LIU Shengchun, et al. Expression and significance of heme oxygenase-1 in delayed cardiac xenograft rejection[J]. Journal of Chongqing Medical University, 2005,(5).
LIU Shengchun, et al. Expression and significance of heme oxygenase-1 in delayed cardiac xenograft rejection[J]. Journal of Chongqing Medical University, 2005,(5). DOI: 10.13406/j.cnki.cyxb.2005.05.007.
Objective:To investigate the expression and significance of heme oxygenase-1(HO-1) in delayed cardiac xenograft rejection in NIH-Wistar.Methods:The model of cervical heterotopic heart transplantation in NIH-Wistar was established.The hearts were harvested 1
6
12
24
48 as well as 72 hours before and after transplantion respectively.HO-1mRNA and HO-1 protein were examined by RT-PCR and Western Blot
HO-1 enzymatic activity was examined.The survival time of transplanted heart
in which HO-1 was induced by cobalt protoporphyrin(CoPP)
was compared with the control.Results:HO-1 was expressed in transplanted heart.The expression of HO-1mRNA(t=2.5170
P<0.05)
protein(t=2.3702
P<0.05) and enzymatic activity(t=2.246
P<0.05)in heart 24 and 48 hours after transplantion were higher than those in other groups.Conclusion:The expression peak of HO-1 in NIH-Wistar cardiac transplantation is 24~48 hours after transplantion.HO-1 induced by CoPP can prolong the survival time of delayed xenograft cardiac transplantation.