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Dössinger, G.* ; Bunse, M.* ; Bet, J.* ; Albrecht, J. ; Paszkiewicz, P.J.* ; Weißbrich, B.* ; Schiedewitz, I. ; Henkel, L.* ; Schiemann, M. ; Neuenhahn, M. ; Uckert, W.* ; Busch, D.H.

MHC multimer-guided and cell culture-independent isolation of functional T cell receptors from single cells facilitates TCR identification for immunotherapy.

PLoS ONE 8:e61384 (2013)
Publ. Version/Full Text Volltext DOI PMC
Open Access Gold
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Adoptive therapy using T cells redirected to target tumor- or infection-associated antigens is a promising strategy that has curative potential and broad applicability. In order to accelerate the screening process for suitable antigen-specific T cell receptors (TCRs), we developed a new approach circumventing conventional in vitro expansion-based strategies. Direct isolation of paired full-length TCR sequences from non-expanded antigen-specific T cells was achieved by the establishment of a highly sensitive PCR-based T cell receptor single cell analysis method (TCR-SCAN). Using MHC multimer-labeled and single cell-sorted HCMV-specific T cells we demonstrate a high efficacy (approximately 25%) and target specificity of TCR-SCAN receptor identification. In combination with MHC-multimer based pre-enrichment steps, we were able to isolate TCRs specific for the oncogenes Her2/neu and WT1 even from very small populations (original precursor frequencies of down to 0.00005% of CD3(+) T cells) without any cell culture step involved. Genetic re-expression of isolated receptors demonstrates their functionality and target specificity. We believe that this new strategy of TCR identification may provide broad access to specific TCRs for therapeutically relevant T cell epitopes.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Multiple-sclerosis ; Cancer Regression ; High-avidity ; Antigen ; Lymphocytes ; Repertoire ; Expression ; Selection ; Level ; Expansions
ISSN (print) / ISBN 1932-6203
Journal PLoS ONE
Quellenangaben Volume: 8, Issue: 4, Pages: , Article Number: e61384 Supplement: ,
Publisher Public Library of Science (PLoS)
Publishing Place Lawrence, Kan.
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute of Virology (VIRO)
Institute of Molecular Immunology (IMI)