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Ren X, Gao X, Li Z, Ding Y, Xu A, Du L, Yang Y, Wang D, Wang Z, Shu S. Electroacupuncture ameliorates neuroinflammation by inhibiting TRPV4 channel in ischemic stroke. CNS Neurosci Ther 2024; 30:e14618. [PMID: 38334061 PMCID: PMC10853892 DOI: 10.1111/cns.14618] [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: 09/25/2023] [Revised: 11/20/2023] [Accepted: 12/02/2023] [Indexed: 02/10/2024] Open
Abstract
AIMS We investigated the potential mechanisms underlying the therapeutic efficacy of electroacupuncture (EA) at the Shuigou (GV26) and Baihui (GV20) acupoints in the treatment of ischemic stroke. METHODS We assessed the therapeutic effects of EA on MCAO mice through behavioral studies and TTC staining. Various techniques, such as RT-PCR, immunofluorescence, and Western blots, were employed to evaluate the activation and polarization of microglia/macrophages, and changes in the TRPV4 ion channel. We used the TRPV4 antagonist GSK2193874 (GSK219) to verify the involvement of TRPV4 in the therapeutic effects of EA. RESULTS EA effectively improved neurological impairments and reduced cerebral infarction volume in MCAO mice. It suppressed activated microglia/macrophages and inhibited their polarization toward the M1 phenotype post-MCAO. EA also downregulated the expression of pro-inflammatory cytokines, including Tnf-α, Il-6, Il-1β, and Ccl-2 mRNA. Furthermore, EA reduced the elevated expression of TRPV4 following MCAO. Treatment with the TRPV4 antagonist GSK219 mirrored the effects of EA in MCAO mice. Notably, the combination of EA and GSK219 did not demonstrate an additive or synergistic effect. CONCLUSION EA may inhibit neuroinflammation and exhibit a protective effect against ischemic brain injury by suppressing TRPV4 and the subsequent M1 polarization of microglia/macrophages.
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Affiliation(s)
- Xueqi Ren
- School of Traditional Chinese MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xinyi Gao
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Ziqing Li
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yangyang Ding
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Ao Xu
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Lixia Du
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yufang Yang
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Deheng Wang
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Zhifei Wang
- School of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Shi Shu
- School of Traditional Chinese MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
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2
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Kudsi SQ, Viero FT, Pereira LG, Trevisan G. Involvement of the Transient Receptor Channels in Preclinical Models of Musculoskeletal Pain. Curr Neuropharmacol 2024; 22:72-87. [PMID: 37694792 DOI: 10.2174/1570159x21666230908094159] [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: 04/10/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 09/12/2023] Open
Abstract
BACKGROUND Musculoskeletal pain is a condition that affects bones, muscles, and tendons and is present in various diseases and/or clinical conditions. This type of pain represents a growing problem with enormous socioeconomic impacts, highlighting the importance of developing treatments tailored to the patient's needs. TRP is a large family of non-selective cation channels involved in pain perception. Vanilloid (TRPV1 and TRPV4), ankyrin (TRPA1), and melastatin (TRPM8) are involved in physiological functions, including nociception, mediation of neuropeptide release, heat/cold sensing, and mechanical sensation. OBJECTIVE In this context, we provide an updated view of the most studied preclinical models of muscle hyperalgesia and the role of transient receptor potential (TRP) in these models. METHODS This review describes preclinical models of muscle hyperalgesia induced by intramuscular administration of algogenic substances and/or induction of muscle damage by physical exercise in the masseter, gastrocnemius, and tibial muscles. RESULTS The participation of TRPV1, TRPA1, and TRPV4 in different models of musculoskeletal pain was evaluated using pharmacological and genetic tools. All the studies detected the antinociceptive effect of respective antagonists or reduced nociception in knockout mice. CONCLUSION Hence, TRPV1, TRPV4, and TRPA1 blockers could potentially be utilized in the future for inducing analgesia in muscle hypersensitivity pathologies.
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Affiliation(s)
- Sabrina Qader Kudsi
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 97105-900 Santa Maria (RS), Brazil
| | - Fernanda Tibolla Viero
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 97105-900 Santa Maria (RS), Brazil
| | - Leonardo Gomes Pereira
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 97105-900 Santa Maria (RS), Brazil
| | - Gabriela Trevisan
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 97105-900 Santa Maria (RS), Brazil
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3
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Holloman JP, Dimas SH, Archambault AS, Filipello F, Du L, Feng J, Zhao Y, Bollman B, Piccio L, Steelman AJ, Hu H, Wu GF. Transient Receptor Potential Vanilloid 4-Dependent Microglial Function in Myelin Injury and Repair. Int J Mol Sci 2023; 24:17097. [PMID: 38069420 PMCID: PMC10706888 DOI: 10.3390/ijms242317097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/01/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
Microglia are found pathologically at all stages of multiple sclerosis (MS) lesion development and are hypothesized to contribute to both inflammatory injury and neuroprotection in the MS brain. Transient receptor potential vanilloid 4 (TRPV4) channels are widely expressed, play an important role as environmental sensors, and are involved in calcium homeostasis for a variety of cells. TRPV4 modulates myeloid cell phagocytosis in the periphery and microglial motility in the central nervous system. We hypothesized that TRPV4 deletion would alter microglia phagocytosis in vitro and lessen disease activity and demyelination in experimental autoimmune encephalitis (EAE) and cuprizone-induced demyelination. We found that genetic deletion of TRPV4 led to increased microglial phagocytosis in vitro but did not alter the degree of demyelination or remyelination in the cuprizone mouse model of MS. We also found no difference in disease in EAE following global or microglia-specific deletion of Trpv4. Additionally, lesioned and normal appearing white matter from MS brains exhibited similar TRPV4 expression compared to healthy brain tissue. Taken together, these findings indicate that TRPV4 modulates microglial activity but does not impact disease activity in mouse models of MS, suggesting a muted and/or redundant role in MS pathogenesis.
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Affiliation(s)
- Jameson P. Holloman
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO 63110, USA (F.F.)
| | - Sophia H. Dimas
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; (S.H.D.)
| | - Angela S. Archambault
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO 63110, USA (F.F.)
| | - Fabia Filipello
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO 63110, USA (F.F.)
| | - Lixia Du
- Department of Anesthesiology, The Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, MO 63110, USA (Y.Z.)
| | - Jing Feng
- Department of Anesthesiology, The Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, MO 63110, USA (Y.Z.)
| | - Yonghui Zhao
- Department of Anesthesiology, The Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, MO 63110, USA (Y.Z.)
| | - Bryan Bollman
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO 63110, USA (F.F.)
| | - Laura Piccio
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO 63110, USA (F.F.)
| | - Andrew J. Steelman
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; (S.H.D.)
- Department Neuroscience Program, Division of Nutritional Sciences, and Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Hongzhen Hu
- Department of Anesthesiology, The Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, MO 63110, USA (Y.Z.)
| | - Gregory F. Wu
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO 63110, USA (F.F.)
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
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4
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Moya-Gómez A, Font LP, Burlacu A, Alpizar YA, Cardonne MM, Brône B, Bronckaers A. Extremely Low-Frequency Electromagnetic Stimulation (ELF-EMS) Improves Neurological Outcome and Reduces Microglial Reactivity in a Rodent Model of Global Transient Stroke. Int J Mol Sci 2023; 24:11117. [PMID: 37446295 DOI: 10.3390/ijms241311117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Extremely low-frequency electromagnetic stimulation (ELF-EMS) was demonstrated to be significantly beneficial in rodent models of permanent stroke. The mechanism involved enhanced cerebrovascular perfusion and endothelial cell nitric oxide production. However, the possible effect on the neuroinflammatory response and its efficacy in reperfusion stroke models remains unclear. To evaluate ELF-EMS effectiveness and possible immunomodulatory response, we studied neurological outcome, behavior, neuronal survival, and glial reactivity in a rodent model of global transient stroke treated with 13.5 mT/60 Hz. Next, we studied microglial cells migration and, in organotypic hippocampal brain slices, we assessed neuronal survival and microglia reactivity. ELF-EMS improved the neurological score and behavior in the ischemia-reperfusion model. It also improved neuronal survival and decreased glia reactivity in the hippocampus, with microglia showing the first signs of treatment effect. In vitro ELF-EMS decreased (Lipopolysaccharide) LPS and ATP-induced microglia migration in both scratch and transwell assay. Additionally, in hippocampal brain slices, reduced microglial reactivity, improved neuronal survival, and modulation of inflammation-related markers was observed. Our study is the first to show that an EMF treatment has a direct impact on microglial migration. Furthermore, ELF-EMS has beneficial effects in an ischemia/reperfusion model, which indicates that this treatment has clinical potential as a new treatment against ischemic stroke.
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Affiliation(s)
- Amanda Moya-Gómez
- BIOMED, UHasselt, Agoralaan, 3590 Diepenbeek, Belgium
- Biomedical Engineering Department, Facultad de Ingeniería Informática, Telecomunicaciones y Biomédica, Universidad de Oriente, Santiago de Cuba 90 400, Cuba
| | - Lena Pérez Font
- Centro Nacional de Electromagnetismo Aplicado, Universidad de Oriente, Santiago de Cuba 90 400, Cuba
| | | | | | - Miriam Marañón Cardonne
- Biomedical Engineering Department, Facultad de Ingeniería Informática, Telecomunicaciones y Biomédica, Universidad de Oriente, Santiago de Cuba 90 400, Cuba
| | - Bert Brône
- BIOMED, UHasselt, Agoralaan, 3590 Diepenbeek, Belgium
| | - Annelies Bronckaers
- Biomedical Engineering Department, Facultad de Ingeniería Informática, Telecomunicaciones y Biomédica, Universidad de Oriente, Santiago de Cuba 90 400, Cuba
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5
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Tureckova J, Hermanova Z, Marchetti V, Anderova M. Astrocytic TRPV4 Channels and Their Role in Brain Ischemia. Int J Mol Sci 2023; 24:ijms24087101. [PMID: 37108263 PMCID: PMC10138480 DOI: 10.3390/ijms24087101] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/06/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Transient receptor potential cation channels subfamily V member 4 (TRPV4) are non-selective cation channels expressed in different cell types of the central nervous system. These channels can be activated by diverse physical and chemical stimuli, including heat and mechanical stress. In astrocytes, they are involved in the modulation of neuronal excitability, control of blood flow, and brain edema formation. All these processes are significantly impaired in cerebral ischemia due to insufficient blood supply to the tissue, resulting in energy depletion, ionic disbalance, and excitotoxicity. The polymodal cation channel TRPV4, which mediates Ca2+ influx into the cell because of activation by various stimuli, is one of the potential therapeutic targets in the treatment of cerebral ischemia. However, its expression and function vary significantly between brain cell types, and therefore, the effect of its modulation in healthy tissue and pathology needs to be carefully studied and evaluated. In this review, we provide a summary of available information on TRPV4 channels and their expression in healthy and injured neural cells, with a particular focus on their role in ischemic brain injury.
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Affiliation(s)
- Jana Tureckova
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
| | - Zuzana Hermanova
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
- Second Faculty of Medicine, Charles University, 84 V Uvalu, 150 06 Prague, Czech Republic
| | - Valeria Marchetti
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
- Second Faculty of Medicine, Charles University, 84 V Uvalu, 150 06 Prague, Czech Republic
| | - Miroslava Anderova
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
- Second Faculty of Medicine, Charles University, 84 V Uvalu, 150 06 Prague, Czech Republic
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Zhong X, Wang Y, Liu D, Liang Y, Liu W, Huang Y, Xie L, Cao W, Xu Y, Chen L. HC067047 Ameliorates Sepsis-associated Encephalopathy by Suppressing Endoplasmic Reticulum Stress and Oxidative Stress-Induced Pyroptosis in the Hippocampi of Mice. Neuroscience 2023; 517:117-127. [PMID: 36805006 DOI: 10.1016/j.neuroscience.2023.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/18/2023]
Abstract
Sepsis-associated encephalopathy (SAE) is a common neurological complication of sepsis and is characterized by hyperneuroinflammation. NLRP3 inflammasome-mediated pyroptosis can induce an inflammatory cascade response and plays a key role in SAE. TRPV4 is involved in the hyperinflammatory response associated with inflammation; however, whether TRPV4 inhibition might alleviate SAE-related brain damage is still unknown. Therefore, we aimed to investigate the role and mechanism of HC067047, a potent inhibitor of TRPV4, in hyperneuroinflammation and blood-brain barrier (BBB) dysfunction in a lipopolysaccharide (LPS)-induced SAE mouse model. We found that HC067047 administration significantly inhibited the expression of TRPV4 and p-CamkIIα in the hippocampi of SAE mice. Furthermore, HC067047 treatment attenuated LPS-induced endoplasmic reticulum (ER) stress and oxidative stress (OS), thus remarkably preventing NLRP3 inflammasome-mediated pyroptosis, as well as the expression of proinflammatory factors (IL-1β and IL-18). Additionally, we found that HC067047 selectively prevented pyroptosis in hippocampal cells, mainly the neurons, oligodendrocytes and the resident microglia. The disruption of BBB integrity in SAE mice was also rescued by HC067047 intervention. Thus, we can conclude that the TRPV4 inhibitor HC067047 could protect against hippocampal cell pyroptosis, which might be due to the attenuation of the NLRP3 inflammasome-mediated pyroptosis pathway caused by ER stress and OS. Our findings suggest a potential preventive role for HC067047 in SAE.
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Affiliation(s)
- Xiaolin Zhong
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Yajuan Wang
- Department of Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Dandan Liu
- Department of Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Yue Liang
- Department of Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - WenJia Liu
- Department of Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Yanmei Huang
- Department of Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Lihua Xie
- Department of Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Wenyu Cao
- Department of Human Anatomy, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Yang Xu
- Institute of Neuroscience, Hengyang Medical School, University of South China, Hengyang 421001 Hunan, China.
| | - Ling Chen
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China.
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7
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Yeo M, Zhang Q, Ding L, Shen X, Chen Y, Liedtke W. Spinal cord dorsal horn sensory gate in preclinical models of chemotherapy-induced painful neuropathy and contact dermatitis chronic itch becomes less leaky with Kcc2 gene expression-enhancing treatments. Front Mol Neurosci 2022; 15:911606. [PMID: 36504679 PMCID: PMC9731339 DOI: 10.3389/fnmol.2022.911606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 10/05/2022] [Indexed: 11/25/2022] Open
Abstract
Low intraneuronal chloride in spinal cord dorsal horn (SCDH) pain relay neurons is of critical relevance for physiological transmission of primary sensory afferents because low intraneuronal chloride dictates GABA-ergic and glycin-ergic neurotransmission to be inhibitory. If neuronal chloride rises to unphysiological levels, the primary sensory gate in the spinal cord dorsal horn becomes corrupted, with resulting behavioral hallmarks of hypersensitivity and allodynia, for example in pathological pain. Low chloride in spinal cord dorsal horn neurons relies on the robust gene expression of Kcc2 and sustained transporter function of the KCC2 chloride-extruding electroneutral transporter. Based on a recent report where we characterized the GSK3-inhibitory small molecule, kenpaullone, as a Kcc2 gene expression-enhancer that potently repaired diminished Kcc2 expression and KCC2 transporter function in SCDH pain relay neurons, we extend our recent findings by reporting (i) effective pain control in a preclinical model of taxol-induced painful peripheral neuropathy that was accomplished by topical application of a TRPV4/TRPA1 dual-inhibitory compound (compound 16-8), and was associated with the repair of diminished Kcc2 gene expression in the SCDH; and (ii) potent functioning of kenpaullone as an antipruritic in a DNFB contact dermatitis preclinical model. These observations suggest that effective peripheral treatment of chemotherapy-induced painful peripheral neuropathy impacts the pain-transmitting neural circuit in the SCDH in a beneficial manner by enhancing Kcc2 gene expression, and that chronic pruritus might be relayed in the primary sensory gate of the spinal cord, following similar principles as pathological pain, specifically relating to the critical functioning of Kcc2 gene expression and the KCC2 transporter function.
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Affiliation(s)
- Michele Yeo
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, United States
| | - Qiaojuan Zhang
- Departments of Neurology, Duke University Medical Center, Durham, NC, United States
| | - LeAnne Ding
- Departments of Neurology, Duke University Medical Center, Durham, NC, United States
| | - Xiangjun Shen
- Departments of Neurology, Duke University Medical Center, Durham, NC, United States
| | - Yong Chen
- Departments of Neurology, Duke University Medical Center, Durham, NC, United States,*Correspondence: Yong Chen
| | - Wolfgang Liedtke
- Departments of Neurology, Duke University Medical Center, Durham, NC, United States,Wolfgang Liedtke
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8
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Beeken J, Mertens M, Stas N, Kessels S, Aerts L, Janssen B, Mussen F, Pinto S, Vennekens R, Rigo JM, Nguyen L, Brône B, Alpizar YA. Acute inhibition of transient receptor potential vanilloid-type 4 cation channel halts cytoskeletal dynamism in microglia. Glia 2022; 70:2157-2168. [PMID: 35809029 DOI: 10.1002/glia.24243] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 01/04/2023]
Abstract
Microglia, the resident macrophages of the central nervous system, are highly motile cells that support brain development, provision neuronal signaling, and protect brain cells against damage. Proper microglial functioning requires constant cell movement and morphological changes. Interestingly, the transient receptor potential vanilloid 4 (TRPV4) channel, a calcium-permeable channel, is involved in hypoosmotic morphological changes of retinal microglia and regulates temperature-dependent movement of microglial cells both in vitro and in vivo. Despite the broad functions of TRPV4 and the recent findings stating a role for TRPV4 in microglial movement, little is known about how TRPV4 modulates cytoskeletal remodeling to promote changes of microglial motility. Here we show that acute inhibition of TRPV4, but not its constitutive absence in the Trpv4 KO cells, affects the morphology and motility of microglia in vitro. Using high-end confocal imaging techniques, we show a decrease in actin-rich filopodia and tubulin dynamics upon acute inhibition of TRPV4 in vitro. Furthermore, using acute brain slices we demonstrate that Trpv4 knockout microglia display lower ramification complexity, slower process extension speed and consequently smaller surveyed area. We conclude that TRPV4 inhibition triggers a shift in cytoskeleton remodeling of microglia influencing their migration and morphology.
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Affiliation(s)
- Jolien Beeken
- UHasselt, BIOMED, Diepenbeek, Belgium.,Université de Liège, GIGA-Stem-Cells, Liège, Belgium
| | | | | | | | | | | | | | - Silvia Pinto
- Laboratory of Ion Channel Research, VIB-KU Leuven, Leuven, Belgium
| | - Rudi Vennekens
- Laboratory of Ion Channel Research, VIB-KU Leuven, Leuven, Belgium
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9
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Tzanoulinou S, Musardo S, Contestabile A, Bariselli S, Casarotto G, Magrinelli E, Jiang YH, Jabaudon D, Bellone C. Inhibition of Trpv4 rescues circuit and social deficits unmasked by acute inflammatory response in a Shank3 mouse model of Autism. Mol Psychiatry 2022; 27:2080-2094. [PMID: 35022531 PMCID: PMC9126815 DOI: 10.1038/s41380-021-01427-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 12/08/2021] [Accepted: 12/23/2021] [Indexed: 12/14/2022]
Abstract
Mutations in the SHANK3 gene have been recognized as a genetic risk factor for Autism Spectrum Disorder (ASD), a neurodevelopmental disease characterized by social deficits and repetitive behaviors. While heterozygous SHANK3 mutations are usually the types of mutations associated with idiopathic autism in patients, heterozygous deletion of Shank3 gene in mice does not commonly induce ASD-related behavioral deficit. Here, we used in-vivo and ex-vivo approaches to demonstrate that region-specific neonatal downregulation of Shank3 in the Nucleus Accumbens promotes D1R-medium spiny neurons (D1R-MSNs) hyperexcitability and upregulates Transient Receptor Potential Vanilloid 4 (Trpv4) to impair social behavior. Interestingly, genetically vulnerable Shank3+/- mice, when challenged with Lipopolysaccharide to induce an acute inflammatory response, showed similar circuit and behavioral alterations that were rescued by acute Trpv4 inhibition. Altogether our data demonstrate shared molecular and circuit mechanisms between ASD-relevant genetic alterations and environmental insults, which ultimately lead to sociability dysfunctions.
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Affiliation(s)
- Stamatina Tzanoulinou
- grid.8591.50000 0001 2322 4988Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland ,grid.9851.50000 0001 2165 4204Present Address: Department of Biomedical Sciences (DSB), FBM, University of Lausanne, Lausanne, Switzerland
| | - Stefano Musardo
- grid.8591.50000 0001 2322 4988Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland
| | - Alessandro Contestabile
- grid.8591.50000 0001 2322 4988Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland
| | - Sebastiano Bariselli
- grid.8591.50000 0001 2322 4988Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland
| | - Giulia Casarotto
- grid.8591.50000 0001 2322 4988Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland
| | - Elia Magrinelli
- grid.8591.50000 0001 2322 4988Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland
| | - Yong-hui Jiang
- grid.47100.320000000419368710Department of Genetics, Yale University School of Medicine, New Haven, CT 06520 USA
| | - Denis Jabaudon
- grid.8591.50000 0001 2322 4988Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland
| | - Camilla Bellone
- Department of Fundamental Neuroscience, CMU, University of Geneva, Geneva, Switzerland.
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10
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Li W, Xu Y, Liu Z, Shi M, Zhang Y, Deng Y, Zhong X, Chen L, He J, Zeng J, Luo M, Cao W, Wan W. TRPV4 inhibitor HC067047 produces antidepressant-like effect in LPS-induced depression mouse model. Neuropharmacology 2021; 201:108834. [PMID: 34637786 DOI: 10.1016/j.neuropharm.2021.108834] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 10/05/2021] [Accepted: 10/07/2021] [Indexed: 01/07/2023]
Abstract
Inflammation is a crucial component that contributes to the pathogenesis of major depressive disorder. It has been revealed that the nonselective cation channel transient receptor potential vanilloid 4 (TRPV4) profoundly affects a variety of physiological processes, including inflammation. However, its roles and mechanisms in LPS-induced depression are still unclear. Here, for the first time, we found that there was a significant increase in TRPV4 in the hippocampus in a depression mouse model induced by LPS. TRPV4 inhibitor HC067047 or knockdown the hippocampal TRPV4 with TRPV4 shRNA could effectively rescue the aberrant behaviors. Furthermore, TRPV4 inhibitor HC067047 reduced the activation of astrocyte and microglia, decreased expression of CaMKII-NLRP3 inflammasome and increased the expression of neurogenesis marker DCX in the hippocampus. In addition, enhanced neuroinflammation in the serum was also reversed by TRPV4 inhibitor HC067047. Thus, we consider that TRPV4 has an important role in contributing to the depression-like behavior following LPS-induced systemic inflammation.
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Affiliation(s)
- Wei Li
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Yang Xu
- Institute of Neuroscience, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Zhenghai Liu
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Mengmeng Shi
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Yuan Zhang
- Department of Pathology, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Yingcheng Deng
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Xiaolin Zhong
- Institute of Clinical Medicine, The First Affiliated Hospital of University of South China, 421001, Hengyang, Hunan, China
| | - Ling Chen
- Institute of Clinical Medicine, The First Affiliated Hospital of University of South China, 421001, Hengyang, Hunan, China
| | - Jie He
- Department of Pathology, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Jiayu Zeng
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Mingying Luo
- Department of Anatomy & Histology & Embryology, Kunming Medical University, 650500, Kunming, Yunnan, China
| | - Wenyu Cao
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China.
| | - Wei Wan
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China; Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Hainan Medical University, 571199, Haikou, China.
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11
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Hoshi Y, Shibasaki K, Gailly P, Ikegaya Y, Koyama R. Thermosensitive receptors in neural stem cells link stress-induced hyperthermia to impaired neurogenesis via microglial engulfment. SCIENCE ADVANCES 2021; 7:eabj8080. [PMID: 34826234 PMCID: PMC8626080 DOI: 10.1126/sciadv.abj8080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Social stress impairs hippocampal neurogenesis and causes psychiatric disorders such as depression. Recent studies have highlighted the significance of increased body temperature in stress responses; however, whether and how social stress–induced hyperthermia affects hippocampal neurogenesis remains unknown. Here, using transgenic mice in which the thermosensitive transient receptor potential vanilloid 4 (TRPV4) is conditionally knocked out in Nestin-expressing neural stem cells (NSCs), we found that social defeat stress (SDS)–induced hyperthermia activates TRPV4 in NSCs in the dentate gyrus and thereby impairs hippocampal neurogenesis. Specifically, SDS activated TRPV4 in NSCs and induced the externalization of phosphatidylserine in NSCs, which was recognized by the brain-resident macrophage, microglia, and promoted the microglial engulfment of NSCs. SDS-induced impairment of hippocampal neurogenesis was ameliorated by NSC-specific knockout of TRPV4 or pharmacological removal of microglia. Thus, this study reveals a previously unknown role of thermosensitive receptors expressed by NSCs in stress responses.
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Affiliation(s)
- Yutaka Hoshi
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Koji Shibasaki
- Laboratory of Neurochemistry, Graduate School of Human Health Science, University of Nagasaki, Nagasaki 851-2195, Japan
| | - Philippe Gailly
- Laboratory of Cell Physiology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Yuji Ikegaya
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
- Institute for AI and Beyond, The University of Tokyo, Tokyo 113-0033, Japan
- Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita City, Osaka 565-0871, Japan
| | - Ryuta Koyama
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
- Corresponding author.
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12
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García-Rodríguez C, Bravo-Tobar ID, Duarte Y, Barrio LC, Sáez JC. Contribution of non-selective membrane channels and receptors in epilepsy. Pharmacol Ther 2021; 231:107980. [PMID: 34481811 DOI: 10.1016/j.pharmthera.2021.107980] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 12/14/2022]
Abstract
Overcoming refractory epilepsy's resistance to the combination of antiepileptic drugs (AED), mitigating side effects, and preventing sudden unexpected death in epilepsy are critical goals for therapy of this disorder. Current therapeutic strategies are based primarily on neurocentric mechanisms, overlooking the participation of astrocytes and microglia in the pathophysiology of epilepsy. This review is focused on a set of non-selective membrane channels (permeable to ions and small molecules), including channels and ionotropic receptors of neurons, astrocytes, and microglia, such as: the hemichannels formed by Cx43 and Panx1; the purinergic P2X7 receptors; the transient receptor potential vanilloid (TRPV1 and TRPV4) channels; calcium homeostasis modulators (CALHMs); transient receptor potential canonical (TRPC) channels; transient receptor potential melastatin (TRPM) channels; voltage-dependent anion channels (VDACs) and volume-regulated anion channels (VRACs), which all have in common being activated by epileptic activity and the capacity to exacerbate seizure intensity. Specifically, we highlight evidence for the activation of these channels/receptors during epilepsy including neuroinflammation and oxidative stress, discuss signaling pathways and feedback mechanisms, and propose the functions of each of them in acute and chronic epilepsy. Studying the role of these non-selective membrane channels in epilepsy and identifying appropriate blockers for one or more of them could provide complementary therapies to better alleviate the disease.
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Affiliation(s)
- Claudia García-Rodríguez
- Instituto de Neurociencia, Centro Interdisciplinario de Neurociencia de Valparaíso, Universidad de Valparaíso, Chile.
| | - Iván D Bravo-Tobar
- Instituto de Neurociencia, Centro Interdisciplinario de Neurociencia de Valparaíso, Universidad de Valparaíso, Chile
| | - Yorley Duarte
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Luis C Barrio
- Hospital Ramon y Cajal-IRYCIS, Centro de Tecnología Biomédica de la Universidad Politécnica, Madrid, Spain
| | - Juan C Sáez
- Instituto de Neurociencia, Centro Interdisciplinario de Neurociencia de Valparaíso, Universidad de Valparaíso, Chile.
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Deng Y, Li W, Niu L, Luo X, Li J, Zhang Y, Liu H, He J, Wan W. Amelioration of Scopolamine-induced Learning and Memory Impairment by the TRPV4 Inhibitor HC067047 in ICR Mice. Neurosci Lett 2021; 767:136209. [PMID: 34480999 DOI: 10.1016/j.neulet.2021.136209] [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: 05/08/2021] [Revised: 08/20/2021] [Accepted: 08/30/2021] [Indexed: 10/20/2022]
Abstract
Alzheimer's disease (AD) is one of the most common causes of neurodegenerative diseases in the elderly. Cholinergic dysfunction is one of the pathological hallmarks of AD and leads to learning and memory impairment. Transient receptor potential vanilloid 4(TRPV4), a nonselective cation channel, is involved in learning and memory functions. HC067047, a TRPV4 specific inhibitor, has been reported to protect neurons against cerebral ischemic injury and amyloid-β -(Aβ) 40-induced hippocampal cell death. However, whether HC067047 could improve scopolamine (SCP)-induced cognitive dysfunction in mice is still unknown. The aims of this study were to verify whether HC067047 could ameliorate the SCP-induced learning and memory impairments in mice and to elucidate its underlying mechanisms of action. In this study, we examined the neuroprotective effect of the HC067047 against cognitive dysfunction induced by SCP (5 mg/kg, i.p.), a muscarinic receptor antagonist. The results showed that administration of HC067047(10 mg/kg, i.p.) significantly ameliorated SCP-induced cognitive dysfunction as assessed by the novel place recognition test (NPRT) and novel object recognition test (NORT). In the Y-maze test, HC067047 significantly enhanced the time spent in the novel arm in SCP mice. To further investigate the molecular mechanisms underlying the neuroprotective effect of HC067047, expression of several proteins involved in apoptosis was examined. The results demonstrated that HC067047 treatment decreased the protein levels of proapoptotic proteins such as Bax and caspase-3 in the hippocampus of SCP mice. In addition, HC067047 enhanced expression of the neurogenesis marker DCX and improved levels of the mature neuronal marker NeuN in SCP mice. These findings suggest the neuroprotective potential of the TRPV4 inhibitor HC067047 for the management of dementia with learning and memory loss.
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Affiliation(s)
- Yingcheng Deng
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China
| | - Wei Li
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China
| | - Lei Niu
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China; Liuyang Traditional Chinese Medicine Hospital, 410300, Liuyang, Hunan, China
| | - Xianglin Luo
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China
| | - Jing Li
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China
| | - Yuan Zhang
- Department of Pathology, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China
| | - Hong Liu
- Department of Orthopedics, 922Hospital of PLA Joint Logistics Support Force
| | - Jie He
- Department of Pathology, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China
| | - Wei Wan
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, 421001 Hengyang, Hunan, China; China Key Laboratory Of Brain Science Research & Transformation In Tropical Environment Of Hainan Province, Hainan Medical University, 571199, Haikou, Hai nan China.
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14
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Zhang Q, Henry G, Chen Y. Emerging Role of Transient Receptor Potential Vanilloid 4 (TRPV4) Ion Channel in Acute and Chronic Itch. Int J Mol Sci 2021; 22:7591. [PMID: 34299208 PMCID: PMC8307539 DOI: 10.3390/ijms22147591] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/12/2021] [Accepted: 07/13/2021] [Indexed: 12/16/2022] Open
Abstract
Itch is a clinical problem that leaves many sufferers insufficiently treated, with over 20 million cases in the United States. This is due to incomplete understanding of its molecular, cellular, and cell-to-cell signaling mechanisms. Transient receptor potential (TRP) ion channels are involved in several sensory modalities including pain, vision, taste, olfaction, hearing, touch, and thermosensation, as well as itch. Relative to the extensive studies on TRPV1 and TRPA1 ion channels in itch modulation, TRPV4 has received relatively little research attention and its mechanisms have remained poorly understood until recently. TRPV4 is expressed in ganglion sensory neurons and a variety of skin cells. Growing evidence in the past few years strongly suggests that TRPV4 in these cells contributes to acute and chronic disease-associated itch. This review focuses on the current experimental evidence involving TRPV4 in itch under pathophysiological conditions and discusses its possible cellular and molecular mechanisms.
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Affiliation(s)
- Qiaojuan Zhang
- Department of Neurology, Duke University, Durham, NC 27710, USA; (Q.Z.); (G.H.)
| | - Gwendolyn Henry
- Department of Neurology, Duke University, Durham, NC 27710, USA; (Q.Z.); (G.H.)
| | - Yong Chen
- Department of Neurology, Duke University, Durham, NC 27710, USA; (Q.Z.); (G.H.)
- Department of Anesthesiology, Duke University, Durham, NC 27710, USA
- Department of Pathology, Duke University, Durham, NC 27710, USA
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Kärki T, Tojkander S. TRPV Protein Family-From Mechanosensing to Cancer Invasion. Biomolecules 2021; 11:1019. [PMID: 34356643 PMCID: PMC8301805 DOI: 10.3390/biom11071019] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/30/2021] [Accepted: 07/09/2021] [Indexed: 02/08/2023] Open
Abstract
Biophysical cues from the cellular microenvironment are detected by mechanosensitive machineries that translate physical signals into biochemical signaling cascades. At the crossroads of extracellular space and cell interior are located several ion channel families, including TRP family proteins, that are triggered by mechanical stimuli and drive intracellular signaling pathways through spatio-temporally controlled Ca2+-influx. Mechanosensitive Ca2+-channels, therefore, act as critical components in the rapid transmission of physical signals into biologically compatible information to impact crucial processes during development, morphogenesis and regeneration. Given the mechanosensitive nature of many of the TRP family channels, they must also respond to the biophysical changes along the development of several pathophysiological conditions and have also been linked to cancer progression. In this review, we will focus on the TRPV, vanilloid family of TRP proteins, and their connection to cancer progression through their mechanosensitive nature.
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Affiliation(s)
- Tytti Kärki
- Department of Applied Physics, School of Science, Aalto University, 00076 Espoo, Finland;
| | - Sari Tojkander
- Department of Veterinary Biosciences, Section of Pathology, University of Helsinki, 00014 Helsinki, Finland
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16
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Sun X, Kato H, Sato H, Torio M, Han X, Zhang Y, Hirofuji Y, Kato TA, Sakai Y, Ohga S, Fukumoto S, Masuda K. Impaired neurite development and mitochondrial dysfunction associated with calcium accumulation in dopaminergic neurons differentiated from the dental pulp stem cells of a patient with metatropic dysplasia. Biochem Biophys Rep 2021; 26:100968. [PMID: 33748438 PMCID: PMC7960789 DOI: 10.1016/j.bbrep.2021.100968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 12/22/2020] [Accepted: 02/22/2021] [Indexed: 12/15/2022] Open
Abstract
Transient receptor potential vanilloid member 4 (TRPV4) is a Ca2+ permeable nonselective cation channel, and mutations in the TRPV4 gene cause congenital skeletal dysplasias and peripheral neuropathies. Although TRPV4 is widely expressed in the brain, few studies have assessed the pathogenesis of TRPV4 mutations in the brain. We aimed to elucidate the pathological associations between a specific TRPV4 mutation and neurodevelopmental defects using dopaminergic neurons (DNs) differentiated from dental pulp stem cells (DPSCs). DPSCs were isolated from a patient with metatropic dysplasia and multiple neuropsychiatric symptoms caused by a gain-of-function TRPV4 mutation, c.1855C>T (p.L619F). The mutation was corrected by CRISPR/Cas9 to obtain isogenic control DPSCs. Mutant DPSCs differentiated into DNs without undergoing apoptosis; however, neurite development was significantly impaired in mutant vs. control DNs. Mutant DNs also showed accumulation of mitochondrial Ca2+ and reactive oxygen species, low adenosine triphosphate levels despite a high mitochondrial membrane potential, and lower peroxisome proliferator-activated receptor gamma coactivator 1-alpha expression and mitochondrial content. These results suggested that the persistent Ca2+ entry through the constitutively activated TRPV4 might perturb the adaptive coordination of multiple mitochondrial functions, including oxidative phosphorylation, redox control, and biogenesis, required for dopaminergic circuit development in the brain. Thus, certain mutations in TRPV4 that are associated with skeletal dysplasia might have pathogenic effects on brain development, and mitochondria might be a potential therapeutic target to alleviate the neuropsychiatric symptoms of TRPV4-related diseases.
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Key Words
- ATP, adenosine triphosphate
- DN, dopaminergic neuron
- DPSC, dental pulp stem cell
- Dental pulp stem cells
- Dopaminergic neuron
- MD, metatropic dysplasia
- MPP, mitochondrial membrane potential
- Metatropic dysplasia
- Mitochondria
- NURR1, nuclear receptor related 1
- PGC-1α, peroxisome proliferator-activated receptor gamma coactivator 1-alpha
- ROS, reactive oxygen species
- RPL13A, 60S ribosomal protein L13a
- Reactive oxygen species
- SOD, superoxide dismutase
- TRPV4, transient receptor potential vanilloid member 4
- Transient receptor potential vanilloid 4
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Affiliation(s)
- Xiao Sun
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Hiroki Kato
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Hiroshi Sato
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Michiko Torio
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Xu Han
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Yu Zhang
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Yuta Hirofuji
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Takahiro A Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Satoshi Fukumoto
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Keiji Masuda
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
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17
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Chaigne S, Cardouat G, Louradour J, Vaillant F, Charron S, Sacher F, Ducret T, Guinamard R, Vigmond E, Hof T. Transient receptor potential vanilloid 4 channel participates in mouse ventricular electrical activity. Am J Physiol Heart Circ Physiol 2021; 320:H1156-H1169. [PMID: 33449852 DOI: 10.1152/ajpheart.00497.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 01/06/2021] [Indexed: 12/25/2022]
Abstract
The TRPV4 channel is a calcium-permeable channel (PCa/PNa ∼ 10). Its expression has been reported in ventricular myocytes, where it is involved in several cardiac pathological mechanisms. In this study, we investigated the implication of TRPV4 in ventricular electrical activity. Left ventricular myocytes were isolated from trpv4+/+ and trpv4-/- mice. TRPV4 membrane expression and its colocalization with L-type calcium channels (Cav1.2) was confirmed using Western blot biotinylation, immunoprecipitation, and immunostaining experiments. Then, electrocardiograms (ECGs) and patch-clamp recordings showed shortened QTc and action potential (AP) duration in trpv4-/- compared with trpv4+/+ mice. Thus, TRPV4 activator GSK1016790A produced a transient and dose-dependent increase in AP duration at 90% of repolarization (APD90) in trpv4+/+ but not in trpv4-/- myocytes or when combined with TRPV4 inhibitor GSK2193874 (100 nM). Hence, GSK1016790A increased calcium transient (CaT) amplitude in trpv4+/+ but not in trpv4-/- myocytes, suggesting that TRPV4 carries an inward Ca2+ current in myocytes. Conversely, TRPV4 inhibitor GSK2193874 (100 nM) alone reduced APD90 in trpv4+/+ but not in trpv4-/- myocytes, suggesting that TRPV4 prolongs AP duration in basal condition. Finally, introducing TRPV4 parameters in a mathematical model predicted the development of an inward TRPV4 current during repolarization that increases AP duration and CaT amplitude, in accord with what was found experimentally. This study shows for the first time that TRPV4 modulates AP and QTc durations. It would be interesting to evaluate whether TRPV4 could be involved in long QT-mediated ventricular arrhythmias.NEW & NOTEWORTHY Transient receptor potential vanilloid 4 (TRPV4) is expressed at the membrane of mouse ventricular myocytes and colocalizes with non-T-tubular L-type calcium channels. Deletion of trpv4 gene in mice results in shortened QT interval on electrocardiogram and reduced action potential duration of ventricular myocytes. Pharmacological activation of TRPV4 channel leads to increased action potential duration and increased calcium transient amplitude in trpv4-/- but not in trpv4-/- ventricular myocytes. To the contrary, TRPV4 channel pharmacological inhibition reduces action potential duration in trpv4+/+ but not in trpv4-/- myocytes. Integration of TRPV4 channel in a computational model of mouse action potential shows that the channel carries an inward current contributing to slowing down action potential repolarization and to increase calcium transient amplitude, similarly to what is observed experimentally. This study highlights for the first time the involvement of TRPV4 channel in ventricular electrical activity.
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Affiliation(s)
- Sebastien Chaigne
- Instituts hospitalo-universitaires, L'Institut de Rythmologie et Modélisation Cardiaque, Fondation Bordeaux Université, Bordeaux, France
- Electrophysiology and Ablation Unit, Bordeaux University Hospital, Pessac, France
| | - Guillaume Cardouat
- Centre de recherche Cardio-Thoracique de Bordeaux, Institut national de la santé et de la recherche médicale, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Université Bordeaux, Bordeaux, France
| | - Julien Louradour
- Instituts hospitalo-universitaires, L'Institut de Rythmologie et Modélisation Cardiaque, Fondation Bordeaux Université, Bordeaux, France
| | - Fanny Vaillant
- Instituts hospitalo-universitaires, L'Institut de Rythmologie et Modélisation Cardiaque, Fondation Bordeaux Université, Bordeaux, France
| | - Sabine Charron
- Instituts hospitalo-universitaires, L'Institut de Rythmologie et Modélisation Cardiaque, Fondation Bordeaux Université, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Institut national de la santé et de la recherche médicale, Bordeaux, France
| | - Frederic Sacher
- Centre de recherche Cardio-Thoracique de Bordeaux, Université Bordeaux, Bordeaux, France
| | - Thomas Ducret
- Centre de recherche Cardio-Thoracique de Bordeaux, Institut national de la santé et de la recherche médicale, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Université Bordeaux, Bordeaux, France
| | - Romain Guinamard
- Signalisation, Electrophysiologie et Imagerie des lésions d'Ischémie-Reperfusion Myocardique, EA4650 Université Caen Normandie, Caen, France
| | - Edward Vigmond
- Instituts hospitalo-universitaires, L'Institut de Rythmologie et Modélisation Cardiaque, Fondation Bordeaux Université, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Université Bordeaux, Bordeaux, France
| | - Thomas Hof
- Instituts hospitalo-universitaires, L'Institut de Rythmologie et Modélisation Cardiaque, Fondation Bordeaux Université, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Université Bordeaux, Bordeaux, France
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Maiolo L, Guarino V, Saracino E, Convertino A, Melucci M, Muccini M, Ambrosio L, Zamboni R, Benfenati V. Glial Interfaces: Advanced Materials and Devices to Uncover the Role of Astroglial Cells in Brain Function and Dysfunction. Adv Healthc Mater 2021; 10:e2001268. [PMID: 33103375 DOI: 10.1002/adhm.202001268] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/06/2020] [Indexed: 12/13/2022]
Abstract
Research over the past four decades has highlighted the importance of certain brain cells, called glial cells, and has moved the neurocentric vision of structure, function, and pathology of the nervous system toward a more holistic perspective. In this view, the demand for technologies that are able to target and both selectively monitor and control glial cells is emerging as a challenge across neuroscience, engineering, chemistry, and material science. Frequently neglected or marginally considered as a barrier to be overcome between neural implants and neuronal targets, glial cells, and in particular astrocytes, are increasingly considered as active players in determining the outcomes of device implantation. This review provides a concise overview not only of the previously established but also of the emerging physiological and pathological roles of astrocytes. It also critically discusses the most recent advances in biomaterial interfaces and devices that interact with glial cells and thus have enabled scientists to reach unprecedented insights into the role of astroglial cells in brain function and dysfunction. This work proposes glial interfaces and glial engineering as multidisciplinary fields that have the potential to enable significant advancement of knowledge surrounding cognitive function and acute and chronic neuropathologies.
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Affiliation(s)
- Luca Maiolo
- Consiglio Nazionale delle Ricerche Istituto per la Microelettronica e i Microsistemi Via del Fosso del Cavaliere n.100 Roma 00133 Italy
| | - Vincenzo Guarino
- Consiglio Nazionale delle Ricerche Istituto per i Polimeri Compositi e Biomateriali Viale J.F. Kennedy 54, Mostra d'Oltremare, Pad 20 Napoli 80125 Italy
| | - Emanuela Saracino
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
| | - Annalisa Convertino
- Consiglio Nazionale delle Ricerche Istituto per la Microelettronica e i Microsistemi Via del Fosso del Cavaliere n.100 Roma 00133 Italy
| | - Manuela Melucci
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
| | - Michele Muccini
- Consiglio Nazionale delle Ricerche Istituto per la Studio dei Materiali Nanostrutturati via P. Gobetti 101 Bologna 40129 Italy
| | - Luigi Ambrosio
- Consiglio Nazionale delle Ricerche Istituto per i Polimeri Compositi e Biomateriali Viale J.F. Kennedy 54, Mostra d'Oltremare, Pad 20 Napoli 80125 Italy
| | - Roberto Zamboni
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
| | - Valentina Benfenati
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
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19
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Shibata M, Tang C. Implications of Transient Receptor Potential Cation Channels in Migraine Pathophysiology. Neurosci Bull 2021; 37:103-116. [PMID: 32870468 PMCID: PMC7811976 DOI: 10.1007/s12264-020-00569-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/11/2020] [Indexed: 12/19/2022] Open
Abstract
Migraine is a common and debilitating headache disorder. Although its pathogenesis remains elusive, abnormal trigeminal and central nervous system activity is likely to play an important role. Transient receptor potential (TRP) channels, which transduce noxious stimuli into pain signals, are expressed in trigeminal ganglion neurons and brain regions closely associated with the pathophysiology of migraine. In the trigeminal ganglion, TRP channels co-localize with calcitonin gene-related peptide, a neuropeptide crucially implicated in migraine pathophysiology. Many preclinical and clinical data support the roles of TRP channels in migraine. In particular, activation of TRP cation channel V1 has been shown to regulate calcitonin gene-related peptide release from trigeminal nerves. Intriguingly, several effective anti-migraine therapies, including botulinum neurotoxin type A, affect the functions of TRP cation channels. Here, we discuss currently available data regarding the roles of major TRP cation channels in the pathophysiology of migraine and the therapeutic applicability thereof.
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Affiliation(s)
- Mamoru Shibata
- Department of Neurology, Keio University School of Medicine, Tokyo, 160-8582, Japan.
- Department of Neurology, Tokyo Dental College Ichikawa General Hospital, Chiba, 272-8513, Japan.
| | - Chunhua Tang
- Department of Neurology, Keio University School of Medicine, Tokyo, 160-8582, Japan
- Department of Neurology and Center for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
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20
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Hochstetler AE, Smith HM, Preston DC, Reed MM, Territo PR, Shim JW, Fulkerson D, Blazer-Yost BL. TRPV4 antagonists ameliorate ventriculomegaly in a rat model of hydrocephalus. JCI Insight 2020; 5:137646. [PMID: 32938829 PMCID: PMC7526552 DOI: 10.1172/jci.insight.137646] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 08/19/2020] [Indexed: 11/27/2022] Open
Abstract
Hydrocephalus is a serious condition that impacts patients of all ages. The standards of care are surgical options to divert, or inhibit production of, cerebrospinal fluid; to date, there are no effective pharmaceutical treatments, to our knowledge. The causes vary widely, but one commonality of this condition is aberrations in salt and fluid balance. We have used a genetic model of hydrocephalus to show that ventriculomegaly can be alleviated by inhibition of the transient receptor potential vanilloid 4, a channel that is activated by changes in osmotic balance, temperature, pressure and inflammatory mediators. The TRPV4 antagonists do not appear to have adverse effects on the overall health of the WT or hydrocephalic animals. Two distinct TRPV4 antagonists ameliorate ventriculomegaly in a genetic rat model of severe postnatal hydrocephalus, with no apparent adverse effects on animals.
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Affiliation(s)
| | - Hillary M Smith
- Department of Biology, Indiana University, Purdue University, Indianapolis, Indiana, USA
| | - Daniel C Preston
- Department of Biology, Indiana University, Purdue University, Indianapolis, Indiana, USA
| | - Makenna M Reed
- Department of Biology, Indiana University, Purdue University, Indianapolis, Indiana, USA
| | - Paul R Territo
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Joon W Shim
- Department of Biology, Indiana University, Purdue University, Indianapolis, Indiana, USA
| | | | - Bonnie L Blazer-Yost
- Department of Biology, Indiana University, Purdue University, Indianapolis, Indiana, USA
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21
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Rosenkranz SC, Shaposhnykov A, Schnapauff O, Epping L, Vieira V, Heidermann K, Schattling B, Tsvilovskyy V, Liedtke W, Meuth SG, Freichel M, Gelderblom M, Friese MA. TRPV4-Mediated Regulation of the Blood Brain Barrier Is Abolished During Inflammation. Front Cell Dev Biol 2020; 8:849. [PMID: 32974355 PMCID: PMC7481434 DOI: 10.3389/fcell.2020.00849] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/07/2020] [Indexed: 12/18/2022] Open
Abstract
Blood-brain barrier (BBB) dysfunction is critically involved in determining the extent of several central nervous systems (CNS) pathologies and here in particular neuroinflammatory conditions. Inhibiting BBB breakdown could reduce the level of vasogenic edema and the number of immune cells invading the CNS, thereby counteracting neuronal injury. Transient receptor potential (TRP) channels have an important role as environmental sensors and constitute attractive therapeutic targets that are involved in calcium homeostasis during pathologies of the CNS. Transient receptor potential vanilloid 4 (TRPV4) is a calcium permeable, non-selective cation channel highly expressed in endothelial cells. As it is involved in the regulation of the blood brain barrier permeability and consequently cerebral edema formation, we anticipated a regulatory role of TRPV4 in CNS inflammation and subsequent neuronal damage. Here, we detected an increase in transendothelial resistance in mouse brain microvascular endothelial cells (MbMECs) after treatment with a selective TRPV4 inhibitor. However, this effect was abolished after the addition of IFNγ and TNFα indicating that inflammatory conditions override TRPV4-mediated permeability. Accordingly, we did not observe a protection of Trpv4-deficient mice when compared to wildtype controls in a preclinical model of multiple sclerosis, experimental autoimmune encephalomyelitis (EAE), and no differences in infarct sizes following transient middle cerebral artery occlusion (tMCAO), the experimental stroke model, which leads to an acute postischemic inflammatory response. Furthermore, Evans Blue injections did not show differences in alterations of the blood brain barrier (BBB) permeability between genotypes in both animal models. Together, TRPV4 does not regulate brain microvascular endothelial permeability under inflammation.
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Affiliation(s)
- Sina C Rosenkranz
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Artem Shaposhnykov
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Oliver Schnapauff
- Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Lisa Epping
- Klinik für Neurologie mit Institut für Translationale Neurologie, Universität Münster, Münster, Germany
| | - Vanessa Vieira
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Karsten Heidermann
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Benjamin Schattling
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | | | - Wolfgang Liedtke
- Departments of Neurology, Anesthesiology and Neurobiology, Duke University Medical Center, Durham, NC, United States
| | - Sven G Meuth
- Klinik für Neurologie mit Institut für Translationale Neurologie, Universität Münster, Münster, Germany
| | - Marc Freichel
- Pharmakologisches Institut, Universität Heidelberg, Heidelberg, Germany
| | - Mathias Gelderblom
- Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Manuel A Friese
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
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22
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Zhang N, Xing Y, Yu Y, Liu C, Jin B, Huo L, Kong D, Yang Z, Zhang X, Zheng R, Jia Z, Kang L, Zhang W. Influence of human amylin on the membrane stability of rat primary hippocampal neurons. Aging (Albany NY) 2020; 12:8923-8938. [PMID: 32463790 PMCID: PMC7288967 DOI: 10.18632/aging.103105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/09/2020] [Indexed: 04/09/2023]
Abstract
The two most common aging-related diseases, Alzheimer's disease and type 2 diabetes mellitus, are associated with accumulation of amyloid proteins (β-amyloid and amylin, respectively). This amylin aggregation is reportedly cytotoxic to neurons. We found that aggregation of human amylin (hAmylin) induced neuronal apoptosis without obvious microglial infiltration in vivo. High concentrations of hAmylin irreversibly aggregated on the surface of the neuronal plasma membrane. Long-term incubation with hAmylin induced morphological changes in neurons. Moreover, hAmylin permeabilized the neuronal membrane within 1 min in a manner similar to Triton X-100, allowing impermeable fluorescent antibodies to enter the neurons and stain intracellular antigens. hAmylin also permeabilized the cell membrane of astrocytes, though more slowly. Under scanning electron microscopy, we observed that hAmylin destroyed the integrity of the cell membranes of both neurons and astrocytes. Additionally, it increased intracellular reactive oxygen species generation and reduced the mitochondrial membrane potential. Thus, by aggregating on the surface of neurons, hAmylin impaired the cell membrane integrity, induced reactive oxygen species production, reduced the mitochondrial membrane potential, and ultimately induced neuronal apoptosis.
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Affiliation(s)
- Nan Zhang
- Central Laboratory, First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, Hebei, China
| | - Yuan Xing
- Department of Neurology, First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Brain Aging and Cognitive Neuroscience Key Laboratory of Hebei Province, Shijiazhuang, Hebei, China
| | - Yongzhou Yu
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chao Liu
- Department of Laboratory Animal Science, Hebei Medical University, Hebei Key Lab of Laboratory Animal Science, Shijiazhuang, Hebei, China
| | - Baohua Jin
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lifang Huo
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Dezhi Kong
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Zuxiao Yang
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiangjian Zhang
- Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ruimao Zheng
- Department of Anatomy, Histology and Embryology, Health Science Center, Neuroscience Research Institute, Key Laboratory for Neuroscience of the Ministry of Education, Key Laboratory for Neuroscience of the National Health Commission, Peking University, Beijing, China
| | - Zhanfeng Jia
- Department of Pharmacology, The Key Laboratory of New Drug Pharmacology and Toxicology, Center for Innovative Drug Research and Evaluation, Institute of Medical Science and Health, The Key Laboratory of Neural and Vascular Biology Ministry of Education, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lin Kang
- Department of Endocrinology, The Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital, Clinical Medical Research Center, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
| | - Wei Zhang
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
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23
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Tsushima H, Mori-Kawabe M. Central Transient Receptor Potential Vanilloid 4 Contributes to Systemic Water Homeostasis through Urinary Excretion. Biol Pharm Bull 2019; 42:1877-1882. [DOI: 10.1248/bpb.b19-00409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiromi Tsushima
- Laboratory of Pharmacology, College of Pharmacy, Kinjo Gakuin University
| | - Mayumi Mori-Kawabe
- Department of Cellular and Molecular Pharmacology, Nagoya City University Graduate School of Medical Sciences
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24
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Huang X, Hu Y, Zhao L, Gu B, Zhu R, Li Y, Yang Y, Han T, Yu J, Mu L, Han P, Li C, Zhang W, Hu Y. TRPV4 plays an important role in rat prefrontal cortex changes induced by acute hypoxic exercise. Saudi J Biol Sci 2019; 26:1194-1206. [PMID: 31516349 PMCID: PMC6734159 DOI: 10.1016/j.sjbs.2019.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/29/2019] [Accepted: 06/02/2019] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE This study aims to investigate the effects of TRPV4 on acute hypoxic exercise-induced central fatigue, in order to explore the mechanism in central for exercise capacity decline of athletes in the early stage of altitude training. METHODS 120 male Wistar rats were randomly divided into 12 groups: 4 normoxia groups (quiet group, 5-level group, 8-level group, exhausted group), 4 groups at simulated 2500 m altitude (grouping as before), 4 groups at simulated 4500 m altitude (grouping as before), 10 in each group. With incremental load movement, materials were drawn corresponding to the load. Intracellular calcium ion concentration was measured by HE staining, enzyme-linked immunosorbent assay, immunohistochemistry, RT-qPCR, Fluo-4/AM and Fura-2/AM fluorescence staining. RESULTS (1) Hypoxic 2-5 groups showed obvious venous congestion, with symptoms similar to normoxia-8 group; Hypoxic 2-8 groups showed meningeal loosening edema, infra-meningeal venous congestion, with symptoms similar to normoxia-exhausted group and hypoxic 1-exhaused group. (2) For 5,6-EET, regardless of normoxic or hypoxic environment, significant or very significant differences existed between each exercise load group (normoxic - 5 level 20.58 ± 0.66 pg/mL, normoxic - 8 level 23.15 ± 0.46 pg/mL, normoxic - exhausted 26.66 ± 0.71 pg/mL; hypoxic1-5 level 21.72 ± 0.43 pg/mL, hypoxic1-8 level 24.73 ± 0.69 pg/mL, hypoxic 1-exhausted 28.68 ± 0.48 pg/mL; hypoxic2-5 level 22.75 ± 0.20 pg/mL, hypoxic2-8 level 25.62 ± 0.39 pg/mL, hypoxic 2-exhausted 31.03 ± 0.41 pg/mL) and quiet group in the same environment(normoxic-quiet 18.12 ± 0.65 pg/mL, hypoxic 1-quiet 19.94 ± 0.43 pg/mL, hypoxic 2-quiet 21.72 ± 0.50 pg/mL). The 5,6-EET level was significantly or extremely significantly increased in hypoxic 1 environment and hypoxic 2 environment compared with normoxic environment under the same load. (3) With the increase of exercise load, expression of TRPV4 in the rat prefrontal cortex was significantly increased; hypoxic exercise groups showed significantly higher TRPV4 expression than the normoxic group. (4) Calcium ion concentration results showed that in the three environments, 8 level group (normoxic-8 190.93 ± 6.11 nmol/L, hypoxic1-8 208.92 ± 6.20 nmol/L, hypoxic2-8 219.13 ± 4.57 nmol/L) showed very significant higher concentration compared to quiet state in the same environment (normoxic-quiet 107.11 ± 0.49 nmol/L, hypoxic 1-quiet 128.48 ± 1.51 nmol/L, hypoxic 2-quiet 171.71 ± 0.84 nmol/L), and the exhausted group in the same environment (normoxic-exhausted 172.51 ± 3.30 nmol/L, hypoxic 1-exhausted 164.54 ± 6.01 nmol/L, hypoxic 2-exhausted 154.52 ± 1.80 nmol/L) had significant lower concentration than 8-level group; hypoxic2-8 had significant higher concentration than normoxic-8. CONCLUSION Acute hypoxic exercise increases the expression of TRPV4 channel in the prefrontal cortex of the brain. For a lower ambient oxygen concentration, expression of TRPV4 channel is higher, suggesting that TRPV4 channel may be one important mechanism involved in calcium overload in acute hypoxic exercise.
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Affiliation(s)
- Xing Huang
- School of Kinesiology and Health, Capital University of Physical
Education and Sports, Beijing 100191, China
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Yanxin Hu
- College of Veterinary Medicine, China Agricultural University, Beijing
100193, China
| | - Li Zhao
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Boya Gu
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Rongxin Zhu
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Yan Li
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Yun Yang
- School of Kinesiology and Health, Capital University of Physical
Education and Sports, Beijing 100191, China
| | - Tianyu Han
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Jiabei Yu
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Lianwei Mu
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Peng Han
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Cui Li
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Weijia Zhang
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
| | - Yang Hu
- School of Sport Science, Beijing Sport University, Beijing 100084,
China
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25
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The structural changes of the mutated ankyrin repeat domain of the human TRPV4 channel alter its ATP binding ability. J Mech Behav Biomed Mater 2019; 101:103407. [PMID: 31493693 DOI: 10.1016/j.jmbbm.2019.103407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/23/2019] [Accepted: 08/24/2019] [Indexed: 11/20/2022]
Abstract
The transient receptor potential (TRP) channel TRPV4 is a calcium-permeable cation channel protein which plays a mechanosensory and osmosensory role in several musculoskeletal tissues. Previous studies have shown that some specific mutations in the ankyrin repeat domain (ARD) of TRPV4 can reduce channel activity and further cause the osteoarthropathy related disease. Mutations in this region probably influence the constitutive activity of the channel, which mainly regulated by the binding of a small ligand such as adenosine triphosphate (ATP). These findings suggest that it is crucial to understand the fundamental mechanisms regulated by chemical ligands such as ATP binding with the ankyrin repeat domain (ARD) of TRPV4. However, how these mutations at the molecular level resulting in the related diseases are still unclear. Here we use full atomistic simulations to investigate the mutation induced conformational changes and ATP binding ability differences of TRPV4-ARD. Conformation characteristics of different mutations of TRPV4-ARD are explored. Optimal communication paths are studied to explain how a point mutation away from aim region (Finger 3) can cause a significant alteration on the conformation. We identify two molecular mechanisms through the conformation of Finger 3 and through alter the ATP binding mechanism correspondently to explain these unknowns. Our study provides fundamental insights into the mutation induced structural changes of the TRPV4-ARD and helps to explain how the mutations alter the ATP binding ability of the TRPV4-ARD.
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26
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Morrison HW, Filosa JA. Stroke and the neurovascular unit: glial cells, sex differences, and hypertension. Am J Physiol Cell Physiol 2019; 316:C325-C339. [PMID: 30601672 DOI: 10.1152/ajpcell.00333.2018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A functional neurovascular unit (NVU) is central to meeting the brain's dynamic metabolic needs. Poststroke damage to the NVU within the ipsilateral hemisphere ranges from cell dysfunction to complete cell loss. Thus, understanding poststroke cell-cell communication within the NVU is of critical importance. Loss of coordinated NVU function exacerbates ischemic injury. However, particular cells of the NVU (e.g., astrocytes) and those with ancillary roles (e.g., microglia) also contribute to repair mechanisms. Epidemiological studies support the notion that infarct size and recovery outcomes are heterogeneous and greatly influenced by modifiable and nonmodifiable factors such as sex and the co-morbid condition common to stroke: hypertension. The mechanisms whereby sex and hypertension modulate NVU function are explored, to some extent, in preclinical laboratory studies. We present a review of the NVU in the context of ischemic stroke with a focus on glial contributions to NVU function and dysfunction. We explore the impact of sex and hypertension as modifiable and nonmodifiable risk factors and the underlying cellular mechanisms that may underlie heterogeneous stroke outcomes. Most of the preclinical investigative studies of poststroke NVU dysfunction are carried out primarily in male stroke models lacking underlying co-morbid conditions, which is very different from the human condition. As such, the evolution of translational medicine to target the NVU for improved stroke outcomes remains elusive; however, it is attainable with further research.
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27
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Diaz JR, Kim KJ, Brands MW, Filosa JA. Augmented astrocyte microdomain Ca 2+ dynamics and parenchymal arteriole tone in angiotensin II-infused hypertensive mice. Glia 2018; 67:551-565. [PMID: 30506941 DOI: 10.1002/glia.23564] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 11/09/2022]
Abstract
Hypertension is an important contributor to cognitive decline but the underlying mechanisms are unknown. Although much focus has been placed on the effect of hypertension on vascular function, less is understood of its effects on nonvascular cells. Because astrocytes and parenchymal arterioles (PA) form a functional unit (neurovascular unit), we tested the hypothesis that hypertension-induced changes in PA tone concomitantly increases astrocyte Ca2+ . We used cortical brain slices from 8-week-old mice to measure myogenic responses from pressurized and perfused PA. Chronic hypertension was induced in mice by 28-day angiotensin II (Ang II) infusion; PA resting tone and myogenic responses increased significantly. In addition, chronic hypertension significantly increased spontaneous Ca2+ events within astrocyte microdomains (MD). Similarly, a significant increase in astrocyte Ca2+ was observed during PA myogenic responses supporting enhanced vessel-to-astrocyte signaling. The transient potential receptor vanilloid 4 (TRPV4) channel, expressed in astrocyte processes in contact with blood vessels, namely endfeet, respond to hemodynamic stimuli such as increased pressure/flow. Supporting a role for TRPV4 channels in aberrant astrocyte Ca2+ dynamics in hypertension, cortical astrocytes from hypertensive mice showed augmented TRPV4 channel expression, currents and Ca2+ responses to the selective channel agonist GSK1016790A. In addition, pharmacological TRPV4 channel blockade or genetic deletion abrogated enhanced hypertension-induced increases in PA tone. Together, these data suggest chronic hypertension increases PA tone and Ca2+ events within astrocytes MD. We conclude that aberrant Ca2+ events in astrocyte constitute an early event toward the progression of cognitive decline.
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Affiliation(s)
| | - Ki Jung Kim
- Department of Physiology, Augusta University, Augusta, Georgia
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28
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TRPV4 channels stimulate Ca 2+-induced Ca 2+ release in mouse neurons and trigger endoplasmic reticulum stress after intracerebral hemorrhage. Brain Res Bull 2018; 146:143-152. [PMID: 30508606 DOI: 10.1016/j.brainresbull.2018.11.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 10/24/2018] [Accepted: 11/29/2018] [Indexed: 01/30/2023]
Abstract
Individuals with intracerebral hemorrhage (ICH) suffer varying degrees of neurological dysfunction as a result of neuronal apoptosis, and thus, maintenance of neuronal survival may be crucial to prevent ICH brain injury. Here, we report that the expression of transient receptor potential vanilloid 4 (TRPV4) was upregulated in mouse neurons after ICH. The selective TRPV4 agonist GSK1016790 A aggravated neuronal death whereas the TRPV4 antagonist HC-067047 promoted neuronal survival after ICH. We found that GSK1016790 A triggered Ca2+ signals that were amplified and propagated by Ca2+-induced Ca2+ release (CICR) from the endoplasmic reticulum (ER) in the neurons. ICH recruited inositol triphosphate receptors (IP3Rs) into the TRPV4 protein complex, which positively regulated the activity of TRPV4 channels. Excessive activation of TRPV4 channels destroyed Ca2+ homeostasis and induced ER unfolded protein response (UPR). Blocking TRPV4 receptors decreased UPR, inhibited the PERK-CHOP-Bcl-2 signaling pathway and increased neuron survival. Overall, these results suggested that overactivation of TRPV4 channels after ICH ledto the destruction of Ca2+ homeostasis, which in turn caused UPR and neural apoptosis. Inhibition of TRPV4 channels is a promising therapy to promote neurons recover, and to ameliorate disability after ICH.
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29
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Ovsepian SV, O'Leary VB, Zaborszky L, Ntziachristos V, Dolly JO. Amyloid Plaques of Alzheimer's Disease as Hotspots of Glutamatergic Activity. Neuroscientist 2018; 25:288-297. [PMID: 30051750 DOI: 10.1177/1073858418791128] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Deposition of amyloid plaques in limbic and associative cortices is amongst the most recognized histopathologic hallmarks of Alzheimer's disease. Despite decades of research, there is a lack of consensus over the impact of plaques on neuronal function, with their role in cognitive decline and memory loss undecided. Evidence has emerged suggesting complex and localized axonal pathology around amyloid plaques, with a significant fraction of swellings and dystrophies becoming enriched with putative synaptic vesicles and presynaptic proteins normally colocalized at hotspots of transmitter release. In the absence of hallmark active zone proteins and postsynaptic receptive elements, the axonal swellings surrounding amyloid plaques have been suggested as sites for ectopic release of glutamate, which under reduced clearance can lead to elevated local excitatory drive. Throughout this review, we consider the emerging data suggestive of amyloid plaques as hotspots of compulsive glutamatergic activity. Evidence for local and long-range effects of nonsynaptic glutamate is discussed in the context of circuit dysfunctions and neurodegenerative changes of Alzheimer's disease.
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Affiliation(s)
- Saak V Ovsepian
- Institute for Biological and Medical Imaging, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg, Germany.,Munich School of Bioengineering, Technical University Munich, Munich, Germany.,International Centre for Neurotherapeutics, Dublin City University, Dublin, Ireland
| | - Valerie B O'Leary
- International Centre for Neurotherapeutics, Dublin City University, Dublin, Ireland
| | - Laszlo Zaborszky
- Center for Molecular and Behavioral Neuroscience, Rutgers, the State University of New Jersey, Newark, NJ, USA
| | - Vasilis Ntziachristos
- Institute for Biological and Medical Imaging, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg, Germany.,Munich School of Bioengineering, Technical University Munich, Munich, Germany
| | - J Oliver Dolly
- International Centre for Neurotherapeutics, Dublin City University, Dublin, Ireland
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30
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Transient Receptor Potential Vanilloid 4 Channel Deficiency Aggravates Tubular Damage after Acute Renal Ischaemia Reperfusion. Sci Rep 2018; 8:4878. [PMID: 29559678 PMCID: PMC5861116 DOI: 10.1038/s41598-018-23165-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 03/05/2018] [Indexed: 12/31/2022] Open
Abstract
Transient receptor potential vanilloid 4 (TRPV4) cation channels are functional in all renal vascular segments and mediate endothelium-dependent vasorelaxation. Moreover, they are expressed in distinct parts of the tubular system and activated by cell swelling. Ischaemia/reperfusion injury (IRI) is characterized by tubular injury and endothelial dysfunction. Therefore, we hypothesised a putative organ protective role of TRPV4 in acute renal IRI. IRI was induced in TRPV4 deficient (Trpv4 KO) and wild-type (WT) control mice by clipping the left renal pedicle after right-sided nephrectomy. Serum creatinine level was higher in Trpv4 KO mice 6 and 24 hours after ischaemia compared to WT mice. Detailed histological analysis revealed that IRI caused aggravated renal tubular damage in Trpv4 KO mice, especially in the renal cortex. Immunohistological and functional assessment confirmed TRPV4 expression in proximal tubular cells. Furthermore, the tubular damage could be attributed to enhanced necrosis rather than apoptosis. Surprisingly, the percentage of infiltrating granulocytes and macrophages were comparable in IRI-damaged kidneys of Trpv4 KO and WT mice. The present results suggest a renoprotective role of TRPV4 during acute renal IRI. Further studies using cell-specific TRPV4 deficient mice are needed to clarify cellular mechanisms of TRPV4 in IRI.
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Moore C, Gupta R, Jordt SE, Chen Y, Liedtke WB. Regulation of Pain and Itch by TRP Channels. Neurosci Bull 2018; 34:120-142. [PMID: 29282613 PMCID: PMC5799130 DOI: 10.1007/s12264-017-0200-8] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/27/2017] [Indexed: 02/07/2023] Open
Abstract
Nociception is an important physiological process that detects harmful signals and results in pain perception. In this review, we discuss important experimental evidence involving some TRP ion channels as molecular sensors of chemical, thermal, and mechanical noxious stimuli to evoke the pain and itch sensations. Among them are the TRPA1 channel, members of the vanilloid subfamily (TRPV1, TRPV3, and TRPV4), and finally members of the melastatin group (TRPM2, TRPM3, and TRPM8). Given that pain and itch are pro-survival, evolutionarily-honed protective mechanisms, care has to be exercised when developing inhibitory/modulatory compounds targeting specific pain/itch-TRPs so that physiological protective mechanisms are not disabled to a degree that stimulus-mediated injury can occur. Such events have impeded the development of safe and effective TRPV1-modulating compounds and have diverted substantial resources. A beneficial outcome can be readily accomplished via simple dosing strategies, and also by incorporating medicinal chemistry design features during compound design and synthesis. Beyond clinical use, where compounds that target more than one channel might have a place and possibly have advantageous features, highly specific and high-potency compounds will be helpful in mechanistic discovery at the structure-function level.
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Affiliation(s)
- Carlene Moore
- Department of Neurology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Rupali Gupta
- Department of Neurology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Sven-Eric Jordt
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Yong Chen
- Department of Neurology, Duke University Medical Center, Durham, NC, 27710, USA.
| | - Wolfgang B Liedtke
- Department of Neurology, Duke University Medical Center, Durham, NC, 27710, USA.
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, 27710, USA.
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