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Arumugam M, Pachamuthu RS, Rymbai E, Jha AP, Rajagopal K, Kothandan R, Muthu S, Selvaraj D. Gene network analysis combined with preclinical studies to identify and elucidate the mechanism of action of novel irreversible Keap1 inhibitor for Parkinson's disease. Mol Divers 2024:10.1007/s11030-024-10965-y. [PMID: 39145879 DOI: 10.1007/s11030-024-10965-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 08/07/2024] [Indexed: 08/16/2024]
Abstract
The cysteine residues of Keap1 such as C151, C273, and C288 are critical for its repressor activity on Nrf2. However, to date, no molecules have been identified to covalently modify all three cysteine residues for Nrf2 activation. Hence, in this study, our goal is to discover new Keap1 covalent inhibitors that can undergo a Michael addition with all three cysteine residues. The Keap1's intervening region was modeled using Modeller v10.4. Covalent docking and binding free energy were calculated using CovDock. Molecular dynamics (MD) was performed using Desmond. Various in-vitro assays were carried out to confirm the neuroprotective effects of the hit molecule in 6-OHDA-treated SH-SY5Y cells. Further, the best hit was evaluated in vivo for its ability to improve rotenone-induced postural instability and cognitive impairment in male rats. Finally, network pharmacology was used to summarize the complete molecular mechanism of the hit molecule. Chalcone and plumbagin were found to form the necessary covalent bonds with all three cysteine residues. However, MD analysis indicated that the binding of plumbagin is more stable than chalcone. Plumbagin displayed neuroprotective effects in 6-OHDA-treated SH-SY5Y cells at concentrations 0.01 and 0.1 μM. Plumbagin at 0.1 µM had positive effects on reactive oxygen species formation and glutathione levels. Plumbagin also improved postural instability and cognitive impairment in rotenone-treated male rats. Our network analysis indicated that plumbagin could also improve dopamine signaling. Additionally, plumbagin could exhibit anti-oxidant and anti-inflammatory activity through the activation of Nrf2. Cumulatively, our study suggests that plumbagin is a novel Keap1 covalent inhibitor for Nrf2-mediated neuroprotection in PD.
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Affiliation(s)
- Monisha Arumugam
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Ranjith Sanjeeve Pachamuthu
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Emdormi Rymbai
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Aditya Prakash Jha
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Kalirajan Rajagopal
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Ram Kothandan
- Bioinformatics Laboratory, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore, Tamil Nadu, India
| | - Santhoshkumar Muthu
- Department of Biochemistry, Kongunadu Arts and Science College, GN Mills, Coimbatore, Tamil Nadu, India.
| | - Divakar Selvaraj
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India.
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Alam MZ, Bagabir HA, Zaher MAF, Alqurashi TMA, Alghamdi BS, Kazi M, Ashraf GM, Alshahrany GA, Alzahrani NA, Bakhalgi RM, Juweiriya, Al-Thepyani M, AboTaleb HA, Aldhahri RS, El-Aziz GSA, Al-Abbasi FA, Eibani LK, Alzahrani FJ, Khan MSA. Black Seed Oil-Based Curcumin Nanoformulations Ameliorated Cuprizone-Induced Demyelination in the Mouse Hippocampus. Mol Neurobiol 2024:10.1007/s12035-024-04310-5. [PMID: 38890237 DOI: 10.1007/s12035-024-04310-5] [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: 02/27/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Multiple sclerosis (MS) is a neurodegenerative disease characterized by the demyelination of nerves, axonal damage, and neuroinflammation. Cognition impairment, pain, and loss of mobility are some of the usual complications of MS. It has been postulated that the overproduction of proinflammatory cytokines and reactive oxygen species (ROS) are the main factors that contribute to MS pathology. Among various animal models, the cuprizone model is the most widely used model for investigating MS-related pathology. We assessed the effects of cuprizone along with the protective effects of some black seed oil-based nanoformulations of curcumin with and without piperine, in mice hippocampus in terms of the changes in antioxidant enzymes, transcription factors, and cytokines during demyelination and remyelination processes. The results of behavioral studies point toward impairment in working memory following the feeding of cuprizone for 5 weeks. However, in treatment groups, mice seemed to prevent the toxic effects of cuprizone. Nanoformulations used in this study were found to be highly effective in lowering the amount of ROS as indicated by the levels of antioxidant enzymes like catalase, superoxide dismutase, glutathione, and glutathione peroxidase. Moreover, nanoformulations CCF and CCPF were observed resisting the toxic effects of cuprizone. We observed greater expression of NFκB-p65 in the CPZ group than in the control group. CCF nanoformulation had a better inhibitory effect on NFκB-p65 than other formulations. Histological examination of the hippocampus was also conducted. Nanoformulations used here were found effective in reversing MS-related pathophysiology and hence have the potential to be applied as adjuvant therapy for MS treatment.
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Affiliation(s)
- Mohammad Zubair Alam
- Neuroscience and Geroscience Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hala Abubaker Bagabir
- Department of Physiology, Faculty of Medicine, King Abdulaziz University, Rabigh Campus, Jeddah, Saudi Arabia
| | | | - Thamer M A Alqurashi
- Department of Pharmacology, Faculty of Medicine, Rabigh Campus, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Badrah S Alghamdi
- Neuroscience and Geroscience Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Physiology, Neuroscience Unit, Faculty of Medicine, King Abdulaziz University, 22252, Jeddah, Saudi Arabia
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. BOX-2457, 11451, Riyadh, Saudi Arabia
| | - Ghulam Md Ashraf
- Neuroscience and Geroscience Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Gadah Ali Alshahrany
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Noor Ahmed Alzahrani
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rafal Mohammed Bakhalgi
- Department of Microbiology, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Juweiriya
- Department of Chemistry, Aligarh Muslim University, Aligarh, UP, India
| | - Mona Al-Thepyani
- Department of Chemistry, College of Sciences & Arts, King Abdulaziz University, Rabigh Campus, Jeddah, Saudi Arabia
| | | | - Rahaf Saeed Aldhahri
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Biological Sciences, Faculty of Sciences, University of Jeddah, Jeddah, Saudi Arabia
| | - Gamal Said Abd El-Aziz
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fahad A Al-Abbasi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Loay Khaled Eibani
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Faisal Jaman Alzahrani
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohd Sajjad Ahmad Khan
- Department of Basic Sciences, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Aliyu M, Zohora FT, Ceylan A, Hossain F, Yazdani R, Azizi G. Immunopathogenesis of multiple sclerosis: molecular and cellular mechanisms and new immunotherapeutic approaches. Immunopharmacol Immunotoxicol 2024; 46:355-377. [PMID: 38634438 DOI: 10.1080/08923973.2024.2330642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 03/09/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Multiple sclerosis (MS) is a central nervous system (CNS) demyelinating autoimmune disease with increasing global prevalence. It predominantly affects females, especially those of European descent. The interplay between environmental factors and genetic predisposition plays a crucial role in MS etiopathogenesis. METHODS We searched recent relevant literature on reputable databases, which include, PubMed, Embase, Web of Science, Scopus, and ScienceDirect using the following keywords: multiple sclerosis, pathogenesis, autoimmunity, demyelination, therapy, and immunotherapy. RESULTS Various animal models have been employed to investigate the MS etiopathogenesis and therapeutics. Autoreactive T cells within the CNS recruit myeloid cells through chemokine expression, leading to the secretion of inflammatory cytokines driving the MS pathogenesis, resulting in demyelination, gliosis, and axonal loss. Key players include T cell lymphocytes (CD4+ and CD8+), B cells, and neutrophils. Signaling dysregulation in inflammatory pathways and the immunogenetic basis of MS are essential considerations for any successful therapy to MS. Data indicates that B cells and neutrophils also have significant roles in MS, despite the common belief that T cells are essential. High neutrophil-to-lymphocyte ratios correlate with MS severity, indicating their contribution to disease progression. Dysregulated signaling pathways further exacerbate MS progression. CONCLUSION MS remains incurable, but disease-modifying therapies, monoclonal antibodies, and immunomodulatory drugs offer hope for patients. Research on the immunogenetics and immunoregulatory functions of gut microbiota is continuing to provide light on possible treatment avenues. Understanding the complex interplay between genetic predisposition, environmental factors, and immune dysregulation is critical for developing effective treatments for MS.
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Affiliation(s)
- Mansur Aliyu
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, International Campus, TUMS-IC, Tehran, Iran
- Department of Medical Microbiology, Faculty of Clinical Science, College of Health Sciences, Bayero University, Kano, Nigeria
| | - Fatema Tuz Zohora
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Malaysia
| | - Ayca Ceylan
- Medical Faculty, Department of Pediatrics, Division of Immunology and Allergy, Selcuk University, Konya, Turkey
| | - Fariha Hossain
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Malaysia
| | - Reza Yazdani
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Gholamreza Azizi
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
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Ashrafpour S, Nasr-Taherabadi MJ, Sabouri-Rad A, Hosseinzadeh S, Pourabdolhossein F. Arbutin intervention ameliorates memory impairment in a rat model of lysolecethin induced demyelination: Neuroprotective and anti-inflammatory effects. Behav Brain Res 2024; 469:115041. [PMID: 38723674 DOI: 10.1016/j.bbr.2024.115041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/17/2024] [Accepted: 05/03/2024] [Indexed: 05/23/2024]
Abstract
Cognitive impairment (CI) and memory deficit are prevalent manifestations of multiple sclerosis (MS). This study explores the therapeutic potential of arbutin on memory deficits using a rat hippocampal demyelination model induced by lysophosphatidylcholine (LPC). Demyelination was induced by bilateral injection of 1% LPC into the CA1 area of the hippocampus, and the treated group received daily arbutin injections (50 mg/kg, i.p) for two weeks. Arbutin significantly improved memory impairment 14 days post-demyelination as assessed by Morris water maze test. Histological and immunohistochemical analyses demonstrated that arbutin reduced demyelination suppressed pro-inflammatory markers (IL-1β, TNF-α) and increased anti-inflammatory cytokine IL-10. Arbutin also diminished astrocyte activation, decreased iNOS, enhanced anti-oxidative factors (Nrf2, HO-1), and exhibited neuroprotective effects by elevating myelin markers (MBP) and brain derived neurotrophic factor (BDNF). These findings propose arbutin as a potential therapeutic candidate for multiple sclerosis-associated memory deficits, warranting further clinical exploration.
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Affiliation(s)
- Sahand Ashrafpour
- Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | | | - Alie Sabouri-Rad
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Soheila Hosseinzadeh
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Pourabdolhossein
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Department of Physiology, School of Medicine, Babol University of Medical Sciences, Babol, Iran.
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Khan Z, Mehan S, Gupta GD, Narula AS. Immune System Dysregulation in the Progression of Multiple Sclerosis: Molecular Insights and Therapeutic Implications. Neuroscience 2024; 548:9-26. [PMID: 38692349 DOI: 10.1016/j.neuroscience.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/28/2024] [Accepted: 04/09/2024] [Indexed: 05/03/2024]
Abstract
Multiple sclerosis (MS), a prevalent neurological disorder, predominantly affects young adults and is characterized by chronic autoimmune activity. The study explores the immune system dysregulation in MS, highlighting the crucial roles of immune and non-neuronal cells in the disease's progression. This review examines the dual role of cytokines, with some like IL-6, TNF-α, and interferon-gamma (IFN-γ) promoting inflammation and CNS tissue injury, and others such as IL-4, IL-10, IL-37, and TGF-β fostering remyelination and protecting against MS. Elevated chemokine levels in the cerebrospinal fluid (CSF), including CCL2, CCL5, CXCL10, CXCL13, and fractalkine, are analyzed for their role in facilitating immune cell migration across the blood-brain barrier (BBB), worsening inflammation and neurodegeneration. The study also delves into the impact of auto-antibodies targeting myelin components like MOG and AQP4, which activate complement cascades leading to further myelin destruction. The article discusses how compromised BBB integrity allows immune cells and inflammatory mediators to infiltrate the CNS, intensifying MS symptoms. It also examines the involvement of astrocytes, microglia, and oligodendrocytes in the disease's progression. Additionally, the effectiveness of immunomodulatory drugs such as IFN-β and CD20-targeting monoclonal antibodies (e.g., rituximab) in modulating immune responses is reviewed, highlighting their potential to reduce relapse rates and delaying MS progression. These insights emphasize the importance of immune system dysfunction in MS development and progression, guiding the development of new therapeutic strategies. The study underscores recent advancements in understanding MS's molecular pathways, opening avenues for more targeted and effective treatments.
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Affiliation(s)
- Zuber Khan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy (Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India), Moga 142001, Punjab, India
| | - Sidharth Mehan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy (Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India), Moga 142001, Punjab, India.
| | - Ghanshyam Das Gupta
- Department of Pharmaceutics, ISF College of Pharmacy (Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India), Moga, Punjab, India
| | - Acharan S Narula
- Narula Research, LLC, 107 Boulder Bluff, Chapel Hill, NC 27516, USA
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Nema M, Dutta BJ, Singh S. Alpha-Lipoic acid alleviates imidacloprid-induced neuro-behavioral deficits in rats via Nrf2/HO-1 pathway. Toxicol Mech Methods 2024; 34:176-188. [PMID: 37904548 DOI: 10.1080/15376516.2023.2266027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/27/2023] [Indexed: 11/01/2023]
Abstract
Imidacloprid (IMI), a widely used pesticide in agriculture and a potential food contaminant, poses significant health concerns. This study sought to comprehensively evaluate its neurotoxic effects while investigating the potential protective role of alpha-lipoic acid (ALA), a naturally occurring dietary antioxidant renowned for its capacity to combat oxidative stress, support cardiovascular health, and maintain optimal nerve function. In this study, 28 rats were divided evenly into four groups and administered oral treatments of corn oil, IMI, IMI + ALA, and ALA, respectively. The results of the study indicated that rats exposed to IMI exhibited significant neurobehavioral impairments, decreased levels of antioxidant enzymes and acetylcholinesterase activity, reduced expression of HO-1 and Nrf2, and increased levels of pro-inflammatory cytokines like IL-6 and TNF-α in their hippocampal tissues. Furthermore, histopathological analysis of the brain tissues, specifically cortex and hippocampus, from the IMI-treated group revealed varying degrees of neuronal degeneration. In contrast, rats co-administered ALA alongside IMI showed noticeable improvements in all the assessed toxicological parameters. This study underscores the vital significance of ALA as a potential therapeutic adjunct in mitigating the adverse neurobehavioral consequences of insecticide exposure. By harnessing the Nrf2/HO-1 pathway, ALA demonstrates its ability to shield against IMI-induced neurotoxicity, offering a promising avenue for enhancing public health and safety. As a result, our findings advocate for the incorporation of ALA as a daily dietary supplement to fortify resilience against oxidative stress-related neurobehavioral deficits linked to pesticide exposure, thereby advancing our understanding of neuroprotection strategies in the face of environmental challenges.
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Affiliation(s)
- Mohit Nema
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar, India
| | - Bhaskar Jyoti Dutta
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar, India
| | - Sanjiv Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar, India
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Hasaniani N, Ghasemi-Kasman M, Halaji M, Rostami-Mansoor S. Bifidobacterium breve Probiotic Compared to Lactobacillus casei Causes a Better Reduction in Demyelination and Oxidative Stress in Cuprizone-Induced Demyelination Model of Rat. Mol Neurobiol 2024; 61:498-509. [PMID: 37639065 DOI: 10.1007/s12035-023-03593-4] [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: 03/17/2023] [Accepted: 08/17/2023] [Indexed: 08/29/2023]
Abstract
Despite the anatomical separation, strong evidence suggested a bidirectional association between gut microbiota and central nervous system. Cross-talk between gut microbiota and brain has an important role in the pathophysiology of neurodegenerative disorders and regenerative processes. However, choosing the appropriate probiotics and combination therapy of probiotics to provide a synergistic effect is very crucial. In the present study, we investigated the effect of Lactobacillus casei (L. casei) and Bifidobacterium breve (B. breve) on alternation performance, oxidant/antioxidant biomarkers, the extent of demyelination, and the expression level of HO-1, Nrf-2, Olig2, MBP, PDGFRα, and BDNF in cuprizone (CPZ)-induced demyelination model of rat corpus callosum. In order to induce this model, rats received oral administration of CPZ 0.6% w/w in corn oil for 28 days. Then, L. casei, B. breve, or their combinations were orally administrated for 28 days. Y maze test was performed to investigate the alternation performance. Oxidant/antioxidant biomarkers were determined by colorimetric methods. Extent of demyelination was investigated using FluoroMyelin staining. The genes' expression levels of antioxidant and myelin lineage cells were assessed by quantitative real time PCR. The results showed the probiotics supplementation significantly improve the alternation performance and antioxidant capacity in demyelinated corpus callosum. Interestingly, B. breve supplementation alleviated demyelination and oxidative stress levels more than the administration of L. casei alone or the combination of two probiotics. These observations suggest that B. breve could provide a supplementary strategy for the treatment of multiple sclerosis by increasing antioxidant capacity and remyelination.
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Affiliation(s)
- Nima Hasaniani
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
- Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Ghasemi-Kasman
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
- Department of Physiology, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mehrdad Halaji
- Infectious Diseases and Tropical Medicine Research Center, Babol University of Medical Sciences, Babol, Iran
| | - Sahar Rostami-Mansoor
- Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran.
- Department of Laboratory Sciences, Faculty of Paramedical Sciences, Babol University of Medical Sciences, Babol, Iran.
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Beyaz S, Aslan A, Gok O, Ozercan IH, Agca CA. Fullerene C 60 protects against 7,12-dimethylbenz [a] anthracene (DMBA) induced-pancreatic damage via NF-κB and Nrf-2/HO-1 axis in rats. Toxicol Res (Camb) 2023; 12:954-963. [PMID: 37915491 PMCID: PMC10615826 DOI: 10.1093/toxres/tfad092] [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: 06/22/2023] [Revised: 08/22/2023] [Accepted: 09/06/2023] [Indexed: 11/03/2023] Open
Abstract
The objective of this investigation was to investigate the protective effects of fullerene C60 nanoparticle against pancreatic damage experimentally induced by 7,12-dimethylbenz [a] anthracene (DMBA) in female rats. Fullerene C60 nanoparticle was administered to rats 5 times a week by oral gavage (o.g) at 1.7 mg/kg bw 7 days after DMBA administration. 60 Wistar albino female rats divided to four groups; Groups: (1) Control group: Fed with standard diet; (2) Fullerene C60 group: Fullerene C60 (1.7 mg/kg bw); (3) DMBA group: DMBA (45 mg/kg bw); (4) Fullerene C60 + DMBA group: Fullerene C60 (1.7 mg/kg bw) and DMBA (45 mg/kg bw). Lipid peroxidation malondialdehyde (MDA), catalase activity (CAT) and glutathione (GSH) levels in pancreatic tissue were determined by spectrophotometer. Protein expression levels of p53, HO-1, p38-α (MAPK), Nrf-2, NF-κB and COX-2 in pancreatic tissue were determined by western blotting technique. In our findings, compared to the group given DMBA, MDA levels and p38-α, NF-κB and COX-2 levels decreased, CAT activity, GSH level, total protein density and p53, HO-1, Nrf-2 levels in the groups given fullerene C60 nanoparticle an increase in expression levels was observed. Our results showed that fullerene C60 nanoparticle may be more beneficial in preventing pancreatic damage.
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Affiliation(s)
- Seda Beyaz
- Department of Biology-Molecular Biology and Genetics, Faculty of Science, Firat University, Elazig, Turkey
| | - Abdullah Aslan
- Department of Biology-Molecular Biology and Genetics, Faculty of Science, Firat University, Elazig, Turkey
| | - Ozlem Gok
- Department of Biology-Molecular Biology and Genetics, Faculty of Science, Firat University, Elazig, Turkey
| | | | - Can Ali Agca
- Department of Molecular Biology and Genetics Bingol, Faculty of Science, Bingol University, Bingol, Turkey
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Sethi P, Mehan S, Khan Z, Chhabra S. Acetyl-11-keto-beta boswellic acid(AKBA) modulates CSTC-pathway by activating SIRT-1/Nrf2-HO-1 signalling in experimental rat model of obsessive-compulsive disorder: Evidenced by CSF, blood plasma and histopathological alterations. Neurotoxicology 2023; 98:61-85. [PMID: 37549874 DOI: 10.1016/j.neuro.2023.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 07/23/2023] [Accepted: 08/03/2023] [Indexed: 08/09/2023]
Abstract
Obsessive-Compulsive disorder (OCD) is a long-term and persistent mental illness characterised by obsessive thoughts and compulsive behaviours. Numerous factors can contribute to the development or progression of OCD. These factors may result from the dysregulation of multiple intrinsic cellular pathways, including SIRT-1, Nrf2, and HO-1. Inhibitors of selective serotonin reuptake (SSRIs) are effective first-line treatments for OCD. In our ongoing research, we have investigated the role of SIRT-1, Nrf2, and HO-1, as well as the neuroprotective potential of Acetyl-11-keto-beta boswellic acid (AKBA) against behavioural and neurochemical changes in rodents treated with 8-OH-DPAT. In addition, the effects of AKBA were compared to those of fluvoxamine (FLX), a standard OCD medication. Injections of 8-OH-DPAT into the intra-dorso raphe nuclei (IDRN) of rats for seven days induced repetitive and compulsive behaviour accompanied by elevated oxidative stress, inflammatory processes, apoptosis, and neurotransmitter imbalances in CSF, blood plasma, and brain samples. Chronic administration of AKBA at 50 mg/kg and 100 mg/kg p.o. restored histopathological alterations in the cortico-striatal-thalamo-cortical (CSTC) pathway, including the cerebral cortex, striatum, and hippocampal regions. Our investigation revealed that when AKBA and fluvoxamine were administered together, the alterations were restored to a greater degree than when administered separately. These findings demonstrate that the neuroprotective effect of AKBA can serve as an effective basis for developing a novel OCD treatment.
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Affiliation(s)
- Pranshul Sethi
- Division of Neuroscience, Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
| | - Sidharth Mehan
- Division of Neuroscience, Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India.
| | - Zuber Khan
- Division of Neuroscience, Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
| | - Swesha Chhabra
- Division of Neuroscience, Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
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Sherawat K, Mehan S. Tanshinone-IIA mediated neuroprotection by modulating neuronal pathways. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1647-1667. [PMID: 37010572 DOI: 10.1007/s00210-023-02476-8] [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: 01/28/2023] [Accepted: 03/23/2023] [Indexed: 04/04/2023]
Abstract
The progression of neurological diseases is mainly attributed to oxidative stress, apoptosis, inflammation, and trauma, making them a primary public concern. Since no drugs can stop these neurological disorders from happening, active phytochemical intervention has been suggested as a possible treatment. Among the several phytochemicals being studied for their potential health advantages, tanshinone-IIA (Tan-IIA ) stands out due to its wide range of therapeutic effects. Tan-IIA, derived from the Salvia miltiorrhiza plant, is a phenanthrenequinone. The pharmacological characteristics of Tan-IIAagainst various neurodegenerative and neuropsychiatric illnesses have led researchers to believe that the compound possesses neuroprotective potential. Tan-IIA has therapeutic potential in treating neurological diseases due to its capacity to cross the blood-brain barrier and its broad range of activities. In treating neurological disorders, Tan-IIA has been shown to have neuroprotective effects such as anti-apoptotic, anti-inflammatory, BBB protectant, and antioxidant properties. This article concisely summarises the latest scientific findings about the cellular and molecular aspects of Tan-IIA neuroprotection in relation to various neurological diseases. The results of preclinical studies on Tan-IIA provide insight into its potential application in future therapeutic development. This molecule rapidly establishes as a prominent bioactive compound for clinical research.
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Affiliation(s)
- Kajal Sherawat
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Sidharth Mehan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India.
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11
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Yu J, Zhou L, Song H, Huang Q, Yu J, Wang S, Zhang X, Li W, Niu X. (-)-Epicatechin gallate blocked cellular foam formation in atherosclerosis by modulating CD36 expression in vitro and in vivo. Food Funct 2023; 14:2444-2458. [PMID: 36786689 DOI: 10.1039/d2fo03218j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Green tea is popular worldwide, so its main active ingredients have attracted people's attention. (-)-Epicatechin gallate (ECG) is the main active component of green tea polyphenols, which has good antioxidant activity, but its cardiovascular intervention is unknown. This study established in vitro and in vivo models of ox-LDL-induced macrophages and HFD-induced ApoE-/- mice to study the effects of ECG on atherosclerotic lesions. Firstly, the study confirmed that ECG has a therapeutic effect in different stages of atherosclerotic plaques. Subsequently, the results showed that the ox-LDL-induced release of pro-inflammatory mediators and the expression of the related protein CD86 in macrophages were inhibited by ECG. ECG blocked the formation of cellular foam by downregulating the expression of CD36 and LOX-1 proteins, thereby increasing SOD activity and reducing MDA production in cells. ECG also prevented ox-LDL-induced apoptosis, promoted macrophage migration, and increased plaque stability. The results confirmed that ECG attenuated ox-LDL-induced green fluorescence of ROS in macrophages by inhibiting the expression of related proteins in the NF-κB signaling pathway and activating the HO-1/Nrf2 signaling pathway. These results indicated that ECG has anti-oxidative stress and anti-inflammatory potential, and its molecular mechanism may be related to the inhibition of intracellular NF-κB signaling pathway proteins and activation of the HO-1/Nrf2 signaling pathway.
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Affiliation(s)
- Jinjin Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Lili Zhou
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Huixin Song
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Qiuxia Huang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Jiabao Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Siqi Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Xinya Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Weifeng Li
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
| | - Xiaofeng Niu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P. R. China.
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12
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Sharma A, Jaiswal V, Park M, Lee HJ. Biogenic silver NPs alleviate LPS-induced neuroinflammation in a human fetal brain-derived cell line: Molecular switch to the M2 phenotype, modulation of TLR4/MyD88 and Nrf2/HO-1 signaling pathways, and molecular docking analysis. BIOMATERIALS ADVANCES 2023; 148:213363. [PMID: 36881963 DOI: 10.1016/j.bioadv.2023.213363] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023]
Abstract
Silver nanoparticles (AgNPs) have inconsistent findings against inflammation. Although a wealth of literature on the beneficial effects of green-synthesized AgNPs has been published, a detailed mechanistic study of green AgNPs on the protective effects against lipopolysaccharide (LPS)-induced neuroinflammation using human microglial cells (HMC3) has not yet been reported. For the first time, we studied the inhibitory effect of biogenic AgNPs on inflammation and oxidative stress induced by LPS in HMC3 cells. X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and transmission electron microscopy were used to characterize AgNPs produced from honeyberry. Co-treatment with AgNPs significantly reduced mRNA expressions of inflammatory molecules such as interleukin (IL)-6 and tumor necrosis factor-α, while increasing the expressions of anti-inflammatory markers such as IL-10 and transforming growth factor (TGF)-β. HMC3 cells were also switched from M1 to M2, as shown by lower expression of M1 markers such as cluster of differentiation (CD)80, CD86, and CD68 and higher expression of M2 markers such as CD206, CD163, and triggering receptors expressed on myeloid cells (TREM2). Furthermore, AgNPs inhibited LPS-induced toll-like receptor (TLR)4 signaling, as evidenced by decreased expression of myeloid differentiation factor 88 (MyD88) and TLR4. In addition, AgNPs reduced the production of reactive oxygen species (ROS) and enhanced the expression of nuclear factor-E2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1), while decreasing the expression of inducible nitric oxide synthase. The docking score of the honeyberry phytoconstituents ranged from -14.93 to - 4.28 KJ/mol. In conclusion, biogenic AgNPs protect against neuroinflammation and oxidative stress by targeting TLR4/MyD88 and Nrf2/HO-1 signaling pathways in a LPS-induced in vitro model. Biogenic AgNPs could be utilized as potential nanomedicine against LPS-induced inflammatory disorders.
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Affiliation(s)
- Anshul Sharma
- College of BioNano Technology, Department of Food and Nutrition, Gachon University, Gyeonggi-do 13120, Republic of Korea
| | - Varun Jaiswal
- College of BioNano Technology, Department of Food and Nutrition, Gachon University, Gyeonggi-do 13120, Republic of Korea
| | - Miey Park
- College of BioNano Technology, Department of Food and Nutrition, Gachon University, Gyeonggi-do 13120, Republic of Korea; Institute for Aging and Clinical Nutrition Research, Gachon University, Gyeonggi-do 13120, Republic of Korea
| | - Hae-Jeung Lee
- College of BioNano Technology, Department of Food and Nutrition, Gachon University, Gyeonggi-do 13120, Republic of Korea; Institute for Aging and Clinical Nutrition Research, Gachon University, Gyeonggi-do 13120, Republic of Korea; Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea.
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13
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Lim HJ, Prajapati R, Seong SH, Jung HA, Choi JS. Antioxidant and Antineuroinflammatory Mechanisms of Kaempferol-3- O-β-d-Glucuronate on Lipopolysaccharide-Stimulated BV2 Microglial Cells through the Nrf2/HO-1 Signaling Cascade and MAPK/NF-κB Pathway. ACS OMEGA 2023; 8:6538-6549. [PMID: 36844518 PMCID: PMC9948190 DOI: 10.1021/acsomega.2c06916] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Aglycone- and glycoside-derived forms of flavonoids exist broadly in plants and foods such as fruits, vegetables, and peanuts. However, most studies focus on the bioavailability of flavonoid aglycone rather than its glycosylated form. Kaempferol-3-O-β-d-glucuronate (K3G) is a natural flavonoid glycoside obtained from various plants that have several biological activities, including antioxidant and anti-inflammatory effects. However, the molecular mechanism related to the antioxidant and antineuroinflammatory activity of K3G has not yet been demonstrated. The present study was designed to demonstrate the antioxidant and antineuroinflammatory effect of K3G against lipopolysaccharide (LPS)-stimulated BV2 microglial cells and to evaluate the underlying mechanism. Cell viability was determined by MTT assay. The inhibition rate of reactive oxygen species (ROS) and the production of pro-inflammatory mediators and cytokines were measured by DCF-DA assay, Griess assay, enzyme-linked immunosorbent assay (ELISA), and western blotting. K3G inhibited the LPS-induced release of nitric oxide, interleukin (IL)-6, and tumor necrosis factor-α (TNF-α) as well as the expression of prostaglandin E synthase 2. Additionally, K3G reduced the expression of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and nuclear factor-kappa B (NF-κB) related proteins. Mechanistic studies found that K3G downregulated phosphorylated mitogen-activated protein kinases (MAPKs) and upregulated the Nrf2/HO-1 signaling cascade. In this study, we demonstrated the effects of K3G on antineuroinflammation by inactivating phosphorylation of MPAKs and on antioxidants by upregulating the Nrf2/HO-1 signaling pathway through decreasing ROS in LPS-stimulated BV2 cells.
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Affiliation(s)
- Hyun Jung Lim
- Institute
of Fisheries Sciences, Pukyong National
University, Busan 46041, Republic of Korea
| | - Ritu Prajapati
- Department
of Food and Life Science, Pukyong National
University, Busan 48513, Republic of Korea
| | - Su Hui Seong
- Division
of Natural Products Research, Honam National
Institute of Biological Resource, Mokpo 58762, Republic
of Korea
| | - Hyun Ah Jung
- Department
of Food Science and Human Nutrition, Jeonbuk
National University, Jeonju 54896, Republic of Korea
| | - Jae Sue Choi
- Institute
of Fisheries Sciences, Pukyong National
University, Busan 46041, Republic of Korea
- Department
of Food and Life Science, Pukyong National
University, Busan 48513, Republic of Korea
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Liu Y, Chang D, Liu T, Zhou X. Natural product-based bioactive agents in combination attenuate neuroinflammation in a tri-culture model. Front Pharmacol 2023; 14:1135934. [PMID: 36873986 PMCID: PMC9979791 DOI: 10.3389/fphar.2023.1135934] [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: 01/02/2023] [Accepted: 01/31/2023] [Indexed: 02/17/2023] Open
Abstract
Introduction: Neuroinflammation is an important pathological event contributing to the onset and progression of neurodegenerative diseases. The hyperactivation of microglia triggers the release of excessive proinflammatory mediators that lead to the leaky blood-brain barrier and impaired neuronal survival. Andrographolide (AN), baicalein (BA) and 6-shogaol (6-SG) possess anti-neuroinflammatory properties through diverse mechanisms of action. The present study aims to investigate the effects of the pair-combinations of these bioactive compounds in attenuating neuroinflammation. Methods: A tri-culture model with microglial N11 cells, microvascular endothelial MVEC(B3) cells, and neuroblastoma N2A cells was established in a transwell system. AN, BA and 6-SG used alone (25 µM) or in pair-wised combinations (12.5 + 12.5 µM) were subjected to the tri-culture system. Upon the stimulation of lipopolysaccharides (LPS) at 1 μg/mL, tumor necrosis factor-alpha (TNF-α) and interleukin 6 (IL-6) levels were determined by ELISA assays. Immunofluorescence staining was applied to investigate the nuclear translocation of nuclear factor kappa B p65 (NF-κB p65) on N11 cells, expressions of protein zonula occludens-1 (ZO-1) on MVEC cells and phosphorylated tau (p-tau) on N2A cells, respectively. The endothelial barrier permeability of MVEC cells was assessed by the Evans blue dye, and the resistance from the endothelial barrier was measured by transepithelial/endothelial electrical resistance (TEER) value. Neuronal survival of N2A cells was determined by Alamar blue and MTT assays. Results: Combinations of AN-SG and BA-SG synergistically lowered the TNF and IL-6 levels in LPS-induced N11 cells. Remarkably, the combined anti-neuroinflammatory effects of AN-SG and BA-SG remained significantly greater compared to their individual components at the same concentration level. The molecular mechanism of the attenuated neuroinflammation was likely to be mediated by downregulation of NF-κB p65 translocation (p < 0.0001 vs. LPS stimulation) in N11 cells. In the MVEC cells, both AN-SG and BA-SG restored TEER values, ZO-1 expression and reduced permeability. Furthermore, AN-SG and BA-SG significantly improved neuronal survival and reduced expressions of p-tau on N2A cells. Discussion: The AN-SG and BA-SG combinations showed greater anti-neuroinflammatory potential than those used alone in mono- and tri-cultured N11 cells, thereby further protecting endothelial tight junction and neuronal survival. Taken together, AN-SG and BA-SG may provide improved anti-neuroinflammatory and neuroprotective activities.
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Affiliation(s)
- Yang Liu
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
| | - Dennis Chang
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
| | - Tianqing Liu
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia.,School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Xian Zhou
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
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15
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Kapoor T, Mehan S, Suri M, Sharma N, Kumar N, Narula AS, Alshammari A, Alasmari AF, Alharbi M, Assiri MA, Kalfin R. Forskolin, an Adenylcyclase/cAMP/CREB Signaling Activator Restoring Myelin-Associated Oligodendrocyte Destruction in Experimental Ethidium Bromide Model of Multiple Sclerosis. Cells 2022; 11:cells11182771. [PMID: 36139346 PMCID: PMC9497421 DOI: 10.3390/cells11182771] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/28/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic neurodegenerative disease marked by oligodendrocyte loss, which results in central neuronal demyelination. AC/cAMP/CREB signaling dysregulation is involved in the progression of MS, including mitochondrial dysfunctions, reduction in nerve growth factors, neuronal inflammation, apoptosis, and white matter degeneration. Our previous research has shown that Forskolin (FSK), a naturally occurring direct adenylyl cyclase (AC)/cAMP/CREB activator, has neuroprotective potential to alleviate pathogenic factors linked with numerous neurological abnormalities. The current study intends to explore the neuroprotective potential of FSK at doses of 40 mg/kg and 60 mg/kg alone, as well as in combination with conventional medicines, such as Fingolimod (FNG), Donepezil (DON), Memantine (MEM), and Simvastatin (SIM) in EB-induced demyelinated experimental MS rats. Adult Wistar rats were divided into nine groups, and EB was infused stereotaxically in the rat brain’s intracerebropeduncle (ICP) area. Chronic gliotoxin EB treatment results in demyelination as well as motor and cognitive dysfunctions. FSK, combined with standard medications, improves behavioral dysfunctions, such as neuromuscular and motor deficits and memory and cognitive abnormalities. Following pharmacological treatments improved remyelination by enhancing myelin basic protein and increasing AC, cAMP, and CREB levels in brain homogenates. Furthermore, FSK therapy restored brain mitochondrial-ETC complex enzymes and neurotransmitter levels while decreasing inflammatory cytokines and oxidative stress markers. The Luxol fast blue (LFB) stain results further indicate FSK’s neuroprotective potential in preventing oligodendrocyte death. Therefore, the results of these studies contribute to a better understanding of the possible role that natural phytochemicals FSK could have in preventing motor neuron diseases, such as multiple sclerosis.
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Affiliation(s)
- Tarun Kapoor
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy (An Autonomous College), Moga 142001, Punjab, India
| | - Sidharth Mehan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy (An Autonomous College), Moga 142001, Punjab, India
- Correspondence: or ; Tel.: +1-91-8059889909
| | - Manisha Suri
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy (An Autonomous College), Moga 142001, Punjab, India
| | - Nidhi Sharma
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy (An Autonomous College), Moga 142001, Punjab, India
| | - Nitish Kumar
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy (An Autonomous College), Moga 142001, Punjab, India
| | | | - Abdulrahman Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdullah F. Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mohammed A. Assiri
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Reni Kalfin
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Block 23, 1113 Sofia, Bulgaria
- Department of Healthcare, South-West University “NeofitRilski”, Ivan Mihailov St. 66, 2700 Blagoevgrad, Bulgaria
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16
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Soni D, Kumar P. GSK-3β-mediated regulation of Nrf2/HO-1 signaling as a new therapeutic approach in the treatment of movement disorders. Pharmacol Rep 2022; 74:557-569. [PMID: 35882765 DOI: 10.1007/s43440-022-00390-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 11/30/2022]
Abstract
Movement disorders are neurological conditions characterized by involuntary motor movements, such as dystonia, ataxia, chorea myoclonus, tremors, Huntington's disease (HD), and Parkinson's disease (PD). It is classified into two categories: hypokinetic and hyperkinetic movements. Globally, movement disorders are a major cause of death. The pathophysiological process is initiated by excessive ROS generation, mitochondrial dysfunction, neuroinflammation, and neurotransmitters imbalance that lead to motor dysfunction in PD and HD patients. Several endogenous targets including Nrf2 maintain oxidative balance in the body. Activation of Nrf2 signaling is regulated by the enzyme glycogen synthase kinase (GSK-3β). In the cytoplasm, inhibition of GSK-3β regulates cellular proliferation, homeostasis, and apoptotic process by stimulating the nuclear factor erythroid 2 (Nrf2) pathway which is involved in the elevation of the cellular antioxidant enzymes which controls the ROS generation. The activation of Nrf2 increases the expression of antioxidant response elements (ARE), such as (Hemeoxygenase-1) HO-1, which decreases excessive cellular stress, mitochondrial dysfunction, apoptosis, and neuronal degeneration, which is the major cause of motor dysfunction. The present review explores the GSK-3β-mediated neuroprotection in various movement disorders through the Nrf2/HO-1 antioxidant pathway. This review provides a link between GSK-3β and the Nrf2/HO-1 signaling pathway in the treatment of PD and HD. In addition to that it highlights various GSK-3β inhibitors and the Nrf2/HO-1 activators, which exert robust neuroprotection against motor disorders. Therefore, the present review will help in the discovery of new therapy for PD and HD patients.
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Affiliation(s)
- Divya Soni
- Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, India
| | - Puneet Kumar
- Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, India.
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17
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Upadhayay S, Mehan S, Prajapati A, Sethi P, Suri M, Zawawi A, Almashjary MN, Tabrez S. Nrf2/HO-1 Signaling Stimulation through Acetyl-11-Keto-Beta-Boswellic Acid (AKBA) Provides Neuroprotection in Ethidium Bromide-Induced Experimental Model of Multiple Sclerosis. Genes (Basel) 2022; 13:genes13081324. [PMID: 35893061 PMCID: PMC9331916 DOI: 10.3390/genes13081324] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 12/16/2022] Open
Abstract
Multiple sclerosis (MS) is a severe immune-mediated neurological disease characterized by neuroinflammation, demyelination, and axonal degeneration in the central nervous system (CNS). This is frequently linked to motor abnormalities and cognitive impairments. The pathophysiological hallmarks of MS include inflammatory demyelination, axonal injury, white matter degeneration, and the development of CNS lesions that result in severe neuronal degeneration. Several studies suggested downregulation of nuclear factor erythroid-2-related factor-2 (Nrf2)/Heme oxygenase-1 (HO-1) signaling is a causative factor for MS pathogenesis. Acetyl-11-keto-β-boswellic acid (AKBA) is an active pentacyclictriterpenoid obtained from Boswellia serrata, possessing antioxidant and anti-inflammatory properties. The present study explores the protective potential of AKBA on behavioral, molecular, neurochemical, and gross pathological abnormalitiesandhistopathological alterations by H&E and LFB staining techniques in an experimental model of multiple sclerosis, emphasizing the increase inNrf2/HO-1 levels in the brain. Moreover, we also examine the effect of AKBA on the intensity of myelin basic protein (MBP) in CSF and rat brain homogenate. Specific apoptotic markers (Bcl-2, Bax, andcaspase-3) were also estimated in rat brain homogenate. Neuro behavioralabnormalities in rats were examined using an actophotometer, rotarod test, beam crossing task (BCT),and Morris water maze (MWM). AKBA 50 mg/kg and 100 mg/kg were given orally from day 8 to 35 to alleviate MS symptoms in the EB-injected rats. Furthermore, cellular, molecular, neurotransmitter, neuroinflammatory cytokine, and oxidative stress markers in rat whole brain homogenate, blood plasma, and cerebral spinal fluid were investigated. This study shows that AKBA upregulates the level of antioxidant proteins such as Nrf2 and HO-1 in the rat brain. AKBA restores altered neurochemical levels, potentially preventing gross pathological abnormalities during MS progression.
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Affiliation(s)
- Shubham Upadhayay
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga 142001, Punjab, India; (S.U.); (A.P.); (P.S.); (M.S.)
| | - Sidharth Mehan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga 142001, Punjab, India; (S.U.); (A.P.); (P.S.); (M.S.)
- Correspondence: (S.M.); (S.T.)
| | - Aradhana Prajapati
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga 142001, Punjab, India; (S.U.); (A.P.); (P.S.); (M.S.)
| | - Pranshul Sethi
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga 142001, Punjab, India; (S.U.); (A.P.); (P.S.); (M.S.)
| | - Manisha Suri
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga 142001, Punjab, India; (S.U.); (A.P.); (P.S.); (M.S.)
| | - Ayat Zawawi
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.Z.); (M.N.A.)
- Vaccines and Immunotherapy Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Majed N. Almashjary
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.Z.); (M.N.A.)
- Hematology Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Animal House Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Shams Tabrez
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.Z.); (M.N.A.)
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (S.M.); (S.T.)
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18
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Ezzat MI, Issa MY, Sallam IE, Zaafar D, Khalil HMA, Mousa MR, Sabry D, Gawish AY, Elghandour AH, Mohsen E. Impact of different processing methods on the phenolics and neuroprotective activity of Fragaria ananassa Duch. extracts in a D-galactose and aluminum chloride-induced rat model of aging. Food Funct 2022; 13:7794-7812. [PMID: 35766389 DOI: 10.1039/d2fo00645f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023]
Abstract
Age-related diseases, including dementia, are a major health concern affecting daily human life. Strawberry (Fragaria ananassa Duch.) is the most eaten fruit worldwide due to its exceptional aroma and flavor. However, it's rapid softening and decay limit its shelf-life. Freezing and boiling represent the well-known conservation methods to extend its shelf-life. Therefore, we aimed to discover the phytochemical content differences of fresh and processed strawberries associated with investigating and comparing their neuroprotective effects in a rat model of aging. Female Wistar rats were orally pretreated with fresh, boiled, and frozen F. ananassa methanolic extracts (250 mg kg-1) for 2 weeks, and then these extracts were concomitantly exposed to D-galactose [65 mg kg-1, subcutaneously (S/C)] and AlCl3 (200 mg kg-1, orally) for 6 weeks to develop aging-like symptoms. The results of UPLC/ESI-MS phytochemical profiling revealed 36 secondary metabolites, including phenolics, flavonoids, and their glycoside derivatives. Compared with boiled and frozen extracts, the fresh extract ameliorated the behavioral deficits including anxiety and cognitive dysfunction, upregulated brain HO-1 and Nrf2 levels, and markedly reduced caspase-3 and PPAR-γ levels. Moreover, LDH and miRNA-9, 124 and 132 protein expressions were reduced. The histological architecture of the brain hippocampus was restored and glial fibrillary acidic protein (GFAP) immunoexpression was downregulated. In conclusion, the fresh extract has neuroprotective activity that could have a promising role in ameliorating age-related neurodegeneration.
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Affiliation(s)
- Marwa I Ezzat
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
| | - Marwa Y Issa
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
| | - Ibrahim E Sallam
- Pharmacognosy Department, College of Pharmacy, October University for Modern Sciences and Arts (MSA), 6th of October City, 12566, Egypt
| | - Dalia Zaafar
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information, el-Mokattam, Cairo, 11581, Egypt
| | - Heba M A Khalil
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Mohamed R Mousa
- Pathology Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, 11562, Egypt
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Badr University, 11829, Egypt
| | - Aya Y Gawish
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information, el-Mokattam, Cairo, 11581, Egypt
| | - Ahmed H Elghandour
- Communication Department, Military Technical College, Cairo, 11766, Egypt
| | - Engy Mohsen
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
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19
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Acetyl-11-keto-β-boswellic acid improves clinical symptoms through modulation of Nrf2 and NF-κB pathways in SJL/J mouse model of experimental autoimmune encephalomyelitis. Int Immunopharmacol 2022; 107:108703. [DOI: 10.1016/j.intimp.2022.108703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 12/30/2022]
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20
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Liu X, Liu J, Liu C, Zhang X, Zhao Z, Xu J, Zhang X, Zhou K, Gao P, Li D. Selenium-containing polysaccharides isolated from Rosa laevigata Michx fruits exhibit excellent anti-oxidant and neuroprotective activity in vitro. Int J Biol Macromol 2022; 209:1222-1233. [PMID: 35472363 DOI: 10.1016/j.ijbiomac.2022.04.146] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 11/05/2022]
Abstract
Selenium-containing polysaccharides have potential as an organic selenium dietary supplement, owing to their low toxicity, few side effects, and easy absorption attributes. In this study, we isolated two novel homogeneous selenium-containing polysaccharides from Rosa laevigata Michx fruits (Se-RLFPs). Results from primary structural analysis revealed that Se-RLFPs were α - pyranose, and were both composed of rhamnose, xylose, glucose with an average molecular weight of 24 and 16 KDa, respectively. Selenium contents in Se-RLFP-I and Se-RLFP-II were 16.49 μg/g and 21.61 μg/g, respectively. Results from analysis of antioxidant and neuroprotective activity of the polysaccharides revealed that Se-RLFPs had a radical scavenging effect. Specifically, they effectively protected SH-SY5Y cells from H2O2-induced damage by enhancing antioxidant enzyme activities (SOD), total antioxidant capacity (T-AOC) and suppressing malondialdehyde (MDA) levels. Western blots showed that the underlying mechanisms of action may be related to the Nrf2/HO-1 signaling pathway. Taken together, these results suggested that Se-RLFPs have potential as a pharmaceutical agent for treatment of neurodegenerative diseases (NDDs) or as a selenium-complementary ingredient in functional foods.
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Affiliation(s)
- Xuegui Liu
- Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China; National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Juan Liu
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China
| | - Changfeng Liu
- College of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Xue Zhang
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China
| | - Ziwei Zhao
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China
| | - Jianing Xu
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China
| | - Xingyue Zhang
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China
| | - Ke Zhou
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China
| | - Pingyi Gao
- Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China; College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China.
| | - Danqi Li
- Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, PR China; Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Shenyang University of Chemical Technology, Shenyang 110142, PR China.
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21
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Sabnis RW. Novel Cyclic Cyanoenone Derivatives as KEAP1Modulators for Treating Neurodegenerative Diseases. ACS Med Chem Lett 2022; 13:777-778. [PMID: 35586432 PMCID: PMC9109512 DOI: 10.1021/acsmedchemlett.2c00156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ram W. Sabnis
- Smith, Gambrell & Russell LLP, 1105 West Peachtree Street NE, Suite 1000, Atlanta, Georgia 30309, United States
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22
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Kumar N, Singh A, Gulati HK, Bhagat K, Kaur K, Kaur J, Dudhal S, Duggal A, Gulati P, Singh H, Singh JV, Bedi PMS. Phytoconstituents from ten natural herbs as potent inhibitors of main protease enzyme of SARS-COV-2: In silico study. PHYTOMEDICINE PLUS : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021. [PMID: 35403086 DOI: 10.1016/j.phyplu.2021.100139] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
BACKGROUND Lack of treatment of novel Coronavirus disease led to the search of specific antivirals that are capable to inhibit the replication of the virus. The plant kingdom has demonstrated to be an important source of new molecules with antiviral potential. PURPOSE The present study aims to utilize various computational tools to identify the most eligible drug candidate that have capabilities to halt the replication of SARS-COV-2 virus by inhibiting Main protease (Mpro) enzyme. METHODS We have selected plants whose extracts have inhibitory potential against previously discovered coronaviruses. Their phytoconstituents were surveyed and a library of 100 molecules was prepared. Then, computational tools such as molecular docking, ADMET and molecular dynamic simulations were utilized to screen the compounds and evaluate them against Mpro enzyme. RESULTS All the phytoconstituents showed good binding affinities towards Mpro enzyme. Among them laurolitsine possesses the highest binding affinity i.e. -294.1533 kcal/mol. On ADMET analysis of best three ligands were simulated for 1.2 ns, then the stable ligand among them was further simulated for 20 ns. Results revealed that no conformational changes were observed in the laurolitsine w.r.t. protein residues and low RMSD value suggested that the Laurolitsine-protein complex was stable for 20 ns. CONCLUSION Laurolitsine, an active constituent of roots of Lindera aggregata, was found to be having good ADMET profile and have capabilities to halt the activity of the enzyme. Therefore, this makes laurolitsine a good drug candidate for the treatment of COVID-19.
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Key Words
- ACE-2, Angiotensin converting enzyme- 2
- ADMET
- ADMET, absorption, Distribution, metabolism, excretion and toxicity
- Ala, Alanine
- Approx., approximately
- Arg, arginine
- Asn, Asparagine
- Asp, Aspartic acid
- CADD, Computer Aided Drug Design
- CHARMM, Chemistry at Harvard Macromolecular Mechanics
- COV, coronavirus
- COVID, Novel corona-virus disease
- Covid-19
- Cys, cysteine
- DSBDS, Dassault's Systems Biovia's Discovery studio
- Gln, Glutamine
- Glu, glutamate
- Gly, Glycine
- His, histidine
- Ile, isoleucine
- K, Kelvin
- Kcal/mol, kilo calories per mol
- Leu, Leucine
- Leu, leucine
- Lys, Lysine
- MD, Molecular Dynamics
- Met, Methionine
- MoISA, Molecular Surface Area
- Molecular dynamic simulations
- Mpro protein
- Mpro, Main protease enzyme
- N protein, nucleocapsid protein
- NI, N-(4-methylpyridin-3-yl) acetamide inhibitor
- NPT, amount of substance (N), pressure (P) and temperature (T)
- NVT, amount of substance (N), volume (V) and temperature (T)
- Natural Antiviral herbs
- PDB, protein data bank
- PPB, plasma protein binding
- PSA, Polar Surface Area
- Phi, Phenylalanine
- Pro, Proline
- RCSB, Research Collaboratory for Structural Bioinformatics
- RMS, Root Mean Square
- RMSD, Root Mean Square Deviation
- RMSF, root mean square fluctuations
- RNA, Ribonucleic acid
- SAR-COV-2, severe acute respiratory syndrome coronavirus 2
- SDF, structure data format
- Ser, serine
- T, Temperature
- Thr, Threonine
- Trp, Tryptophan
- Tyr, Tyrosine
- Val, Valine
- kDa, kilo Dalton
- nCOV-19, Novel Coronavirus 2019
- ns/nsec, nano seconds
- ps, pentoseconds
- rGyr, Radius of gyration
- w.r.t., with respect to
- Å, angstrom
- α, alpha
- β, beta
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Affiliation(s)
- Nitish Kumar
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
- Drug and Pollution testing Lab, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Atamjit Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Harmandeep Kaur Gulati
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Kavita Bhagat
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Komalpreet Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Jaspreet Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Shilpa Dudhal
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Amit Duggal
- Drugs Control Wing, Sector 16, Chandigarh, India, 160015
| | - Puja Gulati
- School of Pharmacy, Desh Bhagat University, Mandi Gobindgarh, Punjab, India, 147301
| | - Harbinder Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
| | - Jatinder Vir Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, India, 143005
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