ArticleJournal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology2014
Δ(9)-Tetrahydrocannabinol treatment during human monocyte differentiation reduces macrophage susceptibility to HIV-1 infection.
Article in Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
28 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.
- Transcriptomic Alterations Induced by Tetrahydrocannabinol in SIV/HIV Infection: A Systematic Review.International journal of molecular sciences · 2025Pooled it
- The Association Between Marijuana Use and HIV Continuum of Care Outcomes: a Systematic Review.Current HIV/AIDS reports · 2019Pooled it
- Cannabis use frequency may differentially impact cognitive performance in young adults with and without HIV.Frontiers in adolescent medicine · 2026Article
- Cannabinoid Receptor Type 2 Agonist JWH-133 Stimulates Antiviral Factors and Decreases Proviral, Inflammatory, and Neurotoxic Proteins in HIV-Infected Macrophage Secretome.International journal of molecular sciences · 2025Article
- Differential Effects of Cannabinoid Receptor 2 Agonists on HIV Replication and Inflammatory Activation in Monocyte-Derived Macrophages and Induced Pluripotent Stem Cell-Derived Microglia.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025Article
- Cannabinoid Receptor 2 (CB2) in Macrophages: A Promising Clinical Target for Immune Disorders.International journal of molecular sciences · 2025Review
- Article
- Delta-9-Tetrahydrocannabinol Blocks Bone Marrow-Derived Macrophage Differentiation through Elimination of Reactive Oxygen Species.Antioxidants (Basel, Switzerland) · 2024Article
- Quantitative Proteomics Reveal That CB2R Agonist JWH-133 Downregulates NF-κB Activation, Oxidative Stress, and Lysosomal Exocytosis from HIV-Infected Macrophages.International journal of molecular sciences · 2024Article
- Anti-inflammatory effects of recreational marijuana in virally suppressed youth with HIV-1 are reversed by use of tobacco products in combination with marijuana.Retrovirology · 2022Article
- Cannabinoid receptor type 2 agonist JWH-133 decreases cathepsin B secretion and neurotoxicity from HIV-infected macrophages.Scientific reports · 2022Article
- Expression and Functions of the CBFrontiers in pharmacology · 2022Article
- Confound, Cause, or Cure: The Effect of Cannabinoids on HIV-Associated Neurological Sequelae.Viruses · 2021Review
- Mini-review: The therapeutic role of cannabinoids in neuroHIV.Neuroscience letters · 2021Review
- Self-Reported Cannabis Use and Markers of Inflammation in Men Who Have Sex With Men With and Without HIV.Cannabis and cannabinoid research · 2021Article
- Molecular Docking-Based Screening for Novel Inhibitors of the Human Immunodeficiency Virus Type 1 Protease that Effectively Reduce the Viral Replication in Human Cells.Journal of AIDS & clinical research · 2021Article
- Targeting Cannabinoid Receptor 2 on Peripheral Leukocytes to Attenuate Inflammatory Mechanisms Implicated in HIV-Associated Neurocognitive Disorder.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2020Review
- Cannabinoid-Induced Immunomodulation during Viral Infections: A Focus on Mitochondria.Viruses · 2020Review
- Impact of Cannabis Use on Brain Structure and Function in Suppressed HIV Infection.Journal of behavioral and brain science · 2020Article
- Druggable targets of the endocannabinoid system: Implications for the treatment of HIV-associated neurocognitive disorder.Brain research · 2019Review
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
The major psychoactive component of marijuana, Δ(9)-tetrahydrocannabinol (THC), also acts to suppress inflammatory responses. Receptors for THC, CB1, CB2, and GPR55, are differentially expressed on multiple cell types including monocytes and macrophages, which are important modulators of inflammation in vivo and target cells for HIV-1 infection. Use of recreational and medicinal marijuana is increasing, but the consequences of marijuana exposure on HIV-1 infection are unclear. Ex vivo studies were designed to investigate effects on HIV-1 infection in macrophages exposed to THC during or following differentiation. THC treatment of primary human monocytes during differentiation reduced HIV-1 infection of subsequent macrophages by replication competent or single cycle CCR5 using viruses. In contrast, treatment of macrophages with THC immediately prior to or continuously following HIV-1 exposure failed to alter infection. Specific receptor agonists indicated that the THC effect during monocyte differentiation was mediated primarily through CB2. THC reduced the number of p24 positive cells with little to no effect on virus production per infected cell, while quantitation of intracellular viral gag pinpointed the THC effect to an early event in the viral life cycle. Cells treated during differentiation with THC displayed reduced expression of CD14, CD16, and CD163 and donor dependent increases in mRNA expression of selected viral restriction factors, suggesting a fundamental alteration in phenotype. Ultimately, the mechanism of THC suppression of HIV-1 infection was traced to a reduction in cell surface HIV receptor (CD4, CCR5 and CXCR4) expression that diminished entry efficiency.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.