Abstract
Self-assembling brain spheroids derived from human stem cells closely emulate the tangled connectivity of the human brain, recapitulate aspects of organized tissue structure, and are relatively easy to manipulate compared to other existing three-dimensional (3D) cellular models. However, current platforms generate heterogeneously sized and short-lived spheroids, which do not robustly and reproducibly model human brain development and diseases. Here, we present a method to generate large-scale arrays of homogeneously sized 3D brain spheroids derived from human-induced pluripotent stem cells (hiPSCs) or immortalized neural progenitor cells to recapitulate Alzheimer’s disease (AD) pathology in vitro. When embedded in extracellular matrix, these brain spheroids develop extensive outward projection of neurites and form networks, which are mediated by thick bundles of dendrites. This array facilitates cost-effective, high-throughput drug screening and mechanistic studies to better understand human brain development and neurodegenerative conditions, such as AD .
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Acknowledgments
This work was supported by the National Institutes of Health (P30 NS045776). All microfabrication procedures of the brain spheroids array were performed at the BioMEMS Resource center (EB00002503). Scanning Electron Microscopy was performed at the Center for Nanoscale Systems (CNS) at Harvard University, supported by the National Science Foundation (Award No. 1541959). The authors acknowledge Anika Marand for her help with the brain spheroids extraction.
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von Maydell, D., Jorfi, M. (2021). A Synergistic Engineering Approach to Build Human Brain Spheroids. In: Ebrahimkhani, M.R., Hislop, J. (eds) Programmed Morphogenesis. Methods in Molecular Biology, vol 2258. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1174-6_11
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DOI: https://doi.org/10.1007/978-1-0716-1174-6_11
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