Endoglycan plays a role in axon guidance by modulating cell adhesion

Axon navigation depends on the interactions between guidance molecules along the trajectory and specific receptors on the growth cone. However, our in vitro and in vivo studies on the role of Endoglycan demonstrate that in addition to specific guidance cue – receptor interactions, axon guidance depe...

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Main Authors: Thomas Baeriswyl, Alexandre Dumoulin, Martina Schaettin, Georgia Tsapara, Vera Niederkofler, Denise Helbling, Evelyn Avilés, Jeannine A Frei, Nicole H Wilson, Matthias Gesemann, Beat Kunz, Esther T Stoeckli
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2021-03-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/64767
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author Thomas Baeriswyl
Alexandre Dumoulin
Martina Schaettin
Georgia Tsapara
Vera Niederkofler
Denise Helbling
Evelyn Avilés
Jeannine A Frei
Nicole H Wilson
Matthias Gesemann
Beat Kunz
Esther T Stoeckli
author_facet Thomas Baeriswyl
Alexandre Dumoulin
Martina Schaettin
Georgia Tsapara
Vera Niederkofler
Denise Helbling
Evelyn Avilés
Jeannine A Frei
Nicole H Wilson
Matthias Gesemann
Beat Kunz
Esther T Stoeckli
author_sort Thomas Baeriswyl
collection DOAJ
description Axon navigation depends on the interactions between guidance molecules along the trajectory and specific receptors on the growth cone. However, our in vitro and in vivo studies on the role of Endoglycan demonstrate that in addition to specific guidance cue – receptor interactions, axon guidance depends on fine-tuning of cell-cell adhesion. Endoglycan, a sialomucin, plays a role in axon guidance in the central nervous system of chicken embryos, but it is neither an axon guidance cue nor a receptor. Rather, Endoglycan acts as a negative regulator of molecular interactions based on evidence from in vitro experiments demonstrating reduced adhesion of growth cones. In the absence of Endoglycan, commissural axons fail to properly navigate the midline of the spinal cord. Taken together, our in vivo and in vitro results support the hypothesis that Endoglycan acts as a negative regulator of cell-cell adhesion in commissural axon guidance.
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spelling doaj.art-3135680495e24540ae49470517d4f7fe2022-12-22T04:32:29ZengeLife Sciences Publications LtdeLife2050-084X2021-03-011010.7554/eLife.64767Endoglycan plays a role in axon guidance by modulating cell adhesionThomas Baeriswyl0Alexandre Dumoulin1https://orcid.org/0000-0002-2420-6877Martina Schaettin2Georgia Tsapara3Vera Niederkofler4Denise Helbling5Evelyn Avilés6Jeannine A Frei7Nicole H Wilson8Matthias Gesemann9Beat Kunz10Esther T Stoeckli11https://orcid.org/0000-0002-8485-0648Department of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandDepartment of Molecular Life Sciences and Neuroscience Center Zurich, University of Zurich, Zurich, SwitzerlandAxon navigation depends on the interactions between guidance molecules along the trajectory and specific receptors on the growth cone. However, our in vitro and in vivo studies on the role of Endoglycan demonstrate that in addition to specific guidance cue – receptor interactions, axon guidance depends on fine-tuning of cell-cell adhesion. Endoglycan, a sialomucin, plays a role in axon guidance in the central nervous system of chicken embryos, but it is neither an axon guidance cue nor a receptor. Rather, Endoglycan acts as a negative regulator of molecular interactions based on evidence from in vitro experiments demonstrating reduced adhesion of growth cones. In the absence of Endoglycan, commissural axons fail to properly navigate the midline of the spinal cord. Taken together, our in vivo and in vitro results support the hypothesis that Endoglycan acts as a negative regulator of cell-cell adhesion in commissural axon guidance.https://elifesciences.org/articles/64767sialomucincommissural axonslive imagingPodocalyxin-like 2floor plate
spellingShingle Thomas Baeriswyl
Alexandre Dumoulin
Martina Schaettin
Georgia Tsapara
Vera Niederkofler
Denise Helbling
Evelyn Avilés
Jeannine A Frei
Nicole H Wilson
Matthias Gesemann
Beat Kunz
Esther T Stoeckli
Endoglycan plays a role in axon guidance by modulating cell adhesion
eLife
sialomucin
commissural axons
live imaging
Podocalyxin-like 2
floor plate
title Endoglycan plays a role in axon guidance by modulating cell adhesion
title_full Endoglycan plays a role in axon guidance by modulating cell adhesion
title_fullStr Endoglycan plays a role in axon guidance by modulating cell adhesion
title_full_unstemmed Endoglycan plays a role in axon guidance by modulating cell adhesion
title_short Endoglycan plays a role in axon guidance by modulating cell adhesion
title_sort endoglycan plays a role in axon guidance by modulating cell adhesion
topic sialomucin
commissural axons
live imaging
Podocalyxin-like 2
floor plate
url https://elifesciences.org/articles/64767
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