title: Development of an indirect competitive immunochromatographic strip test for rapid detection and determination of anticancer drug, harringtonine.
abstract: Harringtonine (HT) is a natural compound, which is mainly produced by the genus Cephalotaxus, and has been clinically utilized in China for the treatment of acute leukemia and lymphoma. However, the amounts of HT in the Cephalotaxus species are very small; therefore, plant tissue cultures have been focused upon to enhance HT production. Qualitative/quantitative methods for HT detection are required to screen superior cell lines. We developed a one-step indirect competitive immunochromatographic assay (ICA) using colloidal gold nanoparticles conjugated with highly specific monoclonal antibodies against HT (MAb 1D2) for simple, rapid, and sensitive detection of HT in plant samples. This ICA can be completed in 15min after dipping the strip into analytes with a limit of detection of ∼313ng/mL. In developed ICA, fiber pad which is usually used for conventional ICA, was not used to shorten the time for preparing chromatographic strip, resulting in a decrease in the volume of valuable analytes (20μL). Considering simplicity, rapidity, and sensitivity of the developed ICA, this study could be applied to a fieldwork study for finding new natural resources containing HT.
authors.affiliation: Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan. Electronic address: s.sakamoto@phar.kyushu-u.ac.jp.
authors.forename: Seiichi
authors.initials: S
authors.lastname: Sakamoto
authors.affiliation: Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Gorawit
authors.initials: G
authors.lastname: Yusakul
authors.affiliation: Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Poomraphie
authors.initials: P
authors.lastname: Nuntawong
authors.affiliation: Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
authors.forename: Tharita
authors.initials: T
authors.lastname: Kitisripanya
authors.affiliation: Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
authors.forename: Waraporn
authors.initials: W
authors.lastname: Putalun
authors.affiliation: Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Miyamoto
authors.affiliation: Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Tanaka
authors.affiliation: Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Morimoto
mesh_terms: D000911:Antibodies, Monoclonal / Q000737:chemistry; D000972:Antineoplastic Agents, Phytogenic / Q000032:analysis*; D032483:Cephalotaxus / Q000737:chemistry*; D002846:Chromatography, Affinity / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D017979:Gold Colloid / Q000737:chemistry; D006248:Harringtonines / Q000032:analysis*; D053768:Metal Nanoparticles / Q000737:chemistry; D011934:Reagent Strips / Q000032:analysis
chemical_list: D000911:Antibodies, Monoclonal; D000972:Antineoplastic Agents, Phytogenic; D017979:Gold Colloid; D006248:Harringtonines; D011934:Reagent Strips; C062500:harringtonin
keywords: Cephalotaxus alkaloids; Colloidal gold nanoparticles; Harringtonine; Immunochromatographic strip test; Monoclonal antibody against HT (MAb 1D2)