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Sileghem, M.R.Saya, R.Ellis, J.Flynn, J.N.Peel, J.E.Williams, D.J.L.[Detection and neutralization of bovine tumor necrosis factor by a monoclonal antibody]Detection and neutralization of bovine tumor necrosis factor by a monoclonal antibody

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, RogerSaya, R.Awino, EliasNyanjui, 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]Evaluation of the recognition of Theileria parva vaccine candidate antigens by cytotoxic T lymphocytes from Zebu cattle

The mechanisms whereby trypanotolerant N'Dama cattle control infection with Trypanosoma congolense are unknown. Previous studies have suggested that the monocytes of N'Dama cattle are more highly activated during infection than those of trypanosus ceptible Boan cattle. However, we have recently r...


Taylor, K.Mertens, B.Lutje, V.Saya, R.[Trypanosoma congolense infection of trypanotolerant N'Dama (Bos taurus) cattle is associated with decreased secretion of nitric oxide by interferon-gamma-activated monocytes and increased transcription of interleukin-10]Trypanosoma congolense infection of trypanotolerant N'Dama (Bos taurus) cattle is associated with decreased secretion of nitric oxide by interferon-gamma-activated monocytes and increased transcription of interleukin-10

The membrane-associated form of the variable surface glycoprotein (mfVSG) from African trypanosomes is a potent macrophage activator capable of inducing production of tumor necrosis factor z (TNFalfa) in both bovine and murine models. Using a bovine model. we have re-investigated the hypothesis t...


Sileghem, M.R.Saya, R.Grab, D.J.Naessens, Jan[An accessory role for the diacylglycerol moiety of variable surface glycoprotein of African trypanosomes in the simulation of bovine monocytes]An accessory role for the diacylglycerol moiety of variable surface glycoprotein of African trypanosomes in the simulation of bovine monocytes

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, EliasNgugi, 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]Immunostimulatory CpG oligodeoxynucleotides enhance the induction of bovine CD4+ cytotoxic T-lymphocyte responses against the polymorphic immunodominant molecule of the protozoan parasite Theileria parva
Sileghem, M.R.Flynn, J.N.Saya, R.Williams, D.J.L.[Secretion of co-stimulatory cytokines by monocytes and macrophages during infection with Trypanosoma (Nannomonas) congolense in susceptible and tolerant cattle]Secretion of co-stimulatory cytokines by monocytes and macrophages during infection with Trypanosoma (Nannomonas) congolense in susceptible and tolerant cattle

Theileria parva is a protozoan parasite that causes the disease East Coast fever in cattle which results in major economic losses in Eastern, Central and Southern Africa. Efforts to generate vaccines involve measurements of cytotoxic activity since CD8 cells are believed to be responsible for pro...


Wendoh, J.Waihenya, R.Saya, R.Awino, EliasNene, VishvanathSteinaa, Lucilla[Perforin expression in Theileria parva specific Cytotoxic T Cells correlates with Cytotoxicity]Perforin expression in Theileria parva specific Cytotoxic T Cells correlates with Cytotoxicity

The protozoan parasite Theileria parva causes a usually fatal disease in cattle, known as East Coast fever. Cattle can be vaccinated by injecting live parasites simultaneously with long acting oxytetracycline (the Infection and Treatment Method, ITM). The immunity induced by ITM is believed to be...


Steinaa, LucillaSaya, R.Awino, EliasToye, Philip G.[Cytotoxic T lymphocytes from cattle immunized against Theileria parva exhibit pronounced cross-reactivity among different strain-specific epitopes of the Tp1 antigen]Cytotoxic T lymphocytes from cattle immunized against Theileria parva exhibit pronounced cross-reactivity among different strain-specific epitopes of the Tp1 antigen

Peptide-major histocompatibility complex (p-MHC) class I tetramer complexes have facilitated the early detection and functional characterisation of epitope specific CD8+ cytotoxic T lymphocytes (CTL). Here, we report on the generation of seven recombinant bovine leukocyte antigens (BoLA) and reco...


Svitek, NicholasHansen, A.M.Steinaa, LucillaSaya, R.Awino, EliasNielsen, MortenBuus, SorenNene, Vishvanath[Use of “one-pot, mix-and-read” peptide-MHC class I tetramers and predictive algorithms to improve detection of cytotoxic T lymphocyte responses in cattle]Use of “one-pot, mix-and-read” peptide-MHC class I tetramers and predictive algorithms to improve detection of cytotoxic T lymphocyte responses in cattle

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