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Luo H, Yang L, Ma D, Bao X, Zhang G, Li B, Cao S, Liu S, Bao L, Jing E, Zheng Y. Investigation of T cell-related hub genes in diabetic nephropathy by bioinformatics analysis and experiment validation. Mol Immunol 2024; 166:65-78. [PMID: 38244370 DOI: 10.1016/j.molimm.2024.01.003] [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: 09/15/2023] [Revised: 12/13/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024]
Abstract
Diabetic nephropathy(DN) remains a significant risk factor for cardiovascular and all-cause mortality, and end-stage renal disease (ESRD) associated with it is growing in prevalence.However, there is absolutely no curative strategy for DN. We subjected db/db and control mouse kidneys to transcriptional sequencing analysis to obtain transcriptome expression profile data in the diabetic nephropathy.We next performed differential analysis of db/db and control mice kidney sequencing data to obtain differentially expressed genes. The differential expressed genes were intersected with the oxidative stress and inflammatory response related genes derived from the MGI/MsiDB gene set to yield oxidative stress inflammatory response related differential 122 genes (OIRDEGs). To further clarify the biological functions of DEGs, we conducted GOKEGG analysis and obtained the top 20 genes by five computational algorithms of the cytohubba plugin via cytoscape, respectively. The genes obtained by the five algorithms were intersected and the intersection genes were considered as key genes,including Cd40lg, Il2rb, Lck, Il2rg, Zap70, Serpinb1a. Also,we used GSEA and immune infiltration analysis to clarify the biological signaling pathways and immune cell infiltration that are substantial in the diabetic nephropathy.Correlation studies of key genes with immune cell infiltration revealed that they were correlated with the majority types of T cells while only with two types of B cells.Then, we predicted miRNA and TF for the key genes and constructed the interaction network. Finally, the expression differences of key genes were examined by validation dataset and RT-PCR experiment.In conclusion,we have identified key genes associated with T cell immune response in a diabetic nephropathy model, which bear significance in the etiopathogenesis of immunological injury in diabetic nephropathy and provide an innovative proposal for the recognition and management of DN.
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Affiliation(s)
- Hongyan Luo
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; The Third Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Lirong Yang
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China
| | - Danna Ma
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; Department of Nephrology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xi Bao
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; The Third Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Guoqing Zhang
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; The Third Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Bo Li
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shilu Cao
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; The Third Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Shunyao Liu
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; The Third Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Li Bao
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; The Third Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Jing E
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; Department of Nephrology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yali Zheng
- Department of Nephrology, Ningxia Medical University Affiliated People's Hospital of Autonomous Region, Yinchuan, China; The Third Clinical Medical College, Ningxia Medical University, Yinchuan, China.
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Liu Y, Chen S, Liu S, Wallace KL, Zille M, Zhang J, Wang J, Jiang C. T-cell receptor signaling modulated by the co-receptors: Potential targets for stroke treatment. Pharmacol Res 2023; 192:106797. [PMID: 37211238 DOI: 10.1016/j.phrs.2023.106797] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/02/2023] [Accepted: 05/16/2023] [Indexed: 05/23/2023]
Abstract
Stroke is a severe and life-threatening disease, necessitating more research on new treatment strategies. Infiltrated T lymphocytes, an essential adaptive immune cell with extensive effector function, are crucially involved in post-stroke inflammation. Immediately after the initiation of the innate immune response triggered by microglia/macrophages, the adaptive immune response associated with T lymphocytes also participates in the complex pathophysiology of stroke and partially informs the outcome of stroke. Preclinical and clinical studies have revealed the conflicting roles of T cells in post-stroke inflammation and as potential therapeutic targets. Therefore, exploring the mechanisms that underlie the adaptive immune response associated with T lymphocytes in stroke is essential. The T-cell receptor (TCR) and its downstream signaling regulate T lymphocyte differentiation and activation. This review comprehensively summarizes the various molecules that regulate TCR signaling and the T-cell response. It covers both the co-stimulatory and co-inhibitory molecules and their roles in stroke. Because immunoregulatory therapies targeting TCR and its mediators have achieved great success in some proliferative diseases, this article also summarizes the advances in therapeutic strategies related to TCR signaling in lymphocytes after stroke, which can facilitate translation. DATA AVAILABILITY: No data was used for the research described in the article.
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Affiliation(s)
- Yuanyuan Liu
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, P. R. China
| | - Shuai Chen
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, P. R. China
| | - Simon Liu
- Medical Genomics Unit, National Human Genome Research Institute, Bethesda, MD, 20814, USA
| | - Kevin L Wallace
- College of Mathematical and Natural Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Marietta Zille
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, A-1090 Vienna, Austria
| | - Jiewen Zhang
- Department of Neurology, People's Hospital of Zhengzhou University, 450000, Zhengzhou, P. R. China.
| | - Jian Wang
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, P. R. China; Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, 450001, Zhengzhou, P. R. China.
| | - Chao Jiang
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, P. R. China.
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Na,K-ATPase Acts as a Beta-Amyloid Receptor Triggering Src Kinase Activation. Cells 2022; 11:cells11172753. [PMID: 36078160 PMCID: PMC9455167 DOI: 10.3390/cells11172753] [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: 08/03/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022] Open
Abstract
Beta-amyloid (Aβ) has a dual role, both as an important factor in the pathology of Alzheimer's disease and as a regulator in brain physiology. The inhibitory effect of Aβ42 oligomers on Na,K-ATPase contributes to neuronal dysfunction in Alzheimer's disease. Still, the physiological role of the monomeric form of Aβ42 interaction with Na,K-ATPase remains unclear. We report that Na,K-ATPase serves as a receptor for Aβ42 monomer, triggering Src kinase activation. The co-localization of Aβ42 with α1- and β1-subunits of Na,K-ATPase, and Na,K-ATPase with Src kinase in SH-SY5Y neuroblastoma cells, was observed. Treatment of cells with 100 nM Aβ42 causes Src kinase activation, but does not alter Na,K-ATPase transport activity. The interaction of Aβ42 with α1β1 Na,K-ATPase isozyme leads to activation of Src kinase associated with the enzyme. Notably, prevention of Na,K-ATPase:Src kinase interaction by a specific inhibitor pNaKtide disrupts the Aβ-induced Src kinase activation. Stimulatory effect of Aβ42 on Src kinase was lost under hypoxic conditions, which was similar to the effect of specific Na,K-ATPase ligands, the cardiotonic steroids. Our findings identify Na,K-ATPase as a Aβ42 receptor, thus opening a prospect on exploring the physiological and pathological Src kinase activation caused by Aβ42 in the nervous system.
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Yang T, Sun Y, Li Q, Li S, Shi Y, Leak RK, Chen J, Zhang F. Ischemic preconditioning provides long-lasting neuroprotection against ischemic stroke: The role of Nrf2. Exp Neurol 2019; 325:113142. [PMID: 31812555 DOI: 10.1016/j.expneurol.2019.113142] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 12/03/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE A major gap in the field of ischemic preconditioning (IPC) is whether or not long-lasting neuroprotection can be achieved. Moreover, the specific mechanisms underlying IPC and how they can be translated into the clinic remain uncertain. To fill these gaps, we tested the hypothesis that IPC exerts long-lasting structural and functional neuroprotection against ischemic stroke through the master gatekeeper of antioxidant defenses, nuclear factor erythroid 2-related factor 2 (Nrf2). We also tested whether the brain could be pharmaceutically preconditioned with a potent and blood-brain barrier-permeable Nrf2 activator, 2-cyano-3,12-dioxo-oleana-1,9(11)-dien-28-trifluoethyl amide (CDDO-TFEA). METHODS IPC was induced by transient middle cerebral artery occlusion (MCAO) for 12 min, and ischemic stroke was generated by MCAO for 60 min in wild-type (WT) or Nrf2 knockout (KO) mice. Sensorimotor function, learning/memory skills, and brain tissue loss were measured up to 35 days after stroke. Primary rodent cortical neurons from wildtype (WT) and Nrf2 KO mice were subjected to lethal oxygen-glucose deprivation (OGD) or a brief OGD episode as a preconditioning (PC) stimulus before OGD. Cell viability/death, lipid electrophile generation, and Nrf2 activation were measured. CDDO-TFEA or its vehicle was administered in vivo for three consecutive days before MCAO. Tissue loss and neurological tests were performed 35 days after stroke. RESULTS IPC significantly reduced sensorimotor deficits, post-stroke cognitive impairments, and brain tissue loss, 35 days after MCAO in WT mice. These enduring protective effects of IPC were inhibited in Nrf2 KO mice. In neuronal cultures, PC also endowed primary neurons with ischemic tolerance against OGD-induced cell death, an effect that was abolished by loss of Nrf2 expression in KO neurons. PC induced the generation of low levels of lipid electrophiles and led to activation of the Nrf2 pathway. The mechanism underlying IPC may be translatable, as exogenous administration of the Nrf2 activator CDDO-TFEA significantly reduced neurological dysfunction and ischemic brain damage after MCAO. CONCLUSIONS IPC provides long-lasting neuroprotection against ischemic brain injury and post-stroke cognitive dysfunction. Nrf2 activation plays a key role in this beneficial outcome and is a promising therapeutic target for the attenuation of ischemic brain injury.
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Affiliation(s)
- Tuo Yang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yang Sun
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Qianqian Li
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Senmiao Li
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yejie Shi
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rehana K Leak
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, USA
| | - Jun Chen
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA; Geriatric Research, Educational and Clinical Center, Veterans Affairs Pittsburgh Health Care System, PA, USA
| | - Feng Zhang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA.
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Xu J, Khoury N, Jackson CW, Escobar I, Stegelmann SD, Dave KR, Perez-Pinzon MA. Ischemic Neuroprotectant PKCε Restores Mitochondrial Glutamate Oxaloacetate Transaminase in the Neuronal NADH Shuttle after Ischemic Injury. Transl Stroke Res 2019; 11:418-432. [PMID: 31473978 DOI: 10.1007/s12975-019-00729-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 12/17/2022]
Abstract
The preservation of mitochondrial function is a major protective strategy for cerebral ischemic injuries. Previously, our laboratory demonstrated that protein kinase C epsilon (PKCε) promotes the synthesis of mitochondrial nicotinamide adenine dinucleotide (NAD+). NAD+ along with its reducing equivalent, NADH, is an essential co-factor needed for energy production from glycolysis and oxidative phosphorylation. Yet, NAD+/NADH are impermeable to the inner mitochondrial membrane and their import into the mitochondria requires the activity of specific shuttles. The most important neuronal NAD+/NADH shuttle is the malate-aspartate shuttle (MAS). The MAS has been implicated in synaptic function and is potentially dysregulated during cerebral ischemia. The aim of this study was to determine if metabolic changes induced by PKCε preconditioning involved regulation of the MAS. Using primary neuronal cultures, we observed that the activation of PKCε enhanced mitochondrial respiration and glycolysis in vitro. Conversely, inhibition of the MAS resulted in decreased oxidative phosphorylation and glycolytic capacity. We further demonstrated that activation of PKCε increased the phosphorylation of key components of the MAS in rat brain synaptosomal fractions. Additionally, PKCε increased the enzyme activity of glutamic oxaloacetic transaminase 2 (GOT2), an effect that was dependent on the import of PKCε into the mitochondria and phosphorylation of GOT2. Furthermore, PKCε activation was able to rescue decreased GOT2 activity induced by ischemia. These findings reveal novel protective targets and mechanisms against ischemic injury, which involves PKCε-mediated phosphorylation and activation of GOT2 in the MAS.
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Affiliation(s)
- Jing Xu
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Nathalie Khoury
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Charles W Jackson
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Iris Escobar
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Samuel D Stegelmann
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
| | - Kunjan R Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Miguel A Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA.
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.
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6
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Beyond TCR Signaling: Emerging Functions of Lck in Cancer and Immunotherapy. Int J Mol Sci 2019; 20:ijms20143500. [PMID: 31315298 PMCID: PMC6679228 DOI: 10.3390/ijms20143500] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/08/2019] [Accepted: 07/12/2019] [Indexed: 01/10/2023] Open
Abstract
In recent years, the lymphocyte-specific protein tyrosine kinase (Lck) has emerged as one of the key molecules regulating T-cell functions. Studies using Lck knock-out mice or Lck-deficient T-cell lines have shown that Lck regulates the initiation of TCR signaling, T-cell development, and T-cell homeostasis. Because of the crucial role of Lck in T-cell responses, strategies have been employed to redirect Lck activity to improve the efficacy of chimeric antigen receptors (CARs) and to potentiate T-cell responses in cancer immunotherapy. In addition to the well-studied role of Lck in T cells, evidence has been accumulated suggesting that Lck is also expressed in the brain and in tumor cells, where it actively takes part in signaling processes regulating cellular functions like proliferation, survival and memory. Therefore, Lck has emerged as a novel druggable target molecule for the treatment of cancer and neuronal diseases. In this review, we will focus on these new functions of Lck.
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7
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Han N, Wang Z, Wang G, Yu J, Chen C, Huang H, Xu R. Evaluation of a self-regulated in vitro hypoxic system by using chemical reactions. Biochem Biophys Res Commun 2018; 500:772-776. [PMID: 29680660 DOI: 10.1016/j.bbrc.2018.04.152] [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: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 10/17/2022]
Abstract
In this study, we established an in vitro hypoxic system driven by a self-regulated chemical reaction that proved effective for cell culture. The hypoxic device was modified from a 1.5 L polypropylene preservation box normally employed for food storage. Pyrogallic acid, sodium hydroxide, and sodium carbonate were dissolved in water and injected into the box. Sodium dihydrogen phosphate solution was injected into the box after 15 min. We measured the concentrations of oxygen and carbon dioxide in the box to determine viability of the hypoxic system. It maintained low levels of oxygen less than 0.2% and stabilizing levels of carbon dioxide at 5% for at least 96 h. Therefore, this device sustained a stable hypoxic environment that may be applicable for cell culture and in vitro studies of hypoxia.
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Affiliation(s)
- Ning Han
- Department of Neurosurgery, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China; Department of Neurosurgery, Bayi Brain Hospital, PLA Army General Hospital, Beijing, PR China; Department of Neurosurgery, Chinese PLA Tianjin Sanatorium, 464 Hospital, Tianjin, PR China
| | - Zhaotao Wang
- Department of Neurosurgery, Bayi Brain Hospital, PLA Army General Hospital, Beijing, PR China
| | - Guoqi Wang
- Department of Neurosurgery, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China
| | - Jun Yu
- Department of Neurosurgery, Chinese PLA Tianjin Sanatorium, 464 Hospital, Tianjin, PR China
| | - Chen Chen
- Department of Neurosurgery, Bayi Brain Hospital, PLA Army General Hospital, Beijing, PR China
| | - Huiyong Huang
- Department of Neurosurgery, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, PR China.
| | - Ruxiang Xu
- Department of Neurosurgery, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China; Department of Neurosurgery, Bayi Brain Hospital, PLA Army General Hospital, Beijing, PR China.
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8
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Tyrosine kinase Fyn regulates iNOS expression in LPS-stimulated astrocytes via modulation of ERK phosphorylation. Biochem Biophys Res Commun 2018; 495:1214-1220. [DOI: 10.1016/j.bbrc.2017.11.143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 11/21/2017] [Indexed: 11/18/2022]
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Guan J, Du S, Lv T, Qu S, Fu Q, Yuan Y. Oxygen-glucose deprivation preconditioning protects neurons against oxygen-glucose deprivation/reperfusion induced injury via bone morphogenetic protein-7 mediated ERK, p38 and Smad signalling pathways. Clin Exp Pharmacol Physiol 2015; 43:125-34. [PMID: 26385023 DOI: 10.1111/1440-1681.12492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/06/2015] [Accepted: 09/11/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Junhong Guan
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Shaonan Du
- Department of Neurosurgery; Shenyang Red Cross Hospital; Shenyang China
| | - Tao Lv
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Shengtao Qu
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Qiang Fu
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Ye Yuan
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
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10
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Huang W, Lv B, Zeng H, Shi D, Liu Y, Chen F, Li F, Liu X, Zhu R, Yu L, Jiang X. Paracrine Factors Secreted by MSCs Promote Astrocyte Survival Associated With GFAP Downregulation After Ischemic Stroke via p38 MAPK and JNK. J Cell Physiol 2015; 230:2461-75. [DOI: 10.1002/jcp.24981] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 02/23/2015] [Accepted: 03/02/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Weiyi Huang
- The National Key Clinic Specialty; The Neurosurgery Institute of Guangdong Province; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration; Department of Neurosurgery, Zhujiang Hospital; Southern Medical University; Guangzhou China
| | - Bingke Lv
- The National Key Clinic Specialty; The Neurosurgery Institute of Guangdong Province; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration; Department of Neurosurgery, Zhujiang Hospital; Southern Medical University; Guangzhou China
| | - Huijun Zeng
- The National Key Clinic Specialty; The Neurosurgery Institute of Guangdong Province; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration; Department of Neurosurgery, Zhujiang Hospital; Southern Medical University; Guangzhou China
| | - Dandan Shi
- Department of Anatomy; Key Laboratory of Construction and Detection of Guangdong Province; Southern Medical University; Guangzhou China
| | - Yi Liu
- The National Key Clinic Specialty; The Neurosurgery Institute of Guangdong Province; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration; Department of Neurosurgery, Zhujiang Hospital; Southern Medical University; Guangzhou China
| | - Fanfan Chen
- The National Key Clinic Specialty; The Neurosurgery Institute of Guangdong Province; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration; Department of Neurosurgery, Zhujiang Hospital; Southern Medical University; Guangzhou China
| | - Feng Li
- The National Key Clinic Specialty; The Neurosurgery Institute of Guangdong Province; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration; Department of Neurosurgery, Zhujiang Hospital; Southern Medical University; Guangzhou China
| | - Xinghui Liu
- Department of Anatomy; Key Laboratory of Construction and Detection of Guangdong Province; Southern Medical University; Guangzhou China
| | - Rong Zhu
- Department of Anatomy; Key Laboratory of Construction and Detection of Guangdong Province; Southern Medical University; Guangzhou China
| | - Lei Yu
- Department of Anatomy; Key Laboratory of Construction and Detection of Guangdong Province; Southern Medical University; Guangzhou China
| | - Xiaodan Jiang
- The National Key Clinic Specialty; The Neurosurgery Institute of Guangdong Province; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration; Department of Neurosurgery, Zhujiang Hospital; Southern Medical University; Guangzhou China
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11
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Kumar A, Jaggi AS, Singh N. Pharmacology of Src family kinases and therapeutic implications of their modulators. Fundam Clin Pharmacol 2015; 29:115-30. [PMID: 25545125 DOI: 10.1111/fcp.12097] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 11/18/2014] [Accepted: 12/02/2014] [Indexed: 12/23/2022]
Abstract
Src family kinases (SFKs), the largest family of nonreceptor tyrosine kinases, include 10 members. Src was the first gene product discovered to have intrinsic protein tyrosine kinase activity. Src is widely expressed in many cell types and can have different locations within a cell; the subcellular location of Src can affect its function. Src can associate with cellular membranes, such as the plasma membrane, the perinuclear membrane, and the endosomal membrane. SFKs actions on mammalian cells are pleiotropic and include effect on cell morphology, adhesion, migration, invasion, proliferation, differentiation, and survival. SFKs at one end have been documented to play some important physiological functions; on the other end, they have been described in the pathophysiology of some disorders. In this review article, an exhaustive attempt has been made to unearth pharmacology of SFKs and therapeutic implications of SFKs modulators.
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Affiliation(s)
- Amit Kumar
- CNS and CVS Research Laboratory, Pharmacology Division, Department of Pharmaceutical Sciences and Drug Research, Faculty of Medicine, Punjabi University, Patiala, 147002, Punjab, India
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12
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Arandarcikaite O, Jokubka R, Borutaite V. Neuroprotective effects of nitric oxide donor NOC-18 against brain ischemia-induced mitochondrial damages: role of PKG and PKC. Neurosci Lett 2015; 586:65-70. [DOI: 10.1016/j.neulet.2014.09.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 09/01/2014] [Accepted: 09/03/2014] [Indexed: 10/24/2022]
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13
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Iqbal Hossain M, Hoque A, Lessene G, Aizuddin Kamaruddin M, Chu PWY, Ng IHW, Irtegun S, Ng DCH, Bogoyevitch MA, Burgess AW, Hill AF, Cheng HC. Dual role of Src kinase in governing neuronal survival. Brain Res 2014; 1594:1-14. [PMID: 25451123 DOI: 10.1016/j.brainres.2014.10.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 10/13/2014] [Accepted: 10/21/2014] [Indexed: 11/24/2022]
Abstract
BACKGROUND Src-family kinases (SFKs) are involved in neuronal survival and their aberrant regulation contributes to neuronal death. However, how they control neuronal survival and death remains unclear. OBJECTIVE To define the effect of inhibition of Src activity and expression on neuronal survival. RESULTS In agreement with our previous findings, we demonstrated that Src was cleaved by calpain to form a 52-kDa truncated fragment in neurons undergoing excitotoxic cell death, and expression of the recombinant truncated Src fragment induced neuronal death. The data confirm that the neurotoxic signaling pathways are intact in the neurons we used for our study. To define the functional role of neuronal SFKs, we treated these neurons with SFK inhibitors and discovered that the treatment induced cell death, suggesting that the catalytic activity of one or more of the neuronal SFKs is critical to neuronal survival. Using small hairpin RNAs that suppress Src expression, we demonstrated that Src is indispensable to neuronal survival. Additionally, we found that neuronal death induced by expression of the neurotoxic truncated Src mutant, treatment of SFK inhibitors or knock-down of Src expression caused inhibition of the neuroprotective protein kinases Erk1/2, or Akt. CONCLUSIONS Src is critical to both neuronal survival and death. Intact Src sustains neuronal survival. However, in the excitotoxic condition, calpain cleavage of Src generates a neurotoxic truncated Src fragment. Both intact Src and the neurotoxic truncated Src fragment exert their biological actions by controlling the activities of neuroprotective protein kinases.
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Affiliation(s)
- M Iqbal Hossain
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Ashfaqul Hoque
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Guillaume Lessene
- Divisions of Chemical and Structural Biology, Walter and Eliza Institute for Medical Research, Parkville 3010, VIC, Australia
| | - M Aizuddin Kamaruddin
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Percy W Y Chu
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Ivan H W Ng
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia; Department of Biochemistry and Molecular Biology, Monash University, Melbourne 3800, VIC, Australia
| | - Sevgi Irtegun
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Dominic C H Ng
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Marie A Bogoyevitch
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Antony W Burgess
- Divisions of Chemical and Structural Biology, Walter and Eliza Institute for Medical Research, Parkville 3010, VIC, Australia
| | - Andrew F Hill
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia
| | - Heung-Chin Cheng
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, VIC, Australia.
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14
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Shin JH, Park YM, Kim DH, Moon GJ, Bang OY, Ohn T, Kim HH. Ischemic brain extract increases SDF-1 expression in astrocytes through the CXCR2/miR-223/miR-27b pathway. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1839:826-36. [PMID: 24999035 DOI: 10.1016/j.bbagrm.2014.06.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/19/2014] [Accepted: 06/26/2014] [Indexed: 11/30/2022]
Abstract
Ischemic cerebral stroke is one of the leading global causes of mortality and morbidity. Ischemic preconditioning (IPC) refers to a sublethal ischemia and resulting in tolerance to subsequent severe ischemic injury. Although several pathways are reportedly involved in IPC-mediated neuroprotection, the functional role of astrocytes is not fully understood. Stromal cell-derived factor-1 (SDF-1), a CXC chemokine produced mainly in astrocytes, is a ligand for chemokine receptor CXCR4. SDF-1 is reported to play a critical role in neuroprotection after stroke by mediating the migration of neuronal progenitor cells. We hypothesized that stimuli derived from ischemic brain were involved in the protective effects of IPC. To investigate this hypothesis, the mechanism in which ischemic brain extract (IBE) induced SDF-1 expression was investigated in C6 astrocytoma cells. IBE treatment of C6 cells increased SDF-1 expression compared to that in untreated or normal brain extract (NBE)-treated cells by downregulating SDF-1 targeting miRNA, miR-27b. MiR-223 was inversely upregulated in IBE-treated cells; overexpression of miR-223 decreased the expression of miR-27b by suppressing IKKα expression. Analysis of cytokine array data revealed an IBE associated enhanced expression of CINC-1 (CXCL1) and LIX1 (CXCL5). Knockdown or inhibition of their receptor, CXCR2, abolished IBE-mediated increased expression of SDF-1. These results were confirmed in primary cultured astrocytes. Taken together, the data demonstrate that IBE-elicited signals increase SDF-1 expression through the CXCR2/miR-223/miR-27b pathway in C6 astrocytoma cells and primary astrocytes, supporting the view that increased expression of SDF-1 by ischemic insults is a possible mechanism underlying therapeutic application of IPC.
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Affiliation(s)
- Jin Hee Shin
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea
| | - Young Mi Park
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea
| | - Dong Hee Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea
| | - Gyeong Joon Moon
- Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea; Medical Research Institute, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea
| | - Oh Young Bang
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Department of Neurology, Samsung Medical Center, Seoul 135-710, South Korea
| | - Takbum Ohn
- Department of Cellular and Molecular Medicine, College of Medicine, Chosun University, Gwangju 501-759, South Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea.
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15
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Majid A. Neuroprotection in stroke: past, present, and future. ISRN NEUROLOGY 2014; 2014:515716. [PMID: 24579051 PMCID: PMC3918861 DOI: 10.1155/2014/515716] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 09/16/2013] [Indexed: 01/05/2023]
Abstract
Stroke is a devastating medical condition, killing millions of people each year and causing serious injury to many more. Despite advances in treatment, there is still little that can be done to prevent stroke-related brain damage. The concept of neuroprotection is a source of considerable interest in the search for novel therapies that have the potential to preserve brain tissue and improve overall outcome. Key points of intervention have been identified in many of the processes that are the source of damage to the brain after stroke, and numerous treatment strategies designed to exploit them have been developed. In this review, potential targets of neuroprotection in stroke are discussed, as well as the various treatments that have been targeted against them. In addition, a summary of recent progress in clinical trials of neuroprotective agents in stroke is provided.
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Affiliation(s)
- Arshad Majid
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385A Glossop Road, Sheffield S10 2HQ, UK
- Department of Neurology and Manchester Academic Health Sciences Centre, Salford Royal Hospital, Stott Lane, Salford M6 8HD, UK
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16
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Wang Z, Wei X, Liu K, Zhang X, Yang F, Zhang H, He Y, Zhu T, Li F, Shi W, Zhang Y, Xu H, Liu J, Yi F. NOX2 deficiency ameliorates cerebral injury through reduction of complexin II-mediated glutamate excitotoxicity in experimental stroke. Free Radic Biol Med 2013; 65:942-951. [PMID: 23982049 DOI: 10.1016/j.freeradbiomed.2013.08.166] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 08/12/2013] [Accepted: 08/15/2013] [Indexed: 10/26/2022]
Abstract
Although NADPH oxidase (NOX)-mediated oxidative stress is considered one of the major mechanisms triggering the pathogenic actions of ischemic stroke and very recent studies have indicated that NADPH oxidase is a major source of reactive oxygen species (ROS) production controlling glutamate release, how neuronal NADPH oxidase activation is coupled to glutamate release is not well understood. Therefore, in this study, we used an in vivo transient middle cerebral artery occlusion model and in vitro primary cell cultures to test whether complexins, the regulators of soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) complexes necessary for vesicle fusion, are associated with NOX2-derived ROS and contribute to glutamate-mediated excitotoxicity in ischemic stroke. In this study, we first identified the upregulation of complexin II in the ischemic brain and evaluated its potential role in ischemic stroke showing that gene silencing of complexin II ameliorated cerebral injury as evidenced by reduced infarction volume, neurological deficit, and neuron necrosis accompanied by decreased glutamate levels, consistent with the results from NOX2(-/-) mice with ischemic stroke. We further demonstrated that complexin II expression was mediated by NOX2 in primary cultured neurons subjected to oxygen-glucose deprivation (OGD) and contributed to OGD-induced glutamate release and neuron necrosis via SNARE signaling. Taken together, these findings for the first time provide evidence that complexin II is a central target molecule that links NADPH oxidase-derived ROS to glutamate-mediated neuronal excitotoxicity in ischemic stroke.
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Affiliation(s)
- Ziying Wang
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xinbing Wei
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Kang Liu
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xiumei Zhang
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Fan Yang
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Hongyu Zhang
- Department of Geriatrics, Qilu Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Yeteng He
- Department of Orthopedics, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, China
| | - Tianfeng Zhu
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Fengli Li
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Weichen Shi
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Yan Zhang
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Huiyan Xu
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Jiang Liu
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Fan Yi
- Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong 250012, China.
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17
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Bae ON, Majid A. Role of histidine/histamine in carnosine-induced neuroprotection during ischemic brain damage. Brain Res 2013; 1527:246-54. [PMID: 23850642 DOI: 10.1016/j.brainres.2013.07.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 07/03/2013] [Indexed: 01/06/2023]
Abstract
Urgent need exists for new therapeutic options in ischemic stroke. We recently demonstrated that carnosine, an endogenous dipeptide consisting of alanine and histidine, is robustly neuroprotective in ischemic brain injury and has a wide clinically relevant therapeutic time window. The precise mechanistic pathways that mediate this neuroprotective effect are not known. Following in vivo administration, carnosine is hydrolyzed into histidine, a precursor of histamine. It has been hypothesized that carnosine may exert its neuroprotective activities through the histidine/histamine pathway. Herein, we investigated whether the neuroprotective effect of carnosine is mediated by the histidine/histamine pathway using in vitro primary astrocytes and cortical neurons, and an in vivo rat model of ischemic stroke. In primary astrocytes, carnosine significantly reduced ischemic cell death after oxygen-glucose deprivation, and this effect was abolished by histamine receptor type I antagonist. However, histidine or histamine did not exhibit a protective effect on ischemic astrocytic cell death. In primary neuronal cultures, carnosine was found to be neuroprotective but histamine receptor antagonists had no effect on the extent of neuroprotection. The in vivo effect of histidine and carnosine was compared using a rat model of ischemic stroke; only carnosine exhibited neuroprotection. Taken together, our data demonstrate that although the protective effects of carnosine may be partially mediated by activity at the histamine type 1 receptor on astrocytes, the histidine/histamine pathway does not appear to play a critical role in carnosine induced neuroprotection.
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Affiliation(s)
- Ok-Nam Bae
- Division of Cerebrovascular Diseases and Department of Neurology and Ophthalmology, Michigan State University, East Lansing, MI, USA
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18
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Bae ON, Serfozo K, Baek SH, Lee KY, Dorrance A, Rumbeiha W, Fitzgerald SD, Farooq MU, Naravelta B, Bhatt A, Majid A. Safety and efficacy evaluation of carnosine, an endogenous neuroprotective agent for ischemic stroke. Stroke 2012; 44:205-12. [PMID: 23250994 DOI: 10.1161/strokeaha.112.673954] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND PURPOSE An urgent need exists to develop therapies for stroke that have high efficacy, long therapeutic time windows, and acceptable toxicity. We undertook preclinical investigations of a novel therapeutic approach involving supplementation with carnosine, an endogenous pleiotropic dipeptide. METHODS Efficacy and safety of carnosine treatment was evaluated in rat models of permanent or transient middle cerebral artery occlusion. Mechanistic studies used primary neuronal/astrocytic cultures and ex vivo brain homogenates. RESULTS Intravenous treatment with carnosine exhibited robust cerebroprotection in a dose-dependent manner, with long clinically relevant therapeutic time windows of 6 hours and 9 hours in transient and permanent models, respectively. Histological outcomes and functional improvements including motor and sensory deficits were sustained on 14th day poststroke onset. In safety and tolerability assessments, carnosine did not exhibit any evidence of adverse effects or toxicity. Moreover, histological evaluation of organs, complete blood count, coagulation tests, and the serum chemistry did not reveal any abnormalities. In primary neuronal cell cultures and ex vivo brain homogenates, carnosine exhibited robust antiexcitotoxic, antioxidant, and mitochondria protecting activity. CONCLUSIONS In both permanent and transient ischemic models, carnosine treatment exhibited significant cerebroprotection against histological and functional damage, with wide therapeutic and clinically relevant time windows. Carnosine was well tolerated and exhibited no toxicity. Mechanistic data show that it influences multiple deleterious processes. Taken together, our data suggest that this endogenous pleiotropic dipeptide is a strong candidate for further development as a stroke treatment.
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Affiliation(s)
- Ok-Nam Bae
- Department of Neurology, Salford Royal Hospital, Stott Lane, Salford, England
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