Differential Immune Response against Recombinant Leishmania donovani Peroxidoxin 1 and Peroxidoxin 2 Proteins in BALB/c Mice

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dc.contributor.authorDaifalla, Nada S.
dc.contributor.authorBayih, Abebe Genetu
dc.contributor.authorGedamu, Lashitew
dc.date.accessioned2018-09-27T11:28:51Z
dc.date.available2018-09-27T11:28:51Z
dc.date.issued2015-08-25
dc.date.updated2018-09-27T11:28:50Z
dc.description.abstractWe assessed the immune response against recombinant proteins of two related, albeit functionally different, peroxidoxins from Leishmania donovani: peroxidoxin 1 (LdPxn1) and peroxidoxin 2 (LdPxn2) in BALB/c mice. We also evaluated the effect of coadministration of TLR agonists (CpG ODN and GLA-SE) on the antigen-specific immune response. Immunization with recombinant LdPxn1 alone induced a predominantly Th2 type immune response that is associated with the production of high level of IgG1 and no IgG2a isotype while rLdPxn2 resulted in a mixed Th1/Th2 response characterized by the production of antigen-specific IgG2a in addition to IgG1 isotype. Antigen-stimulated spleen cells from mice that were immunized with rLdPxn1 produced low level of IL-10 and IL-4 and no IFN-γ, whereas cells from mice immunized with rLdPxn2 secreted high level of IFN-γ, low IL-4, and no IL-10. Coadministration of CpG ODN or GLA-SE with rLdPxn1 skewed the immune response towards a Th 1 type as indicated by robust production of IgG2a isotype. Furthermore, the presence of TLR agonists together with rLdPxn1 antigen enhanced the production of IFN-γ and to a lesser extent of IL-10. TLR agonists also enhanced a more polarized Th 1 type immune response against rLdPxn2.
dc.description.versionPeer Reviewed
dc.identifier.citationNada S. Daifalla, Abebe Genetu Bayih, and Lashitew Gedamu, “Differential Immune Response against Recombinant Leishmania donovani Peroxidoxin 1 and Peroxidoxin 2 Proteins in BALB/c Mice,” Journal of Immunology Research, vol. 2015, Article ID 348401, 11 pages, 2015. doi:10.1155/2015/348401
dc.identifier.doihttps://doi.org/10.1155/2015/348401
dc.identifier.urihttp://hdl.handle.net/1880/108162
dc.language.rfc3066en
dc.rights.holderCopyright © 2015 Nada S. Daifalla et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.titleDifferential Immune Response against Recombinant Leishmania donovani Peroxidoxin 1 and Peroxidoxin 2 Proteins in BALB/c Mice
dc.typeJournal Article
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