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Cazzola R, Della Porta M, Piuri G, Maier JA. Magnesium: A Defense Line to Mitigate Inflammation and Oxidative Stress in Adipose Tissue. Antioxidants (Basel) 2024; 13:893. [PMID: 39199139 PMCID: PMC11351329 DOI: 10.3390/antiox13080893] [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: 06/28/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 09/01/2024] Open
Abstract
Magnesium (Mg) is involved in essential cellular and physiological processes. Globally, inadequate consumption of Mg is widespread among populations, especially those who consume processed foods, and its homeostasis is impaired in obese individuals and type 2 diabetes patients. Since Mg deficiency triggers oxidative stress and chronic inflammation, common features of several frequent chronic non-communicable diseases, interest in this mineral is growing in clinical medicine as well as in biomedicine. To date, very little is known about the role of Mg deficiency in adipose tissue. In obesity, the increase in fat tissue leads to changes in the release of cytokines, causing low-grade inflammation and macrophage infiltration. Hypomagnesemia in obesity can potentiate the excessive production of reactive oxygen species, mitochondrial dysfunction, and decreased ATP production. Importantly, Mg plays a role in regulating intracellular calcium concentration and is involved in carbohydrate metabolism and insulin receptor activity. This narrative review aims to consolidate existing knowledge, identify research gaps, and raise awareness of the critical role of Mg in supporting adipose tissue metabolism and preventing oxidative stress.
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Affiliation(s)
| | | | | | - Jeanette A. Maier
- Department of Biomedical and Clinical Sciences, University of Milano, 20174 Milan, Italy; (R.C.); (M.D.P.); (G.P.)
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2
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Lemche E, Killick R, Mitchell J, Caton PW, Choudhary P, Howard JK. Molecular mechanisms linking type 2 diabetes mellitus and late-onset Alzheimer's disease: A systematic review and qualitative meta-analysis. Neurobiol Dis 2024; 196:106485. [PMID: 38643861 DOI: 10.1016/j.nbd.2024.106485] [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: 06/30/2023] [Revised: 03/18/2024] [Accepted: 03/23/2024] [Indexed: 04/23/2024] Open
Abstract
Research evidence indicating common metabolic mechanisms through which type 2 diabetes mellitus (T2DM) increases risk of late-onset Alzheimer's dementia (LOAD) has accumulated over recent decades. The aim of this systematic review is to provide a comprehensive review of common mechanisms, which have hitherto been discussed in separate perspectives, and to assemble and evaluate candidate loci and epigenetic modifications contributing to polygenic risk linkages between T2DM and LOAD. For the systematic review on pathophysiological mechanisms, both human and animal studies up to December 2023 are included. For the qualitative meta-analysis of genomic bases, human association studies were examined; for epigenetic mechanisms, data from human studies and animal models were accepted. Papers describing pathophysiological studies were identified in databases, and further literature gathered from cited work. For genomic and epigenomic studies, literature mining was conducted by formalised search codes using Boolean operators in search engines, and augmented by GeneRif citations in Entrez Gene, and other sources (WikiGenes, etc.). For the systematic review of pathophysiological mechanisms, 923 publications were evaluated, and 138 gene loci extracted for testing candidate risk linkages. 3 57 publications were evaluated for genomic association and descriptions of epigenomic modifications. Overall accumulated results highlight insulin signalling, inflammation and inflammasome pathways, proteolysis, gluconeogenesis and glycolysis, glycosylation, lipoprotein metabolism and oxidation, cell cycle regulation or survival, autophagic-lysosomal pathways, and energy. Documented findings suggest interplay between brain insulin resistance, neuroinflammation, insult compensatory mechanisms, and peripheral metabolic dysregulation in T2DM and LOAD linkage. The results allow for more streamlined longitudinal studies of T2DM-LOAD risk linkages.
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Affiliation(s)
- Erwin Lemche
- Section of Cognitive Neuropsychiatry and Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, United Kingdom.
| | - Richard Killick
- Section of Old Age Psychiatry, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, United Kingdom
| | - Jackie Mitchell
- Department of Basic and Clinical Neurosciences, Maurice Wohl CIinical Neurosciences Institute, Institute of Psychiatry, Psychology & Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, United Kingdom
| | - Paul W Caton
- Diabetes Research Group, School of Life Course Sciences, King's College London, Hodgkin Building, Guy's Campus, London SE1 1UL, United Kingdom
| | - Pratik Choudhary
- Diabetes Research Group, Weston Education Centre, King's College London, 10 Cutcombe Road, London SE5 9RJ, United Kingdom
| | - Jane K Howard
- School of Cardiovascular and Metabolic Medicine & Sciences, Hodgkin Building, Guy's Campus, King's College London, Great Maze Pond, London SE1 1UL, United Kingdom
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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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4
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Ali ES, Chakrabarty B, Ramproshad S, Mondal B, Kundu N, Sarkar C, Sharifi-Rad J, Calina D, Cho WC. TRPM2-mediated Ca 2+ signaling as a potential therapeutic target in cancer treatment: an updated review of its role in survival and proliferation of cancer cells. Cell Commun Signal 2023; 21:145. [PMID: 37337283 DOI: 10.1186/s12964-023-01149-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/28/2023] [Indexed: 06/21/2023] Open
Abstract
The transient receptor potential melastatin subfamily member 2 (TRPM2), a thermo and reactive oxygen species (ROS) sensitive Ca2+-permeable cation channel has a vital role in surviving the cell as well as defending the adaptability of various cell groups during and after oxidative stress. It shows higher expression in several cancers involving breast, pancreatic, prostate, melanoma, leukemia, and neuroblastoma, indicating it raises the survivability of cancerous cells. In various cancers including gastric cancers, and neuroblastoma, TRPM2 is known to conserve viability, and several underlying mechanisms of action have been proposed. Transcription factors are thought to activate TRPM2 channels, which is essential for cell proliferation and survival. In normal physiological conditions with an optimal expression of TRPM2, mitochondrial ROS is produced in optimal amounts while regulation of antioxidant expression is carried on. Depletion of TRPM2 overexpression or activity has been shown to improve ischemia-reperfusion injury in organ levels, reduce tumor growth and/or viability of various malignant cancers like breast, gastric, pancreatic, prostate, head and neck cancers, melanoma, neuroblastoma, T-cell and acute myelogenous leukemia. This updated and comprehensive review also analyzes the mechanisms by which TRPM2-mediated Ca2+ signaling can regulate the growth and survival of different types of cancer cells. Based on the discussion of the available data, it can be concluded that TRPM2 may be a unique therapeutic target in the treatment of several types of cancer. Video Abstract.
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Affiliation(s)
- Eunus S Ali
- College of Medicine and Public Health, Flinders University, Bedford Park, 5042, Australia
- Gaco Pharmaceuticals, Dhaka, 1000, Bangladesh
- Present Address: Department of Biochemistry and Molecular Genetics, and Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, 303 E Superior St, Chicago, IL, 60611, USA
| | | | - Sarker Ramproshad
- Department of Pharmacy, Ranada Prasad Shaha University, Narayanganj, 1400, Bangladesh
| | - Banani Mondal
- Department of Pharmacy, Ranada Prasad Shaha University, Narayanganj, 1400, Bangladesh
| | - Neloy Kundu
- Pharmacy Discipline, Khulna University, Khulna, 9208, Bangladesh
| | - Chandan Sarkar
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
| | | | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, Craiova, 200349, Romania.
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China.
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5
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Wei Y, Khalaf AT, Rui C, Abdul Kadir SY, Zainol J, Oglah Z. The Emergence of TRP Channels Interactome as a Potential Therapeutic Target in Pancreatic Ductal Adenocarcinoma. Biomedicines 2023; 11:biomedicines11041164. [PMID: 37189782 DOI: 10.3390/biomedicines11041164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
Integral membrane proteins, known as Transient Receptor Potential (TRP) channels, are cellular sensors for various physical and chemical stimuli in the nervous system, respiratory airways, colon, pancreas, bladder, skin, cardiovascular system, and eyes. TRP channels with nine subfamilies are classified by sequence similarity, resulting in this superfamily's tremendous physiological functional diversity. Pancreatic Ductal Adenocarcinoma (PDAC) is the most common and aggressive form of pancreatic cancer. Moreover, the development of effective treatment methods for pancreatic cancer has been hindered by the lack of understanding of the pathogenesis, partly due to the difficulty in studying human tissue samples. However, scientific research on this topic has witnessed steady development in the past few years in understanding the molecular mechanisms that underlie TRP channel disturbance. This brief review summarizes current knowledge of the molecular role of TRP channels in the development and progression of pancreatic ductal carcinoma to identify potential therapeutic interventions.
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Affiliation(s)
- Yuanyuan Wei
- Basic Medical College, Chengdu University, Chengdu 610106, China
| | | | - Cao Rui
- Basic Medical College, Chengdu University, Chengdu 610106, China
| | - Samiah Yasmin Abdul Kadir
- Faculty of Medicine, Widad University College, BIM Point, Bandar Indera Mahkota, Kuantan 25200, Malaysia
| | - Jamaludin Zainol
- Faculty of Medicine, Widad University College, BIM Point, Bandar Indera Mahkota, Kuantan 25200, Malaysia
| | - Zahraa Oglah
- School of Science, Auckland University of Technology (AUT), 55 Wellesley Street, Auckland 1010, New Zealand
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Liu X, Chang Y, Choi S, Cai C, Zhang X, Pan Z. Blocking Store-Operated Ca 2+ Entry to Protect HL-1 Cardiomyocytes from Epirubicin-Induced Cardiotoxicity. Cells 2023; 12:723. [PMID: 36899859 PMCID: PMC10000558 DOI: 10.3390/cells12050723] [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: 12/01/2022] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
Epirubicin (EPI) is one of the most widely used anthracycline chemotherapy drugs, yet its cardiotoxicity severely limits its clinical application. Altered intracellular Ca2+ homeostasis has been shown to contribute to EPI-induced cell death and hypertrophy in the heart. While store-operated Ca2+ entry (SOCE) has recently been linked with cardiac hypertrophy and heart failure, its role in EPI-induced cardiotoxicity remains unknown. Using a publicly available RNA-seq dataset of human iPSC-derived cardiomyocytes, gene analysis showed that cells treated with 2 µM EPI for 48 h had significantly reduced expression of SOCE machinery genes, e.g., Orai1, Orai3, TRPC3, TRPC4, Stim1, and Stim2. Using HL-1, a cardiomyocyte cell line derived from adult mouse atria, and Fura-2, a ratiometric Ca2+ fluorescent dye, this study confirmed that SOCE was indeed significantly reduced in HL-1 cells treated with EPI for 6 h or longer. However, HL-1 cells presented increased SOCE as well as increased reactive oxygen species (ROS) production at 30 min after EPI treatment. EPI-induced apoptosis was evidenced by disruption of F-actin and increased cleavage of caspase-3 protein. The HL-1 cells that survived to 24 h after EPI treatment demonstrated enlarged cell sizes, up-regulated expression of brain natriuretic peptide (a hypertrophy marker), and increased NFAT4 nuclear translocation. Treatment by BTP2, a known SOCE blocker, decreased the initial EPI-enhanced SOCE, rescued HL-1 cells from EPI-induced apoptosis, and reduced NFAT4 nuclear translocation and hypertrophy. This study suggests that EPI may affect SOCE in two phases: the initial enhancement phase and the following cell compensatory reduction phase. Administration of a SOCE blocker at the initial enhancement phase may protect cardiomyocytes from EPI-induced toxicity and hypertrophy.
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Affiliation(s)
- Xian Liu
- Department of Kinesiology, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
- Department of Graduate Nursing, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
| | - Yan Chang
- Department of Graduate Nursing, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
- Bone and Muscle Research Center, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
| | - Sangyong Choi
- Department of Graduate Nursing, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
| | - Chuanxi Cai
- Department of Surgery, Division of Surgical Sciences, School of Medicine, University of Virginia, Charlottesville, VA 22903, USA
| | - Xiaoli Zhang
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Zui Pan
- Department of Kinesiology, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
- Department of Graduate Nursing, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
- Bone and Muscle Research Center, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX 76010, USA
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Mirbod SM, Khanahmad H, Amerizadeh A, Amirpour A, Mirbod SM, Zaker E. Viewpoints on the Role of Transient Receptor Potential Melastatin Channels in Cardiovascular System and Disease: A Systematic Review. Curr Probl Cardiol 2023; 48:101012. [PMID: 34644560 DOI: 10.1016/j.cpcardiol.2021.101012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/08/2021] [Indexed: 01/04/2023]
Abstract
Transient receptor potential (TRP) family play critical roles in cardiovascular system. TRPM family as largest TRP subfamily is non-voltage Ca2+-activated selective channels which has 8 members. This study aimed to discuss the role of TRPM family in cardiovascular system and diseases. Systematic search was performed covering PubMed, ISI Web of Science, and Google Scholar from inception until June 2021 using related keywords and Mesh terms for English studies with human, animal and in-vitro subjects. Finally 10 studies were selected for data extraction. Reviewing the articles showed that TRPM2, TRPM4, TRPM5, TRPM6 and TRPM7 play important roles in cardiovascular system and diseases. TRPM2 could be activated by reactive oxygen species (ROS) and effects on cardiac injury and cardiac fibrosis. TRPM7 and TRPM6 also have been reported to be associated with cardiac fibrosis and atrial fibrosis development respectively. TRPM4 channels contributed to resting membrane potential of cerebral artery smooth muscle cells and atrial contraction. TRPM5 channels are bitter taste sensors and prevent high salt intake and consequently high blood pressure due to the high salt intake. In conclusion based on the proof of the effectiveness of some members of TRPM family in the cardiovascular system, research on other members of this channel group seems to be useful and necessary to find their possible connection to the cardiovascular system.
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Affiliation(s)
| | - Hossein Khanahmad
- Department of Genetics and Molecular biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Atefeh Amerizadeh
- Department of Cardiology, Isfahan University of Medical Sciences, Isfahan, Iran; Applied Physiology Research Center, Department of Physiology, Cardiovascular Research Institute, Isfahan University of Medical sciences, Isfahan, Iran
| | - Afshin Amirpour
- Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyedeh Mojgan Mirbod
- Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Erfan Zaker
- Department of Genetics and Molecular biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Kuvaeva EE, Mertsalov IB, Simonova OB. Transient Receptor Potential (TRP) Family of Channel Proteins. Russ J Dev Biol 2022. [DOI: 10.1134/s1062360422050046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Öz A, Çinar R, Naziroğlu M. TRPV1 stimulation increased oxidative neurotoxicity and apoptosis in the glia cell membrane but not in the perinuclear area: An evidence of TRPV1 subtype. Metab Brain Dis 2022; 37:2291-2304. [PMID: 35776390 DOI: 10.1007/s11011-022-01037-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/13/2022] [Indexed: 12/01/2022]
Abstract
Glia are essential neurons of the immune system in the central nervous system. The effective mission of glia depends on their activation, release of cytokines, and oxidative cleaning of debris material from neuronal cells. Accumulating evidence indicates that microglia activation-induced oxidative stress via the activation Ca2+ permeable TRPV1 channel has an essential role in the pathophysiology of neurodegenerative diseases. However, there is scarce information on the cytosolic localization of TRPV1 and the induction of oxidative cytotoxicity in the glia. Hence, we investigated the interactions between cytosolic TRPV1 expression levels and oxidative neurotoxicity in the BV2, C8-D1A, N9 glia, and DBTRG glioblastoma cells. We observed TRPV1 expression in the perinuclear area but not in the cell membrane in the BV2, C8-D1A, and N9 cells. Hence, we observed no activation of TRPV1 on the increase of mitochondrial free reactive oxygen species (mROS) and apoptosis in the cells after the capsaicin stimulation. However, we observed TRPV1 channel expression in the positive control (DBTRG) cell membranes. Hence, the Ca2+ influx, TRPV1 current density, apoptosis, and mROS levels were increased in the DBTRG cells after the capsaicin stimulation, although their levels were diminished by the treatment of the TRPV1 blocker (capsazepine). In conclusion, the presence of TRPV1 in the cell membrane of DBTRG cells induced excessive generation of mROS and apoptosis actions, although the presence of TRPV1 in the perinuclear area did not cause the actions. It seems that there is a subtype of TRPV1 in the perinuclear area, and it is not activated by the capsaicin.
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Affiliation(s)
- Ahmi Öz
- Department of Biophysics, School of Medicine, Suleyman Demirel University, TR-32260, Isparta, Turkey
| | - Ramazan Çinar
- Department of Neuroscience, Institute of Health Sciences, Suleyman Demirel University, TR-32260, Isparta, Turkey
| | - Mustafa Naziroğlu
- Department of Biophysics, School of Medicine, Suleyman Demirel University, TR-32260, Isparta, Turkey.
- Department of Neuroscience, Institute of Health Sciences, Suleyman Demirel University, TR-32260, Isparta, Turkey.
- Neuroscience Research Center (NOROBAM), Suleyman Demirel University, TR-32260, Isparta, Turkey.
- Drug Discovery Unit, BSN Health, Analyses, Innovation, Consultancy, Organization, Agriculture and Industry Ltd, TR-32260, Isparta, Turkey.
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Norton CE, Shaw RL, Mittler R, Segal SS. Endothelial cells promote smooth muscle cell resilience to H 2 O 2 -induced cell death in mouse cerebral arteries. Acta Physiol (Oxf) 2022; 235:e13819. [PMID: 35380737 DOI: 10.1111/apha.13819] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 12/01/2022]
Abstract
AIM Brain injury produces reactive oxygen species (ROS). However, little is known of how acute oxidative stress affects cell survival in the cerebral vascular supply. We hypothesized that endothelial cells (ECs) are more resilient to H2 O2 and protect vascular smooth muscle cells (SMCs) during acute oxidative stress. METHODS Mouse posterior cerebral arteries (PCAs; diameter, ~80 µm) were exposed to H2 O2 (200 µM, 50 min, 37°C). Nuclear staining identified dead and live cells of intact and endothelium-disrupted vessels. SMC [Ca2+ ]i was assessed with Fura-2 fluorescence, and superoxide production was assessed by dihydroethidium and MitoSOX fluorescence. RESULTS In response to H2 O2 : SMC death (21%) exceeded EC death (5%) and increased following endothelial disruption (to 48%) with a corresponding increase in SMC Ca2+ entry through transient receptor potential (TRP) channels. Whereas pharmacological inhibition of TRPV4 channels prevented SMC death and reduced Ca2+ entry for intact vessels, both remained elevated following endothelial disruption. In contrast, pharmacological inhibition or genetic deletion of TRPC3 prevented SMC death and attenuated Ca2+ entry for both intact and endothelium-disrupted vessels. Inhibiting gap junctions increased EC death (to 22%) while SMC death and [Ca2+ ]i responses were attenuated by inhibiting nitric oxide synthesis or scavenging superoxide/peroxynitrite. Inhibiting NADPH oxidases also prevented SMC Ca2+ entry and death. H2 O2 increased mitochondrial ROS production while scavenging mitochondria-derived superoxide prevented SMC death but not Ca2+ entry. CONCLUSIONS During acute exposure of cerebral arteries to acute oxidative stress, ECs are more resilient than SMCs and the endothelium may protect SMCs by reducing Ca2+ entry through TRPC3 channels.
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Affiliation(s)
- Charles E. Norton
- Department of Medical Pharmacology and Physiology University of Missouri Columbia Missouri USA
| | - Rebecca L. Shaw
- Department of Medical Pharmacology and Physiology University of Missouri Columbia Missouri USA
| | - Ron Mittler
- Department of Surgery University of Missouri Columbia Missouri USA
| | - Steven S. Segal
- Department of Medical Pharmacology and Physiology University of Missouri Columbia Missouri USA
- Dalton Cardiovascular Research Center Columbia Missouri USA
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Functional Restoration following Global Cerebral Ischemia in Juvenile Mice following Inhibition of Transient Receptor Potential M2 (TRPM2) Ion Channels. Neural Plast 2021; 2021:8774663. [PMID: 34659399 PMCID: PMC8514917 DOI: 10.1155/2021/8774663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 09/20/2021] [Indexed: 02/06/2023] Open
Abstract
Hippocampal cell death and cognitive dysfunction are common following global cerebral ischemia across all ages, including children. Most research has focused on preventing neuronal death. Restoration of neuronal function after cell death is an alternative approach (neurorestoration). We previously identified transient receptor potential M2 (TRPM2) ion channels as a potential target for acute neuroprotection and delayed neurorestoration in an adult CA/CPR mouse model. Cardiac arrest/cardiopulmonary resuscitation (CA/CPR) in juvenile (p20-25) mice was used to investigate the role of ion TRPM2 channels in neuroprotection and ischemia-induced synaptic dysfunction in the developing brain. Our novel TRPM2 inhibitor, tatM2NX, did not confer protection against CA1 pyramidal cell death but attenuated synaptic plasticity (long-term plasticity (LTP)) deficits in both sexes. Further, in vivo administration of tatM2NX two weeks after CA/CPR reduced LTP impairments and restored memory function. These data provide evidence that pharmacological synaptic restoration of the surviving hippocampal network can occur independent of neuroprotection via inhibition of TRPM2 channels, providing a novel strategy to improve cognitive recovery in children following cerebral ischemia. Importantly, these data underscore the importance of age-appropriate models in disease research.
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12
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Peng C, Yang Z, Liu Z, Wang S, Yu H, Cui C, Hu Y, Xing Q, Hu J, Huang X, Bao Z. A Systematical Survey on the TRP Channels Provides New Insight into Its Functional Diversity in Zhikong Scallop ( Chlamys farreri). Int J Mol Sci 2021; 22:ijms222011075. [PMID: 34681735 PMCID: PMC8539334 DOI: 10.3390/ijms222011075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/25/2022] Open
Abstract
Transient receptor potential (TRP) channel plays a significant role in mediating various sensory physiological functions. It is widely present in the vertebrate and invertebrate genomes and can be activated by multiple compounds, messenger molecules, temperature, and mechanical stimulation. Mollusks are the second largest phylum of the animal kingdom and are sensitive to environmental factors. However, the molecular underpinnings through which mollusks sense and respond to environmental stimulus are unknown. In this study, we systematically identified and characterized 17 TRP channels (C.FA TRPs, seven subfamilies) in the genome of the Zhikong scallop (Chlamys farreri). All C.FA TRPs had six transmembrane structures (TM1–TM6). The sequences and structural features of C.FA TRPs are highly conserved with TRP channels of other species. Spatiotemporal expression profiling suggested that some C.FA TRPs participated in the early embryonic development of scallops and the sensory process of adult tissues. Notably, the expression of C.FA TRPM3 continuously increased during developmental stages and was highest among all C.FA TRPs. C.FA TRPC-α was specifically expressed in eyes, which may be involved in light transmission of scallop eyes. Under high temperature stress, C.FA TRPA1 and C.FA TRPA1-homolog upregulated significantly, which indicated that the TRPA subfamily is the thermoTRPs channel of scallops. Our results provided the first systematic study of TRP channels in scallops, and the findings will provide a valuable resource for a better understanding of TRP evolution and function in mollusks.
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Affiliation(s)
- Cheng Peng
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
| | - Zujing Yang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
| | - Zhi Liu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
| | - Shenhai Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
| | - Haitao Yu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
| | - Chang Cui
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
| | - Yuqing Hu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
| | - Qiang Xing
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China
| | - Jingjie Hu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
- Laboratory of Tropical Marine Germplasm Resources and Breeding Engineering, SANYA Oceanographic Institution of the Ocean University of CHINA (SOI-OUC), Sanya 572000, China
| | - Xiaoting Huang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China
- Correspondence:
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266000, China; (C.P.); (Z.Y.); (Z.L.); (S.W.); (H.Y.); (C.C.); (Y.H.); (Q.X.); (J.H.); (Z.B.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China
- Laboratory of Tropical Marine Germplasm Resources and Breeding Engineering, SANYA Oceanographic Institution of the Ocean University of CHINA (SOI-OUC), Sanya 572000, China
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13
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Okada Y, Sato-Numata K, Sabirov RZ, Numata T. Cell Death Induction and Protection by Activation of Ubiquitously Expressed Anion/Cation Channels. Part 2: Functional and Molecular Properties of ASOR/PAC Channels and Their Roles in Cell Volume Dysregulation and Acidotoxic Cell Death. Front Cell Dev Biol 2021; 9:702317. [PMID: 34307382 PMCID: PMC8299559 DOI: 10.3389/fcell.2021.702317] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/18/2021] [Indexed: 12/18/2022] Open
Abstract
For survival and functions of animal cells, cell volume regulation (CVR) is essential. Major hallmarks of necrotic and apoptotic cell death are persistent cell swelling and shrinkage, and thus they are termed the necrotic volume increase (NVI) and the apoptotic volume decrease (AVD), respectively. A number of ubiquitously expressed anion and cation channels play essential roles not only in CVR but also in cell death induction. This series of review articles address the question how cell death is induced or protected with using ubiquitously expressed ion channels such as swelling-activated anion channels, acid-activated anion channels, and several types of TRP cation channels including TRPM2 and TRPM7. In the Part 1, we described the roles of swelling-activated VSOR/VRAC anion channels. Here, the Part 2 focuses on the roles of the acid-sensitive outwardly rectifying (ASOR) anion channel, also called the proton-activated chloride (PAC) anion channel, which is activated by extracellular protons in a manner sharply dependent on ambient temperature. First, we summarize phenotypical properties, the molecular identity, and the three-dimensional structure of ASOR/PAC. Second, we highlight the unique roles of ASOR/PAC in CVR dysfunction and in the induction of or protection from acidotoxic cell death under acidosis and ischemic conditions.
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Affiliation(s)
- Yasunobu Okada
- National Institute for Physiological Sciences (NIPS), Okazaki, Japan.,Department of Physiology, School of Medicine, Aichi Medical University, Nagakute, Japan.,Department of Physiology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kaori Sato-Numata
- Department of Physiology, School of Medicine, Fukuoka University, Fukuoka, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Ravshan Z Sabirov
- Laboratory of Molecular Physiology, Institute of Biophysics and Biochemistry, National University of Uzbekistan, Tashkent, Uzbekistan
| | - Tomohiro Numata
- Department of Physiology, School of Medicine, Fukuoka University, Fukuoka, Japan
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14
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Wang M, Liu Y, Liang Y, Naruse K, Takahashi K. Systematic Understanding of Pathophysiological Mechanisms of Oxidative Stress-Related Conditions-Diabetes Mellitus, Cardiovascular Diseases, and Ischemia-Reperfusion Injury. Front Cardiovasc Med 2021; 8:649785. [PMID: 33928135 PMCID: PMC8076504 DOI: 10.3389/fcvm.2021.649785] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/22/2021] [Indexed: 12/14/2022] Open
Abstract
Reactive oxygen species (ROS) plays a role in intracellular signal transduction under physiological conditions while also playing an essential role in diseases such as hypertension, ischemic heart disease, and diabetes, as well as in the process of aging. The influence of ROS has some influence on the frequent occurrence of cardiovascular diseases (CVD) in diabetic patients. In this review, we considered the pathophysiological relationship between diabetes and CVD from the perspective of ROS. In addition, considering organ damage due to ROS elevation during ischemia-reperfusion, we discussed heart and lung injuries. Furthermore, we have focused on the transient receptor potential (TRP) channels and L-type calcium channels as molecular targets for ROS in ROS-induced tissue damages and have discussed about the pathophysiological mechanism of the injury.
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Affiliation(s)
| | | | | | | | - Ken Takahashi
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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15
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Alcohol as an early life stressor: Epigenetics, metabolic, neuroendocrine and neurobehavioral implications. Neurosci Biobehav Rev 2020; 118:654-668. [PMID: 32976915 DOI: 10.1016/j.neubiorev.2020.08.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/18/2020] [Accepted: 08/25/2020] [Indexed: 12/14/2022]
Abstract
Ethanol exposure during gestation is an early life stressor that profoundly dysregulates structure and functions of the embryonal nervous system, altering the cognitive and behavioral development. Such dysregulation is also achieved by epigenetic mechanisms, which, altering the chromatin structure, redraw the entire pattern of gene expression. In parallel, an oxidative stress response at the cellular level and a global upregulation of neuroendocrine stress response, regulated by the HPA axis, exist and persist in adulthood. This neurobehavioral framework matches those observed in other psychiatric diseases such as mood diseases, depression, autism; those early life stressing events, although probably triggered by specific and different epigenetic mechanisms, give rise to largely overlapping neurobehavioral phenotypes. An early diagnosis of prenatal alcohol exposure, using reliable markers of ethanol intake, together with a deeper understanding of the pathogenic mechanisms, some of them reversible by their nature, can offer a temporal "window" of intervention. Supplementing a mother's diet with protective and antioxidant substances in addition to supportive psychological therapies can protect newborns from being affected.
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16
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Salech F, Ponce DP, Paula-Lima AC, SanMartin CD, Behrens MI. Nicotinamide, a Poly [ADP-Ribose] Polymerase 1 (PARP-1) Inhibitor, as an Adjunctive Therapy for the Treatment of Alzheimer's Disease. Front Aging Neurosci 2020; 12:255. [PMID: 32903806 PMCID: PMC7438969 DOI: 10.3389/fnagi.2020.00255] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/24/2020] [Indexed: 12/25/2022] Open
Abstract
Nicotinamide (vitamin B3) is a key component in the cellular production of Nicotinamide Adenine Dinucleotide (NAD) and has long been associated with neuronal development, survival and death. Numerous data suggest that nicotinamide may offer therapeutic benefits in neurodegenerative disorders, including Alzheimer’s Disease (AD). Beyond its effect in NAD+ stores, nicotinamide is an inhibitor of Poly [ADP-ribose] polymerase 1 (PARP-1), an enzyme with multiple cellular functions, including regulation of cell death, energy/metabolism and inflammatory response. PARP-1 functions as a DNA repair enzyme but under intense DNA damage depletes the cell of NAD+ and ATP and leads to a non-apoptotic type of cell death called Parthanatos, which has been associated with the pathogenesis of neurodegenerative diseases. Moreover, NAD+ availability might potentially improve mitochondrial function, which is severely impaired in AD. PARP-1 inhibition may also exert a protective effect against neurodegeneration by its action to diminish neuroinflammation and microglial activation which are also implicated in the pathogenesis of AD. Here we discuss the evidence supporting the use of nicotinamide as adjunctive therapy for the treatment of early stages of AD based on the inhibitory effect of nicotinamide on PARP-1 activity. The data support evaluating nicotinamide as an adjunctive treatment for AD at early stages of the disease not only to increase NAD+ stores but as a PARP-1 inhibitor, raising the hypothesis that other PARP-1 inhibitors – drugs that are already approved for breast cancer treatment – might be explored for the treatment of AD.
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Affiliation(s)
- Felipe Salech
- Centro de Investigación Clínica Avanzada, Facultad de Medicina and Hospital Clínico Universidad de Chile, Santiago, Chile.,Sección de Geriatría Hospital Clínico Universidad de Chile, Santiago, Chile.,Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Daniela P Ponce
- Centro de Investigación Clínica Avanzada, Facultad de Medicina and Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Andrea C Paula-Lima
- Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Santiago, Chile.,Biomedical Neuroscience Institute, Facultad of Medicina, Universidad de Chile, Santiago, Chile.,Institute for Research in Dental Sciences, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Carol D SanMartin
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.,Departamento de Neurologiìa y Neurocirugiìa, Hospital Cliìnico Universidad de Chile, Santiago, Chile
| | - María I Behrens
- Centro de Investigación Clínica Avanzada, Facultad de Medicina and Hospital Clínico Universidad de Chile, Santiago, Chile.,Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Santiago, Chile.,Departamento de Neurologiìa y Neurocirugiìa, Hospital Cliìnico Universidad de Chile, Santiago, Chile.,Departamento de Neurología y Psiquiatría, Clínica Alemana de Santiago, Santiago, Chile
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17
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Duitama M, Vargas-López V, Casas Z, Albarracin SL, Sutachan JJ, Torres YP. TRP Channels Role in Pain Associated With Neurodegenerative Diseases. Front Neurosci 2020; 14:782. [PMID: 32848557 PMCID: PMC7417429 DOI: 10.3389/fnins.2020.00782] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/02/2020] [Indexed: 01/09/2023] Open
Abstract
Transient receptor potential (TRP) are cation channels expressed in both non-excitable and excitable cells from diverse tissues, including heart, lung, and brain. The TRP channel family includes 28 isoforms activated by physical and chemical stimuli, such as temperature, pH, osmotic pressure, and noxious stimuli. Recently, it has been shown that TRP channels are also directly or indirectly activated by reactive oxygen species. Oxidative stress plays an essential role in neurodegenerative disorders, such as Alzheimer's and Parkinson's diseases, and TRP channels are involved in the progression of those diseases by mechanisms involving changes in the crosstalk between Ca2+ regulation, oxidative stress, and production of inflammatory mediators. TRP channels involved in nociception include members of the TRPV, TRPM, TRPA, and TRPC subfamilies that transduce physical and chemical noxious stimuli. It has also been reported that pain is a complex issue in patients with Alzheimer's and Parkinson's diseases, and adequate management of pain in those conditions is still in discussion. TRPV1 has a role in neuroinflammation, a critical mechanism involved in neurodegeneration. Therefore, some studies have considered TRPV1 as a target for both pain treatment and neurodegenerative disorders. Thus, this review aimed to describe the TRP-dependent mechanism that can mediate pain sensation in neurodegenerative diseases and the therapeutic approach available to palliate pain and neurodegenerative symptoms throughout the regulation of these channels.
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18
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Ahad MA, Kumaran KR, Ning T, Mansor NI, Effendy MA, Damodaran T, Lingam K, Wahab HA, Nordin N, Liao P, Müller CP, Hassan Z. Insights into the neuropathology of cerebral ischemia and its mechanisms. Rev Neurosci 2020; 31:521-538. [DOI: 10.1515/revneuro-2019-0099] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 01/09/2020] [Indexed: 11/15/2022]
Abstract
AbstractCerebral ischemia is a result of insufficient blood flow to the brain. It leads to limited supply of oxygen and other nutrients to meet metabolic demands. These phenomena lead to brain damage. There are two types of cerebral ischemia: focal and global ischemia. This condition has significant impact on patient’s health and health care system requirements. Animal models such as transient occlusion of the middle cerebral artery and permanent occlusion of extracranial vessels have been established to mimic the conditions of the respective type of cerebral ischemia and to further understand pathophysiological mechanisms of these ischemic conditions. It is important to understand the pathophysiology of cerebral ischemia in order to identify therapeutic strategies for prevention and treatment. Here, we review the neuropathologies that are caused by cerebral ischemia and discuss the mechanisms that occur in cerebral ischemia such as reduction of cerebral blood flow, hippocampal damage, white matter lesions, neuronal cell death, cholinergic dysfunction, excitotoxicity, calcium overload, cytotoxic oedema, a decline in adenosine triphosphate (ATP), malfunctioning of Na+/K+-ATPase, and the blood-brain barrier breakdown. Altogether, the information provided can be used to guide therapeutic strategies for cerebral ischemia.
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Affiliation(s)
- Mohamad Anuar Ahad
- Centre for Drug Research, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Kesevan Rajah Kumaran
- Centre for Drug Research, Universiti Sains Malaysia, 11800 Penang, Malaysia
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Tiang Ning
- Centre for Drug Research, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Nur Izzati Mansor
- Medical Genetics Unit, Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
- Genetics and Regenerative Medicine Research Centre, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | | | - Thenmoly Damodaran
- Centre for Drug Research, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Kamilla Lingam
- Centre for Drug Research, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Habibah Abdul Wahab
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
- USM-RIKEN Centre for Aging Science (URICAS), Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Norshariza Nordin
- Medical Genetics Unit, Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
- Genetics and Regenerative Medicine Research Centre, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Ping Liao
- Calcium Signaling Laboratory, National Neuroscience Institute, Singapore 308433, Singapore
| | - Christian P. Müller
- Section of Addiction Medicine, Department of Psychiatry and Psychotherapy, University Clinic, Friedrich Alexander University Erlangen-Nuremberg, Schwabachanlage 6, D-91054 Erlangen, Germany
| | - Zurina Hassan
- Centre for Drug Research, Universiti Sains Malaysia, 11800 Penang, Malaysia
- USM-RIKEN Centre for Aging Science (URICAS), Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
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19
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Wen H, Gwathmey JK, Xie LH. Role of Transient Receptor Potential Canonical Channels in Heart Physiology and Pathophysiology. Front Cardiovasc Med 2020; 7:24. [PMID: 32158769 PMCID: PMC7052113 DOI: 10.3389/fcvm.2020.00024] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/11/2020] [Indexed: 12/13/2022] Open
Abstract
Transient receptor potential canonical (TRPC) channels are involved in the regulation of cardiac function under (patho)physiological conditions and are closely associated with the pathogenesis of cardiac hypertrophy, arrhythmias, and myocardial infarction. Understanding the molecular mechanisms and the regulatory pathway/locus of TRPC channels in related heart diseases will provide potential new concepts for designing novel drugs targeting TRPC channels. We will present the properties and regulation of TRPC channels and their roles in the development of various forms of heart disease. This article provides a brief review on the role of TRPC channels in the regulation of myocardial function as well as how TRPC channels may serve as a therapeutic target in heart failure and cardiac arrhythmias including atrial fibrillation.
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Affiliation(s)
- Hairuo Wen
- Beijing Key Laboratory, National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, Beijing, China.,Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, NJ, United States
| | - Judith K Gwathmey
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, NJ, United States
| | - Lai-Hua Xie
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, NJ, United States
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20
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Kim JH, Jang YS, Kim HI, Park JY, Park SH, Hwang YI, Jang SH, Jung KS, Park HS, Park CS. Activation of Transient Receptor Potential Melastatin Family Member 8 (TRPM8) Receptors Induces Proinflammatory Cytokine Expressions in Bronchial Epithelial Cells. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2020; 12:684-700. [PMID: 32400133 PMCID: PMC7224991 DOI: 10.4168/aair.2020.12.4.684] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/25/2020] [Accepted: 03/02/2020] [Indexed: 12/13/2022]
Abstract
Purpose Cold air is a major environmental factor that exacerbates asthma. Transient receptor potential melastatin family member 8 (TRPM8) is a cold-sensing channel expressed in the airway epithelium. However, its role in airway inflammation remains unknown. We investigated the role of TRPM8 in innate immune responses in bronchial epithelial cells and asthmatic subjects. Methods The TRPM8 mRNA and protein expression on BEAS2B human bronchial epithelial cells was examined by real-time polymerase chain reaction (PCR), immunofluorescence staining and western blotting. Additionally, interleukin (IL)-4, IL-6, IL-8, IL-13, IL-25 and thymic stromal lymphopoietin (TSLP) levels before and after menthol, dexamethasone and N-(4-tert-butylphenyl)-4-(3-chloropyridin-2-yl) piperazine-1-carboxamide (BCTC) treatments were measured via real-time PCR. TRPM8 protein levels in the supernatants of induced sputum from asthmatic subjects and normal control subjects were measured using enzyme-linked immunosorbent assay, and mRNA levels in sputum cell lysates were measured using real-time PCR. Results Treatment with up to 2 mM menthol dose-dependently increased TRPM8 mRNA and protein in BEAS2B cells compared to untreated cells (P < 0.001) and concomitantly increased IL-25 and TSLP mRNA (P < 0.05), but not IL-33 mRNA. BCTC (10 μM) significantly abolished menthol-induced up-regulation of TRPM8 mRNA and protein and IL-25 and TSLP mRNA (P < 0.01). TRPM8 protein levels were higher in the supernatants of induced sputum from asthmatic subjects (n = 107) than in those from healthy controls (n = 19) (P < 0.001), and IL-25, TSLP and IL-33 mRNA levels were concomitantly increased (P < 0.001). Additionally, TRPM8 mRNA levels correlated strongly with those of IL-25 and TSLP (P < 0.001), and TRPM8 protein levels were significantly higher in bronchodilator-responsive asthmatic subjects than in nonresponders. Conclusions TRPM8 may be involved in the airway epithelial cell innate immune response and a molecular target for the treatment of asthma.
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Affiliation(s)
- Joo Hee Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea.
| | - Young Sook Jang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea
| | - Hwan Il Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea
| | - Ji Young Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea
| | - Sung Hoon Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea
| | - Yong Il Hwang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea
| | - Seung Hun Jang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea
| | - Ki Suck Jung
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Lung Research Institute of Hallym University College of Medicine, Anyang, Korea
| | - Hae Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Choon Sik Park
- Division of Allergy and Respiratory Disease, Department of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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21
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Molecular Mechanisms of Calcium Signaling During Phagocytosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1246:103-128. [PMID: 32399828 DOI: 10.1007/978-3-030-40406-2_7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Calcium (Ca2+) is a ubiquitous second messenger involved in the regulation of numerous cellular functions including vesicular trafficking, cytoskeletal rearrangements and gene transcription. Both global as well as localized Ca2+ signals occur during phagocytosis, although their functional impact on the phagocytic process has been debated. After nearly 40 years of research, a consensus may now be reached that although not strictly required, Ca2+ signals render phagocytic ingestion and phagosome maturation more efficient, and their manipulation make an attractive avenue for therapeutic interventions. In the last decade many efforts have been made to identify the channels and regulators involved in generating and shaping phagocytic Ca2+ signals. While molecules involved in store-operated calcium entry (SOCE) of the STIM and ORAI family have taken center stage, members of the canonical, melastatin, mucolipin and vanilloid transient receptor potential (TRP), as well as purinergic P2X receptor families are now recognized to play significant roles. In this chapter, we review the recent literature on research that has linked specific Ca2+-permeable channels and regulators to phagocytic function. We highlight the fact that lipid mediators are emerging as important regulators of channel gating and that phagosomal ionic homeostasis and Ca2+ release also play essential parts. We predict that improved methodologies for measuring these factors will be critical for future advances in dissecting the intricate biology of this fascinating immune process.
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22
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A Role for H 2O 2 and TRPM2 in the Induction of Cell Death: Studies in KGN Cells. Antioxidants (Basel) 2019; 8:antiox8110518. [PMID: 31671815 PMCID: PMC6912327 DOI: 10.3390/antiox8110518] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 10/25/2019] [Indexed: 12/17/2022] Open
Abstract
Recent studies showed that KGN cells, derived from a human granulosa cell tumor (GCT), express NADPH oxidase 4 (NOX4), an important source of H2O2. Transient receptor potential melastatin 2 (TRPM2) channel is a Ca2+ permeable cation channel that can be activated by H2O2 and plays an important role in cellular functions. It is also able to promote susceptibility to cell death. We studied expression and functionality of TRPM2 in KGN cells and examined GCT tissue microarrays (TMAs) to explore in vivo relevance. We employed live cell, calcium and mitochondrial imaging, viability assays, fluorescence activated cell sorting (FACS) analysis, Western blotting and immunohistochemistry. We confirmed that KGN cells produce H2O2 and found that they express functional TRPM2. H2O2 increased intracellular Ca2+ levels and N-(p-Amylcinnamoyl)anthranilic acid (ACA), a TRPM2 inhibitor, blocked this action. H2O2 caused mitochondrial fragmentation and apoptotic cell death, which could be attenuated by a scavenger (Trolox). Immunohistochemistry showed parallel expression of NOX4 and TRPM2 in all 73 tumor samples examined. The results suggest that GCTs can be endowed with a system that may convey susceptibility to cell death. If so, induction of oxidative stress may be beneficial in GCT therapy. Our results also imply a therapeutic potential for TRPM2 as a drug target in GCTs.
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23
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Sharma S, Hopkins CR. Review of Transient Receptor Potential Canonical (TRPC5) Channel Modulators and Diseases. J Med Chem 2019; 62:7589-7602. [PMID: 30943030 DOI: 10.1021/acs.jmedchem.8b01954] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Transient receptor potential canonical (TRPC) channels are highly homologous, nonselective cation channels that form many homo- and heterotetrameric channels. These channels are highly abundant in the brain and kidney and have been implicated in numerous diseases, such as depression, addiction, and chronic kidney disease, among others. Historically, there have been very few selective modulators of the TRPC family in order to fully understand their role in disease despite their physiological significance. However, that has changed recently and there has been a significant increase in interest in this family of channels which has led to the emergence of selective tool compounds, and even preclinical drug candidates, over the past few years. This review will cover these new advancements in the discovery of TRPC modulators and the emergence of newly reported structural information which will undoubtedly lead to even greater advancements.
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Affiliation(s)
- Swagat Sharma
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Nebraska Medical Center , Omaha , Nebraska 68198-6125 , United States
| | - Corey R Hopkins
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Nebraska Medical Center , Omaha , Nebraska 68198-6125 , United States
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24
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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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25
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Park HJ, Shin KC, Yoou SK, Kang M, Kim JG, Sung DJ, Yu W, Lee Y, Kim SH, Bae YM, Park SW. Hydrogen peroxide constricts rat arteries by activating Na +-permeable and Ca 2+-permeable cation channels. Free Radic Res 2018; 53:94-103. [PMID: 30526150 DOI: 10.1080/10715762.2018.1556394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Oxidative stress is associated with many cardiovascular diseases, such as hypertension and arteriosclerosis. Oxidative stress reportedly activates the L-type voltage-gated calcium channel (VDCCL) and elevates [Ca2+]i in many cells. However, how oxidative stress activates VDCCL under clinical setting and the consequence for arteries are unclear. Here, we examined the hypothesis that hydrogen peroxide (H2O2) regulates membrane potential (Em) by altering Na+ influx through cation channels, which consequently activates VDCCL to induce vasoconstriction in rat mesenteric arteries. To measure the tone of the endothelium-denuded arteries, a conventional isometric organ chamber was used. Membrane currents and Em were recorded by the patch-clamp technique. [Ca2+]i and [Na+]i were measured with microfluorometry using Fura2-AM and SBFI-AM, respectively. We found that H2O2 (10 and 100 µM) increased arterial contraction, and nifedipine blocked the effects of H2O2 on isometric contraction. H2O2 increased [Ca2+]i as well as [Na+]i, and depolarised Em. Gd3+ (1 µM) blocked all these H2O2-induced effects including Em depolarisation and increases in [Ca2+]i and [Na+]i. Although both nifedipine (30 nM) and low Na+ bath solution completely prevented the H2O2-induced increase in [Na+], they only partly inhibited the H2O2-induced effects on [Ca2+]i and Em. Taken together, the results suggested that H2O2 constricts rat arteries by causing Em depolarisation and VDCCL activation through activating Gd3+-and nifedipine-sensitive, Na+-permeable channels as well as Gd3+-sensitive Ca2+-permeable cation channels. We suggest that unidentified Na+-permeable cation channels as well as Ca2+-permeable cation channels may function as important mediators for oxidative stress-induced vascular dysfunction.
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Affiliation(s)
- Hyun Ji Park
- a Department of Physiology, KU Open Innovation Center , Research Institute of Medical Science, Konkuk University School of Medicine , Chungju , Republic of Korea
| | - Kyung Chul Shin
- a Department of Physiology, KU Open Innovation Center , Research Institute of Medical Science, Konkuk University School of Medicine , Chungju , Republic of Korea
| | - Soon-Kyu Yoou
- b Department of Emergency Medical Services , Eulji University , Seongnam , Republic of Korea
| | - Myeongsin Kang
- b Department of Emergency Medical Services , Eulji University , Seongnam , Republic of Korea
| | - Jae Gon Kim
- a Department of Physiology, KU Open Innovation Center , Research Institute of Medical Science, Konkuk University School of Medicine , Chungju , Republic of Korea
| | - Dong Jun Sung
- c Division of Sport and Health Science, College of Biomedical and Health Science , Konkuk University , Chungju , Republic of Korea
| | - Wonjong Yu
- d Department of Physical Therapy , Eulji University , Eulji , Republic of Korea
| | - Youngjin Lee
- e Department of Radiological Science , Gachon University , Yeonsu-gu , Republic of Korea
| | - Sung Hea Kim
- f Department of Cardiology , Konkuk University School of Medicine , Seoul , Republic of Korea
| | - Young Min Bae
- a Department of Physiology, KU Open Innovation Center , Research Institute of Medical Science, Konkuk University School of Medicine , Chungju , Republic of Korea
| | - Sang Woong Park
- b Department of Emergency Medical Services , Eulji University , Seongnam , Republic of Korea
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26
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Wang T, Jiang L, Wei X, Liu B, Zhao J, Xie P, Yang B, Wang L. MiR-21-3p aggravates injury in rats with acute hemorrhagic necrotizing pancreatitis by activating TRP signaling pathway. Biomed Pharmacother 2018; 107:1744-1753. [PMID: 30257393 DOI: 10.1016/j.biopha.2018.08.164] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/27/2018] [Accepted: 08/31/2018] [Indexed: 02/03/2023] Open
Abstract
To evaluate the expression and effect of miR-21-3p in pancreas and lung injury of acute hemorrhagic necrotizing pancreatitis (AHNP) rats. AHNP rat model was constructed via retrograde injection of 5% sodium taurocholate into biliary pancreatic duct. Then rats were divided into normal, sham, AHNP, mimics negative control (NC), miR-21-3p mimics, inhibitors NC, miR-21-3p inhibitors, miR-21-3p mimics + phosphate buffer saline and miR-21-3p mimics + Gd3+ groups (N = 10 in each group). The expression of miR-21-3p, TRP signaling pathway factor, apoptosis related protein and histology were studied in pancreatic and lung tissues. Apoptosis of pancreatic acinar cells was detected. Oxidative stress indexes were detected in lung tissues. The level of PaO2 and PaCO2 and the expression of amylase, lipase and inflammatory factors were detected in blood. Compared with normal and sham groups, the miR-21-3p expression was increased in pancreatic and lung tissues of AHNP rats. MiR-21-3p expression was successfully regulated. Down-regulated miR-21-3p promoted apoptosis of pancreatic acinar cells and restored its function in AHNP rats. Up-regulated miR-21-3p reduced the lung oxygenation function, promoted pathological damage, and aggravated oxidative stress injury in AHNP rats. Meanwhile, up-regulated miR-21-3p also promoted the expression of serum enzymes and inflammatory factors, and activated TRP signaling pathway in AHNP rats. And miR-21-3p aggravated pancreatitis and lung injury by activating transient receptor potential (TRP) signaling pathway in AHNP rats. miR-21-3p promoted the pancreatic injury, inhibited apoptosis of necrotic acinar cells and aggravated lung oxidative stress injury by activating TRP signaling pathway in AHNP rats.
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Affiliation(s)
- Tao Wang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China
| | - Lihua Jiang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China.
| | - Xiaoyong Wei
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China
| | - Bo Liu
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China
| | - Junbo Zhao
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China
| | - Peilin Xie
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China
| | - Bo Yang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China
| | - Lijuan Wang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, No. 7, Zhengzhou Kangfufront Street, Zhengzhou City, 450052, Henan Province, China
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27
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Çakır M, Tekin S, Taşlıdere A, Çakan P, Düzova H, Gül CC. Protective effect of N-(p-amylcinnamoyl) anthranilic acid, phospholipase A 2 enzyme inhibitor, and transient receptor potential melastatin-2 channel blocker against renal ischemia-reperfusion injury. J Cell Biochem 2018; 120:3822-3832. [PMID: 30259992 DOI: 10.1002/jcb.27664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 08/21/2018] [Indexed: 12/25/2022]
Abstract
The production of reactive oxygen species and inflammatory events are the underlying mechanisms of ischemia-reperfusion injury (IRI). It was determined that transient receptor potential melastatin-2 (TRPM2) channels and phospholipase A2 (PLA 2 ) enzymes were associated with inflammation and cell death. In this study, we investigated the effect of N-( p-amylcinnamoyl) anthranilic acid (ACA), a TRPM2 channel blocker, and PLA 2 enzyme inhibitor on renal IRI. A total of 36 male Sprague-Dawley rats were divided into four groups: control, ischemia-reperfusion (I/R), I/R + ACA 5 mg, I/R + ACA 25 mg. In I/R applied groups, the ischemia for 45 minutes and reperfusion for 24 hours were applied bilaterally to the kidneys. In the I/R group, serum levels of the blood urea nitrogen (BUN), creatinine, cystatin C (CysC), kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), and interleukin-18 increased. On histopathological examination of renal tissue in the I/R group, the formation of glomerular and tubular damage was seen, and it was detected that there was an increase in the levels of malondialdehyde (MDA), caspase-3, total oxidant status (TOS), and oxidative stress index (OSI); and there was a decrease in total antioxidant capacity (TAC) and catalase enzyme activity. ACA administration reduced serum levels of BUN, creatinine, CysC, KIM-1, NGAL, interleukin-18. In the renal tissue, ACA administration reduced histopathological damage, levels of caspase-3, MDA, TOS, and OSI; and it increased the level of TAC and catalase enzyme activity. It has been shown with the histological and biochemical results in this study that ACA is protective against renal IRI.
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Affiliation(s)
- Murat Çakır
- Department of Physiology, Faculty of Medicine, University of Bozok, Yozgat, Turkey
| | - Suat Tekin
- Department of Physiology, Faculty of Medicine, University of Inonu, Malatya, Turkey
| | - Aslı Taşlıdere
- Department of Histology and Embryology, Faculty of Medicine, University of Inonu, Malatya, Turkey
| | - Pınar Çakan
- Department of Physiology, Faculty of Medicine, University of Inonu, Malatya, Turkey
| | - Halil Düzova
- Department of Physiology, Faculty of Medicine, University of Inonu, Malatya, Turkey
| | - Cemile Ceren Gül
- Department of Histology and Embryology, Faculty of Medicine, University of Inonu, Malatya, Turkey
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28
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Park SE, Song JH, Hong C, Kim DE, Sul JW, Kim TY, Seo BR, So I, Kim SY, Bae DJ, Park MH, Lim HM, Baek IJ, Riccio A, Lee JY, Shim WH, Park B, Koh JY, Hwang JJ. Contribution of Zinc-Dependent Delayed Calcium Influx via TRPC5 in Oxidative Neuronal Death and its Prevention by Novel TRPC Antagonist. Mol Neurobiol 2018; 56:2822-2835. [PMID: 30062674 PMCID: PMC6459797 DOI: 10.1007/s12035-018-1258-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/17/2018] [Indexed: 11/29/2022]
Abstract
Oxidative stress is a key mediator of neuronal death in acute brain injuries, such as epilepsy, trauma, and stroke. Although it is accompanied by diverse cellular changes, increases in levels of intracellular zinc ion (Zn2+) and calcium ion (Ca2+) may play a critical causative role in oxidative neuronal death. However, the mechanistic link between Zn2+ and Ca2+ dyshomeostasis in neurons during oxidative stress is not well-understood. Here, we show that the exposure of cortical neurons to H2O2 led to a zinc-triggered calcium influx, which resulted in neuronal death. The cyclin-dependent kinase inhibitor, NU6027, inhibited H2O2-induced Ca2+ increases and subsequent cell death in cortical neurons, without affecting the early increase in Zn2+. Therefore, we attempted to identify the zinc-regulated Ca2+ pathway that was inhibited by NU6027. The expression profile in cortical neurons identified transient receptor potential cation channel 5 (TRPC5) as a candidate that is known to involve in the generation of epileptiform burst firing and epileptic neuronal death (Phelan KD et al. 2012a; Phelan KD et al. 2013b). NU6027 inhibited basal and zinc-augmented TRPC5 currents in TRPC5-overexpressing HEK293 cells. Consistently, cortical neurons from TRPC5 knockout mice were highly resistant to H2O2-induced death. Moreover, NU6027 is neuroprotective in kainate-treated epileptic rats. Our results demonstrate that TRPC5 is a novel therapeutic target against oxidative neuronal injury in prolonged seizures and that NU6027 is a potent inhibitor of TRPC5.
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Affiliation(s)
- Sang Eun Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea
| | - Ji Hoon Song
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea
| | - Chansik Hong
- Department of Physiology, Chosun University School of Medicine, Kwangju, 61452, South Korea
| | - Dong Eun Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea
| | - Jee-Won Sul
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea
| | - Tae-Youn Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea.,Neural Injury Research Lab, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Bo-Ra Seo
- Neural Injury Research Lab, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Insuk So
- Department of Physiology and Institute of Dermatological Science, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Sang-Yeob Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Dong-Jun Bae
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea
| | - Mi-Ha Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea
| | - Hye Min Lim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea
| | - In-Jeoung Baek
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Antonio Riccio
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA.,Department of Neurobiology, Harvard Medical School, Boston, MA, USA
| | - Joo-Yong Lee
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Woo Hyun Shim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Bumwoo Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea.,Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
| | - Jae-Young Koh
- Neural Injury Research Lab, University of Ulsan College of Medicine, Seoul, 05505, South Korea. .,Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, South Korea.
| | - Jung Jin Hwang
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, South Korea. .,Department of Convergence Medicine, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, South Korea.
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29
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mRNA expression of transient receptor potential melastatin (TRPM) channels 2 and 7 in perinatal brain development. Int J Dev Neurosci 2018; 69:23-31. [DOI: 10.1016/j.ijdevneu.2018.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/04/2018] [Accepted: 05/18/2018] [Indexed: 12/31/2022] Open
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30
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Zhou T, Yu Z, Jian MY, Ahmad I, Trempus C, Wagener BM, Pittet JF, Aggarwal S, Garantziotis S, Song W, Matalon S. Instillation of hyaluronan reverses acid instillation injury to the mammalian blood gas barrier. Am J Physiol Lung Cell Mol Physiol 2018; 314:L808-L821. [PMID: 29368549 DOI: 10.1152/ajplung.00510.2017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Acid (HCl) aspiration during anesthesia may lead to acute lung injury. There is no effective therapy. We hypothesized that HCl instilled intratracheally in C57BL/6 mice results in the formation of low-molecular weight hyaluronan (L-HA), which activates RhoA and Rho kinase (ROCK), causing airway hyperresponsiveness (AHR) and increased permeability. Furthermore, instillation of high-molecular weight hyaluronan (H-HA; Yabro) will reverse lung injury. We instilled HCl in C57BL/6 wild-type (WT), myeloperoxidase gene-deficient (MPO-/-) mice, and CD44 gene-deficient (CD44-/-) mice. WT mice were also instilled intranasally with H-HA (Yabro) at 1 and 23 h post-HCl. All measurements were performed at 1, 5, or 24 h post-HCl. Instillation of HCl in WT but not in CD44-/- resulted in increased inflammation, AHR, lung injury, and L-HA in the bronchoalveolar lavage fluid (BALF) 24 h post-HCl; L-HA levels and lung injury were significantly lower in HCl-instilled MPO-/- mice. Isolated perfused lungs of HCl instilled WT but not of CD44-/- mice had elevated values of the filtration coefficient ( Kf). Addition of L-HA on the apical surface of human primary bronchial epithelial cell monolayer decreased barrier resistance ( RT). H-HA significantly mitigated inflammation, AHR, and pulmonary vascular leakage at 24 h after HCl instillation and mitigated the increase of Kf and RT, as well as ROCK2 phosphorylation. Increased H- and L-HA levels were found in the BALF of mechanically ventilated patients but not in healthy volunteers. HCl instillation-induced lung injury is mediated by the L-HA-CD44-RhoA-ROCK2 signaling pathway, and H-HA is a potential novel therapeutic agent for acid aspiration-induced lung injury.
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Affiliation(s)
- Ting Zhou
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama.,Department of Critical Care Medicine, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Zhihong Yu
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| | - Ming-Yuan Jian
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| | - Israr Ahmad
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| | - Carol Trempus
- Matrix Biology Group, Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences , Research Triangle Park, North Carolina
| | - Brant M Wagener
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| | - Saurabh Aggarwal
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| | - Stavros Garantziotis
- Matrix Biology Group, Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences , Research Triangle Park, North Carolina
| | - Weifeng Song
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| | - Sadis Matalon
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham , Birmingham, Alabama
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31
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Keckeis S, Wernecke L, Salchow DJ, Reichhart N, Strauß O. Activation of a Ca 2+-dependent cation conductance with properties of TRPM2 by reactive oxygen species in lens epithelial cells. Exp Eye Res 2017; 161:61-70. [PMID: 28603015 DOI: 10.1016/j.exer.2017.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 05/23/2017] [Accepted: 06/01/2017] [Indexed: 02/03/2023]
Abstract
Ion channels are crucial for maintenance of ion homeostasis and transparency of the lens. The lens epithelium is the metabolically and electrophysiologically active cell type providing nutrients, ions and water to the lens fiber cells. Ca2+-dependent non-selective ion channels seem to play an important role for ion homeostasis. The aim of the study was to identify and characterize Ca2+- and reactive oxygen species (ROS)-dependent non-selective cation channels in human lens epithelial cells. RT-PCR revealed gene expression of the Ca2+-activated non-selective cation channels TRPC3, TRPM2, TRPM4 and Ano6 in both primary lens epithelial cells and the cell line HLE-B3, whereas TRPM5 mRNA was only found in HLE-B3 cells. Using whole-cell patch-clamp technique, ionomycin evoked non-selective cation currents with linear current-voltage relationship in both cell types. The current was decreased by flufenamic acid (FFA), 2-APB, 9-phenanthrol and miconazole, but insensitive to DIDS, ruthenium red, and intracellularly applied spermine. H2O2 evoked a comparable current, abolished by FFA. TRPM2 protein expression in HLE-B3 cells was confirmed by means of immunocytochemistry and western blot. In summary, we conclude that lens epithelial cells functionally express Ca2+- and H2O2-activated non-selective cation channels with properties of TRPM2.
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Affiliation(s)
- Susanne Keckeis
- Experimental Ophthalmology, Department of Ophthalmology, Charité University Medicine Berlin, Berlin, Germany
| | - Laura Wernecke
- Experimental Ophthalmology, Department of Ophthalmology, Charité University Medicine Berlin, Berlin, Germany
| | - Daniel J Salchow
- Department of Ophthalmology, Charité University Medicine Berlin, Berlin, Germany
| | - Nadine Reichhart
- Experimental Ophthalmology, Department of Ophthalmology, Charité University Medicine Berlin, Berlin, Germany.
| | - Olaf Strauß
- Experimental Ophthalmology, Department of Ophthalmology, Charité University Medicine Berlin, Berlin, Germany.
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32
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Markó L, Mannaa M, Haschler TN, Krämer S, Gollasch M. Renoprotection: focus on TRPV1, TRPV4, TRPC6 and TRPM2. Acta Physiol (Oxf) 2017; 219:589-612. [PMID: 28028935 DOI: 10.1111/apha.12828] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 04/22/2016] [Accepted: 10/31/2016] [Indexed: 01/09/2023]
Abstract
Members of the transient receptor potential (TRP) cation channel receptor family have unique sites of regulatory function in the kidney which enables them to promote regional vasodilatation and controlled Ca2+ influx into podocytes and tubular cells. Activated TRP vanilloid 1 receptor channels (TRPV1) have been found to elicit renoprotection in rodent models of acute kidney injury following ischaemia/reperfusion. Transient receptor potential cation channel, subfamily C, member 6 (TRPC6) in podocytes is involved in chronic proteinuric kidney disease, particularly in focal segmental glomerulosclerosis (FSGS). TRP vanilloid 4 receptor channels (TRPV4) are highly expressed in the kidney, where they induce Ca2+ influx into endothelial and tubular cells. TRP melastatin (TRPM2) non-selective cation channels are expressed in the cytoplasm and intracellular organelles, where their inhibition ameliorates ischaemic renal pathology. Although some of their basic properties have been recently identified, the renovascular role of TRPV1, TRPV4, TRPC6 and TRPM2 channels in disease states such as obesity, hypertension and diabetes is largely unknown. In this review, we discuss recent evidence for TRPV1, TRPV4, TRPC6 and TRPM2 serving as potential targets for acute and chronic renoprotection in chronic vascular and metabolic disease.
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Affiliation(s)
- L. Markó
- Experimental and Clinical Research Center; A Joint Cooperation Between the Charité Medical Faculty and the Max-Delbrück Center (MDC) for Molecular Medicine; Berlin Germany
| | - M. Mannaa
- Experimental and Clinical Research Center; A Joint Cooperation Between the Charité Medical Faculty and the Max-Delbrück Center (MDC) for Molecular Medicine; Berlin Germany
- Charité Campus Virchow; Nephrology/Intensive Care; Berlin Germany
- German Institute of Human Nutrition; Potsdam-Rehbrücke Germany
| | - T. N. Haschler
- Experimental and Clinical Research Center; A Joint Cooperation Between the Charité Medical Faculty and the Max-Delbrück Center (MDC) for Molecular Medicine; Berlin Germany
- German Institute of Human Nutrition; Potsdam-Rehbrücke Germany
| | - S. Krämer
- German Institute of Human Nutrition; Potsdam-Rehbrücke Germany
| | - M. Gollasch
- Experimental and Clinical Research Center; A Joint Cooperation Between the Charité Medical Faculty and the Max-Delbrück Center (MDC) for Molecular Medicine; Berlin Germany
- Charité Campus Virchow; Nephrology/Intensive Care; Berlin Germany
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33
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Petros Z, Makonnen E, Aklillu E. Genome-Wide Association Studies for Idiosyncratic Drug-Induced Hepatotoxicity: Looking Back-Looking Forward to Next-Generation Innovation. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2017; 21:123-131. [PMID: 28253087 DOI: 10.1089/omi.2017.0006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Idiosyncratic drug-induced hepatotoxicity is a formidable challenge for rational drug discovery and development, as well as the science of personalized medicine. There is evidence that hereditary factors, in part, contribute to drug toxicity. This expert analysis and review offer the insights gained, and the challenges ahead, for genome-wide association studies (GWASs) of idiosyncratic drug-induced hepatotoxicity. Published articles on genome-wide and subsequent replication studies were systematically searched in the PubMed electronic database. We found that the genetic risk variants that were identified genome-wide, and replication confirmed, are mainly related to polymorphisms in the human leukocyte antigen (HLA) region that include HLA-DQB1*06:02 for amoxicillin-clavulanate, HLA-B*57:01 for flucloxacillin, HLA-DRB1*15:01 for lumiracoxib, and HLA-DRB1*07:01 for lapatinib and ximelagatran-induced hepatotoxicity. Additionally, polymorphisms in ST6 β-galactosamide α-2, 6-sialyltranferase-1 (ST6GAL1), which plays a role in systemic inflammatory response, and variants in intron of family with sequence similarity-65 member-B (FAM65B) that play roles in liver inflammation displayed association with flucloxacillin and antituberculosis drug-induced hepatotoxicity, respectively. Taken together, these GWAS findings offer molecular leads on the central role that the immune system plays in idiosyncratic drug-induced hepatotoxicity. We conclude the expert review with a brief discussion of the salient challenges ahead. These include, for example, the need for discursive discovery paradigms that incorporate alternating GWASs and candidate gene studies, as well as the study of the environtome, the entire complement of environmental factors, including science and innovation policies that enact on global society and the human host, and by extension, on susceptibility for idiosyncratic drug-induced hepatotoxicity.
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Affiliation(s)
- Zelalem Petros
- 1 Department of Pharmacology, School of Medicine, College of Health Sciences, Addis Ababa University , Addis Ababa, Ethiopia
| | - Eyasu Makonnen
- 1 Department of Pharmacology, School of Medicine, College of Health Sciences, Addis Ababa University , Addis Ababa, Ethiopia
| | - Eleni Aklillu
- 2 Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska University Hospital , Huddinge C1:68, Karolinska Institutet, Stockholm, Sweden
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Lee YT, Lin HY, Chan YWF, Li KHC, To OTL, Yan BP, Liu T, Li G, Wong WT, Keung W, Tse G. Mouse models of atherosclerosis: a historical perspective and recent advances. Lipids Health Dis 2017; 16:12. [PMID: 28095860 PMCID: PMC5240327 DOI: 10.1186/s12944-016-0402-5] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 12/27/2016] [Indexed: 12/20/2022] Open
Abstract
Atherosclerosis represents a significant cause of morbidity and mortality in both the developed and developing countries. Animal models of atherosclerosis have served as valuable tools for providing insights on its aetiology, pathophysiology and complications. They can be used for invasive interrogation of physiological function and provide a platform for testing the efficacy and safety of different pharmacological therapies. Compared to studies using human subjects, animal models have the advantages of being easier to manage, with controllable diet and environmental risk factors. Moreover, pathophysiological changes can be induced either genetically or pharmacologically to study the harmful effects of these interventions. There is no single ideal animal model, as different systems are suitable for different research objectives. A good understanding of the similarities and differences to humans enables effective extrapolation of data for translational application. In this article, we will examine the different mouse models for the study and elucidation of the pathophysiological mechanisms underlying atherosclerosis. We also review recent advances in the field, such as the role of oxidative stress in promoting endoplasmic reticulum stress, mitochondrial dysfunction and mitochondrial DNA damage, which can result in vascular inflammation and atherosclerosis. Finally, novel therapeutic approaches to reduce vascular damage caused by chronic inflammation using microRNA and nano-medicine technology, are discussed.
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Affiliation(s)
- Yee Ting Lee
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, SAR People’s Republic of China
| | - Hiu Yu Lin
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, SAR People’s Republic of China
| | | | | | - Olivia Tsz Ling To
- Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, SAR People’s Republic of China
| | - Bryan P Yan
- Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, SAR People’s Republic of China
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, 300211 People’s Republic of China
| | - Guangping Li
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, 300211 People’s Republic of China
| | - Wing Tak Wong
- School of Life Sciences, Chinese University of Hong Kong, Hong Kong, SAR People’s Republic of China
| | - Wendy Keung
- Stem Cell & Regenerative Medicine Consortium, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, SAR People’s Republic of China
| | - Gary Tse
- Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, SAR People’s Republic of China
- Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, SAR People’s Republic of China
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Groschner K, Shrestha N, Fameli N. Cardiovascular and Hemostatic Disorders: SOCE in Cardiovascular Cells: Emerging Targets for Therapeutic Intervention. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:473-503. [PMID: 28900929 DOI: 10.1007/978-3-319-57732-6_24] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The discovery of the store-operated Ca2+ entry (SOCE) phenomenon is tightly associated with its recognition as a pathway of high (patho)physiological significance in the cardiovascular system. Early on, SOCE has been investigated primarily in non-excitable cell types, and the vascular endothelium received particular attention, while a role of SOCE in excitable cells, specifically cardiac myocytes and pacemakers, was initially ignored and remains largely enigmatic even to date. With the recent gain in knowledge on the molecular components of SOCE as well as their cellular organization within nanodomains, potential tissue/cell type-dependent heterogeneity of the SOCE machinery along with high specificity of linkage to downstream signaling pathways emerged for cardiovascular cells. The basis of precise decoding of cellular Ca2+ signals was recently uncovered to involve correct spatiotemporal organization of signaling components, and even minor disturbances in these assemblies trigger cardiovascular pathologies. With this chapter, we wish to provide an overview on current concepts of cellular organization of SOCE signaling complexes in cardiovascular cells with particular focus on the spatiotemporal aspects of coupling to downstream signaling and the potential disturbance of these mechanisms by pathogenic factors. The significance of these mechanistic concepts for the development of novel therapeutic strategies will be discussed.
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Affiliation(s)
- Klaus Groschner
- Institute of Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/4, 8010, Graz, Austria.
| | - Niroj Shrestha
- Institute of Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/4, 8010, Graz, Austria
| | - Nicola Fameli
- Institute of Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/4, 8010, Graz, Austria
- Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, BC, Canada
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Bollimuntha S, Pani B, Singh BB. Neurological and Motor Disorders: Neuronal Store-Operated Ca 2+ Signaling: An Overview and Its Function. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:535-556. [PMID: 28900932 PMCID: PMC5821072 DOI: 10.1007/978-3-319-57732-6_27] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Calcium (Ca2+) is a ubiquitous second messenger that performs significant physiological task such as neurosecretion, exocytosis, neuronal growth/differentiation, and the development and/or maintenance of neural circuits. An important regulatory aspect of neuronal Ca2+ homeostasis is store-operated Ca2+ entry (SOCE) which, in recent years, has gained much attention for influencing a variety of nerve cell responses. Essentially, activation of SOCE ensues following the activation of the plasma membrane (PM) store-operated Ca2+ channels (SOCC) triggered by the depletion of endoplasmic reticulum (ER) Ca2+ stores. In addition to the TRPC (transient receptor potential canonical) and the Orai family of ion channels, STIM (stromal interacting molecule) proteins have been baptized as key molecular regulators of SOCE. Functional significance of the TRPC channels in neurons has been elaborately studied; however, information on Orai and STIM components of SOCE, although seems imminent, is currently limited. Importantly, perturbations in SOCE have been implicated in a spectrum of neuropathological conditions. Hence, understanding the precise involvement of SOCC in neurodegeneration would presumably unveil avenues for plausible therapeutic interventions. We thus review the role of SOCE-regulated neuronal Ca2+ signaling in selecting neurodegenerative conditions.
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Affiliation(s)
- Sunitha Bollimuntha
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, 58202, USA.
| | - Biswaranjan Pani
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, 58202, USA
| | - Brij B Singh
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, 58202, USA.
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Zhao LY, Xu WL, Xu ZQ, Qi C, Li Y, Cheng J, Liu LK, Wu YN, Gao J, Ye JH. The overexpressed functional transient receptor potential channel TRPM2 in oral squamous cell carcinoma. Sci Rep 2016; 6:38471. [PMID: 28008929 PMCID: PMC5180100 DOI: 10.1038/srep38471] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 11/10/2016] [Indexed: 12/20/2022] Open
Abstract
TRPM2, one member of the transient receptor potential (TRP) protein super-family, is a Ca2+-permeable channel that is activated by oxidative stress and confers susceptibility to cell death. In the human tongue specimens of carcinoma and the tongue carcinoma SCC cell lines, we observed the enhanced expression of TRPM2. By means of the whole-cell electrophysiological recording, the ADPR-induced currents mediated by TRPM2 were recorded in cultured SCC9 cells. Moreover, after H2O2 treatment for 24 hours, the apoptotic number of SCC9 cells was significantly increased. However, the selectively knocked-down TRPM2 with the small interfering RNA technique inhibited the survival and migration of the SCC9 cancer cells, which was independent of the p53-p21 pathway, since the expression of p21 was enhanced after TRPM2 knockdown. Furthermore, the sub-cellular localization of TRPM2 was remarkably different between cancerous and non-cancerous cells. A significant amount of the TRPM2 proteins were located in the nuclei in cancer cells. All these data suggest that TRPM2 is essential for the survival and migration of SCC cancer cells and may be a potential target for the selective treatment of tongue cancer.
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Affiliation(s)
- Ling-Yan Zhao
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China
| | - Wan-Lin Xu
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China.,Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Zeng-Qi Xu
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China
| | - Cui Qi
- Key Laboratory of Human Functional Genomics of Jiangsu, Department of Neurobiology, Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu, 211166, China
| | - Yang Li
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China
| | - Jie Cheng
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China
| | - Lai-Kui Liu
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China
| | - Yu-Nong Wu
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China
| | - Jun Gao
- Key Laboratory of Human Functional Genomics of Jiangsu, Department of Neurobiology, Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu, 211166, China
| | - Jin-Hai Ye
- Jiangsu Key Laboratory of Oral Diseases and Department of Oral and maxillofacial surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, 210029, China
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Iftinca M, Flynn R, Basso L, Melo H, Aboushousha R, Taylor L, Altier C. The stress protein heat shock cognate 70 (Hsc70) inhibits the Transient Receptor Potential Vanilloid type 1 (TRPV1) channel. Mol Pain 2016; 12:12/0/1744806916663945. [PMID: 27558883 PMCID: PMC5006304 DOI: 10.1177/1744806916663945] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/11/2016] [Indexed: 01/02/2023] Open
Abstract
Background Specialized cellular defense mechanisms prevent damage from chemical, biological, and physical hazards. The heat shock proteins have been recognized as key chaperones that maintain cell survival against a variety of exogenous and endogenous stress signals including noxious temperature. However, the role of heat shock proteins in nociception remains poorly understood. We carried out an expression analysis of the constitutively expressed 70 kDa heat-shock cognate protein, a member of the stress-induced HSP70 family in lumbar dorsal root ganglia from a mouse model of Complete Freund’s Adjuvant-induced chronic inflammatory pain. We used immunolabeling of dorsal root ganglion neurons, behavioral analysis and patch clamp electrophysiology in both dorsal root ganglion neurons and HEK cells transfected with Hsc70 and Transient Receptor Potential Channels to examine their functional interaction in heat shock stress condition. Results We report an increase in protein levels of Hsc70 in mouse dorsal root ganglia, 3 days post Complete Freund’s Adjuvant injection in the hind paw. Immunostaining of Hsc70 was observed in most of the dorsal root ganglion neurons, including the small size nociceptors immunoreactive to the TRPV1 channel. Standard whole-cell patch-clamp technique was used to record Transient Receptor Potential Vanilloid type 1 current after exposure to heat shock. We found that capsaicin-evoked currents are inhibited by heat shock in dorsal root ganglion neurons and transfected HEK cells expressing Hsc70 and TRPV1. Blocking Hsc70 with matrine or spergualin compounds prevented heat shock-induced inhibition of the channel. We also found that, in contrast to TRPV1, both the cold sensor channels TRPA1 and TRPM8 were unresponsive to heat shock stress. Finally, we show that inhibition of TRPV1 depends on the ATPase activity of Hsc70 and involves the rho-associated protein kinase. Conclusions Our work identified Hsc70 and its ATPase activity as a central cofactor of TRPV1 channel function and points to the role of this stress protein in pain associated with neurodegenerative and/or metabolic disorders, including aging.
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Affiliation(s)
- Mircea Iftinca
- Department of Physiology and Pharmacology and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada
| | - Robyn Flynn
- Department of Physiology and Pharmacology and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada
| | - Lilian Basso
- Department of Physiology and Pharmacology and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada
| | - Helvira Melo
- Department of Physiology and Pharmacology and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada
| | - Reem Aboushousha
- Department of Physiology and Pharmacology and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada
| | - Lauren Taylor
- Department of Physiology and Pharmacology and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada
| | - Christophe Altier
- Department of Physiology and Pharmacology and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada
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Reinhart B, Goins WF, Harel A, Chaudhry S, Goss JR, Yoshimura N, de Groat WC, Cohen JB, Glorioso JC. An HSV-based library screen identifies PP1α as a negative TRPV1 regulator with analgesic activity in models of pain. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2016; 3:16040. [PMID: 27382601 PMCID: PMC4916946 DOI: 10.1038/mtm.2016.40] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 04/01/2016] [Accepted: 04/01/2016] [Indexed: 02/06/2023]
Abstract
Transient receptor potential vanilloid 1 (TRPV1) is a pronociceptive cation channel involved in persistent inflammatory and neuropathic pain. Herpes simplex virus (HSV) vector expression of TRPV1 causes cell death in the presence of capsaicin, thereby completely blocking virus replication. Here we describe a selection system for negative regulators of TRPV1 based on rescue of virus replication. HSV-based coexpression of TRPV1 and a PC12 cell-derived cDNA library identified protein phosphatase 1α (PP1α) as a negative regulator of TRPV1, mimicking the activity of “poreless” (PL), a dominant-negative mutant of TRPV1. Vectors expressing PP1α or PL reduced thermal sensitivity following virus injection into rat footpads, but failed to reduce the nocifensive responses to menthol/icilin-activated cold pain or formalin, demonstrating that the activity identified in vitro is functional in vivo with a degree of specificity. This system should prove powerful for identifying other cellular factors that can inhibit ion channel activity.
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Affiliation(s)
- Bonnie Reinhart
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
| | - William F Goins
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
| | - Asaff Harel
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
| | - Suchita Chaudhry
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
| | - James R Goss
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
| | - Naoki Yoshimura
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - William C de Groat
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
| | - Justus B Cohen
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
| | - Joseph C Glorioso
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania, USA
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Abstract
Activation of ion channels and pores are essential steps during regulated cell death. Channels and pores participate in execution of apoptosis, necroptosis and other forms of caspase-independent cell death. Within the program of regulated cell death, these channels are strategically located. Ion channels can shrink cells and drive them towards apoptosis, resulting in silent, i.e. immunologically unrecognized cell death. Alternatively, activation of channels can induce cell swelling, disintegration of the cell membrane, and highly immunogenic necrotic cell death. The underlying cell death pathways are not strictly separated as identical stimuli may induce cell shrinkage and apoptosis when applied at low strength, but may also cause cell swelling at pronounced stimulation, resulting in regulated necrosis. Nevertheless, the precise role of ion channels during regulated cell death is far from being understood, as identical channels may support regulated death in some cell types, but may cause cell proliferation, cancer development, and metastasis in others. Along this line, the phospholipid scramblase and Cl(-)/nonselective channel anoctamin 6 (ANO6) shows interesting features, as it participates in apoptotic cell death during lower levels of activation, thereby inducing cell shrinkage. At strong activation, e.g. by stimulation of purinergic P2Y7 receptors, it participates in pore formation, causes massive membrane blebbing, cell swelling, and membrane disintegration. The LRRC8 proteins deserve much attention as they were found to have a major role in volume regulation, apoptotic cell shrinkage and resistance towards anticancer drugs.
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Affiliation(s)
- Karl Kunzelmann
- Institut für Physiologie, Universität Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany.
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Shakerley NL, Chandrasekaran A, Trebak M, Miller BA, Melendez JA. Francisella tularensis Catalase Restricts Immune Function by Impairing TRPM2 Channel Activity. J Biol Chem 2016; 291:3871-81. [PMID: 26679996 PMCID: PMC4759167 DOI: 10.1074/jbc.m115.706879] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 12/16/2015] [Indexed: 12/12/2022] Open
Abstract
As an innate defense mechanism, macrophages produce reactive oxygen species that weaken pathogens and serve as secondary messengers involved in immune function. The Gram-negative bacterium Francisella tularensis utilizes its antioxidant armature to limit the host immune response, but the mechanism behind this suppression is not defined. Here we establish that F. tularensis limits Ca(2+) entry in macrophages, thereby limiting actin reorganization and IL-6 production in a redox-dependent fashion. Wild type (live vaccine strain) or catalase-deficient F. tularensis (ΔkatG) show distinct profiles in their H2O2 scavenging rates, 1 and 0.015 pm/s, respectively. Murine alveolar macrophages infected with ΔkatG display abnormally high basal intracellular Ca(2+) concentration that did not increase further in response to H2O2. Additionally, ΔkatG-infected macrophages displayed limited Ca(2+) influx in response to ionomycin, as a result of ionophore H2O2 sensitivity. Exogenously added H2O2 or H2O2 generated by ΔkatG likely oxidizes ionomycin and alters its ability to transport Ca(2+). Basal increases in cytosolic Ca(2+) and insensitivity to H2O2-mediated Ca(2+) entry in ΔkatG-infected cells are reversed by the Ca(2+) channel inhibitors 2-aminoethyl diphenylborinate and SKF-96365. 2-Aminoethyl diphenylborinate but not SKF-96365 abrogated ΔkatG-dependent increases in macrophage actin remodeling and IL-6 secretion, suggesting a role for H2O2-mediated Ca(2+) entry through the transient receptor potential melastatin 2 (TRPM2) channel in macrophages. Indeed, increases in basal Ca(2+), actin polymerization, and IL-6 production are reversed in TRPM2-null macrophages infected with ΔkatG. Together, our findings provide compelling evidence that F. tularensis catalase restricts reactive oxygen species to temper macrophage TRPM2-mediated Ca(2+) signaling and limit host immune function.
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Affiliation(s)
- Nicole L Shakerley
- From the Colleges of Nanoscale Science, State University of New York, Polytechnic Institute, Albany, New York 12203 and
| | - Akshaya Chandrasekaran
- From the Colleges of Nanoscale Science, State University of New York, Polytechnic Institute, Albany, New York 12203 and
| | - Mohamed Trebak
- From the Colleges of Nanoscale Science, State University of New York, Polytechnic Institute, Albany, New York 12203 and the Departments of Cellular & Molecular Physiology and
| | - Barbara A Miller
- Pediatrics and Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033
| | - J Andrés Melendez
- From the Colleges of Nanoscale Science, State University of New York, Polytechnic Institute, Albany, New York 12203 and
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Di A, Mehta D, Malik AB. ROS-activated calcium signaling mechanisms regulating endothelial barrier function. Cell Calcium 2016; 60:163-71. [PMID: 26905827 DOI: 10.1016/j.ceca.2016.02.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 02/07/2023]
Abstract
Increased vascular permeability is a common pathogenic feature in many inflammatory diseases. For example in acute lung injury (ALI) and its most severe form, the acute respiratory distress syndrome (ARDS), lung microvessel endothelia lose their junctional integrity resulting in leakiness of the endothelial barrier and accumulation of protein rich edema. Increased reactive oxygen species (ROS) generated by neutrophils (PMNs) and other inflammatory cells play an important role in increasing endothelial permeability. In essence, multiple inflammatory syndromes are caused by dysfunction and compromise of the barrier properties of the endothelium as a consequence of unregulated acute inflammatory response. This review focuses on the role of ROS signaling in controlling endothelial permeability with particular focus on ALI. We summarize below recent progress in defining signaling events leading to increased endothelial permeability and ALI.
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Affiliation(s)
- Anke Di
- Department of Pharmacology, The University of Illinois College of Medicine, Chicago, IL 60612, United States
| | - Dolly Mehta
- Department of Pharmacology, The University of Illinois College of Medicine, Chicago, IL 60612, United States
| | - Asrar B Malik
- Department of Pharmacology, The University of Illinois College of Medicine, Chicago, IL 60612, United States.
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Badr H, Kozai D, Sakaguchi R, Numata T, Mori Y. Different Contribution of Redox-Sensitive Transient Receptor Potential Channels to Acetaminophen-Induced Death of Human Hepatoma Cell Line. Front Pharmacol 2016; 7:19. [PMID: 26903865 PMCID: PMC4746322 DOI: 10.3389/fphar.2016.00019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 01/21/2016] [Indexed: 01/30/2023] Open
Abstract
Acetaminophen (APAP) is a safe analgesic antipyretic drug at prescribed doses. Its overdose, however, can cause life-threatening liver damage. Though, involvement of oxidative stress is widely acknowledged in APAP-induced hepatocellular death, the mechanism of this increased oxidative stress and the associated alterations in Ca2+ homeostasis are still unclear. Among members of transient receptor potential (TRP) channels activated in response to oxidative stress, we here identify that redox-sensitive TRPV1, TRPC1, TRPM2, and TRPM7 channels underlie Ca2+ entry and downstream cellular damages induced by APAP in human hepatoma (HepG2) cells. Our data indicate that APAP treatment of HepG2 cells resulted in increased reactive oxygen species (ROS) production, glutathione (GSH) depletion, and Ca2+ entry leading to increased apoptotic cell death. These responses were significantly suppressed by pretreatment with the ROS scavengers N-acetyl-L-cysteine (NAC) and 4,5-dihydroxy-1,3-benzene disulfonic acid disodium salt monohydrate (Tiron), and also by preincubation of cells with the glutathione inducer Dimethylfumarate (DMF). TRP subtype-targeted pharmacological blockers and siRNAs strategy revealed that suppression of either TRPV1, TRPC1, TRPM2, or TRPM7 reduced APAP-induced ROS formation, Ca2+ influx, and cell death; the effects of suppression of TRPV1 or TRPC1, known to be activated by oxidative cysteine modifications, were stronger than those of TRPM2 or TRPM7. Interestingly, TRPV1 and TRPC1 were labeled by the cysteine-selective modification reagent, 5,5′-dithiobis (2-nitrobenzoic acid)-2biotin (DTNB-2Bio), and this was attenuated by pretreatment with APAP, suggesting that APAP and/or its oxidized metabolites act directly on the modification target cysteine residues of TRPV1 and TRPC1 proteins. In human liver tissue, TRPV1, TRPC1, TRPM2, and TRPM7 channels transcripts were localized mainly to hepatocytes and Kupffer cells. Our findings strongly suggest that APAP-induced Ca2+ entry and subsequent hepatocellular death are regulated by multiple redox-activated cation channels, among which TRPV1 and TRPC1 play a prominent role.
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Affiliation(s)
- Heba Badr
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Kyoto, Japan
| | - Daisuke Kozai
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Kyoto, Japan
| | - Reiko Sakaguchi
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto UniversityKyoto, Japan; World Premier International Research Initiative-Institute for Integrated Cell-Material Sciences, Kyoto UniversityKyoto, Japan
| | - Tomohiro Numata
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto UniversityKyoto, Japan; Laboratory of Environmental Systems Biology, Department of Technology and Ecology, Hall of Global Environmental Studies, Kyoto UniversityKyoto, Japan
| | - Yasuo Mori
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto UniversityKyoto, Japan; World Premier International Research Initiative-Institute for Integrated Cell-Material Sciences, Kyoto UniversityKyoto, Japan; Laboratory of Environmental Systems Biology, Department of Technology and Ecology, Hall of Global Environmental Studies, Kyoto UniversityKyoto, Japan
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Sappington RM, Sidorova T, Ward NJ, Chakravarthy R, Ho KW, Calkins DJ. Activation of transient receptor potential vanilloid-1 (TRPV1) influences how retinal ganglion cell neurons respond to pressure-related stress. Channels (Austin) 2016; 9:102-13. [PMID: 25713995 DOI: 10.1080/19336950.2015.1009272] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Our recent studies implicate the transient receptor potential vanilloid-1 (TRPV1) channel as a mediator of retinal ganglion cell (RGC) function and survival. With elevated pressure in the eye, TRPV1 increases in RGCs, supporting enhanced excitability, while Trpv1 -/- accelerates RGC degeneration in mice. Here we find TRPV1 localized in monkey and human RGCs, similar to rodents. Expression increases in RGCs exposed to acute changes in pressure. In retinal explants, contrary to our animal studies, both Trpv1 -/- and pharmacological antagonism of the channel prevented pressure-induced RGC apoptosis, as did chelation of extracellular Ca(2+). Finally, while TRPV1 and TRPV4 co-localize in some RGC bodies and form a protein complex in the retina, expression of their mRNA is inversely related with increasing ocular pressure. We propose that TRPV1 activation by pressure-related insult in the eye initiates changes in expression that contribute to a Ca(2+)-dependent adaptive response to maintain excitatory signaling in RGCs.
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Affiliation(s)
- Rebecca M Sappington
- a The Vanderbilt Eye Institute and Vanderbilt Brain Institute ; Vanderbilt University School of Medicine ; Nashville , TN USA
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Perspectives of TRPV1 Function on the Neurogenesis and Neural Plasticity. Neural Plast 2016; 2016:1568145. [PMID: 26881090 PMCID: PMC4736371 DOI: 10.1155/2016/1568145] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 12/09/2015] [Indexed: 01/01/2023] Open
Abstract
The development of new strategies to renew and repair neuronal networks using neural plasticity induced by stem cell graft could enable new therapies to cure diseases that were considered lethal until now. In adequate microenvironment a neuronal progenitor must receive molecular signal of a specific cellular context to determine fate, differentiation, and location. TRPV1, a nonselective calcium channel, is expressed in neurogenic regions of the brain like the subgranular zone of the hippocampal dentate gyrus and the telencephalic subventricular zone, being valuable for neural differentiation and neural plasticity. Current data show that TRPV1 is involved in several neuronal functions as cytoskeleton dynamics, cell migration, survival, and regeneration of injured neurons, incorporating several stimuli in neurogenesis and network integration. The function of TRPV1 in the brain is under intensive investigation, due to multiple places where it has been detected and its sensitivity for different chemical and physical agonists, and a new role of TRPV1 in brain function is now emerging as a molecular tool for survival and control of neural stem cells.
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Cao QF, Qian SB, Wang N, Zhang L, Wang WM, Shen HB. TRPM2 mediates histone deacetylase inhibition-induced apoptosis in bladder cancer cells. Cancer Biother Radiopharm 2015; 30:87-93. [PMID: 25760728 DOI: 10.1089/cbr.2014.1697] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
PURPOSE Inhibition of histone deacetylase (HDAC) activity results in growth arrest and apoptosis in multiple types of cancer cells. It has been well established that p21 is responsible for HDAC inhibitor (HDACi)-induced growth inhibition, while the mechanism underlying HDACi-elicited apoptosis in bladder cancer cells remains largely unknown. METHODS In this study, the apoptotic response to HDACi (trichostatin A and sodium butyrate) with different concentrations was determined by flow cytometry analysis and real-time polymerase chain reaction was conducted to examine the TRPM2 (Transient receptor potential cation channel, subfamily M, member 2) expression change on HDACi treatment. TRPM2 knockdown and overexpression were performed to investigate the role of TRPM2 in HDACi-induced apoptosis. The mechanism of HDACi-elicited upregulation of TRPM2 was studied by chromatin-immunoprecipitation. RESULTS HDACi efficiently induced cell apoptosis and TRPM2 upregulation in a time- and dose-dependent manner in T24 bladder cancer cells. Functional analysis revealed that TRPM2 overexpression promotes apoptosis of T24 cells. Conversely, TRPM2 depletion remarkably antagonized HDACi-induced apoptosis. Furthermore, HDAC inhibition-elicited TRPM2 upregulation is caused by the increase of acetylated H3K9 (H3K9Ac) enrichment in TRPM2 promoter. CONCLUSIONS These data suggest that the HDACi-elicited upregulation of TRPM2 expression is required for HDACi-induced apoptosis in bladder cancer cells and that HDACi activated the enrichment of H3K9Ac-represented permissive chromatin in TRPM2 promoter.
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Affiliation(s)
- Qi-feng Cao
- Department of Urology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
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Acute Treatment with a Novel TRPC4/C5 Channel Inhibitor Produces Antidepressant and Anxiolytic-Like Effects in Mice. PLoS One 2015; 10:e0136255. [PMID: 26317356 PMCID: PMC4552833 DOI: 10.1371/journal.pone.0136255] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 08/03/2015] [Indexed: 12/28/2022] Open
Abstract
Transient receptor potential canonical (TRPC) channels are widely expressed in brain and involved in various aspects of brain function. Both TRPC4 and TRPC5 have been implicated in innate fear function, which represents a key response to environmental stress. However, to what extent the TRPC4/C5 channels are involved in psychiatric disorders remains unexplored. Here, we tested the antidepressant and anxiolytic-like effects of a newly identified TRPC4/C5 inhibitor, M084. We show that a single intraperitoneal administration of M084 at 10 mg/kg body weight to C57BL/6 male mice significantly shortened the immobility time in forced swim test and tail suspension test within as short as 2 hours. The M084-treated mice spent more time exploring in illuminated and open areas in light/dark transition test and elevated plus maze test. In mice subjected to chronic unpredictable stress, M084 treatment reversed the enhanced immobility time in forced swim test and decreased the latency to feed in novelty suppressed feeding test. The treatment of M084 increased BDNF expression in both mRNA and protein levels, as well as phosphorylation levels of AKT and ERK, in prefrontal cortex. Our results indicate that M084 exerts rapid antidepressant and anxiolytic-like effects at least in part by acting on BDNF and its downstream signaling. We propose M084 as a lead compound for further druggability research.
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Ru X, Zheng C, Zhao Q, Lan HY, Huang Y, Wan S, Mori Y, Yao X. Transient receptor potential channel M2 contributes to neointimal hyperplasia in vascular walls. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1360-71. [DOI: 10.1016/j.bbadis.2015.03.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 03/21/2015] [Accepted: 03/31/2015] [Indexed: 12/13/2022]
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49
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Genome-wide Association Study on Platinum-induced Hepatotoxicity in Non-Small Cell Lung Cancer Patients. Sci Rep 2015; 5:11556. [PMID: 26100964 PMCID: PMC4477405 DOI: 10.1038/srep11556] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 05/22/2015] [Indexed: 01/09/2023] Open
Abstract
Platinum-based chemotherapy has been shown to improve the survival of advanced non-small cell lung cancer (NSCLC) patients; the platinum-induced toxicity severely impedes the success of chemotherapy. Genetic variations, such as single nucleotide polymorphisms (SNPs), may contribute to patients’ responses to the platinum-based chemotherapy. To identify SNPs that modify the risk of hepatotoxicity in NSCLC patients receiving platinum-based chemotherapy, we performed a genome-wide association scan in 334 subjects followed by a replication study among 375 subjects. Consistent associations with platinum-induced hepatotoxicity risk was identified for SNP rs2838566 located at 21q22.3, as the minor A allele could significantly increase the risk of liver injury (OR = 3.78, 95%CI = 1.99–7.19, P = 4.90 × 10−5 for GWAS scan, OR = 1.89, 95%CI = 1.03–3.46, P = 0.039 for replication, and OR = 2.56, 95%CI = 1.65–3.95, P = 2.55 × 10−5 for pooled population). These results suggested that genetic variants at 21q22.3 may contribute to the susceptibility of platinum-induced hepatotoxicity in NSCLC patients.
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50
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Lazrak A, Creighton J, Yu Z, Komarova S, Doran SF, Aggarwal S, Emala CW, Stober VP, Trempus CS, Garantziotis S, Matalon S. Hyaluronan mediates airway hyperresponsiveness in oxidative lung injury. Am J Physiol Lung Cell Mol Physiol 2015; 308:L891-903. [PMID: 25747964 DOI: 10.1152/ajplung.00377.2014] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 03/03/2015] [Indexed: 02/07/2023] Open
Abstract
Chlorine (Cl2) inhalation induces severe oxidative lung injury and airway hyperresponsiveness (AHR) that lead to asthmalike symptoms. When inhaled, Cl2 reacts with epithelial lining fluid, forming by-products that damage hyaluronan, a constituent of the extracellular matrix, causing the release of low-molecular-weight fragments (L-HA, <300 kDa), which initiate a series of proinflammatory events. Cl2 (400 ppm, 30 min) exposure to mice caused an increase of L-HA and its binding partner, inter-α-trypsin-inhibitor (IαI), in the bronchoalveolar lavage fluid. Airway resistance following methacholine challenge was increased 24 h post-Cl2 exposure. Intratracheal administration of high-molecular-weight hyaluronan (H-HA) or an antibody against IαI post-Cl2 exposure decreased AHR. Exposure of human airway smooth muscle (HASM) cells to Cl2 (100 ppm, 10 min) or incubation with Cl2-exposed H-HA (which fragments it to L-HA) increased membrane potential depolarization, intracellular Ca(2+), and RhoA activation. Inhibition of RhoA, chelation of intracellular Ca(2+), blockade of cation channels, as well as postexposure addition of H-HA, reversed membrane depolarization in HASM cells. We propose a paradigm in which oxidative lung injury generates reactive species and L-HA that activates RhoA and Ca(2+) channels of airway smooth muscle cells, increasing their contractility and thus causing AHR.
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Affiliation(s)
- Ahmed Lazrak
- Department of Anesthesiology and Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Judy Creighton
- Department of Anesthesiology and Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Zhihong Yu
- Department of Anesthesiology and Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Svetlana Komarova
- Department of Anesthesiology and Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Stephen F Doran
- Department of Anesthesiology and Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Saurabh Aggarwal
- Department of Anesthesiology and Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Charles W Emala
- Department of Anesthesiology, Columbia University, New York, New York; and
| | - Vandy P Stober
- Laboratory of Respiratory Biology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Carol S Trempus
- Laboratory of Respiratory Biology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Stavros Garantziotis
- Laboratory of Respiratory Biology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Sadis Matalon
- Department of Anesthesiology and Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama;
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