Related Experiment Video
Updated: Nov 15, 2025

09:13
Isolation, Transfection, and Culture of Primary Human Monocytes
Published on: December 16, 2019
13.9K
HIV replication and latency in monocytes and macrophages
Rebecca T Veenhuis1, Celina M Abreu1, Erin N Shirk1
1Department of Molecular and Comparative Biology, Johns Hopkins University School of Medicine, Baltimore, MD, United States.
Seminars in Immunology
|March 2, 2021
Summary
Macrophages are now recognized as critical long-lived HIV reservoirs. Understanding HIV infection, replication, and latency in these cells is vital for developing strategies to eliminate the viral reservoir in people with HIV.
Area of Science:
- Immunology
- Virology
- Cell Biology
Background:
- Monocyte and macrophage reservoirs in virally suppressed people with HIV (vsPWH) were previously debated.
- Macrophages were traditionally considered to have moderate lifespans and limited self-renewal.
- Recent research indicates macrophages play a significant role as long-lived HIV reservoirs.
Purpose of the Study:
- To review the biology of monocytes and macrophages in HIV infection.
- To focus on HIV replication, latency, and reservoir measurement in myeloid cells.
- To address the need for understanding macrophage reservoirs for HIV cure strategies.
Main Methods:
- Literature review of studies on monocyte and macrophage biology.
- Analysis of research on HIV infection, replication, and latency in myeloid cells.
- Discussion of methods for measuring HIV reservoirs in macrophages.
Main Results:
- Macrophages are increasingly recognized as important, long-lived HIV reservoirs.
- HIV establishes infection and latency within macrophages in vivo.
- Understanding macrophage biology is crucial for reservoir elimination.
Conclusions:
- Macrophages are key cellular reservoirs for HIV, challenging previous assumptions.
- Further research into HIV replication and latency in macrophages is essential.
- Effective strategies to eliminate the HIV reservoir must target these myeloid cells.
Related Concept Videos
Size and Structure of Viral Genomes
386
Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
386
Viruses with RNA Genomes
369
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
369
Retrovirus Life Cycles
48.3K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
48.3K

