Enhancement by Interferon of the Specific Cytotoxicity of Sensitized Lymphocytes

Mouse interferon preparations enhanced the specific cytotoxicity of sensitized lymphocytes for allogeneic target tumor cells. The factor responsible for the enhancement of cytotoxicity could not be dissociated from the antiviral activity of interferon by standard physicochemical means. Thus, in addition to its well-known antiviral activity, and its effect on cell division, interferon also appears to enhance a specialized cellular function. It is suggested that a common mechanism of action underlies these seemingly different biologic phenomena, and that interferon may play a role in the regulation of fundamental cellular processes

Enhancement by Interferon of the Expression of Surface Antigens on Murine Leukemia L 1210 Cells

Preparations of mouse interferon enhanced the expression of surface antigens of murine leukemia L 1210 cells, as determined by their alloantibody-absorbing capacity. The factor responsible for the enhancement of surface antigen expression could not be dissociated from the antiviral activity of interferon by standard physicochemical means. Likewise, interferon did not increase the antibody-absorbing capacity of an interferon-resistant subline of L 1210 cells. We conclude that interferon treatment of L 1210 cells is accompanied by modifications of the cell surface

Conséquences pathologiques d’un excès d’interféron

Dans cette brève revue, nous montrons les liens entre les différentes recherches qui ont conduit à la mise en évidence d’un rôle délétère d’un excès d’interféron de type 1, depuis la découverte de son activité antivirale en 1957 par A. Isaacs et J. Lindemann jusqu’au concept d’interféronopathie introduit par Y. Crow en 2011