Evidence map›Paper›PMID 27049876›Full record

ArticleCell stem cell2016

2D and 3D Stem Cell Models of Primate Cortical Development Identify Species-Specific Differences in Progenitor Behavior Contributing to Brain Size.

Tomoki Otani, Maria C Marchetto, Fred H Gage, Benjamin D Simons, Frederick J Livesey

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Cell stem cell, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 180 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
180citing papers in PubMed, 2 pooled it
23.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

180 citing papers in PubMed, 2 syntheses or guidelines pooled it, 358 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Using Brain Organoids to Explore Human Neurobiology.Cellular and molecular neurobiology · 2026
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  19. Dissecting Gene Regulatory Networks Governing Human Cortical Cell Fate.bioRxiv : the preprint server for biology · 2025
    Article
  20. Article

120 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Tomoki OtaniGurdon Institute and Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK.
Maria C MarchettoLaboratory of Genetics, Salk Institute, North Torrey Pines Road, La Jolla, CA 92037, USA.
Fred H GageLaboratory of Genetics, Salk Institute, North Torrey Pines Road, La Jolla, CA 92037, USA.
Benjamin D SimonsGurdon Institute, Cambridge Stem Cell Institute, and Department of Physics, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK.
Frederick J LiveseyGurdon Institute and Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK. Electronic address: rick@gurdon.cam.ac.uk.
Torrey Pines Institute For Molecular Studies · USUniversity of Cambridge · GBWellcome/Cancer Research UK Gurdon Institute · GB

Funding

Medical Research Council MC_PC_12009Medical Research Council MR/L023784/1Medical Research Council MR/L023784/2Wellcome Trust
6 · The paper itself

Abstract

Variation in cerebral cortex size and complexity is thought to contribute to differences in cognitive ability between humans and other animals. Here we compare cortical progenitor cell output in humans and three nonhuman primates using directed differentiation of pluripotent stem cells (PSCs) in adherent two-dimensional (2D) and organoid three-dimensional (3D) culture systems. Clonal lineage analysis showed that primate cortical progenitors proliferate for a protracted period of time, during which they generate early-born neurons, in contrast to rodents, where this expansion phase largely ceases before neurogenesis begins. The extent of this additional cortical progenitor expansion differs among primates, leading to differences in the number of neurons generated by each progenitor cell. We found that this mechanism for controlling cortical size is regulated cell autonomously in culture, suggesting that primate cerebral cortex size is regulated at least in part at the level of individual cortical progenitor cell clonal output.

Indexed as

Models, BiologicalAnimalsCell CycleCell DifferentiationCells, CulturedCerebral CortexHumansNeuronsOrganoidsOrgan SizePluripotent Stem CellsPrimatesSpecies Specificity

Identifiers

PMID27049876
PMCPMC4826446
OpenAlexW2330595735

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.