Title | In vivo modeling of human neuron dynamics and Down syndrome |
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Authors | Raquel Real, Manuel Peter, Antonio Trabalza, Shabana Khan, Mark Smith, Joana Dopp, Samuel Barnes, Ayiba Momoh, Alessio Strano, Volpi, E., Graham W Knott, F. J. Livesey and Vincenzo De Paola |
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Abstract | Harnessing the potential of human stem cells for modeling the physiology and diseases of cortical circuitry requires monitoring cellular dynamics in vivo. We show that human induced pluripotent stem cell (iPSC)-derived cortical neurons transplanted into the adult mouse cortex consistently organized into large (up to ~100 mm3) vascularized neuron-glia territories with complex cytoarchitecture. Longitudinal imaging of >4000 grafted developing human neurons revealed that neuronal arbors refined via branch-specific retraction; human synaptic networks substantially restructured over 4 months, with balanced rates of synapse formation and elimination; and oscillatory population activity mirrored the patterns of fetal neural networks. Lastly, we found increased synaptic stability and reduced oscillations in transplants from two individuals with Down syndrome, demonstrating the potential of in vivo imaging in human tissue grafts for patient-specific modeling of cortical development, physiology, and pathogenesis. |
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Article number | eaau1810 |
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Journal | Apollo - University of Cambridge Repository |
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Journal citation | 362 (6416), p. eaau1810 |
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ISSN | 0036-8075 |
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Year | 2018 |
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Publisher | American Association for the Advancement of Science |
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Accepted author manuscript | |
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Digital Object Identifier (DOI) | https://doi.org/10.17863/cam.46476 |
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PubMed ID | 30309905 |
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Publication dates |
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Published online | 11 Oct 2018 |
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Published in print | 16 Nov 2018 |
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Published | 28 Nov 2019 |
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