Brain organoids: advances, applications and challenges.

Development

Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School for Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA

Published: April 2019

AI Article Synopsis

  • Brain organoids are 3D cell structures derived from pluripotent stem cells that mimic aspects of the embryonic human brain, making them useful for studying brain development and disorders.
  • They successfully replicate many features of early brain development but still fall short in areas like forming distinct cortical layers and complex neural connections.
  • The text highlights recent advancements in brain organoid methods, comparisons with the embryonic brain, and future directions for improving their application in research.

Article Abstract

Brain organoids are self-assembled three-dimensional aggregates generated from pluripotent stem cells with cell types and cytoarchitectures that resemble the embryonic human brain. As such, they have emerged as novel model systems that can be used to investigate human brain development and disorders. Although brain organoids mimic many key features of early human brain development at molecular, cellular, structural and functional levels, some aspects of brain development, such as the formation of distinct cortical neuronal layers, gyrification, and the establishment of complex neuronal circuitry, are not fully recapitulated. Here, we summarize recent advances in the development of brain organoid methodologies and discuss their applications in disease modeling. In addition, we compare current organoid systems to the embryonic human brain, highlighting features that currently can and cannot be recapitulated, and discuss perspectives for advancing current brain organoid technologies to expand their applications.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6503989PMC
http://dx.doi.org/10.1242/dev.166074DOI Listing

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