摘要目的 探讨KLF样转录因子8(KLF8)在肾癌组织中的表达及其临床意义.方法 用RT-PCR和免疫组织化学分别检测肾癌细胞株786-0、OS-RC-2、37例肾癌组织和癌旁正常组织中KLF8 mRNA和蛋白表达情况.结果 RT-PCR显示肾癌细胞株786-0、OS-RC-2 KLF8 mRNA 高表达;肾癌组织为0.80±0.28,正常组织为0.41±0.11,2组间比较差异有统计学意义(P＜0.01).免疫组织化学显示肾癌细胞株中KLF8蛋白高表达;肾癌组织表达(++)～(+++)者17例,癌旁正常组织表达(-)～(+)者29例,2组间比较差异有统计学意义(P＜0.01).KLF8 mRNA和蛋白表达与肿瘤大小、细胞分化程度、临床分期呈正相关,与年龄、性别无相关性.结论 肾癌组织KLF8 mRNA和蛋白表达增高,可能与肾癌的发生、进展相关.

abstractsObjective To investigate the expression of Kruppel like factor 8(KLF8)in human renal cell carcinoma(RCC)specimens and clinical significance.Methods RT-PCR and immunohistochemistry were used to detect the KLF8 mRNA and protein expression respectively in RCC cell strain 786-0,OS-RC-2 with 37 RCC specimens and adjacent normal tissues of the same patients.Results The expression of KLF8 mRNA was high in RCC cell strain 786-0,OS-RC-2,was 0.80±0.28 and 0.41±0.11 in the RCC specimens and normal tissues respectively(P＜0.01).The level of KLF8 protein expression of 37 RCC specimens(17 was expressed at++-+++)was significantly higher than that of the normal tissues(29 was expressed at--+)(P＜0.01).KLF protein was high expressed in RCC cell strain 786-0,OS-RC-2.The levels of KLF8 mRNA and protein expression were positively correlated with the tumor size,cell differentiation,clinical stage,but not correlated with the patients sex and age.Conclusions The KLF8 mRNA and protein expressions are elevated in the human RCC.KLF8 may be involved in the development and progression of RCC.