Evidence map›Paper›PMID 27214567›Full record

ArticleNature neuroscience2016

Hedgehog signaling promotes basal progenitor expansion and the growth and folding of the neocortex.

Lei Wang, Shirui Hou, Young-Goo Han

Abstract read
In one paragraph

Article in Nature neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 1 pooled it
11.8field-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

101 citing papers in PubMed, 1 synthesis or guideline pooled it, 192 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Primary cilia and neural computation.Journal of biomedical science · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Shaping the Neocortex: Radial Glia and Astrocytes in Development and Evolution.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. The Control of Cortical Folding: Multiple Mechanisms, Multiple Models.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2024
    Review
  17. Review
  18. Article
  19. Article
  20. Indirect neurogenesis in space and time.Nature reviews. Neuroscience · 2024
    Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Lei WangDepartment of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.
Shirui HouDepartment of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.
Young-Goo HanDepartment of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.ORCID 0000-0002-4008-294X
St. Jude Children's Research Hospital · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHARLES ROBERTS · 1985 to 2026
$166.9M
NCI NIH HHS P30 CA021765
6 · The paper itself

Abstract

The unique mental abilities of humans are rooted in the immensely expanded and folded neocortex, which reflects the expansion of neural progenitors, especially basal progenitors including basal radial glia (bRGs) and intermediate progenitor cells (IPCs). We found that constitutively active Sonic hedgehog (Shh) signaling expanded bRGs and IPCs and induced folding in the otherwise smooth mouse neocortex, whereas the loss of Shh signaling decreased the number of bRGs and IPCs and the size of the neocortex. SHH signaling was strongly active in the human fetal neocortex but Shh signaling was not strongly active in the mouse embryonic neocortex, and blocking SHH signaling in human cerebral organoids decreased the number of bRGs. Mechanistically, Shh signaling increased the initial generation and self-renewal of bRGs and IPC proliferation in mice and the initial generation of bRGs in human cerebral organoids. Thus, robust SHH signaling in the human fetal neocortex may contribute to bRG and IPC expansion and neocortical growth and folding.

Indexed as

AnimalsCell DifferentiationCell ProliferationGene Expression Regulation, DevelopmentalHedgehog ProteinsMice, TransgenicNeocortexNeural Stem CellsSignal TransductionHedgehog Proteins

Identifiers

PMID27214567
PMCPMC4925239
OpenAlexW2405973985

What OpenQuestion holds

Textmetadata
LicenceTDM
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.