The Nogo Receptor Family Restricts Synapse Number in the Developing Hippocampus

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The Nogo Receptor Family Restricts Synapse Number in the Developing Hippocampus

Neuronal development is characterized by a period of exuberant synaptic growth that is well studied. However, the mechanisms that restrict this process are less clear. Here we demonstrate that glycosylphosphatidylinositol-anchored cell-surface receptors of the Nogo Receptor family (NgR1, NgR2, and NgR3) restrict excitatory synapse formation. Loss of any one of the NgRs results in an increase in...

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Synapses are highly plastic, i.e. they have the ability to change their signaling strength both in the shortand long-term (e.g. long-term potentiation LTP) in response to specific patterns of activity. In the developing brain synaptic plasticity promotes activity-dependent development, whereas in the mature brain synaptic plasticity forms the basis for learning and memory. Although both develop...

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Our understanding of mechanisms that regulate the differentiation of specific classes of synapses is limited. Here, we investigate the formation of synapses between hippocampal dentate gyrus (DG) neurons and their target CA3 neurons and find that DG neurons preferentially form synapses with CA3 rather than DG or CA1 neurons in culture, suggesting that specific interactions between DG and CA3 ne...

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Experience-dependent expression of Nogo-A and Nogo receptor in the developing rat visual cortex

Nogo-A and Nogo receptor (NgR) expression in the visual cortex following a critical developmental period (postnatal days 20-60) has been previously shown. However, little is known regarding Nogo-A and NgR expression between postnatal day 0 and initiation of the critical period. The present study analyzed Nogo-A and NgR expression at four different time points: postnatal day 0 (P0), before criti...

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ژورنال

عنوان ژورنال: Neuron

سال: 2012

ISSN: 0896-6273

DOI: 10.1016/j.neuron.2011.11.029