Evidence map›Paper›PMID 26621827›Full record

ArticleBiology open2015

Introducing Pitt-Hopkins syndrome-associated mutations of TCF4 to Drosophila daughterless.

Laura Tamberg, Mari Sepp, Tõnis Timmusk, Mari Palgi

Open access · goldAbstract read
In one paragraph

Article in Biology open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.2field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
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  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Daughterless, theDisease models & mechanisms · 2020
    Article
  12. Article
  13. Article
  14. Review
  15. Common Pathophysiology in Multiple Mouse Models of Pitt-Hopkins Syndrome.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  16. Article
  17. Article
  18. Article
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.

Laura TambergLaboratory of Molecular Neurobiology, Department of Gene Technology, Tallinn University of Technology, Akadeemia Rd.15, Tallinn 12618, Estonia.
Mari SeppLaboratory of Molecular Neurobiology, Department of Gene Technology, Tallinn University of Technology, Akadeemia Rd.15, Tallinn 12618, Estonia.
Tõnis TimmuskLaboratory of Molecular Neurobiology, Department of Gene Technology, Tallinn University of Technology, Akadeemia Rd.15, Tallinn 12618, Estonia.
Mari PalgiLaboratory of Molecular Neurobiology, Department of Gene Technology, Tallinn University of Technology, Akadeemia Rd.15, Tallinn 12618, Estonia mari.palgi@ttu.ee.
Tallinn University of Technology · EE

Funding

Resource Component: Acquisition, maintenance and distribution of Drosophila stocksP40OD018537 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI Annette L. Parks · 2014 to 2026
$13.5M
DROSOPHILA GENOMICS RESOURCE CENTERP40OD010949 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI Andrew Zelhof · 2012 to 2026
$9.4M
NIH HHS P40 OD010949NIH HHS P40 OD018537
6 · The paper itself

Abstract

Pitt-Hopkins syndrome (PTHS) is caused by haploinsufficiency of Transcription factor 4 (TCF4), one of the three human class I basic helix-loop-helix transcription factors called E-proteins. Drosophila has a single E-protein, Daughterless (Da), homologous to all three mammalian counterparts. Here we show that human TCF4 can rescue Da deficiency during fruit fly nervous system development. Overexpression of Da or TCF4 specifically in adult flies significantly decreases their survival rates, indicating that these factors are crucial even after development has been completed. We generated da transgenic fruit fly strains with corresponding missense mutations R578H, R580W, R582P and A614V found in TCF4 of PTHS patients and studied the impact of these mutations in vivo. Overexpression of wild type Da as well as human TCF4 in progenitor tissues induced ectopic sensory bristles and the rough eye phenotype. By contrast, overexpression of Da(R580W) and Da(R582P) that disrupt DNA binding reduced the number of bristles and induced the rough eye phenotype with partial lack of pigmentation, indicating that these act dominant negatively. Compared to the wild type, Da(R578H) and Da(A614V) were less potent in induction of ectopic bristles and the rough eye phenotype, respectively, suggesting that these are hypomorphic. All studied PTHS-associated mutations that we introduced into Da led to similar effects in vivo as the same mutations in TCF4 in vitro. Consequently, our Drosophila models of PTHS are applicable for further studies aiming to unravel the molecular mechanisms of this disorder.

Indexed as

bHLHDaughterlessDrosophila melanogasterIntellectual disabilityNervous systemPitt-Hopkins syndrome

Identifiers

PMID26621827
PMCPMC4736037
OpenAlexW2214603529

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.