A cross-species spatial transcriptomic atlas of the human and non-human primate basal ganglia

bioRxiv (Cold Spring Harbor Laboratory) 2025 7 cites
2025:22026:5
2025 2026
7

Madeleine N. Hewitt, Meghan A. Turner, Nelson Johansen, Delissa McMillen, Shu Dan, Mike DeBerardine, Augustin Ruiz, Meng-Xuan Huang et al.

Abstract

Abstract The basal ganglia are interconnected subcortical nuclei with complex topographical organization that orchestrate goal-directed behaviors and are implicated in neurodegenerative movement disorders. We generated a cellular-resolution, spatial transcriptomic atlas of the basal ganglia in human, rhesus macaque, and common marmoset, sampling over one million cells in each species. By integrating spatial data with a cross-species, consensus snRNA-seq cell type taxonomy, this atlas reveals conserved principles of molecular organization within and across structures. The cellular architecture is complex but highly stereotyped, with gene expression gradients superimposed onto discrete compartments. Extensive spatial sampling illuminates 3D gradients of molecular organization in the striatum and reveals cell type-specific core and shell compartments in the primate internal globus pallidus, which is conserved with mouse. This unified, cross-species spatial transcriptomic atlas will be a foundational resource for characterizing the molecular and functional organization of the basal ganglia and their roles in health and disease.

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