The Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.

<h4>Background</h4>Genetic analysis of the Drosophila septate junctions has greatly contributed to our understanding of the mechanisms controlling the assembly of these adhesion structures, which bear strong similarities with the vertebrate tight junctions and the paranodal septate junct...

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Autores principales: Assia Hijazi, Marc Haenlin, Lucas Waltzer, Fernando Roch
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Publicado: Public Library of Science (PLoS) 2011
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Acceso en línea:https://doaj.org/article/de2caa52473f482c9bc6f1e2400cbd86
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spelling oai:doaj.org-article:de2caa52473f482c9bc6f1e2400cbd862021-11-18T06:57:19ZThe Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.1932-620310.1371/journal.pone.0017763https://doaj.org/article/de2caa52473f482c9bc6f1e2400cbd862011-03-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21423573/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Genetic analysis of the Drosophila septate junctions has greatly contributed to our understanding of the mechanisms controlling the assembly of these adhesion structures, which bear strong similarities with the vertebrate tight junctions and the paranodal septate junctions. These adhesion complexes share conserved molecular components and have a common function: the formation of paracellular barriers restraining the diffusion of solutes through epithelial and glial envelopes.<h4>Methodology/principal findings</h4>In this work we characterise the function of the Drosophila cold gene, that codes for a protein belonging to the Ly6 superfamily of extracellular ligands. Analysis of cold mutants shows that this gene is specifically required for the organisation of the septate junctions in epithelial tissues and in the nervous system, where its contribution is essential for the maintenance of the blood-brain barrier. We show that cold acts in a cell autonomous way, and we present evidence indicating that this protein could act as a septate junction component.<h4>Conclusion/significance</h4>We discuss the specific roles of cold and three other Drosophila members of the Ly6 superfamily that have been shown to participate in a non-redundant way in the process of septate junction assembly. We propose that vertebrate Ly6 proteins could fulfill analogous roles in tight junctions and/or paranodal septate junctions.Assia HijaziMarc HaenlinLucas WaltzerFernando RochPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 3, p e17763 (2011)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Assia Hijazi
Marc Haenlin
Lucas Waltzer
Fernando Roch
The Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.
description <h4>Background</h4>Genetic analysis of the Drosophila septate junctions has greatly contributed to our understanding of the mechanisms controlling the assembly of these adhesion structures, which bear strong similarities with the vertebrate tight junctions and the paranodal septate junctions. These adhesion complexes share conserved molecular components and have a common function: the formation of paracellular barriers restraining the diffusion of solutes through epithelial and glial envelopes.<h4>Methodology/principal findings</h4>In this work we characterise the function of the Drosophila cold gene, that codes for a protein belonging to the Ly6 superfamily of extracellular ligands. Analysis of cold mutants shows that this gene is specifically required for the organisation of the septate junctions in epithelial tissues and in the nervous system, where its contribution is essential for the maintenance of the blood-brain barrier. We show that cold acts in a cell autonomous way, and we present evidence indicating that this protein could act as a septate junction component.<h4>Conclusion/significance</h4>We discuss the specific roles of cold and three other Drosophila members of the Ly6 superfamily that have been shown to participate in a non-redundant way in the process of septate junction assembly. We propose that vertebrate Ly6 proteins could fulfill analogous roles in tight junctions and/or paranodal septate junctions.
format article
author Assia Hijazi
Marc Haenlin
Lucas Waltzer
Fernando Roch
author_facet Assia Hijazi
Marc Haenlin
Lucas Waltzer
Fernando Roch
author_sort Assia Hijazi
title The Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.
title_short The Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.
title_full The Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.
title_fullStr The Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.
title_full_unstemmed The Ly6 protein coiled is required for septate junction and blood brain barrier organisation in Drosophila.
title_sort ly6 protein coiled is required for septate junction and blood brain barrier organisation in drosophila.
publisher Public Library of Science (PLoS)
publishDate 2011
url https://doaj.org/article/de2caa52473f482c9bc6f1e2400cbd86
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