1
|
Umeda H, Suda K, Yokogawa D, Azumaya Y, Kitada N, Maki SA, Kawashima SA, Mitsunuma H, Yamanashi Y, Kanai M. Unimolecular Chemiexcited Oxygenation of Pathogenic Amyloids. Angew Chem Int Ed Engl 2024; 63:e202405605. [PMID: 38757875 DOI: 10.1002/anie.202405605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/09/2024] [Accepted: 05/17/2024] [Indexed: 05/18/2024]
Abstract
Pathogenic protein aggregates, called amyloids, are etiologically relevant to various diseases, including neurodegenerative Alzheimer disease. Catalytic photooxygenation of amyloids, such as amyloid-β (Aβ), reduces their toxicity; however, the requirement for light irradiation may limit its utility in large animals, including humans, due to the low tissue permeability of light. Here, we report that Cypridina luciferin analogs, dmCLA-Cl and dmCLA-Br, promoted selective oxygenation of amyloids through chemiexcitation without external light irradiation. Further structural optimization of dmCLA-Cl led to the identification of a derivative with a polar carboxylate functional group and low cellular toxicity: dmCLA-Cl-acid. dmCLA-Cl-acid promoted oxygenation of Aβ amyloid and reduced its cellular toxicity without photoirradiation. The chemiexcited oxygenation developed in this study may be an effective approach to neutralizing the toxicity of amyloids, which can accumulate deep inside the body, and treating amyloidosis.
Collapse
Affiliation(s)
- Hiroki Umeda
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Kayo Suda
- Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan
| | - Daisuke Yokogawa
- Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan
| | - Yuto Azumaya
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Nobuo Kitada
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Tokyo, 182-8585, Japan
| | - Shojiro A Maki
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Tokyo, 182-8585, Japan
| | - Shigehiro A Kawashima
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Harunobu Mitsunuma
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yuki Yamanashi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| |
Collapse
|
2
|
Liu B, Radiom M, Zhou J, Yan H, Zhang J, Wu D, Sun Q, Xuan Q, Li Y, Mezzenga R. Cation Triggered Self-Assembly of α-Lactalbumin Nanotubes. NANO LETTERS 2024. [PMID: 38598498 DOI: 10.1021/acs.nanolett.4c00601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Metal ions play a dual role in biological systems. Although they actively participate in vital life processes, they may contribute to protein aggregation and misfolding and thus contribute to development of diseases and other pathologies. In nanofabrication, metal ions mediate the formation of nanostructures with diverse properties. Here, we investigated the self-assembly of α-lactalbumin into nanotubes induced by coordination with metal ions, screened among the series Mn2+, Co2+, Ni2+, Zn2+, Cd2+, and Au3+. Our results revealed that the affinity of metal ions toward hydrolyzed α-lactalbumin peptides not only impacts the kinetics of nanotube formation but also influences their length and rigidity. These findings expand our understanding of supramolecular assembly processes in protein-based materials and pave the way for designing novel materials such as metallogels in biochip and biosensor applications.
Collapse
Affiliation(s)
- Bin Liu
- Key Laboratory of Precision Nutrition and Food Quality, Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Department of Nutrition and Health, China Agricultural University, Beijing 100091, P. R. China
| | - Milad Radiom
- Department of Health Sciences & Technology, ETH Zurich, 8092 Zürich, Switzerland
| | - Jiangtao Zhou
- Department of Health Sciences & Technology, ETH Zurich, 8092 Zürich, Switzerland
| | - Huiling Yan
- Key Laboratory of Precision Nutrition and Food Quality, Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Jipeng Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Di Wu
- Department of Health Sciences & Technology, ETH Zurich, 8092 Zürich, Switzerland
| | - Qiyao Sun
- Department of Health Sciences & Technology, ETH Zurich, 8092 Zürich, Switzerland
| | - Qize Xuan
- Department of Health Sciences & Technology, ETH Zurich, 8092 Zürich, Switzerland
| | - Yuan Li
- Key Laboratory of Precision Nutrition and Food Quality, Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Raffaele Mezzenga
- Department of Health Sciences & Technology, ETH Zurich, 8092 Zürich, Switzerland
- Department of Materials, ETH Zurich, 8092 Zürich, Switzerland
| |
Collapse
|
3
|
Grcic L, Leech G, Kwan K, Storr T. Targeting misfolding and aggregation of the amyloid-β peptide and mutant p53 protein using multifunctional molecules. Chem Commun (Camb) 2024; 60:1372-1388. [PMID: 38204416 DOI: 10.1039/d3cc05834d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Biomolecule misfolding and aggregation play a major role in human disease, spanning from neurodegeneration to cancer. Inhibition of these processes is of considerable interest, and due to the multifactorial nature of these diseases, the development of drugs that act on multiple pathways simultaneously is a promising approach. This Feature Article focuses on the development of multifunctional molecules designed to inhibit the misfolding and aggregation of the amyloid-β (Aβ) peptide in Alzheimer's disease (AD), and the mutant p53 protein in cancer. While for the former, the goal is to accelerate the removal of the Aβ peptide and associated aggregates, for the latter, the goal is reactivation via stabilization of the active folded form of mutant p53 protein and/or aggregation inhibition. Due to the similar aggregation pathway of the Aβ peptide and mutant p53 protein, a common therapeutic approach may be applicable.
Collapse
Affiliation(s)
- Lauryn Grcic
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| | - Grace Leech
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| | - Kalvin Kwan
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| | - Tim Storr
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| |
Collapse
|
4
|
Oliveri V. Unveiling the Effects of Copper Ions in the Aggregation of Amyloidogenic Proteins. Molecules 2023; 28:6446. [PMID: 37764220 PMCID: PMC10537474 DOI: 10.3390/molecules28186446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
Amyloid diseases have become a global concern due to their increasing prevalence. Transition metals, including copper, can affect the aggregation of the pathological proteins involved in these diseases. Copper ions play vital roles in organisms, but the disruption of their homeostasis can negatively impact neuronal function and contribute to amyloid diseases with toxic protein aggregates, oxidative stress, mitochondrial dysfunction, impaired cellular signaling, inflammation, and cell death. Gaining insight into the imbalance of copper ions and its impact on protein folding and aggregation is crucial for developing focused therapies. This review examines the influence of copper ions on significant amyloid proteins/peptides, offering a comprehensive overview of the current understanding in this field.
Collapse
Affiliation(s)
- Valentina Oliveri
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A Doria 6, 95125 Catania, Italy
| |
Collapse
|
5
|
Dohoney RA, Joseph JA, Baysah C, Thomas AG, Siwakoti A, Ball TD, Kumar S. "Common-Precursor" Protein Mimetic Approach to Rescue Aβ Aggregation-Mediated Alzheimer's Phenotypes. ACS Chem Biol 2023. [PMID: 37367833 DOI: 10.1021/acschembio.3c00120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Abberent protein-protein interactions (aPPIs) are associated with an array of pathological conditions, which make them important therapeutic targets. The aPPIs are mediated via specific chemical interactions that spread over a large and hydrophobic surface. Therefore, ligands that can complement the surface topography and chemical fingerprints could manipulate aPPIs. Oligopyridylamides (OPs) are synthetic protein mimetics that have been shown to manipulate aPPIs. However, the previous OP library used to disrupt these aPPIs was moderate in number (∼30 OPs) with very limited chemical diversity. The onus is on the laborious and time-consuming synthetic pathways with multiple chromatography steps. We have developed a novel chromatography-free technique to synthesize a highly diverse chemical library of OPs using a "common-precursor" approach. We significantly expanded the chemical diversity of OPs using a chromatography-free high-yielding method. To validate our novel approach, we have synthesized an OP with identical chemical diversity to a pre-existing OP-based potent inhibitor of Aβ aggregation, a process central to Alzheimer's disease (AD). The newly synthesized OP ligand (RD242) was very potent in inhibiting Aβ aggregation and rescuing AD phenotypes in an in vivo model. Moreover, RD242 was very effective in rescuing AD phenotypes in a post-disease onset AD model. We envision that our "common-precursor" synthetic approach will have tremendous potential as it is expandable for other oligoamide scaffolds to enhance affinity for disease-relevant targets.
Collapse
Affiliation(s)
- Ryan A Dohoney
- The Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
- The Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado 80210, United States
| | - Johnson A Joseph
- The Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
- The Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado 80210, United States
| | - Charles Baysah
- The Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
- The Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado 80210, United States
| | - Alexandra G Thomas
- The Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado 80210, United States
- The Department of Biological Sciences, University of Denver, Denver, Colorado 80210, United States
| | - Apshara Siwakoti
- The Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado 80210, United States
- The Department of Biological Sciences, University of Denver, Denver, Colorado 80210, United States
| | - Tyler D Ball
- The Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
- The Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado 80210, United States
| | - Sunil Kumar
- The Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
- The Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado 80210, United States
| |
Collapse
|
6
|
Du Z, Nam E, Lin Y, Hong M, Molnár T, Kondo I, Ishimori K, Baik MH, Lee YH, Lim MH. Unveiling the impact of oxidation-driven endogenous protein interactions on the dynamics of amyloid-β aggregation and toxicity. Chem Sci 2023; 14:5340-5349. [PMID: 37234895 PMCID: PMC10208028 DOI: 10.1039/d3sc00881a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Cytochrome c (Cyt c), a multifunctional protein with a crucial role in controlling cell fate, has been implicated in the amyloid pathology associated with Alzheimer's disease (AD); however, the interaction between Cyt c and amyloid-β (Aβ) with the consequent impact on the aggregation and toxicity of Aβ is not known. Here we report that Cyt c can directly bind to Aβ and alter the aggregation and toxicity profiles of Aβ in a manner that is dependent on the presence of a peroxide. When combined with hydrogen peroxide (H2O2), Cyt c redirects Aβ peptides into less toxic, off-pathway amorphous aggregates, whereas without H2O2, it promotes Aβ fibrillization. The mechanisms behind these effects may involve a combination of the complexation between Cyt c and Aβ, the oxidation of Aβ by Cyt c and H2O2, and the modification of Cyt c by H2O2. Our findings demonstrate a new function of Cyt c as a modulator against Aβ amyloidogenesis.
Collapse
Affiliation(s)
- Zhi Du
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Department of Biomedical Engineering, College of Biomedical Engineering, Taiyuan University of Technology Taiyuan 030024 PR China
| | - Eunju Nam
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Yuxi Lin
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute (KBSI) Ochang Chungbuk 28119 Republic of Korea
| | - Mannkyu Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Tamás Molnár
- Department of Biochemistry, Institute of Biology, Eötvös Loránd University H-1117 Budapest Hungary
| | - Ikufumi Kondo
- Graduate School of Chemical Sciences and Engineering, Hokkaido University Kita 13, Nishi 8, Kita-ku Sapporo 060-8628 Japan
| | - Koichiro Ishimori
- Graduate School of Chemical Sciences and Engineering, Hokkaido University Kita 13, Nishi 8, Kita-ku Sapporo 060-8628 Japan
- Department of Chemistry, Faculty of Science, Hokkaido University Kita 10, Nishi 8, Kita-ku Sapporo 060-0810 Japan
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Young-Ho Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute (KBSI) Ochang Chungbuk 28119 Republic of Korea
- Bio-Analytical Science, University of Science and Technology (UST) Daejeon 34113 Republic of Korea
- Graduate School of Analytical Science and Technology, Chungnam National University Daejeon 34134 Republic of Korea
- Research Headquarters, Korea Brain Research Institute (KBRI) Daegu 41068 Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| |
Collapse
|
7
|
Hong M, Kim M, Yoon J, Lee SH, Baik MH, Lim MH. Excited-State Intramolecular Hydrogen Transfer of Compact Molecules Controls Amyloid Aggregation Profiles. JACS AU 2022; 2:2001-2012. [PMID: 36186552 PMCID: PMC9516708 DOI: 10.1021/jacsau.2c00281] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 07/11/2022] [Accepted: 07/27/2022] [Indexed: 06/16/2023]
Abstract
Developing chemical methodologies to directly modify harmful biomolecules affords the mitigation of their toxicity by persistent changes in their properties and structures. Here we report compact photosensitizers composed of the anthraquinone (AQ) backbone that undergo excited-state intramolecular hydrogen transfer, effectively oxidize amyloidogenic peptides, and, subsequently, alter their aggregation pathways. Density functional theory calculations showed that the appropriate position of the hydroxyl groups in the AQ backbone and the consequent intramolecular hydrogen transfer can facilitate the energy transfer to triplet oxygen. Biochemical and biophysical investigations confirmed that these photoactive chemical reagents can oxidatively vary both metal-free amyloid-β (Aβ) and metal-bound Aβ, thereby redirecting their on-pathway aggregation into off-pathway as well as disassembling their preformed aggregates. Moreover, the in vivo histochemical analysis of Aβ species produced upon photoactivation of the most promising candidate demonstrated that they do not aggregate into oligomeric or fibrillar aggregates in the brain. Overall, our combined computational and experimental studies validate a light-based approach for designing small molecules, with minimum structural complexity, as chemical reagents targeting and controlling amyloidogenic peptides associated with neurodegenerative disorders.
Collapse
Affiliation(s)
- Mannkyu Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Mingeun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jiwon Yoon
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seung-Hee Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| |
Collapse
|
8
|
Han J, Yoon J, Shin J, Nam E, Qian T, Li Y, Park K, Lee SH, Lim MH. Conformational and functional changes of the native neuropeptide somatostatin occur in the presence of copper and amyloid-β. Nat Chem 2022; 14:1021-1030. [PMID: 35817963 DOI: 10.1038/s41557-022-00984-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 05/26/2022] [Indexed: 11/09/2022]
Abstract
The progression of neurodegenerative disorders can lead to impaired neurotransmission; however, the role of pathogenic factors associated with these diseases and their impact on the structures and functions of neurotransmitters have not been clearly established. Here we report the discovery that conformational and functional changes of a native neuropeptide, somatostatin (SST), occur in the presence of copper ions, metal-free amyloid-β (Aβ) and metal-bound Aβ (metal-Aβ) found as pathological factors in the brains of patients with Alzheimer's disease. These pathological elements induce the self-assembly of SST and, consequently, prevent it from binding to the receptor. In the reverse direction, SST notably modifies the aggregation profiles of Aβ species in the presence of metal ions, attenuating their cytotoxicity and interactions with cell membranes. Our work demonstrates a loss of normal function of SST as a neurotransmitter and a gain of its modulative function against metal-Aβ under pathological conditions.
Collapse
Affiliation(s)
- Jiyeon Han
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Jiwon Yoon
- Department of Biological Sciences, KAIST, Daejeon, Republic of Korea
| | - Jeongcheol Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Eunju Nam
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Tongrui Qian
- State Key Laboratory Membrane Biology, Peking University School of Life Sciences, Beijing, China
| | - Yulong Li
- State Key Laboratory Membrane Biology, Peking University School of Life Sciences, Beijing, China.,PKU-IDG/McGovern Institute for Brain Research, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Kiyoung Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
| | - Seung-Hee Lee
- Department of Biological Sciences, KAIST, Daejeon, Republic of Korea.
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
| |
Collapse
|
9
|
Yao Y, Li W, Han Q, Lv G, Li C, Sun A. A Pyridyl Zn (II) Chelate for the Fluorescent Detection of Aβ Fibrils. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yusi Yao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004, Zhejiang P. R. China
| | - Wenhui Li
- Laboratory of Neurodegenerative Diseases and Molecular Imaging Shanghai University of Medicine & Health Sciences Shanghai 201318, Shanghai P. R. China
| | - Qiuqin Han
- Laboratory of Neurodegenerative Diseases and Molecular Imaging Shanghai University of Medicine & Health Sciences Shanghai 201318, Shanghai P. R. China
| | - Guanglei Lv
- Laboratory of Neurodegenerative Diseases and Molecular Imaging Shanghai University of Medicine & Health Sciences Shanghai 201318, Shanghai P. R. China
| | - Chunxia Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004, Zhejiang P. R. China
| | - Anyang Sun
- Laboratory of Neurodegenerative Diseases and Molecular Imaging Shanghai University of Medicine & Health Sciences Shanghai 201318, Shanghai P. R. China
| |
Collapse
|
10
|
Singh SK, Balendra V, Obaid AA, Esposto J, Tikhonova MA, Gautam NK, Poeggeler B. Copper-Mediated β-Amyloid Toxicity and its Chelation Therapy in Alzheimer's Disease. Metallomics 2022; 14:6554256. [PMID: 35333348 DOI: 10.1093/mtomcs/mfac018] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 03/08/2022] [Indexed: 01/10/2023]
Abstract
The link between bio-metals, Alzheimer's disease (AD), and its associated protein, amyloid-β (Aβ) is very complex and one of the most studied aspects currently. Alzheimer's disease, a progressive neurodegenerative disease, is proposed to occurs due to the misfolding and aggregation of Aβ. Dyshomeostasis of metal ions and their interaction with Aβ has largely been implicated in AD. Copper plays a crucial role in amyloid-β toxicity and AD development potentially occurs through direct interaction with the copper-binding motif of APP and different amino acid residues of Aβ. Previous reports suggest that high levels of copper accumulation in the AD brain result in modulation of toxic Aβ peptide levels, implicating the role of copper in the pathophysiology of AD. In this review, we explore the possible mode of copper ion interaction with Aβ which accelerates the kinetics of fibril formation and promote amyloid-β mediated cell toxicity in Alzheimer's disease and the potential use of various copper chelators in the prevention of copper-mediated Aβ toxicity.
Collapse
Affiliation(s)
- Sandeep Kumar Singh
- Indian Scientific Education and Technology Foundation, Lucknow-226002, India
| | - Vyshnavy Balendra
- Saint James School of Medicine, Park Ridge, Illinois, United States of America 60068
| | - Ahmad A Obaid
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Josephine Esposto
- Department of Environmental and Life Sciences, Trent University, Peterborough, Ontario, CanadaK9L 0G2
| | - Maria A Tikhonova
- Laboratory of the Experimental Models of Neurodegenerative Processes, Scientific Research Institute of Neurosciences and Medicine; Timakov st., 4, Novosibirsk, 630117, Russia
| | - Naveen Kumar Gautam
- Department of Urology and Renal Transplantation, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Burkhard Poeggeler
- Johann-Friedrich-Blumenbach-Institute for Zoology & Anthropology, Faculty of Biology and Psychology, Georg-August-University of Göttingen, Am Türmchen 3,33332 Gütersloh, Germany
| |
Collapse
|
11
|
Luo J, Wang H, Wu J, Romankov V, Daffé N, Dreiser J. Amyloid-beta–copper interaction studied by simultaneous nitrogen K and copper L2,3-edge soft X-ray absorption spectroscopy. iScience 2021; 24:103465. [PMID: 34988394 PMCID: PMC8710549 DOI: 10.1016/j.isci.2021.103465] [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: 07/26/2021] [Revised: 09/19/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022] Open
Abstract
We study the interaction between amyloid β (Aβ) peptides and Cu and Zn metal ions by using soft X-ray absorption spectroscopy. The spectral features of the peptides and Cu are simultaneously characterized by recording spectra at the N K-edge and at the Cu L2,3-edges. In the presence of the peptides, the Cu L2,3-edge shows a fingerprint of monovalent Cu(I), caused by the interaction with the peptides. The appearance of Cu(I) is less significant at an acidic pH than at a basic pH. Furthermore, aggregation leads to a smaller signature of Cu(I). N K-edge spectra reveal that Cu and Zn ions exhibit a different coordination with the nitrogen atoms in the peptides. This suggests different roles of Cu and Zn in the peptide aggregation. Our work provides physical insight into the participation of the metal ions and Aβ in the toxic reactive oxygen species formation. Amyloid-beta–copper interaction leads to distinct X-ray spectroscopic signatures After interaction monovalent copper(I) is found The X-ray signatures strongly depend on the pH and incubation conditions
Collapse
Affiliation(s)
- Jinghui Luo
- Department of Biology and Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
- Corresponding author
| | - Hongzhi Wang
- Department of Biology and Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Jinming Wu
- Department of Biology and Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Vladyslav Romankov
- Swiss Light Source, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Niéli Daffé
- Swiss Light Source, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Jan Dreiser
- Swiss Light Source, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
- Corresponding author
| |
Collapse
|
12
|
Han J, Du Z, Lim MH. Mechanistic Insight into the Design of Chemical Tools to Control Multiple Pathogenic Features in Alzheimer's Disease. Acc Chem Res 2021; 54:3930-3940. [PMID: 34606227 DOI: 10.1021/acs.accounts.1c00457] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Alzheimer's disease (AD) is the most common form of dementia and is characterized by memory loss and cognitive decline. Approximately 50 million people worldwide are suffering from AD and related dementias. Very recently, the first new drug targeting amyloid-β (Aβ) aggregates has been approved by the United States Food and Drug Administration, but its efficacy against AD is still debatable. Other available treatments temporarily relieve the symptoms of AD. The difficulty in discovering effective therapeutics for AD originates from its complicated nature, which results from the interrelated pathogenic pathways led by multiple factors. Therefore, to develop potent disease-modifying drugs, multiple pathological features found in AD should be fully elucidated.Our laboratory has been designing small molecules as chemical tools to investigate the individual and interrelated pathologies triggered by four pathogenic elements found in the AD-affected brain: metal-free Aβ, metal-bound Aβ, reactive oxygen species (ROS), and acetylcholinesterase (AChE). Aβ peptides are partially folded and aggregate into oligomers, protofibrils, and fibrils. Aβ aggregates are considered to be neurotoxic, causing membrane disruption, aberrant cellular signaling, and organelle dysfunction. In addition, highly concentrated metal ions accumulate in senile plaques mainly composed of Aβ aggregates, which indicates that metal ions can directly interact with Aβ. Metal binding to Aβ affects the aggregation and conformation of the peptide. Moreover, the impaired homeostasis of redox-active Fe(II/III) and Cu(I/II) induces the overproduction of ROS through Fenton chemistry and Fenton-like reactions, respectively. Dysregulated ROS prompt oxidative-stress-damaging biological components such as lipids, proteins, and nucleic acids and, consequently, lead to neuronal death. Finally, the loss of cholinergic transmission mediated by the neurotransmitter acetylcholine (ACh) contributes to cognitive deficits observed in AD.In this Account, we illustrate the design principles for small-molecule-based chemical tools with reactivities against metal-free Aβ, metal-bound Aβ, ROS, and AChE. More importantly, mechanistic details at the molecular level are highlighted with some examples of chemical tools that were developed by our group. The aggregation of metal-free Aβ can be modulated by modifying amino acid residues responsible for self-assembling Aβ or disassembling preformed fibrils. To alter the aggregation and cytotoxicity profiles of metal-bound Aβ, ternary complexation, metal chelation, and modifications onto metal-binding residues can be effective tactics. The presence and production of ROS are able to be controlled by small molecules with antioxidant and metal-binding properties. Finally, inhibiting substrate access or substrate binding at the active site of AChE can diminish its activity, which restores the levels of ACh. Overall, our rational approaches demonstrate the feasibility of developing small molecules as chemical tools that can target and modulate multiple pathological factors associated with AD and can be useful for gaining a greater understanding of the multifaceted pathology of the disease.
Collapse
Affiliation(s)
- Jiyeon Han
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Zhi Du
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| |
Collapse
|
13
|
Nam G, Suh JM, Yi Y, Lim MH. Drug repurposing: small molecules against Cu(II)-amyloid-β and free radicals. J Inorg Biochem 2021; 224:111592. [PMID: 34482237 DOI: 10.1016/j.jinorgbio.2021.111592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/21/2021] [Accepted: 08/22/2021] [Indexed: 10/20/2022]
Abstract
Alzheimer's disease (AD) presents a complex pathology entangling numerous pathological factors, including amyloid-β (Aβ), metal ions, and reactive oxygen species (ROS). Increasing evidence reveals pathological connections among these distinct components in AD. For instance, the association between the amyloid cascade and metal ion hypotheses has introduced a novel pathogenic target: metal-bound Aβ. Investigation of such interconnections requires substantial research and can be expedited by chemical reagents that are able to modify multiple pathogenic factors in AD. Drug repurposing is an efficient approach for rediscovering previously utilized molecules with desirable biological and pharmaceutical properties as chemical reagents. Herein, we report the evaluation of three pre-approved drug molecules, selected based on their chemical structure and properties, as chemical reagents that can be used for elucidating the complicated pathology of AD.
Collapse
Affiliation(s)
- Geewoo Nam
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jong-Min Suh
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yelim Yi
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
| |
Collapse
|
14
|
Xie Y, Wang Y, Jiang S, Xiang X, Wang J, Ning L. Novel strategies for the fight of Alzheimer's disease targeting amyloid-β protein. J Drug Target 2021; 30:259-268. [PMID: 34435898 DOI: 10.1080/1061186x.2021.1973482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Alzheimer's disease (AD), which is recognised as a devastating neurodegenerative disease throughout the world and lack of effective treatments, is a growing concern in modern society with a growing population of elderly patients. A growing number of studies reveal that abnormal accumulation and deposition of Aβ is responsible for AD. Inspired by this, strategies for the treatment of AD targeting-Aβ clearance have been discussed for a long period, exploring new drugs which is capable of destroying soluble Aβ oligomers and unsolvable Aβ aggregates. In this paper, results of recent clinical trials on several anti-amyloid-β drugs are presented and several emerging anti-amyloid AD therapies based on recent studies are reviewed. Furthermore, some of the current challenges and novel strategies to prevent AD are addressed. Herein, this review focuses on current pharmacotherapy of AD targeting-Aβ and intends to design a promising therapeutic agent for AD treatment.
Collapse
Affiliation(s)
- Yang Xie
- Pharmaceutical Engineering Center, Chongqing Medical and Pharmaceutical College, Chongqing, China
| | - Yan Wang
- Chemistry and Chemical Engineering College, Huangshan University, Huangshan, China
| | - Shangfei Jiang
- Pharmaceutical Engineering Center, Chongqing Medical and Pharmaceutical College, Chongqing, China
| | - Xiaohong Xiang
- Pharmaceutical Engineering Center, Chongqing Medical and Pharmaceutical College, Chongqing, China
| | - Jianhua Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, China
| | - Linhong Ning
- Pharmaceutical Engineering Center, Chongqing Medical and Pharmaceutical College, Chongqing, China
| |
Collapse
|
15
|
Chen X, Shang J, Chen Y, Kong X, Hojo M. Ion aggregations of alkali or alkaline earth metal ions with 2,6-naphthalenedicarboxylate in binary acetonitrile–water and acetonitrile-methanol media. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
16
|
Sun L, Cho HJ, Sen S, Arango AS, Huynh TT, Huang Y, Bandara N, Rogers BE, Tajkhorshid E, Mirica LM. Amphiphilic Distyrylbenzene Derivatives as Potential Therapeutic and Imaging Agents for Soluble and Insoluble Amyloid β Aggregates in Alzheimer's Disease. J Am Chem Soc 2021; 143:10462-10476. [PMID: 34213901 PMCID: PMC8762579 DOI: 10.1021/jacs.1c05470] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alzheimer's Disease (AD) is the most common neurodegenerative disease, and efficient therapeutic and early diagnostic agents for AD are still lacking. Herein, we report the development of a novel amphiphilic compound, LS-4, generated by linking a hydrophobic amyloid-binding distyrylbenzene fragment with a hydrophilic triazamacrocycle, which dramatically increases the binding affinity toward various amyloid β (Aβ) peptide aggregates, especially for soluble Aβ oligomers. Moreover, upon the administration of LS-4 to 5xFAD mice, fluorescence imaging of LS-4-treated brain sections reveals that LS-4 can penetrate the blood-brain barrier and bind to the Aβ oligomers in vivo. In addition, the treatment of 5xFAD mice with LS-4 reduces the amount of both amyloid plaques and associated phosphorylated tau aggregates vs the vehicle-treated 5xFAD mice, while microglia activation is also reduced. Molecular dynamics simulations corroborate the observation that introducing a hydrophilic moiety into the molecular structure of LS-4 can enhance the electrostatic interactions with the polar residues of the Aβ species. Finally, exploiting the Cu2+-chelating property of the triazamacrocycle, we performed a series of imaging and biodistribution studies that show the 64Cu-LS-4 complex binds to the amyloid plaques and can accumulate to a significantly larger extent in the 5xFAD mouse brains vs the wild-type controls. Overall, these results illustrate that the novel strategy, to employ an amphiphilic molecule containing a hydrophilic moiety attached to a hydrophobic amyloid-binding fragment, can increase the binding affinity for both soluble and insoluble Aβ aggregates and can thus be used to detect and regulate various Aβ species in AD.
Collapse
Affiliation(s)
- Liang Sun
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Hong-Jun Cho
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Soumyo Sen
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Center for Biophysics and Quantitative Biology and Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Andres S Arango
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Center for Biophysics and Quantitative Biology and Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Truc T Huynh
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63108, United States
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, United States
| | - Yiran Huang
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Nilantha Bandara
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63108, United States
| | - Buck E Rogers
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63108, United States
| | - Emad Tajkhorshid
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Center for Biophysics and Quantitative Biology and Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Liviu M Mirica
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, Missouri 63110, United States
| |
Collapse
|
17
|
Urbanc B. Cross-Linked Amyloid β-Protein Oligomers: A Missing Link in Alzheimer's Disease Pathology? J Phys Chem B 2021; 125:1307-1316. [PMID: 33440940 DOI: 10.1021/acs.jpcb.0c07716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Amyloid β-protein (Aβ) oligomers are broadly viewed as the proximate mediators of toxicity in Alzheimer's disease (AD). Recent studies, however, provide substantial evidence that Aβ is involved in protection and repair of the central nervous system whereby Aβ oligomer and subsequent fibril formation are integral to its normal antimicrobial and antiviral function. These developments raise a question of what exactly makes Aβ oligomers toxic in the context of AD. This Perspective describes a paradigm shift in the search for toxic Aβ oligomer species that involves oxidative-stress-induced stabilization of Aβ oligomers via cross-linking and reviews most recent research elucidating structural aspects of cross-linked Aβ oligomers and potential inhibition of their toxicity.
Collapse
Affiliation(s)
- Brigita Urbanc
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
18
|
Abstract
Alzheimer’s disease (AD) is the most common form of dementia, and the prevalence of this currently untreatable disease is expected to rise in step with increased global life expectancy. AD is a multifaceted disorder commonly characterized by extracellular amyloid–beta (Aβ) aggregates, oxidative stress, metal ion dysregulation, and intracellular neurofibrillary tangles. This review will focus on medicinal inorganic chemistry strategies to target AD, with a focus on the Aβ peptide and its relation to metal ion dysregulation and oxidative stress. Multifunctional compounds designed to target multiple disease processes have emerged as promising therapeutic options, and recent reports detailing multifunctional metal-binding compounds, as well as discrete metal complexes, will be discussed.
Collapse
Affiliation(s)
- Tim Storr
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
| |
Collapse
|
19
|
Chen YY, Wang MC, Wang YN, Hu HH, Liu QQ, Liu HJ, Zhao YY. Redox signaling and Alzheimer's disease: from pathomechanism insights to biomarker discovery and therapy strategy. Biomark Res 2020; 8:42. [PMID: 32944245 PMCID: PMC7488504 DOI: 10.1186/s40364-020-00218-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 08/20/2020] [Indexed: 12/20/2022] Open
Abstract
Abstract Aging and average life expectancy have been increasing at a rapid rate, while there is an exponential risk to suffer from brain-related frailties and neurodegenerative diseases as the population ages. Alzheimer's disease (AD) is the most common neurodegenerative disease worldwide with a projected expectation to blossom into the major challenge in elders and the cases are forecasted to increase about 3-fold in the next 40 years. Considering the etiological factors of AD are too complex to be completely understood, there is almost no effective cure to date, suggesting deeper pathomechanism insights are urgently needed. Metabolites are able to reflect the dynamic processes that are in progress or have happened, and metabolomic may therefore provide a more cost-effective and productive route to disease intervention, especially in the arena for pathomechanism exploration and new biomarker identification. In this review, we primarily focused on how redox signaling was involved in AD-related pathologies and the association between redox signaling and altered metabolic pathways. Moreover, we also expatiated the main redox signaling-associated mechanisms and their cross-talk that may be amenable to mechanism-based therapies. Five natural products with promising efficacy on AD inhibition and the benefit of AD intervention on its complications were highlighted as well. Graphical Abstract
Collapse
Affiliation(s)
- Yuan-Yuan Chen
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
| | - Min-Chang Wang
- Instrumental Analysis Center, Xi'an Modern Chemistry Institute, Xi'an, 710065 Shaanxi China
| | - Yan-Ni Wang
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
| | - He-He Hu
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
| | - Qing-Quan Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010 China
| | - Hai-Jing Liu
- Shaanxi Institute for Food and Drug Control, Xi'an, 710065 Shaanxi China
| | - Ying-Yong Zhao
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
| |
Collapse
|
20
|
Li Y, Yang C, Wang S, Yang D, Zhang Y, Xu L, Ma L, Zheng J, Petersen RB, Zheng L, Chen H, Huang K. Copper and iron ions accelerate the prion-like propagation of α-synuclein: A vicious cycle in Parkinson's disease. Int J Biol Macromol 2020; 163:562-573. [PMID: 32629061 DOI: 10.1016/j.ijbiomac.2020.06.274] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/24/2020] [Accepted: 06/29/2020] [Indexed: 12/14/2022]
Abstract
Protein fibrils drive the onset and progression of many diseases in a prion-like manner, i.e. they transcellular propagate through the extracellular space to health cells to initiate toxic aggregation as seeds. The conversion of native α-synuclein into filamentous aggregates in Lewy bodies is a hallmark of Parkinson's disease (PD). Copper and iron ions accumulate in PD brains, however, whether they influence the prion-like propagation of α-synuclein remain unclear. Here, we reported that copper/iron ions accelerate prion-like propagation of α-synuclein fibrils by promoting cellular internalization of α-synuclein fibrils, intracellular α-synuclein aggregation and the subsequent release of mature fibrils to the extracellular space to induce further propagation. Mechanistically, copper/iron ions enhanced α-synuclein fibrils internalization was mediated by negatively charged membrane heparan sulfate proteoglycans (HSPGs). α-Synuclein fibrils formed in the presence of copper/iron ions were more cytotoxic, causing increased ROS production, cell apoptosis, and shortened the lifespan of a C. elegans PD model overexpressing human α-synuclein. Notably, these deleterious effects were ameliorated by two clinically used chelators, triethylenetetramine and deferiprone. Together, our results suggest a new role for heavy metal ions, e.g. copper and iron, in the pathogenesis of PD through accelerating prion-like propagation of α-synuclein fibrils.
Collapse
Affiliation(s)
- Yang Li
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Chen Yang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Shilin Wang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Dong Yang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Yu Zhang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Li Xu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Liang Ma
- Affiliated Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430012, China
| | - Jiaojiao Zheng
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Robert B Petersen
- Foundational Sciences, Central Michigan University College of Medicine, Mt. Pleasant 48858, MI, USA
| | - Ling Zheng
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Hong Chen
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Kun Huang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China.
| |
Collapse
|
21
|
Bhattacharjee A, Ghosh S, Chatterji A, Chakraborty K. Neuron-glia: understanding cellular copper homeostasis, its cross-talk and their contribution towards neurodegenerative diseases. Metallomics 2020; 12:1897-1911. [PMID: 33295934 DOI: 10.1039/d0mt00168f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Over the years, the mechanism of copper homeostasis in various organ systems has gained importance. This is owing to the involvement of copper in a wide range of genetic disorders, most of them involving neurological symptoms. This highlights the importance of copper and its tight regulation in a complex organ system like the brain. It demands understanding the mechanism of copper acquisition and delivery to various cell types overcoming the limitation imposed by the blood brain barrier. The present review aims to investigate the existing work to understand the mechanism and complexity of cellular copper homeostasis in the two major cell types of the CNS - the neurons and the astrocytes. It investigates the mechanism of copper uptake, incorporation and export by these cell types. Furthermore, it brings forth the common as well as the exclusive aspects of neuronal and glial copper homeostasis including the studies from copper-based sensors. Glia act as a mediator of copper supply between the endothelium and the neurons. They possess all the qualifications of acting as a 'copper-sponge' for supply to the neurons. The neurons, on the other hand, require copper for various essential functions like incorporation as a cofactor for enzymes, synaptogenesis, axonal extension, inhibition of postsynaptic excitotoxicity, etc. Lastly, we also aim to understand the neuronal and glial pathology in various copper homeostasis disorders. The etiology of glial pathology and its contribution towards neuronal pathology and vice versa underlies the complexity of the neuropathology associated with the copper metabolism disorders.
Collapse
Affiliation(s)
- Ashima Bhattacharjee
- Amity Institute of Biotechnology, Amity University, Plot No: 36, 37 & 38, Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown, Kolkata, West Bengal 700135, India.
| | | | | | | |
Collapse
|