4-1BB-mediated expansion affords superior detection of in vivo primed effector memory CD8+ T cells from melanoma sentinel lymph nodes
Copyright © 2010 Elsevier Inc. All rights reserved.
Publié dans: | Clinical immunology (Orlando, Fla.). - 1999. - 137(2010), 2 vom: 02. Nov., Seite 221-33 |
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Auteur principal: | |
Autres auteurs: | , , , , , , , , , , , |
Format: | Article en ligne |
Langue: | English |
Publié: |
2010
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Accès à la collection: | Clinical immunology (Orlando, Fla.) |
Sujets: | Journal Article 4-1BB Ligand Antibodies, Monoclonal Antigens, CD Epitopes, T-Lymphocyte Interleukins Lysosomal-Associated Membrane Protein 1 Melanoma-Specific Antigens Oligodeoxyribonucleotides ProMune plus... |
Résumé: | Copyright © 2010 Elsevier Inc. All rights reserved. We have been studying the re-activation of tumor-associated antigen (TAA)-specific CD8(+) T cells in sentinel lymph nodes (SLN) of melanoma patients upon intradermal administration of the CpG-B oligodeoxynucleotide PF-3512676. To facilitate functional testing of T cells from small SLN samples, high-efficiency polyclonal T cell expansion is required. In this study, SLN cells were expanded via classic methodologies with plate- or bead-bound anti-CD3/CD28 antibodies and with the K562/CD32/4-1BBL artificial APC system (K32/4-1BBL aAPC) and analyzed for responsiveness to common recall or TAA-derived peptides. K32/4-1BBL-expanded T cell populations contained significantly more effector/memory CD8(+) T cells. Moreover, recall and melanoma antigen-specific CD8(+) T cells were more frequently detected in K32/4-1BBL-expanded samples as compared with anti-CD3/CD28-expanded samples. We conclude that K32/4-1BBL aAPC are superior to anti-CD3/CD28 antibodies for the expansion of in vivo-primed specific CD8(+) T cells and that their use facilitates the sensitive monitoring of functional anti-tumor T cell immunity in SLN |
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Description: | Date Completed 17.02.2011 Date Revised 15.12.2020 published: Print-Electronic Citation Status MEDLINE |
ISSN: | 1521-7035 |
DOI: | 10.1016/j.clim.2010.07.009 |