大理大学学报 ›› 2023, Vol. 8 ›› Issue (10): 27-33.

• 基础医学 • 上一篇    下一篇

纳米金棒应用于肝吸虫血清循环抗原检测的研究

陈丽萍1,廉晓丽2,蔡子涵1,李 倩3,欧阳天昭4,杨毅梅1*   

  1. 1.大理大学基础医学院,云南大理 6710002.山西医科大学晋祠学院,太原 030000

    3.大理大学临床医学院,云南大理 6710004.大理大学第一附属医院,云南大理 671000

  • 收稿日期:2022-12-06 修回日期:2022-12-23 出版日期:2023-10-15 发布日期:2023-10-26
  • 通讯作者: 杨毅梅,教授,E-mail: yimeiy@dali.edu.cn。
  • 作者简介:陈丽萍,硕士研究生,主要从事免疫学研究。
  • 基金资助:

    国家自然科学基金项目(81460316);云南省地方本科高校基础研究联合专项资金项目(2018FH001-092

Research on the Application of Gold Nanorods in the Detection of Circulating Antigens in Clonorchis sinensis Serum

Chen Liping1Lian Xiaoli2Cai Zihan1Li Qian3Ouyang Tianzhao4Yang Yimei1*   

  1. 1. Pre-clinical CollegeDali UniversityDaliYunnan 671000China2. Jinci CollegeShanxi Medical UniversityTaiyuan030000China3. Clinical CollegeDali UniversityDaliYunnan 671000China4. The First Affiliated Hospital of Dali UniversityDaliYunnan 671000China

  • Received:2022-12-06 Revised:2022-12-23 Online:2023-10-15 Published:2023-10-26

摘要:

目的:研究纳米金棒对肝吸虫病早期及低虫荷的检测效应。方法:纳米金棒标记不同浓度巯基化的肝吸虫特异性IgG抗体,用紫外分光光度计扫描纳米金棒吸收峰,观察吸收峰位移大小,优选出最佳标记浓度;用纳米金棒标记最佳浓度抗体,检测不同感染度、不同感染时间及不同稀释度的大鼠血清循环抗原。结果:纳米金棒标记20 μg/mL抗体时,吸收峰位移最大为20.0 nm;肝吸虫特异性IgG抗体纳米金棒可检出50100200条囊蚴感染后3101731 d的血清循环抗原及稀释度为1400的血清循环抗原。结论:肝吸虫特异性IgG抗体纳米金棒对肝吸虫病早期及低虫荷的检测具有明显优势。

关键词:

纳米金棒, 肝吸虫, 循环抗原, 特异性IgG抗体, 检测

Abstract:

ObjectiveTo study the detection effect of gold nanorods on early and low worm burden of Clonorchis sinensis. MethodsGold nanorods were labeled with different concentrations of thiolated Clonorchis sinensis-specific IgG antibodies. The absorption peaks of the gold nanorods were scanned using a UV spectrophotometer to observe the magnitude of the peak shift and determine the optimal labeling concentration. The gold nanorods labeled with the optimal concentration of antibodies were used to detect circulating antigens in rat serum with different infection degreesinfection timesand dilutions.  ResultsThe maximum peak shift was 20.0 nm when the gold nanorods were labeled with 20 μg/mL antibodies. The gold nanorods labeled with Clonorchis sinensis specific IgG antibodies could detect circulating antigens in rat serum at 310 17 and 31 d after infection with 50100 and 200 cercariaeas well as at a dilution of 1400. ConclusionGold nanorods labeled with Clonorchis sinensis specific IgG antibodies have significant advantages in the detection of early and low worm burden of Clonorchis sinensis.

Key words:

gold nanorods, Clonorchis sinensis, circulating antigen, specific IgG antibodies, detection

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