An atlas of cortical arealization identifies dynamic molecular signatures.
An atlas of cortical arealization identifies dynamic molecular signatures.
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皮质区域化图谱可识别动态分子特征。
DOI:
10.1038/s41586-021-03910-8
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发表时间:
2021-10
期刊:
影响因子:
64.8
通讯作者:
Kriegstein AR
中科院分区:
文献类型:
--
作者:
Bhaduri A;Sandoval-Espinosa C;Otero-Garcia M;Oh I;Yin R;Eze UC;Nowakowski TJ;Kriegstein AR
The human brain is subdivided into distinct anatomical structures. The neocortex, one of these structures, in turn encompasses dozens of distinct specialized cortical areas. Early morphogenetic gradients are known to establish early brain regions and cortical areas, but how early patterns result in finer and more discrete spatial differences remains poorly understood. Here, we use single-cell RNA-sequencing to profile ten major brain structures and six neocortical areas during peak neurogenesis and early gliogenesis. Within the neocortex, we find that early in the second trimester a large number of genes are differentially expressed across distinct cortical areas in all cell types, including radial glia, the neural progenitors of the cortex. However, the abundance of areal transcriptomic signatures increases as radial glia differentiate into intermediate progenitor cells and ultimately give rise to excitatory neurons. Using an automated, multiplexed single-molecule fluorescent in situ hybridization (smFISH) approach, we discover that laminar gene expression patterns are highly dynamic across cortical regions. Together, our data suggest that early cortical areal patterning is defined by strong, mutually exclusive frontal and occipital gene expression signatures, with resulting gradients giving rise to the specification of areas between these two poles throughout successive developmental timepoints.
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影响因子:
--
作者:
Fazeli E;Roy NH;Follain G;Laine RF;von Chamier L;Hänninen PE;Eriksson JE;Tinevez JY;Jacquemet G
通讯作者:
Jacquemet G
影响因子:
16.2
作者:
Cadwell, Cathryn R.;Bhaduri, Aparna;Mostajo-Radji, Mohammed A.;Keefe, Matthew G.;Nowakowski, Tomasz J.
通讯作者:
Nowakowski, Tomasz J.
影响因子:
3
作者:
Langfelder P;Horvath S
通讯作者:
Horvath S
影响因子:
64.8
作者:
Lui, Jan H.;Nowakowski, Tomasz J.;Pollen, Alex A.;Javaherian, Ashkan;Kriegstein, Arnold R.;Oldham, Michael C.
通讯作者:
Oldham, Michael C.
影响因子:
25
作者:
Eze UC;Bhaduri A;Haeussler M;Nowakowski TJ;Kriegstein AR
通讯作者:
Kriegstein AR