Related Experiment Video

Updated: Jul 9, 2026

Optimized Interferon-gamma ELISpot Assay to Measure T Cell Responses in the Guinea Pig Model after Vaccination
08:13

Optimized Interferon-gamma ELISpot Assay to Measure T Cell Responses in the Guinea Pig Model after Vaccination

Published on: January 20, 2019

Persistent antibody and T cell responses induced by HIV-1 DNA vaccine delivered by electroporation

Anthony D Cristillo1, Deborah Weiss, Lauren Hudacik

  • 1Advanced BioScience Laboratories, Inc., Department of Cell Biology, 5510 Nicholson Lane, Kensington, MD 20895, USA.

Biochemical and Biophysical Research Communications
|November 27, 2007
PubMed

Intramuscular needle injection of HIV-1 DNA vaccines typically elicits weak immune responses in immunized individuals. To improve such responses, the immunogenicity of a vaccine consisting of electroporated DNA followed by intramuscular protein boost was evaluated in rabbits and macaques. In macaques, electroporation of low dose DNA encoding HIV-1 env followed by gp120 protein elicited Th1 cytokines and functional CTL that persisted for over 1 year. In both macaques and rabbits, robust anti-envelope antibodies, elicited by electroporated DNA, were augmented by gp120 protein and such responses neutralized sensitive SHIV isolates. These findings highlight efficient priming of immune responses by electroporated DNA that in conjunction with protein boost may give rise to long-term immunity in immunized hosts.

More Related Videos

Skin Tattooing As A Novel Approach For DNA Vaccine Delivery06:37

Skin Tattooing As A Novel Approach For DNA Vaccine Delivery

Published on: October 18, 2012

Simultaneous Quantification of Anti-vector and Anti-transgene-Specific CD8+ T Cells Via MHC I Tetramer Staining After Vaccination with a Viral Vector08:10

Simultaneous Quantification of Anti-vector and Anti-transgene-Specific CD8+ T Cells Via MHC I Tetramer Staining After Vaccination with a Viral Vector

Published on: November 28, 2018

Related Concept Videos

Vaccinations01:51

Vaccinations

Overview
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Vaccines01:21

Vaccines

Vaccines are among the most effective tools in preventive medicine, designed to prepare the immune system to recognize and combat infectious agents. By introducing antigens—substances that the immune system identifies as foreign—vaccines stimulate an adaptive immune response that leads to immunological memory. This immunological memory enables the body to mount a faster and more effective response upon future exposures to the actual pathogen.Vaccines can be categorized based on the type of...
Immunological Memory01:23

Immunological Memory

Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature is...