期刊
TRENDS IN NEUROSCIENCES
卷 26, 期 4, 页码 193-198出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S0166-2236(03)00062-6
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CNS myelin inhibits axonal outgrowth in vitro and is one of several obstacles to functional recovery following spinal cord injury. Central to our current understanding of myelin-mediated inhibition are the membrane protein Nogo and the Nogo-66 receptor (NgR). New findings implicate NgR as a point of convergence in signal transduction for several myelin-associated inhibitors. Additional studies have identified a potential coreceptor for NgR as p75(NTR), and a second-messenger pathway involving RhoA that inhibits neurite elongation. Although these findings expand our understanding of the molecular determinants of adult CNS axonal regrowth, the physiological roles of myelin-associated inhibitors in the intact adult CNS remain ill-defined.
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