Robert Szigeti

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Macrophage migration inhibition responses of mice immunized with mutant polyoma viruses or with cells transformed and/or infected by them have been studied. The macrophage migration inhibition reaction revealed individual differences. In several cases, mice immunized with a mutant virus responded prefer entially or exclusively to extracts of cells(More)
The Epstein-Barr virus (EBV)-specific leukocyte migration in hibition (LMI) reaction was used to detect EBV antigens in human tumor biopsies in parallel with nucleic acid hybridization for EBV DNA. None of six EBV DNA-negative tumors gave any significant LMI reaction. Fourteen of 17 EBV DMA-positive tumors gave a significant difference between the migration(More)
Interferon-alpha 1 from Escherichia coli transformed with a hybrid plasmid containing a human leukocyte complementary DNA insert, induces resistance to virus in appropriate target cells. It also shares the following properties with natural leukocyte interferon (IFN). (i) It enhances natural killing activity of human lymphocytes, (ii) it enhances(More)
Although first recognized by its effect on virus-cell interactions, interferon (IFN) has a variety of other effects. It can affect cell proliferation, modify the immune response at several levels, enhance the cytotoxic action of lymphocytes, suppress antibody formation and inhibit the development of delayed-type hypersensitivity (DTH) reactions. Therefore(More)
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