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. 1989 Jan;57(1):191–195. doi: 10.1128/iai.57.1.191-195.1989

Experimental production of proliferative ileitis in Syrian hamsters (Mesocricetus auratus) by using an ileal homogenate free of Campylobacter jejuni.

H F Stills Jr 1, R R Hook Jr 1
PMCID: PMC313067  PMID: 2462537

Abstract

The role of Campylobacter jejuni in the pathogenesis of proliferative ileitis of Syrian hamsters (Mesocricetus auratus) has been uncertain. C. jejuni has been implicated as the etiologic agent on the basis of the campylobacter-type morphology of the intracellular organism and the repeated microbiologic isolation of C. jejuni from hamsters with proliferative ileitis. The inability to reproduce the disease with pure culture inocula, coupled with immunohistochemical studies, however, has suggested that although C. jejuni may be present in the ilea of infected hamsters, its involvement in the pathogenesis of proliferative ileitis is questionable. In this study hamsters were inoculated with infective ileal homogenates prepared from ilea which were extensively washed to remove the ileal contents before grinding. The ilea from hamsters inoculated with this homogenate were also washed before being ground and used to experimentally inoculate a second group of hamsters. Of the 20 hamsters from this second group, 12 developed lesions typical of proliferative ileitis. Extensive microbiologic cultures from these hamsters were negative for C. jejuni. Immunofluorescence studies with a C. jejuni-specific monoclonal antibody were also negative. The use of a Campylobacter genus-specific monoclonal antibody, however, revealed numerous campylobacter-type organisms within the ileal epithelial cells of the crypts and villi. The presence of C. jejuni is therefore apparently not necessary for the production of proliferative ileitis in hamsters, and the intracellular campylobacter-type organism present in the ileal epithelial cells of infected hamsters is probably not C. jejuni.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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