ArticleMolecular neurobiology2023
Occludin Regulates HIV-1 Infection by Modulation of the Interferon Stimulated OAS Gene Family.
Article in Molecular neurobiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 16 citations in OpenAlex.
- Sigma-1 receptor regulates HIV-1 and methamphetamine-induced endothelial/pericyte barrier impairment via strain-specific inflammatory responses and mitochondrial dysregulation.Journal of neuroinflammation · 2026Article
- Occludin modulates HIV and ischaemic stroke response via the mitochondrial antiviral signalling pathway.Brain : a journal of neurology · 2026Article
- Review
- Occludin deficiency is associated with developmental impairment, locomotor dysfunction, and social deficiencies.Tissue barriers · 2026Article
- HIV-1 latent infection modulates RNA sensors and innate immunity signaling in human brain pericytes.Research square · 2025Article
- Brain Endothelial Cells in Blood-Brain Barrier Regulation and Neurological Therapy.International journal of molecular sciences · 2025Review
- Enteroviruses Activate Cellular Innate Immune Responses Prior to Adaptive Immunity and Tropism Contributes to Severe Viral Pathogenesis.Microorganisms · 2025Review
- Antiviral Effects of Avian Interferon-Stimulated Genes.Animals : an open access journal from MDPI · 2024Review
- MITOCHONDRIAL ANTIVIRAL PATHWAYS CONTROL ANTI-HIV RESPONSES AND ISCHEMIC STROKE OUTCOMES VIA THE RIG-1 SIGNALING AND INNATE IMMUNITY MECHANISMS.bioRxiv : the preprint server for biology · 2024Article
- Occludin: a gatekeeper of brain Infection by HIV-1.Fluids and barriers of the CNS · 2023Review
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10 authors at 1 institution in 1 country.
Funding
Abstract
HIV-1-associated blood brain barrier (BBB) alterations and neurocognitive disorders are frequent clinical manifestations in HIV-1 infected patients. The BBB is formed by cells of the neurovascular unit (NVU) and sealed together by tight junction proteins, such as occludin (ocln). Pericytes are a key cell type of NVU that can harbor HIV-1 infection via a mechanism that is regulated, at least in part, by ocln. After viral infection, the immune system starts the production of interferons, which induce the expression of the 2'-5'-oligoadenylate synthetase (OAS) family of interferon stimulated genes and activate the endoribonuclease RNaseL that provides antiviral protection by viral RNA degradation. The current study evaluated the involvement of the OAS genes in HIV-1 infection of cells of NVU and the role of ocln in controlling OAS antiviral signaling pathway. We identified that ocln modulates the expression levels of the OAS1, OAS2, OAS3, and OASL genes and proteins and, in turn, that the members of the OAS family can influence HIV replication in human brain pericytes. Mechanistically, this effect was regulated via the STAT signaling. HIV-1 infection of pericytes significantly upregulated expression of all OAS genes at the mRNA level but selectively OAS1, OAS2, and OAS3 at the protein level. Interestingly no changes were found in RNaseL after HIV-1 infection. Overall, these results contribute to a better understanding of the molecular mechanisms implicated in the regulation of HIV-1 infection in human brain pericytes and suggest a novel role for ocln in controlling of this process.
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