Topic: cortical layer formation

Abnormal neuronal networks arising from perturbations during early brain development contribute to neurodevelopmental disorders. Mutations and deletions of human Fasciculation and Elongation Protein Zeta 1 (FEZ1) are found in schizophrenia and Jacobsen syndrome patients. However, its roles in human brain development and manifestation of clinical pathological symptoms remain unknown. Here, using human cerebral organoids (hCOs), we observed that FEZ1 expression is turned on early during brain development and is expressed in neuroprogenitor subtypes and immature neurons. Deletion of FEZ1 disrupts