Hymenolepis citelli, H. diminutaandH. microstoma: immunoglobulin-containing cells in the lamina propria of the mouse gut during primary and secondary infections

Journal of Helminthology - Tập 61 Số 4 - Trang 329-340 - 1987
Sidi T.O. Alghali1
1M. R. C. Experimental Parasitology Group, Department of Zoology, University of Nottingham, University Park, Nottingham, NG7 2RD, England

Tóm tắt

ABSTRACT

The indirect immunofluorescent technique was used to determine the occurrence of IgA, IgM and IgG1immunoglobulin-containing cells in local intestinal mucosal immune responses toHymenolepis citelli, H. diminutaandH. microstomainfections in mice. In the intestinal lamina propria ofH. citelliandH. diminutainfected mice there was no increase in the mean numbers of immunoglobulin-containing cells when compared with uninfected control mice, but there was inH. microstomainfected mice. The numbers of IgG1– positive cells in both infected and uninfected mice were very small relative to IgA and IgM immunocytes. The distribution of immunocytes in the lamina propria of infected and uninfected mice was essentially similar and the localization of isotypes in duodenal sections showed no immunoglobulins in the villous epithelial cells. There was also no marked difference between primary and secondary infections indicating that immunoglobulin-containing cells play no major role in functional immunity against hymenolepid infections in the mouse. The presence of IgA and IgM was also demonstrated on the tegument of the tapeworms, although the distribution was patchy and more abundant onH. microstomathan onH. diminutaorH. citelli. The time of appearance of both isotypes was latest onH. citelli.

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Journal of Helminthology

Tập 61 Số 4

329-340

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