Turtle interacts with borderless in regulating glial extension and axon ensheathment

Abstract Proper recognition between axons and glial processes is required for the establishment of axon ensheathment in the developing nervous system. Recent studies have begun to reveal molecular events underlying developmental control of axon-glia recognition. In our previous work, we showed that...

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Main Authors: Yixu Chen, Scott Cameron, Wen-Tzu Chang, Yong Rao
Format: Article
Language:English
Published: BMC 2017-05-01
Series:Molecular Brain
Online Access:http://link.springer.com/article/10.1186/s13041-017-0299-6
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author Yixu Chen
Scott Cameron
Wen-Tzu Chang
Yong Rao
author_facet Yixu Chen
Scott Cameron
Wen-Tzu Chang
Yong Rao
author_sort Yixu Chen
collection DOAJ
description Abstract Proper recognition between axons and glial processes is required for the establishment of axon ensheathment in the developing nervous system. Recent studies have begun to reveal molecular events underlying developmental control of axon-glia recognition. In our previous work, we showed that the transmembrane protein Borderless (Bdl) is specifically expressed in wrapping glia (WG), and is required for the extension of glial processes and the ensheathment of photoreceptor axons in the developing Drosophila visual system. The exact mechanism by which Bdl mediates axon-glia recognition, however, remains unknown. Here, we present evidence showing that Bdl interacts with the Ig transmembrane protein Turtle (Tutl). Tutl is specifically expressed in photoreceptor axons. Loss of tutl in photoreceptors, like loss of bdl in WG, disrupts glial extension and axon ensheatment. Epistasis analysis shows that Tutl interacts genetically with Bdl. Tutl interacts with Bdl in trans in cultured cells. We propose that Tutl interacts with Bdl in mediating axon-glia recognition for WG extension and axon ensheathment.
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spelling doaj.art-907e6dd60308463085deff1e729c08c42022-12-22T02:09:42ZengBMCMolecular Brain1756-66062017-05-0110111110.1186/s13041-017-0299-6Turtle interacts with borderless in regulating glial extension and axon ensheathmentYixu Chen0Scott Cameron1Wen-Tzu Chang2Yong Rao3McGill Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, McGill University Health CentreMcGill Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, McGill University Health CentreMcGill Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, McGill University Health CentreMcGill Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, McGill University Health CentreAbstract Proper recognition between axons and glial processes is required for the establishment of axon ensheathment in the developing nervous system. Recent studies have begun to reveal molecular events underlying developmental control of axon-glia recognition. In our previous work, we showed that the transmembrane protein Borderless (Bdl) is specifically expressed in wrapping glia (WG), and is required for the extension of glial processes and the ensheathment of photoreceptor axons in the developing Drosophila visual system. The exact mechanism by which Bdl mediates axon-glia recognition, however, remains unknown. Here, we present evidence showing that Bdl interacts with the Ig transmembrane protein Turtle (Tutl). Tutl is specifically expressed in photoreceptor axons. Loss of tutl in photoreceptors, like loss of bdl in WG, disrupts glial extension and axon ensheatment. Epistasis analysis shows that Tutl interacts genetically with Bdl. Tutl interacts with Bdl in trans in cultured cells. We propose that Tutl interacts with Bdl in mediating axon-glia recognition for WG extension and axon ensheathment.http://link.springer.com/article/10.1186/s13041-017-0299-6
spellingShingle Yixu Chen
Scott Cameron
Wen-Tzu Chang
Yong Rao
Turtle interacts with borderless in regulating glial extension and axon ensheathment
Molecular Brain
title Turtle interacts with borderless in regulating glial extension and axon ensheathment
title_full Turtle interacts with borderless in regulating glial extension and axon ensheathment
title_fullStr Turtle interacts with borderless in regulating glial extension and axon ensheathment
title_full_unstemmed Turtle interacts with borderless in regulating glial extension and axon ensheathment
title_short Turtle interacts with borderless in regulating glial extension and axon ensheathment
title_sort turtle interacts with borderless in regulating glial extension and axon ensheathment
url http://link.springer.com/article/10.1186/s13041-017-0299-6
work_keys_str_mv AT yixuchen turtleinteractswithborderlessinregulatingglialextensionandaxonensheathment
AT scottcameron turtleinteractswithborderlessinregulatingglialextensionandaxonensheathment
AT wentzuchang turtleinteractswithborderlessinregulatingglialextensionandaxonensheathment
AT yongrao turtleinteractswithborderlessinregulatingglialextensionandaxonensheathment