Comparative stability and analytical performance of anti-miroestrol recombinant antibody in different cassettes
Issued Date
2023-05-01
Resource Type
ISSN
01757598
eISSN
14320614
Scopus ID
2-s2.0-85151380675
Pubmed ID
36995382
Journal Title
Applied Microbiology and Biotechnology
Volume
107
Issue
9
Start Page
2887
End Page
2896
Rights Holder(s)
SCOPUS
Bibliographic Citation
Applied Microbiology and Biotechnology Vol.107 No.9 (2023) , 2887-2896
Suggested Citation
Sae-Foo W., Yusakul G., Kitisripanya T., Nuntawong P., Sakamoto S., Putalun W. Comparative stability and analytical performance of anti-miroestrol recombinant antibody in different cassettes. Applied Microbiology and Biotechnology Vol.107 No.9 (2023) , 2887-2896. 2896. doi:10.1007/s00253-023-12492-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/81595
Title
Comparative stability and analytical performance of anti-miroestrol recombinant antibody in different cassettes
Author's Affiliation
Other Contributor(s)
Abstract
Immunoassays are efficient for the phytochemical analysis of various matrices. However, producing an appropriate recombinant antibody for small molecules is challenging, resulting in costly analyses. In this study, we aimed to develop recombinant fragment antigen-binding (Fab) antibodies against miroestrol, a potent phytoestrogen marker of Pueraria candollei. Two expression cassettes of Fab were established for the production of active Fab antibodies using SHuffle® T7 Escherichia coli cells. The orientation of variable fragment heavy chain (VH) and variable fragment light chain (VL) in the expression vector constructs influences the reactivity, stability, and binding specificity of the resultant Fab. Stability testing of antibodies demonstrated that Fab is a more stable form of recombinant antibody than a single-chain variable fragment (ScFv) antibody in all conditions. Based on the obtained Fab, the ELISA specifically detected miroestrol in the range of 39.06–625.00 ng/mL. The intra- and inter-assay precisions were 0.74–2.98% and 6.57–9.76%, respectively. The recovery of authentic miroestrol spiked into samples was 106.70–110.14%, and the limit of detection was 11.07 ng/mL. The results for P. candollei roots and products determined using our developed ELISA with Fab antibody and an ELISA with anti-miroestrol monoclonal antibody (mAb) were consistent (R2 = 0.9758). The developed ELISA can be applied for the quality control of miroestrol derived from P. candollei. Therefore, the appropriate expression platform of Fab resulted in the stable binding specificity of the recombinant antibody and was applicable for immunoassays. Key points • ELISAs with Fab has higher sensitivity than that with ScFv. • Fab is more stable than ScFv. • Fab-based ELISA can be used for miroestrol determination of Pueraria candollei. Graphical Abstract: [Figure not available: see fulltext.]