Effective induction of anti-melanoma immunity following genetic vaccination with synthetic mRNA coding for the fusion protein EGFP.TRP2 |
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Authors: | Julia Steitz Cedrik M. Britten Thomas Wölfel Thomas Tüting |
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Affiliation: | (1) Department of Dermatology, Laboratory of Experimental Dermatology, Rheinische Friedrich Wilhelm University, Sigmund Freud Str. 25, 53105 Bonn, Germany;(2) III. Medical Department, University of Mainz, , Germany |
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Abstract: | RNA-based genetic immunization represents an alternative novel strategy for antigen-specific cancer vaccines. In the present paper we investigate the use of synthetic messenger RNA in an experimental melanoma model. We show that gene gun-based immunization using synthetic RNA mediates gene expression in the epidermis and effectively induces antigen-specific cellular and humoral immunity in mice in vivo. Importantly, bombardment of the skin with RNA coding for the melanocytic self-antigen TRP2 linked to the immunogenic protein EGFP was associated with protection against experimentally induced B16 melanoma lung metastases and vitiligo-like fur depigmentation. Our results provide a scientific basis for clinical trials using synthetic mRNA encoding melanocytic antigens linked to immunogenic helper proteins for vaccination of patients with melanoma. Julia Steitz and Cedrik M. Britten contributed equally to this work. |
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Keywords: | RNA Melanoma Vaccine TRP2 |
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