ArticleJournal of neuroscience research2022
Dysregulated expression of the alternatively spliced variant mRNAs of the mu opioid receptor gene, OPRM1, in the medial prefrontal cortex of male human heroin abusers and heroin self-administering male rats.
Article in Journal of neuroscience research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
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Who cites it
19 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.
- Identifying novel gene dysregulation associated with opioid overdose death: a meta-analysis of differential gene expression in human prefrontal cortex.Translational psychiatry · 2026Pooled it
- Mu-opioid and nociceptin receptors show divergent, cell-type-specific actions in the mesocorticolimbic reward system in opioid use disorder.Frontiers in cellular neuroscience · 2026Review
- Morphine-inducedFrontiers in neuroscience · 2026Article
- Alternative splicing in addiction.Current opinion in genetics & development · 2025Review
- Article
- Molecular and cellular basis of mu-opioid receptor signaling: mechanisms underlying tolerance and dependence development.Frontiers in neuroscience · 2025Review
- Modulation of Nicotine-Associated Behaviour in Rats By μ-Opioid Signals from the Medial Prefrontal Cortex to the Nucleus Accumbens Shell.Neuroscience bulletin · 2024Article
- An emerging multi-omic understanding of the genetics of opioid addiction.The Journal of clinical investigation · 2024Article
- Identifying novel gene dysregulation associated with opioid overdose death: A meta-analysis of differential gene expression in human prefrontal cortex.medRxiv : the preprint server for health sciences · 2024Article
- Circadian rhythm disruptions associated with opioid use disorder in synaptic proteomes of human dorsolateral prefrontal cortex and nucleus accumbens.Molecular psychiatry · 2023Article
- MicroRNA-mediated translational pathways are regulated in the orbitofrontal cortex and peripheral blood samples during acute abstinence from heroin self-administration.Advances in drug and alcohol research · 2023Article
- Article
- Exploring Pharmacological Functions of Alternatively Spliced Variants of the Mu Opioid Receptor Gene,International journal of molecular sciences · 2022Review
- Transcriptional Alterations in Dorsolateral Prefrontal Cortex and Nucleus Accumbens Implicate Neuroinflammation and Synaptic Remodeling in Opioid Use Disorder.Biological psychiatry · 2021Article
- Alternative Pre-mRNA Splicing of the Mu Opioid Receptor Gene,Biomolecules · 2021Review
- Mu Opioids Induce Biased Signaling at the Full-Length Seven Transmembrane C-Terminal Splice Variants of the mu Opioid Receptor Gene, Oprm1.Cellular and molecular neurobiology · 2021Article
- Interactive Mechanisms of Supraspinal Sites of Opioid Analgesic Action: A Festschrift to Dr. Gavril W. Pasternak.Cellular and molecular neurobiology · 2021Review
- Endogenous Opioid Peptides and Alternatively Spliced Mu Opioid Receptor Seven Transmembrane Carboxyl-Terminal Variants.International journal of molecular sciences · 2021Review
- Abuse Liability, Anti-Nociceptive, and Discriminative Stimulus Properties of IBNtxA.ACS pharmacology & translational science · 2020Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Heroin, a mu agonist, acts through the mu opioid receptor. The mu opioid receptor gene, OPRM1, undergoes extensive alternative splicing, creating an array of splice variants that are conserved from rodent to humans. Increasing evidence suggests that these OPRM1 splice variants are pharmacologically important in mediating various actions of mu opioids, including analgesia, tolerance, physical dependence, rewarding behavior, as well as addiction. In the present study, we examine expression of the OPRM1 splice variant mRNAs in the medial prefrontal cortex (mPFC), one of the major brain regions involved in decision-making and drug-seeking behaviors, of male human heroin abusers and male rats that developed stable heroin-seeking behavior using an intravenous heroin self-administration (SA) model. The results show similar expression profiles among multiple OPRM1 splice variants in both human control subjects and saline control rats, illustrating conservation of OPRM1 alternative splicing from rodent to humans. Moreover, the expressions of several OPRM1 splice variant mRNAs were dysregulated in the postmortem mPFCs from heroin abusers compared to the control subjects. Similar patterns were observed in the rat heroin SA model. These findings suggest potential roles of the OPRM1 splice variants in heroin addiction that could be mechanistically explored using the rat heroin SA model.
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Registered trials
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