Stimulation of antibody formation through polypeptide thymic fraction (TP) in irradiated animals.
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Biomedical subjects
Publications and source records attributed to I Potop.
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The authors report on preliminary data concerning the antiproliferative activity of thymosterin upon the growth of the KB tumor cells in vitro and in vivo. The experiments in vitro showed an intense antiblastic action of thymosterin, which was proportional to the administered dose. The preliminary results of the in vivo experiments suggest that inhibitory effect of thymosterin on the h 18 R tumor growth in newborn rats.
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The authors show that a thymus polypeptide extract, TP1, prepared by them has the effedt of stimulating the formation of anti-influenza serum antibodies and do not show antigenic properties. The extract causes increase of serum lymphocytes. Electrophoretic analysis in polyacrylamide gel reveals a number of 11 fraction, while paper chromatography for amino acids, a number of 12 spots.
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The thymus polypeptide extract TP1 administered to X-rayed animals shows a protecting effect on the level of serum anti-influenza antibodies in the rats inoculated with A2 influenza vaccine and reduces the haemagglutinating titres in the mice inoculated with the A PR8 influenza virus.
Administration of thymus polypeptide (TP) extracts to the mouse inoculated with the A2 AICHI influenza virus strain, causes a significant decrease in hemagglutination titres in the lung cells suspensions of the treated animals as compared to the nontreated controls.