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Effect of Opioid Use on Immune Activation and HIV Persistence on ART
Livio Azzoni1, David Metzger2, Luis J Montaner3
1HIV Immunopathogenesis Laboratory, The Wistar Institute, 3601 Spruce Street, Philadelphia, PA, 19104, USA.
Abstract:
While there is an emerging consensus that engagement of the Mu opioid receptor by opioids may modulate various stages the HIV life cycle (e.g.: increasing cell susceptibility to infection, promoting viral transcription, and depressing immune responses to virally-infected cells), the overall effect on latency and viral reservoirs remains unclear. Importantly, the hypothesis that the increase in immune activation observed in chronic opioid users by direct or indirect mechanisms (i.e., microbial translocation) would lead to a larger HIV reservoir after ART-suppression has not been supported to date. The potential for a subsequent decrease in reservoirs after ART-suppression has been postulated and is supported by early reports of opioid users having lower latent HIV burden. Here, we review experimental data supporting the link between opioid use and HIV modulation, as well as the scientific premise for expecting differential changes in immune activation and HIV reservoir between different medications for opioid use disorder. A better understanding of potential changes in HIV reservoirs relative to the engagement of the Mu opioid receptor and ART-mediated immune reconstitution will help guide future cure-directed studies in persons living with HIV and opioid use disorder. Graphical Abstract Review. HIV replication, immune activation and dysbiosis: opioids may affect immune reconstitution outcomes despite viral suppression.
Insights
Opioid use impacts HIV infection stages and immune responses. Research suggests potential reductions in HIV reservoirs with opioid use disorder treatments, guiding future HIV cure studies.
Area of Science:
- Immunology
- Virology
- Pharmacology
Background:
- Opioid engagement with Mu opioid receptors influences HIV life cycle stages.
- The impact of opioid use on HIV latency and viral reservoirs is not fully understood.
- Increased immune activation in opioid users was hypothesized to enlarge HIV reservoirs, but this is not supported by current data.
Purpose of the Study:
- To review experimental data linking opioid use to HIV modulation.
- To explore the scientific basis for differential changes in immune activation and HIV reservoirs with various opioid use disorder medications.
- To guide future HIV cure-directed research in individuals with HIV and opioid use disorder.
Main Methods:
- Review of experimental data on opioid use and HIV.
- Analysis of scientific premises for immune activation and HIV reservoir changes.
- Consideration of Mu opioid receptor engagement and ART-mediated immune reconstitution.
Main Results:
- Opioid use affects HIV replication, immune activation, and microbial dysbiosis.
- Evidence suggests opioid use may lead to lower latent HIV burden.
- Differential effects on immune activation and HIV reservoirs are expected with different medications for opioid use disorder.
Conclusions:
- Understanding opioid receptor interactions and ART-mediated immune reconstitution is crucial.
- Opioid use can impact immune reconstitution outcomes even with viral suppression.
- Further research is needed to optimize HIV cure strategies for individuals with co-occurring HIV and opioid use disorder.
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