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Mao A, Zhang K, Kan H, Gao M, Wang Z, Zhou T, Shao J, He D. Single-Cell RNA-Seq Reveals Coronary Heterogeneity and Identifies CD133 +TRPV4 high Endothelial Subpopulation in Regulating Flow-Induced Vascular Tone in Mice. Arterioscler Thromb Vasc Biol 2024; 44:653-665. [PMID: 38269590 PMCID: PMC10880935 DOI: 10.1161/atvbaha.123.319516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 01/10/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND Single-cell RNA-Seq analysis can determine the heterogeneity of cells between different tissues at a single-cell level. Coronary artery endothelial cells (ECs) are important to coronary blood flow. However, little is known about the heterogeneity of coronary artery ECs, and cellular identity responses to flow. Identifying endothelial subpopulations will contribute to the precise localization of vascular endothelial subpopulations, thus enabling the precision of vascular injury treatment. METHODS Here, we performed a single-cell RNA sequencing of 31 962 cells and functional assays of 3 branches of the coronary arteries (right coronary artery/circumflex left coronary artery/anterior descending left coronary artery) in wild-type mice. RESULTS We found a compendium of 7 distinct cell types in mouse coronary arteries, mainly ECs, granulocytes, cardiac myocytes, smooth muscle cells, lymphocytes, myeloid cells, and fibroblast cells, and showed spatial heterogeneity between arterial branches. Furthermore, we revealed a subpopulation of coronary artery ECs, CD133+TRPV4high ECs. TRPV4 (transient receptor potential vanilloid 4) in CD133+TRPV4high ECs is important for regulating vasodilation and coronary blood flow. CONCLUSIONS Our study elucidates the nature and range of coronary arterial cell diversity and highlights the importance of coronary CD133+TRPV4high ECs in regulating coronary vascular tone.
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Affiliation(s)
- Aiqin Mao
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
- School of Food Science and Technology (A.M., D.H.), Jiangnan University, China
| | - Ka Zhang
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Hao Kan
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Mengru Gao
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Zhiwei Wang
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Tingting Zhou
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Jing Shao
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Dongxu He
- School of Food Science and Technology (A.M., D.H.), Jiangnan University, China
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Matsumoto T, Taguchi K, Kobayashi T. Role of TRPV4 on vascular tone regulation in pathophysiological states. Eur J Pharmacol 2023; 959:176104. [PMID: 37802278 DOI: 10.1016/j.ejphar.2023.176104] [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: 08/18/2023] [Revised: 09/20/2023] [Accepted: 10/04/2023] [Indexed: 10/08/2023]
Abstract
Vascular tone regulation is a key event in controlling blood flow in the body. Endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) help regulate the vascular tone. Abnormal vascular responsiveness to various stimuli, including constrictors and dilators, has been observed in pathophysiological states although EC and VSMC coordinate to maintain the exquisite balance between contraction and relaxation in vasculatures. Thus, investigating the mechanisms underlying vascular tone abnormality is very important in maintaining vascular health and treating vasculopathy. Increased intracellular free Ca2+ concentration ([Ca2+]i) is one of the major triggers initiating each EC and VSMC response. Transient receptor potential vanilloid family member 4 (TRPV4) is a Ca2+-permeable non-selective ion channel, which is activated by several stimuli, and is presented in both ECs and VSMCs. Therefore, TRPV4 plays an important role in vascular responses. Emerging evidence indicates the role of TRPV4 on the functions of ECs and VSMCs in various pathophysiological states, including hypertension, diabetes, and obesity. This review focused on the link between TRPV4 and the functions of ECs/VSMCs, particularly its role in vascular tone and responsiveness to vasoactive substances.
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Affiliation(s)
- Takayuki Matsumoto
- Department of Pharmaceutical Education and Research, Pharmaceutical Education and Research Center, Hoshi University, Shinagawa-ku, Tokyo, 142-8501, Japan.
| | - Kumiko Taguchi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Tsuneo Kobayashi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo, 142-8501, Japan
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Zhang Y, Tang C, Zhang M, Huang Z, Cai Z. Gold Nanoclusters as a Fluorescent Probe for the Sensitive Determination of Morin and Sensing of Temperature. ChemistrySelect 2022. [DOI: 10.1002/slct.202203005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Yi Zhang
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang 441053 Hubei Province P. R. China
| | - Chang Tang
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang 441053 Hubei Province P. R. China
| | - Minglu Zhang
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang 441053 Hubei Province P. R. China
| | - Zilong Huang
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang 441053 Hubei Province P. R. China
| | - Zhifeng Cai
- Department of Chemistry Taiyuan Normal University Jinzhong 030619 Shanxi Province P. R. China
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Caires R, Garrud TAC, Romero LO, Fernández-Peña C, Vásquez V, Jaggar JH, Cordero-Morales JF. Genetic- and diet-induced ω-3 fatty acid enrichment enhances TRPV4-mediated vasodilation in mice. Cell Rep 2022; 40:111306. [PMID: 36070688 PMCID: PMC9498980 DOI: 10.1016/j.celrep.2022.111306] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/05/2022] [Accepted: 08/11/2022] [Indexed: 11/19/2022] Open
Abstract
TRPV4 channel activation in endothelial cells leads to vasodilation, while impairment of TRPV4 activity is implicated in vascular dysfunction. Strategies that increase TRPV4 activity could enhance vasodilation and ameliorate vascular disorders. Here, we show that supplementation with eicosapentaenoic acid (EPA), an ω-3 polyunsaturated fatty acid known to have beneficial cardiovascular effects, increases TRPV4 activity in human endothelial cells of various vascular beds. Mice carrying the C. elegans FAT-1 enzyme, which converts ω-6 to ω-3 polyunsaturated fatty acids, display higher EPA content and increased TRPV4-mediated vasodilation in mesenteric arteries. Likewise, mice fed an EPA-enriched diet exhibit enhanced and prolonged TRPV4-dependent vasodilation in an endothelial cell-specific manner. We also show that EPA supplementation reduces TRPV4 desensitization, which contributes to the prolonged vasodilation. Neutralization of positive charges in the TRPV4 N terminus impairs the effect of EPA on channel desensitization. These findings highlight the beneficial effects of manipulating fatty acid content to enhance TRPV4-mediated vasodilation.
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Affiliation(s)
- Rebeca Caires
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Tessa A C Garrud
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Luis O Romero
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; Integrated Biomedical Sciences Graduate Program, College of Graduate Health Sciences, Memphis, TN 38163, USA
| | - Carlos Fernández-Peña
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Valeria Vásquez
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Jonathan H Jaggar
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Julio F Cordero-Morales
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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5
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Silybin induces endothelium-dependent vasodilation via TRPV4 channels in mouse mesenteric arteries. Hypertens Res 2022; 45:1954-1963. [PMID: 36056206 DOI: 10.1038/s41440-022-01000-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/11/2022] [Accepted: 07/15/2022] [Indexed: 11/08/2022]
Abstract
Silybin is a flavonolignan extracted from the seeds of Silybum marianum that has been used as a dietary supplement for treating hepatic diseases and components of metabolic syndrome such as diabetes, obesity and hypertension. Transient receptor potential vanilloid 4 (TRPV4) channels are Ca2+-permeable, nonselective cation channels that regulate vascular endothelial function and blood flow. However, the relationship between silybin and TRPV4 channels in small mesenteric arteries remains unknown. In our study, we carried out a molecular docking experiment by using Discovery Studio v3.5 to predict the binding of silybin to TRPV4. Activation of TRPV4 with silybin was detected via intracellular Ca2+ concentration ([Ca2+]i) measurement and patch clamp experiments. The molecular docking results showed that silybin was likely to bind to the ankyrin repeat domain of TPRV4. [Ca2+]i measurements in mesenteric arterial endothelial cells (MAECs) and TRPV4-overexpressing HEK293 (TRPV4-HEK293) cells demonstrated that silybin induced Ca2+ influx by activating TRPV4 channels. The patch clamp experiments indicated that in TRPV4-HEK293 cells, silybin induced TRPV4-mediated cation currents. In addition, in high-salt-induced hypertensive mice, oral administration of silybin decreased systolic blood pressure (SBP) and significantly improved the arterial dilatory response to acetylcholine. Our findings provide the first evidence that silybin could induce mesenteric endothelium-dependent vasodilation and reduce blood pressure in high-salt-induced hypertensive mice via TRPV4 channels, thereby revealing the potential effect of silybin on preventing endothelial dysfunction-related cardiovascular diseases.
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Atucha NM, Romecín P, Vargas F, García-Estañ J. Effects of flavonoids in experimental models of arterial hypertension. Curr Top Med Chem 2021; 22:735-745. [PMID: 34749613 DOI: 10.2174/1568026621666211105100800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/21/2021] [Accepted: 08/12/2021] [Indexed: 11/22/2022]
Abstract
Flavonoids are a class of substances of a vegetal origin with many interesting actions from the point of view of human disease. Interest in flavonoids in the diet has increased in recent years due to the publication of basic, clinical and epidemiological studies that have shown a whole array of salutory effects related to intake of flavonols and flavones as well as a lower morbility and mortality of cardiovascular diseases. Since arterial hypertension is the most common modifiable risk factor for cardiovascular diseases, this review will focus mainly on the effects of flavonoids on the cardiovascular system with relation to the elevation of blood pressure. Its antihypertensive effects as well as the many investigations performed in experimental models of arterial hypertension are reviewed in this mini-review.
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Affiliation(s)
- Noemi M Atucha
- Departmento de Fisiología, Facultad de Medicina, Instituto Murciano de Investigación Biomédica, Universidad de Murcia, Murcia, and Granada. Spain
| | - Paola Romecín
- Departmento de Fisiología, Facultad de Medicina, Instituto Murciano de Investigación Biomédica, Universidad de Murcia, Murcia, and Granada. Spain
| | - Felix Vargas
- Departmento de Fisiología, Facultad de Medicina, Instituto Murciano de Investigación Biomédica, Universidad de Murcia, Murcia, and Granada. Spain
| | - Joaquin García-Estañ
- Departmento de Fisiología, Facultad de Medicina, Instituto Murciano de Investigación Biomédica, Universidad de Murcia, Murcia, and Granada. Spain
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7
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Zhou T, Wang Z, Guo M, Zhang K, Geng L, Mao A, Yang Y, Yu F. Puerarin induces mouse mesenteric vasodilation and ameliorates hypertension involving endothelial TRPV4 channels. Food Funct 2021; 11:10137-10148. [PMID: 33155599 DOI: 10.1039/d0fo02356f] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Puerarin (Pue) is an isoflavone derived from the root of Pueraria lobata, which has been widely used as food and a herb for treating cardiovascular and cerebrovascular diseases. Transient receptor potential vanilloid 4 (TRPV4), a Ca2+-permeable channel with multiple modes of activation, plays an important role in vascular endothelial function and vasodilation. However, no reports have shown the effects of Pue on TRPV4 channels and mouse small mesenteric arteries. In the present study, we performed a molecular docking assay by using Discovery Studio 3.5 software to predict the binding of Pue to TRPV4 protein. The activation of TRPV4 by Pue was determined by intracellular Ca2+ concentration ([Ca2+]i), live-cell fluorescent Ca2+ imaging and patch clamp assays. Molecular docking results indicated a high possibility of Pue-TPRV4 binding. [Ca2+]i and Ca2+ imaging assays showed that Pue activated TRPV4 channels and increased [Ca2+]i in TRPV4-overexpressing HEK293 (TRPV4-HEK293) cells and primary mouse mesenteric artery endothelial cells (MAECs). Patch clamp assay demonstrated that Pue stimulated the TRPV4-mediated cation currents. Additionally, Pue relaxed mouse mesenteric arteries involving the TRPV4-small-conductance Ca2+-activated K+ channel (SKCa)/intermediate-conductance Ca2+-activated K+ channel (IKCa) pathway, and reduced systolic blood pressure (SBP) in high-salt-induced hypertensive mice. Our study found for the first time that Pue acts as a TRPV4 agonist, induces endothelium-dependent vasodilation in mouse mesenteric arteries, and attenuates blood pressure in high-salt-induced hypertensive mice, highlighting the beneficial effect of Pue in treating endothelial dysfunction-related cardiovascular diseases.
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Affiliation(s)
- Tingting Zhou
- Wuxi School of Medicine, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
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8
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Precupas A, Sandu R, Neculae AVF, Neacsu A, Popa VT. Calorimetric, spectroscopic and computational investigation of morin binding effect on bovine serum albumin stability. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Chen M, Li X. Role of TRPV4 channel in vasodilation and neovascularization. Microcirculation 2021; 28:e12703. [PMID: 33971061 DOI: 10.1111/micc.12703] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/02/2021] [Indexed: 12/12/2022]
Abstract
The transient receptor potential vanilloid type 4 (TRPV4) channel, a Ca2+ -permeable nonselective cation channel, is widely distributed in the circulatory system, particularly in vascular endothelial cells (ECs) and smooth muscle cells (SMCs). The TRPV4 channel is activated by various endogenous and exogenous stimuli, including shear stress, low intravascular pressure, and arachidonic acid. TRPV4 has a role in mediating vascular tone and arterial blood pressure. The activation of the TRPV4 channel induces Ca2+ influx, thereby resulting in endothelium-dependent hyperpolarization and SMC relaxation through SKCa and IKCa activation on ECs or through BKCa activation on SMCs. Ca2+ binds to calmodulin, which leads to the production of nitric oxide, causing vasodilation. Furthermore, the TRPV4 channel plays an important role in angiogenesis and arteriogenesis and is critical for tumor angiogenesis and growth, since it promotes or inhibits the development of various types of cancer. The TRPV4 channel is involved in the active growth of collateral arteries induced by flow shear stress, which makes it a promising therapeutic target in the occlusion or stenosis of the main arteries. In this review, we explore the role and the potential mechanism of action of the TRPV4 channel in the regulation of vascular tone and in the induction of neovascularization to provide a reference for future research.
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Affiliation(s)
- Miao Chen
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Xiucun Li
- Department of Hand and Foot Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Anatomy and Histoembryology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
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Thakur K, Zhu YY, Feng JY, Zhang JG, Hu F, Prasad C, Wei ZJ. Morin as an imminent functional food ingredient: an update on its enhanced efficacy in the treatment and prevention of metabolic syndromes. Food Funct 2021; 11:8424-8443. [PMID: 33043925 DOI: 10.1039/d0fo01444c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Flavonoids represent polyphenolic plant secondary metabolites with a general structure of a 15-carbon skeleton comprising two phenyl rings and a heterocyclic ring. Over 5000 natural flavonoids (flavanones, flavanonols, and flavans) from various plants have been characterized. Several studies provide novel and promising insights into morin hydrate for its different biological activities against a series of metabolic syndromes. The present review is a rendition of its sources, chemistry, functional potency, and protective effects on metabolic syndromes ranging from cancer to brain injury. Most importantly this systematic review article also highlights the mechanisms of interest to morin-mediated management of metabolic disorders. The key mechanisms (anti-oxidative and anti-inflammatory) responsible for its therapeutic potential are well featured after collating the in vitro and in vivo study reports. As a whole, based on the prevailing information rationalizing its medicinal use, morin can be identified as a therapeutic agent for the expansion of human health.
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Affiliation(s)
- Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Yun-Yang Zhu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Jing-Yu Feng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Jian-Guo Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Chandan Prasad
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, TX, USA. and Department of Medicine, LSU School of Medicine, New Orleans, LA, USA
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China. and Collaborative Innovation Center for Food Production and Safety, School of Biological Science and Engineering, North Minzu University, Yinchuan 750021, China
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11
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Liu L, Guo M, Lv X, Wang Z, Yang J, Li Y, Yu F, Wen X, Feng L, Zhou T. Role of Transient Receptor Potential Vanilloid 4 in Vascular Function. Front Mol Biosci 2021; 8:677661. [PMID: 33981725 PMCID: PMC8107436 DOI: 10.3389/fmolb.2021.677661] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/06/2021] [Indexed: 12/19/2022] Open
Abstract
Transient receptor potential vanilloid 4 (TRPV4) channels are widely expressed in systemic tissues and can be activated by many stimuli. TRPV4, a Ca2+-permeable cation channel, plays an important role in the vasculature and is implicated in the regulation of cardiovascular homeostasis processes such as blood pressure, vascular remodeling, and pulmonary hypertension and edema. Within the vasculature, TRPV4 channels are expressed in smooth muscle cells, endothelial cells, and perivascular nerves. The activation of endothelial TRPV4 contributes to vasodilation involving nitric oxide, prostacyclin, and endothelial-derived hyperpolarizing factor pathways. TRPV4 activation also can directly cause vascular smooth muscle cell hyperpolarization and vasodilation. In addition, TRPV4 activation can evoke constriction in some specific vascular beds or under some pathological conditions. TRPV4 participates in the control of vascular permeability and vascular damage, particularly in the lung capillary endothelial barrier and lung injury. It also participates in vascular remodeling regulation mainly by controlling vasculogenesis and arteriogenesis. This review examines the role of TRPV4 in vascular function, particularly in vascular dilation and constriction, vascular permeability, vascular remodeling, and vascular damage, along with possible mechanisms, and discusses the possibility of targeting TRPV4 for therapy.
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Affiliation(s)
- Liangliang Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Mengting Guo
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xiaowang Lv
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Zhiwei Wang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Jigang Yang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yanting Li
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Fan Yu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xin Wen
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Lei Feng
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Tingting Zhou
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
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12
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A multitarget semi-synthetic derivative of the flavonoid morin with improved in vitro vasorelaxant activity: Role of Ca V1.2 and K Ca1.1 channels. Biochem Pharmacol 2021; 185:114429. [PMID: 33513341 DOI: 10.1016/j.bcp.2021.114429] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/28/2020] [Accepted: 01/19/2021] [Indexed: 12/24/2022]
Abstract
CaV1.2 channels play a fundamental role in the regulation of vascular smooth muscle tone. The aim of the present study was to synthesize morin derivatives bearing the nitrophenyl moiety of dihydropyridine Ca2+ antagonists to increase the flavonoid vasorelaxant activity. The effects of morin and its derivatives were assessed on CaV1.2 and KCa1.1 channels, both in vitro and in silico, as well as on the contractile responses of rat aorta rings. All compounds were effective CaV1.2 channel blockers, positioning in the α1C subunit region where standard blockers bind. Among the four newly synthesized morin derivatives, the penta-acetylated morin-1 was the most efficacious Ca2+ antagonist, presenting a vasorelaxant profile superior to that of the parent compound and, contrary to morin, antagonized also the release of Ca2+ from the sarcoplasmic reticulum; surprisingly, it also stimulated KCa1.1 channel current. Computational analysis demonstrated that morin-1 bound close to the KCa1.1 channel S6 segment. In conclusion, these findings open a new avenue for the synthesis of valuable multi-functional, vasorelaxant morin derivatives capable to target several pathways underpinning the pathogenesis of hypertension.
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Doñate‐Macian P, Duarte Y, Rubio‐Moscardo F, Pérez‐Vilaró G, Canan J, Díez J, González‐Nilo F, Valverde MA. Structural determinants of TRPV4 inhibition and identification of new antagonists with antiviral activity. Br J Pharmacol 2020; 179:3576-3591. [PMID: 32959389 PMCID: PMC9291951 DOI: 10.1111/bph.15267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 08/10/2020] [Accepted: 09/07/2020] [Indexed: 01/31/2023] Open
Abstract
Background and Purpose The transient receptor potential vanilloid 4 (TRPV4) cation channel participates in multiple physiological processes and is also at the core of different diseases, making this channel an interesting pharmacological target with therapeutic potential. However, little is known about the structural elements governing its inhibition. Experimental Approach We have now combined in silico drug discovery and molecular dynamics simulation based on Xenopus tropicalis xTRPV4 structure with functional studies measuring cell Ca2+ influx mediated by human TRPV4 channel to characterize the binding site of known TRPV4 inhibitors and to identify novel small molecule channel modulators. Key Results We have found that the inhibitor HC067047 binds to a pocket conformed by residues from S2–S3 linker (xTRPV4‐D542), S4 (xTRPV4‐M583 and Y587 and S5 (xTRPV4‐D609 and F613). This pocket was also used for structure‐based virtual screening in the search of novel channel modulators. Forty potential hits were selected based on the lower docking scores (from ~250,000 compounds) and their effect upon TRPV4 functionally tested. Three were further analysed for stability using molecular dynamics simulation and functionally tested on TRPV4 channels carrying mutations in the binding pocket. Compound NSC151066, shown to require residue xTRPV4‐M583 for its inhibitory effect, presented an IC50 of 145 nM and demonstrated to be an effective antiviral against Zika virus with a potency similar to HC067047. Conclusion and Implications Together, we propose structural insights into the inhibition of TRPV4 and how this information can be used for the design of novel channel modulators. LINKED ARTICLES This article is part of a themed issue on Structure Guided Pharmacology of Membrane Proteins (BJP 75th Anniversary). To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v179.14/issuetoc
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Affiliation(s)
- Pablo Doñate‐Macian
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
| | - Yorley Duarte
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida Universidad Andrés Bello Santiago Chile
- Centro Interdisciplinario de Neurociencia de Valparaiso, Facultad de Ciencias de la Vida Universidad de Valparaíso Valparaíso Chile
| | - Fanny Rubio‐Moscardo
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
| | - Gemma Pérez‐Vilaró
- Molecular Virology Group, Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
| | - Jonathan Canan
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida Universidad Andrés Bello Santiago Chile
| | - Juana Díez
- Molecular Virology Group, Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
| | - Fernando González‐Nilo
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida Universidad Andrés Bello Santiago Chile
- Centro Interdisciplinario de Neurociencia de Valparaiso, Facultad de Ciencias de la Vida Universidad de Valparaíso Valparaíso Chile
| | - Miguel A. Valverde
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
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Carullo G, Sciubba F, Governa P, Mazzotta S, Frattaruolo L, Grillo G, Cappello AR, Cravotto G, Di Cocco ME, Aiello F. Mantonico and Pecorello Grape Seed Extracts: Chemical Characterization and Evaluation of In Vitro Wound-Healing and Anti-Inflammatory Activities. Pharmaceuticals (Basel) 2020; 13:ph13050097. [PMID: 32423026 PMCID: PMC7281466 DOI: 10.3390/ph13050097] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/06/2020] [Accepted: 05/12/2020] [Indexed: 01/25/2023] Open
Abstract
The winemaking process produces a huge number of pomaces that generally are used for energy purposes. Further valuable applications such as health-promoting properties are still under investigation. The seeds of the white berries of Mantonico and Pecorello cv. were extracted in a Soxhlet apparatus, using n-hexane and chloroform as solvents. Extracts were characterized by NMR and GC-MS analyses. They were assayed in vitro as wound healing and anti-inflammatory agents in HaCaT and RAW 264.7 cell lines, respectively. n-hexane Mantonico extract resulted in the most interesting wound healing sample, while n-hexane Pecorello, containing a good number of carotenoids, resulted in a good anti-inflammatory candidate. These preliminary findings underlined the benefit of grape seed extracts valorization due to their health-promoting properties.
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Affiliation(s)
- Gabriele Carullo
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, Edificio Polifunzionale, 87036 Rende (CS), Italy; (G.C.); (S.M.); (L.F.); (A.R.C.)
| | - Fabio Sciubba
- Department of Chemistry, University of Rome “La Sapienza”, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.S.); (M.E.D.C.)
| | - Paolo Governa
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy;
| | - Sarah Mazzotta
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, Edificio Polifunzionale, 87036 Rende (CS), Italy; (G.C.); (S.M.); (L.F.); (A.R.C.)
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Seville, C/O Prof. García González, 41071 Seville, Spain
| | - Luca Frattaruolo
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, Edificio Polifunzionale, 87036 Rende (CS), Italy; (G.C.); (S.M.); (L.F.); (A.R.C.)
| | - Giorgio Grillo
- Department of Drug Science and Technology, University of Turin, Via P. Guria 9, 10125 Turin, Italy; (G.G.); (G.C.)
| | - Anna Rita Cappello
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, Edificio Polifunzionale, 87036 Rende (CS), Italy; (G.C.); (S.M.); (L.F.); (A.R.C.)
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Guria 9, 10125 Turin, Italy; (G.G.); (G.C.)
| | - Maria Enrica Di Cocco
- Department of Chemistry, University of Rome “La Sapienza”, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.S.); (M.E.D.C.)
| | - Francesca Aiello
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, Edificio Polifunzionale, 87036 Rende (CS), Italy; (G.C.); (S.M.); (L.F.); (A.R.C.)
- Correspondence: ; Tel.: +39-098-449-3154
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