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Zong P, Li CX, Feng J, Cicchetti M, Yue L. TRP Channels in Stroke. Neurosci Bull 2024; 40:1141-1159. [PMID: 37995056 PMCID: PMC11306852 DOI: 10.1007/s12264-023-01151-5] [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: 07/10/2023] [Accepted: 09/11/2023] [Indexed: 11/24/2023] Open
Abstract
Ischemic stroke is a devastating disease that affects millions of patients worldwide. Unfortunately, there are no effective medications for mitigating brain injury after ischemic stroke. TRP channels are evolutionally ancient biosensors that detect external stimuli as well as tissue or cellular injury. To date, many members of the TRP superfamily have been reported to contribute to ischemic brain injury, including the TRPC subfamily (1, 3, 4, 5, 6, 7), TRPV subfamily (1, 2, 3, 4) and TRPM subfamily (2, 4, 7). These TRP channels share structural similarities but have distinct channel functions and properties. Their activation during ischemic stroke can be beneficial, detrimental, or even both. In this review, we focus on discussing the interesting features of stroke-related TRP channels and summarizing the underlying cellular and molecular mechanisms responsible for their involvement in ischemic brain injury.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA.
- Institute for the Brain and Cognitive Sciences, University of Connecticut, 337 Mansfield Road, Unit 1272, Storrs, CT, 06269, USA.
| | - Cindy X Li
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
| | - Mara Cicchetti
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
- Department of Neuroscience, University of Pittsburgh, 4200 Fifth Ave, Pittsburgh, PA, 15260, USA
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA.
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2
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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.
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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.
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3
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Sun Z, Lv R, Zhao Y, Cai Z, Si X, Zhang Q, Liu X. Communications between Neutrophil-Endothelial Interaction in Immune Defense against Bacterial Infection. BIOLOGY 2024; 13:374. [PMID: 38927254 PMCID: PMC11200680 DOI: 10.3390/biology13060374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024]
Abstract
The endothelial barrier plays a critical role in immune defense against bacterial infection. Efficient interactions between neutrophils and endothelial cells facilitate the activation of both cell types. However, neutrophil activation can have dual effects, promoting bacterial clearance on one hand while triggering inflammation on the other. In this review, we provide a detailed overview of the cellular defense progression when neutrophils encounter bacteria, focusing specifically on neutrophil-endothelial interactions and endothelial activation or dysfunction. By elucidating the underlying mechanisms of inflammatory pathways, potential therapeutic targets for inflammation caused by endothelial dysfunction may be identified. Overall, our comprehensive understanding of neutrophil-endothelial interactions in modulating innate immunity provides deeper insights into therapeutic strategies for infectious diseases and further promotes the development of antibacterial and anti-inflammatory drugs.
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Affiliation(s)
- Zhigang Sun
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China; (Z.S.); (Y.Z.); (Z.C.); (X.S.)
| | - Ruoyi Lv
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China;
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Yanxin Zhao
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China; (Z.S.); (Y.Z.); (Z.C.); (X.S.)
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Ziwen Cai
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China; (Z.S.); (Y.Z.); (Z.C.); (X.S.)
| | - Xiaohui Si
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China; (Z.S.); (Y.Z.); (Z.C.); (X.S.)
| | - Qian Zhang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China; (Z.S.); (Y.Z.); (Z.C.); (X.S.)
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China;
| | - Xiaoye Liu
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China; (Z.S.); (Y.Z.); (Z.C.); (X.S.)
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China;
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
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4
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Ta HQ, Kuppusamy M, Sonkusare SK, Roeser ME, Laubach VE. The endothelium: gatekeeper to lung ischemia-reperfusion injury. Respir Res 2024; 25:172. [PMID: 38637760 PMCID: PMC11027545 DOI: 10.1186/s12931-024-02776-4] [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: 02/09/2024] [Accepted: 03/14/2024] [Indexed: 04/20/2024] Open
Abstract
The success of lung transplantation is limited by the high rate of primary graft dysfunction due to ischemia-reperfusion injury (IRI). Lung IRI is characterized by a robust inflammatory response, lung dysfunction, endothelial barrier disruption, oxidative stress, vascular permeability, edema, and neutrophil infiltration. These events are dependent on the health of the endothelium, which is a primary target of IRI that results in pulmonary endothelial barrier dysfunction. Over the past 10 years, research has focused more on the endothelium, which is beginning to unravel the multi-factorial pathogenesis and immunologic mechanisms underlying IRI. Many important proteins, receptors, and signaling pathways that are involved in the pathogenesis of endothelial dysfunction after IR are starting to be identified and targeted as prospective therapies for lung IRI. In this review, we highlight the more significant mediators of IRI-induced endothelial dysfunction discovered over the past decade including the extracellular glycocalyx, endothelial ion channels, purinergic receptors, kinases, and integrins. While there are no definitive clinical therapies currently available to prevent lung IRI, we will discuss potential clinical strategies for targeting the endothelium for the treatment or prevention of IRI. The accruing evidence on the essential role the endothelium plays in lung IRI suggests that promising endothelial-directed treatments may be approaching the clinic soon. The application of therapies targeting the pulmonary endothelium may help to halt this rapid and potentially fatal injury.
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Affiliation(s)
- Huy Q Ta
- Department of Surgery, University of Virginia, P. O. Box 801359, Charlottesville, VA, 22908, USA
| | - Maniselvan Kuppusamy
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, 22908, USA
| | - Swapnil K Sonkusare
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, 22908, USA
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, 22908, USA
| | - Mark E Roeser
- Department of Surgery, University of Virginia, P. O. Box 801359, Charlottesville, VA, 22908, USA
| | - Victor E Laubach
- Department of Surgery, University of Virginia, P. O. Box 801359, Charlottesville, VA, 22908, USA.
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5
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Zong P, Feng J, Li CX, Jellison ER, Yue Z, Miller B, Yue L. Activation of endothelial TRPM2 exacerbates blood-brain barrier degradation in ischemic stroke. Cardiovasc Res 2024; 120:188-202. [PMID: 37595268 PMCID: PMC10936752 DOI: 10.1093/cvr/cvad126] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 03/23/2023] [Accepted: 05/23/2023] [Indexed: 08/20/2023] Open
Abstract
AIMS Damage of the blood-brain barrier (BBB) is a hallmark of brain injury during the early stages of ischemic stroke. The subsequent endothelial hyperpermeability drives the initial pathological changes and aggravates neuronal death. Transient receptor potential melastatin 2 (TRPM2) is a Ca2+-permeable nonselective cation channel activated by oxidative stress. However, whether TRPM2 is involved in BBB degradation during ischemic stroke remains unknown. We aimed to investigate the role of TRPM2 in BBB degradation during ischemic stroke and the underlying molecular mechanisms. METHODS AND RESULTS Specific deletion of Trpm2 in endothelial cells using Cdh5 Cre produces a potent protective effect against brain injury in mice subjected to middle cerebral artery occlusion (MCAO), which is characterized by reduced infarction size, mitigated plasma extravasation, suppressed immune cell invasion, and inhibited oxidative stress. In vitro experiments using cultured cerebral endothelial cells (CECs) demonstrated that either Trpm2 deletion or inhibition of TRPM2 activation attenuates oxidative stress, Ca2+ overload, and endothelial hyperpermeability induced by oxygen-glucose deprivation (OGD) and CD36 ligand thrombospondin-1 (TSP1). In transfected HEK293T cells, OGD and TSP1 activate TRPM2 in a CD36-dependent manner. Noticeably, in cultured CECs, deleting Trpm2 or inhibiting TRPM2 activation also suppresses the activation of CD36 and cellular dysfunction induced by OGD or TSP1. CONCLUSIONS In conclusion, our data reveal a novel molecular mechanism in which TRPM2 and CD36 promote the activation of each other, which exacerbates endothelial dysfunction during ischemic stroke. Our study suggests that TRPM2 in endothelial cells is a promising target for developing more effective and safer therapies for ischemic stroke.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
- Department of Neuroscience, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Cindy X Li
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Evan R Jellison
- Department of Immunology, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Zhichao Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
| | - Barbara Miller
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, USA
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
- Department of Neuroscience, University of Connecticut School of Medicine (UConn Health), 263 Farmington Ave, Farmington, CT 06030, USA
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6
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Yan Q, Gao C, Li M, Lan R, Wei S, Fan R, Cheng W. TRP Ion Channels in Immune Cells and Their Implications for Inflammation. Int J Mol Sci 2024; 25:2719. [PMID: 38473965 DOI: 10.3390/ijms25052719] [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: 01/24/2024] [Revised: 02/16/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
The transient receptor potential (TRP) ion channels act as cellular sensors and mediate a plethora of physiological processes, including somatosensation, proliferation, apoptosis, and metabolism. Under specific conditions, certain TRP channels are involved in inflammation and immune responses. Thus, focusing on the role of TRPs in immune system cells may contribute to resolving inflammation. In this review, we discuss the distribution of five subfamilies of mammalian TRP ion channels in immune system cells and how these ion channels function in inflammatory mechanisms. This review provides an overview of the current understanding of TRP ion channels in mediating inflammation and may offer potential avenues for therapeutic intervention.
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Affiliation(s)
- Qiyue Yan
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Chuanzhou Gao
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Mei Li
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Rui Lan
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Shaohan Wei
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Runsong Fan
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Wei Cheng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
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7
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Mukhopadhyay A, Tsukasaki Y, Chan WC, Le JP, Kwok ML, Zhou J, Natarajan V, Mostafazadeh N, Maienschein-Cline M, Papautsky I, Tiruppathi C, Peng Z, Rehman J, Ganesh B, Komarova Y, Malik AB. trans-Endothelial neutrophil migration activates bactericidal function via Piezo1 mechanosensing. Immunity 2024; 57:52-67.e10. [PMID: 38091995 PMCID: PMC10872880 DOI: 10.1016/j.immuni.2023.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/02/2023] [Accepted: 11/10/2023] [Indexed: 12/21/2023]
Abstract
The regulation of polymorphonuclear leukocyte (PMN) function by mechanical forces encountered during their migration across restrictive endothelial cell junctions is not well understood. Using genetic, imaging, microfluidic, and in vivo approaches, we demonstrated that the mechanosensor Piezo1 in PMN plasmalemma induced spike-like Ca2+ signals during trans-endothelial migration. Mechanosensing increased the bactericidal function of PMN entering tissue. Mice in which Piezo1 in PMNs was genetically deleted were defective in clearing bacteria, and their lungs were predisposed to severe infection. Adoptive transfer of Piezo1-activated PMNs into the lungs of Pseudomonas aeruginosa-infected mice or exposing PMNs to defined mechanical forces in microfluidic systems improved bacterial clearance phenotype of PMNs. Piezo1 transduced the mechanical signals activated during transmigration to upregulate nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4, crucial for the increased PMN bactericidal activity. Thus, Piezo1 mechanosensing of increased PMN tension, while traversing the narrow endothelial adherens junctions, is a central mechanism activating the host-defense function of transmigrating PMNs.
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Affiliation(s)
- Amitabha Mukhopadhyay
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Yoshikazu Tsukasaki
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Wan Ching Chan
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Jonathan P Le
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Man Long Kwok
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Jian Zhou
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Viswanathan Natarajan
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA; Department of Medicine, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Nima Mostafazadeh
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Mark Maienschein-Cline
- Research Informatics Core, Research Resources Center, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Ian Papautsky
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Chinnaswamy Tiruppathi
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Zhangli Peng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Jalees Rehman
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Balaji Ganesh
- Flow Cytometry Core, Research Resources Center, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Yulia Komarova
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA.
| | - Asrar B Malik
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA.
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8
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Chen Z, Cheng Z, Ding C, Cao T, Chen L, Wang H, Li J, Huang X. ROS-Activated TRPM2 Channel: Calcium Homeostasis in Cardiovascular/renal System and Speculation in Cardiorenal Syndrome. Cardiovasc Drugs Ther 2023:10.1007/s10557-023-07531-3. [PMID: 38108918 DOI: 10.1007/s10557-023-07531-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/20/2023] [Indexed: 12/19/2023]
Abstract
The transient receptor potential melastatin 2 (TRPM2) channel is a nonselective calcium channel that is sensitive to oxidative stress (OS), and is widely expressed in multiple organs, such as the heart, kidney, and brain, which is inextricably related to calcium dyshomeostasis and downstream pathological events. Due to the increasing global burden of kidney or cardiovascular diseases (CVDs), safe and efficient drugs specific to novel targets are imperatively needed. Notably, investigation of the possibility to regard the TRPM2 channel as a new therapeutic target in ROS-related CVDs or renal diseases is urgently required because the roles of the TRPM2 channel in heart or kidney diseases have not received enough attention and thus have not been fully elaborated. Therefore, we aimed to review the involvement of the TRPM2 channel in cardiovascular disorders related to kidney or typical renal diseases and attempted to speculate about TRPM2-mediated mechanisms of cardiorenal syndrome (CRS) to provide representative perspectives for future research about novel and effective therapeutic strategies.
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Affiliation(s)
- Zihan Chen
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- Queen Mary School, Medical Department, Nanchang University, Nanchang, China
| | - Zaihua Cheng
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Congcong Ding
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Tianyu Cao
- Biological anthropology, University of California, Santa Barbara, CA, USA
| | - Ling Chen
- Department of Cardiology, the First People's Hospital of Jiujiang, Jiujiang, China
| | - Hong Wang
- Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Junpei Li
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Xiao Huang
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, China.
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9
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Moccia F, Brunetti V, Soda T, Berra-Romani R, Scarpellino G. Cracking the Endothelial Calcium (Ca 2+) Code: A Matter of Timing and Spacing. Int J Mol Sci 2023; 24:16765. [PMID: 38069089 PMCID: PMC10706333 DOI: 10.3390/ijms242316765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/16/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
A monolayer of endothelial cells lines the innermost surface of all blood vessels, thereby coming into close contact with every region of the body and perceiving signals deriving from both the bloodstream and parenchymal tissues. An increase in intracellular Ca2+ concentration ([Ca2+]i) is the main mechanism whereby vascular endothelial cells integrate the information conveyed by local and circulating cues. Herein, we describe the dynamics and spatial distribution of endothelial Ca2+ signals to understand how an array of spatially restricted (at both the subcellular and cellular levels) Ca2+ signals is exploited by the vascular intima to fulfill this complex task. We then illustrate how local endothelial Ca2+ signals affect the most appropriate vascular function and are integrated to transmit this information to more distant sites to maintain cardiovascular homeostasis. Vasorelaxation and sprouting angiogenesis were selected as an example of functions that are finely tuned by the variable spatio-temporal profile endothelial Ca2+ signals. We further highlighted how distinct Ca2+ signatures regulate the different phases of vasculogenesis, i.e., proliferation and migration, in circulating endothelial precursors.
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Affiliation(s)
- Francesco Moccia
- Laboratory of General Physiology, Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (V.B.); (G.S.)
| | - Valentina Brunetti
- Laboratory of General Physiology, Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (V.B.); (G.S.)
| | - Teresa Soda
- Department of Health Sciences, University of Magna Graecia, 88100 Catanzaro, Italy;
| | - Roberto Berra-Romani
- Department of Biomedicine, School of Medicine, Benemérita Universidad Autónoma de Puebla, Puebla 72410, Mexico;
| | - Giorgia Scarpellino
- Laboratory of General Physiology, Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (V.B.); (G.S.)
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10
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Tiruppathi C, Wang DM, Ansari MO, Bano S, Tsukasaki Y, Mukhopadhyay A, Joshi JC, Loch C, Niessen HWM, Malik AB. Ubiquitin ligase CHFR mediated degradation of VE-cadherin through ubiquitylation disrupts endothelial adherens junctions. Nat Commun 2023; 14:6582. [PMID: 37852964 PMCID: PMC10584835 DOI: 10.1038/s41467-023-42225-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 10/04/2023] [Indexed: 10/20/2023] Open
Abstract
Vascular endothelial cadherin (VE-cadherin) expressed at endothelial adherens junctions (AJs) is vital for vascular integrity and endothelial homeostasis. Here we identify the requirement of the ubiquitin E3-ligase CHFR as a key mechanism of ubiquitylation-dependent degradation of VE-cadherin. CHFR was essential for disrupting the endothelium through control of the VE-cadherin protein expression at AJs. We observe augmented expression of VE-cadherin in endothelial cell (EC)-restricted Chfr knockout (ChfrΔEC) mice. We also observe abrogation of LPS-induced degradation of VE-cadherin in ChfrΔEC mice, suggesting the pathophysiological relevance of CHFR in regulating the endothelial junctional barrier in inflammation. Lung endothelial barrier breakdown, inflammatory neutrophil extravasation, and mortality induced by LPS were all suppressed in ChfrΔEC mice. We find that the transcription factor FoxO1 is a key upstream regulator of CHFR expression. These findings demonstrate the requisite role of the endothelial cell-expressed E3-ligase CHFR in regulating the expression of VE-cadherin, and thereby endothelial junctional barrier integrity.
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Affiliation(s)
- Chinnaswamy Tiruppathi
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA.
| | - Dong-Mei Wang
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Mohammad Owais Ansari
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Shabana Bano
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Yoshikazu Tsukasaki
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Amitabha Mukhopadhyay
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Jagdish C Joshi
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | | | - Hans W M Niessen
- Department of Pathology, VU University Medical Center, Amsterdam, the Netherlands
| | - Asrar B Malik
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA.
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11
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Maliougina M, El Hiani Y. TRPM2: bridging calcium and ROS signaling pathways-implications for human diseases. Front Physiol 2023; 14:1217828. [PMID: 37576339 PMCID: PMC10412822 DOI: 10.3389/fphys.2023.1217828] [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: 05/05/2023] [Accepted: 06/26/2023] [Indexed: 08/15/2023] Open
Abstract
TRPM2 is a versatile and essential signaling molecule that plays diverse roles in Ca2+ homeostasis and oxidative stress signaling, with implications in various diseases. Research evidence has shown that TRPM2 is a promising therapeutic target. However, the decision of whether to activate or inhibit TRPM2 function depends on the context and specific disease. A deeper understanding of the molecular mechanisms governing TRPM2 activation and regulation could pave the way for the development of innovative therapeutics targeting TRPM2 to treat a broad range of diseases. In this review, we examine the structural and biophysical details of TRPM2, its involvement in neurological and cardiovascular diseases, and its role in inflammation and immune system function. In addition, we provide a comprehensive overview of the current knowledge of TRPM2 signaling pathways in cancer, including its functions in bioenergetics, oxidant defense, autophagy, and response to anticancer drugs.
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Affiliation(s)
| | - Yassine El Hiani
- Department of Physiology and Biophysics, Dalhousie University Faculty of Medicine, Halifax, NS, Canada
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12
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Liu HW, Gong LN, Lai K, Yu XF, Liu ZQ, Li MX, Yin XL, Liang M, Shi HS, Jiang LH, Yang W, Shi HB, Wang LY, Yin SK. Bilirubin gates the TRPM2 channel as a direct agonist to exacerbate ischemic brain damage. Neuron 2023; 111:1609-1625.e6. [PMID: 36921602 DOI: 10.1016/j.neuron.2023.02.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 10/18/2022] [Accepted: 02/13/2023] [Indexed: 03/16/2023]
Abstract
Stroke prognosis is negatively associated with an elevation of serum bilirubin, but how bilirubin worsens outcomes remains mysterious. We report that post-, but not pre-, stroke bilirubin levels among inpatients scale with infarct volume. In mouse models, bilirubin increases neuronal excitability and ischemic infarct, whereas ischemic insults induce the release of endogenous bilirubin, all of which are attenuated by knockout of the TRPM2 channel or its antagonist A23. Independent of canonical TRPM2 intracellular agonists, bilirubin and its metabolic derivatives gate the channel opening, whereas A23 antagonizes it by binding to the same cavity. Knocking in a loss of binding point mutation for bilirubin, TRPM2-D1066A, effectively antagonizes ischemic neurotoxicity in mice. These findings suggest a vicious cycle of stroke injury in which initial ischemic insults trigger the release of endogenous bilirubin from injured cells, which potentially acts as a volume neurotransmitter to activate TRPM2 channels, aggravating Ca2+-dependent brain injury.
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Affiliation(s)
- Han-Wei Liu
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Li-Na Gong
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Ke Lai
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China; Program in Neuroscience and Mental Health, SickKids Research Institute, Toronto, ON M5G 1X8, Canada; Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Xia-Fei Yu
- Department of Biophysics, Institute of Neuroscience, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Zhen-Qi Liu
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China; Program in Neuroscience and Mental Health, SickKids Research Institute, Toronto, ON M5G 1X8, Canada; Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Ming-Xian Li
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Xin-Lu Yin
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China; Department of Head & Neck Surgery, Renji Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Min Liang
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China; Department of Otorhinolaryngology Head & Neck Surgery, Xinhua Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Hao-Song Shi
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Lin-Hua Jiang
- Department of Physiology and Pathophysiology, School of Basic Sciences, Xinxiang Medical University, Xinxiang, Henan Province 453003, China; School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Wei Yang
- Department of Biophysics, Institute of Neuroscience, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Hai-Bo Shi
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China.
| | - Lu-Yang Wang
- Program in Neuroscience and Mental Health, SickKids Research Institute, Toronto, ON M5G 1X8, Canada; Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Shan-Kai Yin
- Department of Otorhinolaryngology Head & Neck Surgery, Shanghai Sixth People's Hospital and Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China.
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13
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Mony MP, Harmon KA, Hess R, Dorafshar AH, Shafikhani SH. An Updated Review of Hypertrophic Scarring. Cells 2023; 12:cells12050678. [PMID: 36899815 PMCID: PMC10000648 DOI: 10.3390/cells12050678] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/01/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023] Open
Abstract
Hypertrophic scarring (HTS) is an aberrant form of wound healing that is associated with excessive deposition of extracellular matrix and connective tissue at the site of injury. In this review article, we provide an overview of normal (acute) wound healing phases (hemostasis, inflammation, proliferation, and remodeling). We next discuss the dysregulated and/or impaired mechanisms in wound healing phases that are associated with HTS development. We next discuss the animal models of HTS and their limitations, and review the current and emerging treatments of HTS.
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Affiliation(s)
- Manjula P. Mony
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Kelly A. Harmon
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Ryan Hess
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Amir H. Dorafshar
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Sasha H. Shafikhani
- Department of Medicine, Division of Hematology and Oncology and Cell Therapy, Rush University Medical Center, Chicago, IL 60612, USA
- Cancer Center, Rush University Medical Center, Chicago, IL 60612, USA
- Correspondence:
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Müller I, Alt P, Rajan S, Schaller L, Geiger F, Dietrich A. Transient Receptor Potential (TRP) Channels in Airway Toxicity and Disease: An Update. Cells 2022; 11:2907. [PMID: 36139480 PMCID: PMC9497104 DOI: 10.3390/cells11182907] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
Our respiratory system is exposed to toxicants and pathogens from both sides: the airways and the vasculature. While tracheal, bronchial and alveolar epithelial cells form a natural barrier in the airways, endothelial cells protect the lung from perfused toxic compounds, particulate matter and invading microorganism in the vascular system. Damages induce inflammation by our immune response and wound healing by (myo)fibroblast proliferation. Members of the transient receptor potential (TRP) superfamily of ion channel are expressed in many cells of the respiratory tract and serve multiple functions in physiology and pathophysiology. TRP expression patterns in non-neuronal cells with a focus on TRPA1, TRPC6, TRPM2, TRPM5, TRPM7, TRPV2, TRPV4 and TRPV6 channels are presented, and their roles in barrier function, immune regulation and phagocytosis are summarized. Moreover, TRP channels as future pharmacological targets in chronic obstructive pulmonary disease (COPD), asthma, cystic and pulmonary fibrosis as well as lung edema are discussed.
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Affiliation(s)
| | | | | | | | | | - Alexander Dietrich
- Walther-Straub-Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), LMU-Munich, Nussbaumstr. 26, 80336 Munich, Germany
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15
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Kuzmin DO, Manukovsky VA, Bagnenko SF, Reznik ON, Ananiev AN, Vorobyeva OA, Vorobyev SL, Gogolev DV, Daineko VS, Kutenkov AA, Chichagova NA, Uliankina IV. Use of polyclonal antibodies in brain-dead donors in kidney transplantation. RUSSIAN JOURNAL OF TRANSPLANTOLOGY AND ARTIFICIAL ORGANS 2022. [DOI: 10.15825/1995-1191-2022-4-124-134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective. The objective of this study is to develop a therapeutic strategy for protecting grafts in order to improve the efficiency of kidney transplantation (KT) using polyclonal antibodies (pAbs) through elimination of activated forms of neutrophils, chemo- and cytokines from the donor’s bloodstream, and a decrease in the level of expression of adhesion molecules on the renal vascular endothelium at the pre-transplant stage.Materials and methods. In 2017, we developed and for the first time applied a therapeutic strategy for ischemia-reperfusion injury (IRI) in a brain-dead donor (BDD). Given the limited time interval after brain death has been diagnosed, Timoglobulin (Sanofi Genzyme, France) was administered to the donor at a dose of 8 mg/kg intravenously for 6 hours. Before drug administration and immediately before the start of cold perfusion, a complete blood count and renal transplant biopsy were performed. The study group included 10 BDDs (mean age 39.3 ± 4.4 years) who received anti-thymocyte globulin (ATG). The comparison group included 10 BDDs (mean age 38.5 ± 4.3 years) who did not undergo the new strategy. Donor kidneys were transplanted to 40 recipients (average age 47.5 ± 4.3 years), who were also divided into 2 groups, depending on the graft received (with and without ATG). At the organ donation center, a biobank of specimens from donors of various categories, including those using the IRI therapeutic strategy and recipients for retrospective assessment of the effectiveness of pAbs, was formed.Results. Clinical blood test results show that in the ATG group, there was stable leukopenia (neutropenia and lymphopenia) of 1.46 ± 0.18x109/l. Fifteen (75%) recipients of kidneys obtained from donors with ATG had immediate graft function; in the control group – 10 (50%) recipients.Conclusion. Data obtained testify to the prospects of implementing the proposed strategy in clinical practice, which will improve the quality of the resulting grafts and their suitability for subsequent transplantation, prolong graft functioning due to elimination of leukocytes as a factor of IRI, prevention of early allograft nephropathy, increase in the donor pool by using expanded criteria donors (ECDs).
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Affiliation(s)
- D. O. Kuzmin
- St. Petersburg Research Institute of Emergency Medicine; Pavlov First St. Petersburg State Medical University
| | | | | | - O. N. Reznik
- St. Petersburg Research Institute of Emergency Medicine; Pavlov First St. Petersburg State Medical University; North-Western State Medical University
| | - A. N. Ananiev
- St. Petersburg Research Institute of Emergency Medicine; Pavlov First St. Petersburg State Medical University
| | | | | | - D. V. Gogolev
- St. Petersburg Research Institute of Emergency Medicine; Pavlov First St. Petersburg State Medical University
| | - V. S. Daineko
- St. Petersburg Research Institute of Emergency Medicine; North-Western State Medical University
| | - A. A. Kutenkov
- St. Petersburg Research Institute of Emergency Medicine; Pavlov First St. Petersburg State Medical University
| | - N. A. Chichagova
- St. Petersburg Research Institute of Emergency Medicine; Pavlov First St. Petersburg State Medical University
| | - I. V. Uliankina
- St. Petersburg Research Institute of Emergency Medicine; Pavlov First St. Petersburg State Medical University
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16
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ROS-activated CXCR2 + neutrophils recruited by CXCL1 delay denervated skeletal muscle atrophy and undergo P53-mediated apoptosis. EXPERIMENTAL & MOLECULAR MEDICINE 2022; 54:1011-1023. [PMID: 35864308 PMCID: PMC9356135 DOI: 10.1038/s12276-022-00805-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/15/2022] [Accepted: 04/06/2022] [Indexed: 11/17/2022]
Abstract
Neutrophils are the earliest master inflammatory regulator cells recruited to target tissues after direct infection or injury. Although inflammatory factors are present in muscle that has been indirectly disturbed by peripheral nerve injury, whether neutrophils are present and play a role in the associated inflammatory process remains unclear. Here, intravital imaging analysis using spinning-disk confocal intravital microscopy was employed to dynamically identify neutrophils in denervated muscle. Slice digital scanning and 3D-view reconstruction analyses demonstrated that neutrophils escape from vessels and migrate into denervated muscle tissue. Analyses using reactive oxygen species (ROS) inhibitors and flow cytometry demonstrated that enhanced ROS activate neutrophils after denervation. Transcriptome analysis revealed that the vast majority of neutrophils in denervated muscle were of the CXCR2 subtype and were recruited by CXCL1. Most of these cells gradually disappeared within 1 week via P53-mediated apoptosis. Experiments using specific blockers confirmed that neutrophils slow the process of denervated muscle atrophy. Collectively, these results indicate that activated neutrophils are recruited via chemotaxis to muscle tissue that has been indirectly damaged by denervation, where they function in delaying atrophy. Live animal imaging experiments reveal how rapid recruitment of a subset of immune cells helps prevent muscle wasting after peripheral nerve injury. Such injuries take considerable time to heal, and there are no therapies that reliably prevent wasting of muscle lacking nervous innervation. Researchers led by JunJian Jiang and Jianguang Xu at Fudan University, Shanghai, China, have used intravital microscopy to record the cellular and molecular events that follow nerve damage in live mice. They observed heightened production of chemicals that summon immune cells known as neutrophils to the site of the injury. Even though the surrounding muscle cells were initially undamaged in this animal model, the recruited neutrophils delayed subsequent muscle wasting. This neutrophil recruitment was transient, but therapies that elicit a more sustained response could provide durable protection against muscle wasting.
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17
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Ramkumar V, Sheth S, Dhukhwa A, Al Aameri R, Rybak L, Mukherjea D. Transient Receptor Potential Channels and Auditory Functions. Antioxid Redox Signal 2022; 36:1158-1170. [PMID: 34465184 PMCID: PMC9221156 DOI: 10.1089/ars.2021.0191] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance: Transient receptor potential (TRP) channels are cation-gated channels that serve as detectors of various sensory modalities, such as pain, heat, cold, and taste. These channels are expressed in the inner ear, suggesting that they could also contribute to the perception of sound. This review provides more details on the different types of TRP channels that have been identified in the cochlea to date, focusing on their cochlear distribution, regulation, and potential contributions to auditory functions. Recent Advances: To date, the effect of TRP channels on normal cochlear physiology in mammals is still unclear. These channels contribute, to a limited extent, to normal cochlear physiology such as the hair cell mechanoelectrical transduction channel and strial functions. More detailed information on a number of these channels in the cochlea awaits future studies. Several laboratories focusing on TRPV1 channels have shown that they are responsive to cochlear stressors, such as ototoxic drugs and noise, and regulate cytoprotective and/or cell death pathways. TRPV1 expression in the cochlea is under control of oxidative stress (produced primarily by NOX3 NADPH oxidase) as well as STAT1 and STAT3 transcription factors, which differentially modulate inflammatory and apoptotic signals in the cochlea. Inhibition of oxidative stress or inflammation reduces the expression of TRPV1 channels and protects against cochlear damage and hearing loss. Critical Issues: TRPV1 channels are activated by both capsaicin and cisplatin, which produce differential effects on the inner ear. How these differential actions are produced is yet to be determined. It is clear that TRPV1 is an essential component of cisplatin ototoxicity as knockdown of these channels protects against hearing loss. In contrast, activation of TRPV1 by capsaicin protected against subsequent hearing loss induced by cisplatin. The cellular targets that are influenced by these two drugs to account for their differential profiles need to be fully elucidated. Furthermore, the potential involvement of different TRP channels present in the cochlea in regulating cisplatin ototoxicity needs to be determined. Future Directions: TRPV1 has been shown to mediate the entry of aminoglycosides into the hair cells. Thus, novel otoprotective strategies could involve designing drugs to inhibit entry of aminoglycosides and possibly other ototoxins into cochlear hair cells. TRP channels, including TRPV1, are expressed on circulating and resident immune cells. These receptors modulate immune cell functions. However, whether they are activated by cochlear stressors to initiate cochlear inflammation and ototoxicity needs to be determined. A better understanding of the function and regulation of these TRP channels in the cochlea could enable development of novel treatments for treating hearing loss. Antioxid. Redox Signal. 36, 1158-1170.
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Affiliation(s)
- Vickram Ramkumar
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Sandeep Sheth
- Department of Pharmaceutical Sciences, Larkin University College of Pharmacy, Miami, Florida, USA
| | - Asmita Dhukhwa
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Raheem Al Aameri
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Leonard Rybak
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois, USA.,Department of Otolaryngology, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Debashree Mukherjea
- Department of Otolaryngology, Southern Illinois University School of Medicine, Springfield, Illinois, USA
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18
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Zhang Y, Ying F, Tian X, Lei Z, Li X, Lo CY, Li J, Jiang L, Yao X. TRPM2 Promotes Atherosclerotic Progression in a Mouse Model of Atherosclerosis. Cells 2022; 11:cells11091423. [PMID: 35563730 PMCID: PMC9103947 DOI: 10.3390/cells11091423] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/20/2022] [Indexed: 11/16/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory arterial disease characterized by build-up of atheromatous plaque, which narrows the lumen of arteries. Hypercholesterolemia and excessive oxidative stress in arterial walls are among the main causative factors of atherosclerosis. Transient receptor potential channel M2 (TRPM2) is a Ca2+-permeable cation channel activated by oxidative stress. However, the role of TRPM2 in atherosclerosis in animal models is not well studied. In the present study, with the use of adeno-associated virus (AAV)-PCSK9 and TRPM2 knockout (TRPM2−/−) mice, we determined the role of TRPM2 in hypercholesterolemia-induced atherosclerosis. Our results demonstrated that TRPM2 knockout reduced atherosclerotic plaque area in analysis of En face Oil Red O staining of both whole aortas and aortic-root thin sections. Furthermore, TRPM2 knockout reduced the expression of CD68, α-SMA, and PCNA in the plaque region, suggesting a role of TRPM2 in promoting macrophage infiltration and smooth-muscle cell migration into the lesion area. Moreover, TRPM2 knockout reduced the expression of ICAM-1, MCP-1, and TNFα and decreased the ROS level in the plaque region, suggesting a role of TRPM2 in enhancing monocyte adhesion and promoting vascular inflammation. In bone-marrow-derived macrophages and primary cultured arterial endothelial cells, TRPM2 knockout reduced the production of inflammatory cytokines/factors and decreased ROS production. In addition, a TRPM2 antagonist N-(p-amylcinnamoyl) anthranilic acid (ACA) was able to inhibit atherosclerotic development in an ApoE−/− mouse model of atherosclerosis. Taken together, the findings of our study demonstrated that TRPM2 contributes to the progression of hypercholesterolemia-induced atherosclerosis. Mechanistically, TRPM2 channels may provide an essential link that can connect ROS to Ca2+ and inflammation, consequently promoting atherosclerotic progression.
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Affiliation(s)
- Yunting Zhang
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
| | - Fan Ying
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
| | - Xiaoyu Tian
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
| | - Zhenchuan Lei
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
| | - Xiao Li
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
| | - Chun-Yin Lo
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
| | - Jingxuan Li
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
| | - Liwen Jiang
- Centre for Cell and Developmental Biology, State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China;
| | - Xiaoqiang Yao
- School of Biomedical Sciences, Heart and Vascular Institute, Li Ka Shing Institute of Health Science, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (Y.Z.); (F.Y.); (X.T.); (Z.L.); (X.L.); (C.-Y.L.); (J.L.)
- Centre for Cell and Developmental Biology, State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China;
- Correspondence: ; Tel.: +852-3943-6877
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19
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Wang DM, Soni D, Regmi SC, Vogel SM, Tiruppathi C. TAK1 is essential for endothelial barrier maintenance and repair after lung vascular injury. Mol Biol Cell 2022; 33:ar65. [PMID: 35324316 PMCID: PMC9561857 DOI: 10.1091/mbc.e21-11-0563] [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] [Indexed: 12/02/2022] Open
Abstract
TGF–β-activated kinase 1 (TAK1) plays crucial roles in innate and adaptive immune responses and is required for embryonic vascular development. However, TAK1’s role in regulating vascular barrier integrity is not well defined. Here we show that endothelial TAK1 kinase function is required to maintain and repair the injured lung endothelial barrier. We observed that inhibition of TAK1 with 5Z-7-oxozeaenol markedly reduced expression of β-catenin (β-cat) and VE-cadherin at endothelial adherens junctions and augmented protease-activated receptor-1 (PAR-1)- or toll-like receptor-4 (TLR-4)-induced increases in lung vascular permeability. In inducible endothelial cell (EC)-restricted TAK1 knockout (TAK1i∆EC) mice, we observed that the lung endothelial barrier was compromised and in addition, TAK1i∆EC mice exhibited heightened sensitivity to septic shock. Consistent with these findings, we observed dramatically reduced β-cat expression in lung ECs of TAK1i∆EC mice. Further, either inhibition or knockdown of TAK1 blocked PAR-1- or TLR-4-induced inactivation of glycogen synthase kinase 3β (GSK3β), which in turn increased phosphorylation, ubiquitylation, and degradation of β-cat in ECs to destabilize the endothelial barrier. Importantly, we showed that TAK1 inactivates GSK3β through AKT activation in ECs. Thus our findings in this study point to the potential of targeting the TAK1-AKT-GSK3β axis as a therapeutic approach to treat uncontrolled lung vascular leak during sepsis.
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Affiliation(s)
- Dong-Mei Wang
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Dheeraj Soni
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Sushil C Regmi
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Stephen M Vogel
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Chinnaswamy Tiruppathi
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
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20
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Zong P, Lin Q, Feng J, Yue L. A Systemic Review of the Integral Role of TRPM2 in Ischemic Stroke: From Upstream Risk Factors to Ultimate Neuronal Death. Cells 2022; 11:491. [PMID: 35159300 PMCID: PMC8834171 DOI: 10.3390/cells11030491] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/26/2022] [Accepted: 01/29/2022] [Indexed: 02/04/2023] Open
Abstract
Ischemic stroke causes a heavy health burden worldwide, with over 10 million new cases every year. Despite the high prevalence and mortality rate of ischemic stroke, the underlying molecular mechanisms for the common etiological factors of ischemic stroke and ischemic stroke itself remain unclear, which results in insufficient preventive strategies and ineffective treatments for this devastating disease. In this review, we demonstrate that transient receptor potential cation channel, subfamily M, member 2 (TRPM2), a non-selective ion channel activated by oxidative stress, is actively involved in all the important steps in the etiology and pathology of ischemic stroke. TRPM2 could be a promising target in screening more effective prophylactic strategies and therapeutic medications for ischemic stroke.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConnHealth), Farmington, CT 06030, USA; (P.Z.); (J.F.)
| | - Qiaoshan Lin
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269, USA;
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConnHealth), Farmington, CT 06030, USA; (P.Z.); (J.F.)
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, University of Connecticut School of Medicine (UConnHealth), Farmington, CT 06030, USA; (P.Z.); (J.F.)
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21
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Sun L, Zhang Z, Zhao H, Qiu M, Wen Y, Yao X, Tang WH. Identification of TRPM2 as a Marker Associated With Prognosis and Immune Infiltration in Kidney Renal Clear Cell Carcinoma. Front Mol Biosci 2022; 8:774905. [PMID: 35071322 PMCID: PMC8769242 DOI: 10.3389/fmolb.2021.774905] [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: 09/13/2021] [Accepted: 11/23/2021] [Indexed: 11/13/2022] Open
Abstract
TRPM2 (transient receptor potential melastatin-2), a Ca2+ permeable, non-selective cation channel, is highly expressed in cancers and regulates tumor cell migration, invasion, and proliferation. However, no study has yet demonstrated the association of TRPM2 with the prognosis of cancer patients or tumor immune infiltration, and the possibility and the clinical basis of TRPM2 as a prognostic marker in cancers are yet unknown. In the current study, we first explored the correlation between the mRNA level of TRPM2 and the prognosis of patients with different cancers across public databases. Subsequently, the Tumor Immune Estimation Resource (TIMER) platform and the TISIDB website were used to assess the correlation between TRPM2 and tumor immune cell infiltration level. We found that 1) the level of TRPM2 was significantly elevated in most tumor tissues relative to normal tissues; 2) TRPM2 upregulation was significantly associated with adverse clinical characteristics and poor survival of kidney renal clear cell carcinoma (KIRC) patients; 3) the level of TRPM2 was positively related to immune cell infiltration. Moreover, TRPM2 was closely correlated to the gene markers of diverse immune cells; 4) a high TRPM2 expression predicted worse prognosis in KIRC based on different enriched immune cell cohorts; and 5) TRPM2 was mainly implemented in the T-cell activation process indicated by Gene Ontology (GO) function and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. In conclusion, TRPM2 can serve as a marker to predict the prognosis and immune infiltration in KIRC through the regulation of T-cell activation. The current data may provide additional information for further studies surrounding the function of TRPM2 in KIRC.
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Affiliation(s)
- Lei Sun
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Zijun Zhang
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Hang Zhao
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Miaoyun Qiu
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Ying Wen
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Xiaoqiang Yao
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wai Ho Tang
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
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22
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NETosis in ischemic/reperfusion injuries: An organ-based review. Life Sci 2021; 290:120158. [PMID: 34822798 DOI: 10.1016/j.lfs.2021.120158] [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: 10/13/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 10/19/2022]
Abstract
Neutrophil extracellular trap (NETosis), the web-like structures induced by neutrophil death, is an important inflammatory mechanism of the immune system leading to reactive oxygen species production/coagulopathy, endothelial dysfunction, atherosclerosis, and ischemia. NETosis exerts its role through different mechanisms such as triggering Toll-like receptors, inflammatory cytokines, platelet aggregation, neutrophil activation/infiltration, and vascular impairment. NETosis plays a key role in the prognosis of coronary artery disease, ischemic injury of kidney, lung, gastrointestinal tract and skeletal muscles. In this review, we explored the molecular mechanisms involved in NETosis, and ischemic/reperfusion injuries in body organs.
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23
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Farahany J, Tsukasaki Y, Mukhopadhyay A, Mittal M, Nepal S, Tiruppathi C, Malik AB. CD38-Mediated Inhibition of Bruton's Tyrosine Kinase in Macrophages Prevents Endotoxemic Lung Injury. Am J Respir Cell Mol Biol 2021; 66:183-195. [PMID: 34706199 DOI: 10.1165/rcmb.2021-0272oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
TLR4 signaling via endotoxemia in macrophages promotes macrophage transition to the inflammatory phenotype through NLRP3 inflammasome activation. This transition event has the potential to trigger acute lung injury (ALI). However, relatively little is known about the regulation of NLRP3 and its role in the pathogenesis of ALI. Here we interrogated the signaling pathway activated by CD38, an ectoenzyme expressed in macrophages, in preventing ALI through suppressing NLRP3 activation. Wild type and Cd38 knockout (Cd38─/─) mice were used to assess inflammatory lung injury and isolated macrophages were used to delineate underlying TLR4 signaling pathway. We showed that CD38 suppressed TLR4 signaling in macrophages by inhibiting Bruton's tyrosine kinase (Btk) through the recruitment of protein tyrosine phosphatase SHP2 and resulting in the dephosphorylation of activated Btk. Cd38─/─ mice show enhanced lung PMN extravasation and severe lung injury. LPS- or polymicrobial sepsis-induced mortality in Cd38─/─ mice were markedly augmented compared with WT. CD38 in macrophages functioned by inhibiting Btk activation through activation of SHP2 and resulting dephosphorylation of Btk, and thereby preventing activation of downstream targets NF-ΚB and NLRP3. Cd38─/─ macrophages displayed markedly increased activation of Btk, NF-ΚB, and NLRP3 whereas in vivo administration of the Btk inhibitor ibrutinib (a FDA approved drug) prevented augmented TLR4-induced inflammatory lung injury seen in Cd38─/─ mice. Our findings together show that upregulation of CD38 activity and inhibition of Btk activation downstream of TLR4 activation as potential strategies to prevent endotoxemic ALI.
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Affiliation(s)
- Joseph Farahany
- University of Illinois At Chicago, Chicago, Illinois, United States
| | | | | | - Manish Mittal
- University of Illinois At Chicago, Chicago, Illinois, United States
| | - Saroj Nepal
- University of Illinois At Chicago, Chicago, Illinois, United States
| | | | - Asrar B Malik
- University of Illinois At Chicago, Chicago, Illinois, United States
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24
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Lai Y, Huang Y. Mechanisms of Mechanical Force Induced Pulmonary Vascular Endothelial Hyperpermeability. Front Physiol 2021; 12:714064. [PMID: 34671268 PMCID: PMC8521004 DOI: 10.3389/fphys.2021.714064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/30/2021] [Indexed: 12/27/2022] Open
Abstract
Mechanical ventilation is a supportive therapy for patients with acute respiratory distress syndrome (ARDS). However, it also inevitably produces or aggravates the original lung injury with pathophysiological changes of pulmonary edema caused by increased permeability of alveolar capillaries which composed of microvascular endothelium, alveolar epithelium, and basement membrane. Vascular endothelium forms a semi-selective barrier to regulate body fluid balance. Mechanical ventilation in critically ill patients produces a mechanical force on lung vascular endothelium when the endothelial barrier was destructed. This review aims to provide a comprehensive overview of molecular and signaling mechanisms underlying the endothelial barrier permeability in ventilator-induced lung jury (VILI).
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Affiliation(s)
- Yan Lai
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Critical Care Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yongbo Huang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Critical Care Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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25
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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.
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26
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Abstract
Despite the progress of cardiovascular medicine, ischemia-reperfusion injury can contribute to increased mortality and prolonged hospitalization after myocardial infarction. Ischemia-reperfusion injury pathophysiology encompasses many cells including cardiomyocytes, fibroblasts, mesenchymal stromal cells, vascular endothelial and smooth muscle cells, platelets, polymorphonuclear cells, macrophages, and T lymphocytes. However, specific mechanisms for all contributing cells and molecular pathways are still under investigation. What is definitely known is that endothelial dysfunction, immunity activation and inflammatory response are crucial events during ischemia-reperfusion injury while toll-like receptors, inflammasomes, reactive oxygen species, intracellular calcium overload and mitochondrial permeability transition pore opening consist of key molecular mediators. Indicatively, cardiac fibroblasts through inflammasome activation mediate the initial inflammatory response. Cardiac mesenchymal stromal cells can respond to myocardial injury by pro-inflammatory activation. Endothelial cell activation contributes to the impaired vasomotion, inflammation and thrombotic events and together with platelet activation leads to microcirculation dysfunction and polymorphonuclear cells recruitment promoting inflammation. Polymorphonuclear cells and monocytes/macrophages subsets are critically involved in the inflammation process by producing toxic proteolytic enzymes and reactive oxygen species. T cells subsets are also involved in several stages of ischemia-reperfusion injury. In this review, we summarize the specific contribution of each of the above cells and the related molecular pathways in the pathophysiology of ischemia-reperfusion injury.
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Affiliation(s)
| | | | - Dimitrios Stakos
- Cardiology Department, Democritus University of Thrace, Alexandroupolis, Greece
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27
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Patterson EK, Gillio-Meina C, Martin CM, Fraser DD, Van Nynatten LR, Slessarev M, Cepinskas G. Proteinase 3 contributes to endothelial dysfunction in an experimental model of sepsis. Exp Biol Med (Maywood) 2021; 246:2338-2345. [PMID: 34292081 DOI: 10.1177/15353702211029284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In sepsis-induced inflammation, polymorphonuclear neutrophils (PMNs) contribute to vascular dysfunction. The serine proteases proteinase 3 (PR3) and human leukocyte elastase (HLE) are abundant in PMNs and are released upon degranulation. While HLE's role in inflammation-induced endothelial dysfunction is well studied, PR3's role is largely uninvestigated. We hypothesized that PR3, similarly to HLE, contributes to vascular barrier dysfunction in sepsis. Plasma PR3 and HLE concentrations and their leukocyte mRNA levels were measured by ELISA and qPCR, respectively, in sepsis patients and controls. Exogenous PR3 or HLE was applied to human umbilical vein endothelial cells (HUVECs) and HUVEC dysfunction was assessed by FITC-dextran permeability and electrical resistance. Both PR3 and HLE protein and mRNA levels were significantly increased in sepsis patients (P < 0.0001 and P < 0.05, respectively). Additionally, each enzyme independently increased HUVEC monolayer FITC-dextran permeability (P < 0.01), and decreased electrical resistance in a time- and dose-dependent manner (P < 0.001), an effect that could be ameliorated by novel treatment with carbon monoxide-releasing molecule 3 (CORM-3). The serine protease PR3, in addition to HLE, lead to vascular dysfunction and increased endothelial permeability, a hallmark pathological consequence of sepsis-induced inflammation. CORMs may offer a new strategy to reduce serine protease-induced vascular dysfunction.
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Affiliation(s)
- Eric K Patterson
- Centre for Critical Illness Research, 151158Lawson Health Research Institute, Lawson Health Research Institute, London, N6A 5W9, Canada
| | - Carolina Gillio-Meina
- Children's Health Research Institute and Translational Research Centre, Lawson Health Research Institute, London, N6A 5W9, Canada
| | - Claudio M Martin
- Centre for Critical Illness Research, 151158Lawson Health Research Institute, Lawson Health Research Institute, London, N6A 5W9, Canada.,Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, N6A 5C1, Canada
| | - Douglas D Fraser
- Centre for Critical Illness Research, 151158Lawson Health Research Institute, Lawson Health Research Institute, London, N6A 5W9, Canada.,Children's Health Research Institute and Translational Research Centre, Lawson Health Research Institute, London, N6A 5W9, Canada.,Department of Paediatrics, Schulich School of Medicine and Dentistry, Western University, London, N6A 5C1, Canada
| | - Logan R Van Nynatten
- Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, N6A 5C1, Canada
| | - Marat Slessarev
- Centre for Critical Illness Research, 151158Lawson Health Research Institute, Lawson Health Research Institute, London, N6A 5W9, Canada.,Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, N6A 5C1, Canada
| | - Gediminas Cepinskas
- Centre for Critical Illness Research, 151158Lawson Health Research Institute, Lawson Health Research Institute, London, N6A 5W9, Canada.,Department of Medical Biophysics, Western University, London, N6A 5C1, Canada
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28
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The Role of TRPM2 in Endothelial Function and Dysfunction. Int J Mol Sci 2021; 22:ijms22147635. [PMID: 34299254 PMCID: PMC8307439 DOI: 10.3390/ijms22147635] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 01/16/2023] Open
Abstract
The transient receptor potential (TRP) melastatin-like subfamily member 2 (TRPM2) is a non-selective calcium-permeable cation channel. It is expressed by many mammalian tissues, including bone marrow, spleen, lungs, heart, liver, neutrophils, and endothelial cells. The best-known mechanism of TRPM2 activation is related to the binding of ADP-ribose to the nudix-box sequence motif (NUDT9-H) in the C-terminal domain of the channel. In cells, the production of ADP-ribose is a result of increased oxidative stress. In the context of endothelial function, TRPM2-dependent calcium influx seems to be particularly interesting as it participates in the regulation of barrier function, cell death, cell migration, and angiogenesis. Any impairments of these functions may result in endothelial dysfunction observed in such conditions as atherosclerosis or hypertension. Thus, TRPM2 seems to be an attractive therapeutic target for the conditions connected with the increased production of reactive oxygen species. However, before the application of TRPM2 inhibitors will be possible, some issues need to be resolved. The main issues are the lack of specificity, poor membrane permeabilization, and low stability in in vivo conditions. The article aims to summarize the latest findings on a role of TRPM2 in endothelial cells. We also show some future perspectives for the application of TRPM2 inhibitors in cardiovascular system diseases.
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29
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Ding R, Yin YL, Jiang LH. Reactive Oxygen Species-Induced TRPM2-Mediated Ca 2+ Signalling in Endothelial Cells. Antioxidants (Basel) 2021; 10:antiox10050718. [PMID: 34063677 PMCID: PMC8147627 DOI: 10.3390/antiox10050718] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/21/2021] [Accepted: 04/28/2021] [Indexed: 02/07/2023] Open
Abstract
Endothelial cells form the innermost layer of blood vessels with a fundamental role as the physical barrier. While regulation of endothelial cell function by reactive oxygen species (ROS) is critical in physiological processes such as angiogenesis, endothelial function is a major target for interruption by oxidative stress resulting from generation of high levels of ROS in endothelial cells by various pathological factors and also release of ROS by neutrophils. TRPM2 is a ROS-sensitive Ca2+-permeable channel expressed in endothelial cells of various vascular beds. In this review, we provide an overview of the TRPM2 channel and its role in mediating ROS-induced Ca2+ signaling in endothelial cells. We discuss the TRPM2-mediated Ca2+ signaling in vascular endothelial growth factor-induced angiogenesis and in post-ischemic neovascularization. In particular, we examine the accumulative evidence that supports the role of TRPM2-mediated Ca2+ signaling in endothelial cell dysfunction caused by various oxidative stress-inducing factors that are associated with tissue inflammation, obesity and diabetes, as well as air pollution. These findings provide new, mechanistic insights into ROS-mediated regulation of endothelial cells in physiology and diseases.
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Affiliation(s)
- Ran Ding
- Department of Physiology and Pathophysiology, Sino-UK Joint Laboratory of Brain Function and Injury of Henan Province, Xinxiang Medical University, Xinxiang 453003, China; (R.D.); (Y.-L.Y.)
| | - Ya-Ling Yin
- Department of Physiology and Pathophysiology, Sino-UK Joint Laboratory of Brain Function and Injury of Henan Province, Xinxiang Medical University, Xinxiang 453003, China; (R.D.); (Y.-L.Y.)
| | - Lin-Hua Jiang
- Department of Physiology and Pathophysiology, Sino-UK Joint Laboratory of Brain Function and Injury of Henan Province, Xinxiang Medical University, Xinxiang 453003, China; (R.D.); (Y.-L.Y.)
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
- Correspondence: ; Tel.: +44-113-3434-231
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30
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Arif N, Zinnhardt M, Nyamay’Antu A, Teber D, Brückner R, Schaefer K, Li Y, Trappmann B, Grashoff C, Vestweber D. PECAM-1 supports leukocyte diapedesis by tension-dependent dephosphorylation of VE-cadherin. EMBO J 2021; 40:e106113. [PMID: 33604918 PMCID: PMC8090850 DOI: 10.15252/embj.2020106113] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 01/15/2021] [Accepted: 01/27/2021] [Indexed: 01/21/2023] Open
Abstract
Leukocyte extravasation is an essential step during the immune response and requires the destabilization of endothelial junctions. We have shown previously that this process depends in vivo on the dephosphorylation of VE-cadherin-Y731. Here, we reveal the underlying mechanism. Leukocyte-induced stimulation of PECAM-1 triggers dissociation of the phosphatase SHP2 which then directly targets VE-cadherin-Y731. The binding site of PECAM-1 for SHP2 is needed for VE-cadherin dephosphorylation and subsequent endocytosis. Importantly, the contribution of PECAM-1 to leukocyte diapedesis in vitro and in vivo was strictly dependent on the presence of Y731 of VE-cadherin. In addition to SHP2, dephosphorylation of Y731 required Ca2+ -signaling, non-muscle myosin II activation, and endothelial cell tension. Since we found that β-catenin/plakoglobin mask VE-cadherin-Y731 and leukocyte docking to endothelial cells exert force on the VE-cadherin-catenin complex, we propose that leukocytes destabilize junctions by PECAM-1-SHP2-triggered dephosphorylation of VE-cadherin-Y731 which becomes accessible by actomyosin-mediated mechanical force exerted on the VE-cadherin-catenin complex.
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Affiliation(s)
- Nida Arif
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | - Maren Zinnhardt
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | | | - Denise Teber
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | - Randy Brückner
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | | | - Yu‐Tung Li
- Max Planck Institute for Molecular BiomedicineMünsterGermany
| | | | - Carsten Grashoff
- Institute for Molecular Cell BiologyUniversity of MünsterMünsterGermany
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31
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Cross-Talk among Polymorphonuclear Neutrophils, Immune, and Non-Immune Cells via Released Cytokines, Granule Proteins, Microvesicles, and Neutrophil Extracellular Trap Formation: A Novel Concept of Biology and Pathobiology for Neutrophils. Int J Mol Sci 2021; 22:ijms22063119. [PMID: 33803773 PMCID: PMC8003289 DOI: 10.3390/ijms22063119] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/13/2021] [Accepted: 03/16/2021] [Indexed: 12/14/2022] Open
Abstract
Polymorphonuclear neutrophils (PMNs) are traditionally regarded as professional phagocytic and acute inflammatory cells that engulf the microbial pathogens. However, accumulating data have suggested that PMNs are multi-potential cells exhibiting many important biological functions in addition to phagocytosis. These newly found novel activities of PMN include production of different kinds of cytokines/chemokines/growth factors, release of neutrophil extracellular traps (NET)/ectosomes/exosomes and trogocytosis (membrane exchange) with neighboring cells for modulating innate, and adaptive immune responses. Besides, PMNs exhibit potential heterogeneity and plasticity in involving antibody-dependent cellular cytotoxicity (ADCC), cancer immunity, autoimmunity, inflammatory rheumatic diseases, and cardiovascular diseases. Interestingly, PMNs may also play a role in ameliorating inflammatory reaction and wound healing by a subset of PMN myeloid-derived suppressor cells (PMN-MDSC). Furthermore, PMNs can interact with other non-immune cells including platelets, epithelial and endothelial cells to link hemostasis, mucosal inflammation, and atherogenesis. The release of low-density granulocytes (LDG) from bone marrow initiates systemic autoimmune reaction in systemic lupus erythematosus (SLE). In clinical application, identification of certain PMN phenotypes may become prognostic factors for severe traumatic patients. In the present review, we will discuss these newly discovered biological and pathobiological functions of the PMNs.
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32
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Huang J, Zhang R, Wang S, Zhang D, Leung CK, Yang G, Li Y, Liu L, Xu Y, Lin S, Wang C, Zeng X, Li J. Methamphetamine and HIV-Tat Protein Synergistically Induce Oxidative Stress and Blood-Brain Barrier Damage via Transient Receptor Potential Melastatin 2 Channel. Front Pharmacol 2021; 12:619436. [PMID: 33815104 PMCID: PMC8010131 DOI: 10.3389/fphar.2021.619436] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/25/2021] [Indexed: 12/20/2022] Open
Abstract
Synergistic impairment of the blood-brain barrier (BBB) induced by methamphetamine (METH) and HIV-Tat protein increases the risk of HIV-associated neurocognitive disorders (HAND) in HIV-positive METH abusers. Studies have shown that oxidative stress plays a vital role in METH- and HIV-Tat-induced damage to the BBB but have not clarified the mechanism. This study uses the human brain microvascular endothelial cell line hCMEC/D3 and tree shrews to investigate whether the transient receptor potential melastatin 2 (TRPM2) channel, a cellular effector of the oxidative stress, might regulate synergistic damage to the BBB caused by METH and HIV-Tat. We showed that METH and HIV-Tat damaged the BBB in vitro, producing abnormal cell morphology, increased apoptosis, reduced protein expression of the tight junctions (TJ) including Junctional adhesion molecule A (JAMA) and Occludin, and a junctional associated protein Zonula occludens 1 (ZO1), and increased the flux of sodium fluorescein (NaF) across the hCMEC/D3 cells monolayer. METH and HIV-Tat co-induced the oxidative stress response, reducing catalase (CAT), glutathione peroxidase (GSH-PX), and superoxide dismutase (SOD) activity, as well as increased reactive oxygen species (ROS) and malonaldehyde (MDA) level. Pretreatment with n-acetylcysteine amide (NACA) alleviated the oxidative stress response and BBB damage characterized by improving cell morphology, viability, apoptosis levels, TJ protein expression levels, and NaF flux. METH and HIV-Tat co-induced the activation and high protein expression of the TRPM2 channel, however, early intervention using 8-Bromoadenosine-5′-O-diphosphoribose (8-Br-ADPR), an inhibitor of TPRM2 channel, or TRPM2 gene knockdown attenuated the BBB damage. Oxidative stress inhibition reduced the activation and high protein expression of the TRPM2 channel in the in vitro model, which in turn reduced the oxidative stress response. Further, 8-Br-ADPR attenuated the effects of METH and HIV-Tat on the BBB in tree shrews—namely, down-regulated TJ protein expression and increased BBB permeability to Evans blue (EB) and NaF. In summary, the TRPM2 channel can regulate METH- and HIV-Tat-induced oxidative stress and BBB injury, giving the channel potential for developing drug interventions to reduce BBB injury and neuropsychiatric symptoms in HIV-infected METH abusers.
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Affiliation(s)
- Jian Huang
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China.,School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Ruilin Zhang
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China.,School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Shangwen Wang
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China.,School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Dongxian Zhang
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China.,School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Chi-Kwan Leung
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,CUHK-SDU Joint Laboratory of Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Genmeng Yang
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Yuanyuan Li
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Liu Liu
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Yue Xu
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Shucheng Lin
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Chan Wang
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Xiaofeng Zeng
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China.,School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Juan Li
- NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China.,School of Basic Medicine, Kunming Medical University, Kunming, China
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33
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Deng S, Jiang Q, Lu X, Zhang Y. Study on Damage Mechanism and Repair of Vascular Endothelial Cells Based on Ultrasound Technology. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6680356. [PMID: 33791374 PMCID: PMC7984879 DOI: 10.1155/2021/6680356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/07/2021] [Accepted: 03/03/2021] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To detect the endothelial function of external iliac artery in rats with different stages of atherosclerosis by high-resolution ultrasound, so as to provide experimental methodological basis for evaluating the function of vascular endothelial cells by ultrasound. METHODS The animals were randomly divided into the control group (n = 6) and the atherosclerosis model group (n = 15). The atherosclerosis group was further divided into 4-week group, 8-week group, and 12-week group, with 5 animals in each group. After separating and grinding rat spleen, the obtained cells were cultured by density gradient centrifugation. After the cells adhered, the morphology of the cells was observed under a microscope and identified by DiI-Ac-LDL and FITC-UEA-I double staining. The activities of LDH and SOD, the contents of MDA and GSH, and the contents of NO in plasma were detected by biochemical methods. RESULTS The protective effect of rosanilin on brain injury in rats with acute hypobaric hypoxia and its regulation on the expression of pAkt protein; ox-LDL inhibited the proliferation activity of EPCs in a concentration-dependent manner. The expression of KLF2 and S1PR1 in HAEC can be knocked down by small interfering RNA, and knocking down KLF2 can not only downregulate the expression of S1PR1 but also downregulate HAVEN. With the development of atherosclerosis, the endothelium-dependent relaxation function and endothelium-independent relaxation function of the control group and the atherosclerosis model at 4, 8, and 12 weeks were damaged in different degrees and gradually aggravated. CONCLUSION Atherosclerosis is a disease with both morphological and functional damage, and vascular endothelial function is damaged in the early stage with corresponding pathological changes. Ultrasound is an effective method to evaluate vascular endothelial function.
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Affiliation(s)
- Shuhao Deng
- Department of Ultrasound, Pudong New Area People's Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201299, China
| | - Quan Jiang
- Department of Ultrasound, Pudong New Area People's Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201299, China
| | - Xin Lu
- Department of Radiology, Pudong New Area People's Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201299, China
| | - Yuan Zhang
- Department of Ultrasound, Pudong New Area People's Hospital Affiliated to Shanghai University of Medicine & Health Sciences, 490 Chuanhuan South Road, Pudong New Area, Shanghai, China
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34
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Ca 2+ homeostasis in brain microvascular endothelial cells. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2021; 362:55-110. [PMID: 34253298 DOI: 10.1016/bs.ircmb.2021.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Blood brain barrier (BBB) is formed by the brain microvascular endothelial cells (BMVECs) lining the wall of brain capillaries. Its integrity is regulated by multiple mechanisms, including up/downregulation of tight junction proteins or adhesion molecules, altered Ca2+ homeostasis, remodeling of cytoskeleton, that are confined at the level of BMVECs. Beside the contribution of BMVECs to BBB permeability changes, other cells, such as pericytes, astrocytes, microglia, leukocytes or neurons, etc. are also exerting direct or indirect modulatory effects on BBB. Alterations in BBB integrity play a key role in multiple brain pathologies, including neurological (e.g. epilepsy) and neurodegenerative disorders (e.g. Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis etc.). In this review, the principal Ca2+ signaling pathways in brain microvascular endothelial cells are discussed and their contribution to BBB integrity is emphasized. Improving the knowledge of Ca2+ homeostasis alterations in BMVECa is fundamental to identify new possible drug targets that diminish/prevent BBB permeabilization in neurological and neurodegenerative disorders.
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35
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Malko P, Jiang LH. TRPM2 channel-mediated cell death: An important mechanism linking oxidative stress-inducing pathological factors to associated pathological conditions. Redox Biol 2020; 37:101755. [PMID: 33130440 PMCID: PMC7600390 DOI: 10.1016/j.redox.2020.101755] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/17/2020] [Accepted: 10/08/2020] [Indexed: 12/26/2022] Open
Abstract
Oxidative stress resulting from the accumulation of high levels of reactive oxygen species is a salient feature of, and a well-recognised pathological factor for, diverse pathologies. One common mechanism for oxidative stress damage is via the disruption of intracellular ion homeostasis to induce cell death. TRPM2 is a non-selective Ca2+-permeable cation channel with a wide distribution throughout the body and is highly sensitive to activation by oxidative stress. Recent studies have collected abundant evidence to show its important role in mediating cell death induced by miscellaneous oxidative stress-inducing pathological factors, both endogenous and exogenous, including ischemia/reperfusion and the neurotoxicants amyloid-β peptides and MPTP/MPP+ that cause neuronal demise in the brain, myocardial ischemia/reperfusion, proinflammatory mediators that disrupt endothelial function, diabetogenic agent streptozotocin and diabetes risk factor free fatty acids that induce loss of pancreatic β-cells, bile acids that damage pancreatic acinar cells, renal ischemia/reperfusion and albuminuria that are detrimental to kidney cells, acetaminophen that triggers hepatocyte death, and nanoparticles that injure pericytes. Studies have also shed light on the signalling mechanisms by which these pathological factors activate the TRPM2 channel to alter intracellular ion homeostasis leading to aberrant initiation of various cell death pathways. TRPM2-mediated cell death thus emerges as an important mechanism in the pathogenesis of conditions including ischemic stroke, neurodegenerative diseases, cardiovascular diseases, diabetes, pancreatitis, chronic kidney disease, liver damage and neurovascular injury. These findings raise the exciting perspective of targeting the TRPM2 channel as a novel therapeutic strategy to treat such oxidative stress-associated diseases.
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Affiliation(s)
- Philippa Malko
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, UK
| | - Lin-Hua Jiang
- Sino-UK Joint Laboratory of Brain Function and Injury of Henan Province and Department of Physiology and Pathophysiology, Xinxiang Medical University, PR China; School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, UK.
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36
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Liu X, Zhang H, He S, Mu X, Hu G, Dong H. Endothelial-Derived Interleukin-1α Activates Innate Immunity by Promoting the Bactericidal Activity of Transendothelial Neutrophils. Front Cell Dev Biol 2020; 8:590. [PMID: 32733891 PMCID: PMC7358461 DOI: 10.3389/fcell.2020.00590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/17/2020] [Indexed: 12/13/2022] Open
Abstract
Migration of neutrophils across endothelial barriers to capture and eliminate bacteria is served as the first line of innate immunity. Bacterial virulence factors damage endothelium to produce inflammatory cytokines interacts with neutrophils. However, the mechanisms that behind endothelial-neutrophil interaction impact on the bactericidal activity remain unclear. Therefore, we aimed to find the target proteins on endothelial cells that triggered the bactericidal activity of transendothelial neutrophils. Herein, we built the infected models on rats and endothelial-neutrophil co-cultural system (Transwell) and discovered that endothelial-derived IL-1α promoted the survival of rats under Escherichia coli infection and enhanced the bactericidal activity of transendothelial neutrophils in vivo and in vitro. Results further showed that IL-1α was inhibited by lipopolysaccharide (LPS) in the endothelial-neutrophil interaction. We found that LPS mainly damaged cell membrane and induced cell necrosis to interrupt neutrophil migration from endothelial barrier. Thus, we used the isobaric tags for relative and absolute quantification (iTRAQ) method to identify different proteins of endothelial cells. Results showed that IL-1α targeted cellular plasma membrane, endoplasmic reticulum and mitochondrial envelope and triggered eleven common proteins to persistently regulate. During the early phase, IL-1α triggered the upregulation of cell adhesion molecules (CAMs) to promote neutrophil adhesion, while oxidative phosphorylation was involved in long time regulation to induce transmigration of neutrophils against bacteria. Our results highlight the critical mechanism of endothelial-derived IL-1α on promoting bactericidal activity of transendothelial neutrophils and the findings of IL-1α triggered proteins provide the potentially important targets on the regulation of innate immunity.
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Affiliation(s)
- Xiaoye Liu
- Beijing Traditional Chinese Veterinary Engineering Center and Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Department of Mechanics and Engineering Science, College of Engineering, Academy for Advanced Interdisciplinary Studies, and Beijing Advanced Innovation Center for Engineering Science and Emerging Technology, College of Engineering, Peking University, Beijing, China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hui Zhang
- Beijing Traditional Chinese Veterinary Engineering Center and Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
| | - Shangwen He
- Beijing Traditional Chinese Veterinary Engineering Center and Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
| | - Xiang Mu
- Beijing Traditional Chinese Veterinary Engineering Center and Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
| | - Ge Hu
- Beijing Traditional Chinese Veterinary Engineering Center and Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
| | - Hong Dong
- Beijing Traditional Chinese Veterinary Engineering Center and Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
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37
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Shannon AH, Elder CT, Lu G, Su G, Mast A, Salmon MD, Montgomery WG, Spinosa MD, Upchurch GR, Sharma AK. Pharmacologic inhibition of transient receptor channel vanilloid 4 attenuates abdominal aortic aneurysm formation. FASEB J 2020; 34:9787-9801. [PMID: 32506673 DOI: 10.1096/fj.202000251r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/28/2020] [Accepted: 05/17/2020] [Indexed: 11/11/2022]
Abstract
Abdominal aortic aneurysm (AAA) formation is characterized by inflammation, leukocyte infiltration, and vascular remodeling. This study investigates the role of TRPV4 channels, which are transmembrane calcium channels that can regulate vascular tone, in modulating AAA formation. The elastase-treatment model of AAA in C57BL6 (WT) mice and Angiotensin II treatment model in ApoE-/- mice were used to confirm our hypotheses. The administration of a specific TRPV4 antagonist, GSK2193874, in elastase-treated WT mice and in AngII-treated ApoE-/- mice caused a significant attenuation of aortic diameter, decrease in pro-inflammatory cytokines (IL-1β, IL-6, IL-17, MCP-1, MIP-1α, MIP-2, RANTES, and TNF-α), inflammatory cell infiltration (CD3 + T cells, macrophages, and neutrophils), elastic fiber disruption, and an increase in smooth muscle cell α-actin expression compared to untreated mice. Similarly, elastase-treated TRPV4-/- mice had a significant decrease in AAA formation, aortic inflammation, and vascular remodeling compared to elastase-treated WT mice on Day 14. In vitro studies demonstrated that the inhibition of TRPV4 channels mitigates aortic smooth muscle cell-dependent inflammatory cytokine production as well as decreases neutrophil transmigration through aortic endothelial cells. Therefore, our results suggest that TRPV4 antagonism can attenuate aortic inflammation and remodeling via decreased smooth muscle cell activation and neutrophil transendothelial migration during AAA formation.
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Affiliation(s)
| | - Craig T Elder
- Department of Surgery, University of Florida, Gainesville, FL, USA
| | - Guanyi Lu
- Department of Surgery, University of Florida, Gainesville, FL, USA
| | - Gang Su
- Department of Surgery, University of Florida, Gainesville, FL, USA
| | - Alexis Mast
- Department of Surgery, University of Florida, Gainesville, FL, USA
| | - Morgan D Salmon
- Department of Surgery, University of Virginia, Charlottesville, VA, USA
| | | | - Michael D Spinosa
- Department of Surgery, University of Virginia, Charlottesville, VA, USA
| | | | - Ashish K Sharma
- Department of Surgery, University of Florida, Gainesville, FL, USA
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Wang X, Parapanov R, Debonneville A, Wang Y, Abdelnour-Berchtold E, Gonzalez M, Gronchi F, Perentes JY, Ris HB, Eckert P, Piquilloud L, Lugrin J, Letovanec I, Krueger T, Liaudet L. Treatment with 3-aminobenzamide during ex vivo lung perfusion of damaged rat lungs reduces graft injury and dysfunction after transplantation. Am J Transplant 2020; 20:967-976. [PMID: 31710417 DOI: 10.1111/ajt.15695] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 01/25/2023]
Abstract
Ex vivo lung perfusion (EVLP) with pharmacological reconditioning may increase donor lung utilization for transplantation (LTx). 3-Aminobenzamide (3-AB), an inhibitor of poly(ADP-ribose) polymerase (PARP), reduces ex vivo lung injury in rat lungs damaged by warm ischemia (WI). Here we determined the effects of 3-AB reconditioning on graft outcome after LTx. Three groups of donor lungs were studied: Control (Ctrl): 1 hour WI + 3 hours cold ischemia (CI) + LTx; EVLP: 1 hour WI + 3 hours EVLP + LTx; EVLP + 3-AB: 1 hour WI + 3 hours EVLP + 3-AB (1 mg. mL-1 ) + LTx. Two hours after LTx, we determined lung graft compliance, edema, histology, neutrophil counts in bronchoalveolar lavage (BAL), mRNA levels of adhesion molecules within the graft, as well as concentrations of interleukin-6 and 10 (IL-6, IL-10) in BAL and plasma. 3-AB reconditioning during EVLP improved compliance and reduced lung edema, neutrophil infiltration, and the expression of adhesion molecules within the transplanted lungs. 3-AB also attenuated the IL-6/IL-10 ratio in BAL and plasma, supporting an improved balance between pro- and anti-inflammatory mediators. Thus, 3-AB reconditioning during EVLP of rat lung grafts damaged by WI markedly reduces inflammation, edema, and physiological deterioration after LTx, supporting the use of PARP inhibitors for the rehabilitation of damaged lungs during EVLP.
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Affiliation(s)
- Xingyu Wang
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Roumen Parapanov
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland.,Service of Adult Intensive Care Medicine, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Anne Debonneville
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Yabo Wang
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Etienne Abdelnour-Berchtold
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Michel Gonzalez
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Fabrizio Gronchi
- Service of Anesthesiology, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Jean-Yannis Perentes
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Hans-Beat Ris
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Philippe Eckert
- Service of Adult Intensive Care Medicine, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Lise Piquilloud
- Service of Adult Intensive Care Medicine, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Jérôme Lugrin
- Service of Adult Intensive Care Medicine, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Igor Letovanec
- Faculty of Biology and Medicine, The University Institute of Pathology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Thorsten Krueger
- Service of Thoracic Surgery, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Lucas Liaudet
- Service of Adult Intensive Care Medicine, Faculty of Biology and Medicine, University Hospital of Lausanne, Lausanne, Switzerland
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39
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Chen Y, Mu J, Zhu M, Mukherjee A, Zhang H. Transient Receptor Potential Channels and Inflammatory Bowel Disease. Front Immunol 2020; 11:180. [PMID: 32153564 PMCID: PMC7044176 DOI: 10.3389/fimmu.2020.00180] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 01/23/2020] [Indexed: 02/05/2023] Open
Abstract
The transient receptor potential (TRP) cation channels are present in abundance across the gastrointestinal (GI) tract, serving as detectors for a variety of stimuli and secondary transducers for G-protein coupled receptors. The activation of TRP channels triggers neurogenic inflammation with related neuropeptides and initiates immune reactions by extra-neuronally regulating immune cells, contributing to the GI homeostasis. However, under pathological conditions, such as inflammatory bowel disease (IBD), TRP channels are involved in intestinal inflammation. An increasing number of human and animal studies have indicated that TRP channels are correlated to the visceral hypersensitivity (VHS) and immune pathogenesis in IBD, leading to an exacerbation or amelioration of the VHS or intestinal inflammation. Thus, TRP channels are a promising target for novel therapeutic methods for IBD. In this review, we comprehensively summarize the functions of TRP channels, especially their potential roles in immunity and IBD. Additionally, we discuss the contradictory findings of prior studies and offer new insights with regard to future research.
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Affiliation(s)
- Yiding Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Jingxi Mu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Min Zhu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China
| | | | - Hu Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China
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40
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Robledo-Avila FH, Ruiz-Rosado JDD, Brockman KL, Partida-Sánchez S. The TRPM2 Ion Channel Regulates Inflammatory Functions of Neutrophils During Listeria monocytogenes Infection. Front Immunol 2020; 11:97. [PMID: 32117251 PMCID: PMC7010865 DOI: 10.3389/fimmu.2020.00097] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/14/2020] [Indexed: 12/23/2022] Open
Abstract
During infection, phagocytic cells pursue homeostasis in the host via multiple mechanisms that control microbial invasion. Neutrophils respond to infection by exerting a variety of cellular processes, including chemotaxis, activation, phagocytosis, degranulation and the generation of reactive oxygen species (ROS). Calcium (Ca2+) signaling and the activation of specific Ca2+ channels are required for most antimicrobial effector functions of neutrophils. The transient receptor potential melastatin-2 (TRPM2) cation channel has been proposed to play important roles in modulating Ca2+ mobilization and oxidative stress in neutrophils. In the present study, we use a mouse model of Listeria monocytogenes infection to define the role of TRPM2 in the regulation of neutrophils' functions during infection. We show that the susceptibility of Trpm2−/− mice to L. monocytogenes infection is characterized by increased migration rates of neutrophils and monocytes to the liver and spleen in the first 24 h. During the acute phase of L. monocytogenes infection, Trpm2−/− mice developed septic shock, characterized by increased serum levels of TNF-α, IL-6, and IL-10. Furthermore, in vivo depletion of neutrophils demonstrated a critical role of these immune cells in regulating acute inflammation in Trpm2−/− infected mice. Gene expression and inflammatory cytokine analyses of infected tissues further confirmed the hyperinflammatory profile of Trpm2−/− neutrophils. Finally, the increased inflammatory properties of Trpm2−/− neutrophils correlated with the dysregulated cytoplasmic concentration of Ca2+ and potentiated membrane depolarization, in response to L. monocytogenes. In conclusion, our findings suggest that the TRPM2 channel plays critical functional roles in regulating the inflammatory properties of neutrophils and preventing tissue damage during Listeria infection.
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Affiliation(s)
- Frank H Robledo-Avila
- Center for Microbial Pathogenesis, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Juan de Dios Ruiz-Rosado
- Center for Microbial Pathogenesis, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Kenneth L Brockman
- Center for Microbial Pathogenesis, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, United States.,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Santiago Partida-Sánchez
- Center for Microbial Pathogenesis, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, United States.,Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, OH, United States
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41
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Lindemann O, Rossaint J, Najder K, Schimmelpfennig S, Hofschröer V, Wälte M, Fels B, Oberleithner H, Zarbock A, Schwab A. Intravascular adhesion and recruitment of neutrophils in response to CXCL1 depends on their TRPC6 channels. J Mol Med (Berl) 2020; 98:349-360. [PMID: 31950205 PMCID: PMC7080674 DOI: 10.1007/s00109-020-01872-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/21/2019] [Accepted: 01/03/2020] [Indexed: 02/07/2023]
Abstract
Abstract Here we report a novel role for TRPC6, a member of the transient receptor potential (TRPC) channel family, in the CXCL1-dependent recruitment of murine neutrophil granulocytes. Representing a central element of the innate immune system, neutrophils are recruited from the blood stream to a site of inflammation. The recruitment process follows a well-defined sequence of events including adhesion to the blood vessel walls, migration, and chemotaxis to reach the inflammatory focus. A common feature of the underlying signaling pathways is the utilization of Ca2+ ions as intracellular second messengers. However, the required Ca2+ influx channels are not yet fully characterized. We used WT and TRPC6−/− neutrophils for in vitro and TRPC6−/− chimeric mice (WT mice with WT or TRPC6−/− bone marrow cells) for in vivo studies. After renal ischemia and reperfusion injury, TRPC6−/− chimeric mice had an attenuated TRPC6−/− neutrophil recruitment and a better outcome as judged from the reduced increase in the plasma creatinine concentration. In the cremaster model CXCL1-induced neutrophil adhesion, arrest and transmigration were also decreased in chimeric mice with TRPC6−/− neutrophils. Using atomic force microscopy and microfluidics, we could attribute the recruitment defect of TRPC6−/− neutrophils to the impact of the channel on adhesion to endothelial cells. Mechanistically, TRPC6−/− neutrophils exhibited lower Ca2+ transients during the initial adhesion leading to diminished Rap1 and β2 integrin activation and thereby reduced ICAM-1 binding. In summary, our study reveals that TRPC6 channels in neutrophils are crucial signaling modules in their recruitment from the blood stream in response to CXCL1. Key point Neutrophil TRPC6 channels are crucial for CXCL1-triggered activation of integrins during the initial steps of neutrophil recruitment.
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Affiliation(s)
- Otto Lindemann
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany
| | - Jan Rossaint
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Karolina Najder
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany
| | | | - Verena Hofschröer
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany
| | - Mike Wälte
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany.,Institute of Cell Dynamics and Imaging, Westfälische Wilhelms-Universität, Münster, Germany
| | - Benedikt Fels
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany
| | - Hans Oberleithner
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany
| | - Alexander Zarbock
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Albrecht Schwab
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany.
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Sun L, Liu YL, Ye F, Xie JW, Zeng JW, Qin L, Xue J, Wang YT, Guo KM, Ma MM, Tang YB, Li XY, Gao M. Free fatty acid-induced H 2O 2 activates TRPM2 to aggravate endothelial insulin resistance via Ca 2+-dependent PERK/ATF4/TRB3 cascade in obese mice. Free Radic Biol Med 2019; 143:288-299. [PMID: 31445205 DOI: 10.1016/j.freeradbiomed.2019.08.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 08/16/2019] [Accepted: 08/19/2019] [Indexed: 01/12/2023]
Abstract
Transient Receptor Potential Melastatin-2 (TRPM2) is a nonselective cation channel mediating Ca2+ influx in response to oxidative stress. Given that insulin resistance-related endothelial dysfunction in obesity attributes to fatty-acid-induced reactive oxygen species (ROS) overproduction, in this study, we addressed the possible role of TRPM2 in obesity-related endothelial insulin resistance and the underlying mechanisms. Whole-cell patch clamp technique, intracellular Ca2+ concentration measurement, western blot, vasorelaxation assay, and high-fat diet (HFD)-induced obese model were employed to assess the relationship between TRPM2 and endothelial insulin response. We found that both the expression and activity of TRPM2 were higher in endothelial cells of obese mice. Palmitate rose a cationic current in endothelial cells which was inhibited or enlarged by TRPM2 knockdown or overexpression. Silencing of TRPM2 remarkably improved insulin-induced endothelial Akt activation, nitric oxide synthase (eNOS) phosphorylation and nitric oxide (NO) production, while TRPM2 overexpression resulted in the opposite effects. Furthermore, TRPM2-mediated Ca2+ entry, CaMKII activation and the following activation of PERK/ATF4/TRB3 cascade were involved in the mechanism of obesity or palmitate-induced endothelial insulin resistance. Notably, in vivo study, knockdown of TRPM2 with adeno-associated virus harboring short-hairpin RNA (shRNA) against TRPM2 alleviated endothelial insulin resistance and ameliorated endothelium-dependent vasodilatation in obese mice. Thus, these results suggest that TRPM2-activated Ca2+ signaling is necessary to induce insulin resistance-related endothelial dysfunction in obesity. Downregulation or pharmacological inhibition of TRPM2 channels may lead to the development of effective drugs for treatment of endothelial dysfunction associated with oxidative stress state.
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Affiliation(s)
- Lu Sun
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China; Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Yan-Li Liu
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Fang Ye
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Jing-Wen Xie
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Jia-Wei Zeng
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Li Qin
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Jing Xue
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Yi-Ting Wang
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Kai-Min Guo
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Ming-Ming Ma
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Yong-Bo Tang
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xiao-Yan Li
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China.
| | - Min Gao
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China.
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43
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Huang Y, Roth B, Lü W, Du J. Ligand recognition and gating mechanism through three ligand-binding sites of human TRPM2 channel. eLife 2019; 8:50175. [PMID: 31513012 PMCID: PMC6759353 DOI: 10.7554/elife.50175] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/11/2019] [Indexed: 12/17/2022] Open
Abstract
TRPM2 is critically involved in diverse physiological processes including core temperature sensing, apoptosis, and immune response. TRPM2’s activation by Ca2+ and ADP ribose (ADPR), an NAD+-metabolite produced under oxidative stress and neurodegenerative conditions, suggests a role in neurological disorders. We provide a central concept between triple-site ligand binding and the channel gating of human TRPM2. We show consecutive structural rearrangements and channel activation of TRPM2 induced by binding of ADPR in two indispensable locations, and the binding of Ca2+ in the transmembrane domain. The 8-Br-cADPR—an antagonist of cADPR—binds only to the MHR1/2 domain and inhibits TRPM2 by stabilizing the channel in an apo-like conformation. We conclude that MHR1/2 acts as a orthostatic ligand-binding site for TRPM2. The NUDT9-H domain binds to a second ADPR to assist channel activation in vertebrates, but not necessary in invertebrates. Our work provides insights into the gating mechanism of human TRPM2 and its pharmacology.
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Affiliation(s)
- Yihe Huang
- Van Andel Institute, Grand Rapids, United States
| | - Becca Roth
- Van Andel Institute, Grand Rapids, United States
| | - Wei Lü
- Van Andel Institute, Grand Rapids, United States
| | - Juan Du
- Van Andel Institute, Grand Rapids, United States
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44
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Kithcart AP, Libby P. Unfriendly Fire From Neutrophils Promiscuously Potentiates Cardiovascular Inflammation. Circ Res 2019; 121:1029-1031. [PMID: 29025754 DOI: 10.1161/circresaha.117.311867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Aaron P Kithcart
- From the Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Peter Libby
- From the Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
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Martinotti S, Laforenza U, Patrone M, Moccia F, Ranzato E. Honey-Mediated Wound Healing: H₂O₂ Entry through AQP3 Determines Extracellular Ca 2+ Influx. Int J Mol Sci 2019; 20:ijms20030764. [PMID: 30754672 PMCID: PMC6387258 DOI: 10.3390/ijms20030764] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/22/2019] [Accepted: 02/02/2019] [Indexed: 12/26/2022] Open
Abstract
Since Biblical times, honey has been utilized in “folk medicine”, and in recent decades the positive qualities of honey have been re-discovered and are gaining acceptance. Scientific literature states that honey has been successfully utilized on infections not responding to classic antiseptic and antibiotic therapy, because of its intrinsic H2O2 production. In our study, we demonstrated the involvement of H2O2 as a main mediator of honey regenerative effects on an immortalized human keratinocyte cell line. We observed that this extracellularly released H2O2 could pass across the plasma membrane through a specific aquaporin (i.e., AQP3). Once in the cytoplasm H2O2, in turn, induces the entry of extracellular Ca2+ through Melastatin Transient Receptor Potential 2 (TRPM2) and Orai1 channels. Honey-induced extracellular Ca2+ entry results in wound healing, which is consistent with the role played by Ca2+ signaling in tissue regeneration. This is the first report showing that honey exposure increases intracellular Ca2+ concentration ([Ca2+]i), due to H2O2 production and redox regulation of Ca2+-permeable ion channels, opening up a new horizon for the utilization of the honey as a beneficial tool.
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Affiliation(s)
- Simona Martinotti
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Viale Teresa Michel 11, 15121 Alessandria, Italy.
| | - Umberto Laforenza
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy.
| | - Mauro Patrone
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Viale Teresa Michel 11, 15121 Alessandria, Italy.
| | - Francesco Moccia
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy.
| | - Elia Ranzato
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Piazza Sant'Eusebio 5, 13100 Vercelli, Italy.
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Gershkovitz M, Fainsod-Levi T, Zelter T, Sionov RV, Granot Z. TRPM2 modulates neutrophil attraction to murine tumor cells by regulating CXCL2 expression. Cancer Immunol Immunother 2019; 68:33-43. [PMID: 30251149 PMCID: PMC11028074 DOI: 10.1007/s00262-018-2249-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 09/19/2018] [Indexed: 01/07/2023]
Abstract
In recent years, immune cells were shown to play critical roles in tumor growth and metastatic progression. In this context, neutrophils were shown to possess both pro- and anti-tumor properties. To exert their anti-tumor effect, neutrophils need to migrate towards, and form physical contact with tumor cells. Neutrophils secrete H2O2 in a contact-dependent mechanism, thereby inducing a lethal Ca2+ influx via the activation of the H2O2-dependent TRPM2 Ca2+ channel. Here, we explored the mechanism regulating neutrophil chemoattraction to tumor cells. Interestingly, we found that TRPM2 plays a role in this context as well, since it regulates the expression of potent neutrophil chemoattractants. Consequently, cells expressing reduced levels of TRPM2 are not approached by neutrophils. Together, these observations demonstrate how tumor cells expressing reduced levels of TRPM2 evade neutrophil cytotoxicity in two interrelated mechanisms-downregulation of neutrophil chemoattractants and blocking of the apoptotic Ca2+-dependent cascade. These observations demonstrate a critical role for TRPM2 in neutrophil-mediated immunosurveillance and identify cells expressing low levels of TRPM2, as a potential target for cancer therapy.
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Affiliation(s)
- Maya Gershkovitz
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel Canada, Hebrew University Medical School, Ein Kerem, 91120, Jerusalem, Israel
| | - Tanya Fainsod-Levi
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel Canada, Hebrew University Medical School, Ein Kerem, 91120, Jerusalem, Israel
| | - Tamir Zelter
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel Canada, Hebrew University Medical School, Ein Kerem, 91120, Jerusalem, Israel
| | - Ronit V Sionov
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel Canada, Hebrew University Medical School, Ein Kerem, 91120, Jerusalem, Israel
| | - Zvi Granot
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel Canada, Hebrew University Medical School, Ein Kerem, 91120, Jerusalem, Israel.
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47
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The TRPM2 channel nexus from oxidative damage to Alzheimer's pathologies: An emerging novel intervention target for age-related dementia. Ageing Res Rev 2018; 47:67-79. [PMID: 30009973 DOI: 10.1016/j.arr.2018.07.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/05/2018] [Accepted: 07/09/2018] [Indexed: 12/11/2022]
Abstract
Alzheimer's disease (AD), an age-related neurodegenerative condition, is the most common cause of dementia among the elder people, but currently there is no treatment. A number of putative pathogenic events, particularly amyloid β peptide (Aβ) accumulation, are believed to be early triggers that initiate AD. However, thus far targeting Aβ generation/aggregation as the mainstay strategy of drug development has not led to effective AD-modifying therapeutics. Oxidative damage is a conspicuous feature of AD, but this remains poorly defined phenomenon and mechanistically ill understood. The TRPM2 channel has emerged as a potentially ubiquitous molecular mechanism mediating oxidative damage and thus plays a vital role in the pathogenesis and progression of diverse neurodegenerative diseases. This article will review the emerging evidence from recent studies and propose a novel 'hypothesis' that multiple TRPM2-mediated cellular and molecular mechanisms cascade Aβ and/or oxidative damage to AD pathologies. The 'hypothesis' based on these new findings discusses the prospect of considering the TRPM2 channel as a novel therapeutic target for intervening AD and age-related dementia.
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48
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Simmons S, Erfinanda L, Bartz C, Kuebler WM. Novel mechanisms regulating endothelial barrier function in the pulmonary microcirculation. J Physiol 2018; 597:997-1021. [PMID: 30015354 DOI: 10.1113/jp276245] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 05/25/2018] [Indexed: 12/11/2022] Open
Abstract
The pulmonary epithelial and vascular endothelial cell layers provide two sequential physical and immunological barriers that together form a semi-permeable interface and prevent alveolar and interstitial oedema formation. In this review, we focus specifically on the continuous endothelium of the pulmonary microvascular bed that warrants strict control of the exchange of gases, fluid, solutes and circulating cells between the plasma and the interstitial space. The present review provides an overview of emerging molecular mechanisms that permit constant transcellular exchange between the vascular and interstitial compartment, and cause, prevent or reverse lung endothelial barrier failure under experimental conditions, yet with a clinical perspective. Based on recent findings and at times seemingly conflicting results we discuss emerging paradigms of permeability regulation by altered ion transport as well as shifts in the homeostasis of sphingolipids, angiopoietins and prostaglandins.
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Affiliation(s)
- Szandor Simmons
- Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Lasti Erfinanda
- Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Christoph Bartz
- Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Wolfgang M Kuebler
- Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada.,Departments of Surgery and Physiology, University of Toronto, Toronto, ON, Canada
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49
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Ramirez GA, Coletto LA, Sciorati C, Bozzolo EP, Manunta P, Rovere-Querini P, Manfredi AA. Ion Channels and Transporters in Inflammation: Special Focus on TRP Channels and TRPC6. Cells 2018; 7:E70. [PMID: 29973568 PMCID: PMC6070975 DOI: 10.3390/cells7070070] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 06/27/2018] [Accepted: 06/29/2018] [Indexed: 12/14/2022] Open
Abstract
Allergy and autoimmune diseases are characterised by a multifactorial pathogenic background. Several genes involved in the control of innate and adaptive immunity have been associated with diseases and variably combine with each other as well as with environmental factors and epigenetic processes to shape the characteristics of individual manifestations. Systemic or local perturbations in salt/water balance and in ion exchanges between the intra- and extracellular spaces or among tissues play a role. In this field, usually referred to as elementary immunology, novel evidence has been recently acquired on the role of members of the transient potential receptor (TRP) channel family in several cellular mechanisms of potential significance for the pathophysiology of the immune response. TRP canonical channel 6 (TRPC6) is emerging as a functional element for the control of calcium currents in immune-committed cells and target tissues. In fact, TRPC6 influences leukocytes’ tasks such as transendothelial migration, chemotaxis, phagocytosis and cytokine release. TRPC6 also modulates the sensitivity of immune cells to apoptosis and influences tissue susceptibility to ischemia-reperfusion injury and excitotoxicity. Here, we provide a view of the interactions between ion exchanges and inflammation with a focus on the pathogenesis of immune-mediated diseases and potential future therapeutic implications.
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Affiliation(s)
- Giuseppe A Ramirez
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Lavinia A Coletto
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Clara Sciorati
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Enrica P Bozzolo
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Paolo Manunta
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Nephrology, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Patrizia Rovere-Querini
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Angelo A Manfredi
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
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50
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Matsumoto K, Kawanaka H, Hori M, Kusamori K, Utsumi D, Tsukahara T, Amagase K, Horie S, Yamamoto A, Ozaki H, Mori Y, Kato S. Role of transient receptor potential melastatin 2 in surgical inflammation and dysmotility in a mouse model of postoperative ileus. Am J Physiol Gastrointest Liver Physiol 2018; 315:G104-G116. [PMID: 29565641 DOI: 10.1152/ajpgi.00305.2017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In this study, we investigated the role of transient receptor potential melastatin 2 (TRPM2), a nonselective cation channel abundantly expressed in inflammatory cells such as macrophages, in the development of postoperative ileus, a complication of abdominal surgery characterized by gastrointestinal dysmotility. In wild-type mice, we found that intestinal manipulation, a maneuver that elicits symptoms typical of postoperative ileus, delays the transit of fluorescein-labeled dextran, promotes the infiltration of CD68+ macrophages, Ly6B.2+ neutrophils, and MPO+ cells into intestinal muscles, boosts expression of IL-1β, IL-6, TNF-α, iNOS, and CXCL2 in intestinal muscles and peritoneal macrophages, enhances phosphorylation of ERK and p38 MAPK in intestinal muscles, and amplifies IL-1β, IL-6, TNF-α, iNOS, and CXCL2 expression in resident and thioglycolate-elicited peritoneal macrophages following exposure to lipopolysaccharide. Remarkably, TRPM2 deficiency completely blocks or diminishes these effects. Indeed, intestinal manipulation appears to activate TRPM2 in resident muscularis macrophages and elicits release of inflammatory cytokines and chemokines, which, in turn, promote infiltration of macrophages and neutrophils into the muscle, ultimately resulting in dysmotility. NEW & NOTEWORTHY Activation of transient receptor potential melastatin 2 (TRPM2) releases inflammatory cytokines and chemokines, which, in turn, promote the infiltration of inflammatory cells and macrophages into intestinal muscles, ultimately resulting in dysmotility. Thus TRPM2 is a promising target in treating dysmotility due to postoperative ileus, a complication of abdominal surgery.
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Affiliation(s)
- Kenjiro Matsumoto
- Division of Pathological Sciences, Department of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University , Kyoto , Japan
| | - Hiroki Kawanaka
- Division of Pathological Sciences, Department of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University , Kyoto , Japan
| | - Masatoshi Hori
- Department of Veterinary Pharmacology, Graduate School of Agriculture and Life Sciences, The University of Tokyo , Tokyo , Japan
| | - Kosuke Kusamori
- Division of Clinical Pharmaceutical Sciences, Department of Biopharmaceutics, Kyoto Pharmaceutical University , Kyoto , Japan
| | - Daichi Utsumi
- Division of Pathological Sciences, Department of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University , Kyoto , Japan
| | - Takuya Tsukahara
- Division of Pathological Sciences, Department of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University , Kyoto , Japan
| | - Kikuko Amagase
- Division of Pathological Sciences, Department of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University , Kyoto , Japan
| | - Syunji Horie
- Laboratory of Pharmacology, Faculty of Pharmaceutical Sciences, Josai International University , Chiba , Japan
| | - Akira Yamamoto
- Division of Clinical Pharmaceutical Sciences, Department of Biopharmaceutics, Kyoto Pharmaceutical University , Kyoto , Japan
| | - Hiroshi Ozaki
- Department of Veterinary Pharmacology, Graduate School of Agriculture and Life Sciences, The University of Tokyo , Tokyo , Japan
| | - Yasuo Mori
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University , Kyoto , Japan
| | - Shinichi Kato
- Division of Pathological Sciences, Department of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University , Kyoto , Japan
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