Evidence map›Paper›PMID 16957055›Full record

ArticleMolecular biology of the cell2006

Sphingosine 1-phosphate induces myoblast differentiation through Cx43 protein expression: a role for a gap junction-dependent and -independent function.

R Squecco, C Sassoli, F Nuti, M Martinesi, F Chellini, D Nosi, S Zecchi-Orlandini, F Francini, L Formigli, E Meacci

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

40 citing papers in PubMed, 91 citations in OpenAlex.

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  13. S1P/S1P Receptor Signaling in Neuromuscolar Disorders.International journal of molecular sciences · 2019
    Review
  14. Review
  15. Review
  16. Protein⁻Protein Interactions with Connexin 43: Regulation and Function.International journal of molecular sciences · 2018
    Review
  17. Review
  18. Article
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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

10 authors at 2 institutions in 2 countries.

R SqueccoDepartments of Biochemical Sciences, University of Florence, Interuniversity Institute of Myology, Florence I-50134, Italy.
C Sassoli
F Nuti
M Martinesi
F Chellini
D Nosi
S Zecchi-Orlandini
F Francini
L Formigli
E Meacci
Biochemical Society · GBUniversity of Florence · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although sphingosine 1-phosphate (S1P) has been considered a potent regulator of skeletal muscle biology, acting as a physiological anti-mitogenic and prodifferentiating agent, its downstream effectors are poorly known. In the present study, we provide experimental evidence for a novel mechanism by which S1P regulates skeletal muscle differentiation through the regulation of gap junctional protein connexin (Cx) 43. Indeed, the treatment with S1P greatly enhanced Cx43 expression and gap junctional intercellular communication during the early phases of myoblast differentiation, whereas the down-regulation of Cx43 by transfection with short interfering RNA blocked myogenesis elicited by S1P. Moreover, calcium and p38 MAPK-dependent pathways were required for S1P-induced increase in Cx43 expression. Interestingly, enforced expression of mutated Cx43(Delta130-136) reduced gap junction communication and totally inhibited S1P-induced expression of the myogenic markers, myogenin, myosin heavy chain, caveolin-3, and myotube formation. Notably, in S1P-stimulated myoblasts, endogenous or wild-type Cx43 protein, but not the mutated form, coimmunoprecipitated and colocalized with F-actin and cortactin in a p38 MAPK-dependent manner. These data, together with the known role of actin remodeling in cell differentiation, strongly support the important contribution of gap junctional communication, Cx43 expression and Cx43/cytoskeleton interaction in skeletal myogenesis elicited by S1P.

Indexed as

AnimalsBiomarkersCalciumCell DifferentiationConnexin 43Cytoskeletal ProteinsDown-RegulationElectric ConductivityEnzyme InhibitorsGap JunctionsGene ExpressionKineticsLysophospholipidsMiceMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3BiomarkersCalciumConnexin 43Cytoskeletal ProteinsEnzyme InhibitorsLysophospholipidsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Mutant ProteinsMyogeninp38 Mitogen-Activated Protein KinasesSphingosinesphingosine 1-phosphate

Identifiers

PMID16957055
PMCPMC1635397
OpenAlexW1979946797

What OpenQuestion holds

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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.