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.
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Mertens, B.
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Lutje, V.
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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]
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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
African trypanosomes are important pathogens of both humans and livestock. We investigated the association of cytokine responses with disease susceptibility in Trypanosoma congolense-infected cattle. Changes in interleukin (IL)-1 beta, IL-2, IL-4, IL-5, IL-6, IL-12 p40, tumor necrosis factor-alph...
Mertens, B.
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Taylor, K.
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Muriuki, C.
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Rocchi, M.
,
[Cytokine mRNA profiles in trypanotolerant and trypanosusceptible cattle infected with the protozoan parasite trypanosoma congolense: Protective role for interleukin-4]
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Cytokine mRNA profiles in trypanotolerant and trypanosusceptible cattle infected with the protozoan parasite trypanosoma congolense: Protective role for interleukin-4
The cDNA coding for the soluble form of bovine stem cell factor (boSCF-Ala-105) was cloned and recombinant protein was produced in bacteria as a histidine tagged-protein. The protein was purified from the inclusion bodies in one step by metal chelation chromatography under denaturing conditions. ...
Mertens, B.
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Muriuki, C.
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Muiya, P.
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Andrianarivo, A.
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Mwangi, S.
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Logan-Henfrey, L.L.
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[Bovine stem cell factor: Production of a biologically active protein and mRNA analysis in cattle infected with Trypanosoma congolense]
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Bovine stem cell factor: Production of a biologically active protein and mRNA analysis in cattle infected with Trypanosoma congolense
Trypanosomosis is the most economically important disease constraint to livestock productivity in sub-Saharan Africa and has significant negative impact in other parts of the world. Livestock are an integral component of farming systems and thus contribute significantly to food and economic secur...
Taylor, K.A.
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Mertens, B.
,
[Immune responses of cattle to African trypanosomes: Protective or pathogenic?]
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Immune responses of cattle to African trypanosomes: Protective or pathogenic?
Infection with African trypanosomes causes the diseases sleeping sickness in humans and nagana in cattle in sub-Saharan Africa. Suppression of cellular immune responses is a feature of trypanosomiasis in bovine, human, and murine hosts. Some aspects of immunosuppression in the murine model are me...
Taylor, K.
,
Lutje, V.
,
Mertens, B.
,
[Nitric Oxide synthesis is depressed in Bos indicus cattle infected with Trypanosoma congolense and Trypanosoma vivax and does not mediate T-cell suppression]
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Nitric Oxide synthesis is depressed in Bos indicus cattle infected with Trypanosoma congolense and Trypanosoma vivax and does not mediate T-cell suppression
T-cell-mediated immune responses to defined antigens of Trypanosoma congolense were measured in cattle undergoing primary infection. The antigens used were the variable surface glycoprotein and two invariant antigens, a 33-kDa cysteine protease (congopain) and a recombinant form of a 69-kDa heat-...
Lutje, V.
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Mertens, B.
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Boulange, A.F.
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Williams, D.J.L.
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Authié, E.
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[Trypanosoma congolense: Proliferative responses and interleukin production in lymph node cells of infected cattle]
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Trypanosoma congolense: Proliferative responses and interleukin production in lymph node cells of infected cattle