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Sun M, Li M, Cui X, Yan L, Pei Y, Wang C, Guan C, Zhang X. Terpenoids derived from Semen Ziziphi Spinosae oil enhance sleep by modulating neurotransmitter signaling in mice. Heliyon 2024; 10:e26979. [PMID: 38463787 PMCID: PMC10923681 DOI: 10.1016/j.heliyon.2024.e26979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/12/2024] Open
Abstract
Semen Ziziphi Spinosae oil (SZSO) is a natural vegetable oil extracted from Semen Ziziphi Spinosae, a traditional Chinese medicine renowned for its sleep-promoting properties, while the mechanisms are still unclear. Our findings revealed that the terpenoids present in SZSO (T-SZSO) were identified as the active components responsible for promoting sleep. Network pharmacological analysis suggested that T-SZSO targeted different sleep-aid pathways to varying degrees and exhibited potential for preventing central nervous system diseases. Notably, lupeol and betulinicaldehyde exhibited more pronounced effects. Additionally, T-SZSO significantly elevated serotonin levels, enhanced gamma-aminobutyric acid (GABA) synthesis, promoted GABA A receptor expression, and decreased glutamate and norepinephrine expression levels. Moreover, T-SZSO was found to downregulate IL-1β expression while upregulating superoxide dismutase and inducible nitric oxide synthase levels. In conclusion, this study presents the first investigation into the pharmacological basis of SZSO in promoting sleep and highlights the potential of nature food in improving suboptimal health conditions.
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Affiliation(s)
- Mingzhe Sun
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Health Foods R&D Office of Hebei Yiling Pharmaceutical Research Institute, Shijiazhuang 050035, China
| | - Mengnan Li
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang 050035, China
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang 050035, China
| | - Xinwen Cui
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Lin Yan
- Health Foods R&D Office of Hebei Yiling Pharmaceutical Research Institute, Shijiazhuang 050035, China
| | - Yiqiao Pei
- College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Chao Wang
- Health Foods R&D Office of Hebei Yiling Pharmaceutical Research Institute, Shijiazhuang 050035, China
| | - Chunbo Guan
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xiuqing Zhang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
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Han YH, Liu XD, Jin MH, Sun HN, Kwon T. Role of NLRP3 inflammasome-mediated neuronal pyroptosis and neuroinflammation in neurodegenerative diseases. Inflamm Res 2023; 72:1839-1859. [PMID: 37725102 DOI: 10.1007/s00011-023-01790-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND Neurodegenerative diseases are a common group of neurological disorders characterized by progressive loss of neuronal structure and function leading to cognitive impairment. Recent studies have shown that neuronal pyroptosis mediated by the NLRP3 inflammasome plays a crucial role in the pathogenesis of neurodegenerative diseases. OBJECTIVE AND METHOD The NLRP3 inflammasome is a multiprotein complex that, when activated within cells, triggers an inflammatory response, ultimately leading to pyroptotic cell death of neurons. Pyroptosis is a typical pro-inflammatory programmed cell death process occurring downstream of NLRP3 inflammasome activation, characterized by the formation of pores on the cell membrane by the GSDMD protein, leading to cell lysis and the release of inflammatory factors. It has been found that NLRP3 inflammasome-mediated neuronal pyroptosis is closely associated with the development of various neurodegenerative diseases, such as Alzheimer's disease, traumatic brain injury, and Parkinson's disease. Therefore, inhibiting NLRP3 inflammasome activation and attenuating neuronal pyroptosis could potentially serve as novel strategies for the treatment of neurodegenerative diseases. RESULTS The aim of this review is to explore the role of NLRP3 activation-mediated neuronal pyroptosis and neuroinflammation in neurodegenerative diseases. Firstly, we extensively discuss the relationship between NLRP3 inflammasome-mediated neuronal pyroptosis and neuroinflammation in various neurodegenerative diseases. Subsequently, we further explore the mechanisms driving NLRP3 activation and assembly, as well as the post-translational modifications regulating NLRP3 inflammasome activation. CONCLUSION Understanding these mechanisms will contribute to a deeper understanding of the link between neuronal pyroptosis and neurodegenerative diseases, and hold significant implications for the treatment and prevention of neurodegenerative diseases.
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Affiliation(s)
- Ying-Hao Han
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
| | - Xiao-Dong Liu
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Mei-Hua Jin
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Hu-Nan Sun
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
| | - Taeho Kwon
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup-si, Jeonbuk, 56216, Republic of Korea.
- Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology, Daejeon, 34113, Republic of Korea.
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3
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Chen Y, Liu Z, Gong Y. Neuron-immunity communication: mechanism of neuroprotective effects in EGCG. Crit Rev Food Sci Nutr 2023:1-20. [PMID: 37216484 DOI: 10.1080/10408398.2023.2212069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Epigallocatechin gallate (EGCG), a naturally occurring active ingredient unique to tea, has been shown to have neuroprotective potential. There is growing evidence of its potential advantages in the prevention and treatment of neuroinflammation, neurodegenerative diseases, and neurological damage. Neuroimmune communication is an important physiological mechanism in neurological diseases, including immune cell activation and response, cytokine delivery. EGCG shows great neuroprotective potential by modulating signals related to autoimmune response and improving communication between the nervous system and the immune system, effectively reducing the inflammatory state and neurological function. During neuroimmune communication, EGCG promotes the secretion of neurotrophic factors into the repair of damaged neurons, improves intestinal microenvironmental homeostasis, and ameliorates pathological phenotypes through molecular and cellular mechanisms related to the brain-gut axis. Here, we discuss the molecular and cellular mechanisms of inflammatory signaling exchange involving neuroimmune communication. We further emphasize that the neuroprotective role of EGCG is dependent on the modulatory role between immunity and neurology in neurologically related diseases.
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Affiliation(s)
- Ying Chen
- Key Laboratory of Tea Science of Ministry of Educatioxn, Changsha, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Changsha, China
| | - Zhonghua Liu
- Key Laboratory of Tea Science of Ministry of Educatioxn, Changsha, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Changsha, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, China
- Key Laboratory for Evaluation and Utilization of Gene Resources of Horticultural Crops, Ministry of Agriculture and Rural Affairs of China, Hunan Agricultural University, Changsha, China
| | - Yushun Gong
- Key Laboratory of Tea Science of Ministry of Educatioxn, Changsha, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Changsha, China
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4
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Mu J, Wu J, Cao J, Ma T, Li L, Feng S, Gao J. Rapid and effective treatment of traumatic spinal cord injury using stem cell derived exosomes. Asian J Pharm Sci 2021; 16:806-815. [PMID: 35027955 PMCID: PMC8739259 DOI: 10.1016/j.ajps.2021.10.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 10/21/2021] [Accepted: 10/21/2021] [Indexed: 02/08/2023] Open
Abstract
Traumatic spinal cord injury is a fatal acute event without effective clinical therapies. Following the trauma, immediate neural protection and microenvironment mitigation are vitally important for nerve tissue repair, where stem cell-based therapies could be eclipsed by the deficiency of cells due to the hostile microenvironment as well as the transport and preservation processes. Effective emergency strategies are required to be convenient, biocompatible, and stable. Herein, we assess an emergency cell-free treatment using mesenchymal stem cell-derived exosomes, which have proven capable of comprehensive mitigation of the inhibitory lesion microenvironment. The clinically validated fibrin glue is utilized to encapsulate the exosomes and in-situ gelates in transected rat spinal cords to provide a substrate for exosome delivery as well as nerve tissue growth. The emergency treatment alleviates the inflammatory and oxidative microenvironment, inducing effective nerve tissue repair and functional recovery. The therapy presents a promising strategy for effective emergency treatment of central nervous system trauma.
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5
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Zhao N, Meng J, Jiang W, Xu W, Liu C, Wang F. Study on the relationships between molecular weights of chondroitin sulfate oligosaccharides and Aβ-induced oxidative stress and the related mechanisms. Glycobiology 2020; 31:492-507. [PMID: 33043980 DOI: 10.1093/glycob/cwaa096] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/21/2020] [Accepted: 10/01/2020] [Indexed: 12/13/2022] Open
Abstract
In the present study, we studied anti-Alzheimer's disease (AD) activities of chondroitin sulfate (CS) oligosaccharides with different molecular weights. CS from shark cartilage was degraded by a recombinant CS endolyase, chondroitinase ABC I (CHSase ABC I), and CS disaccharide (DP2), tetrasaccharide (DP4), hexasaccharide (DP6), octasaccharide (DP8), decasaccharide (DP10) and dodecasaccharide (DP12) were obtained by separation with gel filtration. Anti-AD activities of CS oligosaccharides were assessed using Aβ-injured SH-SY5Y cells and BV2 cells. It was shown that CS oligosaccharides could block Aβ-induced oxidative stress, mitochondrial dysfunction and activation of intrinsic apoptotic pathway for SH-SY5Y cells. Furthermore, these activities increased with the increase of molecular weights. For Aβ-injured BV2 cells, CS oligosaccharides inhibited oxidative stress, the production of proinflammatory cytokines and the activation of toll-like receptor pathway, and CS DP2 had the best activity among them. In conclusion, CS oligosaccharides suppressed Aβ-induced oxidative stress and relevant injury in vitro, and these effects had different relationships with the molecular weights of CS oligosaccharides for different cell lines, which might be caused by different mechanisms.
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Affiliation(s)
- Na Zhao
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China
| | - Jie Meng
- School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China
| | - Wenjie Jiang
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China
| | - Wenjia Xu
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China
| | - Chunhui Liu
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China
| | - Fengshan Wang
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China.,Laboratory of Carbohydrate Chemistry and Glycobiology, National Glycoengineering Research Center, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China
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6
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Li L, Zhang Y, Mu J, Chen J, Zhang C, Cao H, Gao J. Transplantation of Human Mesenchymal Stem-Cell-Derived Exosomes Immobilized in an Adhesive Hydrogel for Effective Treatment of Spinal Cord Injury. NANO LETTERS 2020; 20:4298-4305. [PMID: 32379461 DOI: 10.1021/acs.nanolett.0c00929] [Citation(s) in RCA: 206] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Spinal cord injury is among the most fatal diseases. The complicated inhibitory microenvironment requires comprehensive mitigation. Exosomes derived from mesenchymal stem cells (MSCs) are natural biocarriers of cell paracrine secretions that bear the functions of microenvironment regulation. However, the effective retention, release, and integration of exosomes into the injured spinal cord tissue are poorly defined. Herein, an innovative implantation strategy is established using human MSC-derived exosomes immobilized in a peptide-modified adhesive hydrogel (Exo-pGel). Unlike systemic admistration of exosomes, topical transplantation of the Exo-pGel provides an exosome-encapsulated extracellular matrix to the injured nerve tissue, thereby inducing effecient comprehensive mitigation of the SCI microenvironment. The implanted exosomes exhibit efficient retention and sustained release in the host nerve tissues. The Exo-pGel elicits significant nerve recovery and urinary tissue preservation by effectively mitigating inflammation and oxidation. The Exo-pGel therapy presents a promising strategy for effective treatment of central nervous system diseases based on exosome implantation.
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Affiliation(s)
- Liming Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou 310058, China
| | - Yu Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiafu Mu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiachen Chen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chenyang Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hongcui Cao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jianqing Gao
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou 310058, China
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Blood total antioxidant status is associated with cortical glucose uptake and factors related to accelerated aging. Brain Struct Funct 2020; 225:841-851. [PMID: 32048020 DOI: 10.1007/s00429-020-02039-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 01/29/2020] [Indexed: 12/16/2022]
Abstract
Identifying cerebral vulnerability in late life is of paramount importance to prevent pathological trajectories of aging before the onset of symptoms. Considerable evidence suggests that impaired antioxidant mechanisms are a fingerprint of aging-related conditions, but there is a lack of human research linking total antioxidant capacity (TAC) measured in peripheral blood to in vivo brain changes and other factors featuring accelerated aging. To address this issue, we have assessed in cognitively normal elderly subjects (N = 100) correlations between serum TAC, using the oxygen radical absorbance capacity assay, surface-based cortical thickness, surface-based 18F-fluorodeoxyglucose positron emission tomography cortical uptake, and different factors associated with accelerated aging [i.e., serum homocysteine (HCY), self-reported memory problems, and self-reported patterns of physical activity]. While no relationship was observed between serum TAC and variations in cortical thickness, decreased TAC level was significantly associated with lower FDG uptake in temporal lobes bilaterally. Remarkably, decreased TAC level was linked to increased HCY concentrations, more subjective memory complaints, and lower frequency of physical activity. Overall, our results suggest that decreased serum TAC level may be helpful to detect vulnerable trajectories of aging.
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8
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Nam G, Lim MH. Intertwined Pathologies of Amyloid-β and Metal Ions in Alzheimer’s Disease: Metal–Amyloid-β. CHEM LETT 2019. [DOI: 10.1246/cl.190281] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Geewoo Nam
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
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9
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Clarke JR, Ribeiro FC, Frozza RL, De Felice FG, Lourenco MV. Metabolic Dysfunction in Alzheimer's Disease: From Basic Neurobiology to Clinical Approaches. J Alzheimers Dis 2019; 64:S405-S426. [PMID: 29562518 DOI: 10.3233/jad-179911] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Clinical trials have extensively failed to find effective treatments for Alzheimer's disease (AD) so far. Even after decades of AD research, there are still limited options for treating dementia. Mounting evidence has indicated that AD patients develop central and peripheral metabolic dysfunction, and the underpinnings of such events have recently begun to emerge. Basic and preclinical studies have unveiled key pathophysiological mechanisms that include aberrant brain stress signaling, inflammation, and impaired insulin sensitivity. These findings are in accordance with clinical and neuropathological data suggesting that AD patients undergo central and peripheral metabolic deregulation. Here, we review recent basic and clinical findings indicating that metabolic defects are central to AD pathophysiology. We further propose a view for future therapeutics that incorporates metabolic defects as a core feature of AD pathogenesis. This approach could improve disease understanding and therapy development through drug repurposing and/or identification of novel metabolic targets.
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Affiliation(s)
- Julia R Clarke
- School of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Felipe C Ribeiro
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rudimar L Frozza
- Oswaldo Cruz Institute, Oswaldo Cruz Foundation, FIOCRUZ, Rio de Janeiro, Brazil
| | - Fernanda G De Felice
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Centre for Neuroscience Studies, Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Mychael V Lourenco
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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10
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Ranjit S, Patters BJ, Gerth KA, Haque S, Choudhary S, Kumar S. Potential neuroprotective role of astroglial exosomes against smoking-induced oxidative stress and HIV-1 replication in the central nervous system. Expert Opin Ther Targets 2018; 22:703-714. [PMID: 30015535 DOI: 10.1080/14728222.2018.1501473] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION HIV-1-infected smokers are at risk of oxidative damage to neuronal cells in the central nervous system by both HIV-1 and cigarette smoke. Since neurons have a weak antioxidant defense system, they mostly depend on glial cells, particularly astrocytes, for protection against oxidative damage and neurotoxicity. Astrocytes augment the neuronal antioxidant system by supplying cysteine-containing products for glutathione synthesis, antioxidant enzymes such as SOD and catalase, glucose for antioxidant regeneration via the pentose-phosphate pathway, and by recycling of ascorbic acid. Areas covered: The transport of antioxidants and energy substrates from astrocytes to neurons could possibly occur via extracellular nanovesicles called exosomes. This review highlights the neuroprotective potential of exosomes derived from astrocytes against smoking-induced oxidative stress, HIV-1 replication, and subsequent neurotoxicity observed in HIV-1-positive smokers. Expert opinion: During stress conditions, the antioxidants released from astrocytes either via extracellular fluid or exosomes to neurons may not be sufficient to provide neuroprotection. Therefore, we put forward a novel strategy to combat oxidative stress in the central nervous system, using synthetically developed exosomes loaded with antioxidants such as glutathione and the anti-aging protein Klotho.
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Affiliation(s)
- Sabina Ranjit
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Benjamin J Patters
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Kelli A Gerth
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Sanjana Haque
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Sanjeev Choudhary
- b Department of Internal Medicine , University of Texas Medical Branch , Galveston , TX , United States
| | - Santosh Kumar
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
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Irrera N, Pizzino G, Calò M, Pallio G, Mannino F, Famà F, Arcoraci V, Fodale V, David A, Francesca C, Minutoli L, Mazzon E, Bramanti P, Squadrito F, Altavilla D, Bitto A. Lack of the Nlrp3 Inflammasome Improves Mice Recovery Following Traumatic Brain Injury. Front Pharmacol 2017; 8:459. [PMID: 28769794 PMCID: PMC5509758 DOI: 10.3389/fphar.2017.00459] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/27/2017] [Indexed: 11/13/2022] Open
Abstract
Treatment for traumatic brain injury (TBI) remains elusive despite compelling evidence from animal models for a variety of therapeutic targets. The activation of the NLRP3 (Nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3) inflammasome has been proposed as key point in the brain damage associated with TBI. NLRP3 was tested as potential target for reducing neuronal loss and promoting functional recovery in a mouse model of TBI. Male NLRP3-/- (n = 20) and wild type (n = 27) mice were used. A closed TBI model was performed and inflammatory and apoptotic markers were evaluated. A group of WT mice also received BAY 11-7082, a NLRP3 inhibitor, to further evaluate the role of this pathway. At 24 h following TBI NLRP3-/- animals demonstrated a preserved cognitive function as compared to WT mice, additionally brain damage was less severe and the inflammatory mediators were reduced in brain lysates. The administration of BAY 11-7082 in WT animals subjected to TBI produced overlapping results. At day 7 histology revealed a more conserved brain structure with reduced damage in TBI NLRP3-/- animals compared to WT. Our data indicate that the NLRP3 pathway might be exploited as molecular target for the short-term sequelae of TBI.
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Affiliation(s)
- Natasha Irrera
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Gabriele Pizzino
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Margherita Calò
- Department of Veterinary Sciences, University of MessinaMessina, Italy
| | - Giovanni Pallio
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Federica Mannino
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Fausto Famà
- Department of Human Pathology, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Vincenzo Arcoraci
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Vincenzo Fodale
- Department of Human Pathology, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Antonio David
- Department of Human Pathology, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Cosentino Francesca
- Department of Human Pathology, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Letteria Minutoli
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | | | | | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Domenica Altavilla
- Department of Biomedical and Dental Sciences and Morphological and Functional Sciences, AOU Policlinico G. Martino, University of MessinaMessina, Italy
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, AOU Policlinico G. Martino, University of MessinaMessina, Italy
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12
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Barrouin-Melo SM, Anturaniemi J, Sankari S, Griinari M, Atroshi F, Ounjaijean S, Hielm-Björkman AK. Evaluating oxidative stress, serological- and haematological status of dogs suffering from osteoarthritis, after supplementing their diet with fish or corn oil. Lipids Health Dis 2016; 15:139. [PMID: 27566551 PMCID: PMC5002171 DOI: 10.1186/s12944-016-0304-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 08/10/2016] [Indexed: 02/07/2023] Open
Abstract
Background Oxidative stress plays an important role in the pathogenesis of disease, and the antioxidant physiological effect of omega-3 from fish oil may lead to improvement of canine spontaneous osteoarthritis (OA). Methods In this prospective randomized, controlled, double-blinded study, we assessed haematological and biochemical parameters in dogs with OA following supplementation with either a concentrated omega-3 deep sea fish oil product or corn oil. Blood samples from 77 client-owned dogs diagnosed as having OA were taken before (baseline) and 16 weeks after having orally ingested 0.2 ml/Kg bodyweight/day of deep sea fish oil or corn oil. Circulating malondialdehyde (MDA), glutathione (GSH), non-transferrin bound iron (NTBI), free carnitine (Free-Car), 8-hydroxy-2-deoxyguanosine (8-OH-dG), and serum fatty acids, haemograms and serum biochemistry were evaluated. Differences within and between groups from baseline to end, were analysed using repeated samples T-test or Wilcoxon rank test and independent samples T-test or a Mann-Whitney test. Results Supplementation with fish oil resulted in a significant reduction from day 0 to day 112 in MDA (from 3.41 ± 1.34 to 2.43 ± 0.92 μmol/L; P < 0.001) and an elevation in Free-Car (from 18.18 ± 9.78 to 21.19 ± 9.58 μmol/L; P = 0.004) concentrations, whereas dogs receiving corn oil presented a reduction in MDA (from 3.41 ± 1.34 to 2.41 ± 1.01 μmol/L; P = 0.001) and NTBI (from −1.25 ± 2.17 to −2.31 ± 1.64 μmol/L; P = 0.002). Both groups showed increased (albeit not significantly) GSH and 8-OH-dG blood values. Dogs supplemented with fish oil had a significant reduction in the proportions of monocytes (from 3.84 ± 2.50 to 1.77 ± 1.92 %; P = 0.030) and basophils (from 1.47 ± 1.22 to 0.62 ± 0.62 %; P = 0.012), whereas a significant reduction in platelets counts (from 316.13 ± 93.83 to 288.41 ± 101.68 × 109/L; P = 0.029), and an elevation in glucose (from 5.18 ± 0.37 to 5.32 ± 0.47 mmol/L; P = 0.041) and cholesterol (from 7.13 ± 1.62 to 7.73 ± 2.03 mmol/L; P = 0.011) measurements were observed in dogs receiving corn oil. Conclusions In canine OA, supplementation with deep sea fish oil improved diverse markers of oxidative status in the dogs studied. As corn oil also contributed to the reduction in certain oxidative markers, albeit to a lesser degree, there was no clear difference between the two oil groups. No clinical, haematological or biochemical evidence of side effects emerged related to supplementation of either oil. Although a shift in blood fatty acid values was apparent due to the type of nutraceutical product given to the dogs, corn oil seems not to be a good placebo.
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Affiliation(s)
- Stella Maria Barrouin-Melo
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014, Helsinki, Finland.,Department of Anatomy, Pathology and Clinics, School of Veterinary Medicine and Zootechny, Federal University of Bahia, Av. Adhemar de Barros, 500, CEP: 40170-110, Salvador, Bahia, Brazil
| | - Johanna Anturaniemi
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014, Helsinki, Finland
| | - Satu Sankari
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014, Helsinki, Finland
| | | | - Faik Atroshi
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014, Helsinki, Finland.,Rinnekoti Research Centre, Nousumäki 2, 02980, Espoo, Finland
| | | | - Anna Katrina Hielm-Björkman
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014, Helsinki, Finland.
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Lourenco MV, Ferreira ST, De Felice FG. Neuronal stress signaling and eIF2α phosphorylation as molecular links between Alzheimer's disease and diabetes. Prog Neurobiol 2015; 129:37-57. [PMID: 25857551 DOI: 10.1016/j.pneurobio.2015.03.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/10/2015] [Accepted: 03/29/2015] [Indexed: 12/22/2022]
Abstract
Mounting evidence from clinical, epidemiological, neuropathology and preclinical studies indicates that mechanisms similar to those leading to peripheral metabolic deregulation in metabolic disorders, such as diabetes and obesity, take place in the brains of Alzheimer's disease (AD) patients. These include pro-inflammatory mechanisms, brain metabolic stress and neuronal insulin resistance. From a molecular and cellular perspective, recent progress has been made in unveiling novel pathways that act in an orchestrated way to cause neuronal damage and cognitive decline in AD. These pathways converge to the activation of neuronal stress-related protein kinases and excessive phosphorylation of eukaryotic translation initiation factor 2α (eIF2α-P), which plays a key role in control of protein translation, culminating in synapse dysfunction and memory loss. eIF2α-P signaling thus links multiple neuronal stress pathways to impaired neuronal function and neurodegeneration. Here, we present a critical analysis of recently discovered molecular mechanisms underlying impaired brain insulin signaling and metabolic stress, with emphasis on the role of stress kinase/eIF2α-P signaling as a hub that promotes brain and behavioral impairments in AD. Because very similar mechanisms appear to operate in peripheral metabolic deregulation in T2D and in brain defects in AD, we discuss the concept that targeting defective brain insulin signaling and neuronal stress mechanisms with anti-diabetes agents may be an attractive approach to fight memory decline in AD. We conclude by raising core questions that remain to be addressed toward the development of much needed therapeutic approaches for AD.
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Affiliation(s)
- Mychael V Lourenco
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil.
| | - Sergio T Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Fernanda G De Felice
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil.
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Hassler SN, Johnson KM, Hulsebosch CE. Reactive oxygen species and lipid peroxidation inhibitors reduce mechanical sensitivity in a chronic neuropathic pain model of spinal cord injury in rats. J Neurochem 2014; 131:413-7. [PMID: 25051888 DOI: 10.1111/jnc.12830] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 06/25/2014] [Accepted: 07/18/2014] [Indexed: 01/20/2023]
Abstract
Chronic neuropathic pain is a common consequence of spinal cord injury (SCI), develops over time and negatively impacts quality of life, often leading to substance abuse and suicide. Recent evidence has demonstrated that reactive oxygen species (ROS) play a role in contributing to neuropathic pain in SCI animal models. This investigation examines four compounds that reduce ROS and the downstream lipid peroxidation products, apocynin, 4-oxo-tempo, U-83836E, and tirilazad, and tests if these compounds can reduce nocioceptive behaviors in chronic SCI animals. Apocynin and 4-oxo-tempo significantly reduced abnormal mechanical hypersensitivity measured in forelimbs and hindlimbs in a model of chronic SCI-induced neuropathic pain. Thus, compounds that inhibit ROS or lipid peroxidation products can be used to ameliorate chronic neuropathic pain. We propose that the application of compounds that inhibit reactive oxygen species (ROS) and related downstream molecules will also reduce the behavioral measures of chronic neuropathic pain. Injury or trauma to nervous tissue leads to increased concentrations of ROS in the surviving tissue. Further damage from ROS molecules to dorsal lamina neurons leads to membrane excitability, the physiological correlate of chronic pain. Chronic pain is difficult to treat with current analgesics and this research will provide a novel therapy for this disease.
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Affiliation(s)
- Shayne N Hassler
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, Texas, USA
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