Abstract：
:Neural circuits consist of highly precise connections among specific types of neurons that serve a common functional goal. How neurons distinguish among different synaptic targets to form functionally precise circuits remains largely unknown. Here, we show that during development, the adhesion molecule cadherin-6 (Cdh6) is expressed by a subset of retinal ganglion cells (RGCs) and also by their targets in the brain. All of the Cdh6-expressing retinorecipient nuclei mediate non-image-forming visual functions. A screen of mice expressing GFP in specific subsets of RGCs revealed that Cdh3-RGCs which also express Cdh6 selectively innervate Cdh6-expressing retinorecipient targets. Moreover, in Cdh6-deficient mice, the axons of Cdh3-RGCs fail to properly innervate their targets and instead project to other visual nuclei. These findings provide functional evidence that classical cadherins promote mammalian CNS circuit development by ensuring that axons of specific cell types connect to their appropriate synaptic targets.
journal_name
Neuronjournal_title
Neuronauthors
Osterhout JA,Josten N,Yamada J,Pan F,Wu SW,Nguyen PL,Panagiotakos G,Inoue YU,Egusa SF,Volgyi B,Inoue T,Bloomfield SA,Barres BA,Berson DM,Feldheim DA,Huberman ADdoi
10.1016/j.neuron.2011.07.006subject
Has Abstractpub_date
2011-08-25 00:00:00pages
632-9issue
4eissn
0896-6273issn
1097-4199pii
S0896-6273(11)00602-7journal_volume
71pub_type
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