title: The permeability characteristics and interaction of the main components from Zhizi Bopi decoction in the MDCK cell model.
abstract: 1. Although emerging evidence indicates the therapeutic effects of Zhizi Bopi Decoction, the extent to which essential ingredients are absorbed and the possible synergistic actions are poorly understood. 2. In this study, MDCK cell model was used to determine the bi-directional permeability and interaction between the main components (geniposide, berberine and glycyrrhizic acid) of Zhizi Bopi Decoction. 3. The transport of the active ingredients was concentration-dependent in both directions. Moreover, the Papp (AP-BL) values of berberine and glycyrrhizic acid were significantly reduced when co-incubation with an ATP inhibitor. Additionally, uptake of berberine, glycyrrhizic acid were clearly inhibited by the inhibitors of P-glycoprotein and MRP2, indicating that P-gp and MRP2 may be involved in the transport of berberine and glycyrrhizic acid, respectively. However, it was found that geniposide may be purely passive diffusion. Furthermore, the combined incubation of geniposide with berberine and glycyrrhizic acid had a powerful sorbefacient effect than use of a single drug alone which may be regulated by tight junctions. 4. In summary, our study provides useful information for pharmacological applications of Zhizi Bopi Decoction and offers new insights into this ancient decoction for further researches, especially in drug synergism.
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Zhengyue
authors.initials: Z
authors.lastname: Qian
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Huang
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Chenlin
authors.initials: C
authors.lastname: Shen
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Meng
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Zhaolin
authors.initials: Z
authors.lastname: Chen
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Hu
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Yangyang
authors.initials: Y
authors.lastname: Li
authors.affiliation: a School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University , Hefei 230032 , China.
authors.forename: Jun
authors.initials: J
authors.lastname: Li
mesh_terms: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1 / Q000378:metabolism; D000818:Animals; D001599:Berberine / Q000378:metabolism; D004285:Dogs; D004365:Drugs, Chinese Herbal / Q000378:metabolism* / Q000494:pharmacology; D019695:Glycyrrhizic Acid / Q000378:metabolism; D039823:Iridoids / Q000378:metabolism; D061985:Madin Darby Canine Kidney Cells; D010539:Permeability
chemical_list: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D004365:Drugs, Chinese Herbal; D039823:Iridoids; D001599:Berberine; C007835:geniposide; D019695:Glycyrrhizic Acid
keywords: MDCK; MRP2; P-gp; Zhizi Bopi Decoction; tight junctions