ArticleFrontiers in immunology2024
A dual-purpose humanized mouse model for testing antiviral strategies against both SIV and HIV.
Article in Frontiers in immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- XQ2, a Novel Derivative of Resveratrol, Reactivates Latent HIV‑1 via the Activation of Positive Transcription Elongation Factor B.ACS omega · 2026Article
- The promise and perils of humanized mice: workshop report from the 29th scientific conference of the society on NeuroImmune pharmacology (SNIP).NeuroImmune pharmacology and therapeutics · 2025Article
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5 authors.
Funding
Abstract
Nonhuman primate (NHP) models employing simian/simian-human immunodeficiency viruses (SIV/SHIVs) played a major role in the study of HIV pathogenesis, latency, and cure studies in a preclinical setting. However, it took many years to arrive at the current effective triple drug ARV regimen against SIV due to the genetic differences with that of HIVs. Since new combinations of drugs will be used in the evolving HIV cure studies, a small animal model would be ideal to determine their efficacy against the commonly used SIVs such as SIVmac239 to triage ineffective drugs prior to their application in NHPs. We recently determined that humanized mice (hu-mice) with a transplanted human immune system are permissive to SIVmac strains in addition to HIVs. Based on this novel finding, here we evaluated the utility of this dual-purpose hu-mouse model to test different ART regimens against SIVmac239. Infected mice showing chronic viremia were treated with a combination anti-retroviral treatment (cART) regimen consisting of emtricitabine/elvitegravir/tenofovir disoproxil fumarate (FTC/EVG/TDF). Full viral suppression was seen for several weeks in SIVmac239-infected and treated mice similar to that seen with HIV-1 BaL virus used as a control. However, viral rebound was eventually observed in SIVmac239 infected mice during the treatment period, suggesting viral escape compared to HIV-1 BaL with which viral suppression was fully sustained. Next, a cART regimen consisting of emtricitabine/bictegravir/tenofovir alafenamide fumarate (FTC/BIC/TAF) was similarly evaluated. Our results showed that this ARV regimen was fully effective in rapidly suppressing both SIVmac239 and HIV-1 BaL. Complete viral suppression was maintained until treatment interruption after which viral loads rebounded. These findings highlight the utility of humanized mice for
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