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The protozoan parasite Theileria parva infects and transforms bovine lymphocytes, giving rise to a fatal lympho-proliferative condition known as East Coast fever. Although immune cattle mount strong cytolytic T. lymphocyte responses to the parasite, naive animals appear unable to respond and deve...


McKeever, Declan J.Nyanjui, J.K.Ballingall, K.T.[In vitro infection with Theileria parva is associated with IL10 expression in all bovine lymphocyte lineages]In vitro infection with Theileria parva is associated with IL10 expression in all bovine lymphocyte lineages

There is growing evidence that immunity of cattle to Cowdria ruminantium infection is mediated by T lymphocytes. C. ruminantium antigens that stimulate these responses are therefore of considerable importance to the development of a sub-unit vaccine against the disease. We have examined T cell re...


Mwangi, D.M.McKeever, Declan J.Nyanjui, J.K.Barbet, A.F.Mahan, S.M.[Immunisation of cattle against heartwater by infection with Cowdria ruminantium elicits T lymphocytes that recognise major antigenic proteins 1 and 2 of the agent]Immunisation of cattle against heartwater by infection with Cowdria ruminantium elicits T lymphocytes that recognise major antigenic proteins 1 and 2 of the agent

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

Peripheral blood mononuclear cells (PBMC) from immune cattle proliferate in the presence of autologous Cowdria ruminantium-infected endothelial cells and monocytes. Endothelial cells required treatment with T-cell growth factors to induce class II major histocompatibility complex expression prior...


Mwangi, D.M.Mahan, S.M.Nyanjui, J.K.Taracha, E.L.N.McKeever, Declan J.[Immunization of cattle by infection with Cowdria ruminantium elicits T lymphocytes that recognize autologous, infected endothelial cells and monocytes]Immunization of cattle by infection with Cowdria ruminantium elicits T lymphocytes that recognize autologous, infected endothelial cells and monocytes
Mwangi, D.M.Graham, S.P.Pelle, RogerHonda, Y.Tonukari, N.J.Yamage, I.M.Glew, E.J.Villiers, Etienne P. deShah, TushaarBishop, Richard P.Abuya, E.Awino, EliasGachanja, J.Luyai, A.E.Mbwika, F.Muthiani, A.M.Ndegwa, D.M.Njahira, Moses N.Nyanjui, J.K.Onono, F.O.Osaso, J.Saya, R.M.Wildmann, C.Fraser, C.M.Maudlin, I.Gardner, M.J.Morzaria, S.P.Loosmore, S.Gilbert, S.C.Audonnet, J.C.Bruggen, P. van derNene, VishvanathTaracha, E.L.N.[Exploiting host immunity and parasite genomics to develop a robust sub-unit vaccine against East Coast fever in cattle - Where are we?]Exploiting host immunity and parasite genomics to develop a robust sub-unit vaccine against East Coast fever in cattle - Where are we?

Heartwater (cowdriosis) is an infectious disease of domestic ruminants in Africa and the Carribean and is caused by a tick-borne intracellular rickettsial agent, Cowdria ruminantium. There is growing evidence that immunity of cattle to the disease is medicated by T. lymphocytes. Antigens that sti...


Mwangi, D.M.McKeever, Declan J.Nyanjui, J.K.Barbet, A.F.Mahan, S.M.[Major antigenic proteins 1 and 2 of Cowdria ruminantium are targets for T-lymphocyte responses of immune cattle]Major antigenic proteins 1 and 2 of Cowdria ruminantium are targets for T-lymphocyte responses of immune cattle

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