Abstract:
:We created and produced a novel self-assembling nanoparticle platform for delivery of peptide epitopes that induces CD8(+) and CD4(+)T cells that are protective against Toxoplasma gondii infection. These self-assembling polypeptide nanoparticles (SAPNs) are composed of linear peptide (LP) monomers which contain two coiled-coil oligomerization domains, the dense granule 7 (GRA720-28 LPQFATAAT) peptide and a universal CD4(+)T cell epitope (derived from PADRE). Purified LPs assemble into nanoparticles with icosahedral symmetry, similar to the capsids of small viruses. These particles were evaluated for their efficacy in eliciting IFN-γ by splenocytes of HLA-B*0702 transgenic mice and for their ability to protect against subsequent T. gondii challenge. This work demonstrates the feasibility of using this platform approach with a CD8(+) epitope that binds HLA-B7 and tests the biological activity of potentially protective peptides restricted by human major histocompatibility complex (HLA) class I molecules in HLA transgenic mice.
journal_name
Vaccinejournal_title
Vaccineauthors
El Bissati K,Zhou Y,Dasgupta D,Cobb D,Dubey JP,Burkhard P,Lanar DE,McLeod Rdoi
10.1016/j.vaccine.2014.03.092subject
Has Abstractpub_date
2014-05-30 00:00:00pages
3243-8issue
26eissn
0264-410Xissn
1873-2518pii
S0264-410X(14)00483-6journal_volume
32pub_type
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