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Blood, 1 August 2006, Vol. 108, No. 3, pp. 870-877.
Prepublished online as a Blood First Edition Paper on April 6, 2006; DOI 10.1182/blood-2005-08-009357.
Previous Article | Table of Contents | Next Article 
GENE THERAPY
Targeting self-antigens through allogeneic TCR gene transfer
Moniek A. de Witte,
Miriam Coccoris,
Monika C. Wolkers,
Marly D. van den Boom,
Elly M. Mesman,
Ji-Ying Song,
Martin van der Valk,
John B. A. G. Haanen, and
Ton N. M. Schumacher
From the Division of Immunology and Division of Experimental Animal Pathology, The Netherlands Cancer Institute, Amsterdam.
Adoptive transfer of T-cell receptor (TCR) genes has been proposed as an attractive approach for immunotherapy in cases where the endogenous T-cell repertoire is insufficient. While there are promising data demonstrating the capacity of TCR-modified T cells to react to foreign antigen encounter, the feasibility of targeting tumor-associated self-antigens has not been addressed. Here we demonstrate that T-cell receptor gene transfer allows the induction of defined self-antigenspecific T-cell responses, even when the endogenous T-cell repertoire is nonreactive. Furthermore, we show that adoptive transfer of T-cell receptor genes can be used to induce strong antigen-specific T-cell responsiveness in partially MHC-mismatched hosts without detectable graft versus host disease. These results demonstrate the feasibility of using a collection of "off the shelf" T-cell receptor genes to target defined tumor-associated self-antigens and thereby form a clear incentive to test this immunotherapeutic approach in a clinical setting.

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