Evidence map›Paper›PMID 19855021›Full record

ArticleDevelopment (Cambridge, England)2009

Zebrafish zic2a patterns the forebrain through modulation of Hedgehog-activated gene expression.

Nicholas A Sanek, Aaron A Taylor, Molly K Nyholm, Yevgenya Grinblat

Open access · bronzeAbstract read
In one paragraph

Article in Development (Cambridge, England), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Loss of Active Neurogenesis in the Adult Shark Retina.Frontiers in cell and developmental biology · 2021
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Gene Signature in Sessile Serrated Polyps Identifies Colon Cancer Subtype.Cancer prevention research (Philadelphia, Pa.) · 2016
    Article
  11. Development of astrocytes in the vertebrate eye.Developmental dynamics : an official publication of the American Association of Anatomists · 2014
    Article
  12. Article
  13. Article
  14. Article
  15. Spatiotemporal expression of Zic genes during vertebrate inner ear development.Developmental dynamics : an official publication of the American Association of Anatomists · 2013
    Article
  16. Shh/Boc signaling is required for sustained generation of ipsilateral projecting ganglion cells in the mouse retina.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
    Article
  17. Article
  18. Article
  19. Article
  20. Toward a better understanding of human eye disease insights from the zebrafish, Danio rerio.Progress in molecular biology and translational science · 2011
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Nicholas A SanekDepartment of Zoology and Anatomy, University of Wisconsin, Madison, WI 53706, USA.
Aaron A Taylor
Molly K Nyholm
Yevgenya Grinblat
University of Wisconsin–Madison · US

Funding

Role for zic genes in the developing midbrain.R01GM076244 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI GRINBLAT, YEVGENYA · 2006 to 2010
$1.4M
NIGMS NIH HHS R01 GM076244PHS HHS R01
6 · The paper itself

Abstract

Holoprosencephaly (HPE) is the most common congenital malformation of the forebrain in human. Several genes with essential roles during forebrain development have been identified because they cause HPE when mutated. Among these are genes that encode the secreted growth factor Sonic hedgehog (Shh) and the transcription factors Six3 and Zic2. In the mouse, Six3 and Shh activate each other's transcription, but a role for Zic2 in this interaction has not been tested. We demonstrate that in zebrafish, as in mouse, Hh signaling activates transcription of six3b in the developing forebrain. zic2a is also activated by Hh signaling, and represses six3b non-cell-autonomously, i.e. outside of its own expression domain, probably through limiting Hh signaling. Zic2a repression of six3b is essential for the correct formation of the prethalamus. The diencephalon-derived optic stalk (OS) and neural retina are also patterned in response to Hh signaling. We show that zebrafish Zic2a limits transcription of the Hh targets pax2a and fgf8a in the OS and retina. The effects of Zic2a depletion in the forebrain and in the OS and retina are rescued by blocking Hh signaling or by increasing levels of the Hh antagonist Hhip, suggesting that in both tissues Zic2a acts to attenuate the effects of Hh signaling. These data uncover a novel, essential role for Zic2a as a modulator of Hh-activated gene expression in the developing forebrain and advance our understanding of a key gene regulatory network that, when disrupted, causes HPE.

Indexed as

Gene Expression Regulation, DevelopmentalAnimalsEye ProteinsHomeobox Protein SIX3Homeodomain ProteinsNerve Tissue ProteinsPAX2 Transcription FactorProsencephalonTranscription FactorsZebrafishZebrafish ProteinsEye ProteinsHomeobox Protein SIX3Homeodomain ProteinsNerve Tissue ProteinsPAX2 Transcription FactorTranscription FactorsZebrafish ProteinsZic2a protein, zebrafish

Identifiers

PMID19855021
PMCPMC2766342
OpenAlexW2065532397

What OpenQuestion holds

Textmetadata
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.