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Liu Y, Qi Q, Jiang Y, Zhao P, Chen L, Ma X, Shi Y, Xu J, Li J, Chen F, Chen J, Zhang L, Wu Y, Jiang X, Jin D, Xu T, Bu W. Ion Current Rectification Activity Induced by Boron Hydride Nanosheets to Enhance Magnesium Analgesia. Angew Chem Int Ed Engl 2024; 63:e202405131. [PMID: 38845566 DOI: 10.1002/anie.202405131] [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: 03/14/2024] [Indexed: 07/23/2024]
Abstract
The limited analgesic efficiency of magnesium restricts its application in pain management. Here, we report boron hydride (BH) with ion currents rectification activity that can enhance the analgesic efficiency of magnesium without the risks of drug tolerance or addiction. We synthesize MgB2, comprising hexagonal boron sheets alternating with Mg2+. In pathological environment, Mg2+ is exchanged by H+, forming two-dimensional borophene-analogue BH sheets. BH interacts with the charged cations via cation-pi interaction, leading to dynamic modulation of sodium and potassium ion currents around neurons. Additionally, released Mg2+ competes Ca2+ to inhibit its influx and neuronal excitation. In vitro cultured dorsal root neurons show a remarkable increase in threshold potential from the normal -35.9 mV to -5.9 mV after the addition of MgB2, indicating potent analgesic effect. In three typical pain models, including CFA-induced inflammatory pain, CINP- or CCI-induced neuropathic pain, MgB2 exhibits analgesic efficiency approximately 2.23, 3.20, and 2.0 times higher than clinical MgSO4, respectively, and even about 1.04, 1.66, and 1.95 times higher than morphine, respectively. The development of magnesium based intermetallic compounds holds promise in addressing the non-opioid medical need for pain relief.
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Affiliation(s)
- Yanyan Liu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Qi Qi
- Department of Anesthesiology, Shanghai Sixth Peoples Hospital Affiliated to Shanghai Jiao tong University, Shanghai, 200233, China
| | - Yaqin Jiang
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Peiran Zhao
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Lijie Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Xiaqing Ma
- Department of Anesthesiology, Shanghai Sixth Peoples Hospital Affiliated to Shanghai Jiao tong University, Shanghai, 200233, China
| | - Yuhan Shi
- Baylor College of medicine, Houston, TX 77030, USA
| | - Jianxun Xu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Jinjin Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Feixiang Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Jian Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Le Zhang
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, New South Wales, 2007, Australia
| | - Yelin Wu
- Department of Medical Ultrasound, Shanghai Tenth people's hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xingwu Jiang
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Dayong Jin
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, New South Wales, 2007, Australia
| | - Tao Xu
- Department of Anesthesiology, Shanghai Sixth Peoples Hospital Affiliated to Shanghai Jiao tong University, Shanghai, 200233, China
| | - Wenbo Bu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
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2
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Ribeiro Liberato H, Bezerra Maciel J, Wlisses Da Silva A, Eduarda Uchoa Bezerra M, San De Oliveira Brito L, Silva J, Kuerislene Amâncio Ferreira M, Machado Marinho M, Marinho GS, Deusdênia Loiola Pessoa O, Guedes MIF, Goberlânio De Barros Silva P, Ferreira de Castro Gomes A, Silva Alencar De Menezes JE, Silva Dos Santos H. Neuromodulation of Acid-Sensitive Ion Channels (ASICs) and Anti-Inflammatory Potential by Lichenxanthone in Adult Zebrafish (Danio rerio): Experimental and Docking Studies. Chem Biodivers 2024; 21:e202400063. [PMID: 38329295 DOI: 10.1002/cbdv.202400063] [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: 01/10/2024] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/09/2024]
Abstract
The xanthone lichenxanthone did not show toxic effects (LC50>1.0 mg/mL). lichenxanthone prevented nociceptive behavior induced by acidic saline, and its analgesic effect was blocked by amiloride, highlighting the involvement of neuromodulation of acid-sensitive ion channels (ASICs). In the analysis of anti-inflammatory activity, concentrations of 0.1 and 0.5 mg/mL of lichenxanthone reduced the edema induced by k-carrageenan 3.5 %, observed from the fourth hour of analysis. This effect was similar to that observed with ibuprofen (positive control). No leukocyte infiltrates were observed in lichenxanthone, suggesting that the compound acts in the acute inflammatory response. The results of the molecular docking study revealed that lichenxanthone exhibited better affinity energy when compared to the ibuprofen control against the two targets evaluated.
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Affiliation(s)
- Hortência Ribeiro Liberato
- Programa de Pós-graduação em Ciências Naturais, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - Jéssica Bezerra Maciel
- Programa de Pós-graduação em Ciências Naturais, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | | | | | - Luana San De Oliveira Brito
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Campus do Pici s/n, Fortaleza, Ceará, Brazil
| | - Jacilene Silva
- Programa de Pós-graduação em Ciências Naturais, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | | | - Marcia Machado Marinho
- Programa de Pós-graduação em Ciências Naturais, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - Gabrielle S Marinho
- Programa de Pós-graduação em Ciências Naturais, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - Otília Deusdênia Loiola Pessoa
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Campus do Pici s/n, Fortaleza, Ceará, Brazil
| | - Maria Izabel F Guedes
- Centro de Ciências da Saúde, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | | | | | | | - Hélcio Silva Dos Santos
- Programa de Pós-graduação em Ciências Naturais, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
- Universidade Estadual do Vale do Acaraú, Centro de Ciências Exatas e Tecnologia, Sobral, Ceará, Brasil
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3
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Tyagi S, Higerd-Rusli GP, Ghovanloo MR, Dib-Hajj F, Zhao P, Liu S, Kim DH, Shim JS, Park KS, Waxman SG, Choi JS, Dib-Hajj SD. Compartment-specific regulation of Na V1.7 in sensory neurons after acute exposure to TNF-α. Cell Rep 2024; 43:113685. [PMID: 38261513 PMCID: PMC10947185 DOI: 10.1016/j.celrep.2024.113685] [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: 08/08/2023] [Revised: 11/09/2023] [Accepted: 01/02/2024] [Indexed: 01/25/2024] Open
Abstract
Tumor necrosis factor α (TNF-α) is a major pro-inflammatory cytokine, important in many diseases, that sensitizes nociceptors through its action on a variety of ion channels, including voltage-gated sodium (NaV) channels. We show here that TNF-α acutely upregulates sensory neuron excitability and current density of threshold channel NaV1.7. Using electrophysiological recordings and live imaging, we demonstrate that this effect on NaV1.7 is mediated by p38 MAPK and identify serine 110 in the channel's N terminus as the phospho-acceptor site, which triggers NaV1.7 channel insertion into the somatic membrane. We also show that the N terminus of NaV1.7 is sufficient to mediate this effect. Although acute TNF-α treatment increases NaV1.7-carrying vesicle accumulation at axonal endings, we did not observe increased channel insertion into the axonal membrane. These results identify molecular determinants of TNF-α-mediated regulation of NaV1.7 in sensory neurons and demonstrate compartment-specific effects of TNF-α on channel insertion in the neuronal plasma membrane.
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Affiliation(s)
- Sidharth Tyagi
- Medical Scientist Training Program, Yale School of Medicine, New Haven, CT 06511, USA; Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA.
| | - Grant P Higerd-Rusli
- Medical Scientist Training Program, Yale School of Medicine, New Haven, CT 06511, USA; Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA
| | - Mohammad-Reza Ghovanloo
- Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA
| | - Fadia Dib-Hajj
- Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA
| | - Peng Zhao
- Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA
| | - Shujun Liu
- Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA
| | - Dong-Hyun Kim
- Integrated Research Institute of Pharmaceutical Science, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, South Korea; New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, South Korea
| | - Ji Seon Shim
- Department of Physiology, Kyung Hee University School of Medicine, Seoul 02447, South Korea
| | - Kang-Sik Park
- Department of Physiology, Kyung Hee University School of Medicine, Seoul 02447, South Korea
| | - Stephen G Waxman
- Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA.
| | - Jin-Sung Choi
- Integrated Research Institute of Pharmaceutical Science, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, South Korea.
| | - Sulayman D Dib-Hajj
- Center for Neuroscience and Regeneration Research, West Haven, CT 06516, USA; Department of Neurology, Yale School of Medicine, New Haven, CT 06516, USA; Center for Restoration of Nervous System Function, VA Connecticut Healthcare System, West Haven, CT 06516, USA.
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4
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Mogilski S, Kubacka M, Świerczek A, Wyska E, Szczepańska K, Sapa J, Kieć-Kononowicz K, Łażewska D. Efficacy of the Multi-Target Compound E153 in Relieving Pain and Pruritus of Different Origins. Pharmaceuticals (Basel) 2023; 16:1481. [PMID: 37895952 PMCID: PMC10609854 DOI: 10.3390/ph16101481] [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: 08/18/2023] [Revised: 10/04/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Itch and pain are closely related but distinct sensations that share largely overlapping mediators and receptors. We hypothesized that the novel, multi-target compound E153 has the potential to attenuate pain and pruritus of different origins. After the evaluation of sigma receptor affinity and pharmacokinetic studies, we tested the compound using different procedures and models of pain and pruritus. Additionally, we used pharmacological tools, such as PRE-084, RAMH, JNJ 5207852, and S1RA, to precisely determine the role of histamine H3 and sigma 1 receptors in the analgesic and antipruritic effects of the compound. In vitro studies revealed that the test compound had potent affinity for sigma 1 and sigma 2 receptors, moderate affinity for opioid kappa receptors, and no affinity for delta or μ receptors. Pharmacokinetic studies showed that after intraperitoneal administration, the compound was present at high concentrations in both the peripheral tissues and the central nervous system. The blood-brain barrier-penetrating properties indicate its ability to act centrally at the levels of the brain and spinal cord. Furthermore, the test compound attenuated different types of pain, including acute, inflammatory, and neuropathic. It also showed a broad spectrum of antipruritic activity, attenuating histamine-dependent and histamine-independent itching. Finally, we proved that antagonism of both sigma 1 and histamine H3 receptors is involved in the analgesic activity of the compound, while the antipruritic effect to a greater extent depends on sigma 1 antagonism.
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Affiliation(s)
- Szczepan Mogilski
- Department of Pharmacodynamics, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.K.); (J.S.)
| | - Monika Kubacka
- Department of Pharmacodynamics, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.K.); (J.S.)
| | - Artur Świerczek
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (A.Ś.); (E.W.)
| | - Elżbieta Wyska
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (A.Ś.); (E.W.)
| | - Katarzyna Szczepańska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (K.S.); (K.K.-K.); (D.Ł.)
- Department of Medicinal Chemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Jacek Sapa
- Department of Pharmacodynamics, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.K.); (J.S.)
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (K.S.); (K.K.-K.); (D.Ł.)
| | - Dorota Łażewska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (K.S.); (K.K.-K.); (D.Ł.)
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5
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Gladkikh IN, Klimovich AA, Kalina RS, Kozhevnikova YV, Khasanov TA, Osmakov DI, Koshelev SG, Monastyrnaya MM, Andreev YA, Leychenko EV, Kozlov SA. Anxiolytic, Analgesic and Anti-Inflammatory Effects of Peptides Hmg 1b-2 and Hmg 1b-4 from the Sea Anemone Heteractis magnifica. Toxins (Basel) 2023; 15:toxins15050341. [PMID: 37235375 DOI: 10.3390/toxins15050341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Acid-sensing ion channels (ASICs) have been known as sensors of a local pH change within both physiological and pathological conditions. ASIC-targeting peptide toxins could be potent molecular tools for ASIC-manipulating in vitro, and for pathology treatment in animal test studies. Two sea anemone toxins, native Hmg 1b-2 and recombinant Hmg 1b-4, both related to APETx-like peptides, inhibited the transient current component of human ASIC3-Δ20 expressed in Xenopus laevis oocytes, but only Hmg 1b-2 inhibited the rat ASIC3 transient current. The Hmg 1b-4 action on rASIC3 as a potentiator was confirmed once again. Both peptides are non-toxic molecules for rodents. In open field and elevated plus maze tests, Hmg 1b-2 had more of an excitatory effect and Hmg 1b-4 had more of an anxiolytic effect on mouse behavior. The analgesic activity of peptides was similar and comparable to diclofenac activity in an acid-induced muscle pain model. In models of acute local inflammation induced by λ-carrageenan or complete Freund's adjuvant, Hmg 1b-4 had more pronounced and statistically significant anti-inflammatory effects than Hmg 1b-2. It exceeded the effect of diclofenac and, at a dose of 0.1 mg/kg, reduced the volume of the paw almost to the initial volume. Our data highlight the importance of a comprehensive study of novel ASIC-targeting ligands, and in particular, peptide toxins, and present the slightly different biological activity of the two similar toxins.
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Affiliation(s)
- Irina N Gladkikh
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Anna A Klimovich
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Rimma S Kalina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Yulia V Kozhevnikova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Timur A Khasanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Dmitry I Osmakov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Sergey G Koshelev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Margarita M Monastyrnaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Yaroslav A Andreev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Elena V Leychenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Sergey A Kozlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
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Barabadi H, Mobaraki K, Ashouri F, Noqani H, Jounaki K, Mostafavi E. Nanobiotechnological approaches in antinociceptive therapy: Animal-based evidence for analgesic nanotherapeutics of bioengineered silver and gold nanomaterials. Adv Colloid Interface Sci 2023; 316:102917. [PMID: 37150042 DOI: 10.1016/j.cis.2023.102917] [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: 01/25/2023] [Revised: 04/27/2023] [Accepted: 04/30/2023] [Indexed: 05/09/2023]
Abstract
Pain management is a major challenge in healthcare systems worldwide. Owing to undesirable side effects of current analgesic medications, there is an exceeding need to develop the effective alternative therapeutics. Nowadays, the application of nanomaterials is being highly considered, as their exceptional properties arising from the nanoscale dimensions are undeniable. With the increasing use of metal NPs, more biocompatible and costly methods of synthesis have been developed in which different biological rescores including microorganisms, plants and algae are employed. Nanobiotechnology-based synthesis of nanosized particles is an ecological approach offering safe production of nanoparticles (NPs) by biological resources eliminating the toxicity attributed to the conventional routes. This review provides an assessment of biosynthesized silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) as antinociceptive agents in recent studies. Living animal models (mice and rats) have been used for analyzing the effect of biogenic NPs on decreasing the nociceptive pain utilizing different methods such as acetic acid-induced writhing test, hot plate test, and formalin test. Potent analgesic activity exhibited by green fabricated AgNPs and AuNPs represents the bright future of nanotechnology in the management of pain and other social and medicinal issues followed by this unpleasant sensation. Moreover, there NPs showed a protective effects on liver, kidney, and body weight in animal models that make them attractive for clinical studies. However, further research is required to fully address the harmless antinociceptive effect of NPs for clinical usage.
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Affiliation(s)
- Hamed Barabadi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Kiana Mobaraki
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Ashouri
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hesam Noqani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Jounaki
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States; Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States.
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Sun Y, Liu X, Wang L, Li L, Quan X, Shi H, Wang T, Mei L, Chen Y, Zhang Y, Li J, Meng R, Wang J, Dai F. Losartan attenuates acetic acid enema-induced visceral hypersensitivity by inhibiting the ACE1/Ang II/AT1 receptor axis in enteric glial cells. Eur J Pharmacol 2023; 946:175650. [PMID: 36907262 DOI: 10.1016/j.ejphar.2023.175650] [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: 10/31/2022] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023]
Abstract
Enteric glial cells (EGCs) play an important role in visceral hypersensitivity associated with irritable bowel syndrome (IBS). Losartan (Los) is known to reduce pain; however, its function in IBS is unclear. The present study aimed to investigate Los's therapeutic effect on visceral hypersensitivity in IBS rats. Thirty rats were randomly divided into control, acetic acid enema (AA), AA + Los low, medium and high dose groups in vivo. EGCs were treated with lipopolysaccharide (LPS) and Los in vitro. The molecular mechanisms were explored by assessing the expression of EGC activation markers, pain mediators, inflammatory factors and angiotensin-converting enzyme 1(ACE1)/angiotensin II (Ang II)/Ang II type 1 (AT1) receptor axis molecules in colon tissue and EGCs. The results showed that the rats in the AA group showed significantly higher visceral hypersensitivity than the control rats, which was alleviated by different doses of Los. The expression of GFAP, S100β, substance P (SP), calcitonin gene-related peptide (CGRP), transient receptor potential vanilloid 1 (TRPV1), tumor necrosis factor (TNF), interleukin-1β (IL-1β) and interleukin-6 (IL-6) was considerably increased in colonic tissues of AA group rats and LPS-treated EGCs compared with control rats and EGCs, and reduced by Los. In addition, Los reversed ACE1/Ang II/AT1 receptor axis upregulation in AA colon tissues and LPS-treated EGCs. These results show that Los inhibits ACE1/Ang II/AT1 receptor axis upregulation by suppressing EGC activation, resulting in reduced expression of pain mediators and inflammatory factors, thereby alleviating visceral hypersensitivity.
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Affiliation(s)
- Yating Sun
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Xiaohui Liu
- Department of Bone and Joint Surgery, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Lianli Wang
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Laifu Li
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Xiaojing Quan
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Haitao Shi
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Ting Wang
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Lin Mei
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Yindi Chen
- Department of Gastroenterology, Xi'an People's Hospital, Xi'an, China.
| | - Yue Zhang
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Jingyao Li
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Ruiting Meng
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Jinhai Wang
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Fei Dai
- Department of Gastroenterology, Second Affifiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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8
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Domiati S, Abd El Galil K, Ragab H. Molecular Mechanics Simulations and Experimental Investigation of the Effect of Tadalafil on Various Inflammatory Pain Mediators. ACS OMEGA 2022; 7:43747-43758. [PMID: 36506154 PMCID: PMC9730770 DOI: 10.1021/acsomega.2c04761] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/09/2022] [Indexed: 06/17/2023]
Abstract
PURPOSE Tadalafil's exact analgesic mechanism is still unclear. The current study aimed to elucidate this mechanism in an inflammatory pain model. METHODS Computer-assisted simulation docking experiments were carried out to assess the binding of tadalafil to different ligands. The anti-inflammatory and analgesic effects of tadalafil were evaluated using formalin-induced paw edema and a von Frey filament test, respectively. The plantar paw of the mice was then dissected to quantify iNOS, nNOS, COX-2, TNFα, IL1, and IL10 gene expression levels using a real-time polymerase chain reaction. iNOS, TNFα, and COX-2 inhibition was reassessed in vitro using the ELISA technique. One-way analysis of variance followed by post hoc Tukey test or t-test was used to compare the means. RESULTS Docking analysis showed a superior binding score of tadalafil to COX-2, iNOS, IL-1, and TNF-α compared to that of indomethacin and morphine and a similar binding score to nNOS and IL-10 relative to that of indomethacin. In the in vivo study, tadalafil, after an hour of formalin administration, inhibited significantly paw edema, similar to indomethacin. Furthermore, it significantly increased the withdrawal force in the von Frey filament test as compared to the negative control, which was similar to the effect observed with indomethacin and morphine. The RT-PCR revealed that tadalafil reduced significantly the iNOS, COX-2, and TNF-α gene expressions but had no effect on nNOS, IL 1, and IL10. In vitro ELISA tests confirmed the inhibition of iNOS, COX-2, and TNF-α. CONCLUSION Tadalafil probably exerts its analgesic effect through the simultaneous inhibition of iNOS, COX-2, and TNF-α, which is not the case with other nonsteroidal anti-inflammatory drugs. Nevertheless, further studies are required to confirm its mechanism.
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Affiliation(s)
- Souraya Domiati
- Department
of Pharmacology and Therapeutics, Faculty of Pharmacy, Beirut Arab University, Beirut1107 2809, Lebanon
| | - Khaled Abd El Galil
- Department
of Pharmaceutical Sciences, Faculty of Pharmacy, Beirut Arab University, Beirut1107 2809, Lebanon
- Department
of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura35516, Egypt
| | - Hanan Ragab
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria21521, Egypt
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9
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First Anti-Inflammatory Peptide AnmTX Sco 9a-1 from the Swimming Sea Anemone Stomphia coccinea. Biomolecules 2022; 12:biom12111705. [DOI: 10.3390/biom12111705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
A novel peptide AnmTX Sco 9a-1 with the β-hairpin fold was isolated from the swimming sea anemone Stomphia coccinea (Actinostolidae family). The peptide consists of 28 amino acid residues, including modified hydroxyproline residue, and its measured molecular mass is 2960 Da. The peptide was not toxic on mice; however, it stimulated their exploratory motivation and active search behavior, and demonstrated an anti-anxiety effect. AnmTX Sco 9a-1 at doses of 0.1 and 1 mg/kg reduced the volume of edema during 24 h better than the nonsteroidal anti-inflammatory drug, Diclofenac, at dose of 1 mg/kg in a model of acute local λ-carrageenan-induced inflammation. ELISA analysis of the animal’s blood showed that peptide at a dose of 1 mg/kg reduced the content of tumor necrosis factor-α (TNF-α), a pro-inflammatory mediator responsible in the edema development, up to the level of TNF-α in the intact group. Besides, AnmTX Sco 9a-1 demonstrated a significant analgesic effect on acute pain sensitivity in the carrageenan-induced thermal hyperalgesia model at doses of 0.1 and 1 mg/kg. Activity of AnmTX Sco 9a-1 was shown not to be associated with modulation of nociceptive ASIC channels.
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10
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Zhai R, Snyder J, Montgomery S, Sato PY. Double life: How GRK2 and β-arrestin signaling participate in diseases. Cell Signal 2022; 94:110333. [PMID: 35430346 PMCID: PMC9929935 DOI: 10.1016/j.cellsig.2022.110333] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 11/03/2022]
Abstract
G-protein coupled receptor (GPCR) kinases (GRKs) and β-arrestins play key roles in GPCR and non-GPCR cellular responses. In fact, GRKs and arrestins are involved in a plethora of pathways vital for physiological maintenance of inter- and intracellular communication. Here we review decades of research literature spanning from the discovery, identification of key structural elements, and findings supporting the diverse roles of these proteins in GPCR-mediated pathways. We then describe how GRK2 and β-arrestins partake in non-GPCR signaling and briefly summarize their involvement in various pathologies. We conclude by presenting gaps in knowledge and our prospective on the promising pharmacological potential in targeting these proteins and/or downstream signaling. Future research is warranted and paramount for untangling these novel and promising roles for GRK2 and arrestins in metabolism and disease progression.
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Affiliation(s)
| | | | | | - Priscila Y. Sato
- Corresponding author at: Drexel University College of Medicine, Department of Pharmacology and Physiology, 245 N 15th Street, NCB 8152, Philadelphia, PA 19102, USA. (P.Y. Sato)
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11
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Iannone LF, Nassini R, Patacchini R, Geppetti P, De Logu F. Neuronal and non-neuronal TRPA1 as therapeutic targets for pain and headache relief. Temperature (Austin) 2022; 10:50-66. [PMID: 37187829 PMCID: PMC10177743 DOI: 10.1080/23328940.2022.2075218] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 10/18/2022] Open
Abstract
The transient receptor potential ankyrin 1 (TRPA1), a member of the TRP superfamily of channels, has a major role in different types of pain. TRPA1 is primarily localized to a subpopulation of primary sensory neurons of the trigeminal, vagal, and dorsal root ganglia. This subset of nociceptors produces and releases the neuropeptide substance P (SP) and calcitonin gene-related peptide (CGRP), which mediate neurogenic inflammation. TRPA1 is characterized by unique sensitivity for an unprecedented number of reactive byproducts of oxidative, nitrative, and carbonylic stress and to be activated by several chemically heterogenous, exogenous, and endogenous compounds. Recent preclinical evidence has revealed that expression of TRPA1 is not limited to neurons, but its functional role has been reported in central and peripheral glial cells. In particular, Schwann cell TRPA1 was recently implicated in sustaining mechanical and thermal (cold) hypersensitivity in mouse models of macrophage-dependent and macrophage-independent inflammatory, neuropathic, cancer, and migraine pain. Some analgesics and herbal medicines/natural products widely used for the acute treatment of pain and headache have shown some inhibitory action at TRPA1. A series of high affinity and selective TRPA1 antagonists have been developed and are currently being tested in phase I and phase II clinical trials for different diseases with a prominent pain component. Abbreviations: 4-HNE, 4-hydroxynonenal; ADH-2, alcohol dehydrogenase-2; AITC, allyl isothiocyanate; ANKTD, ankyrin-like protein with transmembrane domains protein 1; B2 receptor, bradykinin 2 receptor; CIPN, chemotherapeutic-induced peripheral neuropathy; CGRP, calcitonin gene related peptide; CRISPR, clustered regularly interspaced short palindromic repeats; CNS, central nervous system; COOH, carboxylic terminal; CpG, C-phosphate-G; DRG, dorsal root ganglia; EP, prostaglandins; GPCR, G-protein-coupled receptors; GTN, glyceryl trinitrate; MAPK, mitogen-activated protein kinase; M-CSF, macrophage-colony stimulating factor; NAPQI, N-Acetyl parabenzoquinone-imine; NGF, nerve growth factor; NH2, amino terminal; NKA, neurokinin A; NO, nitric oxide; NRS, numerical rating scale; PAR2, protease-activated receptor 2; PMA, periorbital mechanical allodynia; PLC, phospholipase C; PKC, protein kinase C; pSNL, partial sciatic nerve ligation; RCS, reactive carbonyl species; ROS, reactive oxygen species; RNS, nitrogen oxygen species; SP, substance P; TG, trigeminal ganglion; THC, Δ9-tetrahydrocannabinol; TrkA, neurotrophic receptor tyrosine kinase A; TRP, transient receptor potential; TRPC, TRP canonical; TRPM, TRP melastatin; TRPP, TRP polycystin; TRPM, TRP mucolipin; TRPA, TRP ankyrin; TRPV, TRP vanilloid; VG, vagal ganglion.
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Affiliation(s)
- Luigi F. Iannone
- Headache Center and Clinical Pharmacology Unit, Careggi University Hospital, Florence, Italy
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Romina Nassini
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Riccardo Patacchini
- Corporate Drug Development, Chiesi Farmaceutici S.p.A, Nuovo Centro Ricerche, Parma, Italy
| | - Pierangelo Geppetti
- Headache Center and Clinical Pharmacology Unit, Careggi University Hospital, Florence, Italy
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Francesco De Logu
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
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12
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Fan Y, Yang J, Song X, He J, Huang S, Chen J, Jiang S, Yu L, Zhou Y, Cao X, Ji X, Zhang Y. Systematic analysis of inflammation and pain pathways in a mouse model of gout. Mol Pain 2022; 18:17448069221097760. [PMID: 35430901 PMCID: PMC9069606 DOI: 10.1177/17448069221097760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Gout is a prevalent and painful inflammatory arthritis, and its global burden continues to rise. Intense pain induced by gout attacks is a major complication of gout. However, systematic studies of gout inflammation and pain are lacking. Using a monosodium urate (MSU) crystal-induced gout model, we performed genome-wide transcriptome analysis of the inflamed ankle joint, dorsal root ganglion (DRG), and spinal cord of gouty mice. Our results revealed important transcriptional changes, including highly elevated inflammation and broad activation of immune pathways in both the joint and the nervous system, in gouty mice. Integrated analysis showed that there was a remarkable overlap between our RNAseq and human genome-wide association study (GWAS) of gout; for example, the risk gene, stanniocalcin-1 (STC1) showed significant upregulation in all three tissues. Interestingly, when compared to the transcriptomes of human osteoarthritis (OA) and rheumatoid arthritis (RA) joint tissues, we identified significant upregulation of cAMP/cyclic nucleotide-mediated signaling shared between gouty mice and human OA with high knee pain, which may provide excellent drug targets to relieve gout pain. Furthermore, we investigated the common and distinct transcriptomic features of gouty, inflammatory pain, and neuropathic pain mouse models in their DRG and spinal cord tissues. Moreover, we discovered distinct sets of genes with significant differential alternative splicing or differential transcript usage in each tissue, which were largely not detected by conventional differential gene expression analysis approaches. Based on these results, our study provided a more accurate and comprehensive depiction of transcriptomic alterations related to gout inflammation and pain.
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Affiliation(s)
| | | | | | | | | | | | | | - Lei Yu
- Wenzhou Medical University
| | | | | | | | - Yi Zhang
- Institute of Genomic MedicineWenzhou Medical University
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13
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Aguilera-Lizarraga J, Hussein H, Boeckxstaens GE. Immune activation in irritable bowel syndrome: what is the evidence? Nat Rev Immunol 2022; 22:674-686. [PMID: 35296814 DOI: 10.1038/s41577-022-00700-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2022] [Indexed: 12/15/2022]
Abstract
Irritable bowel syndrome (IBS) is a chronic functional gastrointestinal disorder that is characterized by abdominal pain and an altered defecation pattern. It affects between 5 and 20% of the general population and can seriously impact quality of life. The pathophysiology of IBS is rather complex and multifactorial including, for example, altered signalling by the gut-brain axis, dysbiosis, abnormal visceral pain signalling and intestinal immune activation. The latter has gained particular interest in recent years, with growing insight into the bidirectional communication between the nervous system and the immune system. In this Review, we detail the current evidence suggesting that immune activation contributes to the pathology seen in patients with IBS and discuss the potential mechanisms involved. Moreover, we describe how immune mediators, particularly those released by mast cells, can directly activate or sensitize pain-transmitting nerves, leading to increased pain signalling and abdominal pain. Finally, we discuss the potential of interventions targeting immune activation as a new therapeutic strategy for patients suffering from IBS.
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Affiliation(s)
- Javier Aguilera-Lizarraga
- Laboratory for Intestinal Neuroimmune Interactions, Translational Research Centre for Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Hind Hussein
- Laboratory for Intestinal Neuroimmune Interactions, Translational Research Centre for Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Guy E Boeckxstaens
- Laboratory for Intestinal Neuroimmune Interactions, Translational Research Centre for Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium.
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14
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O. M. F. da Silveira I, S. B. Moslaves I, A. I. Muller J, R. W. Hortelan C, Teibel Okuyama T, Fernandes J, Badenoch B, Janaína de Campos L, Almeida LD, Mohammad J, C. F. Martins A, Beatriz A, da Silva Júnior EN, Cristina Toffoli-Kadri M, da Silva Gomes R. Design, Synthesis and in vivo Evaluation of 1,4-dioxo-2-butenyl Aryl Amine Derivatives as a Promising Anti-inflammatory Drug Prototype. Bioorg Chem 2022; 124:105754. [DOI: 10.1016/j.bioorg.2022.105754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 11/16/2022]
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15
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Obese E, Biney RP, Henneh IT, Anokwah D, Adakudugu EA, Woode E, Ameyaw EO. Antinociceptive effect of the hydroethanolic leaf extract of Calotropis procera (Ait) R. Br. (Apocynaceae): Possible involvement of glutamatergic, cytokines, opioidergic and adenosinergic pathways. JOURNAL OF ETHNOPHARMACOLOGY 2021; 278:114261. [PMID: 34111540 DOI: 10.1016/j.jep.2021.114261] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/12/2021] [Accepted: 05/25/2021] [Indexed: 05/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pain remains real and still a major problem in clinical medicine which requires new agents with improved efficacy for more therapeutic benefits. Plant sources can serve as a basis for the search for some novel drugs hence the analgesic effects of the hydroethanolic extract of Calotropis procera (CPE) which is widespread in Ghana and other tropical areas and used in folkloric medicine for painful and inflammatory conditions was evaluated. MATERIALS AND METHODS The analgesic properties of orally administered CPE at doses of 30, 100, and 300 mg/kg were evaluated in thermal (tail immersion), chemical (acetic acid-writhing, formalin-induced paw licking, glutamate-induced nociception) and mechanical (Randall-Selitto) tests for analgesia. The involvement of tumour necrosis factor-alpha (TNF-α), interleukin 1β (IL 1β), bradykinin, and prostaglandin E2 (PGE2) on the analgesic effects of CPE were also evaluated in hypernociception assays measuring mechanical pain thresholds. RESULTS The latency of tail withdrawal in the tail immersion test was significantly increased (p = 0.0001) while writhing induced by acetic acid was significantly reduced (p < 0.0001) on treatment with CPE (30-300 mg/kg). The extract also significantly inhibited both phase 1 and phase 2 nociceptive states induced by formalin comparable to morphine (p < 0.0001). Furthermore, the extract significantly attenuated hyper-nociception induced by TNF-α (p < 0.0001), interleukin 1β (p = 0.0102), bradykinin (p < 0.0001), and prostaglandin E2 (p < 0.0001). Additionally, glutamate-induced paw licking was reduced significantly (p < 0.05). The antinociceptive effects exhibited by CPE (100 mg/kg) in the formalin test was reversed by systemic administration of naloxone (2 mg/kg) and theophylline (5 mg/kg) but not glibenclamide (8 mg/kg), granisetron (2 mg/kg), atropine (3 mg/kg), yohimbine (3 mg/kg, p.o.) nor nifedipine (10 mg/kg). CONCLUSION Overall, the hydroethanolic leaf extract of Calotropis procera possesses analgesic properties that is mediated possibly through the glutaminergic, opioidergic, and adenosinergic pathways.
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Affiliation(s)
- Ernest Obese
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Robert P Biney
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Isaac T Henneh
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Daniel Anokwah
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Emmanuel A Adakudugu
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
| | - Elvis O Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana.
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16
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Biet M, Dansereau M, Sarret P, Dumaine R. The neuronal potassium current I A is a potential target for pain during chronic inflammation. Physiol Rep 2021; 9:e14975. [PMID: 34405579 PMCID: PMC8371350 DOI: 10.14814/phy2.14975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/10/2021] [Accepted: 06/25/2021] [Indexed: 11/24/2022] Open
Abstract
Voltage-gated ion channels play a key role in the action potential (AP) initiation and its propagation in sensory neurons. Modulation of their activity during chronic inflammation creates a persistent pain state. In this study, we sought to determine how peripheral inflammation caused by complete Freund's adjuvant (CFA) alters the fast sodium (INa ), L-type calcium (ICaL ), and potassium (IK ) currents in primary afferent fibers to increase nociception. In our model, intraplantar administration of CFA induced mechanical allodynia and thermal hyperalgesia at day 14 post-injection. Using whole-cell patch-clamp recording in dissociated small (C), medium (Aδ), and large-sized (Aβ) rat dorsal root ganglion (DRG) neurons, we found that CFA prolonged the AP duration and increased the amplitude of the tetrodotoxin-resistant (TTX-r) INa in Aβ fibers. In addition, CFA accelerated the recovery of INa from inactivation in C and Aδ nociceptive fibers but enhanced the late sodium current (INaL ) only in Aδ and Aβ neurons. Inflammation similarly reduced the amplitude of ICaL in each neuronal cell type. Fourteen days after injection, CFA reduced both components of IK (IKdr and IA ) in Aδ fibers. We also found that IA was significantly larger in C and Aδ neurons in normal conditions and during chronic inflammation. Our data, therefore, suggest that targeting the transient potassium current IA represents an efficient way to shift the balance toward antinociception during inflammation, since its activation will selectively decrease the AP duration in nociceptive fibers. Altogether, our data indicate that complex interactions between IK , INa , and ICaL reduce pain threshold by concomitantly enhancing the activity of nociceptive neurons and reducing the inhibitory action of Aβ fibers during chronic inflammation.
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MESH Headings
- Action Potentials
- Animals
- Calcium Channels, L-Type/metabolism
- Cells, Cultured
- Ganglia, Spinal/cytology
- Ganglia, Spinal/metabolism
- Ganglia, Spinal/physiology
- Male
- Neurons, Afferent/drug effects
- Neurons, Afferent/metabolism
- Neurons, Afferent/physiology
- Nociception
- Nociceptive Pain/metabolism
- Nociceptive Pain/physiopathology
- Potassium Channels, Voltage-Gated/metabolism
- Rats
- Rats, Sprague-Dawley
- Sodium Channel Blockers/pharmacology
- Sodium Channels/metabolism
- Tetrodotoxin/pharmacology
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Affiliation(s)
- Michael Biet
- Département de Pharmacologie et PhysiologieInstitut de pharmacologie de SherbrookeCentre de Recherche du Centre Hospitalier Universitaire de SherbrookeFaculté de médecine et des Sciences de la SantéUniversité de SherbrookeSherbrookeQuébecCanada
| | - Marc‐André Dansereau
- Département de Pharmacologie et PhysiologieInstitut de pharmacologie de SherbrookeCentre de Recherche du Centre Hospitalier Universitaire de SherbrookeFaculté de médecine et des Sciences de la SantéUniversité de SherbrookeSherbrookeQuébecCanada
| | - Philippe Sarret
- Département de Pharmacologie et PhysiologieInstitut de pharmacologie de SherbrookeCentre de Recherche du Centre Hospitalier Universitaire de SherbrookeFaculté de médecine et des Sciences de la SantéUniversité de SherbrookeSherbrookeQuébecCanada
| | - Robert Dumaine
- Département de Pharmacologie et PhysiologieInstitut de pharmacologie de SherbrookeCentre de Recherche du Centre Hospitalier Universitaire de SherbrookeFaculté de médecine et des Sciences de la SantéUniversité de SherbrookeSherbrookeQuébecCanada
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17
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Cheng J, Deng Y, Zhou J. Role of the Ubiquitin System in Chronic Pain. Front Mol Neurosci 2021; 14:674914. [PMID: 34122010 PMCID: PMC8194701 DOI: 10.3389/fnmol.2021.674914] [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] [Received: 03/02/2021] [Accepted: 04/12/2021] [Indexed: 01/02/2023] Open
Abstract
As a significant public health issue, chronic pain, mainly neuropathic pain (NP) and inflammatory pain, has a severe impact. The underlying mechanisms of chronic pain are enigmatic at present. The roles of ubiquitin have been demonstrated in various physiological and pathological conditions and underscore its potential as therapeutic targets. The dysfunction of the component of the ubiquitin system that occurs during chronic pain is rapidly being discovered. These results provide insight into potential molecular mechanisms of chronic pain. Chronic pain is regulated by ubiquitination, SUMOylation, ubiquitin ligase, and deubiquitinating enzyme (DUB), etc. Insight into the mechanism of the ubiquitin system regulating chronic pain might contribute to relevant therapeutic targets and the development of novel analgesics.
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Affiliation(s)
| | | | - Jun Zhou
- Department of Anesthesiology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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18
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Hogea A, Shah S, Jones F, Carver CM, Hao H, Liang C, Huang D, Du X, Gamper N. Junctophilin-4 facilitates inflammatory signalling at plasma membrane-endoplasmic reticulum junctions in sensory neurons. J Physiol 2021; 599:2103-2123. [PMID: 33569781 DOI: 10.1113/jp281331] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/02/2021] [Indexed: 12/21/2022] Open
Abstract
KEY POINTS Rat somatosensory neurons express a junctional protein, junctophilin-4 (JPH4) JPH4 is necessary for the formation of store operated Ca2+ entry (SOCE) complex at the junctions between plasma membrane and endoplasmic reticulum in these neurons. Knockdown of JPH4 impairs endoplasmic reticulum Ca2+ store refill and junctional Ca2+ signalling in sensory neurons. In vivo knockdown of JPH4 in the dorsal root ganglion (DRG) sensory neurons significantly attenuated experimentally induced inflammatory pain in rats. Junctional nanodomain Ca2+ signalling maintained by JPH4 is an important contributor to the inflammatory pain mechanisms. ABSTRACT Junctions of endoplasmic reticulum and plasma membrane (ER-PM junctions) form signalling nanodomains in eukaryotic cells. ER-PM junctions are present in peripheral sensory neurons and are important for the fidelity of G protein coupled receptor (GPCR) signalling. Yet little is known about the assembly, maintenance and physiological role of these junctions in somatosensory transduction. Using fluorescence imaging, proximity ligation, super-resolution microscopy, in vitro and in vivo gene knockdown we demonstrate that a member of the junctophilin protein family, junctophilin-4 (JPH4), is necessary for the formation of store operated Ca2+ entry (SOCE) complex at the ER-PM junctions in rat somatosensory neurons. Thus we show that JPH4 localises to the ER-PM junctional areas and co-clusters with SOCE proteins STIM1 and Orai1 upon ER Ca2+ store depletion. Knockdown of JPH4 impairs SOCE and ER Ca2+ store refill in sensory neurons. Furthermore, we demonstrate a key role of the JPH4 and junctional nanodomain Ca2+ signalling in the pain-like response induced by the inflammatory mediator bradykinin. Indeed, an in vivo knockdown of JPH4 in the dorsal root ganglion (DRG) sensory neurons significantly shortened the duration of nocifensive behaviour induced by hindpaw injection of bradykinin in rats. Since the ER supplies Ca2+ for the excitatory action of multiple inflammatory mediators, we suggest that junctional nanodomain Ca2+ signalling maintained by JPH4 is an important contributor to the inflammatory pain mechanisms.
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Affiliation(s)
- Alexandra Hogea
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Shihab Shah
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Frederick Jones
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Chase M Carver
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Han Hao
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Ce Liang
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Dongyang Huang
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Xiaona Du
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Nikita Gamper
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK.,Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
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19
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Beynon AM, Hebert JJ, Beales DJ, Jacques A, Walker BF. Multi-trajectory analysis of C-reactive protein and low back pain from adolescence to early adulthood. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2021; 30:1028-1034. [PMID: 33392755 DOI: 10.1007/s00586-020-06677-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/05/2020] [Accepted: 11/22/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE To identify low back pain (LBP) trajectories from early adolescence through to early adulthood and to investigate whether sustained levels of elevated subclinical C-reactive protein (CRP) are linked with these LBP trajectories. METHODS We analysed longitudinal data from 1513 participants who were enrolled in the Raine Study cohort. Data on LBP with impact on daily living and CRP were collected at the ages of 14, 17, 20, and 22. We constructed group-based trajectory models to identify discrete trajectories of LBP with impact. We then evaluated how the CRP trajectories and the LBP with impact trajectories evolved jointly over time using a multi-trajectory analysis. RESULTS The model identified three LBP trajectories. One subgroup included almost half the participants (46.1%) who had a consistently low probability of LBP. Another subgroup comprising 43.5% of participants had an increasing probability of LBP, while one in ten participants (10.4%) had a decreasing probability of LBP. There were no associations between elevated CRP and LBP trajectory subgroup membership. CONCLUSION Although young people follow distinct trajectories of LBP, CRP trajectories do not appear to be a distinguishing factor of the LBP trajectories. Previously reported associations between CRP and LBP may be explained by comorbidity or other factors. Future studies undertaking trajectory analysis should consider comorbidity clusters. LEVEL OF EVIDENCE I Diagnostic: individual cross-sectional studies with the consistently applied reference standard and blinding.
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Affiliation(s)
- Amber M Beynon
- Murdoch University, College of Science, Health Engineering and Education, Murdoch, WA, Australia.
| | - Jeffrey J Hebert
- Murdoch University, College of Science, Health Engineering and Education, Murdoch, WA, Australia.,Faculty of Kinesiology, University of New Brunswick, Fredericton, NB, Canada
| | - Darren J Beales
- School of Physiotherapy and Exercise Science, Curtin University, Bentley, WA, Australia
| | - Angela Jacques
- School of Physiotherapy and Exercise Science, Curtin University, Bentley, WA, Australia
| | - Bruce F Walker
- Murdoch University, College of Science, Health Engineering and Education, Murdoch, WA, Australia
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20
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Vigil FA, Bozdemir E, Bugay V, Chun SH, Hobbs M, Sanchez I, Hastings SD, Veraza RJ, Holstein DM, Sprague SM, M Carver C, Cavazos JE, Brenner R, Lechleiter JD, Shapiro MS. Prevention of brain damage after traumatic brain injury by pharmacological enhancement of KCNQ (Kv7, "M-type") K + currents in neurons. J Cereb Blood Flow Metab 2020; 40:1256-1273. [PMID: 31272312 PMCID: PMC7238379 DOI: 10.1177/0271678x19857818] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nearly three million people in the USA suffer traumatic brain injury (TBI) yearly; however, there are no pre- or post-TBI treatment options available. KCNQ2-5 voltage-gated K+ channels underlie the neuronal "M current", which plays a dominant role in the regulation of neuronal excitability. Our strategy towards prevention of TBI-induced brain damage is predicated on the suggested hyper-excitability of neurons induced by TBIs, and the decrease in neuronal excitation upon pharmacological augmentation of M/KCNQ K+ currents. Seizures are very common after a TBI, making further seizures and development of epilepsy disease more likely. Our hypothesis is that TBI-induced hyperexcitability and ischemia/hypoxia lead to metabolic stress, cell death and a maladaptive inflammatory response that causes further downstream morbidity. Using the mouse controlled closed-cortical impact blunt TBI model, we found that systemic administration of the prototype M-channel "opener", retigabine (RTG), 30 min after TBI, reduces the post-TBI cascade of events, including spontaneous seizures, enhanced susceptibility to chemo-convulsants, metabolic stress, inflammatory responses, blood-brain barrier breakdown, and cell death. This work suggests that acutely reducing neuronal excitability and energy demand via M-current enhancement may be a novel model of therapeutic intervention against post-TBI brain damage and dysfunction.
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Affiliation(s)
- Fabio A Vigil
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Eda Bozdemir
- Department of Cell Systems and Anatomy, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Vladislav Bugay
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Sang H Chun
- Department of Cell Systems and Anatomy, University of Texas Health San Antonio, San Antonio, TX, USA
| | - MaryAnn Hobbs
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Isamar Sanchez
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Shayne D Hastings
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Rafael J Veraza
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Deborah M Holstein
- Department of Cell Systems and Anatomy, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Shane M Sprague
- Department of Neurosurgery, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Chase M Carver
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Jose E Cavazos
- Department of Neurology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Robert Brenner
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - James D Lechleiter
- Department of Cell Systems and Anatomy, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Mark S Shapiro
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
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21
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Atmaramani RR, Black BJ, de la Peña JB, Campbell ZT, Pancrazio JJ. Conserved Expression of Nav1.7 and Nav1.8 Contribute to the Spontaneous and Thermally Evoked Excitability in IL-6 and NGF-Sensitized Adult Dorsal Root Ganglion Neurons In Vitro. Bioengineering (Basel) 2020; 7:bioengineering7020044. [PMID: 32429423 PMCID: PMC7356605 DOI: 10.3390/bioengineering7020044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 02/06/2023] Open
Abstract
Sensory neurons respond to noxious stimuli by relaying information from the periphery to the central nervous system via action potentials driven by voltage-gated sodium channels, specifically Nav1.7 and Nav1.8. These channels play a key role in the manifestation of inflammatory pain. The ability to screen compounds that modulate voltage-gated sodium channels using cell-based assays assumes that key channels present in vivo is maintained in vitro. Prior electrophysiological work in vitro utilized acutely dissociated tissues, however, maintaining this preparation for long periods is difficult. A potential alternative involves multi-electrode arrays which permit long-term measurements of neural spike activity and are well suited for assessing persistent sensitization consistent with chronic pain. Here, we demonstrate that the addition of two inflammatory mediators associated with chronic inflammatory pain, nerve growth factor (NGF) and interleukin-6 (IL-6), to adult DRG neurons increases their firing rates on multi-electrode arrays in vitro. Nav1.7 and Nav1.8 proteins are readily detected in cultured neurons and contribute to evoked activity. The blockade of both Nav1.7 and Nav1.8, has a profound impact on thermally evoked firing after treatment with IL-6 and NGF. This work underscores the utility of multi-electrode arrays for pharmacological studies of sensory neurons and may facilitate the discovery and mechanistic analyses of anti-nociceptive compounds.
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Affiliation(s)
- Rahul R. Atmaramani
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; (R.R.A.); (B.J.B.)
- Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX 75080, USA; (J.B.d.l.P.); (Z.T.C.)
| | - Bryan J. Black
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; (R.R.A.); (B.J.B.)
- Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX 75080, USA; (J.B.d.l.P.); (Z.T.C.)
| | - June Bryan de la Peña
- Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX 75080, USA; (J.B.d.l.P.); (Z.T.C.)
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Zachary T. Campbell
- Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX 75080, USA; (J.B.d.l.P.); (Z.T.C.)
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Joseph J. Pancrazio
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; (R.R.A.); (B.J.B.)
- Correspondence: ; Tel.: +1-972-883-2138
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22
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Baeza-Flores GDC, Rodríguez-Palma EJ, Reyes-Pérez V, Guzmán-Priego CG, Torres-López JE. Antinociceptive effects of ceftriaxone in formalin-induced nociception. Drug Dev Res 2020; 81:728-735. [PMID: 32394536 DOI: 10.1002/ddr.21680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 11/06/2022]
Abstract
Ceftriaxone (CFX) is a β-lactam antibiotic with analgesic properties. However, its role in the formalin-induced nociception remains unknown. The purpose of this study was to investigate the antinociceptive effect of CFX in the 1% formalin test in rats. Formalin induced a typical nociceptive response (flinching behavior) of two phases. Local peripheral pretreatment (20 min) with CFX (400-800 μg/paw) slightly attenuated the flinching behavior in phase 2, but not phase 1. Acute intraperitoneal pretreatment (20 min) also reduced phase 2 of the formalin test. In both cases, CFX induced a dose-dependent antinociception. We also tested the effect of CFX 1 day after its administration and in two schedules of repeated administration. One-day pretreatment with CFX (50-400 mg/kg, ip) induced a dose-dependent antinociceptive effect in formalin-treated rats. Repeated administration (daily during 3 or 7 days) with CFX (50-400 mg/kg, ip) diminished formalin-induced nociception. Results suggest that local or systemic as well as single or repeated administration of CFX reduces formalin-induced nociception.
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Affiliation(s)
- Guadalupe Del Carmen Baeza-Flores
- Pain Mechanisms Laboratory, División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico
| | - Erick J Rodríguez-Palma
- Neurobiology of Pain, Departamento de Farmacobiología, Cinvestav, Sede Sur, Mexico City, Mexico
| | | | - Crystell G Guzmán-Priego
- Pain Mechanisms Laboratory, División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico
| | - Jorge E Torres-López
- Pain Mechanisms Laboratory, División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico.,Department of Anaesthetics, Hospital Regional de Alta Especialidad "Dr. Juan Graham Casasús", Villahermosa, Mexico
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23
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Khammissa RAG, Ballyram R, Fourie J, Bouckaert M, Lemmer J, Feller L. Selected pathobiological features and principles of pharmacological pain management. J Int Med Res 2020; 48:300060520903653. [PMID: 32408839 PMCID: PMC7232056 DOI: 10.1177/0300060520903653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Pain induced by inflammation and nerve injury arises from abnormal neural activity of primary afferent nociceptors in response to tissue damage, which causes long-term elevation of the sensitivity and responsiveness of spinal cord neurons. Inflammatory pain typically resolves following resolution of inflammation; however, nerve injury-either peripheral or central-may cause persistent neuropathic pain, which frequently manifests as hyperalgesia or allodynia. Neuralgias, malignant metastatic bone disease, and diabetic neuropathy are some of the conditions associated with severe, often unremitting chronic pain that is both physically and psychologically debilitating or disabling. Therefore, optimal pain management for patients with chronic neuropathic pain requires a multimodal approach that comprises pharmacological and psychological interventions. Non-opioid analgesics (e.g., paracetamol, aspirin, or other non-steroidal anti-inflammatory drugs) are first-line agents used in the treatment of mild-to-moderate acute pain, while opioids of increasing potency are indicated for the treatment of persistent, moderate-to-severe inflammatory pain. N-methyl D-aspartate receptor antagonists, antidepressants, anticonvulsants, or a combination of these should be considered for the treatment of chronic neuropathic pain. This review discusses the various neural signals that mediate acute and chronic pain, as well as the general principles of pain management.
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Affiliation(s)
- Razia Abdool Gafaar Khammissa
- Department of Periodontology and Oral Medicine, Sefako Makgatho
University, Pretoria, South Africa
- Department of Periodontics and Oral Medicine, University of
Pretoria, Pretoria, South Africa
| | - Raoul Ballyram
- Department of Periodontology and Oral Medicine, Sefako Makgatho
University, Pretoria, South Africa
| | - Jeanine Fourie
- Department of Periodontology and Oral Medicine, Sefako Makgatho
University, Pretoria, South Africa
| | - Michael Bouckaert
- Department of Maxillofacial and Oral Surgery, Sefako Makgatho
University, Pretoria, South Africa
| | - Johan Lemmer
- Department of Periodontology and Oral Medicine, Sefako Makgatho
University, Pretoria, South Africa
| | - Liviu Feller
- Department of Periodontology and Oral Medicine, Sefako Makgatho
University, Pretoria, South Africa
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24
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Shah S, Carver CM, Mullen P, Milne S, Lukacs V, Shapiro MS, Gamper N. Local Ca 2+ signals couple activation of TRPV1 and ANO1 sensory ion channels. Sci Signal 2020; 13:13/629/eaaw7963. [PMID: 32345727 DOI: 10.1126/scisignal.aaw7963] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
ANO1 (TMEM16A) is a Ca2+-activated Cl- channel (CaCC) expressed in peripheral somatosensory neurons that are activated by painful (noxious) stimuli. These neurons also express the Ca2+-permeable channel and noxious heat sensor TRPV1, which can activate ANO1. Here, we revealed an intricate mechanism of TRPV1-ANO1 channel coupling in rat dorsal root ganglion (DRG) neurons. Simultaneous optical monitoring of CaCC activity and Ca2+ dynamics revealed that the TRPV1 ligand capsaicin activated CaCCs. However, depletion of endoplasmic reticulum (ER) Ca2+ stores reduced capsaicin-induced Ca2+ increases and CaCC activation, suggesting that ER Ca2+ release contributed to TRPV1-induced CaCC activation. ER store depletion by plasma membrane-localized TRPV1 channels was demonstrated with an ER-localized Ca2+ sensor in neurons exposed to a cell-impermeable TRPV1 ligand. Proximity ligation assays established that ANO1, TRPV1, and the IP3 receptor IP3R1 were often found in close proximity to each other. Stochastic optical reconstruction microscopy (STORM) confirmed the close association between all three channels in DRG neurons. Together, our data reveal the existence of ANO1-containing multichannel nanodomains in DRG neurons and suggest that coupling between TRPV1 and ANO1 requires ER Ca2+ release, which may be necessary to enhance ANO1 activation.
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Affiliation(s)
- Shihab Shah
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Chase M Carver
- Department of Cell and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Pierce Mullen
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Stephen Milne
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Viktor Lukacs
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Mark S Shapiro
- Department of Cell and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Nikita Gamper
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK. .,Department of Pharmacology, Hebei Medical University, Shijiazhuang 050017, People's Republic of China
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25
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Role of Potassium Ions Quantum Tunneling in the Pathophysiology of Phantom Limb Pain. Brain Sci 2020; 10:brainsci10040241. [PMID: 32325702 PMCID: PMC7226264 DOI: 10.3390/brainsci10040241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 12/19/2022] Open
Abstract
(1) Background: multiple theories were proposed to explain the phenomenon of phantom limb pain (PLP). Nevertheless, the phenomenon is still shrouded in mystery. The aim of this study is to explore the phenomenon from a new perspective, where quantum tunneling of ions, a promising field in medical practice, might play a major role. (2) Methods: investigators designed a quantum mathematical model based on the Schrödinger equation to examine the probability of potassium ions quantum tunneling through closed membrane potassium channels to the inside of phantom axons, leading to the generation of action potential. (3) Results: the model suggests that the probability of action potential induction at a certain region of the membrane of phantom neurons, when a neuron of the stump area is stimulated over 1 mm2 surface area of the membrane available for tunneling is 1.04 × 10−2. Furthermore, upon considering two probabilities of potassium channelopathies, one that decreased the energy of the barrier by 25% and another one by 50%, the tunneling probability became 1.22 × 10−8 and 3.86 × 10−4, respectively. (4) Conclusion: quantum models of potassium ions can provide a reliable theoretical hypothesis to unveil part of the ambiguity behind PLP.
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26
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Jang Y, Kim M, Hwang SW. Molecular mechanisms underlying the actions of arachidonic acid-derived prostaglandins on peripheral nociception. J Neuroinflammation 2020; 17:30. [PMID: 31969159 PMCID: PMC6975075 DOI: 10.1186/s12974-020-1703-1] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/06/2020] [Indexed: 12/30/2022] Open
Abstract
Arachidonic acid-derived prostaglandins not only contribute to the development of inflammation as intercellular pro-inflammatory mediators, but also promote the excitability of the peripheral somatosensory system, contributing to pain exacerbation. Peripheral tissues undergo many forms of diseases that are frequently accompanied by inflammation. The somatosensory nerves innervating the inflamed areas experience heightened excitability and generate and transmit pain signals. Extensive studies have been carried out to elucidate how prostaglandins play their roles for such signaling at the cellular and molecular levels. Here, we briefly summarize the roles of arachidonic acid-derived prostaglandins, focusing on four prostaglandins and one thromboxane, particularly in terms of their actions on afferent nociceptors. We discuss the biosynthesis of the prostaglandins, their specific action sites, the pathological alteration of the expression levels of related proteins, the neuronal outcomes of receptor stimulation, their correlation with behavioral nociception, and the pharmacological efficacy of their regulators. This overview will help to a better understanding of the pathological roles that prostaglandins play in the somatosensory system and to a finding of critical molecular contributors to normalizing pain.
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Affiliation(s)
- Yongwoo Jang
- Department of Psychiatry and Program in Neuroscience, McLean Hospital, Harvard Medical School, Belmont, MA, 02478, USA.,Department of Biomedical Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Minseok Kim
- Department of Biomedical Sciences, Korea University, Seoul, 02841, South Korea
| | - Sun Wook Hwang
- Department of Biomedical Sciences, Korea University, Seoul, 02841, South Korea. .,Department of Physiology, College of Medicine, Korea University, Seoul, 02841, South Korea.
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27
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Role of Dysregulated Ion Channels in Sensory Neurons in Chronic Kidney Disease-Associated Pruritus. MEDICINES 2019; 6:medicines6040110. [PMID: 31766242 PMCID: PMC6963506 DOI: 10.3390/medicines6040110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/25/2019] [Accepted: 11/11/2019] [Indexed: 11/17/2022]
Abstract
Background: We investigated ion channels at the skin, including peripheral nerve endings, which serve as output machines and molecular integrators of many pruritic inputs mainly received by multiple G protein-coupled receptors (GPCRs). Methods: Based on the level of chronic kidney disease–associated pruritus (CKD-aP), subjects were divided into two groups: non-CKD-aP (no or slight pruritus; n = 12) and CKD-aP (mild, moderate, or severe pruritus; n = 11). Skin samples were obtained from the forearm or elbow during operations on arteriovenous fistulas. We measured ion channels expressed at the skin, including peripheral nerve endings by RT-PCR: Nav1.8, Kv1.4, Cav2.2, Cav3.2, BKCa, Anoctamin1, TRPV1, TRPA1, and ASIC. Results: Expression of Cav3.2, BKCa, and anoctamin1 was significantly elevated in patients with CKD-aP. On the other hand, expression of TRPV1 was significantly reduced in these patients. We observed no significant difference in the levels of Cav2.2 or ASIC between subjects with and without CKD-aP. TRPA1, Nav1.8, and Kv1.4 were not expressed. Conclusions: It was concluded that this greater difference in the expression of ion channels in the skin tissue including, specially cutaneous peripheral nerve endings in CKD patients with CKD-aP may increase generator potential related to itching.
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28
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Hung CY, Tan CH. TRP Channels in Nociception and Pathological Pain. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1099:13-27. [PMID: 30306511 DOI: 10.1007/978-981-13-1756-9_2] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Thermal and noxious stimuli are detected by specialized nerve endings, which transform the stimuli into electrical signals and transmit the signals into central nervous system to facilitate the perception of temperature and pain. Several members within the transient receptor potential (TRP) channel family serve as the sensors for temperature and noxious stimuli and are involved in the development of pathological pain, especially inflammatory pain. Various inflammatory mediators can sensitize and modulate the activation threshold of TRP channels and result in the development of inflammatory pain behaviors. A brief review of the role of TRP channels in nociception and the modulatory mechanisms of TRP channels by inflammatory mediators, focusing on TRPV1, TRPA1, and TRPM2, will be presented. Recent advances in the development of therapeutic strategies targeting against TRP channels will also be reviewed.
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Affiliation(s)
- Chen-Yu Hung
- Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Hsiang Tan
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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29
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Kaye AD, Garcia AJ, Hall OM, Jeha GM, Cramer KD, Granier AL, Kallurkar A, Cornett EM, Urman RD. Update on the pharmacogenomics of pain management. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2019; 12:125-143. [PMID: 31308726 PMCID: PMC6613192 DOI: 10.2147/pgpm.s179152] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/09/2019] [Indexed: 12/30/2022]
Abstract
Pharmacogenomics is the study of genetic variants that impact drug effects through changes in a drug’s pharmacokinetics and pharmacodynamics. Pharmacogenomics is being integrated into clinical pain management practice because variants in individual genes can be predictive of how a patient may respond to a drug treatment. Pain is subjective and is considered challenging to treat. Furthermore, pain patients do not respond to treatments in the same way, which makes it hard to issue a consistent treatment regimen for all pain conditions. Pharmacogenomics would bring consistency to the subjective nature of pain and could revolutionize the field of pain management by providing personalized medical care tailored to each patient based on their gene variants. Additionally, pharmacogenomics offers a solution to the opioid crisis by identifying potentially opioid-vulnerable patients who could be recommended a nonopioid treatment for their pain condition. The integration of pharmacogenomics into clinical practice creates better and safer healthcare practices for patients. In this article, we provide a comprehensive history of pharmacogenomics and pain management, and focus on up to date information on the pharmacogenomics of pain management, describing genes involved in pain, genes that may reduce or guard against pain and discuss specific pain management drugs and their genetic correlations.
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Affiliation(s)
- Alan David Kaye
- Department of Anesthesiology, LSU Health Sciences Center, New Orleans, LA, USA
| | - Andrew Jesse Garcia
- Department of Anesthesiology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - O Morgan Hall
- Department of Anesthesiology, Louisiana State University School of Medicine, New Orleans, LA, USA
| | - George M Jeha
- Department of Anesthesiology, LSU Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Kelsey D Cramer
- Department of Anesthesiology, LSU Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Amanda L Granier
- Department of Anesthesiology, LSU Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Anusha Kallurkar
- Department of Anesthesiology, LSU Health Shreveport, Shreveport, LA, USA
| | - Elyse M Cornett
- Department of Anesthesiology, LSU Health Shreveport, Shreveport, LA, USA
| | - Richard D Urman
- Department of Anesthesiology, Perioperative and Pain Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
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30
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Ramos PT, Pedra NS, Soares MSP, da Silveira EF, Oliveira PS, Grecco FB, da Silva LMC, Ferreira LM, Ribas DA, Gehrcke M, Felix AOC, Stefanello FM, Spanevello RM, Cruz L, Braganhol E. Ketoprofen-loaded rose hip oil nanocapsules attenuate chronic inflammatory response in a pre-clinical trial in mice. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109742. [PMID: 31349429 DOI: 10.1016/j.msec.2019.109742] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 04/03/2019] [Accepted: 05/11/2019] [Indexed: 12/13/2022]
Abstract
This study aimed to develop nanocapsules containing ketoprofen using rose hip oil (Keto-NC) as oil core, and to evaluate their anti-inflammatory activity in acute and chronic ear edema models in mice. Physicochemical characterization, drug release, photostability and cytotoxicity assays were performed for the developed Keto-NC formulations and compared to ketoprofen-loaded nanocapsules using medium chain triglycerides as oil core (Keto-MCT-NC). Anti-inflammatory activity of orally delivered KP (Ketoprofen-free; 10 mg.kg-1) or Keto-NC (2.5; 5; 10 mg.kg-1) was assessed in mouse acute and chronic ear edema induced by croton oil (CO). Edema histological characteristics were determined by H&E stain, and redox parameters were analyzed in blood plasma and erythrocytes. Keto-MCT-NC and Keto-NC did not exhibit differences regarding physicochemical parameters, including size diameters, polydispersity index, pH, Ketoprofen content, and encapsulation efficiency. However, Keto-NC, which contains rose hip oil as lipid core, decreased drug photodegradation under UVC radiation when compared to Keto-MCT-NC. KP or Keto-NC were not cytotoxic to keratinocyte cultures and produced equal edema inhibition in the acute protocol. Conversely, in the chronic protocol, Keto-NC was more effective in reducing edema (~60-70% on 7-9th days of treatment) when compared to KP (~40% on 8-9th days of treatment). This result was confirmed by histological analysis, which indicated reduction of edema and inflammatory infiltrate. A sub-therapeutic dose of Keto-NC (5 mg.kg-1) significantly reduced edema when compared to control. Finally, KP and Keto-NC exhibited similar effects on redox parameters, suggesting that the advantages associated with Ketoprofen nanoencapsulation did not involve oxidative stress pathways. The results showed that Keto-NC was more efficient than KP in reducing chronic inflammation. These data may be important for the development of strategies aiming treatment of chronic inflammatory diseases with fewer adverse effects.
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Affiliation(s)
- P T Ramos
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - N S Pedra
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - M S P Soares
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - E F da Silveira
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - P S Oliveira
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - F B Grecco
- Departamento de Patologia Animal, Faculdade de Veterinária, UFPel, Pelotas, RS, Brazil
| | - L M C da Silva
- Departamento de Patologia Animal, Faculdade de Veterinária, UFPel, Pelotas, RS, Brazil
| | - L M Ferreira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - D A Ribas
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - M Gehrcke
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - A O C Felix
- Biotério Central, UFPel, Pelotas, RS, Brazil
| | - F M Stefanello
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - R M Spanevello
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - L Cruz
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - E Braganhol
- Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil.
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Sun H, Lin AH, Ru F, Patil MJ, Meeker S, Lee LY, Undem BJ. KCNQ/M-channels regulate mouse vagal bronchopulmonary C-fiber excitability and cough sensitivity. JCI Insight 2019; 4:124467. [PMID: 30721152 DOI: 10.1172/jci.insight.124467] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 01/29/2019] [Indexed: 01/06/2023] Open
Abstract
Increased airway vagal sensory C-fiber activity contributes to the symptoms of inflammatory airway diseases. The KCNQ/Kv7/M-channel is a well-known determinant of neuronal excitability, yet whether it regulates the activity of vagal bronchopulmonary C-fibers and airway reflex sensitivity remains unknown. Here we addressed this issue using single-cell RT-PCR, patch clamp technique, extracellular recording of single vagal nerve fibers innervating the mouse lungs, and telemetric recording of cough in free-moving mice. Single-cell mRNA analysis and biophysical properties of M-current (IM) suggest that KCNQ3/Kv7.3 is the major M-channel subunit in mouse nodose neurons. The M-channel opener retigabine negatively shifted the voltage-dependent activation of IM, leading to membrane hyperpolarization, increased rheobase, and suppression of both evoked and spontaneous action potential (AP) firing in nodose neurons in an M-channel inhibitor XE991-sensitive manner. Retigabine also markedly suppressed the α,β-methylene ATP-induced AP firing in nodose C-fiber terminals innervating the mouse lungs, and coughing evoked by irritant gases in awake mice. In conclusion, KCNQ/M-channels play a role in regulating the excitability of vagal airway C-fibers at both the cell soma and nerve terminals. Drugs that open M-channels in airway sensory afferents may relieve the sufferings associated with pulmonary inflammatory diseases such as chronic coughing.
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Affiliation(s)
- Hui Sun
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - An-Hsuan Lin
- Department of Physiology, University of Kentucky, Lexington, Kentucky, USA
| | - Fei Ru
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Mayur J Patil
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sonya Meeker
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Lu-Yuan Lee
- Department of Physiology, University of Kentucky, Lexington, Kentucky, USA
| | - Bradley J Undem
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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de Freitas Pires A, Bezerra MM, Amorim RMF, do Nascimento FLF, Marinho MM, Moura RM, Silva MTL, Correia JLA, Cavada BS, Assreuy AMS, Nascimento KS. Lectin purified from Lonchocarpus campestris seeds inhibits inflammatory nociception. Int J Biol Macromol 2019; 125:53-60. [DOI: 10.1016/j.ijbiomac.2018.11.233] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/15/2018] [Accepted: 11/26/2018] [Indexed: 10/27/2022]
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Yudin Y, Rohacs T. Inhibitory G i/O-coupled receptors in somatosensory neurons: Potential therapeutic targets for novel analgesics. Mol Pain 2018; 14:1744806918763646. [PMID: 29580154 PMCID: PMC5882016 DOI: 10.1177/1744806918763646] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Primary sensory neurons in the dorsal root ganglia and trigeminal ganglia are responsible for sensing mechanical and thermal stimuli, as well as detecting tissue damage. These neurons express ion channels that respond to thermal, mechanical, or chemical cues, conduct action potentials, and mediate transmitter release. These neurons also express a large number of G-protein coupled receptors, which are major transducers for extracellular signaling molecules, and their activation usually modulates the primary transduction pathways. Receptors that couple to phospholipase C via heterotrimeric Gq/11 proteins and those that activate adenylate cyclase via Gs are considered excitatory; they positively regulate somatosensory transduction and they play roles in inflammatory sensitization and pain, and in some cases also in inducing itch. On the other hand, receptors that couple to Gi/o proteins, such as opioid or GABAB receptors, are generally inhibitory. Their activation counteracts the effect of Gs-stimulation by inhibiting adenylate cyclase, as well as exerts effects on ion channels, usually resulting in decreased excitability. This review will summarize knowledge on Gi-coupled receptors in sensory neurons, focusing on their roles in ion channel regulation and discuss their potential as targets for analgesic and antipruritic medications.
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Affiliation(s)
- Yevgen Yudin
- 1 Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Tibor Rohacs
- 1 Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, USA
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Sousa SG, Oliveira LA, de Aguiar Magalhães D, de Brito TV, Batista JA, Pereira CMC, de Souza Costa M, Mazulo JCR, de Carvalho Filgueiras M, Vasconselos DFP, da Silva DA, Barros FCN, Sombra VG, Freitas ALP, de Paula RCM, de Andrade Feitosa JP, dos Reis Barbosa AL. Chemical structure and anti-inflammatory effect of polysaccharide extracted from Morinda citrifolia Linn (Noni). Carbohydr Polym 2018; 197:515-523. [DOI: 10.1016/j.carbpol.2018.06.042] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 06/07/2018] [Accepted: 06/08/2018] [Indexed: 12/23/2022]
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Up-regulation of ASIC3 expression by β-estradiol. Neurosci Lett 2018; 684:200-204. [DOI: 10.1016/j.neulet.2018.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/08/2018] [Accepted: 08/11/2018] [Indexed: 02/06/2023]
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Du X, Gao H, Jaffe D, Zhang H, Gamper N. M-type K + channels in peripheral nociceptive pathways. Br J Pharmacol 2018; 175:2158-2172. [PMID: 28800673 PMCID: PMC5980636 DOI: 10.1111/bph.13978] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 07/17/2017] [Accepted: 08/03/2017] [Indexed: 12/22/2022] Open
Abstract
Pathological pain is a hyperexcitability disorder. Since the excitability of a neuron is set and controlled by a complement of ion channels it expresses, in order to understand and treat pain, we need to develop a mechanistic insight into the key ion channels controlling excitability within the mammalian pain pathways and how these ion channels are regulated and modulated in various physiological and pathophysiological settings. In this review, we will discuss the emerging data on the expression in pain pathways, functional role and modulation of a family of voltage-gated K+ channels called 'M channels' (KCNQ, Kv 7). M channels are increasingly recognized as important players in controlling pain signalling, especially within the peripheral somatosensory system. We will also discuss the therapeutic potential of M channels as analgesic drug targets. LINKED ARTICLES This article is part of a themed section on Recent Advances in Targeting Ion Channels to Treat Chronic Pain. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.12/issuetoc/.
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Affiliation(s)
- Xiaona Du
- Department of Pharmacology, The Key Laboratory of Neural and Vascular Biology, Ministry of EducationHebei Medical UniversityShijiazhuangChina
- The Key Laboratory of New Drug Pharmacology and ToxicologyShijiazhuangHebei ProvinceChina
| | - Haixia Gao
- Department of Pharmacology, The Key Laboratory of Neural and Vascular Biology, Ministry of EducationHebei Medical UniversityShijiazhuangChina
- The Key Laboratory of New Drug Pharmacology and ToxicologyShijiazhuangHebei ProvinceChina
- School of Biomedical Sciences, Faculty of Biological SciencesUniversity of LeedsLeedsUK
| | - David Jaffe
- Department of Biology, UTSA Neurosciences InstituteUniversity of Texas at San AntonioSan AntonioTXUSA
| | - Hailin Zhang
- Department of Pharmacology, The Key Laboratory of Neural and Vascular Biology, Ministry of EducationHebei Medical UniversityShijiazhuangChina
- The Key Laboratory of New Drug Pharmacology and ToxicologyShijiazhuangHebei ProvinceChina
| | - Nikita Gamper
- Department of Pharmacology, The Key Laboratory of Neural and Vascular Biology, Ministry of EducationHebei Medical UniversityShijiazhuangChina
- The Key Laboratory of New Drug Pharmacology and ToxicologyShijiazhuangHebei ProvinceChina
- School of Biomedical Sciences, Faculty of Biological SciencesUniversity of LeedsLeedsUK
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Mehanna MM, Domiati S, Nakkash Chmaisse H, El Mallah A. Antinociceptive effect of tadalafil in various pain models: Involvement of opioid receptors and nitric oxide cyclic GMP pathway. Toxicol Appl Pharmacol 2018; 352:170-175. [PMID: 29777732 DOI: 10.1016/j.taap.2018.05.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/08/2018] [Accepted: 05/14/2018] [Indexed: 12/12/2022]
Abstract
Nitric oxide has been proven to play an important role in nociception, accordingly, its promoters, phosphodiesterase inhibitors have been investigated as pain response modulators. Aiming to evaluate the central antinociceptive effect of tadalafil, a phosphodiesterase 5 inhibitor, and to determine its EC50, tail flick and hot plate tests were employed. On the other hand, tadalafil antinociceptive peripheral effect was assessed through acetic acid-induced writhing model. Formalin test was used to appraise both non-inflammatory and inflammatory pain responses. In order to elaborate the involvement of opioid receptors and nitric oxide/cyclic guanosine monophosphate/potassium-ATP pathway in tadalafil-induced analgesia, mice were pretreated with naloxone, l-nitro-arginine-methyl-ester (l-NAME), methylene blue, and glibenclamide. The results illustrated that tadalafil had a significant antinociceptive effect in the tail flick, hot plate, acetic acid-induced writhing and formalin tests indicating the involvement of peripheral and central analgesic mechanisms. Moreover, tadalafil mechanism of action involved several receptors and mediators, specifically NO/cGMP pathway and opioid receptors. In the formalin test, naloxone significantly blocked the effect of tadalafil in the first phase and partially in the second phase which is an inflammatory pain-dependent aspect. l-NAME, methylene blue and glibenclamide partially blocked the effect of tadalafil in the first phase and enhanced its effect in the second phase which is related to nitric oxide role in the inflammatory process. As a conclusion, tadalafil possesses a potential analgesic effect via the involvement of opioid and nitric oxide pathways.
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Affiliation(s)
- Mohammed M Mehanna
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon; Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
| | - Souraya Domiati
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Hania Nakkash Chmaisse
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Ahmed El Mallah
- Department of Pharmacology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Rushton AB, Evans DW, Middlebrook N, Heneghan NR, Small C, Lord J, Patel JM, Falla D. Development of a screening tool to predict the risk of chronic pain and disability following musculoskeletal trauma: protocol for a prospective observational study in the United Kingdom. BMJ Open 2018; 8:e017876. [PMID: 29705750 PMCID: PMC5931282 DOI: 10.1136/bmjopen-2017-017876] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Pain is an expected and appropriate experience following traumatic musculoskeletal injury. By contrast, chronic pain and disability are unhelpful yet common sequelae of trauma-related injuries. Presently, the mechanisms that underlie the transition from acute to chronic disabling post-traumatic pain are not fully understood. Such knowledge would facilitate the development and implementation of precision rehabilitation approaches that match interventions to projected risk of recovery, with the aim of preventing poor long-term outcomes. The aim of this study is to identify a set of predictive factors to identify patients at risk of developing ongoing post-traumatic pain and disability following acute musculoskeletal trauma. To achieve this, we will use a unique and comprehensive combination of patient-reported outcome measures, psychophysical testing and biomarkers. METHODS AND ANALYSIS A prospective observational study will recruit two temporally staggered cohorts (n=250 each cohort; at least 10 cases per candidate predictor) of consecutive patients with acute musculoskeletal trauma aged ≥16 years, who are emergency admissions into a Major Trauma Centre in the United Kingdom, with an episode inception defined as the traumatic event. The first cohort will identify candidate predictors to develop a screening tool to predict development of chronic and disabling pain, and the second will allow evaluation of the predictive performance of the tool (validation). The outcome being predicted is an individual's absolute risk of poor outcome measured at a 6-month follow-up using the Chronic Pain Grade Scale (poor outcome ≥grade II). Candidate predictors encompass the four primary mechanisms of pain: nociceptive (eg, injury location), neuropathic (eg, painDETECT), inflammatory (biomarkers) and nociplastic (eg, quantitative sensory testing). Concurrently, patient-reported outcome measures will assess general health and psychosocial factors (eg, pain self-efficacy). Risk of poor outcome will be calculated using multiple variable regression analysis. ETHICS AND DISSEMINATION Approved by the NHS Research Ethics Committee (17/WA/0421).
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Affiliation(s)
- Alison B Rushton
- Centre of Precision Rehabilitation for SpinalPain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham, Birmingham, UK
| | - David W Evans
- Centre of Precision Rehabilitation for SpinalPain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham, Birmingham, UK
| | - Nicola Middlebrook
- Centre of Precision Rehabilitation for SpinalPain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham, Birmingham, UK
| | - Nicola R Heneghan
- Centre of Precision Rehabilitation for SpinalPain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Charlotte Small
- NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham, Birmingham, UK
| | - Janet Lord
- NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham, Birmingham, UK
| | - Jaimin M Patel
- NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham, Birmingham, UK
| | - Deborah Falla
- Centre of Precision Rehabilitation for SpinalPain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham, Birmingham, UK
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Individual Variation in Pain Sensitivity and Conditioned Pain Modulation in Acute Low Back Pain: Effect of Stimulus Type, Sleep, and Psychological and Lifestyle Factors. THE JOURNAL OF PAIN 2018; 19:942.e1-942.e18. [PMID: 29597080 DOI: 10.1016/j.jpain.2018.02.017] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/18/2018] [Accepted: 02/22/2018] [Indexed: 02/08/2023]
Abstract
Generalized hyperalgesia and impaired pain modulation are reported in chronic low back pain (LBP). Few studies have tested whether these features are present in the acute phase. This study aimed to test for differences in pain presentation in early-acute LBP and evaluate the potential contribution of other factors to variation in sensitivity. Individuals within 2 weeks of onset of acute LBP (n = 126) and pain-free controls (n = 74) completed questionnaires related to their pain, disability, behavior, and psychological status before undergoing conditioned pain modulation (CPM) and pain threshold (heat, cold, and pressure) testing at the back and forearm/thumb. LBP participants were more sensitive to heat and cold at both sites and pressure at the back than controls, without differences in CPM. Only those with high-pain (numeric rating scale ≥4) were more sensitive to heat at the forearm and pressure at the back. Four subgroups with distinct features were identified: "high sensitivity," "low CPM efficacy," "high sensitivity/low CPM efficacy," and "low sensitivity/high CPM efficacy." Various factors such as sleep and alcohol were associated with each pain measure. Results provide evidence for generalized hyperalgesia in many, but not all, individuals during acute LBP, with variation accounted for by several factors. Specific pain phenotypes provide candidate features to test in longitudinal studies of LBP outcome. PERSPECTIVE Sensory changes indicative of increased/decreased central processing of pain and nociceptive input presented differently between individuals with acute LBP and were related to factors such as sleep and alcohol. This may underlie variation in outcome and suggest potential for early identification of individuals with poor long-term outcome.
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Cook AD, Christensen AD, Tewari D, McMahon SB, Hamilton JA. Immune Cytokines and Their Receptors in Inflammatory Pain. Trends Immunol 2018; 39:240-255. [DOI: 10.1016/j.it.2017.12.003] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/28/2017] [Accepted: 12/13/2017] [Indexed: 01/23/2023]
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Sandoval R, Lazcano P, Ferrari F, Pinto-Pardo N, González-Billault C, Utreras E. TNF-α Increases Production of Reactive Oxygen Species through Cdk5 Activation in Nociceptive Neurons. Front Physiol 2018; 9:65. [PMID: 29467671 PMCID: PMC5808211 DOI: 10.3389/fphys.2018.00065] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/18/2018] [Indexed: 12/20/2022] Open
Abstract
The participation of reactive oxygen species (ROS) generated by NOX1 and NOX2/NADPH oxidase has been documented during inflammatory pain. However, the molecular mechanism involved in their activation is not fully understood. We reported earlier a key role of Cyclin-dependent kinase 5 (Cdk5) during inflammatory pain. In particular, we demonstrated that TNF-α increased p35 expression, a Cdk5 activator, causing Cdk5-mediated TRPV1 phosphorylation followed by an increment in Ca2+ influx in nociceptive neurons and increased pain sensation. Here we evaluated if Cdk5 activation mediated by p35 transfection in HEK293 cells or by TNF-α treatment in primary culture of nociceptive neurons could increase ROS production. By immunofluorescence we detected the expression of catalytic subunit (Nox1 and Nox2) and their cytosolic regulators (NOXO1 and p47phox) of NOX1 and NOX2/NADPH oxidase complexes, and their co-localization with Cdk5/p35 in HEK293 cells and in nociceptive neurons. By using a hydrogen peroxide sensor, we detected a significant increase of ROS production in p35 transfected HEK293 cells as compared with control cells. This effect was significantly blocked by VAS2870 (NADPH oxidase inhibitor) or by roscovitine (Cdk5 activity inhibitor). Also by using another ROS probe named DCFH-DA, we found a significant increase of ROS production in nociceptive neurons treated with TNF-α and this effect was also blocked by VAS2870 or by roscovitine treatment. Interestingly, TNF-α increased immunodetection of p35 protein and NOX1 and NOX2/NADPH oxidase complexes in primary culture of trigeminal ganglia neurons. Finally, the cytosolic regulator NOXO1 was significantly translocated to plasma membrane after TNF-α treatment and roscovitine blocked this effect. Altogether these results suggest that Cdk5 activation is implicated in the ROS production by NOX1 and NOX2/NADPH oxidase complexes during inflammatory pain.
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Affiliation(s)
- Rodrigo Sandoval
- Laboratory of Molecular and Cellular Mechanisms of Pain, Department of Biology, Faculty of Science, Universidad de Chile, Santiago, Chile
| | - Pablo Lazcano
- Laboratory of Molecular and Cellular Mechanisms of Pain, Department of Biology, Faculty of Science, Universidad de Chile, Santiago, Chile
| | - Franco Ferrari
- Laboratory of Molecular and Cellular Mechanisms of Pain, Department of Biology, Faculty of Science, Universidad de Chile, Santiago, Chile
| | - Nicolás Pinto-Pardo
- Laboratory of Molecular and Cellular Mechanisms of Pain, Department of Biology, Faculty of Science, Universidad de Chile, Santiago, Chile.,Doctorate in Biomedicine, Universidad de los Andes, Santiago, Chile
| | - Christian González-Billault
- Laboratory of Cellular and Neuronal Dynamics, Department of Biology, Faculty of Science, Universidad de Chile, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism (GERO), Santiago, Chile.,The Buck Institute for Research on Aging, Novato, CA, United States
| | - Elías Utreras
- Laboratory of Molecular and Cellular Mechanisms of Pain, Department of Biology, Faculty of Science, Universidad de Chile, Santiago, Chile
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Dinić M, Pecikoza U, Djokić J, Stepanović-Petrović R, Milenković M, Stevanović M, Filipović N, Begović J, Golić N, Lukić J. Exopolysaccharide Produced by Probiotic Strain Lactobacillus paraplantarum BGCG11 Reduces Inflammatory Hyperalgesia in Rats. Front Pharmacol 2018; 9:1. [PMID: 29387012 PMCID: PMC5776101 DOI: 10.3389/fphar.2018.00001] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/03/2018] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to test the potential of high molecular weight exopolysaccharide (EPS) produced by the putative probiotic strain Lactobacillus paraplantarum BGCG11 (EPS CG11) to alleviate inflammatory pain in Wistar rats. The EPS CG11 was isolated from bacterial surface and was subjected to Fourier-transform infrared spectroscopy (FTIR) and thermal analysis. FTIR spectra confirmed the polysaccharide structure of isolated sample, while the thermal methods revealed good thermal properties of the polymer. The antihyperalgesic and antiedematous effects of the EPS CG11 were examined in the rat model of inflammation induced by carrageenan injection in hind paw. The results showed that the intraperitoneal administration of EPS CG11 produced a significant decrease in pain sensations (mechanical hyperalgesia) and a paw swelling in a dose-dependent manner as it was measured using Von Frey anesthesiometer and plethysmometer, respectively. These effects were followed by a decreased expression of IL-1β and iNOS mRNAs in rat's paw tissue suggesting that the antihyperalgesic and antiedematous effects of the EPS CG11 are related to the suppression of inflammatory response. Additionally, we demonstrated that EPS CG11 exhibits immunosuppressive properties in the peritonitis model induced by carrageenan. Expression levels of pro-inflammatory mediators IL-1β, TNF-α and iNOS were decreased, together with the enhanced secretion of anti-inflammatory IL-10 and IL-6 cytokines, while neutrophil infiltration was not changed. To the best of our knowledge, this is the first study which reports an antihyperalgesic effect as the novel property of bacterial EPSs. Given the high demands of pharmaceutical industry for the replacement of commonly used analgesics due to numerous side effects, this study describes a promising natural compound for the future pharmacological testing in the area.
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Affiliation(s)
- Miroslav Dinić
- Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Uroš Pecikoza
- Department of Pharmacology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Jelena Djokić
- Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | | | - Marina Milenković
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Magdalena Stevanović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Nenad Filipović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Jelena Begović
- Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Nataša Golić
- Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Jovanka Lukić
- Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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Jang Y, Cho PS, Yang YD, Hwang SW. Nociceptive Roles of TRPM2 Ion Channel in Pathologic Pain. Mol Neurobiol 2018; 55:6589-6600. [PMID: 29327205 DOI: 10.1007/s12035-017-0862-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/21/2017] [Indexed: 12/18/2022]
Abstract
Pain is a protective mechanism that enables us to avoid potentially harmful environments. However, when pathologically persisted and aggravated under severely injured or inflamed conditions, pain often reduces the quality of life and thus is considered as a disease to eliminate. Inflammatory and/or neuropathic mechanisms may exaggerate interactions between damaged tissues and neural pathways for pain mediation. Similar mechanisms also promote the communication among cellular participants in synapses at spinal or higher levels, which may amplify nociceptive firing and subsequent signal transmission, deteriorating the pain sensation. In this pathology, important cellular players are afferent sensory neurons, peripheral immune cells, and spinal glial cells. Arising from damage of injury, overloaded interstitial and intracellular reactive oxygen species (ROS) and intracellular Ca2+ are key messengers in the development and maintenance of pathologic pain. Thus, an ROS-sensitive and Ca2+-permeable ion channel that is highly expressed in the participant cells might play a critical role in the pathogenesis. Transient receptor potential melastatin subtype 2 (TRPM2) is the unique molecule that satisfies all of the requirements: the sensitivity, permeability, and its expressing cells. Notable progress in delineating the role of TRPM2 in pain has been achieved during the past decade. In the present review, we summarize the important findings in the key cellular components that are involved in pathologic pain. This overview will help to understand TRPM2-mediated pain mechanisms and speculate therapeutic strategies by utilizing this updated information.
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Affiliation(s)
- Yongwoo Jang
- Department of Psychiatry and Program in Neuroscience, McLean Hospital, Harvard Medical School, Belmont, MA, 02478, USA
| | - Pyung Sun Cho
- Department of Biomedical Sciences and Department of Physiology, College of Medicine, Korea University, Seoul, 02841, South Korea
| | - Young Duk Yang
- Department of Pharmacy, College of Pharmacy, CHA University, Gyeonggi, 11160, South Korea.
| | - Sun Wook Hwang
- Department of Biomedical Sciences and Department of Physiology, College of Medicine, Korea University, Seoul, 02841, South Korea.
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Marcondes Sari MH, Zborowski VA, Ferreira LM, Jardim NS, Barbieri AV, Cruz L, Nogueira CW. p,p′-Methoxyl-diphenyl diselenide-loaded polymeric nanocapsules as a novel approach to inflammatory pain treatment: Behavioral, biochemistry and molecular evidence. Eur J Pharm Sci 2018; 111:38-45. [DOI: 10.1016/j.ejps.2017.09.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/16/2017] [Accepted: 09/20/2017] [Indexed: 01/12/2023]
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Boakye-Gyasi E, Henneh IT, Abotsi WKM, Ameyaw EO, Woode E. Possible mechanisms involved in the anti-nociceptive effects of hydro-ethanolic leaf extract of Ziziphus abyssinica. PHARMACEUTICAL BIOLOGY 2017; 55:1962-1971. [PMID: 28726567 PMCID: PMC7011919 DOI: 10.1080/13880209.2017.1355927] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/27/2017] [Accepted: 07/11/2017] [Indexed: 05/26/2023]
Abstract
CONTEXT Various parts of Ziziphus abyssinica Hochst ex. A. Rich (Rhamnaceae) have been used in Ghanaian and African traditional medicine as an analgesic. However, there are little scientific data to support the anti-nociceptive effects of the hydro-ethanolic leaf extract of Ziziphus abyssinica (EthE) as well as the possible mechanisms involved in its anti-nociceptive effects. PURPOSE To predict possible nociceptive pathways involved in the anti-nociceptive effects of EthE. MATERIALS AND METHODS The effect of EthE (30, 100 and 300 mg/kg) on intraplantar injection of pain mediators such as interleukin-1β, tumour necrosis factor-α, prostaglandin E2 and bradykinin was evaluated in male Sprague Dawley rats using Randall-Selitto test for 5 h. The effect of specific antagonists to the opioidergic, adenosinergic, ATP-sensitive K+ channels, nitric oxide, serotonergic, muscarinic, adrenergic and voltage-gated calcium channel on the anti-nociceptive effect of EthE (100 mg/kg) was evaluated using the formalin test in male imprinting control region (ICR) mice for 1 h. RESULTS Pretreatment of the rats with EthE significantly reversed the hypernociception induced by intraplantar injection of TNF-α (F4,120 = 10.86, p < 0.0001), IL-1β (F4,120 = 14.71, p < 0.0001), bradykinin (F4,80 = 12.52, p < 0.0001) and prostaglandin E2 (F5,144 = 6.165, p = 0.0001). The anti-nociceptive effect exhibited by EthE in the formalin test was reversed by systemic administration of NG-l-nitro-arginine methyl ester, naloxone, theophylline and glibenclamide. CONCLUSIONS EthE inhibits hypernociception induced by TNF-α, IL-1β, bradykinin and prostaglandin E2. EthE exhibited anti-nociceptive effects possibly mediated through opioidergic, adenosinergic, ATP-sensitive potassium channels and nitric oxide cyclic GMP pathways.
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Affiliation(s)
- Eric Boakye-Gyasi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Isaac Tabiri Henneh
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Wonder Kofi Mensah Abotsi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Chagas PM, da Cruz Weber Fulco B, Pesarico AP, Roehrs JA, Nogueira CW. Effectiveness of bis(phenylimidazoselenazolyl) diselenide on a mouse model of inflammatory nociception. Biomed Pharmacother 2017; 96:56-63. [PMID: 28963951 DOI: 10.1016/j.biopha.2017.09.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/11/2017] [Accepted: 09/23/2017] [Indexed: 11/16/2022] Open
Abstract
The injection of complete Freund's adjuvant (CFA) in the hindpaw of rodents induces tissue inflammation and nociceptive hypersensitivity. In addition, it has been reported that organoselenium compounds have antinociceptive properties in animal models. The purpose of this study was to investigate the potential antinociceptive effect of bis(phenylimidazoselenazolyl) diselenide (BPIS) in the inflammatory nociception model in mice and its possible mechanism of action. C57BL/6 mice received CFA intraplantar in right hindpaw and the inflammatory response was verified 24h after injection as well as the antinociceptive effect of BPIS. The CFA-induced mechanical allodynia was reversed by BPIS treatment (1mg/kg, p.o.) observed through the von Frey hair test. Additionally, L-arginine (600mg/kg; i.p.), administered before BPIS treatment, blocked its antinociceptive effect. Regarding myeloperoxidase activity, NOx and 3-nitrotyrosine levels, BPIS administration did not reverse alterations observed in the paw of animals injected with CFA. BPIS reversed the increase in spinal NOx content induced by CFA. In the spinal cord, it was also found that CFA induced an increase in malondialdehyde content and a decrease in glutamate uptake, and these alterations were reversed by BPIS. Moreover, BPIS treatment induced an increase in non-protein thiol levels in spinal cord of animals that received CFA injection. No alterations were found in glutathione peroxidase, reductase and S-transferase activities of experimental groups. The obtained data reinforce the relevance of BPIS as an antinociceptive agent as well as highlight the importance of the nitric oxide pathway in the spinal cord and its antioxidant potential for its mechanism of action.
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Affiliation(s)
- Pietro Maria Chagas
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
| | - Bruna da Cruz Weber Fulco
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
| | - Ana Paula Pesarico
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
| | - Juliano Alex Roehrs
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
| | - Cristina Wayne Nogueira
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil.
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Andreu V, Arruebo M. Current progress and challenges of nanoparticle-based therapeutics in pain management. J Control Release 2017; 269:189-213. [PMID: 29146243 DOI: 10.1016/j.jconrel.2017.11.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/10/2017] [Accepted: 11/11/2017] [Indexed: 02/07/2023]
Abstract
Pain is a widespread and growing health problem worldwide that exerts a considerable social and economic impact on both patients and healthcare systems and, therefore, on society in general. Although current treatment modalities include a wide variety of pharmacological and non-pharmacological approaches, due to the complexity of pain and individual differences in clinical response these options are not always effective in mitigating and relieving pain. In addition, some pain drugs such as non-steroidal anti-inflammatory drugs (NSAIDs), local anesthetics and opioids show several unfavorable side effects. Therefore, current research advances in this medical field are based on the development of potential treatments to address many of the unmet needs and to overcome the existing limitations in pain management. Nanoparticle drug delivery systems present an exciting opportunity as alternative platforms to improve efficacy and safety of medications currently in use. Herein, we review a broad range of nanoparticle formulations (organic nanostructures and inorganic nanoparticles), which have been developed to encapsulate an array of painkillers, paying special attention to the key advantages that these systems offer, (compared to the use of the free drug), as well as to the more relevant results of preclinical studies in animal models. Additionally, we will briefly discuss the impact of some of these nanoformulations in clinical trials.
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Affiliation(s)
- Vanesa Andreu
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS), Aragón, 50009 Zaragoza, Spain.
| | - Manuel Arruebo
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS), Aragón, 50009 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
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48
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Izurieta Munoz H, Gonzales EB, Sumien N. Effects of creatine supplementation on nociception in young male and female mice. Pharmacol Rep 2017; 70:316-321. [PMID: 29477040 DOI: 10.1016/j.pharep.2017.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 11/01/2017] [Accepted: 11/10/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND The objective of this study was to evaluate creatine as an anti-nociceptive compound in an animal model of thermal and inflammatory pain. Creatine has the structural potential to interact with acid-sensing ion channels (ASIC), which have been involved in pain sensation modulation. The hypothesis evaluated in this study was that creatine will interact with ASICs leading to decreased nociception. METHODS Male and female C57BL/6J mice were fed with either a control diet or the control diet supplemented with creatine (6.25 g/kg diet). After one week on the diet, the mice were tested for thermal hyperalgesia and inflammatory pain response. RESULTS The latency to withdraw the tail during the thermal hyperalgesia test was unaffected by sex or diet. During the formalin test, males and females responded differently to the stimulus, and the female mice supplemented with creatine seemed to recover faster than the controls. To determine whether ASICs mediate the action of creatine, GMQ, an ASIC3 agonist, was injected in one paw and pain response was quantified. Females responded more strongly to GMQ injections, and all mice fed creatine had a decreased response to GMQ. CONCLUSIONS These preliminary data suggest a potential effect of creatine on inflammation-based nociception that may be mediated via ASIC3. While preliminary, this study warrants further research on the potential of creatine as an analgesic and can serve as a stepping stone for the development of ASIC-based therapeutics.
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Affiliation(s)
- Haydee Izurieta Munoz
- Department of Pharmacology and Neuroscience, UNT Health Science Center, Fort Worth, USA
| | - Eric B Gonzales
- Department of Medical Education, Texas Christian University and UNT Health Science Center School of Medicine (Applicant for LCME accreditation), Fort Worth, USA
| | - Nathalie Sumien
- Department of Pharmacology and Neuroscience, UNT Health Science Center, Fort Worth, USA.
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De Pedro-Muñoz A, Mena-Álvarez J. The effect of preoperative submucosal administration of tramadol on the success rate of inferior alveolar nerve block on mandibular molars with symptomatic irreversible pulpitis: a randomized, double-blind placebo-controlled clinical trial. Int Endod J 2017; 50:1134-1142. [DOI: 10.1111/iej.12755] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 02/15/2017] [Indexed: 11/29/2022]
Affiliation(s)
- A. De Pedro-Muñoz
- Private Practice in Endodontics; Alfonso X el Sabio University; Madrid Spain
| | - J. Mena-Álvarez
- Department of Endodontics; Faculty of Health Sciences; Alfonso X el Sabio University; Madrid Spain
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El-Ghazaly M, Fadel N, Rashed E, El-Batal A, Kenawy S. Anti-inflammatory effect of selenium nanoparticles on the inflammation induced in irradiated rats. Can J Physiol Pharmacol 2017; 95:101-110. [DOI: 10.1139/cjpp-2016-0183] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Selenium (Se) has been reported to possess anti-inflammatory properties, but its bioavailability and toxicity are considerable limiting factors. The present study aimed to investigate the possible anti-inflammatory and analgesic effects of selenium nanoparticles (Nano-Se) on inflammation induced in irradiated rats. Paw volume and nociceptive threshold were measured in carrageenan-induced paw edema and hyperalgesia model. Leukocytic count, tumor necrosis factor-α (TNF-α), prostaglandin E2 (PGE2), thiobarbituric acid reactive substances (TBAR), and total nitrate/nitrite (NOx) were estimated in the exudate collected from 6 day old air pouch model. Irradiated rats were exposed to 6 Gy gamma (γ)-irradiation. Nano-Se were administered orally in a dose of 2.55 mg/kg once before carrageenan injection in the first model and twice in the second model. The paw volume but not the nociceptive response produced by carrageenan in irradiated rats was higher than that induced in non-irradiated rats. Nano-Se were effective in reducing the paw volume in non-irradiated and irradiated rats but it did not alter the nociceptive threshold. The inflammation induced in irradiated rats increased all the estimated parameters in the exudate whereas; Nano-Se decreased their elevation in non-irradiated and irradiated rats. Nano-Se possess a potential anti-inflammatory activity on inflammation induced in irradiated rats.
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Affiliation(s)
- M.A. El-Ghazaly
- Drug Radiation Research Department, National Centre for Radiation Research & Technology, Atomic Energy Authority, Ahmed El-Zomor Street, Nasr City, Cairo, Egypt
| | - N. Fadel
- Drug Radiation Research Department, National Centre for Radiation Research & Technology, Atomic Energy Authority, Ahmed El-Zomor Street, Nasr City, Cairo, Egypt
| | - E. Rashed
- Drug Radiation Research Department, National Centre for Radiation Research & Technology, Atomic Energy Authority, Ahmed El-Zomor Street, Nasr City, Cairo, Egypt
| | - A. El-Batal
- Drug Radiation Research Department, National Centre for Radiation Research & Technology, Atomic Energy Authority, Ahmed El-Zomor Street, Nasr City, Cairo, Egypt
| | - S.A. Kenawy
- Pharmacology Department, Faculty of Pharmacy, Cairo University, Egypt
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