Antigen presenting cell targeted T cell DNA vaccine inducing strong and specific cellular responses across multiple T cell epitopes of SARS-COV-2
نویسندگان
چکیده
Abstract The severe respiratory syndrome coronavirus 2 (SARS-CoV-2) causing COVID-19 has continuously evolved with successive new virus variants of concern (VOC). A key challenge is to develop vaccines that can prevent infection and/or protect against disease caused VOCs evade vaccine induced Spike neutralizing antibodies. T cell responses likely contribute the efficacy approved and provide rationale for development T-cell based vaccines. VB10.2210 a was developed using Nykode’s easily adaptable DNA plasmid (pDNA) platform. pDNA encodes homodimers consisting i) targeting unit binds chemokine receptors on antigen-presenting cells, ii) dimerization unit, iii) an antigenic selection validated immunogenic SARS-CoV-2-specific epitopes. epitopes were identified by Adaptive receptor sequencing more than 6500 samples from individuals representing diverse geographies. candidate designed broad HLA coverage contains diversity both MHCI MHCII across multiple viral proteins known VOCs. In vitro characterization showed intact protein expressed secreted in human culture. immunogenicity evaluated transgenic HLA-A2.1, C57BL/6 BALB/c mice. Preclinical data these three mouse models demonstrate consistently strong, broad, dose-dependent, persistent currently being safety Phase I clinical trial (NCT05069623).
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ژورنال
عنوان ژورنال: Journal of Immunology
سال: 2023
ISSN: ['1550-6606', '0022-1767']
DOI: https://doi.org/10.4049/jimmunol.210.supp.159.03