Molecular and genetic characterisation of the host-protective oncosphere antigens of taeniid cestode parasites

Highly effective recombinant vaccines have been developed against Taenia ovis infection in sheep, Taenia saginata infection in cattle, Taenia solium infection in pigs, Echinococcus granulosus and Echinococcus multilocularis infections in a variety of intermediate host species. These vaccines have be...

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Veröffentlicht in:International Journal for Parasitology 2003-09, Vol.33 (11), p.1207-1217
Hauptverfasser: Lightowlers, M.W, Gauci, C.G, Chow, C, Drew, D.R, Gauci, S.M, Heath, D.D, Jackson, D.C, Dadley-Moore, D.L, Read, A.J
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container_end_page 1217
container_issue 11
container_start_page 1207
container_title International Journal for Parasitology
container_volume 33
creator Lightowlers, M.W
Gauci, C.G
Chow, C
Drew, D.R
Gauci, S.M
Heath, D.D
Jackson, D.C
Dadley-Moore, D.L
Read, A.J
description Highly effective recombinant vaccines have been developed against Taenia ovis infection in sheep, Taenia saginata infection in cattle, Taenia solium infection in pigs, Echinococcus granulosus and Echinococcus multilocularis infections in a variety of intermediate host species. These vaccines have been based on the identification and expression in Escherichia coli of antigens derived from the oncosphere life cycle stage, contained within the parasites' eggs. Investigation of the molecular aspects of these proteins and the genes encoding them have revealed a number of common features, including the presence of a predicted secretory signal sequence, and one or two copies of a fibronectin type III domain, each encoded by separate exons within the associated gene. Evidence has been obtained to confirm glycosylation of some of these antigens. Ongoing investigations will shed light on the biological roles played by the proteins within the parasites and the mechanism by which they make the parasites vulnerable to vaccine-induced immune responses.
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subjects Animals
Antigens, Helminth - genetics
Antigens, Helminth - immunology
Cattle
Cattle Diseases - prevention & control
Cysticercosis
Echinococcosis - prevention & control
Echinococcus
Epitopes
Fibronectin domain
Gene structure
Genes, Helminth
Glycosylation
Host-Parasite Interactions
Hydatid
Ovum - immunology
Reverse Transcriptase Polymerase Chain Reaction
RNA Splicing
Sheep
Sheep Diseases - prevention & control
Swine
Swine Diseases - prevention & control
Taenia
Taenia - genetics
Taenia - immunology
Taeniasis - prevention & control
Vaccine
Vaccines, Synthetic - therapeutic use
title Molecular and genetic characterisation of the host-protective oncosphere antigens of taeniid cestode parasites
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