Method of strengthening foreign epitope presentation by mhc class i by inhibiting tap activity
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United States of America Patent
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Issued Date -
May 11, 2006
app pub date -
Oct 1, 2003
filing date -
Oct 1, 2002
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Abandoned
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Abstract
The present invention relates to methods for enhancing exogenous epitope display on an MHC class I molecule through inhibition of TAP activity. Mammalian cell-infecting virus vectors encoding both a TAP inhibitory factor and an epitope-linked-.beta.2m were constructed and introduced into mammalian cells. The present inventors succeeded in displaying on the cell surface in high frequency the MHC class I/peptide complex containing an epitope-linked-.beta.2m expressed from the vector by reducing endogenous MHC class I/peptide complexes by the action of the TAP inhibitory factor. The present invention finds utility in vaccine therapies for infectious diseases, cancers, and the like.
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