近年来 ,神经发育和再生的分子生物学原理已成为神经科学界倍受关注的研究领域 ,尤其对神经纤维生长 (轴突导向 )和神经细胞迁移的分子机制方面 ,进行了深入的探讨。国内外学者已研究出一些蛋白质在轴突导向的经典通路上起重要的作用[1] ,目前已明确的神经生长导向因子包括ephr In recent years, the principle of molecular biology of neurodevelopment and regeneration has become a field of attention in the neuroscience field. In particular, the molecular mechanisms of nerve fiber growth (axon guidance) and neural cell migration have been discussed in depth. Domestic and foreign scholars have studied some of the proteins in the axonal guidance of the classical pathway plays an important role [1], has been identified nerve growth-oriented factors include ephr