Brain-wide Maps Reveal Stereotyped Cell-Type-Based Cortical Architecture and Subcortical Sexual Dimorphism.

Brain-wide Maps Reveal Stereotyped Cell-Type-Based Cortical Architecture and Subcortical Sexual Dimorphism.
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DOI:
10.1016/j.cell.2017.09.020
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发表时间:
2017-10-05
期刊:
影响因子:
64.5
通讯作者:
Osten P
Osten P
中科院分区:
生物学1区
文献类型:
--
作者:
Kim Y;Yang GR;Pradhan K;Venkataraju KU;Bota M;García Del Molino LC;Fitzgerald G;Ram K;He M;Levine JM;Mitra P;Huang ZJ;Wang XJ;Osten P

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The stereotyped features of neuronal circuits are those most likely to explain the remarkable capacity of the brain to process information and govern behaviors, yet it has not been possible to comprehensively quantify neuronal distributions across animals or genders due to the size and complexity of the mammalian brain. Here we apply our quantitative brain-wide (qBrain) mapping platform to document the stereotyped distributions of mainly inhibitory cell types. We discover an unexpected cortical organizing principle: sensory-motor areas are dominated by output-modulating parvalbumin-positive interneurons, whereas association, including frontal, areas are dominated by input-modulating somatostatin-positive interneurons. Furthermore, we identify local cell type distributions with more cells in the female brain in seven out of eight sexually dimorphic subcortical areas, in contrast to the overall larger brains in males. The qBrain resource can be further mined to link stereotyped aspects of neuronal distributions to known and unknown functions of diverse brain regions.
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