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Dias MTS, Aguilar EC, Campos GP, do Couto NF, Capettini LDSA, Braga WF, Andrade LDO, Alvarez-Leite J. Butyrate inhibits LPC-induced endothelial dysfunction by regulating nNOS-produced NO and ROS production. Nitric Oxide 2023; 138-139:42-50. [PMID: 37308032 DOI: 10.1016/j.niox.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/09/2023] [Accepted: 05/25/2023] [Indexed: 06/14/2023]
Abstract
Lipids oxidation is a key risk factor for cardiovascular diseases. Lysophosphatidylcholine (LPC), the major component of oxidized LDL, is an important triggering agent for endothelial dysfunction and atherogenesis. Sodium butyrate, a short-chain fatty acid, has demonstrated atheroprotective properties. So, we evaluate the role of butyrate in LPC-induced endothelial dysfunction. Vascular response to phenylephrine (Phe) and acetylcholine (Ach) was performed in aortic rings from male mice (C57BL/6J). The aortic rings were incubated with LPC (10 μM) and butyrate (0.01 or 0.1 Mm), with or without TRIM (an nNOS inhibitor). Endothelial cells (EA.hy296) were incubated with LPC and butyrate to evaluate nitric oxide (NO) and reactive oxygen species (ROS) production, calcium influx, and the expression of total and phosphorylated nNOS and ERK½. We found that butyrate inhibited LPC-induced endothelial dysfunction by improving nNOS activity in aortic rings. In endothelial cells, butyrate reduced ROS production and increased nNOS-related NO release, by improving nNOS activation (phosphorylation at Ser1412). Additionally, butyrate prevented the increase in cytosolic calcium and inhibited ERk½ activation by LPC. In conclusion, butyrate inhibited LPC-induced vascular dysfunction by increasing nNOS-derived NO and reducing ROS production. Butyrate restored nNOS activation, which was associated with calcium handling normalization and reduction of ERK½ activation.
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Affiliation(s)
- Melissa Tainan Silva Dias
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte, MG, Brazil.
| | - Edenil Costa Aguilar
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte, MG, Brazil.
| | - Gianne Paul Campos
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte, MG, Brazil.
| | - Natalia Fernanda do Couto
- Department of Medicine. University of Illinois Chicago, Center of Cardiovascular Research, 909 South Wolcott Avenue, MC801 Chicago, IL, 60612, USA.
| | - Luciano Dos Santos Aggum Capettini
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte, MG, Brazil.
| | - Weslley Fernandes Braga
- Icahn School of Medicine. Mount Sinai, Nova Iorque, Gustave L. Levy Place, New York, NY, 10029-5674, USA.
| | - Luciana de Oliveira Andrade
- Department of Cell Biology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte, MG, Brazil.
| | - Jacqueline Alvarez-Leite
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte, MG, Brazil.
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Silva H. The Vascular Effects of Isolated Isoflavones-A Focus on the Determinants of Blood Pressure Regulation. BIOLOGY 2021; 10:49. [PMID: 33445531 PMCID: PMC7827317 DOI: 10.3390/biology10010049] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/27/2020] [Accepted: 01/02/2021] [Indexed: 02/07/2023]
Abstract
Isoflavones are phytoestrogen compounds with important biological activities, including improvement of cardiovascular health. This activity is most evident in populations with a high isoflavone dietary intake, essentially from soybean-based products. The major isoflavones known to display the most important cardiovascular effects are genistein, daidzein, glycitein, formononetin, and biochanin A, although the closely related metabolite equol is also relevant. Most clinical studies have been focused on the impact of dietary intake or supplementation with mixtures of compounds, with only a few addressing the effect of isolated compounds. This paper reviews the main actions of isolated isoflavones on the vasculature, with particular focus given to their effect on the determinants of blood pressure regulation. Isoflavones exert vasorelaxation due to a multitude of pathways in different vascular beds. They can act in the endothelium to potentiate the release of NO and endothelium-derived hyperpolarization factors. In the vascular smooth muscle, isoflavones modulate calcium and potassium channels, leading to hyperpolarization and relaxation. Some of these effects are influenced by the binding of isoflavones to estrogen receptors and to the inhibition of specific kinase enzymes. The vasorelaxation effects of isoflavones are mostly obtained with plasma concentrations in the micromolar range, which are only attained through supplementation. This paper highlights isolated isoflavones as potentially suitable alternatives to soy-based foodstuffs and supplements and which could enlarge the current therapeutic arsenal. Nonetheless, more studies are needed to better establish their safety profile and elect the most useful applications.
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Affiliation(s)
- Henrique Silva
- Informetrics Research Group, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam;
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
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Zou Y, Kim DH, Jung KJ, Heo HS, Kim CH, Baik HS, Yu BP, Yokozawa T, Chung HY. Lysophosphatidylcholine Enhances Oxidative Stress Via the 5-Lipoxygenase Pathway in Rat Aorta During Aging. Rejuvenation Res 2009; 12:15-24. [DOI: 10.1089/rej.2008.0807] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yani Zou
- College of Pharmacy, Aging Tissue Bank, Busan, South Korea
| | - Dae Hyun Kim
- College of Pharmacy, Aging Tissue Bank, Busan, South Korea
| | - Kyung Jin Jung
- College of Pharmacy, Aging Tissue Bank, Busan, South Korea
| | - Hyoung-Sam Heo
- College of Pharmacy, Aging Tissue Bank, Busan, South Korea
| | - Chul Hong Kim
- College of Pharmacy, Aging Tissue Bank, Busan, South Korea
- Genetic Engineering Research Institute, Pusan National University, Busan, South Korea
| | - Hyung Suk Baik
- Genetic Engineering Research Institute, Pusan National University, Busan, South Korea
| | - Byung Pal Yu
- Department of Physiology, University of Texas Health Science Center, San Antonio, Texas
- Longevity Life Science and Technology Institute, Pusan National University, Busan, South Korea
| | - Takako Yokozawa
- Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Hae Young Chung
- College of Pharmacy, Aging Tissue Bank, Busan, South Korea
- Genetic Engineering Research Institute, Pusan National University, Busan, South Korea
- Longevity Life Science and Technology Institute, Pusan National University, Busan, South Korea
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4
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Matsumoto T, Kobayashi T, Kamata K. Mechanisms underlying lysophosphatidylcholine-induced potentiation of vascular contractions in the Otsuka Long-Evans Tokushima Fatty (OLETF) rat aorta. Br J Pharmacol 2006; 149:931-41. [PMID: 17031383 PMCID: PMC2014696 DOI: 10.1038/sj.bjp.0706937] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND AND PURPOSE The effect of lysophosphatidylcholine (LPC) on aortic contractions in Otsuka Long-Evans Tokushima Fatty (OLETF) rats, a type 2 diabetic model, was studied. EXPERIMENTAL APPROACH Using OLETF rats and control (Long Evans Tokushima Otsuka (LETO)) rats, the effects of LPC on the contractions induced by high-K(+) (10-40 mM), UK14,304 (10 approximately 100 nM; a selective alpha(2)-adrenoceptor agonist) and sodium orthovanadate (SOV; 10 microM approximately 3 mM) in endothelium-denuded aortae were compared. Aortic ERK activity and the mRNA expression for GPR4 (a putative LPC receptor) were also measured. KEY RESULTS OLETF rats exhibited (vs. age-matched LETO rats): (1) greater potentiation of high-K(+)-induced contraction by 10 microM LPC - a potentiation attenuated by 10 microM genistein, protein tyrosine kinase (PTK) inhibitor, (2) greater potentiation of UK14,304 (10 approximately 100 nM)-induced contractions by LPC (1 microM approximately 10 microM) - a potentiation attenuated by 10 microM genistein, 50 microM tyrphostin A23 (PTK inhibitor) or 10 microM PD98059 (MEK 1/2 inhibitor), (3) greater basal and LPC (1 microM)-induced ERK activities, (4) greater basal and 100 nM UK14,304-stimulated ERK2 activities in both the absence and presence of 10 microM LPC, (5) greater SOV (10 microM approximately 3 mM)-induced contractions, (6) greater potentiation of SOV-induced contractions by 10 microM LPC - a potentiation suppressed by 10 microM PD98059 or 10 microM genistein, (7) upregulation of GPR4 mRNA. CONCLUSIONS AND IMPLICATIONS These results suggest that the LPC-induced potentiation of contractions in the OLETF rat aorta may be attributable to increased PTKs or ERK activity and/or to receptor upregulation.
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MESH Headings
- Animals
- Aorta, Thoracic/drug effects
- Brimonidine Tartrate
- Diabetes Mellitus, Type 2/physiopathology
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Lysophosphatidylcholines/pharmacology
- MAP Kinase Signaling System/drug effects
- Male
- Muscle, Smooth, Vascular/chemistry
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/physiopathology
- Potassium/pharmacology
- Protein Kinase Inhibitors/pharmacology
- Protein Tyrosine Phosphatases/antagonists & inhibitors
- Quinoxalines/pharmacology
- RNA, Messenger/analysis
- Rats
- Rats, Inbred OLETF
- Rats, Long-Evans
- Receptors, G-Protein-Coupled/analysis
- Up-Regulation
- Vanadates
- Vasoconstriction/drug effects
- Vasoconstrictor Agents/pharmacology
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Affiliation(s)
- T Matsumoto
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University Shinagawa-ku, Tokyo, Japan
| | - T Kobayashi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University Shinagawa-ku, Tokyo, Japan
| | - K Kamata
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University Shinagawa-ku, Tokyo, Japan
- Author for correspondence:
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Matsumoto T, Kobayashi T, Kikuchi T, Honda T, Kamata K. Effects of dual-action genistein derivatives on relaxation in rat aorta. J Smooth Muscle Res 2005; 41:23-33. [PMID: 15855737 DOI: 10.1540/jsmr.41.23] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Protein tyrosine kinases and nitric oxide (NO) play important roles in several cardiovascular diseases. In this study, we examined the actions of two compounds, each has structure of genistein (a tyrosine kinase inhibitor) and an NO donor, on endothelium-independent relaxation responses in the isolated rat aorta. By rational drug design, genistein was modified to acquire an NO donor, and we synthesized two such compounds (G-II, G-VI). These compounds and genistein induced dose-dependent relaxation responses in endothelium-denuded aortic strips, the rank order of potencies being G-VI > G-II > genistein. Incubation of endothelium-denuded strips with 1H-[1,2,4] oxadiazolo[4,3-a]-quinoxalin-1-one (ODQ, 10 microM), a guanylyl cyclase inhibitor, inhibited both the G-II- and G-VI-induced relaxations, but not the genistein-induced relaxation. The residual relaxations induced by these two compounds were similar to the genistein-induced relaxation. Incubation of endothelium-denuded strips with lysophosphatidylcholine (LPC, 20 microM)-which is a major atherogenic lysophospholipid component of oxidized low-density lipoprotein and is known to activate tyrosine kinase-caused a significant rightward shift in the dose-response curve for genistein. LPC also shifted the G-II- and G-VI-induced relaxation curves to the right; however, these relaxations in the presence of LPC were greater than that induced by genistein. The sodium nitroprusside-induced relaxation in endothelium-denuded strips was similar between in the absence and presence of LPC. These results suggest that each of our newly developed G-II and G-VI compounds has a dual action, as an NO donor and a tyrosine kinase inhibitor. These compounds may be useful against certain cardiovascular diseases.
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Affiliation(s)
- Takayuki Matsumoto
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Tokyo, Japan
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Rohra DK, Yamakuni T, Ohizumi Y. Acidosis-induced protein tyrosine phosphorylation depends on Ca2+ influx via voltage-dependent Ca2+ channels in SHR aorta. Eur J Pharmacol 2005; 504:105-11. [PMID: 15507226 DOI: 10.1016/j.ejphar.2004.09.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2004] [Revised: 09/02/2004] [Accepted: 09/14/2004] [Indexed: 11/18/2022]
Abstract
The contractile response to acidosis in isolated aorta from spontaneously hypertensive rat (SHR) depends upon tyrosine phosphorylation of phosphatidylinositol 3 kinase (PI3-kinase) and Ca2+ influx via voltage-dependent Ca2+ channels (VDCC). In this study, verapamil, a VDCC inhibitor, was shown to markedly inhibit acidic pH-induced contraction, whereas the residual contraction in the presence of verapamil was unaffected by the PI3-kinase inhibitor, 2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one hydrochloride (LY-294002). Interestingly, the LY-294002-insensitive component of contraction was further inhibited by verapamil in the presence of LY-294002. Western blotting revealed that acidosis stimulated tyrosine phosphorylation of p85, which was abolished when tissues were pretreated with tyrphostin 23, a tyrosine kinase inhibitor, verapamil or EGTA. In fura-2-loaded aortic strips, acidosis induced a rise in intracellular Ca2+ ([Ca2+]i) that was partially inhibited by LY-294002. The residual increase in [Ca2+]i caused by acidosis in the presence of LY-294002 was abolished by verapamil. These findings suggest that acidosis-induced Ca2+ influx through VDCC is the upstream event leading to the tyrosine phosphorylation of PI3-kinase, which in turn contributes to the enhancement of Ca2+ entry to some extent in SHR aorta.
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Affiliation(s)
- Dileep Kumar Rohra
- Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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Suenaga H, Kamata K. Lysophosphatidylcholine activates extracellular-signal-regulated protein kinase and potentiates vascular contractile responses in rat aorta. J Pharmacol Sci 2003; 92:348-58. [PMID: 12939519 DOI: 10.1254/jphs.92.348] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
We previously reported that in the endothelium-denuded rat aorta, lysophosphatidylcholine (LPC) potentiates the contractile responses induced by high-K(+), UK14,304 (a selective alpha(2)-adrenoceptor agonist), and phorbol ester with an associated tyrosine-phosphorylation of proteins. To further investigate this phenomenon, we examined the effects of extracellular-signal-regulated protein kinase (ERK)-kinase (MEK) inhibitors on the LPC-induced potentiation of the contractile responses to high-K(+) and UK14,304 in this tissue. Although PD98059 (3 x 10(-)(5) M) did not affect the high-K(+)-induced contractile response itself, it selectively inhibited the potentiating effect of LPC on the contraction and strongly inhibited the LPC-induced augmentation of the associated increase in [Ca(2+)](i). PD98059 also attenuated the LPC-induced augmentations of the increases in [Ca(2+)](i) and contractile tension induced by UK14,304. U0126 (5 x 10(-)(5) M), another MEK inhibitor, also attenuated the potentiating effect of LPC on high-K(+)-induced contractions. Western blot analysis revealed that LPC produced an increase in ERK-phosphorylation, and that this was inhibited by PD98059. Nicardipine inhibited the contractile response to 15 mM K(+) in the LPC-treated aorta, but not the increase in ERK-phosphorylation induced by LPC. These results suggest that the LPC-induced augmentation of contractile responses in the rat aorta is due to activation of ERK, which in turn regulates Ca(2+) influx.
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Affiliation(s)
- Hiroshi Suenaga
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Japan
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