This study reports on the kinetics of antibody production to Echinostoma caproni and the dynamics of antigens in feces and sera in 2 experimental hosts (hamsters and rats) that display different degrees of susceptibility with this echinostome. Echinostoma caproni produced chronic infections in hamsters, whereas rats lost the infection at 49–56 days postinfection (DPI). Hamsters developed higher antibody responses than rats, probably in relation to different intestinal absorptions of worm antigens in each host species. The levels of coproantigens were indicative of the course of infection in each host. Positive coproantigen levels were detected at 1–2 DPI in both hosts, and the values remained positive until the end of the experiment in hamsters; in rats, the coproantigen levels reverted to negative values, coinciding with the loss of infection. High levels of circulating antigens were detected in hamsters from 21 DPI to the end of the study. In contrast, low levels of E. caproni seroantigens were detected in rats only. These observations may reflect the differences in local inflammatory responses induced by E. caproni in each host species.
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August 2004
IMMUNOLOGY|
August 01 2004
KINETICS OF ECHINOSTOMA CAPRONI (TREMATODA: ECHINOSTOMATIDAE) ANTIGENS IN FECES AND SERUM OF EXPERIMENTALLY INFECTED HAMSTERS AND RATS Available to Purchase
Rafael Toledo;
Rafael Toledo
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain. [email protected]
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Ana Espert;
Ana Espert
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain. [email protected]
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Carla Muñoz-Antoli;
Carla Muñoz-Antoli
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain. [email protected]
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Antonio Marcilla;
Antonio Marcilla
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain. [email protected]
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Bernard Fried;
Bernard Fried
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain. [email protected]
* Department of Biology, Lafayette College, Easton, Pennsylvania 18042
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J. Guillermo Esteban
J. Guillermo Esteban
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain. [email protected]
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J Parasitol (2004) 90 (4): 752–758.
Citation
Rafael Toledo, Ana Espert, Carla Muñoz-Antoli, Antonio Marcilla, Bernard Fried, J. Guillermo Esteban; KINETICS OF ECHINOSTOMA CAPRONI (TREMATODA: ECHINOSTOMATIDAE) ANTIGENS IN FECES AND SERUM OF EXPERIMENTALLY INFECTED HAMSTERS AND RATS. J Parasitol 1 August 2004; 90 (4): 752–758. doi: https://doi.org/10.1645/GE-279R
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