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Zhang K, Liu W, Shen F, Luan G, Han Y, Xu J, Fu C, Wu W, Hou Y, Jiang M, Zhang T, Bai G. Ligustilide covalently binds to Cys703 in the pre-S1 helix of TRPA1, blocking the opening of channel and relieving pain in rats with acute soft tissue injury. JOURNAL OF ETHNOPHARMACOLOGY 2024; 330:118217. [PMID: 38641072 DOI: 10.1016/j.jep.2024.118217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/04/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The natural anodyne Ligustilide (Lig), derived from Angelica sinensis (Oliv.) Diels and Ligusticum chuanxiong Hort., has been traditionally employed for its analgesic properties in the treatment of dysmenorrhea and migraine, and rheumatoid arthritis pain. Despite the existing reports on the correlation between TRP channels and the analgesic effects of Lig, a comprehensive understanding of their underlying mechanisms of action remains elusive. AIM OF THE STUDY The objective of this study is to elucidate the mechanism of action of Lig on the analgesic target TRPA1 channel. METHODS The therapeutic effect of Lig was evaluated in a rat acute soft tissue injury model. The analgesic target was identified through competitive inhibition of TRP channel agonists at the animal level, followed by Fluo-4/Ca2+ imaging on live cells overexpressing TRP proteins. The potential target was verified through in-gel imaging, colocalization using a Lig-derived molecular probe, and a drug affinity response target stability assay. The binding site of Lig was identified through protein spectrometry and further analyzed using molecular docking, site-specific mutation, and multidisciplinary approaches. RESULTS The administration of Lig effectively ameliorated pain and attenuated oxidative stress and inflammatory responses in rats with soft tissue injuries. Moreover, the analgesic effects of Lig were specifically attributed to TRPA1. Mechanistic studies have revealed that Lig directly activates TRPA1 by interacting with the linker domain in the pre-S1 region of TRPA1. Through metabolic transformation, 6,7-epoxyligustilide (EM-Lig) forms a covalent bond with Cys703 of TRPA1 at high concentrations and prolonged exposure time. This irreversible binding prevents endogenous electrophilic products from entering the cysteine active center of ligand-binding pocket of TRPA1, thereby inhibiting Ca2+ influx through the channel opening and ultimately relieving pain. CONCLUSIONS Lig selectively modulates the TRPA1 channel in a bimodal manner via non-electrophilic/electrophilic metabolic conversion. The epoxidized metabolic intermediate EM-Lig exerts analgesic effects by irreversibly inhibiting the activation of TRPA1 on sensory neurons. These findings not only highlight the analgesic mechanism of Lig but also offer a novel nucleophilic attack site for the development of TRPA1 antagonists in the pre-S1 region.
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Affiliation(s)
- Kaixue Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China
| | - Wenjuan Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China
| | - Fukui Shen
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China
| | - Guoqing Luan
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China
| | - Yanqi Han
- State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Key Laboratory of Quality Markers of Traditional Chinese Medicine, Tianjin Institute of Pharmaceutical Research, Tianjin, 300462, PR China
| | - Jun Xu
- State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Key Laboratory of Quality Markers of Traditional Chinese Medicine, Tianjin Institute of Pharmaceutical Research, Tianjin, 300462, PR China
| | - Cheng Fu
- Jiangxi Baishen Changnuo Pharmaceutical Co., Ltd., Fuzhou, 344000, PR China
| | - Weidong Wu
- Jiangxi Baishen Changnuo Pharmaceutical Co., Ltd., Fuzhou, 344000, PR China
| | - Yuanyuan Hou
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China
| | - Min Jiang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China.
| | - Tiejun Zhang
- State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Key Laboratory of Quality Markers of Traditional Chinese Medicine, Tianjin Institute of Pharmaceutical Research, Tianjin, 300462, PR China.
| | - Gang Bai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China.
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Gao N, Li M, Wang W, Liu Z, Guo Y. Visual analysis of global research on the transient receptor potential ankyrin 1 channel: A literature review from 2002 to 2022. Heliyon 2024; 10:e31001. [PMID: 38770319 PMCID: PMC11103542 DOI: 10.1016/j.heliyon.2024.e31001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 05/22/2024] Open
Abstract
Background and aims The transient receptor potential ankyrin 1 (TRPA1) channel has become a focus in pain research. However, there are no bibliometric studies that systematically analyze the existing research in this area. This study aimed to provide a systematic review of the existing literature on TRPA1 using a bibliometric analysis. Methods Published literature in the field of TRPA1 was collected from the Web of Science Core Collection database. Quantitative and qualitative analyses of publications, countries, institutions, authors, journals, and other entries were conducted using Excel, VOSview, and Citespace software to provide insight into global research hotspots and trends in the TRPA1 field. Results This study included 1189 scientific products published in 398 journals from 52 countries. The United States of America (n = 367) had the most publications, ahead of Japan (n = 212) and China (n = 199). The University of Florence (n = 55) was the most productive institution and Pierangelo Geppetti (n = 46) was the most productive author. PLoS One (n = 40) published the most articles on TRPA1. Pain, cold, inflammation, covalent modification, hyperalgesia, and oxidative stress were the most common keywords used in the studies. Conclusion This study provides the first bibliometric analysis of TRPA1 publications. The physiological functions of TRPA1, TRPA1, and neuropathic pain, TRPA1 as a therapeutic target, and agonists of TRPA1 are trending in TRPA1 research. Neuropathic pain, apoptosis, and sensitization could be focus areas of future research. This study provides important insight in the field of TRPA1 research.
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Affiliation(s)
- Ning Gao
- Department of Acupuncture and Moxibustion, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Meng Li
- Department of Gastroenterology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Weiming Wang
- Department of Acupuncture and Moxibustion, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Zhen Liu
- Department of Gastroenterology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Yufeng Guo
- Department of Acupuncture and Moxibustion, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
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Huang J, Korsunsky A, Yazdani M, Chen J. Targeting TRP channels: recent advances in structure, ligand binding, and molecular mechanisms. Front Mol Neurosci 2024; 16:1334370. [PMID: 38273937 PMCID: PMC10808746 DOI: 10.3389/fnmol.2023.1334370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Transient receptor potential (TRP) channels are a large and diverse family of transmembrane ion channels that are widely expressed, have important physiological roles, and are associated with many human diseases. These proteins are actively pursued as promising drug targets, benefitting greatly from advances in structural and mechanistic studies of TRP channels. At the same time, the complex, polymodal activation and regulation of TRP channels have presented formidable challenges. In this short review, we summarize recent progresses toward understanding the structural basis of TRP channel function, as well as potential ligand binding sites that could be targeted for therapeutics. A particular focus is on the current understanding of the molecular mechanisms of TRP channel activation and regulation, where many fundamental questions remain unanswered. We believe that a deeper understanding of the functional mechanisms of TRP channels will be critical and likely transformative toward developing successful therapeutic strategies targeting these exciting proteins. This endeavor will require concerted efforts from computation, structural biology, medicinal chemistry, electrophysiology, pharmacology, drug safety and clinical studies.
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Affiliation(s)
- Jian Huang
- Department of Chemistry, University of Massachusetts, Amherst, MA, United States
| | - Aron Korsunsky
- Department of Chemistry, University of Massachusetts, Amherst, MA, United States
| | - Mahdieh Yazdani
- Modeling and Informatics, Merck & Co., Inc., West Point, PA, United States
| | - Jianhan Chen
- Department of Chemistry, University of Massachusetts, Amherst, MA, United States
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Vlachova V, Barvik I, Zimova L. Human Transient Receptor Potential Ankyrin 1 Channel: Structure, Function, and Physiology. Subcell Biochem 2024; 104:207-244. [PMID: 38963489 DOI: 10.1007/978-3-031-58843-3_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
The transient receptor potential ion channel TRPA1 is a Ca2+-permeable nonselective cation channel widely expressed in sensory neurons, but also in many nonneuronal tissues typically possessing barrier functions, such as the skin, joint synoviocytes, cornea, and the respiratory and intestinal tracts. Here, the primary role of TRPA1 is to detect potential danger stimuli that may threaten the tissue homeostasis and the health of the organism. The ability to directly recognize signals of different modalities, including chemical irritants, extreme temperatures, or osmotic changes resides in the characteristic properties of the ion channel protein complex. Recent advances in cryo-electron microscopy have provided an important framework for understanding the molecular basis of TRPA1 function and have suggested novel directions in the search for its pharmacological regulation. This chapter summarizes the current knowledge of human TRPA1 from a structural and functional perspective and discusses the complex allosteric mechanisms of activation and modulation that play important roles under physiological or pathophysiological conditions. In this context, major challenges for future research on TRPA1 are outlined.
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Affiliation(s)
- Viktorie Vlachova
- Department of Cellular Neurophysiology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Ivan Barvik
- Division of Biomolecular Physics, Institute of Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic.
| | - Lucie Zimova
- Department of Cellular Neurophysiology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
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Sampieri A, Padilla-Flores T, Thawani AR, Lam PY, Fuchter MJ, Peterson R, Vaca L. The conducting state of TRPA1 modulates channel lateral mobility. Cell Calcium 2023; 116:102800. [PMID: 37776645 DOI: 10.1016/j.ceca.2023.102800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/04/2023] [Accepted: 09/16/2023] [Indexed: 10/02/2023]
Abstract
We have studied Danio rerio (Zebrafish) TRPA1 channel using a method that combines single channel electrophysiological and optical recordings to evaluate lateral mobility and channel gating simultaneously in single channels. TRPA1 channel activation by two distinct chemical ligands: allyl isothiocyanate (AITC) and TRPswitch B, results in substantial reduction of channel lateral mobility at the plasma membrane. Incubation with the cholesterol sequestering agent methyl-β-cyclodextrin (MβCD), prevents the reduction on lateral mobility induced by the two chemical agonists. This results strongly suggest that the open conformation of TRPA1 modulates channel lateral mobility probably by facilitating the insertion of the channel into cholesterol-enriched domains at the plasma membrane.
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Affiliation(s)
- Alicia Sampieri
- Instituto de Fisiología Celular. Departamento de Biología Celular y del desarrollo. Universidad Nacional Autónoma de México. México, CDMX 04510, Mexico
| | - Teresa Padilla-Flores
- Instituto de Fisiología Celular. Departamento de Biología Celular y del desarrollo. Universidad Nacional Autónoma de México. México, CDMX 04510, Mexico
| | - Aditya R Thawani
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London W12 OBZ, United Kingdom
| | - Pui-Ying Lam
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, 8701 West Watertown Plank Rd., Milwaukee, Wisconsin 53226, USA; Neuroscience Research Center, Medical College of Wisconsin, 8701 West Watertown Plank Rd., Milwaukee, Wisconsin, 53226, USA
| | - Matthew J Fuchter
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London W12 OBZ, United Kingdom
| | - Randall Peterson
- College of Pharmacy, University of Utah, 30 South 2000 East, Salt Lake City, Utah, 84112, USA
| | - Luis Vaca
- Instituto de Fisiología Celular. Departamento de Biología Celular y del desarrollo. Universidad Nacional Autónoma de México. México, CDMX 04510, Mexico.
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Zhang Q, Weng W, Gu X, Xiang J, Yang Y, Zhu MX, Gu W, He Z, Li Y. hnRNPA1 SUMOylation promotes cold hypersensitivity in chronic inflammatory pain by stabilizing TRPA1 mRNA. Cell Rep 2023; 42:113401. [PMID: 37943660 DOI: 10.1016/j.celrep.2023.113401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/17/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023] Open
Abstract
TRPA1 is pivotal in cold hypersensitivity, but its regulatory mechanisms in inflammatory cold hyperalgesia remain poorly understood. We show here that the upregulation of SUMO1-conjugated protein levels in a complete Freund's adjuvant (CFA)-induced inflammatory pain model enhances TRPA1 mRNA stability, ultimately leading to increased expression levels. We further demonstrate that hnRNPA1 binds to TRPA1 mRNA, and its SUMOylation, upregulated in CFA-induced inflammatory pain, contributes to stabilizing TRPA1 mRNA by accumulating hnRNPA1 in the cytoplasm. Moreover, we find that wild-type hnRNPA1 viral infection in dorsal root ganglia neurons, and not infection with the SUMOylation-deficient hnRNPA1 mutant, can rescue the reduced ability of hnRNPA1-knockdown mice to develop inflammatory cold pain hypersensitivity. These results suggest that hnRNPA1 is a regulator of TRPA1 mRNA stability, the capability of which is enhanced upon SUMO1 conjugation at lysine 3 in response to peripheral inflammation, and the increased expression of TRPA1 in turn underlies the development of chronic inflammatory cold pain hypersensitivity.
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Affiliation(s)
- Qiao Zhang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Weiji Weng
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiaokun Gu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jinhua Xiang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yang Yang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Michael X Zhu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Weidong Gu
- Department of Anesthesiology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China.
| | - Zhenzhou He
- Department of Anesthesiology, Minhang Hospital Affiliated to Fudan University, Shanghai 201199, China.
| | - Yong Li
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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Effah F, Elzein A, Taiwo B, Baines D, Bailey A, Marczylo T. In Vitro high-throughput toxicological assessment of E-cigarette flavors on human bronchial epithelial cells and the potential involvement of TRPA1 in cinnamon flavor-induced toxicity. Toxicology 2023; 496:153617. [PMID: 37595738 DOI: 10.1016/j.tox.2023.153617] [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: 04/27/2023] [Revised: 08/06/2023] [Accepted: 08/15/2023] [Indexed: 08/20/2023]
Abstract
Electronic cigarettes (ECs) are considered a less hazardous alternative to tobacco smoking but are not harmless. Growing concerns about the safety profiles of flavors in e-liquids underpin the need for this study. Here, we screened 53 nicotine-free flavored e-liquids (across 15 flavor categories) across a 3-point concentration range (0.25%, 0.5%, and 1% v/v) in a high-throughput fashion in human bronchial epithelial (HBEC-3KT) submerged cell cultures to identify 'toxic hits' using in vitro endpoint assays comprising cell count, cell viability, and lactate dehydrogenase (LDH). We observed significant, dose-dependent adverse effects only with cinnamon, vanilla tobacco, and hazelnut e-liquids compared to media-only and PG/VG vehicle controls. Hence, we further analyzed these three flavors for their effects on HBEC-3KT proliferation, mitochondrial health, and oxidative stress. A significant decrease in cell proliferation after 36 h was observed for each e-liquid toxic hit compared to media-only and PG/VG controls. Hazelnut (at all concentrations) and vanilla tobacco (1%) increased cytoplasmic reactive oxygen species generation compared to media-only and PG/VG controls. Conversely, all three flavors at 0.5% and 1% significantly decreased mitochondrial membrane potential compared to PG/VG and media-only controls. Chemical analysis revealed that all three flavors contained volatile organic compounds. We hypothesized that the cytotoxicity of cinnamon might be mediated via TRPA1; however, TRPA1 antagonist AP-18 (10 μM) did not mitigate these effects, and cinnamon significantly increased TRPA1 transcript levels. Therefore, pathways mediating cinnamon's cytotoxicity warrant further investigations. This study could inform public health authorities on the relative health risks assessment following exposure to EC flavor ingredients.
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Affiliation(s)
- Felix Effah
- Pharmacology Section, St George's University of London, Cranmer Terrace, SW17 0RE London, UK; UK Health Security Agency, Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxfordshire OX11 ORQ, UK.
| | - Atallah Elzein
- UK Health Security Agency, Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxfordshire OX11 ORQ, UK
| | - Benjamin Taiwo
- Physiology Section, St George's University of London, Cranmer Terrace, SW17 0RE London, UK
| | - Deborah Baines
- Infection and Immunity Institute, St George's University of London, Cranmer Terrace, SW17 0RE London, UK
| | - Alexis Bailey
- Pharmacology Section, St George's University of London, Cranmer Terrace, SW17 0RE London, UK
| | - Tim Marczylo
- UK Health Security Agency, Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxfordshire OX11 ORQ, UK.
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Stover JD, Trone MA, Lawrence B, Bowles RD. Multiplex epigenome editing of ion channel expression in nociceptive neurons abolished degenerative IVD-conditioned media-induced mechanical sensitivity. JOR Spine 2023; 6:e1253. [PMID: 37361323 PMCID: PMC10285767 DOI: 10.1002/jsp2.1253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 01/15/2023] [Accepted: 02/27/2023] [Indexed: 06/28/2023] Open
Abstract
Background Low back pain is a major contributor to disability worldwide and generates a tremendous socioeconomic impact. The degenerative intervertebral disc (IVD) has been hypothesized to contribute to discogenic pain by sensitizing nociceptive neurons innervating the disc to stimuli that is nonpainful in healthy patients. Previously, we demonstrated the ability of degenerative IVDs to sensitize neurons to mechanical stimuli; however, elucidation of degenerative IVDs discogenic pain mechanisms is required to develop therapeutic strategies that directly target these mechanisms. Aims In this study, we utilized CRISPR epigenome editing of nociceptive neurons to identify mechanisms of degenerative IVD-induced changes to mechanical nociception and demonstrated the ability of multiplex CRISPR epigenome editing of nociceptive neurons to modulate inflammation-induced mechanical nociception. Methods and Results Utilizing an in vitro model, we demonstrated degenerative IVD-produced IL-6-induced increases in nociceptive neuron activity in response to mechanical stimuli, mediated by TRPA1, ASIC3, and Piezo2 ion channel activity. Once these ion channels were identified as mediators of degenerative IVD-induced mechanical nociception, we developed singleplex and multiplex CRISPR epigenome editing vectors that modulate endogenous expression of TRPA1, ASIC3, and Piezo2 via targeted gene promoter histone methylation. When delivered to nociceptive neurons, the multiplex CRISPR epigenome editing vectors abolished degenerative IVD-induced mechanical nociception while preserving nonpathologic neuron activity. Conclusion This work demonstrates the potential of multiplex CRISPR epigenome editing as a highly targeted gene-based neuromodulation strategy for the treatment of discogenic pain, specifically; and, for the treatment of inflammatory chronic pain conditions, more broadly.
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Affiliation(s)
- Joshua D. Stover
- Department of BioengineeringUniversity of UtahSalt Lake CityUtahUSA
| | - Matthew A. Trone
- Department of BioengineeringUniversity of UtahSalt Lake CityUtahUSA
| | - Brandon Lawrence
- Department of OrthopaedicsUniversity of UtahSalt Lake CityUtahUSA
| | - Robby D. Bowles
- Department of BioengineeringUniversity of UtahSalt Lake CityUtahUSA
- Department of OrthopaedicsUniversity of UtahSalt Lake CityUtahUSA
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Bar O, Ebenau L, Weiner K, Mintz M, Boles RG. Whole exome/genome sequencing in cyclic vomiting syndrome reveals multiple candidate genes, suggesting a model of elevated intracellular cations and mitochondrial dysfunction. Front Neurol 2023; 14:1151835. [PMID: 37234784 PMCID: PMC10208274 DOI: 10.3389/fneur.2023.1151835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/03/2023] [Indexed: 05/28/2023] Open
Abstract
Objective To utilize whole exome or genome sequencing and the scientific literature for identifying candidate genes for cyclic vomiting syndrome (CVS), an idiopathic migraine variant with paroxysmal nausea and vomiting. Methods A retrospective chart review of 80 unrelated participants, ascertained by a quaternary care CVS specialist, was conducted. Genes associated with paroxysmal symptoms were identified querying the literature for genes associated with dominant cases of intermittent vomiting or both discomfort and disability; among which the raw genetic sequence was reviewed. "Qualifying" variants were defined as coding, rare, and conserved. Additionally, "Key Qualifying" variants were Pathogenic/Likely Pathogenic, or "Clinical" based upon the presence of a corresponding diagnosis. Candidate association to CVS was based on a point system. Results Thirty-five paroxysmal genes were identified per the literature review. Among these, 12 genes were scored as "Highly likely" (SCN4A, CACNA1A, CACNA1S, RYR2, TRAP1, MEFV) or "Likely" (SCN9A, TNFRSF1A, POLG, SCN10A, POGZ, TRPA1) CVS related. Nine additional genes (OTC, ATP1A3, ATP1A2, GFAP, SLC2A1, TUBB3, PPM1D, CHAMP1, HMBS) had sufficient evidence in the literature but not from our study participants. Candidate status for mitochondrial DNA was confirmed by the literature and our study data. Among the above-listed 22 CVS candidate genes, a Key Qualifying variant was identified in 31/80 (34%), and any Qualifying variant was present in 61/80 (76%) of participants. These findings were highly statistically significant (p < 0.0001, p = 0.004, respectively) compared to an alternative hypothesis/control group regarding brain neurotransmitter receptor genes. Additional, post-analyses, less-intensive review of all genes (exome) outside our paroxysmal genes identified 13 additional genes as "Possibly" CVS related. Conclusion All 22 CVS candidate genes are associated with either cation transport or energy metabolism (14 directly, 8 indirectly). Our findings suggest a cellular model in which aberrant ion gradients lead to mitochondrial dysfunction, or vice versa, in a pathogenic vicious cycle of cellular hyperexcitability. Among the non-paroxysmal genes identified, 5 are known causes of peripheral neuropathy. Our model is consistent with multiple current hypotheses of CVS.
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Affiliation(s)
- Omri Bar
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Laurie Ebenau
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Kellee Weiner
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Mark Mintz
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Richard G. Boles
- NeurAbilities Healthcare, Voorhees, NJ, United States
- NeuroNeeds, Old Lyme, CT, United States
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Minowa E, Hayashi Y, Goh K, Ishida N, Kurashige Y, Nezu A, Saitoh M, Tanimura A. Enhancement of receptor-mediated calcium responses by phenytoin through the suppression of calcium excretion in human gingival fibroblasts. J Periodontal Res 2023; 58:274-282. [PMID: 36597969 DOI: 10.1111/jre.13089] [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: 03/18/2022] [Revised: 11/19/2022] [Accepted: 12/13/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND AND OBJECTIVES Gingival overgrowth caused by phenytoin is proposed to be associated with Ca2+ signaling; however, the mechanisms that increase the intracellular Ca2+ concentration ([Ca2+ ]i ) are controversial. The current study aimed to elucidate the mechanism underlying the phenytoin-induced increase in [Ca2+ ]i in human gingival fibroblasts (HGFs). METHODS Effects of 100 μM phenytoin on [Ca2+ ]i in HGFs were examined at the single-cell level using fluorescence images of fura-2 captured by an imaging system consisting of an EM-CCD camera coupled to an inverted fluorescence microscope at room temperature. RESULTS Exposure of HGFs to 100 μM phenytoin induced a transient increase in [Ca2+ ]i in the absence of extracellular Ca2+ , indicating that the phenytoin-induced increase in [Ca2+ ]i does not require an influx of extracellular Ca2+ . In addition, phenytoin increased [Ca2+ ]i in HGFs depleted of intracellular Ca2+ stores by thapsigargin, indicating that neither Ca2+ release from stores nor inhibition of Ca2+ uptake is involved. Furthermore, the phenytoin-induced [Ca2+ ]i elevation was reduced to 18.8% in the absence of extracellular Na+ , and [Ca2+ ]i elevation upon removal of extracellular Na+ was reduced to 25.9% in the presence of phenytoin. These results imply that phenytoin increases [Ca2+ ]i of HGFs by suppressing the Na+ /Ca2+ exchanger. Suppression of intracellular Ca2+ excretion is thought to enhance the Ca2+ responses induced by various stimuli. Analysis at the single-cell level showed that stimulation with 1 μM ATP or 3 μM histamine increased [Ca2+ ]i in 20-50% of cells, and [Ca2+ ]i increased in many unresponsive cells in the presence of phenytoin. CONCLUSION Our findings demonstrate that phenytoin induced increase in [Ca2+ ]i by the inhibition of Ca2+ efflux in HGFs. It was also found that phenytoin strongly enhanced small Ca2+ responses induced by stimulation with a low concentration of ATP or histamine by inhibiting Ca2+ efflux. These findings suggest a possibility that phenytoin causes drug-induced gingival overgrowth by interacting with inflammatory bioactive substances in the gingiva.
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Affiliation(s)
- Erika Minowa
- Division of Pediatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
| | - Yoshinobu Hayashi
- Division of Pediatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
| | - Kenji Goh
- Division of Dental Anesthesiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
| | - Narumi Ishida
- Division of Pharmacology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
| | - Yoshihito Kurashige
- Division of Pediatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
| | - Akihiro Nezu
- Division of Pharmacology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
| | - Masato Saitoh
- Division of Pediatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
| | - Akihiko Tanimura
- Division of Pharmacology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-tobetu, Japan
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11
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Tretola M, Bee G, Dohme-Meier F, Silacci P. Review: Harmonised in vitro digestion and the Ussing chamber for investigating the effects of polyphenols on intestinal physiology in monogastrics and ruminants. Animal 2023; 17:100785. [PMID: 37060748 DOI: 10.1016/j.animal.2023.100785] [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: 11/25/2022] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 04/17/2023] Open
Abstract
Because of the relevant effects of plant-derived polyphenols (PPs) on monogastrics and ruminants' nutrition, emissions and performance, an increasing number of in vivo and in vitro studies are being performed to better understand the mechanisms of action of polyphenols at both the ruminal and intestinal levels. The biological properties of these phenolic compounds strongly depend on their degradation, absorption and metabolism. The harmonised in vitro digestion method (INFOGEST) is one of the most reliable in vitro methods used to assess the bioaccessibility and or antioxidant activity of PP contained in different matrixes, as well as the interactions of PP and their degradation products with other feed ingredients. The effects of PP released from their matrix after in vitro digestion on different intestinal physiological parameters, such as epithelium integrity, can be further evaluated by the use of ex vivo models such as the Ussing chamber. This review aims to describe the combination of the INFOGEST method, coupled with the Ussing chamber as a valuable model for the digestion and subsequent effects and absorption of phenolic compounds in monogastrics and potentially in ruminants. The advances, challenges and limits of this approach are also discussed.
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Affiliation(s)
- M Tretola
- Agroscope, Animal Biology Group, La Tioleyre 4, 1725 Posieux, Switzerland; Agroscope, Swine Group, La Tioleyre 4, 1725 Posieux, Switzerland; Agroscope, Ruminant Research Group, La Tioleyre 4, 1725 Posieux, Switzerland; Department of Veterinary Medicine and Animal Sciences (DIVAS), University of Milan, 26900 Lodi, Italy.
| | - G Bee
- Agroscope, Swine Group, La Tioleyre 4, 1725 Posieux, Switzerland
| | - F Dohme-Meier
- Agroscope, Ruminant Research Group, La Tioleyre 4, 1725 Posieux, Switzerland
| | - P Silacci
- Agroscope, Animal Biology Group, La Tioleyre 4, 1725 Posieux, Switzerland
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12
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TRPA1 as Target in Myocardial Infarction. Int J Mol Sci 2023; 24:ijms24032516. [PMID: 36768836 PMCID: PMC9917254 DOI: 10.3390/ijms24032516] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/13/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Transient receptor potential cation channel subfamily A member 1 (TRPA1), an ion channel primarily expressed on sensory neurons, can be activated by substances occurring during myocardial infarction. Aims were to investigate whether activation, inhibition, or absence of TRPA1 affects infarcts and to explore underlying mechanisms. In the context of myocardial infarction, rats received a TRPA1 agonist, an antagonist, or vehicle at different time points, and infarct size was assessed. Wild type and TRPA1 knockout mice were also compared in this regard. In vitro, sensory neurons were co-cultured with cardiomyocytes and subjected to a model of ischemia-reperfusion. Although there was a difference between TRPA1 activation or inhibition in vivo, no experimental group was different to control animals in infarct size, which also applies to animals lacking TRPA1. In vitro, survival probability of cardiomyocytes challenged by ischemia-reperfusion increased from 32.8% in absence to 45.1% in presence of sensory neurons, which depends, at least partly, on TRPA1. This study raises doubts about whether TRPA1 is a promising target to reduce myocardial damage within a 24 h period. The results are incompatible with relevant enlargements of infarcts by TRPA1 activation or inhibition, which argues against adverse effects when TRPA1 is targeted for other indications.
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13
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Mesch S, Walter D, Laux-Biehlmann A, Basting D, Flanagan S, Miyatake Ondozabal H, Bäurle S, Pearson C, Jenkins J, Elves P, Hess S, Coelho AM, Rotgeri A, Bothe U, Nawaz S, Zollner TM, Steinmeyer A. Discovery of BAY-390, a Selective CNS Penetrant Chemical Probe as Transient Receptor Potential Ankyrin 1 (TRPA1) Antagonist. J Med Chem 2023; 66:1583-1600. [PMID: 36622903 PMCID: PMC9884088 DOI: 10.1021/acs.jmedchem.2c01830] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Indexed: 01/10/2023]
Abstract
Transient receptor potential ankyrin 1 (TRPA1) is a voltage-dependent, ligand-gated ion channel, and activation thereof is linked to a variety of painful conditions. Preclinical studies have demonstrated the role of TRPA1 receptors in a broad range of animal models of acute, inflammatory, and neuropathic pain. In addition, a clinical study using the TRPA1 antagonist GRC-17536 (Glenmark Pharmaceuticals) demonstrated efficacy in a subgroup of patients with painful diabetic neuropathy. Consequently, there is an increasing interest in TRPA1 inhibitors as potential analgesics. Herein, we report the identification of a fragment-like hit from a high-throughput screening (HTS) campaign and subsequent optimization to provide a novel and brain-penetrant TRPA1 inhibitor (compound 18, BAY-390), which is now being made available to the research community as an open-source in vivo probe.
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Affiliation(s)
- Stefanie Mesch
- Pharmaceutical
R&D, Drug Discovery, Medicinal Chemistry, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany
| | - Daryl Walter
- Discovery
Chemistry, Evotec UK, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K.
| | - Alexis Laux-Biehlmann
- Exploratory
Pathobiology, RED preMED, R&D, Bayer
AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Daniel Basting
- Pharmaceutical
R&D, Drug Discovery, Lead Identification and Characterization, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Stuart Flanagan
- Discovery
Chemistry, Evotec UK, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K.
| | - Hideki Miyatake Ondozabal
- Pharmaceutical
R&D, Drug Discovery, Medicinal Chemistry, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany
| | - Stefan Bäurle
- Pharmaceutical
R&D, Drug Discovery, Medicinal Chemistry, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany
| | - Christopher Pearson
- Discovery
Chemistry, Evotec UK, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K.
| | - James Jenkins
- Discovery
Chemistry, Evotec UK, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K.
| | - Philip Elves
- Discovery
Chemistry, Evotec UK, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K.
| | - Stephen Hess
- In
Vitro Pharmacology, Evotec SE, Manfred Eigen Campus, Essener Bogen
7, 22419 Hamburg, Germany
| | - Anne-Marie Coelho
- In Vivo Pharmacology, Evotec SE, Manfred Eigen Campus, Essener Bogen 7, 22419 Hamburg, Germany
| | - Andrea Rotgeri
- Pharmaceutical
R&D, Early Development, Drug Metabolism and Pharmacokinetics, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany
| | - Ulrich Bothe
- Pharmaceutical
R&D, Drug Discovery, Medicinal Chemistry, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany
| | - Schanila Nawaz
- In Vivo Pharmacology, Evotec SE, Manfred Eigen Campus, Essener Bogen 7, 22419 Hamburg, Germany
| | - Thomas M. Zollner
- Pharmaceutical
R&D, Preclinical Research, Therapeutic Area Endocrinology, Metabolism
and Reproductive Health, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany
| | - Andreas Steinmeyer
- Pharmaceutical
R&D, Drug Discovery, Medicinal Chemistry, Bayer AG, Müllerstr. 178, 13353 Berlin, Germany
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14
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Silverman HA, Tynan A, Hepler TD, Chang EH, Gunasekaran M, Li JH, Huerta TS, Tsaava T, Chang Q, Addorisio ME, Chen AC, Thompson DA, Pavlov VA, Brines M, Tracey KJ, Chavan SS. Transient Receptor Potential Ankyrin-1-expressing vagus nerve fibers mediate IL-1β induced hypothermia and reflex anti-inflammatory responses. Mol Med 2023; 29:4. [PMID: 36650454 PMCID: PMC9847185 DOI: 10.1186/s10020-022-00590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 12/11/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Inflammation, the physiological response to infection and injury, is coordinated by the immune and nervous systems. Interleukin-1β (IL-1β) and other cytokines produced during inflammatory responses activate sensory neurons (nociceptors) to mediate the onset of pain, sickness behavior, and metabolic responses. Although nociceptors expressing Transient Receptor Potential Ankyrin-1 (TRPA1) can initiate inflammation, comparatively little is known about the role of TRPA1 nociceptors in the physiological responses to specific cytokines. METHODS To monitor body temperature in conscious and unrestrained mice, telemetry probes were implanted into peritoneal cavity of mice. Using transgenic and tissue specific knockouts and chemogenetic techniques, we recorded temperature responses to the potent pro-inflammatory cytokine IL-1β. Using calcium imaging, whole cell patch clamping and whole nerve recordings, we investigated the role of TRPA1 during IL-1β-mediated neuronal activation. Mouse models of acute endotoxemia and sepsis were used to elucidate how specific activation, with optogenetics and chemogenetics, or ablation of TRPA1 neurons can affect the outcomes of inflammatory insults. All statistical tests were performed with GraphPad Prism 9 software and for all analyses, P ≤ 0.05 was considered statistically significant. RESULTS Here, we describe a previously unrecognized mechanism by which IL-1β activates afferent vagus nerve fibers to trigger hypothermia, a response which is abolished by selective silencing of neuronal TRPA1. Afferent vagus nerve TRPA1 signaling also inhibits endotoxin-stimulated cytokine storm and significantly reduces the lethality of bacterial sepsis. CONCLUSION Thus, IL-1β activates TRPA1 vagus nerve signaling in the afferent arm of a reflex anti-inflammatory response which inhibits cytokine release, induces hypothermia, and reduces the mortality of infection. This discovery establishes that TRPA1, an ion channel known previously as a pro-inflammatory detector of cold, pain, itch, and a wide variety of noxious molecules, also plays a specific anti-inflammatory role via activating reflex anti-inflammatory activity.
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Affiliation(s)
- Harold A Silverman
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Aisling Tynan
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Tyler D Hepler
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Eric H Chang
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, 500 Hofstra Blvd, Hempstead, NY, 11549, USA
- The Elmezzi Graduate School of Molecular Medicine, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Manojkumar Gunasekaran
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Jian Hua Li
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Tomás S Huerta
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, 500 Hofstra Blvd, Hempstead, NY, 11549, USA
| | - Tea Tsaava
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Qing Chang
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Meghan E Addorisio
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Adrian C Chen
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Dane A Thompson
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
- Department of Surgery, North Shore University Hospital, Northwell Health, 300 Community Drive, Manhasset, NY, 11030, USA
- The Elmezzi Graduate School of Molecular Medicine, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Valentin A Pavlov
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, 500 Hofstra Blvd, Hempstead, NY, 11549, USA
- The Elmezzi Graduate School of Molecular Medicine, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Michael Brines
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Kevin J Tracey
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA.
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, 500 Hofstra Blvd, Hempstead, NY, 11549, USA.
- The Elmezzi Graduate School of Molecular Medicine, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA.
| | - Sangeeta S Chavan
- Laboratory for Biomedical Sciences, Institute for Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA.
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, 500 Hofstra Blvd, Hempstead, NY, 11549, USA.
- The Elmezzi Graduate School of Molecular Medicine, Northwell Health, 350 Community Drive, Manhasset, NY, 11030, USA.
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15
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Yao K, Dou B, Zhang Y, Chen Z, Li Y, Fan Z, Ma Y, Du S, Wang J, Xu Z, Liu Y, Lin X, Wang S, Guo Y. Inflammation-the role of TRPA1 channel. Front Physiol 2023; 14:1093925. [PMID: 36875034 PMCID: PMC9977828 DOI: 10.3389/fphys.2023.1093925] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Recently, increasing numbers of studies have demonstrated that transient receptor potential ankyrin 1 (TRPA1) can be used as a potential target for the treatment of inflammatory diseases. TRPA1 is expressed in both neuronal and non-neuronal cells and is involved in diverse physiological activities, such as stabilizing of cell membrane potential, maintaining cellular humoral balance, and regulating intercellular signal transduction. TRPA1 is a multi-modal cell membrane receptor that can sense different stimuli, and generate action potential signals after activation via osmotic pressure, temperature, and inflammatory factors. In this study, we introduced the latest research progress on TRPA1 in inflammatory diseases from three different aspects. First, the inflammatory factors released after inflammation interacts with TRPA1 to promote inflammatory response; second, TRPA1 regulates the function of immune cells such as macrophages and T cells, In addition, it has anti-inflammatory and antioxidant effects in some inflammatory diseases. Third, we have summarized the application of antagonists and agonists targeting TRPA1 in the treatment of some inflammatory diseases.
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Affiliation(s)
- Kaifang Yao
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Baomin Dou
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yue Zhang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhihan Chen
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanwei Li
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zezhi Fan
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yajing Ma
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Simin Du
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jiangshan Wang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhifang Xu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Yangyang Liu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Xiaowei Lin
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Shenjun Wang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Yi Guo
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China.,School of Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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16
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Modulation of Glia Activation by TRPA1 Antagonism in Preclinical Models of Migraine. Int J Mol Sci 2022; 23:ijms232214085. [PMID: 36430567 PMCID: PMC9697613 DOI: 10.3390/ijms232214085] [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: 10/13/2022] [Revised: 11/09/2022] [Accepted: 11/13/2022] [Indexed: 11/17/2022] Open
Abstract
Preclinical data point to the contribution of transient receptor potential ankyrin 1 (TRPA1) channels to the complex mechanisms underlying migraine pain. TRPA1 channels are expressed in primary sensory neurons, as well as in glial cells, and they can be activated/sensitized by inflammatory mediators. The aim of this study was to investigate the relationship between TRPA1 channels and glial activation in the modulation of trigeminal hyperalgesia in preclinical models of migraine based on acute and chronic nitroglycerin challenges. Rats were treated with ADM_12 (TRPA1 antagonist) and then underwent an orofacial formalin test to assess trigeminal hyperalgesia. mRNA levels of pro- and anti-inflammatory cytokines, calcitonin gene-related peptide (CGRP) and glia cell activation were evaluated in the Medulla oblongata and in the trigeminal ganglia. In the nitroglycerin-treated rats, ADM_12 showed an antihyperalgesic effect in both acute and chronic models, and it counteracted the changes in CGRP and cytokine gene expression. In the acute nitroglycerin model, ADM_12 reduced nitroglycerin-induced increase in microglial and astroglial activation in trigeminal nucleus caudalis area. In the chronic model, we detected a nitroglycerin-induced activation of satellite glial cells in the trigeminal ganglia that was inhibited by ADM_12. These findings show that TRPA1 antagonism reverts experimentally induced hyperalgesia in acute and chronic models of migraine and prevents multiple changes in inflammatory pathways by modulating glial activation.
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17
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Wei Y, Cai J, Zhu R, Xu K, Li H, Li J. Function and therapeutic potential of transient receptor potential ankyrin 1 in fibrosis. Front Pharmacol 2022; 13:1014041. [PMID: 36278189 PMCID: PMC9582847 DOI: 10.3389/fphar.2022.1014041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/26/2022] [Indexed: 11/18/2022] Open
Abstract
The transient receptor potential (TRP) protein superfamily is a special group of cation channels expressed in different cell types and signaling pathways. In this review, we focus on TRPA1 (transient receptor potential ankyrin 1), an ion channel in this family that exists in the cell membrane and shows a different function from other TRP channels. TRPA1 usually has a special activation effect that can induce cation ions, especially calcium ions, to flow into activated cells. In this paper, we review the role of TRPA1 in fibroblasts. To clarify the relationship between fibroblasts and TRPA1, we have also paid special attention to the interactions between TRPA1 and inflammatory factors leading to fibroblast activation. TRPA1 has different functions in the fibrosis process in different organs, and there have also been interesting discussions of the mechanism of TRPA1 in fibroblasts. Therefore, this review aims to describe the function of TRP channels in controlling fibrosis through fibroblasts in different organ inflammatory and immune-mediated diseases. We attempt to prove that TRPA1 is a target for fibrosis. In fact, some clinical trials have already proven that TRPA1 is a potential adjuvant therapy for treating fibrosis.
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Affiliation(s)
- Yicheng Wei
- Third Affiliated Hospital of Shanghai University/Wenzhou People’s Hospital, Wenzhou, China
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Hefei, Anhui, China
- Interventional Cancer Institute of Chinese Integrative Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jialuo Cai
- Interventional Cancer Institute of Chinese Integrative Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Ruiqiu Zhu
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Hefei, Anhui, China
- Interventional Cancer Institute of Chinese Integrative Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ke Xu
- Musculoskeletal Organoid Research Center, Institute of Translational Medicine, Shanghai University, Shanghai, China
- Wenzhou Institute of Shanghai University, Wenzhou, China
- *Correspondence: Ke Xu, , ; Hongchang Li, ; Jianxin Li,
| | - Hongchang Li
- Department of General Surgery, Institute of Fudan–Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
- *Correspondence: Ke Xu, , ; Hongchang Li, ; Jianxin Li,
| | - Jianxin Li
- Third Affiliated Hospital of Shanghai University/Wenzhou People’s Hospital, Wenzhou, China
- *Correspondence: Ke Xu, , ; Hongchang Li, ; Jianxin Li,
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18
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Kuvaeva EE, Mertsalov IB, Simonova OB. Transient Receptor Potential (TRP) Family of Channel Proteins. Russ J Dev Biol 2022. [DOI: 10.1134/s1062360422050046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Kazandzhieva K, Mammadova-Bach E, Dietrich A, Gudermann T, Braun A. TRP channel function in platelets and megakaryocytes: basic mechanisms and pathophysiological impact. Pharmacol Ther 2022; 237:108164. [PMID: 35247518 DOI: 10.1016/j.pharmthera.2022.108164] [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: 11/15/2021] [Revised: 01/29/2022] [Accepted: 02/28/2022] [Indexed: 12/30/2022]
Abstract
Transient receptor potential (TRP) proteins form a superfamily of cation channels that are expressed in a wide range of tissues and cell types. During the last years, great progress has been made in understanding the molecular complexity and the functions of TRP channels in diverse cellular processes, including cell proliferation, migration, adhesion and activation. The diversity of functions depends on multiple regulatory mechanisms by which TRP channels regulate Ca2+ entry mechanisms and intracellular Ca2+ dynamics, either through membrane depolarization involving cation influx or store- and receptor-operated mechanisms. Abnormal function or expression of TRP channels results in vascular pathologies, including hypertension, ischemic stroke and inflammatory disorders through effects on vascular cells, including the components of blood vessels and platelets. Moreover, some TRP family members also regulate megakaryopoiesis and platelet production, indicating a complex role of TRP channels in pathophysiological conditions. In this review, we describe potential roles of TRP channels in megakaryocytes and platelets, as well as their contribution to diseases such as thrombocytopenia, thrombosis and stroke. We also critically discuss the potential of TRP channels as possible targets for disease prevention and treatment.
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Affiliation(s)
- Kalina Kazandzhieva
- Walther-Straub-Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University, Munich, Germany
| | - Elmina Mammadova-Bach
- Walther-Straub-Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University, Munich, Germany; Division of Nephrology, Department of Medicine IV, Ludwig-Maximilians-University Hospital, Munich, Germany
| | - Alexander Dietrich
- Walther-Straub-Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University, Munich, Germany; German Center for Lung Research (DZL), Munich, Germany
| | - Thomas Gudermann
- Walther-Straub-Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University, Munich, Germany; German Center for Lung Research (DZL), Munich, Germany.
| | - Attila Braun
- Walther-Straub-Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University, Munich, Germany.
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20
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Zimova L, Ptakova A, Mitro M, Krusek J, Vlachova V. Activity dependent inhibition of TRPC1/4/5 channels by duloxetine involves voltage sensor-like domain. Biomed Pharmacother 2022; 152:113262. [PMID: 35691156 DOI: 10.1016/j.biopha.2022.113262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022] Open
Abstract
Transient receptor potential canonical 5 (TRPC5) is a polymodal, calcium-permeable, nonselective ion channel that is expressed in the brain and 75 % of human sensory neurons. Its pharmacological or genetic inhibition leads to the relief of neuropathic and inflammatory pain. The clinically approved drug duloxetine is superior to other serotonin and norepinephrine reuptake inhibitors at managing painful neuropathies, but it is not known why. Here we ask whether the TRPC5 receptor is modulated by duloxetine and may contribute to its analgesic effect. Electrophysiological measurements of heterologously expressed human TRPC5 in HEK293T cells were performed to evaluate the effect of duloxetine. The interaction site was identified by molecular docking and molecular dynamics simulations in combination with point mutagenesis. We found that duloxetine inhibits TRPC5 in a concentration-dependent manner with a high potency (IC50 = 0.54 ± 0.03 µM). Our data suggest that duloxetine binds into a voltage sensor-like domain. For the interaction, Glu418 exhibited particular importance due to putative hydrogen bond formation. Duloxetine effectively inhibits TRPC5 currents induced by cooling, voltage, direct agonists and by the stimulation of the PLC pathway. The finding that this TRPC5 inhibitor is widely used and well tolerated provides a scaffold for new pain treatment strategies.
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Affiliation(s)
- Lucie Zimova
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Alexandra Ptakova
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic; Faculty of Science, Charles University in Prague, Prague, Czech Republic.
| | - Michal Mitro
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic; Faculty of Science, Charles University in Prague, Prague, Czech Republic.
| | - Jan Krusek
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Viktorie Vlachova
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
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21
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Marcotti A, Fernández-Trillo J, González A, Vizcaíno-Escoto M, Ros-Arlanzón P, Romero L, Vela JM, Gomis A, Viana F, de la Peña E. TRPA1 modulation by Sigma-1 receptor prevents oxaliplatin-induced painful peripheral neuropathy. Brain 2022; 146:475-491. [PMID: 35871491 PMCID: PMC9924907 DOI: 10.1093/brain/awac273] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 05/30/2022] [Accepted: 07/03/2022] [Indexed: 11/13/2022] Open
Abstract
Chemotherapy-induced peripheral neuropathy is a frequent, disabling side effect of anticancer drugs. Oxaliplatin, a platinum compound used in the treatment of advanced colorectal cancer, often leads to a form of chemotherapy-induced peripheral neuropathy characterized by mechanical and cold hypersensitivity. Current therapies for chemotherapy-induced peripheral neuropathy are ineffective, often leading to the cessation of treatment. Transient receptor potential ankyrin 1 (TRPA1) is a polymodal, non-selective cation-permeable channel expressed in nociceptors, activated by physical stimuli and cellular stress products. TRPA1 has been linked to the establishment of chemotherapy-induced peripheral neuropathy and other painful neuropathic conditions. Sigma-1 receptor is an endoplasmic reticulum chaperone known to modulate the function of many ion channels and receptors. Sigma-1 receptor antagonist, a highly selective antagonist of Sigma-1 receptor, has shown effectiveness in a phase II clinical trial for oxaliplatin chemotherapy-induced peripheral neuropathy. However, the mechanisms involved in the beneficial effects of Sigma-1 receptor antagonist are little understood. We combined biochemical and biophysical (i.e. intermolecular Förster resonance energy transfer) techniques to demonstrate the interaction between Sigma-1 receptor and human TRPA1. Pharmacological antagonism of Sigma-1R impaired the formation of this molecular complex and the trafficking of functional TRPA1 to the plasma membrane. Using patch-clamp electrophysiological recordings we found that antagonists of Sigma-1 receptor, including Sigma-1 receptor antagonist, exert a marked inhibition on plasma membrane expression and function of human TRPA1 channels. In TRPA1-expressing mouse sensory neurons, Sigma-1 receptor antagonists reduced inward currents and the firing of actions potentials in response to TRPA1 agonists. Finally, in a mouse experimental model of oxaliplatin neuropathy, systemic treatment with a Sigma-1 receptor antagonists prevented the development of painful symptoms by a mechanism involving TRPA1. In summary, the modulation of TRPA1 channels by Sigma-1 receptor antagonists suggests a new strategy for the prevention and treatment of chemotherapy-induced peripheral neuropathy and could inform the development of novel therapeutics for neuropathic pain.
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Affiliation(s)
- Aida Marcotti
- Present address: Instituto de Farmacología Experimental de Córdoba (IFEC) – CONICET, Haya de la Torre y Medina Allende, Ciudad Universitaria, Córdoba 5000, Argentina
| | | | - Alejandro González
- Present address: Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Marta Vizcaíno-Escoto
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, 03550 San Juan de Alicante, Spain
| | - Pablo Ros-Arlanzón
- Present address: Institute for Health and Biomedical Research (ISABIAL), 03550 San Juan de Alicante, Spain
| | - Luz Romero
- WeLab Barcelona, Parc Científic de Barcelona, 08028 Barcelona, Spain
| | - José Miguel Vela
- WeLab Barcelona, Parc Científic de Barcelona, 08028 Barcelona, Spain
| | - Ana Gomis
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, 03550 San Juan de Alicante, Spain
| | - Félix Viana
- Correspondence may also be addressed to: Felix Viana E-mail:
| | - Elvira de la Peña
- Correspondence to: Elvira de la Peña Instituto de Neurociencias de Alicante Universidad Miguel Hernández-CSIC 03550 San Juan de Alicante, Spain E-mail:
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22
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Pyatigorskaya NV, Filippova OV, Nikolenko NS, Kravchenko AD. Transient receptor potential Ankyrin 1: structure, function and ligands. RESEARCH RESULTS IN PHARMACOLOGY 2022. [DOI: 10.3897/rrpharmacology.8.90214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Transient receptor potential ankyrin 1 (TRPA1) is a protein expressed in many living organisms. During the study of TRPA1, its unique biological role as a universal and polymodal sensor of various altering agents was found. The aim of this study is to search and generalize information about structural features and molecular determinants, mechanisms of activation, action and modulation of TRPA1 as a universal pain and inflammation sensor, as well as the nature of activators and antagonists of this target and their therapeutic potential.
Materials and methods: This article presents an overview of the results of scientific research of TRPA1, its modulators, as well as an overview of their pharmacological potential over the period from the discovery of these channels to the present, with an emphasis on the last decade.
Results and discussion: The main collected data on expression, structural features and molecular determinants, mechanisms of activation and action of TRPA1 indicate its role as a universal and labile element of the primary response of the body to adverse exogenous and endogenous factors. Regardless of the nature of the stimulus, hyperstimulation of TRPA1 channels can lead to such phenomena as pain, inflammation, itching, edema and other manifestations of alteration, and therefore TRPA1 blockade can be used in the treatment of various diseases accompanied by these pathological conditions. Currently, TRPA1 antagonists are being actively searched for and studied, as evidenced by a high patent activity over the past 14 years; however, the molecular mechanisms of action and pharmacological properties of TRPA1 blockers remain understudied.
Conclusion: Acquire of new information about TRPA1 will help in the development of its modulators, which can become promising analgesics, anti-inflammatory drugs, bronchodilators, and agents for the treatment of cardiovascular diseases of new generations.
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23
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Camponogara C, Oliveira SM. Are TRPA1 and TRPV1 channel-mediated signalling cascades involved in UVB radiation-induced sunburn? ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 92:103836. [PMID: 35248760 DOI: 10.1016/j.etap.2022.103836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/09/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Burn injuries are underappreciated injuries associated with substantial morbidity and mortality. Overexposure to ultraviolet (UV) radiation has dramatic clinical effects in humans and is a significant public health concern. Although the mechanisms underlying UVB exposure are not fully understood, many studies have made substantial progress in the pathophysiology of sunburn in terms of its molecular aspects in the last few years. It is well established that the transient receptor potential ankyrin 1 (TRPA1), and vanilloid 1 (TRPV1) channels modulate the inflammatory, oxidative, and proliferative processes underlying UVB radiation exposure. However, it is still unknown which mechanisms underlying TRPV1/A1 channel activation are elicited in sunburn induced by UVB radiation. Therefore, in this review, we give an overview of the TRPV1/A1 channel-mediated signalling cascades that may be involved in the pathophysiology of sunburn induced by UVB radiation. These data will undoubtedly help to explain the various features of sunburn and contribute to the development of novel therapeutic approaches to better treat it.
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Affiliation(s)
- Camila Camponogara
- Graduated Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sara Marchesan Oliveira
- Graduated Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil; Department of Biochemistry and Molecular Biology, Centre of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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24
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Velasco E, Delicado‐Miralles M, Hellings PW, Gallar J, Van Gerven L, Talavera K. Epithelial and sensory mechanisms of nasal hyperreactivity. Allergy 2022; 77:1450-1463. [PMID: 35174893 DOI: 10.1111/all.15259] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 02/06/2022] [Accepted: 02/14/2022] [Indexed: 11/28/2022]
Abstract
"Nasal hyperreactivity" is a key feature in various phenotypes of upper airway diseases, whereby reactions of the nasal epithelium to diverse chemical and physical stimuli are exacerbated. In this review, we illustrate how nasal hyperreactivity can result from at least three types of mechanisms: (1) impaired barrier function, (2) hypersensitivity to external and endogenous stimuli, and (3) potentiation of efferent systems. We describe the known molecular basis of hyperreactivity related to the functional impairment of epithelial cells and somatosensory innervation, and indicate that the thermal, chemical, and mechanical sensors determining hyperreactivity in humans remain to be identified. We delineate research directions that may provide new insights into nasal hyperreactivity associated with rhinitis/rhinosinusitis pathophysiology and therapeutics. The elucidation of the molecular mechanisms underlying nasal hyperreactivity is essential for the treatment of rhinitis according to the precepts of precision medicine.
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Affiliation(s)
- Enrique Velasco
- Instituto de Neurociencias Universidad Miguel Hernández‐CSIC San Juan de Alicante Spain
- The European University of Brain and Technology‐Neurotech EU San Juan de Alicante Spain
| | | | - Peter W. Hellings
- Department of Otorhinolaryngology University Hospitals Leuven Leuven Belgium
| | - Juana Gallar
- Instituto de Neurociencias Universidad Miguel Hernández‐CSIC San Juan de Alicante Spain
- The European University of Brain and Technology‐Neurotech EU San Juan de Alicante Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante San Juan de Alicante Spain
| | - Laura Van Gerven
- Department of Otorhinolaryngology University Hospitals Leuven Leuven Belgium
- Department of Microbiology, Immunology and transplantation, Allergy and Clinical Immunology Research Unit KU Leuven Leuven Belgium
- Department of Neurosciences, Experimental Otorhinolaryngology, Rhinology Research KU Leuven Leuven Belgium
| | - Karel Talavera
- Laboratory of Ion Channel Research Department of Cellular and Molecular Medicine KU Leuven, VIB‐KU Leuven Center for Brain & Disease Research Leuven Belgium
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25
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Boudaka A, Tominaga M. Physiological and Pathological Significance of Esophageal TRP Channels: Special Focus on TRPV4 in Esophageal Epithelial Cells. Int J Mol Sci 2022; 23:ijms23094550. [PMID: 35562940 PMCID: PMC9099744 DOI: 10.3390/ijms23094550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/16/2022] [Accepted: 04/19/2022] [Indexed: 12/10/2022] Open
Abstract
Transient receptor potential vanilloid 4 (TRPV4) is a non-selective cation channel that is broadly expressed in different human tissues, including the digestive system, where it acts as a molecular sensor and a transducer that regulates a variety of functional activities. Despite the extensive research to determine the role of this channel in the physiology and pathophysiology of different organs, the unique morphological and functional features of TRPV4 in the esophagus remain largely unknown. Ten years ago, TRPV4 was shown to be highly expressed in esophageal epithelial cells where its activation induces Ca2+-dependent ATP release, which, in turn, mediates several functions, ranging from mechanosensation to wound healing. This review summarizes the research progress on TRPV4, and focuses on the functional expression of TRPV4 in esophageal epithelium and its possible role in different esophageal diseases that would support TRPV4 as a candidate target for future therapeutic approaches to treat patients with these conditions.
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Affiliation(s)
- Ammar Boudaka
- Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, Al-Khoud, P.O. Box 35, Muscat 123, Oman
- Division of Cell Signaling, National Institute for Physiological Sciences, Okazaki 444-8787, Aichi, Japan;
- Correspondence:
| | - Makoto Tominaga
- Division of Cell Signaling, National Institute for Physiological Sciences, Okazaki 444-8787, Aichi, Japan;
- Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki 444-8787, Aichi, Japan
- Exploratory Research Center on Life and Living Systems, Thermal Biology Group, Okazaki 444-8787, Aichi, Japan
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26
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He J, Li B, Han S, Zhang Y, Liu K, Yi S, Liu Y, Xiu M. Drosophila as a Model to Study the Mechanism of Nociception. Front Physiol 2022; 13:854124. [PMID: 35418874 PMCID: PMC8996152 DOI: 10.3389/fphys.2022.854124] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/28/2022] [Indexed: 12/15/2022] Open
Abstract
Nociception refers to the process of encoding and processing noxious stimuli, which allow animals to detect and avoid potentially harmful stimuli. Several types of stimuli can trigger nociceptive sensory transduction, including thermal, noxious chemicals, and harsh mechanical stimulation that depend on the corresponding nociceptors. In view of the high evolutionary conservation of the mechanisms that govern nociception from Drosophila melanogaster to mammals, investigation in the fruit fly Drosophila help us understand how the sensory nervous system works and what happen in nociception. Here, we present an overview of currently identified conserved genetics of nociception, the nociceptive sensory neurons responsible for detecting noxious stimuli, and various assays for evaluating different nociception. Finally, we cover development of anti-pain drug using fly model. These comparisons illustrate the value of using Drosophila as model for uncovering nociception mechanisms, which are essential for identifying new treatment goals and developing novel analgesics that are applicable to human health.
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Affiliation(s)
- Jianzheng He
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
- Key Laboratory for Transfer of Dunhuang Medicine at the Provincial and Ministerial Level, Gansu University of Chinese Medicine, Lanzhou, China
| | - Botong Li
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Shuzhen Han
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Yuan Zhang
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Kai Liu
- College of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Simeng Yi
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yongqi Liu
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- Key Laboratory for Transfer of Dunhuang Medicine at the Provincial and Ministerial Level, Gansu University of Chinese Medicine, Lanzhou, China
- *Correspondence: Yongqi Liu,
| | - Minghui Xiu
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- Key Laboratory for Transfer of Dunhuang Medicine at the Provincial and Ministerial Level, Gansu University of Chinese Medicine, Lanzhou, China
- College of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
- Minghui Xiu,
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27
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Habgood M, Seiferth D, Zaki AM, Alibay I, Biggin PC. Atomistic mechanisms of human TRPA1 activation by electrophile irritants through molecular dynamics simulation and mutual information analysis. Sci Rep 2022; 12:4929. [PMID: 35322090 PMCID: PMC8943162 DOI: 10.1038/s41598-022-08824-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/07/2022] [Indexed: 12/16/2022] Open
Abstract
The ion channel TRPA1 is a promiscuous chemosensor, with reported response to a wide spectrum of noxious electrophilic irritants, as well as cold, heat, and mechanosensation. It is also implicated in the inception of itch and pain and has hence been investigated as a drug target for novel analgesics. The mechanism of electrophilic activation for TRPA1 is therefore of broad interest. TRPA1 structures with the pore in both open and closed states have recently been published as well as covalent binding modes for electrophile agonists. However, the detailed mechanism of coupling between electrophile binding sites and the pore remains speculative. In addition, while two different cysteine residues (C621 and C665) have been identified as critical for electrophile bonding and activation, the bound geometry has only been resolved at C621. Here, we use molecular dynamics simulations of TRPA1 in both pore-open and pore-closed states to explore the allosteric link between the electrophile binding sites and pore stability. Our simulations reveal that an open pore is structurally stable in the presence of open ‘pockets’ in the C621/C665 region, but rapidly collapses and closes when these pockets are shut. Binding of electrophiles at either C621 or C665 provides stabilisation of the pore-open state, but molecules bound at C665 are shown to be able to rotate in and out of the pocket, allowing for immediate stabilisation of transient open states. Finally, mutual information analysis of trajectories reveals an informational path linking the electrophile binding site pocket to the pore via the voltage-sensing-like domain, giving a detailed insight into the how the pore is stabilized in the open state.
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Affiliation(s)
- Matthew Habgood
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK. .,AWE Aldermaston, Reading, Berkshire, RG7 4PR, UK.
| | - David Seiferth
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Afroditi-Maria Zaki
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Irfan Alibay
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Philip C Biggin
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK.
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28
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Ma Q. A functional subdivision within the somatosensory system and its implications for pain research. Neuron 2022; 110:749-769. [PMID: 35016037 PMCID: PMC8897275 DOI: 10.1016/j.neuron.2021.12.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/07/2021] [Accepted: 12/09/2021] [Indexed: 12/12/2022]
Abstract
Somatosensory afferents are traditionally classified by soma size, myelination, and their response specificity to external and internal stimuli. Here, we propose the functional subdivision of the nociceptive somatosensory system into two branches. The exteroceptive branch detects external threats and drives reflexive-defensive reactions to prevent or limit injury. The interoceptive branch senses the disruption of body integrity, produces tonic pain with strong aversive emotional components, and drives self-caring responses toward to the injured region to reduce suffering. The central thesis behind this functional subdivision comes from a reflection on the dilemma faced by the pain research field, namely, the use of reflexive-defensive behaviors as surrogate assays for interoceptive tonic pain. The interpretation of these assays is now being challenged by the discovery of distinct but interwoven circuits that drive exteroceptive versus interoceptive types of behaviors, with the conflation of these two components contributing partially to the poor translation of therapies from preclinical studies.
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Affiliation(s)
- Qiufu Ma
- Dana-Farber Cancer Institute and Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.
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29
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Villalba‐Riquelme E, de la Torre‐Martínez R, Fernández‐Carvajal A, Ferrer‐Montiel A. Paclitaxel in vitro reversibly sensitizes the excitability of IB4(-) and IB4(+) sensory neurons from male and female rats. Br J Pharmacol 2022; 179:3693-3710. [PMID: 35102580 PMCID: PMC9311666 DOI: 10.1111/bph.15809] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 01/03/2022] [Accepted: 01/23/2022] [Indexed: 11/27/2022] Open
Affiliation(s)
- Eva Villalba‐Riquelme
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE)Universitas Miguel HernándezElcheSpain
| | | | - Asia Fernández‐Carvajal
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE)Universitas Miguel HernándezElcheSpain
| | - Antonio Ferrer‐Montiel
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE)Universitas Miguel HernándezElcheSpain
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30
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Nickerson AP, Corbin LJ, Timpson NJ, Phillips K, Pickering AE, Dunham JP. Evaluating the association of TRPA1 gene polymorphisms with pain sensitivity: a protocol for an adaptive recall by genotype study. BMC Med Genomics 2022; 15:9. [PMID: 35022050 PMCID: PMC8753821 DOI: 10.1186/s12920-022-01156-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 01/01/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Pain is a complex polygenic trait whose common genetic underpinnings are relatively ill-defined due in part to challenges in measuring pain as a phenotype. Pain sensitivity can be quantified, but this is difficult to perform at the scale required for genome wide association studies (GWAS). Existing GWAS of pain have identified surprisingly few loci involved in nociceptor function which contrasts strongly with rare monogenic pain states. This suggests a lack of resolution with current techniques. We propose an adaptive methodology within a recall-by-genotype (RbG) framework using detailed phenotyping to screen minor alleles in a candidate 'nociceptor' gene in an attempt to estimate their genetic contribution to pain. METHODS/DESIGN Participants of the Avon Longitudinal Study of Parents and Children will be recalled on the basis of genotype at five common non-synonomous SNPs in the 'nociceptor' gene transient receptor potential ankylin 1 (TRPA1). Those homozygous for the common alleles at each of the five SNPs will represent a control group. Individuals homozygous for the minor alleles will then be recruited in a series of three sequential test groups. The outcome of a pre-planned early assessment (interim) of the current test group will determine whether to continue recruitment or switch to the next test group. Pain sensitivity will be assessed using quantitative sensory testing (QST) before and after topical application of 10% cinnamaldehyde (a TRPA1 agonist). DISCUSSION The design of this adaptive RbG study offers efficiency in the assessment of associations between genetic variation at TRPA1 and detailed pain phenotypes. The possibility to change the test group in response to preliminary data increases the likelihood to observe smaller effect sizes relative to a conventional multi-armed design, as well as reducing futile testing of participants where an effect is unlikely to be observed. This specific adaptive RbG design aims to uncover the influence of common TRPA1 variants on pain sensation but can be applied to any hypothesis-led genotype study where costly and time intensive investigation is required and / or where there is large uncertainty around the expected effect size. TRIAL REGISTRATION ISRCTN, ISRCTN16294731. Retrospectively registered 25th November 2021.
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Affiliation(s)
- Aidan P Nickerson
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK
- Anaesthesia, Pain and Critical Care Sciences, University of Bristol, Bristol, UK
- Eli Lilly and Company, 8 Arlington Square West, Bracknell, RG12 1WA, UK
| | - Laura J Corbin
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS8 2BN, UK
| | - Nicholas J Timpson
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS8 2BN, UK
| | - Keith Phillips
- Eli Lilly and Company, 8 Arlington Square West, Bracknell, RG12 1WA, UK
| | - Anthony E Pickering
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK
- Anaesthesia, Pain and Critical Care Sciences, University of Bristol, Bristol, UK
| | - James P Dunham
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK.
- Anaesthesia, Pain and Critical Care Sciences, University of Bristol, Bristol, UK.
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31
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Saldana-Morales FB, Kim DV, Tsai MT, Diehl GE. Healthy Intestinal Function Relies on Coordinated Enteric Nervous System, Immune System, and Epithelium Responses. Gut Microbes 2022; 13:1-14. [PMID: 33929291 PMCID: PMC8096330 DOI: 10.1080/19490976.2021.1916376] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
During both health and disease, a coordinated response between the epithelium, immune system, and enteric nervous system is required for proper intestinal function. While each system responds to a number of common stimuli, their coordinated responses support digestion as well as responses and recovery following injury or pathogenic infections. In this review, we discuss how individual responses to common signals work together to support these critical functions.
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Affiliation(s)
- Fatima B. Saldana-Morales
- Graduate School of Biomedical Sciences, Baylor College of Medicine, HoustonTXUSA,Immunology Program of the Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NYUSA
| | - Dasom V. Kim
- Immunology Program of the Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NYUSA,Immunology and Microbial Pathogenesis Program, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Ming-Ting Tsai
- Graduate School of Biomedical Sciences, Baylor College of Medicine, HoustonTXUSA,Immunology Program of the Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NYUSA
| | - Gretchen E. Diehl
- Immunology Program of the Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NYUSA,Immunology and Microbial Pathogenesis Program, Weill Cornell Medical College, Cornell University, New York, NY, USA,CONTACT Gretchen E. Diehl Immunology Program of the Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY10021, USA. Immunology and Microbial Pathogenesis Program, Weill Cornell Medical College, Cornell University, New York, NY, USA
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32
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Kim S, Kim M, Sung JS. Exposure of Toluene Diisocyanate Induces DUSP6 and p53 through Activation of TRPA1 Receptor. Int J Mol Sci 2022; 23:ijms23010517. [PMID: 35008945 PMCID: PMC8745568 DOI: 10.3390/ijms23010517] [Citation(s) in RCA: 1] [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: 11/23/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 01/27/2023] Open
Abstract
Toluene diisocyanate (TDI), a major intermediate agent used in the manufacturing industry, causes respiratory symptoms when exposed to the human body. In this study, we aimed to determine the molecular mechanism of TDI toxicity. To investigate the impact of TDI exposure on global gene expression, we performed transcriptomic analysis of human bronchial epithelial cells (BEAS-2B) after TDI treatment. Differentially expressed genes (DEGs) were sorted and used for clustering and network analysis. Among DEGs, dual-specificity phosphatase 6 (DUSP6) was one of the genes significantly changed by TDI exposure. To verify the expression level of DUSP6 and its effect on lung cells, the mRNA and protein levels of DUSP6 were analyzed. Our results showed that DUSP6 was dose-dependently upregulated by TDI treatment. Thereby, the phosphorylation of ERK1/2, one of the direct inhibitory targets of DUSP6, was decreased. TDI exposure also increased the mRNA level of p53 along with its protein and activity which trans-activates DUSP6. Since TRPA1 is known as a signal integrator activated by TDI, we analyzed the relevance of TRPA1 receptor in DUSP6 regulation. Our data revealed that up-regulation of DUSP6 mediated by TDI was blocked by a specific antagonist against TRPA1. TDI exposure attenuated the apoptotic response, which suggests that it promotes the survival of cancerous cells. In conclusion, our results suggest that TDI induces DUSP6 and p53, but attenuates ERK1/2 activity through TRPA1 receptor activation, leading to cytotoxicity.
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Affiliation(s)
| | - Min Kim
- Correspondence: (M.K.); (J.-S.S.); Tel.: +82-31-961-5132 (J.-S.S.); Fax: +82-31-961-5108 (J.-S.S.)
| | - Jung-Suk Sung
- Correspondence: (M.K.); (J.-S.S.); Tel.: +82-31-961-5132 (J.-S.S.); Fax: +82-31-961-5108 (J.-S.S.)
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Duitama M, Moreno Y, Santander SP, Casas Z, Sutachan JJ, Torres YP, Albarracín SL. TRP Channels as Molecular Targets to Relieve Cancer Pain. Biomolecules 2021; 12:1. [PMID: 35053150 PMCID: PMC8774023 DOI: 10.3390/biom12010001] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/17/2021] [Accepted: 11/23/2021] [Indexed: 12/13/2022] Open
Abstract
Transient receptor potential (TRP) channels are critical receptors in the transduction of nociceptive stimuli. The microenvironment of diverse types of cancer releases substances, including growth factors, neurotransmitters, and inflammatory mediators, which modulate the activity of TRPs through the regulation of intracellular signaling pathways. The modulation of TRP channels is associated with the peripheral sensitization observed in patients with cancer, which results in mild noxious sensory stimuli being perceived as hyperalgesia and allodynia. Secondary metabolites derived from plant extracts can induce the activation, blocking, and desensitization of TRP channels. Thus, these compounds could act as potential therapeutic agents, as their antinociceptive properties could be beneficial in relieving cancer-derived pain. In this review, we will summarize the role of TRPV1 and TRPA1 in pain associated with cancer and discuss molecules that have been reported to modulate these channels, focusing particularly on the mechanisms of channel activation associated with molecules released in the tumor microenvironment.
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Affiliation(s)
- Milena Duitama
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (M.D.); (Z.C.); (J.J.S.)
| | - Yurany Moreno
- Department of Lymphoma & Myeloma, MD Anderson Cancer Center, The University of Texas, Houston, TX 77030, USA;
| | - Sandra Paola Santander
- Phytoimmunomodulation Research Group, Juan N. Corpas University Foundation, Bogotá 111111, Colombia;
| | - Zulma Casas
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (M.D.); (Z.C.); (J.J.S.)
| | - Jhon Jairo Sutachan
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (M.D.); (Z.C.); (J.J.S.)
| | - Yolima P. Torres
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (M.D.); (Z.C.); (J.J.S.)
| | - Sonia L. Albarracín
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (M.D.); (Z.C.); (J.J.S.)
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Mazzoni M, Lattanzio G, Bonaldo A, Tagliavia C, Parma L, Busti S, Gatta PP, Bernardi N, Clavenzani P. Effect of Essential Oils on the Oxyntopeptic Cells and Somatostatin and Ghrelin Immunoreactive Cells in the European Sea Bass ( Dicentrarchus labrax) Gastric Mucosa. Animals (Basel) 2021; 11:3401. [PMID: 34944178 PMCID: PMC8697999 DOI: 10.3390/ani11123401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/17/2021] [Accepted: 11/26/2021] [Indexed: 11/23/2022] Open
Abstract
The current work was designed to assess the effect of feed supplemented with essential oils (EOs) on the histological features in sea bass's gastric mucosa. Fish were fed three diets: control diet (CTR), HERBAL MIX® made with natural EOs (N-EOs), or HERBAL MIX® made with artificial EOs obtained by synthesis (S-EOs) during a 117-day feeding trial. Thereafter, the oxyntopeptic cells (OPs) and the ghrelin (GHR) and somatostatin (SOM) enteroendocrine cells (EECs) in the gastric mucosa were evaluated. The Na+K+-ATPase antibody was used to label OPs, while, for the EECs, anti-SOM and anti-GHR antibody were used. The highest density of OP immunoreactive (IR) area was in the CTR group (0.66 mm2 ± 0.1). The OP-IR area was reduced in the N-EO diet group (0.22 mm2 ± 1; CTR vs. N-EOs, p < 0.005), while in the S-EO diet group (0.39 mm2 ± 1) a trend was observed. We observed an increase of the number of SOM-IR cells in the N-EO diet (15.6 ± 4.2) compared to that in the CTR (11.8 ± 3.7) (N-EOs vs. CTR; p < 0.05), but not in the S-EOs diet. These observations will provide a basis to advance current knowledge on the anatomy and digestive physiology of this species in relation to pro-heath feeds.
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Affiliation(s)
- Maurizio Mazzoni
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
| | - Giulia Lattanzio
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
| | - Alessio Bonaldo
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
| | - Claudio Tagliavia
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
| | - Luca Parma
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
| | - Serena Busti
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
| | - Pier Paolo Gatta
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
| | | | - Paolo Clavenzani
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, Ozzano Emilia, 40064 Bologna, Italy; (G.L.); (A.B.); (C.T.); (L.P.); (S.B.); (P.P.G.); (P.C.)
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Stucky CL, Mikesell AR. Cutaneous pain in disorders affecting peripheral nerves. Neurosci Lett 2021; 765:136233. [PMID: 34506882 PMCID: PMC8579816 DOI: 10.1016/j.neulet.2021.136233] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 08/16/2021] [Accepted: 09/02/2021] [Indexed: 02/08/2023]
Abstract
Our ability to quickly detect and respond to harmful environmental stimuli is vital for our safety and survival. This inherent acute pain detection is a "gift" because it both protects our body from harm and allows healing of damaged tissues [1]. Damage to tissues from trauma or disease can result in distorted or amplified nociceptor signaling and sensitization of the spinal cord and brain (Central Nervous System; CNS) pathways to normal input from light touch mechanoreceptors. Together, these processes can result in nagging to unbearable chronic pain and extreme sensitivity to light skin touch (allodynia). Unlike acute protective pain, chronic pain and allodynia serve no useful purpose and can severely reduce the quality of life of an affected person. Chronic pain can arise from impairment to peripheral neurons, a phenomenon called "peripheral neuropathic pain." Peripheral neuropathic pain can be caused by many insults that directly affect peripheral sensory neurons, including mechanical trauma, metabolic imbalance (e.g., diabetes), autoimmune diseases, chemotherapeutic agents, viral infections (e.g., shingles). These insults cause "acquired" neuropathies such as small-fiber neuropathies, diabetic neuropathy, chemotherapy-induced peripheral neuropathy, and post herpetic neuralgia. Peripheral neuropathic pain can also be caused by genetic factors and result in hereditary neuropathies that include Charcot-Marie-Tooth disease, rare channelopathies and Fabry disease. Many acquired and hereditary neuropathies affect the skin, our largest organ and protector of nearly our entire body. Here we review how cutaneous nociception (pain perceived from the skin) is altered following diseases that affect peripheral nerves that innervate the skin. We provide an overview of how noxious stimuli are detected and encoded by molecular transducers on subtypes of cutaneous afferent endings and conveyed to the CNS. Next, we discuss several acquired and hereditary diseases and disorders that cause painful or insensate (lack of sensation) cutaneous peripheral neuropathies, the symptoms and percepts patients experience, and how cutaneous afferents and other peripheral cell types are altered in function in these disorders. We highlight exciting new research areas that implicate non-neuronal skin cells, particularly keratinocytes, in cutaneous nociception and peripheral neuropathies. Finally, we conclude with ideas for innovative new directions, areas of unmet need, and potential opportunities for novel cutaneous therapeutics that may avoid CNS side effects, as well as ideas for improved translation of mechanisms identified in preclinical models to patients.
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Affiliation(s)
- Cheryl L Stucky
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States.
| | - Alexander R Mikesell
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
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Kim YJ, Granstein RD. Roles of calcitonin gene-related peptide in the skin, and other physiological and pathophysiological functions. Brain Behav Immun Health 2021; 18:100361. [PMID: 34746878 PMCID: PMC8551410 DOI: 10.1016/j.bbih.2021.100361] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 10/01/2021] [Accepted: 10/02/2021] [Indexed: 01/05/2023] Open
Abstract
Skin immunity is regulated by many mediator molecules. One is the neuropeptide calcitonin gene-related peptide (CGRP). CGRP has roles in regulating the function of components of the immune system including T cells, B cells, dendritic cells (DCs), endothelial cells (ECs), and mast cells (MCs). Herein we discuss actions of CGRP in mediating inflammatory and vascular effects in various cutaneous models and disorders. CGRP can help to recruit immune cells through endothelium-dependent vasodilation. CGRP plays an important role in the pathogenesis of neurogenic inflammation. Functions of many components in the immune system are influenced by CGRP. CGRP regulates various inflammatory processes in human skin by affecting different cell-types.
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Affiliation(s)
- Yee Jung Kim
- Department of Dermatology, Weill Cornell Medicine, 1305 York Avenue, WGC9, New York, NY, 10021, USA
| | - Richard D Granstein
- Department of Dermatology, Weill Cornell Medicine, 1305 York Avenue, WGC9, New York, NY, 10021, USA
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Hu F, Song X, Long D. Transient receptor potential ankyrin 1 and calcium: Interactions and association with disease (Review). Exp Ther Med 2021; 22:1462. [PMID: 34737802 PMCID: PMC8561754 DOI: 10.3892/etm.2021.10897] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 08/04/2021] [Indexed: 12/20/2022] Open
Abstract
Calcium (Ca2+) is an essential signaling molecule in all cells. It is involved in numerous fundamental functions, including cell life and death. Abnormal regulation of Ca2+ homeostasis may cause human diseases. Usually known as a member of the transient receptor potential (TRP) family, TRP ankyrin 1 (TRPA1) is the only member of the ankyrin subfamily identified in mammals so far and widely expressed in cells and tissues. As it is involved in numerous sensory disorders such as pain and pruritus, TRPA1 is a potential target for the treatment of neuropathy. The functions of TRP family members are closely related to Ca2+. TRPA1 has a high permeability to Ca2+, sodium and potassium ions as a non-selective cation channel and the Ca2+ influx mediated by TRPA1 is involved in a variety of biological processes. In the present review, research on the relationship between the TRPA1 channel and Ca2+ ions and their interaction in disease-associated processes was summarised. The therapeutic potential of the TRPA1 channel is highlighted, which is expected to become a novel direction for the prevention and treatment of health conditions such as cancer and neurodegenerative diseases.
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Affiliation(s)
- Fangyan Hu
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xiaohua Song
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Dingxin Long
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
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Mini-review: The nociceptive sensory functions of the polymodal receptor Transient Receptor Potential Ankyrin Type 1 (TRPA1). Neurosci Lett 2021; 764:136286. [PMID: 34624396 DOI: 10.1016/j.neulet.2021.136286] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 01/23/2023]
Abstract
Over the last 17 years since its cloning in 2003, the receptor-channel TRPA1 has received increasing attention due to its polymodal features and prominent role in pain signaling in a variety of human disease states. While evidence has been accumulating for non-neuronal TRPA1 expression, it is the presence of this channel in nociceptive nerve endings which has taken centre stage, due to its potential clinical ramifications. As a consequence, we shall focus in this review on the sensory functions of TRPA1 related to its expression in the peripheral nervous system. While substantial research has been focused on the putative role of TRPA1 in detecting irritant compounds, noxious cold and mechanical stimuli, the current overall picture is, to some extent, still cloudy. The chemosensory function of the channel is well demonstrated, as well as its involvement in the detection of oxidative and nitrosative stress; however, the other sensory features of TRPA1 have not been fully elucidated yet. The current state of the experimental evidence for these physiological roles of TRPA1 in mammals, and particularly in humans, will be discussed in this review.
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Naert R, López-Requena A, Talavera K. TRPA1 Expression and Pathophysiology in Immune Cells. Int J Mol Sci 2021; 22:ijms222111460. [PMID: 34768891 PMCID: PMC8583806 DOI: 10.3390/ijms222111460] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 12/18/2022] Open
Abstract
The non-selective cation channel TRPA1 is best known as a broadly-tuned sensor expressed in nociceptive neurons, where it plays key functions in chemo-, thermo-, and mechano-sensing. However, in this review we illustrate how this channel is expressed also in cells of the immune system. TRPA1 has been detected, mainly with biochemical techniques, in eosinophils, mast cells, macrophages, dendritic cells, T cells, and B cells, but not in neutrophils. Functional measurements, in contrast, remain very scarce. No studies have been reported in basophils and NK cells. TRPA1 in immune cells has been linked to arthritis (neutrophils), anaphylaxis and atopic dermatitis (mast cells), atherosclerosis, renal injury, cardiac hypertrophy and inflammatory bowel disease (macrophages), and colitis (T cells). The contribution of TRPA1 to immunity is dual: as detector of cell stress, tissue injury, and exogenous noxious stimuli it leads to defensive responses, but in conditions of aberrant regulation it contributes to the exacerbation of inflammatory conditions. Future studies should aim at characterizing the functional properties of TRPA1 in immune cells, an essential step in understanding its roles in inflammation and its potential as therapeutic target.
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Affiliation(s)
- Robbe Naert
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, 3000 Leuven, Belgium; (R.N.); (A.L.-R.)
| | - Alejandro López-Requena
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, 3000 Leuven, Belgium; (R.N.); (A.L.-R.)
- Ablynx, Technologiepark 21, 9052 Zwijnaarde, Belgium
| | - Karel Talavera
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, 3000 Leuven, Belgium; (R.N.); (A.L.-R.)
- Correspondence: ; Tel.: +32-16-330469
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Chen C, Huang X, Zhu W, Ding C, Huang P, Li R. H2O2 gel bleaching induces cytotoxicity and pain conduction in dental pulp stem cells via intracellular reactive oxygen species on enamel/dentin disc. PLoS One 2021; 16:e0257221. [PMID: 34506603 PMCID: PMC8432789 DOI: 10.1371/journal.pone.0257221] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/25/2021] [Indexed: 01/26/2023] Open
Abstract
Background Bleaching is widely accepted for improving the appearance of discolored teeth; however, patient compliance is affected by bleaching-related complications, especially bleaching sensitivity. This study aimed to investigate the role of reactive oxygen species (ROS) in cytotoxicity and pain conduction activated by experimental tooth bleaching. Methods Dental pulp stem cells with or without N-acetyl-L-cysteine (NAC), an ROS scavenger, were cultured on the dentin side of the enamel/dentin disc. Subsequently, 15% (90 min) and 40% (30 min) bleaching gels were painted on the enamel surface. Cell viability, intracellular ROS, Ca2+, adenosine triphosphate (ATP), and extracellular ATP levels were evaluated using the Cell Counting Kit-8 assay, 2’,7’-dichlorodihydrofluorescein diacetate, CellROX, fura-3AM fluorescence assay, and ATP measurement kit. The rat incisor model was used to evaluate in vivo effects after 0, 1, 3, 7, and 30 days of bleaching. Changes in gene and protein expression of interleukin 6 (IL-6), tumor necrosis factor-alpha (TNFα), transient receptor potential ankyrin 1 (TRPA1), and Pannexin1 (PANX1) in dental pulp stem cells and pulp tissue were detected through RT-PCR, western blotting, and immunofluorescence. Results The bleaching gel suppressed dental pulp stem cell viability and extracellular ATP levels and increased intracellular ROS, Ca2+, and intracellular ATP levels. The mRNA and protein expression of IL-6, TNFα, TRPA1, and PANX1 were up-regulated in vitro and in vivo. Furthermore, the 40% gel had a stronger effect than the 15% gel, and NAC ameliorated the gel effects. Conclusions Our findings suggest that bleaching gels induce cytotoxicity and pain conduction in dental pulp stem cells via intracellular ROS, which may provide a potential therapeutic target for alleviating tooth bleaching nociception.
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Affiliation(s)
- Chang Chen
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiansheng Huang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenqiang Zhu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chen Ding
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Piaopiao Huang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Rong Li
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- * E-mail:
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FAM19A5l Affects Mustard Oil-Induced Peripheral Nociception in Zebrafish. Mol Neurobiol 2021; 58:4770-4785. [PMID: 34176096 DOI: 10.1007/s12035-021-02449-z] [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: 03/22/2021] [Accepted: 06/10/2021] [Indexed: 10/21/2022]
Abstract
Family with sequence similarity 19 (chemokine (C-C motif)-like) member A5 (FAM19A5) is a chemokine-like secretory protein recently identified as involved in the regulation of osteoclast formation, post-injury neointima formation, and depression. Although roles for FAM19A5 have been described in nervous system development and psychiatric disorders, its role in the nervous system remains poorly understood. Here, we analyzed the evolutionary history of FAM19A genes in vertebrates and identified FAM19A5l, a paralogous zebrafish gene originating from a common ancestral FAM19A5 gene. Further, zebrafish FAM19A5l is expressed in trigeminal and dorsal root ganglion neurons as well as distinct neuronal subsets of the central nervous system. Interestingly, FAM19A5l+ trigeminal neurons are nociceptive neurons that localized with TRPA1b and TRPV1 and respond to mustard oil treatment. Behavioral analysis further revealed that the nociceptive response to mustard oil decreases in FAM19A5l-knockout zebrafish larvae. In addition, TRPA1b and NGFa mRNA levels are down- and upregulated in FAM19A5l-knockout and -overexpressing transgenic zebrafish, respectively. Together, our data suggest that FAM19A5l plays a role in nociceptive responses to mustard oil by regulating TRPA1b and NGFa expression in zebrafish.
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Sinica V, Vlachová V. Transient receptor potential ankyrin 1 channel: An evolutionarily tuned thermosensor. Physiol Res 2021; 70:363-381. [PMID: 33982589 DOI: 10.33549/physiolres.934697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The discovery of the role of the transient receptor potential ankyrin 1 (TRPA1) channel as a polymodal detector of cold and pain-producing stimuli almost two decades ago catalyzed the consequent identification of various vertebrate and invertebrate orthologues. In different species, the role of TRPA1 has been implicated in numerous physiological functions, indicating that the molecular structure of the channel exhibits evolutionary flexibility. Until very recently, information about the critical elements of the temperature-sensing molecular machinery of thermosensitive ion channels such as TRPA1 had lagged far behind information obtained from mutational and functional analysis. Current developments in single-particle cryo-electron microscopy are revealing precisely how the thermosensitive channels operate, how they might be targeted with drugs, and at which sites they can be critically regulated by membrane lipids. This means that it is now possible to resolve a huge number of very important pharmacological, biophysical and physiological questions in a way we have never had before. In this review, we aim at providing some of the recent knowledge on the molecular mechanisms underlying the temperature sensitivity of TRPA1. We also demonstrate how the search for differences in temperature and chemical sensitivity between human and mouse TRPA1 orthologues can be a useful approach to identifying important domains with a key role in channel activation.
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Affiliation(s)
- V Sinica
- Laboratory of Cellular Neurophysiology, Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic. or
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Martínez-Rojas VA, Salinas-Abarca AB, Gómez-Víquez NL, Granados-Soto V, Mercado F, Murbartián J. Interaction of NHE1 and TRPA1 Activity in DRG Neurons Isolated from Adult Rats and its Role in Inflammatory Nociception. Neuroscience 2021; 465:154-165. [PMID: 33957206 DOI: 10.1016/j.neuroscience.2021.04.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/01/2021] [Accepted: 04/21/2021] [Indexed: 01/07/2023]
Abstract
Transient receptor potential ankyrin 1 (TRPA1) channel is expressed in a subset of nociceptive neurons. This channel integrates several nociceptive signals. Particularly, it is modulated by intracellular pH (pHi). Na+/H+ exchanger 1 (NHE1) contributes to the maintenance of pHi in nociceptors. However, it is currently unknown whether the interaction between TRPA1 and NHE1 contributes to the nociceptive processing. Thus, the purpose of this study was to assess the functional interaction between NHE1 and TRPA1 in small dorsal root ganglion (DRG) neurons from primary culture obtained from adult rats. Moreover, we also evaluated their possible interaction in acute and inflammatory pain. Zoniporide (selective NHE1 inhibitor) reduced pHi and increased intracellular calcium in a concentration-dependent fashion in DRG neurons. Zoniporide and allyl isothiocyanate (AITC, TRPA1 agonist) increased calcium transients in the same DRG neuron, whereas that A-967079 (TRPA1 antagonist) prevented the effect of zoniporide in DRG neurons. Repeated AITC induced TRPA1 desensitization and this effect was prevented by zoniporide. Both NHE1 and TRPA1 were localized at the membrane surface of DRG neurons in culture. Local peripheral zoniporide enhanced AITC-induced pronociception and this effect was prevented by A-967079. Likewise, zoniporide potentiated Complete Freund's Adjuvant (CFA)-induced hypersensitivity, effect which was prevented by A-967079 in vivo. CFA paw injection increased TRPA1 and decresed NHE1 protein expression in DRG. These results suggest a functional interaction between NHE1 and TRPA1 in DRG neurons in vitro. Moreover, data suggest that this interaction participates in acute and inflamatory pain conditions in vivo.
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Affiliation(s)
| | - Ana B Salinas-Abarca
- Neurobiology of Pain Laboratory, Departamento de Farmacobiología, Cinvestav, South Campus, Mexico City, Mexico
| | | | - Vinicio Granados-Soto
- Neurobiology of Pain Laboratory, Departamento de Farmacobiología, Cinvestav, South Campus, Mexico City, Mexico
| | - Francisco Mercado
- Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Janet Murbartián
- Departamento de Farmacobiología, Cinvestav, South Campus, Mexico City, Mexico.
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44
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Chiu CJ, Huang MT. Asthma in the Precision Medicine Era: Biologics and Probiotics. Int J Mol Sci 2021; 22:4528. [PMID: 33926084 PMCID: PMC8123613 DOI: 10.3390/ijms22094528] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 02/07/2023] Open
Abstract
Asthma is a major global health issue. Over 300 million people worldwide suffer from this chronic inflammatory airway disease. Typical clinical symptoms of asthma are characterized by a recurrent wheezy cough, chest tightness, and shortness of breath. The main goals of asthma management are to alleviate asthma symptoms, reduce the risk of asthma exacerbations, and minimize long-term medicinal adverse effects. However, currently available type 2 T helper cells (Th2)-directed treatments are often ineffective due to the heterogeneity of the asthma subgroups, which manifests clinically with variable and poor treatment responses. Personalized precision therapy of asthma according to individualized clinical characteristics (phenotype) and laboratory biomarkers (endotype) is the future prospect. This mini review discusses the molecular mechanisms underlying asthma pathogenesis, including the hot sought-after topic of microbiota, add-on therapies and the potential application of probiotics in the management of asthma.
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Affiliation(s)
- Chiao-Juno Chiu
- Graduate Institute of Clinical Medicine, School of Medicine, National Taiwan University, Taipei 100, Taiwan;
| | - Miao-Tzu Huang
- Graduate Institute of Clinical Medicine, School of Medicine, National Taiwan University, Taipei 100, Taiwan;
- Department of Medical Research, National Taiwan University Hospital, No. 7 Chung-Shan South Road, Taipei 100, Taiwan
- Department of Pediatrics, National Taiwan University Hospital, No. 7 Chung-Shan South Road, Taipei 100, Taiwan
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45
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Xu BY, Jin Y, Ma XH, Wang CY, Guo Y, Zhou D. The potential role of mechanically sensitive ion channels in the physiology, injury, and repair of articular cartilage. J Orthop Surg (Hong Kong) 2021; 28:2309499020950262. [PMID: 32840428 DOI: 10.1177/2309499020950262] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Biomechanical factors play an extremely important role in regulating the function of articular chondrocytes. Understanding the mechanical factors that drive chondrocyte biological responses is at the heart of our interpretation of cascade events leading to changes in articular cartilage osteoarthritis. The mechanism by which mechanical load is transduced into intracellular signals that can regulate chondrocyte gene expression remains largely unknown. The mechanically sensitive ion channel (MSC) may be one of its specific mechanisms. This review focuses on four ion channels involved in the mechanotransduction of chondrocytes, exploring their properties and the main factors that activate the associated pathways. The upstream and downstream potential relationships between the protein pathways were also explored. The specific biophysical mechanism of the chondrocyte mechanical microenvironment is becoming the focus of research. Elucidating the mechanotransduction mechanism of MSC is essential for the research of biophysical pathogenesis and targeted drugs in cartilage injury-related diseases.
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Affiliation(s)
- Bo-Yang Xu
- School of Acupuncture-Moxibustion and Tuina, 58301Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
| | - Yu Jin
- School of Chinese Medicine, 58301Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
| | - Xiao-Hui Ma
- School of Culture and Health Communication, 58301Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
| | - Chi-Yu Wang
- Department of Electrical Engineering and Computer Sciences, 1438University of California, Berkeley, CA, USA
| | - Yi Guo
- School of Chinese Medicine, 58301Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China.,Research Center of Experimental Acupuncture Science, 58301Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, People's Republic of China
| | - Dan Zhou
- School of Acupuncture-Moxibustion and Tuina, 58301Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China.,Research Center of Experimental Acupuncture Science, 58301Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, People's Republic of China
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46
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Wu CK, Lin JF, Lee TS, Kou YR, Tarng DC. Role of TRPA1 in Tissue Damage and Kidney Disease. Int J Mol Sci 2021; 22:3415. [PMID: 33810314 PMCID: PMC8036557 DOI: 10.3390/ijms22073415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/20/2021] [Accepted: 03/23/2021] [Indexed: 12/11/2022] Open
Abstract
TRPA1, a nonselective cation channel, is expressed in sensory afferent that innervates peripheral targets. Neuronal TRPA1 can promote tissue repair, remove harmful stimuli and induce protective responses via the release of neuropeptides after the activation of the channel by chemical, exogenous, or endogenous irritants in the injured tissue. However, chronic inflammation after repeated noxious stimuli may result in the development of several diseases. In addition to sensory neurons, TRPA1, activated by inflammatory agents from some non-neuronal cells in the injured area or disease, might promote or protect disease progression. Therefore, TRPA1 works as a molecular sentinel of tissue damage or as an inflammation gatekeeper. Most kidney damage cases are associated with inflammation. In this review, we summarised the role of TRPA1 in neurogenic or non-neurogenic inflammation and in kidney disease, especially the non-neuronal TRPA1. In in vivo animal studies, TRPA1 prevented sepsis-induced or Ang-II-induced and ischemia-reperfusion renal injury by maintaining mitochondrial haemostasis or via the downregulation of macrophage-mediated inflammation, respectively. Renal tubular epithelial TRPA1 acts as an oxidative stress sensor to mediate hypoxia-reoxygenation injury in vitro and ischaemia-reperfusion-induced kidney injury in vivo through MAPKs/NF-kB signalling. Acute kidney injury (AKI) patients with high renal tubular TRPA1 expression had low complete renal function recovery. In renal disease, TPRA1 plays different roles in different cell types accordingly. These findings depict the important role of TRPA1 and warrant further investigation.
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Affiliation(s)
- Chung-Kuan Wu
- Division of Nephrology, Department of Internal Medicine, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan;
- School of Medicine, College of Medicine, Fu-Jen Catholic University, New Taipei 242, Taiwan
| | - Ji-Fan Lin
- Precision Medicine Center, Department of Research, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan;
| | - Tzong-Shyuan Lee
- Department of Physiology, College of Medicine, National Taiwan University, Taipei 100, Taiwan;
| | - Yu Ru Kou
- Department of Institue of Physiology, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan;
| | - Der-Cherng Tarng
- Department of Institue of Physiology, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan;
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 300, Taiwan
- Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), Hsinchu 300, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 112, Taiwan
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 112, Taiwan
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47
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Startek JB, Milici A, Naert R, Segal A, Alpizar YA, Voets T, Talavera K. The Agonist Action of Alkylphenols on TRPA1 Relates to Their Effects on Membrane Lipid Order: Implications for TRPA1-Mediated Chemosensation. Int J Mol Sci 2021; 22:ijms22073368. [PMID: 33806007 PMCID: PMC8037438 DOI: 10.3390/ijms22073368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 12/13/2022] Open
Abstract
The Transient Receptor Potential Ankyrin 1 cation channel (TRPA1) is a broadly-tuned chemosensor expressed in nociceptive neurons. Multiple TRPA1 agonists are chemically unrelated non-electrophilic compounds, for which the mechanisms of channel activation remain unknown. Here, we assess the hypothesis that such chemicals activate TRPA1 by inducing mechanical perturbations in the plasma membrane. We characterized the activation of mouse TRPA1 by non-electrophilic alkylphenols (APs) of different carbon chain lengths in the para position of the aromatic ring. Having discarded oxidative stress and the action of electrophilic mediators as activation mechanisms, we determined whether APs induce mechanical perturbations in the plasma membrane using dyes whose fluorescence properties change upon alteration of the lipid environment. APs activated TRPA1, with potency increasing with their lipophilicity. APs increased the generalized polarization of Laurdan fluorescence and the anisotropy of the fluorescence of 1,6-diphenyl-1,3,5-hexatriene (DPH), also according to their lipophilicity. Thus, the potency of APs for TRPA1 activation is an increasing function of their ability to induce lipid order and membrane rigidity. These results support the hypothesis that TRPA1 senses non-electrophilic compounds by detecting the mechanical alterations they produce in the plasma membrane. This may explain how structurally unrelated non-reactive compounds induce TRPA1 activation and support the role of TRPA1 as an unspecific sensor of potentially noxious compounds.
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Affiliation(s)
- Justyna B. Startek
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium; (J.B.S.); (A.M.); (R.N.); (A.S.); (Y.A.A.); (T.V.)
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium
| | - Alina Milici
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium; (J.B.S.); (A.M.); (R.N.); (A.S.); (Y.A.A.); (T.V.)
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium
| | - Robbe Naert
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium; (J.B.S.); (A.M.); (R.N.); (A.S.); (Y.A.A.); (T.V.)
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium
| | - Andrei Segal
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium; (J.B.S.); (A.M.); (R.N.); (A.S.); (Y.A.A.); (T.V.)
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium
| | - Yeranddy A. Alpizar
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium; (J.B.S.); (A.M.); (R.N.); (A.S.); (Y.A.A.); (T.V.)
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium; (J.B.S.); (A.M.); (R.N.); (A.S.); (Y.A.A.); (T.V.)
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium
| | - Karel Talavera
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium; (J.B.S.); (A.M.); (R.N.); (A.S.); (Y.A.A.); (T.V.)
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium
- Correspondence: ; Tel.: +32-16-330469
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Backaert W, Steelant B, Hellings PW, Talavera K, Van Gerven L. A TRiP Through the Roles of Transient Receptor Potential Cation Channels in Type 2 Upper Airway Inflammation. Curr Allergy Asthma Rep 2021; 21:20. [PMID: 33738577 PMCID: PMC7973410 DOI: 10.1007/s11882-020-00981-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Despite their high prevalence, the pathophysiology of allergic rhinitis (AR) and chronic rhinosinusitis (CRS) remains unclear. Recently, transient receptor potential (TRP) cation channels emerged as important players in type 2 upper airway inflammatory disorders. In this review, we aim to discuss known and yet to be explored roles of TRP channels in the pathophysiology of AR and CRS with nasal polyps. RECENT FINDINGS TRP channels participate in a plethora of cellular functions and are expressed on T cells, mast cells, respiratory epithelial cells, and sensory neurons of the upper airways. In chronic upper airway inflammation, TRP vanilloid 1 is mostly studied in relation to nasal hyperreactivity. Several other TRP channels such as TRP vanilloid 4, TRP ankyrin 1, TRP melastatin channels, and TRP canonical channels also have important functions, rendering them potential targets for therapy. The role of TRP channels in type 2 inflammatory upper airway diseases is steadily being uncovered and increasingly recognized. Modulation of TRP channels may offer therapeutic perspectives.
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Affiliation(s)
- Wout Backaert
- Department of Otorhinolaryngology, University Hospitals Leuven, Herestraat 49, B-3000, Leuven, Belgium
- Department of Microbiology, Immunology and transplantation, Allergy and Clinical Immunology Research Unit, KU Leuven, Leuven, Belgium
| | - Brecht Steelant
- Department of Microbiology, Immunology and transplantation, Allergy and Clinical Immunology Research Unit, KU Leuven, Leuven, Belgium
| | - Peter W Hellings
- Department of Otorhinolaryngology, University Hospitals Leuven, Herestraat 49, B-3000, Leuven, Belgium
- Department of Microbiology, Immunology and transplantation, Allergy and Clinical Immunology Research Unit, KU Leuven, Leuven, Belgium
- Department of Otorhinolaryngology, Academic Medical Center, Amsterdam, The Netherlands
- Department of Otorhinolaryngology, Laboratory of Upper Airways Research, University of Ghent, Ghent, Belgium
| | - Karel Talavera
- Department of Cellular and Molecular Medicine, Laboratory of Ion Channel Research, KU Leuven, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium
| | - Laura Van Gerven
- Department of Otorhinolaryngology, University Hospitals Leuven, Herestraat 49, B-3000, Leuven, Belgium.
- Department of Microbiology, Immunology and transplantation, Allergy and Clinical Immunology Research Unit, KU Leuven, Leuven, Belgium.
- Department of Neurosciences, Experimental Otorhinolaryngology, KU Leuven, Leuven, Belgium.
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49
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Milici A, Talavera K. TRP Channels as Cellular Targets of Particulate Matter. Int J Mol Sci 2021; 22:2783. [PMID: 33803491 PMCID: PMC7967245 DOI: 10.3390/ijms22052783] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 02/07/2023] Open
Abstract
Particulate matter (PM) is constituted by particles with sizes in the nanometer to micrometer scales. PM can be generated from natural sources such as sandstorms and wildfires, and from human activities, including combustion of fuels, manufacturing and construction or specially engineered for applications in biotechnology, food industry, cosmetics, electronics, etc. Due to their small size PM can penetrate biological tissues, interact with cellular components and induce noxious effects such as disruptions of the cytoskeleton and membranes and the generation of reactive oxygen species. Here, we provide an overview on the actions of PM on transient receptor potential (TRP) proteins, a superfamily of cation-permeable channels with crucial roles in cell signaling. Their expression in epithelial cells and sensory innervation and their high sensitivity to chemical, thermal and mechanical stimuli makes TRP channels prime targets in the major entry routes of noxious PM, which may result in respiratory, metabolic and cardiovascular disorders. On the other hand, the interactions between TRP channel and engineered nanoparticles may be used for targeted drug delivery. We emphasize in that much further research is required to fully characterize the mechanisms underlying PM-TRP channel interactions and their relevance for PM toxicology and biomedical applications.
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Affiliation(s)
| | - Karel Talavera
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, 3000 Leuven, Belgium;
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50
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Renal Tubular Epithelial TRPA1 Acts as An Oxidative Stress Sensor to Mediate Ischemia-Reperfusion-Induced Kidney Injury through MAPKs/NF-κB Signaling. Int J Mol Sci 2021; 22:ijms22052309. [PMID: 33669091 PMCID: PMC7956664 DOI: 10.3390/ijms22052309] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/19/2021] [Accepted: 02/23/2021] [Indexed: 12/19/2022] Open
Abstract
Oxidative stress and inflammation play important roles in the pathophysiology of acute kidney injury (AKI). Transient receptor potential ankyrin 1 (TRPA1) is a Ca2+-permeable ion channel that is sensitive to reactive oxygen species (ROS). The role of TRPA1 in AKI remains unclear. In this study, we used human and animal studies to assess the role of renal TRPA1 in AKI and to explore the regulatory mechanism of renal TRPA1 in inflammation via in vitro experiments. TRPA1 expression increased in the renal tubular epithelia of patients with AKI. The severity of tubular injury correlated well with tubular TRPA1 or 8-hydroxy-2'-deoxyguanosine expression. In an animal model, renal ischemia-reperfusion injury (IR) increased tubular TRPA1 expression in wild-type (WT) mice. Trpa1-/- mice displayed less IR-induced tubular injury, oxidative stress, inflammation, and dysfunction in kidneys compared with WT mice. In the in vitro model, TRPA1 expression increased in renal tubular cells under hypoxia-reoxygenation injury (H/R) conditions. We demonstrated that H/R evoked a ROS-dependent TRPA1 activation, which elevated intracellular Ca2+ level, increased NADPH oxidase activity, activated MAPK/NF-κB signaling, and increased IL-8. Renal tubular TRPA1 may serve as an oxidative stress sensor and a crucial regulator in the activation of signaling pathways and promote the subsequent transcriptional regulation of IL-8. These actions might be evident in mice with IR or patients with AKI.
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