目的探讨IgG、Gab2、PTEN在人脑胶质瘤中的表达及其与患者预后的关系。方法采用免疫组化SP二步法检测IgG、Gab2、PTEN在55例胶质瘤和20例正常脑组织中的表达,原位杂交检测IgG m RNA在胶质瘤组织中的表达。结果胶质瘤组织中有IgG蛋白及Ig...目的探讨IgG、Gab2、PTEN在人脑胶质瘤中的表达及其与患者预后的关系。方法采用免疫组化SP二步法检测IgG、Gab2、PTEN在55例胶质瘤和20例正常脑组织中的表达,原位杂交检测IgG m RNA在胶质瘤组织中的表达。结果胶质瘤组织中有IgG蛋白及IgG m RNA表达,Ig G、Gab2、PTEN的表达阳性率在正常脑组织与胶质瘤组差异均有显著性(5.0%vs.69.0%,5.0%vs.52.7%,85.0%vs.25.5%,均P<0.05),胶质瘤中IgG与Gab2的表达呈正相关(r=0.312 4,P<0.05),IgG与PTEN表达呈负相关(r=-0.422,P<0.05)。结论胶质瘤中IgG、Gab2高表达,PTEN低表达可能在胶质瘤的发生发展中起一定作用。展开更多
The growth factor receptor-bound protein 2 （Grb2） -associated binder （Gab） proteins are intracellular scaffolding/ docking molecules,and participate in multiple signaling pathways,usually acting as the downstream ...The growth factor receptor-bound protein 2 （Grb2） -associated binder （Gab） proteins are intracellular scaffolding/ docking molecules,and participate in multiple signaling pathways,usually acting as the downstream effector of protein-tyrosine kinases （PTKs） -triggered signal transduction pathway.When phosphorylated by PTKs,Gab proteins can recruit several signaling molecules （p85,SHP2,and Crk） ,and subsequently activate multiple transmitting signals that are critical for cell growth,survival,differentiation and apoptosis.Recently,it has been reported that Gab2 polymorphism is associated with the increase in the risk of Alzheimer’s disease （AD） and is involved in the pathogenesis of AD.This review mainly focuses on the structure and function of Gab2 protein and its role in the pathogenesis of AD.展开更多
文摘目的探讨IgG、Gab2、PTEN在人脑胶质瘤中的表达及其与患者预后的关系。方法采用免疫组化SP二步法检测IgG、Gab2、PTEN在55例胶质瘤和20例正常脑组织中的表达,原位杂交检测IgG m RNA在胶质瘤组织中的表达。结果胶质瘤组织中有IgG蛋白及IgG m RNA表达,Ig G、Gab2、PTEN的表达阳性率在正常脑组织与胶质瘤组差异均有显著性(5.0%vs.69.0%,5.0%vs.52.7%,85.0%vs.25.5%,均P<0.05),胶质瘤中IgG与Gab2的表达呈正相关(r=0.312 4,P<0.05),IgG与PTEN表达呈负相关(r=-0.422,P<0.05)。结论胶质瘤中IgG、Gab2高表达,PTEN低表达可能在胶质瘤的发生发展中起一定作用。
基金supported by the National Basic Research Development Program of China(No.2006CB500706)the National Natural Science Foundation of China(No.30700251,30872729,30971031)+1 种基金Shanghai Key Discipline Program(No.S30202)the Program for Out-standing Medical Academic Leader(No.LJ 06003)
文摘The growth factor receptor-bound protein 2 （Grb2） -associated binder （Gab） proteins are intracellular scaffolding/ docking molecules,and participate in multiple signaling pathways,usually acting as the downstream effector of protein-tyrosine kinases （PTKs） -triggered signal transduction pathway.When phosphorylated by PTKs,Gab proteins can recruit several signaling molecules （p85,SHP2,and Crk） ,and subsequently activate multiple transmitting signals that are critical for cell growth,survival,differentiation and apoptosis.Recently,it has been reported that Gab2 polymorphism is associated with the increase in the risk of Alzheimer’s disease （AD） and is involved in the pathogenesis of AD.This review mainly focuses on the structure and function of Gab2 protein and its role in the pathogenesis of AD.
