河南农业科学 ›› 2023, Vol. 52 ›› Issue (12): 136-141.DOI: 10.15933/j.cnki.1004-3268.2023.12.015

• 畜牧·兽医 • 上一篇    下一篇

减毒鼠伤寒沙门菌Ⅲ型分泌系统介导Apoptin对肿瘤细胞糖酵解的影响

郁川1,2,石胜丽2,朱文文1,胡立中1,宋敏杰1,李静雅2,张春杰2   

  1. (1.洛阳职业技术学院河南省动物疫病与公共卫生工程研究中心,河南 洛阳 471900;2.河南科技大学洛阳市活载体生物材料与动物疫病防控重点实验室,河南 洛阳 471023)
  • 收稿日期:2023-08-20 出版日期:2023-12-15 发布日期:2024-01-05
  • 通讯作者: 张春杰(1964-),女,河南南阳人,教授,博士,主要从事动物疫病防控与分子免疫学的教学与研究。E-mail:cjzhang@sina.com
  • 作者简介:郁川(1985-),男,河南安阳人,副教授,博士,主要从事动物疫病及抗肿瘤机制研究。E-mail:yu_chuan1985@163.com
  • 基金资助:
    国家自然科学基金项目(31302059);河南省高等学校重点科研项目(22A230015)

Effect of Apoptin Mediated by Attenuated Salmonella typhimurium Type Ⅲ Secretion System on Glycolysis in Tumor Cells

YU Chuan1,2,SHI Shengli2,ZHU Wenwen1,HU Lizhong1,SONG Minjie1,LI Jingya2,ZHANG Chunjie2   

  1. (1.Animal Diseases and Public Health Engineering Research Center of Henan Province,Luoyang Polytechnic,Luoyang
    471900,China;2.Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control,Henan
    University of Science and Technology,Luoyang 471023,China)
  • Received:2023-08-20 Published:2023-12-15 Online:2024-01-05

摘要: 为进一步探讨重组减毒鼠伤寒沙门菌Ⅲ型分泌系统介导Apoptin对肿瘤细胞糖酵解的影响,将重组减毒鼠伤寒沙门菌ΔcrpΔasdSL1344(pYA3493-SopE-Apoptin)和互补菌株ΔcrpΔasdSL1344(pYA3493-SopE)分别于体外感染黑色素瘤B16F10细胞,于感染后12 h和24 h收集细胞,检测细胞内丙酮酸、乳酸含量以及丙酮酸激酶、己糖激酶的活性。结果显示,重组菌感染组能极显著下调丙酮酸含量(P<0.01);在感染24 h后,重组菌组乳酸含量极显著低于互补菌组和细胞对照组(P<0.01)。丙酮酸激酶和己糖激酶活性检测结果显示,重组菌组丙酮酸激酶活性和己糖激酶活性均显著低于互补菌组和细胞对照组(P<0.05)。以上结果表明,减毒鼠伤寒沙门菌Ⅲ型分泌系统介导Apoptin能抑制肿瘤细胞糖酵解的能力,通过下调丙酮酸和乳酸含量,降低丙酮酸激酶和己糖激酶活性,导致肿瘤细胞发生明显的代谢变化。

关键词: 凋亡素, 糖酵解, 减毒鼠伤寒沙门菌, 凋亡, 肿瘤细胞

Abstract: To further investigate the effect of Apoptin mediated by recombinant attenuated Salmonella typhimurium type Ⅲ secretion system on glycolysis of tumor cells,B16F10 cells were infected with recombinant strain ΔcrpΔasdSL1344(pYA3493‐SopE‐Apoptin)or complementary strain ΔcrpΔasdSL1344(pYA3493‐SopE),and the cells were collected at 12 h and 24 h after infection to detect the levels of pyruvic acid,lactic acid,pyruvate kinase and hexokinase.The results showed that the intracellular pyruvate level of recombinant strain group was significantly reduced(P<0.01).At 24 h after infection,the lactic acid content of recombinant strain group was significantly lower than that of complementary strain group and cell control group(P<0.01).In addition,the pyruvate kinase activity and hexokinase activity of recombinant strain group were significantly lower than that of complementary strain group and cell control group(P<0.05).These results suggest that recombinant strain can inhibit the glycolysis ability of B16F10 cells by down‐regulating the pyruvate and lactic acid content and reducing the activities of pyruvate kinase and hexokinase,leading to significant metabolic changes in tumor cells.

Key words: Apoptin, Glycolysis, Attenuated Salmonella typhimurium, Apoptosis, Tumor cells

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