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- W2953284184 abstract "Direct comparisons of human and non-human primate brain tissue have the potential to reveal molecular pathways underlying remarkable specializations of the human brain. However, chimpanzee tissue is largely inaccessible during neocortical neurogenesis when differences in brain size first appear. To identify human-specific features of cortical development, we leveraged recent innovations that permit generating pluripotent stem cell-derived cerebral organoids from chimpanzee. First, we systematically evaluated the fidelity of organoid models to primary human and macaque cortex, finding organoid models preserve gene regulatory networks related to cell types and developmental processes but exhibit increased metabolic stress. Second, we identified 261 genes differentially expressed in human compared to chimpanzee organoids and macaque cortex. Many of these genes overlap with human-specific segmental duplications and a subset suggest increased PI3K/AKT/mTOR activation in human outer radial glia. Together, our findings establish a platform for systematic analysis of molecular changes contributing to human brain development and evolution." @default.
- W2953284184 created "2019-06-27" @default.
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- W2953284184 date "2018-12-19" @default.
- W2953284184 modified "2023-10-13" @default.
- W2953284184 title "Establishing Cerebral Organoids as Models of Human-Specific Brain Evolution" @default.
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- W2953284184 doi "https://doi.org/10.1101/500934" @default.
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