title: On-line comprehensive two-dimensional HepG2 cell membrane chromatographic analysis system for charactering anti-hepatoma components from rat serum after oral administration of Radix scutellariae: A strategy for rapid screening active compounds in vivo.
abstract: Cell membrane chromatography (CMC) is a bioaffinity chromatography technique for characterizing interactions between drugs and membrane receptors and has been widely used to screen active components from complex samples such as herbal medicines (HMs). However, it has never been applied in vivo due to its relatively high limit of detection (LOD) and the matrix interferences. In this study, a novel on-line comprehensive two-dimensional HepG2/CMC/enrich columns/high performance liquid chromatography/time-of-flight mass spectrometry system was developed to rapidly screen potential anti-hepatoma components from drug-containing serum of rats after oral administration of Radix scutellariae. A matrix interference deduction method with a home-written program in MATLAB was developed, which could successfully eliminate the interference of endogenous substances in serum. Baicalein, wogonin, chrysin, oroxylin A, neobaicalein and rivularin from Radix scutellariae extraction were significantly retained in the HepG2/CMC column. Three potential active components, wogonin, oroxylin A and neobaicalein were firstly screened from the drug-containing serum as well. The cell counting kit-8 assay demonstrated that wogonin, oroxylin A and chrysin showed high inhibitory activities in a dose-dependent manner on HepG2 cells at the concentration of 12.5-200 μM (p<0.05) and the IC50 values were 69.83, 16.66 and 51.6 μM, respectively. Wogonin and oroxylin A, which were screened both from Radix scutellariae extraction and the drug-containing serum, could be selected as lead compounds to obtain good anti-hepatoma effects. The proposed comprehensive 2D CMC system and matrix interference elimination strategy have significant advantages for in vivo screening of active components from complex biological samples and could be applied to other biochromatography models.
authors.affiliation: School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China.
authors.forename: Dan
authors.initials: D
authors.lastname: Jia
authors.affiliation: School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China.
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Chen
authors.affiliation: School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Cao
authors.affiliation: School of Biomedical Science, Institute of Molecular Medicine, Huaqiao University, Quanzhou 362021, PR China.
authors.forename: Xunxun
authors.initials: X
authors.lastname: Wu
authors.affiliation: School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Ding
authors.affiliation: Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Shanghai 200438, PR China.
authors.forename: Hai
authors.initials: H
authors.lastname: Zhang
authors.affiliation: School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China.
authors.forename: Chuan
authors.initials: C
authors.lastname: Zhang
authors.affiliation: School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China. Electronic address: yfchai@smmu.edu.cn.
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Chai
authors.affiliation: School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China. Electronic address: zzyzyfzhu@163.com.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Zhu
mesh_terms: D000284:Administration, Oral; D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000008:administration & dosage* / Q000097:blood*; D006528:Carcinoma, Hepatocellular / Q000188:drug therapy; D049109:Cell Proliferation / Q000187:drug effects / Q000502:physiology; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004305:Dose-Response Relationship, Drug; D004353:Drug Evaluation, Preclinical / Q000379:methods; D004365:Drugs, Chinese Herbal / Q000008:administration & dosage* / Q000032:analysis*; D056945:Hep G2 Cells; D006801:Humans; D008113:Liver Neoplasms / Q000188:drug therapy; D008297:Male; D051381:Rats; D017207:Rats, Sprague-Dawley; D031364:Scutellaria baicalensis; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D004365:Drugs, Chinese Herbal
keywords: Anti-hepatoma components; Comprehensive two-dimensional HepG2/cell membrane chromatography system; Drug-containing serum; Herbal medicine; Matrix interference elimination strategy