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S A Pavulsone

Publications and source records attributed to S A Pavulsone.

7 recordsLinked to original sources

[Advantages of using swine serum in culturing animal and human cell lines].

Using the culture of lymphoid human cells, mice myeloma cells and hybridoma (the latter was obtained by fusion of myeloma cells with those of mice spleen immunized with phage lambda), the fetal serum was shown to be surpassed in growth activity by that from adult swines. This fact is especially pronounced at small serum concentrations. When hybridoma cells were cultured there were no differences in titre of monoclonal antibodies specific to phage lambda with the use of both sera. The possibility of substitution of swine serum for human one was demonstrated using the culture of lymphocytes from human peripheral blood.

Animals↗

[Extracts of regenerating Planarians regulate proliferation of vertebrate cells].

The effects of extracts from intact and regenerating planarians on cell behaviour in culture were studied. The extracts were added to the culture of Chinese hamster fibroblasts and to the primary culture of human lymphocytes. Some extracts contained active agents which influenced the proliferation of fibroblasts increasing or decreasing the mitotic index. The extracts exerted no effect on the mitotic index of lymphocytes. When the extracts were added to the lymphocyte culture together with phytohemagglutinin, which induces the proliferation, the mitotic index somewhat increased. The extracts of regenerating planarians contain factors which activate and inhibit cell proliferation in culture. The active factors stimulated, rather than induced proliferation.

Animals↗