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de Melo IB, Oliveira-Paula GH, Ferezin LP, Ferreira GC, Pinheiro LC, Tanus-Santos JE, Garcia LV, Lacchini R, Paula-Garcia WN. TRPA1 Polymorphisms Modify the Hypotensive Responses to Propofol with No Change in Nitrite or Nitrate Levels. Curr Issues Mol Biol 2022; 44:6333-6345. [PMID: 36547093 PMCID: PMC9777046 DOI: 10.3390/cimb44120432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022] Open
Abstract
Anesthesia with propofol is frequently associated with hypotension. The TRPA1 gene contributes to the vasodilator effect of propofol. Hypotension is crucial for anesthesiologists because it is deleterious in the perioperative period. We tested whether the TRPA1 gene polymorphisms or haplotypes interfere with the hypotensive responses to propofol. PCR-determined genotypes and haplotype frequencies were estimated. Nitrite, nitrates, and NOx levels were measured. Propofol induced a more expressive lowering of the blood pressure (BP) without changing nitrite or nitrate levels in patients carrying CG+GG genotypes for the rs16937976 TRPA1 polymorphism and AG+AA genotypes for the rs13218757 TRPA1 polymorphism. The CGA haplotype presented the most remarkable drop in BP. Heart rate values were not impacted. The present exploratory analysis suggests that TRPA1 genotypes and haplotypes influence the hypotensive responses to propofol. The mechanisms involved are probably other than those related to NO bioavailability. With better genetic knowledge, planning anesthesia with fewer side effects may be possible.
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Affiliation(s)
- Isabela Borges de Melo
- Department of Orthopedics and Anesthesiology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Gustavo H. Oliveira-Paula
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Letícia Perticarrara Ferezin
- Department of Psychiatric Nursing and Human Sciences, Ribeirao Preto College of Nursing, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Graziele C. Ferreira
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Lucas C. Pinheiro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Jose E. Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Luis V. Garcia
- Department of Orthopedics and Anesthesiology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Riccardo Lacchini
- Department of Psychiatric Nursing and Human Sciences, Ribeirao Preto College of Nursing, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
| | - Waynice N. Paula-Garcia
- Department of Orthopedics and Anesthesiology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14048900, SP, Brazil
- Correspondence: ; Tel.: +55-16-3602-2814
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Arginase II polymorphisms modify the hypotensive responses to propofol by affecting nitric oxide bioavailability. Eur J Clin Pharmacol 2021; 77:869-877. [PMID: 33410970 DOI: 10.1007/s00228-020-03059-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/26/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE Propofol anesthesia is usually accompanied by hypotensive responses, which are at least in part mediated by nitric oxide (NO). Arginase I (ARG1) and arginase II (ARG2) compete with NO synthases for their common substrate L-arginine, therefore influencing the NO formation. We examined here whether ARG1 and ARG2 genotypes and haplotypes affect the changes in blood pressure and NO bioavailability in response to propofol. METHODS Venous blood samples were collected from 167 patients at baseline and after 10 min of anesthesia with propofol. Genotypes were determined by polymerase chain reaction. Nitrite concentrations were measured by using an ozone-based chemiluminescence assay, while NOx (nitrites + nitrates) levels were determined by using the Griess reaction. RESULTS We found that patients carrying the AG + GG genotypes for the rs3742879 polymorphism in ARG2 gene and the ARG2 GC haplotype show lower increases in nitrite levels and lower decreases in blood pressure after propofol anesthesia. On the other hand, subjects carrying the variant genotypes for the rs10483801 polymorphism in ARG2 gene show more intense decreases in blood pressure (CA genotype) and/or higher increases in nitrite levels (CA and AA genotypes) in response to propofol. CONCLUSION Our results suggest that ARG2 variants affect the hypotensive responses to propofol, possibly by modifying NO bioavailability. TRIAL REGISTRATION NCT02442232.
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Gao S, Kaudimba KK, Guo S, Zhang S, Liu T, Chen P, Wang R. Transient Receptor Potential Ankyrin Type-1 Channels as a Potential Target for the Treatment of Cardiovascular Diseases. Front Physiol 2020; 11:836. [PMID: 32903613 PMCID: PMC7438729 DOI: 10.3389/fphys.2020.00836] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022] Open
Abstract
Cardiovascular disease is one of the chronic conditions with the highest mortality rate in the world. Underlying conditions such as hypertension, metabolic disorders, and habits like smoking are contributors to the manifestation of cardiovascular diseases. The treatment of cardiovascular diseases is inseparable from the development of drugs. Consequently, this has led to many researchers to focus on the search for effective drug targets. The transient receptor potential channel Ankyrin 1 (TRPA1) subtype is a non-selective cation channel, which belongs to the transient receptor potential (TRP) ion channel. Previous studies have shown that members of the TRP family contribute significantly to cardiovascular disease. However, many researchers have not explored the role of TRPA1 as a potential target for the treatment of cardiovascular diseases. Furthermore, recent studies revealed that TRPA1 is commonly expressed in the vascular endothelium. The endothelium is linked to the causes of some cardiovascular diseases, such as atherosclerosis, myocardial fibrosis, heart failure, and arrhythmia. The activation of TRPA1 has a positive effect on atherosclerosis, but it has a negative effect on other cardiovascular diseases such as myocardial fibrosis and heart failure. This review introduces the structural and functional characteristics of TRPA1 and its importance on vascular physiology and common cardiovascular diseases. Moreover, this review summarizes some evidence that TRPA1 is correlated to cardiovascular disease risk factors.
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Affiliation(s)
- Song Gao
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | | | - Shanshan Guo
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Shuang Zhang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China.,Institute of Sport Science, Harbin Sport University, Harbin, China
| | - Tiemin Liu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China.,State Key Laboratory of Genetic Engineering, Institute of Metabolism and Integrative Biology, Human Phenome Institute, Department of Endocrinology and Metabolism, and School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peijie Chen
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Ru Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
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Lynch J, Jin L, Richardson A, Jagatheesan G, Lorkiewicz P, Xie Z, Theis WS, Shirk G, Malovichko MV, Bhatnagar A, Srivastava S, Conklin DJ. Acute and chronic vascular effects of inhaled crotonaldehyde in mice: Role of TRPA1. Toxicol Appl Pharmacol 2020; 402:115120. [PMID: 32634517 DOI: 10.1016/j.taap.2020.115120] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 12/13/2022]
Abstract
Although crotonaldehyde (CR) is an abundant α,β-unsaturated aldehyde in mainstream cigarette smoke (MCS), the cardiovascular toxicity of inhaled CR is largely unexplored. Thus, male C57BL/6 J mice were exposed acutely (1 h, 6 h, and 4d) and chronically (12 weeks) to CR (at levels relevant to MCS; 1 and 3 ppm), and cardiovascular and systemic outcomes were measured in vivo and in vitro. Diastolic blood pressure was decreased (hypotension) by both acute and chronic CR exposure. Vascular toxicity of inhaled CR was quantified in isolated aorta in response to agonists of contraction (phenylephrine, PE) and relaxation (acetylcholine, ACh; sodium nitroprusside, SNP). Although no change in contractility was observed, ACh-induced relaxations were augmented after both acute and chronic CR exposures whereas SNP-induced relaxation was enhanced only following 3 ppm CR exposure. Because CR is a known agonist of the transient receptor potential ankyrin 1 (TRPA1) channel, male TRPA1-null mice were exposed to air or CR (4d, 1 ppm) and aortic function assessed in vitro. CR exposure had no effect on TRPA1-null aortic function indicating a role of TRPA1 in CR effects in C57BL/6 J mice. Notably, CR exposure (4d, 1 ppm) had no effect on aortic function in female C57BL/6 J mice. This study shows that CR inhalation exposure induces real-time and persistent vascular changes that promote hypotension-a known risk factor for stroke. Because of continued widespread exposures of humans to combustion-derived CR (environmental and tobacco products), CR may be an important cardiovascular disease risk factor.
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Affiliation(s)
- Jordan Lynch
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, United States of America; Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America; Superfund Research Center, University of Louisville, United States of America.
| | - Lexiao Jin
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, United States of America; Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America.
| | - Andre Richardson
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, United States of America; Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America.
| | - Ganapathy Jagatheesan
- Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America.
| | - Pawel Lorkiewicz
- Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America; Superfund Research Center, University of Louisville, United States of America; Department of Chemistry, University of Louisville, United States of America.
| | - Zhengzhi Xie
- Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America; Superfund Research Center, University of Louisville, United States of America.
| | - Whitney S Theis
- Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America.
| | - Gregg Shirk
- Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America.
| | - Marina V Malovichko
- Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America; Superfund Research Center, University of Louisville, United States of America; Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, KY 40202, United States of America.
| | - Aruni Bhatnagar
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, United States of America; Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America; Superfund Research Center, University of Louisville, United States of America; Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, KY 40202, United States of America.
| | - Sanjay Srivastava
- Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America; Superfund Research Center, University of Louisville, United States of America; Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, KY 40202, United States of America.
| | - Daniel J Conklin
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, United States of America; Christina Lee Brown Envirome Institute, University of Louisville, United States of America; Diabetes & Obesity Center, University of Louisville, United States of America; Superfund Research Center, University of Louisville, United States of America; Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, KY 40202, United States of America.
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5
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Ton HT, Phan TX, Ahern GP. Inhibition of Ligand-Gated TRPA1 by General Anesthetics. Mol Pharmacol 2020; 98:185-191. [PMID: 32580996 DOI: 10.1124/mol.119.118851] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 05/27/2020] [Indexed: 11/22/2022] Open
Abstract
Several general anesthetics (GAs) produce pain or irritation upon administration, and this occurs predominantly through the activation of the nociceptive ion channel, transient receptor potential ankyrin type 1 (TRPA1). However, the effects of GAs on agonist-mediated TRPA1 activity are unclear. Here we show that a diverse range of noxious and non-noxious volatile anesthetics, at clinically relevant concentrations, inhibit ligand-activated TRPA1 currents. These effects are species-specific; GAs blocks rodent TRPA1 without affecting the Drosophila ortholog. Furthermore, propofol inhibits rodent but not human TRPA1. Analysis of chimeric TRPA1 proteins and mutagenesis combined reveals two amino acid residues located in the S5 domain, Ser876 and Thr877, that are critical for the inhibitory effects of isoflurane and propofol. Introduction of these residues into Drosophila TRPA1 confers anesthetic inhibition. Furthermore, several residues lining the presumptive binding pocket for noxious GAs are not required for the inhibitory effects of GAs. We conclude that anesthetics inhibit TRPA1 by interacting at a site distinct from the activation site. The inhibitory effects of GAs at TRPA1 may contribute to the diverse pharmacological action of these drugs. SIGNIFICANCE STATEMENT: We show that both noxious and non-noxious general anesthetics inhibit agonist-evoked transient receptor potential ankyrin type 1 (TRPA1) activity and identify critical amino acid residues located in the pore domain. Inhibition of TRPA1 may affect pain and vascular signaling during anesthesia.
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Affiliation(s)
- Hoai T Ton
- Department of Pharmacology and Physiology, Georgetown University, Washington DC (H.T.T., T.X.P., G.P.A.) and Department of Biology, Vinh University, Vinh city, Nghe An, Vietnam (H.T.T., T.X.P.)
| | - Thieu X Phan
- Department of Pharmacology and Physiology, Georgetown University, Washington DC (H.T.T., T.X.P., G.P.A.) and Department of Biology, Vinh University, Vinh city, Nghe An, Vietnam (H.T.T., T.X.P.)
| | - Gerard P Ahern
- Department of Pharmacology and Physiology, Georgetown University, Washington DC (H.T.T., T.X.P., G.P.A.) and Department of Biology, Vinh University, Vinh city, Nghe An, Vietnam (H.T.T., T.X.P.)
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6
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Yim PD, Gallos G, Lee-Kong SA, Dan W, Wu AD, Xu D, Berkowitz DE, Emala CW. Novel Expression of GABAA Receptors on Resistance Arteries That Modulate Myogenic Tone. J Vasc Res 2020; 57:113-125. [PMID: 32097943 DOI: 10.1159/000505456] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/16/2019] [Indexed: 01/17/2023] Open
Abstract
The clinical administration of GABAergic medications leads to hypotension which has classically been attributed to the modulation of neuronal activity in the central and peripheral nervous systems. However, certain types of peripheral smooth muscle cells have been shown to express GABAA receptors, which modulate smooth muscle tone, by the activation of these chloride channels on smooth muscle cell plasma membranes. Limited prior studies demonstrate that non-human large-caliber capacitance blood vessels mounted on a wire myograph are responsive to GABAA ligands. We questioned whether GABAA receptors are expressed in human resistance arteries and whether they modulate myogenic tone. We demonstrate the novel expression of GABAA subunits on vascular smooth muscle from small-caliber human omental and mouse tail resistance arteries. We show that GABAA receptors modulate both plasma membrane potential and calcium responses in primary cultured cells from human resistance arteries. Lastly, we demonstrate functional physiologic modulation of myogenic tone via GABAA receptor activation in human and mouse arteries. Together, these studies demonstrate a previously unrecognized role for GABAA receptors in the modulation of myogenic tone in mouse and human resistance arteries.
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Affiliation(s)
- Peter D Yim
- Department of Anesthesiology, Columbia University, New York, New York, USA,
| | - George Gallos
- Department of Anesthesiology, Columbia University, New York, New York, USA
| | | | - William Dan
- Department of Anesthesiology, Columbia University, New York, New York, USA
| | - Amy D Wu
- Department of Anesthesiology, Columbia University, New York, New York, USA
| | - Dingbang Xu
- Department of Anesthesiology, Columbia University, New York, New York, USA
| | - Dan E Berkowitz
- Department of Anesthesiology and Perioperative Medicine, University of Alabama, Birmingham, Alabama, USA
| | - Charles W Emala
- Department of Anesthesiology, Columbia University, New York, New York, USA
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7
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Talavera K, Startek JB, Alvarez-Collazo J, Boonen B, Alpizar YA, Sanchez A, Naert R, Nilius B. Mammalian Transient Receptor Potential TRPA1 Channels: From Structure to Disease. Physiol Rev 2019; 100:725-803. [PMID: 31670612 DOI: 10.1152/physrev.00005.2019] [Citation(s) in RCA: 218] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The transient receptor potential ankyrin (TRPA) channels are Ca2+-permeable nonselective cation channels remarkably conserved through the animal kingdom. Mammals have only one member, TRPA1, which is widely expressed in sensory neurons and in non-neuronal cells (such as epithelial cells and hair cells). TRPA1 owes its name to the presence of 14 ankyrin repeats located in the NH2 terminus of the channel, an unusual structural feature that may be relevant to its interactions with intracellular components. TRPA1 is primarily involved in the detection of an extremely wide variety of exogenous stimuli that may produce cellular damage. This includes a plethora of electrophilic compounds that interact with nucleophilic amino acid residues in the channel and many other chemically unrelated compounds whose only common feature seems to be their ability to partition in the plasma membrane. TRPA1 has been reported to be activated by cold, heat, and mechanical stimuli, and its function is modulated by multiple factors, including Ca2+, trace metals, pH, and reactive oxygen, nitrogen, and carbonyl species. TRPA1 is involved in acute and chronic pain as well as inflammation, plays key roles in the pathophysiology of nearly all organ systems, and is an attractive target for the treatment of related diseases. Here we review the current knowledge about the mammalian TRPA1 channel, linking its unique structure, widely tuned sensory properties, and complex regulation to its roles in multiple pathophysiological conditions.
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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 and Disease Research, Leuven, Belgium
| | - Justyna B Startek
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain and Disease Research, Leuven, Belgium
| | - Julio Alvarez-Collazo
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain and Disease Research, Leuven, Belgium
| | - Brett Boonen
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain and Disease Research, Leuven, Belgium
| | - Yeranddy A Alpizar
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain and Disease Research, Leuven, Belgium
| | - Alicia Sanchez
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain and Disease Research, Leuven, Belgium
| | - Robbe Naert
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain and Disease Research, Leuven, Belgium
| | - Bernd Nilius
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain and Disease Research, Leuven, Belgium
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8
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Alavi MS, Shamsizadeh A, Karimi G, Roohbakhsh A. Transient receptor potential ankyrin 1 (TRPA1)-mediated toxicity: friend or foe? Toxicol Mech Methods 2019; 30:1-18. [PMID: 31409172 DOI: 10.1080/15376516.2019.1652872] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Transient receptor potential (TRP) channels have been widely studied during the last decade. New studies uncover new features and potential applications for these channels. TRPA1 has a huge distribution all over the human body and has been reported to be involved in different physiological and pathological conditions including cold, pain, and damage sensation. Considering its role, many studies have been devoted to evaluating the role of this channel in the initiation and progression of different toxicities. Accordingly, we reviewed the most recent studies and divided the role of TRPA1 in toxicology into the following sections: neurotoxicity, cardiotoxicity, dermatotoxicity, and pulmonary toxicity. Acetaminophen, heavy metals, tear gases, various chemotherapeutic agents, acrolein, wood smoke particulate materials, particulate air pollution materials, diesel exhaust particles, cigarette smoke extracts, air born irritants, sulfur mustard, and plasticizers are selected compounds and materials with toxic effects that are, at least in part, mediated by TRPA1. Considering the high safety of TRPA1 antagonists and their efficacy to resolve selected toxic or adverse drug reactions, the future of these drugs looks promising.
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Affiliation(s)
- Mohaddeseh Sadat Alavi
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Shamsizadeh
- Physiology-Pharmacology Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Gholamreza Karimi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Roohbakhsh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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9
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Djuric M, Nikolic Turnic T, Kostic S, Radonjic K, Jeremic J, Petkovic A, Bradic J, Milosavljevic I, Srejovic I, Zivkovic V, Djuric D, Jakovljevic V, Stevanovic P. Inhibition of gasotransmitters production and calcium influx affect cardiodynamic variables and cardiac oxidative stress in propofol-anesthetized male Wistar rats. Can J Physiol Pharmacol 2019; 97:850-856. [DOI: 10.1139/cjpp-2018-0719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
It has been assumed that the cardioprotective effects of propofol are due to its non-anesthetic pleiotropic cardiac and vasodilator effects, in which gasotransmitters (NO, H2S, and CO) as well as calcium influx could be involved. The study on isolated rat heart was performed using 4 experimental groups (n = 7 in each): (1) bolus injection of propofol (100 mg/kg body mass, i.p.); (2) L-NAME (NO synthase inhibitor, 60 mg/kg body mass, i.p.) + propofol; (3) DL-PAG (H2S synthase inhibitor, 50 mg/kg body mass, i.p.) + propofol; (4) ZnPPIX (CO synthase inhibitor, 50 μmol/kg body mass, i.p.) + propofol. Before and after the verapamil (3 μmol/L) administration, cardiodynamic parameters were recorded (dp/dtmax, dp/dtmin, systolic left ventricular pressure, diastolic left ventricular pressure, heart rate, coronary flow), as well as coronary and cardiac oxidative stress parameters. The results showed significant increases of diastolic left ventricular pressure following NO and CO inhibition, but also increases of coronary flow following H2S and CO inhibition. Following verapamil administration, significant decreases of dp/dtmax were noted after NO and CO inhibition, then increase of diastolic left ventricular pressure following CO inhibition, and increase of coronary flow following NO, H2S, or CO inhibition. Oxidative stress markers were increased but catalase activity was significantly decreased in cardiac tissue. Gasotransmitters and calcium influx are involved in pleiotropic cardiovascular effects of propofol in male Wistar rats.
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Affiliation(s)
- M. Djuric
- Department of Anesthesiology, Reanimatology and Intensive Care Medicine, University Clinical Hospital Center “Dr. Dragisa Misovic - Dedinje”, Belgrade, Serbia
| | - T. Nikolic Turnic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - S. Kostic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - K. Radonjic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - J. Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - A. Petkovic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - J. Bradic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - I. Milosavljevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - I. Srejovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - V. Zivkovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - D. Djuric
- Institute of Medical Physiology “Richard Burian”, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - V. Jakovljevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Department of Human Pathology, 1st Moscow State Medical, University IM Sechenov, Moscow, Russian Federation
| | - P. Stevanovic
- Department of Anesthesiology, Reanimatology and Intensive Care Medicine, University Clinical Hospital Center “Dr. Dragisa Misovic - Dedinje”, Belgrade, Serbia
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10
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Zhu JJ, Xiang C, Wu SH, Jiang TT, Zhou JY, Li XQ, Wu XJ, Yan Y. Identification of molecular mechanism underlying therapeutic effect of tanshinone IIA in the treatment of hypoxic vestibular vertigo via the NO/cGMP/BKCa signaling pathway. Am J Transl Res 2019; 11:4203-4213. [PMID: 31396329 PMCID: PMC6684908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 06/19/2019] [Indexed: 06/10/2023]
Abstract
This study aimed to investigate the molecular mechanisms underlying the effect of Tashinone IIA (Tan) on the treatment of ischemic vertigo. Sprague-Dawley (SD) male rats were divided into a SHAM group, a MODEL group, a MODEL+PBS group, a MODEL+Tan (10 mg/kg) group, a MODEL+Tan (20 mg/kg) group, a MODEL+Tan (40 mg/kg) group and a MODEL+Tan (80 mg/kg) group. The escape latency was observed among different groups of rats, while the production of NO/cGMP and the expression of BKCa were measured in vivo and in vitro by H&E staining, Western Blot and IHC assays. While the rats with ischemic vertigo showed prolonged escape latency, the treatment by Tan (40 mg/kg and up) shortened the escape latency in rats with ischemic vertigo. Moreover, the reduced production of NO/cGMP and expression of BKCa protein in the MODEL group were increased by a certain extent upon the treatment of 40 mg/kg or 80 mg/kg Tan. H&E staining of MVN neuron cells collected from different rat groups also validated the positive effects of Tan on the repair of damaged MVN neuron cells. Moreover, the above results were also validated in vitro, as the cells treated with 5 ug/ml and 10 ug/ml Tan increased the levels of NO/cGMP production and BKCa protein expression. At a certain dose, Tan could increase the production of NO and cGMP as well as the expression of BKCa, which would subsequently aid the treatment of ischemic vertigo.
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Affiliation(s)
- Jing-Jing Zhu
- Department of Otolaryngology, Baoshan Branch, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese MedicineShanghai 201900, People’s Republic of China
| | - Chen Xiang
- Department of Thyroid Surgery, Baoshan Branch, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese MedicineShanghai 201900, People’s Republic of China
| | - Shu-Hui Wu
- Department of Otolaryngology, Baoshan Branch, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese MedicineShanghai 201900, People’s Republic of China
| | - Ting-Ting Jiang
- Department of Otolaryngology, Baoshan Branch, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese MedicineShanghai 201900, People’s Republic of China
| | - Jie-Yu Zhou
- Department of Otorhinolaryngology, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University, School of MedicineShanghai 201999, People’s Republic of China
| | - Xin-Qian Li
- Department of Otolaryngology, Baoshan Branch, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese MedicineShanghai 201900, People’s Republic of China
| | - Xue-Jun Wu
- Department of Otolaryngology, Baoshan Branch, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese MedicineShanghai 201900, People’s Republic of China
| | - Yong Yan
- Department of Otolaryngology, Baoshan Branch, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese MedicineShanghai 201900, People’s Republic of China
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11
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Conklin DJ, Guo Y, Nystoriak MA, Jagatheesan G, Obal D, Kilfoil PJ, Hoetker JD, Guo L, Bolli R, Bhatnagar A. TRPA1 channel contributes to myocardial ischemia-reperfusion injury. Am J Physiol Heart Circ Physiol 2019; 316:H889-H899. [PMID: 30735434 PMCID: PMC6483018 DOI: 10.1152/ajpheart.00106.2018] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 01/18/2019] [Accepted: 01/31/2019] [Indexed: 11/22/2022]
Abstract
Myocardial ischemia-reperfusion (I/R) results in the generation of free radicals, accumulation of lipid peroxidation-derived unsaturated aldehydes, variable angina (pain), and infarction. The transient receptor potential ankyrin 1 (TRPA1) mediates pain signaling and is activated by unsaturated aldehydes, including acrolein and 4-hydroxynonenal. The contribution of TRPA1 (a Ca2+-permeable channel) to I/R-induced myocardial injury is unknown. We tested the hypothesis that cardiac TRPA1 confers myocyte sensitivity to aldehyde accumulation and promotes I/R injury. Although basal cardiovascular function in TRPA1-null mice was similar to that in wild-type (WT) mice, infarct size was significantly smaller in TRPA1-null mice than in WT mice (34.1 ± 9.3 vs. 14.3 ± 9.9% of the risk region, n = 8 and 7, respectively, P < 0.05), despite a similar I/R-induced area at risk (40.3 ±8.4% and 42.2 ± 11.3% for WT and TRPA1-null mice, respectively) after myocardial I/R (30 min of ischemia followed by 24 h of reperfusion) in situ. Positive TRPA1 immunofluorescence was present in murine and human hearts and was colocalized with connexin43 at intercalated disks in isolated murine cardiomyocytes. Cardiomyocyte TRPA1 was confirmed by quantitative RT-PCR, DNA sequencing, Western blot analysis, and electrophysiology. A role of TRPA1 in cardiomyocyte toxicity was demonstrated in isolated cardiomyocytes exposed to acrolein, an I/R-associated toxin that induces Ca2+ accumulation and hypercontraction, effects significantly blunted by HC-030031, a TRPA1 antagonist. Protection induced by HC-030031 was quantitatively equivalent to that induced by SN-6, a Na+/Ca2+ exchange inhibitor, further supporting a role of Ca2+ overload in acrolein-induced cardiomyocyte toxicity. These data indicate that cardiac TRPA1 activation likely contributes to I/R injury and, thus, that TRPA1 may be a novel therapeutic target for decreasing myocardial I/R injury. NEW & NOTEWORTHY Transient receptor potential ankyrin 1 (TRPA1) activation mediates increased blood flow, edema, and pain reception, yet its role in myocardial ischemia-reperfusion (I/R) injury is unknown. Genetic ablation of TRPA1 significantly decreased myocardial infarction after I/R in mice. Functional TRPA1 in cardiomyocytes was enriched in intercalated disks and contributed to acrolein-induced Ca2+ overload and hypercontraction. These data indicate that I/R activation of TRPA1 worsens myocardial infarction; TRPA1 may be a potential target to mitigate I/R injury.
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Affiliation(s)
- Daniel J Conklin
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Envirome Institute, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
| | - Yiru Guo
- Institute of Molecular Cardiology, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
| | - Matthew A Nystoriak
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Envirome Institute, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
| | - Ganapathy Jagatheesan
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Envirome Institute, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
| | - Detlef Obal
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Institute of Molecular Cardiology, University of Louisville , Louisville, Kentucky
- Department of Anesthesiology and Perioperative Medicine, University of Louisville , Louisville, Kentucky
| | - Peter J Kilfoil
- Smidt Heart Institute, Cedars-Sinai Hospital , Los Angeles, California
| | - Joseph David Hoetker
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Envirome Institute, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
| | - Luping Guo
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Envirome Institute, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
| | - Roberto Bolli
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Institute of Molecular Cardiology, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
| | - Aruni Bhatnagar
- Diabetes and Obesity Center, University of Louisville , Louisville, Kentucky
- Envirome Institute, University of Louisville , Louisville, Kentucky
- Department of Medicine, University of Louisville , Louisville, Kentucky
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12
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Jin L, Jagatheesan G, Guo L, Nystoriak M, Malovichko M, Lorkiewicz P, Bhatnagar A, Srivastava S, Conklin DJ. Formaldehyde Induces Mesenteric Artery Relaxation via a Sensitive Transient Receptor Potential Ankyrin-1 (TRPA1) and Endothelium-Dependent Mechanism: Potential Role in Postprandial Hyperemia. Front Physiol 2019; 10:277. [PMID: 30984013 PMCID: PMC6448550 DOI: 10.3389/fphys.2019.00277] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/04/2019] [Indexed: 11/30/2022] Open
Abstract
Formaldehyde (FA), the smallest aldehyde, is generated endogenously, and is widespread in the environment in foods, beverages and as a gas phase product of incomplete combustion. The main metabolite of FA, formate, was increased significantly in murine urine (∼3×) after overnight feeding. Because feeding increases mesenteric blood flow, we explored the direct effects of FA in isolated murine superior mesenteric artery (SMA). Over the concentration range of 30–1,200 μM, FA strongly and reversibly relaxed contractions of SMA induced by three different agonists: phenylephrine (PE), thromboxane A2 analog (U46,619) and high potassium (60K, 60 mM K+). Formate (to 1.5 mM) induced a modest relaxation. FA (>1,500 μM) irreversibly depressed vascular function in SMA indicating vasotoxicity. The sensitivity (EC50) but not the efficacy (% relaxation) of FA-induced relaxations was dependent on blood vessel type (SMA << aorta) and contractile agonist (PE, EC50= 52 ± 14 μM; U46,619, EC50= 514 ± 129 μM; 60K, EC50= 1,093 ± 87 μM). The most sensitive component of FA vasorelaxation was within physiological levels (30–150 μM) and was inhibited significantly by: (1) mechanically impaired endothelium; (2) Nω-Nitro-L-arginine methyl ester hydrochloride (L-NAME); (3) transient receptor potential ankyrin-1 (TRPA1) antagonist (A967079); (4) guanylyl cyclase (GC) inhibitor (ODQ); and, (5) K+ channel inhibitor (BaCl2). A similar mechanism of SMA vasorelaxation was stimulated by the TRPA1 agonist cinnamaldehyde. Positive TRPA1 immunofluorescent staining and gene-specific sequence were present in SMA but not in aorta. These data indicate FA, but not formate, robustly relaxes SMA via a sensitive TRPA1- and endothelium-dependent mechanism that is absent in aorta. Thus, as FA levels increase with feeding, FA likely contributes to the physiological reflex of post-prandial hyperemia via SMA vasodilatation.
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Affiliation(s)
- L Jin
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, United States
| | - G Jagatheesan
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - L Guo
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - M Nystoriak
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - M Malovichko
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - P Lorkiewicz
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - A Bhatnagar
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, United States.,Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - S Srivastava
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - D J Conklin
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, United States.,Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
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13
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Wan HJ, Wang Y, Si JQ, Li L. Propofol-induced vasodilation of mesenteric arterioles via BK Ca channel and gap junction. Exp Ther Med 2018; 16:2960-2968. [PMID: 30233668 PMCID: PMC6143855 DOI: 10.3892/etm.2018.6527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 05/02/2018] [Indexed: 12/13/2022] Open
Abstract
The present study aimed to investigate the role of propofol in mediating the vasomotor activity of the mesenteric arteriole (MA) of Sprague Dawley (SD) rats, and to elucidate the underlying mechanisms. The pressure myograph technique was used to examine the effect of different concentrations of propofol on the relaxation of blood vessels in the 2–3 mm MA segments freshly separated from the SD rats. The whole-cell patch-clamp technique was applied to observe the outward current of single vascular smooth muscle cells (VSMCs) obtained from the MAs of the SD rats. Furthermore, immunofluorescence was utilized to assess the expression of connexin (Cx) in the MAs of SD rats. The results indicated the following: i) Propofol relaxed the MA of SD rats in a concentration-dependent manner from 1×10−7 to 3×10−4 mol/l; ii) in the acutely dissociated VSMCs, propofol (1×10−7 to 3×10−4 mol/l) enhanced the outward current of VSMCs in a concentration-dependent manner; iii) the enhanced outward currents induced by propofol (1×10−5 mol/l) may be reversed by tetraethylammonium (TEA; 1 mmol/l), a calcium-activated K+ channel inhibitor; iv) the effect of propofol on the relaxation of the vasculature wAS reduced after perfusion with 1 mmol/l TEA; v) Cx40, Cx43 and Cx45 were expressed on the MA; 6) 18β-glycyrrhetintic acid and 2-aminoethoxydiphenyl borate, two types of gap junction blocker, inhibited the propofol-induced relaxation. The present study provides evidence that propofol relaxes the MA, which may be associated with its effect of enhancing the channel current of large-conductance calcium voltage-activated potassium channels, contributing to the K+ outflow and leading to VSMC hyperpolarization; the gap junction may facilitate the hyperpolarization, which may lead to vascular synchronized relaxation and thereby reduce the blood pressure.
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Affiliation(s)
- Hui-Juan Wan
- Department of Physiology, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China.,The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China.,Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Yang Wang
- Department of Physiology, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China.,The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China.,Department of Physiology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei 430070, P.R. China
| | - Jun-Qiang Si
- Department of Physiology, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China.,The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China.,Department of Physiology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei 430070, P.R. China.,Department of Neurobiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Li Li
- Department of Physiology, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China.,The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University Medical College, Shihezi, Xinjiang 832002, P.R. China
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14
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Hu Z, Wu Z, Gao J, Jia Q, Li N, Ouyang Y, Yao S, Chen X. Effects of HCN Channels in the Rostral Ventrolateral Medulla Contribute to the Cardiovascular Effects of Propofol. Mol Pharmacol 2018; 94:1280-1288. [PMID: 30194107 DOI: 10.1124/mol.118.111898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 08/30/2018] [Indexed: 11/22/2022] Open
Abstract
Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels were reported to express in the well-known vasomotor region, rostral ventrolateral medulla (RVLM), and can be inhibited by propofol. However, whether HCN channels in RVLM contribute to propofol-induced cardiovascular depression remains unclear. We recorded the hemodynamic changes when either continuous intravenous infusions or microinjections of propofol and ZD-7288 (4-ethylphenylamino-1,2-dimethyl-6-methylaminopyrimidinium chloride; HCN channel blocker) in RVLM. Expressions of HCN channels in RVLM neurons of mice of different ages were examined by quantitative real-time polymerase chain reaction and Western blotting. The effects of propofol and ZD-7288 on HCN channels and the excitability of RVLM neurons were examined by electrophysiological recording. Propofol (1.25, 2.5, 5, and 7.5 mg/kg per minute, i.v., 10 minutes) decreased mean arterial pressure (MAP) and heart rate (HR) in a concentration-dependent manner in wild-type mice that were markedly attenuated in HCN1 knockout mice. Bilateral microinjection of propofol (1%, 0.1 μl) in RVLM caused a sharp and pronounced drop in MAP and HR values, which were abated by pretreatment with ZD-7288. In electrophysiological recording, propofol (5, 10, and 20 μM) concentration-dependently inhibited HCN current, increased input resistance, decreased firing rate, and caused membrane hyperpolarization in RVLM neurons. These actions of propofol were attenuated by ZD-7288 pretreatment. The mRNA and protein level of HCN channels increased in an age-dependent manner, which may contribute to the age-dependent increase in the sensitivity to propofol. Our results indicated that the inhibition of HCN channels in RVLM neurons may contribute to propofol-induced cardiovascular inhibition.
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Affiliation(s)
- Zhiqiang Hu
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhilin Wu
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Jie Gao
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Qi Jia
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Na Li
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yeling Ouyang
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Shanglong Yao
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Xiangdong Chen
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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15
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Shvedova M, Anfinogenova Y, Atochina-Vasserman EN, Schepetkin IA, Atochin DN. c-Jun N-Terminal Kinases (JNKs) in Myocardial and Cerebral Ischemia/Reperfusion Injury. Front Pharmacol 2018; 9:715. [PMID: 30026697 PMCID: PMC6041399 DOI: 10.3389/fphar.2018.00715] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 06/13/2018] [Indexed: 12/18/2022] Open
Abstract
In this article, we review the literature regarding the role of c-Jun N-terminal kinases (JNKs) in cerebral and myocardial ischemia/reperfusion injury. Numerous studies demonstrate that JNK-mediated signaling pathways play an essential role in cerebral and myocardial ischemia/reperfusion injury. JNK-associated mechanisms are involved in preconditioning and post-conditioning of the heart and the brain. The literature and our own studies suggest that JNK inhibitors may exert cardioprotective and neuroprotective properties. The effects of modulating the JNK-depending pathways in the brain and the heart are reviewed. Cardioprotective and neuroprotective mechanisms of JNK inhibitors are discussed in detail including synthetic small molecule inhibitors (AS601245, SP600125, IQ-1S, and SR-3306), ion channel inhibitor GsMTx4, JNK-interacting proteins, inhibitors of mixed-lineage kinase (MLK) and MLK-interacting proteins, inhibitors of glutamate receptors, nitric oxide (NO) donors, and anesthetics. The role of JNKs in ischemia/reperfusion injury of the heart in diabetes mellitus is discussed in the context of comorbidities. According to reviewed literature, JNKs represent promising therapeutic targets for protection of the brain and the heart against ischemic stroke and myocardial infarction, respectively. However, different members of the JNK family exert diverse physiological properties which may not allow for systemic administration of non-specific JNK inhibitors for therapeutic purposes. Currently available candidate JNK inhibitors with high therapeutic potential are identified. The further search for selective JNK3 inhibitors remains an important task.
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Affiliation(s)
- Maria Shvedova
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States
| | - Yana Anfinogenova
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
- RASA Center in Tomsk, Tomsk Polytechnic University, Tomsk, Russia
| | - Elena N. Atochina-Vasserman
- RASA Center in Tomsk, Tomsk Polytechnic University, Tomsk, Russia
- RASA Center, Kazan Federal University, Kazan, Russia
| | - Igor A. Schepetkin
- RASA Center in Tomsk, Tomsk Polytechnic University, Tomsk, Russia
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States
| | - Dmitriy N. Atochin
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States
- RASA Center in Tomsk, Tomsk Polytechnic University, Tomsk, Russia
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16
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Oliveira-Paula GH, Lacchini R, Pinheiro LC, Ferreira GC, Luizon MR, Garcia WNP, Garcia LV, Tanus-Santos JE. Endothelial nitric oxide synthase polymorphisms affect the changes in blood pressure and nitric oxide bioavailability induced by propofol. Nitric Oxide 2018; 75:77-84. [PMID: 29496565 DOI: 10.1016/j.niox.2018.02.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 02/14/2018] [Accepted: 02/23/2018] [Indexed: 11/26/2022]
Abstract
Propofol anesthesia is usually accompanied by hypotension, which is at least in part related to enhanced endothelial nitric oxide synthase (NOS3)-derived NO bioavailability. We examined here whether NOS3 polymorphisms (rs2070744, 4b/4a VNTR, rs3918226 and rs1799983) and haplotypes affect the changes in blood pressure and NO bioavailability induced by propofol. Venous blood samples were collected from 168 patients at baseline and after 10 min of anesthesia with propofol 2 mg/kg administered intravenously by bolus injection. Genotypes were determined by polymerase chain reaction and haplotype frequencies were estimated. Nitrite concentrations were measured by using an ozone-based chemiluminescence assay, while NOx (nitrites + nitrates) levels were determined by using the Griess reaction. We found that CT + TT genotypes for the rs3918226 polymorphism, the ba + aa genotypes for the 4b/4a VNTR and the CTbT haplotype were associated with lower decreases in blood pressure and lower increases in nitrite levels after propofol anesthesia. On the other hand, the TCbT and CCbT haplotypes were associated with more intense decreases in blood pressure and higher increases in nitrite levels in response to propofol. Our results suggest that NOS3 polymorphisms and haplotypes influence the hypotensive responses to propofol, possibly by affecting NO bioavailability.
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Affiliation(s)
- Gustavo H Oliveira-Paula
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Riccardo Lacchini
- Department of Psychiatric Nursing and Human Sciences, Ribeirao Preto College of Nursing, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Lucas C Pinheiro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Graziele C Ferreira
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Marcelo R Luizon
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Waynice N P Garcia
- Department of Biomechanics, Medicine and Rehabilitation of the Locomotor System, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Luis V Garcia
- Department of Biomechanics, Medicine and Rehabilitation of the Locomotor System, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Jose E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil.
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17
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Williams WR. Cell signal transduction: hormones, neurotransmitters and therapeutic drugs relate to purine nucleotide structure. J Recept Signal Transduct Res 2018; 38:101-111. [PMID: 29402169 DOI: 10.1080/10799893.2018.1431279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Purine nucleotides transduce cell membrane receptor responses and modulate ion channel activity. This is accomplished through conformational change in the structure of nucleotides and cell membrane associated proteins. The aim of this study is to enhance our understanding of nucleotide dependence in regard to signal transduction events, drug action and pharmacological promiscuity. Nucleotides and ligand structures regulating Gα protein subunits, voltage- and ligand-gated ion channels are investigated for molecular similarity using a computational program. Results differentiate agonist and antagonist structures, identify molecular similarity within nucleotide and ligand structures and demonstrate the potential of ligands to regulate nucleotide conformational change. Relative molecular similarity within nucleotides and the ligands of the major receptor classes provides insight into mechanisms of receptor and ion channel regulation. The nucleotide template model has some merit as an initial screening tool in the study and comparison of drug and hormone structures.
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Affiliation(s)
- W R Williams
- a Faculty of Life Sciences & Education , University of South Wales , Cardiff , UK
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18
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Oliveira-Paula GH, Pinheiro LC, Ferreira GC, Garcia WNP, Lacchini R, Garcia LV, Tanus-Santos JE. Angiotensin converting enzyme inhibitors enhance the hypotensive effects of propofol by increasing nitric oxide production. Free Radic Biol Med 2018; 115:10-17. [PMID: 29138017 DOI: 10.1016/j.freeradbiomed.2017.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/04/2017] [Accepted: 11/09/2017] [Indexed: 10/18/2022]
Abstract
Propofol anesthesia is usually accompanied by hypotension. Studies have shown that the hypotensive effects of propofol increase in patients treated with angiotensin-converting enzyme inhibitors (ACEi). Given that both propofol and ACEi affect nitric oxide (NO) signaling, the present study tested the hypothesis that ACEi treatment induces pronounced hypotensive responses to propofol by increasing NO bioavailability. In this study we evaluated 65 patients, divided into three groups: hypertensive patients chronically treated with ACEi (HT-ACEi; n = 21), hypertensive patients treated with other antihypertensive drugs instead of ACEi, such as angiotensin II receptor blockers, β-blockers or diuretics (HT; n = 21) and healthy normotensive subjects (NT; n = 23). Venous blood samples were collected at baseline and after 10min of anesthesia with propofol 2mg/kg administrated intravenously by bolus injection. Hemodynamic parameters were recorded at each blood sample collection. Nitrite levels were determined by using an ozone-based chemiluminescence assay, while NOx (nitrites+nitrates) levels were measured by using the Griess reaction. Additionally, experimental approaches were used to validate our clinical findings. Higher decreases in blood pressure after propofol anesthesia were observed in HT-ACEi group as compared with those found in NT and HT groups. Consistently, rats treated with the ACEi enalapril showed more intense hypotensive responses to propofol. The hypotensive effects of propofol were associated with increased NO production in both clinical and experimental approaches. Enhanced increases in nitrite levels after propofol anesthesia were observed in HT-ACEi patients compared with NT and HT groups. Accordingly, rats treated with enalapril showed increased vascular NO formation after propofol anesthesia compared with rats receiving vehicle. Our data show that ACEi enhance the hypotensive responses to propofol anesthesia and increase nitrite concentrations. These findings suggest that increased NO bioavailability may account for the enhanced hypotensive effects of propofol in ACEi-treated patients.
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Affiliation(s)
- Gustavo H Oliveira-Paula
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Lucas C Pinheiro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Graziele C Ferreira
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Waynice N P Garcia
- Department of Biomechanics, Medicine and Rehabilitation of the Locomotor System, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Riccardo Lacchini
- Department of Psychiatric Nursing and Human Sciences, Ribeirao Preto College of Nursing, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Luis V Garcia
- Department of Biomechanics, Medicine and Rehabilitation of the Locomotor System, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Jose E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil.
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19
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Woll KA, Skinner KA, Gianti E, Bhanu NV, Garcia BA, Carnevale V, Eckenhoff RG, Gaudet R. Sites Contributing to TRPA1 Activation by the Anesthetic Propofol Identified by Photoaffinity Labeling. Biophys J 2017; 113:2168-2172. [PMID: 28935134 DOI: 10.1016/j.bpj.2017.08.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/07/2017] [Accepted: 08/24/2017] [Indexed: 11/16/2022] Open
Abstract
In addition to inducing anesthesia, propofol activates a key component of the pain pathway, the transient receptor potential ankyrin 1 ion channel (TRPA1). Recent mutagenesis studies suggested a potential activation site within the transmembrane domain, near the A-967079 cavity. However, mutagenesis cannot distinguish between protein-based and ligand-based mechanisms, nor can this site explain the complex modulation by propofol. Thus more direct approaches are required to reveal potentially druggable binding sites. Here we apply photoaffinity labeling using a propofol derivative, meta-azipropofol, for direct identification of binding sites in mouse TRPA1. We confirm that meta-azipropofol activates TRPA1 like the parent anesthetic, and identify two photolabeled residues (V954 and E969) in the S6 helix. In combination with docking to closed and open state models of TRPA1, photoaffinity labeling suggested that the A-967079 cavity is a positive modulatory site for propofol. Further, the photoaffinity labeling of E969 indicated pore block as a likely mechanism for propofol inhibition at high concentrations. The direct identification of drug-binding sites clarifies the molecular mechanisms of important TRPA1 agonists, and will facilitate drug design efforts to modulate TRPA1.
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Affiliation(s)
- Kellie A Woll
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kenneth A Skinner
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts
| | - Eleonora Gianti
- Institute for Computational Molecular Science, Department of Chemistry, Temple University, Philadelphia, Pennsylvania
| | - Natarajan V Bhanu
- Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Benjamin A Garcia
- Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Vincenzo Carnevale
- Institute for Computational Molecular Science, Department of Chemistry, Temple University, Philadelphia, Pennsylvania
| | - Roderic G Eckenhoff
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Rachelle Gaudet
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts.
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20
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Sinharoy P, Bratz IN, Sinha S, Showalter LE, Andrei SR, Damron DS. TRPA1 and TRPV1 contribute to propofol-mediated antagonism of U46619-induced constriction in murine coronary arteries. PLoS One 2017; 12:e0180106. [PMID: 28644897 PMCID: PMC5482493 DOI: 10.1371/journal.pone.0180106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 06/09/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Transient receptor potential (TRP) ion channels have emerged as key components contributing to vasoreactivity. Propofol, an anesthetic is associated with adverse side effects including hypotension and acute pain upon infusion. Our objective was to determine the extent to which TRPA1 and/or TRPV1 ion channels are involved in mediating propofol-induced vasorelaxation of mouse coronary arterioles in vitro and elucidate the potential cellular signal transduction pathway by which this occurs. METHODS Hearts were excised from anesthetized mice and coronary arterioles were dissected from control C57Bl/6J, TRPA1-/-, TRPV1-/- and double-knockout mice (TRPAV-/-). Isolated microvessels were cannulated and secured in a temperature-controlled chamber and allowed to equilibrate for 1 hr. Vasoreactivity studies were performed in microvessels pre-constricted with U46619 to assess the dose-dependent relaxation effects of propofol on coronary microvascular tone. RESULTS Propofol-induced relaxation was unaffected in vessels obtained from TRPV1-/- mice, markedly attenuated in pre-constricted vessels obtained from TRPA1-/- mice and abolished in vessels obtained from TRPAV-/- mice. Furthermore, NOS inhibition with L-NAME or endothelium denuding abolished the proporfol-induced depressor response in pre-constricted vessels obtained from all mice. In the absence of L-NAME, BKCa inhibition with penitrem A markedly attenuated propofol-mediated relaxation in vessels obtained from wild-type mice and to a lesser extent in vessels obtained from TRPV1-/-, mice with no effect in vessels obtained from TRPA1-/- or TRPAV-/- mice. CONCLUSIONS TRPA1 and TRPV1 appear to contribute to the propofol-mediated antagonism of U46619-induced constriction in murine coronary microvessels that involves activation of NOS and BKCa.
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Affiliation(s)
- Pritam Sinharoy
- Department of Anesthesia, Perioperative and Pain Medicine, Stanford School of Medicine, Stanford, California, United States of America
| | - Ian N. Bratz
- Department of Integrative Medical Sciences, Northeast Ohio Medical College, Rootstown, Ohio, United States of America
| | - Sayantani Sinha
- Department of Surgery, Division of Orthopedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Loral E. Showalter
- Department of Biological Sciences, Kent State University, Kent, Ohio, United States of America
| | - Spencer R. Andrei
- Department of Biological Sciences, Kent State University, Kent, Ohio, United States of America
| | - Derek S. Damron
- Department of Biological Sciences, Kent State University, Kent, Ohio, United States of America
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21
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Identification of a putative binding site critical for general anesthetic activation of TRPA1. Proc Natl Acad Sci U S A 2017; 114:3762-3767. [PMID: 28320952 DOI: 10.1073/pnas.1618144114] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
General anesthetics suppress CNS activity by modulating the function of membrane ion channels, in particular, by enhancing activity of GABAA receptors. In contrast, several volatile (isoflurane, desflurane) and i.v. (propofol) general anesthetics excite peripheral sensory nerves to cause pain and irritation upon administration. These noxious anesthetics activate transient receptor potential ankyrin repeat 1 (TRPA1), a major nociceptive ion channel, but the underlying mechanisms and site of action are unknown. Here we exploit the observation that pungent anesthetics activate mammalian but not Drosophila TRPA1. Analysis of chimeric Drosophila and mouse TRPA1 channels reveal a critical role for the fifth transmembrane domain (S5) in sensing anesthetics. Interestingly, we show that anesthetics share with the antagonist A-967079 a potential binding pocket lined by residues in the S5, S6, and the first pore helix; isoflurane competitively disrupts A-967079 antagonism, and introducing these mammalian TRPA1 residues into dTRPA1 recapitulates anesthetic agonism. Furthermore, molecular modeling predicts that isoflurane and propofol bind to this pocket by forming H-bond and halogen-bond interactions with Ser-876, Met-915, and Met-956. Mutagenizing Met-915 or Met-956 selectively abolishes activation by isoflurane and propofol without affecting actions of A-967079 or the agonist, menthol. Thus, our combined experimental and computational results reveal the potential binding mode of noxious general anesthetics at TRPA1. These data may provide a structural basis for designing drugs to counter the noxious and vasorelaxant properties of general anesthetics and may prove useful in understanding effects of anesthetics on related ion channels.
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