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-  2018 

HIPK2在口腔鳞状细胞癌中的胞质再定位表达及其与预后的关系 Cytoplasmic Relocalization of HIPK2 and Its Relationship to the Prognosis of Oral Squamous Cell Carcinoma

Keywords: HIPK2,OSCC,预后,胞质再定位

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Abstract:

目的:探讨同源结构域相互作用蛋白激酶2(HIPK2)在口腔鳞状细胞癌(OSCC)中的表达及其与预后的关系。方法:采用组织微阵及免疫组化染色方法检测99例OSCC组织中HIPK2的表达,利用real-time PCR及细胞免疫荧光实验检测OSCC细胞系中HIPK2基因和蛋白表达水平。结果:HIPK2在99例OSCC组织的肿瘤中心、肿瘤前沿及淋巴结转移灶中表达显著高于癌旁正常上皮(P<0.05);肿瘤中心伴淋巴结转移比不伴淋巴结转移的表达低(P<0.000 1)。HIPK2具有胞核阳性、胞核及胞质均阳性及仅胞质阳性3种表达模式,癌旁正常上皮主要表现为胞核阳性;肿瘤主要表现为胞核及胞质均阳性或仅胞质阳性。HIPK2的表达模式与患者临床分期及病理分级显著相关(P<0.01),而与性别及年龄无显著相关性(P>0.05)。OSCC的总体生存率与HIPK2的表达模式有关,胞核及胞质均阳性、仅胞质阳性相对较强、仅胞质阳性相对较弱者的总体生存率依次降低(P=0.000 6)。HIPK2在OSCC细胞系中mRNA及蛋白的表达显著高于正常上皮细胞系(HIOEC)(P<0.01)。结论:HIPK2在OSCC中表达升高,且以仅胞质阳性表达为主。HIPK2的表达及胞质再定位与OSCC的预后密切相关

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