The Wnt receptor Ryk is a negative regulator of mammalian dendrite morphogenesis.
The Wnt receptor Ryk is a negative regulator of mammalian dendrite morphogenesis.
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DOI:
10.1038/s41598-017-06140-z
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发表时间:
2017-07-20
影响因子:
4.6
通讯作者:
Cooper HM
中科院分区:
文献类型:
--
作者:
Lanoue V;Langford M;White A;Sempert K;Fogg L;Cooper HM
The unique dendritic architecture of a given neuronal subtype determines its synaptic connectivity and ability to integrate into functional neuronal networks. It is now clear that abnormal dendritic structure is associated with neuropsychiatric and neurodegenerative disorders. Currently, however, the nature of the extrinsic factors that limit dendritic growth and branching within predetermined boundaries in the mammalian brain is poorly understood. Here we identify the Wnt receptor Ryk as a novel negative regulator of dendritic arborisation. We demonstrate that loss of Ryk in mouse hippocampal and cortical neurons promotes excessive dendrite growth and branching in vitro. Conversely, overexpression of wildtype Ryk restricts these processes, confirming that Ryk acts to restrain dendrite arborisation. Furthermore, we identify a hitherto uncharacterized membrane proximal subdomain crucial for Ryk-mediated suppression of dendrite morphogenesis, suggesting that it may act through a novel signalling pathway to constrain dendrite complexity. We also demonstrate that Ryk performs a similar function in vivo as Ryk haploinsufficient postnatal animals exhibit excessive dendrite growth and branching in layer 2/3 pyramidal neurons of the somatosensory cortex. These findings reveal an essential role for Ryk in regulating dendrite complexity and raise the intriguing possibility that it may influence neural plasticity by modifying dendritic structure.
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DOI:
10.1083/jcb.201107021
发表时间:
2011-09-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Berndt JD;Aoyagi A;Yang P;Anastas JN;Tang L;Moon RT
通讯作者:
Moon RT
影响因子:
25
作者:
Liu, YB;Shi, J;Zou, YM
通讯作者:
Zou, YM
影响因子:
34.7
作者:
Koleske, Anthony J.
通讯作者:
Koleske, Anthony J.
DOI:
10.1523/jneurosci.4508-10.2010
发表时间:
2010-11-24
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Fenstermaker AG;Prasad AA;Bechara A;Adolfs Y;Tissir F;Goffinet A;Zou Y;Pasterkamp RJ
通讯作者:
Pasterkamp RJ
影响因子:
5.3
作者:
Keeble, Thomas R.;Halford, Michael M.;Cooper, Helen M.
通讯作者:
Cooper, Helen M.