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Early lymphocytic responses to Heligmosomoides polygyrus infections in mice

Published online by Cambridge University Press:  05 June 2009

S. J. Parker  and
C. J. Inchley
S. J. Parker
Affiliation:
Department of Zoology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, Scotland, UK
C. J. Inchley*
Affiliation:
Department of Zoology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, Scotland, UK
*
*Author to whom correspondence should be addressed.
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Abstract

Responses to parasite antigens were studied in three strains of mice, BALB/c, CBA and NIH, during the initial phases of a primary infection with the intestinal nematode Heligmosomoides polygyrus. Changes in the rate of in vivo cell division were analysed in mesenteric lymph nodes and spleens during the phases of larval maturation and adult establishment, and related to changes in organ size and cellularity. The nature of the proliferating cell populations was also investigated by flow cytometry, carried out on cell suspensions prepared at the time when larval development was complete. The variation in the ability of the strains of mice to become resistant to a challenge infection was manifest as only slight differences in their initial responses to infection. All three strains showed an increase in 125I-iododeoxyuridine incorporation in their mesenteric lymph nodes and spleen, and an increase in B cell frequency over that of T cells in the draining lymph nodes. Although lymph node weight in NIH mice continued to rise over a 4 week period, the majority of responses measured were short lived, peaking 10 to 14 days after infection. The low responder status of CBA mice was thus reflected in a transient and relatively small enlargement of lymphoid tissues, but their early proliferative responses to antigen were similar in scale to those of responder strains.

Keywords

Heligmosomoides polygyrusNematospiroides dubiustissue responseslympho-proliferation
Type
Research Article
Information
Journal of Helminthology , Volume 64 , Issue 1 , March 1990 , pp. 35 - 45
Copyright
Copyright © Cambridge University Press 1990

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