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首页> 外文期刊>Anticancer Research: International Journal of Cancer Research and Treatment >In Vitro Exposure of NK-92 Cells to Serum from Patients with Non-small Cell Lung Cancer Impairs Their Cytotoxicity
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In Vitro Exposure of NK-92 Cells to Serum from Patients with Non-small Cell Lung Cancer Impairs Their Cytotoxicity

机译:非小细胞肺癌患者血清中NK-92细胞的体外暴露损害其细胞毒性

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摘要

Aim: To investigate the effect of serum from patients with non-small cell lung cancer (NSCLC) on in vitro cytotoxicity of the clonal cell line NK-92. Materials and Methods: Twenty-six patients with NSCLC were included in this study. NK-92 cells were incubated in medium supplemented with 25% of each patient's serum (before and after chemotherapy) for 24 h, then washed mid tested for cytotoxicity against NK-sensitive K562 targets. Results: The cytotoxicity of NK-92 cells exposed to serum from patients with NSCLC before chemotherapy initiation was significantly reduced compared to that upon incubated with serum from healthy individuals (p<0.00). NK-92 cytotoxicity was further reduced upon exposure to patient's serum after the first and third chemotherapy cycles (p<0.001). Conclusion: The results of our in vitro study suggest that serum of patients with NSCLC may exert per se an inhibitory effect on the cytotoxicity of NK-92 cells and this negative regulation may be enhanced with chemotherapy.
机译:目的:研究非小细胞肺癌(NSCLC)患者血清对克隆细胞系NK-92体外细胞毒性的影响。材料与方法:26例NSCLC患者被纳入研究。将NK-92细胞在补充有25%每个患者血清的培养基中(化疗前后)孵育24小时,然后在中期洗涤,测试其对NK敏感K562靶标的细胞毒性。结果:与健康人血清孵育相比,NSCLC患者在化疗开始前暴露于血清的NK-92细胞的细胞毒性显着降低(p <0.00)。在第一个和第三个化疗周期后,暴露于患者的血清中,NK-92细胞毒性进一步降低(p <0.001)。结论:我们的体外研究结果表明,NSCLC患者血清本身可能会对NK-92细胞的细胞毒性产生抑制作用,而这种负调节作用可能会通过化疗得到增强。

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