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Antibodies 2012, 1(3), 294-307; doi:10.3390/antib1030294
Review

Preparation of Knockout Extract by Immunoaffinity Column and Its Application

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Received: 28 August 2012; in revised form: 30 November 2012 / Accepted: 4 December 2012 / Published: 6 December 2012
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Abstract: Importance of herbal medicines have recently increased owing to rising interest in their health benefits. However, medicinal plant extracts are complex mixtures of phytochemicals that act synergistically or additively on specific and/or multiple molecular and cellular targets. Thus, it is difficult to examine the actual pharmacological roles of active compounds in plant extracts. This review describes a new strategy for isolating target compounds from plant extracts using immunoaffinity columns coupled with monoclonal antibodies (mAbs) against natural compounds. Through one-step purification using mAb-coupled immunoaffinity columns, we succeeded in preparing a knockout (KO) extract, which contains all components except the target compound. Furthermore, we investigated the pharmacological effects of the KO extract to reveal the actual effects of a bioactive compound in the crude extract. This approach may help determine the potential function of target compounds in herbal medicines.
Keywords: monoclonal antibody; one-step purification; ginseng; ginsenosides; licorice; glycyrrhizin monoclonal antibody; one-step purification; ginseng; ginsenosides; licorice; glycyrrhizin
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Uto, T.; Tung, N.H.; Morinaga, O.; Shoyama, Y. Preparation of Knockout Extract by Immunoaffinity Column and Its Application. Antibodies 2012, 1, 294-307.

AMA Style

Uto T, Tung NH, Morinaga O, Shoyama Y. Preparation of Knockout Extract by Immunoaffinity Column and Its Application. Antibodies. 2012; 1(3):294-307.

Chicago/Turabian Style

Uto, Takuhiro; Tung, Nguyen H.; Morinaga, Osamu; Shoyama, Yukihiro. 2012. "Preparation of Knockout Extract by Immunoaffinity Column and Its Application." Antibodies 1, no. 3: 294-307.

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