实用医学杂志 ›› 2023, Vol. 39 ›› Issue (17): 2171-2175.doi: 10.3969/j.issn.1006-5725.2023.17.004

• 基础研究 • 上一篇    下一篇

牙龈卟啉单胞菌感染性食管鳞癌细胞外泌体蛋白组学分析

崔兰兰1,张革2,徐邦牢1()   

  1. 1.华南理工大学附属第二医院检验科 (广州 510180 )
    2.中山大学药学院微生物与生化药学实验室 (广州 511400 )
  • 收稿日期:2023-02-22 出版日期:2023-09-10 发布日期:2023-09-27
  • 通讯作者: 徐邦牢 E-mail:banglaoxu@163.com
  • 基金资助:
    国家自然科学基金项目(82172890)

Proteomic analysis of exosomes derived from Porphyromonas gingivalis ⁃infected esophageal squamous cancer cells

Lanlan CUI1,Ge ZHANG2,Banglao. XU1()   

  1. Department of Laboratory Medicine,the Second Affiliated Hospital,School of Medicine,South China University of Technology,Guangzhou 510180,China
  • Received:2023-02-22 Online:2023-09-10 Published:2023-09-27
  • Contact: Banglao. XU E-mail:banglaoxu@163.com

摘要:

目的 研究牙龈卟啉单胞菌(Porphyromonas gingivalis,Pg)对食管鳞癌Eca109细胞分泌的外泌体(exosome,Ex)蛋白表达及相关功能和信号通路的影响。 方法 纳米液相色谱-串联质谱分析Nano-LC-MS/MS鉴定Pg感染和未感染的Eca109细胞外泌体蛋白,通过生物信息学方法找出差异蛋白,并对差异蛋白进行GO富集分析和KEGG通路分析。 结果 Nano-LC/MS分析检测到Pg-Ex和Ex分别有729、952种蛋白质,与Ex相比,Pg-Ex有387个蛋白表达上调、294个蛋白表达下调。这些差异蛋白主要参与调节细胞增殖、分化、黏附、迁移、血管生成、趋化、免疫反应等生物过程;富集在肿瘤中心碳代谢、PI3K-Akt信号通路、HIF-1信号通路、Rap1信号通路、缝隙连接、Ras信号通路、mTOR信号通路、胰岛素信号通路、cGMP-PKG信号通路、ECM受体相互作用、趋化因子信号通路、VEGF信号通路等信号通路。 结论 这些差异蛋白所参与的功能及信号通路提示Pg通过调控肿瘤细胞增殖、迁移、血管生成和免疫反应参与食管癌发生发展。

关键词: 牙龈卟啉单胞菌, 食管癌, 外泌体, 蛋白质组学研究

Abstract:

Objective To study the effect of Porphyromonas gingivalis (Pg) on the expression of exosomes (Ex) proteins secreted by Eca109 cells and their related functions and signal pathways. Methods The exosome proteins of Eca109 infected and uninfected by Pg were identified by Nano?LC?MS/MS. The differential proteins were selected by bioinformatics, and analyzed by GO enrichment and KEGG pathway. Results A total of 729 and 952proteins were identified in Pg?Ex and in Ex. Compared with Ex, 387 proteins were up?regulated and 294 proteins were down?regulated in Pg?Ex. These differential proteins are involved in biological processes such as cell proliferation, differentiation, adhesion, migration, angiogenesis,chemotaxis and immune response.They are enriched in Central Carbon Metabolism in tumor, PI3K?Akt signal pathway, HIF?1 signal pathway, Rap1 signal pathway,gap junction, Ras signal pathway, mTOR signal pathway, insulin signaling pathway, cGMP?PKG signaling pathway, ECM receptor interaction, chemokine signaling pathway, VEGF signaling pathway,etc. Conclusion It may indicate that Pg regulate tumor cell proliferation and migration, angiogenesis, immune response and thus participating in the development of esophageal cancer.

Key words: porphyromonas gingivalis, esophageal cancer, exosome, proteomics

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