DNA-launched live-attenuated vaccines for biodefense applications.

Abstract:

:A novel vaccine platform uses DNA immunization to launch live-attenuated virus vaccines in vivo. This technology has been applied for vaccine development against positive-strand RNA viruses with global public health impact including alphaviruses and flaviviruses. The DNA-launched vaccine represents the recombinant plasmid that encodes the full-length genomic RNA of live-attenuated virus downstream from a eukaryotic promoter. When administered in vivo, the genomic RNA of live-attenuated virus is transcribed. The RNA initiates limited replication of a genetically defined, live-attenuated vaccine virus in the tissues of the vaccine recipient, thereby inducing a protective immune response. This platform combines the strengths of reverse genetics, DNA immunization and the advantages of live-attenuated vaccines, resulting in a reduced chance of genetic reversions, increased safety, and improved immunization. With this vaccine technology, the field of DNA vaccines is expanded from those that express subunit antigens to include a novel type of DNA vaccines that launch live-attenuated viruses.

journal_name

Expert Rev Vaccines

authors

Pushko P,Lukashevich IS,Weaver SC,Tretyakova I

doi

10.1080/14760584.2016.1175943

subject

Has Abstract

pub_date

2016-09-01 00:00:00

pages

1223-34

issue

9

eissn

1476-0584

issn

1744-8395

journal_volume

15

pub_type

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