USE OF MULTIVALENT CHIMERIC PEPTIDE-LOADED, MHC/IG MOLECULES TO DETECT, ACTIVATE OR SUPPRESS ANTIGEN-SPECIFIC T CELL-DEPENDENT IMMUNE RESPONSES

To increase the effective affinity of soluble analogs of peptide/MHC molecules for their cognate ligands, divalent peptide/MHC complexes were constructed. Using a recombinant DNA strategy, DNA encoding the MHC class I was ligated to DNA coding for murine Ig heavy chain. MHC/Ig complexes were exploit...

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Hauptverfasser: GRETEN, TIM, PARDOLLEW, O'HERRIN, SEAN, M, SCHNECK, JONATHAN, SLANSKY, JILL
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PARDOLLEW
O'HERRIN, SEAN, M
SCHNECK, JONATHAN
SLANSKY, JILL
description To increase the effective affinity of soluble analogs of peptide/MHC molecules for their cognate ligands, divalent peptide/MHC complexes were constructed. Using a recombinant DNA strategy, DNA encoding the MHC class I was ligated to DNA coding for murine Ig heavy chain. MHC/Ig complexes were exploited to homogeneously load with peptides of interest. The results of flow cytometry demonstrated that the MHC/Ig complexes bound specifically with high affinity to cells bearing their cognate receptors. MHC/Ig complexes are also useful in modulating effector functions of antigen-specific T cells. These MHC/Ig complexes are useful for studying TCR/MHC interactions and lymphocyte tracking and have uses as specific regulators of immune responses. On a élaboré des complexes peptide/CMH divalents pour améliorer l'affinité effective des analogues solubles de molécules du type peptide/CMH vis-à-vis de leurs ligands correspondants. En utilisant une technique à base d'ADN recombiné, on a ligaturé de l'ADN codant le CMH de classe I sur de l'ADN codant la chaîne polypeptidique lourde Ig murine. Les complexes CMH/Ig ont permis de procéder à un chargement homogène avec les peptides visés. Les résultats de la cytométrie de flux ont montré que les complexes CMH/Ig avaient une haute affinité de liaison spécifique avec des cellules comportant leurs récepteurs correspondants. Par ailleurs, les complexes CMH/Ig interviennent utilement dans la modulation des fonctions effectrices des cellules T spécifiques de l'antigène. En outre, lesdits complexes interviennent utilement dans l'étude des interactions du type récepteur des cellules T (TcR)/CMH et dans le repérage des lymphocytes, et ils répondent à différentes utilisations en tant que régulateurs spécifiques des réponses immunes.
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subjects BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
HUMAN NECESSITIES
HYGIENE
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PEPTIDES
PHYSICS
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
SPIRITS
TESTING
VINEGAR
WINE
title USE OF MULTIVALENT CHIMERIC PEPTIDE-LOADED, MHC/IG MOLECULES TO DETECT, ACTIVATE OR SUPPRESS ANTIGEN-SPECIFIC T CELL-DEPENDENT IMMUNE RESPONSES
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