A DNA nanostructure platform for directed assembly of synthetic vaccines.
Summary of "A DNA nanostructure platform for directed assembly of synthetic vaccines."
Safe and effective vaccines offer the best intervention for disease control. One strategy to maximize vaccine immunogenicity without compromising safety is to rationally design molecular complexes that mimic the natural structure of immunogenic microbes, but without the disease-causing components. Here we use highly programmable DNA nanostructures as platforms to assemble a model antigen and CpG adjuvants together into nanoscale complexes with precise control of the valency and spatial arrangement of each element. Our results from immunized mice show that compared to a mixture of antigen and CpG molecules, the assembled antigen-adjuvant-DNA complexes induce strong and long-lasting antibody responses against the antigen without stimulating a reaction to the DNA nanostructure itself. This result demonstrates the potential of DNA nanostructures to serve as general platforms for the rational design and construction of a variety of vaccines.
Affiliation
Journal Details
This article was published in the following journal.
Name: Nano letters
ISSN: 1530-6992
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22746330
- DOI: http://dx.doi.org/10.1021/nl301877k
Medical and Biotech [MESH] Definitions
Vaccines, Synthetic
Small synthetic peptides that mimic surface antigens of pathogens and are immunogenic, or vaccines manufactured with the aid of recombinant DNA techniques. The latter vaccines may also be whole viruses whose nucleic acids have been modified.
Iscoms
A formulation for presenting an antigen to induce specific immunologic responses. It consists of an assembly of antigens in multimeric form. The assembly is attached to a matrix with a built-in adjuvant, saponin. ISCOMs induce strong serum antibody responses, and are used as highly immunogenic forms of subunit vaccines.
Herpes Simplex Virus Vaccines
Vaccines or candidate vaccines used to prevent infection with viruses from the genus SIMPLEXVIRUS. This includes vaccines for HSV-1 and HSV-2.
Papillomavirus Vaccines
Vaccines or candidate vaccines used to prevent PAPILLOMAVIRUS INFECTIONS. Human vaccines are intended to reduce the incidence of UTERINE CERVICAL NEOPLASMS, so they are sometimes considered a type of CANCER VACCINES. They are often composed of CAPSID PROTEINS, especially L1 protein, from various types of ALPHAPAPILLOMAVIRUS.
Dengue Vaccines
Vaccines or candidate vaccines used to prevent infection with DENGUE VIRUS. These include live-attenuated, subunit, DNA, and inactivated vaccines.
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