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Journal ArticleDOI

Heterologous protection against influenza by injection of DNA encoding a viral protein

TLDR
To generate a viral antigen for presentation to the immune system without the limitations of direct peptide delivery or viral vectors, plasmid DNA encoding influenza A nucleop protein was injected into the quadriceps of BALB/c mice and resulted in the generation of nucleoprotein-specific CTLs.
Abstract
Cytotoxic T lymphocytes (CTLs) specific for conserved viral antigens can respond to different strains of virus, in contrast to antibodies, which are generally strain-specific. The generation of such CTLs in vivo usually requires endogenous expression of the antigen, as occurs in the case of virus infection. To generate a viral antigen for presentation to the immune system without the limitations of direct peptide delivery or viral vectors, plasmid DNA encoding influenza A nucleoprotein was injected into the quadriceps of BALB/c mice. This resulted in the generation of nucleoprotein-specific CTLs and protection from a subsequent challenge with a heterologous strain of influenza A virus, as measured by decreased viral lung titers, inhibition of mass loss, and increased survival.

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Journal ArticleDOI

DNA vaccines: protective immunizations by parenteral, mucosal, and gene-gun inoculations

TL;DR: By far the most efficient DNA immunizations were achieved by using a gene gun to deliver DNA-coated gold beads to the epidermis, and 95% protection was achieved by two immunizations with beads loaded with as little as 0.4 micrograms of DNA.
Journal ArticleDOI

DNA vaccines: immunology, application, and optimization*.

TL;DR: This review focuses on the mechanisms by which DNA vaccines elicit immune responses, and a list of potential applications in a variety of preclinical models is provided.
Patent

Induction of a protective immune response in a mammal by injecting a DNA sequence

TL;DR: In this paper, a method for delivering an isolated polynucleotide such as DNA or RNA to the interior of a cell in a mammal comprising the injection of an isolated POINTE into a muscle of the mammal where the poynucleotide is taken up by the cells of the muscle and exerts a therapeutic effect on the mammal.
Journal ArticleDOI

Immunostimulatory DNA Sequences Necessary for Effective Intradermal Gene Immunization

TL;DR: Although ISS are necessary for gene vaccination, they down-regulate gene expression and thus may interfere with gene replacement therapy by inducing proinflammatory cytokines.
Journal ArticleDOI

DNA vaccines: ready for prime time?

TL;DR: A productive future for DNA vaccine technology is suggested as more optimized constructs, better trial designs and improved platforms are being brought into the clinic.
References
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Journal ArticleDOI

Direct gene transfer into mouse muscle in vivo.

TL;DR: RNA and DNA expression vectors containing genes for chloramphenicol acetyltransferase, luciferase, and beta-galactosidase were separately injected into mouse skeletal muscle in vivo and expression was comparable to that obtained from fibroblasts transfected in vitro under optimal conditions.
Journal ArticleDOI

Firefly luciferase gene: structure and expression in mammalian cells.

TL;DR: Assaying the expression of luciferase provides a rapid and inexpensive method for monitoring promoter activity and is estimated to be from 30- to 1,000-fold more sensitive than assaying chloramphenicol acetyltransferase expression.
Journal ArticleDOI

Site-restricted persistent cytomegalovirus infection after selective long-term depletion of CD4+ T lymphocytes.

TL;DR: The CD8+ effector cells raised in the CD4 subset- deficient host were able of clear vital tissues from productive infection and to restrict asymptomatic, persistent infection to acinar glandular epithelial cells in salivary gland tissue.
Journal ArticleDOI

Identification of a receptor for the morphogen retinoic acid.

TL;DR: Analysis of complementary DNA encoding a novel gene product reveals striking similarity to the steroid and thyroid hormone receptors and Binding and transcription activational studies show it to be a receptor for the vitamin A-related morphogen retinoic acid.
Journal ArticleDOI

Genetic immunization is a simple method for eliciting an immune response.

TL;DR: It is reported that an immune response can be elicited by introducing the gene encoding a protein directly into the skin of mice by using a hand-held form of the biolistic system.
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