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Intestinal and systemic humoral immunological events in the susceptible Balb/C mouse strain after oral administration of Echinococcus multilocularis eggs
Author(s) -
PATER CLOTILDE,
MÜLLER VOLKER,
HARRAGA SAÏD,
LIANCE MARTINE,
GODOT VÉRONIQUE,
CARBILLET JEANPIERRE,
MEILLET DOMINIQUE,
RÖMIG THOMAS,
VUITTON DOMINIQUE ANGÈLE
Publication year - 1998
Publication title -
parasite immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 75
eISSN - 1365-3024
pISSN - 0141-9838
DOI - 10.1046/j.1365-3024.1998.00195.x
Subject(s) - echinococcus multilocularis , biology , immunology , immunity , immune system , humoral immunity , oral administration , echinococcus , saline , echinococcosis , endocrinology , zoology
The aim of the study was to investigate the systemic and, for the first time, the intestinal humoral events in the susceptible Balb/C mouse strain after oral administration of Echinococcus multilocularis eggs. Thirty‐one mice were divided into three groups; W‐2 , W‐8 and control group. Each mouse of the W‐2 and W‐8 groups was orally infected with 1,500 E. multilocularis eggs, two weeks and eight weeks before sacrifice respectively. Control group mice received phosphate buffer saline. Measurement of anti‐ E. multilocularis and non‐specific IgG, IgA and IgM, and of a transudation marker, albumin, were performed in serum and intestinal washings by a time‐resolved immunofluorometric assay. These results were complemented by microscopic examination of the intestinal mucosa. This infection model is well‐suited to the study of mucosal immunity during alveolar echinococcosis. It showed a major specific intestinal response in the early stage of the disease whereas the systemic response predominated later in the disease. Histopathological studies and calculation of the relative coefficient of excretion of Ig also confirmed that the presence of the parasite, even during a short period, was responsible for a local immunological and inflammatory response and for a change in mucosal permeability. Mucosal immunity could thus play a role in tolerance induction against E. multilocularis that could be a prerequisite for the subsequent development of the larvae in the liver, and for the occurrence of the parasitic disease, alveolar echinococcosis .