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Infect Immun. 1983 August; 41(2): 546-548

Recombinant mouse interferon-gamma regulation of antibody production.

ABSTRACT

Interferon-gamma produced in monkey cells by transfection with mouse interferon-gamma cDNA suppressed the mouse in vitro antibody response in a manner similar to that of natural mouse interferon-gamma. Significant suppression was obtained with as little as 1 U of interferon. Recombinant human interferon-gamma produced by cloning in a similar fashion was not suppressive. Both the suppressive and the antiviral activities of recombinant interferon-gamma were neutralized by antibodies to mouse natural interferon-gamma. Thus, interferon-gamma was responsible for the immunosuppression. At the cellular level, the recombinant interferon-gamma was capable of activating macrophages to suppress antibody production. The data provide clear-cut evidence that interferon-gamma plays an important role in regulation of immunological processes.

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