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Isolation, Transfection, and Culture of Primary Human Monocytes
Published on: December 16, 2019
Interaction of drugs of abuse and microRNA with HIV: a brief review
Sudheesh Pilakka-Kanthikeel1, Madhavan P N Nair1
1Department of Immunology, Institute of Neuroimmune Pharmacology, Herbert Wertheim College of Medicine, Florida International University Miami, FL, USA.
Abstract:
MicroRNAs (miRNAs), the post-transcriptional regulators of gene expression, play key roles in modulating many cellular processes. The changes in the expression profiles of several specific miRNAs affect the interactions between miRNA and their targets in various illnesses, including addiction, HIV, cancer etc. The presence of anti-HIV-1 microRNAs (which regulate the level of infectivity of HIV-1) have been validated in the cells which are the primary targets of HIV infection. Drugs of abuse impair the intracellular innate anti-HIV mechanism(s) in monocytes, contributing to cell susceptibility to HIV infection. Emerging evidence has implicated miRNAs are differentially expressed in response to chronic morphine treatment. Activation of mu opioid receptors (MOR) by morphine is shown to down regulate the expression of anti-HIV miRNAs. In this review, we summarize the results which demonstrate that several drugs of abuse related miRNAs have roles in the mechanisms that define addiction, and how they interact with HIV.
Insights
MicroRNAs regulate gene expression and are involved in addiction and HIV. Chronic drug use, like morphine, affects these microRNAs, potentially increasing HIV susceptibility.
Area of Science:
- Molecular Biology
- Virology
- Neuroscience
Background:
- MicroRNAs (miRNAs) are key post-transcriptional regulators of gene expression involved in various cellular processes.
- Altered miRNA expression profiles impact disease pathogenesis, including addiction and HIV infection.
- Anti-HIV-1 microRNAs are present in cells targeted by HIV, and their dysregulation is linked to disease progression.
Purpose of the Study:
- To review the role of microRNAs in addiction mechanisms.
- To explore the interaction between drugs of abuse, microRNAs, and HIV infection.
- To summarize evidence on microRNA dysregulation in response to chronic drug exposure.
Main Methods:
- Literature review of studies investigating microRNA expression and function.
- Analysis of research on the impact of drugs of abuse on cellular mechanisms.
- Examination of the interplay between microRNAs, mu opioid receptors, and HIV-1 infectivity.
Main Results:
- Drugs of abuse impair innate anti-HIV mechanisms in monocytes, increasing susceptibility to HIV infection.
- Chronic morphine treatment leads to differential expression of specific microRNAs.
- Activation of mu opioid receptors by morphine downregulates the expression of anti-HIV microRNAs.
Conclusions:
- MicroRNAs play significant roles in the mechanisms underlying addiction.
- Dysregulated microRNAs due to drug abuse may influence HIV susceptibility and progression.
- Understanding these interactions is crucial for developing therapeutic strategies for co-occurring addiction and HIV.
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