East Coast fever (ECF) caused by Theileria parva kills cattle in East, Central and Southern Africa leading to significant economic losses. Vaccination is used as a control strategy against ECF and is presently dependent on deliberate infection with live sporozoites and simultaneous treatment with...
Nyagwange, James
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Nene, Vishvanath
,
Mwalimu, Stephen M.
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Henson, Sonal P.
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Steinaa, Lucilla
,
Nzau, Benjamin M.
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Tijhaar, Edwin
,
Pelle, Roger
,
[Antibodies to in silico selected GPI-anchored Theileria parva proteins neutralize sporozoite infection in vitro]
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Antibodies to in silico selected GPI-anchored Theileria parva proteins neutralize sporozoite infection in vitro
Background
The tick-borne protozoan parasite Theileria parva causes a usually fatal cattle disease known as East Coast fever in sub-Saharan Africa, with devastating consequences for poor small-holder farmers. Immunity to T. parva, believed to be mediated by a cytotoxic T lymphocyte (CTL) response...
Steinaa, Lucilla
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Svitek, Nichiolas
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Awino, Elias
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Njoroge, Thomas
,
Saya, Rosemary M.
,
Toye, Philip G.
,
[Immunization with one Theileria parva strain results in similar level of CTL strain-specificity and protection compared to immunization with the three-component Muguga cocktail in MHC-matched animals]
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Immunization with one Theileria parva strain results in similar level of CTL strain-specificity and protection compared to immunization with the three-component Muguga cocktail in MHC-matched animals
Objectives:
The objective of this study was to assess whether cytotoxic T cells (CTL) generated by the live vaccine, known as “ITM Muguga cocktail”, which is used for the cattle disease East Cost fever (ECF) in Sub-Saharan Africa, showed a broad reactivity against many different strains of the ca...
Steinaa, Lucilla
,
Svitek, Nicholas
,
Awino, Elias
,
Saya, Rosemary
,
Toye, Philip G.
,
[Cytotoxic T lymphocytes from cattle sharing the same MHC class I haplotype and immunized with live Theileria parva sporozoites differ in antigenic specificity]
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Cytotoxic T lymphocytes from cattle sharing the same MHC class I haplotype and immunized with live Theileria parva sporozoites differ in antigenic specificity
Tremendous progress has been made over the last ten years on East Coast fever (ECF) research. Publication of a reference genome sequence of Theileria parva, the causative agent of ECF, has led to a more thorough characterization of the genotypic and antigenic diversity of the pathogen. It also fa...
Nene, Vishvanath
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Kiara, Henry K.
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Lacasta, Anna
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Pelle, Roger
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Svitek, Nicholas
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Steinaa, Lucilla
,
[The biology of Theileria parva and control of East Coast fever—Current status and future trends]
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The biology of Theileria parva and control of East Coast fever—Current status and future trends
We have recently shown that the BoLA-A18 variant haplotype (BoLA-6*01302) is more prevalent than the BoLA-A18 haplotype (BoLA-6*01301) in a sample of Holstein/Friesian cattle in Kenya. These MHC class I allelic variants differ by a single amino acid polymorphism (Glu97 to Leu97) in the peptide-bi...
Svitek, Nicholas
,
Awino, Elias
,
Nene, Vishvanath
,
Steinaa, Lucilla
,
[BoLA-6*01301 and BoLA-6*01302, two allelic variants of the A18 haplotype, present the same epitope from the Tp1 antigen of Theileria parva]
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BoLA-6*01301 and BoLA-6*01302, two allelic variants of the A18 haplotype, present the same epitope from the Tp1 antigen of Theileria parva
The epidermal growth factor receptor (EGFR) is frequently dysregulated in human malignancies and a validated target for cancer therapy. Two monoclonal anti-EGFR antibodies (cetuximab and panitumumab) are approved for clinical use. However, the percentage of patients responding to treatment is low...
The eradication of smallpox (variola) and the subsequent cessation of routine vaccination have left modern society vulnerable to bioterrorism employing this devastating contagious disease. The existing, licensed vaccines based on live vaccinia virus (VACV) are contraindicated for a substantial nu...
Lantto, J.
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Hansen, M.H.
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Rasmussen, S.K.
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Steinaa, Lucilla
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Poulsen, T.R.
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Duggan, J.
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Dennis, M.
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Naylor, I.
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Easterbrook, L.
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Bregenholt, S.
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Haurum, J.
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Jensen, A.
,
[Capturing the natural diversity of the human antibody response against vaccinia virus]
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Capturing the natural diversity of the human antibody response against vaccinia virus
We have developed a polymerase chain reaction-sequence-specific primers-restriction fragment length polymorphism (PCR-SSP-RFLP) method to rapidly differentiate between the A18 and A18 variant (v) BoLA haplotypes and between A14 and A15/A15v BoLA haplotypes in Holstein/Friesian cattle. We used pub...
Svitek, Nicholas
,
Nzau, Benjamin M.
,
Steinaa, Lucilla
,
Nene, Vishvanath
,
[A method to discriminate between closely related bovine major histocompatibility complex class I alleles by combining established PCR-SSP assays with RFLPs]
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A method to discriminate between closely related bovine major histocompatibility complex class I alleles by combining established PCR-SSP assays with RFLPs
Theileria parva is a protozoan parasite that causes the disease East Coast fever in cattle which results in major economic losses in Eastern, Central and Southern Africa. Efforts to generate vaccines involve measurements of cytotoxic activity since CD8 cells are believed to be responsible for pro...
Wendoh, J.
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Waihenya, R.
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Saya, R.
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Awino, Elias
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Nene, Vishvanath
,
Steinaa, Lucilla
,
[Perforin expression in Theileria parva specific Cytotoxic T Cells correlates with Cytotoxicity]
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Perforin expression in Theileria parva specific Cytotoxic T Cells correlates with Cytotoxicity
The protozoan parasite Theileria parva causes a usually fatal disease in cattle, known as East Coast fever. Cattle can be vaccinated by injecting live parasites simultaneously with long acting oxytetracycline (the Infection and Treatment Method, ITM). The immunity induced by ITM is believed to be...
Steinaa, Lucilla
,
Saya, R.
,
Awino, Elias
,
Toye, Philip G.
,
[Cytotoxic T lymphocytes from cattle immunized against Theileria parva exhibit pronounced cross-reactivity among different strain-specific epitopes of the Tp1 antigen]
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Cytotoxic T lymphocytes from cattle immunized against Theileria parva exhibit pronounced cross-reactivity among different strain-specific epitopes of the Tp1 antigen