Virus-host interactions in paediatric HIV-1 infection
1Department of Oncology and Surgical Sciences, Unit of Viral Oncology, AIDS Reference Center, University of Padova, Istituto Oncologico Veneto-IRCCS, Padova, Italy.
Current Opinion in HIV and AIDS
|April 18, 2009
Summary
Host genetic factors influencing innate resistance and immunity are crucial in preventing mother-to-child HIV-1 transmission and disease progression in infants. Discovering natural protection correlates could lead to new HIV prevention and cure strategies.
Area of Science:
- Virology
- Immunology
- Genetics
Background:
- Human immunodeficiency virus type 1 (HIV-1) exhibits significant genetic variability, impacting host interactions.
- Mother-to-child transmission is the primary source of pediatric AIDS, occurring when the infant immune system is developing.
- Innate immune responses, rather than adaptive immunity, may be critical in infant HIV-1 infection control.
Purpose of the Study:
- To review natural components and host factors that block HIV-1 replication and transmission.
- To focus on innate resistance and immunity mechanisms against HIV-1 in infants.
- To explore the influence of host genetic variants on HIV-1 mother-to-child transmission and disease outcome.
Main Methods:
- Review of recent findings on antiviral molecules and mechanisms.
- Analysis of host factors interfering with HIV-1 entry and replication (innate resistance).
- Examination of host factors providing first-line defense (innate immunity).
Main Results:
- New molecules and mechanisms of antiviral activity against HIV-1 have been identified.
- Host genetic variants matching viral genomes can confer innate resistance or immunity.
- These host-viral interactions influence mother-to-child HIV-1 transmission and infant disease progression.
Conclusions:
- Understanding host-pathogen interactions is key to combating HIV-1.
- Natural correlates of protection offer potential for novel HIV-1 prevention and cure strategies.
- Targeting innate resistance and immunity could be a breakthrough in pediatric AIDS research.
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