Kinase network dysregulation in a human induced pluripotent stem cell model of DISC1 schizophrenia
Year: 2019
Type: article
Abstract: Protein kinases orchestrate signal transduction pathways involved in central nervous system functions ranging from neurodevelopment to synaptic transmission and plasticity. Abnormalities in kinase-mediated signaling are involved in the pathophysiology of neurological disorders, including neuropsychiatric disorders. Here, we expand on the hypothesis that kinase networks are dysregulated in schizophrenia. We investigated changes in serine/threonine kinase activity in cortical excitatory neurons differentiated from induced pluripotent stem cells (iPSCs) from a schizophrenia patient presenting with a 4 bp mutation in the disrupted in schizophrenia 1 (DISC1) gene and a corresponding control. Using kinome peptide arrays, we demonstrate large scale abnormalities in DISC1 cells, including a global depression of serine/threonine kinase activity, and changes in activity of kinases, including AMP-activated protein kinase (AMPK), extracellular signal-regulated kinases (ERK), and thousand-and-one amino acid (TAO) kinases. Using isogenic cell lines in which the DISC1 mutation is either introduced in the control cell line, or rescued in the schizophrenia cell line, we ascribe most of these changes to a direct effect of the presence of the DISC1 mutation. Investigating the gene expression signatures downstream of the DISC1 kinase network, and mapping them on perturbagen signatures obtained from the Library of Integrated Network-based Cellular Signatures (LINCS) database, allowed us to propose novel drug targets able to reverse the DISC1 kinase dysregulation gene expression signature. Altogether, our findings provide new insight into abnormalities of kinase networks in schizophrenia and suggest possible targets for disease intervention.
Source: Molecular Omics
DOI: 10.1039/c8mo00173a
Institutions: Vrije Universiteit Brussel, Cincinnati Children's Hospital Medical Center, University of Toledo, University of Alabama at Birmingham, Emory University, St. Jude Children's Research Hospital, Nanjing Drum Tower Hospital, Nanjing University, University of Pennsylvania, University of Cincinnati
Language: English
Subfield: Psychiatry and Mental health
Field: Medicine
Domain: Health Sciences
Open Access status: hybrid
Estimated APC paid: $3,835
Funders: Emory University, University of Alabama, Edward Mallinckrodt, Jr. Foundation, National Institutes of Health, Alzheimer's Disease Research Center, Emory University, National Institute on Aging, National Institute of Mental Health, National Institute of Allergy and Infectious Diseases, National Institute of Neurological Disorders and Stroke
Awards: Proteomic analysis of the postsynaptic density-95 interactome in schizophrenia, G2161932136, G2409549499, Neuron Subtype and Circuit Specific Patterns of Gene Expression in Schizophrenia, G4183424045, Chaperone-mediated Autophagy and Synaptic Dysfunction in Parkinson's Disease, iPSC-based platform development for major psychiatric disorder modeling and discovery, Cell-specific analysis of sub-kinomes in schizophrenia, Emory Alzheimer's Disease Center, Engineering a human brain organoid-based platform to study neurotropic viruses, G9000227779, Continuous Neurogenesis in the Mammalian Hippocampus
OpenAlex ID: W2946518831