基础医学与临床 ›› 2014, Vol. 34 ›› Issue (10): 1315-1320.

• 研究论文 • 上一篇    下一篇

肿瘤相关M2型巨噬细胞通过Toll样受体增强卵巢癌细胞MMP-9的表达

柯星1,2,张淑平2,吴梦2,黄蕾2,孙瑞红2,黄珮珺2,潘世扬2,王芳2   

  1. 1. 国家临床检验重点专科建设单位
    2. 南京医科大学第一附属医院
  • 收稿日期:2014-03-13 修回日期:2014-04-19 出版日期:2014-10-05 发布日期:2014-09-25
  • 通讯作者: 王芳 E-mail:shywf74@sina.com
  • 基金资助:
    国家自然科学基金;国家自然科学基金;国家临床检验重点专科建设项目基金;江苏高校优势学科建设工程基金项目资助课题;江苏省实验诊断学重点实验室基金资助项目

Toll-like receptor activation and stimulation promote the secretion of matrix metalloproteinases 9 of human ovarian cancer via co-cultrued with tumor associated macrophage

  • Received:2014-03-13 Revised:2014-04-19 Online:2014-10-05 Published:2014-09-25
  • Supported by:
    the Chinese National Natural Science Foundation;the Chinese National Natural Science Foundation

摘要: 目的 探讨M2型巨噬细胞在卵巢癌侵袭转移中作用及其中可能涉及的TLRs(TLRs)信号通路机制。方法 用320nmol/L 佛波醇酯(PMA)诱导THP-1细胞,直接免疫荧光技术鉴定M2型巨噬细胞;Transwell小室建立M2细胞与卵巢癌细胞SKOV3体外非接触式共培养模型;24和48h共培养后,实时荧光定量聚合酶链式反应(Real-time PCR)检测SKOV3内TLR1、2、6和基质金属蛋白酶MMP-9水平,蛋白免疫印记(Western blot)检测 MyD88、TRAF6、P-NF-κB和MMP-9表达;TLR1、2和6激动剂分别作用SKOV3 6、12和24h后评价MMP-9的变化。结果 PMA可诱导THP-1成为M2型巨噬细胞;M2型巨噬细胞与SKOV3共培养24和48h后, MMP-9的表达水平显著高于对照组(P<0.05);TLR1、2、和6于共培养24和48h后在SKOV3有较高表达(P<0.05);共培养24和48h后,TLRs信号通路蛋白MyD88、TRAF6和P-NF-κB在SKOV3也同步表达增高(P<0.05);TLR1、2和6激动剂Pam3CSK4、 HKLM和FSL-1分别刺激SKOV3 6、12和24h后MMP-9 mRNA水平有显著高表达(P<0.05)。结论 M2型分化诱导后的巨噬细胞,可能通过刺激和活化TLR1、2、6信号途径,引起卵巢癌细胞SKOV3内基质金属蛋白酶MMP-9水平增加,增强肿瘤的侵袭转移能力。

关键词: 卵巢癌, 基质金属蛋白酶-9(MMP-9), Toll样受体(TLRs), 肿瘤相关巨噬细胞(TAM)

Abstract: Objective To investigate the influence of M2-type macrophage on expression of matrix metalloproteinase 9(MMP-9) in ovarian cancer cell, and to analyze the underlying mechanism about Toll-like receptors signaling pathway. Methods 320nM PMA was added to induce THP-1 cell into M2-type macrophage in vitro. M2-type macrophage and SKOV3 non-contacting co-culture model was established by Transwell method. After the co-cultrue process of 12 and 24 h, TLR1, 2, 6 and MMP-9 mRNA were detected by Real-time PCR. MyD88, TRAF6, and P-NF-κB and MMP-9 expression level were evaluated by Western blot. Testing the expression of MMP-9 after SKOV3 was stimulated with TLR1, 2 and 6 agonist for the time of 6, 12 and 24 h respectively. Results Type M2 macrophages could be induced differentiation by PMA. After the co-culture process of 24 and 48 h, MMP-9 mRNA and protein relative expressions in SKOV3 cells were significantly higher (P<0.05). The content of TLR1, 2 and 6 mRNA was highly expressed in SKOV3 (P<0.05). Co-cultured after 24 and 48 h, TLRs signaling pathway proteins MyD88, TRAF6, and P-NF-κB have synchronous increased expression in SKOV3(P<0.05). TLR1, 2 and 6 agonist respectively stimulated SKOV3 for 6 h, 12 h, 24, MMP-9 mRNA level had a significantly high expression (P<0.05). Conclusion Polarization-type tumor-associated macrophage could promote MMP-9 expression in ovarian cancer cells, and its mechanism is possibly though stimulating and activation of TLRs signaling pathway, which is closely connected with invasion and metastasis of ovarian cancer.

Key words: ovarian cancer, matrix metalloproteinase 9, Toll-like receptors, Tumor associated macrophage

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