par Keymeulen, Bart;Candon, Sophie;Fafi-Kremer, Samira;Ziegler, Anette G;Leruez-Ville, Marianne;Mathieu, Chantal;Vandemeulebroucke, Evy;Walter, Markus;Crenier, Laurent ;Thervet, Eric;Legendre, Christophe;Pierard, Denis;Hale, Geoff;Waldmann, Herman;Bach, Jean-François;Seigneurin, Jean Marie;Pipeleers, Daniel;Chatenoud, Lucienne
Référence Blood, 115, 6, page (1145-1155)
Publication Publié, 2010-02
Référence Blood, 115, 6, page (1145-1155)
Publication Publié, 2010-02
Article révisé par les pairs
Résumé : | Here we report a unique situation in which an early and synchronized Epstein-Barr virus (EBV) reactivation was induced by a 6-day course of treatment with a humanized CD3-specific monoclonal antibody in patients with recent onset of type 1 diabetes. The virologic and immunologic analysis demonstrated that this reactivation was transient, self-limited, and isolated, associated with the rapid advent of an EBV-specific T-cell response. The anti-CD3 antibody administration induced short-lasting immunosuppression and minor yet clear-cut signs of T-cell activation that preceded viral reactivation. Early posttransplant monitoring of renal and islet allograft recipients showed that no comparable phenomenon was observed after the administration of full-dose immunosuppressive therapy. This EBV reactivation remains of no apparent clinical concern over the long term and should not preclude further development of therapeutic anti-CD3 antibodies. This phenomenon may also direct new research avenues to understand the still ill-defined nature of stimuli triggering EBV reactivation in vivo. |