Abstract
Several myelin-derived proteins have been identified as components of central nervous system (CNS) myelin, which prevents axonal regeneration in the adult vertebrate CNS. The discovery of the receptor for these proteins was a major step toward understanding the failure of axon regeneration. The receptor complex consists of at least three elements: the p75 receptor (p75NTR), the Nogo receptor and LINGO-1. Downstream from the receptor complex, RhoA activation has been shown to be a key element of the signaling mechanism of these proteins. Rho activation arrests axon growth, and blocking Rho activation promotes axon regeneration in vivo. Recent studies have identified conventional protein kinase C as an additional necessary component for axon growth inhibition. Possible crosstalk downstream of these signals should be explored to clarify all the inhibitory signals and may provide an efficient molecular target against injuries to the CNS.
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Yamashita, T., Fujitani, M., Yamagishi, S. et al. Multiple signals regulate axon regeneration through the nogo receptor complex. Mol Neurobiol 32, 105–111 (2005). https://doi.org/10.1385/MN:32:2:105
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DOI: https://doi.org/10.1385/MN:32:2:105