Stoichiometry for entry and binding properties of the Env protein of R5 T cell-tropic HIV-1 and its evolutionary variant of macrophage-tropic HIV-1.
Xavier BonnerAmy SondgerothAmelia McCueNathan NicelyAshutosh TripathyEan SpielvogelMatthew MoeserRuian KeKarin LeidermanSarah B JosephRonald SwanstromPublished in: mBio (2024)
Human immunodeficiency virus type 1 normally targets CD4+ T cells for viral replication. When T cells are limiting, the virus can evolve to infect myeloid cells. The evolutionary step involves a change from requiring a high surface density of CD4 for entry to being able to infect cells with a low density of CD4, as is found on myeloid lineage cells such as macrophage and microglia. Viruses able to infect macrophages efficiently are most often found in the CNS late in the disease course, and such viruses may contribute to neurocognitive impairment. Here, we examine the CD4 binding properties of the viral Env protein to explore these two different entry phenotypes.
Keyphrases
- human immunodeficiency virus
- induced apoptosis
- antiretroviral therapy
- hepatitis c virus
- cell cycle arrest
- hiv infected
- hiv positive
- hiv aids
- sars cov
- binding protein
- adipose tissue
- bone marrow
- hiv testing
- oxidative stress
- genome wide
- signaling pathway
- immune response
- cell proliferation
- men who have sex with men
- spinal cord
- spinal cord injury
- nk cells
- dna binding
- transcription factor