作者:Chi, Qiang、Xie, Xiangyang、Zhang, Jianwei、Yang, Yuan、Li, Zhiping、Mei, Xingguo
DOI:10.1691/ph.2008.8580
日期:——
The ethyl ester derivative of thymopentin was synthesized and characterized. The biological activities of thymopentin were evaluated by mouse spleen lymphocyte proliferation test and superoxide dismutase activity assay. Compared with thymopentin, the synthesized ethyl ester showed more potent immunoregulation activity in the MTT assay and anti-oxidation activity in the immune-suppressed rat model induced by hydrocortisone. The half life of the ester derivate in rat plasma determined by HPLC was slightly longer than that of thymopentin. The ester derivate gained advantages in activity and stability compared to thymopentin.
合成并鉴定了胸腺五肽的乙酯衍生物。小鼠脾脏淋巴细胞增殖试验和超氧化物歧化酶活性试验评估了胸腺五肽的生物活性。与胸腺五肽相比,合成的乙酯在 MTT 试验中显示出更强的免疫调节活性,在氢化可的松诱导的免疫抑制大鼠模型中显示出更强的抗氧化活性。通过高效液相色谱法测定,酯衍生物在大鼠血浆中的半衰期略长于胸腺五肽。与胸腺五肽相比,酯类衍生物在活性和稳定性方面更具优势。