结论IGF-I作为神经胶质细胞的有丝分裂因子，其表达随脑胶质瘤恶性程度的增高而升高，表明IGF-I可作为反映脑胶质瘤细胞增殖能力的指标；
Conclusion Acting as a mitotic factor of glial cells , IGF-I is expressed highly with the malignant level of gliomas increasing . So it suggests that IGF-I can be regarded as an marker of proliferation ability of glial cells .
神经胶质丝