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Kalsoom I, Shehzadi K, Li HS, Wen HL, Yu MJ. Unraveling the Mechanisms of Cannabidiol's Pharmacological Actions: A Comprehensive Research Overview. Top Curr Chem (Cham) 2024; 382:20. [PMID: 38829467 DOI: 10.1007/s41061-024-00465-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 05/05/2024] [Indexed: 06/05/2024]
Abstract
Cannabis sativa has long been used for neurological and psychological healing. Recently, cannabidiol (CBD) extracted from cannabis sativa has gained prominence in the medical field due to its non-psychotropic therapeutic effects on the central and peripheral nervous systems. CBD, also acting as a potent antioxidant, displays diverse clinical properties such as anticancer, antiinflammatory, antidepressant, antioxidant, antiemetic, anxiolytic, antiepileptic, and antipsychotic effects. In this review, we summarized the structural activity relationship of CBD with different receptors by both experimental and computational techniques and investigated the mechanism of interaction between related receptors and CBD. The discovery of structural activity relationship between CBD and target receptors would provide a direction to optimize the scaffold of CBD and its derivatives, which would give potential medical applications on CBD-based therapies in various illnesses.
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Affiliation(s)
- Iqra Kalsoom
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 10081, China
| | - Kiran Shehzadi
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 10081, China
| | - Han-Sheng Li
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 10081, China
| | - Hong-Liang Wen
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 10081, China
| | - Ming-Jia Yu
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 10081, China.
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2
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Socała K, Jakubiec M, Abram M, Mlost J, Starowicz K, Kamiński RM, Ciepiela K, Andres-Mach M, Zagaja M, Metcalf CS, Zawadzki P, Wlaź P, Kamiński K. TRPV1 channel in the pathophysiology of epilepsy and its potential as a molecular target for the development of new antiseizure drug candidates. Prog Neurobiol 2024; 240:102634. [PMID: 38834133 DOI: 10.1016/j.pneurobio.2024.102634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 04/26/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
Identification of transient receptor potential cation channel, subfamily V member 1 (TRPV1), also known as capsaicin receptor, in 1997 was a milestone achievement in the research on temperature sensation and pain signalling. Very soon after it became evident that TRPV1 is implicated in a wide array of physiological processes in different peripheral tissues, as well as in the central nervous system, and thereby could be involved in the pathophysiology of numerous diseases. Increasing evidence suggests that modulation of TRPV1 may also affect seizure susceptibility and epilepsy. This channel is localized in brain regions associated with seizures and epilepsy, and its overexpression was found both in animal models of seizures and in brain samples from epileptic patients. Moreover, modulation of TRPV1 on non-neuronal cells (microglia, astrocytes, and/or peripheral immune cells) may have an impact on the neuroinflammatory processes that play a role in epilepsy and epileptogenesis. In this paper, we provide a comprehensive and critical overview of currently available data on TRPV1 as a possible molecular target for epilepsy management, trying to identify research gaps and future directions. Overall, several converging lines of evidence implicate TRPV1 channel as a potentially attractive target in epilepsy research but more studies are needed to exploit the possible role of TRPV1 in seizures/epilepsy and to evaluate the value of TRPV1 ligands as candidates for new antiseizure drugs.
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Affiliation(s)
- Katarzyna Socała
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, Lublin PL 20-033, Poland.
| | - Marcin Jakubiec
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Cracow PL 30-688, Poland
| | - Michał Abram
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Cracow PL 30-688, Poland
| | - Jakub Mlost
- Department of Neurochemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, Cracow PL 31-343, Poland
| | - Katarzyna Starowicz
- Department of Neurochemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, Cracow PL 31-343, Poland
| | - Rafał M Kamiński
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Cracow PL 30-688, Poland
| | - Katarzyna Ciepiela
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Cracow PL 30-688, Poland; Selvita S.A., Bobrzyńskiego 14, Cracow PL 30-348, Poland
| | - Marta Andres-Mach
- Department of Experimental Pharmacology, Institute of Rural Health, Jaczewskiego 2, Lublin PL 20-090, Poland
| | - Mirosław Zagaja
- Department of Experimental Pharmacology, Institute of Rural Health, Jaczewskiego 2, Lublin PL 20-090, Poland
| | - Cameron S Metcalf
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT 84112, USA
| | - Przemysław Zawadzki
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Cracow PL 30-688, Poland
| | - Piotr Wlaź
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, Lublin PL 20-033, Poland
| | - Krzysztof Kamiński
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Cracow PL 30-688, Poland
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MO X, CHEN Y, YIN Q, CHEN H, BAN Q, LI J, CHEN S, YAO J. Transient receptor potential vanilloid 1 involved in the analgesic effects of total flavonoids extracted from Longxuejie (). J TRADIT CHIN MED 2024; 44:437-447. [PMID: 38767627 PMCID: PMC11077159 DOI: 10.19852/j.cnki.jtcm.20240423.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 07/06/2023] [Indexed: 05/22/2024]
Abstract
OBJECTIVE To evaluate the analgesic effects of total flavonoids of Longxuejie (Resina Dracaenae Cochinchinensis) (TFDB) and explore the possible analgesic mechanism associated with transient receptor potential vanilloid 1 (TRPV1). METHODS Whole-cell patch clamp technique was used to observe the effects of TFDB on capsaicin-induced TRPV1 currents. Rat experiments in vivo were used to observe the analgesic effects of TFDB. Western blot and immunofluorescence experiments were used to test the change of TRPV1 expression in DRG neurons induced by TFDB. RESULTS Results showed that TFDB inhibited capsaicin-induced TRPV1 receptor currents in acutely isolated dorsal root ganglion (DRG) neurons of rats and the half inhibitory concentration was (16.7 ± 1.6) mg/L. TFDB (2-20 mg/kg) showed analgesic activity in the phase Ⅱ of formalin test and (0.02-2 mg per paw) reduced capsaicin-induced licking times of rats. TFDB (20 mg/kg) was fully efficacious on complete Freund's adjuvant (CFA)-induced inflammatory thermal hyperalgesia and capsaicin could weaken the analgesic effects. The level of TRPV1 expressions of DRG neurons was also decreased in TFDB-treated CFA-inflammatory pain rats. CONCLUSION All these results indicated that the analgesic effect of TFDB may contribute to their modulations on both function and expression of TRPV1 channels in DRG neurons.
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Affiliation(s)
- Xiaoqiang MO
- 1 Department of Stomatology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
- 2 College of General Practitioners, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Yating CHEN
- 3 College of Biomedical Engineering, South-Central Minzu University, Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, Wuhan 430074, China
| | - Qian YIN
- 3 College of Biomedical Engineering, South-Central Minzu University, Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, Wuhan 430074, China
| | - Haibo CHEN
- 1 Department of Stomatology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Qiang BAN
- 1 Department of Stomatology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Jun LI
- 4 College of Pharmacy, South-Central Minzu University, Wuhan 430074, China
| | - Su CHEN
- 3 College of Biomedical Engineering, South-Central Minzu University, Key Laboratory of Cognitive Science of State Ethnic Affairs Commission, Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, Wuhan 430074, China
| | - Jinguang YAO
- 1 Department of Stomatology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
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Akhilesh, Uniyal A, Mehta A, Tiwari V. Combination chemotherapy in rodents: a model for chemotherapy-induced neuropathic pain and pharmacological screening. Metab Brain Dis 2024; 39:43-65. [PMID: 37991674 DOI: 10.1007/s11011-023-01315-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/09/2023] [Indexed: 11/23/2023]
Abstract
Chemotherapy-induced neuropathic pain (CINP) remains a therapeutic challenge, with no US-FDA approved drugs or effective treatments available. Despite significant progress in unravelling the pathophysiology of CINP, the clinical translation of this knowledge into tangible outcome remains elusive. Here, we employed behavioural and pharmacological approaches to establish and validate a novel combination-based chemotherapeutic model of peripheral neuropathy. Male Sprague Dawley rats were subjected to chemotherapy administration followed by assessment of pain behaviour at different time-points post-chemotherapy. Paclitaxel-treated animals displayed an enhanced thermal and mechanical hypersensitivity from day four onwards which continued till day thirty-five post last paclitaxel injection. Notably, rats subjected to combination chemotherapy, displayed prolonged hypersensitivity that emerged on day four and persisted until day fifty-six. RT-PCR analysis revealed significant upregulation in DRG and spinal mRNA expressions of TRP channels (TRPA1, TRPV1, & TRPM8), pro-inflammatory cytokines (TNF-α & IL-1β) and neuropeptides, Substance P and CGRP in both the pain models. Interestingly, the combination chemotherapy model demonstrated a significant increase in DRG and spinal NR2B expressions compared to rats solely treated with paclitaxel. Pharmacological investigations revealed that gabapentin treatment substantially mitigates pain hypersensitivity in both the combined chemotherapy and paclitaxel-administered groups, with the simultaneous reversal of cellular and molecular changes observed in the lumbar DRG and spinal cord of rats. The findings from this study suggests that combination chemotherapy model exhibits heightened and prolonged hypersensitivity in comparison to the conventional paclitaxel-induced neuropathic pain model. This model not only recapitulates clinical biomarkers of neuropathy but also presents a potential alternative platform for screening analgesic drugs targeted at CINP.
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Affiliation(s)
- Akhilesh
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh, 221005, India
| | - Ankit Uniyal
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh, 221005, India
| | - Anuj Mehta
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh, 221005, India
| | - Vinod Tiwari
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh, 221005, India.
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5
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Al-Romaiyan A, Barakat A, Jose L, Masocha W. An aqueous Commiphora myrrha extract ameliorates paclitaxel-induced peripheral neuropathic pain in mice. Front Pharmacol 2023; 14:1295096. [PMID: 38186647 PMCID: PMC10768035 DOI: 10.3389/fphar.2023.1295096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/30/2023] [Indexed: 01/09/2024] Open
Abstract
Background: Chemotherapy-induced neuropathic pain (CINP) is a debilitating side effect in individuals undergoing cancer treatment. Treatment of CINP with the current available classes of drugs is limited and often yields unsatisfactory results. Finding therapeutic alternatives of plant origin could provide a new way for the management of CINP. Commiphora myrrha (CM) resin extract has been reported to have anti-inflammatory and analgesic activities, but the effect of CM on neuropathic pain is yet to be investigated in CINP. Objectives: The aim of this study was to investigate the antinociceptive effect of CM extract in a mouse model of paclitaxel-induced neuropathic pain (PINP). Methods: The effects of CM on thermal hyperalgesia and mechanical allodynia were assessed in female BALB/c mice with PINP using a hot plate and a plantar aesthesiometer, respectively. Motor coordination was evaluated using a rotarod apparatus. The involvement of transient receptor potential vanilloid channel 1 (TRPV1) in CM actions was investigated using a capsaicin (a TRPV1 agonist)-induced nociception test. The genetic expression of Trpv1, Nrf2, Sod2, and Hmox1 was assessed using real-time PCR, while protein expression of TRPV1, Iba-1, and CD11b was assessed using Wes™. Results: Administration of CM to mice with established PINP produced a dose-dependent reduction in thermal hyperalgesia. Prophylactic treatment of mice with CM prevented the development of paclitaxel-induced thermal hyperalgesia and mechanical allodynia. CM did not change the motor coordination of mice, as the reaction latency and the rotational velocity of animals pretreated with CM extract were similar to those of animals pretreated with vehicle. CM significantly decreased the number and duration of the flick responses following capsaicin injection into the dorsal surface of the hind paw of mice. The protein expression of TRPV1 was upregulated in the spinal cord of paclitaxel-treated animals compared to vehicle-only-treated control animals, while CM-treated animals had values similar to vehicle-only-treated control animals. The mRNA expression of Nrf2, a major antioxidant transcription factor, was upregulated in the paw skin of mice treated with CM compared to those treated with paclitaxel alone. Conclusion: These results indicate that CM may both treat established and prevent the development of paclitaxel-induced thermal hyperalgesia and mechanical allodynia without any impairment in the motor activity of mice. CM may mediate its action through the peripheral inhibition of TRPV1 channel activity, restoration of normal TRPV1 protein expression in the spinal cord, and elevation of cellular antioxidant defenses. CM has the potential to be used as a therapeutic alternative to treat CINP.
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Affiliation(s)
- Altaf Al-Romaiyan
- Department of Pharmacology and Therapeutics, College of Pharmacy, Kuwait University, Kuwait
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6
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Sałat K, Zaręba P, Awtoniuk M, Sałat R. Naturally Inspired Molecules for Neuropathic Pain Inhibition-Effect of Mirogabalin and Cebranopadol on Mechanical and Thermal Nociceptive Threshold in Mice. Molecules 2023; 28:7862. [PMID: 38067591 PMCID: PMC10708129 DOI: 10.3390/molecules28237862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Neuropathic pain is drug-resistant to available analgesics and therefore novel treatment options for this debilitating clinical condition are urgently needed. Recently, two drug candidates, namely mirogabalin and cebranopadol have become a subject of interest because of their potential utility as analgesics for chronic pain treatment. However, they have not been investigated thoroughly in some types of neuropathic pain, both in humans and experimental animals. METHODS This study used the von Frey test, the hot plate test and the two-plate thermal place preference test supported by image analysis and machine learning to assess the effect of intraperitoneal mirogabalin and subcutaneous cebranopadol on mechanical and thermal nociceptive threshold in mouse models of neuropathic pain induced by streptozotocin, paclitaxel and oxaliplatin. RESULTS Mirogabalin and cebranopadol effectively attenuated tactile allodynia in models of neuropathic pain induced by streptozotocin and paclitaxel. Cebranopadol was more effective than mirogabalin in this respect. Both drugs also elevated the heat nociceptive threshold in mice. In the oxaliplatin model, cebranopadol and mirogabalin reduced cold-exacerbated pain. CONCLUSIONS Since mirogabalin and cebranopadol are effective in animal models of neuropathic pain, they seem to be promising novel therapies for various types of neuropathic pain in patients, in particular those who are resistant to available analgesics.
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Affiliation(s)
- Kinga Sałat
- Department of Pharmacodynamics, Faculty of Pharmacy, Jagiellonian University, 9 Medyczna St., 30-688 Krakow, Poland
| | - Paula Zaręba
- Chair of Pharmaceutical Chemistry, Faculty of Pharmacy, Jagiellonian University, 9 Medyczna St., 30-688 Krakow, Poland;
| | - Michał Awtoniuk
- Institute of Mechanical Engineering, Warsaw University of Life Sciences, 166 Nowoursynowska St., 02-787 Warsaw, Poland;
| | - Robert Sałat
- Faculty of Electrical and Computer Engineering, Cracow University of Technology, 24 Warszawska St., 31-155 Krakow, Poland;
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Dent JO, Segal JP, Brécier A, Gowdy HGM, Dubois RM, Bannerman CA, Halievski K, Silva JR, Ghasemlou N. Advanced Dynamic Weight Bearing as an Observer-independent Measure of Hyperacute Hypersensitivity in Mice. Can J Pain 2023; 7:2249060. [PMID: 37885834 PMCID: PMC10599184 DOI: 10.1080/24740527.2023.2249060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 07/16/2023] [Indexed: 10/28/2023]
Abstract
Background Standard methods assessing pain in rodents are often observer dependent, potentially resulting in biased outcomes. Advanced dynamic weight bearing (ADWB) offers an observer-independent approach that can provide objective, reliable data in preclinical pain research. Aims The aim of this study was to characterize the use of ADWB in assessing murine responses to allyl isothiocyanate (AITC)-induced hyperacute hypersensitivity and identify best practices for use of the device. Methods Male C57BL/6J mice received intraplantar injections of saline or 0.1% AITC solution and were assessed using the ADWB system; simultaneous observer-dependent durations of paw licking and biting were measured. ADWB data were analyzed using the proprietary software from Bioseb and correlated to observer-dependent results, with parameters assessed to optimize data collected. Results ADWB detected pain-directed changes in weight and surface area distribution in AITC-treated mice, with paw weight and surface area placement correlating to paw licking and biting. Optimization of adjustable threshold parameters allowed for reduced coefficients of variability and increased duration of validated data. Conclusions The ADWB assay provides an efficient and unbiased measure of chemical-induced hyperacute hypersensitivity in mice. ADWB detection parameters influence amount of validated data and variability, a consideration for data analysis in future studies.
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Affiliation(s)
- Jayne O. Dent
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Julia P. Segal
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Aurélie Brécier
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
- Department of Anesthesiology & Perioperative Medicine, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Hailey G. M. Gowdy
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Rosalin M. Dubois
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Courtney A. Bannerman
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Katherine Halievski
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Jaqueline R. Silva
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
- Department of Anesthesiology & Perioperative Medicine, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Nader Ghasemlou
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Ontario, Canada
- Department of Anesthesiology & Perioperative Medicine, Kingston Health Sciences Centre, Kingston, Ontario, Canada
- Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada
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Aguiar DD, da Costa Oliveira C, Fonseca FCS, de Almeida DL, Campos Pereira WV, Guimarães FS, Perez AC, Duarte IDG, Romero TRL. Peripherally injected canabidiol reduces neuropathic pain in mice: Role of the 5-HT 1A and TRPV1 receptors. Biochem Biophys Res Commun 2023; 660:58-64. [PMID: 37068389 DOI: 10.1016/j.bbrc.2023.04.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/10/2023] [Indexed: 04/19/2023]
Abstract
Cannabidiol (CBD) is the most abundant non-psychoactive component found in plants of the genus Cannabis. Its analgesic effect for the treatment of neuropathy has been widely studied. However, little is known about its effects in the acute treatment when Cannabidiol is administered peripherally. Because of that, this research was aimed to evaluate the antinociceptive effects of the CBD when administered peripherally for the treatment of acute neuropathic pain and check the involvement of the 5-HT1A and the TRPV1 receptors in this event. Neuropathic pain was induced with the constriction of the sciatic nerve while the nociceptive threshold was measured using the pressure test of the mouse paw. The technique used proved to be efficient to induce neuropathy, and the CBD (5, 10 and 30 μg/paw) induced the antinociception in a dosage-dependent manner. The dosage used that induced a more potent effect (30 μg/paw), did not induce a systemic response, as demonstrated by both the motor coordination assessment test (RotaRod) and the antinociceptive effect restricted to the paw treated with CBD. The administration of NAN-190 (10 μg/paw), a selective 5-HT1A receptor antagonist, and SB-366791 (16 μg/paw), a selective TRPV1 antagonist, partially reversed the CBD-induced antinociception. The results of the research suggest that the CBD produces the peripheral antinociception during the acute treatment of the neuropathic pain and it partially involved the participation of the 5-HT1A and TRPV1 receptors.
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Affiliation(s)
- Danielle Diniz Aguiar
- Department of Pharmacology, Institute of Biological Sciences, UFMG, Belo Horizonte, MG, Brazil
| | | | | | | | | | | | - Andrea Castro Perez
- Department of Pharmacology, Institute of Biological Sciences, UFMG, Belo Horizonte, MG, Brazil
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Transient Receptor Potential Channels: Important Players in Ocular Pain and Dry Eye Disease. Pharmaceutics 2022; 14:pharmaceutics14091859. [PMID: 36145607 PMCID: PMC9506338 DOI: 10.3390/pharmaceutics14091859] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/26/2022] [Accepted: 08/26/2022] [Indexed: 11/20/2022] Open
Abstract
Dry eye disease (DED) is a multifactorial disorder in which the eyes respond to minor stimuli with abnormal sensations, such as dryness, blurring, foreign body sensation, discomfort, irritation, and pain. Corneal pain, as one of DED’s main symptoms, has gained recognition due to its increasing prevalence, morbidity, and the resulting social burden. The cornea is the most innervated tissue in the body, and the maintenance of corneal integrity relies on a rich density of nociceptors, such as polymodal nociceptor neurons, cold thermoreceptor neurons, and mechano-nociceptor neurons. Their sensory responses to different stimulating forces are linked to the specific expression of transient receptor potential (TRP) channels. TRP channels are a group of unique ion channels that play important roles as cellular sensors for various stimuli. These channels are nonselective cation channels with variable Ca2+ selectivity. TRP homologs are a superfamily of 28 different members that are subdivided into 7 different subfamilies based on differences in sequence homology. Many of these subtypes are expressed in the eye on both neuronal and non-neuronal cells, where they affect various stress-induced regulatory responses essential for normal vision maintenance. This article reviews the current knowledge about the expression, function, and regulation of TRPs in ocular surface tissues. We also describe their implication in DED and ocular pain. These findings contribute to evidence suggesting that drug-targeting TRP channels may be of therapeutic benefit in the clinical setting of ocular pain.
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Pathophysiology of Nociception and Rare Genetic Disorders with Increased Pain Threshold or Pain Insensitivity. PATHOPHYSIOLOGY 2022; 29:435-452. [PMID: 35997391 PMCID: PMC9397076 DOI: 10.3390/pathophysiology29030035] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/31/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
Pain and nociception are different phenomena. Nociception is the result of complex activity in sensory pathways. On the other hand, pain is the effect of interactions between nociceptive processes, and cognition, emotions, as well as the social context of the individual. Alterations in the nociceptive route can have different genesis and affect the entire sensorial process. Genetic problems in nociception, clinically characterized by reduced or absent pain sensitivity, compose an important chapter within pain medicine. This chapter encompasses a wide range of very rare diseases. Several genes have been identified. These genes encode the Nav channels 1.7 and 1.9 (SCN9A, and SCN11A genes, respectively), NGFβ and its receptor tyrosine receptor kinase A, as well as the transcription factor PRDM12, and autophagy controllers (TECPR2). Monogenic disorders provoke hereditary sensory and autonomic neuropathies. Their clinical pictures are extremely variable, and a precise classification has yet to be established. Additionally, pain insensitivity is described in diverse numerical and structural chromosomal abnormalities, such as Angelman syndrome, Prader Willy syndrome, Chromosome 15q duplication syndrome, and Chromosome 4 interstitial deletion. Studying these conditions could be a practical strategy to better understand the mechanisms of nociception and investigate potential therapeutic targets against pain.
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Villalba‐Riquelme E, de la Torre‐Martínez R, Fernández‐Carvajal A, Ferrer‐Montiel A. Paclitaxel in vitro reversibly sensitizes the excitability of IB4(-) and IB4(+) sensory neurons from male and female rats. Br J Pharmacol 2022; 179:3693-3710. [PMID: 35102580 PMCID: PMC9311666 DOI: 10.1111/bph.15809] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 01/03/2022] [Accepted: 01/23/2022] [Indexed: 11/27/2022] Open
Affiliation(s)
- Eva Villalba‐Riquelme
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE)Universitas Miguel HernándezElcheSpain
| | | | - Asia Fernández‐Carvajal
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE)Universitas Miguel HernándezElcheSpain
| | - Antonio Ferrer‐Montiel
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE)Universitas Miguel HernándezElcheSpain
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Jesus CHA, Scarante FF, Schreiber AK, Gasparin AT, Redivo DDB, Rosa ES, Cunha JMD. Comparative study of cold hyperalgesia and mechanical allodynia in two animal models of neuropathic pain: different etiologies and distinct pathophysiological mechanisms. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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13
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Bianchini G, Tomassetti M, Lillini S, Sirico A, Bovolenta S, Za L, Liberati C, Novelli R, Aramini A. Discovery of Novel TRPM8 Blockers Suitable for the Treatment of Somatic and Ocular Painful Conditions: A Journey through p Ka and LogD Modulation. J Med Chem 2021; 64:16820-16837. [PMID: 34762442 DOI: 10.1021/acs.jmedchem.1c01647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Transient receptor potential melastatin 8 (TRPM8) is crucially involved in pain modulation and perception, and TRPM8 antagonists have been proposed as potential therapeutic approaches for pain treatment. Previously, we developed two TRPM8 antagonists and proposed them as drug candidates for topical and systemic pain treatment. Here, we describe the design and synthesis of these two TRPM8 antagonists (27 and 45) and the rational approach of modulation/replacement of bioisosteric chemical groups, which allowed us to identify a combination of narrow ranges of pKa and LogD values that were crucial to ultimately optimize their potency and metabolic stability. Following the same approach, we then pursued the development of new TRPM8 antagonists suitable for the topical treatment of ocular painful conditions and identified two new compounds (51 and 59), N-alkoxy amide derivatives, that can permeate across ocular tissue and reduce the behavioral responses induced by the topical ocular menthol challenge in vivo.
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Affiliation(s)
- Gianluca Bianchini
- Research and Early Development, Dompé Farmaceutici S.p.A., Via Campo di Pile, 67100 L'Aquila, Italy
| | - Mara Tomassetti
- Research and Early Development, Dompé Farmaceutici S.p.A., Via De Amicis 95, 80131 Napoli, Italy
| | - Samuele Lillini
- Research and Early Development, Dompé Farmaceutici S.p.A., Via De Amicis 95, 80131 Napoli, Italy
| | - Anna Sirico
- Research and Early Development, Dompé Farmaceutici S.p.A., Via De Amicis 95, 80131 Napoli, Italy
| | | | - Lorena Za
- Axxam S.p.A, Via Meucci 3, 20091 Bresso, Italy
| | | | - Rubina Novelli
- Research and Early Development, Dompé Farmaceutici S.p.A., Via Santa Lucia 6, 20122 Milano, Italy
| | - Andrea Aramini
- Research and Early Development, Dompé Farmaceutici S.p.A., Via Campo di Pile, 67100 L'Aquila, Italy
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14
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Matsushita Y, Manabe M, Kitagawa I, Higuchi M, Hosaka YZ, Kitamura N. Inhibition of transient receptor potential vanilloid type 1 through α 2 adrenergic receptors at peripheral nerve terminals relieves pain. J Vet Med Sci 2021; 83:1570-1581. [PMID: 34470979 PMCID: PMC8569874 DOI: 10.1292/jvms.21-0429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The activation of α2 adrenergic receptors contributes to analgesia not only in
the central nervous system but also in the peripheral nervous system. We reported that
noradrenaline inhibits the activity of transient receptor potential vanilloid 1 (TRPV1)
evoked by capsaicin through α2 receptors in cultured rat dorsal root ganglion
(DRG) neurons. However, it is unclear whether activation of TRPV1 expressed in peripheral
nerve terminals is inhibited by α2 receptors and whether this phenomenon
contributes to analgesia. Therefore, we examined effects of clonidine, an α2
receptor agonist, on several types of nociceptive behaviors, which may be caused by TRPV1
activity, and subtypes of α2 receptors expressed with TRPV1 in primary sensory
neurons in rats. Capsaicin injected into hind paws evoked nociceptive behaviors and
clonidine preinjected into the same site inhibited capsaicin-evoked responses. This
inhibition was not observed when clonidine was injected into the contralateral hind paws.
Preinjection of clonidine into the plantar surface of ipsilateral, but not contralateral,
hind paws reduced the sensitivity to heat stimuli. Clonidine partially reduced
formalin-evoked responses when it was preinjected into ipsilateral hind paws. The
expression level of α2C receptor mRNA quantified by real-time PCR was highest
followed by those of α2A and α2B receptors in DRGs. α2A
and α2C receptor-like immunoreactivities were detected with TRPV1-like
immunoreactivities in the same neurons. These results suggest that TRPV1 and α2
receptors are coexpressed in peripheral nerve terminals and that the functional
association between these two molecules causes analgesia.
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Affiliation(s)
- Yumi Matsushita
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan.,Laboratory of Veterinary Physiology, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Miki Manabe
- Laboratory of Veterinary Physiology, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Issei Kitagawa
- Laboratory of Veterinary Physiology, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Masashi Higuchi
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan.,Laboratory of Veterinary Biochemistry, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Yoshinao Z Hosaka
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan.,Laboratory of Veterinary Anatomy, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Naoki Kitamura
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8511, Japan.,Laboratory of Veterinary Physiology, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
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15
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Vermeer CJC, Hiensch AE, Cleenewerk L, May AM, Eijkelkamp N. Neuro-immune interactions in paclitaxel-induced peripheral neuropathy. Acta Oncol 2021; 60:1369-1382. [PMID: 34313190 DOI: 10.1080/0284186x.2021.1954241] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Paclitaxel is a taxane-based chemotherapeutic agent used as a treatment in breast cancer. There is no effective prevention or treatment strategy for the most common side effect of peripheral neuropathy. In this manuscript, we reviewed the molecular mechanisms that contribute to paclitaxel-induced peripheral neuropathy (PIPN) with an emphasis on immune-related processes. METHODS A systematic search of the literature was conducted in PubMed, EMBASE and Cochrane Library. The SYRCLE's risk of bias tool was used to assess internal validity. RESULTS 156 studies conducted with rodent models were included. The risk of bias was high due to unclear methodology. Paclitaxel induces changes in myelinated axons, mitochondrial dysfunction, and mechanical hypersensitivity by affecting ion channels expression and function and facilitating spinal transmission. Paclitaxel-induced inflammatory responses are important contributors to PIPN. CONCLUSION Immune-related processes are an important mechanism contributing to PIPN. Studies in humans that validate these mechanistic data are highly needed to facilitate the development of therapeutic strategies.
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Affiliation(s)
- Cornelia J. C. Vermeer
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Anouk E. Hiensch
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Laurence Cleenewerk
- Center of Translational Immunology (CTI), University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Anne M. May
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Niels Eijkelkamp
- Center of Translational Immunology (CTI), University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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16
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Singh R, Adhya P, Sharma SS. Redox-sensitive TRP channels: a promising pharmacological target in chemotherapy-induced peripheral neuropathy. Expert Opin Ther Targets 2021; 25:529-545. [PMID: 34289785 DOI: 10.1080/14728222.2021.1956464] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Chemotherapy-induced peripheral neuropathy (CIPN) and its related pain is a major side effect of certain chemotherapeutic agents used in cancer treatment. Available analgesics are mostly symptomatic, and on prolonged treatment, patients become refractive to them. Hence, the development of improved therapeutics that act on novel therapeutic targets is necessary. Potential targets include the redox-sensitive TRP channels [e.g. TRPA1, TRPC5, TRPC6, TRPM2, TRPM8, TRPV1, TRPV2, and TRPV4] which are activated under oxidative stress associated with CIPN. AREAS COVERED We have examined numerous neuropathy-inducing cancer chemotherapeutics and their pathophysiological mechanisms. Oxidative stress and its downstream targets, the redox-sensitive TRP channels, together with their potential pharmacological modulators, are discussed. Finally, we reflect upon the barriers to getting new therapeutic approaches into the clinic. The literature search was conducted in PubMed upto and including April 2021. EXPERT OPINION Redox-sensitive TRP channels are a promising target in CIPN. Pharmacological modulators of these channels have reduced pain in preclinical models and in clinical studies. Clinical scrutiny suggests that TRPA1, TRPM8, and TRPV1 are the most promising targets because of their pain-relieving potential. In addition to the analgesic effect, TRPV1 agonist-Capsaicin possesses a disease-modifying effect in CIPN through its restorative property in damaged sensory nerves.
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Affiliation(s)
- Ramandeep Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Mohali, Punjab, India
| | - Pratik Adhya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Mohali, Punjab, India
| | - Shyam Sunder Sharma
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Mohali, Punjab, India
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17
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Gryzło B, Zaręba P, Malawska K, Mazur G, Rapacz A, Ła̧tka K, Höfner GC, Latacz G, Bajda M, Sałat K, Wanner KT, Malawska B, Kulig K. Novel Functionalized Amino Acids as Inhibitors of GABA Transporters with Analgesic Activity. ACS Chem Neurosci 2021; 12:3073-3100. [PMID: 34347423 PMCID: PMC8397297 DOI: 10.1021/acschemneuro.1c00351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
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Neuropathic pain
resistance to pharmacotherapy has encouraged researchers
to develop effective therapies for its treatment. γ-Aminobutyric
acid (GABA) transporters 1 and 4 (mGAT1 and mGAT4) have been increasingly
recognized as promising drug targets for neuropathic pain (NP) associated
with imbalances in inhibitory neurotransmission. In this context,
we designed and synthesized new functionalized amino acids as inhibitors
of GABA uptake and assessed their activities toward all four mouse
GAT subtypes (mGAT1–4). According to the obtained results,
compounds 2RS,4RS-39c (pIC50 (mGAT4) = 5.36), 50a (pIC50 (mGAT2) = 5.43), and 56a (with moderate subtype selectivity
that favored mGAT4, pIC50 (mGAT4) = 5.04) were of particular
interest and were therefore evaluated for their cytotoxic and hepatotoxic
effects. In a set of in vivo experiments, both compounds 50a and 56a showed antinociceptive properties
in three rodent models of NP, namely, chemotherapy-induced neuropathic
pain models (the oxaliplatin model and the paclitaxel model) and the
diabetic neuropathic pain model induced by streptozotocin; however
compound 56a demonstrated predominant activity. Since
impaired motor coordination is also observed in neuropathic pain conditions,
we have pointed out that none of the test compounds induced motor
deficits in the rotarod test.
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Affiliation(s)
- Beata Gryzło
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Paula Zaręba
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Katarzyna Malawska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Gabriela Mazur
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Anna Rapacz
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Kamil Ła̧tka
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Georg C. Höfner
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München Butenandtstraße 5-13, 81377 Munich, Germany
| | - Gniewomir Latacz
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Marek Bajda
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Kinga Sałat
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Klaus T. Wanner
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München Butenandtstraße 5-13, 81377 Munich, Germany
| | - Barbara Malawska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Katarzyna Kulig
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
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18
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Khan A, Shal B, Khan AU, Ullah R, Baig MW, ul Haq I, Seo EK, Khan S. Suppression of TRPV1/TRPM8/P2Y Nociceptors by Withametelin via Downregulating MAPK Signaling in Mouse Model of Vincristine-Induced Neuropathic Pain. Int J Mol Sci 2021; 22:ijms22116084. [PMID: 34199936 PMCID: PMC8200233 DOI: 10.3390/ijms22116084] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/27/2021] [Accepted: 05/30/2021] [Indexed: 02/06/2023] Open
Abstract
Vincristine (VCR) is a widely used chemotherapy drug that induced peripheral painful neuropathy. Yet, it still lacks an ideal therapeutic strategy. The transient receptor potential (TRP) channels, purinergic receptor (P2Y), and mitogen-activated protein kinase (MAPK) signaling play a crucial role in the pathogenesis of neuropathic pain. Withametelin (WMT), a potential Phytosteroid isolated from datura innoxa, exhibits remarkable neuroprotective properties. The present investigation was designed to explore the effect of withametelin on VCR-induced neuropathic pain and its underlying molecular mechanism. Initially, the neuroprotective potential of WMT was confirmed against hydrogen peroxide (H2O2)-induced PC12 cells. To develop potential candidates for neuropathic pain treatment, a VCR-induced neuropathic pain model was established. Vincristine (75 μg/kg) was administered intraperitoneally (i.p.) for 10 consecutive days (day 1-10) for the induction of neuropathic pain. Gabapentin (GBP) (60 mg/kg, i.p.) and withametelin (0.1 and 1 mg/kg i.p.) treatments were given after the completion of VCR injection on the 11th day up to 21 days. The results revealed that WMT significantly reduced VCR-induced pain hypersensitivity, including mechanical allodynia, cold allodynia, and thermal hyperalgesia. It reversed the VCR-induced histopathological changes in the brain, spinal cord, and sciatic nerve. It inhibited VCR-induced changes in the biochemical composition of the myelin sheath of the sciatic nerve. It markedly downregulated the expression levels of TRPV1 (transient receptor potential vanilloid 1); TRPM8 (Transient receptor potential melastatin 8); and P2Y nociceptors and MAPKs signaling, including ERK (Extracellular Signal-Regulated Kinase), JNK (c-Jun N-terminal kinase), and p-38 in the spinal cord. It suppressed apoptosis by regulating Bax (Bcl2-associated X-protein), Bcl-2 (B-cell-lymphoma-2), and Caspase-3 expression. It considerably attenuated inflammatory cytokines, oxidative stress, and genotoxicity. This study suggests that WMT treatment suppressed vincristine-induced neuropathic pain by targeting the TRPV1/TRPM8/P2Y nociceptors and MAPK signaling.
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Affiliation(s)
- Adnan Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.K.); (B.S.); (A.U.K.); (M.W.B.); (I.u.H.)
| | - Bushra Shal
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.K.); (B.S.); (A.U.K.); (M.W.B.); (I.u.H.)
| | - Ashraf Ullah Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.K.); (B.S.); (A.U.K.); (M.W.B.); (I.u.H.)
| | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar 25120, Pakistan;
| | - Muhammad Waleed Baig
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.K.); (B.S.); (A.U.K.); (M.W.B.); (I.u.H.)
| | - Ihsan ul Haq
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.K.); (B.S.); (A.U.K.); (M.W.B.); (I.u.H.)
| | - Eun Kyoung Seo
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
- Correspondence: (E.K.S.); (S.K.); Tel.: +82-2-3277-3047 (E.K.S.); +92-51-9064-4056 (S.K.)
| | - Salman Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.K.); (B.S.); (A.U.K.); (M.W.B.); (I.u.H.)
- Correspondence: (E.K.S.); (S.K.); Tel.: +82-2-3277-3047 (E.K.S.); +92-51-9064-4056 (S.K.)
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19
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Sultana A, Singla RK, He X, Sun Y, Alam MS, Shen B. Topical Capsaicin for the Treatment of Neuropathic Pain. Curr Drug Metab 2021; 22:198-207. [PMID: 33198614 DOI: 10.2174/1389200221999201116143701] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/05/2020] [Accepted: 08/09/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Neuropathic pain (NP) is an egregious problem worldwide. Due to the side-effects of oral drugs, drugs delivered directly to the affected area of pain are preferred. OBJECTIVE Capsaicin, a chemical compound isolated from chili peppers, is used as an analgesic in topical ointments and dermal patches to alleviate pain. Objective of the study is to review the application and functionality of topical capsaicin in treatment of neuropathic pain. DATA SOURCES To systematically review capsaicin's functions on NP, we retrieved articles from the PubMed database published in the last ten years. STUDY ELIGIBILITY CRITERIA The inclusion criteria were capsaicin and the use of capsaicin for the treatment of NP; on the other hand, articles were excluded according to the mentioned criteria such as abstracts, articles written in any language other than English, incomplete articles, and conference papers. PARTICIPANTS AND INTERVENTIONS Out of 265 articles, 108 articles were selected after filtering through the inclusion and exclusion criteria. The data and knowledge currently existing for capsaicin treatment in NP are summarized. RESULTS This review indicates that capsaicin effectively improves NP treatment without affecting the motor and large nerve fibres involved in sensory function. Transient receptor potential channel vanilloid type 1 (TRPV1) is the capsaicin receptor expressed in central and peripheral terminals of a sensitive primary nerve cell. Conclusions and implications of key findings: Topical capsaicin has a sensible safety profile and is effective in reducing NP. Therefore, studies over the last decade suggest that capsaicin might be a potential drug for NP treatment.
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Affiliation(s)
- Adiba Sultana
- Center for Systems Biology, Soochow University, Suzhou, 215006, China
| | - Rajeev K Singla
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xuefei He
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yan Sun
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Md Shahin Alam
- Center for Systems Biology, Soochow University, Suzhou, 215006, China
| | - Bairong Shen
- Center for Systems Biology, Soochow University, Suzhou, 215006, China
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20
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Zhao YX, Yu XC, Gao JH, Yao MJ, Zhu B. Acupuncture for Paclitaxel-Induced Peripheral Neuropathy: A Review of Clinical and Basic Studies. J Pain Res 2021; 14:993-1005. [PMID: 33883931 PMCID: PMC8055287 DOI: 10.2147/jpr.s296150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/17/2021] [Indexed: 11/23/2022] Open
Abstract
Paclitaxel-induced peripheral neuropathy (PIPN) is a common and intractable side effect of the conventional chemotherapeutic agent paclitaxel. Acupuncture has been reported as an effective alternative therapy in treatment of PIPN in both basic studies and clinical trials. However, there is a lack of comprehensive surveys to summarize the action of acupuncture in management of PIPN. In this review, we briefly demonstrate the basic pathology of PIPN, which includes the activation of ion channels, mitochondrial dysfunction, disruption of axonal transport and also neuro-inflammatory involvement. Meanwhile, we review both the clinical and basic studies as an emphasis to give a general overview of the therapeutic effect of acupuncture against PIPN. Finally, we summarize the current known mechanisms underlying the action of acupuncture against PIPN mainly at peripheral and spinal levels, which include various neurotransmitters, multiple receptors, different types of enzymes and molecules. In conclusion, acupuncture could be considered as a potential alternative therapy in treatment of PIPN, and further clinical and experimental studies are called for in the future.
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Affiliation(s)
- Yu-Xue Zhao
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
| | - Xiao-Chun Yu
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
| | - Jun-Hong Gao
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
| | - Ming-Jiang Yao
- Institute of Basic Medical Sciences, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, People's Republic of China.,Key Laboratory of Pharmacology of Chinese Materia Medica, Beijing, 100091, People's Republic of China
| | - Bing Zhu
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
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21
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Nazıroğlu M, Öz A, Yıldızhan K. Selenium and Neurological Diseases: Focus on Peripheral Pain and TRP Channels. Curr Neuropharmacol 2021; 18:501-517. [PMID: 31903884 PMCID: PMC7457405 DOI: 10.2174/1570159x18666200106152631] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/26/2019] [Accepted: 01/04/2020] [Indexed: 12/18/2022] Open
Abstract
Pain is a complex physiological process that includes many components. Growing evidence supports the idea that oxidative stress and Ca2+ signaling pathways participate in pain detection by neurons. The main source of endogenous reactive oxygen species (ROS) is mitochondrial dysfunction induced by membrane depolarization, which is in turn caused by Ca2+ influx into the cytosol of neurons. ROS are controlled by antioxidants, including selenium. Selenium plays an important role in the nervous system, including the brain, where it acts as a cofactor for glutathione peroxidase and is incorporated into selenoproteins involved in antioxidant defenses. It has neuroprotective effects through modulation of excessive ROS production, inflammation, and Ca2+ overload in several diseases, including inflammatory pain, hypersensitivity, allodynia, diabetic neuropathic pain, and nociceptive pain. Ca2+ entry across membranes is mediated by different channels, including transient receptor potential (TRP) channels, some of which (e.g., TRPA1, TRPM2, TRPV1, and TRPV4) can be activated by oxidative stress and have a role in the induction of peripheral pain. The results of recent studies indicate the modulator roles of selenium in peripheral pain through inhibition of TRP channels in the dorsal root ganglia of experimental animals. This review summarizes the protective role of selenium in TRP channel regulation, Ca2+ signaling, apoptosis, and mitochondrial oxidative stress in peripheral pain induction.
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Affiliation(s)
- Mustafa Nazıroğlu
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey.,Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey.,Drug Discovery Unit, BSN Health, Analysis and Innovation Ltd. Inc. Teknokent, Isparta, Turkey
| | - Ahmi Öz
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Kenan Yıldızhan
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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22
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Notartomaso S, Scarselli P, Mascio G, Liberatore F, Mazzon E, Mammana S, Gugliandolo A, Cruccu G, Bruno V, Nicoletti F, Battaglia G. N-Acetylcysteine causes analgesia in a mouse model of painful diabetic neuropathy. Mol Pain 2021; 16:1744806920904292. [PMID: 32009537 PMCID: PMC6997966 DOI: 10.1177/1744806920904292] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
N-Acetylcysteine, one of the most prescribed antioxidant drugs, enhances pain
threshold in rodents and humans by activating mGlu2 metabotropic glutamate
receptors. Here, we assessed the analgesic activity of N-acetylcysteine in the
streptozotocin model of painful diabetic neuropathy and examined the effect of
N-acetylcysteine on proteins that are involved in mechanisms of nociceptive
sensitization. Mice with blood glucose levels ≥250 mg/dl in response to a single
intraperitoneal (i.p.) injection of streptozotocin (200 mg/kg) were used for the
assessment of mechanical pain thresholds. Systemic treatment with
N-acetylcysteine (100 mg/kg, i.p., either single injection or daily injections
for seven days) caused analgesia in diabetic mice. N-acetylcysteine-induced
analgesia was abrogated by the Sxc− inhibitors, sulfasalazine (8 mg/kg, i.p.), erastin (30 mg/kg,
i.p.), and sorafenib (10 mg/kg, i.p.), or by the mGlu2/3 receptor antagonist,
LY341495 (1 mg/kg, i.p.). Repeated administrations of N-acetylcysteine in
diabetic mice reduced ERK1/2 phosphorylation in the dorsal region of the lumbar
spinal cord. The analgesic activity of N-acetylcysteine was occluded by the MEK
inhibitor, PD0325901 (25 mg/kg, i.p.), the TRPV1 channel blocker, capsazepine
(40 mg/kg, i.p.), or by a cocktail of NMDA and mGlu5 metabotropic glutamate
receptor antagonists (memantine, 25 mg/kg, plus MTEP, 5 mg/kg,
both i.p.). These findings offer the first demonstration that N-acetylcysteine
relieves pain associated with diabetic neuropathy and holds promise for the use
of N-acetylcysteine as an add-on drug in diabetic patients.
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Affiliation(s)
| | - Pamela Scarselli
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy
| | - Giada Mascio
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy
| | | | | | - Santa Mammana
- IRCCS Centro Neurolesi "Bonino-Pulejo", Messina, Italy
| | | | - Giorgio Cruccu
- Department of Human Neuroscience, Sapienza University, Rome, Italy
| | - Valeria Bruno
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy.,Department of Physiology and Pharmacology, Sapienza University, Rome, Italy
| | - Ferdinando Nicoletti
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy.,Department of Physiology and Pharmacology, Sapienza University, Rome, Italy
| | - Giuseppe Battaglia
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy.,Department of Physiology and Pharmacology, Sapienza University, Rome, Italy
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23
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Sullivan KA, Grant CV, Jordan KR, Vickery SS, Pyter LM. Voluntary wheel running ameliorates select paclitaxel chemotherapy-induced sickness behaviors and associated melanocortin signaling. Behav Brain Res 2021; 399:113041. [PMID: 33279635 PMCID: PMC7856259 DOI: 10.1016/j.bbr.2020.113041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/30/2020] [Accepted: 11/30/2020] [Indexed: 12/16/2022]
Abstract
While chemotherapy remains a common cancer treatment, it is associated with debilitating side effects (e.g., anorexia, weight loss, and fatigue) that adversely affect patient quality of life and increase mortality. However, the mechanisms underlying taxane chemotherapy-induced side effects, and effective treatments to ameliorate them, are not well-established. Here, we tested the longitudinal relationship between a clinically-relevant paclitaxel regimen, inflammation, and sickness behaviors (loss of body mass, anorexia, fever, and fatigue) in adult, female mice. Furthermore, we sought to identify the extent to which voluntary exercise (wheel running) attenuates paclitaxel-induced sickness behaviors and underlying central pathways. Body mass and food intake decreased following six doses of chemotherapy treatment relative to vehicle controls, lasting less than 5 days after the last dose. Paclitaxel treatment also transiently decreased locomotion (open field test), voluntary wheel running, home-cage locomotion, and core body temperature without affecting motor coordination (rotarod task). Circulating interleukin (IL)-6 and hypothalamic Il1b gene expression remained elevated in chemotherapy-treated mice at least 3 days after the last dose. Exercise intervention did not ameliorate fatigue or inflammation, but hastened recovery from paclitaxel-induced weight loss. Body mass recovery was associated with the wheel running-induced recovery of body composition, paclitaxel-induced alterations to hypothalamic melanocortin signaling, and associated peripheral circulating hormones (ghrelin and leptin). The present findings demonstrate the benefits of exercise on faster recovery from paclitaxel-induced body mass loss and deficits in melanocortin signaling and suggests the development of therapies targeting the melanocortin pathway to reduce paclitaxel-induced weight loss.
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Affiliation(s)
- Kyle A Sullivan
- Institute for Behavioral Medicine Research, Ohio State University, Columbus, OH, USA; James Comprehensive Cancer Center and Solove Research Institute, Ohio State University, Columbus, OH, USA; Department of Neuroscience, Ohio State University, Columbus, OH, USA
| | - Corena V Grant
- Institute for Behavioral Medicine Research, Ohio State University, Columbus, OH, USA
| | - Kelley R Jordan
- Institute for Behavioral Medicine Research, Ohio State University, Columbus, OH, USA
| | - Selina S Vickery
- Institute for Behavioral Medicine Research, Ohio State University, Columbus, OH, USA; James Comprehensive Cancer Center and Solove Research Institute, Ohio State University, Columbus, OH, USA
| | - Leah M Pyter
- Institute for Behavioral Medicine Research, Ohio State University, Columbus, OH, USA; James Comprehensive Cancer Center and Solove Research Institute, Ohio State University, Columbus, OH, USA; Department of Neuroscience, Ohio State University, Columbus, OH, USA; Department of Psychiatry and Behavioral Health, Ohio State University, Columbus, OH, USA.
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24
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Analgesic Efficacy of a Combination of Fentanyl and a Japanese Herbal Medicine " Yokukansan" in Rats with Acute Inflammatory Pain. MEDICINES 2020; 7:medicines7120075. [PMID: 33348580 PMCID: PMC7766210 DOI: 10.3390/medicines7120075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 01/09/2023]
Abstract
Background: Fentanyl can induce acute opioid tolerance and postoperative hyperalgesia when administered at a single high dose; thus, this study examined the analgesic efficacy of a combination of fentanyl and Yokukansan (YKS). Methods: Rats were divided into control, formalin-injected (FOR), YKS-treated+FOR (YKS), fentanyl-treated+FOR (FEN), and YKS+FEN+FOR (YKS+FEN) groups. Acute pain was induced via subcutaneous injection of formalin into the paw. The time engaged in pain-related behavior was measured. Results: In the early (0–10 min) and intermediate (10–20 min) phases, pain-related behavior in the YKS+FEN group was significantly inhibited compared with the FOR group. In the late phase (20–60 min), pain-related behavior in the FEN group was the longest and significantly increased compared with the YKS group. We explored the influence on the extracellular signal-regulated kinase (ERK) pathway in the spinal cord, and YKS suppressed the phosphorylated ERK expression, which may be related to the analgesic effect of YKS in the late phase. Conclusions: These findings suggest that YKS could reduce the use of fentanyl and combined use of YKS and fentanyl is considered clinically useful.
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25
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Oxytocin-Dependent Regulation of TRPs Expression in Trigeminal Ganglion Neurons Attenuates Orofacial Neuropathic Pain Following Infraorbital Nerve Injury in Rats. Int J Mol Sci 2020; 21:ijms21239173. [PMID: 33271955 PMCID: PMC7731199 DOI: 10.3390/ijms21239173] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 11/28/2020] [Accepted: 11/28/2020] [Indexed: 12/12/2022] Open
Abstract
We evaluated the mechanisms underlying the oxytocin (OXT)-induced analgesic effect on orofacial neuropathic pain following infraorbital nerve injury (IONI). IONI was established through tight ligation of one-third of the infraorbital nerve thickness. Subsequently, the head withdrawal threshold for mechanical stimulation (MHWT) of the whisker pad skin was measured using a von Frey filament. Trigeminal ganglion (TG) neurons innervating the whisker pad skin were identified using a retrograde labeling technique. OXT receptor-immunoreactive (IR), transient receptor potential vanilloid 1 (TRPV1)-IR, and TRPV4-IR TG neurons innervating the whisker pad skin were examined on post-IONI day 5. The MHWT remarkably decreased from post-IONI day 1 onward. OXT application to the nerve-injured site attenuated the decrease in MHWT from day 5 onward. TRPV1 or TRPV4 antagonism significantly suppressed the decrement of MHWT following IONI. OXT receptors were expressed in the uninjured and Fluoro-Gold (FG)-labeled TG neurons. Furthermore, there was an increase in the number of FG-labeled TRPV1-IR and TRPV4-IR TG neurons, which was inhibited by administering OXT. This inhibition was suppressed by co-administration with an OXT receptor antagonist. These findings suggest that OXT application inhibits the increase in TRPV1-IR and TRPV4-IR TG neurons innervating the whisker pad skin, which attenuates post-IONI orofacial mechanical allodynia.
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26
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Fakih D, Baudouin C, Réaux-Le Goazigo A, Mélik Parsadaniantz S. TRPM8: A Therapeutic Target for Neuroinflammatory Symptoms Induced by Severe Dry Eye Disease. Int J Mol Sci 2020; 21:E8756. [PMID: 33228217 PMCID: PMC7699525 DOI: 10.3390/ijms21228756] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/06/2020] [Accepted: 11/17/2020] [Indexed: 12/23/2022] Open
Abstract
Dry eye disease (DED) is commonly associated with ocular surface inflammation and pain. In this study, we evaluated the effectiveness of repeated instillations of transient receptor potential melastatin 8 (TRPM8) ion channel antagonist M8-B on a mouse model of severe DED induced by the excision of extra-orbital lacrimal and Harderian glands. M8-B was topically administered twice a day from day 7 until day 21 after surgery. Cold and mechanical corneal sensitivities and spontaneous ocular pain were monitored at day 21. Ongoing and cold-evoked ciliary nerve activities were next evaluated by electrophysiological multi-unit extracellular recording. Corneal inflammation and expression of genes related to neuropathic pain and inflammation were assessed in the trigeminal ganglion. We found that DED mice developed a cold allodynia consistent with higher TRPM8 mRNA expression in the trigeminal ganglion (TG). Chronic M8-B instillations markedly reversed both the corneal mechanical allodynia and spontaneous ocular pain commonly associated with persistent DED. M8-B instillations also diminished the sustained spontaneous and cold-evoked ciliary nerve activities observed in DED mice as well as inflammation in the cornea and TG. Overall, our study provides new insight into the effectiveness of TRPM8 blockade for alleviating corneal pain syndrome associated with severe DED, opening a new avenue for ocular pain management.
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Affiliation(s)
- Darine Fakih
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 rue Moreau, F-75012 Paris, France; (D.F.); (C.B.); (A.R.-L.G.)
- R&D Department, Laboratoires Théa, 12 rue Louis Biérot, F-63000 Clermont-Ferrand, France
| | - Christophe Baudouin
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 rue Moreau, F-75012 Paris, France; (D.F.); (C.B.); (A.R.-L.G.)
- CHNO des Quinze-Vingts, INSERM-DGOS CIC 1423, 17 rue Moreau, F-75012 Paris, France
- Department of Ophthalmology, Ambroise Paré Hospital, AP-HP, University of Versailles Saint-Quentin-en-Yvelines, 9 avenue Charles de Gaulle, F-92100 Boulogne-Billancourt, France
| | - Annabelle Réaux-Le Goazigo
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 rue Moreau, F-75012 Paris, France; (D.F.); (C.B.); (A.R.-L.G.)
| | - Stéphane Mélik Parsadaniantz
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 rue Moreau, F-75012 Paris, France; (D.F.); (C.B.); (A.R.-L.G.)
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27
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Abstract
The transient receptor potential vanilloid-1 (TRPV1) is a non-specific cation channel known for its sensitivity to pungent vanilloid compound (i.e. capsaicin) and noxious stimuli, including heat, low pH or inflammatory mediators. TRPV1 is found in the somatosensory system, particularly primary afferent neurons that respond to damaging or potentially damaging stimuli (nociceptors). Stimulation of TRPV1 evokes a burning sensation, reflecting a central role of the channel in pain. Pharmacological and genetic studies have validated TRPV1 as a therapeutic target in several preclinical models of chronic pain, including cancer, neuropathic, postoperative and musculoskeletal pain. While antagonists of TRPV1 were found to be a valuable addition to the pain therapeutic toolbox, their clinical use has been limited by detrimental side effects, such as hyperthermia. In contrast, capsaicin induces a prolonged defunctionalisation of nociceptors and thus opened the door to the development of a new class of therapeutics with long-lasting pain-relieving effects. Here we review the list of TRPV1 agonists undergoing clinical trials for chronic pain management, and discuss new indications, formulations or combination therapies being explored for capsaicin. While the analgesic pharmacopeia for chronic pain patients is ancient and poorly effective, modern TRPV1-targeted drugs could rapidly become available as the next generation of analgesics for a broad spectrum of pain conditions.
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Affiliation(s)
- Mircea Iftinca
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta, T2N 4N1, Canada
| | - Manon Defaye
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta, T2N 4N1, Canada
| | - Christophe Altier
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta, T2N 4N1, Canada.
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28
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Silva FCO, de Menezes JESA, Ferreira MKA, da Silva AW, Holanda CLA, Dos Reis Lima J, Campos AR, Evaristo FFV, Teixeira EH, Magalhães FEA, Bandeira PN, Dos Santos HS. Antinociceptive activity of 3β-6β-16β-trihydroxylup-20 (29)-ene triterpene isolated from Combretum leprosum leaves in adult zebrafish (Danio rerio). Biochem Biophys Res Commun 2020; 533:362-367. [PMID: 32962857 DOI: 10.1016/j.bbrc.2020.07.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 07/22/2020] [Indexed: 01/08/2023]
Abstract
Drugs used to treat pain are associated with adverse effects, increasing the search for new drugs as an alternative treatment for pain. Therefore, we evaluated the antinociceptive behavior and possible neuromodulation mechanisms of triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene (CLF-1) isolated from Combretum leprosum leaves in zebrafish. Zebrafish (n = 6/group) were pretreated with CLF-1 (0.1 or 0.3 or 1.0 mg/mL; i.p.) and underwent nociception behavior tests. The antinociceptive effect of CFL-1 was tested for modulation by opioid (naloxone), nitrergic (L-NAME), nitric oxide and guanylate cyclase synthesis inhibitor (methylene blue), NMDA (Ketamine), TRPV1 (ruthenium red), TRPA1 (camphor), or ASIC (amiloride) antagonists. The corneal antinociceptive effect of CFL-1 was tested for modulation by TRPV1 (capsazepine). The effect of CFL-1 on zebrafish locomotor behavior was evaluated with the open field test. The acute toxicity study was conducted. CLF-1 reduced nociceptive behavior and corneal in zebrafish without mortalities and without altering the animals' locomotion. Thus, CFL-1 presenting pharmacological potential for the treatment of acute pain and corneal pain, and this effect is modulated by the opioids, nitrergic system, NMDA receptors and TRP and ASIC channels.
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Affiliation(s)
- Francisca Crislândia Oliveira Silva
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Jane Eire Silva Alencar de Menezes
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Maria Kueirislene Amâncio Ferreira
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Antonio Wlisses da Silva
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Carlos Leone Alves Holanda
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Joyce Dos Reis Lima
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Adriana Rolim Campos
- Universidade de Fortaleza, Núcleo de Biologia Experimental (NUBEX), Fortaleza, Ceará, Brazil
| | | | - Edson Holanda Teixeira
- Universidade Federal do Ceará, Departamento de Patologia e Medicina Legal, Laboratório Integrado de Biomoléculas (LIBS), Fortaleza, Ceará, Brasil
| | - Francisco Ernani Alves Magalhães
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil; Universidade de Fortaleza, Núcleo de Biologia Experimental (NUBEX), Fortaleza, Ceará, Brazil; Universidade Estadual do Ceará, Departamento de Química, Laboratório de Bioprospecção de Produtos Naturais e Biotecnologia, Tauá, Ceará, Brazil
| | - Paulo Nogueira Bandeira
- Universidade Estadual Vale do Acaraú, Curso de Química, Sobral, Ceará, Brazil; Universidade Regional do Cariri, Departamento de Química Biológica, Crato, Ceará, Brazil
| | - Hélcio Silva Dos Santos
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil; Universidade Estadual Vale do Acaraú, Curso de Química, Sobral, Ceará, Brazil; Universidade Regional do Cariri, Departamento de Química Biológica, Crato, Ceará, Brazil.
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29
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Amirkhanloo F, Karimi G, Yousefi-Manesh H, Abdollahi A, Roohbakhsh A, Dehpour AR. The protective effect of modafinil on vincristine-induced peripheral neuropathy in rats: A possible role for TRPA1 receptors. Basic Clin Pharmacol Toxicol 2020; 127:405-418. [PMID: 32542990 DOI: 10.1111/bcpt.13454] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 01/05/2023]
Abstract
Vincristine (VCR) induces peripheral neuropathy. We aimed to assess the efficacy of modafinil on VCR-induced neuropathy in rats. Neuropathy was induced by intraperitoneal (i.p.) injections of VCR (0.1 mg/kg). Neuropathic groups received modafinil (5, 25 and 50 mg/kg); gabapentin (20 mg/kg); and a combination of modafinil (5 and 50 mg/kg) and gabapentin (20 mg/kg,). Then, electrophysiological, behavioural, biochemical and pathological evaluations were performed. Latencies of tail-flick and von Frey filament tests, motor nerve conduction velocity (MNCV) and excitation of nerve conduction were decreased. Moreover, the transient receptor potential cation channel ankyrin 1 (TRPA1) level was increased, while TRPV1 and N-Methyl-D-aspartate (NMDA) levels remained unchanged. Tumour necrosis factor-alpha (TNF-α) and interleukin-1beta (IL-1β) levels were markedly elevated. Pre-treatment with modafinil prevented sensorimotor neuropathy by raising latencies, MNCV and excitation, reducing TRPA1, TNF-α and IL-1β levels. Modafinil improved behavioural, electrophysiological and pathological disturbances. The results showed that TRPA1 has a more important role than NMDA and TRPV1, in VCR-induced neuropathic pain. In addition, inflammatory mediators, TNF-α and IL-1β, were involved. Further, the combination of modafinil and gabapentin improved the neuroprotective effect of gabapentin. So, modafinil might be a neuroprotective agent in the prevention of VCR-induced neuropathy.
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Affiliation(s)
- Fatemeh Amirkhanloo
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Karimi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hasan Yousefi-Manesh
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Abdollahi
- Department of Pathology, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Roohbakhsh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, Tehran University of Medical Sciences, Tehran, Iran
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30
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Liu Y, Mikrani R, He Y, Faran Ashraf Baig MM, Abbas M, Naveed M, Tang M, Zhang Q, Li C, Zhou X. TRPM8 channels: A review of distribution and clinical role. Eur J Pharmacol 2020; 882:173312. [PMID: 32610057 DOI: 10.1016/j.ejphar.2020.173312] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/10/2020] [Accepted: 06/23/2020] [Indexed: 12/15/2022]
Abstract
Ion channels are important therapeutic targets due to their plethoric involvement in physiological and pathological consequences. The transient receptor potential cation channel subfamily M member 8 (TRPM8) is a nonselective cation channel that controls Ca2+ homeostasis. It has been proposed to be the predominant thermoreceptor for cellular and behavioral responses to cold stimuli in the transient receptor potential (TRP) channel subfamilies and exploited so far to reach the clinical-stage of drug development. TRPM8 channels can be found in multiple organs and tissues, regulating several important processes such as cell proliferation, migration and apoptosis, inflammatory reactions, immunomodulatory effects, pain, and vascular muscle tension. The related disorders have been expanded to new fields ranging from cancer and migraine to dry eye disease, pruritus, irritable bowel syndrome (IBS), and chronic cough. This review is aimed to summarize the distribution of TRPM8 and disorders related to it from a clinical perspective, so as to broaden the scope of knowledge of researchers to conduct more studies on this subject.
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Affiliation(s)
- Yuqian Liu
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Jiangsu Province, Nanjing, 211198, PR China
| | - Reyaj Mikrani
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Jiangsu Province, Nanjing, 211198, PR China
| | - Yanjun He
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Jiangsu Province, Nanjing, 211198, PR China
| | - Mirza Muhammad Faran Ashraf Baig
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023, PR China
| | - Muhammad Abbas
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu, 210023, PR China
| | - Muhammad Naveed
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, PR China
| | - Meng Tang
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Jiangsu Province, Nanjing, 211198, PR China
| | - Qin Zhang
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Jiangsu Province, Nanjing, 211198, PR China
| | - Cuican Li
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Jiangsu Province, Nanjing, 211198, PR China
| | - Xiaohui Zhou
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Jiangsu Province, Nanjing, 211198, PR China; Department of Surgery, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu Province, 210017, PR China; Department of Surgery, Nanjing Shuiximen Hospital, Jiangsu Province, 210017, PR China.
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31
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da Costa R, Passos GF, Quintão NLM, Fernandes ES, Maia JRLCB, Campos MM, Calixto JB. Taxane-induced neurotoxicity: Pathophysiology and therapeutic perspectives. Br J Pharmacol 2020; 177:3127-3146. [PMID: 32352155 DOI: 10.1111/bph.15086] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/17/2020] [Accepted: 04/25/2020] [Indexed: 12/28/2022] Open
Abstract
Taxane-derived drugs are antineoplastic agents used for the treatment of highly common malignancies. Paclitaxel and docetaxel are the most commonly used taxanes; however, other drugs and formulations have been used, such as cabazitaxel and nab-paclitaxel. Taxane treatment is associated with neurotoxicity, a well-known and relevant side effect, very prevalent amongst patients undergoing chemotherapy. Painful peripheral neuropathy is the most dose-limiting side effect of taxanes, affecting up to 97% of paclitaxel-treated patients. Central neurotoxicity is an emerging side effect of taxanes and it is characterized by cognitive impairment and encephalopathy. Besides impairing compliance to chemotherapy treatment, taxane-induced neurotoxicity (TIN) can adversely affect the patient's life quality on a long-term basis. Despite the clinical relevance, not many reviews have comprehensively addressed taxane-induced neurotoxicity when they are used therapeutically. This article provides an up-to-date review on the pathophysiology of TIN and the novel potential therapies to prevent or treat this side effect.
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Affiliation(s)
- Robson da Costa
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Giselle F Passos
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Nara L M Quintão
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Itajaí, SC, Brazil
| | - Elizabeth S Fernandes
- Instituto Pelé Pequeno Príncipe, Curitiba, PR, Brazil.,Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | | | - Maria Martha Campos
- Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - João B Calixto
- Centro de Inovação e Ensaios Pré-clínicos - CIEnP, Florianópolis, SC, Brazil
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32
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Ai X, Wu Y, Lu W, Zhang X, Zhao L, Tu P, Wang K, Jiang Y. A Precise Microfluidic Assay in Single-Cell Profile for Screening of Transient Receptor Potential Channel Modulators. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000111. [PMID: 32537418 PMCID: PMC7284206 DOI: 10.1002/advs.202000111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/03/2020] [Accepted: 03/08/2020] [Indexed: 05/14/2023]
Abstract
Transient receptor potential (TRP) channels are emerging drug targets, and TRP channel modulators possess therapeutic potential for many indications. However, there is a lack of intellectual and robust screening assays against TRP channels utilizing the least amount of compounds. Here, a precise microfluidic assay in single-cell profile is developed for the screening of TRP channel modulators. The geometrically optimized microchip is designed for both trapping single cells and utilizing passive pumping for sequential media replacement with low shear stress. The microfluidic chip exhibits superior performance in screening, repeatable compound administration, and improved reproducibility. Using this screening platform, the false-positive and negative rate of the commonly used Ca2+ imaging is reduced from 76.2% to 4.8% and four coumarin derivatives isolated from Murraya species that inhibit TRP channels are identified. One coumarin derivative B-304 reverses TRPA1-mediated inflammatory pain in vivo. Taken together, the data demonstrate that the established microfluidic assay in single-cell profile could be used for the screening of TRP channel modulators that may have therapeutic potential for the channelopathies.
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Affiliation(s)
- Xiaoni Ai
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100191China
| | - Yang Wu
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100191China
- Department of PharmacologyQingdao University School of Pharmacy38 Dengzhou RoadQingdao266021China
| | - Wenbo Lu
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100191China
| | - Xinran Zhang
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100191China
- Department of PharmacologyQingdao University School of Pharmacy38 Dengzhou RoadQingdao266021China
| | - Lin Zhao
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100191China
| | - Pengfei Tu
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100191China
| | - KeWei Wang
- Department of PharmacologyQingdao University School of Pharmacy38 Dengzhou RoadQingdao266021China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100191China
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Nkambeu B, Salem JB, Beaudry F. Capsaicin and Its Analogues Impede Nocifensive Response of Caenorhabditis elegans to Noxious Heat. Neurochem Res 2020; 45:1851-1859. [PMID: 32418082 DOI: 10.1007/s11064-020-03049-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/01/2020] [Accepted: 05/05/2020] [Indexed: 01/09/2023]
Abstract
Capsaicin is the most abundant pungent molecule identified in red chili peppers, and it is widely used for food flavoring, in pepper spray for self-defense devices and recently in ointments for the relief of neuropathic pain. Capsaicin and several other related vanilloid compounds are secondary plant metabolites. Capsaicin is a selective agonist of the transient receptor potential channel, vanilloid subfamily member 1 (TRPV1). After exposition to vanilloid solution, Caenorhabditis elegans wild type (N2) and mutants were placed on petri dishes divided in quadrants for heat stimulation. Thermal avoidance index was used to phenotype each tested C. elegans experimental groups. The data revealed for the first-time that capsaicin can impede nocifensive response of C. elegans to noxious heat (32-35 °C) following a sustained exposition. The effect was reversed 6 h post capsaicin exposition. Additionally, we identified the capsaicin target, the C. elegans transient receptor potential channel OCR-2 and not OSM-9. Further experiments also undoubtedly revealed anti-nociceptive effect for capsaicin analogues, including olvanil, gingerol, shogaol and curcumin.
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Affiliation(s)
- Bruno Nkambeu
- Groupe de Recherche en Pharmacologie Animal du Québec (GREPAQ), Département de Biomédecine Vétérinaire, Faculté de Médecine Vétérinaire, Université de Montréal, 3200 Sicotte, Saint-Hyacinthe, Québec, J2S 2M2, Canada
| | - Jennifer Ben Salem
- Groupe de Recherche en Pharmacologie Animal du Québec (GREPAQ), Département de Biomédecine Vétérinaire, Faculté de Médecine Vétérinaire, Université de Montréal, 3200 Sicotte, Saint-Hyacinthe, Québec, J2S 2M2, Canada
| | - Francis Beaudry
- Groupe de Recherche en Pharmacologie Animal du Québec (GREPAQ), Département de Biomédecine Vétérinaire, Faculté de Médecine Vétérinaire, Université de Montréal, 3200 Sicotte, Saint-Hyacinthe, Québec, J2S 2M2, Canada.
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Sałat K. Chemotherapy-induced peripheral neuropathy: part 1-current state of knowledge and perspectives for pharmacotherapy. Pharmacol Rep 2020; 72:486-507. [PMID: 32394362 PMCID: PMC7329796 DOI: 10.1007/s43440-020-00109-y] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/20/2020] [Accepted: 04/28/2020] [Indexed: 12/13/2022]
Abstract
Background Despite the increasing knowledge of the etiology of neuropathic pain, this type of chronic pain is resistant to available analgesics in approximately 50% of patients and therefore is continuously a subject of considerable interest for physiologists, neurologists, medicinal chemists, pharmacologists and others searching for more effective treatment options for this debilitating condition. Materials and methods The present review article is the first of the two articles focused on chemotherapy-induced peripheral neuropathy (CIPN). Results CIPN is regarded as one of the most common drug-induced neuropathies and is highly pharmacoresistant. The lack of efficacious pharmacological methods for treating CIPN and preventing its development makes CIPN-related neuropathic pain a serious therapeutic gap in current medicine and pharmacotherapy. In this paper, the most recent advances in the field of studies on CIPN caused by platinum compounds (namely oxaliplatin and cisplatin), taxanes, vinca alkaloids and bortezomib are summarized. Conclusions The prevalence of CIPN, potential causes, risk factors, symptoms and molecular mechanisms underlying this pharmacoresistant condition are discussed. Graphic abstract ![]()
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Affiliation(s)
- Kinga Sałat
- Department of Pharmacodynamics, Chair of Pharmacodynamics, Jagiellonian University Medical College, 9 Medyczna St., 30-688, Krakow, Poland.
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Mazeto TK, Picada JN, Correa ÁP, Rebelo IN, Ribeiro MT, Gomez MV, de Souza AH. Antinociceptive and genotoxic assessments of the antagonist TRPV1 receptor SB-366791 on morphine-induced tolerance in mice. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2020; 393:481-490. [PMID: 31655852 DOI: 10.1007/s00210-019-01748-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 10/09/2019] [Indexed: 12/17/2022]
Abstract
Chronic pain is mainly treated with opioid analgesics such as morphine. However, the use of these substances can cause adverse effects, including dependence and tolerance, necessitating the discovery of a new approach to analgesic therapies. The transient receptor potential vanilloid 1 (TRPV1) is linked to thermal sensibility and has been considered as a new therapeutic option for pain treatment. This study aims to investigate the antinociceptive effect and toxicity of SB-366791, a TRPV1 antagonist. Morphine-tolerant and morphine non-tolerant Swiss mice were submitted to the hot plate and thermal tail flick tests. Toxicological evaluations of the genotoxic and mutagenic activities of SB-366791 were assessed using a comet assay and micronucleus test, and the Salmonella/microsome mutagenicity assay. In the hot plate test, intrathecal injection of SB-366791 or morphine resulted in significantly increased antinociception in non-tolerant mice. SB-366791 also led to an analgesic effect in the tail flick test. Tolerant mice that received SB-366791 demonstrated a central antinociceptive effect in both thermal tests. No genotoxic effects were observed in the comet assay and no mutagenic effects were detected in the micronucleus test or in the Salmonella/microsome assay. Behavioral results of the thermal nociception tests show that SB-366791 has antinociceptive potential in both morphine-tolerant and non-tolerant mice and does not cause genotoxic or mutagenic effects. Nevertheless, new studies should be performed to clarify the activity and participation of vanilloid channels in the antinociception of SB-366791.
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Affiliation(s)
- Thiago Kastell Mazeto
- Graduate Program in Cellular and Molecular Biology Applied to Health Sciences, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil
| | - Jaqueline Nascimento Picada
- Graduate Program in Cellular and Molecular Biology Applied to Health Sciences, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil.
- Graduate Program in Genetics and Applied Toxicology, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil.
| | - Áurea Pandolfo Correa
- Department of Pharmacology, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil
| | - Isadora Nunes Rebelo
- Department of Pharmacology, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil
| | - Magali Terra Ribeiro
- Graduate Program in Genetics and Applied Toxicology, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil
| | - Marcus Vinícius Gomez
- Department of Neurotransmitters, Institute for Education and Research, Hospital Santa Casa, Domingos Vieira Street, 590, Belo Horizonte, MG, CEP 30150-240, Brazil
| | - Alessandra Hubner de Souza
- Graduate Program in Cellular and Molecular Biology Applied to Health Sciences, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil
- Graduate Program in Genetics and Applied Toxicology, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil
- Department of Pharmacology, Lutheran University of Brazil (ULBRA), Farroupilha Avenue, 8001, Canoas, RS, CEP 92425-900, Brazil
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Antinociceptive, antiedematous, and antiallodynic activity of 1H-pyrrolo[3,4-c]pyridine-1,3(2H)-dione derivatives in experimental models of pain. Naunyn Schmiedebergs Arch Pharmacol 2019; 393:813-827. [PMID: 31858155 DOI: 10.1007/s00210-019-01783-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 11/28/2019] [Indexed: 12/25/2022]
Abstract
The aim of the presented study was to examine the potential antinociceptive, antiedematous (anti-inflammatory), and antiallodynic activities of two 1H-pyrrolo[3,4-c]pyridine-1,3(2H)-dione derivatives (DSZ 1 and DSZ 3) in various experimental models of pain. For this purpose, the hot plate test, the capsaicin test, the formalin test, the carrageenan model, and oxaliplatin-induced allodynia tests were performed. In the hot plate test, only DSZ 1 in the highest dose (20 mg/kg) was active but its effects appear to be due to sedatation rather than antinociceptiveness. In capsaicin-induced neurogenic pain model, both compounds displayed a significant antinociceptive activity. In the formalin test, DSZ 1 and DSZ 3 (5-20 mg/kg) revealed antinociceptive activity in both phases but it was more pronounced in the second phase of the test. In this test, pretreatment with caffeine, DPCPX reversed the antinociceptive effect of DSZ 3. On the other hand, pretreatment with L-NAME diminished the antinociceptive effect of DSZ 1. Pretreatment with naloxone did not affect antinociceptive activity of both compounds. Similar to ketoprofen, DSZ 1 and DSZ 3 showed antiedematous (antiinflammatory) and antihyperalgesic activity, and similar to lidocaine local anesthetic activity. Furthermore, both compounds (5 and 10 mg/kg) reduced tactile allodynia in acute and chronic phases of neuropathic pain. In the in vitro studies, DSZ 1 and DSZ 3 reduced the COX-2 level in LPS-activated RAW 264.7 cells, which suggests their anti-inflammatory activity. In conclusion, both DSZ 1 and DSZ 3 displayed broad spectrum of activity in several pain models, including neurogenic, tonic, inflammatory, and chemotherapy-induced peripheral neuropathic pain.
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Xia M, Chen W, Wang J, Yin Y, Guo C, Li C, Li M, Tang X, Jia Z, Hu R, Liu X, Feng H. TRPA1 Activation-Induced Myelin Degradation Plays a Key Role in Motor Dysfunction After Intracerebral Hemorrhage. Front Mol Neurosci 2019; 12:98. [PMID: 31057367 PMCID: PMC6478672 DOI: 10.3389/fnmol.2019.00098] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 04/03/2019] [Indexed: 12/24/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a devastating disease that is characterized by high morbidity and high mortality. ICH has an annual incidence of 10-30/100,000 people and accounts for approximately 10%-30% of all types of stroke. ICH mostly occurs at the basal ganglia, which is rich in nerve fibers; thus, hemiplegia is quite common in ICH patients with partial sensory disturbance and ectopic blindness. In the clinic, those symptoms are considered to originate from the white matter injury in the area, but the exact mechanisms are unknown, and currently, no effective drug treatments are available to improve the prognosis. Clarifying the mechanisms will contribute to the development of new treatment methods for patients. The transient receptor potential ankyrin 1 (TRPA1) channel is a non-selective cation channel that plays a role in inflammatory pain sensation and nociception and may be a potential regulator in emotion, cognition and social behavior. Here, we report that TRPA1 is involved in myelin damage and oxidative stress injury in a mouse ICH model. Intervention with the TRPA1 channel may be a new method to improve the motor function of patients in the early stage of ICH.
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Affiliation(s)
- Min Xia
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Weixiang Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jie Wang
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yi Yin
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Chao Guo
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Chengcheng Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Mingxi Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xiaoqin Tang
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Zhengcai Jia
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Rong Hu
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xin Liu
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
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A Human TRPA1-Specific Pain Model. J Neurosci 2019; 39:3845-3855. [PMID: 30862667 DOI: 10.1523/jneurosci.3048-18.2019] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/19/2019] [Accepted: 02/22/2019] [Indexed: 12/31/2022] Open
Abstract
The cation channel transient receptor potential ankyrin 1 (TRPA1) plays an important role in sensing potentially hazardous substances. However, TRPA1 species differences are substantial and limit translational research. TRPA1 agonists tested previously in humans also have other targets. Therefore, the sensation generated by isolated TRPA1 activation in humans is unknown. The availability of 2-chloro-N-(4-(4-methoxyphenyl)thiazol-2-yl)-N-(3-methoxypropyl)-acetamide (JT010), a potent and specific TRPA1 agonist, allowed us to explore this issue. To corroborate the specificity of JT010, it was investigated whether the TRPA1 antagonist (1E,3E)-1-(4-fluorophenyl)-2-methyl-1-penten-3-one oxime (A-967079) abolishes JT010-elicited pain. Sixteen healthy volunteers of both sexes rated pain due to intraepidermal injections of different concentrations and combinations of the substances. The study design was a double-blind crossover study. All subjects received all types of injections, including a placebo without substances. Injections of the TRPA1 agonist dose-dependently caused pain with a half-maximal effective concentration of 0.31 μm Coinjection of A-967079 dose-dependently reduced and at a high concentration abolished JT010-induced pain. Quantification of JT010 by HPLC showed that a substantial part is adsorbed when in contact with polypropylene surfaces, but that this was overcome by handling in glass vials and injection using glass syringes. Isolated TRPA1 activation in humans causes pain. Thus, intradermal JT010 injection can serve as a tool to validate new TRPA1 antagonists concerning target engagement. More importantly, TRPA1-specific tools allow quantification of the TRPA1-dependent component in physiology and pathophysiology.SIGNIFICANCE STATEMENT This study showed that activation of the ion channel transient receptor potential ankyrin 1 (TRPA1) alone indeed suffices to elicit pain in humans, independent of other receptors previously found to be involved in pain generation. The newly established TRPA1-specific pain model allows different applications. First, it can be tested whether diseases are associated with compromised or exaggerated TRPA1-dependent painful sensations in the skin. Second, it can be investigated whether a new, possibly systemically applied drug directed against TRPA1 engages its target in humans. Further, the general possibility of quantitative inhibition of TRPA1 allows identification of the TRPA1-dependent disease component, given that the substance reaches its target. This contributes to a better understanding of pathophysiology, can lay the basis for new therapeutic approaches, and can bridge the gap between preclinical research and clinical trials.
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Santos AL, Leite GO, Carneiro RF, Roma RR, Santos VF, Santos MH, Pereira RO, Silva RC, Nagano CS, Sampaio AH, Rocha BA, Delatorre P, Campos AR, Teixeira CS. Purification and biophysical characterization of a mannose/N-acetyl-d-glucosamine-specific lectin from Machaerium acutifolium and its effect on inhibition of orofacial pain via TRPV1 receptor. Arch Biochem Biophys 2019; 664:149-156. [DOI: 10.1016/j.abb.2019.02.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/07/2019] [Accepted: 02/13/2019] [Indexed: 12/12/2022]
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Nowaczyk A, Fijałkowski Ł, Kowalska M, Podkowa A, Sałat K. Studies on the Activity of Selected Highly Lipophilic Compounds toward hGAT1 Inhibition. Part II. ACS Chem Neurosci 2019; 10:337-347. [PMID: 30222312 DOI: 10.1021/acschemneuro.8b00282] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In this paper, we describe the latest results involving molecular modeling and pharmacodynamic studies of the selected highly lipophilic compounds acting by human GABA transporter 1 (hGAT1) inhibition. The chemical interaction of 17 GABA analogues with a model of hGAT1 is described using the molecular docking method. The biological role of GAT1 is related to the regulation of GABA level in the central nervous system and GAT1 inhibition plays an important role in the control of seizure threshold. To confirm that GAT1 can be also a molecular target for drugs used to treat other neurological and psychiatric diseases (e.g., pain and anxiety), in the in vivo part of this study, potential antinociceptive and anxiolytic-like properties of tiagabine, a selective GAT1 inhibitor, are described.
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Affiliation(s)
- Alicja Nowaczyk
- Department of Organic Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 2 dr. A. Jurasza St., 85-094 Bydgoszcz, Poland
| | - Łukasz Fijałkowski
- Department of Organic Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 2 dr. A. Jurasza St., 85-094 Bydgoszcz, Poland
| | - Magdalena Kowalska
- Department of Organic Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 2 dr. A. Jurasza St., 85-094 Bydgoszcz, Poland
| | - Adrian Podkowa
- Chair of Inorganic and Analytical Chemistry, Jagiellonian University Medical College, 9 Medyczna St., 30-688 Kraków, Poland
| | - Kinga Sałat
- Department of Pharmacodynamics, Chair of Pharmacodynamics, Jagiellonian University Medical College, 9 Medyczna St., 30-688 Krakow, Poland
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Hossain MZ, Ando H, Unno S, Masuda Y, Kitagawa J. Activation of TRPV1 and TRPM8 Channels in the Larynx and Associated Laryngopharyngeal Regions Facilitates the Swallowing Reflex. Int J Mol Sci 2018; 19:E4113. [PMID: 30567389 PMCID: PMC6321618 DOI: 10.3390/ijms19124113] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/06/2018] [Accepted: 12/17/2018] [Indexed: 12/17/2022] Open
Abstract
The larynx and associated laryngopharyngeal regions are innervated by the superior laryngeal nerve (SLN) and are highly reflexogenic. Transient receptor potential (TRP) channels have recently been detected in SLN innervated regions; however, their involvement in the swallowing reflex has not been fully elucidated. Here, we explore the contribution of two TRP channels, TRPV1 and TRPM8, located in SLN-innervated regions to the swallowing reflex. Immunohistochemistry identified TRPV1 and TRPM8 on cell bodies of SLN afferents located in the nodose-petrosal-jugular ganglionic complex. The majority of TRPV1 and TRPM8 immunoreactivity was located on unmyelinated neurons. Topical application of different concentrations of TRPV1 and TRPM8 agonists modulated SLN activity. Application of the agonists evoked a significantly greater number of swallowing reflexes compared with the number evoked by distilled water. The interval between the reflexes evoked by the agonists was shorter than that produced by distilled water. Prior topical application of respective TRPV1 or TRPM8 antagonists significantly reduced the number of agonist-evoked reflexes. The findings suggest that the activation of TRPV1 and TRPM8 channels present in the swallowing-related regions can facilitate the evoking of swallowing reflex. Targeting the TRP channels could be a potential therapeutic strategy for the management of dysphagia.
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Affiliation(s)
- Mohammad Zakir Hossain
- Department of Oral Physiology, School of Dentistry, Matsumoto Dental University, 1780 Gobara Hirooka, Shiojiri, Nagano 399-0781, Japan.
| | - Hiroshi Ando
- Department of Biology, School of Dentistry, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri, Nagano 399-0781, Japan.
| | - Shumpei Unno
- Department of Oral Physiology, School of Dentistry, Matsumoto Dental University, 1780 Gobara Hirooka, Shiojiri, Nagano 399-0781, Japan.
| | - Yuji Masuda
- Institute for Oral Science, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri, Nagano 399-0781, Japan.
| | - Junichi Kitagawa
- Department of Oral Physiology, School of Dentistry, Matsumoto Dental University, 1780 Gobara Hirooka, Shiojiri, Nagano 399-0781, Japan.
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Enhanced pharmacological efficacy of sumatriptan due to modification of its physicochemical properties by inclusion in selected cyclodextrins. Sci Rep 2018; 8:16184. [PMID: 30385844 PMCID: PMC6212534 DOI: 10.1038/s41598-018-34554-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 10/18/2018] [Indexed: 11/09/2022] Open
Abstract
The study focused on the pharmacological action of sumatriptan, in particular its antiallodynic and antihyperalgesic properties, as an effect of cyclodextrinic inclusion of sumatriptan, resulting in changes of its physicochemical qualities such as dissolution and permeability through artificial biological membranes, which had previously been examined in vitro in a gastro-intestinal model. The inclusion of sumatriptan into β-cyclodextrin and 2-hydroxylpropylo-β-cyclodextrin by kneading was confirmed with the use of spectral (fourier-transform infrared spectroscopy (FT-IR); solid state nuclear magnetic resonance spectroscopy with magic angle spinning condition, 1H and 13C MAS NMR) and thermal (differential scanning calorimetry (DSC)) methods. A precise indication of the domains of sumatriptan responsible for its interaction with cyclodextrin cavities was possible due to a theoretical approach to the analysis of experimental spectra. A high-performance liquid chromatography with a diode-array detector method (HPLC-DAD) was employed to determine changes in the concentration of sumatriptan during dissolution and permeability experiments. The inclusion of sumatriptan in complex with cyclodextrins was found to significantly modify its dissolution profiles by increasing the concentration of sumatriptan in complexed form in an acceptor solution compared to in its free form. Following complexation, sumatriptan manifested an enhanced ability to permeate through artificial biological membranes in a gastro-intestinal model for both cyclodextrins at all pH values. As a consequence of the greater permeability of sumatriptan and its increased dissolution from the complexes, an improved pharmacological response was observed when cyclodextrin complexes were applied.
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McGaraughty S, Chu KL, Xu J. Characterization and pharmacological modulation of noci-responsive deep dorsal horn neurons across diverse rat models of pathological pain. J Neurophysiol 2018; 120:1893-1905. [DOI: 10.1152/jn.00325.2018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This overview compares the activity of wide dynamic range (WDR) and nociceptive specific (NS) neurons located in the deep dorsal horn across different rat models of pathological pain and following modulation by diverse pharmacology. The data were collected by our group under the same experimental conditions over numerous studies to facilitate comparison. Spontaneous firing of WDR neurons was significantly elevated (>3.7 Hz) in models of neuropathic, inflammation, and osteoarthritic pain compared with naive animals (1.9 Hz) but was very low (<0.5 Hz) and remained unchanged in NS neurons. WDR responses to low-intensity mechanical stimulation were elevated in neuropathic and inflammation models. WDR responses to high-intensity stimuli were enhanced in inflammatory (heat) and osteoarthritis (mechanical) models. NS responses to high-intensity stimulation did not change relative to control in any model examined. Several therapeutic agents reduced both evoked and spontaneous firing of WDR neurons (e.g., TRPV1, TRPV3, Nav1.7, Nav1.8, P2X7, P2X3, H3), other targets affected neither evoked nor spontaneous firing of WDR neurons (e.g., H4, TRPM8, KCNQ2/3), and some only modulated evoked (e.g, ASIC1a, Cav3.2) whereas others decreased evoked but affected spontaneous activity only in specific models (e.g., TRPA1, CB2). Spontaneous firing of WDR neurons was not altered by any peripherally restricted compound or by direct administration of compounds to peripheral sites, although the same compounds decreased evoked activity. Compounds acting centrally were effective against this endpoint. The diversity of incoming/modulating inputs to the deep dorsal horn positions this group of neurons as an important intersection within the pain system to validate novel therapeutics. NEW & NOTEWORTHY Data from multiple individual experiments were combined to show firing properties of wide dynamic range and nociceptive specific spinal dorsal horn neurons across varied pathological pain models. This high-powered analysis describes the sensitization following different forms of injury. Effects of diverse pharmacology on these neurons is also summarized from published and unpublished data all recorded under the same conditions to facilitate comparison. This comprehensive overview describes the function and utility of these neurons.
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Affiliation(s)
| | | | - Jun Xu
- AbbVie Discovery, North Chicago, Illinois
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Chłoń-Rzepa G, Ślusarczyk M, Jankowska A, Gawalska A, Bucki A, Kołaczkowski M, Świerczek A, Pociecha K, Wyska E, Zygmunt M, Kazek G, Sałat K, Pawłowski M. Novel amide derivatives of 1,3-dimethyl-2,6-dioxopurin-7-yl-alkylcarboxylic acids as multifunctional TRPA1 antagonists and PDE4/7 inhibitors: A new approach for the treatment of pain. Eur J Med Chem 2018; 158:517-533. [PMID: 30245393 DOI: 10.1016/j.ejmech.2018.09.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 09/06/2018] [Accepted: 09/08/2018] [Indexed: 12/31/2022]
Abstract
A series of novel amide derivatives of 1,3-dimethyl-2,6-dioxopurin-7-yl-alkylcarboxylic acids designed using a structure-based computational approach was synthesized and assayed to evaluate their ability to block human TRPA1 channel and inhibit PDE4B/7A activity. We identified compounds 16 and 27 which showed higher potency against TRPA1 compared to HC-030031. In turn, compound 36 was the most promising multifunctional TRPA1 antagonist and PDE4B/7A dual inhibitor with IC50 values in the range of that of the reference rolipram and BRL-50481, respectively. Compound 36 as a combined TRPA1/PDE4B/PDE7A ligand was characterized by a distinct binding mode in comparison to 16 and 27, in the given protein targets. The inhibition of both cAMP-specific PDE isoenzymes resulted in a strong anti-TNF-α effect of 36in vivo. Moreover, the potent anti-inflammatory and analgesic efficacy of 36 was observed in animal models of pain and inflammation (formalin test in mice and carrageenan-induced paw edema in rats). This compound also displayed significant antiallodynic properties in the early phase of chemotherapy-induced peripheral neuropathy in mice. In turn, the pure TRPA1 antagonists 16 and 27 revealed a statistically significant antiallodynic effect in the formalin test and in the von Frey test performed in both phases of oxaliplatin-induced allodynia. Antiallodynic activity of the test compounds 16, 27 and 36 was observed at a dose range comparable to that of the reference drug - pregabalin. In conclusion, the proposed approach of pain treatment based on the concomitant blocking of TRPA1 channel and PDE4B/7A inhibitory activity appears to be interesting research direction for the future search for novel analgesics.
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Affiliation(s)
- Grażyna Chłoń-Rzepa
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland.
| | - Marietta Ślusarczyk
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Agnieszka Jankowska
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Alicja Gawalska
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Adam Bucki
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Marcin Kołaczkowski
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Artur Świerczek
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Krzysztof Pociecha
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Elżbieta Wyska
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Małgorzata Zygmunt
- Department of Pharmacological Screening, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Grzegorz Kazek
- Department of Pharmacological Screening, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Kinga Sałat
- Department of Pharmacodynamics, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
| | - Maciej Pawłowski
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna str, 30-688, Kraków, Poland
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do Nascimento JET, de Morais SM, de Lisboa DS, de Oliveira Sousa M, Santos SAAR, Magalhães FEA, Campos AR. The orofacial antinociceptive effect of Kaempferol-3-O-rutinoside, isolated from the plant Ouratea fieldingiana, on adult zebrafish (Danio rerio). Biomed Pharmacother 2018; 107:1030-1036. [PMID: 30257314 DOI: 10.1016/j.biopha.2018.08.089] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/04/2018] [Accepted: 08/15/2018] [Indexed: 01/29/2023] Open
Abstract
The aim of this study was to evaluate the antinociceptive effect of Kaempferol-3-O-rutinoside (KR), isolated from the plant Ouratea fieldingiana, on the orofacial nociception and possible mechanisms of action. Adult zebrafish (Danio rerio) were tested as a behavioral model to study formalin, glutamate, capsaicin, cinnamaldehyde and acidic saline-induced orofacial nociception, using as parameter the number of times the fish crossed the lines between the quadrants of a glass Petri dish during a specific time. Morphine was used as positive control. The effect of KR was tested for modulation by opioid (naloxone), nitrergic (L-NAME), TRPV1 (ruthenium red), TRPA1 (camphor) or ASIC (amiloride) antagonists. The effect of KR on zebrafish locomotor behavior was evaluated with the open field test. KR did not alter the fish's locomotor system and significantly reduced the orofacial nociceptive behavior induced by all noxious agents compared to the control group. The antinociceptive effect of KR was similar to morphine. All antagonists inhibited the antinociceptive effect of KR. KR has pharmacological potential for the treatment of acute orofacial pain and this effect is modulated by the opioid and nitrergic systems as well as TRPV1, TRPA1 and ASIC channels. These results can lead to the development of a new natural product for the treatment of orofacial pain and confirm the popular use of O. fieldingiana leaf for pain relief.
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Affiliation(s)
- José Eranildo Teles do Nascimento
- Programa de Pós-Graduação em Ciências Veterinárias, Núcleo de Pesquisa em Sanidade Animal, Universidade Estadual do Ceará, Brazil; Laboratório de Química de Produtos Naturais (LQPN), Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil; Instituto Federal do Ceará, Campus Itapipoca, Ceará, Brazil
| | - Selene Maia de Morais
- Programa de Pós-Graduação em Ciências Veterinárias, Núcleo de Pesquisa em Sanidade Animal, Universidade Estadual do Ceará, Brazil; Laboratório de Química de Produtos Naturais (LQPN), Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil.
| | - Daniele Silva de Lisboa
- Laboratório de Química de Produtos Naturais (LQPN), Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - Matheus de Oliveira Sousa
- Laboratório de Química de Produtos Naturais (LQPN), Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - Sacha Aubrey Alves Rodrigues Santos
- Núcleo de Biologia Experimental, Universidade de Fortaleza, Fortaleza, Ceará, Brazil; Laboratório de Bioprospecção de Produtos Naturais e Biotecnologia (LBPNB), Universidade Estadual do Ceará (UECE), Tauá, Ceará, Brazil
| | - Francisco Ernani Alves Magalhães
- Núcleo de Biologia Experimental, Universidade de Fortaleza, Fortaleza, Ceará, Brazil; Laboratório de Bioprospecção de Produtos Naturais e Biotecnologia (LBPNB), Universidade Estadual do Ceará (UECE), Tauá, Ceará, Brazil
| | - Adriana Rolim Campos
- Núcleo de Biologia Experimental, Universidade de Fortaleza, Fortaleza, Ceará, Brazil
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De Caro C, Russo R, Avagliano C, Cristiano C, Calignano A, Aramini A, Bianchini G, Allegretti M, Brandolini L. Antinociceptive effect of two novel transient receptor potential melastatin 8 antagonists in acute and chronic pain models in rat. Br J Pharmacol 2018; 175:1691-1706. [PMID: 29485712 DOI: 10.1111/bph.14177] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 01/23/2018] [Accepted: 02/05/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Transient receptor potential (TRP) channels are a superfamily of non-selective cation permeable channels involved in peripheral sensory signalling. Animal studies have shown that several TRPs are important players in pain modulation. Among them, the TRP melastatin 8 (TRPM8) has elicited more interest for its controversial role in nociception. This channel, expressed by a subpopulation of sensory neurons in dorsal root ganglia (DRG) and trigeminal ganglia (TG), is activated by cold temperatures and cooling agents. In experimental neuropathic pain models, an up-regulation of this receptor in DRG and TG has been observed, suggesting a key role for TRPM8 in the development and maintenance of pain. Consistent with this hypothesis, TRPM8 knockout mice are less responsive to pain stimuli. EXPERIMENTAL APPROACH In this study, the therapeutic potential and efficacy of two novel TRPM8 antagonists, DFL23693 and DFL23448, were tested. KEY RESULTS Two potent and selective TRPM8 antagonists with distinct pharmacokinetic profiles, DFL23693 and DFL23448, have been fully characterized in vitro. In vivo studies in well-established models, namely, the wet-dog shaking test and changes in body temperature, confirmed their ability to block the TRPM8 channel. Finally, TRPM8 blockage resulted in a significant antinociceptive effect in formalin-induced orofacial pain and in chronic constriction injury-induced neuropathic pain, confirming an important role for this channel in pain perception. CONCLUSION AND IMPLICATIONS Our findings, in agreement with previous literature, encourage further studies for a better comprehension of the therapeutic potential of TRPM8 blockers as novel agents for pain management.
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Affiliation(s)
- Carmen De Caro
- Department of Pharmacy, University of Naples Federico II, Naples, Italy.,Department of Science of Health, School of Medicine and Surgery, University of Catanzaro, Catanzaro, Italy
| | - Roberto Russo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Carmen Avagliano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Claudia Cristiano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Antonio Calignano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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Sałat K, Furgała A, Sałat R. Evaluation of cebranopadol, a dually acting nociceptin/orphanin FQ and opioid receptor agonist in mouse models of acute, tonic, and chemotherapy-induced neuropathic pain. Inflammopharmacology 2018; 26:361-374. [PMID: 29071457 PMCID: PMC5859690 DOI: 10.1007/s10787-017-0405-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 10/06/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Cebranopadol (a.k.a. GRT-6005) is a dually acting nociceptin/orphanin FQ and opioid receptor agonist that has been recently developed in Phase 2 clinical trials for painful diabetic neuropathy or cancer pain. It also showed analgesic properties in various rat models of pain and had a better safety profile as compared to equi-analgesic doses of morphine. Since antinociceptive properties of cebranopadol have been studied mainly in rat models, in the present study, we assessed analgesic activity of subcutaneous cebranopadol (10 mg/kg) in various mouse pain models. METHODS We used models of acute, tonic, and chronic pain induced by thermal and chemical stimuli, with a particular emphasis on pharmacoresistant chronic neuropathic pain evoked by oxaliplatin in which cebranopadol was used alone or in combination with simvastatin. KEY RESULTS As shown in the hot plate test, the analgesic activity of cebranopadol developed more slowly as compared to morphine (90-120 min vs. 60 min). Cebranopadol displayed a significant antinociceptive activity in acute pain models, i.e., the hot plate, writhing, and capsaicin tests. It attenuated nocifensive responses in both phases of the formalin test and reduced cold allodynia in oxaliplatin-induced neuropathic pain model. Its efficacy was similar to that of morphine. Used in combination and administered simultaneously, 4 or 6 h after simvastatin, cebranopadol did not potentiate antiallodynic activity of this cholesterol-lowering drug. Cebranopadol did not induce any motor deficits in the rotarod test. CONCLUSION Cebranopadol may have significant potential for the treatment of various pain types, including inflammatory and chemotherapy-induced neuropathic pain.
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Affiliation(s)
- Kinga Sałat
- Chair of Pharmacodynamics, Department of Pharmacodynamics, Jagiellonian University Medical College, 9 Medyczna St, 30-688, Krakow, Poland.
| | - Anna Furgała
- Chair of Pharmacodynamics, Department of Pharmacodynamics, Jagiellonian University Medical College, 9 Medyczna St, 30-688, Krakow, Poland
| | - Robert Sałat
- Faculty of Production Engineering, Warsaw University of Life Sciences, 164 Nowoursynowska St, 02-787, Warsaw, Poland
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Vidal Rodriguez S, Castillo Aguilar I, Cuesta Villa L, Serrano Saenz de Tejada F. TRPA1 polymorphisms in chronic and complete spinal cord injury patients with neuropathic pain: a pilot study. Spinal Cord Ser Cases 2018; 3:17089. [PMID: 29423295 DOI: 10.1038/s41394-017-0004-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 07/25/2017] [Accepted: 08/25/2017] [Indexed: 12/29/2022] Open
Abstract
Study design Pilot study. Objectives Single-nucleotide polymorphisms (SNPs) in TRPA1 gene are related to the etiology of chronic pain. The study is a pilot study with the primary objective of analyzing these SNPs in Spanish patients with chronic and complete spinal cord injury (SCI) and neuropathic pain (NPP). Setting Asepeyo Hospital Department of Chronic and Complete SCI. Methods Twelve patients with chronic and complete SCI and NPP, and 12 patients with chronic and complete SCI with no pain were reviewed. International Spinal Cord Injury Pain Classification (LANSS) and visual analog score (VAS) were chosen to classify pain syndrome. SNPs were identified by melting analysis after DNA amplification with real-time fluorescence PCR. Results There were differences in rs11988795 variant: GG homozygous (p = 0.01) and G allele (p = 0.001) were more frequent in SCI patients with no pain. There were differences in rs13255063 variant: TT homozygous were prevalent (p = 0.03) in patients with NPP. Conclusions Until now this is the first study to show a description of TRPA1 SNPs in Spanish patients with chronic and complete SCI and NPP. These results suggest that GG genotype in rs11988795 variant and G allele could be protective factors against NPP. TT genotype in rs13255063 variant could be a risk factor for NPP. Neuropathic pain after spinal cord injuries may have genetic contributions.
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Affiliation(s)
| | | | - Luis Cuesta Villa
- Spinal Cord Injury Department, ASEPEYO Hospital, Coslada, 28820 Spain
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Furgała A, Sałat R, Sałat K. Acute cold allodynia induced by oxaliplatin is attenuated by amitriptyline. Acta Neurobiol Exp (Wars) 2018. [DOI: 10.21307/ane-2018-030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sałat K, Gryzło B, Kulig K. Experimental Drugs for Neuropathic Pain. Curr Neuropharmacol 2018; 16:1193-1209. [PMID: 29745335 PMCID: PMC6187752 DOI: 10.2174/1570159x16666180510151241] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 02/02/2018] [Accepted: 05/07/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Neuropathic pain (NP) is an important public health problem and despite recent progress in the understanding, diagnosis, pathophysiological mechanisms and the treatment of NP, many patients remain refractory to pharmacotherapy. OBJECTIVE Currently used drugs have limited efficacy and dose-limiting adverse effects, and thus there is a substantial need for further development of novel medications for its treatment. Alternatively, drugs approved for use in diseases other than NP can be applied as experimental for NP conditions. This paper covers advances in the field of NP treatment. RESULTS The prime focus of this paper is on drugs with well-established pharmacological activity whose current therapeutic applications are distinct from NP. These drugs could be a potential novel treatment of NP. Data from preclinical studies and clinical trials on these experimental drugs are presented. The development of advanced methods of genomics enabled to propose new targets for drugs which could be effective in the NP treatment. CONCLUSION Experimental drugs for NP can be a treatment option which should be tailor-made for each individual on the basis of pain features, previous therapies, associated clinical conditions, recurrence of pain, adverse effects, contraindications and patients' preferences. At present, there are only some agents which may have potential as novel treatments. Increasing knowledge about mechanisms underlying NP, mechanisms of drug action, as well as available data from preclinical and clinical studies make botulinum toxin A, minocycline, ambroxol, statins and PPAR agonists (ATx086001) promising potential future treatment options.
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Affiliation(s)
- Kinga Sałat
- Address correspondence to this author at the Faculty of Pharmacy,
Jagiellonian University, 9 Medyczna St., 30-688 Kraków, Poland; Tel: + 48 12 6205 555; Fax: + 48 12 6205 554; E-mail:
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