1
|
Li JY, Zhou CM, Jin RL, Song JH, Yang KC, Li SL, Tan BH, Li YC. The detection methods currently available for protein aggregation in neurological diseases. J Chem Neuroanat 2024; 138:102420. [PMID: 38626816 DOI: 10.1016/j.jchemneu.2024.102420] [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: 12/31/2023] [Revised: 03/30/2024] [Accepted: 04/13/2024] [Indexed: 04/21/2024]
Abstract
Protein aggregation is a pathological feature in various neurodegenerative diseases and is thought to play a crucial role in the onset and progression of neurological disorders. This pathological phenomenon has attracted increasing attention from researchers, but the underlying mechanism has not been fully elucidated yet. Researchers are increasingly interested in identifying chemicals or methods that can effectively detect protein aggregation or maintain protein stability to prevent aggregation formation. To date, several methods are available for detecting protein aggregates, including fluorescence correlation spectroscopy, electron microscopy, and molecular detection methods. Unfortunately, there is still a lack of methods to observe protein aggregation in situ under a microscope. This article reviews the two main aspects of protein aggregation: the mechanisms and detection methods of protein aggregation. The aim is to provide clues for the development of new methods to study this pathological phenomenon.
Collapse
Affiliation(s)
- Jing-Yi Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China
| | - Cheng-Mei Zhou
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China
| | - Rui-Lin Jin
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China
| | - Jia-Hui Song
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China; Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Ke-Chao Yang
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China
| | - Shu-Lei Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China
| | - Bai-Hong Tan
- Laboratory Teaching Center of Basic Medicine, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China
| | - Yan-Chao Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Changchun city, Jilin Province 130021, PR China; Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, PR China.
| |
Collapse
|
2
|
Wang C, Li L, Li J, Zhang J, Qu ZB. Biomimetic Surface Engineering to Modulate the Coffee-Ring Effect for Amyloid-β Detection in Rat Brains. Biomimetics (Basel) 2023; 8:581. [PMID: 38132520 PMCID: PMC10742163 DOI: 10.3390/biomimetics8080581] [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: 11/08/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Surface engineering of nanoparticles has been widely used in biosensing and assays, where sensitivity was mainly limited by plasmonic colour change or electrochemical responses. Here, we report a novel biomimetic sensing strategy involving protein-modified gold nanoparticles (AuNPs), where the modulation strategy was inspired by gastropods in inhibition of coffee-ring effects in their trail-followings. The so-called coffee-ring effect presents the molecular behaviour of AuNPs to a macroscopic ring through aggregation, and thus greatly improves sensitivity. The assay relies upon the different assembly patterns of AuNPs against analytes, resulting in the formation or suppression of coffee-ring effects by the different surface engineering of AuNPs by proteins and peptides. The mechanism of the coffee-ring formation process is examined through experimental characterizations and computational simulations. A practical coffee-ring effect assay is developed for a proof-of-concept target, amyloid β (1-42), which is a typical biomarker of Alzheimer's disease. A novel quasi-titrimetric protocol is constructed for quantitative determination of the target molecule. The assay shows excellent selectivity and sensitivity for the amyloid β monomer, with a low detection limit of 20 pM. Combined with a fluorescent staining technique, the assay is designed as a smart sensor for amyloid β detection and fibrillation evaluation in rat cerebrospinal fluids, which is a potential point-of-care test for Alzheimer's disease. Connections between amyloid fibrillation and different courses of brain ischaemia are also studied, with improved sensitivity, lower sample volumes that are required, convenience for rapid detection, and point-of-care testing.
Collapse
Affiliation(s)
| | | | | | | | - Zhi-Bei Qu
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China; (C.W.); (L.L.)
| |
Collapse
|
3
|
Yu Z, Moshood Y, Wozniak MK, Patel S, Terpstra K, Llano DA, Dobrucki LW, Mirica LM. Amphiphilic Molecules Exhibiting Zwitterionic Excited-State Intramolecular Proton Transfer and Near-Infrared Emission for the Detection of Amyloid β Aggregates in Alzheimer's Disease. Chemistry 2023; 29:e202302408. [PMID: 37616059 PMCID: PMC10840928 DOI: 10.1002/chem.202302408] [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: 07/26/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 08/25/2023]
Abstract
Chromophores with zwitterionic excited-state intramolecular proton transfer (ESIPT) have been shown to have larger Stock shifts and red-shifted emission wavelengths compared to the conventional π-delocalized ESIPT molecules. However, there is still a dearth of design strategies to expand the current library of zwitterionic ESIPT compounds. Herein, a novel zwitterionic excited-state intramolecular proton transfer system is reported, enabled by addition of 1,4,7-triazacyclononane (TACN) fragments on a dicyanomethylene-4H-pyran (DCM) scaffold. The solvent-dependent steady-state photophysical studies, pKa measurements, and computational analysis strongly support that the ESIPT process is more efficient with two TACN groups attached to the DCM scaffold and not affected by polar protic solvents. Impressively, compound DCM-OH-2-DT exhibits a near-infrared (NIR) emission at 740 nm along with an uncommonly large Stokes shift. Moreover, DCM-OH-2-DT shows high affinity towards soluble amyloid β (Aβ) oligomers in vitro and in 5xFAD mouse brain sections, and we have successfully applied DCM-OH-2-DT for the in vivo imaging of Aβ aggregates and demonstrated its potential use as an early diagnostic agent for AD. Overall, this study can provide a general molecular design strategy for developing new zwitterionic ESIPT compounds with NIR emission in vivo imaging applications.
Collapse
Affiliation(s)
- Zhengxin Yu
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Yusuff Moshood
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Marcin K. Wozniak
- Beckman Institute for Advanced Science and Technology, Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana IL 61801, United States
| | - Shrey Patel
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Karna Terpstra
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Daniel A. Llano
- Beckman Institute for Advanced Science and Technology, Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana IL 61801, United States
| | - Lawrence W. Dobrucki
- Beckman Institute for Advanced Science and Technology, Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana IL 61801, United States
| | - Liviu M. Mirica
- Department of Chemistry, Beckman Institute for Advanced Science and Technology, The Neuroscience Program, Carle Illinois College of Medicine, 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, MO 63110, United States
| |
Collapse
|
4
|
Mallesh R, Khan J, Pradhan K, Roy R, Jana NR, Jaisankar P, Ghosh S. Design and Development of Benzothiazole-Based Fluorescent Probes for Selective Detection of Aβ Aggregates in Alzheimer's Disease. ACS Chem Neurosci 2022; 13:2503-2516. [PMID: 35926183 DOI: 10.1021/acschemneuro.2c00361] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The formation and accumulation of amyloid beta (Aβ) peptide are considered the crucial events that are responsible for the progression of Alzheimer's disease (AD). Herein, we have designed and synthesized a series of fluorescent probes by using electron acceptor-donor end groups interacting with a π-conjugating system for the detection of Aβ aggregates. The chemical structure of these probes denoted as RMs, having a conjugated π-system (C═C), showed a maximum emission in PBS (>600 nm), which is the best range for a fluorescent imaging probe. Among all these probes, RM-28 showed an excellent fluorescence property with an emission maximum of >598 nm upon binding to Aβ aggregates. RM-28 also showed high sensitivity (7.5-fold) and high affinities toward Aβ aggregates (Kd = 175.69 ± 4.8 nM; Ka = 0.5 × 107 M-1). It can cross the blood-brain barrier of mice efficiently. The affinity of RM-28 toward Aβ aggregates was observed in 3xTg-AD brain sections of the hippocampus and cortex region using a fluorescent imaging technique, as well as an in vitro fluorescence-based binding assay with Aβ aggregates. Moreover, RM-28 is highly specific to Aβ aggregates and does not bind with intracellular proteins like bovine serum albumin (BSA) and α-synuclein (α-Syn) aggregates. The results indicate that the probe RM-28 emerges as an efficient and veritable highly specific fluorescent probe for the detection of Aβ aggregates in both in vitro and in vivo model systems.
Collapse
Affiliation(s)
- Rathnam Mallesh
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India.,Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India.,National Institute of Pharmaceutical Education and Research, Kolkata, Chunilal Bhawan 168, Maniktala Main Road, Kolkata 700054, India
| | - Juhee Khan
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India.,Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Krishnangsu Pradhan
- Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Rajsekhar Roy
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India
| | - Nihar Ranjan Jana
- School of Bioscience, Indian Institute of Technology, Kharagpur 721302, India
| | - Parasuraman Jaisankar
- Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Surajit Ghosh
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India.,Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India.,National Institute of Pharmaceutical Education and Research, Kolkata, Chunilal Bhawan 168, Maniktala Main Road, Kolkata 700054, India
| |
Collapse
|
5
|
Su D, Diao W, Li J, Pan L, Zhang X, Wu X, Mao W. Strategic Design of Amyloid-β Species Fluorescent Probes for Alzheimer's Disease. ACS Chem Neurosci 2022; 13:540-551. [PMID: 35132849 DOI: 10.1021/acschemneuro.1c00810] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Alzheimer's disease (AD) is a high mortality and high disability rates neurodegenerative disease characterized by irreversible progression and poses a significant social and economic burden throughout the world. However, currently approved AD therapeutic agents only alleviate symptoms and there is still a lack of practical therapeutic regimens to stop or slow the progression of this disease. Thus, there is urgently needed novel diagnosis tools and drugs for early diagnosis and treatment of AD. Among several AD pathological hallmarks, amyloid-β (Aβ) peptide deposition is considered a critical initiating factor in AD. In recent years, with the advantages of excellent sensitivity and high resolution, near-infrared fluorescence (NIRF) imaging has attracted the attention of many researchers to develop Aβ plaque probes. This review mainly focused on different NIRF probe design strategies for imaging Aβ species to pave the way for the future design of novel NIRF probes for early diagnosis AD.
Collapse
Affiliation(s)
- Dunyan Su
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei Diao
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jie Li
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lili Pan
- Department of Nuclear Medicine, Laboratory of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaoyang Zhang
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaoai Wu
- Department of Nuclear Medicine, Laboratory of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wuyu Mao
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-Related Molecular Network, Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610093, P. R. China
| |
Collapse
|
6
|
Trusova V, Tarabara U, Zhytniakivska O, Vus K, Gorbenko G. Fӧrster resonance energy transfer analysis of amyloid state of proteins. BBA ADVANCES 2022; 2:100059. [PMID: 37082586 PMCID: PMC10074846 DOI: 10.1016/j.bbadva.2022.100059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022] Open
Abstract
The Förster resonance energy transfer (FRET) is a well-established and versatile spectroscopic technique extensively used for exploring a variety of biomolecular interactions and processes. The present review is intended to cover the main results of our FRET studies focused on amyloid fibrils, a particular type of disease-associated protein aggregates. Based on the examples of several fibril-forming proteins including insulin, lysozyme and amyloidogenic variants of N-terminal fragment of apolipoprotein A-I, it was demonstrated that: (i) the two- and three-step FRET with the classical amyloid marker Thioflavin T as an input donor has a high amyloid-sensing potential and can be used to refine the amyloid detection assays; (ii) the intermolecular time-resolved and single-molecule pulse interleaved excitation FRET can give quantitative information on the nucleation of amyloid fibrils; (iii) FRET between the membrane fluorescent probes and protein-associated intrinsic or extrinsic fluorophores is suitable for monitoring the membrane binding of fibrillar proteins, exploring their location relative to lipid-water interface and restructuring on a lipid matrix; (iv) the FRET-based distance estimation between fibril-bound donor and acceptor fluorophores can serve as one of the verification criteria upon structural modeling of amyloid fibrils.
Collapse
|
7
|
Zhytniakivska O, Kurutos A, Shchuka M, Vus K, Tarabara U, Trusova V, Gorbenko G. Fӧrster resonance energy transfer between Thioflavin T and unsymmetrical trimethine cyanine dyes on amyloid fibril scaffold. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.139127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
8
|
Hanif S, Muhammad P, Niu Z, Ismail M, Morsch M, Zhang X, Li M, Shi B. Nanotechnology‐Based Strategies for Early Diagnosis of Central Nervous System Disorders. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Sumaira Hanif
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Pir Muhammad
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Zheng Niu
- Province's Key Lab of Brain Targeted Bionanomedicine School of Pharmacy Henan University Kaifeng Henan 475004 China
| | - Muhammad Ismail
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Marco Morsch
- Department of Biomedical Sciences Macquarie University Centre for Motor Neuron Disease Research Macquarie University NSW 2109 Australia
| | - Xiaoju Zhang
- Department of Respiratory and Critical Care Medicine Henan Provincial People's Hospital Zhengzhou Henan 450003 China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine The Third Affiliated Hospital Sun Yat-sen University Guangzhou Guangdong 510630 China
| | - Bingyang Shi
- Department of Biomedical Sciences Faculty of Medicine & Health & Human Sciences Macquarie University NSW 2109 Australia
| |
Collapse
|
9
|
Mora AK, Murudkar S, Shivran N, Mula S, Chattopadhyay S, Nath S. Monitoring the formation of insulin oligomers using a NIR emitting glucose-conjugated BODIPY dye. Int J Biol Macromol 2020; 166:1121-1130. [PMID: 33159943 DOI: 10.1016/j.ijbiomac.2020.10.267] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/17/2020] [Accepted: 10/31/2020] [Indexed: 10/23/2022]
Abstract
Protein oligomers, which are formed due to the aggregation of protein molecules under physiological stress, are neurotoxic and responsible for several neurological diseases. Early detection of protein oligomers is essential for the timely intervention in the associated diseases. Although several probes have been developed for the detection of insoluble matured protein fibrils, fluorescent probes with emission in the near infrared (NIR) region for probing protein oligomers are very rare. In the present study we have designed and synthesized a glucose-conjugated BODIPY dye with emission in the NIR spectral range. Our detailed studies show that the new probe is not only capable of detecting matured fibrils but can also probe the formation of oligomers from the native protein. The new probe shows a large increase in its emission intensity upon association with oligomers and matured fibrils. Hence, the present probe has a great potential for the in vivo imaging of protein oligomers and matured fibrils. Detailed spectroscopic properties of the new probes in molecular solvents have been performed to understand its oligomers- and fibril- sensing mechanism.
Collapse
Affiliation(s)
- Aruna K Mora
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Sushant Murudkar
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Neelam Shivran
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Soumyaditya Mula
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | | | - Sukhendu Nath
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
| |
Collapse
|
10
|
Zeng F, Li Y, Xu Y, Yang J, Liu Z, Li X, Ren L. Strategies Targeting Soluble β-Amyloid Oligomers and their Application to Early Diagnosis of Alzheimer's Disease. Curr Alzheimer Res 2020; 16:1132-1142. [PMID: 31670622 DOI: 10.2174/1567205016666191031163504] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/30/2019] [Accepted: 10/28/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Alzheimer's Disease (AD) is the most common neurodegenerative disorder, and it is still incurable. Early diagnosis and intervention are crucial for delaying the onset and progression of the disease. Mounting evidence indicates that the neurotoxic effects might be attributed to Soluble β-Amyloid Oligomers (SAβO). The SAβO are believed to be neurotoxic peptides more predominant than Aβ plaques in the early stage, and their key role in AD is self-evident. Unfortunately, identification of SAβO proves to be difficult due to their heterogeneous and transient nature. In spite of many obstacles, multiple techniques have recently been developed to target SAβO effectively. This review focuses on the recent progress in the approaches towards SAβO detection in order to shed some light on the future development of SAβO assays. METHODS Literatures were obtained from the following libraries: Web of Science, PubMed, EPO, SIPO, USPTO. Articles were critically reviewed based on their titles, abstracts, and contents. RESULTS A total of 85 papers are referenced in the review. Results are divided into three categories based on the types of detection methods: small molecule fluorescence probes, oligomer-specific antibodies and electrochemical biosensors. Finally, the improvements and challenges of these approaches applied in the early diagnosis of AD were discussed. CONCLUSION This review article covers three kinds of strategies that could be translated into clinic practice and lead to earlier diagnosis and therapeutic interventions of AD.
Collapse
Affiliation(s)
- Fantian Zeng
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 211198, China
| | - Yuyan Li
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 211198, China
| | - Yungen Xu
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 211198, China
| | - Jian Yang
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 211198, China
| | - Zhengshi Liu
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaofang Li
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 211198, China
| | - Longfei Ren
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 211198, China
| |
Collapse
|
11
|
Aliyan A, Cook NP, Martí AA. Interrogating Amyloid Aggregates using Fluorescent Probes. Chem Rev 2019; 119:11819-11856. [DOI: 10.1021/acs.chemrev.9b00404] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Amir Aliyan
- Pasargad Institute for Advanced Innovative Solutions (PIAIS), Tehran, Iran 1991633361
- Khatam University, Tehran, Iran 1991633356
| | - Nathan P. Cook
- Department of Chemistry, Williams College, Williamstown, Massachusetts 01267, United States
| | | |
Collapse
|
12
|
Gorbenko G, Trusova V, Deligeorgiev T, Gadjev N, Mizuguchi C, Saito H. Two-step FRET as a tool for probing the amyloid state of proteins. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Qin H, Gao X, Yang X, Cao W, Liu S. A label-free and signal-on electrochemiluminescence strategy for sensitive amyloid-beta assay. Biosens Bioelectron 2019; 141:111438. [PMID: 31254862 DOI: 10.1016/j.bios.2019.111438] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/10/2019] [Accepted: 06/12/2019] [Indexed: 11/29/2022]
Abstract
Development of a simple, cost-effective and sensitive biosensing strategy is highly desirable to advance the applications in Alzheimer's disease diagnosis. In this paper, we present a simple, label-free and signal-on electrochemiluminescence (ECL) aptasensor for the detection of amyloid-beta (Aβ) peptide using luminol as ECL emitter and in-situ generated reactive oxygen species (ROS) as coreactant via catalytic reaction between Cu2+-Aβ and the dissolved O2 in the presence of ascorbic acid (AA). Aβ16, the binding site of Cu2+ in the monomeric full-length Aβ, was used as a model in present study. As a result, this signal-on ECL aptasensor has exhibited favorable analytical performance for Aβ16 monomer with a linear range of 1.0 × 10-13 mol/L-1.0 × 10-8 mol/L and a limit of detection of 3.5 × 10-14 mol/L (S/N=3). Furthermore, the proposed biosensor was also able to detect the full length Aβ40 not only in the phosphate buffer saline (PBS) solution but also in human serum. The presented biosensor represents a promising, simple, turn-on and label-free diagnostic tool for blood analysis.
Collapse
Affiliation(s)
- Haixin Qin
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Xue Gao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Xiaoyan Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Wei Cao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Shufeng Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| |
Collapse
|
14
|
Lee D, Kim SM, Kim HY, Kim Y. Fluorescence Chemicals To Detect Insoluble and Soluble Amyloid-β Aggregates. ACS Chem Neurosci 2019; 10:2647-2657. [PMID: 31009195 DOI: 10.1021/acschemneuro.9b00199] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Misfolded amyloid-β (Aβ) is the key biomarker of Alzheimer's disease (AD), and discoveries of fluorescence chemicals visualizing such Aβ aggregates in the brain have made major contributions in postmortem and antemortem diagnosis of the disorder. Insoluble senile plaques of Aβ in brain tissues are commonly stained with thioflavin and congo red dyes and observed through microscopy, while those in living patient brains are detected via radioisotope-labeled fluorescence chemicals for positron emission tomography. Clinical evidence strongly supports the view that plaques are well-associated with the onset but not with the progression of AD. Plaques could accumulate while cognitive functions of at-risk individuals are still intact, and thus, another biomarker is needed to monitor neurodegeneration. Soluble Aβ oligomers are considered to have strong correlation with neuronal loss and brain atrophy as they are the most neurotoxic forms of misfolded Aβ. However, oligomer-targeting probes encounter several major difficulties in development. There is a significant structural distinction between two Aβ species-plaques are β-sheet-rich while oligomers are unordered-and it is still difficult to isolate and stabilize the oligomeric forms of Aβ. Due to these challenges, soluble oligomer-detecting imaging probes are relatively rare compared to the plaque-targeting chemical probes. This Review describes biochemical and optical characteristics of up-to-date fluorescence chemicals targeting insoluble plaques and soluble oligomers of Aβ. We also highlight the contributions of Aβ fluorescence chemicals to the clinical diagnosis of AD and technical challenges in searching for enhanced imaging probes.
Collapse
|
15
|
Atrián-Blasco E, Gonzalez P, Santoro A, Alies B, Faller P, Hureau C. Cu and Zn coordination to amyloid peptides: From fascinating chemistry to debated pathological relevance. Coord Chem Rev 2018; 375:38-55. [PMID: 30262932 DOI: 10.1016/j.ccr.2018.04.007] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Several diseases share misfolding of different peptides and proteins as a key feature for their development. This is the case of important neurodegenerative diseases such as Alzheimer's and Parkinson's diseases and type II diabetes mellitus. Even more, metal ions such as copper and zinc might play an important role upon interaction with amyloidogenic peptides and proteins, which could impact their aggregation and toxicity abilities. In this review, the different coordination modes proposed for copper and zinc with amyloid-β, α-synuclein and IAPP will be reviewed as well as their impact on the aggregation, and ROS production in the case of copper. In addition, a special focus will be given to the mutations that affect metal binding and lead to familial cases of the diseases. Different modifications of the peptides that have been observed in vivo and could be relevant for the coordination of metal ions are also described.
Collapse
Affiliation(s)
- Elena Atrián-Blasco
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4, France
- University of Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| | - Paulina Gonzalez
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Alice Santoro
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Bruno Alies
- Université de Bordeaux, ChemBioPharm INSERM U1212 CNRS UMR 5320, Bordeaux, France
| | - Peter Faller
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4, France
- University of Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| |
Collapse
|
16
|
Borghesani V, Alies B, Hureau C. Cu(II) binding to various forms of amyloid-β peptides. Are they friends or foes? Eur J Inorg Chem 2018; 2018:7-15. [PMID: 30186035 PMCID: PMC6120674 DOI: 10.1002/ejic.201700776] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Indexed: 01/25/2023]
Abstract
In the present micro-review, we describe the Cu(II) binding to several forms of amyloid-β peptides, the peptides involved in Alzheimer's disease. It has indeed been shown that in addition to the "full-length" peptide originating from the precursor protein after cleavage at position 1, several other shorter peptides do exist in large proportion and may be involved in the disease as well. Cu(II) binding to amyloid-β peptides is one of the key interactions that impact both the aggregating properties of the amyloid peptides and the Reactive Oxygen Species (ROS) production, two events linked to the etiology of the disease. Binding sites and affinity are described in correlation with Cu(II) induced ROS formation and Cu(II) altered aggregation, for amyloid peptides starting at position 1, 3, 4, 11 and for the corresponding pyroglutamate forms when they could be obtained (i.e. for peptides cleaved at positions 3 and 11). It appears that the current paradigm which points out a toxic role of the Cu(II) - amyloid-β interaction might well be shifted towards a possible protective role when the peptides considered are the N-terminally truncated ones.
Collapse
Affiliation(s)
- Valentina Borghesani
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4, France
- University of Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| | | | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4, France
- University of Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| |
Collapse
|
17
|
Kuperman M, Chernii S, Varzatskii O, Zhdanov A, Bykov A, Zhizhin K, Yarmoluk S, Kovalska V. The Discovery of the Effect of closo
-Borate on Amyloid Fibril Formation. ChemistrySelect 2017. [DOI: 10.1002/slct.201701936] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Marina Kuperman
- Institute of Molecular Biology and Genetics NASU; 150 Zabolotnogo St. 03143 Kyiv Ukraine
| | - Svitlana Chernii
- Institute of Molecular Biology and Genetics NASU; 150 Zabolotnogo St. 03143 Kyiv Ukraine
| | - Oleg Varzatskii
- Institute of General and Inorganic Chemistry NASU; 32/34 Palladin Av. 03080 Kyiv Ukraine
| | - Andrey Zhdanov
- Kumakov Institute of General and Inorganic Chemistry; 31 Leninskii Av. 119071 Moscow, the Russian Federation
| | - Alexander Bykov
- Kumakov Institute of General and Inorganic Chemistry; 31 Leninskii Av. 119071 Moscow, the Russian Federation
| | - Konstantin Zhizhin
- Kumakov Institute of General and Inorganic Chemistry; 31 Leninskii Av. 119071 Moscow, the Russian Federation
| | - Sergiy Yarmoluk
- Institute of Molecular Biology and Genetics NASU; 150 Zabolotnogo St. 03143 Kyiv Ukraine
| | - Vladyslava Kovalska
- Institute of Molecular Biology and Genetics NASU; 150 Zabolotnogo St. 03143 Kyiv Ukraine
| |
Collapse
|
18
|
Pihlasalo S, Deguchi T, Virtamo M, Jacobino J, Chary K, López-Picón FR, Brunhofer-Bolzer G, Huttunen R, Fallarero A, Vuorela P, Härmä H. Luminometric Nanoparticle-Based Assay for High Sensitivity Detection of β-Amyloid Aggregation. Anal Chem 2017; 89:2398-2404. [PMID: 28219250 DOI: 10.1021/acs.analchem.6b04266] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A nanoparticle-based assay utilizing time-resolved luminescence resonance energy transfer (TR-LRET) was developed for the detection of β-amyloid aggregation. The assay is based on the competitive adsorption of the sample and the acceptor-labeled protein to donor europium(III) polystyrene nanoparticles. The performance of the assay was demonstrated by following the fibrillization of β-amyloid peptide 1-42 (Aβ42) as a function of time and by comparing to the reference methods atomic force microscopy (AFM) and thioflavin T (ThT) assay. The fibrillization leads to reduced adsorption of Aβ42 to the nanoparticles increasing the TR-LRET signal. The investigated methods detected fibril formation with equal sensitivities. Eight potential fibrillization inhibitor compounds reported in the literature were tested and the results obtained with each method were compared. It was shown with AFM imaging that the inhibition of fibril formation was not complete with any of the compounds. The developed TR-LRET nanoparticle assay gave corresponding results with the AFM imaging. However, the ThT assay led to contradictory results, as low fluorescence signal was measured in the presence of all tested compounds suggesting inhibition of fibrillization. Our results suggest that the developed TR-LRET nanoparticle assay can be exploited for screening of potential β-amyloid aggregation inhibitors, whereas some of the tested compounds may be measured as false positive inhibitors with the much-utilized ThT assay.
Collapse
Affiliation(s)
- Sari Pihlasalo
- Laboratory of Materials Chemistry and Chemical Analysis, Department of Chemistry, University of Turku , Vatselankatu 2, FI-20500 Turku, Finland.,Laboratory of Biophysics, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku , Tykistökatu 6A, FI-20520 Turku, Finland
| | - Takahiro Deguchi
- Laboratory of Biophysics, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku , Tykistökatu 6A, FI-20520 Turku, Finland
| | - Maria Virtamo
- Laboratory of Biophysics, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku , Tykistökatu 6A, FI-20520 Turku, Finland
| | - Jenna Jacobino
- Laboratory of Biophysics, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku , Tykistökatu 6A, FI-20520 Turku, Finland
| | - Karthik Chary
- Laboratory of Biophysics, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku , Tykistökatu 6A, FI-20520 Turku, Finland
| | - Francisco R López-Picón
- PET Preclinical Imaging Laboratory, Turku PET Centre, University of Turku , Itäinen Pitkäkatu 4B, FI-20520 Turku, Finland
| | - Gerda Brunhofer-Bolzer
- Department of Medicinal Chemistry, University of Vienna , Althanstrasse 14, A-1090 Vienna, Austria
| | - Roope Huttunen
- Laboratory of Biophysics, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku , Tykistökatu 6A, FI-20520 Turku, Finland
| | - Adyary Fallarero
- Pharmaceutical Design and Discovery Group (PharmDD), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki , Viikinkaari 5E, FI-00014 Helsinki, Finland
| | - Pia Vuorela
- Pharmaceutical Design and Discovery Group (PharmDD), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki , Viikinkaari 5E, FI-00014 Helsinki, Finland
| | - Harri Härmä
- Laboratory of Materials Chemistry and Chemical Analysis, Department of Chemistry, University of Turku , Vatselankatu 2, FI-20500 Turku, Finland.,Laboratory of Biophysics, Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku , Tykistökatu 6A, FI-20520 Turku, Finland
| |
Collapse
|
19
|
Chi H, Keiderling TA. Structural Rearrangement from Oligomer to Fibril Detected with FRET in a Designed Amphiphilic Peptide. Chembiochem 2016; 18:195-205. [DOI: 10.1002/cbic.201600436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Heng Chi
- Department of Chemistry (M/C 111); University of Illinois at Chicago; 845 W. Taylor Street Chicago IL 60607 USA
- Department of Pharmacy; Jiangsu Food and Pharmaceutical Science College; 4 E. Meicheng Rd. Huai'an Jiangsu Province 223005 China
| | - Timothy A. Keiderling
- Department of Chemistry (M/C 111); University of Illinois at Chicago; 845 W. Taylor Street Chicago IL 60607 USA
| |
Collapse
|
20
|
Rajasekhar K, Narayanaswamy N, Murugan NA, Kuang G, Ågren H, Govindaraju T. A High Affinity Red Fluorescence and Colorimetric Probe for Amyloid β Aggregates. Sci Rep 2016; 6:23668. [PMID: 27032526 PMCID: PMC4817056 DOI: 10.1038/srep23668] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 03/07/2016] [Indexed: 01/28/2023] Open
Abstract
A major challenge in the Alzheimer's disease (AD) is its timely diagnosis. Amyloid β (Aβ) aggregates have been proposed as the most viable biomarker for the diagnosis of AD. Here, we demonstrate hemicyanine-based benzothiazole-coumarin (TC) as a potential probe for the detection of highly toxic Aβ42 aggregates through switch-on, enhanced (~30 fold) red fluorescence (Emax = 654 nm) and characteristic colorimetric (light red to purple) optical outputs. Interestingly, TC exhibits selectivity towards Aβ42 fibrils compared to other abnormal protein aggregates. TC probe show nanomolar binding affinity (Ka = 1.72 × 10(7) M(-1)) towards Aβ42 aggregates and also displace ThT bound to Aβ42 fibrils due to its high binding affinity. The Aβ42 fibril-specific red-shift in the absorption spectra of TC responsible for the observed colorimetric optical output has been attributed to micro-environment change around the probe from hydrophilic-like to hydrophobic-like nature. The binding site, binding energy and changes in optical properties observed for TC upon interaction with Aβ42 fibrils have been further validated by molecular docking and time dependent density functional theory studies.
Collapse
Affiliation(s)
- K. Rajasekhar
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, Karnataka, India
| | - Nagarjun Narayanaswamy
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, Karnataka, India
| | - N. Arul Murugan
- Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Guanglin Kuang
- Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Hans Ågren
- Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - T. Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, Karnataka, India
| |
Collapse
|
21
|
Li YY, Jiang XQ, Zhang M, Shi G. A visual and reversible assay for temperature using thioflavin T-doped lanthanide/nucleotide coordination polymers. Analyst 2016; 141:2347-50. [PMID: 27010102 DOI: 10.1039/c6an00274a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we prepared a type of thioflavin T (ThT)-doped lanthanide/nucleotide coordination polymer by the self-assembly of ThT, europium ions (Eu(3+)) and nucleotides (guanosine monophosphate, GMP) in aqueous solution (i.e. ThT/Eu/GMP). The Eu/GMP coordination polymers show excellent adaptive inclusion properties for ThT in a convenient one-step approach, which can readily enhance the fluorescence of ThT via the restricted effect. Moreover, the as-prepared hydrophilic ThT/Eu/GMP coordination polymers have the capability to act as a temperature-sensitive, visual and reversible sensor in aqueous solution under the irradiation of visible light. Our proposed design is cost-effective and simple to prepare without chemical modification or fluorescence labeling.
Collapse
Affiliation(s)
- Yan-Yun Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China.
| | | | | | | |
Collapse
|
22
|
Zhou Y, Liu L, Hao Y, Xu M. Detection of Aβ Monomers and Oligomers: Early Diagnosis of Alzheimer's Disease. Chem Asian J 2016; 11:805-17. [DOI: 10.1002/asia.201501355] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 12/27/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Yanli Zhou
- Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry; College of Chemistry and Chemical Engineering; Shangqiu Normal University; Shangqiu 476000 P. R. China
| | - Lantao Liu
- Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry; College of Chemistry and Chemical Engineering; Shangqiu Normal University; Shangqiu 476000 P. R. China
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 P. R. China
| | - Yuanqiang Hao
- Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry; College of Chemistry and Chemical Engineering; Shangqiu Normal University; Shangqiu 476000 P. R. China
| | - Maotian Xu
- Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry; College of Chemistry and Chemical Engineering; Shangqiu Normal University; Shangqiu 476000 P. R. China
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 P. R. China
| |
Collapse
|
23
|
Yi X, Feng C, Hu S, Li H, Wang J. Surface plasmon resonance biosensors for simultaneous monitoring of amyloid-beta oligomers and fibrils and screening of select modulators. Analyst 2015; 141:331-6. [PMID: 26613550 DOI: 10.1039/c5an01864a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Oligomeric amyloid-beta (Aβ) peptides are considered as the most toxic species in Alzheimer's disease (AD). Monitoring of the Aβ aggregation profiles is critical for elucidating the oligomer toxicity and may serve as a therapeutic target for AD. By immobilizing the capture antibodies of A11 and OC that are specific to the oligomers and fibrils, respectively, in separate fluidic channels, a novel surface plasmon resonance (SPR) biosensor was designed for monitoring the oligomeric and fibrillar species of Aβ(1-42) simultaneously. The influence of curcumin, Cu(2+) and methylene blue on the amount of toxic oligomers and fibrils was evaluated. The half maximal inhibitory concentration (IC50) of curcumin and methylene blue was determined. The formation of Aβ fibrils was also validated by the thioflavin T (ThT) fluorescence assay. The results demonstrate the utility of SPR as an analytical tool for rapid and comprehensive monitoring of Aβ aggregation and screening of Aβ modulators.
Collapse
Affiliation(s)
- Xinyao Yi
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, P. R. China 410083.
| | | | | | | | | |
Collapse
|
24
|
Younan ND, Viles JH. A Comparison of Three Fluorophores for the Detection of Amyloid Fibers and Prefibrillar Oligomeric Assemblies. ThT (Thioflavin T); ANS (1-Anilinonaphthalene-8-sulfonic Acid); and bisANS (4,4′-Dianilino-1,1′-binaphthyl-5,5′-disulfonic Acid). Biochemistry 2015; 54:4297-306. [DOI: 10.1021/acs.biochem.5b00309] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nadine D. Younan
- School
of Biological and
Chemical Sciences, Queen Mary, University of London, Mile End Road, London E1 4NS, U.K
| | - John H. Viles
- School
of Biological and
Chemical Sciences, Queen Mary, University of London, Mile End Road, London E1 4NS, U.K
| |
Collapse
|
25
|
Li YY, Zhang M, Lu LF, Zhu A, Xia F, Zhou T, Shi G. Ratiometric fluorescence detection of silver ions using thioflavin T-based organic/inorganic hybrid supraparticles. Analyst 2015. [DOI: 10.1039/c5an01146a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel ratiometric fluorescent probe for detecting silver ions was developed using thioflavin T-based functional organic/inorganic hybrid supraparticles.
Collapse
Affiliation(s)
- Yan-Yun Li
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Min Zhang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Ling-Fei Lu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Anwei Zhu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Fei Xia
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Tianshu Zhou
- School of Ecological and Environmental Sciences
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- P. R. China
| |
Collapse
|