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Gautam V, Rawat K, Sandhu A, Kumar A, Kharbanda PS, Medhi B, Bhatia A, Saha L. Exploring the effect of 6-BIO and sulindac in modulation of Wnt/β-catenin signaling pathway in chronic phase of temporal lobe epilepsy. Neuropharmacology 2024; 251:109931. [PMID: 38570067 DOI: 10.1016/j.neuropharm.2024.109931] [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: 01/09/2024] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/05/2024]
Abstract
The prospective involvement of the Wnt/β-catenin signaling pathway in epilepsy, with the proposed therapeutic uses of its modulators, has been suggested; however, comprehensive knowledge in this regard is currently limited. Despite postulations about the pathway's significance and treatment potential, a systematic investigation is required to better understand its implications in chronic epilepsy. We investigated the role of key proteins like β-catenin, GSK-3β, and their modulators sulindac and 6-BIO, in Wnt/β-catenin pathway during chronic phase of temporal lobe epilepsy. We also evaluated the role of modulators in seizure score, seizure frequency and neurobehavioral parameters in temporal lobe epilepsy. We developed status epilepticus model using lithium-pilocarpine. The assessment of neurobehavioral parameters was done followed by histopathological examination and immunohistochemistry staining of hippocampus as well as RT-qPCR and western blotting to analyse gene and protein expression. In SE rats, seizure score and frequency were significantly high compared to control rats, with notable changes in neurobehavioral parameters and neuronal damage observed in hippocampus. Our study also revealed a substantial upregulation of the Wnt/β-catenin pathway in chronic epilepsy, as evidenced by gene and protein expression studies. Sulindac emerged as a potent modulator, reducing seizure score, frequency, neuronal damage, apoptosis, and downregulating the Wnt/β-catenin pathway when compared to 6-BIO. Our findings emphasize the potential of GSK-3β and β-catenin as promising drug targets for chronic temporal lobe epilepsy, offering valuable treatment options for chronic epilepsy. The promising outcomes with sulindac encourages further exploration in clinical trials to assess its therapeutic potential.
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Affiliation(s)
- Vipasha Gautam
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Kajal Rawat
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Arushi Sandhu
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Anil Kumar
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Parampreet Singh Kharbanda
- Department of Neurology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Bikash Medhi
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Alka Bhatia
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Lekha Saha
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
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Gautam V, Rawat K, Sandhu A, Medhi B, Bhatia A, Kharbanda PS, Saha L. Evaluation of Wnt/β-catenin signaling and its modulators in repeated dose lithium-pilocarpine rat model of status epilepticus: An acute phase study. Eur J Pharmacol 2024; 966:176375. [PMID: 38307381 DOI: 10.1016/j.ejphar.2024.176375] [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: 11/07/2023] [Revised: 01/13/2024] [Accepted: 01/30/2024] [Indexed: 02/04/2024]
Abstract
The role of the Wnt/β-catenin signaling pathway in epilepsy and the effects of its modulators as efficacious treatment options, though postulated, has not been sufficiently investigated. We evaluated the involvement of β-catenin and GSK-3β, the significant proteins in this pathway, in the lithium chloride-pilocarpine-induced status epilepticus model in rodents to study acute phase of temporal lobe epilepsy (TLE). The modulators studied were 6-BIO, a GSK-3β inhibitor and Sulindac, a Dvl protein inhibitor. The disease group exhibited increased seizure score and seizure frequency, and the assessment of neurobehavioral parameters indicated notable alterations. Furthermore, histopathological examination of hippocampal brain tissues revealed significant neurodegeneration. Immunohistochemical study of hippocampus revealed neurogenesis in 6-BIO and sulindac groups. The gene and protein expression by RT-qPCR and western blotting studies indicated Wnt/β-catenin pathway downregulation and increased apoptosis in the acute phase of TLE. 6-BIO was very efficient in upregulating the Wnt pathway, decreasing neuronal damage, increasing neurogenesis in hippocampus and decreasing seizure score and frequency in comparison to sulindac. This suggests that both GSK-3β and β-catenin are potential and novel drug targets for acute phase of TLE, and treatment options targeting these proteins could be beneficial in successfully managing acute epilepsy. Further evaluation of 6-BIO to explore its therapeutic potential in other models of epilepsy should be conducted.
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Affiliation(s)
- Vipasha Gautam
- Department of Pharmacology, PGIMER Chandigarh, 160012, India
| | - Kajal Rawat
- Department of Pharmacology, PGIMER Chandigarh, 160012, India
| | - Arushi Sandhu
- Department of Pharmacology, PGIMER Chandigarh, 160012, India
| | - Bikash Medhi
- Department of Pharmacology, PGIMER Chandigarh, 160012, India
| | - Alka Bhatia
- Department of Experimental Medicine and Biotechnology, PGIMER, Chandigarh, 160012, India
| | | | - Lekha Saha
- Department of Pharmacology, PGIMER Chandigarh, 160012, India.
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Modi JP, Shen W, Menzie-Suderam J, Xu H, Lin CH, Tao R, Prentice HM, Schloss J, Wu JY. The Role of NMDA Receptor Partial Antagonist, Carbamathione, as a Therapeutic Agent for Transient Global Ischemia. Biomedicines 2023; 11:1885. [PMID: 37509524 PMCID: PMC10377037 DOI: 10.3390/biomedicines11071885] [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: 05/29/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Carbamathione (Carb), an NMDA glutamate receptor partial antagonist, has potent neuroprotective functions against hypoxia- or ischemia-induced neuronal injury in cell- or animal-based stroke models. We used PC-12 cell cultures as a cell-based model and bilateral carotid artery occlusion (BCAO) for stroke. Whole-cell patch clamp recording in the mouse retinal ganglion cells was performed. Key proteins involved in apoptosis, endoplasmic reticulum (ER) stress, and heat shock proteins were analyzed using immunoblotting. Carb is effective in protecting PC12 cells against glutamate- or hypoxia-induced cell injury. Electrophysiological results show that Carb attenuates NMDA-mediated glutamate currents in the retinal ganglion cells, which results in activation of the AKT signaling pathway and increased expression of pro-cell survival biomarkers, e.g., Hsp 27, P-AKT, and Bcl2 and decreased expression of pro-cell death markers, e.g., Beclin 1, Bax, and Cleaved caspase 3, and ER stress markers, e.g., CHOP, IRE1, XBP1, ATF 4, and eIF2α. Using the BCAO animal stroke model, we found that Carb reduced the brain infarct volume and decreased levels of ER stress markers, GRP 78, CHOP, and at the behavioral level, e.g., a decrease in asymmetric turns and an increase in locomotor activity. These findings for Carb provide promising and rational strategies for stroke therapy.
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Affiliation(s)
- Jigar Pravinchandra Modi
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Center of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Wen Shen
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Janet Menzie-Suderam
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Hongyuan Xu
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Chun-Hua Lin
- Department of Nursing, Kang-Ning University, Taipei 11485, Taiwan
| | - Rui Tao
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Howard M Prentice
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Center of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - John Schloss
- Department of Pharmaceutical Science, American University of Health Sciences, Signal Hill, CA 90755, USA
| | - Jang-Yen Wu
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Center of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL 33431, USA
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Strong R, Miller RA, Cheng CJ, Nelson JF, Gelfond J, Allani SK, Diaz V, Dorigatti AO, Dorigatti J, Fernandez E, Galecki A, Ginsburg B, Hamilton KL, Javors MA, Kornfeld K, Kaeberlein M, Kumar S, Lombard DB, Lopez‐Cruzan M, Miller BF, Rabinovitch P, Reifsnyder P, Rosenthal NA, Bogue MA, Salmon AB, Suh Y, Verdin E, Weissbach H, Newman J, Maccchiarini F, Harrison DE. Lifespan benefits for the combination of rapamycin plus acarbose and for captopril in genetically heterogeneous mice. Aging Cell 2022; 21:e13724. [PMID: 36179270 PMCID: PMC9741502 DOI: 10.1111/acel.13724] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 09/01/2022] [Accepted: 09/09/2022] [Indexed: 02/04/2023] Open
Abstract
Mice bred in 2017 and entered into the C2017 cohort were tested for possible lifespan benefits of (R/S)-1,3-butanediol (BD), captopril (Capt), leucine (Leu), the Nrf2-activating botanical mixture PB125, sulindac, syringaresinol, or the combination of rapamycin and acarbose started at 9 or 16 months of age (RaAc9, RaAc16). In male mice, the combination of Rapa and Aca started at 9 months and led to a longer lifespan than in either of the two prior cohorts of mice treated with Rapa only, suggesting that this drug combination was more potent than either of its components used alone. In females, lifespan in mice receiving both drugs was neither higher nor lower than that seen previously in Rapa only, perhaps reflecting the limited survival benefits seen in prior cohorts of females receiving Aca alone. Capt led to a significant, though small (4% or 5%), increase in female lifespan. Capt also showed some possible benefits in male mice, but the interpretation was complicated by the unusually low survival of controls at one of the three test sites. BD seemed to produce a small (2%) increase in females, but only if the analysis included data from the site with unusually short-lived controls. None of the other 4 tested agents led to any lifespan benefit. The C2017 ITP dataset shows that combinations of anti-aging drugs may have effects that surpass the benefits produced by either drug used alone, and that additional studies of captopril, over a wider range of doses, are likely to be rewarding.
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Affiliation(s)
- Randy Strong
- Geriatric Research, Education and Clinical Center and Research Service, South Texas Veterans Health Care System, Department of PharmacologyBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - Richard A. Miller
- Department of Pathology and Geriatrics CenterUniversity of MichiganAnn ArborMichiganUSA
| | - Catherine J. Cheng
- Department of Cellular and Integrative PhysiologyBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - James F. Nelson
- Department of Cellular and Integrative PhysiologyBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - Jonathan Gelfond
- Department of Population Health SciencesUniversity of Texas Health Science Center at San AntonioTexasUSA
| | | | - Vivian Diaz
- Department of Cellular and Integrative PhysiologyBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - Angela Olsen Dorigatti
- Geriatric Research, Education and Clinical Center, South Texas Veterans Health Care System, Department of Molecular MedicineBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - Jonathan Dorigatti
- Geriatric Research, Education and Clinical Center, South Texas Veterans Health Care System, Department of Molecular MedicineBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - Elizabeth Fernandez
- Geriatric Research, Education and Clinical Center and Research Service, South Texas Veterans Health Care System, Department of PharmacologyBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - Andrzej Galecki
- Departments of Internal Medicine and BiostatisticsUniversity of Michigan School of Medicine and School of Public HealthAnn ArborMichiganUSA
| | - Brett Ginsburg
- Department of PsychiatryUniversity of Texas Health Science Center at San AntonioTexasUSA
| | - Karyn L. Hamilton
- Department of Health and Exercise Science and the Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - Martin A. Javors
- Department of PsychiatryUniversity of Texas Health Science Center at San AntonioTexasUSA
| | - Kerry Kornfeld
- Department of Developmental BiologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Matt Kaeberlein
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
| | - Suja Kumar
- Department of Internal MedicineUniversity of MichiganAnn ArborMichiganUSA
| | - David B. Lombard
- Department of Pathology and Geriatrics CenterUniversity of MichiganAnn ArborMichiganUSA
| | - Marisa Lopez‐Cruzan
- Department of PsychiatryUniversity of Texas Health Science Center at San AntonioTexasUSA
| | - Benjamin F. Miller
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma Nathan Shock Center, Oklahoma Center for GeroscienceHarold Hamm Diabetes CenterOklahoma CityOklahomaUSA
| | - Peter Rabinovitch
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
| | | | | | | | - Adam B. Salmon
- Geriatric Research, Education and Clinical Center, South Texas Veterans Health Care System, Department of Molecular MedicineBarshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San AntonioTexasUSA
| | - Yousin Suh
- Department of Obstetrics & Gynecology, Department of Genetics & Development, Reproductive Aging ProgramVagelos College of Physicians & Surgeons Columbia UniversityNew YorkNew YorkUSA
| | - Eric Verdin
- Buck Institute for Research on AgingNovatoCaliforniaUSA
- Division of GeriatricsUniversity of California San FranciscoCaliforniaUSA
| | | | - John Newman
- Buck Institute for Research on AgingNovatoCaliforniaUSA
- Division of GeriatricsUniversity of California San FranciscoCaliforniaUSA
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Menet R, Lecordier S, ElAli A. Wnt Pathway: An Emerging Player in Vascular and Traumatic Mediated Brain Injuries. Front Physiol 2020; 11:565667. [PMID: 33071819 PMCID: PMC7530281 DOI: 10.3389/fphys.2020.565667] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 08/18/2020] [Indexed: 12/13/2022] Open
Abstract
The Wnt pathway, which comprises the canonical and non-canonical pathways, is an evolutionarily conserved mechanism that regulates crucial biological aspects throughout the development and adulthood. Emergence and patterning of the nervous and vascular systems are intimately coordinated, a process in which Wnt pathway plays particularly important roles. In the brain, Wnt ligands activate a cell-specific surface receptor complex to induce intracellular signaling cascades regulating neurogenesis, synaptogenesis, neuronal plasticity, synaptic plasticity, angiogenesis, vascular stabilization, and inflammation. The Wnt pathway is tightly regulated in the adult brain to maintain neurovascular functions. Historically, research in neuroscience has emphasized essentially on investigating the pathway in neurodegenerative disorders. Nonetheless, emerging findings have demonstrated that the pathway is deregulated in vascular- and traumatic-mediated brain injuries. These findings are suggesting that the pathway constitutes a promising target for the development of novel therapeutic protective and restorative interventions. Yet, targeting a complex multifunctional signal transduction pathway remains a major challenge. The review aims to summarize the current knowledge regarding the implication of Wnt pathway in the pathobiology of ischemic and hemorrhagic stroke, as well as traumatic brain injury (TBI). Furthermore, the review will present the strategies used so far to manipulate the pathway for therapeutic purposes as to highlight potential future directions.
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Affiliation(s)
- Romain Menet
- Neuroscience Axis, Research Center of CHU de Québec - Université Laval, Quebec City, QC, Canada.,Department of Psychiatry and Neuroscience, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Sarah Lecordier
- Neuroscience Axis, Research Center of CHU de Québec - Université Laval, Quebec City, QC, Canada.,Department of Psychiatry and Neuroscience, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Ayman ElAli
- Neuroscience Axis, Research Center of CHU de Québec - Université Laval, Quebec City, QC, Canada.,Department of Psychiatry and Neuroscience, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
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Modi J, Menzie-Suderam J, Xu H, Trujillo P, Medley K, Marshall ML, Tao R, Prentice H, Wu JY. Mode of action of granulocyte-colony stimulating factor (G-CSF) as a novel therapy for stroke in a mouse model. J Biomed Sci 2020; 27:19. [PMID: 31907023 PMCID: PMC6943893 DOI: 10.1186/s12929-019-0597-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 11/27/2019] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The FDA approved drug granulocyte-colony stimulating factor (G-CSF) displays anti-apoptotic and immunomodulatory properties with neurogenesis and angiogenic functions. It is known to demonstrate neuroprotective mechanisms against ischemic global stroke. Autophagy is a method for the degradation of intracellular components and in particular, unrestrained autophagy may lead to uncontrolled digestion of affected neurons as well as neuronal death in cerebral ischemia. Mitochondrial dynamics is vital for the regulation of cell survival and death after cerebral ischemia and an early upstream event in neuronal death is mitochondrial fission. We examined the pro-survival mechanisms of G-CSF against apoptosis resulting from autophagy, mitochondrial stress and endoplasmic reticulum (ER) stress. METHODS Male Swiss Webster mice (20 weeks of age) were subjected to bilateral common carotid artery occlusion (BCAO) for 30 min. After occlusion, mice were injected with G-CSF (50 μg/kg) subcutaneously for 4 days. Behavioral analysis was carried out using the corner test and locomotor activity test before animals were sacrificed on day 4 or day 7. Key proteins in ER stress, autophagy and mitochondrial stress induced apoptosis were analyzed by immunoblotting. RESULTS G-CSF improved neurological deficits and improved behavioral performance on corner and locomotor test. G-CSF binds to G-CSF receptors and its activation leads to upregulation of Akt phosphorylation (P-Akt) which in turn decreases levels of the ER stress sensor, GRP 78 and expression of proteins involved in ER stress apoptosis pathway; ATF6, ATF4, eIF2α, XBP1, Caspase 12 and CHOP. G-CSF treatment significantly decreased Beclin-1, an autophagy marker, and decreased mitochondrial stress biomarkers DRP1 and P53. G-CSF also up-regulated the mitochondrial fusion protein, OPA1 and anti-apoptotic protein Bcl-2 while down-regulating the pro-apoptotic proteins Bax, Bak and PUMA. CONCLUSIONS G-CSF is an endogenous ligand in the CNS that has a dual activity that is beneficial both in reducing acute neuronal degeneration and adding to long-term plasticity after cerebral ischemia. G-CSF treatment exerts neuroprotective effects on damaged neurons through the suppression of the ER stress and mitochondrial stress and maintains cellular homeostasis by decreasing pro-apoptotic proteins and increasing of anti-apoptotic proteins.
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Affiliation(s)
- Jigar Modi
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
- Center of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA
| | - Janet Menzie-Suderam
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Hongyuan Xu
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Paola Trujillo
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Kristen Medley
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | | | - Rui Tao
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Howard Prentice
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA.
- Center of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA.
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL, 33431, USA.
| | - Jang-Yen Wu
- Department of Biomedical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA.
- Center of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA.
- Program in Integrative Biology, Florida Atlantic University, Boca Raton, FL, 33431, USA.
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Prentice H, Gharibani PM, Ma Z, Alexandrescu A, Genova R, Chen PC, Modi J, Menzie J, Pan C, Tao R, Wu JY. Neuroprotective Functions Through Inhibition of ER Stress by Taurine or Taurine Combination Treatments in a Rat Stroke Model. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 1:193-205. [PMID: 28849455 DOI: 10.1007/978-94-024-1079-2_17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Taurine, as a free amino acid, is found at high levels in many tissues including brain, heart and skeletal muscle and is known to demonstrate neuroprotective effects in a range of disease conditions including stroke and neurodegenerative disease. Using in vitro culture systems we have demonstrated that taurine can elicit protection against endoplasmic reticulum stress (ER stress) from glutamate excitotoxicity or from excessive reactive oxygen species in PC12 cells or rat neuronal cultures. In our current investigation we hypothesized that taurine treatment after stroke in the rat middle cerebral artery occlusion (MCAO) model would render protection against ER stress processes as reflected in decreased levels of expression of ER stress pathway components. We demonstrated that taurine elicited high level protection and inhibited both ATF-6 and IRE-1 ER stress pathway components. As ischemic stroke has a complex pathology it is likely that certain combination treatment approaches targeting multiple disease mechanisms may have excellent potential for efficacy. We have previously employed the partial NMDA antagonist DETC-MeSO to render protection against in vivo ischemic stroke using a rat cerebral ischemia model. Here we tested administration of subcutaneous administration of 0.56 mg/kg DETC-MeSO or 40 mg/kg of taurine separately or as combined treatment after a 120 min cerebral ischemia in the rat MCAO model. Neither drug alone demonstrated protection at the low doses employed. Remarkably however the combination of low dose DETC-MeSO plus low dose taurine conferred a diminished infarct size and an enhanced Neuroscore (reflecting decreased neurological deficit). Analysis of ER stress markers pPERK, peIF-2-alpha and cleaved ATF-6 all showed decreased expression demonstrating that all 3 ER stress pathways were inhibited concurrent with a synergistic protective effect by the post-stroke administration of this DETC-MeSO-taurine combination treatment.
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Affiliation(s)
- Howard Prentice
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA.
| | - Payam M Gharibani
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Zhiyuan Ma
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Anamaria Alexandrescu
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Rafaella Genova
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Po-Chih Chen
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Jigar Modi
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Janet Menzie
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Chunliu Pan
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Rui Tao
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA.
| | - Jang-Yen Wu
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA.
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Menzie-Suderam JM, Mohammad-Gharibani P, Modi J, Ma Z, Tao R, Prentice H, Wu JY. Granulocyte-colony stimulating factor protects against endoplasmic reticulum stress in an experimental model of stroke. Brain Res 2018; 1682:1-13. [DOI: 10.1016/j.brainres.2017.12.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 12/15/2017] [Accepted: 12/18/2017] [Indexed: 10/18/2022]
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Fedorchenko KY, Ryabokon’ AM, Kononikhin AS, Mitrofanov SI, Mikhant’eva EA, Spasskii AI, Sukhodolov IR, Popov IA, Polyakov AV, Larina IM, Nikolaev EN, Varfolomeev SD. The effect of space flight on the protein composition of the exhaled breath condensate of cosmonauts. Russ Chem Bull 2017. [DOI: 10.1007/s11172-016-1645-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Activation of Brain L-glutamate Decarboxylase 65 Isoform (GAD65) by Phosphorylation at Threonine 95 (T95). Mol Neurobiol 2016; 54:866-873. [DOI: 10.1007/s12035-015-9633-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 12/15/2015] [Indexed: 11/26/2022]
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Comparison between single and combined post-treatment with S-Methyl-N,N-diethylthiolcarbamate sulfoxide and taurine following transient focal cerebral ischemia in rat brain. Neuroscience 2015; 300:460-73. [DOI: 10.1016/j.neuroscience.2015.05.042] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 05/15/2015] [Accepted: 05/18/2015] [Indexed: 01/22/2023]
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Yang T, Sun S, Wang T, Tong X, Bi J, Wang Y, Sun Z. Piperlonguminine is neuroprotective in experimental rat stroke. Int Immunopharmacol 2014; 23:447-51. [PMID: 25257731 DOI: 10.1016/j.intimp.2014.09.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 09/09/2014] [Accepted: 09/10/2014] [Indexed: 11/24/2022]
Abstract
Inflammatory damage plays an important role in cerebral ischemic pathogenesis and may represent a target for treatment. Piperlonguminine (PE) has been proved to have anti-inflammatory actions. In this study, we investigated the effects of PE on cultured neuronal cell line, SH-SY5Y in vitro and experimental rat ischemic stroke in vivo. For oxygen-glucose deprivation (OGD) and tumor necrosis factor-α (TNF-α) stimulated SH-SY5Y cell line in vitro, SH-SY5Y cells were incubated with PE. In vivo, rats were subjected to middle cerebral artery occlusion (MACO) for 1h, followed by reperfusion for 23 h. The results of this study showed that treatment of SH-SY5Y cells with PE reduced the OGD-induced cytotoxicity and apoptosis and blocked TNF-α-induced activation of NF-κB and MAPK. Intraperitoneal injection of PE (2.4 mg/kg) produced a significant neuroprotective potential in rats with cerebral ischemia. PE attenuated neurological deficit scores, brain infarct volume and brain water content in rats, and inhibited activation of NF-κB and MAPK. These data show that PE protects the brain against ischemic cerebral injury via alleviating blood-brain barrier (BBB) breakdown, which may be mediated via inhibiting NF-κB and MAPK signaling pathways.
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Affiliation(s)
- Tiansong Yang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, PR China
| | - Shixiao Sun
- Department of Physiology, Heilongjiang University of Chinese Medicine, PR China
| | - Tiegang Wang
- The First Affiliated Hospital, Harbin Medical University, Harbin, PR China
| | - Xin Tong
- Atlantic Institute of Oriental Medicine (ATOM), FL, USA
| | - Junhui Bi
- Department of Formulas of Chinese Medicine, Heilongjiang University of Chinese Medicine, PR China
| | - Yulin Wang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, PR China
| | - Zhongren Sun
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, PR China; Department of Acupuncture, Heilongjiang University of Chinese Medicine, PR China.
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Modi JP, Prentice H, Wu JY. Sulindac for stroke treatment: neuroprotective mechanism and therapy. Neural Regen Res 2014; 9:2023-5. [PMID: 25657710 PMCID: PMC4316457 DOI: 10.4103/1673-5374.147919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2014] [Indexed: 11/30/2022] Open
Affiliation(s)
- Jigar Pravinchandra Modi
- College of Medicine, Florida Atlantic University, Boca Raton, FL, USA ; Centre of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA
| | - Howard Prentice
- College of Medicine, Florida Atlantic University, Boca Raton, FL, USA ; Program in Integrative Biology, Florida Atlantic University, FL, USA ; Centre of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA
| | - Jang-Yen Wu
- College of Medicine, Florida Atlantic University, Boca Raton, FL, USA ; Program in Integrative Biology, Florida Atlantic University, FL, USA ; Centre of Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA
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