Evidence map›Paper›PMID 17202185›Full record

ArticleDevelopment (Cambridge, England)2007

Controlled overexpression of Pax6 in vivo negatively autoregulates the Pax6 locus, causing cell-autonomous defects of late cortical progenitor proliferation with little effect on cortical arealization.

Martine Manuel, Petrina A Georgala, Catherine B Carr, Simon Chanas, Dirk A Kleinjan, Ben Martynoga, John O Mason, Michael Molinek, Jeni Pinson, Thomas Pratt and 6 more

Open access · greenAbstract read
In one paragraph

Article in Development (Cambridge, England), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

69 citing papers in PubMed, 116 citations in OpenAlex.

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  15. Structural and Functional Aspects of the Neurodevelopmental GeneFrontiers in molecular neuroscience · 2021
    Review
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9 more citing papers are in PubMed but not listed here.

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

16 authors at 1 institution in 1 country.

Martine ManuelGenes and Development Group, Centres for Integrative Physiology and Neuroscience Research, Hugh Robson Building, George Square, University of Edinburgh, Edinburgh, UK. martine.manuel@ed.ac.uk
Petrina A Georgala
Catherine B Carr
Simon Chanas
Dirk A Kleinjan
Ben Martynoga
John O Mason
Michael Molinek
Jeni Pinson
Thomas Pratt
Jane C Quinn
T Ian Simpson
David A Tyas
Veronica van Heyningen
John D West
David J Price
Western General Hospital · GB

Funding

Medical Research Council G0401376Medical Research Council MC_U127527199Wellcome Trust 071513
6 · The paper itself

Abstract

Levels of expression of the transcription factor Pax6 vary throughout corticogenesis in a rostro-lateral(high) to caudo-medial(low) gradient across the cortical proliferative zone. Previous loss-of-function studies have indicated that Pax6 is required for normal cortical progenitor proliferation, neuronal differentiation, cortical lamination and cortical arealization, but whether and how its level of expression affects its function is unclear. We studied the developing cortex of PAX77 YAC transgenic mice carrying several copies of the human PAX6 locus with its full complement of regulatory regions. We found that PAX77 embryos express Pax6 in a normal spatial pattern, with levels up to three times higher than wild type. By crossing PAX77 mice with a new YAC transgenic line that reports Pax6 expression (DTy54), we showed that increased expression is limited by negative autoregulation. Increased expression reduces proliferation of late cortical progenitors specifically, and analysis of PAX77<---->wild-type chimeras indicates that the defect is cell autonomous. We analyzed cortical arealization in PAX77 mice and found that, whereas the loss of Pax6 shifts caudal cortical areas rostrally, Pax6 overexpression at levels predicted to shift rostral areas caudally has very little effect. These findings indicate that Pax6 levels are stabilized by autoregulation, that the proliferation of cortical progenitors is sensitive to altered Pax6 levels and that cortical arealization is not.

Indexed as

AnimalsBase SequenceCell ProliferationCerebral CortexDNA PrimersEmbryonic Stem CellsEye ProteinsGene DosageGene Expression Regulation, DevelopmentalHomeodomain ProteinsHomeostasisHumansMiceMice, TransgenicModels, NeurologicalPaired Box Transcription FactorsDNA PrimersEye ProteinsHomeodomain ProteinsPaired Box Transcription FactorsPAX6 protein, humanPax6 protein, mousePAX6 Transcription FactorRecombinant ProteinsRepressor Proteins

Identifiers

PMID17202185
PMCPMC2386558
OpenAlexW2066699807

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.