1
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Kerpa S, Schulze VR, Holzapfel M, Cvancar L, Fischer M, Maison W. Decoration of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) with N-oxides increases the T 1 relaxivity of Gd-complexes. ChemistryOpen 2024; 13:e202300298. [PMID: 38224205 PMCID: PMC11230940 DOI: 10.1002/open.202300298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 12/15/2023] [Indexed: 01/16/2024] Open
Abstract
High complex stability and longitudinal relaxivity of Gd-based contrast agents are important requirements for magnetic resonance imaging (MRI) because they ensure patient safety and contribute to measurement sensitivity. Charged and zwitterionic Gd3+-complexes of the well-known chelator 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) provide an excellent basis for the development of safe and sensitive contrast agents. In this report, we describe the synthesis of DOTA-NOx, a DOTA derivative with four N-oxide functionalities via "click" functionalization of the tetraazide DOTAZA. The resulting complexes Gd-DOTA-NOx and Eu-DOTA-NOx are stable compounds in aqueous solution. NMR-spectroscopic characterization revealed a high excess of the twisted square antiprismatic (TSAP) coordination geometry over square antiprismatic (SAP). The longitudinal relaxivity of Gd-DOTA-NOx was found to be r1=7.7 mm-1 s-1 (1.41 T, 37 °C), an unusually high value for DOTA complexes of comparable weight. We attribute this high relaxivity to the steric influence and an ordering effect on outer sphere water molecules surrounding the complex generated by the strongly hydrated N-oxide groups. Moreover, Gd-DOTA-NOx was found to be stable against transchelation with high excess of EDTA (200 eq) over a period of 36 h, and it has a similar in vitro cell toxicity as clinically used DOTA-based GBCAs.
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Affiliation(s)
- Svenja Kerpa
- Department of Chemistry, Institute of Pharmacy, Universität Hamburg, Bundesstrasse 45, 20146, Hamburg, Germany
| | - Verena R Schulze
- Fraunhofer Institute for Applied Polymer Research IAP, Center for Applied Nanotechnology CAN, Universität Hamburg, Bundesstrasse 45, 20146, Hamburg, Germany
| | - Malte Holzapfel
- Fraunhofer Institute for Applied Polymer Research IAP, Center for Applied Nanotechnology CAN, Universität Hamburg, Bundesstrasse 45, 20146, Hamburg, Germany
| | - Lina Cvancar
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146, Hamburg, Germany
| | - Markus Fischer
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146, Hamburg, Germany
| | - Wolfgang Maison
- Department of Chemistry, Institute of Pharmacy, Universität Hamburg, Bundesstrasse 45, 20146, Hamburg, Germany
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2
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Kaster MA, Caldwell MA, Meade TJ. Development of Ln(III) Derivatives as 19F Parashift Probes. Inorg Chem 2024; 63:9877-9887. [PMID: 38748735 DOI: 10.1021/acs.inorgchem.4c00652] [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: 05/28/2024]
Abstract
19F parashift probes with paramagnetically shifted reporter nuclei provide attractive platforms to develop molecular imaging probes. These probes enable ratiometric detection of molecular disease markers using a direct detection technique. Here, we describe a series of trivalent lanthanide (Ln(III)) complexes that are structural analogues of the clinically approved MR contrast agent (CA) ProHance to obtain LnL 19F parashift probes. We evaluated trans-gadolinium paramagnetic lanthanides compared to diamagnetic YL for 19F chemical shift and relaxation rate enhancement. The paramagnetic contribution to chemical shift (δPCS) for paramagnetic LnL exhibited either shifts to lower frequency (δPCS < 0 for TbL, DyL, and HoL) or shifts to higher frequency (δPCS > 0 for ErL, TmL, and YbL) compared to YL 19F spectroscopic signal. Zero-echo time pulse sequences achieved 56-fold sensitivity enhancement for DyL over YL, while developing probe-specific pulse sequences with fast delay times and acquisition times achieved 0.6-fold enhancement in limit of detection for DyL. DyL provides an attractive platform to develop 19F parashift probes for ratiometric detection of enzymatic activity.
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Affiliation(s)
- Megan A Kaster
- Departments of Chemistry, Molecular Biosciences, Neurobiology and Radiology, Northwestern University, 2145 N. Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael A Caldwell
- Departments of Chemistry, Molecular Biosciences, Neurobiology and Radiology, Northwestern University, 2145 N. Sheridan Road, Evanston, Illinois 60208, United States
| | - Thomas J Meade
- Departments of Chemistry, Molecular Biosciences, Neurobiology and Radiology, Northwestern University, 2145 N. Sheridan Road, Evanston, Illinois 60208, United States
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3
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Jian Y, Mo G, Xu W, Liu Y, Zhang Z, Ding Y, Gao R, Xu J, Zhu J, Shu K, Yan Z, Carniato F, Platas-Iglesias C, Ye F, Botta M, Dai L. Chiral Pyclen-Based Heptadentate Chelates as Highly Stable MRI Contrast Agents. Inorg Chem 2024; 63:8462-8475. [PMID: 38642052 DOI: 10.1021/acs.inorgchem.4c01028] [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: 04/22/2024]
Abstract
In recent years, pyclen-based complexes have attracted a great deal of interest as magnetic resonance imaging (MRI) contrast agents (CAs) and luminescent materials, as well as radiopharmaceuticals. Remarkably, gadopiclenol, a Gd(III) bishydrated complex featuring a pyclen-based heptadentate ligand, received approval as a novel contrast agent for clinical MRI application in 2022. To maximize stability and efficiency, two novel chiral pyclen-based chelators and their complexes were developed in this study. Gd-X-PCTA-2 showed significant enhancements in both thermodynamic and kinetic stabilities compared to those of the achiral parent derivative Gd-PCTA. 1H NMRD profiles reveal that both chiral gadolinium complexes (Gd-X-PCTA-1 and Gd-X-PCTA-2) have a higher relaxivity than Gd-PCTA, while variable-temperature 17O NMR studies show that the two inner-sphere water molecules have distinct residence times τMa and τMb. Furthermore, in vivo imaging demonstrates that Gd-X-PCTA-2 enhances the signal in the heart and kidneys of the mice, and the chiral Gd complexes exhibit the ability to distinguish between tumors and normal tissues in a 4T1 mouse model more efficiently than that of the clinical agent gadobutrol. Biodistribution studies show that Gd-PCTA and Gd-X-PCTA-2 are primarily cleared by a renal pathway, with 24 h residues of Gd-X-PCTA-2 in the liver and kidney being lower than those of Gd-PCTA.
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Affiliation(s)
- Yong Jian
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China 325035
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Gengshen Mo
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Weiyuan Xu
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Yao Liu
- Sichuan Key Laboratory of Medical Imaging, School of Pharmacy and Nanchong Key laboratory of MRI Contrast Agent, North Sichuan Medical College, Nanchong, People's Republic of China 637000
| | - Zhichao Zhang
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Yinghui Ding
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Ruonan Gao
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Jiao Xu
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Jiang Zhu
- Sichuan Key Laboratory of Medical Imaging, School of Pharmacy and Nanchong Key laboratory of MRI Contrast Agent, North Sichuan Medical College, Nanchong, People's Republic of China 637000
| | - Kun Shu
- Department of Radiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China 325027
| | - Zhihan Yan
- Department of Radiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China 325027
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, Alessandria, Italy 15121
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, A Coruña, Spain 15008
| | - Fangfu Ye
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China 325035
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, Alessandria, Italy 15121
| | - Lixiong Dai
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China 325035
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, People's Republic of China 325000
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4
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Kilic U, Hilfiker M, Wimer S, Ruder A, Schubert E, Schubert M, Argyropoulos C. Controlling the broadband enhanced light chirality with L-shaped dielectric metamaterials. Nat Commun 2024; 15:3757. [PMID: 38704375 PMCID: PMC11069550 DOI: 10.1038/s41467-024-48051-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 04/16/2024] [Indexed: 05/06/2024] Open
Abstract
The inherently weak chiroptical responses of natural materials limit their usage for controlling and enhancing chiral light-matter interactions. Recently, several nanostructures with subwavelength scale dimensions were demonstrated, mainly due to the advent of nanofabrication technologies, as a potential alternative to efficiently enhance chirality. However, the intrinsic lossy nature of metals and the inherent narrowband response of dielectric planar thin films or metasurface structures pose severe limitations toward the practical realization of broadband and tailorable chiral systems. Here, we tackle these problems by designing all-dielectric silicon-based L-shaped optical metamaterials based on tilted nanopillars that exhibit broadband and enhanced chiroptical response in transmission operation. We use an emerging bottom-up fabrication approach, named glancing angle deposition, to assemble these dielectric metamaterials on a wafer scale. The reported strong chirality and optical anisotropic properties are controllable in terms of both amplitude and operating frequency by simply varying the shape and dimensions of the nanopillars. The presented nanostructures can be used in a plethora of emerging nanophotonic applications, such as chiral sensors, polarization filters, and spin-locked nanowaveguides.
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Affiliation(s)
- Ufuk Kilic
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
| | - Matthew Hilfiker
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
- Onto Innovation Inc., Wilmington, MA, 01887, USA
| | - Shawn Wimer
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Alexander Ruder
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Eva Schubert
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Mathias Schubert
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
- Solid State Physics and NanoLund, Lund University, P.O. Box 118, 22100, Lund, Sweden
| | - Christos Argyropoulos
- Department of Electrical Engineering, The Pennsylvania State University, University Park, PA, 16803, USA.
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5
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Nielsen LG, Andersen HOB, Kenwright AM, Platas-Iglesias C, So Rensen TJ. Using Chiral Auxiliaries to Mimic the Effect of Chiral Media on the Structure of Lanthanide(III) Complexes Common in Bioimaging and Diagnostic MRI. Inorg Chem 2024; 63:7560-7570. [PMID: 38610098 DOI: 10.1021/acs.inorgchem.3c01589] [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: 04/14/2024]
Abstract
[Ln·DOTA]- complexes and systems derived therefrom are commonly used in MRI and optical bioimaging. These lanthanide(III) complexes are chiral, and, in solution, they are present in four forms, with two sets of enantiomers, with the ligand donors arranged in either a square antiprismatic, SAP, or twisted square antiprismatic geometry, TSAP. This complicated speciation is found in laboratory samples. To investigate speciation in biological media, when Ln·DOTA-like complexes interact with chiral biomolecules, six Eu·DOTA-monoamide complexes were prepared and investigated by using 1D and 2D 1H NMR. To emulate the chirality of biological media, the amide pendant arm was modified with one or two chiral centers. It is known that a chiral center on the DOTA scaffold significantly influences the properties of the system. Here, it was found that chirality much further away from the metal center changes the available conformational space and that both chiral centers and amide cis/trans isomerism may need to be considered─a fact that, for the optically enriched materials, led to the conclusion that eight chemically different forms may need to be considered, instead of the four forms necessary for DOTA. The results reported here clearly demonstrate the diverse speciation that must be considered when correlating an observation to a structure of a lanthanide(III) complex.
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Affiliation(s)
- Lea Gundorff Nielsen
- Department of Chemistry & Nano-Science Center, University of Copenhagen, Universitetsparken 5, Ko̷benhavn Ø DK2100, Denmark
| | - Helene O B Andersen
- Department of Chemistry & Nano-Science Center, University of Copenhagen, Universitetsparken 5, Ko̷benhavn Ø DK2100, Denmark
| | - Alan M Kenwright
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Carlos Platas-Iglesias
- Centro Interdisciplinar de Química e Bioloxía (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruña, Galicia 15071, Spain
| | - Thomas Just So Rensen
- Department of Chemistry & Nano-Science Center, University of Copenhagen, Universitetsparken 5, Ko̷benhavn Ø DK2100, Denmark
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6
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Zhang J, Dai L, He L, Bhattarai A, Chan CM, Tai WCS, Vardhanabhuti V, Law GL. Design and synthesis of chiral DOTA-based MRI contrast agents with remarkable relaxivities. Commun Chem 2023; 6:251. [PMID: 37973896 PMCID: PMC10654417 DOI: 10.1038/s42004-023-01050-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023] Open
Abstract
Due to the adverse effects of de-metallation in past concerning FDA-approved gadolinium-based contrast agents (GBCAs), researchers have been focusing on developing safer and more efficient alternatives that could avoid toxicity caused by free gadolinium ions. Herein, two chiral GBCAs, Gd-LS with sulfonate groups and Gd-T with hydroxyl groups, are reported as potential candidates for magnetic reasonance imaging (MRI). The r1 relaxivities of TSAP, SAP isomers of Gd-LS and SAP isomer of Gd-T at 1.4 T, 37 °C in water are 7.4 mM-1s-1, 14.5 mM-1s-1 and 5.2 mM-1s-1, respectively. Results show that the hydrophilic functional groups introduced to the chiral macrocyclic scaffold of Gd-T and Gd-LS both give constructive influences on the second-sphere relaxivity and enhance the overall r1 value. Both cases indicate that the design of GBCAs should also focus on the optimal window in Solomon-Bloembergen-Morgan (SBM) theory and the effects caused by the second-sphere and outer-sphere relaxivity.
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Affiliation(s)
- Junhui Zhang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Lixiong Dai
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518000, China
| | - Li He
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Abhisek Bhattarai
- Department of Diagnostic Radiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Chun-Ming Chan
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - William Chi-Shing Tai
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Varut Vardhanabhuti
- Department of Diagnostic Radiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Ga-Lai Law
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China.
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518000, China.
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7
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Xu W, Ye X, Wu M, Jiang X, Hugo Tse LH, Gu Y, Shu K, Xu L, Jian Y, Mo G, Xu J, Ding Y, Gao R, Shen J, Ye F, Yan Z, Dai L. Chiral Gd-DOTA as a Versatile Platform for Hepatobiliary and Tumor Targeting MRI Contrast Agents. J Med Chem 2023; 66:14669-14682. [PMID: 37855413 DOI: 10.1021/acs.jmedchem.3c01183] [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: 10/20/2023]
Abstract
The leakage of gadolinium ions (Gd3+) from commercial Gd3+-based contrast agents (GBCAs) in patients is currently the major safety concern in clinical magnetic resonance imaging (MRI) scans, and the lack of task-specific GBCAs limits its usage in the early detection of disease and imaging of specific biological regions. Herein, ultrastable GBCAs were constructed via decorating chiral Gd-DOTA with a phenylic analogue to one of the pendent arms, and the stability constant was determined as high as 27.08, accompanied by negligible decomplexation in 1 M of HCl over 2 years. A hepatic-specific chiral Gd-DOTA was screened out as a potential alternative to commercial Gd-EOB-DTPA, while combination with functional molecules favored chiral Gd-DOTA as tumor targeting probes. Therefore, the novel chiral Gd-DOTA is believed to be an ideal platform for designing the next generation of GBCAs for various clinical purposes due to its outstanding inert nature.
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Affiliation(s)
- Weiyuan Xu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325000, China
| | - Xinjian Ye
- Department of Radiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Min Wu
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xin Jiang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Lik Hang Hugo Tse
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
| | - Yanjuan Gu
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
| | - Kun Shu
- Department of Radiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Liuhui Xu
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yong Jian
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Gengshen Mo
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Jiao Xu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Yinghui Ding
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Ruonan Gao
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Jianliang Shen
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Fangfu Ye
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325000, China
| | - Zhihan Yan
- Department of Radiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Lixiong Dai
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Zhejiang Engineering Research Center for Innovation and Application of Intelligent Radiotherapy Technology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
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8
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Mattei CA, Montigaud V, Lefeuvre B, Dorcet V, Argouarch G, Cador O, Le Guennic B, Maury O, Lalli C, Guyot Y, Guy S, Gindre C, Bensalah-Ledoux A, Riobé F, Baguenard B, Pointillart F. Circularly polarized luminescence in the one-dimensional assembly of binaphtyl-based Yb(iii) single-molecule magnets. JOURNAL OF MATERIALS CHEMISTRY. C 2023; 11:7299-7310. [PMID: 37304727 PMCID: PMC10249065 DOI: 10.1039/d3tc00858d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/02/2023] [Indexed: 06/13/2023]
Abstract
Lanthanide ions have attracted great interest owing to their optical and magnetic properties. Single-molecule magnet (SMM) behavior has been a fascinating science for thirty years. Moreover, chiral lanthanide complexes allow the observation of remarkable circularly polarized luminescence (CPL). However, the combination of both SMM and CPL behaviors in a single molecular system is very rare and deserves attention in the design of multifunctional materials. Four chiral one-dimensional coordination compounds involving 1,1'-Bi-2-naphtol (BINOL)-derived bisphosphate ligands and the Yb(iii) centre were synthesized and characterized by powder and single-crystal X-ray diffraction. All the Yb(iii)-based polymers displayed field-induced SMM behavior with magnetic relaxation occurring by applying Raman processes and near infrared CPL in the solid state.
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Affiliation(s)
- Carlo Andrea Mattei
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Vincent Montigaud
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Bertrand Lefeuvre
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Gilles Argouarch
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Olivier Cador
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Olivier Maury
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie 69342 Lyon France
| | - Claudia Lalli
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Yannick Guyot
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR 5306, Institut Lumière Matière 69622 Lyon France
| | - Stéphan Guy
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR 5306, Institut Lumière Matière 69622 Lyon France
| | - Cyprien Gindre
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR 5306, Institut Lumière Matière 69622 Lyon France
| | - Amina Bensalah-Ledoux
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR 5306, Institut Lumière Matière 69622 Lyon France
| | - François Riobé
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie 69342 Lyon France
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026 F-33600 Pessac France
| | - Bruno Baguenard
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR 5306, Institut Lumière Matière 69622 Lyon France
| | - Fabrice Pointillart
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
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9
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Vollett KDW, Szulc DA, Cheng HLM. A Manganese Porphyrin Platform for the Design and Synthesis of Molecular and Targeted MRI Contrast Agents. Int J Mol Sci 2023; 24:ijms24119532. [PMID: 37298480 DOI: 10.3390/ijms24119532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Magnetic resonance imaging (MRI) contrast agents, in contrast to the plethora of fluorescent agents available to target disease biomarkers or exogenous implants, have remained predominantly non-specific. That is, they do not preferentially accumulate in specific locations in vivo because doing so necessitates longer contrast retention, which is contraindicated for current gadolinium (Gd) agents. This double-edge sword implies that Gd agents can offer either rapid elimination (but lack specificity) or targeted accumulation (but with toxicity risks). For this reason, MRI contrast agent innovation has been severely constrained. Gd-free alternatives based on manganese (Mn) chelates have been largely ineffective, as they are inherently unstable. In this study, we present a Mn(III) porphyrin (MnP) platform for bioconjugation, offering the highest stability and chemical versatility compared to any other T1 contrast agent. We exploit the inherent metal stability conferred by porphyrins and the absence of pendant bases (found in Gd or Mn chelates) that limit versatile functionalization. As proof-of-principle, we demonstrate labeling of human serum albumin, a model protein, and collagen hydrogels for applications in in-vivo targeted imaging and material tracking, respectively. In-vitro and in-vivo results confirm unprecedented metal stability, ease of functionalization, and high T1 relaxivity. This new platform opens the door to ex-vivo validation by fluorescent imaging and multipurpose molecular imaging in vivo.
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Affiliation(s)
- Kyle D W Vollett
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, ON M5G 1M1, Canada
| | - Daniel A Szulc
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, ON M5G 1M1, Canada
| | - Hai-Ling Margaret Cheng
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, ON M5G 1M1, Canada
- The Edward S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
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10
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Miao Q, Dekkers R, Gupta KBSS, Overhand M, Dasgupta R, Ubbink M. Rigidified and Hydrophilic DOTA-like Lanthanoid Ligands: Design, Synthesis, and Dynamic Properties. Inorg Chem 2023; 62:3776-3787. [PMID: 36802549 PMCID: PMC9996828 DOI: 10.1021/acs.inorgchem.2c03768] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Limiting the dynamics of paramagnetic tags is crucial for the accuracy of the structural information derived from paramagnetic nuclear magnetic resonance (NMR) experiments. A hydrophilic rigid 2,2',2″,2‴-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetic acid (DOTA)-like lanthanoid complex was designed and synthesized following a strategy that allows the incorporation of two sets of two adjacent substituents. This resulted in a C2 symmetric hydrophilic and rigid macrocyclic ring, featuring four chiral hydroxyl-methylene substituents. NMR spectroscopy was used to investigate the conformational dynamics of the novel macrocycle upon complexation with europium and compared to DOTA and its derivatives. The twisted square antiprismatic and square antiprismatic conformers coexist, but the former is favored, which is different from DOTA. Two-dimensional 1H exchange spectroscopy shows that ring flipping of the cyclen-ring is suppressed due to the presence of the four chiral equatorial hydroxyl-methylene substituents at proximate positions. The reorientation of the pendant arms causes conformational exchange between two conformers. The reorientation of the coordination arms is slower when the ring flipping is suppressed. This indicates that these complexes are suitable scaffolds to develop rigid probes for paramagnetic NMR of proteins. Due to their hydrophilic nature, it is anticipated that they are less likely to cause protein precipitation than their more hydrophobic counterparts.
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Affiliation(s)
- Qing Miao
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, Leiden 2333 CC, The Netherlands.,College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - René Dekkers
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, Leiden 2333 CC, The Netherlands
| | - Karthick Babu Sai Sankar Gupta
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, Leiden 2333 CC, The Netherlands
| | - Mark Overhand
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, Leiden 2333 CC, The Netherlands
| | - Rubin Dasgupta
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, Leiden 2333 CC, The Netherlands.,Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Solnavägen 9, Stockholm 17177, Sweden
| | - Marcellus Ubbink
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, Leiden 2333 CC, The Netherlands
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11
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Zhang J, Su X, Weng L, Tang K, Miao Y, Teng Z, Wang L. Gadolinium-hybridized mesoporous organosilica nanoparticles with high magnetic resonance imaging performance for targeted drug delivery. J Colloid Interface Sci 2023; 633:102-112. [PMID: 36436344 DOI: 10.1016/j.jcis.2022.11.085] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Magnetic resonance (MR) imaging techniques, which can provide images with excellent anatomical detail, are widely used in clinical diagnosis. However, the current clinical small molecule gadolinium (Gd) contrast agents have the defects of relatively low sensitivity and poor tumor-target specificity, preventing their adoption in biology and medicine. Herein, a facile synthetic strategy to fabricate gadolinium-hybridized mesoporous organosilica nanoparticles (MOSG) through a nanoprecipitation reaction, with the surface of nanoparticles grafted with the fluorescent dye isothiocyanate (FITC) and arginine-glycine-aspartic acid (RGD) for delivery of the antitumour drug doxorubicin hydrochloride (DOX), resulting in a high-performance nanotheranostic (RGD-MOSG-FITC/DOX) for targeted magnetic resonance imaging and chemotherapy of tumors. The prepared MOSG had a particle size of 60-80 nm and gadolinium elements were distributed in clusters that exhibited boosted longitudinal relaxivity. Routine blood tests and histopathology indicated good biocompatibility of MOSG. Furthermore, after being decorated with Arg-Gly-Asp peptide (RGD), RGD-MOSG-FITC demonstrated more preferable cellular uptake by HeLa cells (high expression of αⅤβ3) than MOSG without RGD grafting. Additionally, the tumor growth inhibition effect of RGD-MOSG-FITC/DOX was substantially more effective than that of the other groups. Therefore, this new delivery platform has good application potential in the field of tumor diagnosis and treatment.
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Affiliation(s)
- Junjie Zhang
- Department of Chemistry, Bengbu Medical College, Bengbu 233030, PR China
| | - Xiaodan Su
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China
| | - Lixing Weng
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China
| | - Kaiyuan Tang
- Department of Chemistry, Bengbu Medical College, Bengbu 233030, PR China
| | - Yuchen Miao
- Department of Chemistry, Bengbu Medical College, Bengbu 233030, PR China
| | - Zhaogang Teng
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China.
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China.
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12
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Singh P, kumari N, Kaul A, Srivastava A, Singh VK, Srivastava K, Tiwari AK. Acetamidobenzoxazolone conjugated DOTA system for assessing 18 kDa translocator protein during pulmonary inflammation. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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13
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Nanabala R, Pillai MRA, Gopal B. Preparation of Patient Doses of [ 177Lu]Lu-DOTATATE and [ 177Lu]Lu-PSMA-617 with Carrier Added (CA) and No Carrier Added (NCA) 177Lu. Nucl Med Mol Imaging 2022; 56:313-322. [PMID: 36425271 PMCID: PMC9679127 DOI: 10.1007/s13139-022-00778-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/31/2022] [Accepted: 09/18/2022] [Indexed: 10/10/2022] Open
Abstract
Purpose [177Lu]Lu-DOTATATE and [177Lu]Lu-PSMA-617 used for targeted radionuclide therapy are very often prepared in the hospital radiopharmacy. The preparation parameters vary depending upon the specific activity of the 177Lu used. The aim of this study was to develop optimized protocols to be used in the nuclear medicine department for the preparation of patient doses of the above radiopharmaceuticals. Method 177Lu (CA and NCA) were used for radiolabeling DOTATATE and PSMA-617. Parameters studied are 177Lu of different specific activity and different peptide concentrations and two different buffer systems. Paper and thin layer chromatography systems were used for estimating the radiochemical yield as well as radiochemical purity. Solid-phase extraction was used for the purification of the labeled tracers. Results [177Lu]Lu-DOTATATE was prepared with CA 177Lu (n = 13) and NCA177Lu (n = 6). Four batches each of [177Lu]Lu-PSMA-617 were prepared using CA and NCA 177Lu. Radiochemical yields > 80% and final product with less than < 1% radiochemical impurity could be obtained in all batches which were used for therapy. Conclusion Robust protocols for the preparation of clinical doses of [177Lu]Lu-DOTATATE and [177Lu]Lu-PSMA-617 were developed and used for the preparation of clinical doses. The quality of the SPECT images of both the tracers are consistent with the expected uptake in respective diseases.
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Affiliation(s)
- Raviteja Nanabala
- Molecular Cyclotrons Private Limited, Puthuvype, Ernakulam, Kerala 682508 India
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology University, Vellore, Tamil Nadu 632014 India
| | | | - Buvaneswari Gopal
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology University, Vellore, Tamil Nadu 632014 India
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14
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Uzal-Varela R, Rodríguez-Rodríguez A, Wang H, Esteban-Gómez D, Brandariz I, Gale EM, Caravan P, Platas-Iglesias C. Prediction of Gd(III) complex thermodynamic stability. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214606] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Storm Thomsen M, Andersen HOB, Sørensen TJ. Long story short: donor set symmetry in [Eu(DOTA)(H 2O)] - crystals determines the electronic structure. Dalton Trans 2022; 51:14118-14124. [PMID: 36043508 DOI: 10.1039/d2dt02172b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lanthanide complexes of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid DOTA have been studied in great detail due to their use as MRI contrast agents. Since the first report from Desreux in 1980, the Ln[DOTA]- complexes of gadolinium(III) in particular have been thoroughly investigated. The forms of the nine-coordinated [Ln(DOTA)(H2O)]- complexes are well known, and the ligand backbone has been used extensively to create functional MRI contrast agents, luminescent probes, and as a model system for studying the properties of lanthanide(III) ions. In solution, the photophysical properties have been mapped, but as the structures are not known, direct structure-property relationships have not been created. Here, the electronic properties of two Eu[DOTA] compounds (1 and 2) and a Eu[DOTA]-like compound (3) were studied using single-crystal luminescence spectroscopy. The donor set in the three compounds is identical (4N 4O 1O), and using the symmetry deviation value σideal it was shown that the coordination geometry is close to identical. Nevertheless, the electronic properties evaluated using the luminescence spectrum were found to differ significantly between the three compounds. The magnitude of the crystal field splitting was found not to scale with the symmetry of the coordination geometry. It was concluded that the donor set dictates the splitting, yet the structure-property relationships governing the electronic properties of europium(III) ions still elude us.
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Affiliation(s)
- Maria Storm Thomsen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - Helene Obel Bøch Andersen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - Thomas Just Sørensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
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16
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Holzapfel M, Baldau T, Kerpa S, Guadalupi G, Qi B, Liu Y, Parak WJ, Maison W. Solution Structure and Relaxivity of Ln‐DOTXAZA Derivatives. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Malte Holzapfel
- Fraunhofer Institute for Applied Polymer Research: Fraunhofer-Institut fur Angewandte Polymerforschung IAP Center for Applied Nanoscience GERMANY
| | - Torben Baldau
- Universität Hamburg: Universitat Hamburg Department of Chemistry GERMANY
| | - Svenja Kerpa
- Universität Hamburg: Universitat Hamburg Department of Chemistry GERMANY
| | | | - Bing Qi
- Universität Hamburg: Universitat Hamburg Center for Hybrid Nanostructure GERMANY
| | - Yang Liu
- Universität Hamburg: Universitat Hamburg Center for Hybrid Nanostructure GERMANY
| | - Wolfgang J. Parak
- Universität Hamburg: Universitat Hamburg Center for Hybrid Nanostructure GERMANY
| | - Wolfgang Maison
- University of Hamburg Chemistry Bundesstr. 45 20146 Hamburg GERMANY
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17
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Geng Y, Wu T, Han Q, Yang Y, Chen Z, Li X, Yin B, Zhou Y, Ling Y. Gadolinium-based contrast agents built of DO3A-pyridine scaffold: Precisely tuning carboxylate group for enhanced magnetic resonance imaging. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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China’s radiopharmaceuticals on expressway: 2014–2021. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2021-1137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This review provides an essential overview on the progress of rapidly-developing China’s radiopharmaceuticals in recent years (2014–2021). Our discussion reflects on efforts to develop potential, preclinical, and in-clinical radiopharmaceuticals including the following areas: (1) brain imaging agents, (2) cardiovascular imaging agents, (3) infection and inflammation imaging agents, (4) tumor radiopharmaceuticals, and (5) boron delivery agents (a class of radiopharmaceutical prodrug) for neutron capture therapy. Especially, the progress in basic research, including new radiolabeling methodology, is highlighted from a standpoint of radiopharmaceutical chemistry. Meanwhile, we briefly reflect on the recent major events related to radiopharmaceuticals along with the distribution of major R&D forces (universities, institutions, facilities, and companies), clinical study status, and national regulatory supports. We conclude with a brief commentary on remaining limitations and emerging opportunities for China’s radiopharmaceuticals.
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19
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Harriswangler C, Caneda-Martínez L, Rousseaux O, Esteban-Gómez D, Fougère O, Pujales-Paradela R, Valencia L, Fernández MI, Lepareur N, Platas-Iglesias C. Versatile Macrocyclic Platform for the Complexation of [ natY/ 90Y]Yttrium and Lanthanide Ions. Inorg Chem 2022; 61:6209-6222. [PMID: 35418232 PMCID: PMC9044452 DOI: 10.1021/acs.inorgchem.2c00378] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
We report a macrocyclic
ligand (H3L6) based
on a 3,6,10,13-tetraaza-1,8(2,6)-dipyridinacyclotetradecaphane
platform containing three acetate pendant arms and a benzyl group
attached to the fourth nitrogen atom of the macrocycle. The X-ray
structures of the YL6 and TbL6 complexes reveal nine coordination
of the ligand to the metal ions through the six nitrogen atoms of
the macrocycle and three oxygen atoms of the carboxylate pendants.
A combination of NMR spectroscopic studies (1H, 13C, and 89Y) and DFT calculations indicated that the structure
of the YL6 complex in the solid
state is maintained in an aqueous solution. The detailed study of
the emission spectra of the EuL6 and TbL6 complexes revealed
Ln3+-centered emission with quantum yields of 7.0 and 60%,
respectively. Emission lifetime measurements indicate that the ligand
offers good protection of the metal ions from surrounding water molecules,
preventing the coordination of water molecules. The YL6 complex is remarkably inert with respect to complex dissociation,
with a lifetime of 1.7 h in 1 M HCl. On the other hand, complex formation
is fast (∼1 min at pH 5.4, 2 × 10–5 M).
Studies using the 90Y-nuclide confirmed fast radiolabeling
since [90Y]YL6 is
nearly quantitatively formed (radiochemical yield (RCY) > 95) in
a
short time over a broad range of pH values from ca. 2.4 to 9.0. Challenging
experiments in the presence of excess ethylenediaminetetraacetic acid
(EDTA) and in human serum revealed good stability of the [90Y]YL6 complex. All of these
experiments combined suggest the potential application of H3L6 derivatives as Y-based radiopharmaceuticals. A new versatile asymmetric ligand based
on an 18-membered
macrocycle possessing three acetate pendant arms and a benzyl moiety
provides fast complexation with both natY(III) and 90Y(III), as well as slow dissociation kinetics. A detailed
structural study in the solid state and in solution evidences nona
coordination of the metal ion by the ligand, offering good protection
from solvent water molecules. These favorable properties make this
ligand an attractive candidate to develop yttrium-based radiopharmaceuticals.
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Affiliation(s)
- Charlene Harriswangler
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 Galicia, A Coruña, Spain
| | - Laura Caneda-Martínez
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 Galicia, A Coruña, Spain
| | - Olivier Rousseaux
- Groupe Guerbet, Centre de Recherche d'Aulnay-sous-Bois, BP 57400, 95943 Roissy CdG Cedex, France
| | - David Esteban-Gómez
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 Galicia, A Coruña, Spain
| | - Olivier Fougère
- Groupe Guerbet, Centre de Recherche d'Aulnay-sous-Bois, BP 57400, 95943 Roissy CdG Cedex, France
| | - Rosa Pujales-Paradela
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 Galicia, A Coruña, Spain
| | - Laura Valencia
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidade de Vigo, As Lagoas, Marcosende, 36310 Pontevedra, Spain
| | - M Isabel Fernández
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 Galicia, A Coruña, Spain
| | - Nicolas Lepareur
- Univ Rennes, Centre Eugène Marquis, Inrae, Inserm, Institut NUMECAN (Nutrition, Métabolismes et Cancer)─UMR_A 1341, UMR_S 1241, F-35000 Rennes, France
| | - Carlos Platas-Iglesias
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 Galicia, A Coruña, Spain
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20
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Mukthar NFM, Schley ND, Ung G. Strong Circularly Polarized Luminescence at 1550 nm from Enantiopure Molecular Erbium Complexes. J Am Chem Soc 2022; 144:6148-6153. [PMID: 35377146 DOI: 10.1021/jacs.2c01134] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Circularly polarized luminescence (CPL) in two subregions of the near-infrared (NIR) has been achieved. By leveraging the rigidity and diminishing detrimental vibrations of the heterobimetallic binolate complexes of erbium [(Binol)3ErNa3], species exhibiting an exceptionally high dissymmetry factor (|glum |) of 0.47 at 1550 nm were obtained. These erbium complexes are the first reported examples of CPL observed beyond 1200 nm. Analogous complexes of ytterbium and neodymium also exhibited strong CPL (|glum| = 0.17, 0.05, respectively) in a higher energy NIR window (800-1200 nm). All complexes exhibit high quantum yields (Er: 0.58%, Yb: 17%, Nd: 9.3%) and high BCPL values (Er: 57 M-1 cm-1, Yb: 379 M-1 cm-1, Nd: 29 M-1 cm-1). Because of their strong CPL emission in the telecom band (1550 nm), biologically relevant NIR emission window (800-1100 nm), and synthetic versatility, the complexes reported here could permit further promising developments in quantum communication technologies and biologically relevant sensors.
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Affiliation(s)
- Nishya F M Mukthar
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Nathan D Schley
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Gaël Ung
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
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21
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Rocchi P, Brichart-Vernos D, Lux F, Morfin I, David L, Rodriguez-Lafrasse C, Tillement O. A New Generation of Ultrasmall Nanoparticles Inducing Sensitization to Irradiation and Copper Depletion to Overcome Radioresistant and Invasive Cancers. Pharmaceutics 2022; 14:pharmaceutics14040814. [PMID: 35456648 PMCID: PMC9024746 DOI: 10.3390/pharmaceutics14040814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/23/2022] [Accepted: 03/29/2022] [Indexed: 12/29/2022] Open
Abstract
An emerging target to overcome cancer resistance to treatments is copper, which is upregulated in a wide variety of tumors and may be associated with cancer progression and metastases. The aim of this study was to develop a multimodal ultrasmall nanoparticle, CuPRiX, based on the clinical AGuIX nanoparticle made of the polysiloxane matrix on which gadolinium chelates are grafted. Such hybrid nanoparticles allow: (i) a localized depletion of copper in tumors to prevent tumor cell dissemination and metastasis formation and (ii) an increased sensitivity of the tumor to radiotherapy (RT) due to the presence of high Z gadolinium (Gd) atoms. CuPRiX nanoparticles are obtained by controlled acidification of AGuIX nanoparticles. They were evaluated in vitro on two cancer cell lines (lung and head and neck) using the scratch-wound assay and clonogenic cell survival assay. They were able to reduce cell migration and invasion and displayed radiosensitizing properties.
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Affiliation(s)
- Paul Rocchi
- Institut Lumière Matière, Université Claude Bernard Lyon 1CNRS UMR 5306, 69622 Villeurbanne, France; (P.R.); (D.B.-V.); (O.T.)
- NH TherAguix SA, 38240 Meylan, France
| | - Delphine Brichart-Vernos
- Institut Lumière Matière, Université Claude Bernard Lyon 1CNRS UMR 5306, 69622 Villeurbanne, France; (P.R.); (D.B.-V.); (O.T.)
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS 5822/IP2I, Univ. Lyon, Lyon 1 University, 69921 Oullins, France;
| | - François Lux
- Institut Lumière Matière, Université Claude Bernard Lyon 1CNRS UMR 5306, 69622 Villeurbanne, France; (P.R.); (D.B.-V.); (O.T.)
- Institut Universitaire de France (IUF), 75000 Paris, France
- Correspondence: ; Tel.: +33-4-72-43-12-00
| | - Isabelle Morfin
- LiPhy, Université Grenoble Alpes, CNRS, UMR UMR5588, 38401 Grenoble, France;
| | - Laurent David
- Ingénierie des Matériaux Polymères, Université de Lyon, Université Claude Bernard Lyon 1, Université Jean Monet, Institut National des Sciences Appliquées de Lyon, CNRS, UMR 5223, 15, bd A. Latarjet, 69622 Villeurbanne, France;
| | - Claire Rodriguez-Lafrasse
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS 5822/IP2I, Univ. Lyon, Lyon 1 University, 69921 Oullins, France;
- Department of Biochemistry and Molecular Biology, Lyon-Sud Hospital, Hospices Civils of Lyon, 69310 Pierre-Bénite, France
| | - Olivier Tillement
- Institut Lumière Matière, Université Claude Bernard Lyon 1CNRS UMR 5306, 69622 Villeurbanne, France; (P.R.); (D.B.-V.); (O.T.)
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22
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Yang G, Wang D, Phua SZF, Bindra AK, Qian C, Zhang R, Cheng L, Liu G, Wu H, Liu Z, Zhao Y. Albumin-Based Therapeutics Capable of Glutathione Consumption and Hydrogen Peroxide Generation for Synergetic Chemodynamic and Chemotherapy of Cancer. ACS NANO 2022; 16:2319-2329. [PMID: 35129953 DOI: 10.1021/acsnano.1c08536] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A nanoscale therapeutic system with good biocompatibility was facilely fabricated by the coassembly of human serum albumin and glucose oxidase (GOD), where the former was pretreated with metal ions through a chelating agent or the chemotherapeutic prodrug oxaliplatin (Oxa(IV)). Among different chelating metal ions used, Mn2+ ion was selected to produce hydroxyl radical (•OH) efficiently through Fenton-like reaction, while GOD loaded in the system was able to generate a large amount of hydrogen peroxide for promoting efficient conversion into highly toxic •OH. In the meanwhile, the conversion of the Oxa(IV) prodrug into chemotherapeutic Oxa(II) was beneficial for the consumption of glutathione, thereby enhancing the chemodynamic therapy (CDT) efficacy. Based on the combined chemotherapy and CDT, the treatment with this system leads to superior antitumor outcome.
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Affiliation(s)
- Guangbao Yang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Dongdong Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Soo Zeng Fiona Phua
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Anivind Kaur Bindra
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Cheng Qian
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Rui Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Guofeng Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Hongwei Wu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
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23
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Do QN, Lenkinski RE, Tircso G, Kovacs Z. How the Chemical Properties of GBCAs Influence Their Safety Profiles In Vivo. Molecules 2021; 27:58. [PMID: 35011290 PMCID: PMC8746842 DOI: 10.3390/molecules27010058] [Citation(s) in RCA: 6] [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: 11/29/2021] [Revised: 12/18/2021] [Accepted: 12/22/2021] [Indexed: 01/21/2023] Open
Abstract
The extracellular class of gadolinium-based contrast agents (GBCAs) is an essential tool for clinical diagnosis and disease management. In order to better understand the issues associated with GBCA administration and gadolinium retention and deposition in the human brain, the chemical properties of GBCAs such as relative thermodynamic and kinetic stabilities and their likelihood of forming gadolinium deposits in vivo will be reviewed. The chemical form of gadolinium causing the hyperintensity is an open question. On the basis of estimates of total gadolinium concentration present, it is highly unlikely that the intact chelate is causing the T1 hyperintensities observed in the human brain. Although it is possible that there is a water-soluble form of gadolinium that has high relaxitvity present, our experience indicates that the insoluble gadolinium-based agents/salts could have high relaxivities on the surface of the solid due to higher water access. This review assesses the safety of GBCAs from a chemical point of view based on their thermodynamic and kinetic properties, discusses how these properties influence in vivo behavior, and highlights some clinical implications regarding the development of future imaging agents.
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Affiliation(s)
- Quyen N. Do
- Department of Radiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA; (Q.N.D.); (R.E.L.)
| | - Robert E. Lenkinski
- Department of Radiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA; (Q.N.D.); (R.E.L.)
| | - Gyula Tircso
- Department of Physical Chemistry Debrecen, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary;
| | - Zoltan Kovacs
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA
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24
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Schettini R, D'Amato A, Araszczuk AM, Della Sala G, Costabile C, D'Ursi AM, Grimaldi M, Izzo I, De Riccardis F. Structural dynamism of chiral sodium peraza-macrocycle complexes derived from cyclic peptoids. Org Biomol Chem 2021; 19:7420-7431. [PMID: 34397051 DOI: 10.1039/d1ob00733e] [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: 11/21/2022]
Abstract
A variety of cyclen and hexacyclen derivatives decorated with (S)-1-phenylethyl side chains or (S)-pyrrolidine units have been prepared via a reductive approach from the corresponding cyclic peptoids containing N-(S)-(1-phenylethyl)glycine and l-proline residues. Spectroscopic and DFT studies on their Na+ complexes show that point chirality and ring size play a crucial role in controlling the structural dynamism of 1,2-diaminoethylene units and pendant arms. The detection of highly symmetric C4- and C3-symmetric metalated species demonstrates that a full understanding of the relationship between the structure and conformational properties of peraza-macrocyclic metal complexes is possible.
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Affiliation(s)
- Rosaria Schettini
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy. iizzo@unisa
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25
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Dai L, Zhang J, Wong CT, Chan WTK, Ling X, Anderson CJ, Law GL. Design of Functional Chiral Cyclen-Based Radiometal Chelators for Theranostics. Inorg Chem 2021; 60:7082-7088. [PMID: 33689299 DOI: 10.1021/acs.inorgchem.0c03734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of water-soluble chiral cyclen-based chelators with chemical handles for selective targeting have been synthesized (cyclen = 1,4,7,10-Tetraazacyclododecane). Optical studies, relaxivity measurements, and competitive titrations were performed to show the versatility of these chiral chelators. The complexations of L3, L4, and L5 with Lu3+, Y3+, Sc3+, and Cu2+ were successfully demonstrated in around 90% to 100% yields. Efficient and rapid radiolabeling of L5 with 177Lu was achieved under mild conditions with 96% yield. The chelators exhibit near quantitative labeling efficiencies with a wide range of radiometal ions, which are promising for the development of targeting specific radiopharmaceutical and molecular magnetic resonance imaging contrast agents.
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Affiliation(s)
- Lixiong Dai
- Department of Applied Biology and Chemical Technology, State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom 999077, Hong Kong SAR
| | - Junhui Zhang
- Department of Applied Biology and Chemical Technology, State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom 999077, Hong Kong SAR
| | - Carlos Tinlong Wong
- Department of Applied Biology and Chemical Technology, State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom 999077, Hong Kong SAR
| | - Wesley Ting Kwok Chan
- Department of Applied Biology and Chemical Technology, State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom 999077, Hong Kong SAR
| | - Xiaoxi Ling
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Carolyn J Anderson
- Departments of Medicine, Radiology, Pharmacology and Chemical Biology, Chemistry, and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States.,Departments of Chemistry and Radiology, University of Missouri, Columbia, Missouri 65211, United States
| | - Ga-Lai Law
- Department of Applied Biology and Chemical Technology, State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom 999077, Hong Kong SAR
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26
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Lee YS, Mou Z, Opina ACL, Vasalatiy O. Origin of the Isomer Stability of Polymethylated DOTA Chelates Complexed with Ln 3+ ions. Eur J Inorg Chem 2021; 2021:1428-1440. [PMID: 36591318 PMCID: PMC9802879 DOI: 10.1002/ejic.202100019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid)-based chelates that give only a single isomer in solution when complexed with lanthanide (Ln3+) ions is of value for studying protein dynamics and interactions via NMR. Herein, we have investigated the geometries, energetics, and electrostatic potentials of Lu complexed with DOTA (1), ring methylated M4DOTA (2), and arm methylated R-DOTMA (3) and S-DOTMA (4), as well as, both ring and arm methylated 4S-4S-M4DOTMA (5) and 4S-4R-M4DOTMA (6) at the level of M06-L/6-31+G(d)-SDD, to elucidate the origin of the isomer stability. These analyses indicate that the electrostatic repulsion between the arm methyl and the neighboring carboxylate significantly destabilizes the square antiprism (SAP) isomer of Lu-5 and the twisted square antiprism (TSAP) isomer of Lu-6, while the steric repulsion between the ring and arm methyl groups attenuates the stability of both TSAP of Lu-5 and SAP of Lu-6. To rationalize the variable temperature proton NMR spectra, the energy barriers for the inter-conversion in Lu-5 and Lu-6 via arm rotation were also calculated. The modulation of the stability and rigidity of Ln complexes via a modification of DOTA is also discussed. Our investigation will aid to design better chelates for the Ln3+ ions for its use in molecular medicine.
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Affiliation(s)
- Yong-Sok Lee
- Dr. Yong-Sok Lee, Dr. Zhongyu Mou Center for Molecular Modeling, Office of Intramural Research, Center for Information Technology, National Institutes of Health, Bethesda, MD 20892, United States,Present address: Bioinformatics and Computational Bioscience Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, United States
| | - Zhongyu Mou
- Dr. Yong-Sok Lee, Dr. Zhongyu Mou Center for Molecular Modeling, Office of Intramural Research, Center for Information Technology, National Institutes of Health, Bethesda, MD 20892, United States,Present address: Intramural Research Program, National Library of Medicine, National Institutes of Health, Bethesda, MD 20892, United States
| | - Ana Christina L. Opina
- Dr. Ana Christina L. Opina, Dr. Olga Vasalatiy Chemistry and Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Rockville, MD 20850, United States
| | - Olga Vasalatiy
- Dr. Ana Christina L. Opina, Dr. Olga Vasalatiy Chemistry and Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Rockville, MD 20850, United States
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27
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Zhang J, Dai L, Webster AM, Chan WTK, Mackenzie LE, Pal R, Cobb SL, Law G. Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Europium(III) Complexes. Angew Chem Int Ed Engl 2021; 60:1004-1010. [PMID: 32959961 PMCID: PMC7821146 DOI: 10.1002/anie.202012133] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Indexed: 12/20/2022]
Abstract
Chirality is ubiquitous within biological systems where many of the roles and functions are still undetermined. Given this, there is a clear need to design and develop sensitive chiral optical probes that can function within a biological setting. Here we report the design and synthesis of magnetically responsive Circularly Polarized Luminescence (CPL) complexes displaying exceptional photophysical properties (quantum yield up to 31 % and |glum | up to 0.240) by introducing chiral substituents onto the macrocyclic scaffolds. Magnetic CPL responses are observed in these chiral EuIII complexes, promoting an exciting development to the field of magneto-optics. The |glum | of the 5 D0 → 7 F1 transition increases by 20 % from 0.222 (0 T) to 0.266 (1.4 T) displaying a linear relationship between the Δglum and the magnetic field strength. These EuIII complexes with magnetic CPL responses, provides potential development to be used in CPL imaging applications due to improved sensitivity and resolution.
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Affiliation(s)
- Junhui Zhang
- Department of Applied Biology and Chemical TechnologyState Key Laboratory of Chemical Biology and Drug DiscoveryThe Hong Kong Polytechnic UniversityHung Hom, Hong Kong SARChina
- The Hong Kong Polytechnic University Shenzhen Research InstituteShenzhen518000P. R. China
| | - Lixiong Dai
- Department of Applied Biology and Chemical TechnologyState Key Laboratory of Chemical Biology and Drug DiscoveryThe Hong Kong Polytechnic UniversityHung Hom, Hong Kong SARChina
- The Hong Kong Polytechnic University Shenzhen Research InstituteShenzhen518000P. R. China
| | | | - Wesley Ting Kwok Chan
- Department of Applied Biology and Chemical TechnologyState Key Laboratory of Chemical Biology and Drug DiscoveryThe Hong Kong Polytechnic UniversityHung Hom, Hong Kong SARChina
| | | | - Robert Pal
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | - Steven L. Cobb
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | - Ga‐Lai Law
- Department of Applied Biology and Chemical TechnologyState Key Laboratory of Chemical Biology and Drug DiscoveryThe Hong Kong Polytechnic UniversityHung Hom, Hong Kong SARChina
- The Hong Kong Polytechnic University Shenzhen Research InstituteShenzhen518000P. R. China
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28
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Zhang J, Dai L, Webster AM, Chan WTK, Mackenzie LE, Pal R, Cobb SL, Law G. Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Europium(III) Complexes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Junhui Zhang
- Department of Applied Biology and Chemical Technology State Key Laboratory of Chemical Biology and Drug Discovery The Hong Kong Polytechnic University Hung Hom, Hong Kong SAR China
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000 P. R. China
| | - Lixiong Dai
- Department of Applied Biology and Chemical Technology State Key Laboratory of Chemical Biology and Drug Discovery The Hong Kong Polytechnic University Hung Hom, Hong Kong SAR China
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000 P. R. China
| | | | - Wesley Ting Kwok Chan
- Department of Applied Biology and Chemical Technology State Key Laboratory of Chemical Biology and Drug Discovery The Hong Kong Polytechnic University Hung Hom, Hong Kong SAR China
| | | | - Robert Pal
- Department of Chemistry Durham University South Road Durham DH1 3LE UK
| | - Steven L. Cobb
- Department of Chemistry Durham University South Road Durham DH1 3LE UK
| | - Ga‐Lai Law
- Department of Applied Biology and Chemical Technology State Key Laboratory of Chemical Biology and Drug Discovery The Hong Kong Polytechnic University Hung Hom, Hong Kong SAR China
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000 P. R. China
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29
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Bolzati C, Duatti A. The emerging value of 64Cu for molecular imaging and therapy. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF RADIOPHARMACEUTICAL CHEMISTRY AND BIOLOGY 2020; 64:329-337. [PMID: 33026210 DOI: 10.23736/s1824-4785.20.03292-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Along with other novel metallic radionuclides, copper-64 (64Cu) is currently being investigated as an alternative option to the gallium-68 (68Ga) and lutetium-177 (177Lu) radiopharmaceuticals widely used for targeting somatostatin receptors, expressed by neuroendocrine tumors (NETs), and recently prostate specific membrane antigen (PSMA), expressed by prostate cancer cells. This interest is mostly driven by the peculiar nuclear properties of 64Cu that make it an almost ideal example of theranostic radionuclide. In fact, 64Cu emits both low-energy positrons, β- particles and a swarm of Auger electrons. This combination of different emissions may allow to collect high-resolution PET images, but also to use the same radiopharmaceutical for eliciting a therapeutic effect. Another unique behavior of 64Cu originates from the fundamental biological role played in organisms by the ionic forms of the copper element, which is naturally involved in a multitude of cellular processes including cell replication. These intrinsic biological characteristics has led to the discovery that 64Cu, under its simplest dicationic form Cu2+, is able to specifically target a variety of cancerous cells and to detect the onset of a metastatic process in its initial stage. This short review reports an outline of the status of 64Cu radiopharmaceuticals and of the most relevant results that are constantly disclosed by preclinical and investigational clinical studies.
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Affiliation(s)
| | - Adriano Duatti
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy -
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30
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Chiral Separation of rac-Propylene Oxide on Penicillamine Coated Gold NPs. NANOMATERIALS 2020; 10:nano10091716. [PMID: 32872573 PMCID: PMC7559212 DOI: 10.3390/nano10091716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/06/2020] [Accepted: 08/20/2020] [Indexed: 01/31/2023]
Abstract
The surfaces of chemically synthesized spherical gold NPs (Au-NPs) have been modified using chiral L- or D-penicillamine (Pen) in order to impart enantioselective adsorption properties. These chiral Au-NPs have been used to demonstrate enantioselective adsorption of racemic propylene oxide (PO) from aqueous solution. In the past we have studied enantioselective adsorption of racemic PO on L- or D-cysteine (Cys)-coated Au-NPs. This prior work suggested that adsorption of PO on Cys-coated Au-NPs equilibrates within an hour. In this work, we have studied the effect of time on the enantioselective adsorption of racemic PO from solution onto chiral Pen/Au-NPs. Enantioselective adsorption of PO on chiral Pen/Au-NPs is time-dependent but reaches a steady state after ~18 h at room temperature. More importantly, L- or D-Pen/Au-NPs are shown to adsorb R- or S-PO enantiospecifically and to separate the two PO enantiomers from racemic mixtures of RS-PO.
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31
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Lee E, Okazaki C, Tenma H, Hosoi Y, Ju H, Ikeda M, Kuwahara S, Habata Y. Argentivorous Molecules Exhibiting Highly Selective Silver(I) Chiral Enhancement. Inorg Chem 2020; 59:13435-13441. [DOI: 10.1021/acs.inorgchem.0c01819] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | - Mari Ikeda
- Education Center, Faculty of Engineering, Chiba Institute of Technology, 2-1-1 Shibazono, Narashino, Chiba 275-0023, Japan
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32
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Tosato M, Asti M, Dalla Tiezza M, Orian L, Häussinger D, Vogel R, Köster U, Jensen M, Andrighetto A, Pastore P, Marco VD. Highly Stable Silver(I) Complexes with Cyclen-Based Ligands Bearing Sulfide Arms: A Step Toward Silver-111 Labeled Radiopharmaceuticals. Inorg Chem 2020; 59:10907-10919. [PMID: 32658468 PMCID: PMC8009516 DOI: 10.1021/acs.inorgchem.0c01405] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
With a half-life of 7.45 days, silver-111 (βmax 1.04 MeV, Eγ 245.4 keV [Iγ 1.24%], Eγ 342.1 keV [Iγ 6.7%]) is a promising candidate for targeted cancer therapy with β- emitters as well as for associated SPECT imaging. For its clinical use, the development of suitable ligands that form sufficiently stable Ag+-complexes in vivo is required. In this work, the following sulfur-containing derivatives of tetraazacyclododecane (cyclen) have been considered as potential chelators for silver-111: 1,4,7,10-tetrakis(2-(methylsulfanyl)ethyl)-1,4,7,10-tetraazacyclododecane (DO4S), (2S,5S,8S,11S)-2,5,8,11-tetramethyl-1,4,7,10-tetrakis(2-(methylsulfanyl)ethyl)-1,4,7,10-tetraazacyclododecane (DO4S4Me), 1,4,7-tris(2-(methylsulfanyl)ethyl)-1,4,7,10-tetraazacyclododecane (DO3S), 1,4,7-tris(2-(methylsulfanyl)ethyl)-10-acetamido-1,4,7,10-tetraazacyclododecane (DO3SAm), and 1,7-bis(2-(methylsulfanyl)ethyl)-4,10,diacetic acid-1,4,7,10-tetraazacyclododecane (DO2A2S). Natural Ag+ was used in pH/Ag-potentiometric and UV-vis spectrophotometric studies to determine the metal speciation existing in aqueous NaNO3 0.15 M at 25 °C and the equilibrium constants of the complexes, whereas NMR and DFT calculations gave structural insights. Overall results indicated that sulfide pendant arms coordinate Ag+ allowing the formation of very stable complexes, both at acidic and physiological pH. Furthermore, radiolabeling, stability in saline phosphate buffer, and metal-competition experiments using the two ligands forming the strongest complexes, DO4S and DO4S4Me, were carried out with [111Ag]Ag+ and promising results were obtained.
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Affiliation(s)
- Marianna Tosato
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Mattia Asti
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, AUSL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42122 Reggio Emilia, Italy
| | - Marco Dalla Tiezza
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Laura Orian
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Daniel Häussinger
- Department of Chemistry, University of Basel, St. Johannsring 19, 4056, Basel, Switzerland
| | - Raphael Vogel
- Department of Chemistry, University of Basel, St. Johannsring 19, 4056, Basel, Switzerland
| | - Ulli Köster
- Institut Laue-Langevin, 71 avenue des Martyrs CS 20156, 38042 Grenoble Cedex 9, France
| | - Mikael Jensen
- The Hevesy Laboratory, Department Health Technology, Technical University of Denmark (DTU), Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Alberto Andrighetto
- Italian Institute of Nuclear Physics, Legnaro National Laboratories, Viale dell'Università 2, 35020 Legnaro (Padova), Italy
| | - Paolo Pastore
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Valerio Di Marco
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
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33
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Webber BC, Payne KM, Rust LN, Cassino C, Carniato F, McCormick T, Botta M, Woods M. Analysis of the Relaxometric Properties of Extremely Rapidly Exchanging Gd 3+ Chelates: Lessons from a Comparison of Four Isomeric Chelates. Inorg Chem 2020; 59:9037-9046. [PMID: 32536158 DOI: 10.1021/acs.inorgchem.0c00905] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Relaxometric analyses and in particular the use of fast-field cycling techniques have become routine in the study of paramagnetic metal complexes. The field dependence of the solvent proton relaxation properties (nuclear magnetic relaxation dispersion, NMRD) can provide unparalleled insights into the chemistry of these complexes. However, analyzing NMRD data is a multiparametric problem, and some sets of variables are mutually compensatory. Specifically, when fitting NMRD profiles, the metal-proton distance and the rotational correlation time constant have a push-pull relationship in which a change to one causes a predictable compensation in the other. A relaxometric analysis of four isomeric chelates highlights the pitfalls that await when fitting the NMRD profiles of chelates for which dissociative water exchange is extremely rapid. In the absence of independently verified values for one of these parameters, NMRD profiles can be fitted to multiple parameter sets. This means that NMRD fitting can inadvertently be used to buttress a preconceived notion of how the complex should behave when a different parameter set may more accurately describe the actual behavior. These findings explain why the effect of very rapid dissociative exchange on the hydration state of Gd3+ has remained obscured until only recently.
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Affiliation(s)
- Benjamin C Webber
- Department of Chemistry, Portland State University, 1719 SW 10th Avenue, Portland, Oregon 97201, United States
| | - Katherine M Payne
- Department of Chemistry, Portland State University, 1719 SW 10th Avenue, Portland, Oregon 97201, United States
| | - Lauren N Rust
- Department of Chemistry, Portland State University, 1719 SW 10th Avenue, Portland, Oregon 97201, United States
| | - Claudio Cassino
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro″, Viale T. Michel 11, I-15121 Alessandria, Italy
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro″, Viale T. Michel 11, I-15121 Alessandria, Italy
| | - Theresa McCormick
- Department of Chemistry, Portland State University, 1719 SW 10th Avenue, Portland, Oregon 97201, United States
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro″, Viale T. Michel 11, I-15121 Alessandria, Italy
| | - Mark Woods
- Department of Chemistry, Portland State University, 1719 SW 10th Avenue, Portland, Oregon 97201, United States.,Advanced Imaging Research Center, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
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Relaxometric Studies of Gd-Chelate Conjugated on the Surface of Differently Shaped Gold Nanoparticles. NANOMATERIALS 2020; 10:nano10061115. [PMID: 32516931 PMCID: PMC7353348 DOI: 10.3390/nano10061115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 05/29/2020] [Accepted: 06/02/2020] [Indexed: 01/13/2023]
Abstract
Nowadays, magnetic resonance imaging (MRI) is one of the key, noninvasive modalities to detect and stage cancer which benefits from contrast agents (CA) to differentiate healthy from tumor tissue. An innovative class of MRI CAs is represented by Gd-loaded gold nanoparticles. The size, shape and chemical functionalization of Gd-loaded gold nanoparticles appear to affect the observed relaxation enhancement of water protons in their suspensions. The herein reported results shed more light on the determinants of the relaxation enhancement brought by Gd-loaded concave cube gold nanoparticles (CCGNPs). It has been found that, in the case of nanoparticles endowed with concave surfaces, the relaxivity is remarkably higher compared to the corresponding spherical (i.e., convex) gold nanoparticles (SPhGNPs). The main determinant for the observed relaxation enhancement is represented by the occurrence of a large contribution from second sphere water molecules which can be exploited in the design of high-efficiency MRI CA.
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35
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Gadolinium Complexes as Contrast Agent for Cellular NMR Spectroscopy. Int J Mol Sci 2020; 21:ijms21114042. [PMID: 32516957 PMCID: PMC7312942 DOI: 10.3390/ijms21114042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/27/2020] [Accepted: 06/03/2020] [Indexed: 02/07/2023] Open
Abstract
Aqua Gd3+ and Gd-DOTA (gadolinium-1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacete) complexes were studied as a contrast agent in cellular NMR (nuclear magnetic resonance) spectroscopy for distinguishing between intracellular and extracellular spaces. The contrast agents for this purpose should provide strong paramagnetic relaxation enhancement and localize in the extracellular space without disturbing biological functions. Cell membrane permeability to Gd complexes was evaluated from the concentrations of gadolinium complexes in the inside and outside of E. coli cells measured by the 1H-NMR relaxation. The site-specific binding of the complexes to E. coli cells was also analyzed by high-resolution solid-state 13C-NMR. The aqua Gd3+ complex did not enhance T1 relaxation in proportion to the amount of added Gd3+. This Gd3+ concentration dependence and the 13C-NMR indicated that its strong cytotoxicity should be due to the binding of the paramagnetic ions to cellular components especially at the lipid membranes. In contrast, Gd-DOTA stayed in the solution states and enhanced relaxation in proportion to the added amount. This agent exhibited strong T1 contrast between the intra- and extracellular spaces by a factor of ten at high concentrations under which the cells were viable over a long experimental time of days. These properties make Gd-DOTA suitable for selectively contrasting the living cellular space in NMR spectroscopy primarily owing to its weak interaction with cellular components.
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36
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Wydra K, Kobyłka MJ, Lis T, Ślepokura K, Lisowski J. Versatile Binding Modes of Chiral Macrocyclic Amine towards Rare Earth Ions. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Karol Wydra
- Department of Chemistry University of Wrocław 14 F. Joliot‐Curie 50‐383 Wrocław Poland
| | - Michał J. Kobyłka
- Department of Chemistry University of Wrocław 14 F. Joliot‐Curie 50‐383 Wrocław Poland
| | - Tadeusz Lis
- Department of Chemistry University of Wrocław 14 F. Joliot‐Curie 50‐383 Wrocław Poland
| | - Katarzyna Ślepokura
- Department of Chemistry University of Wrocław 14 F. Joliot‐Curie 50‐383 Wrocław Poland
| | - Jerzy Lisowski
- Department of Chemistry University of Wrocław 14 F. Joliot‐Curie 50‐383 Wrocław Poland
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37
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Yu M, Xie D, Kadakia RT, Wang W, Que EL. Harnessing chemical exchange: 19F magnetic resonance OFF/ON zinc sensing with a Tm(iii) complex. Chem Commun (Camb) 2020; 56:6257-6260. [PMID: 32373870 DOI: 10.1039/d0cc01876g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A fluorinated, thulium(iii) complex (Tm-PFZ-1) serves as an off-on 19F magnetic resonance probe for Zn(ii). Rapid exchange among different conformations combined with paramagnetic relaxation and chemical shift effects of Tm(iii) effectively eliminate the 19F NMR/MRI signal in Tm-PFZ-1. Chelation of Zn(ii) induces increased structural rigidity and reduces exchange rate, affording a robust 19F NMR/MRI signal. Tm-PFZ-1 represents a first-in-class paramagnetic 19F MR agent that exploits a novel sensing mechanism for Zn(ii) and is the first 19F MR-based scaffold to provide an "off-on" response to Zn(ii) in aqueous solution.
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Affiliation(s)
- Meng Yu
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th St Stop A5300, Austin, Texas 78712, USA.
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38
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Tear LR, Carrera C, Gianolio E, Aime S. Towards an Improved Design of MRI Contrast Agents: Synthesis and Relaxometric Characterisation of Gd-HPDO3A Analogues. Chemistry 2020; 26:6056-6063. [PMID: 32133687 DOI: 10.1002/chem.202000479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/02/2020] [Indexed: 11/10/2022]
Abstract
The properties of LnIII -HPDO3A complexes as relaxation enhancers and paraCEST agents are essentially related to the hydroxylpropyl moiety. A series of three HPDO3A derivatives, with small modifications to the hydroxyl arm, were herein investigated to understand how heightened control can be gained over the parameters involved in the design of these agents. A full 1 H and 17 O-NMR relaxometric analysis was conducted and demonstrated that increasing the length of the OH group from the lanthanide centre significantly enhanced the water exchange rate of the gadolinium complex, but with a subsequent reduction in kinetic stability. Alternatively, the introduction of an additional methyl group, which increased the steric bulk around the OH moiety, resulted in the formation of almost exclusively the TSAP isomer (95 %) as identified by 1 H-NMR of the europium complex. The gadolinium analogue of this complex also exhibited a very fast water exchange rate, but with no detectable loss of kinetic stability. This complex therefore demonstrates a notable improvement over Gd-HPDO3A.
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Affiliation(s)
- Louise R Tear
- Department of Molecular Biotechnology and Health Sciences, Molecular Imaging Centre, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Carla Carrera
- Institute of Biostructures and Bioimaging, National Research Council, Via Nizza 52, 10126, Torino, Italy
| | - Eliana Gianolio
- Department of Molecular Biotechnology and Health Sciences, Molecular Imaging Centre, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Silvio Aime
- Department of Molecular Biotechnology and Health Sciences, Molecular Imaging Centre, University of Torino, Via Nizza 52, 10126, Torino, Italy
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39
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Abstract
Bioconjugation of biologically useful proteins is in great demand (e.g., conjugation to biotins, metal chelators, and drug carriers to target specific tissues for both in vitro and in vivo use). These conjugates provide widespread opportunities for various biological and biomedical applications. Evolving state-of-the-art protein conjugation strategies have led to the development of many affinity ligands, including for cancer imaging and diagnosis. However, to achieve the desirable protein conjugates, there are many challenges that remain to be addressed in order to obtain a reproducible procedure for all proteins and ligands. These include a control over the protein modification and the efficiency of the conjugation while retaining the original biological protein affinity postmodification. Here we present detailed conjugation methods for the human fibronectin tenth type III domain (FN3) protein scaffold for use in preclinical PET imaging. More specifically, this chapter provides detailed methods to produce a FN3 and a FN3-chelator-conjugate, its labeling with the radionuclide 64-Cu, and its use for noninvasive PET imaging in mice.
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Affiliation(s)
- Arutselvan Natarajan
- Department of Radiology, James H. Clark Center, Stanford University, Stanford, CA, USA.
| | - Lotfi Abou-Elkacem
- Department of Radiology, James H. Clark Center, Stanford University, Stanford, CA, USA
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40
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Zhao X, Zang SQ, Chen X. Stereospecific interactions between chiral inorganic nanomaterials and biological systems. Chem Soc Rev 2020; 49:2481-2503. [DOI: 10.1039/d0cs00093k] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chirality is ubiquitous in nature and plays mysterious and essential roles in maintaining key biological and physiological processes.
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Affiliation(s)
- Xueli Zhao
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | | | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine
- National Institute of Biomedical Imaging and Bioengineering
- National Institutes of Health
- Bethesda
- USA
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41
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Sun C, Lin H, Gong X, Yang Z, Mo Y, Chen X, Gao J. DOTA-Branched Organic Frameworks as Giant and Potent Metal Chelators. J Am Chem Soc 2019; 142:198-206. [PMID: 31823608 DOI: 10.1021/jacs.9b09269] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Multinuclear complexes as metallo-agents for clinical use have caught extensive attention. In this paper, using 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) as both a functioning unit and a constructing junction, we build a series of DOTA-branched organic frameworks with multiple chelating holes by organizing DOTA layer by layer. These giant chelators are well characterized, which reveals their nanosized and soft structures. Further experiments demonstrate that they could efficiently hold abundant metal ions with much higher kinetic stabilities than the conventional small DOTA chelator. Their corresponding polynuclear complexes containing Gd3+, Tb3+, or both show superior imaging properties, excellent feasibility for peripheral modification, and unusual kinetic stability. This work can be easily extended to the fabrication of diverse homomultinuclear complexes and core/shell heteromultinuclear complexes with multifunctional properties. We expect that this new type of giant molecules and the ligand-branching strategy would open up a new avenue for the design and construction of next-generation polymetallic agents with high performance and stabilities for biomedical applications.
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Affiliation(s)
- Chengjie Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Hongyu Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Xuanqing Gong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Zhaoxuan Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Yan Mo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering , National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Jinhao Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
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42
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Baranyai Z, Tircsó G, Rösch F. The Use of the Macrocyclic Chelator DOTA in Radiochemical Separations. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900706] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zsolt Baranyai
- Bracco Research Centre Bracco Imaging spa Via Ribes 5 10010 Colleretto Giacosa (TO) Italy
| | - Gyula Tircsó
- Department of Physical Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen 4032 Hungary
| | - Frank Rösch
- Institute of Nuclear Chemistry Johannes Gutenberg‐University of Mainz Fritz‐Strassmann‐Weg 2 55128 Mainz Germany
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43
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Nielsen LG, Sørensen TJ. Including and Declaring Structural Fluctuations in the Study of Lanthanide(III) Coordination Chemistry in Solution. Inorg Chem 2019; 59:94-105. [DOI: 10.1021/acs.inorgchem.9b01571] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lea Gundorff Nielsen
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
| | - Thomas Just Sørensen
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
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44
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Szkop M, Brygoła K, Janczewska M, Ciach T. A simple time-resolved fluorescence assay for quantitative determination of DOTA chelator. Anal Biochem 2019; 584:113384. [PMID: 31356774 DOI: 10.1016/j.ab.2019.113384] [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: 03/11/2019] [Revised: 07/14/2019] [Accepted: 07/25/2019] [Indexed: 01/01/2023]
Abstract
DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetate) is one of the preeminent metal chelator applied for diagnostic and therapeutic purposes, however to date there is no versatile and reliable nonradioisotopic method for its precise determination. In this technical note, we present a novel and sensitive fluorimetric assay for quantitative determination of DOTA based on the luminescence quenching of the highly luminescent europium ions complex with trioctyl phosphine oxide and naphthoyl trifluoroacetone sensitizing activators. The assay is carried out in two simple steps and enables the determination of DOTA in the nanomolar range providing a superior tool compared to commonly applied spectrophotometric assay with Arsenazo-III reagent.
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Affiliation(s)
- Michał Szkop
- NanoThea Inc., Waryńskiego 1, 00-645, Warsaw, Poland.
| | - Kamil Brygoła
- NanoThea Inc., Waryńskiego 1, 00-645, Warsaw, Poland
| | | | - Tomasz Ciach
- NanoThea Inc., Waryńskiego 1, 00-645, Warsaw, Poland; Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645, Warsaw, Poland
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45
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Dai L, Zhang J, Chen Y, Mackenzie LE, Pal R, Law GL. Synthesis of Water-Soluble Chiral DOTA Lanthanide Complexes with Predominantly Twisted Square Antiprism Isomers and Circularly Polarized Luminescence. Inorg Chem 2019; 58:12506-12510. [PMID: 31490674 DOI: 10.1021/acs.inorgchem.9b01799] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One-step cyclization of a tetraazamacrocycle 5 with 70% yield in a 25-g scale was performed. Its chiral DOTA derivatives, L4, has ∼93% of TSAP coordination isomer in its Eu(III) and Yb(III) complexes in aqueous solution. [GdL4]5- exhibits a high relaxivity, making it a promising and efficient MRI contrast agent. High luminescence dissymmetry factor (glum) values of 0.285 (ΔJ = 1) for [TbL3]- and 0.241 (ΔJ = 1) for [TbL4]5- in buffer solutions were recorded.
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Affiliation(s)
- Lixiong Dai
- The Hong Kong Polytechnic University Shenzhen Research Institute , Shenzhen 518000 , People's Republic of China.,State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong SAR , China
| | - Junhui Zhang
- The Hong Kong Polytechnic University Shenzhen Research Institute , Shenzhen 518000 , People's Republic of China.,State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong SAR , China
| | - Yuqing Chen
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong SAR , China
| | - Lewis E Mackenzie
- Department of Chemistry , Durham University , South Road , Durham DH1 3LE , United Kingdom
| | - Robert Pal
- Department of Chemistry , Durham University , South Road , Durham DH1 3LE , United Kingdom
| | - Ga-Lai Law
- The Hong Kong Polytechnic University Shenzhen Research Institute , Shenzhen 518000 , People's Republic of China.,State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong SAR , China
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46
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Joss D, Bertrams M, Häussinger D. A Sterically Overcrowded, Isopropyl‐Substituted, Lanthanide‐Chelating Tag for Protein Pseudocontact Shift NMR Spectroscopy: Synthesis of its Macrocyclic Scaffold and Benchmarking on Ubiquitin S57 C and hCA II S166 C. Chemistry 2019; 25:11910-11917. [DOI: 10.1002/chem.201901692] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/27/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Daniel Joss
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Maria‐Sophie Bertrams
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Daniel Häussinger
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
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47
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Khannam M, Sahoo SK, Mukherjee C. Effect of Ligand Chirality and Hyperconjugation on the Thermodynamic Stability of a Tris(aquated) GdIII
Complex: Synthesis, Characterization, and T
1
-Weighted Phantom MR Image Study. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mahmuda Khannam
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati Assam India
| | - Suban K. Sahoo
- Department of Applied Chemistry; S.V. National Institute of Technology; 395007 Surat Gujarat India
| | - Chandan Mukherjee
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati Assam India
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48
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Clough TJ, Jiang L, Wong KL, Long NJ. Ligand design strategies to increase stability of gadolinium-based magnetic resonance imaging contrast agents. Nat Commun 2019; 10:1420. [PMID: 30926784 PMCID: PMC6441101 DOI: 10.1038/s41467-019-09342-3] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/20/2018] [Indexed: 01/08/2023] Open
Abstract
Gadolinium(III) complexes have been widely utilised as magnetic resonance imaging (MRI) contrast agents for decades. In recent years however, concerns have developed about their toxicity, believed to derive from demetallation of the complexes in vivo, and the relatively large quantities of compound required for a successful scan. Recent efforts have sought to enhance the relaxivity of trivalent gadolinium complexes without sacrificing their stability. This review aims to examine the strategic design of ligands synthesised for this purpose, provide an overview of recent successes in gadolinium-based contrast agent development and assess the requirements for clinical translation.
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Affiliation(s)
- Thomas J Clough
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK
| | - Lijun Jiang
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Ka-Leung Wong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China.
| | - Nicholas J Long
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK.
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49
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Wahsner J, Gale EM, Rodríguez-Rodríguez A, Caravan P. Chemistry of MRI Contrast Agents: Current Challenges and New Frontiers. Chem Rev 2019; 119:957-1057. [PMID: 30350585 PMCID: PMC6516866 DOI: 10.1021/acs.chemrev.8b00363] [Citation(s) in RCA: 832] [Impact Index Per Article: 166.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Tens of millions of contrast-enhanced magnetic resonance imaging (MRI) exams are performed annually around the world. The contrast agents, which improve diagnostic accuracy, are almost exclusively small, hydrophilic gadolinium(III) based chelates. In recent years concerns have arisen surrounding the long-term safety of these compounds, and this has spurred research into alternatives. There has also been a push to develop new molecularly targeted contrast agents or agents that can sense pathological changes in the local environment. This comprehensive review describes the state of the art of clinically approved contrast agents, their mechanism of action, and factors influencing their safety. From there we describe different mechanisms of generating MR image contrast such as relaxation, chemical exchange saturation transfer, and direct detection and the types of molecules that are effective for these purposes. Next we describe efforts to make safer contrast agents either by increasing relaxivity, increasing resistance to metal ion release, or by moving to gadolinium(III)-free alternatives. Finally we survey approaches to make contrast agents more specific for pathology either by direct biochemical targeting or by the design of responsive or activatable contrast agents.
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Affiliation(s)
- Jessica Wahsner
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Eric M. Gale
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Aurora Rodríguez-Rodríguez
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Peter Caravan
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
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50
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Müntener T, Thommen F, Joss D, Kottelat J, Prescimone A, Häussinger D. Synthesis of chiral nine and twelve-membered cyclic polyamines from natural building blocks. Chem Commun (Camb) 2019; 55:4715-4718. [DOI: 10.1039/c9cc00720b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A rational strategy for the facile and efficient cyclization of amino acid-based linear precursors forming nine and twelve-membered cyclic peptidomimetics is reported.
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Affiliation(s)
- Thomas Müntener
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
| | | | - Daniel Joss
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
| | - Jérémy Kottelat
- School of Engineering and Architecture of Fribourg
- 1705 Fribourg
- Switzerland
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