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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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Tipcome K, Watanapa WB, Ruamyod K. Hesperetin Relaxes Depolarizing Contraction in Human Umbilical Vein by Inhibiting L-Type Ca 2+ Channel. Chin J Integr Med 2024:10.1007/s11655-024-3713-1. [PMID: 38236522 DOI: 10.1007/s11655-024-3713-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2023] [Indexed: 01/19/2024]
Abstract
OBJECTIVE To study hesperetin-induced vasorelaxation after depolarizing contraction in human umbilical veins (HUVs) to elucidate the role of L-type Ca2+ channel (LTCC) and related signaling pathway. METHODS Isometric tension recording was performed in HUV rings pre-contracted with K+. Hesperetin relaxing mechanism was investigated using a LTCC opener (BayK8644) and blockers of cyclic nucleotides and phosphodiesterases (PDEs). Whole-cell patch-clamping in A7r5 cells, a rat vascular smooth muscle cell line, was performed to study the effect of hesperetin on LTCC current. RESULTS After depolarizing precontraction, hesperetin induced HUV relaxation concentration-dependently and endothelium-independently; 1 mmol/L hesperetin reduced denuded HUV ring tension by 68.7% ± 4.3% compared to matching vehicle, osmolality, and time controls (P<0.0001). Importantly, hesperetin competitively inhibited BayK8644-induced contraction, shifting the half maximal effective concentration of BayK8644 response from 1.08 nmol/L [95% confidence interval (CI) 0.49-2.40] in vehicle control to 11.30 nmol/L (95% CI 5.45-23.41) in hesperetin (P=0.0001). Moreover, hesperetin elicited further vasorelaxation in denuded HUV rings pretreated with inhibitors of soluble guanylyl cyclase, adenylyl cyclase, PDE3, PDE4, and PDE5 (P<0.01), while rings pretreated with PDE1 inhibitors could not be relaxed by hesperetin (P>0.05). However, simultaneously applying inhibitors of soluble guanylyl cyclase and adenylyl cyclase could not inhibit hesperetin's effect (P>0.05). In whole-cell patch-clamping, hesperetin rapidly decreased LTCC current in A7r5 cells to 66.7% ± 5.8% (P=0.0104). CONCLUSIONS Hesperetin diminishes depolarizing contraction of human vascular smooth muscle through inhibition of LTCC, and not cyclic nucleotides nor PDEs. Our evidence supports direct LTCC interaction and provides additional basis for the use of hesperetin and its precursor hesperidin as vasodilators and may lead to future vasodilator drug development as a treatment alternative for cardiovascular diseases.
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Affiliation(s)
- Kritsana Tipcome
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Wattana B Watanapa
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
| | - Katesirin Ruamyod
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Oz M, Lorke DE, Howarth FC. Transient receptor potential vanilloid 1 (TRPV1)-independent actions of capsaicin on cellular excitability and ion transport. Med Res Rev 2023. [PMID: 36916676 DOI: 10.1002/med.21945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 01/17/2023] [Accepted: 02/26/2023] [Indexed: 03/15/2023]
Abstract
Capsaicin is a naturally occurring alkaloid derived from chili pepper that is responsible for its hot pungent taste. Capsaicin is known to exert multiple pharmacological actions, including analgesia, anticancer, anti-inflammatory, antiobesity, and antioxidant effects. The transient receptor potential vanilloid subfamily member 1 (TRPV1) is the main receptor mediating the majority of the capsaicin effects. However, numerous studies suggest that the TRPV1 receptor is not the only target for capsaicin. An increasing number of studies indicates that capsaicin, at low to mid µM ranges, not only indirectly through TRPV1-mediated Ca2+ increases, but also directly modulates the functions of voltage-gated Na+ , K+ , and Ca2+ channels, as well as ligand-gated ion channels and other ion transporters and enzymes involved in cellular excitability. These TRPV1-independent effects are mediated by alterations of the biophysical properties of the lipid membrane and subsequent modulation of the functional properties of ion channels and by direct binding of capsaicin to the channels. The present study, for the first time, systematically categorizes this diverse range of non-TRPV1 targets and discusses cellular and molecular mechanisms mediating TRPV1-independent effects of capsaicin in excitable, as well as nonexcitable cells.
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Affiliation(s)
- Murat Oz
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Safat, Kuwait
| | - Dietrich E Lorke
- Department of Anatomy and Cellular Biology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates.,Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Frank C Howarth
- Department of Physiology, College of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates
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Does sex influence near-infrared spectroscopy-derived indicators of microvascular reactivity and the response to acute dietary capsaicin. Microvasc Res 2023; 145:104436. [PMID: 36113667 DOI: 10.1016/j.mvr.2022.104436] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/28/2022] [Accepted: 09/10/2022] [Indexed: 02/03/2023]
Abstract
Endothelial dysfunction is associated with cardiovascular disease development, nitric oxide (NO) deficiencies, and may be limb or sex-specific. Prior in vitro work indicated that the transient receptor potential vanilloid channel-1 (TRPV1) is expressed in human arteries and the TRPV1 agonist capsaicin alters vasodilation in an endothelium-dependent manner; however, it is unknown if this translates in vivo or is limb or sex-dependent. Therefore, we sought to determine if there was limb or sex-specificity in the effect of capsaicin on microvascular function using near-infrared spectroscopy (NIRS)-derived tissue oxygen saturation (StO2) reperfusion slope. In a blinded placebo-controlled crossover design, 45 young males (M: n = 25) and females (F: n = 20), the reperfusion slopes of the forearm and quadriceps were assessed, and a urine sample obtained to assay for nitrate/nitrite (NOx) concentrations and antioxidant capacity after acutely ingesting placebo or capsaicin. Under placebo, females had greater reperfusion rates in both the forearm (M: 0.44 ± 0.24 vs. F: 0.98 ± 0.46 %/sec; p = 0.002, d = -1.50) and quadricep (M: 0.86 ± 0.31 vs. F: 1.17 ± 0.43 %/sec; p = 0.010, d = -0.85). Capsaicin decreased microvascular responsiveness in the forearm of females (placebo: 0.98 ± 0.45 vs. capsaicin: 0.84 ± 0.45 %/sec) as compared to males (placebo: 0.45 ± 0.24 vs. capsaicin: 0.38 ± 0.16 %/sec, interaction p < 0.001, η2 = 0.475). There was a sex*treatment interaction for NOx concentrations, where males increased (placebo: 21.13 ± 12.83 vs. capsaicin: 23.82 ± 13.34 μM), while females decreased (placebo: 22.78 ± 14.40 vs. capsaicin: 14.43 ± 10.01 μM; p = 0.037, η2 = 0.042). Using NIRS to assess microvascular function, there is apparent limb and sex-specificity, and, for the first-time, document that acute oral capsaicin alters reperfusion slope in a sexually divergent manner.
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Beneficial effects of dietary capsaicin in gastrointestinal health and disease. Exp Cell Res 2022; 417:113227. [DOI: 10.1016/j.yexcr.2022.113227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/12/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022]
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An Z, Zhang X, Gao S, Zhou D, Riaz U, Abdelrahman M, Hua G, Yang L. Effects of Capsicum Oleoresin Supplementation on Lactation Performance, Plasma Metabolites, and Nutrient Digestibility of Heat Stressed Dairy Cow. Animals (Basel) 2022; 12:ani12060797. [PMID: 35327194 PMCID: PMC8944809 DOI: 10.3390/ani12060797] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/19/2022] [Accepted: 03/21/2022] [Indexed: 11/16/2022] Open
Abstract
The present study investigates the effect of Capsicum oleoresin (CAP) supplementation on the dry matter intake, milk performance, plasma metabolites, and nutrient digestibility of dairy cows during the summer. Thirty-two lactating Holstein dairy cows (n = 32) were randomly divided into four groups. The CAP was dissolved in water and added to the total mixed ration with graded levels of CAP (0, 20, 40, and 80 mg/kg of dry matter). The trial period consisted of seven days for adaptation and thirty days for sampling. Data were analyzed using the MIXED and GLM procedure SAS. The linear and quadratic effects were tested. The milk yield, milk fat, and milk urea nitrogen increased linearly with the dietary addition of CAP (p < 0.05). The dry matter intake increased linearly in the 20CAP group (p < 0.05). Additionally, the 4% fat-corrected milk, energy-corrected milk, milk fat yield, and milk fat to milk protein ratio increased quadratically (p < 0.05), while the rectal temperature decreased quadratically (p < 0.05). Serum total cholesterol and non-esterified fatty acids increased linearly (p < 0.05); glucose and β-hydroxybutyrate tended to increase quadratically with the dietary addition of CAP (p = 0.05). Meanwhile, CAP supplementation did not affect the milk protein yield, blood concentration of triglyceride, insulin, lipopolysaccharide, immunoglobulin G, or heat shock protein 70 expression level (p > 0.05). In addition, nutrient digestibility was comparable among groups (p > 0.05). These findings indicated that CAP supplementation could enhance the lactation performance of dairy cows during the summer.
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Affiliation(s)
- Zhigao An
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
| | - Xinxin Zhang
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
| | - Shanshan Gao
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
| | - Di Zhou
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
| | - Umair Riaz
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Mohamed Abdelrahman
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
- Animal Production Department, Faculty of Agriculture, Assuit University, Asyut 71515, Egypt
| | - Guohua Hua
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
- Hubei Engineering Research Center in Buffalo Breeding and Products, Wuhan 430070, China
| | - Liguo Yang
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.A.); (X.Z.); (S.G.); (D.Z.); (U.R.); (M.A.); (G.H.)
- Hubei Engineering Research Center in Buffalo Breeding and Products, Wuhan 430070, China
- Correspondence:
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Machado FB, Lopes de Macêdo IY, Campos HM, Gonçalves Moreno EK, Batista Silva MF, Raimundo de Oliveira Neto J, Feitosa Ramalho RR, Nascimento ADR, Vaz BG, Carlos da Cunha L, Ghedini PC, Diculescu VC, de Souza Gil E. Antioxidant activity of thirty-six peppers varieties and vasorelaxant of selected varieties. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.100989] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abramavičius S, Volkevičiūtė A, Tunaitytė A, Venslauskas M, Bubulis A, Bajoriūnas V, Stankevičius E. Low-Frequency (20 kHz) Ultrasonic Modulation of Drug Action. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:3017-3031. [PMID: 32768323 DOI: 10.1016/j.ultrasmedbio.2020.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 04/27/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
We tested the effect of low-frequency ultrasound (LUS, 20 kHz, 4 W/cm2) on the function of rat mesentery and human pulmonary arteries with wire myography. The vessels were induced to contract with either noradrenaline or physiologic saline solution (PSS) with a high potassium concentration (KPSS) and then incubated with capsaicin (2.1 × 10-7 M, TRPV1 [transient receptor potential vanilloid 1] activator), dopamine (1 × 10-4 M, dopamine and α2-receptor activator), or fenoldopam (dopamineA1 receptor agonist, 1 × 10-4 M) with and without glibenclamide (1 μM, KATP [adenosine triphosphate {sensitive potassium channel (ATP)}-sensitive potassium channel] inhibitor and α2-receptor modulator), and insonated. Vessels were incubated in Ca2+-free PSS and induced to contract with added extracellular Ca2+ and noradrenaline. Pulmonary arteries were induced to contract with KPSS and dopamine. Then the vessels were insonated. LUS inhibited the influx of external Ca2+, inhibited the dopamine-induced vasoconstriction in the KPSS (glibenclamide reversible), reduced the capsaicin-induced vasorelaxation, increased the gentamicin-induced vasorelaxation and increased the dopamine-induced contraction in the KPSS in human pulmonary arteries.
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Affiliation(s)
- Silvijus Abramavičius
- Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, Kaunas, Lithuania; Laboratory of Preclinical Drug Investigation, Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
| | - Augusta Volkevičiūtė
- Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, Kaunas, Lithuania; Laboratory of Preclinical Drug Investigation, Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Agilė Tunaitytė
- Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, Kaunas, Lithuania; Laboratory of Preclinical Drug Investigation, Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Mantas Venslauskas
- Institute of Mechatronics, Kaunas University of Technology, Kaunas, Lithuania
| | - Algimantas Bubulis
- Institute of Mechatronics, Kaunas University of Technology, Kaunas, Lithuania
| | - Vytis Bajoriūnas
- Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, Kaunas, Lithuania; Laboratory of Preclinical Drug Investigation, Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Edgaras Stankevičius
- Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, Kaunas, Lithuania; Laboratory of Preclinical Drug Investigation, Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Darmani NA, Henry DA, Zhong W, Chebolu S. Ultra-low doses of the transient receptor potential vanilloid 1 agonist, resiniferatoxin, prevents vomiting evoked by diverse emetogens in the least shrew (Cryptotis parva). Behav Pharmacol 2020; 31:3-14. [PMID: 31503071 DOI: 10.1097/fbp.0000000000000499] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Published studies have shown that the transient receptor potential vanilloid 1 (TRPV1) receptor agonist, resiniferatoxin (RTX), has pro and antiemetic effects. RTX can suppress vomiting evoked by a variety of nonselective emetogens such as copper sulfate and cisplatin in several vomit-competent species. In the least shrew, we have already demonstrated that combinations of ultra-low doses of RTX and low doses of the cannabinoid CB1/2 receptor agonist delta-9-tetrahydrocannabinol (Δ-THC) produce additive antiemetic effects against cisplatin-evoked vomiting. In the current study, we investigated the broad-spectrum antiemetic potential of very low nonemetic doses of RTX against a diverse group of specific emetogens including selective and nonselective agonists of serotonergic 5-hydroxytrptamine (5-HT3) receptor (5-HT and 2-Me-5-HT), dopaminergic D2 receptor (apomorphine and quinpirole), cholinergic M1 receptor (pilocarpine and McN-A-343), as well as the selective substance P neurokinin NK1 receptor agonist GR73632, the selective L-Type calcium channel agonist FPL64176, and the sarcoplasmic endoplasmic reticulum calcium ATPase (SERCA) inhibitor thapsigargin. When administered subcutaneously, ultra-low (0.01 µg/kg) to low (5.0 µg/kg) doses of RTX suppressed vomiting induced by the aforementioned emetogens in a dose-dependent fashion with 50% inhibitory dose values ranging from 0.01 to 1.26 µg/kg. This study is the first to demonstrate that low nanomolar nonemetic doses of RTX have the capacity to completely abolish vomiting caused by diverse receptor specific emetogens in the least shrew model of emesis.
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Affiliation(s)
- Nissar A Darmani
- Department of Basic Medical Sciences, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California, USA
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Andrade F, Rangel-Sandoval C, Rodríguez-Hernández A, López-Dyck E, Elizalde A, Virgen-Ortiz A, Bonales-Alatorre E, Valencia-Cruz G, Sánchez-Pastor E. Capsaicin Causes Vasorelaxation of Rat Aorta through Blocking of L-type Ca 2+ Channels and Activation of CB 1 Receptors. Molecules 2020; 25:molecules25173957. [PMID: 32872656 PMCID: PMC7504815 DOI: 10.3390/molecules25173957] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/21/2020] [Accepted: 08/29/2020] [Indexed: 01/21/2023] Open
Abstract
The aim of this work was to determine whether Capsaicin may exert a vascular regulation through the activation of CB1 and/or CB2 receptors causing vasorelaxation in the rat aorta. Our results show the location of TRPV1 mainly in the endothelial and smooth muscle cells membrane. Nevertheless, Capsaicin caused vasorelaxation of this artery through a mechanism independent of TRPV1, since the specific antagonists Capsazepine and SB-366791 did not block the effect of Capsaicin. Because the significant expression of CB1 and CB2 receptors has been previously reported in the rat aorta, we used antagonists for these two receptors prior to the addition of Capsaicin. In these experiments, we found that the inhibition of CB1 using AM281, decreases the vasorelaxant effect caused by Capsaicin. On the other hand, the vasorelaxant effect is not altered in the presence of the CB2 receptor antagonist AM630. Furthermore, a partial decrease of the effect of Capsaicin was also seen when L-type calcium channels are blocked. A complete block of Capsaicin-induced vasorelaxation was achieved using a combination of Verapamil and AM281. In accordance to our results, Capsaicin-induced vasorelaxation of the rat aorta is neither dependent of TRPV1 or CB2 receptors, but rather it is strongly suggested that a tandem mechanism between inactivation of L-type calcium channels and the direct activation of CB1 receptors is involved. These findings are supported by CB1 docking simulation which predicted a binding site on CB1 receptors for Capsaicin.
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Affiliation(s)
- Felipa Andrade
- National Technological Institute of Mexico/Technological Institute of Colima, Avenida Tecnológico No. 1, CP 28976 Villa de Álvarez, Colima, Mexico;
| | - Cinthia Rangel-Sandoval
- University Center for Biomedical Research, University of Colima, Apdo. Postal No. 11, CP 28040 Colima, Colima, Mexico; (C.R.-S.); (A.E.); (A.V.-O.); (E.B.-A.); (G.V.-C.)
| | | | - Evelyn López-Dyck
- State University of Sonora, Navojoa Academic Unit. Blvd. Manlio Fabio Beltrones 810, CP 85875 Navojoa, Sonora, Mexico;
| | - Alejandro Elizalde
- University Center for Biomedical Research, University of Colima, Apdo. Postal No. 11, CP 28040 Colima, Colima, Mexico; (C.R.-S.); (A.E.); (A.V.-O.); (E.B.-A.); (G.V.-C.)
| | - Adolfo Virgen-Ortiz
- University Center for Biomedical Research, University of Colima, Apdo. Postal No. 11, CP 28040 Colima, Colima, Mexico; (C.R.-S.); (A.E.); (A.V.-O.); (E.B.-A.); (G.V.-C.)
| | - Edgar Bonales-Alatorre
- University Center for Biomedical Research, University of Colima, Apdo. Postal No. 11, CP 28040 Colima, Colima, Mexico; (C.R.-S.); (A.E.); (A.V.-O.); (E.B.-A.); (G.V.-C.)
| | - Georgina Valencia-Cruz
- University Center for Biomedical Research, University of Colima, Apdo. Postal No. 11, CP 28040 Colima, Colima, Mexico; (C.R.-S.); (A.E.); (A.V.-O.); (E.B.-A.); (G.V.-C.)
| | - Enrique Sánchez-Pastor
- University Center for Biomedical Research, University of Colima, Apdo. Postal No. 11, CP 28040 Colima, Colima, Mexico; (C.R.-S.); (A.E.); (A.V.-O.); (E.B.-A.); (G.V.-C.)
- Correspondence: ; Tel.: +52 (312) 31-611-29
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Sinharoy P, Bratz IN, Sinha S, Showalter LE, Andrei SR, Damron DS. TRPA1 and TRPV1 contribute to propofol-mediated antagonism of U46619-induced constriction in murine coronary arteries. PLoS One 2017; 12:e0180106. [PMID: 28644897 PMCID: PMC5482493 DOI: 10.1371/journal.pone.0180106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 06/09/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Transient receptor potential (TRP) ion channels have emerged as key components contributing to vasoreactivity. Propofol, an anesthetic is associated with adverse side effects including hypotension and acute pain upon infusion. Our objective was to determine the extent to which TRPA1 and/or TRPV1 ion channels are involved in mediating propofol-induced vasorelaxation of mouse coronary arterioles in vitro and elucidate the potential cellular signal transduction pathway by which this occurs. METHODS Hearts were excised from anesthetized mice and coronary arterioles were dissected from control C57Bl/6J, TRPA1-/-, TRPV1-/- and double-knockout mice (TRPAV-/-). Isolated microvessels were cannulated and secured in a temperature-controlled chamber and allowed to equilibrate for 1 hr. Vasoreactivity studies were performed in microvessels pre-constricted with U46619 to assess the dose-dependent relaxation effects of propofol on coronary microvascular tone. RESULTS Propofol-induced relaxation was unaffected in vessels obtained from TRPV1-/- mice, markedly attenuated in pre-constricted vessels obtained from TRPA1-/- mice and abolished in vessels obtained from TRPAV-/- mice. Furthermore, NOS inhibition with L-NAME or endothelium denuding abolished the proporfol-induced depressor response in pre-constricted vessels obtained from all mice. In the absence of L-NAME, BKCa inhibition with penitrem A markedly attenuated propofol-mediated relaxation in vessels obtained from wild-type mice and to a lesser extent in vessels obtained from TRPV1-/-, mice with no effect in vessels obtained from TRPA1-/- or TRPAV-/- mice. CONCLUSIONS TRPA1 and TRPV1 appear to contribute to the propofol-mediated antagonism of U46619-induced constriction in murine coronary microvessels that involves activation of NOS and BKCa.
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Affiliation(s)
- Pritam Sinharoy
- Department of Anesthesia, Perioperative and Pain Medicine, Stanford School of Medicine, Stanford, California, United States of America
| | - Ian N. Bratz
- Department of Integrative Medical Sciences, Northeast Ohio Medical College, Rootstown, Ohio, United States of America
| | - Sayantani Sinha
- Department of Surgery, Division of Orthopedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Loral E. Showalter
- Department of Biological Sciences, Kent State University, Kent, Ohio, United States of America
| | - Spencer R. Andrei
- Department of Biological Sciences, Kent State University, Kent, Ohio, United States of America
| | - Derek S. Damron
- Department of Biological Sciences, Kent State University, Kent, Ohio, United States of America
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Deng Y, Huang X, Wu H, Zhao M, Lu Q, Israeli E, Dahan S, Blank M, Shoenfeld Y. Some like it hot: The emerging role of spicy food (capsaicin) in autoimmune diseases. Autoimmun Rev 2016; 15:451-6. [PMID: 26812350 DOI: 10.1016/j.autrev.2016.01.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 01/20/2016] [Indexed: 12/28/2022]
Abstract
Autoimmune diseases refer to a spectrum of diseases characterized by an active immune response against the host, which frequently involves increased autoantibody production. The pathogenesis of autoimmune diseases is multifactorial and the exploitation of novel effective treatment is urgent. Capsaicin is a nutritional factor, the active component of chili peppers, which is responsible for the pungent component of chili pepper. As a stimuli, capsaicin selectively activate transient receptor potential vanilloid subfamily 1(TRPV1) and exert various biological effects. This review discusses the effect of capsaicin through its receptor on the development and modulation of autoimmune diseases, which may shed light upon potential therapies in capsaicin-targeted approaches.
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Affiliation(s)
- Yaxiong Deng
- Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, Second Xiangya Hospital, Central South University, #139 Renmin Middle Rd, Changsha, Hunan 410011, PR China
| | - Xin Huang
- Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, Second Xiangya Hospital, Central South University, #139 Renmin Middle Rd, Changsha, Hunan 410011, PR China
| | - Haijing Wu
- Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, Second Xiangya Hospital, Central South University, #139 Renmin Middle Rd, Changsha, Hunan 410011, PR China
| | - Ming Zhao
- Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, Second Xiangya Hospital, Central South University, #139 Renmin Middle Rd, Changsha, Hunan 410011, PR China
| | - Qianjin Lu
- Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, Second Xiangya Hospital, Central South University, #139 Renmin Middle Rd, Changsha, Hunan 410011, PR China.
| | - Eitan Israeli
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel
| | - Shani Dahan
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel
| | - Miri Blank
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel
| | - Yehuda Shoenfeld
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel
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Zhang Y, Chen Q, Sun Z, Han J, Wang L, Zheng L. Impaired capsaicin-induced relaxation in diabetic mesenteric arteries. J Diabetes Complications 2015; 29:747-54. [PMID: 26055306 DOI: 10.1016/j.jdiacomp.2015.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 05/01/2015] [Accepted: 05/10/2015] [Indexed: 12/19/2022]
Abstract
AIMS To investigate capsaicin-induced vasodilation in the diabetic mesenteric arteries. METHODS A diabetic rat model was established by intraperitoneal injection of streptozotocin after a 12-h fast. At 12 weeks post-injection, the third branch of the mesenteric artery was dissected out and prepared for vascular reactivity assessment. Capsaicin, capsazepine, N(ω)-nitro-L-arginine methyl ester hydrochloride (L-NAME), sodium nitroprusside (SNP), calcitonin gene-related peptide 8-37 (CGRP8-37), calcitonin gene-related peptide (CGRP), and substance P (SP) were added to investigate subsequent alterations in vascular activity. Plasma and physiological salt solution (PSS) levels of CGRP and SP were measured using radioimmunoassay. The expression of transient receptor potential vanilloid 1 (TRPV1) and phospho-eNOS were determined using Western blot analysis, and nitric oxide (NO) production was measured using a fluorescence probe. RESULTS The dilation effect of capsaicin was weaker under the diabetic than control conditions. Capsazepine, L-NAME, and CGRP8-37 attenuated capsaicin-induced vasorelaxation significantly in the diabetic vascular rings. Exogenous CGRP elicited dose-dependent vasodilation in the control arteries, whereas the dilation effect was reduced under diabetic conditions. Plasma and PSS CGRP levels were attenuated and mesenteric artery TRPV1 expression was decreased in the diabetic rats. Phospho-eNOS levels were augmented, and NO production increased following the administration of capsaicin. CONCLUSIONS Decreased expression of TRPV1 and associated neuropeptide release contributed to the impaired capsaicin-induced vasodilation in diabetic mesenteric arteries. Furthermore, an endothelium-dependent NO-related pathway was involved in capsaicin-induced vasodilation.
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Affiliation(s)
- Yuanyuan Zhang
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Qiang Chen
- Department of Cardiovascular Sciences, Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu 322000, China
| | - Zewei Sun
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jie Han
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Lihong Wang
- Department of Cardiovascular Sciences, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Liangrong Zheng
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.
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Trujillo X, Ortiz-Mesina M, Uribe T, Castro E, Montoya-Pérez R, Urzúa Z, Feria-Velasco A, Huerta M. Capsaicin and N-Arachidonoyl-dopamine (NADA) Decrease Tension by Activating Both Cannabinoid and Vanilloid Receptors in Fast Skeletal Muscle Fibers of the Frog. J Membr Biol 2014; 248:31-8. [DOI: 10.1007/s00232-014-9727-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 09/05/2014] [Indexed: 11/30/2022]
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Kim HS, Kwon HJ, Kim GE, Cho MH, Yoon SY, Davies AJ, Oh SB, Lee H, Cho YK, Joo CH, Kwon SW, Kim SC, Kim YK. Attenuation of natural killer cell functions by capsaicin through a direct and TRPV1-independent mechanism. Carcinogenesis 2014; 35:1652-60. [DOI: 10.1093/carcin/bgu091] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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Kozhevnikova LM, Zharkikh IL, Avdonin PV. Calmodulin inhibitors suppress calcium signaling from serotonin receptors in smooth muscle cells and abolish vasoconstrictive response on intravenous introduction of serotonin. BIOL BULL+ 2013. [DOI: 10.1134/s1062359013040080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Horton JS, Buckley CL, Stokes AJ. Successful TRPV1 antagonist treatment for cardiac hypertrophy and heart failure in mice. Channels (Austin) 2012; 7:17-22. [PMID: 23221478 DOI: 10.4161/chan.23006] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Heart failure is becoming a global epidemic. It exerts a staggering toll on quality of life, and substantial medical and economic impact. In a pre-clinical model of cardiac hypertrophy and heart failure, we were able to overcome loss of heart function by administering the TRPV1 antagonist BCTC (4-(3-Chloro-2-pyridinyl)-N-[4-(1,1-dimethylethyl)phenyl]-1-piperazinecarboxamide). The results presented here identify TRPV1 antagonists as new treatment options for cardiac hypertrophy and heart failure.
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Affiliation(s)
- Jaime S Horton
- Laboratory of Experimental Medicine, Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
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Enhanced vasorelaxant effects of the endocannabinoid-like mediator, oleamide, in hypertension. Eur J Pharmacol 2012; 684:102-7. [DOI: 10.1016/j.ejphar.2012.03.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 03/08/2012] [Accepted: 03/09/2012] [Indexed: 02/07/2023]
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