Characterizing cellular diversity at different levels of biological organization and across data modalities is a prerequisite to understanding the function of cell types in the brain. Classification of neurons is also essential to manipulate cell types in controlled ways and to understand their variation and vulnerability in brain disorders. The BRAIN Initiative Cell Census Network (BICCN) is an integrated network of data-generating centers, data archives, and data standards developers, with the goal of systematic multimodal brain cell type profiling and characterization. The emphasis of the BICCN is on the whole mouse brain, with demonstration of prototype feasibility for human and nonhuman primate (NHP) brains. Hawrylycz et al. provide a guide to the cellular and spatial approaches employed by the BICCN, and to accessing and using these data and extensive resources, including the BRAIN Cell Data Center (BCDC), which serves to manage and integrate data across the ecosystem. The authors illustrate the power of the BICCN data ecosystem through vignettes highlighting several BICCN analysis and visualization tools. The combined BICCN ecosystem provides a comprehensive resource for the exploration and analysis of cell types in the brain. The image shows an example of full neuron morphology mapped to the Allen Common Coordinate System.
Image Credit: Zhixi Yun and Hanchuan Peng
Essay
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