华西口腔医学杂志

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丝/苏氨酸蛋白激酶/哺乳动物雷帕霉素靶蛋白/p70 S6K信号通路在口腔鳞癌中的表达及临床意义

贾洁茹 梁爽 刘济远 赵君 唐休发   

  1. 口腔疾病研究国家重点实验室  华西口腔医院头颈肿瘤外科(四川大学),成都 610041
  • 出版日期:2014-10-01 发布日期:2014-10-01
  • 通讯作者: 唐休发,教授,博士,E-mail:tangxf1963@163.com
  • 作者简介:贾洁茹,住院医师,硕士,E-mail:jiajieru88@163.com
  • 基金资助:

    四川省科技支撑计划基金资助项目(2011SZ0156)

Expression and clinical significance of serine-threonine kinase/mammalian target of rapamycin/p70 S6K signal path-way in oral squamous cell carcinoma

Jia Jieru, Liang Shuang, Liu Jiyuan, Zhao Jun, Tang Xiufa.   

  1. State Key Laboratory of Oral Diseases, Dept. of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Online:2014-10-01 Published:2014-10-01

摘要:

目的   探讨丝/苏氨酸蛋白激酶(Akt)/哺乳动物雷帕霉素靶蛋白(mTOR)/p70 S6K信号通路在口腔鳞癌组织中的表达情况,为口腔鳞癌的早期诊断和治疗提供参考。方法   收集口腔鳞癌标本51例,癌旁黏膜组织10例,正常口腔黏膜10例。采用免疫组织化学SP法检测口腔鳞癌、癌旁黏膜组织及正常口腔黏膜中p-Akt、p-mTOR及p70 S6K的表达情况,分析三者相互之间表达的相关性。结果   p-Akt、p-mTOR及p70 S6K在口腔鳞癌组中的表达显著高于正常口腔黏膜组和癌旁黏膜组的表达。p-Akt、p-mTOR及p70 S6K在口腔鳞癌的表达与患者的年龄、性别及临床分期无相关性,但与口腔鳞癌的分化程度及有无淋巴结转移有相关性。p-Akt、p-mTOR及p70 S6K在口腔鳞癌的表达相互之间具有较强的正相关关系。结论   Akt/mTOR/p70 S6K信号通路分子在口腔鳞癌中表达活跃,提示可能与口腔鳞癌的发生发展具有重要的相关性。

关键词: 丝/苏氨酸蛋白激酶, 哺乳动物雷帕霉素靶蛋白, p70 S6K, 口腔鳞癌, 免疫组织化学

Abstract:

Objective   To investigate the expressions of serine-threonine kinase (Akt)/ mammalian target of rapamycin (mTOR)/p70 S6K in oral squamous cell carcinoma (OSCC) and provide references for early diagnosis and prognosis evalua-tion of OSCC. Methods   A total of 51 cases of OSCC, 10 cases of paracancerous mucosa, and 10 cases of normal oral mucosa were collected. The expressions of Akt/mTOR/p70 S6K in these cases were detected using the SP method of immunohisto-chemistry. The correlation between their expressions in OSCC was also analyzed. Results   The positive expressions of p-Akt, p-mTOR, and p70 S6K in OSCC were significantly higher than those in normal oral mucosa and paracancerous mucosa. The expressions of p-Akt, p-mTOR, and p70 S6K in OSCC were not correlated with age, gender, and clinical stage; by comparison, these expressions were correlated with lymph node metastasis and pathological grade. Strong positive correlations were also observed between the expressions of p-Akt, p-mTOR, and p70 S6K in OSCC. Conclusion   Akt/mTOR/p70 S6K signaling molecules exhibit active expressions in OSCC and may be implicated in the occurrence and development of OSCC.

Key words: serine-threonine kinase, mammalian target of rapamycin, p70 S6K, oral squamous cell carcinoma, immunohistochemistry