Evidence map›Paper›PMID 21284876›Full record

ArticleBMC developmental biology2011

A regulatory network of two galectins mediates the earliest steps of avian limb skeletal morphogenesis.

Ramray Bhat, Kenneth M Lerea, Hong Peng, Herbert Kaltner, Hans-Joachim Gabius, Stuart A Newman

Open access · hybridAbstract read
In one paragraph

Article in BMC developmental biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

23 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
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  4. N-terminal tail prolines of Gal-3 mediate its oligomerization/phase separation.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  11. 'Biogeneric' developmental processes: drivers of major transitions in animal evolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
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  13. Nuclear repartitioning of galectin-1 by an extracellular glycan switch regulates mammary morphogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2016
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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

6 authors at 2 institutions in 2 countries.

Ramray BhatDepartment of Cell Biology and Anatomy, New York Medical College, Valhalla, NY 10595, USA. newman@nymc.edu
Kenneth M Lerea
Hong Peng
Herbert Kaltner
Hans-Joachim Gabius
Stuart A Newman
New York Medical College · USLudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe skeletal elements of vertebrate embryonic limbs are prefigured by rod- and spot-like condensations of precartilage mesenchymal cells. The formation of these condensations depends on cell-matrix and cell-cell interactions, but how they are initiated and patterned is as yet unresolved.

resultsHere we provide evidence that galectins, β-galactoside-binding lectins with β-sandwich folding, play fundamental roles in these processes. We show that among the five chicken galectin (CG) genes, two, CG-1A, and CG-8, are markedly elevated in expression at prospective sites of condensation in vitro and in vivo, with their protein products appearing earlier in development than any previously described marker. The two molecules enhance one another's gene expression but have opposite effects on condensation formation and cartilage development in vivo and in vitro: CG-1A, a non-covalent homodimer, promotes this process, while the tandem-repeat-type CG-8 antagonizes it. Correspondingly, knockdown of CG-1A inhibits the formation of skeletal elements while knockdown of CG-8 enhances it. The apparent paradox of mutual activation at the gene expression level coupled with antagonistic roles in skeletogenesis is resolved by analysis of the direct effect of the proteins on precartilage cells. Specifically, CG-1A causes their aggregation, whereas CG-8, which has no adhesive function of its own, blocks this effect. The developmental appearance and regulation of the unknown cell surface moieties ("ligands") to which CG-1A and CG-8 bind were indicative of specific cognate- and cross-regulatory interactions.

conclusionOur findings indicate that CG-1A and CG-8 constitute a multiscale network that is a major mediator, earlier-acting than any previously described, of the formation and patterning of precartilage mesenchymal condensations in the developing limb. This network functions autonomously of limb bud signaling centers or other limb bud positional cues.

Indexed as

MorphogenesisAnimalsBone and BonesChick EmbryoChickensExtremitiesFluorescent Antibody TechniqueGalectinsGene ExpressionGene Expression Regulation, DevelopmentalGene Knockdown TechniquesIn Situ HybridizationLimb BudsMesenchymal Stem CellsMesodermOrganogenesisGalectins

Identifiers

PMID21284876
PMCPMC3042966
OpenAlexW2155737355

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.