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Stem Cell Hub, California Institute for Regenerative Medicine CESCG at UC Santa Cruz

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Molecular Identity of Human Outer Radial Glia during Cortical Development

Lab information [ Lab website | CIRM grants ]

Experimental design

Flowchart

Summary

Radial glia, the neural stem cells of the neocortex, are located in two niches: the ventricular zone and outer subventricular zone. Although outer subventricular zone radial glia may generate the majority of human cortical neurons, their molecular features remain elusive. By analyzing gene expression across single cells, we find that outer radial glia preferentially express genes related to extracellular matrix formation, migration, and stemness, including TNC, PTPRZ1, FAM107A, HOPX, and LIFR. Using dynamic imaging, immunostaining, and clonal analysis, we relate these molecular features to distinctive behaviors of outer radial glia, demonstrate the necessity of STAT3 signaling for their cell cycle progression, and establish their extensive proliferative potential. These results suggest that outer radial glia directly support the subventricular niche through local production of growth factors, potentiation of growth factor signals by extracellular matrix proteins, and activation of self-renewal pathways, thereby enabling the developmental and evolutionary expansion of the human neocortex.

Publications

Molecular identity of human outer radial glia during cortical development. Pollen AA et al. Cell. 2015 Sep 24;163(1):55-67.

Primary files

Lab analysis

Biomarkers, protocols, clustering or other supplementary files supplied by the lab

Secondary analysis

Expression Matrix (lab-generated) | Expression matrix (UCSC) | QC Metrics

CESCG Center Standard Analysis

FastQC | Picard | RSEM | STAR | bigWig

Tertiary analysis

Cell Browser

Sample Psychic

SCIMITAR

RIGGLE

SurfacePlots

JCVI BioMarkers


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