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Inhibitory effect of interferon on multiplication of Friend leukemia cells in vivo
Abstract:
The multiplication of Friend leukemia cells in the spleens of irradiated or nonirradiated histocompatible DBA/2 mice was determined by the uptake of 125-5-iodo-2'-deoxyuridine. The multiplication was inhibited by daily treatment with mouse interferon preparations or the interferon inducer, Newcastle disease virus. Since, under the experimental conditions used, the proliferation of the Friend leukemia cells was independent of the replication of the Friend virus, the inhibitory effect of interferon might not be mediated by an antiviral effect but by some other mechanism.
Insights
Mouse interferon and Newcastle disease virus inhibited Friend leukemia cell multiplication in mice. This suggests interferon
Area of Science:
- Immunology
- Virology
- Oncology
Background:
- Friend leukemia virus (FLV) causes rapid spleen enlargement.
- Understanding FLV proliferation mechanisms is crucial for developing treatments.
Purpose of the Study:
- To investigate the effect of mouse interferon and Newcastle disease virus (NDV) on Friend leukemia cell multiplication.
- To explore the mechanism of interferon's inhibitory action.
Main Methods:
- Friend leukemia cell multiplication was quantified in DBA/2 mice using 125-I-deoxyuridine uptake.
- Mice were treated daily with mouse interferon or NDV.
Main Results:
- Both mouse interferon and NDV significantly inhibited Friend leukemia cell multiplication.
- Friend leukemia cell proliferation was independent of Friend virus replication under experimental conditions.
Conclusions:
- Interferon's inhibitory effect on Friend leukemia cells may involve non-antiviral mechanisms.
- Further research is needed to elucidate the precise mechanism of interferon-mediated inhibition.