Evidence map›Paper›PMID 16121254›Full record

ArticlePLoS genetics2005

The zebrafish mutants dre, uki, and lep encode negative regulators of the hedgehog signaling pathway.

Marco J Koudijs, Marjo J den Broeder, Astrid Keijser, Erno Wienholds, Saskia Houwing, Ellen M H C van Rooijen, Robert Geisler, Fredericus J M van Eeden

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

43 citing papers in PubMed, 86 citations in OpenAlex.

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  16. Endothelial cilia are essential for developmental vascular integrity in zebrafish.Journal of the American Society of Nephrology : JASN · 2015
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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

8 authors at 2 institutions in 2 countries.

Marco J KoudijsHubrecht Laboratory, The Netherlands Institute for Developmental Biology, Utrecht, The Netherlands.
Marjo J den Broeder
Astrid Keijser
Erno Wienholds
Saskia Houwing
Ellen M H C van Rooijen
Robert Geisler
Fredericus J M van Eeden
Hubrecht Institute for Developmental Biology and Stem Cell Research · NLMax Planck Institute for Developmental Biology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proliferation is one of the basic processes that control embryogenesis. To identify factors involved in the regulation of proliferation, we performed a zebrafish genetic screen in which we used proliferating cell nuclear antigen (PCNA) expression as a readout. Two mutants, hu418B and hu540A, show increased PCNA expression. Morphologically both mutants resembled the dre (dreumes), uki (ukkie), and lep (leprechaun) mutant class and both are shown to be additional uki alleles. Surprisingly, although an increased size is detected of multiple structures in these mutant embryos, adults become dwarfs. We show that these mutations disrupt repressors of the Hedgehog (Hh) signaling pathway. The dre, uki, and lep loci encode Su(fu) (suppressor of fused), Hip (Hedgehog interacting protein), and Ptc2 (Patched2) proteins, respectively. This class of mutants is therefore unique compared to previously described Hh mutants from zebrafish genetic screens, which mainly show loss of Hh signaling. Furthermore, su(fu) and ptc2 mutants have not been described in vertebrate model systems before. Inhibiting Hh activity by cyclopamine rescues uki and lep mutants and confirms the overactivation of the Hh signaling pathway in these mutants. Triple uki/dre/lep mutants show neither an additive increase in PCNA expression nor enhanced embryonic phenotypes, suggesting that other negative regulators, possibly Ptc1, prevent further activation of the Hh signaling pathway. The effects of increased Hh signaling resulting from the genetic alterations in the uki, dre, and lep mutants differ from phenotypes described as a result of Hh overexpression and therefore provide additional insight into the role of Hh signaling during vertebrate development.

Indexed as

MutationAnimalsBody SizeCell ProliferationDwarfismEmbryo, NonmammalianHedgehog ProteinsProliferating Cell Nuclear AntigenSignal TransductionTrans-ActivatorsZebrafishHedgehog ProteinsProliferating Cell Nuclear AntigenTrans-Activators

Identifiers

PMID16121254
PMCPMC1189072
OpenAlexW2044469345

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.