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Cross-resistance between Strongyloides venezuelensis and S. ratti in mice

  • M. Korenaga (a1), Y. Hitoshi (a2), K. Takatsu (a2) and I. Tada (a3)

Abstract

Cross-resistance between Strongyloides venezuelensis and S. ratti was tested in mice. The mice were immunized with S. ratti and challenged with infective filariform larvae or larvae recovered from the lungs of mice, of a heterologous species, S. venezuelensis. In this system, cross-resistance was expressed to the intestinal stage but not to the migrating stage of the parasite. Anti-interleukin (IL)-5 monoclonal antibody (mAb) treatment showed that peripheral blood eosinophilia after infection with both species of the genus Strongyloides was dependent on IL-5. Cross-resistance expressed to the intestinal stages was inhibited partially by injection of anti-IL-5 mAb.

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*Correspondence and present address: Department of Parasitology, Kochi Medical School, Nankoku, Kochi 783, Japan.

References

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Cross-resistance between Strongyloides venezuelensis and S. ratti in mice

  • M. Korenaga (a1), Y. Hitoshi (a2), K. Takatsu (a2) and I. Tada (a3)

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