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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Protein transfer of preformed MHC-peptide complexes sensitizes target cells to T cell cytolysis.

Recombinant GPI-anchored HLA-A2.1 (HLA-A2.1-GPI/beta 2m) was used as a protein transfer vehicle to deliver a hepatitis B virus antigenic peptide to the surfaces of cytotoxic T cell targets. Empty HLA-A2.1-GPI/beta 2m was first produced in D. melanogaster cotransfectants and immunoaffinity purified. Cell coating with HLA-A2.1-GPI/beta 2m was shown to occur rapidly, and to be protein concentration dependent. Protein-transferred HLA-A2.1-GPI/beta 2m effectively presented a hepatitis B virus peptide to peptide-specific HLA-A2.1-restricted T cell clones in cytotoxicity assays. Protein transfer of functional GPI-modified class I MHC-antigenic peptide complexes represents a novel strategy for delivering functional antigenic complexes to cell surfaces that bypasses limitations of gene transfer and permits control of antigenic peptide densities at cell surfaces.[1]

References

  1. Protein transfer of preformed MHC-peptide complexes sensitizes target cells to T cell cytolysis. Huang, J.H., Getty, R.R., Chisari, F.V., Fowler, P., Greenspan, N.S., Tykocinski, M.L. Immunity (1994) [Pubmed]
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