热休克转录因子2通过促进白细胞介素-10的表达对肺癌发生的影响

摘要

Objective To explore the impact of heat shock factor 2 (HSF2) on the development of lung cancer by promoting interleukin (IL)-10 expression.Methods 50 lung cancer tissues and adjacent normal tissues selected from 50 patients,the expression level of mRNA and protein of HSF2 and IL-10 were respectively detected by RT-PCR,Western blot and Immunohistochemistry;To interfere with expression of HSF2 in A549 cells by siRNA,the expression level of IL-10 was detected by Western blot.Results Compared with the adjacent normal tissues,HSF2 of 76％ (38 of 50) cases were up-regulated (P＜0.01),IL-10 of 80％ (40 of 50) eases were up-regulated (P＜0.01),protein level consistent with mRNA level.The up-regulation expression of IL-10 in lung cancer tissues and HSF2 positively correlated (R2 =0.921 6).The expression of IL-10 in A549 cells was weakened through interference with HSF2 by siRNA.Conclusion HSF2 may contribute to the development of lung cancer by facilitating the expression of IL-10.%目的 探讨热休克转录因子2(HSF2)通过促进白细胞介素-10(IL-10)的表达对肺癌发生的影响.方法 选取50例肺癌患者的癌组织及癌旁组织,采用RT-PCR、Western blot和免疫组织化学法,分别检测HSF2、IL-10的mRNA、蛋白的表达;在A549细胞中,以siRNA干扰HSF2的表达,采用Western blot法检测IL-10的表达水平.结果 与对应癌旁组织相比,肺癌组织中76％(38/50)病例的HSF2表达上调(P＜0.01),80％ (40/50)病例的IL-10表达上调(P＜0.01),蛋白水平和mRNA水平一致.肺癌组织中IL-10的表达上调与HSF2的表达上调呈正相关(R2 =0.921 6).siRNA干扰HSF2可减弱A549中IL-10的表达.结论 HSF2可通过促进IL-10的表达影响肺癌的发生.