Evidence map›Paper›PMID 26176938›Full record

ReviewChannels (Austin, Tex.)2015

The mechanism of μ-opioid receptor (MOR)-TRPV1 crosstalk in TRPV1 activation involves morphine anti-nociception, tolerance and dependence.

Yanju Bao, Yebo Gao, Liping Yang, Xiangying Kong, Jing Yu, Wei Hou, Baojin Hua

Open access · goldAbstract readReview
In one paragraph

Review in Channels (Austin, Tex.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.0field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Activation of µ-δ Opioid Receptor Heteromer Attenuates Chemotherapy-Induced Neuropathic Pain in Mice.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025
    Article
  4. Review
  5. Advancing Zebrafish (Veterinary sciences · 2025
    Review
  6. Article
  7. Electroacupuncture alleviates zymosan-induced colorectal hypersensitivity.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2025
    Article
  8. Article
  9. Article
  10. Repeated Morphine Administration IncreasesBiomolecules & therapeutics · 2022
    Article
  11. Side Effects of Opioids Are Ameliorated by Regulating TRPV1 Receptors.International journal of environmental research and public health · 2022
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Yanju Baoa Department of Oncology ; Guang'anmen Hospital, China Academy of Chinese Medical Sciences ; Beijing , P. R. China.
Yebo Gaoa Department of Oncology ; Guang'anmen Hospital, China Academy of Chinese Medical Sciences ; Beijing , P. R. China.
Liping Yangc Department of Nephrology ; Guang'anmen Hospital, China Academy of Chinese Medical Sciences ; Beijing , P. R. China.
Xiangying Kongd Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences ; Beijing , P. R. China.
Jing Yue Department of Oncology ; Beijing Friendship Hospital, Capital Medical University ; Beijing , China.
Wei Houa Department of Oncology ; Guang'anmen Hospital, China Academy of Chinese Medical Sciences ; Beijing , P. R. China.
Baojin Huaa Department of Oncology ; Guang'anmen Hospital, China Academy of Chinese Medical Sciences ; Beijing , P. R. China.
Chinese Academy of Medical Sciences & Peking Union Medical College · CNGuang’anmen Hospital · CNBeijing Friendship Hospital · CNBeijing University of Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Initiated by the activation of various nociceptors, pain is a reaction to specific stimulus modalities. The μ-opioid receptor (MOR) agonists, including morphine, remain the most potent analgesics to treat patients with moderate to severe pain. However, the utility of MOR agonists is limited by the adverse effects associated with the use of these drugs, including analgesic tolerance and physical dependence. A strong connection has been suggested between the expression of the transient receptor potential vanilloid type 1 (TRPV1) ion channel and the development of inflammatory hyperalgesia. TRPV1 is important for thermal nociception induction, and is mainly expressed on sensory neurons. Recent reports suggest that opioid or TRPV1 receptor agonist exposure has contrasting consequences for anti-nociception, tolerance and dependence. Chronic morphine exposure modulates TRPV1 activation and induces the anti-nociception effects of morphine. The regulation of many downstream targets of TRPV1 plays a critical role in this process, including calcitonin gene-related peptide (CGRP) and substance P (SP). Additional factors also include capsaicin treatment blocking the anti-nociception effects of morphine in rats, as well as opioid modulation of TRPV1 responses through the cAMP-dependent PKA pathway and MAPK signaling pathways. Here, we review new insights concerning the mechanism underlying MOR-TRPV1 crosstalk and signaling pathways and discuss the potential mechanisms of morphine-induced anti-nociception, tolerance and dependence associated with the TRPV1 signaling pathway and highlight how understanding these mechanisms might help find therapeutic targets for the treatment of morphine induced antinociception, tolerance and dependence.

Indexed as

Analgesics, OpioidAnimalsHumansMorphineMorphine DependenceNociceptionReceptors, Opioid, muSignal TransductionTRPV Cation ChannelsAnalgesics, OpioidMorphineReceptors, Opioid, muTRPV Cation Channelscalcitonin gene-related peptide (CGRP)ion channelopioid tolerancesubstance P (SP)transient receptor potential vanilloid type 1 (TRPV1)μ opioid receptor (MOR)

Identifiers

PMID26176938
PMCPMC4826130
OpenAlexW2180980616

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.