A thermostable mRNA vaccine against COVID-19
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There has been an urgent need of vaccines against coronavirus disease 2019 (COVID-19) due to the ongoing SARS-CoV-2 pandemic. Among all approaches, messenger RNA (mRNA) -based vaccine has emerged as a rapid and versatile platform to quickly respond to such a challenge. Here, we developed a lipid-nanoparticle-encapsulated mRNA (mRNA-LNP) encoding the receptor binding domain (RBD) of SARS-CoV-2 as a vaccine candidate (termed ARCoV). Intramuscular immunization of ARCoV mRNA-LNPs elicited robust neutralizing antibodies against SARS-CoV-2 as well as Th1-biased cellular response in mice and non-human primates. Two doses of ARCoV immunization in mice conferred complete protection against the challenge of a SARS-CoV-2 mouse adapted strain. Additionally, ARCoV was manufactured in liquid formulation and can be stored at room temperature for at least one week. This novel COVID-19 mRNA vaccine, ARCoV, is currently being evaluated in phase 1 clinical trials.
Link to resourcehttps://doi.org/10.1016/j.cell.2020.07.024
- Vacunas en proceso 
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