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PAK1 as a Potential Therapeutic Target in Male Smokers with EGFR-Mutant Non-Small Cell Lung Cancer
Molecules ( IF 4.6 ) Pub Date : 2020-11-27 , DOI: 10.3390/molecules25235588
Jae Heun Chung , Taehwa Kim , Yong Jung Kang , Seong Hoon Yoon , Yun Seong Kim , Sung Kwang Lee , Joo Hyung Son , Bongsoo Son , Do Hyung Kim

P21-activated kinases (PAKs) are serine/threonine protein kinases that contribute to several cellular processes. Here, we aimed to determine the prognostic value of PAK1 and its correlation with the clinicopathological characteristics and five-year survival rates in patients with non-small cell lung cancer (NSCLC). We evaluated PAK1 mRNA and protein expression in NSCLC cells and resected tumor specimens, as well as in healthy human bronchial epithelial cells and adjacent healthy lung tissues, respectively, for effective comparison. Immunohistochemical tissue microarray analysis of 201 NSCLC specimens showed the correlation of PAK1 expression with clinicopathological characteristics. The mRNA and protein expression of PAK1 were 2.9- and 4.3-fold higher in six of seven NSCLC cell types and human tumors (both, p < 0.001) than in healthy human bronchial epithelial BEAS-2B cells and adjacent healthy lung tissues, respectively. Decreased survival was significantly associated with PAK1 overexpression in the entire cohort (χ2 = 8.48, p = 0.0036), men (χ2 = 17.1, p < 0.0001), and current and former smokers (χ2 = 19.2, p < 0.0001). Notably, epidermal growth factor receptor (EGFR) mutation-positive lung cancer patients with high PAK1 expression showed higher mortality rates than those with low PAK1 expression (91.3% vs. 62.5%, p = 0.02). Therefore, PAK1 overexpression could serve as a molecular target for the treatment of EGFR mutation-positive lung cancer, especially among male patients and current/former smokers.

中文翻译:

PAK1 作为 EGFR 突变型非小细胞肺癌男性吸烟者的潜在治疗靶点

P21 活化激酶 (PAK) 是丝氨酸/苏氨酸蛋白激酶,有助于多种细胞过程。在这里,我们旨在确定 PAK1 的预后价值及其与非小细胞肺癌 (NSCLC) 患者的临床病理特征和五年生存率的相关性。我们分别评估了 NSCLC 细胞和切除的肿瘤标本以及健康人支气管上皮细胞和邻近健康肺组织中 PAK1 mRNA 和蛋白质的表达,以进行有效比较。201 例 NSCLC 标本的免疫组织化学组织微阵列分析显示 PAK1 表达与临床病理特征的相关性。PAK1 的 mRNA 和蛋白质表达在七种 NSCLC 细胞类型中的六种和人类肿瘤中分别高出 2.9 和 4.3 倍(两者,p < 0 001) 分别高于健康人支气管上皮 BEAS-2B 细胞和邻近的健康肺组织。在整个队列 (χ2 = 8.48, p = 0.0036)、男性 (χ2 = 17.1, p < 0.0001) 以及目前和以前吸烟者 (χ2 = 19.2, p < 0.0001) 中,存活率降低与 PAK1 过度表达显着相关。值得注意的是,具有高 PAK1 表达的表皮生长因子受体 (EGFR) 突变阳性肺癌患者的死亡率高于低 PAK1 表达的患者(91.3% vs. 62.5%,p = 0.02)。因此,PAK1 过表达可以作为治疗 EGFR 突变阳性肺癌的分子靶点,尤其是在男性患者和现在/以前吸烟者中。在整个队列 (χ2 = 8.48, p = 0.0036)、男性 (χ2 = 17.1, p < 0.0001) 以及目前和以前吸烟者 (χ2 = 19.2, p < 0.0001) 中,存活率降低与 PAK1 过度表达显着相关。值得注意的是,具有高 PAK1 表达的表皮生长因子受体 (EGFR) 突变阳性肺癌患者的死亡率高于低 PAK1 表达的患者(91.3% vs. 62.5%,p = 0.02)。因此,PAK1 过表达可以作为治疗 EGFR 突变阳性肺癌的分子靶点,尤其是在男性患者和现在/以前吸烟者中。在整个队列 (χ2 = 8.48, p = 0.0036)、男性 (χ2 = 17.1, p < 0.0001) 以及目前和以前吸烟者 (χ2 = 19.2, p < 0.0001) 中,存活率降低与 PAK1 过度表达显着相关。值得注意的是,具有高 PAK1 表达的表皮生长因子受体 (EGFR) 突变阳性肺癌患者的死亡率高于低 PAK1 表达的患者(91.3% vs. 62.5%,p = 0.02)。因此,PAK1 过表达可以作为治疗 EGFR 突变阳性肺癌的分子靶点,尤其是在男性患者和现在/以前吸烟者中。PAK1 高表达的表皮生长因子受体 (EGFR) 突变阳性肺癌患者的死亡率高于 PAK1 低表达的患者(91.3% vs. 62.5%,p = 0.02)。因此,PAK1 过表达可以作为治疗 EGFR 突变阳性肺癌的分子靶点,尤其是在男性患者和现在/以前吸烟者中。PAK1 高表达的表皮生长因子受体 (EGFR) 突变阳性肺癌患者的死亡率高于 PAK1 低表达的患者(91.3% vs. 62.5%,p = 0.02)。因此,PAK1 过表达可以作为治疗 EGFR 突变阳性肺癌的分子靶点,尤其是在男性患者和现在/以前吸烟者中。
更新日期:2020-11-27
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