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Synthesis of [Phe(4F)3]thymopoietin II and examination of its immunological effect on the impaired blastogenic response of T-lymphocytes of uremic patients.

作者信息

Abiko T, Sekino H

机构信息

Kidney Research Laboratory, Sendai, Japan.

出版信息

Bioorg Med Chem. 1995 Oct;3(10):1369-75. doi: 10.1016/0968-0896(95)00121-v.

Abstract

[Phe(4F)3]thymopoietin II was synthesized using a conventional solution method. The deprotection of the protected [Phe(4F)3]thymopoetin II was achieved by treatment with 1 M trifluoromethanesulfonic acid:thioanisole (molar ratio 1:1) in trifluoroacetic acid in the presence of dimethylselenide and m-cresol. The synthetic f1p4(4F)3]thymopoietin II and thymopoietin II were tested for effect on impaired T-lymphocyte transformation by phytohemagglutinin in uremic patients suffering from recurrent infectious diseases. The restoring activity on the impaired phytohemagglutinin stimulation of T-lymphocytes was obtained after incubation of peripheral lymphocytes isolated from uremic patients with the synthetic [Phe(4F)3]thymopoietin II. This peptide exhibited far stronger restoring effect than that of our synthetic thymopoietin II.

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