African animal trypanosomiasis (AAT) caused by tsetse fly-transmitted protozoa of the genus Trypanosoma is a major constraint on livestock and agricultural production in Africa and is among the top ten global cattle diseases impacting on the poor. Here we show that a functional genomics approach ...
O'Gorman, G.M.
,
Park, S. de
,
Hill, E.W.
,
Meade, K.G.
,
Coussens, P.M.
,
Agaba, Morris
,
Naessens, Jan
,
Kemp, Stephen J.
,
MacHugh, D.E.
,
[Transcriptional profiling of cattle infected with Trypanosoma congolense highlights gene expression signatures underlying trypanotolerance and trypanosusceptibility]
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Transcriptional profiling of cattle infected with Trypanosoma congolense highlights gene expression signatures underlying trypanotolerance and trypanosusceptibility
West African N'Dama cattle have developed a genetic capacity to survive, reproduce and remain productive under trypanosomosis risk. The cellular and molecular bases of this so-called trypanotolerance are not known, but the trait is manifested by the N'Dama's greater capacity to control parasitae...
Naessens, Jan
,
Leak, S.G.A.
,
Kennedy, D.J.
,
Kemp, Stephen J.
,
Teale, A.J.
,
[Responses of bovine chimaeras combining trypanosomosis resistant and susceptible genotypes to experimental infection with Trypanosoma congolense]
,
Responses of bovine chimaeras combining trypanosomosis resistant and susceptible genotypes to experimental infection with Trypanosoma congolense
The first visible response in livestock to the bite of a trypanosome-infected tsetse fly is the formation of a localized skin reaction, also known as a chancre. This is an inflammatory response in the skin associated with swelling and an influx of cells. It is thought to be associated with an a...
Naessens, Jan
,
Mwangi, D.M.
,
Buza, J.
,
Moloo, S.K.
,
[Local skin reaction (chancre) induced following inoculation of metacyclic trypanosomes in cattle by tsetse flies is dependent on CD4 T lymphocytes]
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Local skin reaction (chancre) induced following inoculation of metacyclic trypanosomes in cattle by tsetse flies is dependent on CD4 T lymphocytes
Development of anaemia in inflammatory diseases is cytokine-mediated. Specifically, the levels of tumour necrosis factor-α (TNF-α), produced by activated macrophages, are correlated with severity of disease and anaemia in infections and chronic disease. In African trypanosomiasis, anaemia develop...
Naessens, Jan
,
Kitani, H.
,
Nakamura, Y.
,
Yagi, Y.
,
Sekikawa, K.
,
Iraqi, F.A.
,
[TNF-a mediates the development of anaemia in a murine Trypanosoma brucei rhodesiense infection, but not the anaemia associated with a murine Trypanosoma congolense infection]
,
TNF-a mediates the development of anaemia in a murine Trypanosoma brucei rhodesiense infection, but not the anaemia associated with a murine Trypanosoma congolense infection
Development of anaemia in inflammatory diseases is cytokine-mediated. Specifically, the levels of tumour necrosis factor-alpha (TNF-alpha), produced by activated macrophages, are correlated with severity of disease and anaemia in infections and chronic disease. In African trypanosomiasis, anaemia...
Naessens, Jan
,
Kitani, H.
,
Nakamura, Y.
,
Yagi, Y.
,
Sekikawa, K.
,
Iraqi, F.A.
,
[TNF-alpha mediates the development of anaemia in a murine Trypanosoma brucei rhodesiense infection, but not the anaemia associated with a murine Trypanosoma congolense infection]
,
TNF-alpha mediates the development of anaemia in a murine Trypanosoma brucei rhodesiense infection, but not the anaemia associated with a murine Trypanosoma congolense infection
Natural resistance to African trypanosomiasis in certain Bos taurus cattle in West Africa, called trypanotolerance, may hold solutions for control of this economically crippling disease. Comparison of immune responses between trypanotolerant and trypanosusceptible cattle have shown some differen...
Naessens, Jan
,
Teale, A.J.
,
Sileghem, M.R.
,
[Identification of mechanisms of natural resistance to African trypanosomiasis in cattle]
,
Identification of mechanisms of natural resistance to African trypanosomiasis in cattle
West African N'Dama cattle have developed a genetic capacity to survive, reproduce and remain productive under trypanosomosis risk. The cellular and molecular bases of this so-called trypanotolerance are not known, but the trait is manifested by the N'Dama's greater capacity to control parasitaem...
Naessens, Jan
,
Leak, S.G.A.
,
Kennedy, D.J.
,
Kemp, Stephen J.
,
Teale, A.J.
,
[Responses of bovine chimaeras combining trypanosomiasis resistant and susceptible genotypes to experimental infection with Trypanosoma congolense]
,
Responses of bovine chimaeras combining trypanosomiasis resistant and susceptible genotypes to experimental infection with Trypanosoma congolense
Murine models have suggested that CD8 T cells might play a major parasite-promoting role in African trypanosomiasis. To assess the role of these cells in a natural host environment, we have depleted CD8 cells from Boran cattle in vivo and subsequently infected these animals with Trypanosoma congo...
Sileghem, M.R.
,
Naessens, Jan
,
[Are CD8 T cells involved in control of African trypanosomiasis in a natural host environment?]
,
Are CD8 T cells involved in control of African trypanosomiasis in a natural host environment?
Natural resistance to African trypanosomiasis in certain Bos taurus cattle in West Africa, called trypanotolerance, may hold solutions for control of this economically crippling disease. Comparison of immune responses between trypanotolerant and trypanosusceptible cattle have shown some differenc...
Naessens, Jan
,
Teale, A.J.
,
Sileghem, M.R.
,
[Identification of mechanisms of natural resistance to African trypanosomiasis in cattle]
,
Identification of mechanisms of natural resistance to African trypanosomiasis in cattle
It is known that different breeds of cattle display differential susceptibilities to Trypanosome congolense infections, and that N'Dama cattle remain more productive after infection than Boran cattle which are more susceptible to T. congolense. Macrophages from both breeds were cultured in vitro ...