WANG Yi-jing, YUAN Xiao-peng, WU Dan-bin, et al. Mechanism of Buyang Huanwu Tang in Intervening Hypoxia Preconditioning Fibroblast and Promoting Mesenchymal Stem Cell Migration[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(23): 112-118.
WANG Yi-jing, YUAN Xiao-peng, WU Dan-bin, et al. Mechanism of Buyang Huanwu Tang in Intervening Hypoxia Preconditioning Fibroblast and Promoting Mesenchymal Stem Cell Migration[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(23): 112-118. DOI: 10.13422/j.cnki.syfjx.20182331.
Objective:To explore the mechanism of Buyang Huanwu Tang in intervening hypoxia preconditioned cardiac fibroblasts and promoting mesenchymal stem cell migration. Method:The 6.5
13
26 g·kg-1 Buyang Huanwu Tang and the same volume of distilled water were used to continuously administer SD(Sprague Dawley)rats for 7 days. Then
serum containing Buyang Huanwu Tang and blank serum were prepared. After different doses of serum containing Buyang Huanwu Tang and intervening hypoxia preconditioned cardiac fibroblasts(CFs)for 24 h
enzyme-linked immunosorbent assay(ELISA)
real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot were used to detect the protein levels of hypoxia-inducible factor-1α(HIF-1α)
monocyte chemotactic protein-1(MCP-1)and hepatocyte growth factor (HGF) in CF culture medium. After culture medium intervened the mesenchymal stem cells (MSC)
the MSC were tested for cell migration. Result:Compared with normoxic group
hypoxia could significantly promote the secretion of HIF-1α
MCP-1 and HGF of CFs (P<0.01). At the same time
the levels of HIF-1α
MCP-1 and HGF were significantly increased after intervention of MSC with hypoxia-pretreated CFs (P<0.01). When different doses of serum containing Buyang Huanwu Tang were given
the expressions were further increased compared with the hypoxic group (P<0.05
P<0.01). After HIF-1α inhibitor YC-1 was given
the expressions of MCP-1 and HGF were increased in Buyang Huanwu Tang group(P<0.05). Conclusion:Buyang Huanwu Tang combined with hypoxia preconditioning CFs paracrine effect can promote the migration of MSC
which may be achieved by up-regulating the expression of HIF-1α and increasing the expression of the migration factors MCP-1 and HGF.