SOX9
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Related Articles from SNS
SOX9 regulates endothelial tip cell specification to promote cerebral and neuroretinal vascularization
Background: Tissue vascularization relies on the organotypic specification of endothelial tip cells to interpret local cues and guide angiogenic sprouts into specific tissue compartments. However, the molecular regulators controlling brain and retinal endothelial tip cell identity remain poorly understood. Methods: Endothelial-specific Sox9 loss-of-function mouse was combined with single-cell, spatial, and bulk RNA sequencing analyses of developing mouse brain and retinal vasculature, as...
iAstrocytes model cytokine influences on complement expression and neuronal network synchronization.
Astrocytes play essential roles in neuronal development, function, and disease, yet existing methods to derive astrocytes from human pluripotent stem cells (hPSCs) are complex and can involve months of in vitro maturation. We developed a genomic safe-harbor knock-in system for inducible expression of the astrogenic transcription factors NFIA, NFIB, and SOX9, enabling rapid and robust generation of functional induced astrocytes (iAstrocytes). Across five hPSC lines, NFIB-SOX9 and...
Whole-genome duplication shaped cell-type evolution in the vertebrate brain
Abstract The complex brains of vertebrates have more cell types than those of their closest relatives. Whole-genome duplications (WGDs) occurred during early vertebrate evolution1, but it is unclear whether the duplicated genes (ohnologues) facilitated cell-type evolution. Here using brain single-cell transcriptomes from five chordates—human2, mouse3, lizard4, lamprey5 and amphioxus—we report that many cell-type families with conserved core transcription factors in vertebrates do not show...