Evidence map›Paper›PMID 23537390›Full record

ArticleBMC biology2013

The buccohypophyseal canal is an ancestral vertebrate trait maintained by modulation in sonic hedgehog signaling.

Roman H Khonsari, Maisa Seppala, Alan Pradel, Hugo Dutel, Gaël Clément, Oleg Lebedev, Sarah Ghafoor, Michaela Rothova, Abigael Tucker, John G Maisey and 11 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in BMC biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
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  3. Mouse embryo phenotyping using X-ray microCT.Frontiers in cell and developmental biology · 2022
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  10. Discovery, Diagnosis, and Etiology of Craniofacial Ciliopathies.Cold Spring Harbor perspectives in biology · 2017
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Genetic regulation of murine pituitary development.Journal of molecular endocrinology · 2015
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

21 authors at 10 institutions in 6 countries.

Roman H KhonsariDepartment of Craniofacial Development and Stem Cell Research, Comprehensive Biomedical Research Center, Dental Institute, King's College London, London, UK. roman.khonsari@kcl.ac.uk
Maisa Seppala
Alan Pradel
Hugo Dutel
Gaël Clément
Oleg Lebedev
Sarah Ghafoor
Michaela Rothova
Abigael Tucker
John G Maisey
Chen-Ming Fan
Maiko Kawasaki
Atsushi Ohazama
Paul Tafforeau
Brunella Franco
Jill Helms
Courtney J Haycraft
Albert David
Philippe Janvier
Martyn T Cobourne
Paul T Sharpe
King's College London · GBCentre National de la Recherche Scientifique · FRAmerican Museum of Natural History · USGuy's Hospital · GBMedical University of South Carolina · USCarnegie Institution for Science · USCentre Hospitalier Universitaire de Nantes · FREuropean Synchrotron Radiation Facility · FRInstitute of Paleontology A A Borisyak · RUUniversity of Naples Federico II · IT

Funding

Formation of the Enteric Nervous SystemR01DK084963 · NIDDK · CARNEGIE INSTITUTION OF WASHINGTON, D.C. · PI FAN, CHEN-MING · 2010 to 2013
$1.3M
Medical Research Council G0901599NIDDK NIH HHS R01 DK084963
6 · The paper itself

Abstract

backgroundThe pituitary gland is formed by the juxtaposition of two tissues: neuroectoderm arising from the basal diencephalon, and oral epithelium, which invaginates towards the central nervous system from the roof of the mouth. The oral invagination that reaches the brain from the mouth is referred to as Rathke's pouch, with the tip forming the adenohypophysis and the stalk disappearing after the earliest stages of development. In tetrapods, formation of the cranial base establishes a definitive barrier between the pituitary and oral cavity; however, numerous extinct and extant vertebrate species retain an open buccohypophyseal canal in adulthood, a vestige of the stalk of Rathke's pouch. Little is currently known about the formation and function of this structure. Here we have investigated molecular mechanisms driving the formation of the buccohypophyseal canal and their evolutionary significance.

resultsWe show that Rathke's pouch is located at a boundary region delineated by endoderm, neural crest-derived oral mesenchyme and the anterior limit of the notochord, using CD1, R26R-Sox17-Cre and R26R-Wnt1-Cre mouse lines. As revealed by synchrotron X-ray microtomography after iodine staining in mouse embryos, the pouch has a lobulated three-dimensional structure that embraces the descending diencephalon during pituitary formation. Polaris(fl/fl); Wnt1-Cre, Ofd1(-/-) and Kif3a(-/-) primary cilia mouse mutants have abnormal sonic hedgehog (Shh) signaling and all present with malformations of the anterior pituitary gland and midline structures of the anterior cranial base. Changes in the expressions of Shh downstream genes are confirmed in Gas1(-/-) mice. From an evolutionary perspective, persistence of the buccohypophyseal canal is a basal character for all vertebrates and its maintenance in several groups is related to a specific morphology of the midline that can be related to modulation in Shh signaling.

conclusionThese results provide insight into a poorly understood ancestral vertebrate structure. It appears that the opening of the buccohypophyseal canal depends upon Shh signaling and that modulation in this pathway most probably accounts for its persistence in phylogeny.

Indexed as

Signal TransductionAnimalsCell Cycle ProteinsCiliaEctodermExtinction, BiologicalFishesFossilsGene Expression Regulation, DevelopmentalGPI-Linked ProteinsHedgehog ProteinsJawMiceMouthMutationPhylogenyCell Cycle ProteinsGas1 protein, mouseGPI-Linked ProteinsHedgehog Proteins

Identifiers

PMID23537390
PMCPMC3635870
OpenAlexW2115592743

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.