Related Experiment Video
Updated: Jul 19, 2026
13:36
Utilizing the Antigen Capsid-Incorporation Strategy for the Development of Adenovirus Serotype 5-Vectored Vaccine Approaches
Published on: May 6, 2015
Combination DNA plus protein HIV vaccines
1Laboratory of Nucleic Acid Vaccines, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA. shan.lu@umassmed.edu
Springer Seminars in Immunopathology
|October 6, 2006
Summary
Developing an effective HIV vaccine requires eliciting balanced immune responses. DNA immunization, combined with protein boosts, shows promise for inducing both cellular immunity and high-quality antibodies against diverse HIV strains.
Area of Science:
- Immunology
- Vaccinology
- Molecular Biology
Background:
- Developing an HIV vaccine faces challenges in eliciting balanced humoral and cell-mediated immunity against diverse HIV strains.
- Nucleic acid immunization (DNA and RNA) has advanced HIV vaccine development since the 1990s.
- DNA immunization initially focused on cell-mediated immunity but shows potential for improved antibody responses.
Purpose of the Study:
- To explore the potential of DNA immunization in eliciting high-quality antibody responses for HIV vaccine development.
- To investigate strategies for overcoming the challenge of generating broadly reactive neutralizing antibodies against primary HIV-1 isolates.
- To evaluate combination vaccination strategies for inducing robust immune responses against HIV.
Main Methods:
- Utilizing DNA (and potentially RNA) as a means of immunization.
- Employing DNA prime and viral vector boost approaches for cell-mediated immunity.
- Incorporating protein boost components into DNA immunization schedules to enhance antibody responses.
Main Results:
- DNA immunization can elicit improved quality of antibody responses, crucial for HIV vaccine development.
- Combination DNA plus protein vaccination strategies leverage the benefits of both vaccine types.
- This combined approach effectively induces both cell-mediated immunity and antibody responses against HIV.
Conclusions:
- A combination DNA plus protein vaccination strategy is effective for inducing balanced humoral and cell-mediated immunity.
- This strategy holds significant promise for developing a broadly protective HIV vaccine.
- Further research into nucleic acid and protein combination vaccines is warranted for infectious disease prevention.
Related Concept Videos
01:09Recombinant DNA
Overview
01:09Recombinant DNA
Overview
01:30Cancer Vaccines
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
01:19Inhibitors of Virion Maturation and Assembly
As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...
00:36Viral Mutations
A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material for adaptive...
00:57Viral Recombination
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.