Blast transformation of lymphocytes and the activity of natural killer cells in the presence of γ-globulinin vitro
Autor: | I. A. Tarkhanova, E. E. Babaeva, S. B. Cheknev, Ya. G. Ashmanova, A. Ya. Kul'berg |
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Rok vydání: | 1994 |
Předmět: | |
Zdroj: | Bulletin of Experimental Biology and Medicine. 118:1317-1321 |
ISSN: | 1573-8221 0007-4888 |
DOI: | 10.1007/bf02445740 |
Popis: | The cytotoxic activity of natural killer cells against3H-uridine-labeled target cells (human erythromyeloleukosis cells K-562) and the intensity of spontaneous blast transformation are studiedin vitro in the presence of human serum γ-globulin. It is shown that spontaneous blast transformation is 49–51% due to the presence of aggregated γ-globulin, while the aggregate-free γ-globulin fraction does not induce this reaction. The cytotoxic activity of natural killer cellsin vitro declines in the presence of native γ-globulin, which is related to the influence of aggregated γ-globulin, the intensity of whose formation may increase upon a manyfold decrease in the γ-globulin content of the preparation. |
Databáze: | OpenAIRE |
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