1
|
Kittilukkana A, Intakhad J, Pilapong C. The role of labile iron on brain proteostasis; could it be an early event of neurodegenerative disease? Arch Biochem Biophys 2024; 756:110020. [PMID: 38692471 DOI: 10.1016/j.abb.2024.110020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/20/2024] [Accepted: 04/27/2024] [Indexed: 05/03/2024]
Abstract
Iron deposits in the brain are a natural consequence of aging. Iron accumulation, especially in the form of labile iron, can trigger a cascade of adverse effects, eventually leading to neurodegeneration and cognitive decline. Aging also increases the dysfunction of cellular proteostasis. The question of whether iron alters proteostasis is now being pondered. Herein, we investigated the effect of ferric citrate, considered as labile iron, on various aspects of proteostasis of neuronal cell lines, and also established an animal model having a labile iron diet in order to evaluate proteostasis alteration in the brain along with behavioral effects. According to an in vitro study, labile iron was found to activate lysosome formation but inhibits lysosomal clearance function. Furthermore, the presence of labile iron can alter autophagic flux and can also induce the accumulation of protein aggregates. RNA-sequencing analysis further reveals the upregulation of various terms related to proteostasis along with neurodegenerative disease-related terms. According to an in vivo study, a labile iron-rich diet does not induce iron overload conditions and was not detrimental to the behavior of male Wistar rats. However, an iron-rich diet can promote iron accumulation in a region-dependent manner. By staining for autophagic markers and misfolding proteins in the cerebral cortex and hippocampus, an iron-rich diet was actually found to alter autophagy and induce an accumulation of misfolding proteins. These findings emphasize the importance of labile iron on brain cell proteostasis, which could be implicated in developing of neurological diseases.
Collapse
Affiliation(s)
- Aiyarin Kittilukkana
- Chiang Mai University, Faculty of Associated Medical Sciences, Department of Radiologic Technology, Laboratory of BioMolecular Imaging, Molecular and Cellular Biology, 50200, Chiang Mai, Thailand
| | - Jannarong Intakhad
- Chiang Mai University, Faculty of Associated Medical Sciences, Department of Radiologic Technology, Laboratory of BioMolecular Imaging, Molecular and Cellular Biology, 50200, Chiang Mai, Thailand
| | - Chalermchai Pilapong
- Chiang Mai University, Faculty of Associated Medical Sciences, Department of Radiologic Technology, Laboratory of BioMolecular Imaging, Molecular and Cellular Biology, 50200, Chiang Mai, Thailand.
| |
Collapse
|
2
|
Wang L, Fang X, Ling B, Wang F, Xia Y, Zhang W, Zhong T, Wang X. Research progress on ferroptosis in the pathogenesis and treatment of neurodegenerative diseases. Front Cell Neurosci 2024; 18:1359453. [PMID: 38515787 PMCID: PMC10955106 DOI: 10.3389/fncel.2024.1359453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/15/2024] [Indexed: 03/23/2024] Open
Abstract
Globally, millions of individuals are impacted by neurodegenerative disorders including Huntington's disease (HD), amyotrophic lateral sclerosis (ALS), Parkinson's disease (PD), and Alzheimer's disease (AD). Although a great deal of energy and financial resources have been invested in disease-related research, breakthroughs in therapeutic approaches remain elusive. The breakdown of cells usually happens together with the onset of neurodegenerative diseases. However, the mechanism that triggers neuronal loss is unknown. Lipid peroxidation, which is iron-dependent, causes a specific type of cell death called ferroptosis, and there is evidence its involvement in the pathogenic cascade of neurodegenerative diseases. However, the specific mechanisms are still not well known. The present article highlights the basic processes that underlie ferroptosis and the corresponding signaling networks. Furthermore, it provides an overview and discussion of current research on the role of ferroptosis across a variety of neurodegenerative conditions.
Collapse
Affiliation(s)
- Lijuan Wang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Xiansong Fang
- Department of Blood Transfusion, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Baodian Ling
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Fangsheng Wang
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Yu Xia
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Wenjuan Zhang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Tianyu Zhong
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Xiaoling Wang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| |
Collapse
|
3
|
Liu S, Butler CA, Ayton S, Reynolds EC, Dashper SG. Porphyromonas gingivalis and the pathogenesis of Alzheimer's disease. Crit Rev Microbiol 2024; 50:127-137. [PMID: 36597758 DOI: 10.1080/1040841x.2022.2163613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/05/2023]
Abstract
The cause of Alzheimer's disease (AD), and the pathophysiological mechanisms involved, remain major unanswered questions in medical science. Oral bacteria, especially those species associated with chronic periodontitis and particularly Porphyromonas gingivalis, are being linked causally to AD pathophysiology in a subpopulation of susceptible individuals. P. gingivalis produces large amounts of proteolytic enzymes, haem and iron capture proteins, adhesins and internalins that are secreted and attached to the cell surface and concentrated onto outer membrane vesicles (OMVs). These enzymes and adhesive proteins have been shown to cause host tissue damage and stimulate inflammatory responses. The ecological and pathophysiological roles of P. gingivalis OMVs, their ability to disperse widely throughout the host and deliver functional proteins lead to the proposal that they may be the link between a P. gingivalis focal infection in the subgingivae during periodontitis and neurodegeneration in AD. P. gingivalis OMVs can cross the blood brain barrier and may accelerate AD-specific neuropathology by increasing neuroinflammation, plaque/tangle formation and dysregulation of iron homeostasis, thereby inducing ferroptosis leading to neuronal death and neurodegeneration.
Collapse
Affiliation(s)
- Sixin Liu
- School of Dentistry, University of Michigan, Ann Arbor, United States of America
| | - Catherine A Butler
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Parkville, Australia
| | - Scott Ayton
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Australia
| | - Eric C Reynolds
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Parkville, Australia
| | - Stuart G Dashper
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Parkville, Australia
| |
Collapse
|
4
|
Suresh S, Singh S A, Rushendran R, Vellapandian C, Prajapati B. Alzheimer's disease: the role of extrinsic factors in its development, an investigation of the environmental enigma. Front Neurol 2023; 14:1303111. [PMID: 38125832 PMCID: PMC10730937 DOI: 10.3389/fneur.2023.1303111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
In the realm of Alzheimer's disease, the most prevalent form of dementia, the impact of environmental factors has ignited intense curiosity due to its substantial burden on global health. Recent investigations have unveiled these environmental factors as key contributors, shedding new light on their profound influence. Notably, emerging evidence highlights the detrimental role of various environmental contaminants in the incidence and progression of Alzheimer's disease. These contaminants encompass a broad spectrum, including air pollutants laden with ozone, neurotoxic metals like lead, aluminum, manganese, and cadmium, pesticides with their insidious effects, and the ubiquitous presence of plastics and microplastics. By meticulously delving into the intricate web connecting environmental pollutants and this devastating neurological disorder, this comprehensive chapter takes a deep dive into their involvement as significant risk factors for Alzheimer's disease. Furthermore, it explores the underlying molecular mechanisms through which these contaminants exert their influence, aiming to unravel the complex interactions that drive the pathogenesis of the disease. Additionally, this chapter proposes potential strategies to mitigate the detrimental effects of these environmental contaminants on brain health, with the ultimate goal of restoring and preserving typical cognitive function. Through this comprehensive exploration, we aim to enhance our understanding of the multifaceted relationship between neurotoxins and Alzheimer's disease, providing a solid foundation for developing innovative in-vivo models and advancing our knowledge of the intricate pathological processes underlying this debilitating condition.
Collapse
Affiliation(s)
- Swathi Suresh
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Ankul Singh S
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Rapuru Rushendran
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Chitra Vellapandian
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Bhupendra Prajapati
- Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Kherva, Gujarat, India
| |
Collapse
|
5
|
Torres J, Pereira JM, Marques-Oliveira R, Costa I, Gil-Martins E, Silva R, Remião F, Peixoto AF, Sousa Lobo JM, Silva AC. An In Vitro Evaluation of the Potential Neuroprotective Effects of Intranasal Lipid Nanoparticles Containing Astaxanthin Obtained from Different Sources: Comparative Studies. Pharmaceutics 2023; 15:pharmaceutics15041035. [PMID: 37111521 PMCID: PMC10142572 DOI: 10.3390/pharmaceutics15041035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
The intranasal route has been suggested as a promising alternative to improve the direct transport of molecules to the brain, avoiding the need to cross the blood-brain barrier (BBB). In this area, the use of lipid nanoparticles, namely solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC), has been highlighted as a promising strategy to improve the treatment of neurodegenerative diseases. In this work, formulations containing SLN and NLC that were loaded with astaxanthin that was obtained from different sources (astaxanthin extract (AE) from the algae Haematococcus pluvialis and pure astaxanthin (PA) from the fungi Blakeslea trispora) were prepared for nose-to-brain administration, and comparative in vitro experiments were performed to evaluate the biocompatibility of the formulations with nasal (RPMI 2650) and neuronal (SH-SY5Y) cells. Afterwards, the antioxidant activity of the formulations was evaluated for its potential neuroprotective effects, using different chemical aggressors. Finally, the cellular uptake of the astaxanthin was evaluated for the formulations that showed the greatest neuroprotection of the neuronal cells against chemical-induced damage. On the production day, all the formulations showed a particle size, a high encapsulation efficiency (EE), the presence of nanoparticles with a typical spherical shape, and a polydispersity index (PDI) and zeta potential (ZP) that are suitable for nose-to-brain administration. After three months of storage at room temperature, no significant changes were observed in the characterization parameters, predicting a good long-term stability. Furthermore, these formulations were shown to be safe with concentrations of up to 100 µg/mL in differentiated SH-SY5Y and RPMI 2650 cells. Regarding neuroprotection studies, the PA-loaded SLN and NLC formulations showed an ability to counteract some mechanisms of neurodegeneration, including oxidative stress. Moreover, when compared with the PA-loaded SLN, the PA-loaded NLC showed greater neuroprotective effects against the cytotoxicity induced by aggressors. In contrast, the AE-loaded SLN and NLC formulations showed no significant neuroprotective effects. Although further studies are needed to confirm these neuroprotective effects, the results of this study suggest that the intranasal administration of PA-loaded NLC may be a promising alternative to improve the treatment of neurodegenerative diseases.
Collapse
Affiliation(s)
- Joana Torres
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - José Miguel Pereira
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - Rita Marques-Oliveira
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - Inês Costa
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - Eva Gil-Martins
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - Renata Silva
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - Fernando Remião
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - Andreia Filipa Peixoto
- LAQV/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4099-002 Porto, Portugal
| | - José Manuel Sousa Lobo
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
| | - Ana Catarina Silva
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4099-002 Porto, Portugal
- FP-I3ID (Instituto de Investigação, Inovação e Desenvolvimento), FP-BHS (Biomedical and Health Sciences Research Unit), Faculty of Health Sciences, University Fernando Pessoa, 4099-002 Porto, Portugal
| |
Collapse
|
6
|
Karvandi MS, Sheikhzadeh Hesari F, Aref AR, Mahdavi M. The neuroprotective effects of targeting key factors of neuronal cell death in neurodegenerative diseases: The role of ER stress, oxidative stress, and neuroinflammation. Front Cell Neurosci 2023; 17:1105247. [PMID: 36950516 PMCID: PMC10025411 DOI: 10.3389/fncel.2023.1105247] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/07/2023] [Indexed: 03/08/2023] Open
Abstract
Neuronal loss is one of the striking causes of various central nervous system (CNS) disorders, including major neurodegenerative diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and Amyotrophic lateral sclerosis (ALS). Although these diseases have different features and clinical manifestations, they share some common mechanisms of disease pathology. Progressive regional loss of neurons in patients is responsible for motor, memory, and cognitive dysfunctions, leading to disabilities and death. Neuronal cell death in neurodegenerative diseases is linked to various pathways and conditions. Protein misfolding and aggregation, mitochondrial dysfunction, generation of reactive oxygen species (ROS), and activation of the innate immune response are the most critical hallmarks of most common neurodegenerative diseases. Thus, endoplasmic reticulum (ER) stress, oxidative stress, and neuroinflammation are the major pathological factors of neuronal cell death. Even though the exact mechanisms are not fully discovered, the notable role of mentioned factors in neuronal loss is well known. On this basis, researchers have been prompted to investigate the neuroprotective effects of targeting underlying pathways to determine a promising therapeutic approach to disease treatment. This review provides an overview of the role of ER stress, oxidative stress, and neuroinflammation in neuronal cell death, mainly discussing the neuroprotective effects of targeting pathways or molecules involved in these pathological factors.
Collapse
Affiliation(s)
- Mohammad Sobhan Karvandi
- Department of Cell and Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | | | - Amir Reza Aref
- Department of Medical Oncology, Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, United States
| | - Majid Mahdavi
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
- *Correspondence: Majid Mahdavi
| |
Collapse
|
7
|
Gao X, Wang Z, Xiong L, Wu F, Gan X, Liu J, Huang X, Liu J, Tang L, Li Y, Huang J, Huang Y, Li W, Zeng H, Ban Y, Chen T, He S, Lin A, Han F, Guo X, Yu Q, Shu W, Zhang B, Zou R, Zhou Y, Chen Y, Tian H, Wei W, Zhang Z, Wei C, Wei Y, Liu H, Yao H, Chen Q, Zou Z. The bs-YHEDA peptide protects the brains of senile mice and thus recovers intelligence by reducing iron and free radicals. Free Radic Biol Med 2022; 190:216-225. [PMID: 35970250 DOI: 10.1016/j.freeradbiomed.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 08/08/2022] [Accepted: 08/08/2022] [Indexed: 11/24/2022]
Abstract
Iron accumulates in the brain with age and catalyzes free radical damage to neurons, thus playing a pathogenic role in Alzheimer's disease (AD). To decrease the incidence of AD, we synthesized the iron-affinitive peptide 5YHEDA to scavenge the excess iron in the senile brain. However, the blood-brain barrier (BBB) blocks the entrance of macromolecules into the brain, thus decreasing the therapeutic effects. To facilitate the entrance of the 5YHEDA peptide, we linked the low-density lipoprotein receptor (LDLR)-binding segment of ApoB-100 to 5YHEDA (named "bs-YHEDA"). The results of intravenous injections of bs-5YHEDA into senescent mice demonstrated that bs-YHEDA entered the brain, increased ferriportin levels, reduced iron and free radical levels, decreased the consequences of neuronal necrosis and ameliorated cognitive disfunction without kidney or liver damage. bs-5YHEDA is a safe iron and free radical remover that potentially alleviates aging and Alzheimer's disease.
Collapse
Affiliation(s)
- Xiaodie Gao
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China; Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Zhigang Wang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China; Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Lijun Xiong
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Fengyao Wu
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China; Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Xinying Gan
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Jinlian Liu
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Xiansheng Huang
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China
| | - Juxia Liu
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China
| | - Liling Tang
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China
| | - Yanmei Li
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Jinli Huang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Yuping Huang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Wenyang Li
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Hongji Zeng
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Yunfei Ban
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Tingting Chen
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Suyuan He
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Anni Lin
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Fei Han
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Xuefeng Guo
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Qiming Yu
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Wei Shu
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Bo Zhang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Ruyi Zou
- Chemical Department of Shangrao Normal University, Shangrao, 334001, China.
| | - Yong Zhou
- Central Hospital Affiliated to Taizhou University, Taizhou, 318000, China
| | - Yongfeng Chen
- Central Hospital Affiliated to Taizhou University, Taizhou, 318000, China
| | - Haibo Tian
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Wenjia Wei
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China.
| | - Zhen Zhang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Chuandong Wei
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China
| | - Yuhua Wei
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China
| | - Huihua Liu
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China.
| | - Hua Yao
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China.
| | - Qiang Chen
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China.
| | - Zhenyou Zou
- Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, 542005, China; Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541199, China; Biochemistry Department of Purdue University, West Lafayette, IN47006, USA.
| |
Collapse
|
8
|
Barreiro S, Silva B, Long S, Pinto M, Remião F, Sousa E, Silva R. Fiscalin Derivatives as Potential Neuroprotective Agents. Pharmaceutics 2022; 14:pharmaceutics14071456. [PMID: 35890350 PMCID: PMC9320635 DOI: 10.3390/pharmaceutics14071456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/17/2022] [Accepted: 07/07/2022] [Indexed: 11/17/2022] Open
Abstract
Neurodegenerative diseases (ND) share common molecular/cellular mechanisms that contribute to their progression and pathogenesis. In this sense, we are here proposing new neuroprotection strategies by using marine-derived compounds as fiscalins. This work aims to evaluate the protective effects of fiscalin derivatives towards 1-methyl-4-phenylpyridinium (MPP+)- and iron (III)-induced cytotoxicity in differentiated SH-SY5Y cells, an in vitro disease model to study ND; and on P-glycoprotein (P-gp) transport activity, an efflux pump of drugs and neurotoxins. SH-SY5Y cells were simultaneously exposed to MPP+ or iron (III), and noncytotoxic concentrations of 18 fiscalin derivatives (0–25 μM), being the cytotoxic effect of both MPP+ and iron (III) evaluated 24 and 48 h after exposure. Fiscalins 1a and 1b showed a significant protective effect against MPP+-induced cytotoxicity and fiscalins 1b, 2b, 4 and 5 showed a protective effect against iron (III)-induced cytotoxicity. Fiscalins 4 and 5 caused a significant P-gp inhibition, while fiscalins 1c, 2a, 2b, 6 and 11 caused a modest increase in P-gp transport activity, thus suggesting a promising source of new P-gp inhibitors and activators, respectively. The obtained results highlight fiscalins with promising neuroprotective effects and with relevance for the synthesis of new derivatives for the treatment/prevention of ND.
Collapse
Affiliation(s)
- Sandra Barreiro
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (B.S.); (F.R.)
- UCIBIO—Applied Molecular Biosciences Unit, Requimte, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Correspondence: (S.B.); (R.S.)
| | - Bárbara Silva
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (B.S.); (F.R.)
- UCIBIO—Applied Molecular Biosciences Unit, Requimte, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Solida Long
- Department of Bioengineering, Royal University of Phnom Penh, Russian Confederation Blvd., Phnom Penh 12156, Cambodia;
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal; (M.P.); (E.S.)
| | - Madalena Pinto
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal; (M.P.); (E.S.)
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Fernando Remião
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (B.S.); (F.R.)
- UCIBIO—Applied Molecular Biosciences Unit, Requimte, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Emília Sousa
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal; (M.P.); (E.S.)
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Renata Silva
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (B.S.); (F.R.)
- UCIBIO—Applied Molecular Biosciences Unit, Requimte, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Correspondence: (S.B.); (R.S.)
| |
Collapse
|
9
|
Kerimoglu B, Lamb C, McPherson RD, Ergen E, Stone EM, Ooi A. Cyst(e)inase-Rapamycin combination induces ferroptosis in both in vitro and in vivo models of hereditary leiomyomatosis and renal cell cancer. Mol Cancer Ther 2022; 21:419-426. [PMID: 35086957 DOI: 10.1158/1535-7163.mct-21-0661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/05/2021] [Accepted: 01/14/2022] [Indexed: 11/16/2022]
Abstract
Renal cell carcinomas associated with hereditary leiomyomatosis and renal cell cancer (HLRCC) are notoriously aggressive and represent the leading cause of death among HLRCC patients. To date, a safe and effective standardized therapy for this tumor type is lacking. Here we show that the engineered synthetic therapeutic enzyme, Cyst(e)inase, when combined with rapamycin, can effectively induce ferroptosis in HLRCC cells in vivo. The drug combination promotes lipid peroxidation to a greater degree than cysteine deprivation or Cyst(e)inase treatment alone, while rapamycin treatment alone does not induce ferroptosis. Mechanistically, Cyst(e)inase induces ferroptosis by depleting the exogenous cysteine/cystine supply, while rapamycin reduces cellular ferritin level by promoting ferritins' destruction via ferritinophagy. Since both Cyst(e)inase and rapamycin are well-tolerated clinically, the combination represents an opportunity to exploit ferroptosis induction as a cancer management strategy. Accordingly, using a xenograft mouse model, we showed that the combination treatment resulted in tumor growth suppression without any notable side effects. In contrast, both Cyst(e)inase only and rapamycin only treatment groups failed to induce a significant change when compared to the vehicle control group. Our results demonstrated the effectiveness of Cyst(e)inase-rapamycin combination in inducing ferroptotic cell death in vivo, supporting the potential translation of the combination therapy into clinical HLRCC management.
Collapse
Affiliation(s)
| | - Candice Lamb
- Department of Molecular Biosciences, The University of Texas at Austin
| | | | - Ergul Ergen
- Pharmacology and Toxicology, University of Arizona
| | - Everett M Stone
- Biomedical Engineering, Cockrell School of Engineering, The University of Texas at Austin
| | - Aikseng Ooi
- Pharmacology and Toxicology, University of Arizona
| |
Collapse
|
10
|
Xu J, Wang Y, Zheng T, Huo Y, Du W. Biflavones inhibit the fibrillation and cytotoxicity of human islet amyloid polypeptide. J Mater Chem B 2022; 10:4650-4661. [DOI: 10.1039/d2tb00230b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biflavones are a kind of natural compounds with a variety of biological activities, which have the effects of reversing diabetes and neurodegenerative diseases. Human islet amyloid polypeptide (hIAPP) is closely...
Collapse
|
11
|
Jakaria M, Belaidi AA, Bush AI, Ayton S. Ferroptosis as a mechanism of neurodegeneration in Alzheimer's disease. J Neurochem 2021; 159:804-825. [PMID: 34553778 DOI: 10.1111/jnc.15519] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 01/19/2023]
Abstract
Alzheimer's disease (AD) is the most prevalent form of dementia, with complex pathophysiology that is not fully understood. While β-amyloid plaque and neurofibrillary tangles define the pathology of the disease, the mechanism of neurodegeneration is uncertain. Ferroptosis is an iron-mediated programmed cell death mechanism characterised by phospholipid peroxidation that has been observed in clinical AD samples. This review will outline the growing molecular and clinical evidence implicating ferroptosis in the pathogenesis of AD, with implications for disease-modifying therapies.
Collapse
Affiliation(s)
- Md Jakaria
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Abdel Ali Belaidi
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Ashley I Bush
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Scott Ayton
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| |
Collapse
|
12
|
Everett J, Brooks J, Collingwood JF, Telling ND. Nanoscale chemical speciation of β-amyloid/iron aggregates using soft X-ray spectromicroscopy. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01304h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanoscale resolution X-ray spectromicroscopy shows the co-incubation of β-amyloid (Aβ) and iron(iii) to result in aggregate structures displaying nanoscale heterogeneity in Aβ and iron chemistry, including the formation of potentially cytotoxic Fe0.
Collapse
Affiliation(s)
- James Everett
- School of Pharmacy and Bioengineering
- Guy Hilton Research Centre
- Thornburrow Drive
- Keele University
- Staffordshire
| | - Jake Brooks
- School of Engineering
- Library Road
- University of Warwick
- Coventry
- UK
| | | | - Neil D. Telling
- School of Pharmacy and Bioengineering
- Guy Hilton Research Centre
- Thornburrow Drive
- Keele University
- Staffordshire
| |
Collapse
|
13
|
Gleason A, Bush AI. Iron and Ferroptosis as Therapeutic Targets in Alzheimer's Disease. Neurotherapeutics 2021; 18:252-264. [PMID: 33111259 PMCID: PMC8116360 DOI: 10.1007/s13311-020-00954-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2020] [Indexed: 12/14/2022] Open
Abstract
Alzheimer's disease (AD), one of the most common neurodegenerative diseases worldwide, has a devastating personal, familial, and societal impact. In spite of profound investment and effort, numerous clinical trials targeting amyloid-β, which is thought to have a causative role in the disease, have not yielded any clinically meaningful success to date. Iron is an essential cofactor in many physiological processes in the brain. An extensive body of work links iron dyshomeostasis with multiple aspects of the pathophysiology of AD. In particular, regional iron load appears to be a risk factor for more rapid cognitive decline. Existing iron-chelating agents have been in use for decades for other indications, and there are preliminary data that some of these could be effective in AD. Many novel iron-chelating compounds are under development, some with in vivo data showing potential Alzheimer's disease-modifying properties. This heretofore underexplored therapeutic class has considerable promise and could yield much-needed agents that slow neurodegeneration in AD.
Collapse
Affiliation(s)
- Andrew Gleason
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, 30 Royal Parade, Parkville, Victoria, 3052, Australia
| | - Ashley I Bush
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, 30 Royal Parade, Parkville, Victoria, 3052, Australia.
| |
Collapse
|
14
|
Shuster SO, Fica-Contreras SM, Hedges JS, Henning NJ, Choi S. Comparison of the reaction of methylglyoxal (MGO) with murine and human amyloid beta (Aβ): Insights into a mechanism of Alzheimer's disease (AD). Biochem Biophys Res Commun 2020; 533:1298-1302. [PMID: 33046246 DOI: 10.1016/j.bbrc.2020.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 10/04/2020] [Indexed: 01/19/2023]
Abstract
Reacted with methylglyoxal (MGO), murine Aβ(1-40) (mAβ) produced significantly less superoxide anion (O2•-) compared to human Aβ(1-40) (hAβ). The reactions of MGO with mAβ(R13H), hAβ(H13F), Nα-acetyl-l-lysine, and Nα-acetyl-l-arginine implied that the lack of His13 in mAβ prohibits its Lys16 residue from reacting to produce cross-linked reaction products and O2•-. Our results suggest that murine brains are under less oxidative stress than human brains, which may be one of the reasons why rodents do not develop AD-like symptoms, and which provides further insight into a chemical mechanism for the development of AD in humans.
Collapse
Affiliation(s)
- Sydney O Shuster
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | | | - Jake S Hedges
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Nathaniel J Henning
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Sunhee Choi
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA.
| |
Collapse
|
15
|
Xu J, Zhao C, Huang X, Du W. Tetracycline derivatives resist the assembly behavior of human islet amyloid polypeptide. Biochimie 2020; 174:95-106. [DOI: 10.1016/j.biochi.2020.04.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 12/19/2022]
|
16
|
Boopathi S, Dinh Quoc Huy P, Gonzalez W, Theodorakis PE, Li MS. Zinc binding promotes greater hydrophobicity inAlzheimer's Aβ42peptide than copper binding: Molecular dynamics and solvation thermodynamics studies. Proteins 2020; 88:1285-1302. [DOI: 10.1002/prot.25901] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/04/2020] [Accepted: 05/13/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Subramanian Boopathi
- Centro de Bioinformática y Simulación Molecular (CBSM), Facultad de IngenieríaUniversidad de Talca Talca Chile
| | | | - Wendy Gonzalez
- Centro de Bioinformática y Simulación Molecular (CBSM), Facultad de IngenieríaUniversidad de Talca Talca Chile
- Millennium Nucleus of Ion Channels‐Associated Diseases (MiNICAD)Universidad de Talca Talca Chile
| | | | - Mai Suan Li
- Institute of PhysicsPolish Academy of Sciences Warsaw Poland
- Institute for Computational Science and Technology, Quang Trung Software City Tan Chanh Hiep Ward Ho Chi Minh City Vietnam
| |
Collapse
|
17
|
Chen M, Zheng J, Liu G, Zeng C, Xu E, Zhu W, Anderson GJ, Chen H. High Dietary Iron Disrupts Iron Homeostasis and Induces Amyloid-β and Phospho-τ Expression in the Hippocampus of Adult Wild-Type and APP/PS1 Transgenic Mice. J Nutr 2019; 149:2247-2254. [PMID: 31373375 PMCID: PMC6887700 DOI: 10.1093/jn/nxz168] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/21/2019] [Accepted: 06/25/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Brain iron deposition is a feature of Alzheimer disease and may contribute to its development. However, the relative contribution of dietary iron remains unclear. OBJECTIVES We investigated the impact of high dietary iron on brain pathological changes and cognitive function in adult wild-type (WT) mice and amyloid precursor protein/presenilin 1 (APP/PS1) double transgenic mice. METHODS Male WT mice and APP/PS1 mice aged 10 wk were fed either a control diet (66 mg Fe/kg) (WT-Ctrl and APP/PS1-Ctrl) or a high iron diet (14 g Fe/kg) (WT-High Fe and APP/PS1-High Fe) for 20 wk. Iron concentrations in brain regions were measured by atomic absorption spectrophotometry. Brain iron staining and amyloid-β (Aβ) immunostaining were performed. Protein expressions in the hippocampus were determined by immunoblotting. Superoxide dismutase (SOD) activity and malondialdehyde concentration were examined. Cognitive functions were tested with the Morris water maze system. RESULTS In the hippocampus, APP/PS1-High Fe mice had significantly higher iron concentration (2.5-fold) and ferritin (2.0-fold) than APP/PS1-Ctrl mice (P < 0.001), and WT-High Fe mice had significantly higher ferritin (2.0-fold) than WT-Ctrl mice (P < 0.001). Interestingly, APP/PS1 mice had significantly higher iron concentration (2-3-fold) and ferritin (2-2.5-fold) than WT mice fed either diet (P < 0.001). Histological analysis indicated that iron accumulated in the hippocampal dentate gyrus region in APP/PS1 mice, consistent with the pattern of Aβ deposition. For both mouse strains, iron treatment induced Aβ and phospho-τ expression (1.5-3-fold) in the hippocampus, but had little impact on oxidative stress and cognitive function. Furthermore, APP/PS1 mice had significantly lower SOD activity and higher malondialdehyde concentration than WT mice in the hippocampus (P < 0.0001), paralleled by apparent cognitive dysfunction. CONCLUSIONS Dietary iron overload induces iron disorder and Aβ and phospho-τ expression in the hippocampus of adult WT and APP/PS1 transgenic mice.
Collapse
Affiliation(s)
- Min Chen
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China,Address correspondence to HC (e-mail: )
| | - Jiashuo Zheng
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Guohao Liu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Chong Zeng
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - En Xu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Wenjie Zhu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | | | - Huijun Chen
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| |
Collapse
|
18
|
Xu J, Zhao C, Huang X, Du W. Regulation of Artemisinin and Its Derivatives on the Assembly Behavior and Cytotoxicity of Amyloid Polypeptides hIAPP and Aβ. ACS Chem Neurosci 2019; 10:4522-4534. [PMID: 31577904 DOI: 10.1021/acschemneuro.9b00385] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The misfolding and aggregation of human islet amyloid polypeptide (hIAPP) and amyloid-β (Aβ) protein are closely associated with type 2 diabetes mellitus (T2DM) and Alzheimer's disease, respectively. Inhibitors of amyloid peptides include short peptides, aromatic organic molecules, nanoparticles, and even metal compounds. Sesquiterpenoid artemisinins are widely used in anti-malaria treatments, and they may modulate glucose homeostasis against diabetes. However, the antidiabetic mechanism of these compounds remains unclear. In this work, four compounds, namely, artemisinin (1), dihydroartemisinin (2), artesunate (3), and artemether (4), were exploited to inhibit the assembly behavior of hIAPP and compared with that of Aβ. Although structurally distinct from other aromatic inhibitors of amyloid peptides, these sesquiterpenoids effectively altered the two peptides' fibril morphologies and disaggregated the mature fibrils mostly to the monomers. The interaction of artemisinins with the two peptides demonstrated a spontaneous, exothermic, and entropy-driven binding process predominantly through hydrophobic and hydrogen bonding interactions. Moreover, they reversed cytotoxicity and membrane leakage by reducing peptides' oligomerization. The results suggested that these compounds had better inhibition and disaggregation capability against hIAPP than against Aβ. Furthermore, the effects of these compounds' structural modification on the amyloid fibril formation of the two peptides were observed. The molecular screening offered a new perspective for artemisinins as promising inhibitors against amyloidosis related diseases.
Collapse
Affiliation(s)
- Jufei Xu
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Cong Zhao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xiangyi Huang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Weihong Du
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| |
Collapse
|
19
|
Lermyte F, Everett J, Lam YPY, Wootton CA, Brooks J, Barrow MP, Telling ND, Sadler PJ, O'Connor PB, Collingwood JF. Metal Ion Binding to the Amyloid β Monomer Studied by Native Top-Down FTICR Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:2123-2134. [PMID: 31350722 PMCID: PMC6805827 DOI: 10.1007/s13361-019-02283-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/01/2019] [Accepted: 07/01/2019] [Indexed: 05/22/2023]
Abstract
Native top-down mass spectrometry is a fast, robust biophysical technique that can provide molecular-scale information on the interaction between proteins or peptides and ligands, including metal cations. Here we have analyzed complexes of the full-length amyloid β (1-42) monomer with a range of (patho)physiologically relevant metal cations using native Fourier transform ion cyclotron resonance mass spectrometry and three different fragmentation methods-collision-induced dissociation, electron capture dissociation, and infrared multiphoton dissociation-all yielding consistent results. Amyloid β is of particular interest as its oligomerization and aggregation are major events in the etiology of Alzheimer's disease, and it is known that interactions between the peptide and bioavailable metal cations have the potential to significantly damage neurons. Those metals which exhibited the strongest binding to the peptide (Cu2+, Co2+, Ni2+) all shared a very similar binding region containing two of the histidine residues near the N-terminus (His6, His13). Notably, Fe3+ bound to the peptide only when stabilized toward hydrolysis, aggregation, and precipitation by a chelating ligand, binding in the region between Ser8 and Gly25. We also identified two additional binding regions near the flexible, hydrophobic C-terminus, where other metals (Mg2+, Ca2+, Mn2+, Na+, and K+) bound more weakly-one centered on Leu34, and one on Gly38. Unexpectedly, collisional activation of the complex formed between the peptide and [CoIII(NH3)6]3+ induced gas-phase reduction of the metal to CoII, allowing the peptide to fragment via radical-based dissociation pathways. This work demonstrates how native mass spectrometry can provide new insights into the interactions between amyloid β and metal cations.
Collapse
Affiliation(s)
- Frederik Lermyte
- School of Engineering, University of Warwick, Coventry, CV4 7AL, UK.
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK.
| | - James Everett
- School of Engineering, University of Warwick, Coventry, CV4 7AL, UK
- Institute for Science and Technology in Medicine, Keele University, Stoke-on-Trent, Staffordshire, ST4 7QB, UK
| | - Yuko P Y Lam
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | | | - Jake Brooks
- School of Engineering, University of Warwick, Coventry, CV4 7AL, UK
| | - Mark P Barrow
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Neil D Telling
- Institute for Science and Technology in Medicine, Keele University, Stoke-on-Trent, Staffordshire, ST4 7QB, UK
| | - Peter J Sadler
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Peter B O'Connor
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | | |
Collapse
|
20
|
Opare SKA, Rauk A. Pseudopeptide Designed to Inhibit Oligomerization and Redox Chemistry in Alzheimer’s Disease. J Phys Chem B 2019; 123:5206-5215. [DOI: 10.1021/acs.jpcb.9b01665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stanley K. A. Opare
- Department of Chemistry, The University of Calgary, Calgary, Alberta Canada, T2N 1N4
| | - Arvi Rauk
- Department of Chemistry, The University of Calgary, Calgary, Alberta Canada, T2N 1N4
| |
Collapse
|
21
|
Xu J, Zhang B, Gong G, Huang X, Du W. Inhibitory effects of oxidovanadium complexes on the aggregation of human islet amyloid polypeptide and its fragments. J Inorg Biochem 2019; 197:110721. [PMID: 31146152 DOI: 10.1016/j.jinorgbio.2019.110721] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/26/2019] [Accepted: 05/13/2019] [Indexed: 10/26/2022]
Abstract
Human islet amyloid polypeptide (hIAPP) is synthesized by pancreatic β-cells and co-secreted with insulin. Misfolding and amyloidosis of hIAPP induce β-cell dysfunction in type II diabetes mellitus. Numerous small organic molecules and metal complexes act as inhibitors against amyloid-related diseases, justifying the need to explore the inhibitory mechanism of these compounds. In this work, three oxidovanadium complexes, namely, (NH4)[VO(O2)2(bipy)]·4H2O (1) (bipy = 2,2' bipyridine), bis(ethyl-maltolato, O,O)oxido-vanadium(IV) (2), and (bipyH2)H2[O{VO(O2)(bipy)}2]·5H2O (3), were synthesized and used to inhibit the aggregation of hIAPP and its fragments, namely, hIAPP19-37 and hIAPP20-29. Results revealed that shortening the peptide sequence decreased the aggregation capability of hIAPP fragments, and the oxidovanadium complexes inhibited the fibrillization of hIAPP better than its fragments. Interestingly, the binding of oxidovanadium complexes to hIAPP and its fragments presented a distinct thermodynamic behavior. Oxidovanadium complexes featured the disaggregation capability against hIAPP, better than against its fragments. These complexes also decreased the cytotoxicity caused by hIAPP and its fragments by reducing the production of oligomers. 3 may be a good hIAPP inhibitor based on its inhibition, disaggregation capability, and regulatory effect on peptide-induced cytotoxicity. Oxidovanadium complexes exhibit potential as metallodrugs against amyloidosis-related diseases.
Collapse
Affiliation(s)
- Jufei Xu
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Baohong Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Gehui Gong
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xiangyi Huang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Weihong Du
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
| |
Collapse
|
22
|
Strodel B, Coskuner-Weber O. Transition Metal Ion Interactions with Disordered Amyloid-β Peptides in the Pathogenesis of Alzheimer's Disease: Insights from Computational Chemistry Studies. J Chem Inf Model 2019; 59:1782-1805. [PMID: 30933519 DOI: 10.1021/acs.jcim.8b00983] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Monomers and oligomers of the amyloid-β peptide aggregate to form the fibrils found in the brains of Alzheimer's disease patients. These monomers and oligomers are largely disordered and can interact with transition metal ions, affecting the mechanism and kinetics of amyloid-β aggregation. Due to the disordered nature of amyloid-β, its rapid aggregation, as well as solvent and paramagnetic effects, experimental studies face challenges in the characterization of transition metal ions bound to amyloid-β monomers and oligomers. The details of the coordination chemistry between transition metals and amyloid-β obtained from experiments remain debated. Furthermore, the impact of transition metal ion binding on the monomeric or oligomeric amyloid-β structures and dynamics are still poorly understood. Computational chemistry studies can serve as an important complement to experimental studies and can provide additional knowledge on the binding between amyloid-β and transition metal ions. Many research groups conducted first-principles calculations, ab initio molecular dynamics simulations, quantum mechanics/classical mechanics simulations, and classical molecular dynamics simulations for studying the interplay between transition metal ions and amyloid-β monomers and oligomers. This review summarizes the current understanding of transition metal interactions with amyloid-β obtained from computational chemistry studies. We also emphasize the current view of the coordination chemistry between transition metal ions and amyloid-β. This information represents an important foundation for future metal ion chelator and drug design studies aiming to combat Alzheimer's disease.
Collapse
Affiliation(s)
- Birgit Strodel
- Institute of Complex Systems: Structural Biochemistry (ICS-6) , Forschungszentrum Jülich GmbH , Jülich 52425 , Germany.,Institute of Theoretical and Computational Chemistry , Heinrich Heine University Düsseldorf , Universitätstrasse 1 , Düsseldorf 40225 , Germany
| | - Orkid Coskuner-Weber
- Molecular Biotechnology , Turkish-German University , Sahinkaya Caddesi, No. 86, Beykoz , Istanbul 34820 , Turkey
| |
Collapse
|
23
|
Zhong Z, Sun Y, Wang B, Sun Q, Yang G, Bian L. Involvement of mitogen-activated protein kinase pathways in ferrous iron-induced aquaporin-4 expression in cultured astrocytes. Neurotoxicology 2019; 73:142-149. [PMID: 30914277 DOI: 10.1016/j.neuro.2019.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/27/2019] [Accepted: 03/21/2019] [Indexed: 11/17/2022]
Abstract
Iron is an essential element for multiple metabolic reactions, but excessive iron accumulation in the brain can lead to astrocyte swelling and death and cause cerebral edema. Aquaporin-4 (AQP4) is the important water channel expressed in the astrocytes, and maintains the water homeostasis of the brain. Previous study has shown that iron deposition could increase AQP4 expression, however, the mechanism of AQP4 expression upregulation after iron overload is still unclear. In this study, we investigated the effect of ferrous iron overload on AQP4 expression in cultured mouse astrocytes. Primary cultures of astrocytes were exposed to ferrous iron, and the expression of AQP4 as well as the swelling of astrocyte were determined. AQP4 expression was inhibited by small interfering RNA (siRNA). The role of oxidative stress and mitogen-activated protein kinases (MAPKs) signaling pathway in ferrous iron-induced AQP4 expression upregulation were further studied. Ferrous iron exposure induced astrocyte death as well as cell swelling, and increased AQP4 expression. AQP4 gene silencing after siRNA transfection attenuated ferrous iron-induced astrocyte death. After treatment with antioxidants, the increased AQP4 expression was diminished. MAPKs were activated after ferrous iron treatment, and inhibitors of ERK and p38-MAPK relieved AQP4 expression upregulation as well as astrocyte death. These results suggest that ferrous iron has distinctive toxic effects on cultured astrocytes and induces AQP4 expression upregulation. MAPKs activation may play important roles in ferrous iron-induced astrocyte death through upregulation of AQP4 expression.
Collapse
Affiliation(s)
- Zhihong Zhong
- Department of Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yuhao Sun
- Department of Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Baofeng Wang
- Department of Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Qingfang Sun
- Department of Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Guoyuan Yang
- Neuroscience and Neuroengineering Research Center, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Liuguan Bian
- Department of Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| |
Collapse
|
24
|
Huat TJ, Camats-Perna J, Newcombe EA, Valmas N, Kitazawa M, Medeiros R. Metal Toxicity Links to Alzheimer's Disease and Neuroinflammation. J Mol Biol 2019; 431:1843-1868. [PMID: 30664867 DOI: 10.1016/j.jmb.2019.01.018] [Citation(s) in RCA: 239] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 12/11/2022]
Abstract
As the median age of the population increases, the number of individuals with Alzheimer's disease (AD) and the associated socio-economic burden are predicted to worsen. While aging and inherent genetic predisposition play major roles in the onset of AD, lifestyle, physical fitness, medical condition, and social environment have emerged as relevant disease modifiers. These environmental risk factors can play a key role in accelerating or decelerating disease onset and progression. Among known environmental risk factors, chronic exposure to various metals has become more common among the public as the aggressive pace of anthropogenic activities releases excess amount of metals into the environment. As a result, we are exposed not only to essential metals, such as iron, copper, zinc and manganese, but also to toxic metals including lead, aluminum, and cadmium, which perturb metal homeostasis at the cellular and organismal levels. Herein, we review how these metals affect brain physiology and immunity, as well as their roles in the accumulation of toxic AD proteinaceous species (i.e., β-amyloid and tau). We also discuss studies that validate the disruption of immune-related pathways as an important mechanism of toxicity by which metals can contribute to AD. Our goal is to increase the awareness of metals as players in the onset and progression of AD.
Collapse
Affiliation(s)
- Tee Jong Huat
- Neurula Laboratory, Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, Australia; Centre for Stem Cell Ageing and Regenerative Engineering, The University of Queensland, Brisbane, Australia.
| | - Judith Camats-Perna
- Neurula Laboratory, Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, Australia
| | - Estella A Newcombe
- Neurula Laboratory, Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, Australia
| | - Nicholas Valmas
- Queensland Brain Institute, The University of Queensland, Brisbane, Australia
| | - Masashi Kitazawa
- Center for Occupational and Environmental Health, Department of Medicine, University of California, Irvine, CA, USA
| | - Rodrigo Medeiros
- Neurula Laboratory, Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, Australia.
| |
Collapse
|
25
|
Kurtishi A, Rosen B, Patil KS, Alves GW, Møller SG. Cellular Proteostasis in Neurodegeneration. Mol Neurobiol 2018; 56:3676-3689. [PMID: 30182337 DOI: 10.1007/s12035-018-1334-z] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 08/27/2018] [Indexed: 02/06/2023]
Abstract
The term proteostasis reflects the fine-tuned balance of cellular protein levels, mediated through a vast network of biochemical pathways. This requires the regulated control of protein folding, post-translational modification, and protein degradation. Due to the complex interactions and intersection of proteostasis pathways, exposure to stress conditions may lead to a disruption of the entire network. Incorrect protein folding and/or modifications during protein synthesis results in inactive or toxic proteins, which may overload degradation mechanisms. Further, a disruption of autophagy and the endoplasmic reticulum degradation pathway may result in additional cellular stress which could ultimately lead to cell death. Neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, Huntington's disease, and Amyotrophic Lateral Sclerosis all share common risk factors such as oxidative stress, aging, environmental stress, and protein dysfunction; all of which alter cellular proteostasis. The differing pathologies observed in neurodegenerative diseases are determined by factors such as location-specific neuronal death, source of protein dysfunction, and the cell's ability to counter proteotoxicity. In this review, we discuss how the disruption in cellular proteostasis contributes to the onset and progression of neurodegenerative diseases.
Collapse
Affiliation(s)
- Alberim Kurtishi
- Department of Biological Sciences, St. John's University, 8000 Utopia Parkway, New York, 11439, USA
| | - Benjamin Rosen
- Department of Biological Sciences, St. John's University, 8000 Utopia Parkway, New York, 11439, USA
| | - Ketan S Patil
- Department of Biological Sciences, St. John's University, 8000 Utopia Parkway, New York, 11439, USA
| | - Guido W Alves
- Norwegian Center for Movement Disorders, Stavanger University Hospital, Stavanger, Norway
| | - Simon G Møller
- Department of Biological Sciences, St. John's University, 8000 Utopia Parkway, New York, 11439, USA. .,Norwegian Center for Movement Disorders, Stavanger University Hospital, Stavanger, Norway.
| |
Collapse
|
26
|
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]
|
27
|
Galante D, Cavallo E, Perico A, D'Arrigo C. Effect of ferric citrate on amyloid-beta peptides behavior. Biopolymers 2018; 109:e23224. [PMID: 29897618 DOI: 10.1002/bip.23224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 04/06/2018] [Accepted: 04/19/2018] [Indexed: 12/26/2022]
Abstract
Amyloid beta (Aβ) aggregation and oxidative stress are two of the central events in Alzheimer's Disease (AD). Both these phenomena can be caused by the interaction of Aβ with metal ions. In the last years the interaction between ZnII , CuII , and Aβ was much studied, but between iron and Aβ it is still little known. In this work we determine how three Aβ peptides, present in AD, interact with FeIII -citrate. The three Aβ peptides are: full length Aβ1-42, an isoform truncated at Glutamic acid in position three, Aβ3-42, and its pyroglutamated form AβpE3-42. Conformation and morphology of the three peptides, aggregated with and without FeIII -citrate were studied. Besides, we have determined the strength of the interactions Aβ/FeIII -citrate studying the effect of ethylenediaminetetraacetic acid as chelator. Results reported here demonstrate that FeIII -citrate promotes the aggregation in all the three peptides. Moreover, Aspartic acid 1, Glutamic acid 3, and Tyrosine 10 have an important role in the coordination with iron, generating a more stable complex for Aβ1-42 compared to that for the truncated peptides.
Collapse
Affiliation(s)
- D Galante
- Institute for Macromolecular Studies, National Research Council, Genova, 16149, Italy
| | - E Cavallo
- Institute for Macromolecular Studies, National Research Council, Genova, 16149, Italy.,Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, Genova, 16146, Italy
| | - A Perico
- Institute for Macromolecular Studies, National Research Council, Genova, 16149, Italy
| | - C D'Arrigo
- Institute for Macromolecular Studies, National Research Council, Genova, 16149, Italy
| |
Collapse
|
28
|
Bagheri S, Squitti R, Haertlé T, Siotto M, Saboury AA. Role of Copper in the Onset of Alzheimer's Disease Compared to Other Metals. Front Aging Neurosci 2018; 9:446. [PMID: 29472855 PMCID: PMC5810277 DOI: 10.3389/fnagi.2017.00446] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 12/28/2017] [Indexed: 12/14/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder that is characterized by amyloid plaques in patients' brain tissue. The plaques are mainly made of β-amyloid peptides and trace elements including Zn2+, Cu2+, and Fe2+. Some studies have shown that AD can be considered a type of metal dyshomeostasis. Among metal ions involved in plaques, numerous studies have focused on copper ions, which seem to be one of the main cationic elements in plaque formation. The involvement of copper in AD is controversial, as some studies show a copper deficiency in AD, and consequently a need to enhance copper levels, while other data point to copper overload and therefore a need to reduce copper levels. In this paper, the role of copper ions in AD and some contradictory reports are reviewed and discussed.
Collapse
Affiliation(s)
- Soghra Bagheri
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Rosanna Squitti
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio-Fatebenefratelli, Brescia, Italy
| | - Thomas Haertlé
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
- UR 1268 Biopolymères Interactions Assemblages, Institut National de la Recherche Agronomique, Equipe Fonctions et Interactions des Protéines, Nantes, France
- Department of Animal Nutrition and Feed Management, Poznan University of Life Sciences, Poznań, Poland
| | | | - Ali A. Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| |
Collapse
|
29
|
Qin Y, Ge Y, Zhang S, Sun H, Jing Y, Li Y, Liu W. A series of Ln4III clusters: Dy4 single molecule magnet and Tb4 multi-responsive luminescent sensor for Fe3+, CrO42−/Cr2O72− and 4-nitroaniline. RSC Adv 2018; 8:12641-12652. [PMID: 35541266 PMCID: PMC9079637 DOI: 10.1039/c8ra01485j] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 03/26/2018] [Indexed: 12/31/2022] Open
Abstract
Five tetranuclear lanthanide clusters were synthesized. Dy4 complex exhibits single molecule magnet (SMM) behavior and Tb4 compound shows sensing properties towards Fe3+, CrO42−, Cr2O72− and 4-nitroaniline (4-NA).
Collapse
Affiliation(s)
- Yaru Qin
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yu Ge
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Shasha Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Hao Sun
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yu Jing
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yahong Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Wei Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| |
Collapse
|
30
|
Affiliation(s)
- Stanley K. A. Opare
- Department of Chemistry, University of Calgary, 2500 University Drive Northwest, Calgary, Alberta, Canada T2N 1N4
| | - Arvi Rauk
- Department of Chemistry, University of Calgary, 2500 University Drive Northwest, Calgary, Alberta, Canada T2N 1N4
| |
Collapse
|
31
|
|
32
|
Fica-Contreras SM, Shuster SO, Durfee ND, Bowe GJK, Henning NJ, Hill SA, Vrla GD, Stillman DR, Suralik KM, Sandwick RK, Choi S. Glycation of Lys-16 and Arg-5 in amyloid-β and the presence of Cu 2+ play a major role in the oxidative stress mechanism of Alzheimer's disease. J Biol Inorg Chem 2017; 22:1211-1222. [PMID: 29038915 DOI: 10.1007/s00775-017-1497-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 10/09/2017] [Indexed: 01/21/2023]
Abstract
Extensive research has linked the amyloid-beta (Aβ) peptide to neurological dysfunction in Alzheimer's disease (AD). Insoluble Aβ plaques in the AD patient brain contain high concentrations of advanced glycation end-products (AGEs) as well as transition metal ions. This research elucidated the roles of Aβ, sugars, and Cu2+ in the oxidative stress mechanism of AD at the molecular level. Mass spectral (MS) analysis of the reactions of Aβ with two representative sugars, ribose-5-phosphate (R5P) and methylglyoxal (MG), revealed Lys-16 and Arg-5 as the primary glycation sites. Quantitative analysis of superoxide [Formula: see text] production by a cyt c assay showed that Lys-16 generated four times as much [Formula: see text] as Arg-5. Lys-16 and Arg-5 in Aβ1-40 are both adjacent to histidine residues, which are suggested to catalyze glycation. Additionally, Lys-16 is close to the central hydrophobic core (Leu-17-Ala-21) and to His-13, both of which are known to lower the pKa of the residue, leading to increased deprotonation of the amine and an enhanced glycation reactivity compared to Arg-5. Gel electrophoresis results indicated that all three components of AD plaques-Aβ1-40, sugars, and Cu2+-are necessary for DNA damage. It is concluded that the glycation of Aβ1-40 with sugars generates significant amounts of [Formula: see text], owing to the rapid glycation of Lys-16 and Arg-5. In the presence of Cu2+, [Formula: see text] converts to hydroxyl radical (HO·), the source of oxidative stress in AD.
Collapse
Affiliation(s)
| | - Sydney O Shuster
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Nathaniel D Durfee
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Gregory J K Bowe
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Nathaniel J Henning
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Staci A Hill
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Geoffrey D Vrla
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - David R Stillman
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Kelly M Suralik
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Roger K Sandwick
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA
| | - Sunhee Choi
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT, 05753, USA.
| |
Collapse
|
33
|
Li DD, Zhang W, Wang ZY, Zhao P. Serum Copper, Zinc, and Iron Levels in Patients with Alzheimer's Disease: A Meta-Analysis of Case-Control Studies. Front Aging Neurosci 2017; 9:300. [PMID: 28966592 PMCID: PMC5605551 DOI: 10.3389/fnagi.2017.00300] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 08/31/2017] [Indexed: 11/13/2022] Open
Abstract
Background: Many publications have investigated the association between metal ions and the risk of Alzheimer's disease (AD), but the results were ambiguous. Aims: The objective of this study was to assess the association between the serum levels of metals (copper/zinc/iron) and the risk of AD via meta-analysis of case-control studies. Methods: We screened literatures published after 1978 in the Pubmed, Embase, Cochrane library, Web of Science and ClinicalTrials.gov. Electronic databases. By using Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines, we performed a systematic review of the 407 publications, there are 44 of these publications met all inclusion criteria. The Review Manager 5.3 software was used to calculate available data from each study. Results: Consistent with the conclusions of other meta-analysis, our results demonstrated serum copper levels were significantly higher [MD = 9.27, 95% CI (5.02–13.52); p < 0.0001], and the serum zinc levels were significantly lower in AD patients than in healthy controls [MD = −6.12, 95% CI (−9.55, −2.69); p = 0.0005]. Serum iron levels were significantly lower in AD patients than in healthy controls after excluded two studies [MD = −13.01, 95% CI (−20.75, −5.27); p = 0.001]. Conclusion: The results of our meta-analysis provided rigorous statistical support for the association of the serum levels of metals and the risk of AD, suggesting a positive relationship between the serum copper levels and AD risk, and a negative relationship between the serum zinc/iron levels and AD risk.
Collapse
Affiliation(s)
- Dan-Dan Li
- College of Life and Health Sciences, Northeastern UniversityShenyang, China
| | - Wei Zhang
- Department of Hepatobiliary Surgery, General Hospital of Shenyang Military Area CommandShenyang, China
| | - Zhan-You Wang
- College of Life and Health Sciences, Northeastern UniversityShenyang, China
| | - Pu Zhao
- College of Life and Health Sciences, Northeastern UniversityShenyang, China
| |
Collapse
|
34
|
Du W, Gong G, Wang W, Xu J. Regulation of the aggregation behavior of human islet amyloid polypeptide fragment by titanocene complexes. J Biol Inorg Chem 2017; 22:1065-1074. [DOI: 10.1007/s00775-017-1484-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 07/27/2017] [Indexed: 01/09/2023]
|
35
|
Wang W, Zhao C, Zhu D, Gong G, Du W. Inhibition of amyloid peptide fibril formation by gold-sulfur complexes. J Inorg Biochem 2017; 171:1-9. [PMID: 28282581 DOI: 10.1016/j.jinorgbio.2017.02.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 02/18/2017] [Accepted: 02/20/2017] [Indexed: 12/16/2022]
Abstract
Amyloid-related diseases are characterized by protein conformational change and amyloid fibril deposition. Metal complexes are potential inhibitors of amyloidosis. Nitrogen-coordinated gold complexes have been used to disaggregate prion neuropeptide (PrP106-126) and human islet amyloid polypeptide (hIAPP). However, the roles of metal complexes in peptide fibril formation and related bioactivity require further exploration. In this work, we investigated the interactions of amyloid peptides PrP106-126 and hIAPP with two tetracoordinated gold-sulfur complexes, namely, dichloro diethyl dithiocarbamate gold complex and dichloro pyrrolidine dithiocarbamate gold complex. We also determined the effects of these complexes on peptide-induced cytotoxicity. Thioflavin T assay, morphological characterization, and particle size analysis indicated that the two gold-sulfur complexes effectively inhibited the fibrillation of the amyloid peptides, which led to the formation of nanoscale particles. The complexes reduced the cytotoxicity induced by the amyloid peptides. Intrinsic fluorescence, nuclear magnetic resonance, and mass spectrometry revealed that the complexes interacted with PrP106-126 and hIAPP via metal coordination and hydrophobic interaction, which improved the inhibition and binding of the two gold-sulfur compounds. Our study provided new insights into the use of tetracoordinated gold-sulfur complexes as drug candidates against protein conformational disorders.
Collapse
Affiliation(s)
- Wenji Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
| | - Cong Zhao
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
| | - Dengsen Zhu
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
| | - Gehui Gong
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
| | - Weihong Du
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China.
| |
Collapse
|
36
|
Abstract
Reactive species play an important role in physiological functions. Overproduction of reactive species, notably reactive oxygen (ROS) and nitrogen (RNS) species along with the failure of balance by the body's antioxidant enzyme systems results in destruction of cellular structures, lipids, proteins, and genetic materials such as DNA and RNA. Moreover, the effects of reactive species on mitochondria and their metabolic processes eventually cause a rise in ROS/RNS levels, leading to oxidation of mitochondrial proteins, lipids, and DNA. Oxidative stress has been considered to be linked to the etiology of many diseases, including neurodegenerative diseases (NDDs) such as Alzheimer diseases, Amyotrophic lateral sclerosis, Friedreich's ataxia, Huntington's disease, Multiple sclerosis, and Parkinson's diseases. In addition, oxidative stress causing protein misfold may turn to other NDDs include Creutzfeldt-Jakob disease, Bovine Spongiform Encephalopathy, Kuru, Gerstmann-Straussler-Scheinker syndrome, and Fatal Familial Insomnia. An overview of the oxidative stress and mitochondrial dysfunction-linked NDDs has been summarized in this review.
Collapse
Affiliation(s)
- Md Torequl Islam
- a Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology , Federal University of Piauí (UFPI) , Teresina , Brazil.,b Department of Pharmacy, Faculty of Science and Engineering , Southern University Bangladesh (SUB) , Chittagong , Bangladesh
| |
Collapse
|
37
|
Xu H, Perreau VM, Dent KA, Bush AI, Finkelstein DI, Adlard PA. Iron Regulates Apolipoprotein E Expression and Secretion in Neurons and Astrocytes. J Alzheimers Dis 2016; 51:471-87. [DOI: 10.3233/jad-150797] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- He Xu
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
- The Department of Tissue Engineering, School of Fundamental Science, China Medical University, Shenyang North New Area, Shenyang, Liaoning Province, P.R. China
| | - Victoria M. Perreau
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
| | - Krista A. Dent
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
| | - Ashley I. Bush
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
| | - David I. Finkelstein
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
| | - Paul A. Adlard
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
| |
Collapse
|
38
|
Zhang B, Zhu D, Wang W, Gong G, Du W. Influence of oxodiperoxovanadate complexes on prion neuropeptide fibril formation. RSC Adv 2016. [DOI: 10.1039/c5ra25849a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Different oxodiperoxovanadate complexes inhibit the fibril formation of prion neuropeptides by different action modes.
Collapse
Affiliation(s)
- Baohong Zhang
- Department of Chemistry
- Renmin University of China
- Beijing
- China
- College of Materials Science and Engineering
| | - Dengsen Zhu
- Department of Chemistry
- Renmin University of China
- Beijing
- China
| | - Wenji Wang
- Department of Chemistry
- Renmin University of China
- Beijing
- China
| | - Gehui Gong
- Department of Chemistry
- Renmin University of China
- Beijing
- China
| | - Weihong Du
- Department of Chemistry
- Renmin University of China
- Beijing
- China
| |
Collapse
|
39
|
Effects of gold complexes on the assembly behavior of human islet amyloid polypeptide. J Inorg Biochem 2015; 152:114-22. [DOI: 10.1016/j.jinorgbio.2015.08.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/09/2015] [Accepted: 08/20/2015] [Indexed: 11/24/2022]
|
40
|
Part K, Künnis-Beres K, Poska H, Land T, Shimmo R, Zetterström Fernaeus S. Amyloid β25-35 induced ROS-burst through NADPH oxidase is sensitive to iron chelation in microglial Bv2 cells. Brain Res 2015; 1629:282-90. [PMID: 26505916 DOI: 10.1016/j.brainres.2015.09.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 11/27/2022]
Abstract
Iron chelation therapy and inhibition of glial nicotinamide adenine dinucleotide phosphate (NADPH) oxidase can both represent possible routes for Alzheimer's disease modifying therapies. The metal hypothesis is largely focused on direct binding of metals to the N-terminal hydrophilic 1-16 domain peptides of Amyloid beta (Aβ) and how they jointly give rise to reactive oxygen species (ROS) production. The cytotoxic effects of Aβ through ROS and metals are mainly studied in neuronal cells using full-length Aβ1-40/42 peptides. Here we study cellularly-derived ROS during 2-60min in response to non-metal associated mid domain Aβ25-35 in microglial Bv2 cells by fluorescence based spectroscopy. We analyze if Aβ25-35 induce ROS production through NADPH oxidase and if the production is sensitive to iron chelation. NADPH oxidase inhibitor diphenyliodonium (DPI) is used to confirm the production of ROS through NADPH oxidase. We modulate cellular iron homeostasis by applying cell permeable iron chelators desferrioxamine (DFO) and deferiprone (DFP). NADPH oxidase subunit gp91-phox level was analyzed by Western blotting. Our results show that Aβ25-35 induces strong ROS production through NADPH oxidase in Bv2 microglial cells. Intracellular iron depletion resulted in restrained Aβ25-35 induced ROS.
Collapse
Affiliation(s)
- Kristin Part
- School of Natural Sciences and Health, Tallinn University, Narva Mnt 29, 10120 Tallinn, Estonia.
| | - Kai Künnis-Beres
- School of Natural Sciences and Health, Tallinn University, Narva Mnt 29, 10120 Tallinn, Estonia; Laboratory of Molecular Genetics National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Helen Poska
- School of Natural Sciences and Health, Tallinn University, Narva Mnt 29, 10120 Tallinn, Estonia.
| | - Tiit Land
- School of Natural Sciences and Health, Tallinn University, Narva Mnt 29, 10120 Tallinn, Estonia.
| | - Ruth Shimmo
- School of Natural Sciences and Health, Tallinn University, Narva Mnt 29, 10120 Tallinn, Estonia.
| | | |
Collapse
|
41
|
Bhat AH, Dar KB, Anees S, Zargar MA, Masood A, Sofi MA, Ganie SA. Oxidative stress, mitochondrial dysfunction and neurodegenerative diseases; a mechanistic insight. Biomed Pharmacother 2015; 74:101-10. [PMID: 26349970 DOI: 10.1016/j.biopha.2015.07.025] [Citation(s) in RCA: 605] [Impact Index Per Article: 67.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 07/26/2015] [Indexed: 12/23/2022] Open
Abstract
Mitochondria is one of the main source of oxidative stress (ROS), as it utilizes the oxygen for the energy production. ROS and RNS are normally generated by tightly regulated enzymes. Excessive stimulation of NAD(P)H and electron transport chain leads to the overproduction of ROS, results in oxidative stress, which is a good mediator to injure the cell structures, lipids, proteins, and DNA. Various oxidative events implicated in many diseases due to oxidative stress include alteration in mitochondrial proteins, mitochondrial lipids and mitochondrial DNA, Which in turn leads to the damage to nerve cell as they are metabolically very active. ROS/RNS at moderate concentrations also play roles in normal physiology of many processes like signaling pathways, induction of mitogenic response and in defense against infectious pathogens. Oxidative stress has been considered to be the main cause in the etiology of many diseases, which includes Parkinson's and Alzheimer diseases. Several PD associated genes have been found to be involved in mitochondrial function, dynamics and morphology as well. This review includes source of free radical generation, chemistry and biochemistry of ROS/RNS and mitochondrial dysfunction and the mechanism involved in neurodegenerative diseases.
Collapse
Affiliation(s)
- Aashiq Hussain Bhat
- Department of Clinical Biochemistry, University of Kashmir, Srinagar 190006, India
| | - Khalid Bashir Dar
- Department of Clinical Biochemistry, University of Kashmir, Srinagar 190006, India
| | - Suhail Anees
- Department of Clinical Biochemistry, University of Kashmir, Srinagar 190006, India
| | | | - Akbar Masood
- Department of Biochemistry, University of Kashmir, Srinagar 190006, India
| | - Manzoor Ahmad Sofi
- Department of Clinical Biochemistry, University of Kashmir, Srinagar 190006, India
| | - Showkat Ahmad Ganie
- Department of Clinical Biochemistry, University of Kashmir, Srinagar 190006, India.
| |
Collapse
|
42
|
Meadowcroft MD, Connor JR, Yang QX. Cortical iron regulation and inflammatory response in Alzheimer's disease and APPSWE/PS1ΔE9 mice: a histological perspective. Front Neurosci 2015; 9:255. [PMID: 26257600 PMCID: PMC4511841 DOI: 10.3389/fnins.2015.00255] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 07/10/2015] [Indexed: 12/25/2022] Open
Abstract
Disruption of iron homeostasis and increased glial response are known to occur in brains afflicted by Alzheimer's disease (AD). While the APP/PS1 transgenic mouse model recapitulates the hallmark amyloid-beta plaque pathology of AD, it does so in a different neuronal mileu than humans. Understanding the iron characteristics and glial response of the APP/PS1 model is important when testing new treatment procedures and translating these results. Brain tissue from AD patients, APP/PS1 mice, and controls were stained for iron, H- and L-ferritin, microglia, astrocytes, Aβ40∕42, and degenerating neurons. The histological data demonstrate differences in ferritin, iron distribution, gliosis, and Aβ plaque composition between APP/PS1 and AD tissue. Specifically, an association between focal iron deposition and Aβ plaques is found ubiquitously throughout the AD tissue and is not observed in the APP/PS1 mouse model. Ferritin, microglia, and astrocyte staining show differential response patterns to amyloid plaques in AD and the APP/PS1 tissue. Aβ 40 and 42 antibody and thioflavin staining demonstrate morphological differences in plaque composition. The histological data support the hypothesis that iron distribution, iron management, and glial response histologically differ between the APP/PS1 and AD brain. Acknowledging the caveat that there are distinct plaque, iron, and glial contrasts between the AD brain and the APP/PS1 mouse is crucial when utilizing this model.
Collapse
Affiliation(s)
- Mark D Meadowcroft
- Department of Neurosurgery, Milton S. Hershey Medical Center, The Pennsylvania State University - College of Medicine Hershey, PA, USA ; Department of Radiology (The Center for NMR Research), Milton S. Hershey Medical Center, The Pennsylvania State University - College of Medicine Hershey, PA, USA
| | - James R Connor
- Department of Neurosurgery, Milton S. Hershey Medical Center, The Pennsylvania State University - College of Medicine Hershey, PA, USA
| | - Qing X Yang
- Department of Neurosurgery, Milton S. Hershey Medical Center, The Pennsylvania State University - College of Medicine Hershey, PA, USA ; Department of Radiology (The Center for NMR Research), Milton S. Hershey Medical Center, The Pennsylvania State University - College of Medicine Hershey, PA, USA
| |
Collapse
|
43
|
Abstract
SIGNIFICANCE A constant accumulation of oxidized proteins takes place during aging. Oxidation of proteins leads to a partial unfolding and, therefore, to aggregation. Protein aggregates impair the activity of cellular proteolytic systems (proteasomes, lysosomes), resulting in further accumulation of oxidized proteins. In addition, the accumulation of highly crosslinked protein aggregates leads to further oxidant formation, damage to macromolecules, and, finally, to apoptotic cell death. Furthermore, protein oxidation seems to play a role in the development of various age-related diseases, for example, neurodegenerative diseases. RECENT ADVANCES The highly oxidized lipofuscin accumulates during aging. Lipofuscin formation might cause impaired lysosomal and proteasomal degradation, metal ion accumulation, increased reactive oxygen species formation, and apoptosis. CRITICAL ISSUES It is still unclear to which extent protein oxidation is involved in the progression of aging and in the development of some age-related diseases. FUTURE DIRECTIONS An extensive knowledge of the effects of protein oxidation on the aging process and its contribution to the development of age-related diseases could enable further strategies to reduce age-related impairments. Strategies aimed at lowering aggregate formation might be a straightforward intervention to reduce age-related malfunctions of organs.
Collapse
Affiliation(s)
- Sandra Reeg
- German Institute of Human Nutrition , Nuthetal, Germany
| | - Tilman Grune
- German Institute of Human Nutrition , Nuthetal, Germany
| |
Collapse
|
44
|
Side Effect of Tris on the Interaction of Amyloid β-peptide with Cu2+: Evidence for Tris–Aβ–Cu2+ Ternary Complex Formation. Appl Biochem Biotechnol 2015; 176:56-65. [DOI: 10.1007/s12010-015-1512-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/21/2015] [Indexed: 12/28/2022]
|
45
|
Nguyen M, Rechignat L, Robert A, Meunier B. The Necessity of Having a Tetradentate Ligand to Extract Copper(II) Ions from Amyloids. ChemistryOpen 2014; 4:27-31. [PMID: 25861567 PMCID: PMC4380950 DOI: 10.1002/open.201402075] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Indexed: 01/18/2023] Open
Abstract
The accumulation of redox-active metal ions, in particular copper, in amyloid plaques is considered to the cause of the intensive oxidation damage to the brain of patients with Alzheimers disease (AD). Drug candidates based on a bis(8-aminoquinoline) tetradentate ligand are able to efficiently extract Cu(2+) from copper-loaded amyloids (Cu-Aβ). Contrarily, in the presence of a bidentate hydroxyquinoline, such as clioquinol, the copper is not released from Aβ, but remains sequestrated within a Aβ-Cu-clioquinol ternary complex that has been characterized by mass spectrometry. Facile extraction of copper(II) at a low amyloid/ligand ratio is essential for the re-introduction of copper in regular metal circulation in the brain. As, upon reduction, the Cu(+) is easily released from the bis(8-aminoquinoline) ligand unable to accommodate Cu(I), it should be taken by proteins with an affinity for copper. So, the tetradentate bis(8-aminoquinoline) described here might act as a regulator of copper homeostasis.
Collapse
Affiliation(s)
- Michel Nguyen
- Laboratoire de Chimie de Coordination du Centre National de la Recherche Scientifique (CNRS) 205 route de Narbonne, BP 44099, 31077 Toulouse cedex 4 (France)
| | - Lionel Rechignat
- Laboratoire de Chimie de Coordination du Centre National de la Recherche Scientifique (CNRS) 205 route de Narbonne, BP 44099, 31077 Toulouse cedex 4 (France)
| | - Anne Robert
- Laboratoire de Chimie de Coordination du Centre National de la Recherche Scientifique (CNRS) 205 route de Narbonne, BP 44099, 31077 Toulouse cedex 4 (France)
| | - Bernard Meunier
- Laboratoire de Chimie de Coordination du Centre National de la Recherche Scientifique (CNRS) 205 route de Narbonne, BP 44099, 31077 Toulouse cedex 4 (France) ; Department of Chemical Engineering, Guangdong University of Technology, Education Mega Center 100 Waihuan Xi Rd, Guangzhou (P. R. China)
| |
Collapse
|
46
|
Chen S, Zhang L, Long Y, Zhou F. Electroanalytical Sensors and Methods for Assays and Studies of Neurological Biomarkers. ELECTROANAL 2014. [DOI: 10.1002/elan.201400040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
47
|
Wang X, Cui M, Zhao C, He L, Zhu D, Wang B, Du W. Regulation of aggregation behavior and neurotoxicity of prion neuropeptides by platinum complexes. Inorg Chem 2014; 53:5044-54. [PMID: 24787240 DOI: 10.1021/ic500092t] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Prion diseases belong to a group of infectious, fatal neurodegenerative disorders. The conformational conversion of a cellular prion protein (PrP(C)) into an abnormal misfolded isoform (PrP(Sc)) is the key event in prion disease pathology. PrP106-126 resembles PrP(Sc) in some physicochemical and biological characteristics, such as apoptosis induction in neurons, fibrillar formation, and mediation of the conversion of native cellular PrP(C) to PrP(Sc). Numerous studies have been conducted to explore the inhibiting methods on the aggregation and neurotoxicity of prion neuropeptide PrP106-126. We showed that PrP106-126 aggregation, as assessed by fluorescence assay and atomic force microscopy, is inhibited by platinum complexes cisplatin, carboplatin, and Pt(bpy)Cl2. ESI-MS and NMR assessments of PrP106-126 and its mutant peptides demonstrate that platinum complexes bind to the peptides in coordination and nonbonded interactions, which rely on the ligand properties and the peptide sequence. In peptides, methionine residue is preferred as a potent binding site over histidine residue for the studied platinum complexes, implying a typical thiophile characteristic of platinum. The neurotoxicity induced by PrP106-126 is better inhibited by Pt(bpy)Cl2 and cisplatin. Furthermore, the ligand configuration contributes to both the binding affinity and the inhibition of peptide aggregation. The pursuit of novel platinum candidates that selectively target prion neuropeptide is noteworthy for medicinal inorganic chemistry and chemical biology.
Collapse
Affiliation(s)
- Xuesong Wang
- Department of Chemistry, Renmin University of China , Beijing 100872, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
48
|
Alí-Torres J, Mirats A, Maréchal JD, Rodríguez-Santiago L, Sodupe M. 3D structures and redox potentials of Cu2+-Aβ(1-16) complexes at different pH: a computational study. J Phys Chem B 2014; 118:4840-50. [PMID: 24738872 DOI: 10.1021/jp5019718] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Oxidative stress induced by redox-active metal cations such as Cu(2+) is a key event in the development of Alzheimer's disease. A detailed knowledge of the structure of Cu(2+)-Aβ complex is thus important to get a better understanding of this critical process. In the present study, we use a computational approach that combines homology modeling with quantum-mechanics-based methods to determine plausible 3D structures of Cu(2+)-Aβ(1-16) complexes that enclose the different metal coordination spheres proposed experimentally at different pH values. With these models in hand, we determine their standard reduction potential (SRP) with the aim of getting new insights into the relation between the structure of these complexes and their redox behavior. Results show that in all cases copper reduction induces CObackbone decoordination, which, for distorted square planar structures in the oxidized state (Ia_δδ, IIa_εδε, IIa_εεε, and IIc_ε), leads to tricoordinated species. For the pentacoordinated structural candidate Ib_δε with Glu11 at the apical position, the reduction leads to a distorted tetrahedral structure. The present results highlight the importance of the nature of the ligands on the SRP. The computed values (with respect to the standard hydrogen electrode) for complexes enclosing negatively charged ligands in the coordination sphere (from -0.81 to -0.12 V) are significantly lower than those computed for models involving neutral ligands (from 0.19 to 0.28 V). Major geometry changes induced by reduction, on both the metal site and the peptide configuration, are discussed as well as their possible influence in the formation of reactive oxygen species.
Collapse
Affiliation(s)
- Jorge Alí-Torres
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Bellaterra, Barcelona, Spain
| | | | | | | | | |
Collapse
|
49
|
Lee HJ, Korshavn KJ, Kochi A, Derrick JS, Lim MH. Cholesterol and metal ions in Alzheimer's disease. Chem Soc Rev 2014; 43:6672-82. [DOI: 10.1039/c4cs00005f] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
50
|
Everett J, Céspedes E, Shelford LR, Exley C, Collingwood JF, Dobson J, van der Laan G, Jenkins CA, Arenholz E, Telling ND. Ferrous iron formation following the co-aggregation of ferric iron and the Alzheimer's disease peptide β-amyloid (1-42). J R Soc Interface 2014; 11:20140165. [PMID: 24671940 PMCID: PMC4006257 DOI: 10.1098/rsif.2014.0165] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
For decades, a link between increased levels of iron and areas of Alzheimer's disease (AD) pathology has been recognized, including AD lesions comprised of the peptide β-amyloid (Aβ). Despite many observations of this association, the relationship between Aβ and iron is poorly understood. Using X-ray microspectroscopy, X-ray absorption spectroscopy, electron microscopy and spectrophotometric iron(II) quantification techniques, we examine the interaction between Aβ(1–42) and synthetic iron(III), reminiscent of ferric iron stores in the brain. We report Aβ to be capable of accumulating iron(III) within amyloid aggregates, with this process resulting in Aβ-mediated reduction of iron(III) to a redox-active iron(II) phase. Additionally, we show that the presence of aluminium increases the reductive capacity of Aβ, enabling the redox cycling of the iron. These results demonstrate the ability of Aβ to accumulate iron, offering an explanation for previously observed local increases in iron concentration associated with AD lesions. Furthermore, the ability of iron to form redox-active iron phases from ferric precursors provides an origin both for the redox-active iron previously witnessed in AD tissue, and the increased levels of oxidative stress characteristic of AD. These interactions between Aβ and iron deliver valuable insights into the process of AD progression, which may ultimately provide targets for disease therapies.
Collapse
Affiliation(s)
- J Everett
- Institute for Science and Technology in Medicine, Keele University, , Stoke-on-Trent, Staffordshire ST4 7QB, UK
| | | | | | | | | | | | | | | | | | | |
Collapse
|