小儿肾母细胞瘤中SOCS-1和SOCS-3的表达及其临床意义

目的 探讨小儿肾母细胞瘤中细胞因子信号转导抑制因子-1(SOCS-1)和细胞因子信号转导抑制因子-3(SOCS-3)的表达,以及与小儿肾母细胞瘤不同病理类型之间的内在关系.方法 应用RT-PCR法及Western-Blot法测定10例小儿正常肾脏组织、30例小儿肾母细胞瘤及瘤旁组织中sOCS-1和SOCS-3的表达.结果 与正常小儿肾脏组织(mRNA表达:0.721±0.183、0.694±0.148,蛋白表达:0.746±0.168、0.652±0.183)相比,肾母细胞瘤组织中SOCS-1和SOCS-3 mRNA表达(0.156±0.027、0.103±0.021)及蛋白的表达(0.205±0.079、0.185±0.041)均明显降低(P＜0.01).在肿瘤不同病理类型之间SOCS-1和SOCS-3mRNA的表达(预后良好型:0.175±0.086、0.149±0.100,预后不良型:0.128±0.074、0.091±0.067)有差异(P＜0.05).瘤旁组织SOCS-1 和SOCS-3mRNA的表达(0.572±0.154、0.315±0.137)及蛋白的表达(0.628±0.183、0.439±0.137)与正常肾脏组织有差异(P＜0.05).结论 SOCS-1和SOCS-3的表达下降可能与小儿肾母细胞瘤的发生、发展密切相关,与病理分期也有一定联系.

Abstract：

Objective To investigate the expression levels of suppressor of cytokine signaling-1 and suppressor of cytokine signaling-3 in the Wilms' tumor and to study the inherent relationship between the different pathological types. Methods The expression levels of SOCS-1 and SOCS-3 were assessed by RT-PCR and Western-Blot in ten normal kidney tissues, thirty nephroblastoma specimens and adjacent tissues. Results Compared to the normal kidney tissues(mRNA expressions: 0.721±0.183、0.694±0.148,protein expressions:0.746±0.168、0.652±0.183), the expressions of mRNA (0.156±0.027、0.103±0.021)and protein(0.205±0.079、0.185±0.041)of the SOCS-1 and SOCS-3 in nephroblastoma were significantly lower (P＜0.01). There were statistically significant between mRNA expressions and the different pathological types(FH:0.175±0.086,0、149±0.100,UH:0. 128±0.074、0.091±0.067) (P＜0.05).The difference betweenneuroblastoma and the normal tissues in expressions of mRNA (0. 572 ± 0. 154、0. 315 ± 0. 137)and protein(0. 628± 0. 183、0. 439 ± 0. 137)of the SOCS-1 and SOCS-3 were statistically significant (P＜0. 05). Conclusions The low SOCS-1 and SOCS-3 expressions may have a role in the development and progress of nephroblastoma, and the different pathological types.

Expressions and clinical significance of SOCS-1 and SOCS-3 in Nephroblastoma

Objective To investigate the expression levels of suppressor of cytokine signaling-1 and suppressor of cytokine signaling-3 in the Wilms' tumor and to study the inherent relationship between the different pathological types. Methods The expression levels of SOCS-1 and SOCS-3 were assessed by RT-PCR and Western-Blot in ten normal kidney tissues, thirty nephroblastoma specimens and adjacent tissues. Results Compared to the normal kidney tissues(mRNA expressions: 0.721±0.183、0.694±0.148,protein expressions:0.746±0.168、0.652±0.183), the expressions of mRNA (0.156±0.027、0.103±0.021)and protein(0.205±0.079、0.185±0.041)of the SOCS-1 and SOCS-3 in nephroblastoma were significantly lower (P＜0.01). There were statistically significant between mRNA expressions and the different pathological types(FH:0.175±0.086,0、149±0.100,UH:0. 128±0.074、0.091±0.067) (P＜0.05).The difference betweenneuroblastoma and the normal tissues in expressions of mRNA (0. 572 ± 0. 154、0. 315 ± 0. 137)and protein(0. 628± 0. 183、0. 439 ± 0. 137)of the SOCS-1 and SOCS-3 were statistically significant (P＜0. 05). Conclusions The low SOCS-1 and SOCS-3 expressions may have a role in the development and progress of nephroblastoma, and the different pathological types.