Development of an enzyme-linked immunosorbent assay using specific monoclonal antibodies against theacrine and its application  

作　　者：Zhuang Li Jun He Yue Zhang Qing-Guo Wang Yah Zhao Hui-Hua Qu Xue-Qian Wang Hui Kong Wei-Ku Zhang Jie-Kun Xu 

机构地区：[1]School of Basic Medical Sciences, Beijing University of Chinese Medicine, Beijing 100029, China [2]Department of Pharmacology, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China [3]Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China [4]Classical Prescription Application Foundation Research Innovation Team, Beijing University of Chinese Medicine, 8eijing 100029, China

出　　处：《Chinese Chemical Letters》2016年第12期1771-1775,共5页中国化学快报（英文版）

基　　金：funds including the National Natural Science Foundation of China (Nos.81473590,No.81274115,No.81473119);China-Japan Friendship Hospital Youth Science and Technology Excellence Project (No.2014-QNYC-B-10);Program for New Century Excellent Talents in University of the Chinese Ministry of Education (No.NCET-11-0606);Program for Excellent Talents of Beijing Municipal Party Committee Organization Department of the Communist Party of China (No.2013D009999000001)

摘　　要：Tbeacrine （1,3,7,9-tetramethyluric acid）, a purine alkaloid similar to caffeine in its chemical structure, is isolated from edible Camellia assamica vat. kucha and has various pharmacological activities including hypnotic effects, anti-depressant effects, anti-inflammatory and analgesic effects, and a protective effect against stress-provoked liver damage. A rapid and simple assay is required to quantify theacrine in biological samples for pharmacokinetic studies in small animals. This study aimed to establish an enzyme-linked immunosorbent assay （ELISA） for theacrine quantification in blood. Herein, we successfully obtained monoclonal antibodies （MAbs） against theacrine, MAbs C11B5, and developed an ELISA method for the fast determination of theacrine in mouse blood. The range for calibration of theacrine by ELISA was 0.156-100 μg mL-1. The half maximum inhibitory concentration （IC50） value was 1.55 μg mL-1. The ELISA method lays a good foundation for the further research.Tbeacrine （1,3,7,9-tetramethyluric acid）, a purine alkaloid similar to caffeine in its chemical structure, is isolated from edible Camellia assamica vat. kucha and has various pharmacological activities including hypnotic effects, anti-depressant effects, anti-inflammatory and analgesic effects, and a protective effect against stress-provoked liver damage. A rapid and simple assay is required to quantify theacrine in biological samples for pharmacokinetic studies in small animals. This study aimed to establish an enzyme-linked immunosorbent assay （ELISA） for theacrine quantification in blood. Herein, we successfully obtained monoclonal antibodies （MAbs） against theacrine, MAbs C11B5, and developed an ELISA method for the fast determination of theacrine in mouse blood. The range for calibration of theacrine by ELISA was 0.156-100 μg mL-1. The half maximum inhibitory concentration （IC50） value was 1.55 μg mL-1. The ELISA method lays a good foundation for the further research.

关 键 词：Theacrine Theophylline-7-acetic acid ELISA Monoclonal antibody 

分 类 号：R96[医药卫生—药理学] O629.3[医药卫生—药学]