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Self-Organizing 3D Human Choroid Plexus-Ventricle-Cortical Organoids

Shaker, M. R.; Cooper-White, J.; Wolvetang, E. J.

2020-10-01 neuroscience
10.1101/2020.09.30.321554 bioRxiv
Show abstract

Both the choroid plexus (CP) and the cortex are derived from the rostral neural tube during early embryonic development. In addition to producing CSF, the CP secretes essential factors that orchestrate cortical development and later neurogenesis. Previous brain modeling efforts with human pluripotent stem cells (hPSCs) generated either cortical or CP tissues in 3D culture. Here, we used hPSC-derived neuroectodermal cells, the building blocks of the anterior body, to simultaneously generate CP that forms ventricles and cortical cells in organoids (CVCOs), which can be maintained as 3D organoid cultures. Large scale culture revealed reproducibility of the protocol independent of cell lines, clones or batches. CVCOs contain mature and functional CP that projects multiple cilia into the ventricle-like fluid filled cysts and is in direct contact with appropriately patterned cortical cells. CVCOs thus recapitulate key features of developing forebrain structures observed in in vivo and constitute a useful for dissecting the role of CP in human forebrain development in health and disease.

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