大理大学学报 ›› 2023, Vol. 8 ›› Issue (10): 21-26.

• 基础医学 • 上一篇    下一篇

云南松松塔抗HIV活性提取物对人冠状病毒229E抑制活性的研究

李亚飞1, 2,尚方建1, 2,罗春雨1, 2,石哲芳3,刘 奇1, 2*   

  1. (1.大理大学基础医学院,云南大理 671000;2.云南省昆虫生物医药研发重点实验室,云南大理 671000;3.首都医科大学附属北京儿童医院保定医院,河北保定 071000)

  • 收稿日期:2023-03-20 修回日期:2023-04-01 出版日期:2023-10-15 发布日期:2023-10-26
  • 通讯作者: 刘奇,教授,博士,E-mail:Qiliu@aliyum.com。
  • 作者简介:李亚飞,硕士研究生,主要从事病毒感染与免疫研究。
  • 基金资助:

    国家自然科学基金项目(81660337;81703573);云南省教育厅科学研究基金项目(2022Y816)

The Inhibitory Activity of Pinus yunnanensis Pine Extract with Anti-HIV Activity against Human Coronavirus 229E

Li Yafei1,2,Shang Fangjian1,2,Luo Chunyu1,2,Shi Zhefang3,Liu Qi1,2*   

  1. (1.Pre-clinical College, Dali University, Dali, Yunnan 671000, China; 2.Yunnan Provincial Key Laboratory of Insect Biomedical Research and Development, Dali, Yunnan 671000, China; 3. Baoding Hospital of Beijing Children's Hospital, Capital Medical University, Baoding, Hebei 071000, China)

  • Received:2023-03-20 Revised:2023-04-01 Online:2023-10-15 Published:2023-10-26

摘要:

目的:评价云南松松塔抗HIV活性提取物(以下简称“松塔提取物”)对人冠状病毒(HCoV)-229E的抑制活性,初步明确其作用靶点。方法:构建HCoV-229E S蛋白介导的细胞-细胞融合模型及假病毒模型,检测松塔提取物对HCoV-229E的抑制活性;利用时间-移除实验明确作用靶点,时间-添加实验确定其作用时间。结果:松塔提取物能够抑制HCoV-229E S蛋白介导的细胞-细胞融合现象发生,半抑制浓度(IC50)为(0.136±0.010) mg/mL;能有效抑制HCoV-229E假病毒感染,IC50为(0.069±0.015) mg/mL;时间-移除实验以及时间-添加实验显示松塔提取物靶向于HCoV-229E S蛋白,作用在感染早期(1 h前);不同浓度松塔提取物对293T及Huh-7细胞无明显毒性作用。结论:松塔提取物能靶向HCoV-229E S蛋白,在感染早期抑制HCoV-229E的感染,是一种安全性高的候选药物。

关键词:

云南松, 松塔提取物, HCoV-229E, 抑制活性

Abstract:

Objective: To evaluate the inhibitory activity of Pinus yunnanensis pine extract(referred to as "pine extract") with anti-HIV activity against human coronavirus HCoV-229E and preliminarily determine its target. Methods: A cell-cell fusion model and  model mediated by HCoV-229E S protein were constructed to detect the inhibitory activity of pine extract against HCoV-229E. Time-of-addition and time-of-removal experiments were performed to determine the target and the timing of action. Results: Pine extract could inhibit the cell-cell fusion mediated by HCoV-229E S protein, with an IC50 of (0.136±0.010) mg/mL. It effectively inhibited HCoV-229E infection, with an IC50 of (0.069±0.015) mg/mL. Time-of-removal and time-of-addition experiments showed that pine extract targeted the HCoV-229E S protein and acted in the early stage of infection(1 h before); different concentrations of pine tower extracts have no significant toxicity to 293T and Huh-7 cells. Conclusion: Pine extract can target the HCoV-229E S protein and inhibit HCoV-229E infection in the early stage, making it a safe candidate drug.

Key words:

Pinus yunnanensis, pine extract, HCoV-229E, inhibitory activity

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