Effects of Antibodies on HIV-1 Immune Responses
Author Information
Author(s): Visciano Maria Luisa, Tuen Michael, Chen Pei-de, Hioe Catarina E
Primary Institution: New York University School of Medicine and Veterans Affairs New York Harbor Healthcare System
Hypothesis
How do antibodies to the CD4-binding site of HIV-1 gp120 affect immune responses in vivo?
Conclusion
Anti-CD4bs antibodies can suppress CD4 T cell responses while enhancing antibody responses against HIV-1 gp120.
Supporting Evidence
- Anti-CD4bs antibodies were generated only after immunization with CD4bs+ Env.
- The presence of anti-CD4bs antibodies was associated with lower levels of envelope-specific lymphoproliferation.
- Immunization with gp120 in the presence of anti-CD4bs mAb reduced CD4 T cell responses.
Takeaway
Some antibodies can make it harder for the body to fight off a virus by blocking certain immune responses, but they can also help the body make more antibodies.
Methodology
Mice were immunized with envelope proteins with or without CD4-binding activity, and immune responses were assessed through various assays.
Potential Biases
Potential bias in interpreting the effects of antibodies due to the specific model used.
Limitations
The study was conducted in a murine model, which may not fully replicate human responses.
Participant Demographics
B10.A and BALB/c mice were used in the study.
Statistical Information
P-Value
p<0.05
Confidence Interval
210–470
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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