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Transfer of interferon-producing macrophages: new approach to viral chemotherapy
Science (New York, N.Y.)
|November 20, 1970
Abstract:
Mice were protected from infection with Semliki Forest virus and encephalomyocarditis virus by the transfer of peritoneal macrophages that were stimulated to produce interferon in vitro by exposure to a nonreplicating virus. This method of therapy was also utilized in animals infected with encephalomy-ocarditis virus after onset of clinical signs. Of these animals 40 percent recovered, but only 9 percent of the control group recovered.
Insights
Transferring virus-stimulated macrophages protected mice from Semliki Forest virus and encephalomyocarditis virus. This interferon-inducing therapy improved survival rates, even after clinical signs appeared.
Area of Science:
- Virology
- Immunology
- Cell Biology
Background:
- Viral infections pose significant threats to animal health.
- Interferon plays a crucial role in antiviral defense.
- Macrophage-based therapies are being explored for infectious diseases.
Purpose of the Study:
- To investigate the therapeutic potential of interferon-producing macrophages against viral infections.
- To evaluate the efficacy of this immunotherapy in a mouse model.
Main Methods:
- Mice were infected with Semliki Forest virus and encephalomyocarditis virus.
- Peritoneal macrophages were stimulated in vitro with a nonreplicating virus to produce interferon.
- Stimulated macrophages were transferred to infected mice.
- Therapy was administered both prophylactically and therapeutically after disease onset.
Main Results:
- Transfer of stimulated macrophages protected mice against Semliki Forest virus and encephalomyocarditis virus infection.
- In encephalomyocarditis virus-infected mice treated after clinical signs appeared, 40% recovered.
- Control group recovery rate was significantly lower at 9%.
Conclusions:
- Virus-stimulated macrophages can confer protection against viral infections.
- Macrophage-based interferon induction is a viable therapeutic strategy for viral diseases.
- This immunotherapy shows promise, particularly when administered post-infection onset.