UMMS Affiliation

Program in Molecular Medicine; Department of Biochemistry and Molecular Pharmacology; Graduate School of Biomedical Sciences

Publication Date

2018-12-13

Document Type

Article

Disciplines

Amino Acids, Peptides, and Proteins | Biological Factors | Cells | Immune System Diseases | Immunity | Immunology of Infectious Disease | Immunoprophylaxis and Therapy | Nucleic Acids, Nucleotides, and Nucleosides | Therapeutics | Virus Diseases | Viruses

Abstract

HIV-1-infected people who take drugs that suppress viremia to undetectable levels are protected from developing AIDS. Nonetheless, HIV-1 establishes proviruses in long-lived CD4(+) memory T cells, and perhaps other cell types, that preclude elimination of the virus even after years of continuous antiviral therapy. Here we show that the HIV-1 provirus activates innate immune signaling in isolated dendritic cells, macrophages, and CD4(+) T cells. Immune activation requires transcription from the HIV-1 provirus and expression of CRM1-dependent, Rev-dependent, RRE-containing, unspliced HIV-1 RNA. If rev is provided in trans, all HIV-1 coding sequences are dispensable for activation except those cis-acting sequences required for replication or splicing. Our results indicate that the complex, post-transcriptional regulation intrinsic to HIV-1 RNA is detected by the innate immune system as a danger signal, and that drugs which disrupt HIV-1 transcription or HIV-1 RNA metabolism would add qualitative benefit to current antiviral drug regimens.

Keywords

HIV-1, innate immune signaling, immune activation

Rights and Permissions

Copyright © The Author(s) 2018. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

DOI of Published Version

10.1038/s41467-018-07753-2

Source

Nat Commun. 2018 Dec 13;9(1):5305. doi: 10.1038/s41467-018-07753-2. Link to article on publisher's site

Journal/Book/Conference Title

Nature communications

Related Resources

Link to Article in PubMed

PubMed ID

30546110

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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