Author: Liu, Margaret A.
Title: A Comparison of Plasmid DNA and mRNA as Vaccine Technologies Document date: 2019_4_24
ID: 0fx1b7ph_5
Snippet: In 1990, Felgner and colleagues published, in Science [6] , their demonstration that so-called "naked DNA", that is, plasmid DNA that was not formulated in transfecting agents, could be directly injected into muscle with resultant expression of the encoded protein by myocytes. The observation was important because up until then, significant effort had been devoted to formulations to deliver DNA in vivo, and many such compounds were used for in vi.....
Document: In 1990, Felgner and colleagues published, in Science [6] , their demonstration that so-called "naked DNA", that is, plasmid DNA that was not formulated in transfecting agents, could be directly injected into muscle with resultant expression of the encoded protein by myocytes. The observation was important because up until then, significant effort had been devoted to formulations to deliver DNA in vivo, and many such compounds were used for in vitro transfection. The surprising simplicity of the approach generated significant interest, and when it was soon shown (in 1993) that plasmid DNA coding for a conserved internal influenza protein could generate protection in a pre-clinical mouse model against influenza challenge with a very different influenza strain than the strain from which the protein antigen was sequenced [7] , many groups began developing plasmid DNA for vaccines, cancer immunotherapies, and immune interventions for autoimmune and allergic diseases.
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