Prevalence of antibodies to unique Taenia solium oncosphere antigens in taeniasis and human and porcine cysticercosis

Manuela Verastegui, Robert H. Gilman, Hector H. Garcia, Armando E. Gonzalez, Yanina Arana, Cesar Jeri, Iskra Tuero, Cesar M. Gavidia, Min Levine, Victor C.W. Tsang

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

The presence of two oncosphere antigens (OAs) of 22.5 and 31.3 kD in whole and excretory/secretory (ES) OA preparations of both Taenia solium and T. saginata or in antigen preparations from T. solium metacestodes or immature tapeworms was assessed. This included an evaluation of whether antibodies to other cestodes cross-reacted to these OAs. The OAs were present in whole oncosphere extract and E/S antigens of T. solium, but were not present in other stages (immature tapeworm or metacestode) or in OAs of T. saginata. The majority (95%) of T. solium tapeworm carriers had antibodies to these OAs, while only 20% of active neurocysticercosis cases were positive. No antibodies to the OAs were found in healthy controls, subjects infected with Hymenolepis nana, patients with hydatid disease, T. saginata tapeworm carriers, hamsters infected with immature T. solium tapeworms, or dogs infected with Echinococcus granulosus. The OAs are stage and species specific to T. solium and antibodies to OAs are usually present in tapeworm carriers.
Original languageAmerican English
Pages (from-to)438-444
Number of pages7
JournalAmerican Journal of Tropical Medicine and Hygiene
StatePublished - 1 Oct 2003

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