Primate ASPM knockout causes severe microcephaly and oligodendrocyte loss in the brain
Peer-Reviewed Publication
Updates every hour. Last Updated: 26-Dec-2025 15:11 ET (26-Dec-2025 20:11 GMT/UTC)
Mutations in the ASPM gene are the most common cause of primary hereditary microcephaly in humans, a condition characterized by a severely reduced brain size. While ASPM has been studied in rodents and ferrets, these models only partially recapitulate the human condition due to significant differences in brain structure and complexity, particularly the lack of a folded cerebral cortex (gyrification). To better model human brain development, this study investigated the consequences of ASPM knockout in a non-human primate, the cynomolgus monkey.
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