PsychAD consortium releases high-resolution human prefrontal cortex atlas

An international scientific consortium under the PsychAD program has released a high-resolution single-cell atlas of the human dorsolateral prefrontal cortex. The findings, published across several Nature-group journals, utilize data from millions of cell nuclei to map the molecular and cellular architecture of the brain.

One major study, coordinated by researchers at Mount Sinai Hospital, analyzed over 6.3 million cell nuclei from 1,494 donors. This dataset includes individuals with Alzheimer’s, Parkinson’s, Lewy body disease, vascular dementia, schizophrenia, and bipolar disorder. The research identified both shared and disease-specific molecular pathways, helping to define cellular trajectories associated with disease progression and neuropsychiatric symptoms.

Additional research within the project provides insights into brain development, suggesting that the prefrontal cortex reaches a point of maturity around age 24. The studies describe three distinct phases of brain life: intense remodeling during early development, relative stability during adulthood, and a molecular resurgence in old age, where support cells like astrocytes and microglia become more prominent.