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Mann G, Daksh S, Kumar N, Kaul A, Roy BG, Thirumal M, Datta A. Pre-clinical evaluation of 99mTc-labeled chalcone derivative for amyloid-β imaging post-head trauma. J Biol Inorg Chem 2024; 29:187-199. [PMID: 38607392 DOI: 10.1007/s00775-024-02049-x] [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: 06/19/2023] [Accepted: 02/08/2024] [Indexed: 04/13/2024]
Abstract
Aβ42 plaque formation is one of the preliminary pathologic events that occur post traumatic brain injury (TBI) which is also among the most noteworthy hallmarks of AD. Their pre symptomatic detection is therefore vital for better disease management. Chalcone-picolinic acid chelator derivative, 6-({[(6-carboxypyridin-2-yl)methyl](2-{4-[(2E)-3-[4-(dimethyl amino)phenyl]prop-2-enoyl]phenoxy}ethyl)amino}methyl)pyridine-2-carboxylic acid, Py-chal was synthesized to selectively identify amyloid plaques formed post head trauma using SPECT imaging by stable complexation to 99mTc with > 97% efficiency without compromising amyloid specificity. The binding potential of the Py-chal ligand to amyloid plaques remained high as confirmed by in vitro binding assay and photophysical spectra. Further, the Py-chal complex stained amyloid aggregates in the brain sections of rmTBI mice model. In vivo scintigraphy in TBI mice model displayed high uptake followed by high retention while the healthy rabbits displayed higher brain uptake followed by a rapid washout attributed to absence of amyloid plaques. Higher uptake in brain of TBI model was also confirmed by ex vivo biodistribution analysis wherein brain uptake of 3.38 ± 0.2% ID/g at 2 min p.i. was observed for TBI mice model. This was followed by prolonged retention and more than twofold higher activity as compared to sham mice brain. This preliminary data suggests the specificity of the radiotracer for amyloid detection post head trauma and applicability of 99mTc labeled Py-chal complex for TBI-induced β-amyloid SPECT imaging.
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Affiliation(s)
- Garima Mann
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi, 110054, India
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Shivani Daksh
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi, 110054, India
| | - Nikhil Kumar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi, 110054, India
| | - Ankur Kaul
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi, 110054, India
| | - B G Roy
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi, 110054, India
| | - M Thirumal
- Department of Chemistry, University of Delhi, Delhi, 110007, India.
| | - Anupama Datta
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi, 110054, India.
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2
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Daksh S, Gond C, Kumar N, Kaur L, Ojha H, Deep S, Datta A. Binding studies of potential amyloid-β inhibiting chalcone derivative with bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123362. [PMID: 37774582 DOI: 10.1016/j.saa.2023.123362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 08/23/2023] [Accepted: 09/04/2023] [Indexed: 10/01/2023]
Abstract
Chalcones (α-phenyl-β-benzoylethylene) and their natural-source derivatives have been investigated for their remarkable biological activities, like neuroprotective, anti-inflammatory, and anti-tumor properties. A triazole chalcone ligand (E)-3-(4-(dimethylamino)phenyl)-1-(4-((1-(2-(4-((E)-3-(4(dimethylamino)phenyl)acryloyl)phenoxy)ethyl)-1H-1,2,3-triazol-4-yl)methoxy)phenyl)prop-2-en-1-one (L1) was synthesized by Cu(I)- catalysed click reaction. The mechanistic properties of L1 for therapy were evaluated by analyzing the binding interactions between L1 and bovine serum albumin (BSA) through photophysical and computational studies. The structural elucidation of ligand L1 was carried out by NMR and mass spectrometry. The Aβ inhibitory activity of L1 was studied by thioflavin T assay and transmission electron microscopy. The biomolecular interaction of L1 with bovine serum albumin was examined through multi-spectroscopic techniques in combination with in silico studies. UV-Visible absorption, fluorescence spectroscopy, circular dichroism, Förster resonance energy transfer, and three-dimensional fluorescence studies confirmed the formation of a BSA-L1 complex. The potential binding sites, mechanism of interactions, and variations in the environment of tyrosine and tryptophan amino acid residues of BSA were assessed at different temperatures. The binding constant for the Static quenching mechanism of intrinsic fluorescence of BSA was of the order of 105 M-1. The esterase enzyme activity assay in the presence of L1 revealed an increase in the protein enzyme activity. Molecular docking studies suggested L1 was predominantly bound to BSA by hydrogen bonds and Van der Waals forces.
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Affiliation(s)
- Shivani Daksh
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India; Department of Chemistry, Indian Institute of Technology, Delhi, Hauz-Khas, New Delhi 110016, India
| | - Chandraprakash Gond
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, Uttar Pradesh, India
| | - Nikhil Kumar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India; Department of Chemistry, Indian Institute of Technology, Delhi, Hauz-Khas, New Delhi 110016, India
| | - Lajpreet Kaur
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India
| | - Himanshu Ojha
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India
| | - Shashank Deep
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz-Khas, New Delhi 110016, India.
| | - Anupama Datta
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India.
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3
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Abujamai J, Satar R, Ansari SA. Designing and Formulation of Nanocarriers for "Alzheimer's and Parkinson's" Early Detection and Therapy. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:1251-1262. [PMID: 38351689 DOI: 10.2174/0118715273297024240201055550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 08/28/2024]
Abstract
The potential of nanotechnology in advancing the diagnosis and treatment of neurodegenerative diseases is explored in this comprehensive literature review. The findings of these studies suggest that nanotechnology has the capacity to improve existing therapeutic approaches, create novel and safe compounds, and develop more precise imaging techniques and diagnostic methods for neurodegenerative diseases. With the emergence of the nanomedicine era, a new and innovative approach of diagnosing and treating these conditions has been introduced. Notably, the researchers' development of a nanocarrier drug delivery tool demonstrates immense potential compared to conventional therapy, as it maximizes therapeutic efficacy and minimizes undesirable as side effects.
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Affiliation(s)
- Jakleen Abujamai
- Medicine Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia
| | - Rukhsana Satar
- Division of Biochemistry, Department of Physiology and Biochemistry, Ibn Sina National College for Medical Studies, Jeddah 22421, Saudi Arabia
| | - Shakeel Ahmed Ansari
- Department of Biochemistry, Medicine Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia
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Zha J, He J, Wu C, Zhang M, Liu X, Zhang J. Designing drugs and chemical probes with the dualsteric approach. Chem Soc Rev 2023; 52:8651-8677. [PMID: 37990599 DOI: 10.1039/d3cs00650f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Traditionally, drugs are monovalent, targeting only one site on the protein surface. This includes orthosteric and allosteric drugs, which bind the protein at orthosteric and allosteric sites, respectively. Orthosteric drugs are good in potency, whereas allosteric drugs have better selectivity and are solutions to classically undruggable targets. However, it would be difficult to simultaneously reach high potency and selectivity when targeting only one site. Also, both kinds of monovalent drugs suffer from mutation-caused drug resistance. To overcome these obstacles, dualsteric modulators have been proposed in the past twenty years. Compared to orthosteric or allosteric drugs, dualsteric modulators are bivalent (or bitopic) with two pharmacophores. Each of the two pharmacophores bind the protein at the orthosteric and an allosteric site, which could bring the modulator with special properties beyond monovalent drugs. In this study, we comprehensively review the current development of dualsteric modulators. Our main effort reason and illustrate the aims to apply the dualsteric approach, including a "double win" of potency and selectivity, overcoming mutation-caused drug resistance, developments of function-biased modulators, and design of partial agonists. Moreover, the strengths of the dualsteric technique also led to its application outside pharmacy, including the design of highly sensitive fluorescent tracers and usage as molecular rulers. Besides, we also introduced drug targets, designing strategies, and validation methods of dualsteric modulators. Finally, we detail the conclusions and perspectives.
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Affiliation(s)
- Jinyin Zha
- College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
- State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jixiao He
- State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengwei Wu
- State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mingyang Zhang
- State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinyi Liu
- College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
- State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Zhang
- College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
- State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Medicinal Chemistry and Bioinformatics Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Dhillon S, Kinger M, Rani P, Chahal M, Kumari G, Aneja DK, Kim SW, Choi E, Kumar S. Advances in Aβ imaging probes: a comprehensive study of radiolabelled 1,3-diaryl-2-propen-1-ones for Alzheimer's disease: a review. RSC Adv 2023; 13:35877-35903. [PMID: 38090082 PMCID: PMC10712011 DOI: 10.1039/d3ra06258a] [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: 09/14/2023] [Accepted: 11/09/2023] [Indexed: 04/26/2024] Open
Abstract
Alzheimer's disease (AD) is a formidable neurodegenerative disorder characterized by cognitive decline, memory impairment and inability to perform everyday tasks. In the pursuit of innovative diagnostic and therapeutic strategies, the synthesis and application of radiolabelled compounds have garnered significant attention. This review delves into the synthesis and biological significance of radiolabelled 1,3-diaryl-2-propen-1-ones, commonly known as chalcones, as Aβ imaging probes for AD. These versatile chalcone derivatives have demonstrated noteworthy potential as radiotracers for visualizing Aβ imaging probes, which are hallmark pathologies of AD. This review encompasses an exploration of chalcone synthesis via diverse methodologies and their biological implications, both as standalone entities and as precursors for intricate natural products. In addition, the pivotal role of advanced imaging techniques, such as single-photon emission computed tomography (SPECT) and positron emission tomography (PET), using various radioisotopes is highlighted. The use of radiopharmaceutical agents, including [18F]FDG, [18F]FMAPO, [11C]6-Me-BTA-1, [124/125I]IBETA, and [64Cu]YW-7 as potent tools for early diagnosis and therapeutic advancement is explored. This review underscores the critical nexus between radiolabelled chalcones and their pivotal role in advancing diagnostic and therapeutic paradigms in AD research. Furthermore, this study encapsulated the role of radiolabelled chalcone emphasizing their prospective implications for drug development and therapeutic interventions. A focal point of paramount significance is the elucidation of Aβ imaging probes and its important role in the combat against AD, with a particular emphasis on their role in facilitating early diagnosis and fostering advancements in therapeutic strategies.
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Affiliation(s)
- Sudeep Dhillon
- Department of Chemistry, Chaudhary Bansi Lal University Bhiwani 127031 Haryana India
| | - Mayank Kinger
- Department of Chemistry, Chaudhary Bansi Lal University Bhiwani 127031 Haryana India
| | - Priyanka Rani
- Department of Chemistry, Chaudhary Bansi Lal University Bhiwani 127031 Haryana India
| | - Mamta Chahal
- Department of Chemistry, Chaudhary Bansi Lal University Bhiwani 127031 Haryana India
| | - Ginna Kumari
- Department of Chemistry, Chaudhary Bansi Lal University Bhiwani 127031 Haryana India
| | - Deepak Kumar Aneja
- Department of Chemistry, Chaudhary Bansi Lal University Bhiwani 127031 Haryana India
| | - Sang Wook Kim
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju 38066 Republic of Korea
| | - Eunseok Choi
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju 38066 Republic of Korea
| | - Sushil Kumar
- Biozenta Lifescience Pvt. Ltd Ind. Area Tahliwal Una HP 174303 India
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Prajapati S, Sinha P, Hindore S, Jana S. Selective turn-on fluorescence sensing of Fe 2+ in real water samples by chalcones. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:122107. [PMID: 36410175 DOI: 10.1016/j.saa.2022.122107] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/02/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
The design of fluorescence sensor for selective detection of Fe2+ is very important as it is part of different biochemical redox system related to a number of diseases. In many occasion sensors are unable to distinguish Fe2+ from Fe3+ ions. In the present work, we report simple chalcone type sensors for sensing Fe2+ ions in semi aqueous system. The receptors R1 and R2 have showed excellent sensing properties at pH 7 in CH3OH-H2O (1:1, v/v) solvent system. The fluorescence emission intensity of the complexes between hosts and Fe2+ is least affected by the other competitive metal ions leading to the formation of very tight host-guest complex. The LOD for the R1 and R2 for Fe2+ are 1.91 μM and 3.54 μM respectively, which is quite low in compared to the many other reported sensors. The practical applicability of these sensors is determined by the detection of Fe2+ in real water samples. So chalcones would be cost effective PET inhibited fluorescence sensor for Fe2+.
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Affiliation(s)
- Sunita Prajapati
- Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India
| | - Puspita Sinha
- Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India
| | - Sandeep Hindore
- Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India
| | - Subrata Jana
- Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India.
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7
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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: 4] [Impact Index Per Article: 1.3] [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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8
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Receptor mapping using methoxy phenyl piperazine derivative: Preclinical PET imaging. Bioorg Chem 2021; 117:105429. [PMID: 34736134 DOI: 10.1016/j.bioorg.2021.105429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/01/2021] [Accepted: 10/11/2021] [Indexed: 12/18/2022]
Abstract
This study aimed at assessing 2-methoxyphenyl piperazine derivative for its binding specificity and suitability in mapping metabotropic glutamate receptor subtype 1, which is implicated in several neuropsychiatric disorders. N-(2-(4-(2-Methoxyphenyl)piperazin-1-yl)ethyl)-N-methylpyridin-2-amine was synthesised and evaluated for brain imaging subsequent to radiolabelling with [11C] radioisotope via methylation process in 98.9% purity and 52 ± 6% yield (decay corrected). The specific activity was in the range of 72-93 GBq/µmol. The haemolysis of blood was 2-5% for initial 4 hr and remained < 10% after 24 h of incubation indicating low toxicity. In vitro autoradiograms after coincubation with unlabelled ligand confirmed the high uptake of the PET radioligand in the mGluR1 receptor rich regions. The PET as well as biodistribution studies also showed high activity in the brain with a direct correlation between receptor abundance distribution pattern and tracer activity. The biodistribution analyses revealed initial high brain uptake (4.18 ± 0.48). The highest uptake was found in cerebellum (SUV 4.7 ± 0.2), followed by thalamus (SUV 3.5 ± 0.1), and striatum (SUV 3 ± 0.1). In contrast, pons had negligible tracer activity. The high uptake observed in all the regions with known mGluR1 activity indicates suitability of the ligand for mGluR1 imaging.
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9
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Comprehensive review on design perspective of PET ligands based on β-amyloids, tau and neuroinflammation for diagnostic intervention of Alzheimer’s disease. Clin Transl Imaging 2021. [DOI: 10.1007/s40336-021-00410-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Thapa P, Upadhyay SP, Suo WZ, Singh V, Gurung P, Lee ES, Sharma R, Sharma M. Chalcone and its analogs: Therapeutic and diagnostic applications in Alzheimer's disease. Bioorg Chem 2021; 108:104681. [PMID: 33571811 PMCID: PMC7928223 DOI: 10.1016/j.bioorg.2021.104681] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/15/2020] [Accepted: 01/20/2021] [Indexed: 02/08/2023]
Abstract
Chalcone [(E)-1,3-diphenyl-2-propene-1-one], a small molecule with α, β unsaturated carbonyl group is a precursor or component of many natural flavonoids and isoflavonoids. It is one of the privileged structures in medicinal chemistry. It possesses a wide range of biological activities encouraging many medicinal chemists to study this scaffold for its usefulness to oncology, infectious diseases, virology and neurodegenerative diseases including Alzheimer's disease (AD). Small molecular size, convenient and cost-effective synthesis, and flexibility for modifications to modulate lipophilicity suitable for blood brain barrier (BBB) permeability make chalcones a preferred candidate for their therapeutic and diagnostic potential in AD. This review summarizes and highlights the importance of chalcone and its analogs as single target small therapeutic agents, multi-target directed ligands (MTDLs) as well as molecular imaging agents for AD. The information summarized here will guide many medicinal chemist and researchers involved in drug discovery to consider chalcone as a potential scaffold for the development of anti-AD agents including theranostics.
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Affiliation(s)
- Pritam Thapa
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA.
| | - Sunil P Upadhyay
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
| | - William Z Suo
- Laboratory for Alzheimer's Disease & Aging Research, Veterans Affairs Medical Center, Kansas City, MO 64128, USA
| | - Vikas Singh
- Division of Neurology, KCVA Medical Center, Kansas City, MO, USA
| | - Prajwal Gurung
- Inflammation Program, University of Iowa, Iowa City, IA 52242, USA
| | - Eung Seok Lee
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Ram Sharma
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
| | - Mukut Sharma
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
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11
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Naghdi T, Faham S, Mahmoudi T, Pourreza N, Ghavami R, Golmohammadi H. Phytochemicals toward Green (Bio)sensing. ACS Sens 2020; 5:3770-3805. [PMID: 33301670 DOI: 10.1021/acssensors.0c02101] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Because of numerous inherent and unique characteristics of phytochemicals as bioactive compounds derived from plants, they have been widely used as one of the most interesting nature-based compounds in a myriad of fields. Moreover, a wide variety of phytochemicals offer a plethora of fascinating optical and electrochemical features that pave the way toward their development as optical and electrochemical (bio)sensors for clinical/health diagnostics, environmental monitoring, food quality control, and bioimaging. In the current review, we highlight how phytochemicals have been tailored and used for a wide variety of optical and electrochemical (bio)sensing and bioimaging applications, after classifying and introducing them according to their chemical structures. Finally, the current challenges and future directions/perspective on the optical and electrochemical (bio)sensing applications of phytochemicals are discussed with the goal of further expanding their potential applications in (bio)sensing technology. Regarding the advantageous features of phytochemicals as highly promising and potential biomaterials, we envisage that many of the existing chemical-based (bio)sensors will be replaced by phytochemical-based ones in the near future.
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Affiliation(s)
- Tina Naghdi
- Nanosensor Bioplatforms Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran 14335-186, Iran
| | - Shadab Faham
- Chemometrics Laboratory, Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Tohid Mahmoudi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
| | - Nahid Pourreza
- Chemistry Department, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz 6153753843, Iran
| | - Raouf Ghavami
- Chemometrics Laboratory, Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Hamed Golmohammadi
- Nanosensor Bioplatforms Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran 14335-186, Iran
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12
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Chauhan K, Mann G, Jaswal AP, Ojha H, Mishra AK, Datta A. 68Ga-Labeled bismacrocyclic methylene phosphonate as potential bone seeking PET radiopharmaceutical. Bioorg Chem 2020; 104:104185. [PMID: 32911200 DOI: 10.1016/j.bioorg.2020.104185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/21/2020] [Accepted: 07/28/2020] [Indexed: 11/16/2022]
Abstract
Phosphonates-based agents are well-known bone-seeking radiopharmaceuticals with application in detection and therapy. With higher sensitivity and resolution offered by Positron Emission Tomography (PET), tracers based on this technique are gaining huge attention. 68Ga-based generator and radiotracers render independence from the on-site cyclotron. We report the development of 68Ga-labeled DOTA-based bismacrocyclic phosphonate derivative, for bone PET imaging. The synthesis and characterization of 68Ga- DO3P-AME-DO3P was carried out in > 95% purity. The radiotracer displayed high stability and low binding affinity (<3%) to blood serum. High in vitro binding affinity were observed for synthetic hydroxyapatite, SAOS-2, osteoclast and osteoblast cells. In vivo pharmacokinetics revealed fast washout with biphasic release pattern. The deposition of radiotracer in osseous tissues was high (Bone/Muscle ratio:18), as studied from the biodistribution studies. In vivo PET/CT and biodistribution analyses revealed the ability of 68Ga-DO3P-AME-DO3P to target and accumulate in bone, thus displaying its potential as a PET bone imaging agent.
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Affiliation(s)
- Kanchan Chauhan
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India; Department of Bionanotechnology, Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km. 107 carretera Tijuana-Ensenada, 22860 Ensenada, Baja California, Mexico
| | - Garima Mann
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India
| | - Ambika Parmar Jaswal
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India
| | - Himanshu Ojha
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India
| | - Anil K Mishra
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India.
| | - Anupama Datta
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India.
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13
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He Y, Fu T, Li Y, Xue W, Cui M, Wang L, Niu M, Peng Z, Jia J. Flexible multidentate benzyldiamine derivatives with high affinity for β-amyloid in cerebral amyloid angiopathy. Mol Divers 2020; 25:525-533. [PMID: 32410113 DOI: 10.1007/s11030-020-10098-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 04/25/2020] [Indexed: 11/26/2022]
Abstract
Cerebral amyloid angiopathy (CAA) commonly found in the aged is pathologically characterized by β-amyloid (Aβ) deposition in the walls of arteries and capillaries of brain. In this study, four flexible multidentate benzyldiamine derivatives as potential probes for cerebrovascular Aβ deposition were designed and synthesized. In in vitro inhibition assays, the ligands 18-21 displayed high affinities for Aβ aggregates with Ki values of 1.45 ± 0.53 nM, 1.68 ± 0.35 nM, 1.16 ± 0.23 nM and 1.72 ± 0.19 nM, respectively. A significant improvement in the binding affinity over the monomer, compounds 9-12 or benzyldiamine derivatives, demonstrated the applicability of the multidentate approach. The underlying mechanism of these novel Aβ agents was explored by molecular docking technique, which theoretically verified the high affinities of the multidentate benzyldiamine derivatives for Aβ aggregates. Moreover, the molecular masses of the ligands 18-21 are more than 700 Dalton, which are believed to be hardly capable of penetrating blood brain barrier. In this regard, these ligands could be used to distinguish CAA from Alzheimer's disease which is another Aβ-related disorder disease. To convert these ligands to positron emission tomography imaging agents, we attempted to radiosynthesize [18F]18. Though the radiolabeling was not very successful, the preliminary results suggested that these newly proposed multidentate benzyldiamine derivatives may be used as potential Aβ imaging agents in cerebral amyloid angiopathy.
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Affiliation(s)
- Yujia He
- Department of Radiological Medicine and Oncology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Tingting Fu
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China
| | - Yuying Li
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Weiwei Xue
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, People's Republic of China.
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Liang Wang
- Department of Radiological Medicine and Oncology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Mengda Niu
- Department of Radiological Medicine and Oncology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Zhiping Peng
- Department of Radiological Medicine and Oncology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Jianhua Jia
- Department of Radiological Medicine and Oncology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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14
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Watanabe H, Saji H, Ono M. Novel fluorescence probes based on the chalcone scaffold for in vitro staining of β-amyloid plaques. Bioorg Med Chem Lett 2018; 28:3242-3246. [PMID: 30131243 DOI: 10.1016/j.bmcl.2018.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 07/30/2018] [Accepted: 08/07/2018] [Indexed: 11/28/2022]
Abstract
The β-amyloid (Aβ) plaque is one of the neuropathological hallmarks in the Alzheimer's disease brain. The detection of Aβ plaques with fluorescence probes is useful for preclinical studies of Alzheimer's disease. In this study, we developed four novel fluorescence probes based on chalcone scaffold. In an in vitro binding study, all FCH derivatives showed moderate binding affinity for Aβ(1-42) aggregates (Ki = 72-114 nM). The fluorescence intensities of FCH-3 and FCH-4 dramatically changed in the presence of Aβ(1-42) aggregates (6.7 and 14.2 fold), but the changes of FCH-1 and FCH-2 were minor (2.0 and 2.4 fold). In a fluorescence staining study using Tg2576 mouse brain sections, FCH-3 and FCH-4 clearly visualized Aβ plaques, but FCH-1 and FCH-2 did not stain. Taken together, all FCH derivatives could bind to Aβ aggregates, but only FCH-3 and FCH-4 may be useful fluorescence probes for in vitro staining of Aβ plaques.
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Affiliation(s)
- Hiroyuki Watanabe
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hideo Saji
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Masahiro Ono
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan.
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