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Development of monoclonal antibody against isoquinoline alkaloid coptisine and its application for the screening of medicinal plants.
| Content Provider | Europe PMC |
|---|---|
| Author | Kim, Jun-Sik Tanaka, Hiroyuki Yuan, Chun-Su Shoyama, Yukihiro |
| Abstract | In the development of immunoassay technique, the design of hapten containing a functional group suitable for protein conjugate is the key step for the preparation of antibodies against small molecules. Coptisine (MW 320), a bioactive constituent of Berberis and Coptis species, is small as an immunogen. In addition, coptisine has no reactive group in molecule for conjugating with a protein. To overcome this problem, 9-O-carboxymethyl-berberrubine was designed and conjugated with carrier protein. In order to confirm its immunogenicity, the ratio of hapten in the conjugate was determined by matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS). After immunization, hybridomas secreting antibodies against coptisine were produced by fusing splenocytes with mouse myeloma cell line, P3-X63-Ag8-653. Among hybridomas, the clone 2A1 secreting anti-coptisine monoclonal antibody (MAb) 2A1-9E-1 was obtained through the limited dilution method. The MAb-based enzyme-linked immunosorbent assay (ELISA) against coptisine was developed and characterized. The linear range of the assay in this ELISA method was extended from 1.56 to 25 μg ml−1 possessing the detection limit of 1.56 μg ml−1. The established ELISA using MAb 2A1-9E-1 was applied for the survey of isoquinoline alkaloids in various medicinal plants. |
| Related Links | https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC3449483&blobtype=pdf |
| ISSN | 09209069 |
| Volume Number | 44 |
| DOI | 10.1007/s10616-004-1179-3 |
| PubMed Central reference number | PMC3449483 |
| Issue Number | 3 |
| PubMed reference number | 19003234 |
| Journal | Cytotechnology |
| e-ISSN | 15730778 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2004-03-01 |
| Publisher Place | Dordrecht |
| Access Restriction | Open |
| Rights License | © Kluwer Academic Publishers 2004 |
| Subject Keyword | Coptisine ELISA Isoquinoline alkaloid Monoclonal antibody Small hapten |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Clinical Biochemistry Bioengineering Biomedical Engineering Biotechnology |