Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever
Nanoparticle vaccines usually prime stronger immune responses than soluble antigens. Within this class of subunit vaccines, the recent development of computationally designed self-assembling two-component protein nanoparticle scaffolds provides a powerful and versatile platform for displaying multip...
| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Frontiers Media
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/127050 |
| _version_ | 1855532177887854592 |
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| author | Lacasta, Anna Kim, H.C. Kepl, E. Gachogo, Rachael Chege, Naomi Ojuok, Rose Muriuki, Charity Mwalimu, Stephen Touboul, G. Stiber, A. Poole, Elizabeth J. Ndiwa, Nicholas N. Fiala, B. King, N.P. Nene, Vishvanath M. |
| author_browse | Chege, Naomi Fiala, B. Gachogo, Rachael Kepl, E. Kim, H.C. King, N.P. Lacasta, Anna Muriuki, Charity Mwalimu, Stephen Ndiwa, Nicholas N. Nene, Vishvanath M. Ojuok, Rose Poole, Elizabeth J. Stiber, A. Touboul, G. |
| author_facet | Lacasta, Anna Kim, H.C. Kepl, E. Gachogo, Rachael Chege, Naomi Ojuok, Rose Muriuki, Charity Mwalimu, Stephen Touboul, G. Stiber, A. Poole, Elizabeth J. Ndiwa, Nicholas N. Fiala, B. King, N.P. Nene, Vishvanath M. |
| author_sort | Lacasta, Anna |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Nanoparticle vaccines usually prime stronger immune responses than soluble antigens. Within this class of subunit vaccines, the recent development of computationally designed self-assembling two-component protein nanoparticle scaffolds provides a powerful and versatile platform for displaying multiple copies of one or more antigens. Here we report the generation of three different nanoparticle immunogens displaying 60 copies of p67C, an 80 amino acid polypeptide from a candidate vaccine antigen of Theileria parva, and their immunogenicity in cattle. p67C is a truncation of p67, the major surface protein of the sporozoite stage of T. parva, an apicomplexan parasite that causes an often-fatal bovine disease called East Coast fever (ECF) in sub-Saharan Africa. Compared to I32-19 and I32-28, we found that I53-50 nanoparticle scaffolds displaying p67C had the best biophysical characteristics. p67C-I53-50 also outperformed the other two nanoparticles in stimulating p67C-specific IgG1 and IgG2 antibodies and CD4+ T-cell responses, as well as sporozoite neutralizing capacity. In experimental cattle vaccine trials, p67C-I53-50 induced significant immunity to ECF, suggesting that the I53-50 scaffold is a promising candidate for developing novel nanoparticle vaccines. To our knowledge this is the first application of computationally designed nanoparticles to the development of livestock vaccines. |
| format | Journal Article |
| id | CGSpace127050 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1270502025-12-08T10:29:22Z Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever Lacasta, Anna Kim, H.C. Kepl, E. Gachogo, Rachael Chege, Naomi Ojuok, Rose Muriuki, Charity Mwalimu, Stephen Touboul, G. Stiber, A. Poole, Elizabeth J. Ndiwa, Nicholas N. Fiala, B. King, N.P. Nene, Vishvanath M. vaccines animal diseases east coast fever Nanoparticle vaccines usually prime stronger immune responses than soluble antigens. Within this class of subunit vaccines, the recent development of computationally designed self-assembling two-component protein nanoparticle scaffolds provides a powerful and versatile platform for displaying multiple copies of one or more antigens. Here we report the generation of three different nanoparticle immunogens displaying 60 copies of p67C, an 80 amino acid polypeptide from a candidate vaccine antigen of Theileria parva, and their immunogenicity in cattle. p67C is a truncation of p67, the major surface protein of the sporozoite stage of T. parva, an apicomplexan parasite that causes an often-fatal bovine disease called East Coast fever (ECF) in sub-Saharan Africa. Compared to I32-19 and I32-28, we found that I53-50 nanoparticle scaffolds displaying p67C had the best biophysical characteristics. p67C-I53-50 also outperformed the other two nanoparticles in stimulating p67C-specific IgG1 and IgG2 antibodies and CD4+ T-cell responses, as well as sporozoite neutralizing capacity. In experimental cattle vaccine trials, p67C-I53-50 induced significant immunity to ECF, suggesting that the I53-50 scaffold is a promising candidate for developing novel nanoparticle vaccines. To our knowledge this is the first application of computationally designed nanoparticles to the development of livestock vaccines. 2023-01-13 2023-01-13T13:49:50Z 2023-01-13T13:49:50Z Journal Article https://hdl.handle.net/10568/127050 en Open Access Frontiers Media Lacasta, A., Kim, H.C., Kepl, E., Gachogo, R., Chege, N., Ojuok, R., Muriuki, C., Mwalimu, S., Touboul, G., Stiber, A., Poole, E.J., Ndiwa, N., Fiala, B., King, N.P. and Nene, V. 2023. Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever. Frontiers in Immunology 13: 1015840. |
| spellingShingle | vaccines animal diseases east coast fever Lacasta, Anna Kim, H.C. Kepl, E. Gachogo, Rachael Chege, Naomi Ojuok, Rose Muriuki, Charity Mwalimu, Stephen Touboul, G. Stiber, A. Poole, Elizabeth J. Ndiwa, Nicholas N. Fiala, B. King, N.P. Nene, Vishvanath M. Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever |
| title | Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever |
| title_full | Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever |
| title_fullStr | Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever |
| title_full_unstemmed | Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever |
| title_short | Design and immunological evaluation of two-component protein nanoparticle vaccines for East Coast fever |
| title_sort | design and immunological evaluation of two component protein nanoparticle vaccines for east coast fever |
| topic | vaccines animal diseases east coast fever |
| url | https://hdl.handle.net/10568/127050 |
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