食品科学 ›› 2023, Vol. 44 ›› Issue (3): 306-313.doi: 10.7506/spkx1002-6630-20220325-306

• 专题论述 • 上一篇    下一篇

食品危害物重组抗体的亲和力提升策略研究进展

王锋,谢曦,马路凯,王琴,肖更生,沈玉栋,徐振林,王弘   

  1. (1.仲恺农业工程学院轻工食品学院,农业农村部岭南特色食品绿色加工与智能制造重点实验室,广东省岭南特色食品科学与技术重点实验室,广东?广州 510225;2.华南农业大学食品学院,广东省食品质量安全重点实验室,广东?广州 510642)
  • 出版日期:2023-02-15 发布日期:2023-02-28
  • 基金资助:
    广东省基础与应用基础研究基金项目(2021A1515110608);国家自然科学基金青年科学基金项目(32001622); 广东省岭南特色食品科学与技术重点实验室项目(2021B1212040013)

Research Progress in Affinity Enhancement Strategies for Recombinant Antibodies against Food Hazards

WANG Feng, XIE Xi, MA Lukai, WANG Qin, XIAO Gengsheng, SHEN Yudong, XU Zhenlin, WANG Hong   

  1. (1. Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, College of Light Industry and Food Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; 2. Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China)
  • Online:2023-02-15 Published:2023-02-28

摘要: 重组抗体作为新一代基因工程抗体,以其结构简单、易表达和修饰改造等特点被广泛应用于食品危害物的免疫快速检测。然而,重组抗体制备技术的非定向性和非精准性导致抗体的亲和力不高,严重影响并限制了重组抗体的应用,因此,当前研究亟需提升重组抗体亲和力。本文概述食品危害物重组抗体的制备技术,分别从重组抗体突变进化、突变库筛选、常规多价抗体制备、抗体融合蛋白的自组装等方面阐述重组抗体的亲和力提升策略,并探讨该领域目前的技术瓶颈和发展方向。

关键词: 食品危害物;免疫检测;重组抗体;亲和力提升

Abstract: As a new generation of genetically engineered antibodies, recombinant antibodies are widely used in immunodetection of food hazards due to their simple structure as well as easy expression and modification. However, due to the non-directionality and imprecision of recombinant antibody preparation technology, the affinity of recombinant antibodies is low, which affects their practical application. Therefore, it is necessary to study how to improve the affinity of recombinant antibodies. This article summarizes the preparation technologies for recombinant antibodies against food hazards, describes the affinity enhancement strategies for recombinant antibodies such as mutation and evolution of recombinant antibodies, screening of mutation library, preparation of conventional multivalent antibodies, and self-assembly of antibody fusion proteins, and finally discusses the technical bottlenecks and future development directions in this field.

Key words: food hazards; immunoassays; recombinant antibodies; affinity enhancement

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