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中华胸部外科电子杂志 ›› 2016, Vol. 03 ›› Issue (04) : 228 -233. doi: 10.3877/cma.j.issn.2095-8773.2016.04.08

所属专题: 文献

论著

CXCR4/CXCL12信号途径在食管鳞癌浸润转移中的作用机制
周玉汀1, 田辉2,()   
  1. 1. 255036 淄博市中心医院胸外科
    2. 250012 济南,山东大学齐鲁医院胸外科
  • 收稿日期:2016-03-25 出版日期:2016-11-28
  • 通信作者: 田辉

Mechanism of CXCR4/CXCL12 signaling pathway in invasion and metastasis of esophageal squamous carcinoma

Yuting Zhou1, Hui Tian2,()   

  1. 1. Department of Thoracic Surgery, Zibo Central Hospital, Zibo 255036, China
    2. Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
  • Received:2016-03-25 Published:2016-11-28
  • Corresponding author: Hui Tian
  • About author:
    Corresponding author: Tian Hui, Email:
引用本文:

周玉汀, 田辉. CXCR4/CXCL12信号途径在食管鳞癌浸润转移中的作用机制[J]. 中华胸部外科电子杂志, 2016, 03(04): 228-233.

Yuting Zhou, Hui Tian. Mechanism of CXCR4/CXCL12 signaling pathway in invasion and metastasis of esophageal squamous carcinoma[J]. Chinese Journal of Thoracic Surgery(Electronic Edition), 2016, 03(04): 228-233.

目的

研究趋化因子受体4(CXCR4)/趋化因子12(CXCL12)信号途径在食管鳞癌浸润转移中的作用机制,为探讨CXCR4成为食管癌治疗新的靶点提供理论依据。

方法

取对数生长期的食管鳞癌EC9706细胞,添加趋化因子CXCL12,通过侵袭转移实验、黏附实验分别检测食管鳞癌EC9706细胞株的细胞侵袭、移动和黏附能力。采用RT-PCR和Western Blot技术检测表皮生长因子受体(EGFR)mRNA及蛋白的表达水平。

结果

添加不同浓度趋化因子CXCL12(终浓度为5、10 μg/ml),食管鳞癌EC9706细胞株的细胞侵袭、移动和黏附能力均较空白对照组高,并且存在剂量依存关系,即CXCL12浓度越高,细胞的侵袭、移动、黏附能力越强,差异均有统计学意义(P<0.01)。添加不同浓度趋化因子CXCL12,食管鳞癌细胞的EGFR mRNA和蛋白表达水平均较对照组高,并且存在剂量依存关系,即CXCL12浓度越高,EGFR mRNA和蛋白表达水平越高,差异均有统计学意义(P<0.01)。

结论

CXCR4/CXCL12信号途径与食管鳞癌细胞的侵袭、转移相关,并且存在剂量依存关系,有可能通过调控EGFR的表达参与食管鳞癌的浸润转移。

Objective

To explore the mechanism of chemokine receptor 4(CXCR4)/chemotactic factor 12(CXCL12) signaling pathway in invasion and metastasis of esophageal squamous carcinoma so as to provide theoretical basis for CXCR4 as a new target in tumor treatment.

Methods

Esophageal squamous carcinoma EC9706 cells in logarithmic phase were treated with CXCL12, and the invasion, migration and adhesion capabilities of EC9706 cells were assessed by the assays of cell adhesion and transwell chamber. RT-PCR and Western Blot were performed to determine the expression of epidermal growth factor receptor(EGFR) mRNA and protein.

Results

The capabilities of invasion, migration and adhesion of EC9706 cells increased with the concentrations of CXCL12(5, 10 μg/ml) in a dose-dependent manner(P<0.01), and were significantly higher than those of blank controls(P<0.01). The expression of EGFR mRNA and protein in EC9706 cells increased with the concentrations of CXCL12 in a dose-dependent manner(P<0.01), and was significantly higher than that of controls(P<0.01).

Conclusions

CXCR4/CXCL12 signaling pathway is related to tumor invasion and metastasis, which exhibits a dose-dependent relationship. CXCR4/CXCL12 signaling pathway may participate in the invasion and metastasis of esophageal squamous cell carcinoma via regulating the expression of EGFR.

图1 细胞黏附实验:添加不同浓度CXCL12后癌细胞与ECM的黏附能力(×200)。A:空白对照;B:添加趋化因子CXCL12 5 μg;C:添加趋化因子CXCL12 10 μg。
图2 Transwell小室检测添加不同浓度CXCL12癌细胞是侵袭、迁移能力(×200)。A:空白对照;B:添加趋化因子CXCL12 5 μg;C:添加趋化因子CXCL12 10 μg。
图3 RNA琼脂糖凝胶电泳图
图4 RT-PCR技术检测EGFR mRNA的表达水平
图5 Western Blot检测EGFR蛋白的表达水平
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