51
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Wei L, Mousawi F, Li D, Roger S, Li J, Yang X, Jiang LH. Adenosine Triphosphate Release and P2 Receptor Signaling in Piezo1 Channel-Dependent Mechanoregulation. Front Pharmacol 2019; 10:1304. [PMID: 31780935 PMCID: PMC6853025 DOI: 10.3389/fphar.2019.01304] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/15/2019] [Indexed: 12/16/2022] Open
Abstract
Organs and tissues and their constituent cells are physiologically submitted to diverse types of mechanical forces or stress, one common sequence of which is release of intracellular ATP into extracellular space. Extracellular ATP is a well-established autocrine or paracrine signaling molecule that regulates multiple cell functions and mediates cell-to-cell communications via activating the purinergic P2 receptors, more specifically, ligand-gated ion channel P2X receptors and some of the G-protein-coupled P2Y receptors. The molecular mechanisms that sense mechanical and transduce forces to trigger ATP release are poorly understood. The Piezo1, a newly identified mechanosensing ion channel, shows widespread expression and confers mechanosensitivity in many different types of cells. In this mini-review, we briefly introduce the Piezo1 channel and discuss the evidence that supports its important role in the mechanoregulation of diverse cell functions and, more specifically, critical engagement of ATP release and subsequent P2 receptor activation in Piezo1 channel-dependent mechanoregulation. Such ATP release-mediated coupling of the Piezo1 channel and P2 receptors may serve a signaling mechanism that is more common than we currently understand in transducing mechanical information to regulation of the attendant cell functions in various organs and tissues.
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Affiliation(s)
- Linyu Wei
- Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, Xinxiang Medical University, Xinxiang, China
| | - Fatema Mousawi
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Dongliang Li
- Department of Physiology, Sanquan College of Xinxiang Medical University, Xinxiang, China
| | - Sébastien Roger
- EA4245, Transplantation, Immunology and Inflammation, Faculty of Medicine, University of Tours, Tours, France
| | - Jing Li
- Lingnan Medical Research Centre, School of Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xuebin Yang
- Department of Oral Biology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Lin-Hua Jiang
- Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, Xinxiang Medical University, Xinxiang, China
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
- EA4245, Transplantation, Immunology and Inflammation, Faculty of Medicine, University of Tours, Tours, France
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52
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Beech DJ, Kalli AC. Force Sensing by Piezo Channels in Cardiovascular Health and Disease. Arterioscler Thromb Vasc Biol 2019; 39:2228-2239. [PMID: 31533470 PMCID: PMC6818984 DOI: 10.1161/atvbaha.119.313348] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/03/2019] [Indexed: 02/07/2023]
Abstract
Mechanical forces are fundamental in cardiovascular biology, and deciphering the mechanisms by which they act remains a testing frontier in cardiovascular research. Here, we raise awareness of 2 recently discovered proteins, Piezo1 and Piezo2, which assemble as transmembrane triskelions to combine exquisite force sensing with regulated calcium influx. There is emerging evidence for their importance in endothelial shear stress sensing and secretion, NO generation, vascular tone, angiogenesis, atherosclerosis, vascular permeability and remodeling, blood pressure regulation, insulin sensitivity, exercise performance, and baroreceptor reflex, and there are early suggestions of relevance to cardiac fibroblasts and myocytes. Human genetic analysis points to significance in lymphatic disease, anemia, varicose veins, and potentially heart failure, hypertension, aneurysms, and stroke. These channels appear to be versatile force sensors, used creatively to inform various force-sensing situations. We discuss emergent concepts and controversies and suggest that the potential for new important understanding is substantial.
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Affiliation(s)
- David J. Beech
- From the Department of Discovery and Translational Science, Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, England, United Kingdom
| | - Antreas C. Kalli
- From the Department of Discovery and Translational Science, Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, England, United Kingdom
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53
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Velasco-Estevez M, Rolle SO, Mampay M, Dev KK, Sheridan GK. Piezo1 regulates calcium oscillations and cytokine release from astrocytes. Glia 2019; 68:145-160. [PMID: 31433095 DOI: 10.1002/glia.23709] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/16/2019] [Accepted: 08/07/2019] [Indexed: 12/11/2022]
Abstract
Astrocytes are important for information processing in the brain and they achieve this by fine-tuning neuronal communication via continuous uptake and release of biochemical modulators of neurotransmission and synaptic plasticity. Often overlooked are their important functions in mechanosensation. Indeed, astrocytes can detect pathophysiological changes in the mechanical properties of injured, ageing, or degenerating brain tissue. We have recently shown that astrocytes surrounding mechanically-stiff amyloid plaques upregulate the mechanosensitive ion channel, Piezo1. Moreover, ageing transgenic Alzheimer's rats harboring a chronic peripheral bacterial infection displayed enhanced Piezo1 expression in amyloid plaque-reactive astrocytes of the hippocampus and cerebral cortex. Here, we have shown that the bacterial endotoxin, lipopolysaccharide (LPS), also upregulates Piezo1 in primary mouse cortical astrocyte cultures in vitro. Activation of Piezo1, via the small molecule agonist Yoda1, enhanced Ca2+ influx in both control and LPS-stimulated astrocytes. Moreover, Yoda1 augmented intracellular Ca2+ oscillations but decreased subsequent Ca2+ influx in response to adenosine triphosphate (ATP) stimulation. Neither blocking nor activating Piezo1 affected cell viability. However, LPS-stimulated astrocyte cultures exposed to the Piezo1 activator, Yoda1, migrated significantly slower than reactive astrocytes treated with the mechanosensitive channel-blocking peptide, GsMTx4. Furthermore, our data show that activating Piezo1 channels inhibits the release of cytokines and chemokines, such as IL-1β, TNFα, and fractalkine (CX3 CL1), from LPS-stimulated astrocyte cultures. Taken together, our results suggest that astrocytic Piezo1 upregulation may act to dampen neuroinflammation and could be a useful drug target for neuroinflammatory disorders of the brain.
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Affiliation(s)
- María Velasco-Estevez
- Drug Development, Department of Physiology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Sara O Rolle
- Department of Bioengineering, Imperial College London, London, UK.,Francis Crick Institute, London, UK
| | - Myrthe Mampay
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK
| | - Kumlesh K Dev
- Drug Development, Department of Physiology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Graham K Sheridan
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK.,School of Life Sciences, Queen's Medical Centre, University of Nottingham, Nottingham, UK
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Ellefsen KL, Holt JR, Chang AC, Nourse JL, Arulmoli J, Mekhdjian AH, Abuwarda H, Tombola F, Flanagan LA, Dunn AR, Parker I, Pathak MM. Myosin-II mediated traction forces evoke localized Piezo1-dependent Ca 2+ flickers. Commun Biol 2019; 2:298. [PMID: 31396578 PMCID: PMC6685976 DOI: 10.1038/s42003-019-0514-3] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 06/18/2019] [Indexed: 02/05/2023] Open
Abstract
Piezo channels transduce mechanical stimuli into electrical and chemical signals to powerfully influence development, tissue homeostasis, and regeneration. Studies on Piezo1 have largely focused on transduction of "outside-in" mechanical forces, and its response to internal, cell-generated forces remains poorly understood. Here, using measurements of endogenous Piezo1 activity and traction forces in native cellular conditions, we show that cellular traction forces generate spatially-restricted Piezo1-mediated Ca2+ flickers in the absence of externally-applied mechanical forces. Although Piezo1 channels diffuse readily in the plasma membrane and are widely distributed across the cell, their flicker activity is enriched near force-producing adhesions. The mechanical force that activates Piezo1 arises from Myosin II phosphorylation by Myosin Light Chain Kinase. We propose that Piezo1 Ca2+ flickers allow spatial segregation of mechanotransduction events, and that mobility allows Piezo1 channels to explore a large number of mechanical microdomains and thus respond to a greater diversity of mechanical cues.
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Affiliation(s)
- Kyle L. Ellefsen
- Department of Neurobiology & Behavior, UC Irvine, Irvine, CA 92697 USA
| | - Jesse R. Holt
- Department of Physiology & Biophysics, UC Irvine, Irvine, CA 92697 USA
- Sue and Bill Gross Stem Cell Research Center, UC Irvine, Irvine, CA 92697 USA
- Center for Complex Biological Systems, UC Irvine, Irvine, CA 92697 USA
| | - Alice C. Chang
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305 USA
| | - Jamison L. Nourse
- Department of Physiology & Biophysics, UC Irvine, Irvine, CA 92697 USA
- Sue and Bill Gross Stem Cell Research Center, UC Irvine, Irvine, CA 92697 USA
| | - Janahan Arulmoli
- Sue and Bill Gross Stem Cell Research Center, UC Irvine, Irvine, CA 92697 USA
- Department of Biomedical Engineering, UC Irvine, Irvine, CA 92697 USA
| | - Armen H. Mekhdjian
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305 USA
| | - Hamid Abuwarda
- Department of Physiology & Biophysics, UC Irvine, Irvine, CA 92697 USA
- Sue and Bill Gross Stem Cell Research Center, UC Irvine, Irvine, CA 92697 USA
| | - Francesco Tombola
- Department of Physiology & Biophysics, UC Irvine, Irvine, CA 92697 USA
| | - Lisa A. Flanagan
- Sue and Bill Gross Stem Cell Research Center, UC Irvine, Irvine, CA 92697 USA
- Department of Biomedical Engineering, UC Irvine, Irvine, CA 92697 USA
- Department of Neurology, UC Irvine, Irvine, CA 92697 USA
| | - Alexander R. Dunn
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305 USA
- Stanford Cardiovascular Institute, Stanford School of Medicine, Stanford, CA 94305 USA
| | - Ian Parker
- Department of Neurobiology & Behavior, UC Irvine, Irvine, CA 92697 USA
- Department of Physiology & Biophysics, UC Irvine, Irvine, CA 92697 USA
| | - Medha M. Pathak
- Department of Physiology & Biophysics, UC Irvine, Irvine, CA 92697 USA
- Sue and Bill Gross Stem Cell Research Center, UC Irvine, Irvine, CA 92697 USA
- Center for Complex Biological Systems, UC Irvine, Irvine, CA 92697 USA
- Department of Biomedical Engineering, UC Irvine, Irvine, CA 92697 USA
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55
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Han Y, Liu C, Zhang D, Men H, Huo L, Geng Q, Wang S, Gao Y, Zhang W, Zhang Y, Jia Z. Mechanosensitive ion channel Piezo1 promotes prostate cancer development through the activation of the Akt/mTOR pathway and acceleration of cell cycle. Int J Oncol 2019; 55:629-644. [PMID: 31322184 PMCID: PMC6685593 DOI: 10.3892/ijo.2019.4839] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 07/01/2019] [Indexed: 12/18/2022] Open
Abstract
Prostate cancer is one of the most common types of cancer affecting men worldwide; however, its etiology and pathological mechanisms remain poorly understood. Mechanical stimulation plays a key role in prostate cancer development. Piezo type mechanosensitive ion channel component 1 (Piezo1), which functions as a cell sensor and transducer of mechanical stimuli, may have a crucial role in the development of prostate cancer. In the present study, the expression of the Piezo1 channel was demonstrated to be significantly elevated in prostate cancer cell lines and in human prostate malignant tumor tissues. Downregulation of Piezo1 significantly suppressed the viability, proliferation and migration of prostate cancer cells in vitro, and inhibited prostate tumor growth in vivo. The activation of the Akt/mTOR pathway or acceleration of cell cycle progression from G0/G1 to S phase may downstream consequences of Piezo 1 signal pathway activation. Downregulation of Piezo1 considerably suppressed Ca2+ signal increments, inhibited the phosphorylation of Akt and mTOR and arrested the cell cycle of prostate cancer cells at G0/G1 phase in while inhibiting the activation of CDK4 and cyclin D1. Taken together, these findings suggest that Piezo1 channels have a crucial role in prostate cancer development and may, therefore, be a novel therapeutic target in the treatment of prostate cancer.
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Affiliation(s)
- Yu Han
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Chao Liu
- Department of Laboratory Animal Science, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Dongfang Zhang
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Hongchao Men
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Lifang Huo
- Center for Innovative Drug Research and Evaluation, Institute of Medical Science and Health, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Qiaowei Geng
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Shengnan Wang
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Yiting Gao
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Wei Zhang
- Center for Innovative Drug Research and Evaluation, Institute of Medical Science and Health, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Yongjian Zhang
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Zhanfeng Jia
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
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56
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Chubinskiy-Nadezhdin VI, Vasileva VY, Vassilieva IO, Sudarikova AV, Morachevskaya EA, Negulyaev YA. Agonist-induced Piezo1 activation suppresses migration of transformed fibroblasts. Biochem Biophys Res Commun 2019; 514:173-179. [DOI: 10.1016/j.bbrc.2019.04.139] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 04/18/2019] [Indexed: 12/15/2022]
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57
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Pethő Z, Najder K, Bulk E, Schwab A. Mechanosensitive ion channels push cancer progression. Cell Calcium 2019; 80:79-90. [PMID: 30991298 DOI: 10.1016/j.ceca.2019.03.007] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 03/26/2019] [Accepted: 03/26/2019] [Indexed: 02/07/2023]
Abstract
In many cases, the mechanical properties of a tumor are different from those of the host tissue. Mechanical cues regulate cancer development by affecting both tumor cells and their microenvironment, by altering cell migration, proliferation, extracellular matrix remodeling and metastatic spread. Cancer cells sense mechanical stimuli such as tissue stiffness, shear stress, tissue pressure of the extracellular space (outside-in mechanosensation). These mechanical cues are transduced into a cellular response (e. g. cell migration and proliferation; inside-in mechanotransduction) or to a response affecting the microenvironment (e. g. inducing a fibrosis or building up growth-induced pressure; inside-out mechanotransduction). These processes heavily rely on mechanosensitive membrane proteins, prominently ion channels. Mechanosensitive ion channels are involved in the Ca2+-signaling of the tumor and stroma cells, both directly, by mediating Ca2+ influx (e. g. Piezo and TRP channels), or indirectly, by maintaining the electrochemical gradient necessary for Ca2+ influx (e. g. K2P, KCa channels). This review aims to discuss the diverse roles of mechanosenstive ion channels in cancer progression, especially those involved in Ca2+-signaling, by pinpointing their functional relevance in tumor pathophysiology.
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Affiliation(s)
- Zoltán Pethő
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany.
| | - Karolina Najder
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany
| | - Etmar Bulk
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany
| | - Albrecht Schwab
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany
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58
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Loss of stretch-activated channels, PIEZOs, accelerates non-small cell lung cancer progression and cell migration. Biosci Rep 2019; 39:BSR20181679. [PMID: 30745454 PMCID: PMC6430724 DOI: 10.1042/bsr20181679] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 01/21/2019] [Accepted: 02/07/2019] [Indexed: 12/19/2022] Open
Abstract
PIEZO channels are stretch-activated channels involved in wound sealing and cell proliferation in many cell types. A recent study focussing on lung cancer (LC), using next-generation sequencing analysis, has indicated that PIEZO functions were implicated in LC development. However, the expression and role of PIEZO channels in non-small cell LC (NSCLC) progression require elucidation. In the current study, we investigated the gene expression and alteration frequency in human NSCLC tissue, accessed the prognostic roles of PIEZO channels in NSCLC patients, and further studied the effect of PIEZOs in NSCLC cell proliferation and tumor growth in vivo. The mRNA expression of PIEZO1 and 2 was clearly decreased in NSCLC tumor tissue compared with that in matched adjacent non-tumor tissue. In human NSCLC tissues, PIEZO1 gene expression exhibits a highly deep deletion rate, and PIEZO2 mainly exhibits mutation in gene expression. High mRNA expression of PIEZO channels was found to correlate with better overall survival (OS) for NSCLC patients, especially for patients with lung adenocarcinoma (LUAD), but not for patients with lung squamous cell carcinoma (LUSC). The prognostic role of PIEZO channels was more sensitive in female patients than male patients, and more sensitive in patients at earlier stages than patients at latter stages. Knockdown of PIEZO1 or PIEZO2 in NSCLC cells significantly promoted cell migration in vitro and tumor growth in vivo. These results indicate the critical prognostic values of the PIEZO channels in NSCLC. This information will be beneficial to understand the pathological mechanism of NSCLC and to generate effective therapeutic approaches for NSCLC patients.
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59
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Shi R, Jiao Z, Yu A, Wang T. Long noncoding antisense RNA FAM83A-AS1 promotes lung cancer cell progression by increasing FAM83A. J Cell Biochem 2019; 120:10505-10512. [PMID: 30659636 PMCID: PMC6590457 DOI: 10.1002/jcb.28336] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 12/06/2018] [Indexed: 12/13/2022]
Abstract
The abnormal expression of long noncoding RNAs (lncRNAs) is closely associated with human cancers. As one special group of lncRNAs, natural antisense transcripts (NATs) can be transcribed from both DNA strands at the same locus but in the opposite direction from the gene transcript. Their expression levels are altered in many cancers, but their roles are poorly understood. We strove to find NATs involved in human non-small-cell lung cancer (NSCLC) and to reveal their mechanism of action in cancer. We analysed the NATs in NSCLC from the TCGA database by circlncRNAnet. One NAT, family with sequence similarity 83 member A antisense RNA 1 (FAM83A-AS1), was found to be markedly upregulated and positively correlated with its cognate sense counterpart, FAM83A, in NSCLC. Moreover, overexpression of FAM83A-AS1 increased FAM38A protein levels and induced ERK1/2 phosphorylation downstream of FAM83A in cells. Finally, overexpression of FAM83A-AS1 promoted LUAD cell proliferation and invasion. In summary, lncRNA FAM83A-AS1 promotes LUAD by increasing FAM83A expression.
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Affiliation(s)
- Rongxing Shi
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Zichen Jiao
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China.,Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Nanjing Medical University, Nanjing, China
| | - Ao Yu
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Tao Wang
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China.,Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Nanjing Medical University, Nanjing, China
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60
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Kang H, Hong Z, Zhong M, Klomp J, Bayless KJ, Mehta D, Karginov AV, Hu G, Malik AB. Piezo1 mediates angiogenesis through activation of MT1-MMP signaling. Am J Physiol Cell Physiol 2018; 316:C92-C103. [PMID: 30427721 DOI: 10.1152/ajpcell.00346.2018] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Angiogenesis is initiated in response to a variety of external cues, including mechanical and biochemical stimuli; however, the underlying signaling mechanisms remain unclear. Here, we investigated the proangiogenic role of the endothelial mechanosensor Piezo1. Genetic deletion and pharmacological inhibition of Piezo1 reduced endothelial sprouting and lumen formation induced by wall shear stress and proangiogenic mediator sphingosine 1-phosphate, whereas Piezo1 activation by selective Piezo1 activator Yoda1 enhanced sprouting angiogenesis. Similarly to wall shear stress, sphingosine 1-phosphate functioned by activating the Ca2+ gating function of Piezo1, which in turn signaled the activation of the matrix metalloproteinase-2 and membrane type 1 matrix metalloproteinase during sprouting angiogenesis. Studies in mice in which Piezo1 was conditionally deleted in endothelial cells demonstrated the requisite role of sphingosine 1-phosphate-dependent activation of Piezo1 in mediating angiogenesis in vivo. These results taken together suggest that both mechanical and biochemical stimuli trigger Piezo1-mediated Ca2+ influx and thereby activate matrix metalloproteinase-2 and membrane type 1 matrix metalloproteinase and synergistically facilitate sprouting angiogenesis.
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Affiliation(s)
- Hojin Kang
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois.,Department of Anesthesiology, The University of Illinois College of Medicine , Chicago, Illinois
| | - Zhigang Hong
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois
| | - Ming Zhong
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois
| | - Jennifer Klomp
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois
| | - Kayla J Bayless
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center , College Station, Texas
| | - Dolly Mehta
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois
| | - Andrei V Karginov
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois
| | - Guochang Hu
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois.,Department of Anesthesiology, The University of Illinois College of Medicine , Chicago, Illinois
| | - Asrar B Malik
- Department of Pharmacology and The Center for Lung and Vascular Biology, The University of Illinois College of Medicine , Chicago, Illinois
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61
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Prevarskaya N, Skryma R, Shuba Y. Ion Channels in Cancer: Are Cancer Hallmarks Oncochannelopathies? Physiol Rev 2018; 98:559-621. [PMID: 29412049 DOI: 10.1152/physrev.00044.2016] [Citation(s) in RCA: 272] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Genomic instability is a primary cause and fundamental feature of human cancer. However, all cancer cell genotypes generally translate into several common pathophysiological features, often referred to as cancer hallmarks. Although nowadays the catalog of cancer hallmarks is quite broad, the most common and obvious of them are 1) uncontrolled proliferation, 2) resistance to programmed cell death (apoptosis), 3) tissue invasion and metastasis, and 4) sustained angiogenesis. Among the genes affected by cancer, those encoding ion channels are present. Membrane proteins responsible for signaling within cell and among cells, for coupling of extracellular events with intracellular responses, and for maintaining intracellular ionic homeostasis ion channels contribute to various extents to pathophysiological features of each cancer hallmark. Moreover, tight association of these hallmarks with ion channel dysfunction gives a good reason to classify them as special type of channelopathies, namely oncochannelopathies. Although the relation of cancer hallmarks to ion channel dysfunction differs from classical definition of channelopathies, as disease states causally linked with inherited mutations of ion channel genes that alter channel's biophysical properties, in a broader context of the disease state, to which pathogenesis ion channels essentially contribute, such classification seems absolutely appropriate. In this review the authors provide arguments to substantiate such point of view.
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Affiliation(s)
- Natalia Prevarskaya
- INSERM U-1003, Equipe Labellisée par la Ligue Nationale contre le Cancer et LABEX, Université Lille1 , Villeneuve d'Ascq , France ; Bogomoletz Institute of Physiology and International Center of Molecular Physiology, NASU, Kyiv-24, Ukraine
| | - Roman Skryma
- INSERM U-1003, Equipe Labellisée par la Ligue Nationale contre le Cancer et LABEX, Université Lille1 , Villeneuve d'Ascq , France ; Bogomoletz Institute of Physiology and International Center of Molecular Physiology, NASU, Kyiv-24, Ukraine
| | - Yaroslav Shuba
- INSERM U-1003, Equipe Labellisée par la Ligue Nationale contre le Cancer et LABEX, Université Lille1 , Villeneuve d'Ascq , France ; Bogomoletz Institute of Physiology and International Center of Molecular Physiology, NASU, Kyiv-24, Ukraine
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62
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Piezo proteins: incidence and abundance in the enteric nervous system. Is there a link with mechanosensitivity? Cell Tissue Res 2018; 375:605-618. [PMID: 30324494 DOI: 10.1007/s00441-018-2926-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 09/10/2018] [Indexed: 10/28/2022]
Abstract
Piezo channels play fundamental roles in many physiological processes. Their presence and functional role in the enteric nervous system is still not known. We hypothesize that they play a role in mechanotransduction in enteric neurons. Our aims are to quantify the presence of both Piezo1 and 2 in enteric neurons throughout the gastrointestinal tract using immunohistochemistry and analyze their function(s) using neuroimaging techniques and pharmacological investigations. In order to perform a systematic and comparative study, we performed our experiments in gastrointestinal tissue from guinea pigs, mice and humans. Piezo1 (20-70%) is expressed by both enteric neuronal cell bodies and fibers in the myenteric and submucosal plexi of all the species investigated. Generally, Piezo1 expressing somata are more numerous in the submucosal plexus (50-80%) than in the myenteric plexus (15-35%) apart from the stomach where Piezo1 is expressed in up to 60% of cell bodies. Myenteric Piezo1 neurons mainly (60-100%) but not exclusively, also express nitric oxide synthase, a minority express choline acetyltransferase. In the submucosal plexus, Piezo1 neurons co-express vasoactive intestinal peptide (40-90%). Conversely, expression of Piezo2 is extremely rare in the somata of enteric neurons and is present in few neurites. In functional experiments, 38-76% of the mechanosensitive neurons expressed Piezo1 channels. Statistical analysis showed a positive significant correlation between mechanosensitive and Piezo1 positive neurons. However, pharmacological experiments using an activator and an inhibitor of Piezo channels did not demonstrate changes in mechanotransduction. A major role of Piezo1 in the mechanosensitivity of enteric neurons can be excluded.
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63
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Zhang J, Zhou Y, Huang T, Wu F, Liu L, Kwan JSH, Cheng ASL, Yu J, To KF, Kang W. PIEZO1 functions as a potential oncogene by promoting cell proliferation and migration in gastric carcinogenesis. Mol Carcinog 2018; 57:1144-1155. [DOI: 10.1002/mc.22831] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Jinglin Zhang
- Department of Anatomical and Cellular Pathology; State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong; Hong Kong SAR PR China
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Li Ka Shing Institute of Health Science; Sir Y.K. Pao Cancer Center; The Chinese University of Hong Kong; Hong Kong SAR PR China
| | - Yuhang Zhou
- Department of Anatomical and Cellular Pathology; State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong; Hong Kong SAR PR China
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Li Ka Shing Institute of Health Science; Sir Y.K. Pao Cancer Center; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen PR China
| | - Tingting Huang
- Department of Anatomical and Cellular Pathology; State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong; Hong Kong SAR PR China
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Li Ka Shing Institute of Health Science; Sir Y.K. Pao Cancer Center; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen PR China
| | - Feng Wu
- Department of Anatomical and Cellular Pathology; State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong; Hong Kong SAR PR China
| | - Liping Liu
- Department of Hepatobiliary and Pancreatic Surgery; Shenzhen People's Hospital; Second Clinical Medical College of Jinan University; Shenzhen Guangdong Province PR China
| | - Johnny S. H. Kwan
- Department of Anatomical and Cellular Pathology; State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong; Hong Kong SAR PR China
| | - Alfred S. L. Cheng
- Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen PR China
- School of Biomedical Sciences; The Chinese University of Hong Kong; Hong Kong PR China
| | - Jun Yu
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen PR China
- Department of Medicine and Therapeutics; The Chinese University of Hong Kong; Hong Kong PR China
| | - Ka Fai To
- Department of Anatomical and Cellular Pathology; State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong; Hong Kong SAR PR China
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Li Ka Shing Institute of Health Science; Sir Y.K. Pao Cancer Center; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen PR China
| | - Wei Kang
- Department of Anatomical and Cellular Pathology; State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong; Hong Kong SAR PR China
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Li Ka Shing Institute of Health Science; Sir Y.K. Pao Cancer Center; The Chinese University of Hong Kong; Hong Kong SAR PR China
- Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen PR China
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64
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Northcott JM, Dean IS, Mouw JK, Weaver VM. Feeling Stress: The Mechanics of Cancer Progression and Aggression. Front Cell Dev Biol 2018. [PMID: 29541636 PMCID: PMC5835517 DOI: 10.3389/fcell.2018.00017] [Citation(s) in RCA: 222] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The tumor microenvironment is a dynamic landscape in which the physical and mechanical properties evolve dramatically throughout cancer progression. These changes are driven by enhanced tumor cell contractility and expansion of the growing tumor mass, as well as through alterations to the material properties of the surrounding extracellular matrix (ECM). Consequently, tumor cells are exposed to a number of different mechanical inputs including cell–cell and cell-ECM tension, compression stress, interstitial fluid pressure and shear stress. Oncogenes engage signaling pathways that are activated in response to mechanical stress, thereby reworking the cell's intrinsic response to exogenous mechanical stimuli, enhancing intracellular tension via elevated actomyosin contraction, and influencing ECM stiffness and tissue morphology. In addition to altering their intracellular tension and remodeling the microenvironment, cells actively respond to these mechanical perturbations phenotypically through modification of gene expression. Herein, we present a description of the physical changes that promote tumor progression and aggression, discuss their interrelationship and highlight emerging therapeutic strategies to alleviate the mechanical stresses driving cancer to malignancy.
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Affiliation(s)
- Josette M Northcott
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States
| | - Ivory S Dean
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States
| | - Janna K Mouw
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States
| | - Valerie M Weaver
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States.,Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, United States.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, United States.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, United States.,UCSF Helen Diller Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, United States
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65
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Ohsawa S, Vaughen J, Igaki T. Cell Extrusion: A Stress-Responsive Force for Good or Evil in Epithelial Homeostasis. Dev Cell 2018; 44:284-296. [PMID: 29408235 DOI: 10.1016/j.devcel.2018.01.009] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 12/31/2022]
Abstract
Epithelial tissues robustly respond to internal and external stressors via dynamic cellular rearrangements. Cell extrusion acts as a key regulator of epithelial homeostasis by removing apoptotic cells, orchestrating morphogenesis, and mediating competitive cellular battles during tumorigenesis. Here, we delineate the diverse functions of cell extrusion during development and disease. We emphasize the expanding role for apoptotic cell extrusion in exerting morphogenetic forces, as well as the strong intersection of cell extrusion with cell competition, a homeostatic mechanism that eliminates aberrant or unfit cells. While cell competition and extrusion can exert potent, tumor-suppressive effects, dysregulation of either critical homeostatic program can fuel cancer progression.
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Affiliation(s)
- Shizue Ohsawa
- Laboratory of Genetics, Graduate School of Biostudies, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - John Vaughen
- Department of Developmental Biology, Stanford School of Medicine, Beckman Center, 279 Campus Drive B300, Stanford, CA 94305, USA
| | - Tatsushi Igaki
- Laboratory of Genetics, Graduate School of Biostudies, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan.
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66
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Nourse JL, Pathak MM. How cells channel their stress: Interplay between Piezo1 and the cytoskeleton. Semin Cell Dev Biol 2017; 71:3-12. [PMID: 28676421 DOI: 10.1016/j.semcdb.2017.06.018] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/23/2017] [Accepted: 06/25/2017] [Indexed: 11/17/2022]
Abstract
Cells constantly encounter mechanical stimuli in their environment, such as dynamic forces and mechanical features of the extracellular matrix. These mechanical cues are transduced into biochemical signals, and integrated with genetic and chemical signals to modulate diverse physiological processes. Cells also actively generate forces to internally transport cargo, to explore the physical properties of their environment and to spatially position themselves and other cells during development. Mechanical forces are therefore central to development, homeostasis, and repair. Several molecular and biophysical strategies are utilized by cells for detecting and generating mechanical forces. Here we discuss an important class of molecules involved in sensing and transducing mechanical forces - mechanically-activated ion channels. We focus primarily on the Piezo1 ion channel, and examine its relationship with the cellular cytoskeleton.
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Affiliation(s)
- Jamison L Nourse
- Department of Physiology & Biophysics, Sue & Bill Gross Stem Cell Research Center, 835 Health Sciences Road, Room 275B, UC Irvine, Irvine, CA 92697, United States
| | - Medha M Pathak
- Department of Physiology & Biophysics, Sue & Bill Gross Stem Cell Research Center, 835 Health Sciences Road, Room 275B, UC Irvine, Irvine, CA 92697, United States.
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67
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Abstract
Mutations in the genes encoding the mechanosensitive cation channels PIEZO1 and PIEZO2 are responsible for multiple hereditary human diseases. Loss-of-function mutations in the human PIEZO1 gene cause autosomal recessive congenital lymphatic dysplasia. Gain-of-function mutations in the human PIEZO1 gene cause the autosomal dominant hemolytic anemia, hereditary xerocytosis (also known as dehydrated stomatocytosis). Loss-of-function mutations in the human PIEZO2 gene cause an autosomal recessive syndrome of muscular atrophy with perinatal respiratory distress, arthrogryposis, and scoliosis. Gain-of-function mutations in the human PIEZO2 gene cause three clinical types of autosomal dominant distal arthrogryposis. This chapter will review the hereditary diseases caused by mutations in the PIEZO genes and will discuss additional physiological systems in which PIEZO channel dysfunction may contribute to human disease pathophysiology.
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Affiliation(s)
- S L Alper
- Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States.
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68
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In Touch With the Mechanosensitive Piezo Channels: Structure, Ion Permeation, and Mechanotransduction. CURRENT TOPICS IN MEMBRANES 2017; 79:159-195. [PMID: 28728816 DOI: 10.1016/bs.ctm.2016.11.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Mechanotransduction, the conversion of mechanical forces into biological signals, plays critical roles in various physiological and pathophysiological processes in mammals, such as conscious sensing of touch, pain, and sound, as well as unconscious sensing of blood flow-associated shear stress, urine flow, and bladder distention. Among the various molecules involved in mechanotransduction, mechanosensitive (MS) cation channels have long been postulated to represent one critical class of mechanotransducers that directly and rapidly converts mechanical force into electrochemical signals. Despite the awareness of their functional significance, the molecular identities of MS cation channels in mammals had remained elusive for decades till the groundbreaking finding that the Piezo family of genes, including Piezo1 and Piezo2, constitutes their essential components. Since their identification about 6years ago, tremendous progress has been made in understanding their physiological and pathophysiological importance in mechanotransduction and their structure-function relationships of being the prototypic class of mammalian MS cation channels. On the one hand, Piezo proteins have been demonstrated to serve as physiologically and pathophysiologically important mechanotransducers for most, if not all, mechanotransduction processes. On the other hand, they have been shown to form a remarkable three-bladed, propeller-shaped homotrimeric channel complex comprising a separable ion-conducting pore module and mechanotransduction modules. In this chapter, we review the major advancements, with a particular focus on the structural and biophysical features that enable Piezo proteins to serve as sophisticated MS cation channels for force sensing, transduction, and ion conduction.
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69
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Alcaino C, Farrugia G, Beyder A. Mechanosensitive Piezo Channels in the Gastrointestinal Tract. CURRENT TOPICS IN MEMBRANES 2017; 79:219-244. [PMID: 28728818 PMCID: PMC5606247 DOI: 10.1016/bs.ctm.2016.11.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Sensation of mechanical forces is critical for normal function of the gastrointestinal (GI) tract and abnormalities in mechanosensation are linked to GI pathologies. In the GI tract there are several mechanosensitive cell types-epithelial enterochromaffin cells, intrinsic and extrinsic enteric neurons, smooth muscle cells and interstitial cells of Cajal. These cells use mechanosensitive ion channels that respond to mechanical forces by altering transmembrane ionic currents in a process called mechanoelectrical coupling. Several mechanosensitive ionic conductances have been identified in the mechanosensory GI cells, ranging from mechanosensitive voltage-gated sodium and calcium channels to the mechanogated ion channels, such as the two-pore domain potassium channels K2P (TREK-1) and nonselective cation channels from the transient receptor potential family. The recently discovered Piezo channels are increasingly recognized as significant contributors to cellular mechanosensitivity. Piezo1 and Piezo2 are nonselective cationic ion channels that are directly activated by mechanical forces and have well-defined biophysical and pharmacologic properties. The role of Piezo channels in the GI epithelium is currently under investigation and their role in the smooth muscle syncytium and enteric neurons is still not known. In this review, we outline the current state of knowledge on mechanosensitive ion channels in the GI tract, with a focus on the known and potential functions of the Piezo channels.
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Affiliation(s)
- C Alcaino
- Mayo Clinic College of Medicine, Rochester, MN, United States
| | - G Farrugia
- Mayo Clinic College of Medicine, Rochester, MN, United States
| | - A Beyder
- Mayo Clinic College of Medicine, Rochester, MN, United States
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70
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Abstract
Mechanotransduction is one of the processes by which cells sense and convert mechanical stimuli into biological signals. Experimental data from various species have revealed crucial roles for mechanotransduction in organ development and a plethora of physiological activities. Piezo proteins have recently been identified as the long-sought-after mechanically activated cation channels in eukaryotes. The architecture of mouse Piezo1 (mPiezo1) channel determined by cryoelectron microscopic single-particle analysis at medium resolution yielded important insights into the mechanical force sensing mechanism. mPiezo1 is found to form a trimeric propeller-like structure with the extracellular domains resembling three distal blades and a central cap. The transmembrane region consists of a central pore module that likely determines the ion-conducting properties of mPiezo1, and three peripheral wings formed by arrays of paired transmembrane helices. Compared with the central pore module, the three distal blades display considerably larger flexibility. In the intracellular region, three long beam-like domains (∼80Å in length) support the whole transmembrane region and connect the mobile peripheral regions to the central pore module. This unique design suggests that the trimeric mPiezo1 may mechanistically function in similar principles as how propellers sense and transduce force to control the ion conductivity. This review summarizes the current knowledge on the structure and proposes possible gating mechanisms of mPiezo1.
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71
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Busch M, Dünker N. Trefoil factor family peptides – friends or foes? Biomol Concepts 2015; 6:343-59. [DOI: 10.1515/bmc-2015-0020] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/20/2015] [Indexed: 12/13/2022] Open
Abstract
AbstractTrefoil factor family (TFF) peptides are a group of molecules bearing a characteristic three-loop trefoil domain. They are mainly secreted in mucous epithelia together with mucins but are also synthesized in the nervous system. For many years, TFF peptides were only known for their wound healing and protective function, e.g. in epithelial protection and restitution. However, experimental evidence has emerged supporting a pivotal role of TFF peptides in oncogenic transformation, tumorigenesis and metastasis. Deregulated expression of TFF peptides at the gene and protein level is obviously implicated in numerous cancers, and opposing functions as oncogenes and tumor suppressors have been described. With regard to the regulation of TFF expression, epigenetic mechanisms as well as the involvement of various miRNAs are new, promising aspects in the field of cancer research. This review will summarize current knowledge about the expression and regulation of TFF peptides and the involvement of TFF peptides in tumor biology and cancerogenesis.
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Affiliation(s)
- Maike Busch
- 1Medical Faculty, Institute for Anatomy II, Department of Neuroanatomy, University of Duisburg-Essen, Hufelandstr. 55, D-45122 Essen, Germany
| | - Nicole Dünker
- 1Medical Faculty, Institute for Anatomy II, Department of Neuroanatomy, University of Duisburg-Essen, Hufelandstr. 55, D-45122 Essen, Germany
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Bai T, Qian W, Zhang L, Wang H, Hou XH, Song J. Bioinformatics analysis of Piezo1 and detection of its expression in the gut. Shijie Huaren Xiaohua Zazhi 2015; 23:4816-4821. [DOI: 10.11569/wcjd.v23.i30.4816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To predict and analyze the physical and chemical properties of Piezo1, and to detect its expression in the intestine.
METHODS: Physical and chemical properties of Piezo1 were predicted with Protparam. Subcellular location was analyzed with ProtComp Version 9.0. Protein secondary structure was predicted with SOPMA program. Three-dimensional model was created with SWISS-MODEL. Location of Piezo1 in the intestine was analyzed by immunohistochemical staining, and real-time quantitative PCR was performed to compare its expression in different segments of the intestine.
RESULTS: Piezo1 has a molecular weight of 286.6453 kDa, with an isoelectric point of 7.27. Piezo1 has many transmembrane domains and post-translational modification sites. Piezo1 was expressed in intestinal epithelial tissue and ganglion cells. Expression of Piezo1 in the colon was much more abundant than that in the small intestine (P < 0.01).
CONCLUSION: The intestine is rich in Piezo1. Piezo1 may play a key role in regulating the function of the intestinal epithelium and enteric nervous system.
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73
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Xiao P, Ling H, Lan G, Liu J, Hu H, Yang R. Trefoil factors: Gastrointestinal-specific proteins associated with gastric cancer. Clin Chim Acta 2015; 450:127-34. [PMID: 26265233 DOI: 10.1016/j.cca.2015.08.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 08/07/2015] [Accepted: 08/07/2015] [Indexed: 12/11/2022]
Abstract
Trefoil factor family (TFF), composed of TFF1, TFF2, and TFF3, is a cluster of secreted peptides characterized by trefoil domain (s) and C-terminal dimerization domain. TFF1, a gastric tumor suppressor, is a single trefoil peptide originally detected in breast cancer cell lines but expressed mainly in the stomach; TFF2, a candidate of gastric cancer suppressor with two trefoil domains, is abundant in the stomach and duodenal Brunner's glands; and TFF3 is another single trefoil peptide expressed throughout the intestine which can promote the development of gastric carcinoma. According to multiple studies, TFFs play a regulatory function in the mammals' digestive system, namely in mucosal protection and epithelial cell reconstruction, tumor suppression or promotion, signal transduction and the regulation of proliferation and apoptosis. Action mechanisms of TFFs remain unresolved, but the recent demonstration of a GKN (gastrokine) 2-TFF1 heterodimer implicates structural and functional interplay with gastrokines. This review aims to encapsulate the structural and biological characteristics of TFF.
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Affiliation(s)
- Ping Xiao
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
| | - Hui Ling
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China.
| | - Gang Lan
- Key Laboratory for Atherosclerology of Hunan Province, Cardiovascular Research Institute, University of South China, Hengyang, Hunan 421001, PR China
| | - Jiao Liu
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
| | - Haobin Hu
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
| | - Ruirui Yang
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
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74
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Li C, Rezania S, Kammerer S, Sokolowski A, Devaney T, Gorischek A, Jahn S, Hackl H, Groschner K, Windpassinger C, Malle E, Bauernhofer T, Schreibmayer W. Piezo1 forms mechanosensitive ion channels in the human MCF-7 breast cancer cell line. Sci Rep 2015; 5:8364. [PMID: 25666479 PMCID: PMC4322926 DOI: 10.1038/srep08364] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 12/23/2014] [Indexed: 01/30/2023] Open
Abstract
Mechanical interaction between cells - specifically distortion of tensional homeostasis-emerged as an important aspect of breast cancer genesis and progression. We investigated the biophysical characteristics of mechanosensitive ion channels (MSCs) in the malignant MCF-7 breast cancer cell line. MSCs turned out to be the most abundant ion channel species and could be activated by negative pressure at the outer side of the cell membrane in a saturable manner. Assessing single channel conductance (GΛ) for different monovalent cations revealed an increase in the succession: Li(+) < Na(+) < K(+) ≈Rb(+) ≈ Cs(+). Divalent cations permeated also with the order: Ca(2+) < Ba(2+). Comparison of biophysical properties enabled us to identify MSCs in MCF-7 as ion channels formed by the Piezo1 protein. Using patch clamp technique no functional MSCs were observed in the benign MCF-10A mammary epithelial cell line. Blocking of MSCs by GsMTx-4 resulted in decreased motility of MCF-7, but not of MCF-10A cells, underscoring a possible role of Piezo1 in invasion and metastatic propagation. The role of Piezo1 in biology and progression of breast cancer is further substantiated by markedly reduced overall survival in patients with increased Piezo1 mRNA levels in the primary tumor.
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Affiliation(s)
- Chouyang Li
- Department of Biophysics, Medical University of Graz, Graz, Austria
| | - Simin Rezania
- Department of Biophysics, Medical University of Graz, Graz, Austria
| | - Sarah Kammerer
- Department of Biophysics, Medical University of Graz, Graz, Austria
| | - Armin Sokolowski
- Department of Biophysics, Medical University of Graz, Graz, Austria
| | - Trevor Devaney
- Department of Biophysics, Medical University of Graz, Graz, Austria
| | - Astrid Gorischek
- Department of Biophysics, Medical University of Graz, Graz, Austria
| | - Stephan Jahn
- Department of Pathology, Medical University of Graz, Graz, Austria
| | - Hubert Hackl
- Division of Bioinformatics, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Klaus Groschner
- Department of Biophysics, Medical University of Graz, Graz, Austria
| | | | - Ernst Malle
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Thomas Bauernhofer
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
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75
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Bagriantsev SN, Gracheva EO, Gallagher PG. Piezo proteins: regulators of mechanosensation and other cellular processes. J Biol Chem 2014; 289:31673-31681. [PMID: 25305018 DOI: 10.1074/jbc.r114.612697] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Piezo proteins have recently been identified as ion channels mediating mechanosensory transduction in mammalian cells. Characterization of these channels has yielded important insights into mechanisms of somatosensation, as well as other mechano-associated biologic processes such as sensing of shear stress, particularly in the vasculature, and regulation of urine flow and bladder distention. Other roles for Piezo proteins have emerged, some unexpected, including participation in cellular development, volume regulation, cellular migration, proliferation, and elongation. Mutations in human Piezo proteins have been associated with a variety of disorders including hereditary xerocytosis and several syndromes with muscular contracture as a prominent feature.
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Affiliation(s)
- Sviatoslav N Bagriantsev
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06520
| | - Elena O Gracheva
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06520; Yale Program in Cellular Neuroscience, Neurodegeneration and Repair, and Yale University School of Medicine, New Haven, Connecticut 06520
| | - Patrick G Gallagher
- Departments of Pediatrics, Pathology, and Genetics, Yale University School of Medicine, New Haven, Connecticut 06520.
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76
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Piezo channels: from structure to function. Pflugers Arch 2014; 467:95-9. [DOI: 10.1007/s00424-014-1578-z] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 07/03/2014] [Accepted: 07/08/2014] [Indexed: 10/25/2022]
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