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Impairment of primary expulsion of Trichuris muris in mice concurrently infected with Nematospiroides dubius

Published online by Cambridge University Press:  06 April 2009

Simon N Jenkins  and
Jerzy M Behnke
Simon N Jenkins
Affiliation:
Wellcome Laboratories for Experimental Parasitology, University of Glasgow, Bearsden Road, Bearsden, Glasgow, G61 1QH
Jerzy M Behnke
Affiliation:
Wellcome Laboratories for Experimental Parasitology, University of Glasgow, Bearsden Road, Bearsden, Glasgow, G61 1QH
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Extract

Primary immune expulsion of Trichuris muris was markedly delayed by concurrent infection with Nematospiroides dubius. Maximum delay of expulsion was dependent on size and timing of N. dubius infection relative to T. muris infection. In NIH mice infection with 400 N. dubius larvae immediately before or after T. muris infection was found to be most effective in suppressing expulsion. Infection on day 8 of T. muris infection, when mice are sensitized to T. muris, also impaired expulsion. From this evidence it is suggested that the larvae of N. dubius are immunosuppressive and that the efferent role of the immune response to T. muris is inhibited. The results are discussed in terms of non-specific immunosuppression and their relevance to the tropical disease situation is emphasized.

Type
Research Article
Information
Parasitology , Volume 75 , Issue 1 , August 1977 , pp. 71 - 78
Copyright
Copyright © Cambridge University Press 1977

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References

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