The Effect of Theophylline on Eosinophil Apoptosis / 中国医师杂志

ABSTRACT

Objective To vie the effect of theophylline on eosinophil (Eos) apoptosis. Methods EDTA-anticoagulated venous blood was obtained from 15 healthy volunteers and pre-incubated with saline or theophylline (10 -4 M) or dexamethasone and rhIL-5(10 -8 M),respectively.The mRNA of bcl-2 and bax were determined by reverse transcriptase polymerase chain reaction(RT-PCR),and their cytoplasm proteins were determined by flo cytometry. Results Analysis revealed that the bax protein express intracellular without any stimulator,but not bcl-2 in protein and mRNA levels.And culturing Eos in the presence of 10 -8 M IL-5 for 24 hours up-regulating bcl-2 mRNA ( P