MHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.

It has long been recognized that the absence of expression of products of the major histocompatibility complex (MHC) during early development might allow the fetus to escape recognition by maternal lymphocytes. In addition to the MHC class I heavy chain and beta 2-microglobulin, antigenic peptide is...

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Main Authors: Bikoff, E, Jaffe, L, Ribaudo, R, Otten, G, Germain, R, Robertson, E
Format: Journal article
Language:English
Published: 1991
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author Bikoff, E
Jaffe, L
Ribaudo, R
Otten, G
Germain, R
Robertson, E
author_facet Bikoff, E
Jaffe, L
Ribaudo, R
Otten, G
Germain, R
Robertson, E
author_sort Bikoff, E
collection OXFORD
description It has long been recognized that the absence of expression of products of the major histocompatibility complex (MHC) during early development might allow the fetus to escape recognition by maternal lymphocytes. In addition to the MHC class I heavy chain and beta 2-microglobulin, antigenic peptide is an essential structural component of the class I molecule. Indeed, there is evidence that MHC-linked genes encoding peptide transporter molecules and possibly components of a proteolytic complex are necessary for MHC class I assembly and stability at the cell surface. Here we demonstrate that embryonic cells in general show a defect in MHC class I assembly. Surface expression was rescued in the presence of an appropriate antigenic peptide, or by treatment with interferon. Consistent with this, HAM1 messenger RNA was not constitutively expressed, but was inducible by interferon, and during differentiation in vitro. Thus, tolerance of the fetal allograft may in part be controlled at the level of peptide-dependent MHC class I assembly.
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spelling oxford-uuid:a2f0faaf-d4a3-4a83-a267-432a2f6385e62022-03-27T02:23:23ZMHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a2f0faaf-d4a3-4a83-a267-432a2f6385e6EnglishSymplectic Elements at Oxford1991Bikoff, EJaffe, LRibaudo, ROtten, GGermain, RRobertson, EIt has long been recognized that the absence of expression of products of the major histocompatibility complex (MHC) during early development might allow the fetus to escape recognition by maternal lymphocytes. In addition to the MHC class I heavy chain and beta 2-microglobulin, antigenic peptide is an essential structural component of the class I molecule. Indeed, there is evidence that MHC-linked genes encoding peptide transporter molecules and possibly components of a proteolytic complex are necessary for MHC class I assembly and stability at the cell surface. Here we demonstrate that embryonic cells in general show a defect in MHC class I assembly. Surface expression was rescued in the presence of an appropriate antigenic peptide, or by treatment with interferon. Consistent with this, HAM1 messenger RNA was not constitutively expressed, but was inducible by interferon, and during differentiation in vitro. Thus, tolerance of the fetal allograft may in part be controlled at the level of peptide-dependent MHC class I assembly.
spellingShingle Bikoff, E
Jaffe, L
Ribaudo, R
Otten, G
Germain, R
Robertson, E
MHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.
title MHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.
title_full MHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.
title_fullStr MHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.
title_full_unstemmed MHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.
title_short MHC class I surface expression in embryo-derived cell lines inducible with peptide or interferon.
title_sort mhc class i surface expression in embryo derived cell lines inducible with peptide or interferon
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AT jaffel mhcclassisurfaceexpressioninembryoderivedcelllinesinduciblewithpeptideorinterferon
AT ribaudor mhcclassisurfaceexpressioninembryoderivedcelllinesinduciblewithpeptideorinterferon
AT otteng mhcclassisurfaceexpressioninembryoderivedcelllinesinduciblewithpeptideorinterferon
AT germainr mhcclassisurfaceexpressioninembryoderivedcelllinesinduciblewithpeptideorinterferon
AT robertsone mhcclassisurfaceexpressioninembryoderivedcelllinesinduciblewithpeptideorinterferon