Keywords Central nervous system;Bone marrow stromal cells;Brain-derived neurotrophic factor;Protein-tyrosine kinase receptor B;Transfection;Cytology;Tumorigenic ability;

• 中枢神经系统;骨髓基质细胞;脑源性神经营养因子;蛋白酪氨酸激酶受体B;基因转染;细胞学;致瘤性;