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Development of replication-defective lymphocytic choriomeningitis virus vectors for the induction of potent CD8+ T cell immunity

Lukas Flatz*, Ahmed N. Hegazy, Andreas Bergthaler, Admar Verschoor, Christina Claus, Marylise Fernandez, Luca Gattinoni, Susan Johnson, Florian Kreppel, Stefan Kochanek, Maries Van Den Broek, Andreas Radbruch, Frédéric Lévy, Paul Henri Lambert, Claire Anne Siegrist, Nicholas P. Restifo, Max Löhning, Adrian F. Ochsenbein, Gary J. Nabel, Daniel D. Pinschewer

*Korrespondierende/r Autor/-in für diese Arbeit

Abstract

Lymphocytic choriomeningitis virus (LCMV) exhibits natural tropism for dendritic cells and represents the prototypic infection that elicits protective CD8+ T cell (cytotoxic T lymphocyte (CTL)) immunity. Here we have harnessed the immunobiology of this arenavirus for vaccine delivery. By using producer cells constitutively synthesizing the viral glycoprotein (GP), it was possible to replace the gene encoding LCMV GP with vaccine antigens to create replication-defective vaccine vectors. These rLCMV vaccines elicited CTL responses that were equivalent to or greater than those elicited by recombinant adenovirus 5 or recombinant vaccinia virus in their magnitude and cytokine profiles, and they exhibited more effective protection in several models. In contrast to recombinant adenovirus 5, rLCMV failed to elicit vector-specific antibody immunity, which facilitated re-administration of the same vector for booster vaccination. In addition, rLCMV elicited T helper type 1 CD4+ cell responses and protective neutralizing antibodies to vaccine antigens. These features, together with low seroprevalence in humans, suggest that rLCMV may show utility as a vaccine platform against infectious diseases and cancer.

OriginalspracheEnglisch
ZeitschriftNature Medicine
Jahrgang16
Ausgabenummer3
Seiten (von - bis)339-345
Seitenumfang7
ISSN1078-8956
DOIs
PublikationsstatusVeröffentlicht - 03.2010

Fördermittel

Swiss National Science Foundation (PP00A-114913) and was supported by grant 3100A0-104067/1 of the Swiss National Science Foundation. We thank H. Hengartner and R. Zinkernagel for critical comments, suggestions, discussions and long-term support; E. Horvath for technical assistance; S.A. Rosenberg and J.R. Wunderlich for samples from patients with melanoma; M. Roederer and K. Foulds for reagents and flow cytometry support; A. Oxenius, R. Spörri and N. Joller for providing access to their flow cytometry facility; A. Pegu, R. Roychoudhuri and C. Cheng for discussions and advice on human DC cultures; D. von Laer (Georg-Speyer-Haus) for plasmid M369 and GP-expressing 293T cells; H. Shen (University of Pennsylvania School of Medicine) for rLM-OVA; M. Groettrup (University of Constance) for VACC-OVA, originally generated by J.Yewdell (National Institute of Allergy and Infectious Diseases); and R. Schirmbeck (University of Ulm) for StT-OVA-G cDNA. L.F. was supported by a fellowship of the Schweizerische Stiftung für medizinisch-biologische Stipendien. A.N.H. is a fellow of GRAKO1121 of the German Research Foundation. M.L. is a Lichtenberg fellow funded by the Volkswagen Foundation. A.B. was supported by a PhD scholarship of the Boehringer Ingelheim Fonds and by a post-doctoral fellowship of the Roche Research Foundation. D.D.P. holds a stipendiary professorship of the

UN SDGs

Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

  1. SDG 3 – Gesundheit und Wohlergehen
    SDG 3 – Gesundheit und Wohlergehen

Strategische Forschungsbereiche und Zentren

  • Forschungsschwerpunkt: Infektion und Entzündung - Zentrum für Infektions- und Entzündungsforschung Lübeck (ZIEL)

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