NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.

Cell adhesion molecules play a central role in mediating axonal tract development within the nascent nervous system. NF-protocadherin (NFPC), a member of the non-clustered protocadherin family, has been shown to regulate retinal ganglion cell (RGC) axon and dendrite initiation, as well as influencin...

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Main Authors: Louis C Leung, William A Harris, Christine E Holt, Michael Piper
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4619323?pdf=render
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author Louis C Leung
William A Harris
Christine E Holt
Michael Piper
author_facet Louis C Leung
William A Harris
Christine E Holt
Michael Piper
author_sort Louis C Leung
collection DOAJ
description Cell adhesion molecules play a central role in mediating axonal tract development within the nascent nervous system. NF-protocadherin (NFPC), a member of the non-clustered protocadherin family, has been shown to regulate retinal ganglion cell (RGC) axon and dendrite initiation, as well as influencing axonal navigation within the mid-optic tract. However, whether NFPC mediates RGC axonal behaviour at other positions within the optic pathway remains unclear. Here we report that NFPC plays an important role in RGC axonogenesis, but not in intraretinal guidance. Moreover, axons with reduced NFPC levels exhibit insensitivity to Netrin-1, an attractive guidance cue expressed at the optic nerve head. Netrin-1 induces rapid turnover of NFPC localized to RGC growth cones, suggesting that the regulation of NFPC protein levels may underlie Netrin-1-mediated entry of RGC axons into the optic nerve head. At the tectum, we further reveal a function for NFPC in controlling RGC axonal entry into the final target area. Collectively, our results expand our understanding of the role of NFPC in RGC guidance and illustrate that this adhesion molecule contributes to axon behaviour at multiple points in the optic pathway.
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spelling doaj.art-7cf6357349a743ebb6af05024ef4375a2022-12-21T23:24:01ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011010e014129010.1371/journal.pone.0141290NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.Louis C LeungWilliam A HarrisChristine E HoltMichael PiperCell adhesion molecules play a central role in mediating axonal tract development within the nascent nervous system. NF-protocadherin (NFPC), a member of the non-clustered protocadherin family, has been shown to regulate retinal ganglion cell (RGC) axon and dendrite initiation, as well as influencing axonal navigation within the mid-optic tract. However, whether NFPC mediates RGC axonal behaviour at other positions within the optic pathway remains unclear. Here we report that NFPC plays an important role in RGC axonogenesis, but not in intraretinal guidance. Moreover, axons with reduced NFPC levels exhibit insensitivity to Netrin-1, an attractive guidance cue expressed at the optic nerve head. Netrin-1 induces rapid turnover of NFPC localized to RGC growth cones, suggesting that the regulation of NFPC protein levels may underlie Netrin-1-mediated entry of RGC axons into the optic nerve head. At the tectum, we further reveal a function for NFPC in controlling RGC axonal entry into the final target area. Collectively, our results expand our understanding of the role of NFPC in RGC guidance and illustrate that this adhesion molecule contributes to axon behaviour at multiple points in the optic pathway.http://europepmc.org/articles/PMC4619323?pdf=render
spellingShingle Louis C Leung
William A Harris
Christine E Holt
Michael Piper
NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.
PLoS ONE
title NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.
title_full NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.
title_fullStr NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.
title_full_unstemmed NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.
title_short NF-Protocadherin Regulates Retinal Ganglion Cell Axon Behaviour in the Developing Visual System.
title_sort nf protocadherin regulates retinal ganglion cell axon behaviour in the developing visual system
url http://europepmc.org/articles/PMC4619323?pdf=render
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