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Qu L, Ji L, Wang C, Luo H, Li S, Peng W, Yin F, Lu D, Liu X, Kong L, Wang X. Synthesis and evaluation of multi-target-directed ligands with BACE-1 inhibitory and Nrf2 agonist activities as potential agents against Alzheimer's disease. Eur J Med Chem 2021; 219:113441. [PMID: 33862517 DOI: 10.1016/j.ejmech.2021.113441] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/15/2021] [Accepted: 03/31/2021] [Indexed: 12/17/2022]
Abstract
Cumulative evidence suggests that β-amyloid and oxidative stress are closely related with each other and play key roles in the process of Alzheimer's disease (AD). Multitarget regulation of both pathways might represent a promising therapeutic strategy. Here, a series of selenium-containing compounds based on ebselen and verubecestat were designed and synthesized. Biological evaluation showed that 13f exhibited good BACE-1 inhibitory activity (IC50 = 1.06 μΜ) and potent GPx-like activity (ν0 = 183.0 μM min-1). Aβ production experiment indicated that 13f could reduce the secretion of Aβ1-40 in HEK APPswe 293T cells. Moreover, 13f exerted a cytoprotective effect against the H2O2 or 6-OHDA caused cell damage via alleviation of intracellular ROS, mitochondrial dysfunction, Ca2+ overload and cell apoptosis. The mechanism studies indicated that 13f exhibited cytoprotective effect by activating the Keap1-Nrf2-ARE pathway and stimulating downstream anti-oxidant protein including HO-1, NQO1, TrxR1, GCLC, and GCLM. In addition, 13f significantly reduced the production of NO and IL-6 induced by LPS in BV2 cells, which confirmed its anti-inflammatory activity as a Nrf2 activator. The BBB permeation assay predicted that 13f was able to cross the BBB. In summary, 13f might be a promising multi-target-directed ligand for the treatment of AD.
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Affiliation(s)
- Lailiang Qu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Limei Ji
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Cheng Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Heng Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Shang Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Wan Peng
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Fucheng Yin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Dehua Lu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Xingchen Liu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
| | - Xiaobing Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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202
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Dwivedi S, Kushalan S, Paithankar JG, D'Souza LC, Hegde S, Sharma A. Environmental toxicants, oxidative stress and health adversities: interventions of phytochemicals. J Pharm Pharmacol 2021; 74:516-536. [PMID: 33822130 DOI: 10.1093/jpp/rgab044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/17/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Oxidative stress is the most common factor mediating environmental chemical-induced health adversities. Recently, an exponential rise in the use of phytochemicals as an alternative therapeutics against oxidative stress-mediated diseases has been documented. Due to their free radical quenching property, plant-derived natural products have gained substantial attention as a therapeutic agent in environmental toxicology. The present review aimed to describe the therapeutic role of phytochemicals in mitigating environmental toxicant-mediated sub-cellular and organ toxicities via controlling cellular antioxidant response. METHODS The present review has covered the recently related studies, mainly focussing on the free radical scavenging role of phytochemicals in environmental toxicology. KEY FINDINGS In vitro and in vivo studies have reported that supplementation of antioxidant-rich compounds can ameliorate the toxicant-induced oxidative stress, thereby improving the health conditions. Improving the cellular antioxidant pool has been considered as a mode of action of phytochemicals. However, the other cellular targets of phytochemicals remain uncertain. CONCLUSIONS Knowing the therapeutic value of phytochemicals to mitigate the chemical-induced toxicity is an initial stage; mechanistic understanding needs to decipher for development as therapeutics. Moreover, examining the efficacy of phytochemicals against mixer toxicity and identifying the bioactive molecule are major challenges in the field.
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Affiliation(s)
- Shiwangi Dwivedi
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
| | - Sharanya Kushalan
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Bioresource and Biotechnology, Deralakatte, Mangaluru, India
| | - Jagdish Gopal Paithankar
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
| | - Leonard Clinton D'Souza
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
| | - Smitha Hegde
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Bioresource and Biotechnology, Deralakatte, Mangaluru, India
| | - Anurag Sharma
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
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203
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Beneficial Role of Carica papaya Extracts and Phytochemicals on Oxidative Stress and Related Diseases: A Mini Review. BIOLOGY 2021; 10:biology10040287. [PMID: 33916114 PMCID: PMC8066973 DOI: 10.3390/biology10040287] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 02/07/2023]
Abstract
Simple Summary This review highlights the medicinal benefits of a natural remedy, the Carica papaya extracts and its phytochemicals. In this review, the potential of Carica papaya against various conditions, including cancer, inflammation, aging, healing of the skin, and lifelong diseases has been summarized and discussed. In short, more research and development should focus on this natural remedy that can potentially act as a prophylaxis against chronic diseases. Abstract Oxidative stress is a result of disruption in the balance between antioxidants and pro-oxidants in which subsequently impacting on redox signaling, causing cell and tissue damages. It leads to a range of medical conditions including inflammation, skin aging, impaired wound healing, chronic diseases and cancers but these conditions can be managed properly with the aid of antioxidants. This review features various studies to provide an overview on how Carica papaya help counteract oxidative stress via various mechanisms of action closely related to its antioxidant properties and eventually improving the management of various oxidative stress-related health conditions. Carica papaya is a topical plant species discovered to contain high amounts of natural antioxidants that can usually be found in their leaves, fruits and seeds. It contains various chemical compounds demonstrate significant antioxidant properties including caffeic acid, myricetin, rutin, quercetin, α-tocopherol, papain, benzyl isothiocyanate (BiTC), and kaempferol. Therefore, it can counteract pro-oxidants via a number of signaling pathways that either promote the expression of antioxidant enzymes or reduce ROS production. These signaling pathways activate the antioxidant defense mechanisms that protect the body against both intrinsic and extrinsic oxidative stress. To conclude, Carica papaya can be incorporated into medications or supplements to help manage the health conditions driven by oxidative stress and further studies are needed to investigate the potential of its chemical components to manage various chronic diseases.
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204
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Zhang X, Ma C, Sun L, He Z, Feng Y, Li X, Gan J, Chen X. Effect of policosanol from insect wax on amyloid β-peptide-induced toxicity in a transgenic Caenorhabditis elegans model of Alzheimer's disease. BMC Complement Med Ther 2021; 21:103. [PMID: 33785017 PMCID: PMC8011155 DOI: 10.1186/s12906-021-03278-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 03/17/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Alzheimer's disease (AD), an age-related neurodegenerative disorder and a serious public health concern, is mainly caused by β-amyloid (Aβ)-induced toxicity. Currently, a limited number of drugs are effective against AD, and only a few are used for its treatment. According to traditional Chinese medicine, white wax is mainly composed of policosanol, hexacosanol, and octacosanol. Policosanol has been shown to reduce lipid levels in blood and alleviate the symptoms associated with diabetic complications and neurodegenerative disorders, such as Parkinson's disease and AD. However, the efficacy of policosanol depends on the purity and composition of the preparation, and the therapeutic efficacy of policosanol derived from insect wax (PIW) in AD is unknown. METHODS Here, we identified the main components of PIW and investigated the effects of PIW on Aβ-induced toxicity and life-span in a transgenic Caenorhabditis elegans model of AD, CL4176. Furthermore, we estimated the expression of amyloid precursor-like protein (apl-1) and the genes involved in various pathways associated with longevity and alleviation of AD-related symptoms in PIW-fed CL4176. RESULTS PIW mainly consists of tetracosanol, hexacosanol, octacosanol, and triacontanol; it could decrease the Aβ-induced paralysis rate from 86.87 to 66.97% (P < 0.01) and extend the life-span from 6.2 d to 7.8 d (P < 0.001) in CL4176 worms. Furthermore, PIW downregulated apl-1, a gene known to be associated with the levels of Aβ deposits in C. elegans. Additionally, our results showed that PIW modulated the expression of genes associated with longevity-related pathways such as heat shock response, anti-oxidative stress, and glutamine cysteine synthetase. CONCLUSION Our findings suggest that PIW may be a potential therapeutic agent for the prevention and treatment of AD. However, its effects on murine models and patients with AD need to be explored further.
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Affiliation(s)
- Xin Zhang
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China
| | - Chenjing Ma
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China
| | - Long Sun
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China
| | - Zhao He
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China
| | - Ying Feng
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China.
| | - Xian Li
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China
| | - Jin Gan
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China
| | - Xiaoming Chen
- The Key Laboratory of Cultivating and Utilization of Resource Insects of State Forestry Administration, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, 650224, China
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205
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Zhang L, Yu H, Tu Q, He Q, Huang N. New Approaches for Hydrogen Therapy of Various Diseases. Curr Pharm Des 2021; 27:636-649. [PMID: 33308113 DOI: 10.2174/1381612826666201211114141] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 10/02/2020] [Indexed: 11/22/2022]
Abstract
Hydrogen therapy has recently received increasing attention as an emerging and promising therapeutic technology due to its selective antioxidant property and cell energy regulatory capability in vivo. To solve the low solubility issue of hydrogen, a variety of nanomaterials and devices for hydrogen supply have recently been developed, aiming to increase the concentration of hydrogen in the specific disease site and realize controlled hydrogen release and combined treatment. In this review, we mainly focus on the latest advances in using hydrogen-generating devices and nanomaterials for hydrogen therapy. These developments include sustained release of H2, controlled release of H2, versatile modalities of synergistic therapy, etc. Also, bio-safety issues and challenges are discussed to further promote the clinical applications of hydrogen therapy and the development of hydrogen medicine.
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Affiliation(s)
- Lei Zhang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Han Yu
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Qiufen Tu
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Qianjun He
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Nan Huang
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
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206
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Kim MH, Kim DY, Lee HJ, Park YH, Huh JW, Lee DS. Comparison of the protective effect of cytosolic and mitochondrial Peroxiredoxin 5 against glutamate-induced neuronal cell death. Redox Rep 2021; 26:53-61. [PMID: 33719938 PMCID: PMC7971343 DOI: 10.1080/13510002.2021.1901028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objectives: Although glutamate is an essential factor in the neuronal system, excess glutamate can produce excitotoxicity. We previously reported that Peroxiredoxin 5 (Prx5) protects neuronal cells from glutamate toxicity via its antioxidant effects. However, it is unclear whether cytosolic or mitochondrial Prx5 provides greater neuroprotection. Here, we investigated differences in the neuroprotective effects of cytosolic and mitochondrial Prx5. Methods: We analyzed patterns of cytosolic and mitochondrial H2O2 generation in glutamate toxicity using HyPer protein. And then, we confirmed the change of intracellular ROS level and apoptosis with respective methods. The mitochondrial dynamics was assessed with confocal microscope imaging and western blotting. Results: We found that the level of mitochondrial H2O2 greatly increased compared to cytosolic H2O2 and it affected cytosolic H2O2 generation after glutamate treatment. In addition, we confirmed that mitochondrial Prx5 provides more effective neuroprotection than cytosolic Prx5. Discussion: Overall, our study reveals the mechanisms of cytosolic and mitochondrial ROS in glutamate toxicity. Our findings suggest that mitochondrial ROS and Prx5 are attractive therapeutic targets and that controlling these factors be useful for the prevention of neurodegenerative diseases.
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Affiliation(s)
- Mi Hye Kim
- School of Life sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea.,College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Da Yeon Kim
- Department of Physiology, Stem Cell Research Center, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Hong Jun Lee
- College of Medicine, Chungbuk National University, Cheongju, Republic of Korea.,Research Institute, e-biogen Inc., Seoul, Republic of Korea
| | - Young-Ho Park
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Jae-Won Huh
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Dong-Seok Lee
- School of Life sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea.,College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
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207
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Novel Donepezil-Arylsulfonamide Hybrids as Multitarget-Directed Ligands for Potential Treatment of Alzheimer's Disease. Molecules 2021; 26:molecules26061658. [PMID: 33809771 PMCID: PMC8002323 DOI: 10.3390/molecules26061658] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/03/2021] [Accepted: 03/11/2021] [Indexed: 11/17/2022] Open
Abstract
Alzheimer’s disease (AD) is one of the most devastating neurodegenerative disorders, characterized by multiple pathological features. Therefore, multi-target drug discovery has been one of the most active fields searching for new effective anti-AD therapies. Herein, a series of hybrid compounds are reported which were designed and developed by combining an aryl-sulfonamide function with a benzyl-piperidine moiety, the pharmacophore of donepezil (a current anti-AD acetylcholinesterase AChE inhibitor drug) or its benzyl-piperazine analogue. The in vitro results indicate that some of these hybrids achieve optimized activity towards two main AD targets, by displaying excellent AChE inhibitory potencies, as well as the capability to prevent amyloid-β (Aβ) aggregation. Some of these hybrids also prevented Aβ-induced cell toxicity. Significantly, drug-like properties were predicted, including for blood-brain permeability. Compound 9 emerged as a promising multi-target lead compound (AChE inhibition (IC50 1.6 μM); Aβ aggregation inhibition 60.7%). Overall, this family of hybrids is worthy of further exploration, due to the wide biological activity of sulfonamides.
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208
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Salcedo C, Wagner A, Andersen JV, Vinten KT, Waagepetersen HS, Schousboe A, Freude KK, Aldana BI. Downregulation of GABA Transporter 3 (GAT3) is Associated with Deficient Oxidative GABA Metabolism in Human Induced Pluripotent Stem Cell-Derived Astrocytes in Alzheimer's Disease. Neurochem Res 2021; 46:2676-2686. [PMID: 33710537 DOI: 10.1007/s11064-021-03276-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/15/2021] [Accepted: 02/15/2021] [Indexed: 10/21/2022]
Abstract
Alterations in neurotransmitter homeostasis, primarily of glutamate and GABA, is strongly implicated in the pathophysiology of Alzheimer's disease (AD). Homeostasis at the synapse is maintained by neurotransmitter recycling between neurons and astrocytes. Astrocytes support neuronal transmission through glutamine synthesis, which can be derived from oxidative metabolism of GABA. However, the precise implications of astrocytic GABA metabolism in AD remains elusive. The aim of this study was to investigate astrocytic GABA metabolism in AD pathology implementing human induced pluripotent stem cells derived astrocytes. Metabolic mapping of GABA was performed with [U-13C]GABA stable isotopic labeling using gas chromatography coupled to mass spectrometry (GC-MS). Neurotransmitter and amino acid content was quantified via high performance liquid chromatography (HPLC) and protein expression was investigated by Western blot assay. Cell lines carrying mutations in either amyloid precursor protein (APP) or presenilin1 (PSEN-1) were used as AD models and were compared to a control cell line of the same genetic background. AD astrocytes displayed a reduced oxidative GABA metabolism mediated by a decreased uptake capacity of GABA, as GABA transporter 3 (GAT3) was downregulated in AD astrocytes compared to the controls. Interestingly, the carbon backbone of GABA in AD astrocytes was utilized to a larger extent to support glutamine synthesis compared to control astrocytes. The results strongly indicate alterations in GABA uptake and metabolism in AD astrocytes linked to reduced GABA transporter expression, hereby contributing further to neurotransmitter disturbances.
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Affiliation(s)
- Claudia Salcedo
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Antonie Wagner
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Jens V Andersen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Kasper Tore Vinten
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Helle S Waagepetersen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Arne Schousboe
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Kristine K Freude
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870, Frederiksberg, Denmark
| | - Blanca I Aldana
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark.
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209
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Pyrazole Scaffold Synthesis, Functionalization, and Applications in Alzheimer's Disease and Parkinson's Disease Treatment (2011-2020). Molecules 2021; 26:molecules26051202. [PMID: 33668128 PMCID: PMC7956461 DOI: 10.3390/molecules26051202] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 11/17/2022] Open
Abstract
The remarkable prevalence of pyrazole scaffolds in a versatile array of bioactive molecules ranging from apixaban, an anticoagulant used to treat and prevent blood clots and stroke, to bixafen, a pyrazole-carboxamide fungicide used to control diseases of rapeseed and cereal plants, has encouraged both medicinal and organic chemists to explore new methods in developing pyrazole-containing compounds for different applications. Although numerous synthetic strategies have been developed in the last 10 years, there has not been a comprehensive overview of synthesis and the implication of recent advances for treating neurodegenerative disease. This review first presents the advances in pyrazole scaffold synthesis and their functionalization that have been published during the last decade (2011-2020). We then narrow the focus to the application of these strategies in the development of therapeutics for neurodegenerative diseases, particularly for Alzheimer's disease (AD) and Parkinson's disease (PD).
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210
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Protein Expression of Angiotensin-Converting Enzyme 2 (ACE2) is Upregulated in Brains with Alzheimer's Disease. Int J Mol Sci 2021; 22:ijms22041687. [PMID: 33567524 PMCID: PMC7914443 DOI: 10.3390/ijms22041687] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/30/2021] [Accepted: 02/04/2021] [Indexed: 12/19/2022] Open
Abstract
Alzheimer’s disease is a chronic neurodegenerative disorder and represents the main cause of dementia globally. Currently, the world is suffering from the coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a virus that uses angiotensin-converting enzyme 2 (ACE2) as a receptor to enter the host cells. In COVID-19, neurological manifestations have been reported to occur. The present study demonstrates that the protein expression level of ACE2 is upregulated in the brain of patients with Alzheimer’s disease. The increased ACE2 expression is not age-dependent, suggesting the direct relationship between Alzheimer’s disease and ACE2 expression. Oxidative stress has been implicated in the pathogenesis of Alzheimer’s disease, and brains with the disease examined in this study also exhibited higher carbonylated proteins, as well as an increased thiol oxidation state of peroxiredoxin 6 (Prx6). A moderate positive correlation was found between the increased ACE2 protein expression and oxidative stress in brains with Alzheimer’s disease. In summary, the present study reveals the relationships between Alzheimer’s disease and ACE2, the receptor for SARS-CoV-2. These results suggest the importance of carefully monitoring patients with both Alzheimer’s disease and COVID-19 in order to identify higher viral loads in the brain and long-term adverse neurological consequences.
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211
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Živković L, Bajić V, Čabarkapa-Pirković A, Dekanski D, Forbes-Hernández TY, Zlatković-Švenda M, Perry G, Spremo-Potparević B. Strawberry (Fragaria ananassa duch.) Alba extract attenuates DNA damage in lymphocytes of patients with Alzheimer's disease. J Food Biochem 2021; 45:e13637. [PMID: 33547659 DOI: 10.1111/jfbc.13637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/23/2020] [Accepted: 01/13/2021] [Indexed: 11/29/2022]
Abstract
Increased levels of oxidative stress and oxidative DNA damage are common features in the pathology of Alzheimer's disease (AD) found in neurons and peripheral cells like peripheral blood lymphocytes (PBL). Natural products such as strawberry cultivar Alba are an important source of bioactive nutrients that could help in lowering both the oxidative stress and DNA damage levels. The objective was to estimate the effects of Alba extract on DNA damage in peripheral blood lymphocytes of sporadic AD (aged 60-84 years) patients, and healthy elderly (aged 69-83 years) and young (aged 21-30 years) individuals in in vitro conditions. Comet assay was used as a sensitive technique for the evaluation of PBL DNA damage levels. Reduction of basal DNA damage level in PBL was shown in the young group after the incubation with Alba extract ranging from 25 to 200 μg/ml, with 100 μg/ml being the most effective concentration. Selected Alba extract of 100 μg/ml was further used for PBL treatment of AD and healthy elderly age matched group, displaying potential to significantly attenuate DNA damage levels in both groups (p < .05). Alba extract displayed biological activity against oxidative DNA damage, suggesting that its functional ingredients may have beneficial health effects. PRACTICAL APPLICATIONS: The data obtained in this preliminary study displayed that strawberry Alba extract is efficient against DNA damage induced by endogenous and exogenous oxidative stress in peripheral blood lymphocytes of Alzheimer`s disease in vitro. An active area of future research of Alba cultivar should be to determine the trials in in vivo systems. Our findings also suggest that Alba cultivar's functional ingredients potentially may have beneficial health effects in AD.
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Affiliation(s)
- Lada Živković
- Department of Pathobiology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Vladan Bajić
- The Laboratory for Radiobiology and Molecular Genetics, Institute for Nuclear Research "Vinča", University of Belgrade, Belgrade, Serbia
| | | | | | - Tamara Yuliett Forbes-Hernández
- Nutrition and Food Science Group, Department of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo, Spain
| | - Mirjana Zlatković-Švenda
- Clinical Rheumatology, Institute of Rheumatology, University of Belgrade School of Medicine, Belgrade, Serbia
| | - George Perry
- College of Sciences, The University of Texas, UTSA, San Antonio, TX, USA
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Fracassi A, Marcatti M, Zolochevska O, Tabor N, Woltjer R, Moreno S, Taglialatela G. Oxidative Damage and Antioxidant Response in Frontal Cortex of Demented and Nondemented Individuals with Alzheimer's Neuropathology. J Neurosci 2021; 41:538-554. [PMID: 33239403 PMCID: PMC7821866 DOI: 10.1523/jneurosci.0295-20.2020] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 10/05/2020] [Accepted: 10/07/2020] [Indexed: 11/21/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by progressive neurodegeneration in the cerebral cortex, histopathologically hallmarked by amyloid β (Aβ) extracellular plaques and intracellular neurofibrillary tangles, constituted by hyperphosphorylated tau protein. Correlation between these pathologic features and dementia has been challenged by the emergence of "nondemented with Alzheimer's neuropathology" (NDAN) individuals, cognitively intact despite displaying pathologic features of AD. The existence of these subjects suggests that some unknown mechanisms are triggered to resist Aβ-mediated detrimental events. Aβ accumulation affects mitochondrial redox balance, increasing oxidative stress status, which in turn is proposed as a primary culprit in AD pathogenesis. To clarify the relationship linking Aβ, oxidative stress, and cognitive impairment, we performed a comparative study on AD, NDAN, and aged-matched human postmortem frontal cortices of either sex. We quantitatively analyzed immunofluorescence distribution of oxidative damage markers, and of SOD2 (superoxide dismutase 2), PGC1α [peroxisome proliferator-activated receptor (PPAR) γ-coactivator 1α], PPARα, and catalase as key factors in antioxidant response, as well as the expression of miRNA-485, as a PGC1α upstream regulator. Our results confirm dramatic redox imbalance, associated with impaired antioxidant defenses in AD brain. By contrast, NDAN individuals display low oxidative damage, which is associated with high levels of scavenging systems, possibly resulting from a lack of PGC1α miRNA-485-related inhibition. Comparative analyses in neurons and astrocytes further highlighted cell-specific mechanisms to counteract redox imbalance. Overall, our data emphasize the importance of transcriptional and post-transcriptional regulation of antioxidant response in AD. This suggests that an efficient PGC1α-dependent "safety mechanism" may prevent Aβ-mediated oxidative stress, supporting neuroprotective therapies aimed at ameliorating defects in antioxidant response pathways in AD patients.
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Affiliation(s)
- Anna Fracassi
- Mitchell Center for Neurodegenerative Diseases, Department of Neurology, University of Texas Medical Branch (UTMB), Galveston, Texas 77550
| | - Michela Marcatti
- Mitchell Center for Neurodegenerative Diseases, Department of Neurology, University of Texas Medical Branch (UTMB), Galveston, Texas 77550
| | - Olga Zolochevska
- Mitchell Center for Neurodegenerative Diseases, Department of Neurology, University of Texas Medical Branch (UTMB), Galveston, Texas 77550
| | - Natalie Tabor
- Neuroscience Summer Undergraduate Program, University of Texas Medical Branch, Galveston, Texas 77555
| | - Randall Woltjer
- Department of Pathology, Oregon Health and Science University, Portland, Oregon 97239-3098
| | - Sandra Moreno
- Department of Science, LIME, University Roma Tre, 00146 Rome, Italy
| | - Giulio Taglialatela
- Mitchell Center for Neurodegenerative Diseases, Department of Neurology, University of Texas Medical Branch (UTMB), Galveston, Texas 77550
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213
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Poliseno V, Chaves S, Brunetti L, Loiodice F, Carrieri A, Laghezza A, Tortorella P, Magalhães JD, Cardoso SM, Santos MA, Piemontese L. Derivatives of Tenuazonic Acid as Potential New Multi-Target Anti-Alzheimer's Disease Agents. Biomolecules 2021; 11:111. [PMID: 33467709 PMCID: PMC7830597 DOI: 10.3390/biom11010111] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 12/17/2022] Open
Abstract
Alzheimer's disease (AD) is generally recognized as a multifactorial neurodegenerative pathology with an increasing impact on society. Tenuazonic acid (TA) is a natural compound that was recently identified as a potential multitarget ligand with anti-cholinesterase, anti-amyloidogenic and antioxidant activities. Using its structure as a chemical scaffold, we synthesized and evaluated new derivatives (1-5), including tenuazonic-donepezil (TA-DNP) hybrids (4 and 5) due to the clinical importance of the anti-AD drug donepezil. These novel compounds all achieved activity in the micromolar range towards all selected targets and demonstrated to be potentially orally absorbed. Moreover, a selected compound (1) was further investigated as a chelating agent towards copper (II), zinc (II) and iron (III) and showed good chelating ability (pFe = 16.6, pCu = 11.6, pZn = 6.0 at pH 7.4). Therefore, the TA motif can be considered an interesting building block in the search for innovative multi-functional anti-neurodegenerative drugs, as exemplified by hybrid 5, a promising non-cytotoxic lead compound adequate for the early stages of AD, and capable of ameliorating the oxidative status of SH-SY5Y human neuroblastoma cells.
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Affiliation(s)
- Viviana Poliseno
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (V.P.); (L.B.); (F.L.); (A.C.); (A.L.); (P.T.)
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
| | - Sílvia Chaves
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
| | - Leonardo Brunetti
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (V.P.); (L.B.); (F.L.); (A.C.); (A.L.); (P.T.)
| | - Fulvio Loiodice
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (V.P.); (L.B.); (F.L.); (A.C.); (A.L.); (P.T.)
| | - Antonio Carrieri
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (V.P.); (L.B.); (F.L.); (A.C.); (A.L.); (P.T.)
| | - Antonio Laghezza
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (V.P.); (L.B.); (F.L.); (A.C.); (A.L.); (P.T.)
| | - Paolo Tortorella
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (V.P.); (L.B.); (F.L.); (A.C.); (A.L.); (P.T.)
| | - João D. Magalhães
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; (J.D.M.); (S.M.C.)
| | - Sandra M. Cardoso
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; (J.D.M.); (S.M.C.)
- Institute of Molecular and Cell Biology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
| | - M. Amélia Santos
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
| | - Luca Piemontese
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (V.P.); (L.B.); (F.L.); (A.C.); (A.L.); (P.T.)
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214
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Wu W, He X, Xie S, Li B, Chen J, Qu Y, Li B, Lei M, Liu X. Protective effects of Huang-Lian-Jie-Du-Tang against A β25-35-induced memory deficits and oxidative stress in rats. J Int Med Res 2021; 48:300060519893859. [PMID: 32223685 PMCID: PMC7133406 DOI: 10.1177/0300060519893859] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Objective Huang-Lian-Jie-Du-Tang (HLJDT), a traditional Chinese medicine, improves cognitive ability in rat models of Alzheimer’s disease (AD). The objective of this study was to evaluate the protective effects of HLJDT on learning and memory impairment that are caused by Aβ25–35. Methods Rats were randomly assigned to the following groups: control (water), Aβ25–35, donepezil hydrochloride 1.05 mg/kg, HLJDT 6 g/kg, HLJDT 3 g/kg, and HLJDT 1.5 g/kg and the corresponding drugs were administered for 28 days by oral gavage. HLJDT for the prevention of Aβ25–35-induced injury in rats and the underlying mechanisms were assessed. Aβ25–35 and amyloid precursor protein (APP) levels were measured in the hippocampal specimens. Total superoxide dismutase (T-SOD), glutathione (GSH), and malondialdehyde (MDA) levels in the hippocampus were also measured. The ultrastructure of CA1 hippocampal region was observed using electron microscopy. Results HLJDT treatment ameliorated impaired learning and memory significantly, decreased Aβ25–35, and APP levels in the hippocampus, increased T-SOD and GSH activity and decreased the MDA concentration, and alleviated the nuclear and cytoplasmic abnormalities of the hippocampal CA 1 region that were induced by Aβ25–35 injection. Conclusions HLJDT might decrease hippocampal vulnerability to Aβ25–35, suggesting its potential neuroprotective effect in AD.
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Affiliation(s)
- Wenbin Wu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Xiaojing He
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Shuling Xie
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Bin Li
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Jinxin Chen
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Yanqin Qu
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Baiyang Li
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Ming Lei
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Xuehui Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
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215
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Siddiqui A, Akhtar S, Shah Z, Othman I, Kumari Y. Inflammation Drives Alzheimer's Disease: Emphasis on 5-lipoxygenase Pathways. Curr Neuropharmacol 2021; 19:885-895. [PMID: 32972344 PMCID: PMC8686299 DOI: 10.2174/1570159x18666200924122732] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 11/22/2022] Open
Abstract
It is a known fact that inflammation affects several physiological processes, including the functioning of the central nervous system. Additionally, impairment of lipid mechanisms/pathways have been associated with a number of neurodegenerative disorders and Alzheimer's Disease (AD) is one of them. However, much attention has been given to the link between tau and beta- amyloid hypothesis in AD pathogenesis/prognosis. Increasing evidences suggest that biologically active lipid molecules could influence the pathophysiology of AD via a different mechanism of inflammation. This review intends to highlight the role of inflammatory responses in the context of AD with the emphasis on biochemical pathways of lipid metabolism enzyme, 5-lipoxygenase (5- LO).
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Affiliation(s)
- Aisha Siddiqui
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Selangor, Malaysia
| | - Sayeed Akhtar
- Department of Clinical Pharmacy, College of Pharmacy, King Khalid University, Abha-21974, Kingdom of Saudi Arabia
| | - Zahoor Shah
- Department of Medicinal and Biological Chemistry, University of Toledo, 43614, 3000 Arlington Avenue, Toledo, Ohio, USA
| | - Iekhsan Othman
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Selangor, Malaysia
| | - Yatinesh Kumari
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Selangor, Malaysia
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216
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Onyango IG, Bennett JP, Stokin GB. Regulation of neuronal bioenergetics as a therapeutic strategy in neurodegenerative diseases. Neural Regen Res 2021; 16:1467-1482. [PMID: 33433460 PMCID: PMC8323696 DOI: 10.4103/1673-5374.303007] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis are a heterogeneous group of debilitating disorders with multifactorial etiologies and pathogeneses that manifest distinct molecular mechanisms and clinical manifestations with abnormal protein dynamics and impaired bioenergetics. Mitochondrial dysfunction is emerging as an important feature in the etiopathogenesis of these age-related neurodegenerative diseases. The prevalence and incidence of these diseases is on the rise with the increasing global population and average lifespan. Although many therapeutic approaches have been tested, there are currently no effective treatment routes for the prevention or cure of these diseases. We present the current status of our knowledge and understanding of the involvement of mitochondrial dysfunction in these diseases and highlight recent advances in novel therapeutic strategies targeting neuronal bioenergetics as potential approach for treating these diseases.
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Affiliation(s)
- Isaac G Onyango
- Center for Translational Medicine, International Clinical Research Centre (ICRC), St. Anne's University Hospital, Brno, Czech Republic
| | - James P Bennett
- Neurodegeneration Therapeutics, 3050A Berkmar Drive, Charlottesville, VA, USA
| | - Gorazd B Stokin
- Center for Translational Medicine, International Clinical Research Centre (ICRC), St. Anne's University Hospital, Brno, Czech Republic
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217
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Wouk J, Rechenchoski DZ, Rodrigues BCD, Ribelato EV, Faccin-Galhardi LC. Viral infections and their relationship to neurological disorders. Arch Virol 2021; 166:733-753. [PMID: 33502593 PMCID: PMC7838016 DOI: 10.1007/s00705-021-04959-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/27/2020] [Indexed: 01/26/2023]
Abstract
The chronic dysfunction of neuronal cells, both central and peripheral, a characteristic of neurological disorders, may be caused by irreversible damage and cell death. In 2016, more than 276 million cases of neurological disorders were reported worldwide. Moreover, neurological disorders are the second leading cause of death. Generally, the etiology of neurological diseases is not fully understood. Recent studies have related the onset of neurological disorders to viral infections, which may cause neurological symptoms or lead to immune responses that trigger these pathological signs. Currently, this relationship is mostly based on epidemiological data on infections and seroprevalence of patients who present with neurological disorders. The number of studies aiming to elucidate the mechanism of action by which viral infections may directly or indirectly contribute to the development of neurological disorders has been increasing over the years but these studies are still scarce. Comprehending the pathogenesis of these diseases and exploring novel theories may favor the development of new strategies for diagnosis and therapy in the future. Therefore, the objective of the present study was to review the main pieces of evidence for the relationship between viral infection and neurological disorders such as Alzheimer's disease, Parkinson's disease, Guillain-Barré syndrome, multiple sclerosis, and epilepsy. Viruses belonging to the families Herpesviridae, Orthomyxoviridae, Flaviviridae, and Retroviridae have been reported to be involved in one or more of these conditions. Also, neurological symptoms and the future impact of infection with SARS-CoV-2, a member of the family Coronaviridae that is responsible for the COVID-19 pandemic that started in late 2019, are reported and discussed.
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Affiliation(s)
- Jéssica Wouk
- Post-Graduation Program of Pharmaceutical Science, Midwest State University, CEDETEG Campus, Guarapuava, Paraná Brazil
| | | | | | - Elisa Vicente Ribelato
- Department of Microbiology, Biological Science Center, Londrina State University, Londrina, Paraná Brazil
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218
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Tao LX, Ji SS, Szalóki D, Kovács T, Mándi A, Antus S, Ding X, Kurtán T, Zhang HY. An optically active isochroman-2H-chromene conjugate potently suppresses neuronal oxidative injuries associated with the PI3K/Akt and MAPK signaling pathways. Acta Pharmacol Sin 2021; 42:36-44. [PMID: 32393798 PMCID: PMC7921582 DOI: 10.1038/s41401-020-0391-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 02/23/2020] [Indexed: 12/18/2022] Open
Abstract
Increasing evidence suggests that the use of potent neuroprotective agents featured with novel pharmacological mechanism would offer a promising strategy to delay or prevent the progression of neurodegeneration. Here, we provide the first demonstration that the chiral nonracemic isochroman-2H-chromene conjugate JE-133, a novel synthetic 1,3-disubstituted isochroman derivative, possesses superior neuroprotective effect against oxidative injuries. Pretreatment with JE-133 (1-10 μM) concentration-dependently prevented H2O2-induced cell death in SH-SY5Y neuroblastoma cells and rat primary cortical neurons. Pretreatment with JE-133 significantly alleviated H2O2-induced apoptotic changes. These protective effects could not be simply attributed to the direct free radical scavenging as JE-133 had moderate activity in reducing DPPH free radical. Further study revealed that pretreatment with JE-133 (10 μM) significantly decreased the phosphorylation of MAPK pathway proteins, especially ERK and P38, in the neuronal cells. In addition, blocking PI3K/Akt pathway using LY294002 partially counteracted the cell viability-enhancing effect of JE-133. We conclude that JE-133 exerts neuroprotection associated with dual regulative mechanisms and consequently activating cell survival and inhibiting apoptotic changes, which may provide important clues for the development of effective neuroprotective drug lead/candidate.
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Affiliation(s)
- Ling-Xue Tao
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Sha-Sha Ji
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Dóra Szalóki
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, H-4002, Debrecen, Hungary
| | - Tibor Kovács
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, H-4002, Debrecen, Hungary
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, H-4002, Debrecen, Hungary
| | - Sándor Antus
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, H-4002, Debrecen, Hungary
| | - Xun Ding
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, H-4002, Debrecen, Hungary.
| | - Hai-Yan Zhang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
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219
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Przybyłowska M, Dzierzbicka K, Kowalski S, Chmielewska K, Inkielewicz-Stepniak I. Therapeutic Potential of Multifunctional Derivatives of Cholinesterase Inhibitors. Curr Neuropharmacol 2021; 19:1323-1344. [PMID: 33342413 PMCID: PMC8719290 DOI: 10.2174/1570159x19666201218103434] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/07/2020] [Accepted: 11/29/2020] [Indexed: 11/22/2022] Open
Abstract
The aim of this work is to review tacrine analogues from the last three years, which were not included in the latest review work, donepezil and galantamine hybrids from 2015 and rivastigmine derivatives from 2014. In this account, we summarize the efforts toward the development and characterization of non-toxic inhibitors of cholinesterases based on mentioned drugs with various interesting additional properties such as antioxidant, decreasing β-amyloid plaque aggregation, nitric oxide production, pro-inflammatory cytokines release, monoamine oxidase-B activity, cytotoxicity and oxidative stress in vitro and in animal model that classify these hybrids as potential multifunctional therapeutic agents for Alzheimer's disease. Moreover, herein, we have described the cholinergic hypothesis, mechanisms of neurodegeneration and current pharmacotherapy of Alzheimer's disease based on the restoration of cholinergic function through blocking enzymes that break down acetylcholine.
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Affiliation(s)
- Maja Przybyłowska
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Krystyna Dzierzbicka
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Szymon Kowalski
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Klaudia Chmielewska
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Iwona Inkielewicz-Stepniak
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
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220
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Kong Y, Liu K, Hua T, Zhang C, Sun B, Guan Y. PET Imaging of Neutrophils Infiltration in Alzheimer's Disease Transgenic Mice. Front Neurol 2020; 11:523798. [PMID: 33362678 PMCID: PMC7758535 DOI: 10.3389/fneur.2020.523798] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 10/29/2020] [Indexed: 12/04/2022] Open
Abstract
Neutrophils are important components in the innate immune system. Neutrophil hyperactivation is regarded as a characteristic of Alzheimer's disease (AD). But in vivo imaging tools observing neutrophil activity in AD dynamically is lacking. This study aimed to identify neutrophil infiltration in AD transgenic mice. We used the AD triple-mutant transgenic mouse model and identified the genotype with RT-PCR. Behavioral experiments including an open-field test, a Morris water maze, and a Y-maze test were performed to evaluate the status of this AD model. 18F-AV45, 18F-PM-PBB3, 68Ga-PEG-cFLFLFK, and 18F-DPA714 were synthesized according to previous reports. We employed microPET to detect tracer uptake in the AD model and the control mice at different stages. Western blotting was used to observe the expression of functional proteins. We proved the successful establishment of AD models by RT-PCR, behavioral tests, and 18F-AV45 and 18F-PM-PBB3 PET imaging. We found an increased neutrophil accumulation in the brains of the AD mice through 68Ga-PEG-cFLFLFK PET imaging and Western blot assay. Our studies also demonstrated an elevated level of CAP37, which is produced by neutrophils, in the AD brain, and treatment with CAP37 promoted the expression of Iba1, iNOS, and COX-2 in BV2 cultures. Furthermore, our 18F-DPA714 PET imaging studies verified the raised activation of microglia in the brain of transgenic AD mice. Collectively, our findings indicate the increased activity of neutrophils in the brain and heart of AD model mice, 68Ga-PEG-cFLFLFK PET imaging represents a sensitive method to observe the status of neutrophils in AD, and infiltrated neutrophils can induce the activation of microglia by releasing CAP37 and blocking the activity of neutrophils may be beneficial for the control of AD progression.
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Affiliation(s)
- Yanyan Kong
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Kawai Liu
- Department of Mathematics, The Shanghai SMIC Private School, Shanghai, China
| | - Tao Hua
- PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Chencheng Zhang
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bomin Sun
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yihui Guan
- PET Center, Huashan Hospital, Fudan University, Shanghai, China
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221
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Bhatia V, Sharma S. Role of mitochondrial dysfunction, oxidative stress and autophagy in progression of Alzheimer's disease. J Neurol Sci 2020; 421:117253. [PMID: 33476985 DOI: 10.1016/j.jns.2020.117253] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 10/21/2020] [Accepted: 11/24/2020] [Indexed: 12/18/2022]
Abstract
Alzheimer's disease (AD) is the most common form of dementia. The pathological hallmarks of AD are amyloid plaques [aggregates of amyloid beta (A)] and neurofibrillary tangles (aggregates of tau protein). Growing evidence suggests that tau accumulation is pathologically more relevant to the development of neurodegeneration and cognitive decline in AD patients than A plaques. Mitochondrial damage plays an important role in AD. Mitochondrial damage has been related to amyloid-beta or tau pathology or to the presence of specific presenilin-1 mutations. Elevate reactive oxygen species/reactive nitrogen species production and defective mitochondrial dynamic balance has been suggested to be the reason as well as the consequence of AD related pathology. Oxidative stress is a prominent early event in the pathogenesis of AD and is therefore believed to contribute to tau hyperphosphorylation. Several studies have shown that the autophagy pathway in neurons is important under physiological and pathological conditions. Therefore, this pathway plays a crucial role for the degradation of endogenous soluble tau. However, the relationship between mitochondrial dysfunctioning, oxidative stress, autophagy dysregulation, and neuronal cell death in AD remains unclear. Here, we review the latest progress in AD, with a special emphasis on mitochondrial dysfunctioning, oxidative stress, and autophagy. We also discuss the interlink mechanism of these three factors in AD.
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Affiliation(s)
- Vandana Bhatia
- School of Pharmaceutical and Healthcare, CT University, Ludhiana, Punjab, India
| | - Saurabh Sharma
- School of Pharmaceutical Sciences, CT University, Ludhiana, Punjab, India.
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222
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Gromadzka G, Tarnacka B, Flaga A, Adamczyk A. Copper Dyshomeostasis in Neurodegenerative Diseases-Therapeutic Implications. Int J Mol Sci 2020; 21:E9259. [PMID: 33291628 PMCID: PMC7730516 DOI: 10.3390/ijms21239259] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 12/12/2022] Open
Abstract
Copper is one of the most abundant basic transition metals in the human body. It takes part in oxygen metabolism, collagen synthesis, and skin pigmentation, maintaining the integrity of blood vessels, as well as in iron homeostasis, antioxidant defense, and neurotransmitter synthesis. It may also be involved in cell signaling and may participate in modulation of membrane receptor-ligand interactions, control of kinase and related phosphatase functions, as well as many cellular pathways. Its role is also important in controlling gene expression in the nucleus. In the nervous system in particular, copper is involved in myelination, and by modulating synaptic activity as well as excitotoxic cell death and signaling cascades induced by neurotrophic factors, copper is important for various neuronal functions. Current data suggest that both excess copper levels and copper deficiency can be harmful, and careful homeostatic control is important. This knowledge opens up an important new area for potential therapeutic interventions based on copper supplementation or removal in neurodegenerative diseases including Wilson's disease (WD), Menkes disease (MD), Alzheimer's disease (AD), Parkinson's disease (PD), and others. However, much remains to be discovered, in particular, how to regulate copper homeostasis to prevent neurodegeneration, when to chelate copper, and when to supplement it.
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Affiliation(s)
- Grażyna Gromadzka
- Collegium Medicum, Faculty of Medicine, Cardinal Stefan Wyszynski University, Wóycickiego 1/3 Street, 01-938 Warsaw, Poland;
| | - Beata Tarnacka
- Department of Rehabilitation, Eleonora Reicher National Institute of Geriatrics, Rheumatology and Rehabilitation, Rehabilitation Clinic, Medical University of Warsaw, Spartańska 1 Street, 02-637 Warsaw, Poland;
| | - Anna Flaga
- Collegium Medicum, Faculty of Medicine, Cardinal Stefan Wyszynski University, Wóycickiego 1/3 Street, 01-938 Warsaw, Poland;
| | - Agata Adamczyk
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, 02-106 Warsaw, Poland;
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Chadha S, Behl T, Sehgal A, Kumar A, Bungau S. Exploring the role of mitochondrial proteins as molecular target in Alzheimer's disease. Mitochondrion 2020; 56:62-72. [PMID: 33221353 DOI: 10.1016/j.mito.2020.11.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023]
Abstract
Brain is a fully differentiated organ and is sensitive towards oxidative damage of various compounds including lipids, proteins, and DNA that occurs during process of normal aging and is mainly due to its high energy metabolism and reduced activity of anti-oxidative defense mechanism. Mitochondria are dynamic ATP-generating organelles which constitutes cellular functions such as regulation of intracellular calcium, bio-energetic processes, and reduction-oxidation of cells. Such functioning is negatively affected due to the presence of amyloid β peptide (Aβ) which is involved in pathogenesis of Alzheimer disease (AD). Aβ interacts with mitochondria and leads to mitochondrial dysfunction. Mitochondrial dysfunction, abnormal interactions, oxidative stress, and mis-folding of synaptic proteins inside nervous system are explored and regarded as primary or initial features in insurgence of pathology (AD and other neurological disease). The major histopathological hallmarks of AD are characterized by presence of these hallmarks intracellularly, its further progression and exacerbation which leads to excessive accumulation of oligomeric as well as fibrillar-β-amyloid peptides (present extracellularly) and accumulation of neurofibrillary tangles intracellularly. The current review will focus on alterations and variation in mitochondria/mitochondrial DNA (mtDNA) and the rationale for involvement of related abnormalities in pathogenesis of AD.
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Affiliation(s)
- Swati Chadha
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Arun Kumar
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Simona Bungau
- Department of Pharmacy, Faculty of Pharmacy, University of Oradea, Romania
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Sánchez-Sarasúa S, Fernández-Pérez I, Espinosa-Fernández V, Sánchez-Pérez AM, Ledesma JC. Can We Treat Neuroinflammation in Alzheimer's Disease? Int J Mol Sci 2020; 21:E8751. [PMID: 33228179 PMCID: PMC7699542 DOI: 10.3390/ijms21228751] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 02/06/2023] Open
Abstract
Alzheimer's disease (AD), considered the most common type of dementia, is characterized by a progressive loss of memory, visuospatial, language and complex cognitive abilities. In addition, patients often show comorbid depression and aggressiveness. Aging is the major factor contributing to AD; however, the initial cause that triggers the disease is yet unknown. Scientific evidence demonstrates that AD, especially the late onset of AD, is not the result of a single event, but rather it appears because of a combination of risk elements with the lack of protective ones. A major risk factor underlying the disease is neuroinflammation, which can be activated by different situations, including chronic pathogenic infections, prolonged stress and metabolic syndrome. Consequently, many therapeutic strategies against AD have been designed to reduce neuro-inflammation, with very promising results improving cognitive function in preclinical models of the disease. The literature is massive; thus, in this review we will revise the translational evidence of these early strategies focusing in anti-diabetic and anti-inflammatory molecules and discuss their therapeutic application in humans. Furthermore, we review the preclinical and clinical data of nutraceutical application against AD symptoms. Finally, we introduce new players underlying neuroinflammation in AD: the activity of the endocannabinoid system and the intestinal microbiota as neuroprotectors. This review highlights the importance of a broad multimodal approach to treat successfully the neuroinflammation underlying AD.
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Affiliation(s)
| | | | | | - Ana María Sánchez-Pérez
- Neurobiotechnology Group, Department of Medicine, Health Science Faculty, Universitat Jaume I, 12071 Castellón, Spain; (S.S.-S.); (I.F.-P.); (V.E.-F.)
| | - Juan Carlos Ledesma
- Neurobiotechnology Group, Department of Medicine, Health Science Faculty, Universitat Jaume I, 12071 Castellón, Spain; (S.S.-S.); (I.F.-P.); (V.E.-F.)
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225
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Barchiesi A, Bazzani V, Tolotto V, Elancheliyan P, Wasilewski M, Chacinska A, Vascotto C. Mitochondrial Oxidative Stress Induces Rapid Intermembrane Space/Matrix Translocation of Apurinic/Apyrimidinic Endonuclease 1 Protein through TIM23 Complex. J Mol Biol 2020; 432:166713. [PMID: 33197464 DOI: 10.1016/j.jmb.2020.11.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 12/22/2022]
Abstract
Mitochondria are essential cellular organelles that import the majority of proteins to sustain their function in cellular metabolism and homeostasis. Due to their role in oxidative phosphorylation, mitochondria are constantly affected by oxidative stress. Stability of mitochondrial DNA (mtDNA) is essential for mitochondrial physiology and cellular well-being and for this reason mtDNA lesions have to be rapidly recognized and repaired. Base excision repair (BER) is the main pathway responsible for repairing non-helix distorting base lesions both into the nucleus and in mitochondria. Apurinic/Apyrimidinic Endonuclease 1 (APE1) is a key component of BER pathway and the only protein that can recognize and process an abasic (AP) site. Comprehensions of the mechanisms regulating APE1 intracellular trafficking are still fragmentary. In this study we focused our attention on the mitochondrial form of APE1 protein and how oxidative stress induces its translocation to maintain mtDNA integrity. Our data proved that: (i) the rise of mitochondrial ROS determines a very rapid translocation of APE1 from the intermembrane space (IMS) into the matrix; and (ii) TIM23/PAM machinery complex is responsible for the matrix translocation of APE1. Moreover, our data support the hypothesis that the IMS, where the majority of APE1 resides, could represent a sort of storage site for the protein.
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Affiliation(s)
| | | | - Vanessa Tolotto
- Department of Medicine, University of Udine, 33100 Udine, Italy
| | - Praveenraj Elancheliyan
- Laboratory of Mitochondrial Biogenesis, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland; ReMedy International Research Agenda Unit, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland
| | - Michał Wasilewski
- Laboratory of Mitochondrial Biogenesis, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland; ReMedy International Research Agenda Unit, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland
| | - Agnieszka Chacinska
- Laboratory of Mitochondrial Biogenesis, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland; ReMedy International Research Agenda Unit, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland
| | - Carlo Vascotto
- Department of Medicine, University of Udine, 33100 Udine, Italy; Laboratory of Mitochondrial Biogenesis, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland.
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Ellis RJ, Moore DJ, Sundermann EE, Heaton RK, Mehta S, Hulgan T, Samuels D, Fields JA, Letendre SL. Nucleic acid oxidation is associated with biomarkers of neurodegeneration in CSF in people with HIV. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2020; 7:7/6/e902. [PMID: 33055205 PMCID: PMC7577534 DOI: 10.1212/nxi.0000000000000902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 08/31/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To determine whether oxidative stress in virologically suppressed people with HIV (PWH) may contribute to or result from neurodegeneration, we measured 7,8-dihydro-8-oxoguanine (8-oxo-dG), a marker of DNA damage due to oxidative stress, and markers of age-related neurodegeneration, specifically, reduced levels of CSF Aβ-42, and elevated CSF total tau and neurofilament light (NFL). METHODS This cross-sectional study prospectively enrolled participants at 6 US centers in the CNS HIV Antiretroviral Effects Research study. Inclusion criteria included HIV+ with a plasma level of HIV RNA ≤50 copies/mL. Exclusions included significant CNS confounding conditions. Measurements of total tau and Aβ-42 were performed by bead suspension array. NFL and 8-oxo-dG were measured using ELISA. RESULTS Participants were 53 PWH, mean age 55 (±9.3) years, 19% women, and 48% non-Hispanic White. Higher 8-oxo-dG correlated with markers of AD-related neurodegeneration including lower CSF Aβ-42 (r = -0.34; p = 0.012) and higher CSF NFL (r = 0.39; p = 0.0091) and total tau (r = 0.6696; p < 0.0001). Relationships remained after adjusting for demographic variables. Levels of protein carbonyls, a marker of protein oxidation, were not related to neurodegeneration markers. CONCLUSIONS Among virologically suppressed PWH, nucleic acid oxidation was associated with standard CSF biomarkers of neurodegeneration. Potential sources of oxidative stress in PWH include low-level HIV replication, inflammation, mitochondrial dysfunction, and specific antiretroviral drugs. Results suggest that the higher levels of oxidative stress among PWH may play a role in neurodegeneration. CLASSIFICATION OF EVIDENCE This study provides Class II evidence that among virologically suppressed PWH, nucleic acid oxidation is associated with standard CSF biomarkers of neurodegeneration.
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Affiliation(s)
- Ronald J Ellis
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego.
| | - David J Moore
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
| | - Erin E Sundermann
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
| | - Robert K Heaton
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
| | - Sanjay Mehta
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
| | - Todd Hulgan
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
| | - David Samuels
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
| | - Jerel A Fields
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
| | - Scott L Letendre
- From the Departments of Neurosciences and Psychiatry, University of California (R.J.E.), San Diego; Department of Psychiatry, University of California (D.J.M., E.E.S., R.K.H.), San Diego; Department of Medicine, University of California (S.M., T.H.), San Diego; Vanderbilt University (D.S., J.A.F.), Nashville, Tennessee; and Departments of Medicine and Psychiatry, University of California (S.L.L.), San Diego
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Kozin SV, Kravtsov AA, Zlischeva EI, Shurygina LV, Malyshko VV, Moiseev AV, Elkina AA, Baryshev MG. The Influence of a Deuterium Depleted Drinking Diet on the Functional State of the Central Nervous System of Animals in Hypoxia. Biophysics (Nagoya-shi) 2020. [DOI: 10.1134/s0006350920060093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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228
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Scassellati C, Galoforo AC, Bonvicini C, Esposito C, Ricevuti G. Ozone: a natural bioactive molecule with antioxidant property as potential new strategy in aging and in neurodegenerative disorders. Ageing Res Rev 2020; 63:101138. [PMID: 32810649 PMCID: PMC7428719 DOI: 10.1016/j.arr.2020.101138] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/14/2020] [Accepted: 08/04/2020] [Indexed: 02/07/2023]
Abstract
Systems medicine is founded on a mechanism-based approach and identifies in this way specific therapeutic targets. This approach has been applied for the transcription factor nuclear factor (erythroid-derived 2)-like 2 (Nrf2). Nrf2 plays a central role in different pathologies including neurodegenerative disorders (NDs), which are characterized by common pathogenetic features. We here present wide scientific background indicating how a natural bioactive molecule with antioxidant/anti-apoptotic and pro-autophagy properties such as the ozone (O3) can represent a potential new strategy to delay neurodegeneration. Our hypothesis is based on different evidence demonstrating the interaction between O3 and Nrf2 system. Through a meta-analytic approach, we found a significant modulation of O3 on endogenous antioxidant-Nrf2 (p < 0.00001, Odd Ratio (OR) = 1.71 95%CI:1.17-2.25) and vitagene-Nrf2 systems (p < 0.00001, OR = 1.80 95%CI:1.05-2.55). O3 activates also immune, anti-inflammatory signalling, proteasome, releases growth factors, improves blood circulation, and has antimicrobial activity, with potential effects on gut microbiota. Thus, we provide a consistent rationale to implement future clinical studies to apply the oxygen-ozone (O2-O3) therapy in an early phase of aging decline, when it is still possible to intervene before to potentially develop a more severe neurodegenerative pathology. We suggest that O3 along with other antioxidants (polyphenols, mushrooms) implicated in the same Nrf2-mechanisms, can show neurogenic potential, providing evidence as new preventive strategies in aging and in NDs.
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Affiliation(s)
- Catia Scassellati
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy.
| | - Antonio Carlo Galoforo
- Oxygen-Ozone Therapy Scientific Society (SIOOT), Gorle, Italy; University of Pavia, Pavia, Italy
| | - Cristian Bonvicini
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Ciro Esposito
- Department of Internal Medicine and Therapeutics, University of Pavia, Italy; Nephrology and dialysis unit, ICS S. Maugeri SPA SB Hospital, Pavia, Italy; High School in Geriatrics, University of Pavia, Italy
| | - Giovanni Ricevuti
- Department of Drug Sciences, University of Pavia, Italy; P.D. High School in Geriatrics, University of Pavia, Italy; St.Camillus Medical University, Rome, Italy
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Promyo K, Iqbal F, Chaidee N, Chetsawang B. Aluminum chloride-induced amyloid β accumulation and endoplasmic reticulum stress in rat brain are averted by melatonin. Food Chem Toxicol 2020; 146:111829. [PMID: 33130240 DOI: 10.1016/j.fct.2020.111829] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/19/2020] [Accepted: 10/25/2020] [Indexed: 01/18/2023]
Abstract
Accumulation of aluminium (Al) in the brain is known to be a toxic insult that result in neurodegenerative diseases and melatonin is known to have neuroprotective role. The present study was designed to investigate the neuroprotective effects of melatonin for aluminium chloride (AlCl3)-induced neurotoxicity in rats. Twelve-week old male Wistar rats were orally received 175 mg/kg AlCl3 with or without 5 mg/kg melatonin intraperitoneal pretreatment. Group 3 intraperitoneally recieved 5 mg/kg melatonin and group 4 rats were orally treated with saline solution for 8 weeks. A series of behavioral tests, biochemical analysis and expression of AD-associated proteins in the brain were determined after 7 weeks of all treatments. Our results indicated that AlCl3 treatment tends to induce memory and cognitive impairment. However, melatonin treatment attenuated amyloid beta (Aβ) (1-42) level by decreasing β-secretase, augmented low-density lipoprotein receptor-related protein 1, and neprilysin protein expression. Moreover, AlCl3 -induced endoplasmic reticulum (ER) stress and oxidative stress was attenuated by melatonin supplementation. In conclusion, these findings demonstrate a protective role of melatonin against Aβ peptide accumulation, ER stress and oxidative stress in the AlCl3 -treated AD model. Hence, the melatonin supplement might be an alternative way to alleviate the development of AD.
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Affiliation(s)
- Kitipong Promyo
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand; School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Furhan Iqbal
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand; Institute of Pure and Applied Biology, Zoology division, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Nutthika Chaidee
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand
| | - Banthit Chetsawang
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand.
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Ding Q, Shults NV, Harris BT, Suzuki YJ. Angiotensin-converting enzyme 2 (ACE2) is upregulated in Alzheimer's disease brain. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2020:2020.10.08.331157. [PMID: 33052346 PMCID: PMC7553175 DOI: 10.1101/2020.10.08.331157] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Alzheimer's disease is a chronic neurodegenerative disorder and represents the main cause of dementia. Currently, the world is suffering from the pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that uses angiotensin-converting enzyme 2 (ACE2) as a receptor to enter the host cells. In COVID-19, neurological manifestations have been reported to occur. The present study demonstrates that the protein expression level of ACE2 is upregulated in the brain of Alzheimer's disease patients. The increased ACE2 expression is not age-dependent, suggesting the direct relationship between Alzheimer's disease and the ACE2 expression. Oxidative stress has been implicated in the pathogenesis of Alzheimer's disease, and Alzheimer's disease brains examined in this study also exhibited higher carbonylated proteins as well as increased thiol oxidation state of peroxiredoxin 6 (Prx6). The positive correlation was found between the increased ACE2 protein expression and oxidative stress in Alzheimer's disease brain. Thus, the present study reveals the relationships between Alzheimer's disease and ACE2, the receptor for SARS-CoV-2. These results warrant monitoring Alzheimer's disease patients with COVID-19 carefully for the possible higher viral load in the brain and long-term adverse neurological consequences.
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Affiliation(s)
- Qiyue Ding
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington DC 20007 USA
| | - Nataliia V. Shults
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington DC 20007 USA
| | - Brent T. Harris
- Departments of Neurology and Pathology, Georgetown University Medical Center, Washington DC 20007 USA
| | - Yuichiro J. Suzuki
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington DC 20007 USA
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Chen WT, Kuo YY, Lin GB, Lu CH, Hsu HP, Sun YK, Chao CY. Thermal cycling protects SH-SY5Y cells against hydrogen peroxide and β-amyloid-induced cell injury through stress response mechanisms involving Akt pathway. PLoS One 2020; 15:e0240022. [PMID: 33002038 PMCID: PMC7529293 DOI: 10.1371/journal.pone.0240022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 09/17/2020] [Indexed: 12/24/2022] Open
Abstract
Neurodegenerative diseases (NDDs) are becoming a major threat to public health, according to the World Health Organization (WHO). The most common form of NDDs is Alzheimer’s disease (AD), boasting 60–70% share. Although some debates still exist, excessive aggregation of β-amyloid protein (Aβ) and neurofibrillary tangles has been deemed one of the major causes for the pathogenesis of AD. A growing number of evidences from studies, however, have suggested that reactive oxygen species (ROS) also play a key role in the onset and progression of AD. Although scientists have had some understanding of the pathogenesis of AD, the disease still cannot be cured, with existing treatment only capable of providing a temporary relief at best, partly due to the obstacle of blood-brain barrier (BBB). The study was aimed to ascertain the neuroprotective effect of thermal cycle hyperthermia (TC-HT) against hydrogen peroxide (H2O2) and Aβ-induced cytotoxicity in SH-SY5Y cells. Treating cells with this physical stimulation beforehand significantly improved the cell viability and decreased the ROS content. The underlying mechanisms may be due to the activation of Akt pathway and the downstream antioxidant and prosurvival proteins. The findings manifest significant potential of TC-HT in neuroprotection, via inhibition of oxidative stress and cell apoptosis. It is believed that coupled with the use of drugs or natural compounds, this methodology can be even more effective in treating NDDs.
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Affiliation(s)
- Wei-Ting Chen
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Yi Kuo
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Guan-Bo Lin
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chueh-Hsuan Lu
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hao-Ping Hsu
- Department of Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yi-Kun Sun
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chih-Yu Chao
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
- Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei, Taiwan
- * E-mail:
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232
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Haddad M, Perrotte M, Landri S, Lepage A, Fülöp T, Ramassamy C. Circulating and Extracellular Vesicles Levels of N-(1-Carboxymethyl)-L-Lysine (CML) Differentiate Early to Moderate Alzheimer's Disease. J Alzheimers Dis 2020; 69:751-762. [PMID: 31127773 DOI: 10.3233/jad-181272] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Both advanced glycation end products (AGEs) N-(1-carboxymethyl)-L-lysine (CML) and pentosidine were found in the brain from Alzheimer's disease (AD) patients and were associated with the neuropathological hallmarks of AD. In AD patients, the circulating level of both AGEs remains unknown. Moreover, their levels in peripheral extracellular vesicles (EVs) and their association with AD remain to be determined. Finally, it is not known if neuronal cells can release AGEs via EVs and propagate AGEs. OBJECTIVE To determine the levels of circulating CML and pentosidine during the progression of AD. Moreover, their levels in circulating EVs were determined and their association with the clinical cognitive scores were analyzed. Finally, we have studied the possibility that neuronal cells eliminate and transfer these AGEs through EVs. METHODS CML and pentosidine levels were measured in serum and in circulating EVs. Released-EVs from SK-N-SH neuronal cells were isolated and CML levels were also determined. RESULTS The levels of CML in albumin-free serum proteins were higher in the early stage of AD while the levels of pentosidine remained unchanged. In contrast, the levels of CML in the EVs were lower in the moderate stage of AD. Interestingly, the levels of CML in serum were negatively correlated with the clinical cognitive scores MMSE and MoCA. For the first time, we were able to demonstrate that CML was present in EVs released from neuronal cells in culture. CONCLUSION Peripheral and circulating EVs levels of CML can differentiate early to moderate AD. In the brain, neuronal CML can propagate from cells-to-cells via EVs.
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Affiliation(s)
- Mohamed Haddad
- INRS-Institut Armand-Frappier, Laval, QC, Canada.,Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Morgane Perrotte
- INRS-Institut Armand-Frappier, Laval, QC, Canada.,Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Sarra Landri
- INRS-Institut Armand-Frappier, Laval, QC, Canada.,Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Aurelie Lepage
- Department of Medicine, Geriatric Division, Research Center on Aging, Sherbrooke University, Sherbrooke, QC, Canada
| | - Tamàs Fülöp
- Department of Medicine, Geriatric Division, Research Center on Aging, Sherbrooke University, Sherbrooke, QC, Canada
| | - Charles Ramassamy
- INRS-Institut Armand-Frappier, Laval, QC, Canada.,Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
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Wahle T, Sofranko A, Dekkers S, Miller MR, Heusinkveld HJ, Albrecht C, Cassee FR, Schins RP. Evaluation of neurological effects of cerium dioxide nanoparticles doped with different amounts of zirconium following inhalation exposure in mouse models of Alzheimer's and vascular disease. Neurochem Int 2020; 138:104755. [PMID: 32422323 PMCID: PMC7397505 DOI: 10.1016/j.neuint.2020.104755] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/04/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022]
Abstract
Increasing evidence from toxicological and epidemiological studies indicates that the brain is an important target for ambient (ultrafine) particles. Disturbance of redox-homeostasis and inflammation in the brain are proposed as possible mechanisms that can contribute to neurotoxic and neurodegenerative effects. Whether and how engineered nanoparticles (NPs) may cause neurotoxicity and promote neurodegenerative diseases such as Alzheimer's disease (AD) is largely unstudied. We have assessed the neurological effects of subacute inhalation exposures (4 mg/m3 for 3 h/day, 5 days/week for 4 weeks) to cerium dioxide (CeO2) NPs doped with different amounts of zirconium (Zr, 0%, 27% and 78%), to address the influence of particle redox-activity in the 5xFAD transgenic mouse model of AD. Four weeks post-exposure, effects on behaviour were evaluated and brain tissues were analysed for amyloid-β plaque formation and reactive microglia (Iba-1 staining). Behaviour was also evaluated in concurrently exposed non-transgenic C57BL/6J littermates, as well as in Western diet-fed apolipoprotein E-deficient (ApoE-/-) mice as a model of vascular disease. Markers of inflammation and oxidative stress were evaluated in brain cortex. The brains of the NP-exposed 5xFAD mice revealed no accelerated amyloid-β plaque formation. No significant treatment-related behaviour impairments were observed in the healthy C57BL/6J mice. In the 5xFAD and ApoE-/- models, the NP inhalation exposures did not affect the alternation score in the X-maze indicating absence of spatial working memory deficits. However, following inhalation exposure to the 78% Zr-doped CeO2 NPs changes in forced motor performance (string suspension) and exploratory motor activity (X-maze) were observed in ApoE-/- and 5xFAD mice, respectively. Exposure to the 78% doped NPs also caused increased cortical expression of glial fibrillary acidic protein (GFAP) in the C57BL/6J mice. No significant treatment-related changes neuroinflammation and oxidative stress were observed in the 5xFAD and ApoE-/- mice. Our study findings reveal that subacute inhalation exposure to CeO2 NPs does not accelerate the AD-like phenotype of the 5xFAD model. Further investigation is warranted to unravel whether the redox-activity dependent effects on motor activity as observed in the mouse models of AD and vascular disease result from specific neurotoxic effects of these NPs.
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Affiliation(s)
- Tina Wahle
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Adriana Sofranko
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Susan Dekkers
- National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Mark R. Miller
- Centre for Cardiovascular Science & Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Harm J. Heusinkveld
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany,National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Catrin Albrecht
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Flemming R. Cassee
- National Institute for Public Health and the Environment, Bilthoven, the Netherlands,Institute for Risk Assessment Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Roel P.F. Schins
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany,Corresponding author. IUF-Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Düsseldorf, Germany.
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234
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Ebanks B, Ingram TL, Chakrabarti L. ATP synthase and Alzheimer's disease: putting a spin on the mitochondrial hypothesis. Aging (Albany NY) 2020; 12:16647-16662. [PMID: 32853175 PMCID: PMC7485717 DOI: 10.18632/aging.103867] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/21/2020] [Indexed: 12/21/2022]
Abstract
It is estimated that over 44 million people across the globe have dementia, and half of these cases are believed to be Alzheimer’s disease (AD). As the proportion of the global population which is over the age 60 increases so will the number of individuals living with AD. This will result in ever-increasing demands on healthcare systems and the economy. AD can be either sporadic or familial, but both present with similar pathobiology and symptoms. Three prominent theories about the cause of AD are the amyloid, tau and mitochondrial hypotheses. The mitochondrial hypothesis focuses on mitochondrial dysfunction in AD, however little attention has been given to the potential dysfunction of the mitochondrial ATP synthase in AD. ATP synthase is a proton pump which harnesses the chemical potential energy of the proton gradient across the inner mitochondrial membrane (IMM), generated by the electron transport chain (ETC), in order to produce the cellular energy currency ATP. This review presents the evidence accumulated so far that demonstrates dysfunction of ATP synthase in AD, before highlighting two potential pharmacological interventions which may modulate ATP synthase.
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Affiliation(s)
- Brad Ebanks
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington LE12 5RD, UK
| | - Thomas L Ingram
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington LE12 5RD, UK
| | - Lisa Chakrabarti
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington LE12 5RD, UK.,MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, Chesterfield, UK
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235
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Hasselbalch HC, Skov V, Kjær L, Sørensen TL, Ellervik C, Wienecke T. Myeloproliferative blood cancers as a human neuroinflammation model for development of Alzheimer's disease: evidences and perspectives. J Neuroinflammation 2020; 17:248. [PMID: 32829706 PMCID: PMC7444051 DOI: 10.1186/s12974-020-01877-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 06/23/2020] [Indexed: 02/08/2023] Open
Abstract
Chronic inflammation and involvement of myeloid blood cells are associated with the development of Alzheimer's disease (AD). Chronic inflammation is a highly important driving force for the development and progression of the chronic myeloproliferative blood cancers (MPNs), which are characterized by repeated thrombotic episodes years before MPN-diagnosis, being elicited by elevated erythrocytes, leukocytes, and platelets. Mutations in blood cells, the JAK2V617F and TET2-mutations, contribute to the inflammatory and thrombogenic state. Herein, we discuss the MPNs as a human neuroinflammation model for AD development, taking into account the many shared cellular mechanisms for reduction in cerebral blood, including capillary stalling with plugging of blood cells in the cerebral microcirculation. The therapeutic consequences of an association between MPNs and AD are immense, including reduction in elevated cell counts by interferon-alpha2 or hydroxyurea and targeting the chronic inflammatory state by JAK1-2 inhibitors, e.g., ruxolitinib, in the future treatment of AD.
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Affiliation(s)
- Hans C Hasselbalch
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark.
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Vibe Skov
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | - Lasse Kjær
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | - Torben L Sørensen
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Ophthalmology, Zealand University Hospital, Roskilde, Denmark
| | - Christina Ellervik
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Research, Production, Innovation, Roskilde, Region Zealand, Denmark
- Department of Pathology, Harvard Medical School, Boston, USA
| | - Troels Wienecke
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Neurology, Zealand University Hospital, Roskilde, Denmark
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236
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Toyos-Rodríguez C, García-Alonso FJ, de la Escosura-Muñiz A. Electrochemical Biosensors Based on Nanomaterials for Early Detection of Alzheimer's Disease. SENSORS (BASEL, SWITZERLAND) 2020; 20:E4748. [PMID: 32842632 PMCID: PMC7506792 DOI: 10.3390/s20174748] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is an untreatable neurodegenerative disease that initially manifests as difficulty to remember recent events and gradually progresses to cognitive impairment. The incidence of AD is growing yearly as life expectancy increases, thus early detection is essential to ensure a better quality of life for diagnosed patients. To reach that purpose, electrochemical biosensing has emerged as a cost-effective alternative to traditional diagnostic techniques, due to its high sensitivity and selectivity. Of special relevance is the incorporation of nanomaterials in biosensors, as they contribute to enhance electron transfer while promoting the immobilization of biological recognition elements. Moreover, nanomaterials have also been employed as labels, due to their unique electroactive and electrocatalytic properties. The aim of this review is to add value in the advances achieved in the detection of AD biomarkers, the strategies followed for the incorporation of nanomaterials and its effect in biosensors performance.
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Affiliation(s)
- Celia Toyos-Rodríguez
- NanoBioAnalysis Group-Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain;
- Biotechnology Institute of Asturias, University of Oviedo, Santiago Gascon Building, 33006 Oviedo, Spain;
| | - Francisco Javier García-Alonso
- Biotechnology Institute of Asturias, University of Oviedo, Santiago Gascon Building, 33006 Oviedo, Spain;
- NanoBioAnalysis Group-Department of Organic and Inorganic Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain
| | - Alfredo de la Escosura-Muñiz
- NanoBioAnalysis Group-Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain;
- Biotechnology Institute of Asturias, University of Oviedo, Santiago Gascon Building, 33006 Oviedo, Spain;
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237
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Erythrocytes as markers of oxidative stress related pathologies. Mech Ageing Dev 2020; 191:111333. [PMID: 32814082 DOI: 10.1016/j.mad.2020.111333] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 02/06/2023]
Abstract
Erythrocytes are deeply sensitive cells and important health indicators. During inflammatory response RBC, as a part of haematological system, are exposed to circulating inflammatory mediators and related oxidative stress. They present a highly specialized and organized cell membrane that interacts with inflammatory mediators and oxidative agents, leading to a variety of structural changes that promptly signal an abnormal situation. This review is aimed to provide an overview on erythrocyte involvement in physiological and pathological processes related to oxidative stress, such as aging, Down syndrome, neurodegenerative diseases, for instance Alzheimer Disease, erectile dysfunction and cardiovascular diseases. In particular this review will focus on the effects of oxidative stress on structural changes in the cell membrane and also on in the activity of erythrocyte enzymes such as membrane-bound, cytosolic glycohydrolases and RBC-eNOS. This review also underlines the potential clinical application of erythrocyte specific related parameters, which can be important tools not only for the study but also for the monitoring of several oxidative stress related diseases.
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238
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Hou L, Zhang L, Hong JS, Zhang D, Zhao J, Wang Q. Nicotinamide Adenine Dinucleotide Phosphate Oxidase and Neurodegenerative Diseases: Mechanisms and Therapy. Antioxid Redox Signal 2020; 33:374-393. [PMID: 31968994 DOI: 10.1089/ars.2019.8014] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Significance: The growing incidence of neurodegenerative diseases significantly impacts the individuals who suffer from these disorders and is a major health concern globally. Although the specific mechanisms of neurodegenerative diseases are still far from being acknowledged, it is becoming clear that oxidative stress and neuroinflammation are critical contributing factors to the progression of neurodegeneration. Thus, it is conceivable that the inhibition of oxidative stress and neuroinflammation may represent promising therapeutic targets for the treatment of neurodegenerative diseases. Recent Advances: Recently, the strategy for neurodegenerative disease therapy has shifted from the use of antioxidants and conventional anti-inflammatory targets to upstream mediators due to the failure of most antioxidants and nonsteroidal anti-inflammatory drugs in clinical trials. Nicotinamide adenine dinucleotide phosphate oxidases (NOXs), a family of superoxide-producing enzyme complexes, have been identified as an upstream factor that controls both oxidative stress and neuroinflammation. Genetic inactivation or pharmacological inhibition of NOX enzymes displays potent neuroprotective effects in a broad spectrum of neurodegenerative disease models. Critical Issues: The detailed mechanisms of how NOX enzymes regulate oxidative stress and neuroinflammation still remain unclear. Moreover, the currently available inhibitors of NOX enzymes exhibit nonspecificity, off-target effects, unsuitable pharmacokinetic properties, and even high toxicity, markedly limiting their potential clinical applications. Future Directions: This review provides novel insights into the roles of NOXs in neurodegenerative pharmacology, and indicates the types of NOX enzyme inhibitors that should be identified and developed as candidates for future applications, which might reveal novel neurodegenerative disease therapies based on NOXs.
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Affiliation(s)
- Liyan Hou
- Institute of Toxicology, School of Public Health, Dalian Medical University, Dalian, China.,National-Local Joint Engineering Research Center for Drug-Research and Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Jau-Shyong Hong
- Neuropharmacology Section, Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Dan Zhang
- State Key Laboratory of Natural Products and Functions, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jie Zhao
- National-Local Joint Engineering Research Center for Drug-Research and Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China
| | - Qingshan Wang
- Institute of Toxicology, School of Public Health, Dalian Medical University, Dalian, China.,National-Local Joint Engineering Research Center for Drug-Research and Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China
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239
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Pradhan K, Das G, Kar C, Mukherjee N, Khan J, Mahata T, Barman S, Ghosh S. Rhodamine-Based Metal Chelator: A Potent Inhibitor of Metal-Catalyzed Amyloid Toxicity. ACS OMEGA 2020; 5:18958-18967. [PMID: 32775897 PMCID: PMC7408195 DOI: 10.1021/acsomega.0c02235] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/19/2020] [Indexed: 05/28/2023]
Abstract
Alzheimer's disease (AD) exhibits a multitude of syndromes which add up to its complex nature. In AD, amyloid plaques are deposited along with abnormal accumulation of transition-metal ions. These transition-metal ions are redox-active and help to induce the formation of various polymorphic forms of amyloid-β. Amyloid oligomeric and fibrillar aggregates are the main cause for neuronal toxicity. Another reason for neuronal toxicity arises from generation of reactive oxygen species (ROS) catalyzed by redox-active metal ions through Fenton's reaction. In this direction, an Aβ inhibitor possessing the metal chelation property will be the most promising approach against multifaceted AD. Herein, a rhodamine-B-based compound (Rh-BT) has been designed and synthesized. Rhodamine was attached with benzothiazole as a recognition unit for amyloid-β aggregates. The molecule can effectively capture redox metal ions from the Aβ-Cu2+ complex as well as inhibit Aβ self-assembly such as toxic oligomeric and fibrillar aggregates. Various biophysical assays show that Rh-BT interacts with the Aβ peptide, is capable of decreasing metal-induced ROS generation, and inhibits Aβ-Cu2+-induced cytotoxicity. All these results support the multifunctional nature of Rh-BT, which has an Aβ-specific recognition unit. In addition to the above properties, Rh-BT also exhibits good serum stability in vivo and blood-brain barrier permeability. Therefore, Rh-BT can be considered as a potent multifunctional therapeutic for the treatment of AD.
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Affiliation(s)
- Krishnangsu Pradhan
- Organic
and Medicinal Chemistry and Structural Biology and Bioinformatics
Division, CSIR-Indian Institute of Chemical
Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, West Bengal, India
| | - Gaurav Das
- Organic
and Medicinal Chemistry and Structural Biology and Bioinformatics
Division, CSIR-Indian Institute of Chemical
Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, West Bengal, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Chirantan Kar
- Organic
and Medicinal Chemistry and Structural Biology and Bioinformatics
Division, CSIR-Indian Institute of Chemical
Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, West Bengal, India
| | - Nabanita Mukherjee
- Department
of Bioscience & Bioengineering, Indian
Institute of Technology Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India
| | - Juhee Khan
- Organic
and Medicinal Chemistry and Structural Biology and Bioinformatics
Division, CSIR-Indian Institute of Chemical
Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, West Bengal, India
| | - Tanushree Mahata
- Organic
and Medicinal Chemistry and Structural Biology and Bioinformatics
Division, CSIR-Indian Institute of Chemical
Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, West Bengal, India
| | - Surajit Barman
- Organic
and Medicinal Chemistry and Structural Biology and Bioinformatics
Division, CSIR-Indian Institute of Chemical
Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, West Bengal, India
| | - Surajit Ghosh
- Organic
and Medicinal Chemistry and Structural Biology and Bioinformatics
Division, CSIR-Indian Institute of Chemical
Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, West Bengal, India
- Department
of Bioscience & Bioengineering, Indian
Institute of Technology Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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240
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Clark CM, Clark RM, Hoyle JA, Dickson TC. Pathogenic or protective? Neuropeptide Y in amyotrophic lateral sclerosis. J Neurochem 2020; 156:273-289. [PMID: 32654149 DOI: 10.1111/jnc.15125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/16/2020] [Accepted: 06/24/2020] [Indexed: 12/13/2022]
Abstract
Neuropeptide Y (NPY) is an endogenous peptide of the central and enteric nervous systems which has gained significant interest as a potential neuroprotective agent for treatment of neurodegenerative disease. Amyotrophic lateral sclerosis (ALS) is an aggressive and fatal neurodegenerative disease characterized by motor deficits and motor neuron loss. In ALS, recent evidence from ALS patients and animal models has indicated that NPY may have a role in the disease pathogenesis. Increased NPY levels were found to correlate with disease progression in ALS patients. Similarly, NPY expression is increased in the motor cortex of ALS mice by end stages of the disease. Although the functional consequence of increased NPY levels in ALS is currently unknown, NPY has been shown to exert a diverse range of neuroprotective roles in other neurodegenerative diseases; through modulation of potassium channel activity, increased production of neurotrophins, inhibition of endoplasmic reticulum stress and autophagy, reduction of excitotoxicity, oxidative stress, neuroinflammation and hyperexcitability. Several of these mechanisms and signalling pathways are heavily implicated in the pathogenesis of ALS. Therefore, in this review, we discuss possible effects of NPY and NPY-receptor signalling in the ALS disease context, as determining NPY's contribution to, or impact on, ALS disease mechanisms will be essential for future studies investigating the NPY system as a therapeutic strategy in this devastating disease.
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Affiliation(s)
- Courtney M Clark
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Rosemary M Clark
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Joshua A Hoyle
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Tracey C Dickson
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
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241
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Zhao Y, Dang M, Zhang W, Lei Y, Ramesh T, Priya Veeraraghavan V, Hou X. Neuroprotective effects of Syringic acid against aluminium chloride induced oxidative stress mediated neuroinflammation in rat model of Alzheimer's disease. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104009] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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242
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Castañeda-Arriaga R, Pérez-González A, Reina M, Galano A. Computer-designed melatonin derivatives: potent peroxyl radical scavengers with no pro-oxidant behavior. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-02641-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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243
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Oxidative Stress-Mediated Blood-Brain Barrier (BBB) Disruption in Neurological Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020. [DOI: 10.1155/2020/4356386] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The blood-brain barrier (BBB), as a crucial gate of brain-blood molecular exchange, is involved in the pathogenesis of multiple neurological diseases. Oxidative stress is caused by an imbalance between the production of reactive oxygen species (ROS) and the scavenger system. Since oxidative stress plays a significant role in the production and maintenance of the BBB, the cerebrovascular system is especially vulnerable to it. The pathways that initiate BBB dysfunction include, but are not limited to, mitochondrial dysfunction, excitotoxicity, iron metabolism, cytokines, pyroptosis, and necroptosis, all converging on the generation of ROS. Interestingly, ROS also provide common triggers that directly regulate BBB damage, parameters including tight junction (TJ) modifications, transporters, matrix metalloproteinase (MMP) activation, inflammatory responses, and autophagy. We will discuss the role of oxidative stress-mediated BBB disruption in neurological diseases, such as hemorrhagic stroke, ischemic stroke (IS), Alzheimer’s disease (AD), Parkinson’s disease (PD), traumatic brain injury (TBI), amyotrophic lateral sclerosis (ALS), and cerebral small vessel disease (CSVD). This review will also discuss the latest clinical evidence of potential biomarkers and antioxidant drugs towards oxidative stress in neurological diseases. A deeper understanding of how oxidative stress damages BBB may open up more therapeutic options for the treatment of neurological diseases.
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244
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Magnolol Ameliorates Behavioral Impairments and Neuropathology in a Transgenic Mouse Model of Alzheimer's Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5920476. [PMID: 32714487 PMCID: PMC7354664 DOI: 10.1155/2020/5920476] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/13/2020] [Indexed: 12/02/2022]
Abstract
Alzheimer's disease (AD) is a common neurodegenerative disease characterized by progressive memory loss. Magnolol (MN), the main active ingredient of Magnolia officinalis, possesses anti-AD effects in several experimental models of AD. In this study, we aimed to explore whether MN could ameliorate the cognitive deficits in TgCRND8 transgenic mice and to elucidate its molecular mechanisms. Male TgCRND8 mice were orally administered with MN (20 and 40 mg/kg) daily for 4 consecutive months, followed by assessing the spatial learning and memory functions using the open-field, radial arm maze, and novel object recognition tests. The results demonstrated that MN (20 and 40 mg/kg) could markedly ameliorate the cognitive deficits in TgCRND8 mice. In addition, MN significantly increased the expression of postsynaptic density protein 93 (PSD93), PSD-95, synapsin-1, synaptotagmin-1, synaptophysin (SYN), and interleukin-10 (IL-10), while markedly reduced the protein levels of tumor necrosis factor alpha (TNF-α), IL-6, IL-1β, Aβ40, and Aβ42, and modulated the amyloid precursor protein (APP) processing and phosphorylation. Immunofluorescence showed that MN significantly suppressed the activation of microglia (Iba-1) and astrocytes (GFAP) in the hippocampus and cerebral cortex of TgCRND8 mice. Mechanistic studies revealed that MN could significantly increase the ratios of p-GSK-3β (Ser9)/GSK-3β, p-Akt (Ser473)/Akt, and p-NF-κB p65/NF-κB p65. These findings indicate that MN exerted cognitive deficits improving effects via suppressing neuroinflammation, amyloid pathology, and synaptic dysfunction through regulating the PI3K/Akt/GSK-3β and NF-κB pathways, suggesting that MN is a promising naturally occurring polyphenol worthy of further developing into a therapeutic agent for AD treatment.
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245
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Jin J, Zhao X, Fu H, Gao Y. The Effects of YAP and Its Related Mechanisms in Central Nervous System Diseases. Front Neurosci 2020; 14:595. [PMID: 32676008 PMCID: PMC7333666 DOI: 10.3389/fnins.2020.00595] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/15/2020] [Indexed: 12/19/2022] Open
Abstract
Yes-associated protein (YAP) is a key effector downstream of the Hippo signaling pathway and plays an important role in the development of the physiology and pathology of the central nervous system (CNS), especially regulating cell proliferation, differentiation, migration, and apoptosis. However, the roles and underlying mechanisms of YAP in CNS diseases are still puzzling. Here, this review will systematically and comprehensively summarize the biological feature, pathological role, and underlying mechanisms of YAP in normal and pathologic CNS, which aims to provide insights into the potential molecular targets and new therapeutic strategies for CNS diseases.
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Affiliation(s)
- Jiayan Jin
- Department of Forensic Science, School of Basic Medical Science, Wenzhou Medical University, Wenzhou, China.,School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xiaoxuan Zhao
- Department of Forensic Science, School of Basic Medical Science, Wenzhou Medical University, Wenzhou, China.,School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Huifang Fu
- Department of Forensic Science, School of Basic Medical Science, Wenzhou Medical University, Wenzhou, China.,Department of Pathology, Traditional Chinese Medicine Hospital of Jiangning District, Nanjing, China
| | - Yuan Gao
- Department of Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China.,Department of Forensic Science, School of Basic Medical Science, Wenzhou Medical University, Wenzhou, China.,Forensic Center, Wenzhou Medical University, Wenzhou, China
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246
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Abstract
PURPOSE OF REVIEW This review summarizes the evidence for the established vascular/hypoperfusion model and explores the new hypothesis that configures the heart/brain axis as an organ system where similar pathogenic mechanisms exploit physiological and pathological changes. RECENT FINDINGS Although associated by common risk factors, similar epidemiological stratification and common triggers (including inflammation, oxidative stress, and hypoxia), heart failure and Alzheimer's disease have been, for long time, viewed as pathogenically separate illnesses. The silos began to be broken down with the awareness that vascular dysfunction, and loss of cardiac perfusion pump power, trigger biochemical changes, contributing to the typical hallmark of Alzheimer's disease (AD)-the accumulation of Aβ plaques and hyperphosphorylated Tau tangles. Compromised blood flow to the brain becomes the paradigm for the "heart-to-head" connection. Compelling evidence of common genetic variants, biochemical characteristics, and the accumulation of Aβ outside the brain suggests a common pathogenesis for heart failure (HF) and AD. These new findings represent just the beginning of the understanding the complex connection between AD and HF requiring further studies and interdisciplinary approaches. Altogether, the current evidence briefly summarized in this review, highlight a closer and complex relationship between heart failure and Alzheimer's that goes beyond the vascular/perfusion hypothesis. Genetic and biochemical evidence begin to suggest common pathogenic mechanisms between the two diseases involving a systemic defect in the folding of protein or a seeding at distance of the misfolded proteins from one organ to the other.
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A Novel Compound YS-5-23 Exhibits Neuroprotective Effect by Reducing β-Site Amyloid Precursor Protein Cleaving Enzyme 1's Expression and H 2O 2-Induced Cytotoxicity in SH-SY5Y Cells. Neurochem Res 2020; 45:2113-2127. [PMID: 32556702 DOI: 10.1007/s11064-020-03073-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/08/2020] [Accepted: 06/12/2020] [Indexed: 10/24/2022]
Abstract
The abnormally accumulated amyloid-β (Aβ) and oxidative stress contribute to the initiation and progression of Alzheimer's disease (AD). β-site amyloid precursor protein cleaving enzyme 1 (BACE1) is the rate-limiting enzyme for the production of Aβ. Furthermore, Aβ was reported to increase oxidative stress; then the overproduced oxidative stress continues to increase the expression and activity of BACE1. Consequently, inhibition of both BACE1 and oxidative stress is a better strategy for AD therapy compared with those one-target treatment methods. In the present study, our novel small molecule YS-5-23 was proved to possess both of the activities. Specifically, we found that YS-5-23 reduces BACE1's expression in both SH-SY5Y and Swedish mutated amyloid precursor protein (APP) overexpressed HEK293 cells, and it can also suppress BACE1's expression induced by H2O2. Moreover, YS-5-23 decreases H2O2-induced cytotoxicity including alleviating H2O2-induced apoptosis and loss of mitochondria membrane potential (MMP) because it attenuates the reactive oxygen species (ROS) level elevated by H2O2. Meanwhile, PI3K/Akt signaling pathway is involved in the anti-H2O2 and BACE1 inhibition effect of YS-5-23. Our findings indicate that YS-5-23 may develop as a drug candidate in the prevention and treatment of AD.
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248
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Caruso G, Spampinato SF, Cardaci V, Caraci F, Sortino MA, Merlo S. β-amyloid and Oxidative Stress: Perspectives in Drug Development. Curr Pharm Des 2020; 25:4771-4781. [PMID: 31814548 DOI: 10.2174/1381612825666191209115431] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 12/04/2019] [Indexed: 01/08/2023]
Abstract
Alzheimer's Disease (AD) is a slow-developing neurodegenerative disorder in which the main pathogenic role has been assigned to β-amyloid protein (Aβ) that accumulates in extracellular plaques. The mechanism of action of Aβ has been deeply analyzed and several membrane structures have been identified as potential mediators of its effect. The ability of Aβ to modify neuronal activity, receptor expression, signaling pathways, mitochondrial function, and involvement of glial cells have been analyzed. In addition, extensive literature deals with the involvement of oxidative stress in Aβ effects. Herein we focus more specifically on the reciprocal regulation of Aβ, that causes oxidative stress, that favors Aβ aggregation and toxicity and negatively affects the peptide clearance. Analysis of this strict interaction may offer novel opportunities for therapeutic intervention. Both common and new molecules endowed with antioxidant properties deserve attention in this regard.
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Affiliation(s)
| | - Simona F Spampinato
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, 95125 Catania, Italy
| | - Vincenzo Cardaci
- Scuola Superiore di Catania, University of Catania, 95123 Catania, Italy.,Department of Drug Sciences, University of Catania, 95125 Catania, Italy
| | - Filippo Caraci
- Oasi Research Institute - IRCCS, 94018 Troina, Italy.,Department of Drug Sciences, University of Catania, 95125 Catania, Italy
| | - Maria A Sortino
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, 95125 Catania, Italy
| | - Sara Merlo
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, 95125 Catania, Italy
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249
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Zhang N, Xing Y, Yu Y, Liu C, Jin B, Huo L, Kong D, Yang Z, Zhang X, Zheng R, Jia Z, Kang L, Zhang W. Influence of human amylin on the membrane stability of rat primary hippocampal neurons. Aging (Albany NY) 2020; 12:8923-8938. [PMID: 32463790 PMCID: PMC7288967 DOI: 10.18632/aging.103105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/09/2020] [Indexed: 04/09/2023]
Abstract
The two most common aging-related diseases, Alzheimer's disease and type 2 diabetes mellitus, are associated with accumulation of amyloid proteins (β-amyloid and amylin, respectively). This amylin aggregation is reportedly cytotoxic to neurons. We found that aggregation of human amylin (hAmylin) induced neuronal apoptosis without obvious microglial infiltration in vivo. High concentrations of hAmylin irreversibly aggregated on the surface of the neuronal plasma membrane. Long-term incubation with hAmylin induced morphological changes in neurons. Moreover, hAmylin permeabilized the neuronal membrane within 1 min in a manner similar to Triton X-100, allowing impermeable fluorescent antibodies to enter the neurons and stain intracellular antigens. hAmylin also permeabilized the cell membrane of astrocytes, though more slowly. Under scanning electron microscopy, we observed that hAmylin destroyed the integrity of the cell membranes of both neurons and astrocytes. Additionally, it increased intracellular reactive oxygen species generation and reduced the mitochondrial membrane potential. Thus, by aggregating on the surface of neurons, hAmylin impaired the cell membrane integrity, induced reactive oxygen species production, reduced the mitochondrial membrane potential, and ultimately induced neuronal apoptosis.
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Affiliation(s)
- Nan Zhang
- Central Laboratory, First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, Hebei, China
| | - Yuan Xing
- Department of Neurology, First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Brain Aging and Cognitive Neuroscience Key Laboratory of Hebei Province, Shijiazhuang, Hebei, China
| | - Yongzhou Yu
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chao Liu
- Department of Laboratory Animal Science, Hebei Medical University, Hebei Key Lab of Laboratory Animal Science, Shijiazhuang, Hebei, China
| | - Baohua Jin
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lifang Huo
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Dezhi Kong
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Zuxiao Yang
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiangjian Zhang
- Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ruimao Zheng
- Department of Anatomy, Histology and Embryology, Health Science Center, Neuroscience Research Institute, Key Laboratory for Neuroscience of the Ministry of Education, Key Laboratory for Neuroscience of the National Health Commission, Peking University, Beijing, China
| | - Zhanfeng Jia
- Department of Pharmacology, The Key Laboratory of New Drug Pharmacology and Toxicology, Center for Innovative Drug Research and Evaluation, Institute of Medical Science and Health, The Key Laboratory of Neural and Vascular Biology Ministry of Education, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lin Kang
- Department of Endocrinology, The Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital, Clinical Medical Research Center, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
| | - Wei Zhang
- Department of Pharmacology, Institution of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei, China
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250
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Mitochondrial Dysfunction: a Potential Therapeutic Target to Treat Alzheimer’s Disease. Mol Neurobiol 2020; 57:3075-3088. [DOI: 10.1007/s12035-020-01945-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/13/2020] [Indexed: 01/10/2023]
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