title: Effect of oxymatrine HSPC liposomes on improving bioavailability, liver target distribution and hepatoprotective activity of oxymatrine.
abstract: Oxymatrine (OMT) and matrine (MT) are two naturally occurring alkaloids, both of them provide anti-hepatitis effects. However OMT effect was heavily limited due to its low bioavailability, short half-life and whole body distribution. Herein, we investigated hydrogenated soybean phosphatidylcholine (HSPC) liposomes made by pH gradient active loading to understand the improved hepatoprotective effect mechanisms. Pharmacokinetics researches demonstrated the half-life time of OMT HSPC liposomes was 17.10h in mice. Compared with OMT solution, AUC(0-8)of OMT and MRT(0-8)of MT had been increased 11.8 fold and 14.3 fold in HSPC liposomes. Moreover, tissue distribution revealed the relative AUCsof total alkaloids in liver of OMT HSPC liposomes was as 4.18 times as that of OMT solution. Our data suggested that pathological topical necrosis and mild vacuolar degeneration of liver progressively returned to normal, and serum level of alanine-aminotransferase (ALT) and aspartate-aminotransferase (AST) were significantly reduced after treating with OMT HSPC liposomes in acute liver injury mice induced by CCl4. Pharmacokinetics, biodistribution and pathological researches manifested that HSPC liposomes served as an ideal and potential oxymatrine liver target carrier to prolong OMT retention time and maintain high therapeutically level in liver.
authors.affiliation: School of Chemistry and Chemical Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 51640, China. Electronic address: liumf@scut.edu.cn.
authors.forename: Meifeng
authors.initials: M
authors.lastname: Liu
authors.affiliation: School of Chemistry and Chemical Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 51640, China.
authors.forename: Sha
authors.initials: S
authors.lastname: Jin
authors.affiliation: School of Chemistry and Chemical Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 51640, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Yan
authors.affiliation: Guangdong Jiabo Pharmaceutical Co., Ltd., Qingyuan 511517, China. Electronic address: dusong75@aliyun.com.
authors.forename: Song
authors.initials: S
authors.lastname: Du
mesh_terms: D000410:Alanine Transaminase / Q000097:blood; D000470:Alkaloids / Q000008:administration & dosage* / Q000097:blood / Q000493:pharmacokinetics; D000818:Animals; D001219:Aspartate Aminotransferases / Q000097:blood; D001682:Biological Availability; D002251:Carbon Tetrachloride; D056486:Chemical and Drug Induced Liver Injury / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology; D065546:Drug Liberation; D007668:Kidney / Q000378:metabolism; D008081:Liposomes; D008099:Liver / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D008297:Male; D051379:Mice; D009206:Myocardium / Q000378:metabolism; D010713:Phosphatidylcholines / Q000737:chemistry; D020011:Protective Agents / Q000008:administration & dosage* / Q000493:pharmacokinetics; D011807:Quinolizines / Q000008:administration & dosage* / Q000097:blood / Q000493:pharmacokinetics; D013154:Spleen / Q000378:metabolism; D014018:Tissue Distribution; D000093842:Matrines
chemical_list: D000470:Alkaloids; D008081:Liposomes; D010713:Phosphatidylcholines; D020011:Protective Agents; D011807:Quinolizines; C037573:oxymatrine; D002251:Carbon Tetrachloride; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D000093842:Matrines
keywords: Hepatoprotective effect; OMT HSPC liposomes; Pharmacokinetics; Targeting distribution