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Jorda A, Cauli O, Santonja JM, Aldasoro M, Aldasoro C, Obrador E, Vila JM, Mauricio MD, Iradi A, Guerra-Ojeda S, Marchio P, Valles SL. Changes in Chemokines and Chemokine Receptors Expression in a Mouse Model of Alzheimer's Disease. Int J Biol Sci 2019; 15:453-463. [PMID: 30745834 PMCID: PMC6367555 DOI: 10.7150/ijbs.26703] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 11/21/2018] [Indexed: 11/18/2022] Open
Abstract
The amyloid precursor protein plus presenilin-1 (APP/PS1) mice are a frequently-used model for Alzheimer's disease studies (AD). However, the data relevant to which proteins are involved in inflammatory mechanism are not sufficiently well-studied using the AD mouse model. Using behavioral studies, quantitative RT-PCR and Western-blot techniques, significant findings were determined by the expression of proteins involved in inflammation comparing APP/PS1 and Wild type mice. Increased GFAP expression could be associated with the elevation in number of reactive astrocytes. IL-3 is involved in inflammation and ABDF1 intervenes normally in the transport across cell membranes and both were found up-regulated in APP/PS1 mice compared to Wild type mice. Furthermore, CCR5 expression was decreased and both CCL3 and CCL4 chemokines were highly expressed indicating a possible gliosis and probably an increase in chemotaxis from lymphocytes and T cell generation. We also noted for the first time, a CCR8 increase expression with diminution of its CCL1 chemokine, both normally involved in protection from bacterial infection and demyelination. Control of inflammatory proteins will be the next step in understanding the progression of AD and also in determining the mechanisms that can develop in this disease.
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Affiliation(s)
- Adrián Jorda
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | - Omar Cauli
- Faculty of Surgery and Chiropody, University of Valencia. Spain
| | | | - Martin Aldasoro
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | - Constanza Aldasoro
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | - Elena Obrador
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | - Jose Ma Vila
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | | | - Antonio Iradi
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | - Sol Guerra-Ojeda
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | - Patricia Marchio
- Department of Physiology, School of Medicine, University of Valencia. Spain
| | - Soraya L Valles
- Department of Physiology, School of Medicine, University of Valencia. Spain
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52
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Rana M, Sharma AK. Cu and Zn interactions with Aβ peptides: consequence of coordination on aggregation and formation of neurotoxic soluble Aβ oligomers. Metallomics 2019; 11:64-84. [DOI: 10.1039/c8mt00203g] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The coordination chemistry of transition metal ions (Fe, Cu, Zn) with the amyloid-β (Aβ) peptides has attracted a lot of attention in recent years due to its repercussions in Alzheimer's disease (AD).
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Affiliation(s)
- Monika Rana
- Department of Chemistry
- Central University of Rajasthan
- Ajmer 305817
- India
| | - Anuj Kumar Sharma
- Department of Chemistry
- Central University of Rajasthan
- Ajmer 305817
- India
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53
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Fawzy Fahim V, Wadie W, Shafik AN, Ishak Attallah M. Role of simvastatin and insulin in memory protection in a rat model of diabetes mellitus and dementia. Brain Res Bull 2019; 144:21-27. [PMID: 30395886 DOI: 10.1016/j.brainresbull.2018.10.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/21/2018] [Accepted: 10/31/2018] [Indexed: 02/06/2023]
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54
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Nnah IC, Wessling-Resnick M. Brain Iron Homeostasis: A Focus on Microglial Iron. Pharmaceuticals (Basel) 2018; 11:ph11040129. [PMID: 30477086 PMCID: PMC6316365 DOI: 10.3390/ph11040129] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 12/14/2022] Open
Abstract
Iron is an essential trace element required for important brain functions including oxidative metabolism, synaptic plasticity, myelination, and the synthesis of neurotransmitters. Disruptions in brain iron homeostasis underlie many neurodegenerative diseases. Increasing evidence suggests that accumulation of brain iron and chronic neuroinflammation, characterized by microglia activation and secretion of proinflammatory cytokines, are hallmarks of neurodegenerative disorders including Alzheimer’ s disease. While substantial efforts have led to an increased understanding of iron metabolism and the role of microglial cells in neuroinflammation, important questions still remain unanswered. Whether or not increased brain iron augments the inflammatory responses of microglial cells, including the molecular cues that guide such responses, is still unclear. How these brain macrophages accumulate, store, and utilize intracellular iron to carry out their various functions under normal and disease conditions is incompletely understood. Here, we describe the known and emerging mechanisms involved in microglial cell iron transport and metabolism as well as inflammatory responses in the brain, with a focus on AD.
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Affiliation(s)
- Israel C Nnah
- Department of Genetics and Complex Diseases, Harvard TH Chan School of Public Health, Boston, MA 02115, USA.
| | - Marianne Wessling-Resnick
- Department of Genetics and Complex Diseases, Harvard TH Chan School of Public Health, Boston, MA 02115, USA.
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55
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Mitra S, Prasad P, Chakraborty S. A Unified View of Assessing the Pro-oxidant versus Antioxidant Nature of Amyloid Beta Conformers. Chembiochem 2018; 19:2360-2371. [PMID: 30151968 DOI: 10.1002/cbic.201800446] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Indexed: 11/06/2022]
Abstract
Transition-metal-catalyzed oxidative stress is a widespread concern in the pathogenesis of Alzheimer's disease. However, the exact role of amyloid beta oligomers towards oxidative stress is widely debated. Assessing the oxidative nature of the oligomers in vitro is complicated by the different experimental conditions under which they are prepared. We have investigated Cu2+ -catalyzed reactive oxygen species (ROS) generation by using oligomers prepared in phosphate-buffered saline (AβO-PBS ) and in cell culture medium (AβO-CCM ), and compared their activities with respect to the monomers and fibrils prepared at neutral and acidic pH. Although both are deca- to dodecamers, the AβO-PBS oligomers have a spherical morphology and are smaller than the AβO-CCM . The AβO-PBS behaved as pro-oxidants; in contrast, AβO-CCM quench OH. generation attributed to CCM itself. Although the pro-oxidant oligomers showed oxidation, they also partially protect themselves from radical damage and maintain their overall spherical arrangement. The monomers and fibrils manifested antioxidant properties: radical scavenging as opposed to redox silencing. A dual role of Aβ species depending on the stage of the disease is proposed. In the earlier stages, the monomers can act as antioxidants, whereas at the later stages, the oligomers take on a pro-oxidant role. Kaempferol, a natural flavonoid, bound Cu2+ in 2:1 ratio and abolished ROS production in all Aβ species. It also distinctly modified the folding landscape of Aβ species into new or altered morphologies.
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Affiliation(s)
- Suchitra Mitra
- Department of Chemistry and Biochemistry, University of Mississippi, 305 Coulter Hall, University, MS, 38677, USA
| | - Pallavi Prasad
- Department of Chemistry and Biochemistry, University of Mississippi, 305 Coulter Hall, University, MS, 38677, USA
| | - Saumen Chakraborty
- Department of Chemistry and Biochemistry, University of Mississippi, 305 Coulter Hall, University, MS, 38677, USA
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56
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Katebi B, Mahdavimehr M, Meratan AA, Ghasemi A, Nemat-Gorgani M. Protective effects of silibinin on insulin amyloid fibrillation, cytotoxicity and mitochondrial membrane damage. Arch Biochem Biophys 2018; 659:22-32. [PMID: 30266624 DOI: 10.1016/j.abb.2018.09.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 09/12/2018] [Accepted: 09/25/2018] [Indexed: 02/02/2023]
Abstract
A growing body of evidence suggests that secretion and assembly of insulin to amyloid fibrils reduce its efficacy in treating type II diabetes and may lead to dysfunctioning of several organs. The research presented here explores the effects of silibinin on the in vitro amyloid fibrillation and cytotoxicity of bovine insulin fibrils on SH-SY5Y human neuroblastoma cells. Interaction of the resulting structures with rat brain mitochondria was also investigated. Using a range of methods for amyloid detection we showed that insulin fibrillation was significantly inhibited by silibinin in a dose-dependent fashion. Moreover, we found that silibinin was very effective in attenuating insulin fibril-induced neuronal toxicity characterized by decrease of cell viability, the release of lactate dehydrogenase, intracellular reactive oxygen species enhancement, morphological alterations, and apoptotic cell death induction. While insulin fibrillation products showed the capacity to damage mitochondria, the resultant structures produced in the presence of silibinin were totally ineffective. Together, results demonstrate the capacity of insulin fibrils to cause SH-SY5Y cell death by inducing necrosis/apoptosis changes and suggest how silibinin may afford protection. It is concluded that elucidation of such protection may provide important insights into the development of preventive and therapeutic agents for amyloid-related diseases.
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Affiliation(s)
- Bentolhoda Katebi
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Mohsen Mahdavimehr
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Ali Akbar Meratan
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran.
| | - Atiyeh Ghasemi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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57
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Akbarian M, Ghasemi Y, Uversky VN, Yousefi R. Chemical modifications of insulin: Finding a compromise between stability and pharmaceutical performance. Int J Pharm 2018; 547:450-468. [DOI: 10.1016/j.ijpharm.2018.06.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/06/2018] [Accepted: 06/07/2018] [Indexed: 02/07/2023]
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58
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Agrawal M, Saraf S, Saraf S, Antimisiaris SG, Chougule MB, Shoyele SA, Alexander A. Nose-to-brain drug delivery: An update on clinical challenges and progress towards approval of anti-Alzheimer drugs. J Control Release 2018; 281:139-177. [DOI: 10.1016/j.jconrel.2018.05.011] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/10/2018] [Accepted: 05/10/2018] [Indexed: 01/02/2023]
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59
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Lane DJ, Ayton S, Bush AI. Iron and Alzheimer’s Disease: An Update on Emerging Mechanisms. J Alzheimers Dis 2018; 64:S379-S395. [DOI: 10.3233/jad-179944] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Darius J.R. Lane
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Scott Ayton
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Ashley I. Bush
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Parkville, VIC, Australia
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60
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He L, Boice A, Liu K, Yan X, Jiang Y, Zhang S. Design and characterization of bivalent compounds as potential neuroprotectants for Alzheimer's disease: Impact of the spacer on biological activity. Bioorg Med Chem Lett 2018; 28:1030-1036. [PMID: 29475586 DOI: 10.1016/j.bmcl.2018.02.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 02/10/2018] [Accepted: 02/13/2018] [Indexed: 11/15/2022]
Abstract
In our continuing efforts to develop bivalent compounds as potential neuroprotectants for Alzheimer's disease, a series of bivalent compounds that contain cholesterylamine and an extended spacer were synthesized and biologically characterized. Our results demonstrated that incorporation of a piperazine ring into the spacer composition significantly improved the protective potency in MC65 cell models. Our results also suggested that the optimal spacer length for such bivalent compounds ranges from 17 to 21 atoms, and further spacer extension beyond 21 atoms results no further optimization. Notably, incorporation of a piperazine ring into the spacer diminished the biometal chelating capacity for these bivalent compounds, thus suggesting structural flexibility of these compounds in interactions with metals. Collectively, the results provided valuable guidance to develop new bivalent compounds as neuroprotectants for Alzheimer's disease.
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Affiliation(s)
- Liu He
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Ashley Boice
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Kai Liu
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Xing Yan
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Yuqi Jiang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA.
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61
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Vázquez de la Torre A, Gay M, Vilaprinyó-Pascual S, Mazzucato R, Serra-Batiste M, Vilaseca M, Carulla N. Direct Evidence of the Presence of Cross-Linked Aβ Dimers in the Brains of Alzheimer’s Disease Patients. Anal Chem 2018. [DOI: 10.1021/acs.analchem.7b04936] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Aurelio Vázquez de la Torre
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Marina Gay
- Mass Spectrometry and Proteomics Core Facility, Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Sílvia Vilaprinyó-Pascual
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Roberta Mazzucato
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Montserrat Serra-Batiste
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Marta Vilaseca
- Mass Spectrometry and Proteomics Core Facility, Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Natàlia Carulla
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain
- CBMN (UMR 5248), University of Bordeaux − CNRS − IPB, Institut Européen de Chimie et Biologie, 2 rue Escarpit, 33600 Pessac, France
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62
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Vaz FNC, Fermino BL, Haskel MVL, Wouk J, de Freitas GBL, Fabbri R, Montagna E, Rocha JBT, Bonini JS. The Relationship Between Copper, Iron, and Selenium Levels and Alzheimer Disease. Biol Trace Elem Res 2018; 181:185-191. [PMID: 28500578 DOI: 10.1007/s12011-017-1042-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 04/30/2017] [Indexed: 12/29/2022]
Abstract
This study aimed to evaluate the concentrations of copper, iron, and selenium in elderly people with Alzheimer disease (AD), comparing the same parameters in a paired group of healthy people, in order to verify if the amount of these metals may influence the cognitive impairment progression. Patients' cognitive impairment was evaluated by Clinical Dementia Rating (CDR). The elementary quantification of erythrocytes was performed by inductively coupled plasma mass spectrometry technique. The statistical analyses were carried out by SPSS software 20.0 version, employing Shapiro-Wilk, Wilcoxon, Kruskall-Wallis, and Spearman correlation tests, considering significant results of p < 0.05. The sample was composed of 34% (n = 11) of women and 66% (n = 21) of men in each group. The AD group was characterized by a higher concentration of copper (p < 0.0001) and iron (p < 0.0001); however, there is no significant difference in selenium level. The analyses of the metal levels in different stages of AD were not significant in CDR-1, however in CDR-2 and CDR-3, elevated levels of copper and iron were observed; in CDR-3 patients, the level of selenium was lower (p < 0.008) compared to that of healthy controls. Patients with Alzheimer disease studied present increase in biometal blood levels, especially of copper and iron, and such increase can be different according to the disease stage and can cause more impairment cognitive functions in AD.
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Affiliation(s)
- Felipe Nathanael Coelho Vaz
- Campus CEDETEG, Pharmacy Department, Midwest State University, Simeão Camargo Varella de Sá, Vila Carli, Guarapuava, PR, 85040-080, Brazil
| | - Bárbara Luisa Fermino
- Campus CEDETEG, Pharmacy Department, Midwest State University, Simeão Camargo Varella de Sá, Vila Carli, Guarapuava, PR, 85040-080, Brazil
| | - Maria Vaitsa Loch Haskel
- Campus CEDETEG, Pharmacy Department, Midwest State University, Simeão Camargo Varella de Sá, Vila Carli, Guarapuava, PR, 85040-080, Brazil
| | - Jéssica Wouk
- Campus CEDETEG, Pharmacy Department, Midwest State University, Simeão Camargo Varella de Sá, Vila Carli, Guarapuava, PR, 85040-080, Brazil
| | | | - Roberta Fabbri
- Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
- Dipartimento di Neuroscienze, Psicologia, Areadel Farmaco e Salute del Bambino, Sezionedi Farmacologia e Tossicologia, Universitádi Firenze, 50139, Florence, Italy
| | - Erik Montagna
- Faculdade de Medicina do ABC, Departamento de Pós-Graduação, Pesquisa e Inovação, Av. Lauro Gomes, 2000, Santo Andre, SP, 09060-870, Brazil.
| | - João Batista Teixeira Rocha
- Toxicological Biochemistry Department, Federal University of Santa Maria, Roraima Avenue, 1000, Cidade Universitária, Camobi, Santa Maria, RS, 97105-900, Brazil
| | - Juliana Sartori Bonini
- Campus CEDETEG, Pharmacy Department, Midwest State University, Simeão Camargo Varella de Sá, Vila Carli, Guarapuava, PR, 85040-080, Brazil
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Vida C, Martinez de Toda I, Garrido A, Carro E, Molina JA, De la Fuente M. Impairment of Several Immune Functions and Redox State in Blood Cells of Alzheimer's Disease Patients. Relevant Role of Neutrophils in Oxidative Stress. Front Immunol 2018; 8:1974. [PMID: 29375582 PMCID: PMC5768621 DOI: 10.3389/fimmu.2017.01974] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/20/2017] [Indexed: 12/28/2022] Open
Abstract
Since aging is considered the most risk factor for sporadic Alzheimer’s Disease (AD), the age-related impairment of the immune system (immunosenescence), based on a chronic oxidative-inflammatory stress situation, could play a key role in the development and progression of AD. Although AD is accompanied by systemic disturbance, reflecting the damage in the brain, the changes in immune response and redox-state in different types of blood cells in AD patients have been scarcely studied. The aim was to analyze the variations in several immune functions and oxidative-inflammatory stress and damage parameters in both isolated peripheral neutrophils and mononuclear blood cells, as well as in whole blood cells, from patients diagnosed with mild (mAD) and severe AD, and of age-matched controls (elderly healthy subjects) as well as of adult controls. The cognitive decline of all subjects was determined by Mini-Mental State Examination (MMSE) test (mAD stage was established at 20 ≤ MMSE ≤ 23 score; AD stage at <18 MMSE; elderly subjects >27 MMSE). The results showed an impairment of the immune functions of human peripheral blood neutrophils and mononuclear cells of mAD and AD patients in relation to healthy elderly subjects, who showed the typical immunosenescence in comparison with the adult individuals. However, several alterations were only observed in severe AD patients (lower chemotaxis, lipopolysaccharide lymphoproliferation, and interleukin (IL)-10 release; higher basal proliferation, tumor necrosis factor (TNF)-α release, and IL-10/TNF-α ratio), others only in mAD subjects (higher adherence), meanwhile others appeared in both mAD and AD patients (lower phytohemaglutinin lymphoproliferation and higher IL-6 release). This impairment of immune functions could be mediated by: (1) the higher oxidative stress and damage also observed in blood cells from mAD and AD patients and in isolated neutrophils [lower glutathione (GSH) levels, high oxidized glutathione (GSSG)/GSH ratio, and GSSG and malondialdehyde contents], and (2) the higher release of basal pro-inflammatory cytokines (IL-6 and TNF-α) found in AD patients. Because the immune system parameters studied are markers of health and rate of aging, our results supported an accelerated immunosenescence in AD patients. We suggest the assessment of oxidative stress and function parameters in peripheral blood cells as well as in isolated neutrophils and mononuclear cells, respectively, as possible markers of AD progression.
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Affiliation(s)
- Carmen Vida
- Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Hospital Universitario12 de Octubre (i+12), Madrid, Spain
| | - Irene Martinez de Toda
- Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Hospital Universitario12 de Octubre (i+12), Madrid, Spain
| | - Antonio Garrido
- Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Hospital Universitario12 de Octubre (i+12), Madrid, Spain
| | - Eva Carro
- Instituto de Investigación Hospital Universitario12 de Octubre (i+12), Madrid, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - José Antonio Molina
- Instituto de Investigación Hospital Universitario12 de Octubre (i+12), Madrid, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Mónica De la Fuente
- Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Hospital Universitario12 de Octubre (i+12), Madrid, Spain
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64
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He L, Jiang Y, Liu K, Gomez-Murcia V, Ma X, Torrecillas A, Chen Q, Zhu X, Lesnefsky E, Gomez-Fernandez JC, Xu B, Zhang S. Insights into the Impact of a Membrane-Anchoring Moiety on the Biological Activities of Bivalent Compounds As Potential Neuroprotectants for Alzheimer's Disease. J Med Chem 2018; 61:777-790. [PMID: 29271648 DOI: 10.1021/acs.jmedchem.7b01284] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Bivalent compounds anchoring in different manners to the membrane were designed and biologically characterized to understand the contribution of the anchor moiety to their biological activity as neuroprotectants for Alzheimer's disease. Our results established that the anchor moiety is essential, and we identified a preference for diosgenin, as evidenced by 17MD. Studies in primary neurons and mouse brain mitochondria also identified 17MD as exhibiting activity on neuritic outgrowth and the state 3 oxidative rate of glutamate while preserving the coupling capacity of the mitochondria. Significantly, our studies demonstrated that the integrated bivalent structure is essential to the observed biological activities. Further studies employing bivalent compounds as probes in a model membrane also revealed the influence of the anchor moiety on how they interact with the membrane. Collectively, our results suggest diosgenin to be an optimal anchor moiety, providing bivalent compounds with promising pharmacology that have potential applications for Alzheimer's disease.
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Affiliation(s)
| | | | | | - Victoria Gomez-Murcia
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary, University of Murcia , Murcia, 30080, Spain
| | - Xiaopin Ma
- Department of Pathology, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Alejandro Torrecillas
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary, University of Murcia , Murcia, 30080, Spain
| | | | - Xiongwei Zhu
- Department of Pathology, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | | | - Juan C Gomez-Fernandez
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary, University of Murcia , Murcia, 30080, Spain
| | - Bin Xu
- Department of Biochemistry, Virginia Polytechnic Institute and State University , Blacksburg, Virginia 24061, United States
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Yako N, Young TR, Cottam Jones JM, Hutton CA, Wedd AG, Xiao Z. Copper binding and redox chemistry of the Aβ16 peptide and its variants: insights into determinants of copper-dependent reactivity. Metallomics 2017; 9:278-291. [PMID: 28145544 DOI: 10.1039/c6mt00299d] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The metal-binding sites of Aβ peptides are dictated primarily by the coordination preferences of the metal ion. Consequently, Cu(i) is typically bound with two His ligands in a linear mode while Cu(ii) forms a pseudo-square planar stereochemistry with the N-terminal amine nitrogen acting as an anchoring ligand. Several distinct combinations of other groups can act as co-ligands for Cu(ii). A population of multiple binding modes is possible with the equilibrium position shifting sensitively with solution pH and the nature of the residues in the N-terminal region. This work examined the Cu(ii) chemistry of the Aβ16 peptide and several variants that targeted these binding modes. The results are consistent with: (i) at pH < 7.8, the square planar site in CuII-Aβ16 consists primarily of a bidentate ligand provided by the carboxylate sidechain of Asp1 and the N-terminal amine supported by the imidazole sidechains of two His residues (designated here as component IA); it is in equilibrium with a less stable component IB in which the carboxylate ligand is substituted by the Asp1-Ala2 carbonyl oxygen. (ii) Both IA and IB convert to a common component II (apparent transition pKa ∼7.8 for IA and ∼6.5 for IB, respectively) featuring a tridentate ligand consisting of the N-terminal amine, the Asp1-Ala2 amide and the Ala2-Pro3 carbonyl; this stereochemistry is stabilized by two five-membered chelate rings. (iii) Component IA is stabilized for variant Aβ16-D1H, components I (both IA and IB) are imposed on Aβ16-A2P while the less stable IB is enforced on Aβ16-D1A (which is converted to component II at pH ∼6.5); (iv) components IA and IB share two His ligands with Cu(i) and are more reactive in redox catalysis than component II that features a highly covalent and less reactive amide N- ligand. The redox activity of IA is further enhanced for peptides with a His1 N-terminus that may act as a ligand for either Cu(i) or Cu(ii) with lower re-organization energy required for redox-shuttling. This study provided insights into the determinants that regulate the reactivity of Cu-Aβ complexes.
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Affiliation(s)
- Nineveh Yako
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Tessa R Young
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Jade M Cottam Jones
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Craig A Hutton
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Anthony G Wedd
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Zhiguang Xiao
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
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66
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Kim JE, Kang TC. p47Phox/CDK5/DRP1-Mediated Mitochondrial Fission Evokes PV Cell Degeneration in the Rat Dentate Gyrus Following Status Epilepticus. Front Cell Neurosci 2017; 11:267. [PMID: 28919853 PMCID: PMC5585136 DOI: 10.3389/fncel.2017.00267] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 08/21/2017] [Indexed: 01/31/2023] Open
Abstract
Parvalbumin (PV) is one of the calcium-binding proteins, which plays an important role in the responsiveness of inhibitory neurons to an adaptation to repetitive spikes. Furthermore, PV neurons are highly vulnerable to status epilepticus (SE, prolonged seizure activity), although the underlining mechanism remains to be clarified. In the present study, we found that p47Phox expression was transiently and selectively increased in PV neurons 6 h after SE. This up-regulated p47Phox expression was accompanied by excessive mitochondrial fission. In this time point, CDK5-tyrosine 15 and dynamin-related protein 1 (DRP1)-serine 616 phosphorylations were also increased in PV cells. Apocynin (a p47Phox inhibitor) effectively mitigated PV cell loss via inhibition of CDK5/DRP1 phosphorylations and mitochondrial fragmentation induced by SE. Roscovitine (a CDK5 inhibitor) and Mdivi-1 (a DRP1 inhibitor) attenuated SE-induced PV cell loss by inhibiting aberrant mitochondrial fission. These findings suggest that p47Phox/CDK5/DRP1 may be one of the important upstream signaling pathways in PV cell degeneration induced by SE via excessive mitochondrial fragmentation.
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Affiliation(s)
- Ji-Eun Kim
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym UniversityChuncheon, South Korea
| | - Tae-Cheon Kang
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym UniversityChuncheon, South Korea
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67
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Wang J, Cai P, Yang XL, Li F, Wu JJ, Kong LY, Wang XB. Novel cinnamamide-dibenzylamine hybrids: Potent neurogenic agents with antioxidant, cholinergic, and neuroprotective properties as innovative drugs for Alzheimer's disease. Eur J Med Chem 2017; 139:68-83. [PMID: 28800459 DOI: 10.1016/j.ejmech.2017.07.077] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/31/2017] [Accepted: 07/31/2017] [Indexed: 12/13/2022]
Abstract
By using fragments endowed with interesting and complementary properties for the treatment of Alzheimer's disease (AD), a novel series of cinnamamide-dibenzylamine hybrids have been designed, synthesized, and evaluated biologically. In vitro assay indicated that most of the target compounds exhibited a significant ability to inhibit ChEs, strong potency inhibitory of self-induced β-amyloid (Aβ) aggregation and to act as potential antioxidants and biometal chelators. A Lineweaver-Burk plot and molecular modeling study showed that compound 7f targeted both the CAS and PAS of AChE. In addition, compound 7f could chelate metal ions, reduce PC12 cells death induced by oxidative stress and penetrate the blood-brain barrier (BBB). Overall, all of these outstanding in vitro results in combination with promising in vivo outcomes highlighted derivative 7f as the lead structure worthy of further investigation.
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Affiliation(s)
- Jin Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Pei Cai
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Xue-Lian Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Fan Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Jia-Jia Wu
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
| | - Xiao-Bing Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
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68
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RAGE-Specific Inhibitor FPS-ZM1 Attenuates AGEs-Induced Neuroinflammation and Oxidative Stress in Rat Primary Microglia. Neurochem Res 2017; 42:2902-2911. [DOI: 10.1007/s11064-017-2321-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 05/22/2017] [Accepted: 06/02/2017] [Indexed: 12/13/2022]
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69
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Oliveira J, Costa M, de Almeida MSC, da Cruz e Silva OA, Henriques AG. Protein Phosphorylation is a Key Mechanism in Alzheimer’s Disease. J Alzheimers Dis 2017; 58:953-978. [DOI: 10.3233/jad-170176] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Joana Oliveira
- Department of Medical Sciences, Neuroscience and Signalling Laboratory, iBiMED, University of Aveiro, Aveiro, Portugal
| | - Márcio Costa
- Department of Medical Sciences, Neuroscience and Signalling Laboratory, iBiMED, University of Aveiro, Aveiro, Portugal
| | | | - Odete A.B. da Cruz e Silva
- Department of Medical Sciences, Neuroscience and Signalling Laboratory, iBiMED, University of Aveiro, Aveiro, Portugal
| | - Ana Gabriela Henriques
- Department of Medical Sciences, Neuroscience and Signalling Laboratory, iBiMED, University of Aveiro, Aveiro, Portugal
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70
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Li YL, Guo H, Zhao YQ, Li AF, Ren YQ, Zhang JW. Quercetin protects neuronal cells from oxidative stress and cognitive degradation induced by amyloid β-peptide treatment. Mol Med Rep 2017; 16:1573-1577. [PMID: 28586024 DOI: 10.3892/mmr.2017.6704] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 01/30/2017] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effect of quercetin on cytotoxicity and cognitive degradation induced by amyloid β(Aβ)‑peptide in mice. Using the 1,1-diphenyl-2‑picrylhydrazyl (DPPH) method and a Y‑maze assay, the radical quenching ability and effect on working memory were determined, respectively, of quercetin treatment following 4 days of Aβ administration. The acute oral toxicity was assessed used to determine the concentration of quercetin at which 50% lethality of the neuronal cells was induced. For determination of the effect of quercetin on degradation of learning and memory loss induced by Aβ, a passive avoidance test was used. The results revealed that quercetin was involved in the inhibition of DPPH radical activity and was found to reduce radical activity by 76.5%. Quercetin significantly protected PC12 neuronal cells from death induced by Aβ treatment. Treatment of mice with daily doses of 100 mg/kg body weight quercetin for 30 days significantly improved the degradation of learning and memory loss induced by Aβ. The acute oral dose of quercetin in mice was determined to be 575 mg/kg body weight. Therefore, quercetin was found to be of therapeutic value for the treatment of neurological disorders, including AD, although further investigations are required.
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Affiliation(s)
- Yan-Ling Li
- Department of Neurology, Zhengzhou First People's Hospital, Zhengzhou, Henan 450004, P.R. China
| | - Hua Guo
- Department of Medicine Imaging, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Yong-Qiang Zhao
- Department of Endocrinology, Anyang District Hospital, Anyang, Henan 455000, P.R. China
| | - Ai-Fan Li
- Department of Neurology, Zhengzhou First People's Hospital, Zhengzhou, Henan 450004, P.R. China
| | - Yue-Qin Ren
- Department of Radiology Magnetic Resonance, The Second Affiliated Hospital of Henan Traditional Chinese Medicine University, Zhengzhou, Henan 450000, P.R. China
| | - Jie-Wen Zhang
- Department of Neurology, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
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71
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Hendrick E, Peixoto P, Blomme A, Polese C, Matheus N, Cimino J, Frère A, Mouithys-Mickalad A, Serteyn D, Bettendorff L, Elmoualij B, De Tullio P, Eppe G, Dequiedt F, Castronovo V, Mottet D. Metabolic inhibitors accentuate the anti-tumoral effect of HDAC5 inhibition. Oncogene 2017; 36:4859-4874. [PMID: 28414307 DOI: 10.1038/onc.2017.103] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 12/17/2022]
Abstract
The US FDA approval of broad-spectrum histone deacetylase (HDAC) inhibitors has firmly laid the cancer community to explore HDAC inhibition as a therapeutic approach for cancer treatment. Hitting one HDAC member could yield clinical benefit but this required a complete understanding of the functions of the different HDAC members. Here we explored the consequences of specific HDAC5 inhibition in cancer cells. We demonstrated that HDAC5 inhibition induces an iron-dependent reactive oxygen species (ROS) production, ultimately leading to apoptotic cell death as well as mechanisms of mitochondria quality control (mitophagy and mitobiogenesis). Interestingly, adaptation of HDAC5-depleted cells to oxidative stress passes through reprogramming of metabolic pathways towards glucose and glutamine. Therefore, interference with both glucose and glutamine supply in HDAC5-inhibited cancer cells significantly increases apoptotic cell death and reduces tumour growth in vivo; providing insight into a valuable clinical strategy combining the selective inhibition of HDAC5 with various inhibitors of metabolism as a new therapy to kill cancer cells.
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Affiliation(s)
- E Hendrick
- University of Liege, GIGA-Molecular Biology of Diseases, Protein Signalisation and Interaction (PSI) Laboratory, Liège, Belgium
| | - P Peixoto
- University of Liege, GIGA-Cancer, Metastasis Research Laboratory (MRL), Liège, Belgium
| | - A Blomme
- University of Liege, GIGA-Cancer, Metastasis Research Laboratory (MRL), Liège, Belgium
| | - C Polese
- University of Liege, GIGA-Molecular Biology of Diseases, Protein Signalisation and Interaction (PSI) Laboratory, Liège, Belgium
| | - N Matheus
- University of Liege, GIGA-Molecular Biology of Diseases, Protein Signalisation and Interaction (PSI) Laboratory, Liège, Belgium
| | - J Cimino
- University of Liege, GIGA-Cancer, Laboratory of Tumor and Development Biology (LBTD), Liège, Belgium
| | - A Frère
- University of Liege, GIGA-Molecular Biology of Diseases, Protein Signalisation and Interaction (PSI) Laboratory, Liège, Belgium.,University of Liege, Laboratory of Pharmaceutical Technology and Biopharmacy (LTPB), Center for Interdisciplinary Research on Medicines (CIRM), Liège, Belgium
| | - A Mouithys-Mickalad
- University of Liege, Centre for Oxygen, R&D (CORD), Institute of Chemistry, Liège, Belgium
| | - D Serteyn
- University of Liege, Centre for Oxygen, R&D (CORD), Institute of Chemistry, Liège, Belgium
| | - L Bettendorff
- University of Liege, GIGA-Signal Neurosciences, Laboratory of Pathological Aging and Epilepsy, Liège, Belgium
| | - B Elmoualij
- University of Liege, Department of Human Histology-CRPP, Liège, Belgium
| | - P De Tullio
- University of Liege, Drug Research Center, Center for Interdisciplinary Research on Medicines (CIRM), Medicinal Chemistry Department, Liège, Belgium
| | - G Eppe
- University of Liege, CART-LSM, Inorganic Analytical Chemistry, Chemistry Department, Liège, Belgium
| | - F Dequiedt
- University of Liege, GIGA-Molecular Biology of Diseases, Protein Signalisation and Interaction (PSI) Laboratory, Liège, Belgium
| | - V Castronovo
- University of Liege, GIGA-Cancer, Metastasis Research Laboratory (MRL), Liège, Belgium
| | - D Mottet
- University of Liege, GIGA-Molecular Biology of Diseases, Protein Signalisation and Interaction (PSI) Laboratory, Liège, Belgium
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72
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Gameiro I, Michalska P, Tenti G, Cores Á, Buendia I, Rojo AI, Georgakopoulos ND, Hernández-Guijo JM, Teresa Ramos M, Wells G, López MG, Cuadrado A, Menéndez JC, León R. Discovery of the first dual GSK3β inhibitor/Nrf2 inducer. A new multitarget therapeutic strategy for Alzheimer's disease. Sci Rep 2017; 7:45701. [PMID: 28361919 PMCID: PMC5374710 DOI: 10.1038/srep45701] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 03/03/2017] [Indexed: 12/31/2022] Open
Abstract
The formation of neurofibrillary tangles (NFTs), oxidative stress and neuroinflammation have emerged as key targets for the treatment of Alzheimer’s disease (AD), the most prevalent neurodegenerative disorder. These pathological hallmarks are closely related to the over-activity of the enzyme GSK3β and the downregulation of the defense pathway Nrf2-EpRE observed in AD patients. Herein, we report the synthesis and pharmacological evaluation of a new family of multitarget 2,4-dihydropyrano[2,3-c]pyrazoles as dual GSK3β inhibitors and Nrf2 inducers. These compounds are able to inhibit GSK3β and induce the Nrf2 phase II antioxidant and anti-inflammatory pathway at micromolar concentrations, showing interesting structure-activity relationships. The association of both activities has resulted in a remarkable anti-inflammatory ability with an interesting neuroprotective profile on in vitro models of neuronal death induced by oxidative stress and energy depletion and AD. Furthermore, none of the compounds exhibited in vitro neurotoxicity or hepatotoxicity and hence they had improved safety profiles compared to the known electrophilic Nrf2 inducers. In conclusion, the combination of both activities in this family of multitarget compounds confers them a notable interest for the development of lead compounds for the treatment of AD.
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Affiliation(s)
- Isabel Gameiro
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina. Universidad Autónoma de Madrid, 28029 Madrid, Spain.,Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
| | - Patrycja Michalska
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina. Universidad Autónoma de Madrid, 28029 Madrid, Spain.,Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
| | - Giammarco Tenti
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
| | - Ángel Cores
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Izaskun Buendia
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina. Universidad Autónoma de Madrid, 28029 Madrid, Spain.,Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
| | - Ana I Rojo
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria La Paz (IdiPaz), Instituto de Investigaciones Biomédicas Alberto Sols UAM-CSIC y Departamento de Bioquímica, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Jesús M Hernández-Guijo
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina. Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - María Teresa Ramos
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Geoffrey Wells
- UCL School of Pharmacy, University College London, 29/39 Brunswick Square, London WC1N 1AX UK
| | - Manuela G López
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina. Universidad Autónoma de Madrid, 28029 Madrid, Spain.,Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
| | - Antonio Cuadrado
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria La Paz (IdiPaz), Instituto de Investigaciones Biomédicas Alberto Sols UAM-CSIC y Departamento de Bioquímica, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - J Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Rafael León
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina. Universidad Autónoma de Madrid, 28029 Madrid, Spain.,Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
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73
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Srivastava S, Singh D, Patel S, Singh MR. Role of enzymatic free radical scavengers in management of oxidative stress in autoimmune disorders. Int J Biol Macromol 2017; 101:502-517. [PMID: 28342757 DOI: 10.1016/j.ijbiomac.2017.03.100] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 02/03/2023]
Abstract
Autoimmune disorders are distinct with over production and accumulation of free radicals due to its undisclosed genesis. The cause of numerous disorders as cancer, arthritis, psoriasis, diabetes, alzheimer's, cardiovascular disease, Parkinson's, respiratory distress syndrome, colitis, crohn's, pulmonary fibrosis, obesity and ageing have been associated with immune dysfunction and oxidative stress. In an oxidative stress, reactive oxygen species generally provoke the series of oxidation at cellular level. The buildup of free radicals in turn triggers various inflammatory cells causing release of various inflammatory interleukins, cytokines, chemokines, and tumor necrosis factors which mediate signal transduction and transcription pathways as nuclear factor- kappa B (NF-κB), signal transducer and activator of transcription 3 (STAT3), hypoxia-inducible factor-1 (HIF-1α) and nuclear factor-erythroid 2-related factor (Nrf2). The imbalance could only be combat by supplementing natural defensive antioxidant enzymes such as superoxide dismutase and catalase. The efficiency of these enzymes is enhanced by use of colloidal carriers which include cellular carriers, vesicular and particulate systems like erythrocytes, leukocytes, platelets, liposomes, transferosomes, solid lipid nanoparticles, microspheres, emulsions. Thus this review provides a platform for understanding importance of antioxidant enzymes and its therapeutic applications in treatment of various autoimmune disorders.
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Affiliation(s)
- Shikha Srivastava
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chattissgarh, 492010, India
| | - Deependra Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chattissgarh, 492010, India
| | - Satish Patel
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chattissgarh, 492010, India
| | - Manju R Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chattissgarh, 492010, India.
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74
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Akintunde JK, Labaika RG. Neuro-Preventive Effect and Elevation of Cellular Adenosine Triphosphate by PUFAs from Pteleiosis suberosa Stem Bark on Mercury Sub-Acute Exposed Rats. J Acute Med 2017; 7:1-9. [PMID: 32995163 PMCID: PMC7517971 DOI: 10.6705/j.jacme.2017.0701.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVES Occupational/industrial exposure and experimental intoxication of mercury can produce neurological effects but Pteleiosis suberosa stem bark extract (PTSSBE) might be useful in the treatment of brain disorders because it's anti-ulcer, anti-inflammatory and antioxidant effects had been documented. METHODS The present study was therefore designed to investigate some phenolic constituents, evaluate its antioxidant properties and examine its reversal effects of PTSSBE on sub-acute mercury-induced brain toxicity. Rats were divided into five groups of 10 animals each. Group I was given distilled water; group II, III, IV and V was orally administered with mercury at a dose of 3.75 mg/kg body weight. Group III, IV and V were co-treated with PTSSBE of 25, 50 and 100 mg/ kg body weight respectively, for 10 days. RESULTS The results revealed that the stem bark extract exhibited high presence of antioxidants. Experimental exposure of rats to mercury significantly decreased the activities of catalase (CAT), lactate dehydrogenase (LDH), and the level of reduced glutathione (GSH), while the activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and the formation of malondialdehyde (MDA) were increased. These effects were reversed by co-administration with PTSSBE in mercury-induced brain toxicity in rats. CONCLUSION The protective effects of Pteleiosis suberosa, during mercury exposure suggest that these phenolics and PUFAs may be helpful in treating neurological disorders and other related cerebral toxicity implicated in depleted cellular ATP and oxidative stress.
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Affiliation(s)
- Jacob K Akintunde
- University of Ibadan Toxicology Unit, Department of Environmental Health Sciences, College of Medicine Nigeria
- Kwara State University Department of Biosciences and Biotechnology, Biochemistry Unit, College of Pure and Applied Sciences Malete Nigeria
| | - R G Labaika
- Kwara State University Department of Biosciences and Biotechnology, Biochemistry Unit, College of Pure and Applied Sciences Malete Nigeria
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75
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Xia CL, Wang N, Guo QL, Liu ZQ, Wu JQ, Huang SL, Ou TM, Tan JH, Wang HG, Li D, Huang ZS. Design, synthesis and evaluation of 2-arylethenyl-N-methylquinolinium derivatives as effective multifunctional agents for Alzheimer's disease treatment. Eur J Med Chem 2017; 130:139-153. [PMID: 28242549 DOI: 10.1016/j.ejmech.2017.02.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 02/14/2017] [Accepted: 02/16/2017] [Indexed: 10/20/2022]
Abstract
A series of 2-arylethenyl-N-methylquinolinium derivatives were designed and synthesized based on our previous research of 2-arylethenylquinoline analogues as multifunctional agents for the treatment of Alzheimer's disease (AD) (Eur. J. Med. Chem. 2015, 89, 349-361). The results of in vitro biological activity evaluation, including β-amyloid (Aβ) aggregation inhibition, cholinesterase inhibition, and antioxidant activity, showed that introduction of N-methyl in quinoline ring significantly improved the anti-AD potential of compounds. The optimal compound, compound a12, dramatically attenuated the cell death of glutamate-induced HT22 cells by preventing the generation of ROS and increasing the level of GSH. Most importantly, intragastric administration of a12•HAc was well tolerated at doses up to 2000 mg/kg and could traverse blood-brain barrier.
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Affiliation(s)
- Chun-Li Xia
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Ning Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Qian-Liang Guo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Zhen-Quan Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Shi-Liang Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Tian-Miao Ou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Jia-Heng Tan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Hong-Gen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Ding Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Zhi-Shu Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China.
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76
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Liao Q, Owen MC, Olubiyi OO, Barz B, Strodel B. Conformational Transitions of the Amyloid-β Peptide Upon Copper(II) Binding and pH Changes. Isr J Chem 2017. [DOI: 10.1002/ijch.201600108] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Qinghua Liao
- Institute of Complex Systems: Structural Biochemistry (ICS-6); Forschungszentrum Jülich GmbH; 52425 Jülich Germany
| | - Michael C. Owen
- Institute of Complex Systems: Structural Biochemistry (ICS-6); Forschungszentrum Jülich GmbH; 52425 Jülich Germany
| | - Olujide O. Olubiyi
- Department of Pharmacology and Therapeutics; College of Medicine and Health Sciences; Afe Babalola University; Nigeria
| | - Bogdan Barz
- Institute of Complex Systems: Structural Biochemistry (ICS-6); Forschungszentrum Jülich GmbH; 52425 Jülich Germany
- Institute of Theoretical and Computational Chemistry; Heinrich Heine University Düsseldorf; 40225 Düsseldorf Germany
| | - Birgit Strodel
- Institute of Complex Systems: Structural Biochemistry (ICS-6); Forschungszentrum Jülich GmbH; 52425 Jülich Germany
- Institute of Theoretical and Computational Chemistry; Heinrich Heine University Düsseldorf; 40225 Düsseldorf Germany
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77
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Chauhan P, Muralidharan SB, Velappan AB, Datta D, Pratihar S, Debnath J, Ghosh KS. Inhibition of copper-mediated aggregation of human γD-crystallin by Schiff bases. J Biol Inorg Chem 2017; 22:505-517. [DOI: 10.1007/s00775-016-1433-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 12/13/2016] [Indexed: 01/10/2023]
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78
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Cao R, Elrod LT, Lehane RL, Kim E, Karlin KD. A Peroxynitrite Dicopper Complex: Formation via Cu-NO and Cu-O 2 Intermediates and Reactivity via O-O Cleavage Chemistry. J Am Chem Soc 2016; 138:16148-16158. [PMID: 27960334 DOI: 10.1021/jacs.6b10689] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A mixed-valent Cu(I)Cu(II) complex, [CuI,II2(UN-O-)]2+ (1), reacts with NO(g) at -80 °C to form [CuI,II2(UN-O-)(NO)]2+ (2), best described as a mixed-valent nitrosyl complex that has a ν(N-O) band at 1670 cm-1 in its infrared (IR) spectrum. Complex 2 undertakes a one-electron oxidation via the addition of O2(g) to generate a new intermediate, best described as a superoxide and nitrosyl adduct, [CuII2(UN-O-)(NO)(O2-)]2+ (3), based on its distinctively blue-shifted ν(N-O) band at 1853 cm-1. Over the course of 20 min at -80 °C, 3 is converted to the peroxynitrite (PN) complex [CuII2(UN-O-)(-OON═O)]2+ (4), which was characterized by low-temperature electrospray ionization mass spectrometry (ESI-MS) and IR spectroscopy; ν(N-O) absorptions at 1520 and 1640 cm-1 have been assigned as cis- and trans-conformers of the PN ligand in 4. Alternatively, the superoxide complex [CuII2(UN-O-)(O2•-)]2+ (5) is found to react with NO(g) to generate the same intermediate superoxide and nitrosyl adduct 3 (based on IR criteria), which likewise converts to the same PN complex 4. The O-O bond in 4 undergoes heterolysis in dichloromethane solvent and is postulated to produce nitronium ion, leading to ortho-nitration of 2,4-di-tert-butylphenol (DTBP). However, in 2-methyltetrahydrofuran as solvent, the O-O bond undergoes homolysis to generate •NO2 (detected spectrophotometrically) and a putative higher-valent complex, [CuII,III2(UN-O-)(O2-)]2+, that abstracts a H-atom from DTBP to give [CuII2(UN-O-)(OH)]2+ and a phenoxyl radical. The latter may dimerize to form the bis-phenol observed experimentally or couple with the •NO2 present, leading to o-phenol nitration.
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Affiliation(s)
- Rui Cao
- Department of Chemistry, Johns Hopkins University , Baltimore, Maryland 21218, United States
| | - Lee Taylor Elrod
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Ryan L Lehane
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Eunsuk Kim
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Kenneth D Karlin
- Department of Chemistry, Johns Hopkins University , Baltimore, Maryland 21218, United States
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79
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Park TS, Ryu YK, Park HY, Kim JY, Go J, Noh JR, Kim YH, Hwang JH, Choi DH, Oh WK, Lee CH, Kim KS. Humulus japonicus inhibits the progression of Alzheimer's disease in a APP/PS1 transgenic mouse model. Int J Mol Med 2016; 39:21-30. [PMID: 28004107 PMCID: PMC5179182 DOI: 10.3892/ijmm.2016.2804] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 11/04/2016] [Indexed: 12/12/2022] Open
Abstract
Humulus japonicus Siebold & Zucc. (HJ) has traditionally been administered to patients with pulmonary disease, skin disease and hypertension in Korea, and it is considered to exert anti-inflammatory, antioxidant, antimicrobial and anti-mycobacterial effects. However, its effects against Alzheimer's disease (AD) have yet to be explored. Thus, this study was carried out to investigate whether HJ has a beneficial effect on the progression of AD in an animal model. A methanolic extract of HJ (500 mg/kg/day) was intragastrically administered to 5-month-old APP/PS1 transgenic (Tg-APP/PS1) mice for 2.5 months. Novel object recognition and Y-maze alteration tests were used to assess cognitive function, and an immunohistochemical assay was performed to assess amyloid β (Aβ) deposition, tau phosphorylation and gliosis. An in vitro assay using a microglial cell line was also performed to investigate the anti-inflammatory effects of HJ. Our results revealed that HJ significantly decreased the mRNA and protein expression levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6 and inducible nitric oxide synthase (iNOS) induced by lipopolysaccharide in the microglial cell line. The administration of HJ for 2 months improved the cognitive function of Tg-APP/PS1 mice. HJ notably reduced the area occupied by Aβ and neurofibrillary tangles, and the number of activated astrocytes and microglia in the cortex of Tg-APP/PS1 mice. The findings of our study suggest that HJ has the therapeutic potential to inhibit the progression of AD and to improve cognitive deterioration in Tg-APP/PS1 mice.
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Affiliation(s)
- Tae-Shin Park
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Young-Kyoung Ryu
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Hye-Yeon Park
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jae Yun Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jun Go
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jung-Ran Noh
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Yong-Hoon Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jung Hwan Hwang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Dong-Hee Choi
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Won-Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Kyoung-Shim Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
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80
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Recent progress in repositioning Alzheimer's disease drugs based on a multitarget strategy. Future Med Chem 2016; 8:2113-2142. [PMID: 27774814 DOI: 10.4155/fmc-2016-0103] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Alzheimer's disease (AD) is a serious progressive neurological disorder, characterized by impaired cognition and profound irreversible memory loss. The multifactorial nature of AD and the absence of a cure so far have stimulated medicinal chemists worldwide to follow multitarget drug-design strategies based on repositioning approved drugs. This review describes a summary of recently published works focused on tailoring new derivatives of US FDA-approved acetylcholinesterase inhibitors, in addition to huperzine (a drug approved in China), either by hybridization with other pharmacophore elements (to hit more AD targets), or by combination of two FDA-approved drugs. Besides the capacity for improving the cholinergic activity, these polyfunctional derivatives are also able to tackle other important neuroprotective properties, such as anti-β-amyloid aggregation, scavenging of radical oxygen species, modulation of redox-active metals or inhibition of monoamine oxidase, thereby resulting in potentially novel and more effective therapeutics for the treatment of AD.
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81
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The flavonoid fisetin as an anticancer agent targeting the growth signaling pathways. Eur J Pharmacol 2016; 789:8-16. [DOI: 10.1016/j.ejphar.2016.07.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 06/30/2016] [Accepted: 07/01/2016] [Indexed: 12/29/2022]
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82
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Liu K, Chojnacki JE, Wade EE, Saathoff JM, Lesnefsky EJ, Chen Q, Zhang S. Bivalent Compound 17MN Exerts Neuroprotection through Interaction at Multiple Sites in a Cellular Model of Alzheimer's Disease. J Alzheimers Dis 2016; 47:1021-33. [PMID: 26401780 DOI: 10.3233/jad-150242] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Multiple pathogenic factors have been suggested to play a role in the development of Alzheimer's disease (AD). The multifactorial nature of AD also suggests the potential use of compounds with polypharmacology as effective disease-modifying agents. Recently, we have developed a bivalent strategy to include cell membrane anchorage into the molecular design. Our results demonstrated that the bivalent compounds exhibited multifunctional properties and potent neuroprotection in a cellular AD model. Herein, we report the mechanistic exploration of one of the representative bivalent compounds, 17MN, in MC65 cells. Our results established that MC65 cells die through a necroptotic mechanism upon the removal of tetracycline (TC). Furthermore, we have shown that mitochondrial membrane potential and cytosolic Ca2+ levels are increased upon removal of TC. Our bivalent compound 17MN can reverse such changes and protect MC65 cells from TC removal induced cytotoxicity. The results also suggest that 17MN may function between the Aβ species and RIPK1 in producing its neuroprotection. Colocalization studies employing a fluorescent analog of 17MN and confocal microscopy demonstrated the interactions of 17MN with both mitochondria and endoplasmic reticulum, thus suggesting that 17MN exerts its neuroprotection via a multiple-site mechanism in MC65 cells. Collectively, these results strongly support our original design rationale of bivalent compounds and encourage further optimization of this bivalent strategy to develop more potent analogs as novel disease-modifying agents for AD.
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Affiliation(s)
- Kai Liu
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Jeremy E Chojnacki
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Emily E Wade
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - John M Saathoff
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Edward J Lesnefsky
- Department of Medicine, Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University, Richmond, VA, USA.,Biochemistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Qun Chen
- Department of Medicine, Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University, Richmond, VA, USA
| | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, USA
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83
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Majkutewicz I, Kurowska E, Podlacha M, Myślińska D, Grembecka B, Ruciński J, Plucińska K, Jerzemowska G, Wrona D. Dimethyl fumarate attenuates intracerebroventricular streptozotocin-induced spatial memory impairment and hippocampal neurodegeneration in rats. Behav Brain Res 2016; 308:24-37. [DOI: 10.1016/j.bbr.2016.04.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 04/04/2016] [Accepted: 04/09/2016] [Indexed: 11/26/2022]
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84
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Chiang MC, Nicol CJ, Cheng YC, Lin KH, Yen CH, Lin CH. Rosiglitazone activation of PPARγ-dependent pathways is neuroprotective in human neural stem cells against amyloid-beta–induced mitochondrial dysfunction and oxidative stress. Neurobiol Aging 2016; 40:181-190. [DOI: 10.1016/j.neurobiolaging.2016.01.132] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 12/04/2015] [Accepted: 01/30/2016] [Indexed: 12/24/2022]
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85
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Saathoff JM, Liu K, Chojnacki JE, He L, Chen Q, Lesnefsky EJ, Zhang S. Mechanistic Insight of Bivalent Compound 21MO as Potential Neuroprotectant for Alzheimer's Disease. Molecules 2016; 21:412. [PMID: 27023508 PMCID: PMC4831581 DOI: 10.3390/molecules21040412] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 03/18/2016] [Accepted: 03/23/2016] [Indexed: 12/18/2022] Open
Abstract
We have recently developed a bivalent strategy to provide novel compounds that potentially target multiple risk factors involved in the development of Alzheimer’s disease (AD). Our previous studies employing a bivalent compound with a shorter spacer (17MN) implicated that this compound can localize into mitochondria and endoplasmic reticulum (ER), thus interfering with the change of mitochondria membrane potential (MMP) and Ca2+ levels in MC65 cells upon removal of tetracycline (TC). In this report, we examined the effects by a bivalent compound with a longer spacer (21MO) in MC65 cells. Our results demonstrated that 21MO suppressed the change of MMP, possibly via interaction with the mitochondrial complex I in MC65 cells. Interestingly, 21MO did not show any effects on the Ca2+ level upon TC removal in MC65 cells. Our previous studies suggested that the mobilization of Ca2+ in MC65 cells, upon withdraw of TC, originated from ER, so the results implicated that 21MO may preferentially interact with mitochondria in MC65 cells under the current experimental conditions. Collectively, the results suggest that bivalent compounds with varied spacer length and cell membrane anchor moiety may exhibit neuroprotective activities via different mechanisms of action.
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Affiliation(s)
- John M Saathoff
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA.
| | - Kai Liu
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA.
| | - Jeremy E Chojnacki
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA.
| | - Liu He
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA.
| | - Qun Chen
- Department of Medicine, Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University, Richmond, VA 23298, USA.
| | - Edward J Lesnefsky
- Department of Medicine, Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University, Richmond, VA 23298, USA.
- Department of Biochemistry, Virginia Commonwealth University, Richmond, VA 23298, USA.
| | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA.
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86
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Lu N, Ding Y, Tian R, Peng YY. Inhibition of myeloperoxidase-mediated oxidative damage by nitrite in SH-SY5Y cells: Relevance to neuroprotection in neurodegenerative diseases. Eur J Pharmacol 2016; 780:142-7. [PMID: 27020551 DOI: 10.1016/j.ejphar.2016.03.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 03/14/2016] [Accepted: 03/23/2016] [Indexed: 01/15/2023]
Abstract
Myeloperoxidase (MPO) and MPO-catalyzed hypochlorous acid (HOCl) is elevated in many neurodegenerative diseases, and lead to severe tissue injuries. Nitrite (NO2(-)) is a widespread inorganic molecule that has recently been proposed as a direct NO donor to exert antioxidant properties in vivo and vitro. Since NO2(-) and MPO (and/or HOCl) were important mediators in brain function and disease, we investigated the effects of NO2(-) on MPO-mediated damage to human neuroblastoma SH-SY5Y cells. Here, we showed that exposure of SH-SY5Y cells to MPO (or HOCl) resulted in a significant loss in viability, ATP and glutathione levels, and treatment of neuronal cells with NO2(-) substantially attenuated MPO (or HOCl)-dependent cellular toxicity. The protective effects of NO2(-) on MPO (or HOCl)-induced cytotoxicity were because that (1) NO2(-) at high concentrations competed effectively with Cl(-) for MPO, thus limiting OCl(-) production by the enzyme; (2) HOCl was removed by reacting with NO2(-), forming less damaging compound; (3) NO2(-) significantly inhibited MPO-mediated inactivation of brain protein (enolase) and protein oxidation. Therefore, NO2(-) could show novel protective effects in some neurodegenerative diseases by preventing MPO-mediated oxidative damage.
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Affiliation(s)
- Naihao Lu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China.
| | - Yun Ding
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Rong Tian
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Yi-Yuan Peng
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China.
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87
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Di Martino RMC, De Simone A, Andrisano V, Bisignano P, Bisi A, Gobbi S, Rampa A, Fato R, Bergamini C, Perez DI, Martinez A, Bottegoni G, Cavalli A, Belluti F. Versatility of the Curcumin Scaffold: Discovery of Potent and Balanced Dual BACE-1 and GSK-3β Inhibitors. J Med Chem 2016; 59:531-44. [PMID: 26696252 DOI: 10.1021/acs.jmedchem.5b00894] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The multitarget approach has gained increasing acceptance as a useful tool to address complex and multifactorial maladies such as Alzheimer's disease (AD). The concurrent inhibition of the validated AD targets β-secretase (BACE-1) and glycogen synthase kinase-3β (GSK-3β) by attacking both β-amyloid and tau protein cascades has been identified as a promising AD therapeutic strategy. In our study, curcumin was identified as a lead compound for the simultaneous inhibition of both targets; therefore, synthetic efforts were dedicated to obtaining a small library of novel curcumin-based analogues, and a number of potent and balanced dual-target inhibitors were obtained. In particular, 2, 6, and 7 emerged as promising drug candidates endowed with neuroprotective potential and brain permeability. Notably, for some new compounds the symmetrical diketo and the β-keto-enol tautomeric forms were purposely isolated and tested in vitro, allowing us to gain insight into the key requirements for BACE-1 and GSK-3β inhibition.
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Affiliation(s)
- Rita Maria Concetta Di Martino
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy
| | - Angela De Simone
- Department for Life Quality Studies, Alma Mater Studiorum - University of Bologna , Corso D'Augusto 237, 47921 Rimini, Italy
| | - Vincenza Andrisano
- Department for Life Quality Studies, Alma Mater Studiorum - University of Bologna , Corso D'Augusto 237, 47921 Rimini, Italy
| | - Paola Bisignano
- Istituto Italiano di Tecnologia , D3, via Morego 30, 16163 Genova, Italy
| | - Alessandra Bisi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy
| | - Silvia Gobbi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy
| | - Angela Rampa
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy
| | - Romana Fato
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy
| | - Christian Bergamini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy
| | - Daniel I Perez
- Centro de Investigaciones Biologicas, CSIC , Ramiro de Maetzu 9, 28040 Madrid, Spain
| | - Ana Martinez
- Centro de Investigaciones Biologicas, CSIC , Ramiro de Maetzu 9, 28040 Madrid, Spain
| | - Giovanni Bottegoni
- Istituto Italiano di Tecnologia , D3, via Morego 30, 16163 Genova, Italy
| | - Andrea Cavalli
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy.,Istituto Italiano di Tecnologia , D3, via Morego 30, 16163 Genova, Italy
| | - Federica Belluti
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna , Via Belmeloro 6, 40126 Bologna, Italy
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88
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García-Ayllón MS, Botella-López A, Cuchillo-Ibañez I, Rábano A, Andreasen N, Blennow K, Ávila J, Sáez-Valero J. HNK-1 Carrier Glycoproteins Are Decreased in the Alzheimer's Disease Brain. Mol Neurobiol 2016; 54:188-199. [PMID: 26738850 DOI: 10.1007/s12035-015-9644-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 12/16/2015] [Indexed: 12/30/2022]
Abstract
The human natural killer-1 (HNK-1), 3-sulfonated glucuronic acid, is a glycoepitope marker of cell adhesion that participates in cell-cell and cell-extracellular matrix interactions and in neurite growth. Very little is known about the regulation of the HNK-1 glycan in neurodegenerative disease, particularly in Alzheimer's disease (AD). In this study, we investigate changes in the levels of HNK-1 carrier glycoproteins in AD. We demonstrate an overall decrease in HNK-1 immunoreactivity in glycoproteins extracted from the frontal cortex of AD subjects, compared with levels from non-demented controls (NDC). Immunoblotting of ventricular post-mortem and lumbar ante-mortem cerebrospinal fluid with HNK-1 antibodies indicate similar levels of carrier glycoproteins in AD and NDC samples. Decrease in HNK-1 carrier glycoproteins were not paralleled by changes in messenger RNA (mRNA) levels of the enzymes involved in the synthesis of the glycoepitope, β-1,4-galactosyltransferase (β4GalT), glucuronyltransferases GlcAT-P and GlcAT-S, or sulfotransferase HNK-1ST. Over-expression of amyloid precursor protein in Tg2576 transgenic mice and in vitro treatment of SH-SY5Y neuroblastoma cells with the amyloidogenic Aβ42 peptide resulted in a decrease in HNK-1 immunoreactivity levels in brain and cellular extracts, whereas the levels of soluble HNK-1 glycoproteins detected in culture media were not affected by Aβ treatment. HNK-1 levels remain unaffected in the brain extracts of Tg-VLW mice, a model of mutant hyperphosphorylated tau, and in SH-SY5Y cells over-expressing hyperphosphorylated wild-type tau. These results provide evidence that cellular levels of HNK-1 carrier glycoforms are decreased in the brain of AD subjects, probably influenced by the β-amyloid protein.
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Affiliation(s)
- María-Salud García-Ayllón
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, Sant Joan d'Alacant, Spain. .,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Sant Joan d'Alacant, Spain. .,Unidad de Investigación, Hospital General Universitario de Elche, FISABIO, Elche, Spain.
| | - Arancha Botella-López
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, Sant Joan d'Alacant, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Sant Joan d'Alacant, Spain
| | - Inmaculada Cuchillo-Ibañez
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, Sant Joan d'Alacant, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Sant Joan d'Alacant, Spain
| | - Alberto Rábano
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Sant Joan d'Alacant, Spain.,Banco de Tejidos de la Fundación CIEN, CIEN Foundation, Carlos III Institute of Health, Alzheimer Center Reina Sofia Foundation, Madrid, Spain
| | - Niels Andreasen
- Karolinska Institute-Alzheimer Disease Research center, Stockholm, Sweden
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Mölndal, Sweden
| | - Jesús Ávila
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Sant Joan d'Alacant, Spain.,Centro de Biología Molecular "Severo Ochoa", Universidad, Autónoma de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, Madrid, Spain
| | - Javier Sáez-Valero
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, Sant Joan d'Alacant, Spain. .,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Sant Joan d'Alacant, Spain.
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89
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Kesarwala AH, Krishna MC, Mitchell JB. Oxidative stress in oral diseases. Oral Dis 2016; 22:9-18. [PMID: 25417961 PMCID: PMC4442080 DOI: 10.1111/odi.12300] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 11/14/2014] [Accepted: 11/14/2014] [Indexed: 01/10/2023]
Abstract
Oxidative species, including reactive oxygen species (ROS), are components of normal cellular metabolism and are required for intracellular processes as varied as proliferation, signal transduction, and apoptosis. In the situation of chronic oxidative stress, however, ROS contribute to various pathophysiologies and are involved in multiple stages of carcinogenesis. In head and neck cancers specifically, many common risk factors contribute to carcinogenesis via ROS-based mechanisms, including tobacco, areca quid, alcohol, and viruses. Given their widespread influence on the process of carcinogenesis, ROS and their related pathways are attractive targets for intervention. The effects of radiation therapy, a central component of treatment for nearly all head and neck cancers, can also be altered via interfering with oxidative pathways. These pathways are also relevant to the development of many benign oral diseases. In this review, we outline how ROS contribute to pathophysiology with a focus toward head and neck cancers and benign oral diseases, describing potential targets and pathways for intervention that exploit the role of oxidative species in these pathologic processes.
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Affiliation(s)
- Aparna H. Kesarwala
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Murali C. Krishna
- Radiation Biology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - James B. Mitchell
- Radiation Biology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
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90
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Reybier K, Ayala S, Alies B, Rodrigues JV, Bustos Rodriguez S, La Penna G, Collin F, Gomes CM, Hureau C, Faller P. Free Superoxide is an Intermediate in the Production of H2O2 by Copper(I)-Aβ Peptide and O2. Angew Chem Int Ed Engl 2015; 55:1085-9. [PMID: 26629876 DOI: 10.1002/anie.201508597] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 11/06/2022]
Abstract
Oxidative stress is considered as an important factor and an early event in the etiology of Alzheimer's disease (AD). Cu bound to the peptide amyloid-β (Aβ) is found in AD brains, and Cu-Aβ could contribute to this oxidative stress, as it is able to produce in vitro H2O2 and HO˙ in the presence of oxygen and biological reducing agents such as ascorbate. The mechanism of Cu-Aβ-catalyzed H2O2 production is however not known, although it was proposed that H2O2 is directly formed from O2 via a 2-electron process. Here, we implement an electrochemical setup and use the specificity of superoxide dismutase-1 (SOD1) to show, for the first time, that H2O2 production by Cu-Aβ in the presence of ascorbate occurs mainly via a free O2˙(-) intermediate. This finding radically changes the view on the catalytic mechanism of H2O2 production by Cu-Aβ, and opens the possibility that Cu-Aβ-catalyzed O2˙(-) contributes to oxidative stress in AD, and hence may be of interest.
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Affiliation(s)
- Karine Reybier
- University of Toulouse, UPS; UMR 152 PHARMA-DEV, 118 route de Narbonne, 31062, Toulouse cedex 9, France. .,IRD, UMR 152, 31062, Toulouse cedex 9, France.
| | - Sara Ayala
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Bruno Alies
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - João V Rodrigues
- Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.,Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | - Susana Bustos Rodriguez
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Giovanni La Penna
- CNR - National Research Council of Italy, ICCOM - Institute for Chemistry of Organo-Metallic Compounds, via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Fabrice Collin
- University of Toulouse, UPS; UMR 152 PHARMA-DEV, 118 route de Narbonne, 31062, Toulouse cedex 9, France.,IRD, UMR 152, 31062, Toulouse cedex 9, France.,CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Cláudio M Gomes
- Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.,Faculdade de Ciências, Biosystems and Integrative Sciences Institute, Department of Chemistry and Biochemistry, Universidade de Lisboa, Campo Grande, Lisboa, Portugal
| | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Peter Faller
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France. .,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France. .,Institute de Chimie (UMR 7177), 4 rue B. Pascal, 67081, Strasbourg, France.
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91
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Reybier K, Ayala S, Alies B, Rodrigues JV, Bustos Rodriguez S, La Penna G, Collin F, Gomes CM, Hureau C, Faller P. Free Superoxide is an Intermediate in the Production of H
2
O
2
by Copper(I)‐Aβ Peptide and O
2. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508597] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Karine Reybier
- University of Toulouse, UPS; UMR 152 PHARMA-DEV 118 route de Narbonne 31062 Toulouse cedex 9 France
- IRD, UMR 152 31062 Toulouse cedex 9 France
| | - Sara Ayala
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Bruno Alies
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - João V. Rodrigues
- Instituto Tecnologia Química e Biológica Universidade Nova de Lisboa Oeiras Portugal
- Harvard University Department of Chemistry and Chemical Biology Cambridge MA USA
| | - Susana Bustos Rodriguez
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Giovanni La Penna
- CNR – National Research Council of Italy ICCOM – Institute for Chemistry of Organo-Metallic Compounds via Madonna del Piano 10 50019 Sesto Fiorentino Firenze Italy
| | - Fabrice Collin
- University of Toulouse, UPS; UMR 152 PHARMA-DEV 118 route de Narbonne 31062 Toulouse cedex 9 France
- IRD, UMR 152 31062 Toulouse cedex 9 France
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Cláudio M. Gomes
- Instituto Tecnologia Química e Biológica Universidade Nova de Lisboa Oeiras Portugal
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute Department of Chemistry and Biochemistry Universidade de Lisboa, Campo Grande Lisboa Portugal
| | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Peter Faller
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
- Institute de Chimie (UMR 7177) 4 rue B. Pascal 67081 Strasbourg France
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92
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Association of the C47T Polymorphism in SOD2 with Amnestic Mild Cognitive Impairment and Alzheimer's Disease in Carriers of the APOEε4 Allele. DISEASE MARKERS 2015; 2015:746329. [PMID: 26696693 PMCID: PMC4678069 DOI: 10.1155/2015/746329] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 11/12/2015] [Accepted: 11/17/2015] [Indexed: 11/22/2022]
Abstract
Oxidative stress plays an important part in amnestic mild cognitive impairment (aMCI), the prodromal phase of Alzheimer's disease (AD). Recent evidence shows that polymorphisms in the SOD2 gene affect the elimination of the reactive oxygen species (ROS) generated in mitochondria. The aim of this study was to determine whether the functional rs4880 SNP in the SOD2 gene is a risk factor associated with aMCI and sporadic AD. 216 subjects with aMCI, 355 with AD, and 245 controls have been studied. The SNP rs4880 of the SOD2 gene was genotyped by RT-PCR and the APOE genotype was determined by PCR and RFLPs. Different multinomial logistic regression models were used to determine the risk levels for aMCI and AD. Although the T allele of the SOD2 rs4880 SNP gene (rs4880-T) is not an independent risk for aMCI or AD, this allele increases the risk to aMCI patients carrying at least one APOEε4 allele. Moreover, rs4880-T allele and APOEε4 allele combination has been found to produce an increased risk for AD compared to aMCI reference patients. These results suggest that APOEε4 and rs4880-T genotype may be a risk for aMCI and a predictor of progression from aMCI to AD.
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93
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Muthuraj B, Layek S, Balaji SN, Trivedi V, Iyer PK. Multiple function fluorescein probe performs metal chelation, disaggregation, and modulation of aggregated Aβ and Aβ-Cu complex. ACS Chem Neurosci 2015; 6:1880-91. [PMID: 26332658 DOI: 10.1021/acschemneuro.5b00205] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
An exceptional probe comprising indole-3-carboxaldehyde fluorescein hydrazone (FI) performs multiple tasks, namely, disaggregating amyloid β (Aβ) aggregates in different biomarker environments such as cerebrospinal fluid (CSF), Aβ1-40 fibrils, β-amyloid lysozyme aggregates (LA), and U87 MG human astrocyte cells. Additionally, the probe FI binds with Cu(2+) ions selectively, disrupts the Aβ aggregates that vary from few nanometers to micrometers, and prevents their reaggregation, thereby performing disaggregation and modulation of amyloid-β in the presence as well as absence of Cu(2+) ion. The excellent selectivity of probe FI for Cu(2+) was effectively utilized to modulate the assembly of metal-induced Aβ aggregates by metal chelation with the "turn-on" fluorescence via spirolactam ring opening of FI as well as the metal-free Aβ fibrils by noncovalent interactions. These results confirm that FI has exceptional ability to perform multifaceted tasks such as metal chelation in intracellular conditions using Aβ lysozyme aggregates in cellular environments by the disruption of β-sheet rich Aβ fibrils into disaggregated forms. Subsequently, it was confirmed that FI had the ability to cross the blood-brain barrier and it also modulated the metal induced Aβ fibrils in cellular environments by "turn-on" fluorescence, which are the most vital properties of a probe or a therapeutic agent. Furthermore, the morphology changes were examined by atomic force microscopy (AFM), polarizable optical microscopy (POM), fluorescence microscopy, and dynamic light scattering (DLS) studies. These results provide very valuable clues on the Aβ (CSF Aβ fibrils, Aβ1-40 fibrils, β-amyloid lysozyme aggregates) disaggregation behavior via in vitro studies, which constitute the first insights into intracellular disaggregation of Aβ by "turn-on" method thereby influencing amyloidogenesis.
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Affiliation(s)
- B. Muthuraj
- Department of Chemistry, and ‡Department of Biosciences
and Bioengineering, Indian Institute of Technology Guwahati-781039, Assam, India
| | - Sourav Layek
- Department of Chemistry, and ‡Department of Biosciences
and Bioengineering, Indian Institute of Technology Guwahati-781039, Assam, India
| | - S. N. Balaji
- Department of Chemistry, and ‡Department of Biosciences
and Bioengineering, Indian Institute of Technology Guwahati-781039, Assam, India
| | - Vishal Trivedi
- Department of Chemistry, and ‡Department of Biosciences
and Bioengineering, Indian Institute of Technology Guwahati-781039, Assam, India
| | - Parameswar Krishnan Iyer
- Department of Chemistry, and ‡Department of Biosciences
and Bioengineering, Indian Institute of Technology Guwahati-781039, Assam, India
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94
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Chojnacki JE, Liu K, Saathoff JM, Zhang S. Bivalent ligands incorporating curcumin and diosgenin as multifunctional compounds against Alzheimer's disease. Bioorg Med Chem 2015; 23:7324-31. [PMID: 26526742 DOI: 10.1016/j.bmc.2015.10.032] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/15/2015] [Accepted: 10/22/2015] [Indexed: 01/08/2023]
Abstract
In an effort to combat the multifaceted nature of Alzheimer's disease (AD) progression, a series of multifunctional, bivalent compounds containing curcumin and diosgenin were designed, synthesized, and biologically characterized. Screening results in MC65 neuroblastoma cells established that compound 38 with a spacer length of 17 atoms exhibited the highest protective potency with an EC50 of 111.7 ± 9.0 nM. A reduction in protective activity was observed as spacer length was increased up to 28 atoms and there is a clear structural preference for attachment to the methylene carbon between the two carbonyl moieties of curcumin. Further study suggested that antioxidative ability and inhibitory effects on amyloid-β oligomer (AβO) formation may contribute to the neuroprotective outcomes. Additionally, compound 38 was found to bind directly to Aβ, similar to curcumin, but did not form complexes with the common biometals Cu, Fe, and Zn. Altogether, these results give strong evidence to support the bivalent design strategy in developing novel compounds with multifunctional ability for the treatment of AD.
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Affiliation(s)
- Jeremy E Chojnacki
- School of Pharmacy-Department of Medicinal Chemistry, Virginia Commonwealth University, Biotech I, Suite 205, 800 E. Leigh St., PO Box 980540, Richmond, VA 23298, USA
| | - Kai Liu
- School of Pharmacy-Department of Medicinal Chemistry, Virginia Commonwealth University, Biotech I, Suite 205, 800 E. Leigh St., PO Box 980540, Richmond, VA 23298, USA
| | - John M Saathoff
- School of Pharmacy-Department of Medicinal Chemistry, Virginia Commonwealth University, Biotech I, Suite 205, 800 E. Leigh St., PO Box 980540, Richmond, VA 23298, USA
| | - Shijun Zhang
- School of Pharmacy-Department of Medicinal Chemistry, Virginia Commonwealth University, Biotech I, Suite 205, 800 E. Leigh St., PO Box 980540, Richmond, VA 23298, USA.
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95
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Lu N, Yang Q, Li J, Tian R, Peng YY. Inhibitory effect of human serum albumin on Cu-induced Aβ(40) aggregation and toxicity. Eur J Pharmacol 2015; 767:160-4. [PMID: 26463036 DOI: 10.1016/j.ejphar.2015.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/08/2015] [Accepted: 10/08/2015] [Indexed: 12/31/2022]
Abstract
It has been suggested that the aggregation and cytotoxicity of amyloid-β (Aβ) peptide with transition-metal ions in neuronal cells is involved in the development and progression of Alzheimer's disease (AD). As the most abundant protein in blood plasma and in cerebrospinal fluid, human serum albumin (HSA) can bind Aβ in vivo and subsequently inhibit Aβ fibril growth. However, the roles of albumin in Cu-induced Aβ aggregation and toxicity, and its potential biological relevance to AD therapy, were not stressed enough. Here, we showed that HSA was capable of binding Cu (I) with much higher affinity than Aβ, competitively inhibiting the interaction of Aβ and Cu ions. In the presence of biological reducing agent ascorbate, HSA inhibited Cu (II)/Cu (I)-mediated Aβ40 aggregation, reactive oxygen species production, and neurotoxicity. However, in the absence of Cu (II)/Cu (I), HSA could not effectively inhibit Aβ40 aggregation and neurotoxicity at 24 h (or less) incubation time, but decreased Aβ40 aggregation at much longer incubation (120 h). Our data suggested that through competitively decreasing Cu-Aβ interaction, HSA could effectively inhibit Cu (II)/Cu (I)-induced Aβ40 aggregation and neurotoxicity, and play important roles in regulating redox balance as well as metal homeostasis in AD prevention and therapy.
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Affiliation(s)
- Naihao Lu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, PR China.
| | - Qin Yang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, PR China
| | - Jiayu Li
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, PR China
| | - Rong Tian
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, PR China
| | - Yi-Yuan Peng
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education; Key Laboratory of Green Chemistry, Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, PR China.
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96
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Navarro E, Buendia I, Parada E, León R, Jansen-Duerr P, Pircher H, Egea J, Lopez MG. Alpha7 nicotinic receptor activation protects against oxidative stress via heme-oxygenase I induction. Biochem Pharmacol 2015. [DOI: 10.1016/j.bcp.2015.07.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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97
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Shariatizi S, Meratan AA, Ghasemi A, Nemat-Gorgani M. Inhibition of amyloid fibrillation and cytotoxicity of lysozyme fibrillation products by polyphenols. Int J Biol Macromol 2015; 80:95-106. [PMID: 26102331 DOI: 10.1016/j.ijbiomac.2015.06.030] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 06/16/2015] [Accepted: 06/17/2015] [Indexed: 12/13/2022]
Abstract
An increasing number of studies conducted under in vitro and in vivo conditions, have concluded that polyphenols, compounds frequently occurring in many herbs with antioxidant properties, prevent and reverse amyloid fibril formation. However, the mechanisms by which these natural products modulate the protein aggregation process are poorly understood. Herein, a range of techniques including thioflavin T (ThT) and ANS fluorescence assays, electron microscopy and circular dichroism have been employed to determine the efficacy of rosmarinic acid (RA) and resveratrol (Res) on the inhibition/reversion of fibrillogenesis and hindering cytotoxicity induced by protofibrils and amyloid fibrils of hen egg white lysozyme (HEWL). Results demonstrated that both polyphenols effectively inhibit fibrillogenesis and destabilize preformed fibrils of HEWL in a concentration-dependent manner. Cytotoxicity protection on PC12 cells was also observed using the MTT assay, ROS production assay, and phase-contrast microscopy. It is suggested that the mechanism underlying the inhibitory effects of RA and Res is to prevent hydrophobic interactions between HEWL amyloidogenic prefibrillar species, although additional studies is needed to elucidate the detailed mechanisms involved. A combination of antioxidative and anti-amyloidogenic properties of these molecules may provide them with the described neuroprotective capacities.
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Affiliation(s)
- Sajad Shariatizi
- Institute of Biochemistry and Biophysics, University of Tehran, P.O. Box 13145-1384, 1417614411 Tehran, Iran
| | - Ali Akbar Meratan
- Department of Biotechnology, Ramin University of Agricultural and Natural Resources, Khouzestan, Iran.
| | - Atiyeh Ghasemi
- Institute of Biochemistry and Biophysics, University of Tehran, P.O. Box 13145-1384, 1417614411 Tehran, Iran
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98
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Qi Z, Xu Y, Liang Z, Li S, Wang J, Wei Y, Dong B. Naringin ameliorates cognitive deficits via oxidative stress, proinflammatory factors and the PPARγ signaling pathway in a type 2 diabetic rat model. Mol Med Rep 2015; 12:7093-101. [PMID: 26300349 DOI: 10.3892/mmr.2015.4232] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 07/17/2015] [Indexed: 11/06/2022] Open
Abstract
Naringenin is a flavonoid polyphenolic compound, which facilitates the removal of free radicals, oxidative stress and inflammation. The present study aimed to obtain a better understanding of the effects of curcumin on the regulation of diabetes‑associated cognitive decline, and its underlying mechanisms. An experimental diabetes mellitus (DM) rat model was induced by streptozoticin (50 mg/kg). Following treatment with naringin (100 and 200 mg/kg) for 16 weeks, the body weight and blood glucose levels of the DM rats were measured. A morris water maze test was used to analyze the effects of naringin on the cognitive deficit of the DM rats. The levels of oxidative stress, proinflammatory factors, caspase‑3 and caspase‑9, and the protein expression of peroxisome proliferator‑activated receptor γ (PPARγ) were quantified in the DM rats using a commercially‑available kit and western blot assay, respectively. In addition, a GW9662 PPARγ inhibitor (0.3 mg/kg) was administered to the DM rats to determine whether PPARγ affected the effects of naringin on the cognitive deficit of the DM rats. The results demonstrated that naringin increased the body weight, blood glucose levels, and cognitive deficits of the DM rats. The levels of oxidative stress and proinflammatory factors in the naringin‑treated rats were significantly lower, compared with those of the DM rats. In addition, naringin activated the protein expression of PPARγ, and administration of the PPARγ inhibitor decreased the protein expression of PPARγ, and attenuated the effects of naringin on cognitive deficit. The results also demonstrated that naringin decreased the expression levels of caspase‑3 and caspase‑9 in the DM rats. These results suggested that naringin ameliorated cognitive deficits via oxidative stress, proinflammatory factors and the PPARγ signaling pathway in the type 2 diabetic rat model. Furthermore, oxidative stress, proinflammatory factors and PPARγ signaling may be involved in mediating these effects.
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Affiliation(s)
- Zhonghua Qi
- Department of Neurology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Yinghui Xu
- Department of Neurosurgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Zhanhua Liang
- Department of Neurology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Sheng Li
- Department of Neurology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Jie Wang
- Department of Neurosurgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Yi Wei
- Department of Neurosurgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Bin Dong
- Department of Neurosurgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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99
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Gerenu G, Liu K, Chojnacki JE, Saathoff JM, Martínez-Martín P, Perry G, Zhu X, Lee HG, Zhang S. Curcumin/melatonin hybrid 5-(4-hydroxy-phenyl)-3-oxo-pentanoic acid [2-(5-methoxy-1H-indol-3-yl)-ethyl]-amide ameliorates AD-like pathology in the APP/PS1 mouse model. ACS Chem Neurosci 2015; 6:1393-1399. [PMID: 25893520 DOI: 10.1021/acschemneuro.5b00082] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
In our efforts to develop hybrid compounds of curcumin and melatonin as potential disease-modifying agents for Alzheimer's disease (AD), a potent lead hybrid compound, Z-CM-I-1, has been recently identified and biologically characterized in vitro. In this work, we report the in vivo effects of Z-CM-I-1 on AD pathologies in an APP/PS1 transgenic AD model. Our studies demonstrated that Z-CM-I-1 significantly decreased the accumulation of Aβ in the hippocampus and cortex regions of the brain and reduced inflammatory responses and oxidative stress after treatment for 12 weeks at 50 mg/kg per dose via oral administration. Furthermore, Z-CM-I-1 significantly improved synaptic dysfunction evidenced by the increased expression of synaptic marker proteins, PSD95 and synaptophysin, indicating its protective effects on synaptic degeneration. Lastly, we demonstrated that Z-CM-I-1 significantly increased the expression level of complexes I, II, and IV of the mitochondria electron transport chain in the brain tissue of APP/PS1 mice. Collectively, these results clearly suggest that Z-CM-I-1 is orally available and exhibits multifunctional properties in vivo on AD pathologies, thus strongly encouraging further development of this lead compound as a potential disease-modifying agent for AD patients.
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Affiliation(s)
| | - Kai Liu
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Jeremy E. Chojnacki
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - John M. Saathoff
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Pablo Martínez-Martín
- Alzheimer Disease Research Unit, Alzheimer Center Reina Sofía Foundation, CIEN Foundation, Carlos III Institute of Health, 28071 Madrid, Spain
| | - George Perry
- College of Sciences, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | | | | | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States
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100
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Liu K, Zhang S. Highly Efficient Synthesis of 1,3-Dihydroxy-2-carboxycarbazole and Its Neuroprotective Effects. ACS Med Chem Lett 2015; 6:894-7. [PMID: 26288690 DOI: 10.1021/acsmedchemlett.5b00158] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/10/2015] [Indexed: 11/30/2022] Open
Abstract
Carbazoles represent a family of tricyclic compounds that widely appeared in nature. Numerous studies have revealed a diverse array of bioactivity associated with this scaffold. In the present study, a novel and highly efficient methodology for preparing 1,3-dihydroxy-2-carboxycarbazole from indole-3-acetic acid and Meldrum's acid was developed. Furthermore, biological characterization demonstrated that this multisubstituted carbazole analogue exhibited inhibitory activity on Aβ aggregation, antioxidative properties, and promising neuroprotective activities in a cellular model of Alzheimer's disease, thus further supporting the valuable application of this synthetic methodology in search for effective neuroprotectants.
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Affiliation(s)
- Kai Liu
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States
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