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Large-Scale Cellular-Resolution Gene Profiling in Human Neocortex Reveals Species-Specific Molecular Signatures

2012; Cell Press; Volume: 149; Issue: 2 Linguagem: Inglês

10.1016/j.cell.2012.02.052

1097-4172

Hongkui Zeng, Elaine Shen, John G. Hohmann, Seung Wook Oh, Amy Bernard, Joshua J. Royall, Katie Glattfelder, Susan M. Sunkin, John Morris, Angela Guillozet-Bongaarts, Kimberly A. Smith, Amanda Ebbert, Beryl Swanson, Leonard Kuan, Damon T. Page, Caroline C. Overly, Ed S. Lein, Michael Hawrylycz, Patrick R. Hof, Thomas M. Hyde, Joel E. Kleinman, Allan R. Jones,

Bioinformatics and Genomic Networks

Although there have been major advances in elucidating the functional biology of the human brain, relatively little is known of its cellular and molecular organization. Here we report a large-scale characterization of the expression of ∼1,000 genes important for neural functions by in situ hybridization at a cellular resolution in visual and temporal cortices of adult human brains. These data reveal diverse gene expression patterns and remarkable conservation of each individual gene's expression among individuals (95%), cortical areas (84%), and between human and mouse (79%). A small but substantial number of genes (21%) exhibited species-differential expression. Distinct molecular signatures, comprised of genes both common between species and unique to each, were identified for each major cortical cell type. The data suggest that gene expression profile changes may contribute to differential cortical function across species, and in particular, a shift from corticosubcortical to more predominant corticocortical communications in the human brain.