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The Expression and Therapeutic Potential of Checkpoint Kinase 2 in Laryngeal Squamous Cell Carcinoma

机译:喉鳞状细胞癌检查点激酶2的表达及治疗潜力

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Introduction: Laryngeal squamous cell carcinoma (LSCC) is the most common histological subtype of laryngeal cancer. The involved molecular mechanisms and suitable therapeutic targets for LSCC still need to be further investigated. Checkpoint kinase 2 (CHK2) participates in several cellular physiology pathways and plays a role in tumor progression. However, the roles of CHK2 in LSCC remain unclear. Methods: mRNA expression data were obtained from The Cancer Genome Atlas (TCGA) database, and bioinformatic analysis was performed. Western blot and immunohistochemical analyses were conducted to detect protein expression. MTS assays were performed to examine cell growth of LSCC-derived cell lines. Results: In the present study, we found that both active form of CHK2 and total CHK2 protein expressions were up-regulated in LSCC tissues. Positive expression of CHK2 was closely associated with advanced clinical features and poor prognosis. Moreover, potential CHK2-involving bioprocesses and signaling pathways were analyzed. In addition, repressed proliferation of LSCC cells was induced by CHK2 inhibitor. Discussion: Taken together, our findings elucidated that CHK2 may act as an oncogenic factor in LSCC, suggesting a potential target for clinical treatment.
机译:简介:喉鳞状细胞癌(LSCC)是喉癌最常见的组织学亚型。所涉及的分子机制和LSCC的合适治疗靶标仍然需要进一步研究。检查点激酶2(CHK2)参与几种细胞生理途径,并在肿瘤进展中发挥作用。然而,CHK2在LSCC中的角色仍然不清楚。方法:从癌症基因组Atlas(TCGA)数据库中获得mRNA表达数据,并进行生物信息分析。进行蛋白质印迹和免疫组织化学分析以检测蛋白质表达。进行MTS测定以检查LSCC衍生的细胞系的细胞生长。结果:在本研究中,我们发现在LSCC组织中占据了CHK2的活性形式和总CHK2蛋白表达。 CHK2的阳性表达与晚期临床特征和预后差密切相关。此外,分析了潜在的CHK2涉及生物处理和信号通路。此外,通过CHK2抑制剂诱导LSCC细胞的压抑增殖。讨论:在一起,我们的研究结果阐明了CHK2可以作为LSCC的致癌因子,表明临床治疗的潜在目标。

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