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Zhang L, Li Y, Hu W, Gao S, Tang Y, Sun L, Jiang N, Xiao Z, Han L, Zhou W. Computational identification of mitochondrial dysfunction biomarkers in severe SARS-CoV-2 infection: Facilitating therapeutic applications of phytomedicine. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 131:155784. [PMID: 38878325 DOI: 10.1016/j.phymed.2024.155784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/18/2024] [Accepted: 04/13/2024] [Indexed: 06/25/2024]
Abstract
BACKGROUND Currently, SARS-CoV-2 has not disappeared and continues to prevail worldwide, with the ongoing risk of mutations and the potential for severe COVID-19. The impairment of monocyte mitochondrial function caused by SARS-CoV-2, leading to a metabolic and immune dysregulation, is a crucial factor in the development of severe COVID-19. PURPOSE Discover effective phytomedicines based on mitochondrial-related biomarkers in severe SARS-CoV-2 infection. METHODS Firstly, differential gene analysis and gene set enrichment analysis (GSEA) were conducted on monocytes datasets to identify genes and pathways distinguishing severe patients from uninfected individuals. Then, GO and KEGG enrichment analysis on the differentially expressed genes (DEGs) obtained. Take the DEGs and intersect them with the MitoCarta 3.0 gene set to obtain the differentially expressed mitochondrial-related genes (DE-MRGs). Subsequently, machine learning algorithms were employed to screen potential mitochondrial dysfunction biomarkers for severe COVID-19 based on score values. ROC curves were then plotted to assess the distinguish capability of the biomarkers, followed by validation using two additional independent datasets. Next, the effects of the identified biomarkers on metabolic pathways and immune cells were explored through Gene Set Variation Analysis (GSVA) and CIBERSORT. Finally, potential nature products for severe COVID-19 were screened from the expression profile dataset based on dysregulated mitochondrial-related genes, followed by in vitro experimental validation. RESULTS There are 1812 DEGs and 17 dysregulated mitochondrial processes between severe COVID-19 patients and uninfected individuals. A total of 77 DE-MRGs were identified, and the potential biomarkers were identified as RECQL4, PYCR1, PIF1, POLQ, and GLDC. In both the training and validation sets, the area under the ROC curve (AUC) for these five biomarkers was greater than 0.9. And they did not show significant changes in mild to moderate patients (p > 0.05), indicating their ability to effectively distinguish severe COVID-19. These biomarkers exhibit a highly significant correlation with the dysregulated metabolic processes (p < 0.05) and immune cell imbalance (p < 0.05) in severe patients, as demonstrated by GSVA and CIBERSORT algorithms. Curcumin has the highest score in the predictive model based on transcriptomic data from 496 natural compounds (p = 0.02; ES = 0.90). Pre-treatment with curcumin for 8 h has been shown to alleviate mitochondrial membrane potential damage caused by the SARS-CoV-2 S1 protein (p < 0.05) and reduce elevated levels of reactive oxygen species (ROS) (p < 0.01). CONCLUSION The results of this study indicate a significant correlation between severe SARS-CoV-2 infection and mitochondrial dysfunction. The proposed mitochondrial dysfunction biomarkers identified in this study are associated with the disease progression, metabolic and immune changes in severe SARS-CoV-2 infected patients. Curcumin has a potential role in preventing severe COVID-19 by protecting mitochondrial function. Our findings provide new strategies for predicting the prognosis and enabling early intervention in SARS-CoV-2 infection.
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Affiliation(s)
- Lihui Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Yuehan Li
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Wanting Hu
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Shengqiao Gao
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Yiran Tang
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Lei Sun
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Ning Jiang
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Zhiyong Xiao
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Lu Han
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China.
| | - Wenxia Zhou
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China.
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2
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Yazdani Y, Zamani ARN, Majidi Z, Sharafkandi N, Alizadeh S, Mofrad AME, Valizadeh A, Idari G, Radvar AD, Safaie N, Faridvand Y. Curcumin and targeting of molecular and metabolic pathways in multiple sclerosis. Cell Biochem Funct 2023; 41:779-787. [PMID: 37653672 DOI: 10.1002/cbf.3841] [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: 05/09/2023] [Revised: 08/01/2023] [Accepted: 08/15/2023] [Indexed: 09/02/2023]
Abstract
Multiple sclerosis (MS) is a life-threading disease that poses a great threat to the human being lifestyle. Having said extensive research in the realm of underlying mechanisms and treatment procedures, no definite remedy has been found. Over the past decades, many medicines have been disclosed to alleviate the symptoms and marking of MS. Meanwhile, the substantial efficacy of herbal medicines including curcumin must be underscored. Accumulated documents demonstrated the fundamental role of curcumin in the induction of the various signaling pathways. According to evidence, curcumin can play a role in mitochondrial dysfunction and apoptosis, autophagy, and mitophagy. Also, by targeting the signaling pathways AMPK, PGC-1α/PPARγ, and PI3K/Akt/mTOR, curcumin interferes with the metabolism of MS. The anti-inflammatory, antioxidant, and immune regulatory effects of this herbal compound are involved in its effectiveness against MS. Thus, the present review indicates the molecular and metabolic pathways associated with curcumin's various pharmacological actions on MS, as well as setting into context the many investigations that have noted curcumin-mediated regulatory effects in MS.
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Affiliation(s)
- Yalda Yazdani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Arezoo R N Zamani
- Department of Genetic, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Ziba Majidi
- Department of Medical Laboratory Science, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Nadia Sharafkandi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Shaban Alizadeh
- Department of Hematology, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir M E Mofrad
- Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Amir Valizadeh
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Gholamreza Idari
- Department of Clinical Biochemistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Aysan D Radvar
- Faculty of Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasser Safaie
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yousef Faridvand
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
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3
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Bhaskaran S, Kumar G, Thadathil N, Piekarz KM, Mohammed S, Lopez SD, Qaisar R, Walton D, Brown JL, Murphy A, Smith N, Saunders D, Beckstead MJ, Plafker S, Lewis TL, Towner R, Deepa SS, Richardson A, Axtell RC, Van Remmen H. Neuronal deletion of MnSOD in mice leads to demyelination, inflammation and progressive paralysis that mimics phenotypes associated with progressive multiple sclerosis. Redox Biol 2023; 59:102550. [PMID: 36470129 PMCID: PMC9720104 DOI: 10.1016/j.redox.2022.102550] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022] Open
Abstract
Neuronal oxidative stress has been implicated in aging and neurodegenerative disease. Here we investigated the impact of elevated oxidative stress induced in mouse spinal cord by deletion of Mn-Superoxide dismutase (MnSOD) using a neuron specific Cre recombinase in Sod2 floxed mice (i-mn-Sod2 KO). Sod2 deletion in spinal cord neurons was associated with mitochondrial alterations and peroxide generation. Phenotypically, i-mn-Sod2 KO mice experienced hindlimb paralysis and clasping behavior associated with extensive demyelination and reduced nerve conduction velocity, axonal degeneration, enhanced blood brain barrier permeability, elevated inflammatory cytokines, microglia activation, infiltration of neutrophils and necroptosis in spinal cord. In contrast, spinal cord motor neuron number, innervation of neuromuscular junctions, muscle mass, and contractile function were not altered. Overall, our findings show that loss of MnSOD in spinal cord promotes a phenotype of demyelination, inflammation and progressive paralysis that mimics phenotypes associated with progressive multiple sclerosis.
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Affiliation(s)
- Shylesh Bhaskaran
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA
| | - Gaurav Kumar
- Arthritis & Clinical Immunology, Oklahoma Medical Research Foundation, OK, USA
| | - Nidheesh Thadathil
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, OK, USA
| | - Katarzyna M Piekarz
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA
| | - Sabira Mohammed
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | | | - Rizwan Qaisar
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA
| | - Dorothy Walton
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA
| | - Jacob L Brown
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA; Oklahoma City VA Medical Center, Oklahoma City, OK, USA
| | - Ashley Murphy
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA
| | - Nataliya Smith
- Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation, OK, USA
| | - Debra Saunders
- Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation, OK, USA
| | - Michael J Beckstead
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA; Oklahoma City VA Medical Center, Oklahoma City, OK, USA
| | - Scott Plafker
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA
| | - Tommy L Lewis
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA
| | - Rheal Towner
- Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation, OK, USA
| | - Sathyaseelan S Deepa
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, OK, USA; Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Arlan Richardson
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, OK, USA; Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Oklahoma City VA Medical Center, Oklahoma City, OK, USA
| | - Robert C Axtell
- Arthritis & Clinical Immunology, Oklahoma Medical Research Foundation, OK, USA.
| | - Holly Van Remmen
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, OK, USA; Oklahoma City VA Medical Center, Oklahoma City, OK, USA.
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Costantini E, Masciarelli E, Casorri L, Di Luigi M, Reale M. Medicinal herbs and multiple sclerosis: Overview on the hard balance between new therapeutic strategy and occupational health risk. Front Cell Neurosci 2022; 16:985943. [PMID: 36439198 PMCID: PMC9688751 DOI: 10.3389/fncel.2022.985943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/20/2022] [Indexed: 11/11/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease characterized by demyelination and axonal loss of the central nervous system (CNS). Despite its spread throughout the world, the mechanisms that determine its onset are still to be defined. Immunological, genetic, viral, and environmental factors and exposure to chemicals may trigger MS. Many studies have highlighted the anti-inflammatory and anti-oxidant effects of medicinal herbs, which make them a natural and complementary treatment for neurodegenerative diseases. A severe reduction of several MS symptoms occurs with herbal therapy. Thus, the request for medicinal plants with potential beneficial effects, for MS patients, is constantly increasing. Consequently, a production increase needs. Unfortunately, many medicinal herbs were untested and their action mechanism, possible adverse effects, contraindications, or interactions with other drugs, are poorly or not investigated. Keeping in mind the pathological mechanisms of MS and the oxidative damages and mitochondrial dysfunctions induced by pesticides, it is important to understand if pesticides used to increase agricultural productivity and their residues in medicinal plants, may increase the risk of developing MS in both workers and consumers. Studies providing some indication about the relationship between environmental exposure to pesticides and MS disease incidence are few, fragmentary, and discordant. The aim of this article is to provide a glance at the therapeutic potential of medicinal plants and at the risk for MS onset of pesticides used by medicinal plant growers and present in medicinal herbs.
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Affiliation(s)
- Erica Costantini
- Department of Medicine and Science of Aging, G. d’Annunzio University of Chieti–Pescara, Chieti, Italy
| | - Eva Masciarelli
- Department of Technological Innovations and Safety of Plants, Products and Anthropic Settlements, National Institute for Insurance Against Accidents at Work, Rome, Italy
| | - Laura Casorri
- Department of Technological Innovations and Safety of Plants, Products and Anthropic Settlements, National Institute for Insurance Against Accidents at Work, Rome, Italy
| | - Marco Di Luigi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL Research Center, National Institute for Insurance Against Accidents at Work, Rome, Italy
| | - Marcella Reale
- Department of Innovative Technologies in Medicine and Dentistry, G. d’Annunzio University of Chieti–Pescara, Chieti, Italy
- *Correspondence: Marcella Reale,
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5
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The Possible Role of Neural Cell Apoptosis in Multiple Sclerosis. Int J Mol Sci 2022; 23:ijms23147584. [PMID: 35886931 PMCID: PMC9316123 DOI: 10.3390/ijms23147584] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/17/2022] Open
Abstract
The etiology of multiple sclerosis (MS), a demyelinating disease affecting the central nervous system (CNS), remains obscure. Although apoptosis of oligodendrocytes and neurons has been observed in MS lesions, the contribution of this cell death process to disease pathogenesis remains controversial. It is usually considered that MS-associated demyelination and axonal degeneration result from neuroinflammation and an autoimmune process targeting myelin proteins. However, experimental data indicate that oligodendrocyte and/or neuronal cell death may indeed precede the development of inflammation and autoimmunity. These findings raise the question as to whether neural cell apoptosis is the key event initiating and/or driving the pathological cascade, leading to clinical functional deficits in MS. Similarly, regarding axonal damage, a key pathological feature of MS lesions, the roles of inflammation-independent and cell autonomous neuronal processes need to be further explored. While oligodendrocyte and neuronal loss in MS may not necessarily be mutually exclusive, particular attention should be given to the role of neuronal apoptosis in the development of axonal loss. If proven, MS could be viewed primarily as a neurodegenerative disease accompanied by a secondary neuroinflammatory and autoimmune process.
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6
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Tecellioğlu M, Türkmen NB, Ciftçi O, Taşlıdere A, Ekmekyapar T, Yüce H, Öztanır MN, Özcan C. The Beneficial Effects of Resveratrol on Experimental Autoimmune Encephalomyelitis (EAE) in C57BL/6J Mouse Model. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022040093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Lv B, Shen N, Cheng Z, Chen Y, Ding H, Yuan J, Zhao K, Zhang Y. Strategies for Biomaterial-Based Spinal Cord Injury Repair via the TLR4-NF-κB Signaling Pathway. Front Bioeng Biotechnol 2022; 9:813169. [PMID: 35600111 PMCID: PMC9116428 DOI: 10.3389/fbioe.2021.813169] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/13/2021] [Indexed: 12/23/2022] Open
Abstract
The repair and motor functional recovery after spinal cord injury (SCI) has remained a clinical challenge. Injury-induced gliosis and inflammation lead to a physical barrier and an extremely inhibitory microenvironment, which in turn hinders the recovery of SCI. TLR4-NF-κB is a classic implant-related innate immunomodulation signaling pathway and part of numerous biomaterial-based treatment strategies for SCI. Numerous experimental studies have demonstrated that the regulation of TLR4-NF-κB signaling pathway plays an important role in the alleviation of inflammatory responses, the modulation of autophagy, apoptosis and ferroptosis, and the enhancement of anti-oxidative effect post-SCI. An increasing number of novel biomaterials have been fabricated as scaffolds and carriers, loaded with phytochemicals and drugs, to inhibit the progression of SCI through regulation of TLR4-NF-κB. This review summarizes the empirical strategies for the recovery after SCI through individual or composite biomaterials that mediate the TLR4-NF-κB signaling pathway.
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Affiliation(s)
- Bin Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Naiting Shen
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhangrong Cheng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Ding
- Department of Orthopedics, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Jishan Yuan
- Department of Orthopedics, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Kangchen Zhao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yukun Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Tang S, Su B, Tao T, Yan W, Zhang R, Qin X, Feng J. RGMa regulates CCL5 expression via the BMP receptor in experimental autoimmune encephalomyelitis mice and endothelial cells. Mol Med Rep 2022; 25:85. [PMID: 35029290 PMCID: PMC8809120 DOI: 10.3892/mmr.2022.12601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 12/17/2021] [Indexed: 12/04/2022] Open
Abstract
Multiple sclerosis (MS) is a demyelinating disease of the central nervous system (CNS). Repulsive guidance molecule a (RGMa) has been indicated to act as a bone morphogenetic protein (BMP) co-receptor, enhancing BMP signalling activity. However, the role and downstream pathways of the BMP signalling pathway mediated by RGMa have yet to be fully elucidated. A recent study revealed that C-C motif chemokine ligand 5 (CCL5) has a major role in the pathogenesis of MS via the recruitment of macrophages and T-lymphocytes into the CNS. The present study aimed to evaluate whether RGMa regulates CCL5 via the BMP pathway in MS. The results demonstrated that RGMa regulated CCL5 expression in a BMP ligand-dependent manner in experimental autoimmune encephalomyelitis (EAE) mice in vivo and in endothelial cells in vitro. First, specific inhibition of the expression of RGMa via RNA interference led to a significant reduction of the expression of RGMa and this was associated with a significant delay of EAE, an alleviated disease course and downregulation of CCL5 expression at both the protein and mRNA levels. Furthermore, exogenous noggin, an extracellular antagonist of BMP ligand, abolished the induction effect of RGMa on CCL5 in endothelial cells. Taken together, these results suggested that RGMa is an important regulator of MS and inflammatory mediators such as CCL5, and the present results should prove to be useful in terms of further elucidating the RGMa-BMP receptor signalling pathway and the pathogenesis of RGMa on MS as far as the involvement of blood-brain barrier permeability is concerned.
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Affiliation(s)
- Shi Tang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Bao Su
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Tao Tao
- Department of Neurology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Weiping Yan
- Department of Neurology, Guangrao District People's Hospital, Dongying, Shandong 257300, P.R. China
| | - Rongrong Zhang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xinyue Qin
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Jinzhou Feng
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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Göttle P, Schichel K, Reiche L, Werner L, Zink A, Prigione A, Küry P. TLR4 Associated Signaling Disrupters as a New Means to Overcome HERV-W Envelope-Mediated Myelination Deficits. Front Cell Neurosci 2021; 15:777542. [PMID: 34887730 PMCID: PMC8650005 DOI: 10.3389/fncel.2021.777542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/25/2021] [Indexed: 01/04/2023] Open
Abstract
Myelin repair in the adult central nervous system (CNS) is driven by successful differentiation of resident oligodendroglial precursor cells (OPCs) and thus constitutes a neurodegenerative process capable to compensate for functional deficits upon loss of oligodendrocytes and myelin sheaths as it is observed in multiple sclerosis (MS). The human endogenous retrovirus type W (HERV-W) represents an MS-specific pathogenic entity, and its envelope (ENV) protein was previously identified as a negative regulator of OPC maturation—hence, it is of relevance in the context of diminished myelin repair. We here focused on the activity of the ENV protein and investigated how it can be neutralized for improved remyelination. ENV-mediated activation of toll like receptor 4 (TLR4) increases inducible nitric oxide synthase (iNOS) expression, prompts nitrosative stress, and results in myelin-associated deficits, such as decreased levels of oligodendroglial maturation marker expression and morphological alterations. The intervention of TLR4 surface expression represents a potential means to rescue such ENV-dependent deficits. To this end, the rescue capacity of specific substances, either modulating V-ATPase activity or myeloid differentiation 2 (MD2)-mediated TLR4 glycosylation status, such as compound 20 (C20), L48H437, or folimycin, was analyzed, as these processes were demonstrated to be relevant for TLR4 surface expression. We found that pharmacological treatment can rescue the maturation arrest of oligodendroglial cells and their myelination capacity and can prevent iNOS induction in the presence of the ENV protein. In addition, downregulation of TLR4 surface expression was observed. Furthermore, mitochondrial integrity crucial for oligodendroglial cell differentiation was affected in the presence of ENV and ameliorated upon pharmacological treatment. Our study, therefore, provides novel insights into possible means to overcome myelination deficits associated with HERV-W ENV-mediated myelin deficits.
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Affiliation(s)
- Peter Göttle
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Kira Schichel
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Laura Reiche
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Luisa Werner
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Annika Zink
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Alessandro Prigione
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Patrick Küry
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
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10
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Mohseni M, Sahebkar A, Askari G, Johnston TP, Alikiaii B, Bagherniya M. The clinical use of curcumin on neurological disorders: An updated systematic review of clinical trials. Phytother Res 2021; 35:6862-6882. [PMID: 34528307 DOI: 10.1002/ptr.7273] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 08/05/2021] [Accepted: 08/25/2021] [Indexed: 12/19/2022]
Abstract
Neuroprotective effects of curcumin have been shown in previous studies. This updated systematic review of clinical trials aimed to investigate the effect of curcumin on neurological disorders. Databases including PubMed, Scopus, Web of Science, and Google Scholar were systematically searched to identify clinical trials investigating the effects of curcumin/turmeric supplements alone, or in combination with other ingredients, on neurological diseases. Nineteen studies comprising 1,130 patients met the inclusion criteria. Generally, intervention and study outcomes were heterogeneous. In most of the studies, curcumin had a favorable effect on oxidative stress and inflammation. However, with the exception of AD, curcumin supplementation either alone, or in combination with other ingredients, had beneficial effects on clinical outcomes for the other aforementioned neurodegenerative diseases. For example, the frequency, severity, and duration of migraine attacks, scores on the revised ALS functional rating scale, and the occurrence of motor complications in PD were all significantly improved with curcumin supplementation either alone or in combination with other ingredients. However, in three studies, several adverse side effects (mostly gastrointestinal in nature) were reported. Curcumin supplementation may have favorable effects on inflammatory status and clinical outcomes of patients with neurological disease, although the results were not consistent.
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Affiliation(s)
- Maryam Mohseni
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Medicine, The University of Western Australia, Perth, Australia.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Askari
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.,Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Babak Alikiaii
- Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Bagherniya
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.,Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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11
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Mavaddatiyan L, Khezri S, Abtahi Froushani SM. Molecular effects of curcumin on the experimental autoimmune encephalomyelitis. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2021; 12:47-52. [PMID: 33953873 PMCID: PMC8094149 DOI: 10.30466/vrf.2019.98789.2356] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 02/02/2019] [Indexed: 11/01/2022]
Abstract
Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS). Previous studies have shown that myelin degradation during MS and EAE resulted in reduced expression of some of the proteins, e.g., the MBP (myelin basic protein), and increased expression of genes such as iNOS (Inducible nitric oxide synthase) and NOGO-A in the affected patients. In the present study, EAE was induced by immunizing Wistar rats (n=12) with homogenized spinal cord of guinea pig and Freund's complete adjuvant. Curcumin is an active ingredient in turmeric with anti-inflammatory properties, which has been studied in this article. In this study, the effect of curcumin administration on the change of the expression of MBP, NOGO-A, and iNOS genes was evaluated using the RT-PCR (Reverse transcription-polymerase chain reaction) technique. The obtained results indicated it could be concluded that curcumin was able to improve EAE by increasing the amount of MBP gene expression and reducing the intensity of NOGO-A expression.
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Affiliation(s)
- Laleh Mavaddatiyan
- Department of Biology, Faculty of Sciences, Urmia University, Urmia, Iran
| | - Shiva Khezri
- Department of Biology, Faculty of Sciences, Urmia University, Urmia, Iran
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12
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Bernardo A, Plumitallo C, De Nuccio C, Visentin S, Minghetti L. Curcumin promotes oligodendrocyte differentiation and their protection against TNF-α through the activation of the nuclear receptor PPAR-γ. Sci Rep 2021; 11:4952. [PMID: 33654147 PMCID: PMC7925682 DOI: 10.1038/s41598-021-83938-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 01/01/2021] [Indexed: 12/21/2022] Open
Abstract
Curcumin is a compound found in the rhizome of Curcuma longa (turmeric) with a large repertoire of pharmacological properties, including anti-inflammatory and neuroprotective activities. The current study aims to assess the effects of this natural compound on oligodendrocyte progenitor (OP) differentiation, particularly in inflammatory conditions. We found that curcumin can promote the differentiation of OPs and to counteract the maturation arrest of OPs induced by TNF-α by a mechanism involving PPAR-γ (peroxisome proliferator activated receptor), a ligand-activated transcription factor with neuroprotective and anti-inflammatory capabilities. Furthermore, curcumin induces the phosphorylation of the protein kinase ERK1/2 known to regulate the transition from OPs to immature oligodendrocytes (OLs), by a mechanism only partially dependent on PPAR-γ. Curcumin is also able to raise the levels of the co-factor PGC1-α and of the cytochrome c oxidase core protein COX1, even when OPs are exposed to TNF-α, through a PPAR-γ-mediated mechanism, in line with the known ability of PPAR-γ to promote mitochondrial integrity and functions, which are crucial for OL differentiation to occur. Altogether, this study provides evidence for a further mechanism of action of curcumin besides its well-known anti-inflammatory properties and supports the suggested therapeutic potential of this nutraceutical in demyelinating diseases.
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Affiliation(s)
- Antonietta Bernardo
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy. .,National Center for Research and Preclinical and Clinical Evaluation of Drugs, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Cristina Plumitallo
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Chiara De Nuccio
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.,Research Coordination and Support Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Sergio Visentin
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.,National Center for Research and Preclinical and Clinical Evaluation of Drugs, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Luisa Minghetti
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.,Research Coordination and Support Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
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13
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Abbaszadeh F, Fakhri S, Khan H. Targeting apoptosis and autophagy following spinal cord injury: Therapeutic approaches to polyphenols and candidate phytochemicals. Pharmacol Res 2020; 160:105069. [PMID: 32652198 DOI: 10.1016/j.phrs.2020.105069] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/28/2020] [Accepted: 07/03/2020] [Indexed: 12/11/2022]
Abstract
Spinal cord injury (SCI) is a neurological disorder associated with the loss of sensory and motor function. Understanding the precise dysregulated signaling pathways, especially apoptosis and autophagy following SCI, is of vital importance in developing innovative therapeutic targets and treatments. The present study lies in the fact that it reveals the precise dysregulated signaling mediators of apoptotic and autophagic pathways following SCI and also examines the effects of polyphenols and other candidate phytochemicals. It provides new insights to develop new treatments for post-SCI complications. Accordingly, a comprehensive review was conducted using electronic databases including, Scopus, Web of Science, PubMed, and Medline, along with the authors' expertise in apoptosis and autophagy as well as their knowledge about the effects of polyphenols and other phytochemicals on SCI pathogenesis. The primary mechanical injury to spinal cord is followed by a secondary cascade of apoptosis and autophagy that play critical roles during SCI. In terms of pharmacological mechanisms, caspases, Bax/Bcl-2, TNF-α, and JAK/STAT in apoptosis along with LC3 and Beclin-1 in autophagy have shown a close interconnection with the inflammatory pathways mainly glutamatergic, PI3K/Akt/mTOR, ERK/MAPK, and other cross-linked mediators. Besides, apoptotic pathways have been shown to regulate autophagy mediators and vice versa. Prevailing evidence has highlighted the importance of modulating these signaling mediators/pathways by polyphenols and other candidate phytochemicals post-SCI. The present review provides dysregulated signaling mediators and therapeutic targets of apoptotic and autophagic pathways following SCI, focusing on the modulatory effects of polyphenols and other potential phytochemical candidates.
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Affiliation(s)
- Fatemeh Abbaszadeh
- Department of Neuroscience, Faculty of Advanced Technologies in Medical Sciences, Iran University of Medical Sciences, Tehran, Iran; Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan.
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14
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Tandon A, Singh SJ, Gupta M, Singh N, Shankar J, Arjaria N, Goyal S, Chaturvedi RK. Notch pathway up-regulation via curcumin mitigates bisphenol-A (BPA) induced alterations in hippocampal oligodendrogenesis. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122052. [PMID: 32151947 DOI: 10.1016/j.jhazmat.2020.122052] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 05/02/2023]
Abstract
CNS myelination process involves proliferation and differentiation of oligodendrocyte progenitor cells (OPCs). Defective myelination causes onset of neurological disorders. Bisphenol-A (BPA), a component of plastic items, exerts adverse effects on human health. Our previous studies indicated that BPA impairs neurogenesis and myelination process stimulating cognitive dysfunctions. But, the underlying mechanism(s) of BPA induced de-myelination and probable neuroprotection by curcumin remains elusive. We found that curcumin protected BPA mediated adverse effects on oligosphere growth kinetics. Curcumin significantly improved proliferation and differentiation of OPCs upon BPA exposure both in-vitro and in-vivo. Curcumin enhanced the mRNA expression and protein levels of myelination markers in BPA treated rat hippocampus. Curcumin improved myelination potential via increasing β-III tubulin-/MBP+ cells (neuron-oligodendrocyte co-culture) and augmented fluoromyelin intensity and neurofilament/MBP+ neurons in vivo. In silico docking studies suggested Notch pathway genes (Notch-1, Hes-1 and Mib-1) as potential targets of BPA and curcumin. Curcumin reversed BPA mediated myelination inhibition via increasing the Notch pathway gene expression. Genetic and pharmacological Notch pathway inhibition by DAPT and Notch-1 siRNA exhibited decreased curcumin mediated neuroprotection. Curcumin improved BPA mediated myelin sheath degeneration and neurobehavioral impairments. Altogether, results suggest that curcumin protected BPA induced de-myelination and behavioural deficits through Notch pathway activation.
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Affiliation(s)
- Ankit Tandon
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (U.P.), India; Department of Biochemistry, School of Dental Sciences, Babu Banarasi Das University, BBD City, Faizabad Road, Lucknow 226 028, U.P., India
| | - Sangh Jyoti Singh
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (U.P.), India; Academy of Scientific and Innovative Research (AcSIR), CSIR-IITR Lucknow Campus, Lucknow, India
| | - Manjeet Gupta
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (U.P.), India
| | - Nivedita Singh
- Department of Biochemistry, School of Dental Sciences, Babu Banarasi Das University, BBD City, Faizabad Road, Lucknow 226 028, U.P., India
| | - Jai Shankar
- Advanced Imaging Facility, CSIR-IITR, Lucknow, India
| | - Nidhi Arjaria
- Advanced Imaging Facility, CSIR-IITR, Lucknow, India
| | - Shweta Goyal
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (U.P.), India; Academy of Scientific and Innovative Research (AcSIR), CSIR-IITR Lucknow Campus, Lucknow, India
| | - Rajnish Kumar Chaturvedi
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (U.P.), India.
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15
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Michaličková D, Hrnčíř T, Canová NK, Slanař O. Targeting Keap1/Nrf2/ARE signaling pathway in multiple sclerosis. Eur J Pharmacol 2020; 873:172973. [DOI: 10.1016/j.ejphar.2020.172973] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/08/2020] [Accepted: 01/28/2020] [Indexed: 12/29/2022]
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16
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Boyao Y, Mengjiao S, Caicai B, Xiaoling L, zhenxing L, Manxia W. Dynamic expression of autophagy-related factors in autoimmune encephalomyelitis and exploration of curcumin therapy. J Neuroimmunol 2019; 337:577067. [DOI: 10.1016/j.jneuroim.2019.577067] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 02/17/2019] [Accepted: 09/10/2019] [Indexed: 01/20/2023]
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17
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Mohtashami L, Shakeri A, Javadi B. Neuroprotective natural products against experimental autoimmune encephalomyelitis: A review. Neurochem Int 2019; 129:104516. [DOI: 10.1016/j.neuint.2019.104516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/29/2019] [Accepted: 07/31/2019] [Indexed: 12/16/2022]
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18
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Myalgic encephalomyelitis/chronic fatigue syndrome: From pathophysiological insights to novel therapeutic opportunities. Pharmacol Res 2019; 148:104450. [PMID: 31509764 DOI: 10.1016/j.phrs.2019.104450] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/26/2019] [Accepted: 09/06/2019] [Indexed: 12/12/2022]
Abstract
Myalgic encephalomyelitis (ME) or chronic fatigue syndrome (CFS) is a common and disabling condition with a paucity of effective and evidence-based therapies, reflecting a major unmet need. Cognitive behavioural therapy and graded exercise are of modest benefit for only some ME/CFS patients, and many sufferers report aggravation of symptoms of fatigue with exercise. The presence of a multiplicity of pathophysiological abnormalities in at least the subgroup of people with ME/CFS diagnosed with the current international consensus "Fukuda" criteria, points to numerous potential therapeutic targets. Such abnormalities include extensive data showing that at least a subgroup has a pro-inflammatory state, increased oxidative and nitrosative stress, disruption of gut mucosal barriers and mitochondrial dysfunction together with dysregulated bioenergetics. In this paper, these pathways are summarised, and data regarding promising therapeutic options that target these pathways are highlighted; they include coenzyme Q10, melatonin, curcumin, molecular hydrogen and N-acetylcysteine. These data are promising yet preliminary, suggesting hopeful avenues to address this major unmet burden of illness.
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19
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Bhat A, Mahalakshmi AM, Ray B, Tuladhar S, Hediyal TA, Manthiannem E, Padamati J, Chandra R, Chidambaram SB, Sakharkar MK. Benefits of curcumin in brain disorders. Biofactors 2019; 45:666-689. [PMID: 31185140 DOI: 10.1002/biof.1533] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/22/2019] [Indexed: 12/13/2022]
Abstract
Curcumin is widely consumed in Asia either as turmeric directly or as one of the culinary ingredients in food recipes. The benefits of curcumin in different organ systems have been reported extensively in several neurological diseases and cancer. Curcumin has got its global recognition because of its strong antioxidant, anti-inflammatory, anti-cancer, and antimicrobial activities. Additionally, it is used in diabetes and arthritis as well as in hepatic, renal, and cardiovascular diseases. Recently, there is growing attention on usage of curcumin to prevent or delay the onset of neurodegenerative diseases. This review summarizes available data from several recent studies on curcumin in various neurological diseases such as Alzheimer's disease, Parkinson's disease, Multiple Sclerosis, Huntington's disease, Prions disease, stroke, Down's syndrome, autism, Amyotrophic lateral sclerosis, anxiety, depression, and aging. Recent advancements toward increasing the therapeutic efficacy of curcuma/curcumin formulation and the novel delivery strategies employed to overcome its minimal bioavailability and toxicity studies have also been discussed. This review also summarizes the ongoing clinical trials on curcumin for different neurodegenerative diseases and patent details of curcuma/curcumin in India.
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Affiliation(s)
- Abid Bhat
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Arehally M Mahalakshmi
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Bipul Ray
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Sunanda Tuladhar
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Tousif A Hediyal
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
| | - Esther Manthiannem
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
| | - Jagadeeswari Padamati
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
| | - Ramesh Chandra
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi, India
- Dr. B. R. Ambedkar Centre for Biomedical Research University of Delhi, Delhi, India
| | - Saravana B Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Meena K Sakharkar
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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20
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Dietary Curcumin Prevented Astrocytosis, Microgliosis, and Apoptosis Caused by Acute and Chronic Exposure to Ozone. Molecules 2019; 24:molecules24152839. [PMID: 31387223 PMCID: PMC6696019 DOI: 10.3390/molecules24152839] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/27/2019] [Accepted: 07/30/2019] [Indexed: 12/30/2022] Open
Abstract
Ozone is the most oxidant tropospheric pollutant gas, causing damage through the formation of reactive oxygen and nitrogen species. Reactive species induce the nuclear factor-kappa B (NF-κB) activation leading to neuroinflammation characterized by astrocytosis, microgliosis, and apoptotic cell death. There is interest in evaluating the pharmacological activity of natural antioxidants to confer neuroprotection against the damage caused by ozone in highly polluted cities. Curcumin has been proven to exert a protective action in the central nervous system (CNS) of diverse experimental models, with no side effects. The aim of this work is to evaluate the effect of curcumin in a preventive and therapeutic manner against the astrocytosis, microgliosis, and apoptosis induced by ozone in rat hippocampus. Fifty Wistar rats were distributed into five experimental groups: The intact control, curcumin fed control, ozone-exposed group, and the preventive and therapeutic groups receiving the curcumin supplementation while exposed to ozone. Ozone caused astrocytosis and microgliosis, as well as apoptosis in the hippocampus. Meanwhile, curcumin was able to decrease the activation of microglia and astrocytes, and apoptotic cell death in both periods of exposure. Therefore, we propose that curcumin could be used as a molecule capable of counteracting the damage caused by ozone in the CNS.
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21
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Mitochondrial Dysfunction and Multiple Sclerosis. BIOLOGY 2019; 8:biology8020037. [PMID: 31083577 PMCID: PMC6627385 DOI: 10.3390/biology8020037] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/08/2019] [Accepted: 04/30/2019] [Indexed: 02/07/2023]
Abstract
In recent years, several studies have examined the potential associations between mitochondrial dysfunction and neurodegenerative diseases such as multiple sclerosis (MS), Parkinson’s disease and Alzheimer’s disease. In MS, neurological disability results from inflammation, demyelination, and ultimately, axonal damage within the central nervous system. The sustained inflammatory phase of the disease leads to ion channel changes and chronic oxidative stress. Several independent investigations have demonstrated mitochondrial respiratory chain deficiency in MS, as well as abnormalities in mitochondrial transport. These processes create an energy imbalance and contribute to a parallel process of progressive neurodegeneration and irreversible disability. The potential roles of mitochondria in neurodegeneration are reviewed. An overview of mitochondrial diseases that may overlap with MS are also discussed, as well as possible therapeutic targets for the treatment of MS and other neurodegenerative conditions.
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Kim JM, Kim JW, Choi ME, Kim S, Kim Y, Choi J. Protective effects of curcumin on radioiodine‐induced salivary gland dysfunction in mice. J Tissue Eng Regen Med 2019; 13:674-681. [DOI: 10.1002/term.2833] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/02/2019] [Accepted: 02/21/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Jeong Mi Kim
- Translational Research CenterInha University Incheon Republic of Korea
- Department of Otorhinolaryngology‐Head and Neck SurgeryInha University College of Medicine Incheon Republic of Korea
| | - Ji Won Kim
- Translational Research CenterInha University Incheon Republic of Korea
- Department of Otorhinolaryngology‐Head and Neck SurgeryInha University College of Medicine Incheon Republic of Korea
| | - Mi Eun Choi
- Translational Research CenterInha University Incheon Republic of Korea
- Department of Otorhinolaryngology‐Head and Neck SurgeryInha University College of Medicine Incheon Republic of Korea
| | - Seok‐Ki Kim
- Department of Nuclear MedicineNational Cancer Center Goyang Republic of Korea
| | - Young‐Mo Kim
- Translational Research CenterInha University Incheon Republic of Korea
- Department of Otorhinolaryngology‐Head and Neck SurgeryInha University College of Medicine Incheon Republic of Korea
| | - Jeong‐Seok Choi
- Translational Research CenterInha University Incheon Republic of Korea
- Department of Otorhinolaryngology‐Head and Neck SurgeryInha University College of Medicine Incheon Republic of Korea
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Kozin MS, Kulakova OG, Favorova OO. Involvement of Mitochondria in Neurodegeneration in Multiple Sclerosis. BIOCHEMISTRY (MOSCOW) 2018; 83:813-830. [PMID: 30200866 DOI: 10.1134/s0006297918070052] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Functional disruption and neuronal loss followed by progressive dysfunction of the nervous system underlies the pathogenesis of numerous disorders defined as "neurodegenerative diseases". Multiple sclerosis, a chronic inflammatory demyelinating disease of the central nervous system resulting in serious neurological dysfunctions and disability, is one of the most common neurodegenerative diseases. Recent studies suggest that disturbances in mitochondrial functioning are key factors leading to neurodegeneration. In this review, we consider data on mitochondrial dysfunctions in multiple sclerosis, which were obtained both with patients and with animal models. The contemporary data indicate that the axonal degeneration in multiple sclerosis largely results from the activation of Ca2+-dependent proteases and from misbalance of ion homeostasis caused by energy deficiency. The genetic studies analyzing association of mitochondrial DNA polymorphic variants in multiple sclerosis suggest the participation of mitochondrial genome variability in the development of this disease, although questions of the involvement of individual genomic variants are far from being resolved.
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Affiliation(s)
- M S Kozin
- Pirogov Russian National Research Medical University, Moscow, 117997, Russia. .,National Medical Research Center of Cardiology, Moscow, 121552, Russia
| | - O G Kulakova
- Pirogov Russian National Research Medical University, Moscow, 117997, Russia. .,National Medical Research Center of Cardiology, Moscow, 121552, Russia
| | - O O Favorova
- Pirogov Russian National Research Medical University, Moscow, 117997, Russia.,National Medical Research Center of Cardiology, Moscow, 121552, Russia
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Kamisli S, Ciftci O, Taslidere A, Basak Turkmen N, Ozcan C. The beneficial effects of 18β-glycyrrhetinic acid on the experimental autoimmune encephalomyelitis (EAE) in C57BL/6 mouse model. Immunopharmacol Immunotoxicol 2018; 40:344-352. [PMID: 30052483 DOI: 10.1080/08923973.2018.1490318] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AIM The aim of this study was to investigate the beneficial effects of 18β-glycyrrhetinic acid (GA) on the experimental allergic encephalomyelitis (EAE) in C57BL/6 mice. GA is a natural substance found in the root of licorice and is used in traditional Chinese medicine. It has many pharmacological activities such as antioxidant, anti-inflammatory, and anti-cancer effects. MATERIALS AND METHODS A total of 40 C57BL/6 mice were divided equally into four groups: (1) Control, (2) EAE, (3) GA and (4) GA + EAE. 14 days after induction of EAE with MOG35-55 and pertussis toxin, mice were treated with GA at doses of 100 mg/kg/day for 7 days intraperitoneally. RESULTS To our results, oxidative stress and lipid peroxidations (elevated TBARS levels, decreased GPx, SOD, CAT, and GSH levels) were significantly (p < .01) increased, causing EAE in brain tissue. Also, histopathological damage (Caspase-3 and IL-17 activity, p ≤ .01) and cytokine levels (TNF-α and IL-1β, p < .01) were induced with EAE in mice brain tissue. On the other hand, GA treatment significantly (p < .01) reversed oxidative histological and immunological alterations caused by EAE. CONCLUSIONS In conclusion, the GA treatment can protect the brain tissue against EAE in mice with its antioxidant and anti-inflammatory properties.
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Affiliation(s)
- Suat Kamisli
- a Faculty of Medicine, Department of Neurology , University of Inonu , Malatya , Turkey
| | - Osman Ciftci
- b Faculty of Medicine, Department of Pharmacology , University of Pamukkale , Denizli , Turkey
| | - Asli Taslidere
- c Faculty of Medicine, Department of Histology and Embryology , University of Inonu , Malatya , Turkey
| | - Nese Basak Turkmen
- d Faculty of Pharmacy, Department of Pharmaceutical Toxicology , University of Inonu , Malatya , Turkey
| | - Cemal Ozcan
- a Faculty of Medicine, Department of Neurology , University of Inonu , Malatya , Turkey
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25
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Liu X, Zhang Y, Yang Y, Lin J, Huo X, Du X, Botchway BOA, Fang M. Therapeutic Effect of Curcumin and Methylprednisolone in the Rat Spinal Cord Injury. Anat Rec (Hoboken) 2017; 301:686-696. [PMID: 29150987 DOI: 10.1002/ar.23729] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 05/11/2017] [Accepted: 06/07/2017] [Indexed: 12/14/2022]
Abstract
In addition to imperiling an individual's daily life, spinal cord injury (SCI), a catastrophic medical damage, can permanently impair an individual's body function. Methylprednisolone (MP), a medically accepted therapeutic drug for SCI, is highly controversial for the lack of consensus on its true therapeutic effect. In recent years, curcumin has served as a potential and novel therapeutic drug in SCI. Our study was intended to investigate the precise effect of MP and curcumin in SCI. We examined the function of MP and curcumin in a SCI model rat, both in vivo and in vitro, and found that there was a momentous improvement in Basso-Beattie-Bresnahan scores in the MP-treated group when compared with Cur-treated group within 14 days. Results obtained from the histological, immunohistochemistry and ultrastructural examinations evidenced the curative effect of MP was better than curcumin before Day 14. Nonetheless, there was a significant variation in the treatment effect between the MP-treated and Cur-treated groups after 14 days. The curcumin's effectiveness was more obvious than MP after 14 days following SCI. As such, we surmise that curcumin has a better therapeutic potential than MP with a prolong treatment time in the wake of SCI. Anat Rec, 301:686-696, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Xuehong Liu
- Department of Histology and Embryology, Shaoxing University School of Medicine, Shaoxing City, Zhejiang Province, China.,Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
| | - Yong Zhang
- Department of Histology and Embryology, Shaoxing University School of Medicine, Shaoxing City, Zhejiang Province, China
| | - Yang Yang
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
| | - Jingquan Lin
- Department of Histology and Embryology, Shaoxing University School of Medicine, Shaoxing City, Zhejiang Province, China
| | - Xue Huo
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoxue Du
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
| | - Benson O A Botchway
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
| | - Marong Fang
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
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Qureshi M, Al-Suhaimi EA, Wahid F, Shehzad O, Shehzad A. Therapeutic potential of curcumin for multiple sclerosis. Neurol Sci 2017; 39:207-214. [PMID: 29079885 DOI: 10.1007/s10072-017-3149-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 10/07/2017] [Indexed: 01/08/2023]
Abstract
Multiple sclerosis (MS) is a chronic autoimmune inflammatory disease of the central nervous system (CNS), characterized by demyelination, neuronal injury, and breaching of the blood-brain barrier (BBB). Epidemiological studies have shown that immunological, genetic, and environmental factors contribute to the progression and development of MS. T helper 17 (Th17) cells are crucial immunological participant in the pathophysiology of MS. The aberrant production of IL-17 and IL-22 by Th17 cells crosses BBB promotes its disruption and interferes with transmission of nerve signals through activation of neuroinflammation in the CNS. These inflammatory responses promote demyelination through transcriptional activation of signal transducers and activators of transcription-1 (STAT-1), nuclear factor kappa-B (NF-κB), matrix metalloproteinases (MMPs), interferon ϒ (IFNϒ), and Src homology region 2 domain-containing phosphatase-1 (SHP-1). B cells also contribute to disease progression through abnormal regulation of antibodies, cytokines, and antigen presentation. Additionally, oxidative stress has been known as a causative agent for the MS. Curcumin is a hydrophobic yellowish diphenolic component of turmeric, which can interact and modulate multiple cell signaling pathways and prevent the development of various autoimmune neurological diseases including MS. Studies have reported curcumin as a potent anti-inflammatory, antioxidant agent that could modulate cell cycle regulatory proteins, enzymes, cytokines, and transcription factors in CNS-related disorders including MS. The current study summarizes the reported knowledge on therapeutic potential of curcumin against MS, with future indication as neuroprotective and neuropharmacological drug.
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Affiliation(s)
- Munibah Qureshi
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Ebtesam A Al-Suhaimi
- Department of Biology, Sciences College, University of Dammam, Dammam, Saudi Arabia
| | - Fazli Wahid
- Biotechnology Program, Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan
| | - Omer Shehzad
- Department of pharmacy, Abdul Wali Khan University , Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Adeeb Shehzad
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan.
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Shehzad A, Qureshi M, Anwar MN, Lee YS. Multifunctional Curcumin Mediate Multitherapeutic Effects. J Food Sci 2017; 82:2006-2015. [PMID: 28771714 DOI: 10.1111/1750-3841.13793] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 05/24/2017] [Accepted: 05/30/2017] [Indexed: 12/12/2022]
Abstract
Inflammation can promote the development of arthritis, obesity, cardiovascular, type II diabetes, pancreatitis, metabolic and neurodegenerative diseases, and certain types of cancer. Compounds isolated from plants have been practiced since ancient times for curing various ailments including inflammatory disorders and to support normal physiological functions. Curcumin (diferuloylmethane) is a yellow coloring agent, extracted from turmeric that has been used for the prevention and treatment of various inflammatory diseases. Numerous studies have shown that curcumin modulate multiple molecular targets and can be translated to the clinics for multiple therapeutic processes. There is compelling evidence that curcumin can block cell proliferation, invasion, and angiogenesis as well as reduced the prolonged survival of cancer cells. Curcumin mediates anti-inflammatory effect through downregulation of inflammatory cytokines, transcription factors, protein kinases, and enzymes that promote inflammation and development of chronic diseases. In addition, curcumin induces apoptosis through mitochondrial and receptor-mediated pathways by activating caspase cascades. Curcumin is a safe and nontoxic drug that has been reported to be well tolerated. Available clinical trials support the potential role of curcumin for treatment of various inflammatory disorders. However, curcumin's efficacy is hindered by poor absorption and low bioavailability, which limit its translation into clinics. This review outlines the potential pharmacological and clinical role of curcumin, which provide a gateway for the beneficial role of plant isolated compounds in treatment of various inflammatory diseases and cancer.
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Affiliation(s)
- Adeeb Shehzad
- Dept. of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering (SMME), Natl. Univ. of Sciences and Technology, (NUST), Islamabad, Pakistan
| | - Munibah Qureshi
- Dept. of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering (SMME), Natl. Univ. of Sciences and Technology, (NUST), Islamabad, Pakistan
| | - Muhammad Nabeel Anwar
- Dept. of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering (SMME), Natl. Univ. of Sciences and Technology, (NUST), Islamabad, Pakistan
| | - Young Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook Natl. Univ., Daegu, Korea
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Curcumin Attenuates Gentamicin-Induced Kidney Mitochondrial Alterations: Possible Role of a Mitochondrial Biogenesis Mechanism. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:917435. [PMID: 26345660 PMCID: PMC4541007 DOI: 10.1155/2015/917435] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 07/03/2015] [Accepted: 07/15/2015] [Indexed: 11/18/2022]
Abstract
It has been shown that curcumin (CUR), a polyphenol derived from Curcuma longa, exerts a protective effect against gentamicin- (GM-) induced nephrotoxicity in rats, associated with a preservation of the antioxidant status. Although mitochondrial dysfunction is a hallmark in the GM-induced renal injury, the role of CUR in mitochondrial protection has not been studied. In this work, LLC-PK1 cells were preincubated 24 h with CUR and then coincubated 48 h with CUR and 8 mM GM. Treatment with CUR attenuated GM-induced drop in cell viability and led to an increase in nuclear factor (erythroid-2)-related factor 2 (Nrf2) nuclear accumulation and peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) cell expression attenuating GM-induced losses in these proteins. In vivo, Wistar rats were injected subcutaneously with GM (75 mg/Kg/12 h) during 7 days to develop kidney mitochondrial alterations. CUR (400 mg/Kg/day) was administered orally 5 days before and during the GM exposure. The GM-induced mitochondrial alterations in ultrastructure and bioenergetics as well as decrease in activities of respiratory complexes I and IV and induction of calcium-dependent permeability transition were mostly attenuated by CUR. Protection of CUR against GM-induced nephrotoxicity could be in part mediated by maintenance of mitochondrial functions and biogenesis with some participation of the nuclear factor Nrf2.
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Chen C, Du P, Wang J. Paeoniflorin ameliorates acute myocardial infarction of rats by inhibiting inflammation and inducible nitric oxide synthase signaling pathways. Mol Med Rep 2015; 12:3937-3943. [PMID: 26035555 DOI: 10.3892/mmr.2015.3870] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 04/28/2015] [Indexed: 11/06/2022] Open
Abstract
Paeoniflorin (PF) is the main active component of the commonly used Traditional Chinese Medicine peony, Paeonia Suffruticosa. PF has diverse biological functions and exhibits anti‑oxidative, anti‑inflammatory and anti‑apoptotic activity. Inducible nitric oxide synthase (iNOS) is a catalyzing enzyme that is involved in the synthesis of nitric oxide (NO). NO has an important regulatory role in the cardiovascular, immune and nervous systems. PF has previously been demonstrated to inhibit the gene expression of iNOS. The present study aimed to identify a potentially novel cytoprotective function of PF, and to elucidate its effects against myocardial ischemic damage in a rat model of acute myocardial infarction (AMI). PF was able to significantly decrease the myocardial infarct size as well as the activities of creatine kinase (CK), the MB isoenzyme of CK, lactate dehydrogenase and cardiac troponin T. In addition, in the PF‑treated groups, the expression levels of tumor necrosis factor‑α, interleukin (IL)‑1β, IL‑6 and nuclear factor‑κB were markedly inhibited. Furthermore, treatment with PF inhibited the activities and protein expression levels of iNOS. Decreased caspase‑3 and caspase‑9 activities were also observed in the AMI rat model treated with various doses of PF. The results of the present study indicated that the cardioprotective effects of PF may be associated with the inhibition of inflammation and iNOS signaling pathways.
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Affiliation(s)
- Chang Chen
- Department of Emergency, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Ping Du
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Junjie Wang
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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Hesperidin, a Citrus Flavonoid, Has the Ameliorative Effects Against Experimental Autoimmune Encephalomyelitis (EAE) in a C57BL/J6 Mouse Model. Neurochem Res 2015; 40:1111-20. [PMID: 25859982 DOI: 10.1007/s11064-015-1571-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 03/25/2015] [Accepted: 04/01/2015] [Indexed: 12/14/2022]
Abstract
The aim of this study was determined the effects of Hesperidin (HP) on neuronal damage in brain tissue caused by Experimental allergic encephalomyelitis (EAE), an established model of multiple sclerosis in C57BL/J6 mice. To explore 40 mice were equally divided into four groups: (1) Control, (2) EAE, (3) HP, and (4) HP + EAE. 14 days after induction of EAE with MOG35-55 and pertussis toxin, the mice treated with HP at the doses of 50 mg/kg/day for 7 days subcutaneously. To our results HP treatment prevents the oxidative stress caused by EAE via a decrease in lipid peroxidations and increase in elements of the antioxidant defense systems in brain tissue. Also, EAE elevate the IL-17, express the pro-inflammatory cytokines, and caspase-3-like immunreactivity, show apoptosis, staining in EAE mice brain and increased the incidence of histopathological damage. However, immonohistochemical and histological changes were reversed with HP. Moreover, elevated TNF-α and IL-1β levels, a result of EAE, were decreased in serum and neurological deficits as clinical signs were reversed with HP treatment in EAE mice, given HP. In conclusion, HP treatment effectively prevents oxidative, immunological and histological damage in the brain caused by EAE. It was thought that the beneficial effects of HP are likely a result of its strong antioxidant and anti-inflammatory properties.
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Abstract
INTRODUCTION Caspase-9 is the apoptotic initiator protease of the intrinsic or mitochondrial apoptotic pathway, which is activated at multi-protein activation platforms. Its activation is believed to involve homo-dimerization of the monomeric zymogens. It binds to the apoptosome to retain substantial catalytic activity. Variety of apoptotic stimuli can regulate caspase-9. However, the mechanism of action of various regulators of caspase-9 has not been summarized and compared yet. In this article, we elucidate the regulators of caspase-9 including microRNAs, natural compounds that are related to caspase-9 and ongoing clinical trials with caspase-9 to better understand the caspase-9 in suppressing cancer. AREAS COVERED In this study, the basic mechanism of apoptosis pathways, regulators of caspase-9 and the development of drugs to regulate caspase-9 are reviewed. Also, ongoing clinical trials for caspase-9 are discussed. EXPERT OPINION Apoptosis has crucial role in cancer, brain disease, aging and heart disease to name a few. Since caspase-9 is an initiator caspase of apoptosis, it is an important therapeutic target of various diseases related to apoptosis. Therefore, a deep understanding on the roles as well as regulators of caspase-9 is required to find more effective ways to conquer apoptosis-related diseases especially cancer.
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Affiliation(s)
- Bonglee Kim
- Kyunghee University, College of Korean Medicine, Cancer Preventive Material Development Research Center , 1 Hoegi-dong, Dongdaemun-ku, Seoul 131-701 , South Korea
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