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Wiesner, M. ; Zentz, C. ; Hammer, M.H.* ; Cobbold, M.* ; Kern, F.* ; Kolb, H.-J. ; Hammerschmidt, W. ; Zeidler, R.* ; Moosmann, A.

Selection of CMC-specific CD8⁺ and CD4⁺ T cells by mini-EBV-transformed B cell lines.

Eur. J. Immunol. 35, 2110-2121 (2005)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Efficient protocols to generate cytomegalovirus (CMV)-specific T cells are required for adoptive immunotherapy. Recombinant Epstein-Barr virus (EBV) vectors called mini-EBV can be used to establish permanent B cell lines in a single step, which present the CMV antigen pp65 in a constitutive manner. These B cell lines, coined pp65 mini-LCL, were successfully used to reactivate and expand CMV-specific cytotoxic T cells. Here we evaluate this pp65 mini-EBV system in closer detail, focusing on (1) the quantification of T cells with specific effector function and (2) the identification of CMV-specific CD4+ helper T cells. The co-expansion of various functional CMV epitope specificities was demonstrated by IFN-γ enzyme-linked immunospot assay (ELISPOT) assays and HLA-peptide tetramer staining. Single-cell cloning resulted in both CD4+ and CD8+ T cell clones, the majority of which was CMV specific. Thus, mini-LCL present the pp65 antigen on HLA class I and II, mobilizing both arms of the T cell response. Using a peptide library covering the pp65 sequence for further analysis of T cell clones, we identified new pp65 CD8+ and CD4+ T cell epitopes.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter cytomegalovirus; T cells; mini-EBV; mini-LCL; adoptive immunotherapy
ISSN (print) / ISBN 0014-2980
e-ISSN 1521-4141
Zeitschrift European Journal of Immunology
Quellenangaben Band: 35, Heft: 7, Seiten: 2110-2121 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Hoboken
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Gene Vector (AGV)
CCG Hematopoetic Cell Transplants (IMI-KHZ)