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Wang S, He H, Chen Y, Wang Y, Cui T, Ma N. TRPV4 modulation participates in paraoxon-induced brain injury via NMDA and NLRP3 regulation. Brain Inj 2024; 38:848-857. [PMID: 38711413 DOI: 10.1080/02699052.2024.2351104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 04/29/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND Organophosphorus pesticide poisoning can lead to severe brain damage, but the specific mechanisms involved are not fully understood. Our research aims to elucidate the function of the TRPV4 ion channel in the development of brain injury induced by paraoxon (POX). METHODS In vivo, we examined the survival rate, behavioral seizures, histopathological alterations, NMDA receptor phosphorylation, as well as the expression of the NLRP3-ASC-caspase-1 complex and downstream inflammatory factors in the POX poisoning model following intervention with the TRPV4 antagonist GSK2193874. In vitro, we investigated the effects of GSK2193874 on NMDA-induced inward current, cell viability, cell death rate, and Ca2+ accumulation in primary hippocampal neurons. RESULTS The treatment with the TRPV4 antagonist increased the survival rate, suppressed the status epilepticus, improved pathological damage, and reduced the phosphorylation level of NMDA receptors after POX exposure. Additionally, it inhibited the upregulation of NLRP3 inflammasome and inflammatory cytokines expression after POX exposure. Moreover, the TRPV4 antagonist corrected the NMDA-induced increase in inward current and cell death rate, decrease in cell viability, and Ca2+ accumulation. CONCLUSION TRPV4 participates in the mechanisms of brain injury induced by POX exposure through NMDA-mediated excitotoxicity and NLRP3-mediated inflammatory response.
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Affiliation(s)
- Shuai Wang
- College of Medicine, Xinyang Normal University, Xinyang, China
| | - Huanhuan He
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yu Chen
- College of Medicine, Xinyang Normal University, Xinyang, China
| | - Yaru Wang
- College of Medicine, Xinyang Normal University, Xinyang, China
| | - Tingting Cui
- College of Medicine, Xinyang Normal University, Xinyang, China
| | - Ninghong Ma
- College of Medicine, Xinyang Normal University, Xinyang, China
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Wang F, Wang Y, Zhang QY, Hu KY, Song YJ, Yang L, Fei F, Xu CL, Cui SL, Ruan YP, Wang Y, Chen Z. Small-molecule caspase-1 inhibitor CZL80 terminates refractory status epilepticus via inhibition of glutamatergic transmission. Acta Pharmacol Sin 2024; 45:1381-1392. [PMID: 38514863 PMCID: PMC11192899 DOI: 10.1038/s41401-024-01257-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/29/2024] [Indexed: 03/23/2024] Open
Abstract
Status epilepticus (SE), a serious and often life-threatening medical emergency, is characterized by abnormally prolonged seizures. It is not effectively managed by present first-line anti-seizure medications and could readily develop into drug resistance without timely treatment. In this study, we highlight the therapeutic potential of CZL80, a small molecule that inhibits caspase-1, in SE termination and its related mechanisms. We found that delayed treatment of diazepam (0.5 h) easily induces resistance in kainic acid (KA)-induced SE. CZL80 dose-dependently terminated diazepam-resistant SE, extending the therapeutic time window to 3 h following SE, and also protected against neuronal damage. Interestingly, the effect of CZL80 on SE termination was model-dependent, as evidenced by ineffectiveness in the pilocarpine-induced SE. Further, we found that CZL80 did not terminate KA-induced SE in Caspase-1-/- mice but partially terminated SE in IL1R1-/- mice, suggesting the SE termination effect of CZL80 was dependent on the caspase-1, but not entirely through the downstream IL-1β pathway. Furthermore, in vivo calcium fiber photometry revealed that CZL80 completely reversed the neuroinflammation-augmented glutamatergic transmission in SE. Together, our results demonstrate that caspase-1 inhibitor CZL80 terminates diazepam-resistant SE by blocking glutamatergic transmission. This may be of great therapeutic significance for the clinical treatment of refractory SE.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yu Wang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Qing-Yang Zhang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Ke-Yu Hu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Ying-Jie Song
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Lin Yang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Fan Fei
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Ceng-Lin Xu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Sun-Liang Cui
- Key Laboratory of Medical Neurobiology of The Ministry of Health of China, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Ye-Ping Ruan
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yi Wang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
- Key Laboratory of Medical Neurobiology of The Ministry of Health of China, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China.
| | - Zhong Chen
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, Department of Neurology, The First Affiliated Hospital, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
- Key Laboratory of Medical Neurobiology of The Ministry of Health of China, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China.
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3
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Singh N, Golime R, Kumar A, Roy T. Attenuation of Nerve Agent Induced Neurodegenerative and Neuroinflammatory Changes in Rats with New Combination Treatment of Galantamine, Atropine and Midazolam. Mol Neurobiol 2024:10.1007/s12035-024-04294-2. [PMID: 38867111 DOI: 10.1007/s12035-024-04294-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 06/07/2024] [Indexed: 06/14/2024]
Abstract
Acute nerve agent exposure can kill a person within minutes or produce multiple neurotoxic effects and subsequent brain damage with potential long-term adverse outcomes. Recent abuse of nerve-agents on Syrian civilians, during Japan terrorist attacks, and personal assassinations in the UK, and Malaysia indicate their potential threat to world population. Existing nerve agent antidotes offer only incomplete protection especially, if the treatment is delayed. To develop the effective drugs, it is advantageous to elucidate the underlying mechanisms of nerve agent-induced multiple neurological impairments. This study aimed to investigate the molecular basis of neuroinflammation during nerve agent toxicity with focus on inflammasome-associated proteins and neurodegeneration. In rats, NOD-like receptor family pyrin domain containing 3 (NLRP3), and glial fibrillary acidic protein (GFAP) immunoreactivity levels were considerably increased in the hippocampus, piriform cortex, and amygdala areas after single subcutaneous soman exposure (90 µg/kg-1). Western analysis indicated a notable increase in the neuroinflammatory indicator proteins, high mobility group box 1 (HMGB1) and inducible nitric oxide synthase (iNOS) levels. The presence of fluorojade-C-stained degenerating neurons in distinct rat brain areas is indicating the neurodegeneration during nerve agent toxicity. Pre-treatment with galantamine (3 mg/kg, - 30 min) followed by post-treatment of atropine (10 mg/kg, i.m.) and midazolam (5 mg/kg, i.m.), has completely protected animals from death induced by supra-lethal dose of soman (2XLD50) and reduced the neuroinflammatory and neurodegenerative changes. Results highlight that this new prophylactic and therapeutic drug combination might be an effective treatment option for soldiers deployed in conflict areas and first responders dealing with accidental/deliberate release of nerve agents.
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Affiliation(s)
- Naveen Singh
- Biomedical Verification Division, Defence Research and Development Establishment (DRDE), Jhansi Road, Gwalior, M.P, India
| | - RamaRao Golime
- Biomedical Verification Division, Defence Research and Development Establishment (DRDE), Jhansi Road, Gwalior, M.P, India.
- Department of Epidemiology and Public Health, Central University of Tamil Nadu, Thiruvarur, India.
| | - Abdhesh Kumar
- Animal Facility Division, DRDE, Jhansi Road, Gwalior, M.P, India
| | - Tuhin Roy
- Process Technology Development Division, DRDE, Jhansi Road, Gwalior, M.P, India
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4
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Chen J, Gao Y, Liu N, Hai D, Wei W, Liu Y, Lan X, Jin X, Yu J, Ma L. Mechanism of NLRP3 Inflammasome in Epilepsy and Related Therapeutic Agents. Neuroscience 2024; 546:157-177. [PMID: 38574797 DOI: 10.1016/j.neuroscience.2024.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/05/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024]
Abstract
Epilepsy is one of the most widespread and complex diseases in the central nervous system (CNS), affecting approximately 65 million people globally, an important factor resulting in neurological disability-adjusted life year (DALY) and progressive cognitive dysfunction. Medication is the most essential treatment. The currently used drugs have shown drug resistance in some patients and only control symptoms; the development of novel and more efficacious pharmacotherapy is imminent. Increasing evidence suggests neuroinflammation is involved in the occurrence and development of epilepsy, and high expression of NLRP3 inflammasome has been observed in the temporal lobe epilepsy (TLE) brain tissue of patients and animal models. The inflammasome is a crucial cause of neuroinflammation by activating IL-1β and IL-18. Many preclinical studies have confirmed that regulating NLRP3 inflammasome pathway can prevent the development of epilepsy, reduce the severity of epilepsy, and play a neuroprotective role. Therefore, regulating NLRP3 inflammasome could be a potential target for epilepsy treatment. In summary, this review describes the priming and activation of inflammasome and its biological function in the progression of epilepsy. In addition, we reviewes the current pharmacological researches for epilepsy based on the regulation of NLRP3 inflammasome, aiming to provide a basis and reference for developing novel antiepileptic drugs.
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Affiliation(s)
- Juan Chen
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Yuan Gao
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Ning Liu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Dongmei Hai
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Wei Wei
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Yue Liu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Xiaobing Lan
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Xueqin Jin
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China.
| | - Jianqiang Yu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China.
| | - Lin Ma
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China.
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5
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Zhang X, Zhang Y, Su Q, Liu Y, Li Z, Yong VW, Xue M. Ion Channel Dysregulation Following Intracerebral Hemorrhage. Neurosci Bull 2024; 40:401-414. [PMID: 37755675 PMCID: PMC10912428 DOI: 10.1007/s12264-023-01118-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 06/14/2023] [Indexed: 09/28/2023] Open
Abstract
Injury to the brain after intracerebral hemorrhage (ICH) results from numerous complex cellular mechanisms. At present, effective therapy for ICH is limited and a better understanding of the mechanisms of brain injury is necessary to improve prognosis. There is increasing evidence that ion channel dysregulation occurs at multiple stages in primary and secondary brain injury following ICH. Ion channels such as TWIK-related K+ channel 1, sulfonylurea 1 transient receptor potential melastatin 4 and glutamate-gated channels affect ion homeostasis in ICH. They in turn participate in the formation of brain edema, disruption of the blood-brain barrier, and the generation of neurotoxicity. In this review, we summarize the interaction between ions and ion channels, the effects of ion channel dysregulation, and we discuss some therapeutics based on ion-channel modulation following ICH.
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Affiliation(s)
- Xiangyu Zhang
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Yan Zhang
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Qiuyang Su
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Yang Liu
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Zhe Li
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - V Wee Yong
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Mengzhou Xue
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China.
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China.
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6
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Kolić D, Kovarik Z. N-methyl-d-aspartate receptors: Structure, function, and role in organophosphorus compound poisoning. Biofactors 2024. [PMID: 38415801 DOI: 10.1002/biof.2048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/05/2024] [Indexed: 02/29/2024]
Abstract
Acute organophosphorus compound (OP) poisoning induces symptoms of the cholinergic crises with the occurrence of severe epileptic seizures. Seizures are induced by hyperstimulation of the cholinergic system, but are enhanced by hyperactivation of the glutamatergic system. Overstimulation of muscarinic cholinergic receptors by the elevated acetylcholine causes glutamatergic hyperexcitation and an increased influx of Ca2+ into neurons through a type of ionotropic glutamate receptors, N-methyl-d-aspartate (NMDA) receptors (NMDAR). These excitotoxic signaling processes generate reactive oxygen species, oxidative stress, and activation of the neuroinflammatory response, which can lead to recurrent epileptic seizures, neuronal cell death, and long-term neurological damage. In this review, we illustrate the NMDAR structure, complexity of subunit composition, and the various receptor properties that change accordingly. Although NMDARs are in normal physiological conditions important for controlling synaptic plasticity and mediating learning and memory functions, we elaborate the detrimental role NMDARs play in neurotoxicity of OPs and focus on the central role NMDAR inhibition plays in suppressing neurotoxicity and modulating the inflammatory response. The limited efficacy of current medical therapies for OP poisoning concerning the development of pharmacoresistance and mitigating proinflammatory response highlights the importance of NMDAR inhibitors in preventing neurotoxic processes and points to new avenues for exploring therapeutics for OP poisoning.
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Affiliation(s)
- Dora Kolić
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Zrinka Kovarik
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia
- Department of Chemistry, Faculty of Science, University of Zagreb, Zagreb, Croatia
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7
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Ye X, Lin JY, Chen LX, Wu XC, Ma KJ, Li BX, Fang YX. SREBP1 deficiency diminishes glutamate-mediated HT22 cell damage and hippocampal neuronal pyroptosis induced by status epilepticus. Heliyon 2024; 10:e23945. [PMID: 38205297 PMCID: PMC10777081 DOI: 10.1016/j.heliyon.2023.e23945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 11/06/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024] Open
Abstract
Status epilepticus (SE) is a life-threatening disorder that can result in death or severe brain damage, and there is a substantial body of evidence suggesting a strong association between pyroptosis and SE. Sterol regulatory element binding protein 1 (SREBP1) is a significant transcription factor participating in both lipid homeostasis and glucose metabolism. However, the function of SREBP1 in pyroptosis during SE remains unknown. In this study, we established a SE rat model by intraperitoneal injection of lithium chloride and pilocarpine in vivo. Additionally, we treated HT22 hippocampal cells with glutamate to create neuronal injury models in vitro. Our results demonstrated a significant induction of SREBP1, inflammasomes, and pyroptosis in the hippocampus of SE rats and glutamate-treated HT22 cells. Moreover, we found that SREBP1 is regulated by the mTOR signaling pathway, and inhibiting mTOR signaling contributed to the amelioration of SE-induced hippocampal neuron pyroptosis, accompanied by a reduction in SREBP1 expression. Furthermore, we conducted siRNA-mediated knockdown of SREBP1 in HT22 cells and observed a significant reversal of glutamate-induced cell death, activation of inflammasomes, and pyroptosis. Importantly, our confocal immunofluorescence analysis revealed the co-localization of SREBP1 and NLRP1. In conclusion, our findings suggest that deficiency of SREBP1 attenuates glutamate-induced HT22 cell injury and hippocampal neuronal pyroptosis in rats following SE. Targeting SREBP1 may hold promise as a therapeutic strategy for SE.
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Affiliation(s)
- Xing Ye
- Department of Forensic Medicine, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, 341000, China
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Jun-Yi Lin
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Ling-Xia Chen
- Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, 341000, China
| | - Xue-chun Wu
- Department of Neurology, Minhang Hospital, Fudan University, Shanghai, China
| | - Kai-Jun Ma
- Shanghai Key Laboratory of Crime Scene Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai, 200083, China
| | - Bei-Xu Li
- School of Policing Studies, Shanghai University of Political Science and Law, Shanghai, 201701, China
| | - You-Xin Fang
- Department of Neurology, Minhang Hospital, Fudan University, Shanghai, China
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Spurlock M, An W, Reshetnikova G, Wen R, Wang H, Braha M, Solis G, Kurtenbach S, Galindez OJ, de Rivero Vaccari JP, Chou TH, Porciatti V, Shestopalov VI. The Inflammasome-Dependent Dysfunction and Death of Retinal Ganglion Cells after Repetitive Intraocular Pressure Spikes. Cells 2023; 12:2626. [PMID: 37998361 PMCID: PMC10670000 DOI: 10.3390/cells12222626] [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: 09/27/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023] Open
Abstract
The dysfunction and selective loss of retinal ganglion cells (RGCs) is a known cause of vision loss in glaucoma and other neuropathies, where ocular hypertension (OHT) is the major risk factor. We investigated the impact of transient non-ischemic OHT spikes (spOHT) on RGC function and viability in vivo to identify cellular pathways linking low-grade repetitive mechanical stress to RGC pathology. We found that repetitive spOHT had an unexpectedly high impact on intraocular homeostasis and RGC viability, while exposure to steady OHT (stOHT) of a similar intensity and duration failed to induce pathology. The repetitive spOHT induced the rapid activation of the inflammasome, marked by the upregulation of NLRP1, NLRP3, AIM2, caspases -1, -3/7, -8, and Gasdermin D (GSDMD), and the release of interleukin-1β (IL-1β) and other cytokines into the vitreous. Similar effects were also detected after 5 weeks of exposure to chronic OHT in an induced glaucoma model. The onset of these immune responses in both spOHT and glaucoma models preceded a 50% deficit in pattern electroretinogram (PERG) amplitude and a significant loss of RGCs 7 days post-injury. The inactivation of inflammasome complexes in Nlrp1-/-, Casp1-/-, and GsdmD-/- knockout animals significantly suppressed the spOHT-induced inflammatory response and protected RGCs. Our results demonstrate that mechanical stress produced by acute repetitive spOHT or chronic OHT is mechanistically linked to inflammasome activation, which leads to RGC dysfunction and death.
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Affiliation(s)
- Markus Spurlock
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
- Neuroscience Graduate Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
| | - Weijun An
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Galina Reshetnikova
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Rong Wen
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Hua Wang
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Michelle Braha
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Gabriela Solis
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Stefan Kurtenbach
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Orlando J. Galindez
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
| | - Juan Pablo de Rivero Vaccari
- Neuroscience Graduate Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
| | - Tsung-Han Chou
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Vittorio Porciatti
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
| | - Valery I. Shestopalov
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (M.S.); (W.A.); (G.R.); (R.W.); (H.W.); (M.B.); (G.S.); (S.K.); (V.P.)
- Department of Cell Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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9
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Kong S, Chen TX, Jia XL, Cheng XL, Zeng ML, Liang JY, He XH, Yin J, Han S, Liu WH, Fan YT, Zhou T, Liu YM, Peng BW. Cell-specific NFIA upregulation promotes epileptogenesis by TRPV4-mediated astrocyte reactivity. J Neuroinflammation 2023; 20:247. [PMID: 37880726 PMCID: PMC10601220 DOI: 10.1186/s12974-023-02909-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 09/26/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND The astrocytes in the central nervous system (CNS) exhibit morphological and functional diversity in brain region-specific pattern. Functional alterations of reactive astrocytes are commonly present in human temporal lobe epilepsy (TLE) cases, meanwhile the neuroinflammation mediated by reactive astrocytes may advance the development of hippocampal epilepsy in animal models. Nuclear factor I-A (NFIA) may regulate astrocyte diversity in the adult brain. However, whether NFIA endows the astrocytes with regional specificity to be involved in epileptogenesis remains elusive. METHODS Here, we utilize an interference RNA targeting NFIA to explore the characteristics of NFIA expression and its role in astrocyte reactivity in a 4-aminopyridine (4-AP)-induced seizure model in vivo and in vitro. Combined with the employment of a HA-tagged plasmid overexpressing NFIA, we further investigate the precise mechanisms how NIFA facilitates epileptogenesis. RESULTS 4-AP-induced NFIA upregulation in hippocampal region is astrocyte-specific, and primarily promotes detrimental actions of reactive astrocyte. In line with this phenomenon, both NFIA and vanilloid transient receptor potential 4 (TRPV4) are upregulated in hippocampal astrocytes in human samples from the TLE surgical patients and mouse samples with intraperitoneal 4-AP. NFIA directly regulates mouse astrocytic TRPV4 expression while the quantity and the functional activity of TRPV4 are required for 4-AP-induced astrocyte reactivity and release of proinflammatory cytokines in the charge of NFIA upregulation. NFIA deficiency efficiently inhibits 4-AP-induced TRPV4 upregulation, weakens astrocytic calcium activity and specific astrocyte reactivity, thereby mitigating aberrant neuronal discharges and neuronal damage, and suppressing epileptic seizure. CONCLUSIONS Our results uncover the critical role of NFIA in astrocyte reactivity and illustrate how epileptogenic brain injury initiates cell-specific signaling pathway to dictate the astrocyte responses.
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Affiliation(s)
- Shuo Kong
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Tao-Xiang Chen
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Xiang-Lei Jia
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Xue-Lei Cheng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Meng-Liu Zeng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Jing-Yi Liang
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Xiao-Hua He
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Jun Yin
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Song Han
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Wan-Hong Liu
- Department of Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Yuan-Teng Fan
- Department of Neurology, Zhongnan Hospital, Wuhan University, Donghu Road 169#, Wuhan, 430071, China
| | - Ting Zhou
- Department of Neurology, People's Hospital of Dongxihu District, Wuhan, 430040, Hubei, China
| | - Yu-Min Liu
- Department of Neurology, Zhongnan Hospital, Wuhan University, Donghu Road 169#, Wuhan, 430071, China.
| | - Bi-Wen Peng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, China.
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10
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Long Q, Zhang Z, Li Y, Zhong Y, Liu H, Chang L, Ying Y, Zuo T, Wang Y, Xu P. Phosphoproteome reveals long-term potentiation deficit following treatment of ultra-low dose soman exposure in mice. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132211. [PMID: 37572605 DOI: 10.1016/j.jhazmat.2023.132211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/14/2023]
Abstract
Soman, a warfare nerve agent, poses a significant threat by inducing severe brain damage that often results in death. Nonetheless, our understanding of the biological changes underlying persistent neurocognitive dysfunction caused by low dosage of soman remains limited. This study used mice to examine the effects of different doses of soman over time. Phosphoproteomic analysis of the mouse brain is the first time to be used to detect toxic effects of soman at such low or ultra-low doses, which were undetectable based on measuring the activity of acetylcholinesterase at the whole-animal level. We also found that phosphoproteome alterations could accurately track the soman dose, irrespective of the sampling time. Moreover, phosphoproteome revealed a rapid and adaptive cellular response to soman exposure, with the points of departure 8-38 times lower than that of acetylcholinesterase activity. Impaired long-term potentiation was identified in phosphoproteomic studies, which was further validated by targeted quantitative proteomics, immunohistochemistry, and immunofluorescence analyses, with significantly increased levels of phosphorylation of protein phosphatase 1 in the hippocampus following soman exposure. This increase in phosphorylation inhibits long-term potentiation, ultimately leading to long-term memory dysfunction in mice.
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Affiliation(s)
- Qi Long
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Research Unit of Proteomics & Research and Development of New Drug of Chinese Academy of Medical Sciences, Institute of Lifeomics, Beijing 102206, China; School of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Zhenpeng Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Research Unit of Proteomics & Research and Development of New Drug of Chinese Academy of Medical Sciences, Institute of Lifeomics, Beijing 102206, China
| | - Yuan Li
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Research Unit of Proteomics & Research and Development of New Drug of Chinese Academy of Medical Sciences, Institute of Lifeomics, Beijing 102206, China; Department of Biomedicine, Medical College, Guizhou University, Guiyang 550025, China
| | - Yuxu Zhong
- Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences PLA China, Beijing 100850, China
| | - Hongyan Liu
- Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences PLA China, Beijing 100850, China
| | - Lei Chang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Research Unit of Proteomics & Research and Development of New Drug of Chinese Academy of Medical Sciences, Institute of Lifeomics, Beijing 102206, China
| | - Ying Ying
- Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences PLA China, Beijing 100850, China
| | - Tao Zuo
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Research Unit of Proteomics & Research and Development of New Drug of Chinese Academy of Medical Sciences, Institute of Lifeomics, Beijing 102206, China.
| | - Yong'an Wang
- Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences PLA China, Beijing 100850, China.
| | - Ping Xu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Research Unit of Proteomics & Research and Development of New Drug of Chinese Academy of Medical Sciences, Institute of Lifeomics, Beijing 102206, China; School of Basic Medicine, Anhui Medical University, Hefei 230032, China; Department of Biomedicine, Medical College, Guizhou University, Guiyang 550025, China; Program of Environmental Toxicology, School of Public Health, China Medical University, Shenyang 110122, China.
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11
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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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12
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Li Z, Chen L, Xu C, Chen Z, Wang Y. Non-invasive sensory neuromodulation in epilepsy: Updates and future perspectives. Neurobiol Dis 2023; 179:106049. [PMID: 36813206 DOI: 10.1016/j.nbd.2023.106049] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Epilepsy, one of the most common neurological disorders, often is not well controlled by current pharmacological and surgical treatments. Sensory neuromodulation, including multi-sensory stimulation, auditory stimulation, olfactory stimulation, is a kind of novel noninvasive mind-body intervention and receives continued attention as complementary safe treatment of epilepsy. In this review, we summarize the recent advances of sensory neuromodulation, including enriched environment therapy, music therapy, olfactory therapy, other mind-body interventions, for the treatment of epilepsy based on the evidence from both clinical and preclinical studies. We also discuss their possible anti-epileptic mechanisms on neural circuit level and propose perspectives on possible research directions for future studies.
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Affiliation(s)
- Zhongxia Li
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; Zhejiang Rehabilitation Medical Center Department, The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Liying Chen
- Department of Pharmacy, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Cenglin Xu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Zhong Chen
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yi Wang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; Zhejiang Rehabilitation Medical Center Department, The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China.
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13
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Chiarini A, Gui L, Viviani C, Armato U, Dal Prà I. NLRP3 Inflammasome’s Activation in Acute and Chronic Brain Diseases—An Update on Pathogenetic Mechanisms and Therapeutic Perspectives with Respect to Other Inflammasomes. Biomedicines 2023; 11:biomedicines11040999. [PMID: 37189617 DOI: 10.3390/biomedicines11040999] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
Increasingly prevalent acute and chronic human brain diseases are scourges for the elderly. Besides the lack of therapies, these ailments share a neuroinflammation that is triggered/sustained by different innate immunity-related protein oligomers called inflammasomes. Relevant neuroinflammation players such as microglia/monocytes typically exhibit a strong NLRP3 inflammasome activation. Hence the idea that NLRP3 suppression might solve neurodegenerative ailments. Here we review the recent Literature about this topic. First, we update conditions and mechanisms, including RNAs, extracellular vesicles/exosomes, endogenous compounds, and ethnic/pharmacological agents/extracts regulating NLRP3 function. Second, we pinpoint NLRP3-activating mechanisms and known NLRP3 inhibition effects in acute (ischemia, stroke, hemorrhage), chronic (Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, MS, ALS), and virus-induced (Zika, SARS-CoV-2, and others) human brain diseases. The available data show that (i) disease-specific divergent mechanisms activate the (mainly animal) brains NLRP3; (ii) no evidence proves that NLRP3 inhibition modifies human brain diseases (yet ad hoc trials are ongoing); and (iii) no findings exclude that concurrently activated other-than-NLRP3 inflammasomes might functionally replace the inhibited NLRP3. Finally, we highlight that among the causes of the persistent lack of therapies are the species difference problem in disease models and a preference for symptomatic over etiologic therapeutic approaches. Therefore, we posit that human neural cell-based disease models could drive etiological, pathogenetic, and therapeutic advances, including NLRP3’s and other inflammasomes’ regulation, while minimizing failure risks in candidate drug trials.
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14
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Zeng ML, Kong S, Chen TX, Peng BW. Transient Receptor Potential Vanilloid 4: a Double-Edged Sword in the Central Nervous System. Mol Neurobiol 2023; 60:1232-1249. [PMID: 36434370 DOI: 10.1007/s12035-022-03141-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/17/2022] [Indexed: 11/26/2022]
Abstract
Transient receptor potential vanilloid 4 (TRPV4) is a nonselective cation channel that can be activated by diverse stimuli, such as heat, mechanical force, hypo-osmolarity, and arachidonic acid metabolites. TRPV4 is widely expressed in the central nervous system (CNS) and participates in many significant physiological processes. However, accumulative evidence has suggested that deficiency, abnormal expression or distribution, and overactivation of TRPV4 are involved in pathological processes of multiple neurological diseases. Here, we review the latest studies concerning the known features of this channel, including its expression, structure, and its physiological and pathological roles in the CNS, proposing an emerging therapeutic strategy for CNS diseases.
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Affiliation(s)
- Meng-Liu Zeng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, Taikang Medical School (School of Basic Medical Sciences), Wuhan University, Donghu Rd185#, Wuhan, 430071, Hubei, China.,Medical Science Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Shuo Kong
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, Taikang Medical School (School of Basic Medical Sciences), Wuhan University, Donghu Rd185#, Wuhan, 430071, Hubei, China
| | - Tao-Xiang Chen
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, Taikang Medical School (School of Basic Medical Sciences), Wuhan University, Donghu Rd185#, Wuhan, 430071, Hubei, China
| | - Bi-Wen Peng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, Taikang Medical School (School of Basic Medical Sciences), Wuhan University, Donghu Rd185#, Wuhan, 430071, Hubei, China.
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15
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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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16
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Ke X, Deng M, Wu Z, Yu H, Yu D, Li H, Lu Y, Shu K, Pei L. miR-34b-3p Inhibition of eIF4E Causes Post-stroke Depression in Adult Mice. Neurosci Bull 2023; 39:194-212. [PMID: 35802246 PMCID: PMC9905405 DOI: 10.1007/s12264-022-00898-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 05/14/2022] [Indexed: 11/30/2022] Open
Abstract
Post-stroke depression (PSD) is a serious and common complication of stroke, which seriously affects the rehabilitation of stroke patients. To date, the pathogenesis of PSD is unclear and effective treatments remain unavailable. Here, we established a mouse model of PSD through photothrombosis-induced focal ischemia. By using a combination of brain imaging, transcriptome sequencing, and bioinformatics analysis, we found that the hippocampus of PSD mice had a significantly lower metabolic level than other brain regions. RNA sequencing revealed a significant reduction of miR34b-3p, which was expressed in hippocampal neurons and inhibited the translation of eukaryotic translation initiation factor 4E (eIF4E). Furthermore, silencing eIF4E inactivated microglia, inhibited neuroinflammation, and abolished the depression-like behaviors in PSD mice. Together, our data demonstrated that insufficient miR34b-3p after stroke cannot inhibit eIF4E translation, which causes PSD by the activation of microglia in the hippocampus. Therefore, miR34b-3p and eIF4E may serve as potential therapeutic targets for the treatment of PSD.
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Affiliation(s)
- Xiao Ke
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Manfei Deng
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhuoze Wu
- Department of Pathophysiology, Basic Medical School, North Sichuan Medical College, Nanchong, 637100, China
| | - Hongyan Yu
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dian Yu
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hao Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Youming Lu
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Kai Shu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lei Pei
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China.
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17
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Research progress of targeting NLRP3 inflammasome in peripheral nerve injury and pain. Int Immunopharmacol 2022; 110:109026. [DOI: 10.1016/j.intimp.2022.109026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/25/2022] [Accepted: 06/30/2022] [Indexed: 01/08/2023]
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18
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Zou Y, Zhang M, Wu Q, Zhao N, Chen M, Yang C, Du Y, Han B. Activation of transient receptor potential vanilloid 4 is involved in pressure overload-induced cardiac hypertrophy. eLife 2022; 11:74519. [PMID: 35731090 PMCID: PMC9224988 DOI: 10.7554/elife.74519] [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] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 06/02/2022] [Indexed: 11/13/2022] Open
Abstract
Previous studies, including our own, have demonstrated that transient receptor potential vanilloid 4 (TRPV4) is expressed in hearts and implicated in cardiac remodeling and dysfunction. However, the effects of TRPV4 on pressure overload-induced cardiac hypertrophy remain unclear. In this study, we found that TRPV4 expression was significantly increased in mouse hypertrophic hearts, human failing hearts, and neurohormone-induced hypertrophic cardiomyocytes. Deletion of TRPV4 attenuated transverse aortic constriction (TAC)-induced cardiac hypertrophy, cardiac dysfunction, fibrosis, inflammation, and the activation of NFκB - NOD - like receptor pyrin domain-containing protein 3 (NLRP3) in mice. Furthermore, the TRPV4 antagonist GSK2193874 (GSK3874) inhibited cardiac remodeling and dysfunction induced by TAC. In vitro, pretreatment with GSK3874 reduced the neurohormone-induced cardiomyocyte hypertrophy and intracellular Ca2+ concentration elevation. The specific TRPV4 agonist GSK1016790A (GSK790A) triggered Ca2+ influx and evoked the phosphorylation of Ca2+/calmodulin-dependent protein kinase II (CaMKII). But these effects were abolished by removing extracellular Ca2+ or GSK3874. More importantly, TAC or neurohormone stimulation-induced CaMKII phosphorylation was significantly blocked by TRPV4 inhibition. Finally, we show that CaMKII inhibition significantly prevented the phosphorylation of NFκB induced by GSK790A. Our results suggest that TRPV4 activation contributes to pressure overload-induced cardiac hypertrophy and dysfunction. This effect is associated with upregulated Ca2+/CaMKII mediated activation of NFκB-NLRP3. Thus, TRPV4 may represent a potential therapeutic drug target for cardiac hypertrophy and dysfunction after pressure overload.
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Affiliation(s)
- Yan Zou
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, China.,Xuzhou Institute of Cardiovascular Disease, Xuzhou Central Hospital, Xuzhou, China
| | - Miaomiao Zhang
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, China
| | - Qiongfeng Wu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ning Zhao
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Minwei Chen
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Cui Yang
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yimei Du
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bing Han
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, China
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19
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Aguilera M, Rossini V, Hickey A, Simnica D, Grady F, Felice VD, Moloney A, Pawley L, Fanning A, McCarthy L, O’Mahony SM, Cryan JF, Nally K, Shanahan F, Melgar S. Inflammasome Signaling Regulates the Microbial-Neuroimmune Axis and Visceral Pain in Mice. Int J Mol Sci 2021; 22:ijms22158336. [PMID: 34361102 PMCID: PMC8371481 DOI: 10.3390/ijms22158336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/21/2021] [Accepted: 07/27/2021] [Indexed: 12/13/2022] Open
Abstract
Interactions between the intestinal microbiota, immune system and nervous system are essential for homeostasis in the gut. Inflammasomes contribute to innate immunity and brain–gut interactions, but their role in microbiota–neuro–immune interactions is not clear. Therefore, we investigated the effect of the inflammasome on visceral pain and local and systemic neuroimmune responses after antibiotic-induced changes to the microbiota. Wild-type (WT) and caspase-1/11 deficient (Casp1 KO) mice were orally treated for 2 weeks with an antibiotic cocktail (Abx, Bacitracin A and Neomycin), followed by quantification of representative fecal commensals (by qPCR), cecal short chain fatty acids (by HPLC), pathways implicated in the gut–neuro-immune axis (by RT-qPCR, immunofluorescence staining, and flow cytometry) in addition to capsaicin-induced visceral pain responses. Abx-treatment in WT-mice resulted in an increase in colonic macrophages, central neuro-immune interactions, colonic inflammasome and nociceptive receptor gene expression and a reduction in capsaicin-induced visceral pain. In contrast, these responses were attenuated in Abx-treated Casp1 KO mice. Collectively, the data indicate an important role for the inflammasome pathway in functional and inflammatory gastrointestinal conditions where pain and alterations in microbiota composition are prominent.
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Affiliation(s)
- Mònica Aguilera
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Valerio Rossini
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Ana Hickey
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
- School of Biochemistry and Cell Biology, University College Cork, T12 YT20 Cork, Ireland
| | - Donjete Simnica
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Fiona Grady
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Valeria D. Felice
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
- Department of Anatomy and Neuroscience, University College Cork, T12 YT20 Cork, Ireland
| | - Amy Moloney
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Lauren Pawley
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
- Department of Anatomy and Neuroscience, University College Cork, T12 YT20 Cork, Ireland
| | - Aine Fanning
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Lorraine McCarthy
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Siobhan M. O’Mahony
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
- Department of Anatomy and Neuroscience, University College Cork, T12 YT20 Cork, Ireland
| | - John F. Cryan
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
- Department of Anatomy and Neuroscience, University College Cork, T12 YT20 Cork, Ireland
| | - Ken Nally
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
- School of Biochemistry and Cell Biology, University College Cork, T12 YT20 Cork, Ireland
| | - Fergus Shanahan
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
| | - Silvia Melgar
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland; (M.A.); (V.R.); (A.H.); (D.S.); (F.G.); (V.D.F.); (A.M.); (L.P.); (A.F.); (L.M.); (S.M.O.); (J.F.C.); (K.N.); (F.S.)
- Correspondence: ; Tel.: +353-21-4901384
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