1
|
Sheth M, Sharma M, Lehn M, Reza H, Takebe T, Takiar V, Wise-Draper T, Esfandiari L. Three-dimensional matrix stiffness modulates mechanosensitive and phenotypic alterations in oral squamous cell carcinoma spheroids. APL Bioeng 2024; 8:036106. [PMID: 39092008 PMCID: PMC11293878 DOI: 10.1063/5.0210134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/22/2024] [Indexed: 08/04/2024] Open
Abstract
Extracellular biophysical cues such as matrix stiffness are key stimuli tuning cell fate and affecting tumor progression in vivo. However, it remains unclear how cancer spheroids in a 3D microenvironment perceive matrix mechanical stiffness stimuli and translate them into intracellular signals driving progression. Mechanosensitive Piezo1 and TRPV4 ion channels, upregulated in many malignancies, are major transducers of such physical stimuli into biochemical responses. Most mechanotransduction studies probing the reception of changing stiffness cues by cells are, however, still limited to 2D culture systems or cell-extracellular matrix models, which lack the major cell-cell interactions prevalent in 3D cancer tumors. Here, we engineered a 3D spheroid culture environment with varying mechanobiological properties to study the effect of static matrix stiffness stimuli on mechanosensitive and malignant phenotypes in oral squamous cell carcinoma spheroids. We find that spheroid growth is enhanced when cultured in stiff extracellular matrix. We show that the protein expression of mechanoreceptor Piezo1 and stemness marker CD44 is upregulated in stiff matrix. We also report the upregulation of a selection of genes with associations to mechanoreception, ion channel transport, extracellular matrix organization, and tumorigenic phenotypes in stiff matrix spheroids. Together, our results indicate that cancer cells in 3D spheroids utilize mechanosensitive ion channels Piezo1 and TRPV4 as means to sense changes in static extracellular matrix stiffness, and that stiffness drives pro-tumorigenic phenotypes in oral squamous cell carcinoma.
Collapse
Affiliation(s)
- Maulee Sheth
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - Manju Sharma
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - Maria Lehn
- Division of Hematology/Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio 45219, USA
| | - HasanAl Reza
- Division of Gastroenterology, Hepatology and Nutrition and Division of Developmental Biology, and Center for Stem Cell and Organoid Medicine (CuSTOM), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio 45229, USA
| | | | | | | | | |
Collapse
|
2
|
Burboa PC, Gaete PS, Shu P, Araujo PA, Beuve AV, Durán WN, Contreras JE, Lillo MA. Endothelial TRPV4/Cx43 Signaling Complex Regulates Vasomotor Tone in Resistance Arteries. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.25.604930. [PMID: 39091840 PMCID: PMC11291137 DOI: 10.1101/2024.07.25.604930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
S-nitrosylation of Cx43 gap junction channels critically regulates communication between smooth muscle cells and endothelial cells. This posttranslational modification also induces the opening of undocked Cx43 hemichannels. However, its specific impact on vasomotor regulation remains unclear. Considering the role of endothelial TRPV4 channel activation in promoting vasodilation through nitric oxide (NO) production, we investigated the direct modulation of endothelial Cx43 hemichannels by TRPV4 channel activation. Using the proximity ligation assay, we identify that Cx43 and TRPV4 are found in close proximity in the endothelium of resistance arteries. In primary endothelial cell cultures from resistance arteries (ECs), GSK-induced TRPV4 activation enhances eNOS activity, increases NO production, and opens Cx43 hemichannels via direct S-nitrosylation. Notably, the elevated intracellular Ca2+ levels caused by TRPV4 activation were reduced by blocking Cx43 hemichannels. In ex vivo mesenteric arteries, inhibiting Cx43 hemichannels reduced endothelial hyperpolarization without affecting NO production in ECs, underscoring a critical role of TRPV4/Cx43 signaling in endothelial electrical behavior. We perturbed the proximity of Cx43/TRPV4 by disrupting lipid rafts in ECs using β-cyclodextrin. Under these conditions, hemichannel activity, Ca2+ influx, and endothelial hyperpolarization were blunted upon GSK stimulation. Intravital microscopy of mesenteric arterioles in vivo further demonstrated that inhibiting Cx43 hemichannels activity, NO production and disrupting endothelial integrity reduce TRPV4-induced relaxation. These findings underscore a new pivotal role of Cx43 hemichannel associated with TRPV4 signaling pathway in modulating endothelial electrical behavior and vasomotor tone regulation.
Collapse
Affiliation(s)
- Pía C. Burboa
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ 07103, U.S.A
| | - Pablo S. Gaete
- Department of Physiology and Membrane Biology, School of Medicine, University of California Davis, Davis, CA, U.S.A
| | - Ping Shu
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ 07103, U.S.A
| | - Priscila A. Araujo
- Department of Physiology and Membrane Biology, School of Medicine, University of California Davis, Davis, CA, U.S.A
| | - Annie V. Beuve
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ 07103, U.S.A
| | - Walter N. Durán
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ 07103, U.S.A
| | - Jorge E. Contreras
- Department of Physiology and Membrane Biology, School of Medicine, University of California Davis, Davis, CA, U.S.A
| | - Mauricio A. Lillo
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ 07103, U.S.A
| |
Collapse
|
3
|
Hu XQ, Zhang L. Role of transient receptor potential channels in the regulation of vascular tone. Drug Discov Today 2024; 29:104051. [PMID: 38838960 DOI: 10.1016/j.drudis.2024.104051] [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: 01/16/2024] [Revised: 05/17/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024]
Abstract
Vascular tone is a major element in the control of hemodynamics. Transient receptor potential (TRP) channels conducting monovalent and/or divalent cations (e.g. Na+ and Ca2+) are expressed in the vasculature. Accumulating evidence suggests that TRP channels participate in regulating vascular tone by regulating intracellular Ca2+ signaling in both vascular smooth muscle cells (VSMCs) and endothelial cells (ECs). Aberrant expression/function of TRP channels in the vasculature is associated with vascular dysfunction in systemic/pulmonary hypertension and metabolic syndromes. This review intends to summarize our current knowledge of TRP-mediated regulation of vascular tone in both physiological and pathophysiological conditions and to discuss potential therapeutic approaches to tackle abnormal vascular tone due to TRP dysfunction.
Collapse
Affiliation(s)
- Xiang-Qun Hu
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, USA.
| | - Lubo Zhang
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, USA.
| |
Collapse
|
4
|
Chen YQ, Wu MC, Wei MT, Kuo JC, Yu HW, Chiou A. High-viscosity driven modulation of biomechanical properties of human mesenchymal stem cells promotes osteogenic lineage. Mater Today Bio 2024; 26:101058. [PMID: 38681057 PMCID: PMC11046220 DOI: 10.1016/j.mtbio.2024.101058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/10/2024] [Accepted: 04/13/2024] [Indexed: 05/01/2024] Open
Abstract
Biomechanical cues could effectively govern cell gene expression to direct the differentiation of specific stem cell lineage. Recently, the medium viscosity has emerged as a significant mechanical stimulator that regulates the cellular mechanical properties and various physiological functions. However, whether the medium viscosity can regulate the mechanical properties of human mesenchymal stem cells (hMSCs) to effectively trigger osteogenic differentiation remains uncertain. The mechanism by which cells sense and respond to changes in medium viscosity, and regulate cell mechanical properties to promote osteogenic lineage, remains elusive. In this study, we demonstrated that hMSCs, cultured in a high-viscosity medium, exhibited larger cell spreading area and higher intracellular tension, correlated with elevated formation of actin stress fibers and focal adhesion maturation. Furthermore, these changes observed in hMSCs were associated with activation of TRPV4 (transient receptor potential vanilloid sub-type 4) channels on the cell membrane. This feedback loop among TRPV4 activation, cell spreading and intracellular tension results in calcium influx, which subsequently promotes the nuclear localization of NFATc1 (nuclear factor of activated T cells 1). Concomitantly, the elevated intracellular tension induced nuclear deformation and promoted the nuclear localization of YAP (YES-associated protein). The concurrent activation of NFATc1 and YAP significantly enhanced alkaline phosphatase (ALP) for pre-osteogenic activity. Taken together, these findings provide a more comprehensive view of how viscosity-induced alterations in biomechanical properties of MSCs impact the expression of osteogenesis-related genes, and ultimately promote osteogenic lineage.
Collapse
Affiliation(s)
- Yin-Quan Chen
- Cancer Progression Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ming-Chung Wu
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ming-Tzo Wei
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, USA
| | - Jean-Cheng Kuo
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Helen Wenshin Yu
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Arthur Chiou
- Institute of Biophotonics, National Yang Ming Chiao Tung University, Taipei, Taiwan
| |
Collapse
|
5
|
Flori L, Benedetti G, Calderone V, Testai L. Hydrogen Sulfide and Irisin, Potential Allies in Ensuring Cardiovascular Health. Antioxidants (Basel) 2024; 13:543. [PMID: 38790648 PMCID: PMC11118251 DOI: 10.3390/antiox13050543] [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: 03/13/2024] [Revised: 04/19/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024] Open
Abstract
Irisin is a myokine secreted under the influence of physical activity and exposure to low temperatures and through different exogenous stimuli by the cleavage of its precursor, fibronectin type III domain-containing protein 5 (FNDC5). It is mainly known for maintaining of metabolic homeostasis, promoting the browning of white adipose tissue, the thermogenesis process, and glucose homeostasis. Growing experimental evidence suggests the possible central role of irisin in the regulation of cardiometabolic pathophysiological processes. On the other side, hydrogen sulfide (H2S) is well recognized as a pleiotropic gasotransmitter that regulates several homeostatic balances and physiological functions and takes part in the pathogenesis of cardiometabolic diseases. Through the S-persulfidation of cysteine protein residues, H2S is capable of interacting with crucial signaling pathways, exerting beneficial effects in regulating glucose and lipid homeostasis as well. H2S and irisin seem to be intertwined; indeed, recently, H2S was found to regulate irisin secretion by activating the peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α)/FNDC5/irisin signaling pathway, and they share several mechanisms of action. Their involvement in metabolic diseases is confirmed by the detection of their lower circulating levels in obese and diabetic subjects. Along with the importance of metabolic disorders, these modulators exert favorable effects against cardiovascular diseases, preventing incidents of hypertension, atherosclerosis, heart failure, myocardial infarction, and ischemia-reperfusion injury. This review, for the first time, aims to explore the role of H2S and irisin and their possible crosstalk in cardiovascular diseases, pointing out the main effects exerted through the common molecular pathways involved.
Collapse
Affiliation(s)
- Lorenzo Flori
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56120 Pisa, Italy; (L.F.); (G.B.); (V.C.)
| | - Giada Benedetti
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56120 Pisa, Italy; (L.F.); (G.B.); (V.C.)
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56120 Pisa, Italy; (L.F.); (G.B.); (V.C.)
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56120 Pisa, Italy
- Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, 56120 Pisa, Italy
| | - Lara Testai
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56120 Pisa, Italy; (L.F.); (G.B.); (V.C.)
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56120 Pisa, Italy
- Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, 56120 Pisa, Italy
| |
Collapse
|
6
|
Omi M, Yamada H, Takahashi H, Mori H, Oba S, Hattori Y, Yokota K, Toyama K, Takahashi K. Differences in collateral vessel formation after experimental retinal vein occlusion in spontaneously hypertensive rats and wild-type rats. Heliyon 2024; 10:e27160. [PMID: 38509953 PMCID: PMC10950832 DOI: 10.1016/j.heliyon.2024.e27160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/16/2024] [Accepted: 02/26/2024] [Indexed: 03/22/2024] Open
Abstract
Objective Retinal vein occlusion (RVO) can lead to visual impairment, but the development of collateral vessels can sometimes mitigate significant damage. This study aimed to investigate the relationship between collateral vessels and hypertension, the most common underlying condition associated with RVO, by comparing spontaneously hypertensive rats (SHRs) and wild-type Wister rats (WWRs). We also examined the differences between WWRs and SHRs in terms of sphingosine 1-phosphate receptor 1 (S1PR1) expression and its product nitric oxide synthase 3 (NOS3) expression, which are involved in the formation of collateral vessels after vascular occlusion. Methods Laser photocoagulation (PC) was used to occlude one randomly selected retinal vein in WWRs and SHRs, and the area surrounding the occluded vessel was examined using optical coherence tomography angiography. If reperfusion of the occluded vessel occurred within 2 weeks, the vessel was re-occluded repeatedly by PC. The number of eyes with successfully occluded vessels accompanied by collateral vessels was recorded. Then, WWRs and SHRs were divided into the following four groups: 1) control (no treatment), 2) vehicle (20% DMSO), 3) S1PR1 agonist (2 mg/mL SEW2871), and 4) S1PR1 antagonist (0.25 mg/mL VPC 23019) groups. The drugs were administered intravitreally in all groups except the control. The number of laser shots required for successful RVO was recorded. Histological evaluation and quantitative real-time PCR of S1PR1 and NOS3 were performed to elucidate the mechanisms underlying collateral vessel formation. Results The proportion of eyes achieving successful vein occlusion was lower in SHRs (4/12 eyes, 33.3%) than in WWRs (8/10 eyes, 80%, p = 0.043). NOS3 expression at 6 h after PC was significantly higher in WWRs than in SHRs (p = 0.021). In WWRs treated with SEW2871, vein occlusion failed in 7 of 10 eyes (70%). The expression of NOS3 was significantly higher in the SEW2871 treatment group than in the untreated group (p < 0.001). Furthermore, NOS3 expression was significantly higher after SEW2871 treatment in WWRs than in SHRs (p = 0.011). Conclusion In hypertensive environments, collateral vessels are less likely to develop, and S1PR1 may be involved in this phenomenon.
Collapse
Affiliation(s)
- Masatoshi Omi
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Haruhiko Yamada
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Hajime Takahashi
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Hidetsugu Mori
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Shimpei Oba
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Yuki Hattori
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Kaito Yokota
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Keiko Toyama
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Kanji Takahashi
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| |
Collapse
|
7
|
Jing L, Liu K, Wang F, Su Y. Role of mechanically-sensitive cation channels Piezo1 and TRPV4 in trabecular meshwork cell mechanotransduction. Hum Cell 2024; 37:394-407. [PMID: 38316716 DOI: 10.1007/s13577-024-01035-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/17/2024] [Indexed: 02/07/2024]
Abstract
Glaucoma is one of the leading causes of irreversible blindness in developed countries, and intraocular pressure (IOP) is primary and only treatable risk factor, suggesting that to a significant extent, glaucoma is a disease of IOP disorder and pathological mechanotransduction. IOP-lowering ways are limited to decreaseing aqueous humour (AH) production or increasing the uveoscleral outflow pathway. Still, therapeutic approaches have been lacking to control IOP by enhancing the trabecular meshwork (TM) pathway. Trabecular meshwork cells (TMCs) have endothelial and myofibroblast properties and are responsible for the renewal of the extracellular matrix (ECM). Mechanosensitive cation channels, including Piezo1 and TRPV4, are abundantly expressed in primary TMCs and trigger mechanostress-dependent ECM and cytoskeletal remodelling. However, prolonged mechanical stimulation severely affects cellular biosynthesis through TMC mechanotransduction, including signaling, gene expression, ECM remodelling, and cytoskeletal structural changes, involving outflow facilities and elevating IOP. As for the functional coupling relationship between Piezo1 and TRPV4 channels, inspired by VECs and osteoblasts, we hypothesized that Piezo1 may also act upstream of TRPV4 in glaucomatous TM tissue, mediating the activation of TRPV4 via Ca2+ inflow or Ca2+ binding to phospholipase A2(PLA2), and thus be involved in increasing TM outflow resistance and elevated IOP. Therefore, this review aims to help identify new potential targets for IOP stabilization in ocular hypertension and primary open-angle glaucoma by understanding the mechanical transduction mechanisms associated with the development of glaucoma and may provide ideas into novel treatments for preventing the progression of glaucoma by targeting mechanotransduction.
Collapse
Affiliation(s)
- Lingling Jing
- Department of Ophthalmology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Kexin Liu
- Department of Ophthalmology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Feng Wang
- Department of Ophthalmology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, China.
| | - Ying Su
- Eye Hospital, The First Affiliated Hospital, Harbin Medical University, Harbin, China.
| |
Collapse
|
8
|
Lim XR, Harraz OF. Mechanosensing by Vascular Endothelium. Annu Rev Physiol 2024; 86:71-97. [PMID: 37863105 PMCID: PMC10922104 DOI: 10.1146/annurev-physiol-042022-030946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Mechanical forces influence different cell types in our bodies. Among the earliest forces experienced in mammals is blood movement in the vascular system. Blood flow starts at the embryonic stage and ceases when the heart stops. Blood flow exposes endothelial cells (ECs) that line all blood vessels to hemodynamic forces. ECs detect these mechanical forces (mechanosensing) through mechanosensors, thus triggering physiological responses such as changes in vascular diameter. In this review, we focus on endothelial mechanosensing and on how different ion channels, receptors, and membrane structures detect forces and mediate intricate mechanotransduction responses. We further highlight that these responses often reflect collaborative efforts involving several mechanosensors and mechanotransducers. We close with a consideration of current knowledge regarding the dysregulation of endothelial mechanosensing during disease. Because hemodynamic disruptions are hallmarks of cardiovascular disease, studying endothelial mechanosensing holds great promise for advancing our understanding of vascular physiology and pathophysiology.
Collapse
Affiliation(s)
- Xin Rui Lim
- Department of Pharmacology, Larner College of Medicine and Vermont Center for Cardiovascular and Brain Health, University of Vermont, Burlington, Vermont, USA;
| | - Osama F Harraz
- Department of Pharmacology, Larner College of Medicine and Vermont Center for Cardiovascular and Brain Health, University of Vermont, Burlington, Vermont, USA;
| |
Collapse
|
9
|
DuToit J, Brothers P, Stephens M, Keane K, de Jesus FN, Roizes S, von der Weid PY. Flow-dependent regulation of rat mesenteric lymphatic vessel contractile response requires activation of endothelial TRPV4 channels. Microcirculation 2024; 31:e12839. [PMID: 38044795 DOI: 10.1111/micc.12839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 11/06/2023] [Accepted: 11/22/2023] [Indexed: 12/05/2023]
Abstract
OBJECTIVES The objective of our study is to evaluate the involvement of the transient receptor potential vanilloid 4 (TRPV4) in the alteration of lymphatic pumping in response to flow and determine the signaling pathways involved. METHODS We used immunofluorescence imaging and western blotting to assess TRPV4 expression in rat mesenteric lymphatic vessels. We examined inhibition of TRPV4 with HC067047, nitric oxide synthase (NOS) with L-NNA and cyclooxygenases (COXs) with indomethacin on the contractile response of pressurized lymphatic vessels to flow changes induced by a stepwise increase in pressure gradients, and the functionality of endothelial TRPV4 channels by measuring the intracellular Ca2+ response of primary lymphatic endothelial cell cultures to the selective agonist GSK1016790A. RESULTS TRPV4 protein was expressed in both the endothelial and the smooth muscle layer of rat mesenteric lymphatics with high endothelial expression around the valve sites. When maintained under constant transmural pressure, most lymphatic vessels displayed a decrease in contraction frequency under conditions of flow and this effect was ablated through inhibition of NOS, COX or TRPV4. CONCLUSIONS Our findings demonstrate a critical role for TRPV4 in the decrease in contraction frequency induced in lymphatic vessels by increases in flow rate via the production and action of nitric oxide and dilatory prostanoids.
Collapse
Affiliation(s)
- Jacques DuToit
- Inflammation Research Network, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Department of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Peter Brothers
- Inflammation Research Network, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Department of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Matthew Stephens
- Inflammation Research Network, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Department of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Keith Keane
- Inflammation Research Network, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Department of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Flavia Neto de Jesus
- Inflammation Research Network, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Department of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Simon Roizes
- Inflammation Research Network, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Department of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Pierre-Yves von der Weid
- Inflammation Research Network, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Department of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| |
Collapse
|
10
|
Yu C, Li X, Ma J, Liang S, Zhao Y, Li Q, Zhang R. Spatiotemporal modulation of nitric oxide and Notch signaling by hemodynamic-responsive Trpv4 is essential for ventricle regeneration. Cell Mol Life Sci 2024; 81:60. [PMID: 38279064 PMCID: PMC10817848 DOI: 10.1007/s00018-023-05092-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 01/28/2024]
Abstract
Zebrafish have a remarkable ability to regenerate injured hearts. Altered hemodynamic forces after larval ventricle ablation activate the endocardial Klf2a-Notch signaling cascade to direct zebrafish cardiac regeneration. However, how the heart perceives blood flow changes and initiates signaling pathways promoting regeneration is not fully understood. The present study demonstrated that the mechanosensitive channel Trpv4 sensed the altered hemodynamic forces in injured hearts and its expression was regulated by blood flow. In addition to mediating the endocardial Klf2a-Notch signal cascade around the atrioventricular canal (AVC), we discovered that Trpv4 regulated nitric oxide (NO) signaling in the bulbus arteriosus (BA). Further experiments indicated that Notch signaling primarily acted at the early stage of regeneration, and the major role of NO signaling was at the late stage and through TGF-β pathway. Overall, our findings revealed that mechanosensitive channels perceived the changes in hemodynamics after ventricle injury, and provide novel insights into the temporal and spatial coordination of multiple signaling pathways regulating heart regeneration.
Collapse
Affiliation(s)
- Chunxiao Yu
- TaiKang Medical School, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xueyu Li
- School of Life Sciences, Fudan University, Shanghai, 200433, China
| | - Jinmin Ma
- Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, China
| | - Shuzhang Liang
- School of Life Sciences, Fudan University, Shanghai, 200433, China
| | - Yan Zhao
- TaiKang Medical School, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Qi Li
- TaiKang Medical School, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Ruilin Zhang
- TaiKang Medical School, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China.
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430071, China.
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
| |
Collapse
|
11
|
Beverley KM, Levitan I. Cholesterol regulation of mechanosensitive ion channels. Front Cell Dev Biol 2024; 12:1352259. [PMID: 38333595 PMCID: PMC10850386 DOI: 10.3389/fcell.2024.1352259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024] Open
Abstract
The purpose of this review is to evaluate the role of cholesterol in regulating mechanosensitive ion channels. Ion channels discussed in this review are sensitive to two types of mechanical signals, fluid shear stress and/or membrane stretch. Cholesterol regulates the channels primarily in two ways: 1) indirectly through localizing the channels into cholesterol-rich membrane domains where they interact with accessory proteins and/or 2) direct binding of cholesterol to the channel at specified putative binding sites. Cholesterol may also regulate channel function via changes of the biophysical properties of the membrane bilayer. Changes in cholesterol affect both mechanosensitivity and basal channel function. We focus on four mechanosensitive ion channels in this review Piezo, Kir2, TRPV4, and VRAC channels. Piezo channels were shown to be regulated by auxiliary proteins that enhance channel function in high cholesterol domains. The direct binding mechanism was shown in Kir2.1 and TRPV4 where cholesterol inhibits channel function. Finally, cholesterol regulation of VRAC was attributed to changes in the physical properties of lipid bilayer. Additional studies should be performed to determine the physiological implications of these sterol effects in complex cellular environments.
Collapse
Affiliation(s)
- Katie M. Beverley
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Irena Levitan
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| |
Collapse
|
12
|
Hong J, Park Y. Microvascular Function and Exercise Training: Functional Implication of Nitric Oxide Signaling and Ion Channels. Pulse (Basel) 2024; 12:27-33. [PMID: 38572498 PMCID: PMC10987185 DOI: 10.1159/000538271] [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: 12/28/2023] [Accepted: 02/29/2024] [Indexed: 04/05/2024] Open
Abstract
Background Exercise training elicits indubitable positive adaptation in microcirculation in health and disease populations. An inclusive overview of the current knowledge regarding the effects of exercise on microvascular function consolidates an in-depth understanding of microvasculature. Summary The main physiological function of microvasculature is to maintain optimal blood flow regulation to supply oxygen and nutrition during elevated physical demands in the cardiovascular system. There are several cellular and molecular alterations in resistance vessels in response to exercise intervention, an increase in nitric oxide-mediated vasodilation through the regulation of oxidative stress, inflammatory response, and ion channels in endothelial cells, thus increasing myogenic tone via voltage-gated Ca2+ channels in smooth muscle cells. Key Messages In the review, we postulate that exercise should be considered a medicine for people with diverse diseases through a comprehensive understanding of the cellular and molecular underlying mechanisms in microcirculation through exercise training.
Collapse
Affiliation(s)
- Junyoung Hong
- Department of Health and Human Performance, Laboratory of Integrated Physiology, University of Houston, Houston, TX, USA
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Yoonjung Park
- Department of Health and Human Performance, Laboratory of Integrated Physiology, University of Houston, Houston, TX, USA
| |
Collapse
|
13
|
Yamamoto K, Shimogonya Y, Maeno R, Kawabe K, Ando J. Endothelial cells differentially sense laminar and disturbed flows by altering the lipid order of their plasma and mitochondrial membranes. Am J Physiol Cell Physiol 2023; 325:C1532-C1544. [PMID: 37927239 PMCID: PMC10861177 DOI: 10.1152/ajpcell.00393.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/19/2023] [Accepted: 10/28/2023] [Indexed: 11/07/2023]
Abstract
Endothelial cells (ECs) experience two different blood flow patterns: laminar and disturbed flow. Their responses to laminar flow contribute to vascular homeostasis, whereas their responses to disturbed flow result in EC dysfunction and vascular diseases. However, it remains unclear how ECs differentially sense laminar and disturbed flow and trigger signaling that elicits different responses. Here, we showed that ECs differentially sense laminar and disturbed flows by altering the lipid order of their plasma and mitochondrial membranes in opposite directions. This results in distinct changes in mitochondrial function, namely, increased adenosine triphosphate (ATP) production for laminar flow and increased hydrogen peroxide (H2O2) release for disturbed flow, leading to ATP- and H2O2-mediated signaling, respectively. When cultured human aortic ECs were subjected to laminar or disturbed flow in flow-loading devices, the lipid order of their plasma membranes immediately decreased in response to laminar flow and increased in response to disturbed flow. Laminar flow also decreased the lipid order of mitochondrial membranes and increased mitochondrial ATP production. In contrast, disturbed flow increased the lipid order of mitochondrial membranes and increased the release of H2O2 from the mitochondria. The addition of cholesterol to the cells increased the lipid order of both membranes and abrogated laminar flow-induced ATP production, while treatment of the cells with a cholesterol-depleting reagent, methyl-β cyclodextrin, decreased the lipid order of both membranes and abolished disturbed flow-induced H2O2 release, indicating that changes in the membrane lipid order and/or cholesterol content are closely linked to flow-induced changes in mitochondrial functions.NEW & NOTEWORTHY How vascular endothelial cells (ECs) differentially sense laminar and disturbed flows and trigger intracellular signaling remains unclear. Here, we show that EC plasma membranes act as mechanosensors to discriminate between laminar and disturbed flows by undergoing opposite changes in their lipid order. Similar lipid order changes occur simultaneously in the mitochondrial membranes, which are linked to changes in mitochondrial function, that is, increased ATP production for laminar flow and increased H2O2 release for disturbed flow.
Collapse
Affiliation(s)
- Kimiko Yamamoto
- Laboratory of System Physiology, Department of Biomedical Engineering, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuji Shimogonya
- Department of Mechanical Engineering, College of Engineering, Nihon University, Koriyama, Japan
| | - Ryohei Maeno
- Laboratory of System Physiology, Department of Biomedical Engineering, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kenshiroh Kawabe
- Laboratory of System Physiology, Department of Biomedical Engineering, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Joji Ando
- Laboratory of Biomedical Engineering, School of Medicine, Dokkyo Medical University, Tochigi, Japan
| |
Collapse
|
14
|
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.
Collapse
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
| |
Collapse
|
15
|
Mata-Daboin A, Garrud TAC, Fernandez-Pena C, Peixoto-Neves D, Leo MD, Bernardelli AK, Singh P, Malik KU, Jaggar JH. Vasodilators activate the anion channel TMEM16A in endothelial cells to reduce blood pressure. Sci Signal 2023; 16:eadh9399. [PMID: 37963195 PMCID: PMC10694922 DOI: 10.1126/scisignal.adh9399] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 10/20/2023] [Indexed: 11/16/2023]
Abstract
Systemic blood pressure is acutely controlled by total peripheral resistance as determined by the diameter of small arteries and arterioles, the contractility of which is regulated by endothelial cells lining the lumen of blood vessels. We investigated the physiological functions of the chloride (Cl-) channel TMEM16A in endothelial cells. TMEM16A channels generated calcium (Ca2+)-activated Cl- currents in endothelial cells from control (TMEM16Afl/fl) mice that were absent in those from mice with tamoxifen-inducible, endothelial cell-specific knockout of TMEM16A (TMEM16A ecKO). TMEM16A currents in endothelial cells were activated by the muscarinic receptor agonist acetylcholine and an agonist of the Ca2+ channel TRPV4, which localized in nanoscale proximity with TMEM16A as assessed by single-molecule localization imaging of endothelial cells. Acetylcholine stimulated TMEM16A currents by activating Ca2+ influx through surface TRPV4 channels without altering the nanoscale properties of TMEM16A and TRPV4 surface clusters or their colocalization. In pressurized arteries, activation of TMEM16A channels in endothelial cells induced by acetylcholine; TRPV4 channel stimulation; or intraluminal ATP, another vasodilator, produced hyperpolarization and dilation. Furthermore, deficiency of TMEM16A channels in endothelial cells resulted in increased systemic blood pressure in conscious mice. These data indicate that vasodilators stimulate TRPV4 channels, leading to Ca2+-dependent activation of nearby TMEM16A channels in endothelial cells to produce arterial hyperpolarization, vasodilation, and reduced blood pressure. Thus, TMEM16A is an anion channel in endothelial cells that regulates arterial contractility and blood pressure.
Collapse
Affiliation(s)
- Alejandro Mata-Daboin
- Department of Physiology, University of Tennessee Health Science Center, Memphis TN 38163
| | - Tessa A. C. Garrud
- Department of Physiology, University of Tennessee Health Science Center, Memphis TN 38163
| | - Carlos Fernandez-Pena
- Department of Physiology, University of Tennessee Health Science Center, Memphis TN 38163
| | | | - M. Dennis Leo
- Department of Physiology, University of Tennessee Health Science Center, Memphis TN 38163
| | | | - Purnima Singh
- Department of Pharmacology, University of Tennessee Health Science Center, Memphis TN 38163
| | - Kafait U. Malik
- Department of Pharmacology, University of Tennessee Health Science Center, Memphis TN 38163
| | - Jonathan H. Jaggar
- Department of Physiology, University of Tennessee Health Science Center, Memphis TN 38163
| |
Collapse
|
16
|
Wen X, Peng Y, Peng Y, Zhu Y, Yu F, Geng L, Zhou T, Wang X, Feng L, Meng Q. Aortic smooth muscle TRPV4 channels regulate vasoconstriction in high salt-induced hypertension. Hypertens Res 2023; 46:2356-2367. [PMID: 37532951 DOI: 10.1038/s41440-023-01363-2] [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: 02/14/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 08/04/2023]
Abstract
Recent studies have focused on the contribution of vascular endothelial transient receptor potential vanilloid 4 (TRPV4) channels to hypertension. However, in hypertension, TRPV4 channels in vascular smooth muscle remain unexplored. In the present study, we performed wire myograph experiments in isolated aortas from endothelial cell specific TRPV4 channel knockout (TRPV4EC-/-) mice to demonstrate that GSK1016790A (a specific TRPV4 channel agonist) triggered aortic smooth muscle-dependent contractions from mice on a normal-salt diet, and the contractions were enhanced in high-salt diet (HSD) mice. Intracellular Ca2+ concentration ([Ca2+]i) and Ca2+ imaging assays showed that TRPV4-induced [Ca2+]i was significantly higher in aortic smooth muscle cells (ASMCs) from HSD-induced hypertensive mice, and application of an inositol trisphosphate receptor (IP3R) inhibitor markedly attenuated TRPV4-induced [Ca2+]i. IP3R2 expression was enhanced in ASMCs from HSD-induced hypertensive mice and the contractile response induced by TRPV4 was inhibited by the IP3R inhibitor. Whole-transcriptome analysis by RNA-seq and western blot assays revealed the involvement of interferon regulatory factor 7 (IRF7) in TRPV4-IRF7-IP3R2 signaling in HSD-induced hypertension. These results suggested that TRPV4 channels regulate smooth muscle-dependent contractions in high salt-induced hypertension, and this contraction involves increased [Ca2+]i, IP3R2, and IRF7 activity. Our study revealed a considerable effect of TRPV4 channels in smooth muscle-dependent contraction in mice during high-salt induced hypertension.
Collapse
Affiliation(s)
- Xin Wen
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Yidi Peng
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214000, China
| | - Yuefeng Peng
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Yuzhong Zhu
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Fan Yu
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Li Geng
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Tingting Zhou
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Xianfeng Wang
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Lei Feng
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China
| | - Qingyou Meng
- Department of Vascular Surgery, General Surgery Clinical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| |
Collapse
|
17
|
Endesh N, Chuntharpursat‐Bon E, Revill C, Yuldasheva NY, Futers TS, Parsonage G, Humphreys N, Adamson A, Morley LC, Cubbon RM, Prasad KR, Foster R, Lichtenstein L, Beech DJ. Independent endothelial functions of PIEZO1 and TRPV4 in hepatic portal vein and predominance of PIEZO1 in mechanical and osmotic stress. Liver Int 2023; 43:2026-2038. [PMID: 37349903 PMCID: PMC10946873 DOI: 10.1111/liv.15646] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/27/2023] [Accepted: 05/31/2023] [Indexed: 06/24/2023]
Abstract
BACKGROUND & AIMS PIEZO1 and TRPV4 are mechanically and osmotically regulated calcium-permeable channels. The aim of this study was to determine the relevance and relationship of these channels in the contractile tone of the hepatic portal vein, which experiences mechanical and osmotic variations as it delivers blood to the liver from the intestines, gallbladder, pancreas and spleen. METHODS Wall tension was measured in freshly dissected portal veins from adult male mice, which were genetically unmodified or modified for either a non-disruptive tag in native PIEZO1 or endothelial-specific PIEZO1 deletion. Pharmacological agents were used to activate or inhibit PIEZO1, TRPV4 and associated pathways, including Yoda1 and Yoda2 for PIEZO1 and GSK1016790A for TRPV4 agonism, respectively. RESULTS PIEZO1 activation leads to nitric oxide synthase- and endothelium-dependent relaxation of the portal vein. TRPV4 activation causes contraction, which is also endothelium-dependent but independent of nitric oxide synthase. The TRPV4-mediated contraction is suppressed by inhibitors of phospholipase A2 and cyclooxygenases and mimicked by prostaglandin E2 , suggesting mediation by arachidonic acid metabolism. TRPV4 antagonism inhibits the effect of agonising TRPV4 but not PIEZO1. Increased wall stretch and hypo-osmolality inhibit TRPV4 responses while lacking effects on or amplifying PIEZO1 responses. CONCLUSIONS The portal vein contains independently functioning PIEZO1 channels and TRPV4 channels in the endothelium, the pharmacological activation of which leads to opposing effects of vessel relaxation (PIEZO1) and contraction (TRPV4). In mechanical and osmotic strain, the PIEZO1 mechanism dominates. Modulators of these channels could present important new opportunities for manipulating liver perfusion and regeneration in disease and surgical procedures.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Neil Humphreys
- Faculty of Biology, Medicine and HealthUniversity of ManchesterManchesterUK
| | - Antony Adamson
- Faculty of Biology, Medicine and HealthUniversity of ManchesterManchesterUK
| | | | | | - K. Raj Prasad
- Department of Hepatobiliary and Transplant SurgerySt James's University HospitalLeedsUK
| | | | | | | |
Collapse
|
18
|
Liu G, Liu J, Kong X, Xiong WJ, Jiang R. Effect of hypoandrogenism on expression of transient receptor potential vanilloid channels in rat penile corpus cavernosum and erectile function. J Sex Med 2023; 20:1153-1160. [PMID: 37490314 DOI: 10.1093/jsxmed/qdad093] [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: 03/07/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Hypoandrogenism is a cause of erectile dysfunction (ED). Vascular smooth muscle cell contraction and relaxation are regulated by TRPV1-4 channels. However, the influence of hypoandrogenism on TRPV1-4 and its relationship with erectile function remain unclear. AIM To reveal whether hypoandrogenism affects erectile function by influencing TRPV1-4 expression in the corpus cavernosum of rats. METHODS Male Sprague-Dawley rats (N = 36) aged 8 weeks were assigned to 6 groups at random (n = 6): sham operation, castrated, castrated + testosterone replacement, sham operation + transfection, castrated + transfection, and castrated + empty transfection. Four weeks after castration, 20 μL of lentiviral vector (1 × 108 TU/mL) carrying the TRPV4 gene was injected into the penile cavernous tissue of the transfection groups. One week after transfection, the maximum intracavernous pressure (ICPmax)/mean arterial pressure (MAP) and the content of TRPV1-4, phosphorylated eNOS (p-eNOS)/eNOS, and nitric oxide (NO) in penile cavernous tissue of each group were measured. OUTCOMES Under low androgen conditions, TRPV4 expression in endothelial cells in the rat penile cavernosum was sharply reduced, resulting in a decrease in p-eNOS/eNOS and NO content, which could inhibit erectile function. RESULTS In rat penile cavernous tissue, TRPV1-4 was expressed in the cell membranes of endothelial cells and smooth muscle cells. The ICPmax/MAP and the content of TRPV4, p-eNOS/eNOS, and NO end product nitrite level in rat penile cavernous tissue was markedly reduced in the castrated group as compared with the sham group (P < .05). The ICPmax/MAP and the content of TRPV4, p-eNOS/eNOS, and NO end product nitrite level in rat penile cavernous tissue were markedly improved in the castrated + transfection group vs the castrated group (P < .01). CLINICAL IMPLICATIONS Upregulation of TRPV4 expression in penile cavernosum tissue might be a viable therapeutic for ED caused by hypoandrogenism. STRENGTHS AND LIMITATIONS The specific mechanism of TRPV4 in ED needs to be further verified by androgen receptor or TRPV4 gene knockout experiments. CONCLUSION Hypoandrogenism may cause ED by reducing the expression of TRPV4 in rat penile cavernous tissue. Upregulation of TRPV4 expression in penile cavernous tissue can increase the ratio of p-eNOS/eNOS and NO levels and ameliorate the erectile function of castrated rats.
Collapse
Affiliation(s)
- Gang Liu
- Department of Urology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Jing Liu
- Department of Urology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Xiangjun Kong
- Department of Urology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Wen-Ju Xiong
- Department of Urology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Rui Jiang
- Department of Urology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| |
Collapse
|
19
|
Luik AL, Hannocks MJ, Loismann S, Kapupara K, Cerina M, van der Stoel M, Tsytsyura Y, Glyvuk N, Nordenvall C, Klingauf J, Huveneers S, Meuth S, Jakobsson L, Sorokin L. Endothelial basement membrane laminins - new players in mouse and human myoendothelial junctions and shear stress communication. Matrix Biol 2023; 121:56-73. [PMID: 37311512 DOI: 10.1016/j.matbio.2023.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/15/2023]
Abstract
Basement membranes (BMs) are critical but frequently ignored components of the vascular system. Using high-resolution confocal imaging of whole-mount-stained mesenteric arteries, we identify integrins, vinculin, focal adhesion kinase (FAK) and several BM proteins including laminins as novel components of myoendothelial junctions (MEJs), anatomical microdomains that are emerging as regulators of cross-talk between endothelium and smooth muscle cells (SMCs). Electron microscopy revealed multiple layers of the endothelial BM that surround endothelial projections into the smooth muscle layer as structural characteristics of MEJs. The shear-responsive calcium channel TRPV4 is broadly distributed in endothelial cells and occurs in a proportion of MEJs where it localizes to the tips of the endothelial projections that are in contact with the underlying SMCs. In mice lacking the major endothelial laminin isoform, laminin 411 (Lama4-/-), which we have previously shown over-dilate in response to shear and exhibit a compensatory laminin 511 upregulation, localization of TRPV4 at the endothelial-SMC interface in MEJs was increased. Endothelial laminins do not affect TRPV4 expression, rather in vitro electrophysiology studies using human umbilical cord arterial endothelial cells revealed enhanced TRPV4 signalling upon culturing on an RGD-motif containing domain of laminin 511. Hence, integrin-mediated interactions with laminin 511 in MEJ structures unique to resistance arteries modulate TRPV4 localization at the endothelial-smooth muscle interface in MEJs and signalling over this shear-response molecule.
Collapse
Affiliation(s)
- Anna-Liisa Luik
- Institute of Physiological Chemistry and Pathobiochemistry; Cells in Motion Interfaculty Centre
| | - Melanie-Jane Hannocks
- Institute of Physiological Chemistry and Pathobiochemistry; Cells in Motion Interfaculty Centre
| | - Sophie Loismann
- Institute of Physiological Chemistry and Pathobiochemistry; Cells in Motion Interfaculty Centre
| | - Kishan Kapupara
- Institute of Physiological Chemistry and Pathobiochemistry; Cells in Motion Interfaculty Centre
| | - Manuela Cerina
- Cells in Motion Interfaculty Centre; Institute of Translational Neurology and Department of Neurology, University of Muenster, Germany
| | - Miesje van der Stoel
- Dept of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centre, the Netherlands
| | - Yaroslav Tsytsyura
- Institute of Medical Physics and Biophysics, University of Münster, Germany
| | - Nataliya Glyvuk
- Institute of Medical Physics and Biophysics, University of Münster, Germany
| | - Caroline Nordenvall
- Dept of Molecular Medicine and Surgery, Karolinska Institute, Sweden; Dept of Pelvic Cancer, GI Oncology and Colorectal Surgery Unit, Karolinska University Hospital, Sweden
| | - Jürgen Klingauf
- Institute of Medical Physics and Biophysics, University of Münster, Germany
| | - Stephan Huveneers
- Dept of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centre, the Netherlands
| | - Sven Meuth
- Cells in Motion Interfaculty Centre; Institute of Translational Neurology and Department of Neurology, University of Muenster, Germany; Neurology Clinic, Medical Faculty, University of Düsseldorf, Germany
| | - Lars Jakobsson
- Dept of Medical Biochemistry and Biophysics, Karolinska Institute, Sweden
| | - Lydia Sorokin
- Institute of Physiological Chemistry and Pathobiochemistry; Cells in Motion Interfaculty Centre.
| |
Collapse
|
20
|
Peixoto-Neves D, Yadav S, MacKay CE, Mbiakop UC, Mata-Daboin A, Leo MD, Jaggar JH. Vasodilators mobilize SK3 channels in endothelial cells to produce arterial relaxation. Proc Natl Acad Sci U S A 2023; 120:e2303238120. [PMID: 37494394 PMCID: PMC10401010 DOI: 10.1073/pnas.2303238120] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/20/2023] [Indexed: 07/28/2023] Open
Abstract
Endothelial cells (ECs) line the lumen of all blood vessels and regulate functions, including contractility. Physiological stimuli, such as acetylcholine (ACh) and intravascular flow, activate transient receptor potential vanilloid 4 (TRPV4) channels, which stimulate small (SK3)- and intermediate (IK)-conductance Ca2+-activated potassium channels in ECs to produce vasodilation. Whether physiological vasodilators also modulate the surface abundance of these ion channels in ECs to elicit functional responses is unclear. Here, we show that ACh and intravascular flow stimulate rapid anterograde trafficking of an intracellular pool of SK3 channels in ECs of resistance-size arteries, which increases surface SK3 protein more than two-fold. In contrast, ACh and flow do not alter the surface abundance of IK or TRPV4 channels. ACh triggers SK3 channel trafficking by activating TRPV4-mediated Ca2+ influx, which stimulates Rab11A, a Rab GTPase associated with recycling endosomes. Superresolution microscopy data demonstrate that SK3 trafficking specifically increases the size of surface SK3 clusters which overlap with TRPV4 clusters. We also show that Rab11A-dependent trafficking of SK3 channels is an essential contributor to vasodilator-induced SK current activation in ECs and vasorelaxation. In summary, our data demonstrate that vasodilators activate Rab11A, which rapidly delivers an intracellular pool of SK3 channels to the vicinity of surface TRPV4 channels in ECs. This trafficking mechanism increases surface SK3 cluster size, elevates SK3 current density, and produces vasodilation. These data also demonstrate that SK3 and IK channels are differentially regulated by trafficking-dependent and -independent signaling mechanisms in endothelial cells.
Collapse
Affiliation(s)
| | - Shambhu Yadav
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| | - Charles E. MacKay
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| | - Ulrich C. Mbiakop
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| | - Alejandro Mata-Daboin
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| | - M. Dennis Leo
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| | - Jonathan H. Jaggar
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| |
Collapse
|
21
|
Chaigne S, Barbeau S, Ducret T, Guinamard R, Benoist D. Pathophysiological Roles of the TRPV4 Channel in the Heart. Cells 2023; 12:1654. [PMID: 37371124 DOI: 10.3390/cells12121654] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/10/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
The transient receptor potential vanilloid 4 (TRPV4) channel is a non-selective cation channel that is mostly permeable to calcium (Ca2+), which participates in intracellular Ca2+ handling in cardiac cells. It is widely expressed through the body and is activated by a large spectrum of physicochemical stimuli, conferring it a role in a variety of sensorial and physiological functions. Within the cardiovascular system, TRPV4 expression is reported in cardiomyocytes, endothelial cells (ECs) and smooth muscle cells (SMCs), where it modulates mitochondrial activity, Ca2+ homeostasis, cardiomyocytes electrical activity and contractility, cardiac embryonic development and fibroblast proliferation, as well as vascular permeability, dilatation and constriction. On the other hand, TRPV4 channels participate in several cardiac pathological processes such as the development of cardiac fibrosis, hypertrophy, ischemia-reperfusion injuries, heart failure, myocardial infarction and arrhythmia. In this manuscript, we provide an overview of TRPV4 channel implications in cardiac physiology and discuss the potential of the TRPV4 channel as a therapeutic target against cardiovascular diseases.
Collapse
Affiliation(s)
- Sébastien Chaigne
- IHU LIRYC Electrophysiology and Heart Modeling Institute, Fondation Bordeaux Université, 33600 Bordeaux, France
- Centre de Recherche Cardio-Thoracique de Bordeaux, INSERM U1045, University of Bordeaux, 33600 Pessac, France
- Electrophysiology and Ablation Unit, Bordeaux University Hospital, 33604 Pessac, France
| | - Solène Barbeau
- Centre de Recherche Cardio-Thoracique de Bordeaux, INSERM U1045, University of Bordeaux, 33600 Pessac, France
| | - Thomas Ducret
- Centre de Recherche Cardio-Thoracique de Bordeaux, INSERM U1045, University of Bordeaux, 33600 Pessac, France
| | - Romain Guinamard
- UR4650, Physiopathologie et Stratégies d'Imagerie du Remodelage Cardiovasculaire, GIP Cyceron, Université de Caen Normandie, 14032 Caen, France
| | - David Benoist
- IHU LIRYC Electrophysiology and Heart Modeling Institute, Fondation Bordeaux Université, 33600 Bordeaux, France
- Centre de Recherche Cardio-Thoracique de Bordeaux, INSERM U1045, University of Bordeaux, 33600 Pessac, France
| |
Collapse
|
22
|
Aitken C, Mehta V, Schwartz MA, Tzima E. Mechanisms of endothelial flow sensing. NATURE CARDIOVASCULAR RESEARCH 2023; 2:517-529. [PMID: 39195881 DOI: 10.1038/s44161-023-00276-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 04/14/2023] [Indexed: 08/29/2024]
Abstract
Fluid shear stress plays a key role in sculpting blood vessels during development, in adult vascular homeostasis and in vascular pathologies. During evolution, endothelial cells evolved several mechanosensors that convert physical forces into biochemical signals, a process termed mechanotransduction. This Review discusses our understanding of endothelial flow sensing and suggests important questions for future investigation.
Collapse
Affiliation(s)
- Claire Aitken
- Wellcome Centre for Human Genetics, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Vedanta Mehta
- Wellcome Centre for Human Genetics, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Martin A Schwartz
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, and Departments of Cell Biology and Biomedical Engineering, Yale University, New Haven, CT, USA.
| | - Ellie Tzima
- Wellcome Centre for Human Genetics, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
| |
Collapse
|
23
|
Hong SG, Ashby JW, Kennelly JP, Wu M, Chattopadhyay E, Foreman R, Tontonoz P, Turowski P, Gallagher-Jones M, Mack JJ. Polarized Mechanosensitive Signaling Domains Protect Arterial Endothelial Cells Against Inflammation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.26.542500. [PMID: 37292837 PMCID: PMC10246006 DOI: 10.1101/2023.05.26.542500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Endothelial cells (ECs) in the descending aorta are exposed to high laminar shear stress, which supports an anti-inflammatory phenotype that protects them from atherosclerosis. High laminar shear stress also supports flow-aligned cell elongation and front-rear polarity, but whether this is required for athero-protective signaling is unclear. Here, we show that Caveolin-1-rich microdomains become polarized at the downstream end of ECs exposed to continuous high laminar flow. These microdomains are characterized by higher membrane rigidity, filamentous actin (F-actin) and lipid accumulation. Transient receptor potential vanilloid-type 4 (Trpv4) ion channels, while ubiquitously expressed, mediate localized Ca 2+ entry at these microdomains where they physically interact with clustered Caveolin-1. The resultant focal bursts in Ca 2+ activate the anti-inflammatory factor endothelial nitric oxide synthase (eNOS) within the confines of these domains. Importantly, we find that signaling at these domains requires both cell body elongation and sustained flow. Finally, Trpv4 signaling at these domains is necessary and sufficient to suppress inflammatory gene expression. Our work reveals a novel polarized mechanosensitive signaling hub that induces an anti-inflammatory response in arterial ECs exposed to high laminar shear stress.
Collapse
|
24
|
Santana Nunez D, Malik AB, Lee Q, Ahn SJ, Coctecon-Murillo A, Lazarko D, Levitan I, Mehta D, Komarova YA. Piezo1 induces endothelial responses to shear stress via soluble adenylyl Cyclase-IP 3R2 circuit. iScience 2023; 26:106661. [PMID: 37168565 PMCID: PMC10164902 DOI: 10.1016/j.isci.2023.106661] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/30/2023] [Accepted: 04/07/2023] [Indexed: 05/13/2023] Open
Abstract
Endothelial cells (ECs) continuously sense and adapt to changes in shear stress generated by blood flow. Here, we show that the activation of the mechanosensitive channel Piezo1 by defined shear forces induces Ca2+ entry into the endoplasmic reticulum (ER) via the ER Ca2+ ATPase pump. This entry is followed by inositol trisphosphate receptor 2 (IP3R2)-elicited ER Ca2+ release into the cytosol. The mechanism of ER Ca2+ release involves the generation of cAMP by soluble adenylyl cyclase (sAC), leading to IP3R2-evoked Ca2+ gating. Depleting sAC or IP3R2 prevents ER Ca2+ release and blocks EC alignment in the direction of flow. Overexpression of constitutively active Akt1 restores the shear-induced alignment of ECs lacking Piezo1 or IP3R2, as well as the flow-induced vasodilation in endothelial restricted Piezo1 knockout mice. These studies describe an unknown Piezo1-cAMP-IP3R2 circuit as an essential mechanism activating Akt signaling and inducing adaptive changes in ECs to laminar flow.
Collapse
Affiliation(s)
- Dianicha Santana Nunez
- Department of Pharmacology and Regenerative Medicine, the Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Asrar B. Malik
- Department of Pharmacology and Regenerative Medicine, the Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Quinn Lee
- Department of Pharmacology and Regenerative Medicine, the Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Sang Joon Ahn
- Department of Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Arnold Coctecon-Murillo
- Department of Pharmacology and Regenerative Medicine, the Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Dana Lazarko
- Department of Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Irena Levitan
- Department of Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Dolly Mehta
- Department of Pharmacology and Regenerative Medicine, the Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Yulia A. Komarova
- Department of Pharmacology and Regenerative Medicine, the Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| |
Collapse
|
25
|
Davis MJ, Earley S, Li YS, Chien S. Vascular mechanotransduction. Physiol Rev 2023; 103:1247-1421. [PMID: 36603156 PMCID: PMC9942936 DOI: 10.1152/physrev.00053.2021] [Citation(s) in RCA: 50] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 01/07/2023] Open
Abstract
This review aims to survey the current state of mechanotransduction in vascular smooth muscle cells (VSMCs) and endothelial cells (ECs), including their sensing of mechanical stimuli and transduction of mechanical signals that result in the acute functional modulation and longer-term transcriptomic and epigenetic regulation of blood vessels. The mechanosensors discussed include ion channels, plasma membrane-associated structures and receptors, and junction proteins. The mechanosignaling pathways presented include the cytoskeleton, integrins, extracellular matrix, and intracellular signaling molecules. These are followed by discussions on mechanical regulation of transcriptome and epigenetics, relevance of mechanotransduction to health and disease, and interactions between VSMCs and ECs. Throughout this review, we offer suggestions for specific topics that require further understanding. In the closing section on conclusions and perspectives, we summarize what is known and point out the need to treat the vasculature as a system, including not only VSMCs and ECs but also the extracellular matrix and other types of cells such as resident macrophages and pericytes, so that we can fully understand the physiology and pathophysiology of the blood vessel as a whole, thus enhancing the comprehension, diagnosis, treatment, and prevention of vascular diseases.
Collapse
Affiliation(s)
- Michael J Davis
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Scott Earley
- Department of Pharmacology, University of Nevada, Reno, Nevada
| | - Yi-Shuan Li
- Department of Bioengineering, University of California, San Diego, California
- Institute of Engineering in Medicine, University of California, San Diego, California
| | - Shu Chien
- Department of Bioengineering, University of California, San Diego, California
- Institute of Engineering in Medicine, University of California, San Diego, California
- Department of Medicine, University of California, San Diego, California
| |
Collapse
|
26
|
Zhu Y, Chu Y, Wang S, Tang J, Li H, Feng L, Yu F, Ma X. Vascular Smooth Muscle TRPV4 (Transient Receptor Potential Vanilloid Family Member 4) Channels Regulate Vasoconstriction and Blood Pressure in Obesity. Hypertension 2023; 80:757-770. [PMID: 36794584 DOI: 10.1161/hypertensionaha.122.20109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
BACKGROUND Vascular endothelium and smooth muscle work together to keep the balance of vasomotor tone and jointly maintain vascular homeostasis. Ca2+-permeable ion channel TRPV4 (transient receptor potential vanilloid family member 4) in endothelial cells regulates endothelium-dependent vasodilation and contraction in various states. However, how vascular smooth muscle cell TRPV4 (TRPV4SMC) contributes to vascular function and blood pressure regulation in physiological and pathologically obese condition has not been fully studied. METHODS We generated smooth muscle TRPV4-deficient mice and developed diet-induced obese mice model and analyzed the role of TRPV4SMC in intracellular Ca2+ ([Ca2+]i) regulation and vasoconstriction. Vasomotor changes of mouse mesenteric artery were measured by wire, and pressure myography. [Ca2+]i were measured by fluo-4 staining. Blood pressure was recorded by telemetric device. RESULTS Vascular TRPV4SMC played different roles in regulating vasomotor tone than endothelial TRPV4 due to their different features of [Ca2+]i regulation. Loss of TRPV4SMC attenuated U46619- and phenylephrine-induced contraction, suggesting its involvement in regulating vascular contractility. Mesenteric arteries from obese mice showed SMC hyperplasia, suggesting an increased level of TRPV4SMC. Loss of TRPV4SMC did not influence the development of obesity but protected mice from obesity-induced vasoconstriction and hypertension. In arteries deficient in SMC TRPV4, SMCs F-actin polymerization and RhoA dephosphorylation were attenuated under contractile stimuli. Moreover, SMC-dependent vasoconstriction was inhibited in human resistance arteries with TRPV4 inhibitor application. CONCLUSIONS Our data identify TRPV4SMC as a regulator of vascular contraction in both physiological states and pathologically obese mice. TRPV4SMC contributes to the ontogeny of vasoconstriction and hypertension induced by TRPV4SMC over-expression in obese mice mesenteric artery.
Collapse
Affiliation(s)
- Yifei Zhu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China (Y.Z., Y.C., S.W., L.F., F.Y., X.M.)
| | - Yuan Chu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China (Y.Z., Y.C., S.W., L.F., F.Y., X.M.)
| | - Sheng Wang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China (Y.Z., Y.C., S.W., L.F., F.Y., X.M.)
| | - Junjian Tang
- Department of Vascular Surgery, Affiliated Hospital of Jiangnan University, Wuxi, China (J.T., H.L.)
| | - Hu Li
- Department of Vascular Surgery, Affiliated Hospital of Jiangnan University, Wuxi, China (J.T., H.L.)
| | - Lei Feng
- Wuxi School of Medicine, Jiangnan University, Wuxi, China (Y.Z., Y.C., S.W., L.F., F.Y., X.M.)
| | - Fan Yu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China (Y.Z., Y.C., S.W., L.F., F.Y., X.M.)
| | - Xin Ma
- Wuxi School of Medicine, Jiangnan University, Wuxi, China (Y.Z., Y.C., S.W., L.F., F.Y., X.M.)
| |
Collapse
|
27
|
Ritzmann D, Jahn M, Heck S, Jung C, Cesetti T, Couturier N, Rudolf R, Reuscher N, Buerger C, Rauh O, Fauth T. The Ca 2+ channel TRPV4 is dispensable for Ca 2+ influx and cell volume regulation during hypotonic stress response in human keratinocyte cell lines. Cell Calcium 2023; 111:102715. [PMID: 36933289 DOI: 10.1016/j.ceca.2023.102715] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/02/2023] [Accepted: 03/09/2023] [Indexed: 03/13/2023]
Abstract
Cell swelling as a result of hypotonic stress is counteracted in mammalian cells by a process called regulatory volume decrease (RVD). We have recently discovered that RVD of human keratinocytes requires the LRRC8 volume-regulated anion channel (VRAC) and that Ca2+ exerts a modulatory function on RVD. However, the ion channel that is responsible for Ca2+ influx remains unknown. We investigated in this study whether the Ca2+-permeable TRPV4 ion channel, which functions as cell volume sensor in many cell types, may be involved in cell volume regulation during hypotonic stress response of human keratinocytes. We interfered with TRPV4 function in two human keratinocyte cell lines (HaCaT and NHEK-E6/E7) by using two TRPV4-specific inhibitors (RN1734 and GSK2193874), and by creating a CRISPR/Cas9-mediated genetic TRPV4-/- knockout in HaCaT cells. We employed electrophysiological patch clamp analysis, fluorescence-based Ca2+ imaging and cell volume measurements to determine the functional importance of TRPV4. We could show that both hypotonic stress and direct activation of TRPV4 by the specific agonist GSK1016790A triggered intracellular Ca2+ response. Strikingly, the Ca2+ increase upon hypotonic stress was neither affected by genetic knockout of TRPV4 in HaCaT cells nor by pharmacological inhibition of TRPV4 in both keratinocyte cell lines. Accordingly, hypotonicity-induced cell swelling, downstream activation of VRAC currents as well as subsequent RVD were unaffected both in TRPV4 inhibitor-treated keratinocytes and in HaCaT-TRPV4-/- cells. In summary, our study shows that keratinocytes do not require TRPV4 for coping with hypotonic stress, which implies the involvement of other, yet unidentified Ca2+ channels.
Collapse
Affiliation(s)
| | - Magdalena Jahn
- BRAIN Biotech AG, Zwingenberg, Germany; Department of Dermatology, Venerology and Allergology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | | | - Cristina Jung
- Membrane Biophysics, Department of Biology, TU Darmstadt, Darmstadt, Germany
| | - Tiziana Cesetti
- Institute of Molecular and Cell Biology, Hochschule Mannheim, Mannheim, Germany; Center for Mass Spectrometry and Optical Spectroscopy, Hochschule Mannheim, Mannheim, Germany
| | - Nathalie Couturier
- Institute of Molecular and Cell Biology, Hochschule Mannheim, Mannheim, Germany; Center for Mass Spectrometry and Optical Spectroscopy, Hochschule Mannheim, Mannheim, Germany
| | - Rüdiger Rudolf
- Institute of Molecular and Cell Biology, Hochschule Mannheim, Mannheim, Germany; Center for Mass Spectrometry and Optical Spectroscopy, Hochschule Mannheim, Mannheim, Germany
| | - Naemi Reuscher
- Department of Dermatology, Venerology and Allergology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Claudia Buerger
- Department of Dermatology, Venerology and Allergology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Oliver Rauh
- Membrane Biophysics, Department of Biology, TU Darmstadt, Darmstadt, Germany
| | | |
Collapse
|
28
|
Effects of shear stress on vascular endothelial functions in atherosclerosis and potential therapeutic approaches. Biomed Pharmacother 2023; 158:114198. [PMID: 36916427 DOI: 10.1016/j.biopha.2022.114198] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/09/2022] [Accepted: 12/29/2022] [Indexed: 01/07/2023] Open
Abstract
Different blood flow patterns in the arteries can alter the adaptive phenotype of vascular endothelial cells (ECs), thereby affecting the functions of ECs and are directly associated with the occurrence of lesions in the early stages of atherosclerosis (AS). Atherosclerotic plaques are commonly found at curved or bifurcated arteries, where the blood flow pattern is dominated by oscillating shear stress (OSS). OSS can induce ECs to transform into pro-inflammatory phenotypes, increase cellular inflammation, oxidative stress response, mitochondrial dysfunction, metabolic abnormalities and endothelial permeability, thereby promoting the progression of AS. On the other hand, the straight artery has a stable laminar shear stress (LSS), which promotes the transformation of ECs into an anti-inflammatory phenotype, improves endothelial cell function, thereby inhibits atherosclerotic progression. ECs have the ability to actively sense, integrate, and convert mechanical stimuli by shear stress into biochemical signals that further induces intracellular changes (such as the opening and closing of ion channels, activation and transcription of signaling pathways). Here we not only outline the relationship between functions of vascular ECs and different forms of fluid shear stress in AS, but also aim to provide new solutions for potential atherosclerotic therapies targeting intracellular mechanical transductions.
Collapse
|
29
|
Physiological levels of fluid shear stress modulate vascular function through TRPV4 sparklets. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1268-1277. [PMID: 36082933 DOI: 10.3724/abbs.2022118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Endothelial calcium (Ca 2+) signaling plays a major role in regulating vasodilation in response to fluid shear stress (FSS) generated by blood flow. Local Ca 2+ influx through single transient receptor potential channel subfamily V member 4 (TRPV4) (termed "sparklets") activated by low concentrations of chemical and biological stimuli has been revealed to modulate vascular function. However, the range in which FSS can initiate TRPV4 sparklets to induce vasodilation is unknown. Here, we assess the activity of TPRV4 sparklets induced by various physiological levels of FSS and investigate the mechanisms involving these Ca 2+ signals in FSS-induced vasodilation. Intact small mesenteric arteries are used for Ca 2+ imaging with a GCaMP2(TRPV4-KO) mouse model and high-speed confocal systems. Markedly increased local Ca 2+ signals are observed in the endothelium under 4-8 dyne/cm 2 FSS, whereas FSS >8 dyne/cm 2 causes global Ca 2+ influx. Further analysis shows that TRPV4 channels form a four-channel group to mediate Ca 2+ sparklets under certain levels of FSS. The large Ca 2+ influx hyperpolarizes endothelial cells by stimulating intermediate (IK)- and small (SK)-conductance Ca 2+-sensitive potassium channels, leading to hyperpolarization of the surrounding smooth muscle cells and ultimately causing endothelium-dependent vasodilation. In conclusion, Ca 2+ influx transits through a small number of endothelial TRPV4 channels opened by certain levels of FSS, which activates the Ca 2+-sensitive IK and SK channels to cause vasodilation.
Collapse
|
30
|
Yang W, Wang H, Guo Q, Xu X, Guo T, Sun L. Roles of TRPV4 in Regulating Circulating Angiogenic Cells to Promote Coronary Microvascular Regeneration. J Cardiovasc Transl Res 2022; 16:414-426. [PMID: 36103035 DOI: 10.1007/s12265-022-10305-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/17/2022] [Indexed: 11/24/2022]
Abstract
To clarify the mechanisms underlying TRPV4 regulating angiogenesis by enhancing the activity of CACs, we detected the angiogenesis ability of HUVEC co-cultured with CACs, the effects of ILK on TRPV4 expression and CACs activity, and the impacts of TRPV4 agonist or inhibitor on cardio-protection of AMI rats with or without CAC transplantation. ILK overexpression or TRPV4 agonist promoted the angiogenesis in HUVEC co-cultured with CACs. ILK overexpression or activation upregulated TRPV4 expression in CACs, while TRPV4 agonist stimulation also regulated ILK expression. TRPV4 agonist effectively improved the myocardial function of AMI rats. Moreover, this effect could be strengthened when combined with CAC transplantation, as CAC transplantation dramatically upregulated the expression of ILK and TRPV4 in heart tissues of AMI rats. Thus, the application of TRPV4 agonist may maintain the activity of CACs to promote angiogenesis and microcirculation reconstruction in the area of myocardial infarction and substantially improve the therapeutic effect.
Collapse
Affiliation(s)
- Wenhui Yang
- Department of Cardiology, Fuwai Yunnan Cardiovascular Hospital, Kunming, China
| | - Haizhen Wang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, China
| | - Qiuzhe Guo
- Department of Cardiology, Fuwai Yunnan Cardiovascular Hospital, Kunming, China
| | - Xiaocui Xu
- Kunming Medical University, Kunming, China
| | - Tao Guo
- Department of Cardiology, Fuwai Yunnan Cardiovascular Hospital, Kunming, China.
| | - Lin Sun
- Department of Cardiology, Fuwai Yunnan Cardiovascular Hospital, Kunming, China.
| |
Collapse
|
31
|
Bera K, Kiepas A, Zhang Y, Sun SX, Konstantopoulos K. The interplay between physical cues and mechanosensitive ion channels in cancer metastasis. Front Cell Dev Biol 2022; 10:954099. [PMID: 36158191 PMCID: PMC9490090 DOI: 10.3389/fcell.2022.954099] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Physical cues have emerged as critical influencers of cell function during physiological processes, like development and organogenesis, and throughout pathological abnormalities, including cancer progression and fibrosis. While ion channels have been implicated in maintaining cellular homeostasis, their cell surface localization often places them among the first few molecules to sense external cues. Mechanosensitive ion channels (MICs) are especially important transducers of physical stimuli into biochemical signals. In this review, we describe how physical cues in the tumor microenvironment are sensed by MICs and contribute to cancer metastasis. First, we highlight mechanical perturbations, by both solid and fluid surroundings typically found in the tumor microenvironment and during critical stages of cancer cell dissemination from the primary tumor. Next, we describe how Piezo1/2 and transient receptor potential (TRP) channels respond to these physical cues to regulate cancer cell behavior during different stages of metastasis. We conclude by proposing alternative mechanisms of MIC activation that work in tandem with cytoskeletal components and other ion channels to bestow cells with the capacity to sense, respond and navigate through the surrounding microenvironment. Collectively, this review provides a perspective for devising treatment strategies against cancer by targeting MICs that sense aberrant physical characteristics during metastasis, the most lethal aspect of cancer.
Collapse
Affiliation(s)
- Kaustav Bera
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
| | - Alexander Kiepas
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
- *Correspondence: Alexander Kiepas, ; Konstantinos Konstantopoulos,
| | - Yuqi Zhang
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
| | - Sean X. Sun
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
- Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD, United States
| | - Konstantinos Konstantopoulos
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
- Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Department of Oncology, The Johns Hopkins University, Baltimore, MD, United States
- *Correspondence: Alexander Kiepas, ; Konstantinos Konstantopoulos,
| |
Collapse
|
32
|
Flournoy J, Ashkanani S, Chen Y. Mechanical regulation of signal transduction in angiogenesis. Front Cell Dev Biol 2022; 10:933474. [PMID: 36081909 PMCID: PMC9447863 DOI: 10.3389/fcell.2022.933474] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/28/2022] [Indexed: 11/21/2022] Open
Abstract
Biophysical and biochemical cues work in concert to regulate angiogenesis. These cues guide angiogenesis during development and wound healing. Abnormal cues contribute to pathological angiogenesis during tumor progression. In this review, we summarize the known signaling pathways involved in mechanotransduction important to angiogenesis. We discuss how variation in the mechanical microenvironment, in terms of stiffness, ligand availability, and topography, can modulate the angiogenesis process. We also present an integrated view on how mechanical perturbations, such as stretching and fluid shearing, alter angiogenesis-related signal transduction acutely, leading to downstream gene expression. Tissue engineering-based approaches to study angiogenesis are reviewed too. Future directions to aid the efforts in unveiling the comprehensive picture of angiogenesis are proposed.
Collapse
Affiliation(s)
- Jennifer Flournoy
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, United States
- Center for Cell Dynamics, Johns Hopkins University, Baltimore, MD, United States
- Institute for NanoBio Technology, Johns Hopkins University, Baltimore, MD, United States
| | - Shahad Ashkanani
- Center for Cell Dynamics, Johns Hopkins University, Baltimore, MD, United States
- Institute for NanoBio Technology, Johns Hopkins University, Baltimore, MD, United States
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, United States
| | - Yun Chen
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, United States
- Center for Cell Dynamics, Johns Hopkins University, Baltimore, MD, United States
- Institute for NanoBio Technology, Johns Hopkins University, Baltimore, MD, United States
| |
Collapse
|
33
|
The Effects of Acidosis on eNOS in the Systemic Vasculature: A Focus on Early Postnatal Ontogenesis. Int J Mol Sci 2022; 23:ijms23115987. [PMID: 35682667 PMCID: PMC9180972 DOI: 10.3390/ijms23115987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 01/27/2023] Open
Abstract
The activity of many vasomotor signaling pathways strongly depends on extracellular/intracellular pH. Nitric oxide (NO) is one of the most important vasodilators produced by the endothelium. In this review, we present evidence that in most vascular beds of mature mammalian organisms metabolic or respiratory acidosis increases functional endothelial NO-synthase (eNOS) activity, despite the observation that direct effects of low pH on eNOS enzymatic activity are inhibitory. This can be explained by the fact that acidosis increases the activity of signaling pathways that positively regulate eNOS activity. The role of NO in the regulation of vascular tone is greater in early postnatal ontogenesis compared to adulthood. Importantly, in early postnatal ontogenesis acidosis also augments functional eNOS activity and its contribution to the regulation of arterial contractility. Therefore, the effect of acidosis on total peripheral resistance in neonates may be stronger than in adults and can be one of the reasons for an undesirable decrease in blood pressure during neonatal asphyxia. The latter, however, should be proven in future studies.
Collapse
|
34
|
Harraz OF, Klug NR, Senatore AJ, Hill-Eubanks DC, Nelson MT. Piezo1 Is a Mechanosensor Channel in Central Nervous System Capillaries. Circ Res 2022; 130:1531-1546. [PMID: 35382561 PMCID: PMC9106929 DOI: 10.1161/circresaha.122.320827] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Capillaries are equipped to sense neurovascular coupling agents released onto the outer wall of a capillary, translating these external signals into electrical/Ca2+ changes that play a crucial role in blood flow regulation and ensuring that neuronal demands are met. However, control mechanisms attributable to forces imposed onto the lumen are less clear. Here, we show that Piezo1 channels act as mechanosensors in central nervous system capillaries. Electrophysiological analyses confirmed expression and function of Piezo1 channels in brain cortical and retinal capillaries. Activation of Piezo1 channels evoked currents that were sensitive to endothelial cell-specific Piezo1 deletion. Using genetically encoded Ca2+ indicator mice and an ex vivo pressurized retina preparation, we found that activation of Piezo1 channels by mechanical forces triggered Ca2+ signals in capillary endothelial cells. Collectively, these findings indicate that Piezo1 channels are capillary mechanosensors that initiate crucial Ca2+ signals and could, therefore, have a profound impact on central nervous system blood flow control.
Collapse
Affiliation(s)
- Osama F. Harraz
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, VT, USA
- Vermont Center for Cardiovascular and Brain Health, University of Vermont, Burlington, VT, USA
| | - Nicholas R. Klug
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Amanda J. Senatore
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - David C. Hill-Eubanks
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Mark T. Nelson
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, VT, USA
- Vermont Center for Cardiovascular and Brain Health, University of Vermont, Burlington, VT, USA
- Division of Cardiovascular Sciences, School of Medical Sciences, University of Manchester, UK
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic Health Science Centre, Northern Care Alliance NHS Group, University of Manchester, UK
| |
Collapse
|
35
|
Xie Y, Nishijima Y, Zinkevich NS, Korishettar A, Fang J, Mathison AJ, Zimmermann MT, Wilcox DA, Gutterman DD, Shen Y, Zhang DX. NADPH oxidase 4 contributes to TRPV4-mediated endothelium-dependent vasodilation in human arterioles by regulating protein phosphorylation of TRPV4 channels. Basic Res Cardiol 2022; 117:24. [PMID: 35469044 PMCID: PMC9119129 DOI: 10.1007/s00395-022-00932-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 02/07/2023]
Abstract
Impaired endothelium-dependent vasodilation has been suggested to be a key component of coronary microvascular dysfunction (CMD). A better understanding of endothelial pathways involved in vasodilation in human arterioles may provide new insight into the mechanisms of CMD. The goal of this study is to investigate the role of TRPV4, NOX4, and their interaction in human arterioles and examine the underlying mechanisms. Arterioles were freshly isolated from adipose and heart tissues obtained from 71 patients without coronary artery disease, and vascular reactivity was studied by videomicroscopy. In human adipose arterioles (HAA), ACh-induced dilation was significantly reduced by TRPV4 inhibitor HC067047 and by NOX 1/4 inhibitor GKT137831, but GKT137831 did not further affect the dilation in the presence of TRPV4 inhibitors. GKT137831 also inhibited TRPV4 agonist GSK1016790A-induced dilation in HAA and human coronary arterioles (HCA). NOX4 transcripts and proteins were detected in endothelial cells of HAA and HCA. Using fura-2 imaging, GKT137831 significantly reduced GSK1016790A-induced Ca2+ influx in the primary culture of endothelial cells and TRPV4-WT-overexpressing human coronary artery endothelial cells (HCAEC). However, GKT137831 did not affect TRPV4-mediated Ca2+ influx in non-phosphorylatable TRPV4-S823A/S824A-overexpressing HCAEC. In addition, treatment of HCAEC with GKT137831 decreased the phosphorylation level of Ser824 in TRPV4. Finally, proximity ligation assay (PLA) revealed co-localization of NOX4 and TRPV4 proteins. In conclusion, both TRPV4 and NOX4 contribute to ACh-induced dilation in human arterioles from patients without coronary artery disease. NOX4 increases TRPV4 phosphorylation in endothelial cells, which in turn enhances TRPV4-mediated Ca2+ entry and subsequent endothelium-dependent dilation in human arterioles.
Collapse
Affiliation(s)
- Yangjing Xie
- School of Basic Medical Sciences, Anhui Medical University, 81 Meishan Road, Hefei 230032, China.,Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Yoshinori Nishijima
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Natalya S. Zinkevich
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Biology, College of Liberal Arts and Sciences, University of Illinois at Springfield, Springfield, IL, USA
| | - Ankush Korishettar
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Juan Fang
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA.,Children’s Research Institute, Children’s Wisconsin, Milwaukee, WI, USA
| | - Angela J. Mathison
- Bioinformatics Research and Development Laboratory, Genomic Sciences and Precision Medicine Center (GSPMC), Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Michael T. Zimmermann
- Bioinformatics Research and Development Laboratory, Genomic Sciences and Precision Medicine Center (GSPMC), Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - David A. Wilcox
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA.,Children’s Research Institute, Children’s Wisconsin, Milwaukee, WI, USA
| | - David D. Gutterman
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Yuxian Shen
- School of Basic Medical Sciences, Anhui Medical University, 81 Meishan Road, Hefei 230032, China.,Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China.,Article correspondence to: David X. Zhang, Ph.D., Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI, 53226, USA, Tel: (414) 955-5633, Fax: (414) 955-6572, And Yuxian Shen, Ph.D., School of Basic Medical Sciences and Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China, Tel: +86-551-6511-3776,
| | - David X. Zhang
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA.,Article correspondence to: David X. Zhang, Ph.D., Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI, 53226, USA, Tel: (414) 955-5633, Fax: (414) 955-6572, And Yuxian Shen, Ph.D., School of Basic Medical Sciences and Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China, Tel: +86-551-6511-3776,
| |
Collapse
|
36
|
Piezo1 activation using Yoda1 inhibits macropinocytosis in A431 human epidermoid carcinoma cells. Sci Rep 2022; 12:6322. [PMID: 35428847 PMCID: PMC9012786 DOI: 10.1038/s41598-022-10153-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/09/2022] [Indexed: 11/08/2022] Open
Abstract
Macropinocytosis is a type of endocytosis accompanied by actin rearrangement-driven membrane deformation, such as lamellipodia formation and membrane ruffling, followed by the formation of large vesicles, macropinosomes. Ras-transformed cancer cells efficiently acquire exogenous amino acids for their survival through macropinocytosis. Thus, inhibition of macropinocytosis is a promising strategy for cancer therapy. To date, few specific agents that inhibit macropinocytosis have been developed. Here, focusing on the mechanosensitive ion channel Piezo1, we found that Yoda1, a Piezo1 agonist, potently inhibits macropinocytosis induced by epidermal growth factor (EGF). The inhibition of ruffle formation by Yoda1 was dependent on the extracellular Ca2+ influx through Piezo1 and on the activation of the calcium-activated potassium channel KCa3.1. This suggests that Ca2+ ions can regulate EGF-stimulated macropinocytosis. We propose the potential for macropinocytosis inhibition through the regulation of a mechanosensitive channel activity using chemical tools.
Collapse
|
37
|
Taylor MS, Lowery J, Choi CS, Francis M. Restricted Intimal Ca 2+ Signaling Associated With Cardiovascular Disease. Front Physiol 2022; 13:848681. [PMID: 35492608 PMCID: PMC9040708 DOI: 10.3389/fphys.2022.848681] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/03/2022] [Indexed: 11/13/2022] Open
Abstract
Endothelial dysfunction is a key feature of cardiovascular disease (CVD) including atherosclerosis. Impaired endothelial signaling leads to plaque formation, vascular wall remodeling and widespread cardiovascular dysregulation. The specific changes along the vascular intima associated with atherosclerosis, including the vulnerable circulation downstream of the flow obstruction, remain poorly understood. Previous findings from animal models suggest that preservation of a distinct Ca2+ signaling profile along the arterial endothelial network is crucial for maintaining vasculature homeostasis and preventing arterial disease. Ca2+ signaling in the intact human artery intima has not been well characterized. Here, we employed confocal imaging and a custom analysis algorithm to assess the spatially and temporally dynamic Ca2+ signaling profiles of human peripheral arteries isolated from the amputated legs of patients with advanced CVD (peripheral artery disease and/or diabetes) or patients who had lost limbs due to non-cardiovascular trauma. In all tibial artery branches (0.5-5 mm diameter) assessed, the intima consistently elicited a broad range of basal Ca2+ signals ranging from isolated focal transients to broad waves. Arteries from patients with existing CVD displayed a restricted intimal Ca2+ signaling pattern characterized by diminished event amplitude and area. Stimulation of type-4 vanilloid transient receptor potential channels (TRPV4) amplified endothelial Ca2+ signals; however, these signals remained smaller and spatially confined in arteries from patients with CVD verses those without CVD. Our findings reveal a characteristic underlying basal Ca2+ signaling pattern within the intima of human peripheral arteries and suggest a distinct truncation of the inherent Ca2+ profile with CVD.
Collapse
Affiliation(s)
- Mark S. Taylor
- Department of Physiology and Cell Biology, University of South Alabama College of Medicine, Mobile, AL, United States
| | - Jordan Lowery
- Department of Pathology, University of South Alabama College of Medicine, Mobile, AL, United States
| | - Chung-Sik Choi
- Department of Physiology and Cell Biology, University of South Alabama College of Medicine, Mobile, AL, United States
| | - Michael Francis
- Department of Physiology and Cell Biology, University of South Alabama College of Medicine, Mobile, AL, United States
| |
Collapse
|
38
|
Shimizu T, Terawaki K, Sekiguchi K, Sanechika S, Ohbuchi K, Matsumoto C, Ikeda Y. Tokishakuyakusan ameliorates lowered body temperature after immersion in cold water through the early recovery of blood flow in rats. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114896. [PMID: 34896207 DOI: 10.1016/j.jep.2021.114896] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/03/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE 'Cold feeling' is a subjective feeling of unusual coldness that aggravates fatigue, stiffness, and other symptoms, thereby reducing quality of life. Tokishakuyakusan (TSS) is a Kampo medicine reported to improve cold feeling and is used to treat symptoms aggravated by cold feeling. However, the mechanism of action of TSS is unclear. Cold feeling may involve reduced blood flow and subsequent inhibition of heat transport. Therefore, elucidating the effects of TSS on blood flow is one of the most important research topics for clarifying the mechanism of action of TSS. AIM OF THE STUDY We aimed to evaluate the effect of TSS on recovery from lowered body temperature by the immersion of rats in cold water and to clarify the involvement of blood flow in the action of TSS. MATERIALS AND METHODS After female Wistar rats underwent 9 days of low room temperature stress loading (i.e. room temperature of 18 °C), they were subjected to immersion in cold water (15 °C) for 15 min. Body surface temperature, rectal temperature, and plantar temperature were measured before and after immersion in cold water. Blood flow was measured before and after immersion in cold water without low room temperature stress loading. TSS (0.5 g/kg or 1 g/kg) or the vehicle (i.e. distilled water) was orally administered once daily for 10 days for the measurement of body temperature or once 30 min before immersion in cold water for the measurement of blood flow. In addition, we examined the effect of TSS on calcitonin gene-related peptide (CGRP) release from dorsal root ganglion (DRG) cells, the effect of TSS ingredients on transient receptor potential (TRP) channels, and the effect of TSS ingredients on the membrane potential of vascular smooth muscle cells and evaluated the mechanism of the effects of TSS on blood flow. RESULTS Body temperature and blood flow decreased after immersion in cold water and then recovered over time. A comparison of body temperature at each timepoint or area under the curve showed that TSS (1 g/kg) accelerated the recovery of body surface temperature, rectal temperature, and blood flow. TSS significantly increased CGRP release from DRG cells, which disappeared after pretreatment with HC-030031 (a transient receptor potential ankyrin 1 [TRPA1] antagonist). The effects of seven TSS ingredients on TRP channels were examined. The agonistic effect on TRPA1 was observed for atractylodin, atractylodin carboxylic acid and levistolide A. Among the TSS ingredients, atractylodin carboxylic acid had significant hyperpolarising effects. CONCLUSIONS The mechanism by which TSS accelerates the recovery of lowered body temperature in rats after immersion in cold water may involve the acceleration of the recovery of lowered blood flow. Increased CGRP release from DRG cells by TSS, TRPA1 activation by TSS ingredients, and membrane potential changes in vascular smooth muscle cells caused by TSS ingredients are part of the mechanism of action of TSS. These findings may partly contribute to the interpretation of the beneficial effects of TSS on cold feeling.
Collapse
Affiliation(s)
- Tomofumi Shimizu
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki, 300-1192, Japan.
| | - Kiyoshi Terawaki
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki, 300-1192, Japan.
| | - Kyoji Sekiguchi
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki, 300-1192, Japan.
| | - Sho Sanechika
- Tsumura Advanced Technology Research Laboratories, Kampo Research & Development Division, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki, 300-1192, Japan.
| | - Katsuya Ohbuchi
- Tsumura Advanced Technology Research Laboratories, Kampo Research & Development Division, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki, 300-1192, Japan.
| | - Chinami Matsumoto
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki, 300-1192, Japan.
| | - Yoshiki Ikeda
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki, 300-1192, Japan.
| |
Collapse
|
39
|
Ando J, Yamamoto K. Hemodynamic Forces, Endothelial Mechanotransduction, and Vascular Diseases. Magn Reson Med Sci 2022; 21:258-266. [PMID: 34024868 PMCID: PMC9680547 DOI: 10.2463/mrms.rev.2021-0018] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/23/2021] [Indexed: 11/09/2022] Open
Abstract
Cells in the tissues and organs of a living body are subjected to mechanical forces, such as pressure, friction, and tension from their surrounding environment. Cells are equipped with a mechanotransduction mechanism by which they perceive mechanical forces and transmit information into the cell interior, thereby causing physiological or pathogenetic mechano-responses. Endothelial cells (ECs) lining the inner surface of blood vessels are constantly exposed to shear stress caused by blood flow and a cyclic strain caused by intravascular pressure. A number of studies have shown that ECs are sensitive to changes in these hemodynamic forces and alter their morphology and function, sometimes by modifying gene expression. The mechanism of endothelial mechanotransduction has been elucidated, and the plasma membrane has recently been shown to act as a mechanosensor. The lipid order and cholesterol content of plasma membranes change immediately upon the exposure of ECs to hemodynamic forces, resulting in a change in membrane fluidity. These changes in a plasma membrane's physical properties affect the conformation and function of various ion channels, receptors, and microdomains (such as caveolae and primary cilia), thereby activating a wide variety of downstream signaling pathways. Such endothelial mechanotransduction works to maintain circulatory homeostasis; however, errors in endothelial mechanotransduction can cause abnormalities in vascular physiological function, leading to the initiation and progression of various vascular diseases, such as hypertension, thrombosis, aneurysms, and atherosclerosis. Recent advances in detailed imaging technology and computational fluid dynamics analysis have enabled us to evaluate the hemodynamic forces acting on vascular tissue accurately, contributing greatly to our understanding of vascular mechanotransduction and the pathogenesis of vascular diseases, as well as the development of new therapies for vascular diseases.
Collapse
Affiliation(s)
- Joji Ando
- Laboratory of Biomedical Engineering, School of Medicine, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Kimiko Yamamoto
- Laboratory of System Physiology, Department of Biomedical Engineering, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
40
|
Jackson WF. Endothelial Ion Channels and Cell-Cell Communication in the Microcirculation. Front Physiol 2022; 13:805149. [PMID: 35211031 PMCID: PMC8861442 DOI: 10.3389/fphys.2022.805149] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/05/2022] [Indexed: 12/13/2022] Open
Abstract
Endothelial cells in resistance arteries, arterioles, and capillaries express a diverse array of ion channels that contribute to Cell-Cell communication in the microcirculation. Endothelial cells are tightly electrically coupled to their neighboring endothelial cells by gap junctions allowing ion channel-induced changes in membrane potential to be conducted for considerable distances along the endothelial cell tube that lines arterioles and forms capillaries. In addition, endothelial cells may be electrically coupled to overlying smooth muscle cells in arterioles and to pericytes in capillaries via heterocellular gap junctions allowing electrical signals generated by endothelial cell ion channels to be transmitted to overlying mural cells to affect smooth muscle or pericyte contractile activity. Arteriolar endothelial cells express inositol 1,4,5 trisphosphate receptors (IP3Rs) and transient receptor vanilloid family member 4 (TRPV4) channels that contribute to agonist-induced endothelial Ca2+ signals. These Ca2+ signals then activate intermediate and small conductance Ca2+-activated K+ (IKCa and SKCa) channels causing vasodilator-induced endothelial hyperpolarization. This hyperpolarization can be conducted along the endothelium via homocellular gap junctions and transmitted to overlying smooth muscle cells through heterocellular gap junctions to control the activity of voltage-gated Ca2+ channels and smooth muscle or pericyte contraction. The IKCa- and SKCa-induced hyperpolarization may be amplified by activation of inward rectifier K+ (KIR) channels. Endothelial cell IP3R- and TRPV4-mediated Ca2+ signals also control the production of endothelial cell vasodilator autacoids, such as NO, PGI2, and epoxides of arachidonic acid contributing to control of overlying vascular smooth muscle contractile activity. Cerebral capillary endothelial cells lack IKCa and SKCa but express KIR channels, IP3R, TRPV4, and other Ca2+ permeable channels allowing capillary-to-arteriole signaling via hyperpolarization and Ca2+. This allows parenchymal cell signals to be detected in capillaries and signaled to upstream arterioles to control blood flow to capillaries by active parenchymal cells. Thus, endothelial cell ion channels importantly participate in several forms of Cell-Cell communication in the microcirculation that contribute to microcirculatory function and homeostasis.
Collapse
Affiliation(s)
- William F Jackson
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, United States
| |
Collapse
|
41
|
Li Z, Cipolla MJ. Mechanisms of Flow-Mediated Dilation of Pial Collaterals and the Effect of Hypertension. Hypertension 2022; 79:457-467. [PMID: 34856815 PMCID: PMC8755599 DOI: 10.1161/hypertensionaha.121.18602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/21/2021] [Indexed: 02/03/2023]
Abstract
Leptomeningeal anastomoses are small distal anastomotic vessels also known as pial collaterals in the brain. These vessels redirect blood flow during an occlusion and are important for stroke treatment and outcome. Pial collaterals have unique hemodynamic forces and experience significantly increased luminal flow and shear stress after the onset of ischemic stroke. However, there is limited knowledge of how pial collaterals respond to flow and shear stress, and whether this response is altered in chronic hypertension. Using an in vitro system, pial collaterals from normotensive and hypertensive rats (n=6-8/group) were isolated and luminal flow was induced with intravascular pressure maintained at 40 mm Hg. Collateral lumen diameter was measured following each flow rate in the absence or presence of pharmacological inhibitors and activators. Collaterals from male and female Wistar rats dilated similarly to increased flow (2 µL/minute: 58.4±18.7% versus 67.9±7.4%; P=0.275), and this response was prevented by inhibition of the transient receptor potential vanilloid type 4 channel, as well as inhibitors of nitric oxide and intermediate-conductance calcium-activated potassium channels, suggesting shear stress-induced activation of this pathway was involved. However, the vasodilation was significantly impaired in hypertensive rats (2 µL/minute: 17.7±7.7%), which was restored by inhibitors of reactive oxygen species and mimicked by angiotensin II. Thus, flow- and shear stress-induced vasodilation of pial collaterals appears to be an important stimulus for increasing collateral flow during large vessel occlusion. Impairment of this response during chronic hypertension may be related to poorly engaged pial collaterals during ischemic stroke in hypertensive subjects.
Collapse
Affiliation(s)
- Zhaojin Li
- Department of Neurological Sciences, University of Vermont Robert Larner College of Medicine, Burlington, VT
| | - Marilyn J. Cipolla
- Department of Neurological Sciences, University of Vermont Robert Larner College of Medicine, Burlington, VT
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Vermont Robert Larner College of Medicine, Burlington, VT
- Department of Pharmacology, University of Vermont Robert Larner College of Medicine, Burlington, VT
| |
Collapse
|
42
|
TRPV4-dependent signaling mechanisms in systemic and pulmonary vasculature. CURRENT TOPICS IN MEMBRANES 2022; 89:1-41. [DOI: 10.1016/bs.ctm.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
43
|
Mao A, Zhang P, Zhang K, Kan H, He D, Han X, Wang Z, Tang C, Ma X. Endothelial TRPV4-eNOS coupling as a vital therapy target for treatment of hypertension. Br J Pharmacol 2021; 179:2297-2312. [PMID: 34822720 DOI: 10.1111/bph.15755] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/25/2021] [Accepted: 11/10/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Reduced nitric oxide (NO) level and activity are signs of endothelial dysfunction, which is important in mediating blood pressure up-regulation. Previously, we demonstrated that transient receptor potential channel V4 (TRPV4) could form functional complex with other proteins to mediate vasodilation in the Endothelial cells (ECs). But how TRPV4 interacts with the NO pathway in larger arteries requires further exploration. EXPERIMENTAL APPROACH We used single-cell RNA-sequencing to find the CD106+ TRPV4high NOS3high ECs. The TRPV4-eNOS interaction was verified by co-immunoprecipitation and Immunofluorescence resonance energy transfer (FRET), and their binding site was found by site-directed mutagenesis. Endothelium-specific TRPV4 knockout (TRPV4EC -/- ) mice were used to study the effect of the TRPV4-eNOS interaction on blood pressure. A small molecule, JNc-463 was designed through molecular docking technology. KEY RESULTS We uncovered CD106+ TRPV4high NOS3high ECs in the mouse aorta, which they could regulate vasodilation via a TRPV4-eNOS interaction, and they were essential to regulate blood pressure. The TRPV4-eNOS interaction markedly decreased during the process of hypertension. We further attempted to identify the molecules re-join the TRPV4-eNOS interaction and develop a small-molecule drug, JNc-463, which could increase the TRPV4-eNOS interaction to enhance vasodilation, and exert antihypertensive effects in mice. CONCLUSION AND IMPLICATIONS This is the first study integrating single-cell RNA-Seq, single-cell functional study and drug screening in aorta. We identified a subpopulation of CD106+ TRPV4high NOS3high ECs, in which an impaired TRPV4-eNOS interaction was important in the progress of hypertension and we designed a small molecule, JNc-463 to improve the impaired TRPV4-eNOS interaction in hypertension.
Collapse
Affiliation(s)
- Aiqin Mao
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Peng Zhang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Ka Zhang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Hao Kan
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Dongxu He
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xiping Han
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Zhiwei Wang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Chunlei Tang
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi, China
| | - Xin Ma
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| |
Collapse
|
44
|
Uray IP, Uray K. Mechanotransduction at the Plasma Membrane-Cytoskeleton Interface. Int J Mol Sci 2021; 22:11566. [PMID: 34768998 PMCID: PMC8584042 DOI: 10.3390/ijms222111566] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 02/08/2023] Open
Abstract
Mechanical cues are crucial for survival, adaptation, and normal homeostasis in virtually every cell type. The transduction of mechanical messages into intracellular biochemical messages is termed mechanotransduction. While significant advances in biochemical signaling have been made in the last few decades, the role of mechanotransduction in physiological and pathological processes has been largely overlooked until recently. In this review, the role of interactions between the cytoskeleton and cell-cell/cell-matrix adhesions in transducing mechanical signals is discussed. In addition, mechanosensors that reside in the cell membrane and the transduction of mechanical signals to the nucleus are discussed. Finally, we describe two examples in which mechanotransduction plays a significant role in normal physiology and disease development. The first example is the role of mechanotransduction in the proliferation and metastasis of cancerous cells. In this system, the role of mechanotransduction in cellular processes, including proliferation, differentiation, and motility, is described. In the second example, the role of mechanotransduction in a mechanically active organ, the gastrointestinal tract, is described. In the gut, mechanotransduction contributes to normal physiology and the development of motility disorders.
Collapse
Affiliation(s)
- Iván P. Uray
- Department of Clinical Oncology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Karen Uray
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| |
Collapse
|
45
|
Fancher IS. Cardiovascular mechanosensitive ion channels-Translating physical forces into physiological responses. CURRENT TOPICS IN MEMBRANES 2021; 87:47-95. [PMID: 34696889 DOI: 10.1016/bs.ctm.2021.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cells and tissues are constantly exposed to mechanical stress. In order to respond to alterations in mechanical stimuli, specific cellular machinery must be in place to rapidly convert physical force into chemical signaling to achieve the desired physiological responses. Mechanosensitive ion channels respond to such physical stimuli in the order of microseconds and are therefore essential components to mechanotransduction. Our understanding of how these ion channels contribute to cellular and physiological responses to mechanical force has vastly expanded in the last few decades due to engineering ingenuities accompanying patch clamp electrophysiology, as well as sophisticated molecular and genetic approaches. Such investigations have unveiled major implications for mechanosensitive ion channels in cardiovascular health and disease. Therefore, in this chapter I focus on our present understanding of how biophysical activation of various mechanosensitive ion channels promotes distinct cell signaling events with tissue-specific physiological responses in the cardiovascular system. Specifically, I discuss the roles of mechanosensitive ion channels in mediating (i) endothelial and smooth muscle cell control of vascular tone, (ii) mechano-electric feedback and cell signaling pathways in cardiomyocytes and cardiac fibroblasts, and (iii) the baroreflex.
Collapse
Affiliation(s)
- Ibra S Fancher
- Department of Kinesiology and Applied Physiology, College of Health Sciences, University of Delaware, Newark, DE, United States.
| |
Collapse
|
46
|
Ishii T, Warabi E, Mann GE. Mechanisms underlying unidirectional laminar shear stress-mediated Nrf2 activation in endothelial cells: Amplification of low shear stress signaling by primary cilia. Redox Biol 2021; 46:102103. [PMID: 34425388 PMCID: PMC8379703 DOI: 10.1016/j.redox.2021.102103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/07/2021] [Accepted: 08/12/2021] [Indexed: 12/14/2022] Open
Abstract
Endothelial cells are sensitive to mechanical stress and respond differently to oscillatory flow versus unidirectional flow. This review highlights the mechanisms by which a wide range of unidirectional laminar shear stress induces activation of the redox sensitive antioxidant transcription factor nuclear factor-E2-related factor 2 (Nrf2) in cultured endothelial cells. We propose that fibroblast growth factor-2 (FGF-2), brain-derived neurotrophic factor (BDNF) and 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) are potential Nrf2 activators induced by laminar shear stress. Shear stress-dependent secretion of FGF-2 and its receptor-mediated signaling is tightly controlled, requiring neutrophil elastase released by shear stress, αvβ3 integrin and the cell surface glycocalyx. We speculate that primary cilia respond to low laminar shear stress (<10 dyn/cm2), resulting in secretion of insulin-like growth factor 1 (IGF-1), which facilitates αvβ3 integrin-dependent FGF-2 secretion. Shear stress induces generation of heparan-binding epidermal growth factor-like growth factor (HB-EGF), which contributes to FGF-2 secretion and gene expression. Furthermore, HB-EGF signaling modulates FGF-2-mediated NADPH oxidase 1 activation that favors casein kinase 2 (CK2)-mediated phosphorylation/activation of Nrf2 associated with caveolin 1 in caveolae. Higher shear stress (>15 dyn/cm2) induces vesicular exocytosis of BDNF from endothelial cells, and we propose that BDNF via the p75NTR receptor could induce CK2-mediated Nrf2 activation. Unidirectional laminar shear stress upregulates gene expression of FGF-2 and BDNF and generation of 15d-PGJ2, which cooperate in sustaining Nrf2 activation to protect endothelial cells against oxidative damage.
Collapse
Affiliation(s)
- Tetsuro Ishii
- School of Medicine, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan.
| | - Eiji Warabi
- School of Medicine, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan.
| | - Giovanni E Mann
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, King's College London, 150 Stamford Street, London, SE1 9NH, UK.
| |
Collapse
|
47
|
Li J, Fang Y, Wu D. Mechanical forces and metabolic changes cooperate to drive cellular memory and endothelial phenotypes. CURRENT TOPICS IN MEMBRANES 2021; 87:199-253. [PMID: 34696886 DOI: 10.1016/bs.ctm.2021.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Endothelial cells line the innermost layer of arterial, venous, and lymphatic vascular tree and accordingly are subject to hemodynamic, stretch, and stiffness mechanical forces. Normally quiescent, endothelial cells have a hemodynamic set point and become "activated" in response to disturbed hemodynamics, which may signal impending nutrient or gas depletion. Endothelial cells in the majority of tissue beds are normally inactivated and maintain vessel barrier functions, are anti-inflammatory, anti-coagulant, and anti-thrombotic. However, under aberrant mechanical forces, endothelial signaling transforms in response, resulting cellular changes that herald pathological diseases. Endothelial cell metabolism is now recognized as the primary intermediate pathway that undergirds cellular transformation. In this review, we discuss the various mechanical forces endothelial cells sense in the large vessels, microvasculature, and lymphatics, and how changes in environmental mechanical forces result in changes in metabolism, which ultimately influence cell physiology, cellular memory, and ultimately disease initiation and progression.
Collapse
Affiliation(s)
- Jin Li
- Committee on Molecular Metabolism and Nutrition, Biological Sciences Division, University of Chicago, Chicago, IL, United States; Department of Medicine, Biological Sciences Division, University of Chicago, Chicago, IL, United States
| | - Yun Fang
- Committee on Molecular Metabolism and Nutrition, Biological Sciences Division, University of Chicago, Chicago, IL, United States; Department of Medicine, Biological Sciences Division, University of Chicago, Chicago, IL, United States
| | - David Wu
- Committee on Molecular Metabolism and Nutrition, Biological Sciences Division, University of Chicago, Chicago, IL, United States; Department of Medicine, Biological Sciences Division, University of Chicago, Chicago, IL, United States.
| |
Collapse
|
48
|
Negri S, Faris P, Moccia F. Reactive Oxygen Species and Endothelial Ca 2+ Signaling: Brothers in Arms or Partners in Crime? Int J Mol Sci 2021; 22:ijms22189821. [PMID: 34575985 PMCID: PMC8465413 DOI: 10.3390/ijms22189821] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 12/20/2022] Open
Abstract
An increase in intracellular Ca2+ concentration ([Ca2+]i) controls virtually all endothelial cell functions and is, therefore, crucial to maintain cardiovascular homeostasis. An aberrant elevation in endothelial can indeed lead to severe cardiovascular disorders. Likewise, moderate amounts of reactive oxygen species (ROS) induce intracellular Ca2+ signals to regulate vascular functions, while excessive ROS production may exploit dysregulated Ca2+ dynamics to induce endothelial injury. Herein, we survey how ROS induce endothelial Ca2+ signals to regulate vascular functions and, vice versa, how aberrant ROS generation may exploit the Ca2+ handling machinery to promote endothelial dysfunction. ROS elicit endothelial Ca2+ signals by regulating inositol-1,4,5-trisphosphate receptors, sarco-endoplasmic reticulum Ca2+-ATPase 2B, two-pore channels, store-operated Ca2+ entry (SOCE), and multiple isoforms of transient receptor potential (TRP) channels. ROS-induced endothelial Ca2+ signals regulate endothelial permeability, angiogenesis, and generation of vasorelaxing mediators and can be exploited to induce therapeutic angiogenesis, rescue neurovascular coupling, and induce cancer regression. However, an increase in endothelial [Ca2+]i induced by aberrant ROS formation may result in endothelial dysfunction, inflammatory diseases, metabolic disorders, and pulmonary artery hypertension. This information could pave the way to design alternative treatments to interfere with the life-threatening interconnection between endothelial ROS and Ca2+ signaling under multiple pathological conditions.
Collapse
|
49
|
Yang T, Xiao H, Liu X, Wang Z, Zhang Q, Wei N, Guo X. Vascular Normalization: A New Window Opened for Cancer Therapies. Front Oncol 2021; 11:719836. [PMID: 34476218 PMCID: PMC8406857 DOI: 10.3389/fonc.2021.719836] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/23/2021] [Indexed: 12/17/2022] Open
Abstract
Preclinical and clinical antiangiogenic approaches, with multiple side effects such as resistance, have not been proved to be very successful in treating tumor blood vessels which are important targets for tumor therapy. Meanwhile, restoring aberrant tumor blood vessels, known as tumor vascular normalization, has been shown not only capable of reducing tumor invasion and metastasis but also of enhancing the effectiveness of chemotherapy, radiation therapy, and immunotherapy. In addition to the introduction of such methods of promoting tumor vascular normalization such as maintaining the balance between proangiogenic and antiangiogenic factors and targeting endothelial cell metabolism, microRNAs, and the extracellular matrix, the latest molecular mechanisms and the potential connections between them were primarily explored. In particular, the immunotherapy-induced normalization of blood vessels further promotes infiltration of immune effector cells, which in turn improves immunotherapy, thus forming an enhanced loop. Thus, immunotherapy in combination with antiangiogenic agents is recommended. Finally, we introduce the imaging technologies and serum markers, which can be used to determine the window for tumor vascular normalization.
Collapse
Affiliation(s)
- Ting Yang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongqi Xiao
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoxia Liu
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhihui Wang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qingbai Zhang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Nianjin Wei
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinggang Guo
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
50
|
Koller A, Laughlin MH, Cenko E, de Wit C, Tóth K, Bugiardini R, Trifunovits D, Vavlukis M, Manfrini O, Lelbach A, Dornyei G, Padro T, Badimon L, Tousoulis D, Gielen S, Duncker DJ. Functional and structural adaptations of the coronary macro- and micro-vasculature to regular aerobic exercise by activation of physiological, cellular and molecular mechanisms: Esc Working Group on Coronary Pathophysiology & Microcirculation Position Paper. Cardiovasc Res 2021; 118:357-371. [PMID: 34358290 DOI: 10.1093/cvr/cvab246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 06/01/2021] [Accepted: 08/04/2021] [Indexed: 11/14/2022] Open
Abstract
Regular aerobic exercise (RAEX) elicits several positive adaptations in all organs and tissues of the body, culminating in improved health and well-being. Indeed, in over half a century, many studies have shown the benefit of RAEX on cardiovascular outcome in terms of morbidity and mortality. RAEX elicits a wide range of functional and structural adaptations in the heart and its coronary circulation, all of which are to maintain optimal myocardial oxygen and nutritional supply during increased demand. Although there is no evidence suggesting that oxidative metabolism is limited by coronary blood flow (CBF) rate in the normal heart even during maximal exercise, increased CBF and capillary exchange capacities have been reported. Adaptations of coronary macro- and microvessels include outward remodeling of epicardial coronary arteries, increased coronary arteriolar size and density, and increased capillary surface area. In addition, there are adjustments in the neural and endothelial regulation of coronary macrovascular tone. Similarly, there are several adaptations at the level of microcirculation, including enhanced smooth muscle dependent pressure-induced myogenic constriction and upregulated endothelium-dependent flow-/shear-stress-induced dilation, increasing the range of diameter change. Alterations in the signaling interaction between coronary vessels and cardiac metabolism have also been described. At the molecular and cellular level, ion channels are key players in the local coronary vascular adaptations to RAEX, with enhanced activation of influx of Ca2+ contributing to the increased myogenic tone (via voltage gated Ca2+ channels) as well as the enhanced endothelium-dependent dilation (via TRPV4 channels). Finally, RAEX elicits a number of beneficial effects on several hemorheological variables that may further improve CBF and myocardial oxygen delivery and nutrient exchange in the microcirculation by stabilizing and extending the range and further optimizing the regulation of myocardial blood flow during exercise. These adaptations also act to prevent and/or delay the development of coronary and cardiac diseases.
Collapse
Affiliation(s)
- Akos Koller
- Department of Translational Medicine, Semmelweis University, Budapest, Hungary; Research Center for Sports Physiology, University of Physical Education, Budapest, Hungary; Department of Physiology, New York Medical College, Valhalla, NY, 10595, USA
| | - M Harold Laughlin
- Department of Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Edina Cenko
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Cor de Wit
- Institut für Physiologie, Universitat zu Lu ¨beck, Lu beck, Germany and15DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/Lu ¨beck, Lubeck, Germany
| | - Kálmán Tóth
- Division of Cardiology, 1st Department of Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Raffaele Bugiardini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Danijela Trifunovits
- Cardiology Department, Clinical Centre of Serbia and Faculty of Medicine University of Belgrade, Belgrade, Serbia
| | - Marija Vavlukis
- University Clinic for Cardiology, Medical Faculty, Ss' Cyril andMethodius University, Skopje, Republic of Macedonia
| | - Olivia Manfrini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Adam Lelbach
- Departmental Group of Geriatrics, Department of Internal Medicine and Oncology, Faculty of Medicine, Semmelweis University, Budapest, Dr. Rose Private Hospital, Budapest, Hungary
| | - Gabriella Dornyei
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
| | - Teresa Padro
- Cardiovascular Program-ICCC, Research Institute Hospital Santa Creu i Sant Pau; IIB-Sant Pau; CiberCV-Institute Carlos III; Barcelona, Spain
| | - Lina Badimon
- Cardiovascular Program-ICCC, Research Institute Hospital Santa Creu i Sant Pau; IIB-Sant Pau; CiberCV-Institute Carlos III; Barcelona, Spain
| | - Dimitris Tousoulis
- First Department of Cardiology, Hippokration Hospital, University of Athens Medical School, Athens, Greece
| | - Stephan Gielen
- Department of Cardiology, Angiology, and Intensive Care Medicine, Klinikum Lippe, Detmold, Germany
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Thoraxenter, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| |
Collapse
|