Cattle were successfully immunized against heartwater with a lysate of Cowdria ruminantium formulated in Freund's adjuvant. Vaccinated animals proved fully resistant to virulent challenge 3 and 10 months after vaccination. For the first time a helper T lymphocyte response to Cowdria antigens was ...
Totte, P.
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McKeever, Declan J.
,
Martínez, D.
,
Bensaid, A.
,
[Analysis of T-cell responses in cattle immunized against heartwater by vaccination with killed elementary bodies of Cowdria ruminantium]
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Analysis of T-cell responses in cattle immunized against heartwater by vaccination with killed elementary bodies of Cowdria ruminantium
McKeever, Declan J.
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MacHugh, Niall D.
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Goddeeris, B.M.
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Awino, Elias
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Morrison, W. Ivan
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[Bovine afferent lymph veiled cells differ from blood monocytes in phenotype and accessory function]
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Bovine afferent lymph veiled cells differ from blood monocytes in phenotype and accessory function
MacHugh, Niall D.
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Awino, Elias
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McKeever, Declan J.
,
[A monoclonal antibody specific for bovine CD45RO differentiates memory from naive CD4 positive bovine T-cells]
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A monoclonal antibody specific for bovine CD45RO differentiates memory from naive CD4 positive bovine T-cells
Previous analysis of the second exon sequences derived from genomic DQA3 genes of the MHC in cattle identified 2 distinct families, DQA3*01 and DQA3*02. In this paper, the nucleotide and predicted amino acid sequences of the entire coding region of 3 transcribed DQA3 genes representing each of th...
Ballingall, K.T.
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Marasa, B.S.
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Luyai, A.
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McKeever, Declan J.
,
[Identification of diverse BoLA DQA3 genes consistent with non-allelic sequences]
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Identification of diverse BoLA DQA3 genes consistent with non-allelic sequences
The Development of a recombinant Theileria parva vaccine is discussed under the following headings: mechanisms of protection against ECF [East Coast fever]; cloning and expression of p67; immunization and challenge of cattle; interpretation of immunization and challenge data.
Musoke, A.J.
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McKeever, Declan J.
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Morzaria, S.P.
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Nkonge, C.
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Nene, Vishvanath
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[A recombinant vaccine for Theileria parva]
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A recombinant vaccine for Theileria parva
The response of peripheral blood mononuclear cells (PBMC) collected from cattle immunized with killed C. ruminantium to MAP1, MAP1-B, MAP2 and to a lysate of Cowdria was characterized in vitro. CD4+ T lymphocytes responded strongly to Cowdria lysates while B cells and gamma delta T cells prolifer...
Totte, P.
,
McKeever, Declan J.
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Jongejan, F.
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Barbet, A.
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Mahan, S.M.
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Mwangi, D.
,
Bensaid, A.
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[Analysis of cellular responses to native and recombinant proteins of Cowdria ruminantium]
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Analysis of cellular responses to native and recombinant proteins of Cowdria ruminantium
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.
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McKeever, Declan J.
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Nyanjui, J.K.
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Barbet, A.F.
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Mahan, S.M.
,
[Major antigenic proteins 1 and 2 of Cowdria ruminantium are targets for T-lymphocyte responses of immune cattle]
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Major antigenic proteins 1 and 2 of Cowdria ruminantium are targets for T-lymphocyte responses of immune cattle
This paper determines whether contact between parasite-specific CD4+ T cells and CD8+ T cells is an essential requirement for helper function, additional experiments were performed using two-chamber culture plates incorporating semi-porous membranes. TpM were co-cultured with naive or immune CD8 ...
Taracha, E.L.N.
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McKeever, Declan J.
,
[Inductive requirements of Theileria parva-specific cytotoxic T lymphocytes]
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Inductive requirements of Theileria parva-specific cytotoxic T lymphocytes
The membrane-associated enzyme l-α-glycerol-3-phosphate oxidase (GlpO) of Mycoplasma mycoides subs. mycoides (Mmm), the causal agent of contagious bovine pleuropneumonia (CBPP) has been identified as a virulence factor responsible for the release of toxic by-products such as H2O2 that mediate hos...
Mulongo, M.M.
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Frey, J.
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Smith, K.
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Schnier, C.
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Wesonga, H.O.
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Naessens, Jan
,
McKeever, Declan J.
,
[Cattle immunized against the pathogenic l-α-glycerol-3-phosphate oxidase of Mycoplasma mycoides subs. mycoides in cattle fail to generate neutralizing antibodies and succumb to disease on challenge]
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Cattle immunized against the pathogenic l-α-glycerol-3-phosphate oxidase of Mycoplasma mycoides subs. mycoides in cattle fail to generate neutralizing antibodies and succumb to disease on challenge