1
|
Ning S, Chen Y, Shao J, Zhu H, Zhang Z, Miao J. The effects of acteoside on locomotor recovery after spinal cord injury - The role of autophagy and apoptosis signaling pathway. Biomed Pharmacother 2024; 175:116607. [PMID: 38692056 DOI: 10.1016/j.biopha.2024.116607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 05/03/2024] Open
Abstract
In the current study, we investigated the effects of acteoside as a phenylpropanoid glycoside on interaction with neurons to assesses locomotor recovery after spinal cord injury (SCI) in rats by focusing on evaluating the factors involved in autophagy, apoptosis, inflammation and oxidative stress processes. 49 Spargue-Dawley rats were prepared and divided into seven healthy and SCI groups receiving different concentrations of acteoside. After 28 days of disease induction and treatment with acteoside, a BBB score test was used to evaluate locomotor activity. Then, by preparing spinal cord cell homogenates, the expression levels of MAP1LC3A, MAP-2, glial fibrillary acidic protein (GFAP), Nrf2, Keap-1, Caspase 3 (Casp3), Bax, Bcl-2, TNF-a, IL-1B, reactive oxygen species (ROS), and malondialdehyde (MDA) were measured. Improvement of locomotor activity in SCI rats receiving acteoside was observed two weeks after the beginning of the experiment and continued until the fourth week. Both MAP1LC3A and MAP-2 were significantly up-regulated in SCI rats treated with acteoside compared to untreated SCI rats, and GFAP levels were significantly decreased in these animals. Pro-apoptotic proteins Bax and Casp3 and anti-apoptotic protein Bcl-2 were down-regulated and up-regulated, respectively, in SCI rats receiving acteoside. In addition, a significant downregulation of iNOS, TNF-α, and IL-1β and a decrease in contents of both ROS and MDA as well as increases in Nrf2 and Keap-1 were seen in rats receiving acteoside. Furthermore, acteoside strongly interacted with MAP1LC3A, TNF-α, and Casp3 targets with binding affinities of -8.3 kcal/mol, -8.3 kcal/mol, and -8.5 kcal/mol, respectively, determined by molecular docking studies. In general, it can be concluded that acteoside has protective effects in SCI and can be considered as an adjuvant therapy in the treatment of this disease. However, more studies, especially clinical studies, are needed in this field.
Collapse
Affiliation(s)
- Shanglong Ning
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Yang Chen
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Jia Shao
- Department of Spine Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Hui Zhu
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300000, China
| | - Zepei Zhang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Jun Miao
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.
| |
Collapse
|
2
|
Hao HJ, Li YH, Yu B, Liu X, Zhang Y, Xing XL. Neuroprotective effects of acteoside in a glaucoma mouse model by targeting Serta domain-containing protein 4. Int J Ophthalmol 2024; 17:625-637. [PMID: 38638260 PMCID: PMC10988069 DOI: 10.18240/ijo.2024.04.04] [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: 07/26/2023] [Accepted: 01/04/2024] [Indexed: 04/20/2024] Open
Abstract
AIM To explore the therapeutic effect and main molecular mechanisms of acteoside in a glaucoma model in DBA/2J mice. METHODS Proteomics was used to compare the differentially expressed proteins of C57 and DBA/2J mice. After acteoside administration in DBA/2J mice, anterior segment observation, intraocular pressure (IOP) monitoring, electrophysiology examination, and hematoxylin and eosin staining were used to analyze any potential effects. Immunohistochemistry (IHC) assays were used to verify the proteomics results. Furthermore, retinal ganglion cell 5 (RGC5) cell proliferation was assessed with cell counting kit-8 (CCK-8) assays. Serta domain-containing protein 4 (Sertad4) mRNA and protein expression levels were measured by qRT-PCR and Western blot analysis, respectively. RESULTS Proteomics analysis suggested that Sertad4 was the most significantly differentially expressed protein. Compared with the saline group, the acteoside treatment group showed decreased IOP, improved N1-P1 wave amplitudes, thicker retina, and larger numbers of cells in the ganglion cell layer (GCL). The IHC results showed that Sertad4 expression levels in DBA/2J mice treated with acteoside were significantly lower than in the saline group. Acteoside treatment could improve RGC5 cell survival and reduce the Sertad4 mRNA and protein expression levels after glutamate injury. CONCLUSION Sertad4 is differentially expressed in DBA/2J mice. Acteoside can protect RGCs from damage, possibly through the downregulation of Sertad4, and has a potential use in glaucoma treatment.
Collapse
Affiliation(s)
- Hui-Jie Hao
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Ya-Hong Li
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Bo Yu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Xun Liu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Yan Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Xiao-Li Xing
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| |
Collapse
|
3
|
Zhao Y, Wang S, Pan J, Ma K. Verbascoside: A neuroprotective phenylethanoid glycosides with anti-depressive properties. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 120:155027. [PMID: 37657207 DOI: 10.1016/j.phymed.2023.155027] [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: 03/20/2023] [Revised: 07/31/2023] [Accepted: 08/14/2023] [Indexed: 09/03/2023]
Abstract
BACKGROUND Verbascoside is a natural and water-soluble phenylethanoid glycoside found in several medicinal plants. It has extensive pharmacological effects, including antioxidative and antineoplastic actions, and a wide range of therapeutic effects against depression. PURPOSE In this review, we appraised preclinical and limited clinical evidence to fully discuss the anti-depression capacity of verbascoside and its holistic characteristics that can contribute to better management of depression in vivo and in vitro models, as well as, its toxicities and medicinal value. METHODS This review was prepared according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A systematic review of 32 preclinical trials published up to April 2023, combined with a comprehensive bioinformatics analysis of network pharmacology and molecular docking, was conducted to elucidate the antidepressant mechanism of action of verbascoside. Studies included in the systematic review were obtained from 7 electronic databases: PubMed, Scopus, Web of Science, Cochrane, ResearchGate, ScienceDirect, and Google Scholar. RESULTS Studies on the antidepressant effects of verbascoside showed that various pharmacological mechanisms and pathways, such as modulating the levels of monoamine neurotransmitters, inhibiting hypothalamic-pituitary-adrenal (HPA) axis hyperfunction and promoting neuroprotection may be involved in the process of its action against depression. Verbascoside promotes dopamine (DA) biosynthesis by promoting the expression of tyrosine hydroxylase mRNA and protein, upregulates the expression of 5-hydroxytryptamine receptor 1B (5-HT1B), prominence protein, microtubule-associated protein 2 (MAP2), hemeoxygenase-1 (HO-1), SQSTM1, Recombinant Autophagy Related Protein 5 (ATG5) and Beclin-1, and decreases the expression of caspase-3 and a-synuclein, thus exerting antidepressant effects. We identified seven targets (CCL2, FOS, GABARAPL1, CA9, TYR, CA12, and SQSTM1) and three signaling pathways (glutathione metabolism, metabolism of xenobiotics by cytochrome P450, fluid shear stress and atherosclerosis) as potential molecular biological sites for verbascoside. CONCLUSIONS These findings provide strong evidence that verbascoside exerts its antidepressant effects through various pharmacological mechanisms. However, further multicentre clinical case-control and molecularly targeted fishing studies are required to confirm the clinical efficacy of verbascoside and its underlying direct targets.
Collapse
Affiliation(s)
- Yi Zhao
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Sijia Wang
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jin Pan
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Ke Ma
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| |
Collapse
|
4
|
Vásquez-Londoño CA, Howes MJR, Costa GM, Arboleda G, Rojas-Cardozo MA. Scutellaria incarnata Vent. root extract and isolated phenylethanoid glycosides are neuroprotective against C 2-ceramide toxicity. JOURNAL OF ETHNOPHARMACOLOGY 2023; 307:116218. [PMID: 36738946 DOI: 10.1016/j.jep.2023.116218] [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: 11/05/2022] [Revised: 01/13/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Neuronal death is a central process in neurodegenerative diseases and represents a therapeutic challenge for their prevention and treatment. Scutellaria incarnata Vent. roots are used traditionally in Colombia for central nervous system conditions including those affecting cognitive functions, but their chemistry and neuroprotective action remain to be explored to understand the scientific basis for their medicinal uses. In this study, S. incarnata roots are investigated to assess whether they have neuroprotective effects that could provide some explanation for their traditional use in neurodegenerative diseases. AIM OF THE STUDY To evaluate the neuroprotective effect of S. incarnata roots and its chemical constituents against C2-ceramide-induced cell death in Cath.-a-differentiated (CAD) cells. MATERIALS AND METHODS S. incarnata root ethanol extract was fractionated and compounds were isolated by column chromatography; their structures were elucidated by nuclear magnetic resonance spectroscopy, mass spectrometry and infrared spectroscopy. The cytotoxic and neuroprotective effects against C2-ceramide of S. incarnata root extract, fractions and isolated compounds were assessed in CAD cells. RESULTS S. incarnata root extract and its n-butanol fraction were not cytotoxic but showed neuroprotective effects against C2-ceramide toxicity in CAD cells. The phenylethanoid glycosides incarnatoside (isolated for the first time) and stachysoside C (12.5, 25 and 50 μg/mL) from S. incarnata roots also protected CAD cells against C2-ceramide without inducing cytotoxic effects. CONCLUSION The observed neuroprotective effects of S. incarnata root extract and isolated phenylethanoid glycosides in CAD cells provide an ethnopharmacological basis for the traditional use of this species in Colombia for central nervous system disorders.
Collapse
Affiliation(s)
- Carlos A Vásquez-Londoño
- Universidad Nacional de Colombia-Sede Bogotá, Faculty of Sciences, Department of Pharmacy, GIFFUN, Bogotá, 111321, Colombia.
| | | | - Geison M Costa
- Pontificia Universidad Javeriana, Faculty of Sciences, Department of Pharmacy, Bogotá, 110231, Colombia
| | - Gonzalo Arboleda
- Universidad Nacional de Colombia-Sede Bogotá, Faculty of Medicine, Department of Pathology - Genetic Institute, Bogotá, 111231, Colombia
| | - Maritza A Rojas-Cardozo
- Universidad Nacional de Colombia-Sede Bogotá, Faculty of Sciences, Department of Pharmacy, GIFFUN, Bogotá, 111321, Colombia.
| |
Collapse
|
5
|
Wang Y, Wu S, Li Q, Lang W, Li W, Jiang X, Wan Z, Sun H, Wang H. Salsolinol Induces Parkinson's Disease Through Activating NLRP3-Dependent Pyroptosis and the Neuroprotective Effect of Acteoside. Neurotox Res 2022; 40:1948-1962. [PMID: 36454451 DOI: 10.1007/s12640-022-00608-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/15/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022]
Abstract
Endogenous neurotoxin 1-methyl-6,7-dihydroxy-1,2,3,4-tetrahydroiso-quinoline (Salsolinol, SAL) is a dopamine metabolite that is toxic to dopaminergic neurons in vitro and in vivo, and is involved in the pathogenesis of Parkinson's disease (PD). However, the molecular mechanism by which SAL induces neurotoxicity in PD remains challenging for future investigations. This study found that SAL induced neurotoxicity in SH-SY5Y cells and mice. RNA sequencing (RNAseq) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were used to detect differentially expressed genes in SAL-treated SH-SY5Y cells. We found that NLR family pyrin domain-containing 3 (NLRP3)-dependent pyroptosis was enriched by SAL, which was validated by in vitro and in vivo SAL models. Further, NLRP3 inflammasome-related genes (ASC, NLRP3, active caspase 1, IL-1β, and IL-18) were increased at the mRNA and protein level. Acteoside mitigates SAL-induced neurotoxicity by inhibiting NLRP3 inflammasome-related pyroptosis in in vitro and in vivo PD models. In summary, the present study suggests for the first time that NLRP3-dependent pyroptosis plays a role in the pathogenesis of SAL-induced PD, and acteoside mitigates SAL-induced pyroptosis-dependent neurotoxicity in in vitro and in vivo PD models. The present results demonstrated a new mechanism whereby SAL mediates neurotoxicity by activating NLRP3-dependent pyroptosis, further highlighting SAL-induced pyroptosis-dependent neurotoxicity as a potential therapeutic target in PD.
Collapse
Affiliation(s)
- Yumin Wang
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, 100049, China
| | - Shuang Wu
- Department of Neurology, Zhongnan Hospital of Wuhan University, Wuhan, 430000, China
| | - Qiang Li
- Department of Neurology, The Affiliated Hospital of Chifeng University, Chifeng, 024005, China
| | - Weihong Lang
- Department of Psychological Medicine, The Affiliated Hospital of Chifeng University, Chifeng, 024005, People's Republic of China
| | - Wenjing Li
- Department of Neurology, The Affiliated Hospital of Chifeng University, Chifeng, 024005, China
| | - Xiaodong Jiang
- Department of Anatomy, College of Basic Medicine, Chifeng University Health Science Center, Chifeng, 024005, China
| | - Zhirong Wan
- Department of Neurology, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, 100049, China
| | - Huiyan Sun
- Chifeng University Health Science Center, Chifeng, 024000, China.
| | - Hongquan Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for CancerTianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China.
| |
Collapse
|
6
|
Srivastava M, Shanker K. Duranta erecta Linn: A critical review on phytochemistry, traditional uses, pharmacology, and toxicity from phytopharmaceutical perspective. JOURNAL OF ETHNOPHARMACOLOGY 2022; 293:115274. [PMID: 35405253 DOI: 10.1016/j.jep.2022.115274] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 03/30/2022] [Accepted: 04/05/2022] [Indexed: 05/24/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Duranta erecta Linn. belonging to the Verbenaceae family is widely used in the traditional systems of medicines practiced in Bangladesh, India, Nigeria, the Philippines, and Brazil. The ethnomedicinal application as vermifuge, febrifuge, diuretic, anti-parasitic, and anti-malarial are well documented. D. erecta is also a significant source of phenylethanoid glycoside known as acteoside-a drug in clinical trials for IgA nephropathy patients. AIM OF THIS REVIEW This review aims to critically highlight the existing studies on D. erecta, including its botanical authentication, geographical distribution, ethnomedicinal uses, phytochemistry, and pharmacological properties. Critical discussion is focused on the overview and gap in knowledge for future research. Additionally, the clinical significance of its major secondary metabolite, i.e., acteoside, has also been discussed with emphasis on biosynthesis, distribution, pre-clinical, and clinical outcomes. MATERIALS AND METHODS Professional research data from 1963 to 2021 appeared in scholarly journals, and books were retrieved from scientific database platforms viz. Sci-Finder, PubMed, CNKI, Science Direct, Web of Science, Wiley, Google Scholar, Taylor and Francis, Springer, and Scopus. The chemical structures for all the phytomolecules were validated using Sci-finder and first-hand references. While plant name and synonyms were corroborated by "The Plant List" (www.theplantlist.org). RESULTS D. erecta and its key metabolite acteoside display various biological actions like antimalarial, antimicrobial, antioxidant, anticancer, antinephritic, hepatoprotective, neuroprotective, and antiviral properties. Acteoside literature analysis shows its presence in different stages of clinical trials for anti-nephritic, hepatoprotective, and osteoarthritic activity. The phytochemical review of D. erecta exhibited 64 compounds that have been isolated and identified from D. erecta, such as iridoid glycosides, phenylethanoid glycosides, flavonoids, steroids, phenolics, terpenoids, and saponins. The other significant secondary metabolites responsible for its medicinal properties are acteoside, durantol, pectolinaringenin, repenins, scutellarein, and repennoside. CONCLUSION Duranta erecta is one of the Verbenaceae plants, widely used in ethnomedicines having various phytochemicals with understandable pharmacological actions mainly confined at the crude extract level. However, further bioactivity-guided or fingerprint-assisted studies are required to validate the ethnomedicinal uses, concerning cellular and molecular mechanisms, quality standardization, and safety with respect to its bioactive constituent(s). Therefore, the present review identified the gap in the research on scientific validation of Duranta based ethnomedicines and may provide critical information for the development of phytopharmaceuticals/Phyto-cosmeceuticals.
Collapse
Affiliation(s)
- Madhumita Srivastava
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Karuna Shanker
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| |
Collapse
|
7
|
Xiao Y, Ren Q, Wu L. The pharmacokinetic property and pharmacological activity of acteoside: A review. Biomed Pharmacother 2022; 153:113296. [PMID: 35724511 PMCID: PMC9212779 DOI: 10.1016/j.biopha.2022.113296] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/06/2022] [Accepted: 06/13/2022] [Indexed: 11/09/2022] Open
Abstract
Acteoside (AC), a phenylpropanoid glycoside isolated from many dicotyledonous plants, has been demonstrated various pharmacological activities, including anti-oxidation, anti-inflammation, anti-cancer, neuroprotection, cardiovascular protection, anti-diabetes, bone and cartilage protection, hepatoprotection, and anti-microorganism. However, AC has a poor bioavailability, which can be potentially improved by different strategies. The health-promoting characteristics of AC can be attributed to its mediation in many signaling pathways, such as MAPK, NF-κB, PI3K/AKT, TGFβ/Smad, and AMPK/mTOR. Interestingly, docking simulation study indicates that AC can be an effective candidate to inhibit the activity of SARS-CoV2 main protease and protect against COVID-19. Many clinical trials for AC have been investigated, and it shows great potentials in drug development.
Collapse
Affiliation(s)
- Yaosheng Xiao
- Department of Orthopaetics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Qun Ren
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Longhuo Wu
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China.
| |
Collapse
|
8
|
Yang D, Li J, Liang C, Tian L, Shi C, Hui N, Liu Y, Ling M, Xin L, Wan M, Li H, Zhao Q, Ren X, Liu H, Cao W. Syringa microphylla Diels: A comprehensive review of its phytochemical, pharmacological, pharmacokinetic, and toxicological characteristics and an investigation into its potential health benefits. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 93:153770. [PMID: 34678528 DOI: 10.1016/j.phymed.2021.153770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/31/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Syringa microphylla Diels is a plant in the family Syringa Linn. For hundreds of years, its flowers and leaves have been used as a folk medicine for the treatment of cough, inflammation, colds, sore throat, acute hepatitis, chronic hepatitis, early liver cirrhosis, fatty liver, and oesophageal cancer. PURPOSE For the first time, we have comprehensively reviewed information on Syringa microphylla Diels that is not included in the Pharmacopoeia, clarified the pharmacological mechanisms of Syringa microphylla Diels and its active ingredients from a molecular biology perspective, compiled in vivo and in vitro animal experimental data and clinical data, and summarized the toxicology and pharmacokinetics of Syringa microphylla Diels. The progress in toxicology research is expected to provide a theoretical basis for the development of new drugs from Syringa microphylla Diels, a natural source of compounds that are potentially beneficial to human health. METHODS The PubMed, Google Scholar, China National Knowledge Infrastructure, Web of Science, SciFinder Scholar and Thomson Reuters databases were utilized to conduct a comprehensive search of published literature as of July 2021 to find original literature related to Syringa microphylla Diels and its active ingredients. RESULTS To date, 72 compounds have been isolated and identified from Syringa microphylla Diels, and oleuropein, verbascoside, isoacteoside, echinacoside, forsythoside B, and eleutheroside B are the main active components. These compounds have antioxidant, antibacterial, anti-inflammatory, and neuroprotective effects, and their safety and effectiveness have been demonstrated in long-term traditional applications. Molecular pharmacology experiments have indicated that the active ingredients of Syringa microphylla Diels exert their pharmacological effects in various ways, primarily by reducing oxidative stress damage via Nrf2/ARE pathway regulation, regulating inflammatory factors and inducing apoptosis through the MAPK and NF-κB pathways. CONCLUSION This comprehensive review of Syringa microphylla Diels provides new insights into the correlations among molecular mechanisms, the importance of toxicology and pharmacokinetics, and potential ways to address the limitations of current research. As Syringa microphylla Diels is a natural low-toxicity botanical medicine, it is worthy of development and utilization and is an excellent choice for treating various diseases.
Collapse
Affiliation(s)
- Dan Yang
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Jingyi Li
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Chengyuan Liang
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Lei Tian
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China; College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Chunyang Shi
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Nan Hui
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Yuan Liu
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Mei Ling
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Liang Xin
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Minge Wan
- School of Medicine and Pharmacy, Shaanxi University of Business & Commerce, Xi'an 712046, PR China
| | - Han Li
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Qianqian Zhao
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Xiaodong Ren
- Medical College, Guizhou University, Guiyang 550025, PR China.
| | - Hong Liu
- Zhuhai Jinan Selenium Source Nanotechnology Co., Ltd., Hengqin New Area, Zhuhai 519030, PR China.
| | - Wenqiang Cao
- Zhuhai Jinan Selenium Source Nanotechnology Co., Ltd., Hengqin New Area, Zhuhai 519030, PR China
| |
Collapse
|
9
|
Acteoside isolated from Colebrookea oppositifolia attenuates I/R brain injury in Wistar rats via modulation of HIF-1α, NF-κB, and VEGF pathways. Inflammopharmacology 2021; 29:1565-1577. [PMID: 34365555 DOI: 10.1007/s10787-021-00851-6] [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: 07/06/2021] [Accepted: 07/18/2021] [Indexed: 10/20/2022]
Abstract
AIMS The objective of this study was to assess the anti-stroke activity of acteoside isolated from methanolic root extract of C. oppositifolia METHODS: Ischemia-reperfusion(I/R) brain injury was induced in Wistar rats to assess the anti-stroke activity of acteoside. Rats were pretreated with acteoside (10, 25 & 50 mg/kg, p.o.) before the induction of I/R injury. Parameters such as neurological, motor-cognitive functions were evaluated along with morphological (brain volume, infarct size), biochemical (SOD, Catalase, GSH, lipid peroxidation, TNF-α, IL-6, IL-10, ICAM-1, HIF-1α, VEGF, and NF-κB), histopathological, and gene expression studies (HIF-1α, VEGF) were performed to study the protective effect of acteoside against I/R induced brain injury. RESULTS I/R injury caused significant deterioration of neurological (p < 0.01), motor (p < 0.01) and cognitive (p < 0.01) functions, associated with increase in the brain volume (p < 0.01), and infarct size (p < 0.01); increase in the levels of MDA, TNF-α, IL-6, ICAM-1, HIF-1α, VEGF, and NF-κB along with significant decrease in SOD, catalase, GSH, and IL-10 (p < 0.01 for all parameters) compared to Sham control group. Histology of brain tissue of disease control group exhibited significant vascular changes, neutrophil infiltration, cerebral oedema, and necrosis of the neuronal cells. Further, the gene-expression studies showed significant increase in the HIF-1α (p < 0.01) and VEGF (p < 0.01) mRNA levels in the I/R control compared to Sham control. Interestingly, the acteoside (10, 25 & 50 mg/kg) has prevented the neurological, motor and cognitive dysfunctions, along with inhibiting the morphological, biochemical, histological and gene expression changes induced by I/R-injury (p < 0.05 for 10 mg; p < 0.01 for 25 & 50 mg/kg of acteoside for all the parameters). CONCLUSION These findings suggest that acteoside possess potent anti-stroke activity through modulation of HIF-1α, NF-κB, and VEGF pathway along with its potent antioxidant activity.
Collapse
|
10
|
Naser AFA, Aziz WM, Ahmed YR, Khalil WKB, Hamed MAA. Parkinsonism-like disease induced by rotenone in rats: Treatment role of curcumin, dopamine agonist and adenosine A2A receptor antagonist. Curr Aging Sci 2021; 15:65-76. [PMID: 34042043 DOI: 10.2174/1874609814666210526115740] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 02/11/2021] [Accepted: 03/22/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Parkinsonism is a neurodegenerative disorder that affects elderly people worldwide. METHODS Curcumin, adenosine A2AR antagonist (ZM241385) and Sinemet® (L-dopa) were evaluated against Parkinson's disease (PD) induced by rotenone in rats and comparativelyrelatively compared with our previous study on mice model. RESULTS Rats injected with rotenone showed severe alterations in adenosine A2A receptor gene expression, oxidative stress markers, inflammatory mediator, energetic indices, apoptotic marker and DNA fragmentation levels as compare with the control group. Treatments with curcumin, ZM241385, and Sinemet® restored all the selected parameters. The brain histopathological features of cerebellum regions confirmed our results. By comparing our results with the previous results on mice, we noticed that mice respond to rotenone toxicity and treatments more than rats regarding to behavioral observation, A2AR gene expression, neurotransmitter levels, inflammatory mediator and apoptotic markers, while rats showed higher response to treatments regarding to oxidative stress and energetic indices. CONCLUSION Curcumin succeeded to attenuate the severe effects of Parkinson's disease in rat model and can be consider as a potential dietary supplement. Adenosine A2AR antagonist has almost the same pattern of improvement as Sinemet® and may be considered as a promising therapy against PD. By comparing the role of animal species in response to PD symptoms and treatments, our previous report on mice explore the response of mice to rotenone toxicity than rats, while rats showed higher response to treatments. Therefore, no animal model can perfectly recapitulate all the pathologies of PD.
Collapse
Affiliation(s)
| | - Wessam Magdi Aziz
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza, Egypt
| | - Yomna Rashad Ahmed
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza, Egypt
| | | | | |
Collapse
|
11
|
Aimaiti M, Wumaier A, Aisa Y, Zhang Y, Xirepu X, Aibaidula Y, Lei X, Chen Q, Feng X, Mi N. Acteoside exerts neuroprotection effects in the model of Parkinson's disease via inducing autophagy: Network pharmacology and experimental study. Eur J Pharmacol 2021; 903:174136. [PMID: 33940032 DOI: 10.1016/j.ejphar.2021.174136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 12/27/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease after Alzheimer's disease. At present, the incidence rate of PD is increasing worldwide, there is no effective cure available so far, and currently using drugs are still limited in efficacy due to serious side effects. Acteoside (ACT) is an active ingredient of many valuable medicinal plants, possesses potential therapeutic effects on many pathological conditions. In this study, we dissected the neuroprotection effects of ACT on PD and its potential molecular mechanism in our PD model pathology based on network pharmacology prediction and experimental assays. Network pharmacology and bioinformatics analysis demonstrated that ACT has 381 potential targets; among them 78 putative targets associated with PD were closely related to cellular autophagy and apoptotic processes. Our experimental results showed that ACT exerted significant neuroprotection effects on Rotenone (ROT) -induced injury of neuronal cells and Drosophila melanogaster (D. melanogaster). Meanwhile, ACT treatment induced autophagy in both neuronal cell lines and fat bodies of D. melanogaster. Furthermore, ACT treatment decreased ROT induced apoptotic rate and reactive oxygen species production, increased mitochondrial membrane potentials in neuronal cells, and promoted clearance of α-synuclein (SNCA) aggregations in SNCA overexpressed cell model through the autophagy-lysosome pathway. Interestingly, ACT treatment significantly enhanced mitophagy and protected cell injury in neuronal cells. Taken together, ACT may represent a potent stimulator of mitophagy pathway, thereby exerts preventive and therapeutic effects against neurodegenerative diseases such as PD by clearing pathogenic proteins and impaired cellular organelles like damaged mitochondria in neurons.
Collapse
Affiliation(s)
- Mutalifu Aimaiti
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Pharmacology, College of Pharmacy, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China; Central Laboratory, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Ainiwaer Wumaier
- Department of Pharmacology, College of Pharmacy, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - Yiliyasi Aisa
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Pharmacology, College of Pharmacy, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - Yu Zhang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Biology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - Xirenayi Xirepu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Teaching and Research of Crude Drugs, College of Pharmacy, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - Yilizire Aibaidula
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Pharmaceutical Analysis, College of Pharmacy, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - XiuYing Lei
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Biochemistry, College of Basic Medical Sciences, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - Qian Chen
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Biochemistry, College of Basic Medical Sciences, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - XueZhao Feng
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China; Department of Biochemistry, College of Basic Medical Sciences, Xinjiang Medical University, Urumqi, 830017, Xinjiang, China
| | - Na Mi
- State Key Laboratory of Pathogenesis, Prevention and Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China.
| |
Collapse
|
12
|
Song Y, Zeng K, Jiang Y, Tu P. Cistanches Herba, from an endangered species to a big brand of Chinese medicine. Med Res Rev 2021; 41:1539-1577. [PMID: 33521978 DOI: 10.1002/med.21768] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/11/2020] [Accepted: 11/27/2020] [Indexed: 12/18/2022]
Abstract
Cistanches Herba (CH, Chinese name: Roucongrong), is a very precious, tonic Chinese medicine. Cistanche deserticola and Cistanche tubulosa are the two commonly used species and authenticated in Chinese Pharmacopoeia. Due to the parasitic nature of Cistanche plants, the wild source was once endangered and listed in the Appendix II of Convention on International Trade in Endangered Species of Wild Fauna and Flora. However, after continuously struggling in the past decades, CH has grown up to a big brand of Chinese medicine featured with the cultivation area as 1.26 million mu, the annual output as 6000 tons, and the related industrial output value as more than 20 billion China Yuan, attributing to large-scale cultivation and in-depth phytochemical and pharmacological investigations. Noteworthily, great achievements have reached concerning the research and development of relevant products, such as modern drugs, traditional Chinese medicine prescriptions, and dietary supplements. The current review summarizes the research progresses concerning the distribution and cultivation, phytochemistry, pharmacology, metabolism and product development of CH in the past decades, and the emerging challenges and developing prospects are discussed as well.
Collapse
Affiliation(s)
- Yuelin Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.,Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Kewu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Pengfei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.,Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| |
Collapse
|
13
|
Mohsenpour H, Pesce M, Patruno A, Bahrami A, Pour PM, Farzaei MH. A Review of Plant Extracts and Plant-Derived Natural Compounds in the Prevention/Treatment of Neonatal Hypoxic-Ischemic Brain Injury. Int J Mol Sci 2021; 22:E833. [PMID: 33467663 PMCID: PMC7830094 DOI: 10.3390/ijms22020833] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 12/13/2022] Open
Abstract
Neonatal hypoxic-ischemic (HI) brain injury is one of the major drawbacks of mortality and causes significant short/long-term neurological dysfunction in newborn infants worldwide. To date, due to multifunctional complex mechanisms of brain injury, there is no well-established effective strategy to completely provide neuroprotection. Although therapeutic hypothermia is the proven treatment for hypoxic-ischemic encephalopathy (HIE), it does not completely chang outcomes in severe forms of HIE. Therefore, there is a critical need for reviewing the effective therapeutic strategies to explore the protective agents and methods. In recent years, it is widely believed that there are neuroprotective possibilities of natural compounds extracted from plants against HIE. These natural agents with the anti-inflammatory, anti-oxidative, anti-apoptotic, and neurofunctional regulatory properties exhibit preventive or therapeutic effects against experimental neonatal HI brain damage. In this study, it was aimed to review the literature in scientific databases that investigate the neuroprotective effects of plant extracts/plant-derived compounds in experimental animal models of neonatal HI brain damage and their possible underlying molecular mechanisms of action.
Collapse
Affiliation(s)
- Hadi Mohsenpour
- Department of Pediatrics, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah 75333–67427, Iran;
| | - Mirko Pesce
- Department of Medicine and Aging Sciences, University G. d’Annunzio, 66100 Chieti, Italy
| | - Antonia Patruno
- Department of Medicine and Aging Sciences, University G. d’Annunzio, 66100 Chieti, Italy
| | - Azam Bahrami
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67158-47141, Iran;
| | - Pardis Mohammadi Pour
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran;
| | - Mohammad Hosein Farzaei
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67158-47141, Iran;
| |
Collapse
|
14
|
Ohtsuki T, Matsuoka K, Fuji Y, Nishizaki Y, Masumoto N, Sugimoto N, Sato K, Matsufuji H. Development of an HPLC method with relative molar sensitivity based on 1H-qNMR to determine acteoside and pedaliin in dried sesame leaf powders and processed foods. PLoS One 2020; 15:e0243175. [PMID: 33270771 PMCID: PMC7714167 DOI: 10.1371/journal.pone.0243175] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/17/2020] [Indexed: 02/02/2023] Open
Abstract
A high-performance liquid chromatography (HPLC) method with relative molar sensitivity (RMS) based on 1H quantitative NMR spectroscopy (1H-qNMR) has been developed for food ingredients such as acteoside (verbascoside) and pedaliin (pedalitin-6-O-glucoside) without requiring authentic and identical standards as the reliable analytical methods. This method is used methyl 4-hydroxybenzoate (MHB) as an alternative reference standard. Each RMS is also calculated from the ratio of each analyte's molar absorption coefficient to that of MHB after correcting the purities of the analytes and reference standard by 1H-qNMR. Therefore, this method can quantify several analytes with metrological traceability to the International System of Units (SI) using the RMS and one alternative reference standard. In this study, the content of acteoside and pedaliin in several samples, such as dried sesame leaf powders and commercially processed foods, can be determined by the proposed RMS method and demonstrated in good agreement that obtained by a conventional method. Moreover, the proposed method yields analytical data with SI-traceability without the need for an authentic and identical analyte standard. Thus, the proposed RMS method is a useful and practical tool for determining acteoside and pedaliin in terms of the accuracy of quantitative values, the routine analysis, and the cost of reagents.
Collapse
Affiliation(s)
- Takashi Ohtsuki
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Kiyoaki Matsuoka
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Yushiro Fuji
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Yuzo Nishizaki
- Division of Food Additives, National Institute of Health Sciences, Kawasaki-ku, Kawasaki, Kanagawa, Japan
| | - Naoko Masumoto
- Division of Food Additives, National Institute of Health Sciences, Kawasaki-ku, Kawasaki, Kanagawa, Japan
| | - Naoki Sugimoto
- Division of Food Additives, National Institute of Health Sciences, Kawasaki-ku, Kawasaki, Kanagawa, Japan
| | - Kyoko Sato
- Division of Food Additives, National Institute of Health Sciences, Kawasaki-ku, Kawasaki, Kanagawa, Japan
| | - Hiroshi Matsufuji
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| |
Collapse
|
15
|
Ostendorf F, Metzdorf J, Gold R, Haghikia A, Tönges L. Propionic Acid and Fasudil as Treatment Against Rotenone Toxicity in an In Vitro Model of Parkinson's Disease. Molecules 2020; 25:molecules25112502. [PMID: 32481507 PMCID: PMC7321113 DOI: 10.3390/molecules25112502] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/27/2022] Open
Abstract
Parkinson’s disease (PD) is a multifactorial neurodegenerative disease. In recent years, several studies demonstrated that the gastroenteric system and intestinal microbiome influence central nervous system function. The pathological mechanisms triggered thereby change neuronal function in neurodegenerative diseases including dopaminergic neurons in Parkinson´s disease. In this study, we employed a model system for PD of cultured primary mesencephalic cells and used the pesticide rotenone to model dopaminergic cell damage. We examined neuroprotective effects of the Rho kinase inhibitor Fasudil and the short chain fatty acid (SCFA) propionic acid on primary neurons in cell morphological assays, cell survival, gene and protein expression. Fasudil application resulted in significantly enhanced neuritic outgrowth and increased cell survival of dopaminergic cells. The application of propionic acid primarily promoted cell survival of dopaminergic cells against rotenone toxicity and increased neurite outgrowth to a moderate extent. Interestingly, Fasudil augmented gene expression of synaptophysin whereas gene expression levels of tyrosine hydroxylase (TH) were substantially increased by propionic acid. Concerning protein expression propionic acid treatment increased STAT3 levels but did not lead to an increased phosphorylation indicative of pathway activation. Our findings indicate that both Fasudil and propionic acid treatment show beneficial potential in rotenone-lesioned primary mesencephalic cells.
Collapse
Affiliation(s)
- Friederike Ostendorf
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, 44791 Bochum, Germany; (F.O.); (J.M.); (R.G.); (A.H.)
| | - Judith Metzdorf
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, 44791 Bochum, Germany; (F.O.); (J.M.); (R.G.); (A.H.)
- Neurodegeneration Research, Centre for Protein Diagnostics (ProDi), Ruhr University, 44801 Bochum, Germany
| | - Ralf Gold
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, 44791 Bochum, Germany; (F.O.); (J.M.); (R.G.); (A.H.)
- Neurodegeneration Research, Centre for Protein Diagnostics (ProDi), Ruhr University, 44801 Bochum, Germany
| | - Aiden Haghikia
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, 44791 Bochum, Germany; (F.O.); (J.M.); (R.G.); (A.H.)
- Neurodegeneration Research, Centre for Protein Diagnostics (ProDi), Ruhr University, 44801 Bochum, Germany
| | - Lars Tönges
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, 44791 Bochum, Germany; (F.O.); (J.M.); (R.G.); (A.H.)
- Neurodegeneration Research, Centre for Protein Diagnostics (ProDi), Ruhr University, 44801 Bochum, Germany
- Correspondence:
| |
Collapse
|
16
|
Pathophysiology and Therapeutic Perspectives of Oxidative Stress and Neurodegenerative Diseases: A Narrative Review. Adv Ther 2020; 37:113-139. [PMID: 31782132 PMCID: PMC6979458 DOI: 10.1007/s12325-019-01148-5] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Indexed: 12/21/2022]
Abstract
Introduction Neurodegeneration is the term describing the death of neurons both in the central nervous system and periphery. When affecting the central nervous system, it is responsible for diseases like Alzheimer’s disease, Parkinson’s disease, Huntington’s disorders, amyotrophic lateral sclerosis, and other less frequent pathologies. There are several common pathophysiological elements that are shared in the neurodegenerative diseases. The common denominators are oxidative stress (OS) and inflammatory responses. Unluckily, these conditions are difficult to treat. Because of the burden caused by the progression of these diseases and the simultaneous lack of efficacious treatment, therapeutic approaches that could target the interception of development of the neurodegeneration are being widely investigated. This review aims to highlight the most recent proposed novelties, as most of the previous approaches have failed. Therefore, older approaches may currently be used by healthcare professionals and are not being presented. Methods This review was based on an electronic search of existing literature, using PubMed as primary source for important review articles, and important randomized clinical trials, published in the last 5 years. Reference lists from the most recent reviews, as well as additional sources of primary literature and references cited by relevant articles, were used. Results Eighteen natural pharmaceutical substances and 24 extracted or recombinant products, and artificial agents that can be used against OS, inflammation, and neurodegeneration were identified. After presenting the most common neurodegenerative diseases and mentioning some of the basic mechanisms that lead to neuronal loss, this paper presents up to date information that could encourage the development of better therapeutic strategies. Conclusions This review shares the new potential pharmaceutical and not pharmaceutical options that have been recently introduced regarding OS and inflammatory responses in neurodegenerative diseases.
Collapse
|
17
|
Wei W, Lu M, Lan X, Liu N, Wang H, Du J, Sun T, Li Y, Yu J. Neuroprotective effect of Verbascoside on hypoxic-ischemic brain damage in neonatal rat. Neurosci Lett 2019; 711:134415. [PMID: 31408670 DOI: 10.1016/j.neulet.2019.134415] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 07/18/2019] [Accepted: 08/05/2019] [Indexed: 01/30/2023]
Abstract
Hypoxic-ischemic brain damage (HIBD) leads to acute death and chronic neurological dysfunction in neonates. To date, there is no satisfactory acknowledged strategy to provide neuroprotection completely. Verbascoside (VB) has been proved to possess antioxidative, anti aging and neuroprotective activities. The aim of this study was to investigate whether VB provides neuroprotection to neonatal HIBD. Seven-day-old Sprague-Dawley rats were subjected to HIBD by permanent left carotid ligation for 2.5 h at 37 °C under hypoxic stress (8% O2, 92% N2). After VB treatment, early neurofunctions were assessed using the righting reflex and negative geotaxis reflex. 2, 3, 5-Triphenyltetrazolium chloride, Hematoxylin-Eosin, Nissl, and Fluoro-Jade B staining were used to evaluate the extent of brain damage. In addition, autophagy was observed by transmission electron microscopy, and the expression of autophagy-related proteins was measured using immunofluorescence and Western blot analysis. Results showed that administration of VB remarkably reduced neurofunctional latency, brain infarct volume, ameliorated neuronal damage and degeneration. Furthermore, VB decreased autophagosome formation, the Beclin-1 levels and LC3-II/I ratio with elevated levels of P62 in HIBD neonatal rats when compared to the HI group. These findings suggest that VB exerts potential neuroprotective effect against HIBD, which is at least partly to be mediated regulating autophagy.
Collapse
Affiliation(s)
- Wei Wei
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Min Lu
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Xiaobing Lan
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Ning Liu
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Hui Wang
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Juan Du
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China; Ningxia Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Tao Sun
- Ningxia Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Yuxiang Li
- College of Nursing, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China.
| | - Jianqiang Yu
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China; Ningxia Hui Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China.
| |
Collapse
|
18
|
Olsen AL, Feany MB. Glial α-synuclein promotes neurodegeneration characterized by a distinct transcriptional program in vivo. Glia 2019; 67:1933-1957. [PMID: 31267577 DOI: 10.1002/glia.23671] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/29/2019] [Accepted: 06/18/2019] [Indexed: 12/15/2022]
Abstract
α-Synucleinopathies are neurodegenerative diseases that are characterized pathologically by α-synuclein inclusions in neurons and glia. The pathologic contribution of glial α-synuclein in these diseases is not well understood. Glial α-synuclein may be of particular importance in multiple system atrophy (MSA), which is defined pathologically by glial cytoplasmic α-synuclein inclusions. We have previously described Drosophila models of neuronal α-synucleinopathy, which recapitulate key features of the human disorders. We have now expanded our model to express human α-synuclein in glia. We demonstrate that expression of α-synuclein in glia alone results in α-synuclein aggregation, death of dopaminergic neurons, impaired locomotor function, and autonomic dysfunction. Furthermore, co-expression of α-synuclein in both neurons and glia worsens these phenotypes as compared to expression of α-synuclein in neurons alone. We identify unique transcriptomic signatures induced by glial as opposed to neuronal α-synuclein. These results suggest that glial α-synuclein may contribute to the burden of pathology in the α-synucleinopathies through a cell type-specific transcriptional program. This new Drosophila model system enables further mechanistic studies dissecting the contribution of glial and neuronal α-synuclein in vivo, potentially shedding light on mechanisms of disease that are especially relevant in MSA but also the α-synucleinopathies more broadly.
Collapse
Affiliation(s)
- Abby L Olsen
- Department of Neurology, Brigham and Women's Hospital, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Mel B Feany
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
19
|
Javed H, Nagoor Meeran MF, Azimullah S, Adem A, Sadek B, Ojha SK. Plant Extracts and Phytochemicals Targeting α-Synuclein Aggregation in Parkinson's Disease Models. Front Pharmacol 2019; 9:1555. [PMID: 30941047 PMCID: PMC6433754 DOI: 10.3389/fphar.2018.01555] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 12/20/2018] [Indexed: 12/21/2022] Open
Abstract
α-Synuclein (α-syn) is a presynaptic protein that regulates the release of neurotransmitters from synaptic vesicles in the brain. α-Syn aggregates, including Lewy bodies, are features of both sporadic and familial forms of Parkinson's disease (PD). These aggregates undergo several key stages of fibrillation, oligomerization, and aggregation. Therapeutic benefits of drugs decline with disease progression and offer only symptomatic treatment. Novel therapeutic strategies are required which can either prevent or delay the progression of the disease. The link between α-syn and the etiopathogenesis and progression of PD are well-established in the literature. Studies indicate that α-syn is an important therapeutic target and inhibition of α-syn aggregation, oligomerization, and fibrillation are an important disease modification strategy. However, recent studies have shown that plant extracts and phytochemicals have neuroprotective effects on α-syn oligomerization and fibrillation by targeting different key stages of its formation. Although many reviews on the antioxidant-mediated, neuroprotective effect of plant extracts and phytochemicals on PD symptoms have been well-highlighted, the antioxidant mechanisms show limited success for translation to clinical studies. The identification of specific plant extracts and phytochemicals that target α-syn aggregation will provide selective molecules to develop new drugs for PD. The present review provides an overview of plant extracts and phytochemicals that target α-syn in PD and summarizes the observed effects and the underlying mechanisms. Furthermore, we provide a synopsis of current experimental models and techniques used to evaluate plant extracts and phytochemicals. Plant extracts and phytochemicals were found to inhibit the aggregation or fibril formation of oligomers. These also appear to direct α-syn oligomer formation into its unstructured form or promote non-toxic pathways and suggested to be valuable drug candidates for PD and related synucleinopathy. Current evidences from in vitro studies require confirmation in the in vivo studies. Further studies are needed to ascertain their potential effects and safety in preclinical studies for pharmaceutical/nutritional development of these phytochemicals or dietary inclusion of the plant extracts in PD treatment.
Collapse
Affiliation(s)
- Hayate Javed
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Mohamed Fizur Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sheikh Azimullah
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Abdu Adem
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Bassem Sadek
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Shreesh Kumar Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| |
Collapse
|
20
|
Investigation of dynamic accumulation and regularity of nine glycosides and saccharides in
Rehmannia glutinosa
by rapid quantitative analysis technology. J Sep Sci 2019; 42:1489-1499. [DOI: 10.1002/jssc.201801185] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/22/2019] [Accepted: 01/28/2019] [Indexed: 12/28/2022]
|
21
|
Kodani A, Kikuchi T, Tohda C. Acteoside Improves Muscle Atrophy and Motor Function by Inducing New Myokine Secretion in Chronic Spinal Cord Injury. J Neurotrauma 2019; 36:1935-1948. [PMID: 30318996 PMCID: PMC6599386 DOI: 10.1089/neu.2018.6000] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Chronic spinal cord injury (SCI) is difficult to cure, even by several approaches effective at the acute or subacute phase. We focused on skeletal muscle atrophy as a detrimental factor in chronic SCI and explored drugs that protect against muscle atrophy and activate secretion of axonal growth factors from skeletal muscle. We found that acteoside induced the secretion of axonal growth factors from skeletal muscle cells and proliferation of these cells. Intramuscular injection of acteoside in mice with chronic SCI recovered skeletal muscle weight reduction and motor function impairment. We also identified pyruvate kinase isoform M2 (PKM2) as a secreted factor from skeletal muscle cells, stimulated by acteoside. Extracellular PKM2 enhanced proliferation of skeletal muscle cells and axonal growth in cultured neurons. Further, we showed that PKM2 might cross the blood–brain barrier. These results indicate that effects of acteoside on chronic SCI might be mediated by PKM2 secretion from skeletal muscles. This study proposes that the candidate drug acteoside and a new myokine, PKM2, could be used for the treatment of chronic SCI.
Collapse
Affiliation(s)
- Atsushi Kodani
- Division of Neuromedical Science, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Takahiro Kikuchi
- Division of Neuromedical Science, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Chihiro Tohda
- Division of Neuromedical Science, Institute of Natural Medicine, University of Toyama, Toyama, Japan
- Address correspondence to: Chihiro Tohda, PhD, Division of Neuromedical Science, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| |
Collapse
|
22
|
Singh S, Mishra A, Mohanbhai SJ, Tiwari V, Chaturvedi RK, Khurana S, Shukla S. Axin-2 knockdown promote mitochondrial biogenesis and dopaminergic neurogenesis by regulating Wnt/β-catenin signaling in rat model of Parkinson's disease. Free Radic Biol Med 2018; 129:73-87. [PMID: 30176346 DOI: 10.1016/j.freeradbiomed.2018.08.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/23/2018] [Accepted: 08/27/2018] [Indexed: 12/24/2022]
Abstract
Wnts and the components of Wnt/β-catenin signaling are widely expressed in midbrain and required to control the fate specification of dopaminergic (DAergic) neurons, a neuronal population that specifically degenerate in Parkinson's disease (PD). Accumulating evidence suggest that mitochondrial dysfunction plays a key role in pathogenesis of PD. Axin-2, a negative regulator of Wnt/β-catenin signaling affects mitochondrial biogenesis and death/birth of new DAergic neurons is not fully explored. We investigated the functional role of Axin-2/Wnt/β-catenin signaling in mitochondrial biogenesis and DAergic neurogenesis in 6-hydroxydopamine (6-OHDA) induced rat model of PD-like phenotypes. We demonstrate that single unilateral injection of 6-OHDA into the medial forebrain bundle (MFB) potentially dysregulates Wnt/β-catenin signaling in substantia nigra pars compacta (SNpc). We used shRNA lentiviruses to genetically knockdown Axin-2 to up-regulate Wnt/β-catenin signaling in SNpc in parkinsonian rats. Genetic knockdown of Axin-2 up-regulates Wnt/β-catenin signaling by destabilizing the β-catenin degradation complex in SNpc in parkinsonian rats. Axin-2 shRNA mediated activation of Wnt/β-catenin signaling improved behavioural functions and protected the nigral DAergic neurons by increasing mitochondrial functionality in parkinsonian rats. Axin-2 shRNA treatment reduced apoptotic signaling, autophagy and ROS generation and improved mitochondrial membrane potential which promotes mitochondrial biogenesis in SNpc in parkinsonian rats. Interestingly, Axin-2 shRNA-mediated up-regulation of Wnt/β-catenin signaling enhanced net DAergic neurogenesis by regulating proneural genes (Nurr-1, Pitx-3, Ngn-2, and NeuroD1) and mitochondrial biogenesis in SNpc in parkinsonian rats. Therefore, our data suggest that pharmacological/genetic manipulation of Wnt signaling that enhances the endogenous regenerative capacity of DAergic neurons may have implication for regenerative approaches in PD.
Collapse
MESH Headings
- Adaptor Proteins, Signal Transducing/antagonists & inhibitors
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Basic Helix-Loop-Helix Transcription Factors/genetics
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Carrier Proteins/antagonists & inhibitors
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Dopaminergic Neurons/drug effects
- Dopaminergic Neurons/metabolism
- Dopaminergic Neurons/pathology
- Gene Expression Regulation
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Injections, Intraventricular
- Male
- Medial Forebrain Bundle/drug effects
- Medial Forebrain Bundle/metabolism
- Medial Forebrain Bundle/pathology
- Mesencephalon/drug effects
- Mesencephalon/metabolism
- Mesencephalon/pathology
- Mitochondria/genetics
- Mitochondria/metabolism
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- Neurogenesis/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 2/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 2/metabolism
- Organelle Biogenesis
- Oxidopamine/administration & dosage
- Parkinson Disease, Secondary/chemically induced
- Parkinson Disease, Secondary/genetics
- Parkinson Disease, Secondary/metabolism
- Parkinson Disease, Secondary/pathology
- Pars Compacta/drug effects
- Pars Compacta/metabolism
- Pars Compacta/pathology
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Rats
- Rats, Sprague-Dawley
- Stereotaxic Techniques
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Wnt Proteins/genetics
- Wnt Proteins/metabolism
- Wnt Signaling Pathway
- beta Catenin/genetics
- beta Catenin/metabolism
Collapse
Affiliation(s)
- Sonu Singh
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, U.P., India
| | - Akanksha Mishra
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, U.P., India; Academy of Scientific and Innovative Research, New Delhi, India
| | | | - Virendra Tiwari
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, U.P., India; Academy of Scientific and Innovative Research, New Delhi, 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, Uttar Pradesh 226001, India
| | - Sukant Khurana
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, U.P., India
| | - Shubha Shukla
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, U.P., India; Academy of Scientific and Innovative Research, New Delhi, India.
| |
Collapse
|
23
|
Viswanatha GL, Venkataranganna MV, Prasad NBL, Hanumanthappa S. Chemical characterization and cerebroprotective effect of methanolic root extract of Colebrookea oppositifolia in rats. JOURNAL OF ETHNOPHARMACOLOGY 2018; 223:63-75. [PMID: 29777902 DOI: 10.1016/j.jep.2018.05.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/22/2018] [Accepted: 05/10/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Colebrookea oppositifolia Smith is one of the extensively used plants to treat neurological conditions such as epilepsy by the various ethnic communities in sub-Himalayan regions of India such as Bhoxa, Tharu and nomadic Gujjars. AIM OF THE STUDY This study was conducted to evaluate the cerebroprotective effect of C. oppositifolia methanolic root (MeCO) extract in Wistar rats. MATERIALS AND METHODS The MeCO was characterized for total phenolic content and later subjected for detailed liquid chromatography-mass spectrometry analysis. Further, it was evaluated for in vitro antioxidant activity using 2, 2-diphenyl-1-picrylhydrazyl, ferric reducing antioxidant power and oxygen radical absorbance capacity assays. In addition, the MeCO was investigated on generation of ROS, nitrite, and TNF-α in LPS-stimulated RAW 264.7 cell lines. Finally, the cerebroprotective effect of MeCO was examined against global ischemia and reperfusion (I/R)-induced brain injury in Wistar rats. Male Wistar rats were allocated in to five groups (G-I to G-V, n = 10). G-I and G-II served as sham control and I/R control, respectively, and received only vehicle (0.5% w/v carboxy methyl cellulose, 10 ml/kg, p.o.). G-III served as reference standard and received quercetin (20 mg/kg, p.o.). G-IV and G-V animals received 200 and 400 mg/kg oral doses of MeCO, respectively. All the treatments were given for a period of seven days and the parameters such as neurobehavioral (neurological, and cognitive), and motor functions, biochemical (enzymatic and non-enzymatic antioxidants, TNF-α, IL-6, IL-10, ICAM-I), morphological (cerebral edema and infarct area) and histopathological evaluations were performed. RESULTS The MeCO showed a total phenolic content of 137.28 mg gallic acid equivalents/g, and LC-MS/MS analysis of MeCO showed presence of acteoside, gossypin, quercetin and ferulic acid as major ingredients (6680.3, 1.55, 3.52 and 431.1 ng/mg). In in vitro antioxidant assays, the MeCO exhibited potent activity with IC50 of 49.10 µg/ml in DPPH assay; FRAP and ORAC values of 1180.5 and 2983.5 respectively. Furthermore, the MeCO significantly inhibited generation of ROS, nitrite and TNF-α in LPS-stimulated RAW 264.7 cell lines. Sixty min of global ischemia with 24 h reperfusion produced substantial alterations in neurobehavioral functions in the I/R control group compared to sham control. In addition, a significant reduction in catalase and superoxide dismutase activities was observed. Moreover, lipid peroxidation increased and reduced glutathione levels decreased significantly. Furthermore, the levels of pro-inflammatory cytokines (TNF-α, IL-6, and ICAM-I) increased significantly and those of anti-inflammatory (IL-10) decreased. I/R insult increased the brain volume and aggravated cerebral infarct formation. Histopathological examination of the rat brain revealed vascular congestion, cerebral edema, leukocyte infiltration, and brain tissue necrosis. Interestingly, seven days pretreatment with MeCO (200 and 400 mg/kg) alleviated all the I/R-induced perturbances (neurobehavioral, and motor functions, biochemical, morphological and histopathological) compared with the I/R control. CONCLUSIONS The MeCO exhibit potent cerebroprotective activity through its potent antioxidant and anti-inflammatory mechanisms, and hence may be useful in the management of ischemic stroke and associated complications.
Collapse
|
24
|
Comparative transcriptome analyses of three medicinal Forsythia species and prediction of candidate genes involved in secondary metabolisms. J Nat Med 2018; 72:867-881. [DOI: 10.1007/s11418-018-1218-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 04/18/2018] [Indexed: 11/28/2022]
|
25
|
Fuji Y, Uchida A, Fukahori K, Chino M, Ohtsuki T, Matsufuji H. Chemical characterization and biological activity in young sesame leaves (Sesamum indicum L.) and changes in iridoid and polyphenol content at different growth stages. PLoS One 2018; 13:e0194449. [PMID: 29584748 PMCID: PMC5870955 DOI: 10.1371/journal.pone.0194449] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 03/02/2018] [Indexed: 01/02/2023] Open
Abstract
Three iridoids (lamalbid (I1), sesamoside (I2) and shanzhiside methyl ester (I3)) and seven polyphenols (cistanoside F (P1), chlorogenic acid (P2), pedalitin-6-O-laminaribioside (P3), pedaliin (P4), isoacteoside (P6), pedalitin (P7) and martynoside (P8)) were identified in young sesame leaves (Sesamum indicum L.) other than the acteoside (P5) reported previously. P3 was a new compound, and I1, I3, P2 and P8 were found in a species of Sesamum for the first time. HPLC analyses revealed that the compounds I1 (0.29-1.75% of dry leaves), I2 (0.38-0.87%), I3 (0.04-1.07%), P4 (0.01-2.05%) and P5 (0.13-4.86%) were present primarily in young sesame leaves and were found in plants cultivated on different farms (plant height, 30-70 cm). Of the identified compounds, P5 and P6 showed high 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, oxygen radical absorbance capacity (ORAC), and in vitro antiglycation activities. Given its content, P5 makes a major contribution to the biological activities of young sesame leaves. The compounds were examined at six different growth stages of plants cultured in a greenhouse to determine the optimum harvest stage and for end-use assessment. P5 accumulated in the leaves during growth, and the content reached a maximum of 12.9% of dry leaves in the 4th stage (plant height, 74.5±9.7 cm), which is one of the highest percentages reported in plants from nature.
Collapse
Affiliation(s)
- Yushiro Fuji
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Ayumi Uchida
- Wadaman Science Co., Ltd, Nijoden-cho, Nakagyo-ku, Kyoto, Japan
| | | | - Makoto Chino
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Takashi Ohtsuki
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Hiroshi Matsufuji
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
- * E-mail:
| |
Collapse
|
26
|
Cheimonidi C, Samara P, Polychronopoulos P, Tsakiri EN, Nikou T, Myrianthopoulos V, Sakellaropoulos T, Zoumpourlis V, Mikros E, Papassideri I, Argyropoulou A, Halabalaki M, Alexopoulos LG, Skaltsounis AL, Tsitsilonis OE, Aligiannis NN, Trougakos IP. Selective cytotoxicity of the herbal substance acteoside against tumor cells and its mechanistic insights. Redox Biol 2018; 16:169-178. [PMID: 29505920 PMCID: PMC5952579 DOI: 10.1016/j.redox.2018.02.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/11/2018] [Accepted: 02/15/2018] [Indexed: 12/11/2022] Open
Abstract
Natural products are characterized by extreme structural diversity and thus they offer a unique source for the identification of novel anti-tumor agents. Herein, we report that the herbal substance acteoside being isolated by advanced phytochemical methods from Lippia citriodora leaves showed enhanced cytotoxicity against metastatic tumor cells; acted in synergy with various cytotoxic agents and it sensitized chemoresistant cancer cells. Acteoside was not toxic in physiological cellular contexts, while it increased oxidative load, affected the activity of proteostatic modules and suppressed matrix metalloproteinases in tumor cell lines. Intraperitoneal or oral (via drinking water) administration of acteoside in a melanoma mouse model upregulated antioxidant responses in the tumors; yet, only intraperitoneal delivery suppressed tumor growth and induced anti-tumor-reactive immune responses. Mass-spectrometry identification/quantitation analyses revealed that intraperitoneal delivery of acteoside resulted in significantly higher, vs. oral administration, concentration of the compound in the plasma and tumors of treated mice, suggesting that its in vivo anti-tumor effect depends on the route of administration and the achieved concentration in the tumor. Finally, molecular modeling studies and enzymatic activity assays showed that acteoside inhibits protein kinase C. Conclusively, acteoside holds promise as a chemical scaffold for the development of novel anti-tumor agents. Acteoside was not toxic in physiological cellular or tissue contexts. This natural compound modulated antioxidant responses and proteostatic modules. Acteoside showed in vitro and in vivo selective cytotoxicity against tumor cells. IP administration of acteoside in a mouse tumor model activated immune responses. Acteoside inhibited Protein Kinase C.
Collapse
Affiliation(s)
- Christina Cheimonidi
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784, Greece
| | - Pinelopi Samara
- Department of Animal and Human Physiology, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece
| | - Panagiotis Polychronopoulos
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Eleni N Tsakiri
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784, Greece
| | - Theodora Nikou
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Vassilios Myrianthopoulos
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | | | - Vassilis Zoumpourlis
- Biomedical Applications Unit, Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation, 116 35 Athens, Greece
| | - Emmanuel Mikros
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Issidora Papassideri
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784, Greece
| | - Aikaterini Argyropoulou
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Maria Halabalaki
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Leonidas G Alexopoulos
- School of Mechanical Engineering, National Technical University of Athens, Athens 15780, Greece
| | - Alexios-Leandros Skaltsounis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Ourania E Tsitsilonis
- Department of Animal and Human Physiology, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece
| | - Nektarios N Aligiannis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Ioannis P Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784, Greece.
| |
Collapse
|
27
|
Martinez B, Peplow PV. Neuroprotection by immunomodulatory agents in animal models of Parkinson's disease. Neural Regen Res 2018; 13:1493-1506. [PMID: 30127102 PMCID: PMC6126123 DOI: 10.4103/1673-5374.237108] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Parkinson's disease (PD) is an age-related neurodegenerative disease for which the characteristic motor symptoms emerge after an extensive loss of dopamine containing neurons. The cell bodies of these neurons are present in the substantia nigra, with the nerve terminals being in the striatum. Both innate and adaptive immune responses may contribute to dopaminergic neurodegeneration and disease progression is potentially linked to these. Studies in the last twenty years have indicated an important role for neuroinflammation in PD through degeneration of the nigrostriatal dopaminergic pathway. Characteristic of neuroinflammation is the activation of brain glial cells, principally microglia and astrocytes that release various soluble factors. Many of these factors are proinflammatory and neurotoxic and harmful to nigral dopaminergic neurons. Recent studies have identified several different agents with immunomodulatory properties that protected dopaminergic neurons from degeneration and death in animal models of PD. All of the agents were effective in reducing the motor deficit and alleviating dopaminergic neurotoxicity and, when measured, preventing the decrease of dopamine upon being administered therapeutically after 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine, 6-hydroxydopamine, rotenone-lesioning or delivery of adeno-associated virus-α-synuclein to the ventral midbrain of animals. Some of these agents were shown to exert an anti-inflammatory action, decrease oxidative stress, and reduce lipid peroxidation products. Activation of microglia and astrocytes was also decreased, as well as infiltration of T cells into the substantia nigra. Pretreatment with fingolimod, tanshinoine I, dimethyl fumarate, thalidomide, or cocaine- and amphetamine-regulated transcript peptide as a preventive strategy ameliorated motor deficits and nigral dopaminergic neurotoxicity in brain-lesioned animals. Immunomodulatory agents could be used to treat patients with early clinical signs of the disease or potentially even prior to disease onset in those identified as having pre-disposing risk, including genetic factors.
Collapse
Affiliation(s)
- Bridget Martinez
- Department of Molecular & Cellular Biology, University of California, Merced, CA; Department of Medicine, St. Georges University School of Medicine, Grenada; Department of Physics and Engineering, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Philip V Peplow
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| |
Collapse
|
28
|
Wang N, Ji S, Zhang H, Mei S, Qiao L, Jin X. Herba Cistanches: Anti-aging. Aging Dis 2017; 8:740-759. [PMID: 29344414 PMCID: PMC5758349 DOI: 10.14336/ad.2017.0720] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 07/20/2017] [Indexed: 12/11/2022] Open
Abstract
The Cistanche species ("Rou Cong Rong" in Chinese) is an endangered wild species growing in arid or semi-arid areas. The dried fleshy stem of Cistanches has been used as a tonic in China for many years. Modern pharmacological studies have since demonstrated that Herba Cistanches possesses broad medicinal functions, especially for use in anti-senescence, anti-oxidation, neuroprotection, anti-inflammation, hepatoprotection, immunomodulation, anti-neoplastic, anti-osteoporosis and the promotion of bone formation. This review summarizes the up-to-date and comprehensive information on Herba Cistanches covering the aspects of the botany, traditional uses, phytochemistry and pharmacology, to lay ground for fully elucidating the potential mechanisms of Herba Cistanches' anti-aging effect and promote its clinical application as an anti-aging herbal medicine.
Collapse
Affiliation(s)
- Ningqun Wang
- Department of Traditional Chinese Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
| | - Shaozhen Ji
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
| | - Hao Zhang
- Department of Radiology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
| | - Shanshan Mei
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
| | - Lumin Qiao
- Department of Emergency, Traditional Chinese Medicine Hospital of Yinchuan, Ningxia Hui Nationality Autonomous Region 750001, China.
| | - Xianglan Jin
- Department of Neurology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China.
| |
Collapse
|
29
|
Lu JYD, Su P, Barber JEM, Nash JE, Le AD, Liu F, Wong AHC. The neuroprotective effect of nicotine in Parkinson's disease models is associated with inhibiting PARP-1 and caspase-3 cleavage. PeerJ 2017; 5:e3933. [PMID: 29062606 PMCID: PMC5651169 DOI: 10.7717/peerj.3933] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 09/26/2017] [Indexed: 12/20/2022] Open
Abstract
Clinical evidence points to neuroprotective effects of smoking in Parkinson’s disease (PD), but the molecular mechanisms remain unclear. We investigated the pharmacological pathways involved in these neuroprotective effects, which could provide novel ideas for developing targeted neuroprotective treatments for PD. We used the ETC complex I inhibitor methylpyridinium ion (MPP+) to induce cell death in SH-SY5Y cells as a cellular model for PD and found that nicotine inhibits cell death. Using choline as a nicotinic acetylcholine receptor (nAChR) agonist, we found that nAChR stimulation was sufficient to protect SH-SY5Y cells against cell death from MPP+. Blocking α7 nAChR with methyllycaconitine (MLA) prevented the protective effects of nicotine, demonstrating that these receptors are necessary for the neuroprotective effects of nicotine. The neuroprotective effect of nicotine involves other pathways relevant to PD. Cleaved Poly (ADP-ribose) polymerase-1 (PARP-1) and cleaved caspase-3 were decreased by nicotine in 6-hydroxydopamine (6-OHDA) lesioned mice and in MPP+-treated SH-SY5Y cells. In conclusion, our data indicate that nicotine likely exerts neuroprotective effects in PD through the α7 nAChR and downstream pathways including PARP-1 and caspase-3. This knowledge could be pursued in future research to develop neuroprotective treatments for PD.
Collapse
Affiliation(s)
- Justin Y D Lu
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Ping Su
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - James E M Barber
- Centre for the Neurobiology of Stress, Department of Biological Sciences, University of Toronto, Scarborough, Toronto, Ontario, Canada
| | - Joanne E Nash
- Centre for the Neurobiology of Stress, Department of Biological Sciences, University of Toronto, Scarborough, Toronto, Ontario, Canada
| | - Anh D Le
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Fang Liu
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Albert H C Wong
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
30
|
Brantley SJ, Cotten SW, Lamson DR, Smith GR, Liu R, Williams KP. Discovery of small molecule inhibitors for the C. elegans caspase CED-3 by high-throughput screening. Biochem Biophys Res Commun 2017; 491:773-779. [PMID: 28733033 DOI: 10.1016/j.bbrc.2017.07.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 07/17/2017] [Indexed: 11/24/2022]
Abstract
C. elegans has been widely used as a model organism for programmed cell death and apoptosis. Although the CED-3 caspase is the primary effector of cell death in C. elegans, no selective inhibitors have been identified. Utilizing high-throughput screening with recombinant C. elegans CED-3 protein, we have discovered and confirmed 21 novel small molecule inhibitors. Six compounds had IC50 values < 10 μM. From these, four distinct chemotypes were identified. The inhibitor scaffolds described here could lead to the development of selective molecular probes to facilitate our understanding of programmed cell death in this model organism.
Collapse
Affiliation(s)
- Scott J Brantley
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Steven W Cotten
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - David R Lamson
- Biomanufacturing Research Institute and Technology Enterprise, Durham, NC 27707, USA
| | - Ginger R Smith
- Biomanufacturing Research Institute and Technology Enterprise, Durham, NC 27707, USA
| | - Rihe Liu
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA; Carolina Center for Genome Sciences, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Kevin P Williams
- Biomanufacturing Research Institute and Technology Enterprise, Durham, NC 27707, USA; Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC 27707, USA.
| |
Collapse
|
31
|
Lu Y, Zhou W, Feng Y, Li Y, Liu K, Liu L, Lin D, He Z, Wu X. Acteoside and Acyl-Migrated Acteoside, Compounds in Chinese Kudingcha Tea, Inhibit α-Amylase In Vitro. J Med Food 2017; 20:577-585. [PMID: 28486011 DOI: 10.1089/jmf.2016.3910] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Affiliation(s)
- Yuqin Lu
- School of Medicine, Shenzhen University, Shenzhen, P.R. China
| | - Wenyu Zhou
- The First Affiliated Hospital of Shenzhen University (The Second People's Hospital of Shenzhen), Shenzhen, P.R. China
| | - Yue Feng
- School of Medicine, Shenzhen University, Shenzhen, P.R. China
| | - Yao Li
- School of Medicine, Shenzhen University, Shenzhen, P.R. China
| | - Ke Liu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, P.R. China
| | - Lizhong Liu
- School of Medicine, Shenzhen University, Shenzhen, P.R. China
| | - Dongxu Lin
- School of Medicine, Shenzhen University, Shenzhen, P.R. China
| | - Zhendan He
- School of Medicine, Shenzhen University, Shenzhen, P.R. China
| | - Xuli Wu
- School of Medicine, Shenzhen University, Shenzhen, P.R. China
| |
Collapse
|
32
|
Neuroprotective Effects of Sigesbeckia pubescens Extract on Glutamate-Induced Oxidative Stress in HT22 Cells via Downregulation of MAPK/caspase-3 Pathways. Cell Mol Neurobiol 2017; 38:497-505. [PMID: 28477054 DOI: 10.1007/s10571-017-0496-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/22/2017] [Indexed: 11/27/2022]
Abstract
Sigesbeckia pubescens (SP) is a traditional Chinese medicine, possessing antioxidant and anti-inflammatory activities. In this study, we evaluate the neuroprotective activities of SP extract on glutamate-induced oxidative stress in HT22 cells and the molecular mechanism underlying neuroprotection. We applied 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT), crystal violet, reactive oxygen species (ROS), lactate dehydrogenase (LDH), quantitative real-time polymerase chain reaction (qPCR), and western blot analyses for assessing the neuroprotective effects of SP extract. The experimental study revealed that SP considerably increased the cell viability, and reduced the oxidative stress promoted ROS and LDH generation in HT22 cells in a dose-dependent manner. Additionally, the morphology of HT22 cells was effectively improved by SP. Upregulated gene expressions of mitogen-activated protein kinase (MAPK) were markedly attenuated by SP. Similarly, SP notably suppressed the ROS-mediated phosphorylation of MAPK (pERK1/2, pJNK, and pp38) cascades and activation of apoptotic factor caspase-3 signaling pathway that overall contributed to the neuroprotection. Taken together, SP may exert neuroprotective effects via alteration of MAPK and caspase-3 pathways under oxidative stress condition. Therefore, SP is a potential agent for preventing oxidative stress-mediated neuronal cell death.
Collapse
|
33
|
Herrera A, Muñoz P, Steinbusch HWM, Segura-Aguilar J. Are Dopamine Oxidation Metabolites Involved in the Loss of Dopaminergic Neurons in the Nigrostriatal System in Parkinson's Disease? ACS Chem Neurosci 2017; 8:702-711. [PMID: 28233992 DOI: 10.1021/acschemneuro.7b00034] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In 1967, L-dopa was introduced as part of the pharmacological therapy of Parkinson's disease (PD) and, in spite of extensive research, no additional effective drugs have been discovered to treat PD. This brings forward the question: why have no new drugs been developed? We consider that one of the problems preventing the discovery of new drugs is that we still have no information on the pathophysiology of the neurodegeneration of the neuromelanin-containing nigrostriatal dopaminergic neurons. Currently, it is widely accepted that the degeneration of dopaminergic neurons, i.e., in the substantia nigra pars compacta, involves mitochondrial dysfunction, the formation of neurotoxic oligomers of alpha-synuclein, the dysfunction of protein degradation systems, neuroinflammation, and oxidative and endoplasmic reticulum stress. However, the initial trigger of these mechanisms in the nigrostriatal system is still unknown. It has been reported that aminochrome induces the majority of these mechanisms involved in the neurodegeneration process. Aminochrome is formed within the cytoplasm of neuromelanin-containing dopaminergic neurons during the oxidation of dopamine to neuromelanin. The oxidation of dopamine to neuromelanin is a normal and harmless process, because healthy individuals have intact neuromelanin-containing dopaminergic neurons. Interestingly, aminochrome-induced neurotoxicity is prevented by two enzymes: DT-diaphorase and glutathione transferase M2-2, which explains why melanin-containing dopaminergic neurons are intact in healthy human brains.
Collapse
Affiliation(s)
- Andrea Herrera
- Molecular & Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
- Department of Neuroscience, Faculty of
Health, Medicine and Life Sciences, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Patricia Muñoz
- Molecular & Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Harry W. M. Steinbusch
- Department of Neuroscience, Faculty of
Health, Medicine and Life Sciences, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Juan Segura-Aguilar
- Molecular & Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| |
Collapse
|