2017年7月
Development of an immunoassay for fluvoxamine detection using a recombinant single-chain variable fragment antibody
FORENSIC TOXICOLOGY
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- 巻
- 35
- 号
- 2
- 開始ページ
- 301
- 終了ページ
- 308
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s11419-017-0358-9
- 出版者・発行元
- SPRINGER
In forensic toxicology, immunoassays for drug screening are widely used because of the simple test procedures and instantaneous outcome of results. However, commercial immunoassay products are available for only a limited number of drugs. Preparation of antidrug antibodies is a crucial, but time-consuming in creating an immunoassay system. In this study, we focused on the application of a single-chain variable fragment (scFv) antibody for drug screening and developed a fluvoxamine (FLV) detection system for indirect competitive enzyme-linked immunosorbent assay (icELISA) using the scFv against FLV. To clarify the influence of domain order on the scFv binding activities, we prepared two kinds of scFv with different domain orders (HL, V-H-linker-V-L, and LH, V-L-linker-V-H) and examined their kinetic parameters against FLV. The scFvs showed sufficient FLV binding activities (K (D) = 3.8 and 7.6 nM), and the HL scFv was slightly more favorable for FLV binding than the LH scFv. The developed icELISA using the HL scFv could detect FLV in the range of 10-200 ng/mL, and the scFv has no cross-reactivity below 100 mu M except for chlorpromazine and imipramine. We also quantified the plasma FLV concentrations in forensic autopsy cases, and the results showed that this method could be applied effectively for FLV quantification without the need for extraction steps. Although recombinant antibodies against small molecule drugs for immunoassays have not yet been commonly used, we can predict that they could be a powerful tool to screen drugs in the near future, because of their advantages.
- リンク情報
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- DOI
- https://doi.org/10.1007/s11419-017-0358-9
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000403676800009&DestApp=WOS_CPL
- 共同研究・競争的資金等の研究課題
- 抗体ファージライブラリーにて検索・作製した組換え抗体による新規薬物検出法の開発
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85013480684&origin=inward
- ID情報
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- DOI : 10.1007/s11419-017-0358-9
- ISSN : 1860-8965
- eISSN : 1860-8973
- SCOPUS ID : 85013480684
- Web of Science ID : WOS:000403676800009