Massively parallel signature sequencing (MPSS) was used to analyze the transcriptome of the intracellular protozoan Theileria parva. In total 1 095 000, 20 bp sequences representing 4371 different signatures were generated from T.parva schizonts. Reproducible signatures were identified within 73%...
Bishop, Richard P.
,
Shah, Tushaar
,
Pelle, Roger
,
Hoyle, D.
,
Pearson, T.
,
Haines, L.
,
Brass, A.
,
Hulme, H.
,
Graham, S.P.
,
Taracha, E.L.N.
,
Lu, C.
,
Hass, B.
,
Wortman, J.
,
White, O.
,
Gardner, M.J.
,
Nene, Vishvanath
,
Villiers, Etienne P. de
,
[Analysis of the transcriptome of the protozoan Theileria parva using MPSS reveals that the majority of genes are transcriptionally active in the schizont stage]
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Analysis of the transcriptome of the protozoan Theileria parva using MPSS reveals that the majority of genes are transcriptionally active in the schizont stage
T cells bearing the gamma delta antigen receptor (gamma delta T cells) can constitute up to 50 percent of T cells in the peripheral blood and lymphoid organs of young cattle. We present data showing that gamma delta T cells are involved in immune responses against Theileria parva. Gamma delta T c...
Daubenberger, C.A.
,
Taracha, E.L.N.
,
Gaidulis, L.
,
Davis, W.C.
,
McKeever, Declan J.
,
[Bovine gamma delta T cell responses to the intracellular protozoan parasite Theileria parva]
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Bovine gamma delta T cell responses to the intracellular protozoan parasite Theileria parva
To evaluate vaccinia virus as a delivery system for recombinant antigen in cattle, calves were immunized with a recombinant vaccinia virus (rVV) expressing the sporozoite surface antigen (p67) of Theileria parva (V-67) combined with those expressing bovine IL-4 (V-IL4) or IL-2 (V-IL2). The anti-p...
Honda, Y.
,
Waithaka, M.M.
,
Taracha, E.L.N.
,
Duchateau, L.
,
Musoke, A.J.
,
McKeever, Declan J.
,
[Delivery of the Theileria parva p67 antigen to cattle using recombinant vaccinia virus: IL-2 enhances protection]
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Delivery of the Theileria parva p67 antigen to cattle using recombinant vaccinia virus: IL-2 enhances protection
East Coast fever (ECF) is a highly fatal lymphoproliferative disease of cattle caused by Theileria parva, a tick-borne intracellular apicomplexan parasite. Parasite antigens that are targets of protective cytotoxic T lymphocyte (CTL) responses are required to formulate a sub-unit vaccine against ...
Akoolo, L.
,
Pelle, Roger
,
Saya, R.
,
Awino, Elias
,
Nyanjui, J.
,
Taracha, E.L.N.
,
Kanyari, P.
,
Mwangi, D.M.
,
Graham, S.P.
,
[Evaluation of the recognition of Theileria parva vaccine candidate antigens by cytotoxic T lymphocytes from Zebu cattle]
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Evaluation of the recognition of Theileria parva vaccine candidate antigens by cytotoxic T lymphocytes from Zebu cattle
Immunity against the bovine intracellular protozoan parasite Theileria parva has been shown to be mediated through the destruction of parasite infected lymphocytes by MHC class I restricted CD8+ CTL. Six parasite proteins targeted by CTL from T. parva immune cattle have been identified and raised...
Graham, S.P.
,
Pelle, Roger
,
Villiers, Etienne P. de
,
Yamage, M.
,
Mwangi, D.M.
,
Honda, Y.
,
Ellis, S.A.
,
MacHugh, Niall D.
,
Morrison, W. Ivan
,
Taracha, E.L.N.
,
[Identification of bovine cytotoxic T lymphocyte epitopes on the intracellular parasite Theileria Parva]
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Identification of bovine cytotoxic T lymphocyte epitopes on the intracellular parasite Theileria Parva
The presence of the schizont stage of the obligate intracellular parasites Theileria parva or T. annulata in the cytoplasm of an infected leukocyte results in host cell transformation via a mechanism that has not yet been elucidated. Proteins, secreted by the schizont, or expressed on its surface...
Casanova, C.L.
,
Xue, G.
,
Taracha, E.L.N.
,
Dobbelaere, D.A.E.
,
[Post-translational signal peptide cleavage controls differential epitope recognition in the QP-rich domain of recombinant Theileria parva PIM]
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Post-translational signal peptide cleavage controls differential epitope recognition in the QP-rich domain of recombinant Theileria parva PIM
Enhancement of the induction of cytotoxic T-cell responses by immunostimulatory CpG oligodeoxynucleotides has been described in humans and mouse models. The present study attempted to address whether CpG has a similar effect in cattle. Immunisation of cattle with a recombinant form of the polymor...
Graham, S.P.
,
Saya, R.
,
Awino, Elias
,
Ngugi, D.
,
Nyanjui, J.K.
,
Hecker, R.
,
Taracha, E.L.N.
,
Nene, Vishvanath
,
[Immunostimulatory CpG oligodeoxynucleotides enhance the induction of bovine CD4+ cytotoxic T-lymphocyte responses against the polymorphic immunodominant molecule of the protozoan parasite Theileria parva]
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Immunostimulatory CpG oligodeoxynucleotides enhance the induction of bovine CD4+ cytotoxic T-lymphocyte responses against the polymorphic immunodominant molecule of the protozoan parasite Theileria parva
Theileria parva is an intracellular sporozoan parasite that infects and transforms bovine lymphocytes, causing a severe lymphoproliferative disease known as East Coast fever in eastern, central and southern Africa. In this article, Declan McKeever and colleagues summarize the current understandin...
McKeever, Declan J.
,
Taracha, E.L.N.
,
Morrison, W. Ivan
,
Musoke, A.J.
,
Morzaria, S.P.
,
[Protective immune mechanisms against Theileria parva: Evolution of vaccine development strategies]
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Protective immune mechanisms against Theileria parva: Evolution of vaccine development strategies
We describe a highly sensitive, non-radioactive assay for T cell activation, based on the rapid induction of class II MHC expression by constitutively negative bovine endothelial cells, when cultured in the presence of supernatants derived from activated bovine T cells. We demonstrate the effecti...
Ballingall, K.T.
,
Mwangi, D.M.
,
MacHugh, Niall D.
,
Taracha, E.L.N.
,
Totte, P.
,
McKeever, Declan J.
,
[A highly sensitive, non-radioactive assay for T cell activation in cattle: Applications in screening for antigens recognised by CD4+ and CD8+ T cells]
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A highly sensitive, non-radioactive assay for T cell activation in cattle: Applications in screening for antigens recognised by CD4+ and CD8+ T cells