西羅莫司緩釋微球的制備及其對淋巴細(xì)胞增殖的抑制作用研究
[Abstract]:Aim to study the drug release behavior of sirolimus sustained release microspheres in vitro and its inhibitory effect on lymphocyte proliferation. Methods Sirolimus sustained release microspheres were prepared by emulsification-solvent volatilization method. The morphology of sirolimus microspheres was observed by transmission electron microscope (TEM). The drug loading, encapsulation efficiency and drug release rate in vitro were determined. The inhibition rate of sustained-release microspheres on human lymphocytes was determined by thiazolyl (MTT) method. Results the average particle size of sirolimus sustained-release microspheres was (186.73 鹵12.62) nm, loading (28.74 鹵2.63)%, and the encapsulation efficiency was (73.53 鹵7.12)%. The accumulative drug release rate was 93.15 after 168 hours after the drug release reached 47.3% in 24 hours. The inhibition rates of sirolimus slow-release microspheres on lymphocyte proliferation were 18.28 ~ 33.9610 and 50.2453.91respectively, and the inhibition rates of sirolimus sustained release microspheres on lymphocyte proliferation were 83.02 and 73.91h, respectively. Conclusion sirolimus sustained-release microspheres have a good sustained release effect in vitro and inhibit lymphocyte proliferation.
【作者單位】: 首都醫(yī)科大學(xué)附屬北京世紀(jì)壇醫(yī)院藥劑科;解放軍總醫(yī)院老年醫(yī)學(xué)研究所;
【分類號】:R943;R96
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