title: Regulatory action of charred Gossamer urocteae on the functions of mouse oral fibroblasts.
abstract: OBJECTIVE
  To explore the influence of charred Gossamer urocteae (CGU) on the functions of primary cultured mouse oral fibroblasts and reveal its mechanism in wound healing.
  
  
  METHODS
  CGU was extracted with different solvents and ethanol extract (EE), ethyl acetate fraction (EF), n-butanol fraction (BF) and aqueous fraction (AF) were obtained. The effects of different fractions on the proliferation, matrix metalloproteinase-2,9 (MMP-2,9) activities, synthesis of collagen and tissue inhibitor of metalloproteinase 1 (TIMP-1) in the mouse oral fibroblasts were determined by MTT, gelatin zymography, chloramine-T method, and enzyme-linked immunosorbent assay (ELISA) respectively.
  
  
  RESULTS
  EE, EF and BF at high concentrations could significantly inhibit proliferation of fibroblasts (P<0.05 or P<0.01), and at low concentrations EF and BF could promote proliferation of fibroblasts, and BF and AF could significantly inhibit collagen synthesis (P<0.05 or P<0.01). EE, EF and AF at high concentrations could significantly increase the MMP-9 activity, and BF and AF could significantly inhibit synthesis of TIMP-1.
  
  
  CONCLUSIONS
  CGU at high concentrations can inhibit the proliferations of fibroblasts and synthesis of collagen, and in healing of wound, CGU at high concentrations possibly has the functions of anti-fibrosis and anti-scar, and the mechanism to promote degradation of collagen is possibly related to the increase in MMP-9 activity and the inhibition of TIMP-1 synthesis.
authors.affiliation: College of Foods and Bio-engineering, Jiangsu University, Zhenjiang, China.
authors.forename: Jian-ping
authors.initials: JP
authors.lastname: Dai
authors.forename: Jun
authors.initials: J
authors.lastname: Chen
authors.forename: Bang-xing
authors.initials: BX
authors.lastname: Han
authors.forename: Yu-fei
authors.initials: YF
authors.lastname: Bei
authors.forename: Xiao-kun
authors.initials: XK
authors.lastname: Zhou
mesh_terms: D000818:Animals; D001685:Biological Factors / Q000494:pharmacology*; D049109:Cell Proliferation / Q000187:drug effects; D002478:Cells, Cultured; D003094:Collagen / Q000378:metabolism; D005347:Fibroblasts / Q000187:drug effects* / Q000201:enzymology / Q000378:metabolism; D020778:Matrix Metalloproteinase 2 / Q000378:metabolism; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism; D008516:Medicine, Chinese Traditional; D051379:Mice; D008807:Mice, Inbred BALB C; D009055:Mouth / Q000166:cytology* / Q000187:drug effects / Q000201:enzymology / Q000378:metabolism; D013112:Spiders / Q000737:chemistry*; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000378:metabolism
chemical_list: D001685:Biological Factors; D019715:Tissue Inhibitor of Metalloproteinase-1; D003094:Collagen; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9