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Hur KH, Lee Y, Donio AL, Kim SK, Lee BR, Seo JY, Kundu D, Kim KM, Kohut SJ, Lee SY, Jang CG. Transient receptor potential ankyrin 1 channel modulates the abuse-related mechanisms of methamphetamine through interaction with dopamine transporter. Br J Pharmacol 2024. [PMID: 38644533 DOI: 10.1111/bph.16370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 02/17/2024] [Accepted: 02/29/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND AND PURPOSE Methamphetamine (METH) use disorder has risen dramatically over the past decade, and there are currently no FDA-approved medications due, in part, to gaps in our understanding of the pharmacological mechanisms related to METH action in the brain. EXPERIMENTAL APPROACH Here, we investigated whether transient receptor potential ankyrin 1 (TRPA1) mediates each of several METH abuse-related behaviours in rodents: self-administration, drug-primed reinstatement, acquisition of conditioned place preference, and hyperlocomotion. Additionally, METH-induced molecular (i.e., neurotransmitter and protein) changes in the brain were compared between wild-type and TRPA1 knock-out mice. Finally, the relationship between TRPA1 and the dopamine transporter was investigated through immunoprecipitation and dopamine reuptake assays. KEY RESULTS TRPA1 antagonism blunted METH self-administration and drug-primed reinstatement of METH-seeking behaviour. Further, development of METH-induced conditioned place preference and hyperlocomotion were inhibited by TRPA1 antagonist treatment, effects that were not observed in TRPA1 knock-out mice. Similarly, molecular studies revealed METH-induced increases in dopamine levels and expression of dopamine system-related proteins in wild-type, but not in TRPA1 knock-out mice. Furthermore, pharmacological blockade of TRPA1 receptors reduced the interaction between TRPA1 and the dopamine transporter, thereby increasing dopamine reuptake activity by the transporter. CONCLUSION AND IMPLICATIONS This study demonstrates that TRPA1 is involved in the abuse-related behavioural effects of METH, potentially through its modulatory role in METH-induced activation of dopaminergic neurotransmission. Taken together, these data suggest that TRPA1 may be a novel therapeutic target for treating METH use disorder.
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Affiliation(s)
- Kwang-Hyun Hur
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
- Behavioral Neuroimaging Laboratory, McLean Hospital, Boston, Massachusetts, USA
- Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA
| | - Youyoung Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Audrey Lynn Donio
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Seon-Kyung Kim
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Bo-Ram Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jee-Yeon Seo
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Dooti Kundu
- Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwang-Ju, Republic of Korea
| | - Kyeong-Man Kim
- Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwang-Ju, Republic of Korea
| | - Stephen J Kohut
- Behavioral Neuroimaging Laboratory, McLean Hospital, Boston, Massachusetts, USA
- Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA
| | - Seok-Yong Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Choon-Gon Jang
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
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Rivera-Mancilla E, Al-Hassany L, Marynissen H, Bamps D, Garrelds IM, Cornette J, Danser AHJ, Villalón CM, de Hoon JN, MaassenVanDenBrink A. Functional Analysis of TRPA1, TRPM3, and TRPV1 Channels in Human Dermal Arteries and Their Role in Vascular Modulation. Pharmaceuticals (Basel) 2024; 17:156. [PMID: 38399371 PMCID: PMC10892635 DOI: 10.3390/ph17020156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Transient receptor potential (TRP) channels are pivotal in modulating vascular functions. In fact, topical application of cinnamaldehyde or capsaicin (TRPA1 and TRPV1 channel agonists, respectively) induces "local" changes in blood flow by releasing vasodilator neuropeptides. We investigated TRP channels' contributions and the pharmacological mechanisms driving vasodilation in human isolated dermal arteries. Ex vivo studies assessed the vascular function of artery segments and analyzed the effects of different compounds. Concentration-response curves to cinnamaldehyde, pregnenolone sulfate (PregS, TRPM3 agonist), and capsaicin were constructed to evaluate the effect of the antagonists HC030031 (TRPA1); isosakuranetin (TRPM3); and capsazepine (TRPV1). Additionally, the antagonists/inhibitors olcegepant (CGRP receptor); L-NAME (nitric oxide synthase); indomethacin (cyclooxygenase); TRAM-34 plus apamin (K+ channels); and MK-801 (NMDA receptors, only for PregS) were used. Moreover, CGRP release was assessed in the organ bath fluid post-agonist-exposure. In dermal arteries, cinnamaldehyde- and capsaicin-induced relaxation remained unchanged after the aforementioned antagonists, while PregS-induced relaxation was significantly inhibited by isosakuranetin, L-NAME and MK-801. Furthermore, there was a significant increase in CGRP levels post-agonist-exposure. In our experimental model, TRPA1 and TRPV1 channels seem not to be involved in cinnamaldehyde- or capsaicin-induced relaxation, respectively, whereas TRPM3 channels contribute to PregS-induced relaxation, possibly via CGRP-independent mechanisms.
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Affiliation(s)
- Eduardo Rivera-Mancilla
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (E.R.-M.); (L.A.-H.); (I.M.G.); (A.H.J.D.)
| | - Linda Al-Hassany
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (E.R.-M.); (L.A.-H.); (I.M.G.); (A.H.J.D.)
| | - Heleen Marynissen
- Department of Pharmaceutical and Pharmacological Sciences, Center for Clinical Pharmacology, KU Leuven, 300 Leuven, Belgium; (H.M.); (D.B.); (J.N.d.H.)
| | - Dorien Bamps
- Department of Pharmaceutical and Pharmacological Sciences, Center for Clinical Pharmacology, KU Leuven, 300 Leuven, Belgium; (H.M.); (D.B.); (J.N.d.H.)
| | - Ingrid M. Garrelds
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (E.R.-M.); (L.A.-H.); (I.M.G.); (A.H.J.D.)
| | - Jérôme Cornette
- Department of Obstetrics and Fetal Medicine, Erasmus University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands;
| | - A. H. Jan Danser
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (E.R.-M.); (L.A.-H.); (I.M.G.); (A.H.J.D.)
| | - Carlos M. Villalón
- Department of Pharmacobiology, Cinvestav-Coapa, Mexico City C.P. 14330, Mexico;
| | - Jan N. de Hoon
- Department of Pharmaceutical and Pharmacological Sciences, Center for Clinical Pharmacology, KU Leuven, 300 Leuven, Belgium; (H.M.); (D.B.); (J.N.d.H.)
| | - Antoinette MaassenVanDenBrink
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (E.R.-M.); (L.A.-H.); (I.M.G.); (A.H.J.D.)
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Jesus RLC, Araujo FA, Alves QL, Dourado KC, Silva DF. Targeting temperature-sensitive transient receptor potential channels in hypertension: far beyond the perception of hot and cold. J Hypertens 2023; 41:1351-1370. [PMID: 37334542 DOI: 10.1097/hjh.0000000000003487] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Transient receptor potential (TRP) channels are nonselective cation channels and participate in various physiological roles. Thus, changes in TRP channel function or expression have been linked to several disorders. Among the many TRP channel subtypes, the TRP ankyrin type 1 (TRPA1), TRP melastatin type 8 (TRPM8), and TRP vanilloid type 1 (TRPV1) channels are temperature-sensitive and recognized as thermo-TRPs, which are expressed in the primary afferent nerve. Thermal stimuli are converted into neuronal activity. Several studies have described the expression of TRPA1, TRPM8, and TRPV1 in the cardiovascular system, where these channels can modulate physiological and pathological conditions, including hypertension. This review provides a complete understanding of the functional role of the opposing thermo-receptors TRPA1/TRPM8/TRPV1 in hypertension and a more comprehensive appreciation of TRPA1/TRPM8/TRPV1-dependent mechanisms involved in hypertension. These channels varied activation and inactivation have revealed a signaling pathway that may lead to innovative future treatment options for hypertension and correlated vascular diseases.
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Affiliation(s)
- Rafael Leonne C Jesus
- Laboratory of Cardiovascular Physiology and Pharmacology, Federal University of Bahia, Salvador
| | - Fênix A Araujo
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation - FIOCRUZ, Bahia, Brazil
| | - Quiara L Alves
- Laboratory of Cardiovascular Physiology and Pharmacology, Federal University of Bahia, Salvador
| | - Keina C Dourado
- Laboratory of Cardiovascular Physiology and Pharmacology, Federal University of Bahia, Salvador
| | - Darizy F Silva
- Laboratory of Cardiovascular Physiology and Pharmacology, Federal University of Bahia, Salvador
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation - FIOCRUZ, Bahia, Brazil
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Cui F, Mi H, Guan Y, Zhu Y, Wang R, Tian Y, Yang K, Zhang Y. Chronic intermittent hypobaric hypoxia ameliorates vascular reactivity through upregulating adiponectin expression of PVAT in metabolic syndrome rats. Can J Physiol Pharmacol 2023; 101:160-170. [PMID: 36716441 DOI: 10.1139/cjpp-2022-0252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Cumulating evidence demonstrated that chronic intermittent hypobaric hypoxia (CIHH) had beneficial effects on the body. This study investigated the role of perivascular adipose tissue (PVAT) in ameliorating effect of CIHH on vascular reactivity by adiponectin in mesenteric artery of metabolic syndrome (MS) rats. Main methods: 6-week-old male Sprague-Dawley rats were randomly divided into four groups: control (CON), MS model, CIHH treatment, and MS + CIHH treatment group. The size of adipocytes in PVAT was measured by scanning electron microscopy. Serum adiponectin was measured. The microvessel recording technique was used to observe the effect of CIHH on contraction and relaxation in mesenteric artery rings. Also, the expressions of interleukin-1β, tumor necrosis factor-α, adiponectin, AdipoR1, AdipoR2, APPL1, and endothelial nitric oxide synthase (eNOS) were assayed by Western blotting. Key findings: in MS rats, adipocyte size increased, serum adiponectin decreased, contraction reaction increased while relaxation reaction decreased, the expression of pro-inflammatory cytokines was upregulated, while adiponectin was downregulated in PVAT, and the expressions of AdipoR1, AdipoR2, APPL, and phosphorylated-eNOS were downregulated in mesenteric artery. All aforementioned abnormalities of MS were ameliorated in MS + CIHH rats. We concluded that CIHH treatment improves vascular reactivity through upregulating adiponectin expression and downregulating pro-inflammatory cytokine expression of PVAT in MS rats.
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Affiliation(s)
- Fang Cui
- Department of Physiology, Hebei Medical University, Shijiazhuang 050017, P.R. China.,Department of Electron Microscope Laboratory, Hebei Medical University, Shijiazhuang 050017, P.R. China
| | - Haichao Mi
- Department of Clinical Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, P.R. China
| | - Yue Guan
- Department of Physiology, Hebei Medical University, Shijiazhuang 050017, P.R. China
| | - Yan Zhu
- Department of Electron Microscope Laboratory, Hebei Medical University, Shijiazhuang 050017, P.R. China
| | - Ruotong Wang
- Department of Clinical Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, P.R. China
| | - Yanming Tian
- Department of Physiology, Hebei Medical University, Shijiazhuang 050017, P.R. China
| | - Kaifan Yang
- College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, P.R. China
| | - Yi Zhang
- Department of Physiology, Hebei Medical University, Shijiazhuang 050017, P.R. China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease, Shijiazhuang 050000, P.R. China
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5
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Kozyreva TV, Voronova IP. Expression of Trpa1 and Trpv1 Genes in the Hypothalamus and Blood Pressure in Normotensive and Hypertensive Rats. Effect of Losartan and Captopril. Bull Exp Biol Med 2023; 174:426-430. [PMID: 36881283 DOI: 10.1007/s10517-023-05722-4] [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: 06/23/2022] [Indexed: 03/08/2023]
Abstract
Analysis of the role of genomic regulation of systolic BP (SBP) in normal and hypertensive rats showed the presence of an inverse relationship between the level of Trpa1 gene expression in the anterior hypothalamus and SBP. Losartan, an antagonist of angiotensin II type 1 receptors, shifts it to the region of lower SBP and greater expression of the Trpa1 gene, which can attest to interaction of the TRPA1 ion channel in the anterior hypothalamus with angiotensin II type 1 receptors. No association was found between the expression of the Trpv1 gene in the hypothalamus and SBP. We have previously shown that activation of the peripheral ion channel TRPA1 in the skin also contributes to SBP decrease in hypertensive animals. Hence, activation of the TRPA1 ion channel both in the brain and at the periphery has similar effects on SBP and leads to its decrease.
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Affiliation(s)
- T V Kozyreva
- Research Institute of Neurosciences and Medicine, Novosibirsk, Russia.
| | - I P Voronova
- Research Institute of Neurosciences and Medicine, Novosibirsk, Russia
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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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Lansdell TA, Chambers LC, Dorrance AM. Endothelial Cells and the Cerebral Circulation. Compr Physiol 2022; 12:3449-3508. [PMID: 35766836 DOI: 10.1002/cphy.c210015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Endothelial cells form the innermost layer of all blood vessels and are the only vascular component that remains throughout all vascular segments. The cerebral vasculature has several unique properties not found in the peripheral circulation; this requires that the cerebral endothelium be considered as a unique entity. Cerebral endothelial cells perform several functions vital for brain health. The cerebral vasculature is responsible for protecting the brain from external threats carried in the blood. The endothelial cells are central to this requirement as they form the basis of the blood-brain barrier. The endothelium also regulates fibrinolysis, thrombosis, platelet activation, vascular permeability, metabolism, catabolism, inflammation, and white cell trafficking. Endothelial cells regulate the changes in vascular structure caused by angiogenesis and artery remodeling. Further, the endothelium contributes to vascular tone, allowing proper perfusion of the brain which has high energy demands and no energy stores. In this article, we discuss the basic anatomy and physiology of the cerebral endothelium. Where appropriate, we discuss the detrimental effects of high blood pressure on the cerebral endothelium and the contribution of cerebrovascular disease endothelial dysfunction and dementia. © 2022 American Physiological Society. Compr Physiol 12:3449-3508, 2022.
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Affiliation(s)
- Theresa A Lansdell
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, 48824, USA
| | - Laura C Chambers
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, 48824, USA
| | - Anne M Dorrance
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, 48824, USA
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Alvarado MG, Thakore P, Earley S. Transient Receptor Potential Channel Ankyrin 1: A Unique Regulator of Vascular Function. Cells 2021; 10:cells10051167. [PMID: 34064835 PMCID: PMC8151290 DOI: 10.3390/cells10051167] [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: 04/13/2021] [Revised: 05/05/2021] [Accepted: 05/09/2021] [Indexed: 12/27/2022] Open
Abstract
TRPA1 (transient receptor potential ankyrin 1), the lone member of the mammalian ankyrin TRP subfamily, is a Ca2+-permeable, non-selective cation channel. TRPA1 channels are localized to the plasma membranes of various cells types, including sensory neurons and vascular endothelial cells. The channel is endogenously activated by byproducts of reactive oxygen species, such as 4-hydroxy-2-noneal, as well as aromatic, dietary molecules including allyl isothiocyanate, a derivative of mustard oil. Several studies have implicated TRPA1 as a regulator of vascular tone that acts through distinct mechanisms. First, TRPA1 on adventitial sensory nerve fibers mediates neurogenic vasodilation by stimulating the release of the vasodilator, calcitonin gene-related peptide. Second, TRPA1 is expressed in the endothelium of the cerebral vasculature, but not in other vascular beds, and its activation results in localized Ca2+ signals that drive endothelium-dependent vasodilation. Finally, TRPA1 is functionally present on brain capillary endothelial cells, where its activation orchestrates a unique biphasic propagation mechanism that dilates upstream arterioles. This response is vital for neurovascular coupling and functional hyperemia in the brain. This review provides a brief overview of the biophysical and pharmacological properties of TRPA1 and discusses the importance of the channel in vascular control and pathophysiology.
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Allyl isothiocyanate (AITC) activates nonselective cation currents in human cardiac fibroblasts: possible involvement of TRPA1. Heliyon 2021; 7:e05816. [PMID: 33458442 PMCID: PMC7797518 DOI: 10.1016/j.heliyon.2020.e05816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/11/2020] [Accepted: 12/18/2020] [Indexed: 12/25/2022] Open
Abstract
The effects of allyl isothiocyanate (AITC), transient receptor potential ankyrin 1 (TRPA1) agonist, on cultured human cardiac fibroblasts were examined by measuring intracellular Ca2+ concentration [Ca2+]i and whole-cell voltage clamp techniques. AITC (200 μM) increased Ca2+ entry in the presence of [Ca2+]i. Ruthenium red (RR) (30 μM), and La3+ (0.5 mM), a general cation channel blocker, inhibited AITC-induced Ca2+ entry. Under the patch pipette filled with Cs+- and EGTA-solution, AITC induced the current of a reversal potential (Er) of approximately +0 mV. When extracellular Na+ ion was changed by NMDG+, the inward current activated by AITC was markedly reduced. La3+ and RR inhibited the AITC-induced current. The conventional RT-PCR analysis, Western blot, and immunocytochemical studies showed TRPA1 mRNA and protein expression. The present study shows the first evidence for functional Ca2+-permeable nonselective cation currents induced by AITC, possibly via TRPA1 in human cardiac fibroblast.
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Marguerite NT, Bernard J, Harrison DA, Harris D, Cooper RL. Effect of Temperature on Heart Rate for Phaenicia sericata and Drosophila melanogaster with Altered Expression of the TrpA1 Receptors. INSECTS 2021; 12:38. [PMID: 33418937 PMCID: PMC7825143 DOI: 10.3390/insects12010038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/24/2020] [Accepted: 01/02/2021] [Indexed: 11/29/2022]
Abstract
The transient receptor potential (TrpA-ankyrin) receptor has been linked to pathological conditions in cardiac function in mammals. To better understand the function of the TrpA1 in regulation of the heart, a Drosophila melanogaster model was used to express TrpA1 in heart and body wall muscles. Heartbeat of in intact larvae as well as hearts in situ, devoid of hormonal and neural input, indicate that strong over-expression of TrpA1 in larvae at 30 or 37 °C stopped the heart from beating, but in a diastolic state. Cardiac function recovered upon cooling after short exposure to high temperature. Parental control larvae (UAS-TrpA1) increased heart rate transiently at 30 and 37 °C but slowed at 37 °C within 3 min for in-situ preparations, while in-vivo larvae maintained a constant heart rate. The in-situ preparations maintained an elevated rate at 30 °C. The heartbeat in the TrpA1-expressing strains could not be revived at 37 °C with serotonin. Thus, TrpA1 activation may have allowed enough Ca2+ influx to activate K(Ca) channels into a form of diastolic stasis. TrpA1 activation in body wall muscle confirmed a depolarization of membrane. In contrast, blowfly Phaenicia sericata larvae increased heartbeat at 30 and 37 °C, demonstrating greater cardiac thermotolerance.
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Affiliation(s)
- Nicole T. Marguerite
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA; (N.T.M.); (J.B.); (D.A.H.)
| | - Jate Bernard
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA; (N.T.M.); (J.B.); (D.A.H.)
| | - Douglas A. Harrison
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA; (N.T.M.); (J.B.); (D.A.H.)
| | | | - Robin L. Cooper
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA; (N.T.M.); (J.B.); (D.A.H.)
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Vaidya B, Sharma SS. Transient Receptor Potential Channels as an Emerging Target for the Treatment of Parkinson's Disease: An Insight Into Role of Pharmacological Interventions. Front Cell Dev Biol 2020; 8:584513. [PMID: 33330461 PMCID: PMC7714790 DOI: 10.3389/fcell.2020.584513] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/30/2020] [Indexed: 12/21/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative disorder characterized by the symptoms of motor deficits and cognitive decline. There are a number of therapeutics available for the treatment of PD, but most of them suffer from serious side effects such as bradykinesia, dyskinesia and on-off effect. Therefore, despite the availability of these pharmacological agents, PD patients continue to have an inferior quality of life. This has warranted a need to look for alternate strategies and molecular targets. Recent evidence suggests the Transient Receptor Potential (TRP) channels could be a potential target for the management of motor and non-motor symptoms of PD. Though still in the preclinical stages, agents targeting these channels have shown immense potential in the attenuation of behavioral deficits and signaling pathways. In addition, these channels are known to be involved in the regulation of ionic homeostasis, which is disrupted in PD. Moreover, activation or inhibition of many of the TRP channels by calcium and oxidative stress has also raised the possibility of their paramount involvement in affecting the other molecular mechanisms associated with PD pathology. However, due to the paucity of information available and lack of specificity, none of these agents have gone into clinical trials for PD treatment. Considering their interaction with oxidative stress, apoptosis and excitotoxicity, TRP channels could be considered as a potential future target for the treatment of PD.
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Affiliation(s)
- Bhupesh Vaidya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Mohali, India
| | - Shyam Sunder Sharma
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Mohali, India
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Andrei SR, Ghosh M, Sinharoy P, Damron DS. Stimulation of TRPA1 attenuates ischemia-induced cardiomyocyte cell death through an eNOS-mediated mechanism. Channels (Austin) 2020; 13:192-206. [PMID: 31161862 PMCID: PMC6557600 DOI: 10.1080/19336950.2019.1623591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The functional expression of transient receptor potential cation channel of the ankyrin-1 subtype (TRPA1) has recently been identified in adult mouse cardiac tissue where stimulation of this ion channel leads to increases in adult mouse ventricular cardiomyocyte (CM) contractile function via a Ca2+-Calmodulin-dependent kinase (CaMKII) pathway. However, the extent to which TRPA1 induces nitric oxide (NO) production in CMs, and whether this signaling cascade mediates physiological or pathophysiological events in cardiac tissue remains elusive. Freshly isolated CMs from wild-type (WT) or TRPA1 knockout (TRPA1-/-) mouse hearts were treated with AITC (100 µM) and prepared for immunoblot, NO detection or ischemia protocols. Our findings demonstrate that TRPA1 stimulation with AITC results in phosphorylation of protein kinase B (Akt) and endothelial NOS (eNOS) concomitantly with NO production in a concentration- and time-dependent manner. Additionally, we found that TRPA1 induced increases in CM [Ca2+]i and contractility occur independently of Akt and eNOS activation mechanisms. Further analysis revealed that the presence and activation of TRPA1 promotes CM survival and viability following ischemic insult via a mechanism partially dependent upon eNOS. Therefore, activation of the TRPA1/Akt/eNOS pathway attenuates ischemia-induced CM cell death.
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Affiliation(s)
- Spencer R Andrei
- a Department of Medicine , Vanderbilt University Medical Center , Nashville , TN , USA
| | - Monica Ghosh
- b Department of Biomedical Sciences , Kent State University , Kent , OH , USA
| | - Pritam Sinharoy
- c Department of Biopharmaceutical Development , Medimmune LLC , Gaithersburg , MD , USA
| | - Derek S Damron
- b Department of Biomedical Sciences , Kent State University , Kent , OH , USA
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13
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Thakore P, Ali S, Earley S. Regulation of vascular tone by transient receptor potential ankyrin 1 channels. CURRENT TOPICS IN MEMBRANES 2020; 85:119-150. [PMID: 32402637 DOI: 10.1016/bs.ctm.2020.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The Ca2+-permeable, non-selective cation channel, TRPA1 (transient receptor potential ankyrin 1), is the sole member of the ankyrin TRP subfamily. TRPA1 channels are expressed on the plasma membrane of neurons as well as non-neuronal cell types, such as vascular endothelial cells. TRPA1 is activated by electrophilic compounds, including dietary molecules such as allyl isothiocyanate, a derivative of mustard. Endogenously, the channel is thought to be activated by reactive oxygen species and their metabolites, such as 4-hydroxynonenal (4-HNE). In the context of the vasculature, activation of TRPA1 channels results in a vasodilatory response mediated by two distinct mechanisms. In the first instance, TRPA1 is expressed in sensory nerves of the vasculature and, upon activation, mediates release of the potent dilator, calcitonin gene-related peptide (CGRP). In the second, work from our laboratory has demonstrated that TRPA1 is expressed in the endothelium of blood vessels exclusively in the cerebral vasculature, where its activation produces a localized Ca2+ signal that results in dilation of cerebral arteries. In this chapter, we provide an in-depth overview of the biophysical and pharmacological properties of TRPA1 channels and their importance in regulating vascular tone.
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Affiliation(s)
- Pratish Thakore
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno, School of Medicine, Reno, NV, United States
| | - Sher Ali
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno, School of Medicine, Reno, NV, United States
| | - Scott Earley
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno, School of Medicine, Reno, NV, United States.
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14
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Hof T, Chaigne S, Récalde A, Sallé L, Brette F, Guinamard R. Transient receptor potential channels in cardiac health and disease. Nat Rev Cardiol 2020; 16:344-360. [PMID: 30664669 DOI: 10.1038/s41569-018-0145-2] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Transient receptor potential (TRP) channels are nonselective cationic channels that are generally Ca2+ permeable and have a heterogeneous expression in the heart. In the myocardium, TRP channels participate in several physiological functions, such as modulation of action potential waveform, pacemaking, conduction, inotropy, lusitropy, Ca2+ and Mg2+ handling, store-operated Ca2+ entry, embryonic development, mitochondrial function and adaptive remodelling. Moreover, TRP channels are also involved in various pathological mechanisms, such as arrhythmias, ischaemia-reperfusion injuries, Ca2+-handling defects, fibrosis, maladaptive remodelling, inherited cardiopathies and cell death. In this Review, we present the current knowledge of the roles of TRP channels in different cardiac regions (sinus node, atria, ventricles and Purkinje fibres) and cells types (cardiomyocytes and fibroblasts) and discuss their contribution to pathophysiological mechanisms, which will help to identify the best candidates for new therapeutic targets among the cardiac TRP family.
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Affiliation(s)
- Thomas Hof
- IHU-Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Pessac-Bordeaux, France.,INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France.,Université Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Sébastien Chaigne
- IHU-Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Pessac-Bordeaux, France.,INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France.,Université Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Alice Récalde
- IHU-Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Pessac-Bordeaux, France.,INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France.,Université Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Laurent Sallé
- Normandie Université, UNICAEN, EA4650, Signalisation, Électrophysiologie et Imagerie des Lésions d'Ischémie-Reperfusion Myocardique, Caen, France
| | - Fabien Brette
- IHU-Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Pessac-Bordeaux, France.,INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France.,Université Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Romain Guinamard
- Normandie Université, UNICAEN, EA4650, Signalisation, Électrophysiologie et Imagerie des Lésions d'Ischémie-Reperfusion Myocardique, Caen, France.
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15
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Tian C, Huang R, Tang F, Lin Z, Cheng N, Han X, Li S, Zhou P, Deng S, Huang H, Zhao H, Xu J, Li Z. Transient Receptor Potential Ankyrin 1 Contributes to Lysophosphatidylcholine-Induced Intracellular Calcium Regulation and THP-1-Derived Macrophage Activation. J Membr Biol 2019; 253:43-55. [PMID: 31820013 DOI: 10.1007/s00232-019-00104-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/26/2019] [Indexed: 12/21/2022]
Abstract
Lysophosphatidylcholine (LPC) is a major atherogenic lipid that stimulates an increase in mitochondrial reactive oxygen species (mtROS) and the release of cytokines under inflammasome activation. However, the potential receptors of LPC in macrophages are poorly understood. Members of the transient receptor potential (TRP) channel superfamily, which is crucially involved in transducing environmental irritant stimuli into nociceptor activity, are potential receptors of LPC. In this study, we investigated whether LPC can induce the activation of transient receptor potential ankyrin 1 (TRPA1), a member of the TRP superfamily. The functional expression of TRPA1 was first detected by quantitative real-time polymerase chain reaction (qRT-PCR), western blotting and calcium imaging in human acute monocytic leukemia cell line (THP-1)-derived macrophages. The mechanism by which LPC induces the activation of macrophages through TRPA1 was verified by cytoplasmic and mitochondrial calcium imaging, mtROS detection, a JC-1 assay, enzyme-linked immunosorbent assay, the CCK-8 assay and the lactate dehydrogenase (LDH) cytotoxic assay. LPC induced the activation of THP-1-derived macrophages via calcium influx, and this activation was suppressed by potent and selective inhibitors of TRPA1. These results indicated that TRPA1 can mediate mtROS generation, mitochondrial membrane depolarization, the secretion of IL-1β and cytotoxicity through cellular and mitochondrial Ca2+ influx in LPC-treated THP-1-derived macrophages. Therefore, the inhibition of TRPA1 may protect THP-1-derived macrophages against LPC-induced injury.
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Affiliation(s)
- Chao Tian
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China.,Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Rongqi Huang
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Feng Tang
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Zuoxian Lin
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Na Cheng
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China.,Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Xiaobo Han
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Shuai Li
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Peng Zhou
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Sihao Deng
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Hualin Huang
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Huifang Zhao
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China.,Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China
| | - Junjie Xu
- Guangzhou JYK Biotechnology Company Limited, Guangzhou, Guangdong, China
| | - Zhiyuan Li
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China. .,Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, #190 Kai-Yuan Road, Guangzhou Science Park, Guangzhou, 510530, China. .,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong, China. .,Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China. .,GZMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China.
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16
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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: 210] [Impact Index Per Article: 42.0] [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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17
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Wang Z, Ye D, Ye J, Wang M, Liu J, Jiang H, Xu Y, Zhang J, Chen J, Wan J. The TRPA1 Channel in the Cardiovascular System: Promising Features and Challenges. Front Pharmacol 2019; 10:1253. [PMID: 31680989 PMCID: PMC6813932 DOI: 10.3389/fphar.2019.01253] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 09/27/2019] [Indexed: 12/22/2022] Open
Abstract
The transient receptor potential ankyrin 1 (TRPA1) channel is a calcium-permeable nonselective cation channel in the plasma membrane that belongs to the transient receptor potential (TRP) channel superfamily. Recent studies have suggested that the TRPA1 channel plays an essential role in the development and progression of several cardiovascular conditions, such as atherosclerosis, heart failure, myocardial ischemia-reperfusion injury, myocardial fibrosis, arrhythmia, vasodilation, and hypertension. Activation of the TRPA1 channel has a protective effect against the development of atherosclerosis. Furthermore, TRPA1 channel activation elicits peripheral vasodilation and induces a biphasic blood pressure response. However, loss of channel expression or blockade of its activation suppressed heart failure, myocardial ischemia-reperfusion injury, myocardial fibrosis, and arrhythmia. In this paper, we review recent research progress on the TRPA1 channel and discuss its potential role in the cardiovascular system.
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Affiliation(s)
- Zhen Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Di Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jing Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jianfang Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Huimin Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yao Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jishou Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jiangbin Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
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18
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Ma S, Zhang Y, He K, Wang P, Wang DH. Knockout of TRPA1 exacerbates angiotensin II-induced kidney injury. Am J Physiol Renal Physiol 2019; 317:F623-F631. [PMID: 31339777 DOI: 10.1152/ajprenal.00069.2019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Macrophage-mediated inflammation plays a critical role in hypertensive kidney disease. Here, we investigated the role of transient receptor potential ankyrin 1 (TRPA1), a sensor of inflammation, in angiotensin II (ANG II)-induced renal injury. Subcutaneous infusion of ANG II (600 ng·min-1·kg-1) for 28 days was used to induce hypertension and renal injury in mice. The results showed that ANG II-induced hypertensive mice have decreased renal Trpa1 expression (P < 0.01), whereas ANG II receptor type 1a-deficient hypotensive mice have increased renal Trpa1 expression (P < 0.05) compared with their normotensive counterparts. ANG II induced similar elevations of systolic blood pressure in Trpa1-/- and wild-type (WT) mice but led to higher levels of blood urea nitrogen (P < 0.05), serum creatinine (P < 0.05), and renal fibrosis (P < 0.01) in Trpa1-/- mice than WT mice. Similarly, ANG II increased both CD68+/inducible nitric oxide synthase+ M1 and CD68+/arginase 1+ M2 macrophages in the kidneys of both Trpa1-/- and WT mice (all P < 0.01), with higher extents in Trpa1-/- mice (both P < 0.01). Compared with WT mice, Trpa1-/- mice had significantly increased expression levels of inflammatory cytokines and their receptors in the kidney. Cultured murine macrophages were stimulated with phorbol 12-myristate 13-acetate, which downregulated gene expression of TRPA1 (P < 0.01). A TRPA1 agonist, cinnamaldehyde, significantly inhibited phorbol 12-myristate 13-acetate-stimulated expression of IL-1β and chemokine (C-C motif) ligand 2 in macrophages, which were attenuated by pretreatment with a TRPA1 antagonist, HC030031. Furthermore, activation of TRPA1 with cinnamaldehyde induced apoptosis of macrophages. These findings suggest that TRPA1 may play a protective role in ANG II-induced renal injury, likely through inhibiting macrophage-mediated inflammation.
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Affiliation(s)
- Shuangtao Ma
- Division of Nanomedicine and Molecular Intervention, Department of Medicine, Michigan State University, East Lansing, Michigan
| | - Yan Zhang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Kecheng He
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Peijian Wang
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu, Sichuan, China
| | - Donna H Wang
- Division of Nanomedicine and Molecular Intervention, Department of Medicine, Michigan State University, East Lansing, Michigan
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19
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Cinnamaldehyde Ameliorates High-Glucose–Induced Oxidative Stress and Cardiomyocyte Injury Through Transient Receptor Potential Ankyrin 1. J Cardiovasc Pharmacol 2019; 74:30-37. [DOI: 10.1097/fjc.0000000000000679] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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20
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Thakore P, Earley S. Transient Receptor Potential Channels and Endothelial Cell Calcium Signaling. Compr Physiol 2019; 9:1249-1277. [PMID: 31187891 DOI: 10.1002/cphy.c180034] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The vascular endothelium is a broadly distributed and highly specialized organ. The endothelium has a number of functions including the control of blood vessels diameter through the production and release of potent vasoactive substances or direct electrical communication with underlying smooth muscle cells, regulates the permeability of the vascular barrier, stimulates the formation of new blood vessels, and influences inflammatory and thrombotic processes. Endothelial cells that make up the endothelium express a variety of cell-surface receptors and ion channels on the plasma membrane that are capable of detecting circulating hormones, neurotransmitters, oxygen tension, and shear stress across the vascular wall. Changes in these stimuli activate signaling cascades that initiate an appropriate physiological response. Increases in the global intracellular Ca2+ concentration and localized Ca2+ signals that occur within specialized subcellular microdomains are fundamentally important components of many signaling pathways in the endothelium. The transient receptor potential (TRP) channels are a superfamily of cation-permeable ion channels that act as a primary means of increasing cytosolic Ca2+ in endothelial cells. Consequently, TRP channels are vitally important for the major functions of the endothelium. In this review, we provide an in-depth discussion of Ca2+ -permeable TRP channels in the endothelium and their role in vascular regulation. © 2019 American Physiological Society. Compr Physiol 9:1249-1277, 2019.
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Affiliation(s)
- Pratish Thakore
- Department of Pharmacology, Center for Cardiovascular Research, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
| | - Scott Earley
- Department of Pharmacology, Center for Cardiovascular Research, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
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21
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Cornillot M, Giacco V, Hamilton NB. The role of TRP channels in white matter function and ischaemia. Neurosci Lett 2018; 690:202-209. [PMID: 30366011 DOI: 10.1016/j.neulet.2018.10.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 10/09/2018] [Accepted: 10/18/2018] [Indexed: 01/15/2023]
Abstract
Transient receptor potential (TRP) proteins are a large family of tetrameric non-selective cation channels that are widely expressed in the grey and white matter of the CNS, and are increasingly considered as potential therapeutic targets in brain disorders. Here we briefly review the evidence for TRP channel expression in glial cells and their possible role in both glial cell physiology and stroke. Despite their contribution to important functions, our understanding of the roles of TRP channels in glia is still in its infancy. The evidence reviewed here indicates that further investigation is needed to determine whether TRP channel inhibition can decrease damage or increase repair in stroke and other diseases affecting the white matter.
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Affiliation(s)
- Marion Cornillot
- Wolfson Centre for Age Related Disease, King's College London, Guy's Campus, London, SE1 1UL, United Kingdom
| | - Vincenzo Giacco
- Wolfson Centre for Age Related Disease, King's College London, Guy's Campus, London, SE1 1UL, United Kingdom
| | - Nicola B Hamilton
- Wolfson Centre for Age Related Disease, King's College London, Guy's Campus, London, SE1 1UL, United Kingdom.
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22
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Kee Z, Kodji X, Brain SD. The Role of Calcitonin Gene Related Peptide (CGRP) in Neurogenic Vasodilation and Its Cardioprotective Effects. Front Physiol 2018; 9:1249. [PMID: 30283343 PMCID: PMC6156372 DOI: 10.3389/fphys.2018.01249] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/17/2018] [Indexed: 12/05/2022] Open
Abstract
Calcitonin gene-related peptide (CGRP) is a highly potent vasoactive peptide released from sensory nerves, which is now proposed to have protective effects in several cardiovascular diseases. The major α-form is produced from alternate splicing and processing of the calcitonin gene. The CGRP receptor is a complex composed of calcitonin like receptor (CLR) and a single transmembrane protein, RAMP1. CGRP is a potent vasodilator and proposed to have protective effects in several cardiovascular diseases. CGRP has a proven role in migraine and selective antagonists and antibodies are now reaching the clinic for treatment of migraine. These clinical trials with antagonists and antibodies indicate that CGRP does not play an obvious role in the physiological control of human blood pressure. This review discusses the vasodilator and hypotensive effects of CGRP and the role of CGRP in mediating cardioprotective effects in various cardiovascular models and disorders. In models of hypertension, CGRP protects against the onset and progression of hypertensive states by potentially counteracting against the pro-hypertensive systems such as the renin-angiotensin-aldosterone system (RAAS) and the sympathetic system. With regards to its cardioprotective effects in conditions such as heart failure and ischaemia, CGRP-containing nerves innervate throughout cardiac tissue and the vasculature, where evidence shows this peptide alleviates various aspects of their pathophysiology, including cardiac hypertrophy, reperfusion injury, cardiac inflammation, and apoptosis. Hence, CGRP has been suggested as a cardioprotective, endogenous mediator released under stress to help preserve cardiovascular function. With the recent developments of various CGRP-targeted pharmacotherapies, in the form of CGRP antibodies/antagonists as well as a CGRP analog, this review provides a summary and a discussion of the most recent basic science and clinical findings, initiating a discussion on the future of CGRP as a novel target in various cardiovascular diseases.
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Affiliation(s)
- Zizheng Kee
- Section of Vascular Biology & Inflammation, BHF Centre for Cardiovascular Research, School of Cardiovascular Medicine and Sciences, King's College London, London, United Kingdom
| | - Xenia Kodji
- Section of Vascular Biology & Inflammation, BHF Centre for Cardiovascular Research, School of Cardiovascular Medicine and Sciences, King's College London, London, United Kingdom
| | - Susan D Brain
- Section of Vascular Biology & Inflammation, BHF Centre for Cardiovascular Research, School of Cardiovascular Medicine and Sciences, King's College London, London, United Kingdom
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Trans-cinnamaldehyde promotes nitric oxide release via the protein kinase-B/v-Akt murine thymoma viral oncogene -endothelial nitric oxide synthase pathway to alleviate hypertension in SHR. Cg-Leprcp/NDmcr rats. J TRADIT CHIN MED 2018. [DOI: 10.1016/s0254-6272(18)30886-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Relevance of TRPA1 and TRPM8 channels as vascular sensors of cold in the cutaneous microvasculature. Pflugers Arch 2017; 470:779-786. [PMID: 29164310 PMCID: PMC5942358 DOI: 10.1007/s00424-017-2085-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/16/2017] [Accepted: 10/30/2017] [Indexed: 01/22/2023]
Abstract
Cold exposure is directly related to skin conditions, such as frostbite. This is due to the cold exposure inducing a vasoconstriction to reduce cutaneous blood flow and protect against heat loss. However, a long-term constriction will cause ischaemia and potentially irreversible damage. We have developed techniques to elucidate the mechanisms of the vascular cold response. We focused on two ligand-gated transient receptor potential (TRP) channels, namely, the established “cold sensors” TRP ankyrin 1 (TRPA1) and TRP melastin (TRPM8). We used the anaesthetised mouse and measured cutaneous blood flow by laser speckle imaging. Two cold treatments were used. A generalised cold treatment was achieved through whole paw water immersion (10 °C for 5 min) and a localised cold treatment that will be potentially easier to translate to human studies was carried out on the mouse paw with a copper cold probe (0.85-cm diameter). The results show that TRPA1 and TRPM8 can each act as a vascular cold sensor to mediate the vasoconstrictor component of whole paw cooling as expected from our previous research. However, the local cooling-induced responses were only blocked when the TRPA1 and TRPM8 antagonists were given simultaneously. This suggests that this localised cold probe response requires both functional TRPA1 and TRPM8.
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TRPA1-FGFR2 binding event is a regulatory oncogenic driver modulated by miRNA-142-3p. Nat Commun 2017; 8:947. [PMID: 29038531 PMCID: PMC5643494 DOI: 10.1038/s41467-017-00983-w] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 08/08/2017] [Indexed: 01/09/2023] Open
Abstract
Recent evidence suggests that the ion channel TRPA1 is implicated in lung adenocarcinoma (LUAD), where its role and mechanism of action remain unknown. We have previously established that the membrane receptor FGFR2 drives LUAD progression through aberrant protein–protein interactions mediated via its C-terminal proline-rich motif. Here we report that the N-terminal ankyrin repeats of TRPA1 directly bind to the C-terminal proline-rich motif of FGFR2 inducing the constitutive activation of the receptor, thereby prompting LUAD progression and metastasis. Furthermore, we show that upon metastasis to the brain, TRPA1 gets depleted, an effect triggered by the transfer of TRPA1-targeting exosomal microRNA (miRNA-142-3p) from brain astrocytes to cancer cells. This downregulation, in turn, inhibits TRPA1-mediated activation of FGFR2, hindering the metastatic process. Our study reveals a direct binding event and characterizes the role of TRPA1 ankyrin repeats in regulating FGFR2-driven oncogenic process; a mechanism that is hindered by miRNA-142-3p. TRPA1 has been reported to contribute lung cancer adenocarcinoma (LUAD), but the mechanisms are unclear. Here the authors propose that TRPA1/FGFR2 interaction is functional in LUAD and show that astrocytes oppose brain metastasis by mediating the downregulation of TRPA1 through exosome-delivered miRNA-142-3p.
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Wilde E, Aubdool AA, Thakore P, Baldissera L, Alawi KM, Keeble J, Nandi M, Brain SD. Tail-Cuff Technique and Its Influence on Central Blood Pressure in the Mouse. J Am Heart Assoc 2017; 6:JAHA.116.005204. [PMID: 28655735 PMCID: PMC5669161 DOI: 10.1161/jaha.116.005204] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Background Reliable measurement of blood pressure in conscious mice is essential in cardiovascular research. Telemetry, the “gold‐standard” technique, is invasive and expensive and therefore tail‐cuff, a noninvasive alternative, is widely used. However, tail‐cuff requires handling and restraint during measurement, which may cause stress affecting blood pressure and undermining reliability of the results. Methods and Results C57Bl/6J mice were implanted with radio‐telemetry probes to investigate the effects of the steps of the tail‐cuff technique on central blood pressure, heart rate, and temperature. This included comparison of handling techniques, operator's sex, habituation, and influence of hypertension induced by angiotensin II. Direct comparison of measurements obtained by telemetry and tail‐cuff were made in the same mouse. The results revealed significant increases in central blood pressure, heart rate, and core body temperature from baseline following handling interventions without significant difference among the different handling technique, habituation, or sex of the investigator. Restraint induced the largest and sustained increase in cardiovascular parameters and temperature. The tail‐cuff readings significantly underestimated those from simultaneous telemetry recordings; however, “nonsimultaneous” telemetry, obtained in undisturbed mice, were similar to tail‐cuff readings obtained in undisturbed mice on the same day. Conclusions This study reveals that the tail‐cuff technique underestimates the core blood pressure changes that occur simultaneously during the restraint and measurement phases. However, the measurements between the 2 techniques are similar when tail‐cuff readings are compared with telemetry readings in the nondisturbed mice. The differences between the simultaneous recordings by the 2 techniques should be recognized by researchers.
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Affiliation(s)
- Elena Wilde
- Vascular Biology and Inflammation Section, BHF Cardiovascular Centre of Research Excellence, Cardiovascular Division, King's College London, London, United Kingdom
| | - Aisah A Aubdool
- Vascular Biology and Inflammation Section, BHF Cardiovascular Centre of Research Excellence, Cardiovascular Division, King's College London, London, United Kingdom
| | - Pratish Thakore
- Pharmaceutical Sciences Division, King's College London, London, United Kingdom
| | - Lineu Baldissera
- Vascular Biology and Inflammation Section, BHF Cardiovascular Centre of Research Excellence, Cardiovascular Division, King's College London, London, United Kingdom
| | - Khadija M Alawi
- Vascular Biology and Inflammation Section, BHF Cardiovascular Centre of Research Excellence, Cardiovascular Division, King's College London, London, United Kingdom
| | - Julie Keeble
- Pharmaceutical Sciences Division, King's College London, London, United Kingdom
| | - Manasi Nandi
- Pharmaceutical Sciences Division, King's College London, London, United Kingdom
| | - Susan D Brain
- Vascular Biology and Inflammation Section, BHF Cardiovascular Centre of Research Excellence, Cardiovascular Division, King's College London, London, United Kingdom
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Aubdool AA, Thakore P, Argunhan F, Smillie SJ, Schnelle M, Srivastava S, Alawi KM, Wilde E, Mitchell J, Farrell-Dillon K, Richards DA, Maltese G, Siow RC, Nandi M, Clark JE, Shah AM, Sams A, Brain SD. A Novel α-Calcitonin Gene-Related Peptide Analogue Protects Against End-Organ Damage in Experimental Hypertension, Cardiac Hypertrophy, and Heart Failure. Circulation 2017; 136:367-383. [PMID: 28446517 PMCID: PMC5519346 DOI: 10.1161/circulationaha.117.028388] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 04/17/2017] [Indexed: 12/20/2022]
Abstract
Supplemental Digital Content is available in the text. Research into the therapeutic potential of α-calcitonin gene–related peptide (α-CGRP) has been limited because of its peptide nature and short half-life. Here, we evaluate whether a novel potent and long-lasting (t½ ≥7 hours) acylated α-CGRP analogue (αAnalogue) could alleviate and reverse cardiovascular disease in 2 distinct murine models of hypertension and heart failure in vivo.
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Affiliation(s)
- Aisah A Aubdool
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Pratish Thakore
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Fulye Argunhan
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Sarah-Jane Smillie
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Moritz Schnelle
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Salil Srivastava
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Khadija M Alawi
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Elena Wilde
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Jennifer Mitchell
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Keith Farrell-Dillon
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Daniel A Richards
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Giuseppe Maltese
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Richard C Siow
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Manasi Nandi
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - James E Clark
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Ajay M Shah
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Anette Sams
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.)
| | - Susan D Brain
- From Cardiovascular Division, BHF Centre of Research Excellence and Centre of Integrative Biomedicine, King's College London, United Kingdom (A.A.A., F.A., S.-J.S., S.S., K.M.A., E.W., J.M., K.F.-D., G.M., R.C.S., S.D.B.); Institute of Pharmaceutical Sciences, King's College London, United Kingdom (P.T., M.N.); Cardiovascular Division, BHF Centre of Research Excellence, James Black Centre, King's College London, United Kingdom (M.S., D.A.R., A.M.S.); Department of Cardiology and Pneumology, Medical Center Goettingen, Germany (M.S.); Cardiovascular Division, BHF Centre of Research Excellence, Rayne Institute, St Thomas' Hospital, King's College London, United Kingdom (J.E.C.); Novo Nordisk A/S, Diabetic Complications Biology, Novo Nordisk Park, Maaloev, Denmark (A.S.); and Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet, Denmark (A.S.).
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Skerratt S. Recent Progress in the Discovery and Development of TRPA1 Modulators. PROGRESS IN MEDICINAL CHEMISTRY 2017; 56:81-115. [PMID: 28314413 DOI: 10.1016/bs.pmch.2016.11.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
TRPA1 is a well-validated therapeutic target in areas of high unmet medical need that include pain and respiratory disorders. The human genetic rationale for TRPA1 as a pain target is provided by a study describing a rare gain-of-function mutation in TRPA1, causing familial episodic pain syndrome. There is a growing interest in the TRPA1 field, with many pharmaceutical companies reporting the discovery of TRPA1 chemical matter; however, GRC 17536 remains to date the only TRPA1 antagonist to have completed Phase IIa studies. A key issue in the progression of TRPA1 programmes is the identification of high-quality orally bioavailable molecules. Most published TRPA1 ligands are commonly not suitable for clinical progression due to low lipophilic efficiency and/or poor absorption, distribution, metabolism, excretion and pharmaceutical properties. The recent TRPA1 cryogenic electron microscopy structure from the Cheng and Julius labs determined the structure of full-length human TRPA1 at up to 4Å resolution in the presence of TRPA1 ligands. This ground-breaking science paves the way to enable structure-based drug design within the TRPA1 field.
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Affiliation(s)
- S Skerratt
- Convergence (a Biogen Company), Cambridge, United Kingdom
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Buntinx L, Chang L, Amin A, Morlion B, de Hoon J. Development of an in vivo target-engagement biomarker for TRPA1 antagonists in humans. Br J Clin Pharmacol 2016; 83:603-611. [PMID: 27685892 DOI: 10.1111/bcp.13143] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 09/19/2016] [Accepted: 09/26/2016] [Indexed: 01/12/2023] Open
Abstract
AIM To develop a non-invasive, safe and reproducible target-engagement biomarker for future TRPA1 antagonists in healthy volunteers. METHODS Dose finding (n = 11): 3%, 10%, and 30% cinnamaldehyde (CA) and placebo (= vehicle) was topically applied on the right forearm. One-way ANOVA with post-hoc Bonferroni was used to compare between doses. Reproducibility: 10% CA doses were topically applied during one visit on both arms (n = 10) or during two visits (n = 23) separated by a washout period of 7 days. CA-induced dermal blood flow (DBF) was assessed by laser Doppler imaging (LDI) at baseline and at 10, 20, 30, 40 and 50 min post-CA. Paired t-test was used to compare between arms or visits. Concordance correlation coefficient (CCC) was calculated to assess reproducibility. Data are expressed as percent change from baseline (mean ± 95% CI). RESULTS All three doses increased DBF compared to vehicle at all time-points, with the maximum response at 10-20 min post-CA. Dose response was found when comparing AUC0-50min of 30% CA (51 364 ± 8475%*min) with 10% CA (32 239 ± 8034%*min, P = 0.03) and 3% CA (30 226 ± 11 958%*min, P = 0.015). 10% CA was chosen as an effective and safe dose. DBF response to 10% CA was found to be reproducible between arms (AUC0-50min , CCC = 0.91) and visits (AUC0-50min , CCC = 0.83). Based on sample size calculations, this model allows a change in CA-induced DBF of 30-50% to be detected between two independent groups of maximum 10-15 subjects with 80% power. CONCLUSIONS Evaluation of CA-induced changes in DBF offers a safe, non-invasive and reproducible target-engagement biomarker in vivo in humans to evaluate TRPA1 antagonists.
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Affiliation(s)
- Linde Buntinx
- Centre for Clinical Pharmacology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Lin Chang
- Centre for Clinical Pharmacology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Aasim Amin
- Centre for Clinical Pharmacology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Bart Morlion
- Department of Cardiovascular Sciences, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Jan de Hoon
- Centre for Clinical Pharmacology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
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Blocking TRPA1 in Respiratory Disorders: Does It Hold a Promise? Pharmaceuticals (Basel) 2016; 9:ph9040070. [PMID: 27827953 PMCID: PMC5198045 DOI: 10.3390/ph9040070] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 09/23/2016] [Accepted: 09/28/2016] [Indexed: 12/22/2022] Open
Abstract
Transient Receptor Potential Ankyrin 1 (TRPA1) ion channel is expressed abundantly on the C fibers that innervate almost entire respiratory tract starting from oral cavity and oropharynx, conducting airways in the trachea, bronchi, terminal bronchioles, respiratory bronchioles and upto alveolar ducts and alveoli. Functional presence of TRPA1 on non-neuronal cells got recognized recently. TRPA1 plays a well-recognized role of “chemosensor”, detecting presence of exogenous irritants and endogenous pro-inflammatory mediators that are implicated in airway inflammation and sensory symptoms like chronic cough, asthma, chronic obstructive pulmonary disease (COPD), allergic rhinitis and cystic fibrosis. TRPA1 can remain activated chronically due to elevated levels and continued presence of such endogenous ligands and pro-inflammatory mediators. Several selective TRPA1 antagonists have been tested in animal models of respiratory disease and their performance is very promising. Although there is no TRPA1 antagonist in advanced clinical trials or approved on market yet to treat respiratory diseases, however, limited but promising evidences available so far indicate likelihood that targeting TRPA1 may present a new therapy in treatment of respiratory diseases in near future. This review will focus on in vitro, animal and human evidences that strengthen the proposed role of TRPA1 in modulation of specific airway sensory responses and also on preclinical and clinical progress of selected TRPA1 antagonists.
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Aubdool AA, Kodji X, Abdul-Kader N, Heads R, Fernandes ES, Bevan S, Brain SD. TRPA1 activation leads to neurogenic vasodilatation: involvement of reactive oxygen nitrogen species in addition to CGRP and NO. Br J Pharmacol 2016; 173:2419-33. [PMID: 27189253 PMCID: PMC4945766 DOI: 10.1111/bph.13519] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 05/02/2016] [Accepted: 05/05/2016] [Indexed: 01/08/2023] Open
Abstract
Background and Purpose Transient receptor potential ankyrin‐1 (TRPA1) activation is known to mediate neurogenic vasodilatation. We investigated the mechanisms involved in TRPA1‐mediated peripheral vasodilatation in vivo using the TRPA1 agonist cinnamaldehyde. Experimental Approach Changes in vascular ear blood flow were measured in anaesthetized mice using laser Doppler flowmetry. Key Results Topical application of cinnamaldehyde to the mouse ear caused a significant increase in blood flow in the skin of anaesthetized wild‐type (WT) mice but not in TRPA1 knockout (KO) mice. Cinnamaldehyde‐induced vasodilatation was inhibited by the pharmacological blockade of the potent microvascular vasodilator neuropeptide CGRP and neuronal NOS‐derived NO pathways. Cinnamaldehyde‐mediated vasodilatation was significantly reduced by treatment with reactive oxygen nitrogen species (RONS) scavenger such as catalase and the SOD mimetic TEMPOL, supporting a role of RONS in the downstream vasodilator TRPA1‐mediated response. Co‐treatment with a non‐selective NOS inhibitor L‐NAME and antioxidant apocynin further inhibited the TRPA1‐mediated vasodilatation. Cinnamaldehyde treatment induced the generation of peroxynitrite that was blocked by the peroxynitrite scavenger FeTPPS and shown to be dependent on TRPA1, as reflected by an increase in protein tyrosine nitration in the skin of WT, but not in TRPA1 KO mice. Conclusion and Implications This study provides in vivo evidence that TRPA1‐induced vasodilatation mediated by cinnamaldehyde requires neuronal NOS‐derived NO, in addition to the traditional neuropeptide component. A novel role of peroxynitrite is revealed, which is generated downstream of TRPA1 activation by cinnamaldehyde. This mechanistic pathway underlying TRPA1‐mediated vasodilatation may be important in understanding the role of TRPA1 in pathophysiological situations.
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Affiliation(s)
- Aisah A Aubdool
- Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
| | - Xenia Kodji
- Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
| | - Nayaab Abdul-Kader
- Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
| | - Richard Heads
- Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
| | - Elizabeth S Fernandes
- Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK.,Programa de Pós-graduação, Universidade CEUMA, São Luís, MA, Brazil
| | - Stuart Bevan
- Wolfson Centre for Age Related Diseases, King's College London, London, UK
| | - Susan D Brain
- Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
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Chen J, Hackos DH. TRPA1 as a drug target--promise and challenges. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2015; 388:451-63. [PMID: 25640188 PMCID: PMC4359712 DOI: 10.1007/s00210-015-1088-3] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 01/12/2015] [Indexed: 12/25/2022]
Abstract
The transient receptor potential ankyrin 1 (TRPA1) channel is a nonselective cation channel belonging to the superfamily of transient receptor potential (TRP) channels. It is predominantly expressed in sensory neurons and serves as an irritant sensor for a plethora of electrophilic compounds. Recent studies suggest that TRPA1 is involved in pain, itch, and respiratory diseases, and TRPA1 antagonists have been actively pursued as therapeutic agents. Here, we review the recent progress, unsettled issues, and challenges in TRPA1 research and drug discovery.
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Affiliation(s)
- Jun Chen
- Department of Biochemical and Cellular Pharmacology, Genentech, South San Francisco, CA 94080 USA
| | - David H. Hackos
- Department of Neuroscience, Genentech, South San Francisco, CA 94080 USA
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