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Song Q, Li J, Li T, Li HW. Nanomaterials that Aid in the Diagnosis and Treatment of Alzheimer's Disease, Resolving Blood-Brain Barrier Crossing Ability. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403473. [PMID: 39101248 DOI: 10.1002/advs.202403473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/04/2024] [Indexed: 08/06/2024]
Abstract
As a form of dementia, Alzheimer's disease (AD) suffers from no efficacious cure, yet AD treatment is still imperative, as it ameliorates the symptoms or prevents it from deteriorating or maintains the current status to the longest extent. The human brain is the most sensitive and complex organ in the body, which is protected by the blood-brain barrier (BBB). This yet induces the difficulty in curing AD as the drugs or nanomaterials that are much inhibited from reaching the lesion site. Thus, BBB crossing capability of drug delivery system remains a significant challenge in the development of neurological therapeutics. Fortunately, nano-enabled delivery systems possess promising potential to achieve multifunctional diagnostics/therapeutics against various targets of AD owing to their intriguing advantages of nanocarriers, including easy multifunctionalization on surfaces, high surface-to-volume ratio with large payloads, and potential ability to cross the BBB, making them capable of conquering the limitations of conventional drug candidates. This review, which focuses on the BBB crossing ability of the multifunctional nanomaterials in AD diagnosis and treatment, will provide an insightful vision that is conducive to the development of AD-related nanomaterials.
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Affiliation(s)
- Qingting Song
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
| | - Junyou Li
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
| | - Ting Li
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
| | - Hung-Wing Li
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
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2
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Tajahmadi S, Molavi H, Ahmadijokani F, Shamloo A, Shojaei A, Sharifzadeh M, Rezakazemi M, Fatehizadeh A, Aminabhavi TM, Arjmand M. Metal-organic frameworks: A promising option for the diagnosis and treatment of Alzheimer's disease. J Control Release 2023; 353:1-29. [PMID: 36343762 DOI: 10.1016/j.jconrel.2022.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/22/2022]
Abstract
Beta-amyloid (Aβ) peptide is one of the main characteristic biomarkers of Alzheimer's disease (AD). Previous clinical investigations have proposed that unusual concentrations of this biomarker in cerebrospinal fluid, blood, and brain tissue are closely associated with the AD progression. Therefore, the critical point of early diagnosis, prevention, and treatment of AD is to monitor the levels of Aβ. In view of the potential of metal-organic frameworks (MOFs) for diagnosing and treating the AD, much attention has been focused in recent years. This review discusses the latest advances in the applications of MOFs for the early diagnosis of AD via fluorescence and electrochemiluminescence (ECL) detection of AD biomarkers, fluorescence detection of the main metal ions in the brain (Zn2+, Cu2+, Mn2+, Fe3+, and Al3+) in addition to magnetic resonance imaging (MRI) of the Aβ plaques. The current challenges and future strategies for translating the in vitro applications of MOFs into in vivo diagnosis of the AD are discussed.
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Affiliation(s)
- Shima Tajahmadi
- Institute for Nanoscience and Nanotechnology (INST), Sharif University of Technology, Tehran, Iran
| | - Hossein Molavi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran; Department of Chemistry, Institute for Advanced Studies in Basic Science (IASBS), Gava Zang, Zanjan 45137-66731, Iran
| | - Farhad Ahmadijokani
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
| | - Amir Shamloo
- Institute for Nanoscience and Nanotechnology (INST), Sharif University of Technology, Tehran, Iran; Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran; Stem Cell and Regenerative Medicine Institute, Sharif University of Technology, Tehran 11155-9161, Iran.
| | - Akbar Shojaei
- Institute for Nanoscience and Nanotechnology (INST), Sharif University of Technology, Tehran, Iran; Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad Sharifzadeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mashallah Rezakazemi
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Iran
| | - Ali Fatehizadeh
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Tejraj M Aminabhavi
- School of Advanced Sciences, KLE Technological University, Hubballi, Karnataka 580 031, India; School of Engineering, UPES, Bidholi, Dehradun, Uttarakhand 248 007, India.
| | - Mohammad Arjmand
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada.
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Mann G, Chauhan K, Kumar V, Daksh S, Kumar N, Thirumal M, Datta A. Bio-Evaluation of 99mTc-Labeled Homodimeric Chalcone Derivative as Amyloid-β-Targeting Probe. Front Med (Lausanne) 2022; 9:813465. [PMID: 35783620 PMCID: PMC9249127 DOI: 10.3389/fmed.2022.813465] [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: 11/11/2021] [Accepted: 05/24/2022] [Indexed: 11/19/2022] Open
Abstract
Chalcone derivatives have been successfully utilized for a range of biological applications and can cross the blood–brain barrier easily. β-amyloid-specific bis-chalcone derivative, 6,9-bis(carboxymethyl)-14-(4-[(E)-3-(4-(dimethylamino)phenyl)acryloyl]phenoxy)-3-(2-[(2-(4-[(E)-3-(4-(dimethylamino)phenyl)acryloyl]phenoxy)ethyl)amino]-2-oxoethyl)-11-oxo-3,6,9,12-tetraazatetradecanoic acid, DT(Ch)2, was analyzed using molecular modeling to explain the binding modes of the ligand with amyloid fibril and monomer followed by 99mTc-complexation in 95% yield and 98.7% efficiency. High-binding specificity of the radiocomplex was established following in vitro evaluation against 100-fold excess of DT(Ch)2. 99mTc–DT(Ch)2 exhibited <3% trans-complexation in human serum after 24 h, indicating high stability. A fast clearance rate in pharmacokinetics studies displayed a biphasic pattern with t1/2(F) = 30 min ± 0.09 and t1/2(S) = 4 h 20 min ± 0.06. In vivo single-photon emission computed tomography (SPECT) imaging in rabbits reiterated the pharmacokinetics data with initially high brain uptake followed by rapid washout. Biodistribution studies confirmed the initial brain uptake as 1.16 ± 0.02% ID/g after 2 min and the brain2min/brain30min ratio was 3.74. Radioactivity distribution in the brain was >40% in the cingulate cortex followed by >25% in the hippocampus, a distribution pattern aligned to Alzheimer’s affected brain regions. Radiocomplex also displayed rapid plasma clearance followed by hepatobolic and renal modes of excretion.
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Affiliation(s)
- Garima Mann
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
- Department of Chemistry, University of Delhi, New Delhi, India
| | - Kanchan Chauhan
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
| | - Vikas Kumar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
| | - Shivani Daksh
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
| | - Nikhil Kumar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
| | - M. Thirumal
- Department of Chemistry, University of Delhi, New Delhi, India
| | - Anupama Datta
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
- *Correspondence: Anupama Datta, ;
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Sanna E, Rodrigues M, Fagan SG, Chisholm TS, Kulenkampff K, Klenerman D, Spillantini MG, Aigbirhio FI, Hunter CA. Mapping the binding site topology of amyloid protein aggregates using multivalent ligands. Chem Sci 2021; 12:8892-8899. [PMID: 34257890 PMCID: PMC8246084 DOI: 10.1039/d1sc01263k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/19/2021] [Indexed: 11/21/2022] Open
Abstract
A key process in the development of neurodegenerative diseases such as Alzheimer's and Parkinson's diseases is the aggregation of proteins to produce fibrillary aggregates with a cross β-sheet structure, amyloid. The development of reagents that can bind these aggregates with high affinity and selectivity has potential for early disease diagnosis. By linking two benzothiazole aniline (BTA) head groups with different length polyethylene glycol (PEG) spacers, fluorescent probes that bind amyloid fibrils with low nanomolar affinity have been obtained. Dissociation constants measured for interaction with Aβ, α-synuclein and tau fibrils show that the length of the linker determines binding affinity and selectivity. These compounds were successfully used to image α-synuclein aggregates in vitro and in the post-mortem brain tissue of patients with Parkinson's disease. The results demonstrate that multivalent ligands offer a powerful approach to obtain high affinity, selective reagents to bind the fibrillary aggregates that form in neurodegenerative disease. Multivalent ligands offer a powerful approach to obtain high affinity reagents to bind the aggregates that form in neurodegenerative disease. Selectivity for different proteins was achieved by using different linkers to connect the head groups.![]()
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Affiliation(s)
- Elena Sanna
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Margarida Rodrigues
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Steven G Fagan
- Department of Clinical Neurosciences, Clifford Allbutt Building, University of Cambridge Cambridge CB2 0AH UK
| | - Timothy S Chisholm
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Klara Kulenkampff
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - David Klenerman
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Maria Grazia Spillantini
- Department of Clinical Neurosciences, Clifford Allbutt Building, University of Cambridge Cambridge CB2 0AH UK
| | - Franklin I Aigbirhio
- Department of Clinical Neuroscience, Wolfson Brain Imaging Centre, University of Cambridge CB2 0QQ UK
| | - Christopher A Hunter
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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Lengacher R, Alberto R. Bioorganometallics: 99mTc cytectrenes, syntheses and applications in nuclear medicine. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Wang X, Wang C, Chan HN, Ashok I, Krishnamoorthi SK, Li M, Li HW, Wong MS. Amyloid-β oligomer targeted theranostic probes for in vivo NIR imaging and inhibition of self-aggregation and amyloid-β induced ROS generation. Talanta 2021; 224:121830. [DOI: 10.1016/j.talanta.2020.121830] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/20/2020] [Accepted: 10/28/2020] [Indexed: 12/15/2022]
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7
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Design, synthesis and evaluation of novel dimethylamino chalcone-O-alkylamines derivatives as potential multifunctional agents against Alzheimer's disease. Eur J Med Chem 2021; 216:113310. [PMID: 33667847 DOI: 10.1016/j.ejmech.2021.113310] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 02/05/2021] [Accepted: 02/18/2021] [Indexed: 02/07/2023]
Abstract
A novel series of dimethylamino chalcone-O-alkylamines derivatives was designed and synthesized as multifunctional agents for the treatment of AD. All the target compounds exhibited significant abilities to inhibit and disaggregate Aβ aggregation, and acted as potential selective AChE inhibitors, biometal chelators and selective MAO-B inhibitors. Among these compounds, compound TM-6 showed the greatest inhibitory activity against self-induced Aβ aggregation (IC50 = 0.88 μM) and well disaggregation ability toward self-induced Aβ aggregation (95.1%, 25 μM), the TEM images, molecular docking study and molecular dynamics simulations provided reasonable explanation for its high efficiency, and it was also found to be a remarkable antioxidant (ORAC-FL values of 2.1eq.), the best AChE inhibitor (IC50 = 0.13 μM) and MAO-B inhibitor (IC50 = 1.0 μM), as well as a good neuroprotectant. UV-visual spectrometry and ThT fluorescence assay revealed that compound TM-6 was not only a good biometal chelator by inhibiting Cu2+-induced Aβ aggregation (95.3%, 25 μM) but also could disassemble the well-structured Aβ fibrils (88.1%, 25 μM). Further, TM-6 could cross the blood-brain barrier (BBB) in vitro. More importantly, compound TM-6 did not show any acute toxicity in mice at doses of up to 1000 mg/kg and improved scopolamine-induced memory impairment. Taken together, these data indicated that TM-6, an excellent balanced multifunctional inhibitor, was a potential lead compound for the treatment of AD.
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8
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Krasnovskaya O, Spector D, Zlobin A, Pavlov K, Gorelkin P, Erofeev A, Beloglazkina E, Majouga A. Metals in Imaging of Alzheimer's Disease. Int J Mol Sci 2020; 21:E9190. [PMID: 33276505 PMCID: PMC7730413 DOI: 10.3390/ijms21239190] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/25/2020] [Accepted: 11/28/2020] [Indexed: 12/23/2022] Open
Abstract
One of the hallmarks of Alzheimer's disease (AD) is the deposition of amyloid plaques in the brain parenchyma, which occurs 7-15 years before the onset of cognitive symptoms of the pathology. Timely diagnostics of amyloid formations allows identifying AD at an early stage and initiating inhibitor therapy, delaying the progression of the disease. However, clinically used radiopharmaceuticals based on 11C and 18F are synchrotron-dependent and short-lived. The design of new metal-containing radiopharmaceuticals for AD visualization is of interest. The development of coordination compounds capable of effectively crossing the blood-brain barrier (BBB) requires careful selection of a ligand moiety, a metal chelating scaffold, and a metal cation, defining the method of supposed Aβ visualization. In this review, we have summarized metal-containing drugs for positron emission tomography (PET), magnetic resonance imaging (MRI), and single-photon emission computed tomography (SPECT) imaging of Alzheimer's disease. The obtained data allow assessing the structure-ability to cross the BBB ratio.
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Affiliation(s)
- Olga Krasnovskaya
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy Prospect 4, 101000 Moscow, Russia
| | - Daniil Spector
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy Prospect 4, 101000 Moscow, Russia
| | - Alexander Zlobin
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
| | - Kirill Pavlov
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
| | - Peter Gorelkin
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy Prospect 4, 101000 Moscow, Russia
| | - Alexander Erofeev
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy Prospect 4, 101000 Moscow, Russia
| | - Elena Beloglazkina
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
| | - Alexander Majouga
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1,3, 119991 Moscow, Russia; (A.Z.); (K.P.); (P.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy Prospect 4, 101000 Moscow, Russia
- Mendeleev University of Chemical Technology of Russia, Miusskaya Ploshchad’ 9, 125047 Moscow, Russia
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Jokar S, Behnammanesh H, Erfani M, Sharifzadeh M, Gholami M, Sabzevari O, Amini M, Geramifar P, Hajiramezanali M, Beiki D. Synthesis, biological evaluation and preclinical study of a novel 99mTc-peptide: A targeting probe of amyloid-β plaques as a possible diagnostic agent for Alzheimer's disease. Bioorg Chem 2020; 99:103857. [PMID: 32330736 DOI: 10.1016/j.bioorg.2020.103857] [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: 11/10/2019] [Revised: 04/12/2020] [Accepted: 04/14/2020] [Indexed: 01/01/2023]
Abstract
With respect to the main role of amyloid-β (Aβ) plaques as one of the pathological hallmarks in the brain of Alzheimer's patients, the development of new imaging probes for targeted detection of Aβ plaques has attracted considerable interests. In this study, a novel cyclopentadienyl tricarbonyl Technetium-99 m (99mTc) agent with peptide scaffold, 99mTc-Cp-GABA-D-(FPLIAIMA)-NH2, for binding to the Aβ plaques was designed and successfully synthesized using the Fmoc solid-phase peptide synthesis method. This radiopeptide revealed a good affinity for Aβ42 aggregations (Kd = 20 µM) in binding affinity study and this result was confirmed by binding to Aβ plaques in brain sections of human Alzheimer's disease (AD) and rat models using in vitro autoradiography, fluorescent staining, and planar scintigraphy. Biodistribution studies of radiopeptide in AD and normal rats demonstrated a moderate initial brain uptake about 0.38 and 0.35% (ID/g) 2 min post-injection, respectively. Whereas, AD rats showed a notable retention time in the brain (0.23% ID/g at 30 min) in comparison with fast clearance in normal rat brains. Normal rats following treatment with cyclosporine A as a p-glycoprotein inhibitor showed a significant increase in the radiopeptide brain accumulation compared to non-treated ones. There was a good correlation between data gathered from single-photon emission computed tomography/computed tomography (SPECT/CT) imaging and biodistribution studies. Therefore, these findings showed that this novel radiopeptide could be a potential SPECT imaging agent for early detection of Aβ plaques in the brain of patients with AD.
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Affiliation(s)
- Safura Jokar
- Department of Nuclear Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Behnammanesh
- Department of Nuclear Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Erfani
- Radiation Application Research School, Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran.
| | - Mohammad Sharifzadeh
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran, Iran; Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Gholami
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran, Iran; Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Omid Sabzevari
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran, Iran; Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Amini
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Drug Design and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parham Geramifar
- Research Center for Nuclear Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maliheh Hajiramezanali
- Department of Nuclear Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Davood Beiki
- Research Center for Nuclear Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Thiosemicarbazonate complexes with affinity for amyloid-β fibers: synthesis, characterization and biological studies. Future Med Chem 2019; 11:2527-2546. [DOI: 10.4155/fmc-2019-0013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: Obtain radioimages of amyloid-β fibers using 99mTc-complexes. Methodology: Tridentate thiosemicarbazone and thiocarbonohydrazone ligands containing fragments (stilbene, azobenzene, benzothiazole or benzoxazole) with affinity for amyloid-ß fibers and its Re(I) complexes have been prepared. The molecular structures of several ligands and complexes were determined by x-ray diffraction. Binding affinity studies toward Aß1-42 fibers were performed for the ligands and Re(I) complexes. The ability of formation of some 99mTc(I) complexes, their biodistribution and in vivo stability have been established. Results & conclusion: Complexes of stilbene and benzothiazole thiosemicarbazonates show similar affinity for amyloid-β fibers to the free ligand. These 99mTc complexes present a reasonable in vivo stability and a low capability to cross the blood–brain barrier although not sufficient to brain amyloid imaging.
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Molavipordanjani S, Emami S, Hosseinimehr SJ. 99mTc-labeled Small Molecules for Diagnosis of Alzheimer’s Disease: Past, Recent and Future Perspectives. Curr Med Chem 2019; 26:2166-2189. [DOI: 10.2174/0929867325666180410104023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 01/21/2018] [Accepted: 04/05/2018] [Indexed: 01/22/2023]
Abstract
Background:
Alzheimer’s disease (AD) is an age-related progressive neurodegenerative disease.
Its prominent hallmarks are extracellular deposition of β-amyloids (amyloid plaques), intracellular
neurofibrillary tangles (NTFs), neurodegeneration and finally loss of cognitive function. Hence, AD diagnosis
in the early stage and monitoring of the disease are of great importance.
Methods:
In this review article, we have reviewed recent efforts for design, synthesis and evaluation of
99mTc labeled small molecule for AD imaging purposes.
Results:
These small molecules include derivatives of Congo red, benzothiazole, benzofuran, benzoxazole,
naphthalene, biphenyl, chalcone, flavone, aurone, stilbene, curcumin, dibenzylideneacetone,
quinoxaline, etc. The different aspects of 99mTc-labeled small molecules including chemical structure,
their affinity toward amyloid plaques, BBB permeation and in vivo/vitro stability will be discussed.
Conclusion:
The findings of this review confirm the importance of 99mTc-labeled small molecules for AD
imaging. Future studies based on the pharmacophore of these designed compounds are needed for improvement
of these molecules for clinical application.
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Affiliation(s)
- Sajjad Molavipordanjani
- Department of Radiopharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeed Emami
- Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Jalal Hosseinimehr
- Department of Radiopharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
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12
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De P, Bhattacharyya D, Roy K. Application of multilayered strategy for variable selection in QSAR modeling of PET and SPECT imaging agents as diagnostic agents for Alzheimer’s disease. Struct Chem 2019. [DOI: 10.1007/s11224-019-01376-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Yang F, Wang K, Zhou K, Dai B, Dai J, Liang Y, Cui M. Synthesis and bioevaluation of technetium-99 m / rhenium labeled phenylquinoxaline derivatives as Tau imaging probes. Eur J Med Chem 2019; 177:291-301. [PMID: 31158745 DOI: 10.1016/j.ejmech.2019.05.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/09/2019] [Accepted: 05/23/2019] [Indexed: 10/26/2022]
Abstract
Based on our previous research on the fluorinated phenylquinoxaline scaffold, in this study, different positions of N,N-dimethyl amino group, and alkyl linkers with various lengths were introduced into this scaffold to regulate their lipophilicity and binding affinity to Tau. Four novel 99mTc/Re complexes with diethyl iminodiacetate chelator were synthesized and evaluated as Tau imaging tracers in the brain of Alzheimer's disease. Their specific binding to neurofibrillary tangles was verified by in vitro fluorescence staining and further confirmed by the results of immunofluorescence staining on the same brain sections from AD patient and Tg-tau mice. From in vitro binding assay using recombinant Tau aggregates, complex 4.2 with 6-N(CH3)2 and longer carbon chain (n = 4) displayed the highest affinity (Kd = 59.95 nM). [99mTc]4.2 was achieved by the ligand exchange reaction between dicarboxylic precursor and [99mTc(CO)3(H2O)3]+ intermediate with radiochemical yield over 45%. Ex vivo biodistribution studies on normal ICR mice revealed that [99mTc]4.2 exhibited moderate initial brain uptake (0.61% ID/g) and more structure optimizations are still required to improve the blood-brain barrier permeability.
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Affiliation(s)
- Fan Yang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Kan Wang
- Hubei Key Laboratory of Cell Homeostasis, State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Kaixiang Zhou
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Bin Dai
- Hubei Key Laboratory of Cell Homeostasis, State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Jiapei Dai
- Wuhan Institute for Neuroscience and Neuroengineering, South-Central University for Nationalities, Wuhan, 430074, China
| | - Yi Liang
- Hubei Key Laboratory of Cell Homeostasis, State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China.
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14
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Peng C, Wang X, Li Y, Li HW, Wong MS. Versatile fluorescent probes for near-infrared imaging of amyloid-β species in Alzheimer's disease mouse model. J Mater Chem B 2019; 7:1986-1995. [PMID: 32254802 DOI: 10.1039/c9tb00161a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The self-aggregation of amyloid-β peptides into soluble oligomers and then into insoluble fibril-associated amyloid plaques is a key event in the progression of Alzheimer's disease (AD). The imaging of Aβ aggregates in the brain is a powerful and practical approach for the diagnosis and progression monitoring of AD and the evaluation of the effectiveness of novel therapies for this devastating disease. Near-infrared (NIR) imaging is a sensitive and noninvasive method to detect and visualize Aβ aggregates in vivo because of its good penetration depth and low autofluorescence of biological substances. In this article, we comprehensively reviewed the recent progresses made in the development of molecular NIR fluorescent probes for Aβ detection and imaging in vivo with a particular emphasis on the design strategies, optical characteristics, Aβ-binding abilities and potential applications in AD mouse models.
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Affiliation(s)
- Chao Peng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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15
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Yang C, Hu R, Li Q, Li S, Xiang J, Guo X, Wang S, Zeng Y, Li Y, Yang G. Visualization of Parallel G-Quadruplexes in Cells with a Series of New Developed Bis(4-aminobenzylidene)acetone Derivatives. ACS OMEGA 2018; 3:10487-10492. [PMID: 30320244 PMCID: PMC6173478 DOI: 10.1021/acsomega.8b01190] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
G-quadruplexes (G4s) are unique four-stranded nucleic acid secondary structures formed by G-rich nucleic acid sequences which are prevalent in gene promoter and telomere regions and deemed to play essential roles in many biological and pathological processes. Although attentions to G4s have been paid for nearly 40 years, G4 selectivity and its topology discrimination in cells is still pending. Small fluorescence molecules are emerging as a versatile tool of interrogation of cellular features in vivo. Herein, a new class of bis(4-aminobenzylidene)acetone derivatives GD1, GD2, and GD3 with excellent environment-sensitive emission properties were developed and used for fluorescent detection of G4s. Among them, compound GD3 owning four methoxy groups presented preferable capability of lighting up parallel G4s with a strong red-emission enhancement. The photophysical property of GD3 was systematically investigated to elucidate the turn-on mechanism of GD3 toward parallel G4 structures, which reveal that the binding-induced polarity change of the microenvironment around GD3 together with the fluorophore conformational confinement affected the molecular intramolecular charge-transfer state and resulted the enhanced emission. G4s staining with GD3 in fixed cells was further applied, demonstrating GD3 a promising probe with the ability to visualize the distribution of G4 structures in biological processes. In general, this study provides a new potential scaffold-bis(4-aminobenzylidene)acetone-for design of G4-selective fluorescence probes.
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Affiliation(s)
- Chenlin Yang
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Hu
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qian Li
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Shuang Li
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Junfeng Xiang
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xudong Guo
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Shuangqing Wang
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yi Zeng
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Li
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoqiang Yang
- Key
Laboratory of Photochemistry, Institute of Chemistry, Key Laboratory of
Photochemical Conversion and Optoelectronic Materials, Technical Institute
of Physics and Chemistry, and State Key Laboratory for Structural Chemistry
of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
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16
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Kiritsis C, Mavroidi B, Shegani A, Palamaris L, Loudos G, Sagnou M, Pirmettis I, Papadopoulos M, Pelecanou M. 2-(4'-Aminophenyl)benzothiazole Labeled with 99mTc-Cyclopentadienyl for Imaging β-Amyloid Plaques. ACS Med Chem Lett 2017; 8:1089-1092. [PMID: 29057056 DOI: 10.1021/acsmedchemlett.7b00294] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 09/17/2017] [Indexed: 11/29/2022] Open
Abstract
The development of a 99mTc-radiotracer for imaging of β-amyloid (Aβ) plaques with single photon emission computed tomography (SPECT) is strongly anticipated to provide a low cost and broadly accessible diagnostic tool for Alzheimer's disease (AD). Within this framework, 2-(4'-aminophenyl)benzothiazole, known to display affinity and specificity for Aβ plaques, has been joined to the tricarbonyl fac-[M(CO)3]+ (M = Re(I), 99mTc(I)) core through the cyclopentadienyl moiety to yield stable, neutral, and lipophilic complexes (Re-1 and 99mTc-1, respectively). The Re-1 complex was completely characterized with spectroscopic methods and was shown to selectively stain Aβ plaques on sections of human AD brain tissue. The 99mTc-1 complex displayed satisfactory initial brain uptake (0.53% ID/g at 2 min) and in vivo stability in healthy mice, while in transgenic 5xFAD mice, models for AD, a notable retention in the brain was noted (1.94% ID/g at 90 min). The results are encouraging and contribute to the effort of developing a SPECT amyloid imaging agent.
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Affiliation(s)
| | | | | | - Lazaros Palamaris
- Department
of Medical Instruments Technology, Technological Educational Institute, 12210 Athens, Greece
| | - George Loudos
- Department
of Medical Instruments Technology, Technological Educational Institute, 12210 Athens, Greece
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17
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Chen K, Cui M. Recent progress in the development of metal complexes as β-amyloid imaging probes in the brain. MEDCHEMCOMM 2017; 8:1393-1407. [PMID: 30108850 PMCID: PMC6072098 DOI: 10.1039/c7md00064b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 05/11/2017] [Indexed: 01/28/2023]
Abstract
In this review, we have focused on the recent progress in metal complexes that are able to bind to β-amyloid (Aβ) species. We have discussed various radioactive complexes of 99mTc, 68Ga, 64Cu, 89Zr, and 111In, which were designed as Aβ imaging agents for positron emission tomography (PET) and single photon emission computed tomography (SPECT) imaging, non-radioactive Re and Ru complexes as Aβ sensors using luminescence methods, and Gd3+ complexes as contrast agents for magnetic resonance imaging (MRI).
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Affiliation(s)
- Kaihua Chen
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China . ; ; Tel: +86 10 58808891
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China . ; ; Tel: +86 10 58808891
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18
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Chaturvedi S, Kaul A, Hazari PP, Mishra AK. Mapping neuroreceptors with metal-labeled radiopharmaceuticals. MEDCHEMCOMM 2017; 8:855-870. [PMID: 30108802 PMCID: PMC6072260 DOI: 10.1039/c6md00610h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 02/07/2017] [Indexed: 01/27/2023]
Abstract
The growing epidemiological and economic burden of neurological diseases on society is tremendous. A correct and timely diagnosis can help in lowering the burden and improving the life quality of both the diseased person and the caretaker. Imaging of the brain (neuroimaging) using CT, MRI, and nuclear imaging methods can provide anatomical and functional information. Neuroreceptors are central to neurotransmission and neuromodulation in the CNS. In vivo imaging of receptors in the brain provides powerful tools for the functional study of the central nervous system (CNS) in normal or diseased states. Presently, PET imaging using non-metallic radiotracers dominates the imaging of neuroreceptors. Metal-based probes for SPECT and PET can be economical and logistically easier to use without compromising the information. This review focuses on the development of metallic radiotracers for (99mTc) SPECT and (68Ga) PET along with future directions based on the metallic probes developed for other imaging modalities namely MRI.
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Affiliation(s)
- S Chaturvedi
- Division of Cyclotron and Radiopharmaceutical Sciences , Institute of Nuclear Medicine and Allied Sciences , Brig. S.K. Mazumder Road , Delhi 110054 , India . ; ; ; Tel: +91 11 23095117
| | - A Kaul
- Division of Cyclotron and Radiopharmaceutical Sciences , Institute of Nuclear Medicine and Allied Sciences , Brig. S.K. Mazumder Road , Delhi 110054 , India . ; ; ; Tel: +91 11 23095117
| | - Puja P Hazari
- Division of Cyclotron and Radiopharmaceutical Sciences , Institute of Nuclear Medicine and Allied Sciences , Brig. S.K. Mazumder Road , Delhi 110054 , India . ; ; ; Tel: +91 11 23095117
| | - Anil K Mishra
- Division of Cyclotron and Radiopharmaceutical Sciences , Institute of Nuclear Medicine and Allied Sciences , Brig. S.K. Mazumder Road , Delhi 110054 , India . ; ; ; Tel: +91 11 23095117
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19
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Iikuni S, Ono M, Tanimura K, Watanabe H, Yoshimura M, Saji H. Synthesis and biological evaluation of novel technetium-99m-labeled phenylquinoxaline derivatives as single photon emission computed tomography imaging probes targeting β-amyloid plaques in Alzheimer's disease. RSC Adv 2017. [DOI: 10.1039/c6ra28395k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The development of an imaging probe targeting β-amyloid (Aβ) plaques in Alzheimer's disease labeled with technetium-99m, the most commonly used radioisotope for clinical diagnoses, has been strongly anticipated.
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Affiliation(s)
- Shimpei Iikuni
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Masahiro Ono
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Keiichi Tanimura
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Hiroyuki Watanabe
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Masashi Yoshimura
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Hideo Saji
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
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20
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2-Arylbenzothiazoles labeled with [CpRe/ 99m Tc(CO) 3 ] and evaluated as β -amyloid imaging probes. Eur J Med Chem 2016; 124:763-772. [DOI: 10.1016/j.ejmech.2016.09.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 11/24/2022]
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21
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Salerno M, Santo Domingo Porqueras D. Alzheimer's disease: The use of contrast agents for magnetic resonance imaging to detect amyloid beta peptide inside the brain. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Zhang X, Yu P, Yang Y, Hou Y, Peng C, Liang Z, Lu J, Chen B, Dai J, Liu B, Cui M. 99mTc-Labeled 2-Arylbenzothiazoles: Aβ Imaging Probes with Favorable Brain Pharmacokinetics for Single-Photon Emission Computed Tomography. Bioconjug Chem 2016; 27:2493-2504. [PMID: 27668687 DOI: 10.1021/acs.bioconjchem.6b00444] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoyang Zhang
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
| | - Pingrong Yu
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
| | - Yanping Yang
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
| | - Yaqin Hou
- Department
of Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Cheng Peng
- Department
of Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Zhigang Liang
- Department
of Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Jing Lu
- Department
of Laboratory Animal Science, School of Basic Medical Science, Capital Medical University, Beijing 100069, China
| | - Baian Chen
- Department
of Laboratory Animal Science, School of Basic Medical Science, Capital Medical University, Beijing 100069, China
| | - Jiapei Dai
- Wuhan Institute for Neuroscience and Neuroengineering, South-Central University for Nationalities, Wuhan 430074, China
| | - Boli Liu
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
| | - Mengchao Cui
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
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23
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A theranostic agent for in vivo near-infrared imaging of β-amyloid species and inhibition of β-amyloid aggregation. Biomaterials 2016; 94:84-92. [DOI: 10.1016/j.biomaterials.2016.03.047] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/22/2016] [Accepted: 03/30/2016] [Indexed: 12/16/2022]
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24
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Cui X, Zhang X, Peng C, Dai J, Liu B, Cui M. Radiolabeled pyridinyl analogues of dibenzylideneacetone as β-amyloid imaging probes. RSC Adv 2016. [DOI: 10.1039/c6ra05168e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In continuation of our investigation of the dibenzylideneacetone scaffold as Aβ imaging probes, a series of derivatives containing pyridine rings with lower lipophilicity was synthesized and evaluated.
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Affiliation(s)
- Xiaomei Cui
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Xiaoyang Zhang
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Cheng Peng
- Department of Nuclear Medicine
- Xuanwu Hospital
- Capital Medical University
- Beijing 100053
- P. R. China
| | - Jiapei Dai
- Wuhan Institute for Neuroscience and Neuroengineering
- South-Central University for Nationalities
- Wuhan 430074
- P. R. China
| | - Boli Liu
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
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25
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Preliminary Characterization and In Vivo Studies of Structurally Identical (18)F- and (125)I-Labeled Benzyloxybenzenes for PET/SPECT Imaging of β-Amyloid Plaques. Sci Rep 2015; 5:12084. [PMID: 26170205 PMCID: PMC4501006 DOI: 10.1038/srep12084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 06/01/2015] [Indexed: 11/23/2022] Open
Abstract
With the assistance of molecular docking and 3D-QSAR models established previously, structurally identical 18F- and 125I-labeled benzyloxybenzene derivatives were designed to achieve the early detection of Aβ plaques by PET/SPECT imaging. In competition binding assay, ligands 7a and 12a displayed high binding affinities to Aβ42 aggregates with Ki values of 19.5 nM and 23.9 nM, respectively. Specific plaque labeling was observed on the in vitro autoradiography of brain sections from AD patients and Tg mice. In biodistribution, [125I]7a, [18F]7a, [125I]12a and [18F]12a all exhibited high initial brain uptakes (>5% ID/g at 2 min). [125I]7a and [125I]12a cleared fast from the normal brain regions, while corresponding [18F]7a and [18F]12a showed slow washout rates. Dynamic microPET/CT and microSPECT/CT imaging data in normal ICR mice were in accordance with in vivo biodistribution results. In vivo metabolism results indicated that the different clearance profiles between the structurally identical 18F- and 125I-labeled tracers could be attributed to different biochemical characteristics of the radiometabolites. Radioiodinated benzyloxybenzene derivatives exhibited good in vivo biostability in brain. Ex vivo autoradiography further confirmed the strong in vivo Aβ labeling ability of [125I]7a. These new fluorinated and iodinated benzyloxybenzenes can develop into PET/SPECT dual imaging agents targeting Aβ plaques.
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26
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Tong H, Lou K, Wang W. Near-infrared fluorescent probes for imaging of amyloid plaques in Alzheimer׳s disease. Acta Pharm Sin B 2015; 5:25-33. [PMID: 26579421 PMCID: PMC4629210 DOI: 10.1016/j.apsb.2014.12.006] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 12/08/2014] [Accepted: 12/11/2014] [Indexed: 12/25/2022] Open
Abstract
One of the early pathological hallmarks of Alzheimer׳s disease (AD) is the deposition of amyloid-β (Aβ) plaques in the brain. There has been a tremendous interest in the development of Aβ plaques imaging probes for early diagnosis of AD in the past decades. Optical imaging, particularly near-infrared fluorescence (NIRF) imaging, has emerged as a safe, low cost, real-time, and widely available technique, providing an attractive approach for in vivo detection of Aβ plaques among many different imaging techniques. In this review, we provide a brief overview of the state-of-the-art development of NIRF Aβ probes and their in vitro and in vivo applications with special focus on design strategies and optical, binding, and brain-kinetic properties.
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Key Words
- AD, Alzheimer’s disease
- APP, amyloid peptide precursor
- Ach, acetylcholine
- Alzheimer׳s disease
- Amyloid-β plagues
- Aβ, amyloid-β
- BAP, BODIPY-based Ab imaging probe
- BBB, blood-brain barrier
- Blood-brain barrier
- Cy, cyanine dyes
- Fluorescence probe
- ICG, indocyanine green dyes
- MRI, magnetic resonance imaging
- NIR, near-infrared
- NIRF, near-infrared fluorescence
- Near-infrared fluorescence
- Optical imaging
- PET, positron emission tomography
- ROS, reactive oxygen species
- SPECT, single photon emission computed tomography
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27
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Wang X, Cui M, Jia J, Liu B. (99m)Tc-labeled-2-arylbenzoxazole derivatives as potential Aβ imaging probes for single-photon emission computed tomography. Eur J Med Chem 2014; 89:331-9. [PMID: 25462249 DOI: 10.1016/j.ejmech.2014.10.046] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 10/13/2014] [Accepted: 10/14/2014] [Indexed: 11/18/2022]
Abstract
Four neutral (99m)Tc/Re-labeled 2-arylbenzoxazole derivatives conjugated to bis (aminoethanethiol) (BAT) chelating ligand via a short propoxy spacer were synthesized and evaluated. In vitro binding assay showed that they displayed binding affinities to Aβ1-42 aggregates (Ki = 15.86-393.18 nM). In vitro autoradiography studies further confirmed the high and specific binding of [(99m)Tc]20 to β-amyloid plaques on brain sections of transgenic mice. Biodistribution study of [(99m)Tc]17-20 in normal mice displayed moderate initial brain uptake (0.96-1.55%ID/g at 2 min), and fast washed out from the brain (0.14-0.40%ID/g at 60 min), especially for [(99m)Tc]20 with a brain2min/brain60min ratio of 8.86. Taken together, these preliminary data suggested that [(99m)Tc]20 may be a potential imaging probe for detecting amyloid plaques in the brain.
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Affiliation(s)
- Xuedan Wang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China.
| | - Jianhua Jia
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
| | - Boli Liu
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
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28
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Kharissova OV, Méndez-Rojas MA, Kharisov BI, Méndez UO, Martínez PE. Metal complexes containing natural and and artificial radioactive elements and their applications. Molecules 2014; 19:10755-802. [PMID: 25061724 PMCID: PMC6272025 DOI: 10.3390/molecules190810755] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/09/2014] [Accepted: 07/11/2014] [Indexed: 12/13/2022] Open
Abstract
Recent advances (during the 2007–2014 period) in the coordination and organometallic chemistry of compounds containing natural and artificially prepared radionuclides (actinides and technetium), are reviewed. Radioactive isotopes of naturally stable elements are not included for discussion in this work. Actinide and technetium complexes with O-, N-, N,O, N,S-, P-containing ligands, as well π-organometallics are discussed from the view point of their synthesis, properties, and main applications. On the basis of their properties, several mono-, bi-, tri-, tetra- or polydentate ligands have been designed for specific recognition of some particular radionuclides, and can be used in the processes of nuclear waste remediation, i.e., recycling of nuclear fuel and the separation of actinides and fission products from waste solutions or for analytical determination of actinides in solutions; actinide metal complexes are also usefulas catalysts forcoupling gaseous carbon monoxide, as well as antimicrobial and anti-fungi agents due to their biological activity. Radioactive labeling based on the short-lived metastable nuclide technetium-99m (99mTc) for biomedical use as heart, lung, kidney, bone, brain, liver or cancer imaging agents is also discussed. Finally, the promising applications of technetium labeling of nanomaterials, with potential applications as drug transport and delivery vehicles, radiotherapeutic agents or radiotracers for monitoring metabolic pathways, are also described.
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Affiliation(s)
- Oxana V Kharissova
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
| | - Miguel A Méndez-Rojas
- Departamento de Ciencias Químico-Biológicas, Universidad de las Américas Puebla, Sta. Catarina Mártir, Cholula, Puebla. C.P. 72810, Mexico
| | - Boris I Kharisov
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico.
| | - Ubaldo Ortiz Méndez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
| | - Perla Elizondo Martínez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
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29
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Yang Y, Cui M, Zhang X, Dai J, Zhang Z, Lin C, Guo Y, Liu B. Radioiodinated benzyloxybenzene derivatives: a class of flexible ligands target to β-amyloid plaques in Alzheimer's brains. J Med Chem 2014; 57:6030-42. [PMID: 24936678 DOI: 10.1021/jm5004396] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Benzyloxybenzene, as a novel flexible scaffold without rigid planarity, was synthesized and evaluated as ligand toward Aβ plaques. The binding site calculated for these flexible ligands was the hydrophobic Val18_Phe20 channel on the flat surface of Aβ fiber. Structure-activity relationship analysis generated a common trend that binding affinities declined significantly from para-substituted ligands to ortho-substituted ones, which was also quantitatively illustrated by 3D-QSAR modeling. Autoradiography in vitro further confirmed the high affinities of radioiodinated ligands [125I]4, [125I]24, and [125I]22 (Ki=24.3, 49.4, and 17.6 nM, respectively). In biodistribution, [125I]4 exhibited high initial uptake and rapid washout property in the brain with brain2 min/brain60 min ratio of 16.3. The excellent in vitro and in vivo biostability of [125I]4 enhanced its potential for clinical application in SPECT imaging of Aβ plaques. This approach could also allow the design of a new generation of Aβ targeting ligands without rigid and planar framework.
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Affiliation(s)
- Yanping Yang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
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30
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Hayne DJ, Lim S, Donnelly PS. Metal complexes designed to bind to amyloid-β for the diagnosis and treatment of Alzheimer's disease. Chem Soc Rev 2014; 43:6701-15. [PMID: 24671229 DOI: 10.1039/c4cs00026a] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Alzheimer's disease is the most common form of age-related neurodegenerative dementia. The disease is characterised by the presence of plaques in the cerebral cortex. The major constituent of these plaques is aggregated amyloid-β peptide. This review focuses on the molecular aspects of metal complexes designed to bind to amyloid-β. The development of radioactive metal-based complexes of copper and technetium designed as diagnostic imaging agents to detect amyloid burden in the brain is discussed. Separate sections of the review discuss the use of luminescent metal complexes to act as non-conventional probes of amyloid formation and recent research into the use of metal complexes as inhibitors of amyloid formation and toxicity.
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Affiliation(s)
- David J Hayne
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, 3010, Australia.
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Jia J, Cui M, Dai J, Wang X, Ding YS, Jia H, Liu B. 99mTc-labeled benzothiazole and stilbene derivatives as imaging agents for Aβ plaques in cerebral amyloid angiopathy. MEDCHEMCOMM 2014. [DOI: 10.1039/c3md00195d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
99mTc-labeled probes in this study for the Aβ plaques in the blood vessels of the brain may be used as SPECT imaging agents for the diagnosis of CAA.
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Affiliation(s)
- Jianhua Jia
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Jiapei Dai
- Wuhan Institute for Neuroscience and Neuroengineering
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Xuedan Wang
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Yu-Shin Ding
- Departments of Radiology and Psychiatry
- School of Medicine
- Department of Chemistry
- New York University
- New York
| | - Hongmei Jia
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Boli Liu
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
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