| Literature DB >> 8297900 |
N P Restifo1, Y Kawakami, F Marincola, P Shamamian, A Taggarse, F Esquivel, S A Rosenberg.
Abstract
In this article, we explore the hypothesis that tumor cells can escape recognition by CD8+ T cells via deficiencies in antigen processing and presentation. Aspects of the molecular and cellular biology of major histocompatibility complex class I are reviewed. Evidence for histology-specific molecular mechanisms in the antigen-processing and -presentation deficiencies observed in some human and murine tumors is presented. Mechanisms identified include down-regulation of antigen processing, loss of functional beta 2-microglobulin, and deletion of specific alpha-chain alleles. Finally, we discuss studies using an antigen-presentation-deficient mouse tumor as a model for the immunogenetherapy of an antigen-presentation deficiency.Entities:
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Year: 1993 PMID: 8297900 PMCID: PMC2555986 DOI: 10.1097/00002371-199310000-00004
Source DB: PubMed Journal: J Immunother Emphasis Tumor Immunol ISSN: 1067-5582