Assessment and optimization of Theileria parva sporozoite full-length p67 antigen expression in mammalian cells
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چکیده
منابع مشابه
Assessment and optimization of Theileria parva sporozoite full-length p67 antigen expression in mammalian cells
Delivery of various forms of recombinant Theileria parva sporozoite antigen (p67) has been shown to elicit antibody responses in cattle capable of providing protection against East Coast fever, the clinical disease caused by T. parva. Previous formulations of full-length and shorter recombinant versions of p67 derived from bacteria, insect, and mammalian cell systems are expressed in non-native...
متن کاملBaculovirus surface display of Theileria parva p67 antigen preserves the conformation of sporozoite-neutralizing epitopes.
Theileria parva is an intracellular protozoan parasite that causes East Coast fever, a severe lymphoproliferative disease in cattle. Previous attempts to produce recombinant sporozoite surface antigen (p67) in bacterial or insect cells for vaccine purposes have not resulted in a correctly folded protein. Here, we report the expression of N- and C-terminal domains of p67 fused to the baculovirus...
متن کاملCharacterization of the Theileria parva sporozoite proteome
East Coast fever is a lymphoproliferative disease caused by the tick-borne protozoan parasite Theileria parva. The sporozoite stage of this parasite, harboured and released from the salivary glands of the tick Rhipicephalus appendiculatus during feeding, invades and establishes infection in bovine lymphocytes. Blocking this initial stage of invasion presents a promising vaccine strategy for con...
متن کاملConservation of the sporozoite p67 vaccine antigen in cattle-derived Theileria parva stocks with different cross-immunity profiles.
Immunity to Theileria parva infection in cattle is often parasite stock specific. The antigenic diversity which is expressed at the schizont stage of the parasite together with a wild reservoir of the organism in buffalo has complicated the development of effective disease control by immunization. We have previously shown that about 70% of cattle inoculated with recombinant forms of p67, a spor...
متن کاملA recombinant sporozoite surface antigen of Theileria parva induces protection in cattle.
At present immunization against Theileria parva is by infection with live sporozoites and simultaneous treatment with a long-acting oxytetracycline. This method has major limitations in that live organisms are used and the immunity engendered is parasite stock specific. In an attempt to develop an alternative immunization procedure, the gene encoding p67, a major surface antigen of sporozoites,...
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ژورنال
عنوان ژورنال: PLOS Neglected Tropical Diseases
سال: 2017
ISSN: 1935-2735
DOI: 10.1371/journal.pntd.0005803