The change of TXA2 and PGI2 in Rabbit model of pulmonary hypertension after progenitor cell transplantation / 中国生化药物杂志

ABSTRACT

Objective To discuss the changes of plasma TXA2 and PGI2 levels in the rabbit model of pulmonary hypertension (PHA)induced by monocrotaline (MCT)when transplanted with endothelial progenitor cells (EPCs). Methods The rabbit pulmonary hypertension model was constructed by MCT induction. Rabbit endothelial progenitor cells were induced,separated and identified in vitro.50 New Zealand white rabbits were randomly divided into 3 groups,normal control group and model group were given M199 culture medium by tail vein injection,EPCs treatment group were given EPCs marked with fluorescent though tail vein injection. The levels of plasma TXB2 and 6-keto-PGF1αwere detected and their ratio were calculated after three weeks. Results Compared with model group,the content of 6-keto-PGFlαin plasma in EPCs group was (130.67 ±17.54)u mol/L,which was increased sinnificantly. The content of TXB2 was (402.89 ±27.98 )u mol/L,which was decreased significantly.The ratio of TXB2 to 6-keto-PGF1 alpha between two groups was statistically significant(P<0.01 ). Conclusion EPCs transplantation can reduce the content of TXA2 and increase the content of PGI2 in the pulmonary hypertension rabbits induced by monocrotaline,then reverse the damage of pulmonary hypertension.