title: The inhibitory effects of aqueous extract of Magnolia officinalis on human mesangial cell proliferation by regulation of platelet-derived growth factor-BB and transforming growth factor-beta1 expression.
abstract: Mesangial cell (MC) proliferation, mediated by platelet-derived growth factor (PDGF)-BB, transforming growth factor (TGF)-beta1, and cyclin-dependent kinases (CDK), is the common feature of glomerulosclerosis. Magnolia officinalis, stem bark of Machilus thunbergii S., has multiple pharmacological effects. In this study, we investigated the influence of aqueous extract of Magnolia officinalis on MC proliferation, DNA synthesis, and expression of PDGF-BB, TGF-beta1, CDK1, CDK2, and CDK4 in fetal bovine serum (FBS)-activated human MC. Magnolia officinalis inhibited the MC proliferation, DNA synthesis, and the expression of PDGF-BB, CDK1, and CDK2 gene and CDK1, CDK2, and TGF-beta1 protein. These results suggest that the inhibitory effect of Magnolia officinalis on MC proliferation may be mediated by regulation of PDGF-BB and TGF-beta1expressions and by modulation of CDK1 and CDK2 expression.
authors.affiliation: Department of Internal Medicine, College of Oriental Medicine, Kyung Hee University, Seoul, Korea.
authors.forename: Byung-Cheol
authors.initials: BC
authors.lastname: Lee
authors.forename: Ho-Kyung
authors.initials: HK
authors.lastname: Doo
authors.forename: Hee-Jae
authors.initials: HJ
authors.lastname: Lee
authors.forename: Sheng-Yu
authors.initials: SY
authors.lastname: Jin
authors.forename: Joo-Ho
authors.initials: JH
authors.lastname: Jung
authors.forename: Seung-Jae
authors.initials: SJ
authors.lastname: Hong
authors.forename: Sang-Ho
authors.initials: SH
authors.lastname: Lee
authors.forename: Sung-Do
authors.initials: SD
authors.lastname: Kim
authors.forename: Jae-Kyung
authors.initials: JK
authors.lastname: Park
authors.forename: Kang-Hyun
authors.initials: KH
authors.lastname: Leem
authors.forename: Se-Young
authors.initials: SY
authors.lastname: Ahn
mesh_terms: D000077214:Becaplermin; D015153:Blotting, Western; D016203:CDC2 Protein Kinase / Q000096:biosynthesis / Q000235:genetics; D042846:CDC2-CDC28 Kinases / Q000096:biosynthesis / Q000235:genetics; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D051357:Cyclin-Dependent Kinase 2; D051358:Cyclin-Dependent Kinase 4; D018844:Cyclin-Dependent Kinases / Q000096:biosynthesis / Q000235:genetics; D005920:Glomerular Mesangium / Q000166:cytology / Q000187:drug effects*; D006801:Humans; D031566:Magnolia / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology; D010982:Platelet-Derived Growth Factor / Q000096:biosynthesis* / Q000235:genetics; D011518:Proto-Oncogene Proteins / Q000096:biosynthesis / Q000235:genetics; D020574:Proto-Oncogene Proteins c-sis; D012333:RNA, Messenger / Q000096:biosynthesis; D016212:Transforming Growth Factor beta / Q000096:biosynthesis* / Q000235:genetics; D014867:Water
chemical_list: D010936:Plant Extracts; D010982:Platelet-Derived Growth Factor; D011518:Proto-Oncogene Proteins; D020574:Proto-Oncogene Proteins c-sis; D012333:RNA, Messenger; D016212:Transforming Growth Factor beta; D014867:Water; D000077214:Becaplermin; D016203:CDC2 Protein Kinase; D042846:CDC2-CDC28 Kinases; C495894:CDK2 protein, human; C495900:CDK4 protein, human; D051357:Cyclin-Dependent Kinase 2; D051358:Cyclin-Dependent Kinase 4; D018844:Cyclin-Dependent Kinases