ArticleNeuroscience2007
Resistance to morphine analgesic tolerance in rats with deleted transient receptor potential vanilloid type 1-expressing sensory neurons.
Article in Neuroscience, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
37 citing papers in PubMed, 51 citations in OpenAlex.
- Sensory neuron BRAF mediates opioid-induced hyperalgesia and tolerance via presynaptic NMDA receptor hyperactivity.The Journal of clinical investigation · 2026Article
- GαScience signaling · 2025Article
- Biased Opioid Receptor Agonists: Balancing Analgesic Efficacy and Side-Effect Profiles.International journal of molecular sciences · 2025Review
- Repurposing EGFR Inhibitors for Oral Cancer Pain and Opioid Tolerance.Pharmaceuticals (Basel, Switzerland) · 2023Review
- mGluR5 from Primary Sensory Neurons Promotes Opioid-Induced Hyperalgesia and Tolerance by Interacting with and Potentiating Synaptic NMDA Receptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Targeting Peripheral μ-opioid Receptors or μ-opioid Receptor-Expressing Neurons Does not Prevent Morphine-induced Mechanical Allodynia and Anti-allodynic Tolerance.Neuroscience bulletin · 2023Article
- Selective activation of AKAP150/TRPV1 in ventrolateral periaqueductal gray GABAergic neurons facilitates conditioned place aversion in male mice.Communications biology · 2023Article
- Brief Opioid Exposure Paradoxically Augments Primary Afferent Input to Spinal Excitatory Neurons via α2δ-1-Dependent Presynaptic NMDA Receptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- Metformin prevents morphine-induced apoptosis in rats with diabetic neuropathy: a possible mechanism for attenuating morphine tolerance.Naunyn-Schmiedeberg's archives of pharmacology · 2022Article
- BmK DKK13, A Scorpion Toxin, Alleviates Pain Behavior in a Rat Model of Trigeminal Neuralgia by Modulating Voltage-Gated Sodium Channels and MAPKs/CREB Pathway.Molecular neurobiology · 2022Article
- Repeated Morphine Administration IncreasesBiomolecules & therapeutics · 2022Article
- Side Effects of Opioids Are Ameliorated by Regulating TRPV1 Receptors.International journal of environmental research and public health · 2022Review
- The Guts of the Opioid Crisis.Physiology (Bethesda, Md.) · 2021Article
- Role of β-arrestin-2 in short- and long-term opioid tolerance in the dorsal root ganglia.European journal of pharmacology · 2021Article
- Role of peripheral sensory neuron mu-opioid receptors in nociceptive, inflammatory, and neuropathic pain.Regional anesthesia and pain medicine · 2020Article
- Antinociceptive and genotoxic assessments of the antagonist TRPV1 receptor SB-366791 on morphine-induced tolerance in mice.Naunyn-Schmiedeberg's archives of pharmacology · 2020Article
- μ-Opioid receptors in primary sensory neurons are involved in supraspinal opioid analgesia.Brain research · 2020Article
- Mechanisms of Botulinum Toxin Type A Action on Pain.Toxins · 2019Review
- α2δ-1-Bound N-Methyl-D-aspartate Receptors Mediate Morphine-induced Hyperalgesia and Analgesic Tolerance by Potentiating Glutamatergic Input in Rodents.Anesthesiology · 2019Article
- μ-Opioid receptors in primary sensory neurons are essential for opioid analgesic effect on acute and inflammatory pain and opioid-induced hyperalgesia.The Journal of physiology · 2019Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Deletion of transient receptor potential vanilloid type 1 (TRPV1)-expressing afferent neurons reduces presynaptic mu opioid receptors but paradoxically potentiates the analgesic efficacy of mu opioid agonists. In this study, we determined if removal of TRPV1-expressing afferent neurons by resiniferatoxin (RTX), an ultrapotent capsaicin analog, influences the development of opioid analgesic tolerance. Morphine tolerance was induced by daily intrathecal injections of 10 microg of morphine for 14 consecutive days or by daily i.p. injections of 10 mg/kg of morphine for 10 days. In vehicle-treated rats, the effect of intrathecal or systemic morphine on the mechanical withdrawal threshold was gradually diminished within 7 days. However, the analgesic effect of intrathecal and systemic morphine was sustained in RTX-treated rats at the time the morphine effect was lost in the vehicle group. Furthermore, the mu opioid receptor-G protein coupling in the spinal cord was significantly decreased ( approximately 22%) in vehicle-treated morphine tolerant rats, but was not significantly altered in RTX-treated rats receiving the same treatment with morphine. Additionally, there was a large reduction in protein kinase Cgamma-immunoreactive afferent terminals in the spinal dorsal horn of RTX-treated rats. These findings suggest that loss of TRPV1-expressing sensory neurons attenuates the development of morphine analgesic tolerance possibly by reducing mu opioid receptor desensitization through protein kinase Cgamma in the spinal cord. These data also suggest that the function of presynaptic mu opioid receptors on TRPV1-expressing sensory neurons is particularly sensitive to down-regulation by mu opioid agonists during opioid tolerance development.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.