Glycogen synthase kinase-3β immunoreactivity is reduced in the prefrontal cortex in schizophrenia
2001
Cytoarchitectural abnormalities have been reported in the cortex in schizophrenia. These suggest a developmental origin for this disorder. The Wnt signalling pathway is involved in the regulation of brain development; disruption of this pathway may lead to abnormal cortical development. In this study levels of three components of the Wnt signalling pathway; glycogen synthase kinase-3β(GSK-3β), β-catenin and dishevelled-2 (Dvl-2) were determined in the prefrontal cortex of ten schizophrenic and ten control individuals using immunoblotting. GSK-3β levels were significantly reduced in the schizophrenic group, while levels of β-catenin and Dvl-2 did not differ between groups. This provides further evidence for an abnormality of the Wnt signalling pathway in schizophrenia.
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