title: The proliferation and migration effects of huangqi on RSC96 Schwann cells.
abstract: This study evaluated the proliferation effects of huangqi on neuron regeneration. We investigated the molecular mechanisms, which include: (1) cyclin D1, A, E-cell cycle factors and MAPK signaling proliferation (2) FGF-2-UPA-MMPs migration signaling. After treatment with various Huanqi concentrations (1.25, 12.5, 125, 250 and 500 microg/ml,), we observed that Huanqi can increase Rsc 96 cell proliferation at 12.5 microg/ml (p < 0.01) concentration determined by the MTT and wound healing tests. Examination by RT-PCR and Western blotting assay showed that Huangqi is able to stimulate the mRNA and protein expressions of cyclin D1, A, E, cell cycle controlling proteins and excite ERK and P38 MAPK signaling pathways to promote cell proliferation. Huangqi stimulates the FGF-2-UPA-MMP 9 migration pathway and enhances RSC 96 Schwann cells migration. Using MAPK chemical inhibitors, U0126, SB203580 and SP600125, the proliferative effects of Huangqi on RSC 96 cells were ERK and P38 signaling-dependent. Based on these results, applying an appropriate dose of Huangqi with biomedical materials would be a potential approach to enhancing neuron regeneration.
authors.affiliation: Graduate Institute of Chinese Medical Science, Taipei Physical Education College, Taipei, Taiwan.
authors.forename: Wen-Kuei
authors.initials: WK
authors.lastname: Fang
authors.forename: Fu-Yang
authors.initials: FY
authors.lastname: Ko
authors.forename: Hwai Lee
authors.initials: HL
authors.lastname: Wang
authors.forename: Chia-Hua
authors.initials: CH
authors.lastname: Kuo
authors.forename: Li-Mien
authors.initials: LM
authors.lastname: Chen
authors.forename: Fuu-Jen
authors.initials: FJ
authors.lastname: Tsai
authors.forename: Chang-Hai
authors.initials: CH
authors.lastname: Tsai
authors.forename: Yueh-Sheng
authors.initials: YS
authors.lastname: Chen
authors.forename: Wei-Wen
authors.initials: WW
authors.lastname: Kuo
authors.forename: Chih-Yang
authors.initials: CY
authors.lastname: Huang
mesh_terms: D000818:Animals; D000873:Anthracenes / Q000494:pharmacology; D027883:Astragalus Plant; D027885:Astragalus propinquus; D015153:Blotting, Western; D002070:Butadienes / Q000494:pharmacology; D002460:Cell Line; D002465:Cell Movement / Q000187:drug effects*; D049109:Cell Proliferation / Q000187:drug effects*; D002470:Cell Survival / Q000187:drug effects; D019925:Cyclin A / Q000235:genetics / Q000378:metabolism; D019938:Cyclin D1 / Q000235:genetics / Q000378:metabolism; D019927:Cyclin E / Q000235:genetics / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D004791:Enzyme Inhibitors / Q000494:pharmacology; D016222:Fibroblast Growth Factor 2 / Q000235:genetics / Q000378:metabolism; D007093:Imidazoles / Q000494:pharmacology; D020780:Matrix Metalloproteinase 9 / Q000235:genetics / Q000378:metabolism; D048052:Mitogen-Activated Protein Kinase 3 / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism; D008954:Models, Biological; D009570:Nitriles / Q000494:pharmacology; D011725:Pyridines / Q000494:pharmacology; D051381:Rats; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012583:Schwann Cells / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D014568:Urokinase-Type Plasminogen Activator / Q000235:genetics / Q000378:metabolism; D048051:p38 Mitogen-Activated Protein Kinases / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism
chemical_list: D000873:Anthracenes; D002070:Butadienes; D019925:Cyclin A; D019927:Cyclin E; D004365:Drugs, Chinese Herbal; D004791:Enzyme Inhibitors; D007093:Imidazoles; D009570:Nitriles; D011725:Pyridines; C113580:U 0126; D016222:Fibroblast Growth Factor 2; D019938:Cyclin D1; C432165:pyrazolanthrone; C027492:Huang Qi; D048052:Mitogen-Activated Protein Kinase 3; D048051:p38 Mitogen-Activated Protein Kinases; D014568:Urokinase-Type Plasminogen Activator; D020780:Matrix Metalloproteinase 9; C093642:SB 203580