胶质瘤中间质细胞衍生因子-1及神经生长因子的表达及临床意义

目的 探讨间质细胞衍生因子-1(SDF-1)及神经生长因子(NGF)在胶质瘤中的表达及临床意义.方法 收集手术切除的人脑胶质瘤病理标本86例为观察组,其中观察组按不同病理级别分为Ⅰ级15例为Ⅰ组,Ⅱ级24例为Ⅱ组,Ⅲ级26例为Ⅲ组,Ⅳ级21例为Ⅳ组,同期随机选择颅脑外伤患者正常脑组织标本84例为对照组,2组组织均使用实时荧光定量聚合酶链式反应(RT-PCR)技术检测SDF-1与NGF mRNA,同时采用免疫组化法检测2组组织中SDF-1与NGF蛋白的表达情况.比较2组组织中SDF-1与NGF mRNA及蛋白表达情况.结果 观察组SDF-1与NGF mRNA基因表达量及蛋白阳性率均高于对照组(P<0.05);Ⅳ组SDF-1与NGF mRNA基因表达量及蛋白阳性率均高于Ⅲ组;Ⅲ组SDF-1与NGF mRNA基因表达量及蛋白阳性率均高于Ⅱ组;Ⅱ组SDF-1与NGF mRNA基因表达量及蛋白阳性率均高于Ⅰ组,胶质瘤组织中SDF-1与NGF mRNA基因表达量及蛋白阳性率随病理级别的增高而增高(P<0.05);胶质瘤组织中SDF-1 mRNA表达量及蛋白阳性率呈正相关(r=0.95,P<0.05),NGF mRNA表达量及蛋白阳性率呈正相关(r=0.96,P<0.05);SDF-1和NGF高表达均是预测胶质瘤预后不良的独立因素(P<0.01),SDF-1和NGF的高表达与胶质瘤患者整体不良预后显著相关.结论 胶质瘤中SDF-1与NGF高表达对病变进展有一定促进作用,二者与肿瘤的病理级别密切相关,两者相互作用,SDF-1与NGF在胶质瘤的发生发展中扮演重要的角色,有望为胶质瘤的临床检测及治疗提供新思路.

Expression and clinical significance of stromal cell-derived factor-1 and nerve growth factor in gliomas

Objective To investigate the expression and clinical significance of stromal cell-derived factor-1 (SDF-1) and nerve growth factor (NGF) in gliomas.Methods Eighty-six pathological specimens of human brain glioma that were collected in our hospital from January 2012 to February 2016 were enrolled as observation group,moreover,which was redivided into 4 subgroups according to different pathological grade,including 15 cases in grade Ⅰ group,24 cases in grade Ⅱ group,26 cases in grade Ⅲ group,21 cases in grade Ⅳ group,moreover,the other 84 cases of brain tissue specimens of patients with craniocerebral trauma were seclected as control group.The expression levels of SDF-1 and NGF mRNA were detected by Real-time quantitative polymerase chain reaction (RT-PCR), at the same time,the expression levels of SDF-1 and NGF protein were detected by immunohistochemistry.Results The expression levels of SDF-1 and NGF mRNA gene and protein in observation group were significantly higher than those in control group (P<0.05).The expression levels of SDF-1 gene,NGF mRNA and protein in grade Ⅳ group were significantly higher than those in grade Ⅲ group,which in grade Ⅲ group were significantly higher than those in grade Ⅱ group, moreover, which in grade Ⅱ group were significantly higher than those in grade Ⅰ group, besides,the expression levels of SDF-1, NGF mRNA gene and protein in glioma were increased with the increase of pathological grade (P<0.05).Moreover the expression levels of SDF-1 mRNA in gliomas were positively correlated to positive rates of protein (r=0.95,P<0.05),and the expression levels of NGF mRNA were positively correlated to positive rates of protein (r=0.96,P<0.05).Moreover the high expression of SDF-1 NGF was independent factors to predict poor prognosis of glioma (P<0.01),and the high expression of SDF-1 NGF was closely correlated to whole poor prognosis of patients with glioma.Conclusion The high expression of SDF-1 and NGF in gliomas has a certain role in promoting progression of disease,both of them are closely correlated with pathological grade,thus,both factors play an important role in pathogenesis and development of glioma,it is expected to provide new ideas for clinical detection and treatment of glioma.