces striking mitochondrial ring-like reorganization, indicating a role in mitochondrial fusion and/or fission. |
Truncation construct expression in COS-7 cells, immunofluorescence, live-cell imaging of mitochondria |
Molecular and cellular neurosciences |
Medium |
16209927
|
| 2010 |
Dixdc1 interacts with DISC1 to regulate neural progenitor proliferation via Wnt–GSK3β/β-catenin signaling, and regulates neuronal migration through a distinct pathway requiring Cdk5-mediated phosphorylation of Dixdc1, which then facilitates interaction with the DISC1-binding partner Ndel1. DISC1 and Dixdc1 thus integrate Wnt-dependent and -independent signaling during cortical development. |
Co-immunoprecipitation, in utero electroporation (mouse cortex), phosphorylation-defective/mimetic Dixdc1 mutants, Wnt reporter assay |
Neuron |
High |
20624590
|
| 2011 |
DISC1 binds directly to GSK3α/β via its N-terminal region (aa 1–220). The L100P mutation reduces DISC1–GSK3 interaction, leading to dysregulated GSK3 activity. Pharmacological or genetic inactivation of GSK3 reverses schizophrenia-related behavioral deficits in Disc1-L100P mice. |
Co-immunoprecipitation, genetic GSK3 inactivation, pharmacological GSK3 inhibition, prepulse/latent inhibition behavioral assays |
Synapse |
Medium |
20687110
|
| 2011 |
DISC1 and PDE4 modulate phosphorylation of NDE1 by PKA at a novel substrate site threonine-131 (T131). Phosphorylation at T131 modulates NDE1–LIS1 and NDE1–NDEL1 interactions; mimicking PKA phosphorylation at T131 inhibits neurite outgrowth. Thus DISC1–PDE4 interaction regulates organization of the NDE1/NDEL1/LIS1 complex. |
In vitro PKA phosphorylation assay, phospho-specific antibody, homology modeling, Co-immunoprecipitation, neurite outgrowth assay with phospho-mutants |
The Journal of neuroscience |
High |
21677187
|
| 2011 |
DISC1 regulates synaptic vesicle transport along microtubules via FEZ1. Knockdown or dominant-negative DISC1 disrupts assembly of the kinesin-1 adaptor FEZ1 with the cargo protein Synaptotagmin-1 (Syt-1), attenuating vesicle transport. Lithium restores FEZ1–Syt-1 assembly and normalizes defective transport. |
RNAi knockdown, dominant-negative DISC1 expression, live vesicle transport imaging in cortical neurons, co-immunoprecipitation |
Neuroscience research |
Medium |
21664390
|
| 2011 |
DISC1 interacts with FEZ1 to regulate dendritic growth of newborn neurons in the adult hippocampus, functioning in a pathway parallel to and distinct from the DISC1–NDEL1 interaction that regulates cell positioning and morphogenesis. |
RNAi in adult mouse hippocampus (retroviral), co-immunoprecipitation, genetic epistasis analysis in schizophrenia cohorts |
Neuron |
Medium |
22099459
|
| 2011 |
DISC1 regulates neural progenitor proliferation through Wnt–GSK3β/β-catenin signaling. Common DISC1 variants A83V, R264Q, and L607F are loss-of-function for Wnt signaling and reduce neural progenitor proliferation, whereas S704C inhibits neuronal migration. These variants fail to rescue DISC1 knockdown-mediated brain development defects in zebrafish. |
Wnt reporter assay, zebrafish knockdown rescue, mouse cortical progenitor proliferation assay, human lymphoblast Wnt signaling, TALEN/CRISPR mutants |
Neuron |
High |
22099458
|
| 2012 |
DISC1 regulation of dendritic development of newborn neurons during adult hippocampal neurogenesis requires GABA-induced, NKCC1-dependent depolarization converging on the AKT–mTOR pathway. Genetic epistasis between DISC1 and NKCC1 (SLC12A2) affects schizophrenia risk. |
Retroviral RNAi in adult mouse hippocampus, pharmacological NKCC1 inhibition, mTOR pathway inhibitor/activator, genetic epistasis in two human case-control cohorts |
Cell |
High |
22385968
|
| 2012 |
DISC1 binds to and stabilizes serine racemase (SR), the enzyme that generates D-serine. Mutant DISC1 fails to bind SR, facilitating its ubiquitination and proteasomal degradation, decreasing D-serine production and impairing NMDA receptor signaling. |
Co-immunoprecipitation, dominant-negative DISC1 mouse model (astrocyte-selective), ubiquitination assay, D-serine measurement, NMDA antagonist behavioral tests |
Molecular psychiatry |
High |
22801410
|
| 2010 |
DISC1 interacts with TNIK (Traf2 and Nck-interacting kinase) at synapses. The DISC1–TNIK interaction stabilizes key postsynaptic density proteins, regulating synaptic composition and activity. |
Co-immunoprecipitation, synaptic fractionation, RNAi knockdown, electrophysiology |
Molecular psychiatry |
Medium |
20838393
|
| 2010 |
DISC1 localizes near the base of primary cilia and is required for primary cilia formation/maintenance. RNAi-mediated knockdown of DISC1 markedly reduces the number of cells bearing primary cilia in NIH3T3 cells and striatal neurons. Specific dopamine receptor subtypes (D1, D2, D5 but not D3/D4) are concentrated on the ciliary surface. |
GFP-DISC1 localization imaging, RNAi knockdown, immunofluorescence for primary cilia markers |
PloS one |
Medium |
20531939
|
| 2013 |
DISC1 associates with TRAK1 (trafficking-protein kinesin-binding 1) and Miro1, forming a functional mitochondrial transport complex. In neuronal axons, DISC1 specifically promotes anterograde mitochondrial transport. A rare human DISC1 sequence variant (37W) impairs this anterograde transport function. |
Co-immunoprecipitation, live axonal mitochondria transport imaging, variant-specific functional analysis |
Human molecular genetics |
Medium |
24092329
|
| 2015 |
DISC1 couples to mitochondrial transport and fusion machinery via interactions with Miro1, Miro2, TRAK1, TRAK2, and mitofusins. Disruption of the DISC1–Miro–TRAK complex inhibits mitochondrial transport in neurons. DISC1–Boymaw fusion protein localizes to mitochondria, disrupts mitochondrial dynamics, decreases ER–mitochondria contact area (shown by super-resolution microscopy), and impairs neuronal dendritic development. |
Co-immunoprecipitation, live-cell mitochondria transport imaging, super-resolution microscopy, dominant-negative expression, dendritic morphology analysis |
The Journal of biological chemistry |
High |
26553875
|
| 2014 |
DISC1 forms a protein complex with the dopamine D2 receptor (D2R), facilitating D2R-mediated GSK-3 signaling and inhibiting agonist-induced D2R internalization. D2R–DISC1 complex levels are increased and GSK-3 phospho-inhibition is decreased in schizophrenia postmortem brain and in Disc1-L100P mice. An interfering peptide disrupting this complex reverses schizophrenia-relevant behaviors without inducing catalepsy. |
Co-immunoprecipitation, postmortem brain biochemistry, interfering peptide in vivo, behavioral assays |
Neuron |
High |
25433637
|
| 2014 |
DISC1 interaction with APP (amyloid precursor protein) regulates APP proteolytic processing: DISC1 knockdown increases APP-CTFα and sAPPα while decreasing Aβ42 and Aβ40 levels. DISC1 knockdown increases APP at the cell surface and decreases its internalization. Rescue with wild-type but not APP-interaction-deficient DISC1 confirms the interaction is required. |
RNAi knockdown in cortical neurons, ELISA for Aβ and sAPP fragments, surface biotinylation, rescue with DISC1 interaction-deficient mutant |
Molecular psychiatry |
Medium |
25224257
|
| 2015 |
DISC1 disruption near the translocation site results in decreased DISC1 protein due to nonsense-mediated decay of long splice variants, causing increased canonical Wnt signaling in neural progenitor cells and altered expression of cortical fate markers (Foxg1, Tbr2). WNT antagonism during a critical developmental window rescues these gene expression changes. |
TALEN/CRISPR-Cas9 DISC1 targeting in hiPSCs, Wnt reporter assay, RT-qPCR, pharmacological Wnt antagonism rescue |
Cell reports |
High |
26299970
|
| 2015 |
DISC1 inhibits NRG1-induced ErbB4 activation and downstream signaling in mature cortical interneurons. This is likely mediated by competitive inhibition of ErbB4 binding to PSD95. Interneuronal DISC1 thus affects the fast-spiking interneuron–pyramidal neuron excitatory–inhibitory circuit. |
Cell type-specific viral gene knockdown/overexpression in vitro and in vivo, mutant DISC1 mouse model, ErbB4 phosphorylation assay, co-immunoprecipitation |
Nature communications |
Medium |
26656849
|
| 2015 |
DISC1 localizes to the outer surface of the endoplasmic reticulum (ER). EXOC1 (a subunit of the exocyst complex) interacts with DISC1 and affects its recruitment to IP3R1. DISC1 knockdown elicits exaggerated ER calcium responses upon IP3R agonist stimulation, an effect reversed by antipsychotic drugs. |
Subcellular fractionation, co-immunoprecipitation, calcium imaging, RNAi knockdown, DISC1-deficient mutant mouse neurons |
Scientific reports |
Medium |
25732993
|
| 2016 |
DISC1 regulates astrogenesis through direct association with RASSF7, activating the RAS/MEK/ERK signaling pathway. The pERK complex undergoes nuclear translocation and influences expression of astrogenesis-related genes. DISC1 knockdown represses astrogenesis; overexpression enhances it. |
Co-immunoprecipitation, in utero electroporation (knockdown and overexpression), in vitro astrogenesis assay, phospho-ERK nuclear translocation analysis |
Development |
Medium |
27287808
|
| 2016 |
TLR3 signaling acts through MYD88 to negatively regulate Disc1 expression in neurons, impairing dendritic arborization. DISC1 overexpression rescues TLR3-induced dendritic defects, placing DISC1 downstream of TLR3-MYD88 in this innate immune signaling pathway regulating neuronal morphology. |
TLR3 agonist treatment of cultured neurons and in vivo mouse brain, MYD88 knockout, DISC1 overexpression rescue, dendritic morphology analysis |
EMBO reports |
Medium |
27979975
|
| 2017 |
The high-resolution crystal structure of the DISC1 C-terminal tail in complex with the binding domain of Ndel1 was solved. Mechanistically, DISC1 regulates Ndel1's kinetochore attachment (but not centrosome localization) during mitosis. Disrupting the DISC1/Ndel1 complex prolongs mitotic length, interferes with cell-cycle progression in human cells, and causes cell-cycle deficits in radial glial cells in embryonic mouse cortex and human forebrain organoids. |
X-ray crystallography, DISC1/Ndel1 interface mutagenesis, mitosis imaging, cell-cycle analysis, in utero electroporation, human forebrain organoids including schizophrenia patient iPSC-derived organoids |
Neuron |
High |
29103808
|
| 2017 |
HTT forms a ternary protein complex with DISC1 and PDE4. In Huntington's disease, pathological cross-seeding between mutant HTT aggregates and DISC1 reduces soluble DISC1, dysregulating the DISC1–PDE4 complex and aberrantly increasing PDE4 activity. Expression of a modified DISC1 that binds PDE4 but not mutant HTT normalizes PDE4 activity and ameliorates anhedonia in R6/2 mice. |
Co-immunoprecipitation, protein aggregation assays, DISC1/PDE4 activity assay, modified DISC1 rescue in R6/2 mice, behavioral assay |
The Journal of clinical investigation |
High |
28263187
|
| 2017 |
FBXW7, an F-box protein of the SCF ubiquitin ligase complex, binds a DISC1 phosphodegron motif and mediates DISC1 proteasomal degradation. The structure of FBXW7 bound to the DISC1 phosphodegron was solved, and disruption of the FBXW7–DISC1 complex stabilizes DISC1 protein. |
Structural biology (FBXW7–DISC1 complex structure), ubiquitination assay, co-immunoprecipitation, pharmacological proteasome inhibition, iPSC-derived neural progenitors from schizophrenia patients |
Molecular psychiatry |
High |
28727686
|
| 2018 |
DISC1 regulates lactate production in astrocytes: knockdown or dominant-negative DISC1 decreases expression of glucose transporter 4, glucose uptake, oxidative phosphorylation, glycolysis, and lactate production in vitro and in vivo. Lactate treatment rescues abnormal behaviors in DN-DISC1 astrocyte-selective mice. |
RNAi knockdown, dominant-negative DISC1 astrocyte-selective mouse model, glucose uptake assay, metabolic flux analysis, lactate measurement, behavioral rescue |
Translational psychiatry |
Medium |
29643356
|
| 2019 |
DISC1 binds to ATF4 (Activating Transcription Factor 4), and the high-resolution atomic structure of the DISC1–ATF4 complex was solved. A patient DISC1 frameshift mutation disrupts DISC1–ATF4 interaction, causing nuclear ATF4 accumulation and excessive ATF4–DNA binding, leading to transcriptional and synaptic dysregulation. CRISPR-mediated heterozygous ATF4 knockout rescues transcriptional and synaptic deficits in DISC1 mutant neurons. |
X-ray crystallography of DISC1–ATF4 complex, Co-IP, nuclear fractionation, ChIP, CRISPR ATF4 knockout rescue, iPSC-derived neurons |
Molecular psychiatry |
High |
31444471
|
| 2020 |
DISC1 regulation of mitochondrial trafficking depends on the GTPase state of Miro1. A psychiatric disease-associated DISC1 mutation impairs Miro1-dependent mitochondrial transport. The first Miro1 GTPase domain determines direction of mitochondrial transport, and DISC1 is involved in this directionality determination. Mutant DISC1 also alters positioning of mitochondria at synapses. |
Live mitochondria transport imaging in neurons, Miro1 GTPase domain mutants, mutant DISC1 expression, synaptic mitochondria positioning analysis |
Frontiers in cell and developmental biology |
Medium |
32637409
|
| 2021 |
A rare patient DISC1 frameshift mutation elevates PDE4 transcript levels in iPSC-derived cortical neurons and causes synaptic deficits. Pharmacological inhibition of PDE4 or activation of the cAMP signaling pathway rescues synaptic deficits. A knock-in mouse with the same mutation exhibits elevated PDE4 levels, synaptic abnormalities, and behavioral deficits, all rescued by PDE4 inhibition. |
Isogenic iPSC-derived neurons, kinome/transcriptome analysis, PDE4 inhibitor treatment, knock-in mouse model, synaptic electrophysiology, behavioral assays |
Nature communications |
High |
33658519
|
| 2022 |
DISC1 (Disc1) acts as a mitochondrial transport adaptor promoting anterograde axonal transport. Ocular hypertension causes loss of Disc1 in retinal neurons and disrupts anterograde mitochondrial transport, leading to axonal energy deficit. Disc1 gene delivery rescues anterograde transport, restores axonal ATP production (measured with genetically encoded sensor), promotes neuronal survival, and restores visual responses. |
Multiphoton live imaging of mitochondrial transport, Disc1 gene delivery (AAV), genetically encoded ATP sensor, longitudinal in vivo imaging, calcium dynamics, visual electrophysiology |
Cell reports |
High |
36103832
|
| 2008 |
The C-terminus of DISC1 is required for interaction with kendrin and for centrosomal targeting. Overexpression of the DISC1-binding region of kendrin or a DISC1 deletion mutant lacking the kendrin-binding region impairs microtubule organization. |
Directed yeast two-hybrid, deletion mutagenesis, co-immunoprecipitation, immunocytochemistry, microtubule organization assay |
Biochemical and biophysical research communications |
Medium |
18955030
|
| 2012 |
The DISC1 promoter region was characterized: a region -300 to -177 bp relative to the TSS contributes positively to DISC1 promoter activity, while -982 to -301 bp confers repression. FOXP2 inhibits DISC1 promoter activity and protein expression; two FOXP2 point mutations associated with verbal dyspraxia diminish this inhibitory effect. |
Dual luciferase promoter assay, deletion constructs, FOXP2 overexpression and disease mutant analysis, Western blot for DISC1 protein |
Human molecular genetics |
Medium |
22434823
|
| 2014 |
DISC1 negatively regulates differentiation of oligodendrocyte precursor cells into oligodendrocytes. DISC1 overexpression decreases expression of myelin markers CNPase and MBP and reduces mature oligodendrocyte number; DISC1 knockdown increases both. A truncated DISC1 acting as dominant-negative similarly increases oligodendrocyte differentiation. |
Overexpression and RNAi knockdown in primary oligodendrocyte precursor cells, immunocytochemistry for myelin markers, morphological analysis |
PloS one |
Medium |
24516667
|
| 2014 |
Inhibition of intracellular NADH oxidoreductase activity and protein translation by the DISC1-Boymaw (DB7) fusion gene. In humanized DISC1-Boymaw knock-in mice, protein translation activity is decreased in hippocampus and cultured neurons; Gad67, Nmdar1, and Psd95 protein expression are reduced. |
Humanized knock-in mice (gene targeting), protein translation assay, NADH oxidoreductase assay, Western blot for synaptic proteins |
Human molecular genetics |
Medium |
24908665
|
| 2009 |
Disc1 is expressed in zebrafish cranial neural crest (CNC) cells and is required for their migration away from the neural rod. Loss of Disc1 perpetuates expression of transcription factors foxd3 and sox10, impairing CNC cell migration and differentiation. Disc1 functions in transcriptional repression of foxd3 and sox10 to mediate CNC cell development. |
Morpholino knockdown in zebrafish, time-lapse imaging of CNC cells, in situ hybridization for foxd3/sox10 |
Development |
Medium |
19570850
|
| 2018 |
Two convergent DISC1 mutations (mimicking Scottish translocation consequences and an American pedigree frameshift) both reduce DISC1 protein levels via nonsense-mediated decay. Both mutations decrease expression of UNC5D (a netrin signaling receptor), and UNC5D knockdown phenocopies DISC1-mutant neurite outgrowth deficit. UNC5D overexpression rescues the neurite phenotype, implicating dysregulated netrin signaling downstream of DISC1. |
iPSC-derived NGN2 neurons (isogenic), RNA-seq, UNC5D knockdown and rescue, longitudinal neurite outgrowth imaging |
Translational psychiatry |
Medium |
30410030
|