• 中国科学论文统计源期刊
  • 中国科技核心期刊
  • 美国化学文摘(CA)来源期刊
  • 日本科学技术振兴机构数据库(JST)

临床输血与检验 ›› 2019, Vol. 21 ›› Issue (1): 20-23.DOI: 10.3969/j.issn.1671-2587.2019.01.007

• 基础实验 • 上一篇    下一篇

血小板对人肺癌细胞株A549凋亡的影响及机制初探*

李娟, 罗以勤, 方慢, 王章飞   

  1. 230001 合肥,中国科技大学附属第一医院检验科、输血科
  • 收稿日期:2018-08-11 出版日期:2019-02-20 发布日期:2019-01-28
  • 通讯作者: 罗以勤,男,教授,主任医师,硕士生导师,(E-mail)luoyiqin2003@163.com。
  • 作者简介:李娟(1987-),女,安徽合肥人,检验技师,硕士,主要从事临床输血与检验相关研究工作,(E-mail)942085342@qq.com。
  • 基金资助:
    本课题受安徽省自然科学基金(No.1608085MH229)资助

The Influence of Platelets on Apoptosis of Lung Cancer Cells

LI Juan, LUO Yi-qing, FANG Man, et al   

  1. Departments of Laboratory Diagnostics and Blood Transfusion,the First Hospital of USTC,230001
  • Received:2018-08-11 Online:2019-02-20 Published:2019-01-28

摘要: 目的 探讨血小板(PLT)对肺癌细胞株A549的影响及其可能的机制。方法 通过流式细胞术检测PLT对A549细胞的凋亡作用;Western blot检测PLT和A549细胞共培养后A549细胞中ERK1/2、JNK、p-ERK、p-JNK、MMP-2、MMP-9、Bcl-2、Bax蛋白的表达情况。结果 应用流式细胞术的检测结果发现,血小板抑制A549细胞的凋亡并能阻止化疗药物吉西他滨诱导的A549细胞凋亡。Western blot结果显示PLT和A549细胞共培养48 h后,A549细胞中ERK1/2、JNK、p-ERK、p-JNK、MMP-2、MMP-9、Bcl-2蛋白表达明显增加,Bax蛋白表达明显降低。结论 血小板可增加A549细胞中ERK1 / 2、JNK、p-ERK、p-JNK磷酸化,增加MMP-2、MMP-9和Bcl-2蛋白的表达; 降低Bax蛋白表达,并抑制肺癌细胞株A549的凋亡。血小板可抑制A549细胞的凋亡,且与血小板的浓度呈正相关。

关键词: 血小板, 肺癌细胞, 凋亡, 吉西他滨

Abstract: Objective To study the impact of platelet on tumor cell apoptosis which is associated with resistance of lung cancer cells to chemotherapy. Methods Flow cytometry was performed to detect the apoptosis of A549 induced by PLT . The expression of ERK1/2,JNK,p-ERK,p-JNK,MMP 2,MMP-9,the Bcl-2,Bax was examined by Western blotting after co-culture of PLT with A549 cells. Results The expression of ERK1/2,JNK,p-ERK,p-JNK,MMP-2,MMP-9,and Bcl-2 was significantly upregulated while Bax was decreased after 48h cultrue. Conclusions Platelets facilitated migration of A549 cells in vitro,which was positively correlated with the platelet concentrations. Platelets increased the phosphorylation of ERK1/2,JNK,p-ERK,p-JNK; MMP-2 and the expression of MMP-2,MMP-9,and Bcl-2,but decreased the expression of Bax protein and inhibited the apoptosis of lung adenocarcinoma cells.

Key words: Platelets, Lung adenocarcinoma cancer cells, Apoptosis, Gemcitabine

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