TRP channels in cancer pain
Autor: | Laura de Barros Bernardes, Amanda Spring de Almeida, Gabriela Trevisan |
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Rok vydání: | 2020 |
Předmět: |
0301 basic medicine
TRPV1 TRPV Cation Channels Bioinformatics 03 medical and health sciences Transient receptor potential channel 0302 clinical medicine Transient Receptor Potential Channels medicine Animals Humans Pain Management Bone pain TRPA1 Cation Channel Pharmacology Clinical Trials as Topic business.industry musculoskeletal neural and ocular physiology Chronic pain Cancer Cancer Pain medicine.disease 030104 developmental biology Nociception nervous system Opioid medicine.symptom Cancer pain business psychological phenomena and processes 030217 neurology & neurosurgery medicine.drug |
Zdroj: | European journal of pharmacology. 904 |
ISSN: | 1879-0712 |
Popis: | Chronic pain is a common symptom experienced during cancer progression. Additionally, some patients experience bone pain caused by cancer metastasis, which further complicates the prognosis. Cancer pain is often treated using opioid-based pharmacotherapy, but these drugs possess several adverse effects. Accordingly, new mechanisms for cancer pain management are being explored, including transient receptor potential channels (TRPs). TRP ion channels are expressed in several tissues and play a key role in pain detection, especially TRP vanilloid 1 (TRPV1) and TRP ankyrin 1 (TRPA1). In the present review, we describe the role of TRPV1 and TRPA1 involved in cancer pain mechanisms. Several studies have revealed that the administration of TRPV1 or TRPA1 agonists/antagonists and TRPV1 or TRPA1 knockdown reduced sensitivity to nociception in cancer pain models. TRPV1 was also found to be involved in various models of cancer-induced bone pain (CIBP), with TRPV1 expression reportedly enhanced in some models. These studies have demonstrated the TRPV1 or TRPA1 association with cancer pain in models induced by tumour cell inoculation into the bone cavity, hind paw, mammary fat pad, and sciatic nerve in mice or rats. To date, only resiniferatoxin, a TRPV1 agonist, has been evaluated in clinical trials for cancer pain and showed preliminary positive results. Thus, TRP channels are potential targets for managing cancer-related pain syndromes. |
Databáze: | OpenAIRE |
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