ZHANG Ling,BAI Hai,WANG Cun-bang,OU Jian-feng,YANG Guo-rong.Immunocompetent cells and immune regulator improve apopotosis of mesenchymal stem cells by down-regulating heme oxygenase-1[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(21):2143-2145.
ZHANG Ling,BAI Hai,WANG Cun-bang,OU Jian-feng,YANG Guo-rong.Immunocompetent cells and immune regulator improve apopotosis of mesenchymal stem cells by down-regulating heme oxygenase-1[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(21):2143-2145.DOI:
Objective To investigate the effect of immunocompetent cells and immune regulator on the apoptosis of human mesenchymal stem cells (MSCs) and on mRNA expression of heme oxygenase-1. Methods MSCs were cultured by density gradient centrifugation and then identified by flow cytometry. RT-PCR was used to detect HO-1 mRNA expression and flow cytometry was used to analyze cell apoptosis after the stimulation of IFN-γ and PHA-activated T cells. Results The mRNA expression of Heme oxygenase-1 was observed in MSCs and decreased after the stimulation of IFN-γ and activated T cells. IFN-γ
znpp-Ⅸ and combined these two caused obvious cell apoptosis in MSCs
with an apoptotic rate of (56.50±0.16)%
(56.85±2.27)%
and (82.53±2.65)% respectively. All of them had a significant difference compared with the normal MSCs [(7.56±1.43)%
P0.05]. Conclusion Immunocompetent cells and immune regulator down-regulates the expression of HO-1 mRNA in MSCs