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Similar effects of treatment with alpha interferon on the protein synthesis of human large granular lymphocytes, T cells, and monocytes.
Umeå University, Faculty of Medicine, Department of Medical Biochemistry and Biophysics.
1985 (English)In: Scandinavian Journal of Immunology, ISSN 0300-9475, E-ISSN 1365-3083, Vol. 22, no 5, 519-28 p.Article in journal (Refereed) Published
Abstract [en]

Preparations of human large granular lymphocytes (LGL), T cells, and monocytes (MC) were obtained through centrifugation on Percoll gradients and preparative E-rosetting. The different preparations contained more than 80% of the appropriate cell type, as judged by their ability to lyse 51Cr-labelled K562 cells, cell morphology, and the presence of cell surface structures recognized by the OKT3, OKT10, Leu 7 and OKM1 monoclonal antibodies. The protein synthesis is unstimulated and alpha interferon (IFN-alpha)-treated cells of the different types was studied by subjecting 35S-methionine-labelled cell extracts to two-dimensional gel electrophoresis. The general pattern of protein synthesis in LGL and T cells was virtually identical, whereas at least 7 major proteins were synthesized at a higher rate in monocytes. The effects of IFN-alpha on the protein synthesis of LGL and T cells were identical, IFN-alpha increasing the rate of synthesis of 9 proteins. These proteins were also expressed, but not always IFN-augmentable, in monocytes. No additional, cell-type associated, IFN-inducible proteins were found. This suggests that the augmenting effect of IFN-alpha on the cytotoxic capacity of LGL, T cells, and monocytes may be to affect common steps in their lytic machineries.

Place, publisher, year, edition, pages
1985. Vol. 22, no 5, 519-28 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:umu:diva-59769PubMedID: 3878579OAI: diva2:556451
Available from: 2012-09-25 Created: 2012-09-25 Last updated: 2012-09-25

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