1
|
Chen Y, Ma S, Zhou M, Yao Y, Gao X, Fan X, Wu G. Advancements in the preparation technology of small molecule artificial antigens and their specific antibodies: a comprehensive review. Analyst 2024. [PMID: 39140248 DOI: 10.1039/d4an00501e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Small molecules find extensive application in medicine, food safety, and environmental studies, particularly in biomedicine. Immunoassay technology, leveraging the specific recognition between antigens and antibodies, offers a superior alternative to traditional physical and chemical analysis methods. This approach allows for the rapid and accurate detection of small molecular compounds, owing to its high sensitivity, specificity, and swift analytical capabilities. However, small molecular compounds often struggle to effectively stimulate an immune response due to their low molecular weight, weak antigenicity, and limited antigenic epitopes. To overcome this, coupling small molecule compounds with macromolecular carriers to form complete antigens is typically required to induce specific antibodies in animals. Consequently, the preparation of small-molecule artificial antigens and the production of efficient specific antibodies are crucial for achieving precise immunoassays. This paper reviews recent advancements in small molecule antibody preparation technology, emphasizing the design and synthesis of haptens, the coupling of haptens with carriers, the purification and identification of artificial antigens, and the preparation of specific antibodies. Additionally, it evaluates the current technological shortcomings and limitations while projecting future trends in artificial antigen synthesis and antibody preparation technology.
Collapse
Affiliation(s)
- Yaya Chen
- Center of Clinical Laboratory Medicine, Zhongda Hospital, Medical School of Southeast University, Nanjing, Jiangsu, China.
- Department of Laboratory Medicine, Medical School of Southeast University, Nanjing, Jiangsu, China.
| | - Shuo Ma
- Center of Clinical Laboratory Medicine, Zhongda Hospital, Medical School of Southeast University, Nanjing, Jiangsu, China.
- Department of Laboratory Medicine, Medical School of Southeast University, Nanjing, Jiangsu, China.
| | - Meiling Zhou
- Center of Clinical Laboratory Medicine, Zhongda Hospital, Medical School of Southeast University, Nanjing, Jiangsu, China.
- Department of Laboratory Medicine, Medical School of Southeast University, Nanjing, Jiangsu, China.
| | - Yuming Yao
- Center of Clinical Laboratory Medicine, Zhongda Hospital, Medical School of Southeast University, Nanjing, Jiangsu, China.
- Department of Laboratory Medicine, Medical School of Southeast University, Nanjing, Jiangsu, China.
| | - Xun Gao
- Center of Clinical Laboratory Medicine, Zhongda Hospital, Medical School of Southeast University, Nanjing, Jiangsu, China.
- Department of Laboratory Medicine, Medical School of Southeast University, Nanjing, Jiangsu, China.
| | - Xiaobo Fan
- Department of Laboratory Medicine, Medical School of Southeast University, Nanjing, Jiangsu, China.
| | - Guoqiu Wu
- Center of Clinical Laboratory Medicine, Zhongda Hospital, Medical School of Southeast University, Nanjing, Jiangsu, China.
- Department of Laboratory Medicine, Medical School of Southeast University, Nanjing, Jiangsu, China.
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Southeast University, Nanjing, 210009, Jiangsu, China
| |
Collapse
|
2
|
Gezehagn Kussia G, Tessema TS. The Potential of Single-Chain Variable Fragment Antibody: Role in Future Therapeutic and Diagnostic Biologics. J Immunol Res 2024; 2024:1804038. [PMID: 39156005 PMCID: PMC11329312 DOI: 10.1155/2024/1804038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/09/2024] [Accepted: 07/20/2024] [Indexed: 08/20/2024] Open
Abstract
The advancement of genetic engineering has revolutionized the field of immunology by allowing the utilization of intrinsic antibody structures. One of the biologics that are being produced by recombinant antibody technology is single-chain fragments variable (scFv). Genes of variable regions, the heavy and light chains that are genetically linked into a single transcript by a short flexible linker peptide, are used to generate this fragment from cellular and synthetic libraries. The specificity and affinity of these molecules are comparable to those of parental antibodies. Fusion with marker proteins and other potent molecules improves their stability, circulation half-life, activity, and efficient purification. Besides, this review comprises construction protocols, therapeutics, and diagnostic applications of scFv, as well as related challenges. Nonetheless, there are still issues with efficacy, stability, safety, intracellular administration, and production costs that need to be addressed.
Collapse
Affiliation(s)
- Getachew Gezehagn Kussia
- Genomics and BioinformaticsBio and Emerging Technology Institute, Addis Ababa 5954, Ethiopia
- Institute of BiotechnologyAddis Ababa University, Addis Ababa 1176, Ethiopia
| | | |
Collapse
|
3
|
Li L, Wu S, Si Y, Li H, Yin X, Peng D. Single-chain fragment variable produced by phage display technology: Construction, selection, mutation, expression, and recent applications in food safety. Compr Rev Food Sci Food Saf 2022; 21:4354-4377. [PMID: 35904244 DOI: 10.1111/1541-4337.13018] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 01/28/2023]
Abstract
Immunoassays are reliable, efficient, and accurate methods for the analysis of small-molecule harmful substances (such as pesticides, veterinary drugs, and biological toxins) that may be present in food. However, traditional polyclonal and monoclonal antibodies are limited by animal hosts and hinder further development of immunoassays. With the gradual application of phage display technology as an efficient in vitro selection technology, the single-chain fragment variable (scFv) now provides an exciting alternative to traditional antibodies. Efficiently constructed scFv source libraries and specifically designed biopanning schemes can now yield scFvs possessing specific recognition capabilities. A rational mutation strategy further enhances the affinity of scFv, and allows it to reach a level that cannot be achieved by immunization. Finally, appropriate prokaryotic expression measures ensure stable and efficient production of scFv. Therefore, when developing excellent scFvs, it is necessary to focus on three key aspects of this process that include screening, mutation, and expression. In this review, we analyze in detail the preparation and affinity improvement process for scFv and provide insights into the research progress and development trend of scFv-based immunoassay methods for monitoring small-molecule harmful substances.
Collapse
Affiliation(s)
- Long Li
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shuangmin Wu
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yu Si
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Huaming Li
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Xiaoyang Yin
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Dapeng Peng
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, China.,Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen, Guangdong, China.,Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, China.,Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, China
| |
Collapse
|