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Liu C, Sun J, Shen X, Li S, Luo S, Chen N, Zhang Y. Peimine promotes microglial polarization to the M2 phenotype to attenuate drug-resistant epilepsy through suppressing the TLR4/NF-κB/HIF-1α signaling pathway in a rat model and in BV-2 microglia. Heliyon 2024; 10:e34987. [PMID: 39144974 PMCID: PMC11320464 DOI: 10.1016/j.heliyon.2024.e34987] [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: 05/05/2024] [Revised: 07/12/2024] [Accepted: 07/19/2024] [Indexed: 08/16/2024] Open
Abstract
Epilepsy is a chronic neurological disorder. Drug-resistant epilepsy (DRE) accounts for about one-third of epilepsy patients worldwide. Peimine, a main active component of Fritillaria, has been reported to show anti-inflammatory effects. However, its potential therapeutic role in DRE is not yet fully understood. In this work, a DRE rat model was established by injecting 1 μg kainic acid (KA), followed by a 250 mg/kg administration of valproic acid (VPA) from day 4-31. Rats were treated with different doses of peimine (2.5 mg/kg, 5 mg/kg and 10 mg/kg) daily from day 32-62. In vitro, BV-2 microglia were exposed to different doses of peimine (7.5 μg/ml, 15 μg/ml, and 30 μg/ml) in presence of LPS. The aim of this study was to investigate the potential therapeutic effects of peimine on DRE. The results showed that peimine efficiently suppressed the KA-induced epileptic behaviors of rats in a dose-dependent manner, as recorded by electroencephalography. Furthermore, peimine ameliorated hippocampal neuron injury in DRE rats, and promoted an M1-to-M2 microglial phenotype shift in a dose-dependent manner. Mechanistically, peimine inhibited the TLR4/NF-κB/HIF-1α signaling pathway both in vivo and in vitro. Additionally, peimine suppressed the apoptosis of primary neurons induced by LPS-treated microglia. In conclusion, peimine augments the microglial polarization towards an M2 phenotype by inhibiting the TLR4/NF-κB/HIF-1α signaling pathway, thereby attenuating DRE.
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Affiliation(s)
- Chongchong Liu
- Second Ward of Encephalopathy Department, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Jiangyan Sun
- Chronic Disease Prevention and Control Center, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Xiaoming Shen
- Second Ward of Encephalopathy Department, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Shefang Li
- Henan University of Chinese Medicine, Zhengzhou, China
| | - Sha Luo
- Second Ward of Encephalopathy Department, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Na Chen
- Department of Geriatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Yunke Zhang
- Department of Encephalopathy, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
- School of Rehabilitation Medicine, Henan University of Chinese Medicine, Zhengzhou, China
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2
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Gonzalez-Ramos A, Puigsasllosas-Pastor C, Arcas-Marquez A, Tornero D. Updated Toolbox for Assessing Neuronal Network Reconstruction after Cell Therapy. Bioengineering (Basel) 2024; 11:487. [PMID: 38790353 PMCID: PMC11118929 DOI: 10.3390/bioengineering11050487] [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: 03/30/2024] [Revised: 05/02/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Cell therapy has proven to be a promising treatment for a range of neurological disorders, including Parkinson Disease, drug-resistant epilepsy, and stroke, by restoring function after brain damage. Nevertheless, evaluating the true effectiveness of these therapeutic interventions requires a deep understanding of the functional integration of grafted cells into existing neural networks. This review explores a powerful arsenal of molecular techniques revolutionizing our ability to unveil functional integration of grafted cells within the host brain. From precise manipulation of neuronal activity to pinpoint the functional contribution of transplanted cells by using opto- and chemo-genetics, to real-time monitoring of neuronal dynamics shedding light on functional connectivity within the reconstructed circuits by using genetically encoded (calcium) indicators in vivo. Finally, structural reconstruction and mapping communication pathways between grafted and host neurons can be achieved by monosynaptic tracing with viral vectors. The cutting-edge toolbox presented here holds immense promise for elucidating the impact of cell therapy on neural circuitry and guiding the development of more effective treatments for neurological disorders.
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Affiliation(s)
- Ana Gonzalez-Ramos
- Stanley Center for Psychiatric Research at Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Claudia Puigsasllosas-Pastor
- Laboratory of Neural Stem Cells and Brain Damage, Department of Biomedical Sciences, Institute of Neurosciences, University of Barcelona, 08036 Barcelona, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Ainhoa Arcas-Marquez
- Laboratory of Neural Stem Cells and Brain Damage, Department of Biomedical Sciences, Institute of Neurosciences, University of Barcelona, 08036 Barcelona, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Daniel Tornero
- Laboratory of Neural Stem Cells and Brain Damage, Department of Biomedical Sciences, Institute of Neurosciences, University of Barcelona, 08036 Barcelona, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 28029 Madrid, Spain
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3
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Zhou Y, Wang Y, Yang L. Stem Cell Transplantation Represents a New Strategy for the Treatment of Epilepsy. Neurosci Bull 2024; 40:673-676. [PMID: 38656418 PMCID: PMC11127894 DOI: 10.1007/s12264-024-01208-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/28/2024] [Indexed: 04/26/2024] Open
Affiliation(s)
- Yuan Zhou
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences and First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yi Wang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences and First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, 310053, China
- Zhejiang Rehabilitation Medical Center Department, The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, 310013, China
| | - Lin Yang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences and First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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4
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Southwell DG. Interneuron Transplantation for Drug-Resistant Epilepsy. Neurosurg Clin N Am 2024; 35:151-160. [PMID: 38000838 DOI: 10.1016/j.nec.2023.08.006] [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] [Indexed: 11/26/2023]
Abstract
Current epilepsy surgical techniques, such as brain resection, laser ablation, and neurostimulation, target seizure networks macroscopically, and they may yield an unfavorable balance between seizure reduction, procedural invasiveness, and neurologic morbidity. The transplantation of GABAergic interneurons is a regenerative technique for altering neural inhibition in cortical circuits, with potential as an alternative and minimally invasive approach to epilepsy treatment. This article (1) reviews some of the preclinical evidence supporting interneuron transplantation as an epilepsy therapy, (2) describes a first-in-human study of interneuron transplantation for epilepsy, and (3) considers knowledge gaps that stand before the effective clinical application of this novel treatment.
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Affiliation(s)
- Derek G Southwell
- Department of Neurosurgery, Graduate Program in Neurobiology, Duke University, DUMC 3807, 200 Trent Drive, Durham, NC 27710, USA.
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5
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Bershteyn M, Bröer S, Parekh M, Maury Y, Havlicek S, Kriks S, Fuentealba L, Lee S, Zhou R, Subramanyam G, Sezan M, Sevilla ES, Blankenberger W, Spatazza J, Zhou L, Nethercott H, Traver D, Hampel P, Kim H, Watson M, Salter N, Nesterova A, Au W, Kriegstein A, Alvarez-Buylla A, Rubenstein J, Banik G, Bulfone A, Priest C, Nicholas CR. Human pallial MGE-type GABAergic interneuron cell therapy for chronic focal epilepsy. Cell Stem Cell 2023; 30:1331-1350.e11. [PMID: 37802038 PMCID: PMC10993865 DOI: 10.1016/j.stem.2023.08.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 03/17/2023] [Accepted: 08/25/2023] [Indexed: 10/08/2023]
Abstract
Mesial temporal lobe epilepsy (MTLE) is the most common focal epilepsy. One-third of patients have drug-refractory seizures and are left with suboptimal therapeutic options such as brain tissue-destructive surgery. Here, we report the development and characterization of a cell therapy alternative for drug-resistant MTLE, which is derived from a human embryonic stem cell line and comprises cryopreserved, post-mitotic, medial ganglionic eminence (MGE) pallial-type GABAergic interneurons. Single-dose intrahippocampal delivery of the interneurons in a mouse model of chronic MTLE resulted in consistent mesiotemporal seizure suppression, with most animals becoming seizure-free and surviving longer. The grafted interneurons dispersed locally, functionally integrated, persisted long term, and significantly reduced dentate granule cell dispersion, a pathological hallmark of MTLE. These disease-modifying effects were dose-dependent, with a broad therapeutic range. No adverse effects were observed. These findings support an ongoing phase 1/2 clinical trial (NCT05135091) for drug-resistant MTLE.
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Affiliation(s)
| | - Sonja Bröer
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Mansi Parekh
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Yves Maury
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Steven Havlicek
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Sonja Kriks
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Luis Fuentealba
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Seonok Lee
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Robin Zhou
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | | | - Meliz Sezan
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | | | | | - Julien Spatazza
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Li Zhou
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA; The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA
| | | | - David Traver
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Philip Hampel
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Hannah Kim
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Michael Watson
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Naomi Salter
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | | | - Wai Au
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | - Arnold Kriegstein
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA; The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Arturo Alvarez-Buylla
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - John Rubenstein
- Department of Psychiatry, Weill Institute for Neurosciences, Kavli Institute for Fundamental Neuroscience, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Gautam Banik
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA
| | | | | | - Cory R Nicholas
- Neurona Therapeutics Inc., South San Francisco, CA 94080, USA.
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Zaitsev AV, Khazipov R. Molecular and Cellular Mechanisms of Epilepsy. Int J Mol Sci 2023; 24:12415. [PMID: 37569790 PMCID: PMC10418982 DOI: 10.3390/ijms241512415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Despite the availability of a large number of antiepileptic drugs, about 30% of patients with epilepsy, especially temporal lobe epilepsy (TLE), continue to experience seizures [...].
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Affiliation(s)
- Aleksey V. Zaitsev
- Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 Saint Petersburg, Russia
| | - Roustem Khazipov
- Laboratory of Neurobiology, Kazan Federal University, 420008 Kazan, Russia;
- Institut de Neurobiologie de la Méditerranée (Inserm U1249), Aix-Marseille Université, 13273 Marseille, France
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Alayli A, Lockard G, Gordon J, Connolly J, Monsour M, Schimmel S, Dela Peña I, Borlongan CV. Stem Cells: Recent Developments Redefining Epilepsy Therapy. Cell Transplant 2023; 32:9636897231158967. [PMID: 36919673 PMCID: PMC10021095 DOI: 10.1177/09636897231158967] [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: 12/27/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 03/16/2023] Open
Abstract
The field of stem cell therapy is growing rapidly and hopes to offer an alternative solution to diseases that are historically treated medically or surgically. One such focus of research is the treatment of medically refractory epilepsy, which is traditionally approached from a surgical or interventional standpoint. Research shows that stem cell transplantation has potential to offer significant benefits to the epilepsy patient by reducing seizure frequency, intensity, and neurological deficits that often result from the condition. This review explores the basic science progress made on the topic of stem cells and epilepsy by focusing on experiments using animal models and highlighting the most recent developments from the last 4 years.
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Affiliation(s)
- Adam Alayli
- University of South Florida Morsani
College of Medicine, Tampa, FL, USA
| | - Gavin Lockard
- University of South Florida Morsani
College of Medicine, Tampa, FL, USA
| | - Jonah Gordon
- University of South Florida Morsani
College of Medicine, Tampa, FL, USA
| | - Jacob Connolly
- University of South Florida Morsani
College of Medicine, Tampa, FL, USA
| | - Molly Monsour
- University of South Florida Morsani
College of Medicine, Tampa, FL, USA
| | - Samantha Schimmel
- University of South Florida Morsani
College of Medicine, Tampa, FL, USA
| | - Ike Dela Peña
- Department of Pharmaceutical and
Administrative Sciences, Loma Linda University, Loma Linda, CA, USA
| | - Cesar V. Borlongan
- Center of Excellence for Aging and
Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, FL,
USA
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8
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Nasudi G, Elahdadi Salmani M, Hosseinmardi N, Moradpour F, Lashkarbolouki T, Goudarzi I. Hippocampal orexin-1 and endocannabinoid-1 receptors underlie the kainate-induced occlusion in theta-burst long- term potentiation. Neuropeptides 2022; 95:102263. [PMID: 35716469 DOI: 10.1016/j.npep.2022.102263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 06/02/2022] [Accepted: 06/02/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Seizures may result from the hyperexcitable neuronal activity of the brain. Multiple neurotransmitter receptors, including orexin (OX) and endocannabinoids interfere with forming the synaptic responses linked to the seizures. Therefore, this study investigates the involvement of OX-1 (OX1R) and endocannbinoid-1 (CB1R) receptors in the kainate- induced excitability in the synaptic field responses. MATERIAL AND METHODS Theta pattern used to stimulate Schaffer collaterals and then metal microelectrodes to record the CA1 field excitatory postsynaptic potentials (fEPSPs). Input/ output stimulation and responses and paired- pulse (PP) stimuli employed to measure the state of synaptic activity in normal and kainate- induced seizure-like hyperexcitable activities and the slope of fEPSPs used as a measure of the change in the synaptic activity. Furthermore, agonists and antagonists of OX and endocannabinoids infused to investigate the involvement of their receptors. RESULT The results showed that kainate application increased the fEPSP slope either in input stimuli with different intensities/output synaptic responses (I/O), or test pulse stimulated baseline synaptic responses (BSR) and, hence, increased the excitability of field responses in the CA1 region. However, neither kainate nor theta burst stimulation (TBS) could alter the PP stimuli -induced synaptic responses. TBS increased the fEPSP slope of the kainate-applied I/O and BSR, however, the increase was not high enough in BSR to be classified as long-term potentiation (LTP). The single-antagonist OX1R and CB1R administration prevented TBS- induced potentiation and partially recovered the effect by adding eCB or OX agonists in kainate-injected animals. In contrast, OX or combined eCB-OX antagonist application group demonstrated nearly full recovery of LTP induction. CONCLUSION Our study concludes that blockade of OX1 or CB1 prevents the induction of LTP, and OX infusion or both receptor blockade recovers the LTP.
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Affiliation(s)
- Giti Nasudi
- School of Biology, Damghan University, Damghan, Iran
| | | | - Narges Hosseinmardi
- Department of Physiology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Iran
| | - Farshad Moradpour
- Department of Physiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Iran
| | | | - Iran Goudarzi
- School of Biology, Damghan University, Damghan, Iran
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Chang BL, Chang KH. Stem Cell Therapy in Treating Epilepsy. Front Neurosci 2022; 16:934507. [PMID: 35833086 PMCID: PMC9271895 DOI: 10.3389/fnins.2022.934507] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 05/30/2022] [Indexed: 12/24/2022] Open
Abstract
Epilepsy is a common disabling chronic neurological disorder characterized by an enduring propensity for the generation of seizures that result from abnormal hypersynchronous firing of neurons in the brain. Over 20–30% of epilepsy patients fail to achieve seizure control or soon become resistant to currently available therapies. Prolonged seizures or uncontrolled chronic seizures would give rise to neuronal damage or death, astrocyte activation, reactive oxygen species production, and mitochondrial dysfunction. Stem cell therapy is potentially a promising novel therapeutic strategy for epilepsy. The regenerative properties of stem cell-based treatment provide an attractive approach for long-term seizure control, particularly in drug-resistant epilepsy. Embryonic stem cells (ESCs), mesenchymal stem cells (MSCs), neural stem cells (NSCs), induced pluripotent stem cells (iPSCs), and adipose-derived regenerative cells (ADRCs) are capable of differentiating into specialized cell types has been applied for epilepsy treatment in preclinical animal research and clinical trials. In this review, we focused on the advances in stem cell therapy for epilepsies. The goals of stem cell transplantation, its mechanisms underlying graft effects, the types of grafts, and their therapeutic effects were discussed. The cell and animal models used for investigating stem cell technology in epilepsy treatment were summarized.
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Affiliation(s)
- Bao-Luen Chang
- Department of Neurology, Chang Gung Memorial Hospital-Linkou Medical Center, Taoyuan City, Taiwan
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan City, Taiwan
- *Correspondence: Bao-Luen Chang
| | - Kuo-Hsuan Chang
- Department of Neurology, Chang Gung Memorial Hospital-Linkou Medical Center, Taoyuan City, Taiwan
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan City, Taiwan
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Tipton AE, Russek SJ. Regulation of Inhibitory Signaling at the Receptor and Cellular Level; Advances in Our Understanding of GABAergic Neurotransmission and the Mechanisms by Which It Is Disrupted in Epilepsy. Front Synaptic Neurosci 2022; 14:914374. [PMID: 35874848 PMCID: PMC9302637 DOI: 10.3389/fnsyn.2022.914374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/17/2022] [Indexed: 11/13/2022] Open
Abstract
Inhibitory signaling in the brain organizes the neural circuits that orchestrate how living creatures interact with the world around them and how they build representations of objects and ideas. Without tight control at multiple points of cellular engagement, the brain’s inhibitory systems would run down and the ability to extract meaningful information from excitatory events would be lost leaving behind a system vulnerable to seizures and to cognitive decline. In this review, we will cover many of the salient features that have emerged regarding the dynamic regulation of inhibitory signaling seen through the lens of cell biology with an emphasis on the major building blocks, the ligand-gated ion channel receptors that are the first transduction point when the neurotransmitter GABA is released into the synapse. Epilepsy association will be used to indicate importance of key proteins and their pathways to brain function and to introduce novel areas for therapeutic intervention.
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Affiliation(s)
- Allison E. Tipton
- Graduate Program for Neuroscience, Boston University, Boston, MA, United States
- Biomolecular Pharmacology Program, Boston University School of Medicine, Boston, MA, United States
- Boston University MD/PhD Training Program, Boston, MA, United States
| | - Shelley J. Russek
- Biomolecular Pharmacology Program, Boston University School of Medicine, Boston, MA, United States
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, United States
- Center for Systems Neuroscience, Boston University, Boston, MA, United States
- Boston University MD/PhD Training Program, Boston, MA, United States
- *Correspondence: Shelley J. Russek,
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