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]
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Responses of bovine chimaeras combining trypanosomosis resistant and susceptible genotypes to experimental infection with Trypanosoma congolense
C57BL/6 mice deficient in one or two copies of the gene for tumor necrosis factor alpha (TNF-alpha) were more susceptible to Trypanosoma congolense infection than their resistant, wild-type counterparts. The number of TNF-alpha genes was correlated with the capacity to control parasitaemia and ...
Naessens, Jan
,
Kitani, H.
,
Momotani, E.
,
Sekikawa, K.
,
Nthale, J.M.
,
Iraqi, F.A.
,
[Susceptibility of TNF-alpha-deficient mice to Trypanosoma congolense is not due to a defective antibody response]
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Susceptibility of TNF-alpha-deficient mice to Trypanosoma congolense is not due to a defective antibody response
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]
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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
Naessens, Jan
,
Grab, D.J.
,
Sileghem, M.R.
,
[Identifying the mechanisms of trypanotolerance in cattle]
,
Identifying the mechanisms of trypanotolerance in cattle
Gene-knockout mice have been extensively used in the study of several malaria-induced pathologies. Some investigators believe that the deficient, infected mice mimic disease aspects produced in the absence of the target gene, but others believe that the deficient mice models mainly explain the ef...
Hernández Valladares, M.
,
Naessens, Jan
,
Iraqi, F.A.
,
[Gene-knockout mice in malaria research: Useful or misleading?]
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Gene-knockout mice in malaria research: Useful or misleading?
Murine models have proved to be excellent tools in the support of studies of the human genetic bases of malaria resistance and have enabled the mapping of 12 resistance loci, eight of them controlling parasitic levels and four controlling cerebral malaria. Further studies using this method have i...
Hernández Valladares, M.
,
Naessens, Jan
,
Iraqi, F.A.
,
[Genetic resistance to malaria in mouse models]
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Genetic resistance to malaria in mouse models
It has been reported that some breeds of cattle such as the N'Dama mount a more effective antibody response to the variable surface glycoprotein coat of trypanosomes and that this may contribute to their ability to control the infection. Thus we have investigated antibody responses to surface exp...
Williams, D.J.L.
,
Taylor, K.
,
Newson, J.
,
Gichuki, B.
,
Naessens, Jan
,
[The role of anti-variable surface glycoprotein antibody responses in bovine trypanotolerance]
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The role of anti-variable surface glycoprotein antibody responses in bovine trypanotolerance
A flow cytometric method using anti-parasite antibodies was developed to measure binding of theileria parva sporozoites to the target bovine lymphocyte membrane. Parasite-host cell interactions could be inhibited by monoclonal antibodies to bovine MHC class I and partially by one of two antibodie...
Syfrig, J.
,
Wells, C.
,
Daubenberger, C.A.
,
Musoke, A.J.
,
Naessens, Jan
,
[Proteolytic cleavage of surface proteins enhances susceptibility of lymphocytes to invasion by Theileria parva sporozoites]
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Proteolytic cleavage of surface proteins enhances susceptibility of lymphocytes to invasion by Theileria parva sporozoites
Iraqi, F.A.
,
Hernández Valladares, M.
,
Ogugo, M.
,
Njoroge, T.
,
Nthale, J.
,
King, R.
,
Naessens, Jan
,
Gibson, P.J.
,
Musoke, A.J.
,
Ole-MoiYoi, O.K.
,
[Fine mapping of quantitative trait loci resistance to malaria using advanced intercross lines of mice]
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Fine mapping of quantitative trait loci resistance to malaria using advanced intercross lines of mice