Seattle scientists help unveil ‘landmark’ findings on human brain

Key Points:

• A global team of over 200 scientists, including researchers from Seattle’s Allen Institute, has created the largest and most detailed cellular atlas of the basal ganglia, a brain region crucial for voluntary movement, decision-making, and habit formation.
• The basal ganglia is linked to diseases such as Parkinson’s, Huntington’s, schizophrenia, bipolar disorder, and addiction, but until now lacked a comprehensive cellular map; this new atlas reveals a previously unknown cell type connected to schizophrenia and bipolar disorder, offering potential for targeted treatments.
• The research involved molecular analysis of nearly 25.5 million brain cells from humans and primates, providing a valuable resource for understanding mammalian brains and serving as a foundation for a future detailed atlas of the entire human brain.
• The project, funded by the NIH and published in 26 studies in the journal Cell, showcases the power of collaboration and advances made possible by new technologies like single-cell transcriptomics, which enable detailed gene expression analysis of individual brain cells.
• While promising, experts emphasize that further research is needed to fully understand disease connections, and the team aims to complete a comprehensive human brain atlas within two years, potentially revolutionizing neuroscience and brain disease treatment.