Cited by 1,094Neurogenesis and neuroplasticity mechanismsPluripotent Stem Cells ResearchSingle-cell and spatial transcriptomics

Individual brain organoids reproducibly form cell diversity of the human cerebral cortex

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Velasco, Silvia, Kedaigle, Amanda J., Simmons, Sean K., Nash, Allison, Rocha, Marina, Quadrato, Giorgia, Paulsen, Bruna, Nguyen, Lan +4 more·2019·Nature

Abstract

Experimental models of the human brain are needed for basic understanding of its development and disease 1. Human brain organoids hold unprecedented promise for this purpose; however, they are plagued by high organoid-to-organoid variability 2,3. This has raised doubts as to whether developmental processes of the human brain can occur outside the context of embryogenesis with a degree of reproducibility that is comparable to the endogenous tissue. Here we show that an organoid model of the dorsal forebrain can reliably generate a rich diversity of cell types appropriate for the human cerebral cortex. We performed single-cell RNA-sequencing analysis of 166,242 cells isolated from 21 individual organoids, finding that 95% of the organoids generate a virtually indistinguishable compendium of cell types, following similar developmental trajectories and with a degree of organoid-to-organoid variability comparable to that of individual endogenous brains. Furthermore, organoids derived from different stem cell lines show consistent reproducibility in the cell types produced. The data demonstrate that reproducible development of the complex cellular diversity of the central nervous system does not require the context of the embryo, and that establishment of terminal cell identity is a highly constrained process that can emerge from diverse stem cell origins and growth environments.

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  • Guided cortical organoid differentiation yields highly reproducible organoids compared with unguided organoid differentiation.

    “Furthermore, several studies have shown that guided cortical organoid differentiation yields highly reproducible organoids as compared to unguided organoid differentiation (72–74).”
  • Organoid development followed the expected temporal changes.

    “Organoid development followed the expected temporal changes (Lancaster et al., 2013; Velasco et al., 2019; Watanabe et al., 2017; Yoon et al., 2019; Figures 1B–1D; Figure S1A).”
  • scRNA-seq analysis of human intestinal and brain organoids used random forest classifiers to identify the cell types in their organoid cultures.

    “scRNA-seq analysis of human intestinal and brain organoids used random forest classifiers to identify the cell types in their organoid cultures;73,74”
  • All cell sub-types were present in WA25 and DSP-GFP organoids, but in different proportions.

    “All cell sub-types were present in WA25 and DSP-GFP organoids, but in different proportions (Fig. 2b, c), suggesting further protocol optimization may be needed to reduce variability19.”

    From Hair-bearing human skin generated entirely from pluripotent stem cells (2020) · cites this paper as [19]

    The paper’s Methods (Statistics and Reproducibility) lists the stem cell lines studied, but not WA25 or DSP-GFP. The paper reports consistent overall cell-type proportions across its own lines, so its findings cannot verify which subtypes were present in WA25 and DSP-GFP organoids or whether their proportions differed (searched: WA25, DSP-GFP, cell-type proportions). (LLM, conf=0.76)

    Experimental — accuracy not yet measured

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Authors
Velasco, S., Kedaigle, A. J., Simmons, S. K., Nash, A., Rocha, M., Quadrato, G., Paulsen, B., Nguyen, L., Adiconis, X., Regev, A., Levin, J. Z., & Arlotta, P.
Affiliations
Broad Institute (US)
Corresponding author
Arlotta, Paola
Venue
Nature
Published
2019-06
Volume
570
Issue
7762
Pages
523-527
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2949020598
Cited by
1,094
References
39
Citations by year
2026: 145 · 2025: 156 · 2024: 184 · 2023: 131 · 2022: 148 · 2021: 142 · 2020: 150 · 2019: 35 · 2018: 1
FWCI
44.71
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • Broad Institute
  • Stanley Center for Psychiatric Research, Broad Institute
  • Klarman Cell Observatory, Broad Institute
  • National Institute of Mental Health (P50MH094271, U01MH115727, R01MH112940)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
Keywords
human brain organoids, cortical development, cell type diversity, dorsal forebrain, stem cell origin, reproducibility, single-cell transcriptomics
MeSH terms
RNA-Seq, Cell Line, Cerebral Cortex, Female, Fetus, Humans, Male, Organoids, Time Factors, Reproducibility of Results, Prosencephalon, Tissue Culture Techniques, Induced Pluripotent Stem Cells, Single-Cell Analysis, Transcriptome

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