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Sung B, Kim HK, Baek AR, Yang BW, Kim YH, Choi G, Park HJ, Kim M, Lee J, Chang Y. Nonsteroidal Anti-Inflammatory Drug Conjugated with Gadolinium (III) Complex as an Anti-Inflammatory MRI Agent. Int J Mol Sci 2023; 24:ijms24076870. [PMID: 37047841 PMCID: PMC10095586 DOI: 10.3390/ijms24076870] [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: 03/09/2023] [Revised: 04/04/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023] Open
Abstract
Studies have been actively conducted to ensure that gadolinium-based contrast agents for magnetic resonance imaging (MRI) are accompanied by various biological functions. A new example is the anti-inflammatory theragnostic MRI agent to target inflammatory mediators for imaging diagnosis and to treat inflammatory diseases simultaneously. We designed, synthesized, and characterized a Gd complex of 1,4,7-tris(carboxymethylaza) cyclododecane-10-azaacetylamide (DO3A) conjugated with a nonsteroidal anti-inflammatory drug (NSAID) that exerts the innate therapeutic effect of NSAIDs and is also applicable in MRI diagnostics. Gd-DO3A-fen (0.1 mmol/kg) was intravenously injected into the turpentine oil-induced mouse model, with Gd-DO3A-BT as a control group. In the in vivo MRI experiment, the contrast-to-noise ratio (CNR) was higher and persisted longer than that with Gd-DO3A-BT; specifically, the CNR difference was almost five times at 2 h after injection. Gd-DO3A-fen had a binding affinity (Ka) of 6.68 × 106 M-1 for the COX-2 enzyme, which was 2.1-fold higher than that of fenbufen, the original NSAID. In vivo evaluation of anti-inflammatory activity was performed in two animal models. In the turpentine oil-induced model, the mRNA expression levels of inflammatory parameters such as COX-2, TNF-α, IL-1β, and IL-6 were reduced, and in the carrageenan-induced edema model, swelling was suppressed by 72% and there was a 2.88-fold inhibition compared with the saline group. Correlation analysis between in vitro, in silico, and in vivo studies revealed that Gd-DO3A-fen acts as an anti-inflammatory theragnostic agent by directly binding to COX-2.
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Affiliation(s)
- Bokyung Sung
- Department of Medical & Biological Engineering, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea
| | - Hee-Kyung Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation (K-MEDI hub), Dong-gu, Daegu 41061, Republic of Korea
| | - Ah-Rum Baek
- Institute of Biomedical Engineering Research, Kyungpook National University, Jung-gu, Daegu 41566, Republic of Korea
| | - Byeong-Woo Yang
- Department of Medical & Biological Engineering, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea
| | - Yeoun-Hee Kim
- R&D Center, Etnova Therapeutics Corp., Gwonseon-gu, Suwon-si 13120, Republic of Korea
| | - Garam Choi
- R&D Center, Etnova Therapeutics Corp., Gwonseon-gu, Suwon-si 13120, Republic of Korea
| | - Hyun-Jin Park
- R&D Center, Etnova Therapeutics Corp., Gwonseon-gu, Suwon-si 13120, Republic of Korea
| | - Minsup Kim
- Department of Biotechnology and Bioinformatics, Korea University Sejong Campus, 2511 Sejong-ro, Sejong City 30019, Republic of Korea
| | - Jongmin Lee
- Department of Radiology, Kyungpook National University Hospital, Jung-gu, Daegu 41944, Republic of Korea
| | - Yongmin Chang
- Department of Radiology, Kyungpook National University Hospital, Jung-gu, Daegu 41944, Republic of Korea
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea
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Martinez P, Nault G, Steiner J, Wempe MF, Pierce A, Brunt B, Slade M, Mongin A, Song J, Song KH, Ellens N, Serkova N, Green A, Borden M. MRI-Guided Focused Ultrasound Blood-Brain Barrier Opening Increases Drug Delivery and Efficacy in a Diffuse Midline Glioma Mouse Model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.05.534448. [PMID: 37066205 PMCID: PMC10104021 DOI: 10.1101/2023.04.05.534448] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Diffuse intrinsic pontine glioma (DIPG) is the most common and deadliest pediatric brainstem tumor and is difficult to treat with chemotherapy in part due to the blood-brain barrier (BBB). Focused ultrasound (FUS) and microbubbles (MBs) have been shown to cause BBB disruption (BBBD), allowing larger chemotherapeutics to enter the parenchyma. Panobinostat is an example of a promising in vitro agent in DIPG with poor clinical efficacy due to low BBB penetrance. In this study, we hypothesized that using FUS to disrupt the BBB allows higher concentrations of panobinostat to accumulate in the tumor, providing a therapeutic effect. Mice were orthotopically injected with a patient-derived DMG cell line, BT-245. MRI was used to guide FUS/MB (1.5 MHz, 0.615 MPa PNP, 1 Hz PRF, 10 ms PL, 3 min treatment time) / (25 µL/kg, IV) targeting to the tumor location. In animals receiving panobinostat (10 mg/kg, IP) in combination with FUS/MB, a 3-fold increase in tumor panobinostat concentration was observed, with only insignificant increase of the drug in the forebrain. In mice receiving three weekly treatments, the combination of panobinostat and FUS/MB led to a 71% reduction of tumor volumes by MRI ( p = 0.01). Furthermore, FUS/MB improved the mean survival from 21 to 31 days ( p < 0.0001). Our study demonstrates that FUS-mediated BBBD can increase the delivery of panobinostat to an orthotopic DMG tumor, providing a strong therapeutic effect and increased survival. One Sentence Summary FUS and microbubbles can increase the delivery of panobinostat to a patient-derived xenograft (PDX) orthotopic DMG tumor, providing a strong therapeutic effect and increased survival.
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Martinez P, Nault G, Steiner J, Wempe MF, Pierce A, Brunt B, Slade M, Song JJ, Mongin A, Song KH, Ellens N, Serkova N, Green AL, Borden M. MRI-guided focused ultrasound blood-brain barrier opening increases drug delivery and efficacy in a diffuse midline glioma mouse model. Neurooncol Adv 2023; 5:vdad111. [PMID: 37795179 PMCID: PMC10547466 DOI: 10.1093/noajnl/vdad111] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023] Open
Abstract
Background Diffuse intrinsic pontine glioma (DIPG) is the most common and deadliest pediatric brainstem tumor and is difficult to treat with chemotherapy in part due to the blood-brain barrier (BBB). Focused ultrasound (FUS) and microbubbles (MBs) have been shown to cause BBB opening, allowing larger chemotherapeutics to enter the parenchyma. Panobinostat is an example of a promising in vitro agent in DIPG with poor clinical efficacy due to low BBB penetrance. In this study, we hypothesized that using FUS to disrupt the BBB allows higher concentrations of panobinostat to accumulate in the tumor, providing a therapeutic effect. Methods Mice were orthotopically injected with a patient-derived diffuse midline glioma (DMG) cell line, BT245. MRI was used to guide FUS/MB (1.5 MHz, 0.615 MPa peak negative pressure, 1 Hz pulse repetition frequency, 10-ms pulse length, 3 min treatment time)/(25 µL/kg, i.v.) targeting to the tumor location. Results In animals receiving panobinostat (10 mg/kg, i.p.) in combination with FUS/MB, a 3-fold increase in tumor panobinostat concentration was observed, without significant increase of the drug in the forebrain. In mice receiving 3 weekly treatments, the combination of panobinostat and FUS/MB led to a 71% reduction of tumor volumes (P = .01). Furthermore, we showed the first survival benefit from FUS/MB improved delivery increasing the mean survival from 21 to 31 days (P < .0001). Conclusions Our study demonstrates that FUS-mediated BBB disruption can increase the delivery of panobinostat to an orthotopic DMG tumor, providing a strong therapeutic effect and increased survival.
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Affiliation(s)
- Payton Martinez
- Biomedical Engineering Program, University of Colorado Boulder, Boulder, Colorado, USA
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Genna Nault
- Department of Radiology, Animal Imaging Shared Resource, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jenna Steiner
- Department of Radiology, Animal Imaging Shared Resource, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Michael F Wempe
- Department of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Angela Pierce
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Breauna Brunt
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Mathew Slade
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Jane J Song
- Biomedical Engineering Program, University of Colorado Boulder, Boulder, Colorado, USA
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Andrew Mongin
- Biomedical Engineering Program, University of Colorado Boulder, Boulder, Colorado, USA
| | - Kang-Ho Song
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Nicholas Ellens
- Alpheus Medical, Inc., Chanhassen, Minnesota, USA
- Acertara Acoustic Labs, Longmont, Colorado, USA
| | - Natalie Serkova
- Department of Radiology, Animal Imaging Shared Resource, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Adam L Green
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Mark Borden
- Biomedical Engineering Program, University of Colorado Boulder, Boulder, Colorado, USA
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
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Baek AR, Kim HK, Kim S, Yang JU, Kang MK, Lee JJ, Sung B, Lee H, Kim M, Cho AE, Park JA, Chang Y. Effect of Structural Fine-Tuning on Chelate Stability and Liver Uptake of Anionic MRI Contrast Agents. J Med Chem 2022; 65:6313-6324. [PMID: 35418226 DOI: 10.1021/acs.jmedchem.2c00291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The purpose of this study is to assess the physicochemical properties and MRI diagnostic efficacy of two newly synthesized 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA)-type Gd chelates, Gd-SucL and Gd-GluL, with an asymmetric α-substituted pendant arm as potential hepatocyte-specific magnetic resonance imaging contrast agents (MRI CAs). Our findings show that fine conformational changes in the chelating arm affect the in vivo pharmacokinetic behavior of the MRI CA, and that a six-membered chelating substituent of Gd-SucL is more advantageous in this system to avoid unwanted interactions with endogenous species. Gd-SucL exhibited a general DOTA-like chelate stability trend, indicating that all chelating arms retain coordination bonding. Finally, the in vivo diagnostic efficacy of highly stable Gd-SucL as a potential hepatocyte-specific MRI CA was evaluated using T1-weighted MR imaging on an orthotopic hepatocarcinoma model.
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Affiliation(s)
- Ah Rum Baek
- Institute of Biomedical Engineering Research, Kyungpook National University, 41405 Daegu, Korea
| | - Hee-Kyung Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, 41061 Daegu, Korea
| | - Soyeon Kim
- Division of RI-Convergence Research, Korea Institute of Radiological and Medical Sciences, 139-706 Seoul, Korea
| | - Ji-Ung Yang
- Division of RI-Convergence Research, Korea Institute of Radiological and Medical Sciences, 139-706 Seoul, Korea
| | - Min-Kyoung Kang
- Laboratory Animal Center, KBIO Osong Medical Innovation Foundation, 28160 Osong, Korea
| | - Jae Jun Lee
- Laboratory Animal Center, KBIO Osong Medical Innovation Foundation, 28160 Osong, Korea
| | - Bokyung Sung
- Department of Medical & Biological Engineering, Kyungpook National University, 41944 Daegu, Korea
| | - Hyeji Lee
- Department of Biomedical Science, Kyungpook National University, 419944 Daegu, Korea
| | - Minsup Kim
- InCerebro Drug Discovery Institute, 01811 Seoul, Korea
| | - Art E Cho
- InCerebro Drug Discovery Institute, 01811 Seoul, Korea
| | - Ji-Ae Park
- Division of RI-Convergence Research, Korea Institute of Radiological and Medical Sciences, 139-706 Seoul, Korea
| | - Yongmin Chang
- Institute of Biomedical Engineering Research, Kyungpook National University, 41405 Daegu, Korea.,Department of Medical & Biological Engineering, Kyungpook National University, 41944 Daegu, Korea.,Department of Biomedical Science, Kyungpook National University, 419944 Daegu, Korea.,Department of Radiology, Kyungpook National University Hospital, 41944 Daegu, Korea.,Department of Molecular Medicine, School of Medicine, Kyungpook National University, 41944 Daegu, Korea
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5
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Ligand binding constants for human serum albumin evaluated by ratiometric analysis of DSC thermograms. Anal Biochem 2021; 628:114293. [PMID: 34181905 DOI: 10.1016/j.ab.2021.114293] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 06/16/2021] [Accepted: 06/23/2021] [Indexed: 02/07/2023]
Abstract
This paper describes an expanded application of our recently reported method (Eskew et al., Analytical Biochemistry 621,1 2021) utilizing thermogram signals for thermal denaturation measured by differential scanning calorimetry. Characteristic signals were used to quantitatively evaluate ligand binding constants for human serum albumin. In our approach the ensemble of temperature dependent calorimetric responses for various protein-ligand mixtures and native HSA were compared, in a ratiometric manner, to extract binding constants and stoichiometries. Protein/ligand mixtures were prepared at various ligand concentrations and subjected to thermal denaturation analysis by calorimetry. Measurements provided the melting temperature, Tm, and free-energy ΔGcal(37°C) for melting ligand-bound Albumin as a function of ligand concentration. Concentration dependent behaviors of these parameters derived from protein/ligand mixtures were used to construct dose-response curves. Fitting of dose-response curves yielded quantitative evaluation of the ligand binding constant and semi-quantitative estimates of the binding stoichiometry. Many of the ligands had known binding affinity for Albumin with binding constants reported in the literature. Evaluated binding parameters for the ligands impressively agreed with reported literature values determined using other standard experimental methods. Results are reported for 29 drug ligands binding to Albumin. These validate our calorimetry-based process for applications in pre-clinical drug screening.
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6
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Consolino L, Irrera P, Romdhane F, Anemone A, Longo DL. Investigating plasma volume expanders as novel macromolecular MRI-CEST contrast agents for tumor contrast-enhanced imaging. Magn Reson Med 2021; 86:995-1007. [PMID: 33764575 DOI: 10.1002/mrm.28778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 12/29/2022]
Abstract
PURPOSE The aim of this study was to investigate two clinically approved plasma volume expanders (dextran 70 and voluven) as macromolecular MRI-chemical exchange saturation transfer (CEST) contrast agents to assess tumor vascular properties. METHODS CEST contrast efficiency of both molecules (6% w/v) was measured in vitro at various irradiation saturation powers (1-6 μT for 5 s) and pH values (range, 5.5-7.9) and the exchange rate of hydroxyl protons was calculated. In vivo studies in a murine adenocarcinoma model (n = 4 mice for each contrast agent) upon i.v. injection provided CEST-derived perfusion tumor properties that were compared with those obtained with a gadolinium-based blood-pool agent (Gd-AAZTA-Madec). RESULTS In vitro measurements showed a marked CEST contrast dependency to pH, with higher CEST contrast at lower pH values for both molecules. The measured prototropic exchange rates confirmed a base-catalyzed exchange rate that was faster for dextran 70 in comparison to voluven. Both molecules showed a similar CEST contrast increase (ΔST% > 3%) in the tumor tissue up to 30 min postinjection, with heterogeneous accumulation. In tumors receiving both CEST and T1 -weighted agents, a voxel-by-voxel analysis indicated moderate spatial correlation of perfusion properties between voluven/dextran 70 and Gd-AAZTA-Madec, suggesting different distribution patterns according to their molecular size. CONCLUSIONS The obtained results showed that both voluven and dextran 70 can be exploited as MRI-CEST contrast agents for evaluating tumor enhancement properties. Their increased accumulation in tumors and prolonged contrast enhancement promote their use as blood-pool MRI-CEST agents to examine tumor vascularization.
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Affiliation(s)
- Lorena Consolino
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Pietro Irrera
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy.,University of Campania Luigi Vanvitelli, Caserta, Italy
| | - Feriel Romdhane
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Annasofia Anemone
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Dario Livio Longo
- Institute of Biostructures and Bioimaging (IBB), National Research Council of Italy (CNR), Turin, Italy
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7
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Tear LR, Carrera C, Dhakan CB, Cavallari E, Travagin F, Calcagno C, Aime S, Gianolio E. An albumin-binding Gd-HPDO3A contrast agent for improved intravascular retention. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00128k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new Gd-HPDO3A derivative with improved MR contrast enhancing efficiency, demonstrated in a murine tumor model and in mouse models for stable and vulnerable atherosclerotic plaques, due to increased intravascular retention.
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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 (IBB), Italian National Research Council (CNR), Turin, Italy
| | - Chetan B. Dhakan
- Institute of Biostructures and Bioimaging (IBB), Italian National Research Council (CNR), Turin, Italy
- University of Campania “Luigi Vanvitelli”, Napoli, Italy
| | - Eleonora Cavallari
- Department of Molecular Biotechnology and Health Sciences, Molecular Imaging Centre, University of Torino Via Nizza 52, 10126 Torino, Italy
| | - Fabio Travagin
- Dipartimento di Scienze del Farmaco (DSF), Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Claudia Calcagno
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Silvio Aime
- Department of Molecular Biotechnology and Health Sciences, Molecular Imaging Centre, University of Torino Via Nizza 52, 10126 Torino, Italy
- Institute of Biostructures and Bioimaging (IBB), Italian National Research Council (CNR), Turin, Italy
| | - Eliana Gianolio
- Department of Molecular Biotechnology and Health Sciences, Molecular Imaging Centre, University of Torino Via Nizza 52, 10126 Torino, Italy
- Institute of Biostructures and Bioimaging (IBB), Italian National Research Council (CNR), Turin, Italy
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8
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Marković OS, Cvijetić IN, Zlatović MV, Opsenica IM, Konstantinović JM, Terzić Jovanović NV, Šolaja BA, Verbić TŽ. Human serum albumin binding of certain antimalarials. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 192:128-139. [PMID: 29128746 DOI: 10.1016/j.saa.2017.10.061] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 10/09/2017] [Accepted: 10/23/2017] [Indexed: 06/07/2023]
Abstract
Interactions between eight in-house synthesized aminoquinolines, along with well-known chloroquine, and human serum albumin (HSA) have been studied by fluorescence spectroscopy. The synthesized aminoquinolines, despite being structurally diverse, were found to be very potent antimalarials. Fluorescence measurements indicate that three compounds having additional thiophene or benzothiophene substructure bind more strongly to HSA than other studied compounds. Competitive binding experiments indicate that these three compounds bind significantly stronger to warfarin compared to diazepam binding site. Fluorescence quenching at three temperatures (20, 25, and 37°C) was analyzed using classical Stern-Volmer equation, and a static quenching mechanism was proposed. The enthalpy and entropy changes upon sulphur-containing compound-HSA interactions were calculated using Van't Hoff equation. Positive values of enthalpy and entropy changes indicate that non-specific, hydrophobic interactions are the main contributors to HSA-compound interaction. Molecular docking and calculated lipophilicity descriptors indicate the same, pointing out that the increased lipophilicity of sulphur-containing compounds might be a reason for their better binding to HSA. Obtained results might contribute to design of novel derivatives with improved pharmacokinetic properties and drug efficacy.
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Affiliation(s)
- Olivera S Marković
- Department of Chemistry-IChTM, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia.
| | - Ilija N Cvijetić
- Innovation Center of the Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia.
| | - Mario V Zlatović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia.
| | - Igor M Opsenica
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia.
| | | | | | - Bogdan A Šolaja
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia; Serbian Academy of Sciences and Arts, Knez Mihailova 35, 11000 Belgrade, Serbia.
| | - Tatjana Ž Verbić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia.
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Abstract
MRI contrast is often enhanced using a contrast agent. Gd3+-complexes are the most widely used metallic MRI agents, and several types of Gd3+-based contrast agents (GBCAs) have been developed. Furthermore, recent advances in MRI technology have, in part, been driven by the development of new GBCAs. However, when designing new functional GBCAs in a small-molecular-weight or nanoparticle form for possible clinical applications, their functions are often compromised by poor pharmacokinetics and possible toxicity. Although great progress must be made in overcoming these limitations and many challenges remain, new functional GBCAs with either small-molecular-weight or nanoparticle forms offer an exciting opportunity for use in precision medicine.
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10
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Synthesis and Preliminary Evaluation of68Ga-NOTA-Biphenyl-c(RGDyK) for the Quantification of Integrin αvβ3. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Lenora CU, Carniato F, Shen Y, Latif Z, Haacke EM, Martin PD, Botta M, Allen MJ. Structural Features of Europium(II)-Containing Cryptates That Influence Relaxivity. Chemistry 2017; 23:15404-15414. [PMID: 28707809 DOI: 10.1002/chem.201702158] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 06/27/2017] [Indexed: 12/11/2022]
Abstract
EuII -containing complexes were studied with respect to properties relevant to their use as contrast agents for magnetic resonance imaging. The influences of molecular parameters and field strength on relaxivity were studied for a series of EuII -containing cryptates and their adducts with β-cyclodextrins, poly-β-cyclodextrins, and human serum albumin. Solid- and solution-phase characterization of EuII -containing complexes is presented that demonstrates the presence of inner-sphere molecules of water. Additionally, relaxivity, water-exchange rate, rotational correlation time, and electronic relaxation times were determined using variable-temperature 17 O NMR, nuclear magnetic relaxation dispersion, and electron paramagnetic resonance spectroscopic techniques. These results are expected to be instrumental in the design of future EuII -based contrast agents.
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Affiliation(s)
- Chamika U Lenora
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica, Universitâ del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15121, Alessandria, Italy
| | - Yimin Shen
- Department of Radiology, Wayne State University School of Medicine, 3990 John R Street, Detroit, MI, 48201, USA
| | - Zahid Latif
- Department of Radiology, Wayne State University School of Medicine, 3990 John R Street, Detroit, MI, 48201, USA.,Barbara Ann Karmanos Cancer Institute, 4100 John R Street, Detroit, MI, 48201, USA
| | - E Mark Haacke
- Department of Radiology, Wayne State University School of Medicine, 3990 John R Street, Detroit, MI, 48201, USA.,Barbara Ann Karmanos Cancer Institute, 4100 John R Street, Detroit, MI, 48201, USA
| | - Philip D Martin
- Lumigen Instrument Center, Chemistry Department, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Universitâ del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15121, Alessandria, Italy
| | - Matthew J Allen
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA.,Barbara Ann Karmanos Cancer Institute, 4100 John R Street, Detroit, MI, 48201, USA
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Leygue N, Boulay A, Galaup C, Benoist E, Laurent S, Vander Elst L, Mestre-Voegtlé B, Picard C. Optical and relaxometric properties of monometallic (EuIII, TbIII, GdIII) and heterobimetallic (ReI/GdIII) systems based on a functionalized bipyridine-containing acyclic ligand. Dalton Trans 2016; 45:8379-93. [DOI: 10.1039/c6dt00405a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photophysical and relaxometric properties, in aqueous solution, of Ln-BPMNTA complexes and a derived ReI/GdIII dinuclear complex are reported in this paper.
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Affiliation(s)
- Nadine Leygue
- CNRS
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique
- SPCMIB
- UMR-5068
- F-31062 Toulouse cedex 9
| | - Alexandre Boulay
- CNRS
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique
- SPCMIB
- UMR-5068
- F-31062 Toulouse cedex 9
| | - Chantal Galaup
- CNRS
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique
- SPCMIB
- UMR-5068
- F-31062 Toulouse cedex 9
| | - Eric Benoist
- CNRS
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique
- SPCMIB
- UMR-5068
- F-31062 Toulouse cedex 9
| | - Sophie Laurent
- NMR and Molecular Imaging Laboratory
- Department of General
- Organic and Biomedical Chemistry
- University of Mons
- B-7000 Mons
| | - Luce Vander Elst
- NMR and Molecular Imaging Laboratory
- Department of General
- Organic and Biomedical Chemistry
- University of Mons
- B-7000 Mons
| | - Béatrice Mestre-Voegtlé
- CNRS
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique
- SPCMIB
- UMR-5068
- F-31062 Toulouse cedex 9
| | - Claude Picard
- CNRS
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique
- SPCMIB
- UMR-5068
- F-31062 Toulouse cedex 9
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13
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Associating a negatively charged GdDOTA-derivative to the Pittsburgh compound B for targeting Aβ amyloid aggregates. J Biol Inorg Chem 2015; 21:83-99. [DOI: 10.1007/s00775-015-1316-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 11/13/2015] [Indexed: 01/26/2023]
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14
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Nithyakumar A, Alexander V. Synthesis, relaxivity, and in vitro fluorescence imaging studies of a novel d-f heterometallic trinuclear complex as a potential bimodal imaging probe for MRI and optical imaging. Dalton Trans 2015; 44:17800-9. [PMID: 26400754 DOI: 10.1039/c5dt02123e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new trinuclear heterometallic Ru(II)-Gd complex of 4-aminopyridine appended DO3A (DO3A = 1,4,7-tris(carboxymethyl)-1,4,7,10-tetraazacyclododecane) with 2,2'-bipyridine as ancillary ligands is synthesized and its relaxometry and in vitro fluorescence imaging studies are reported. The complex [Ru(bpy)2{Gd(DOTA-AMpy)(H2O)}2]Cl2 (7) exhibits a "per Gd" longitudinal relaxivity (r1p) of 5.80 and 14.30 mM(-1) s(-1) in aqueous solution and in the presence of HSA, respectively (20 MHz, pH = 7.4, PBS, 37 °C). The complex 7 exhibits an intense (1)MLCT absorption band at 480 nm and luminesces at 595 nm with a luminescence quantum yield of 3.2%. The fluorescence microscopy imaging study of HeLa cells incubated with 7 and stained with ethidium bromide and acridine orange confirms that the cells are viable throughout the imaging experiments and its cytotoxicity against HeLa cells, studied by the MTT assay, demonstrates its use for bioimaging studies. HeLa cell lines treated with the complex 7 and stained with Hoechst-33342 showed marked morphological signs of apoptosis in a dose-dependent manner by inducing changes in cell cycle arrest at the G2/M phase. Furthermore, apoptosis of HeLa cells, studied by the DNA ladder assay, indicates apoptotic cell death lending support for the antitumor activity of 7. A molecular docking study reveals that the complex 7 intercalates into the major groove of the DNA stabilized by hydrogen bonding and it binds with HSA by electrostatic- and hydrogen bonding interactions. The relaxometry, luminescence and fluorescence imaging studies indicate that the Ru(II)-Gd complex 7 has a good cell membrane permeability and could be considered as a potential bimodal imaging probe.
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Affiliation(s)
- A Nithyakumar
- Department of Chemistry, Loyola College, Chennai 600034, India.
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15
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Carron S, Li QY, Vander Elst L, Muller RN, Parac-Vogt TN, Capobianco JA. Assembly of near infra-red emitting upconverting nanoparticles and multiple Gd(III)-chelates as a potential bimodal contrast agent for MRI and optical imaging. Dalton Trans 2015; 44:11331-9. [PMID: 26011519 DOI: 10.1039/c5dt00919g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Linking multiple paramagnetic gadolinium(III)-chelates based on the 2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetraazacyclododec-1-yl]acetate (DOTA) ligand to the surface of NaGdF4:Yb(3+),Tm(3+) upconverting nanoparticles with an average particle size of 20 nm resulted in an assembly that has favorable properties for bimodal Magnetic Resonance Imaging (MRI) and Optical Imaging (OI). An improved synthetic pathway was used to couple the paramagnetic precursor to the nanoparticles. The nanoparticles were rendered water dispersible via citrate capping, leaving one acid group free for amide coupling with the mono-amino precursor of the DOTA ligand. Luminescence spectroscopy measurements have shown that the excitation of the nanoconstruct at 980 nm resulted in intense upconverted emission of thulium(III) at 800 nm. The assembly of several paramagnetic centers on the nanoparticle scaffold reduces the overall tumbling rate, resulting in enhanced longitudinal relaxation times and improved relaxivity. The proton NMRD profiles show a characteristic hump at higher frequencies, which is caused by the slow rotation of the nanoconstruct, resulting in r1 values of 25 mM(-1) s(-1) per gadolinium(III)-ion at 60 MHz and 310 K. This is a significant improvement compared to the Gd-DO3A-ethylamine precursor (4) for which a value of r1 of 3.23 mM(-1) s(-1) was observed under the same conditions. Theoretical fitting by two different approaches showed an increase of τR from 57.3 ps for the Gd-DO3A-ethylamine precursor (4) to 392.0 ps for the nanoconstruct, which is responsible for the overall substantial increase in relaxivity.
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Affiliation(s)
- Sophie Carron
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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16
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Barnes SR, Ng TSC, Montagne A, Law M, Zlokovic BV, Jacobs RE. Optimal acquisition and modeling parameters for accurate assessment of low Ktrans blood-brain barrier permeability using dynamic contrast-enhanced MRI. Magn Reson Med 2015; 75:1967-77. [PMID: 26077645 DOI: 10.1002/mrm.25793] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 04/30/2015] [Accepted: 04/30/2015] [Indexed: 01/09/2023]
Abstract
PURPOSE To determine optimal parameters for acquisition and processing of dynamic contrast-enhanced MRI (DCE-MRI) to detect small changes in near normal low blood-brain barrier (BBB) permeability. METHODS Using a contrast-to-noise ratio metric (K-CNR) for Ktrans precision and accuracy, the effects of kinetic model selection, scan duration, temporal resolution, signal drift, and length of baseline on the estimation of low permeability values was evaluated with simulations. RESULTS The Patlak model was shown to give the highest K-CNR at low Ktrans . The Ktrans transition point, above which other models yielded superior results, was highly dependent on scan duration and tissue extravascular extracellular volume fraction (ve ). The highest K-CNR for low Ktrans was obtained when Patlak model analysis was combined with long scan times (10-30 min), modest temporal resolution (<60 s/image), and long baseline scans (1-4 min). Signal drift as low as 3% was shown to affect the accuracy of Ktrans estimation with Patlak analysis. CONCLUSION DCE acquisition and modeling parameters are interdependent and should be optimized together for the tissue being imaged. Appropriately optimized protocols can detect even the subtlest changes in BBB integrity and may be used to probe the earliest changes in neurodegenerative diseases such as Alzheimer's disease and multiple sclerosis.
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Affiliation(s)
- Samuel R Barnes
- Beckman Institute, Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Thomas S C Ng
- Beckman Institute, Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA.,Department of Medicine, University of California, Irvine Medical Center, Orange, California, USA
| | - Axel Montagne
- Zilkha Neurogenetic Institute and Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Meng Law
- Division of Neuroradiology, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Berislav V Zlokovic
- Zilkha Neurogenetic Institute and Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Russell E Jacobs
- Beckman Institute, Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
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17
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The protein and contrast agent-specific influence of pathological plasma-protein concentration levels on contrast-enhanced magnetic resonance imaging. Invest Radiol 2015; 49:608-19. [PMID: 24710201 DOI: 10.1097/rli.0000000000000061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The objective of this study was to measure the protein-specific response of r1 and r2 relaxivities of commercially available gadolinium-based magnetic resonance imaging contrast agents to variation of plasma-protein concentrations. MATERIALS AND METHODS In this in vitro study, contrast agent (gadofosveset trisodium, gadoxetate disodium, gadobutrol, and gadoterate meglumine) dilution series (0-2.5 mmol Gd/L) were prepared with plasma-protein (human serum albumin [HSA] and immunoglobulin G [IgG]) concentrations at physiological (42 and 10 g/L HSA and IgG, respectively, Normal) and at 3 pathological levels with HSA/IgG concentrations of 10/10 (solution Alb low), 42/50 (IgG mild), and 42/70 (IgG severe) g/L. Contrast-agent molar relaxivities and relaxivity-enhancing protein-contrast-agent interaction coefficients were determined on the basis of inversion-recovery and spin-echo data acquired at 1.5 and 3.0 T at 37°C. Protein-induced magnetic resonance imaging signal changes were calculated. RESULTS The effective r1 and r2 molar relaxivities consistently increased with albumin and IgG concentrations. At 1.5 T, the r1 values increased by 10.2 (gadofosveset), 4.3 (gadoxetate), 1.3 (gadobutrol), and 1.1 L s mmol (gadoterate), respectively, from the Alb low to the IgG severe solution. At 3.0 T, the r1 values increased by 2.9 (gadofosveset), 2.3 (gadoxetate), 0.7 (gadobutrol), and 0.9 (gadoterate) L s mmol, respectively. An excess of IgG most strongly increased the r1 of gadoxetate (+40 and +19% at 1.5 and 3.0 T, respectively, from Normal to IgG severe). An albumin deficiency most strongly decreased the r1 of gadofosveset (-44% and -20% at 1.5 and 3.0 T, respectively, from Normal to Alb low). The modeling confirmed a strong gadofosveset r1 enhancement by albumin and suggested stronger IgG than albumin effects on the apparent molar relaxivity of the other agents per protein mass concentration at 1.5 T. CONCLUSIONS Pathological deviations from normal plasma-protein concentrations in aqueous solutions result in changes of effective r1 and r2 contrast-agent relaxivities and projected signal enhancements that depend on the contrast agent, the blood-serum protein profile, and the field strength.
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T1 Relaxivities of Gadolinium-Based Magnetic Resonance Contrast Agents in Human Whole Blood at 1.5, 3, and 7 T. Invest Radiol 2015; 50:330-8. [PMID: 25658049 DOI: 10.1097/rli.0000000000000132] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Graphical Abstract: Chem. Eur. J. 9/2015. Chemistry 2015. [DOI: 10.1002/chem.404673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Richardson OC, Bane O, Scott MLJ, Tanner SF, Waterton JC, Sourbron SP, Carroll TJ, Buckley DL. Gadofosveset-based biomarker of tissue albumin concentration: Technical validation in vitro and feasibility in vivo. Magn Reson Med 2015; 73:244-53. [PMID: 24515975 PMCID: PMC4296221 DOI: 10.1002/mrm.25128] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 12/19/2013] [Indexed: 11/07/2022]
Abstract
PURPOSE There is currently no adequate method of mapping physiologic and pathophysiologic tissue albumin concentrations in human subjects. The objective of this study was to devise and evaluate a biomarker of regional albumin concentration using gadofosveset-enhanced MRI. THEORY AND METHODS A binding and relaxation model was devised and evaluated in vitro in solutions of albumin at 3.0 Tesla (T) and 4.7T. The method was evaluated in the heart in seven volunteers at 3.0T. RESULTS MRI-derived estimates of albumin concentration were in good agreement with true values over the range 0.1-1.0 mM (Pearson correlation coefficients of 0.85 and 0.88 for 3.0T and 4.7T, respectively). The mean calculated albumin concentration in the myocardium for the volunteers was 0.02 mM (range, 0.01-0.03 mM). CONCLUSION Accurate estimates of albumin concentration in vitro suggest this may be a viable noninvasive alternative to existing techniques. In the myocardium the MRI-derived estimates of albumin concentration indicate the practical feasibility of the technique but were below expected values. Gadofosveset-enhanced MR relaxometry has potential in providing biomarkers of regional albumin concentration; further evaluation is required before it can be used reliably in vivo.
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Affiliation(s)
- Owen C Richardson
- Division of Medical Physics, University of LeedsLeeds, United Kingdom
| | - Octavia Bane
- Departments of Biomedical Engineering and Radiology, Northwestern UniversityChicago, Illinois, USA
| | - Marietta LJ Scott
- Personalized Healthcare and Biomarkers, AstraZenecaMacclesfield, Cheshire, United Kingdom
| | - Steven F Tanner
- Department of Medical Physics and Engineering, Leeds Teaching Hospitals NHS TrustLeeds, United Kingdom.
| | - John C Waterton
- Personalized Healthcare and Biomarkers, AstraZenecaMacclesfield, Cheshire, United Kingdom
| | - Steven P Sourbron
- Division of Medical Physics, University of LeedsLeeds, United Kingdom
| | - Timothy J Carroll
- Departments of Biomedical Engineering and Radiology, Northwestern UniversityChicago, Illinois, USA
| | - David L Buckley
- Division of Medical Physics, University of LeedsLeeds, United Kingdom
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Regueiro-Figueroa M, Rolla GA, Esteban-Gómez D, de Blas A, Rodríguez-Blas T, Botta M, Platas-Iglesias C. High Relaxivity Mn2+-Based MRI Contrast Agents. Chemistry 2014; 20:17300-5. [DOI: 10.1002/chem.201404673] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 02/05/2023]
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Affiliation(s)
- Marie C. Heffern
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
| | - Lauren M. Matosziuk
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
| | - Thomas J. Meade
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
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23
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Ferreira MF, Pereira G, Martins AF, Martins CIO, Prata MIM, Petoud S, Toth E, Ferreira PMT, Martins JA, Geraldes CFGC. Ln[DO3A-N-α-(pyrenebutanamido)propionate] complexes: optimized relaxivity and NIR optical properties. Dalton Trans 2014; 43:3162-73. [DOI: 10.1039/c3dt52958d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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24
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Martins AF, Morfin JF, Geraldes CFGC, Tóth É. Gd3+ complexes conjugated to Pittsburgh compound B: potential MRI markers of β-amyloid plaques. J Biol Inorg Chem 2013; 19:281-95. [DOI: 10.1007/s00775-013-1055-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 10/09/2013] [Indexed: 11/29/2022]
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25
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Kim HK, Kang MK, Jung KH, Kang SH, Kim YH, Jung JC, Lee GH, Chang Y, Kim TJ. Gadolinium Complex of DO3A-benzothiazole Aniline (BTA) Conjugate as a Theranostic Agent. J Med Chem 2013; 56:8104-11. [DOI: 10.1021/jm401206t] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | | | | | - Yeoun-Hee Kim
- Cheil Eye
Hospital, Cheil Eye Research Institute, 803-2 Sinam-1dong, Dong-gu, Daegu, 701-820, Korea
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Zhou Q, Henoumont C, Vander Elst L, Laurent S, Muller RN. Fluorometry, a fast screening technique for non-covalent binding of contrast agents to human serum albumin? CONTRAST MEDIA & MOLECULAR IMAGING 2013; 8:361-5. [DOI: 10.1002/cmmi.1531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Revised: 12/09/2012] [Accepted: 01/04/2013] [Indexed: 11/09/2022]
Affiliation(s)
| | - C. Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; Belgium
| | - L. Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; Belgium
| | - S. Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; Belgium
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27
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de Sá A, Bonnet CS, Geraldes CFGC, Tóth É, Ferreira PMT, André JP. Thermodynamic stability and relaxation studies of small, triaza-macrocyclic Mn(ii) chelates. Dalton Trans 2013; 42:4522-32. [DOI: 10.1039/c2dt32496b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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28
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Jung KH, Kim HK, Park JA, Nam KS, Lee GH, Chang Y, Kim TJ. Gd Complexes of DO3A-(Biphenyl-2,2'-bisamides) Conjugates as MRI Blood-Pool Contrast Agents. ACS Med Chem Lett 2012; 3:1003-7. [PMID: 24900422 DOI: 10.1021/ml300223b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 10/23/2012] [Indexed: 11/29/2022] Open
Abstract
We report the synthesis of DO3A derivatives of 2,2'-diaminobiphenyl (1a,b) and their Gd complexes of the type [Gd(1)(H2O)]·xH2O (2a,b) for use as new MRI blood-pool contrast agents (BPCAs) that provide strong and prolonged vascular enhancement. Pharmacokinetic inertness of 2 compares well with that of structurally related Dotarem, a DOTA-based MRI CA currently in use. The R 1 relaxivity in water reaches 7.3 mM(-1) s(-1), which is approximately twice as high as that of Dotarem (R 1 = 3.9 mM(-1) s(-1)). They show interaction with HSA to give association constants (K a) in the order of two (∼10(2)), revealing the existence of the blood-pool effect. The in vivo MR images of mice obtained with 2 are coherent, showing strong signal enhancement in both heart, abdominal aorta, and small vessels. Furthermore, the brain tumor is vividly enhanced for an extended period of time.
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Affiliation(s)
| | | | - Ji-Ae Park
- Molecular Imaging Research Center, Korea Institute of Radiological Medical Science, Nowon-gil 75, Seoul, 139-706, Korea
| | | | | | - Yongmin Chang
- Department of Radiology & Molecular Medicine, Kyungpook National University, Dongin-dong 2-ga, Daegu, 700-422, Korea
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Dhingra Verma K, Mishra A, Engelmann J, Beyerlein M, Maier ME, Logothetis NK. Magnetic-Field-Dependent 1H Relaxivity Behavior of Biotin/Avidin-Based Magnetic Resonance Imaging Probes. Chempluschem 2012. [DOI: 10.1002/cplu.201200064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Henoumont C, Laurent S, Muller RN, Vander Elst L. Effect of nonenzymatic glycosylation on the magnetic resonance imaging (MRI) contrast agent binding to human serum albumin. J Med Chem 2012; 55:4015-9. [PMID: 22420713 DOI: 10.1021/jm3000246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enhanced nonenzymatic glycosylation (NEG) of human serum albumin (HSA) is observed in diabetic patients. This modifies some of the physiological functions of HSA, as the binding of ligands. Some gadolinium complexes, commonly used as MRI contrast agents, have a high affinity for HSA, which enhances their efficacy. The aim of this study is to evaluate the possible influence of the NEG of HSA on its affinity for some gadolinium chelates.
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Affiliation(s)
- Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
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31
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Lee GH, Chang Y, Kim TJ. Blood-Pool and Targeting MRI Contrast Agents: From Gd-Chelates to Gd-Nanoparticles. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101137] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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32
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Dehaen G, Verwilst P, Eliseeva SV, Laurent S, Vander Elst L, Muller RN, De Borggraeve WM, Binnemans K, Parac-Vogt TN. A Heterobimetallic Ruthenium–Gadolinium Complex as a Potential Agent for Bimodal Imaging. Inorg Chem 2011; 50:10005-14. [DOI: 10.1021/ic200726t] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Geert Dehaen
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Peter Verwilst
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Svetlana V. Eliseeva
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Sophie Laurent
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, University of Mons-Hainaut, 7000 Mons, Belgium
| | - Luce Vander Elst
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, University of Mons-Hainaut, 7000 Mons, Belgium
| | - Robert N. Muller
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, University of Mons-Hainaut, 7000 Mons, Belgium
| | - Wim M. De Borggraeve
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Koen Binnemans
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Tatjana N. Parac-Vogt
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
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Frullano L, Caravan P. Strategies for the preparation of bifunctional gadolinium(III) chelators. Curr Org Synth 2011; 8:535-565. [PMID: 22375102 DOI: 10.2174/157017911796117250] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The development of gadolinium chelators that can be easily and readily linked to various substrates is of primary importance for the development high relaxation efficiency and/or targeted magnetic resonance imaging (MRI) contrast agents. Over the last 25 years a large number of bifunctional chelators have been prepared. For the most part, these compounds are based on ligands that are already used in clinically approved contrast agents. More recently, new bifunctional chelators have been reported based on complexes that show a more potent relaxation effect, faster complexation kinetics and in some cases simpler synthetic procedures. This review provides an overview of the synthetic strategies used for the preparation of bifunctional chelators for MRI applications.
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Affiliation(s)
- Luca Frullano
- Case Western Reserve University. 11100 Euclid Ave Cleveland, OH 44106
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Jung KH, Kim HK, Lee GH, Kang DS, Park JA, Kim KM, Chang Y, Kim TJ. Gd Complexes of Macrocyclic Diethylenetriaminepentaacetic Acid (DTPA) Biphenyl-2,2′-bisamides as Strong Blood-Pool Magnetic Resonance Imaging Contrast Agents. J Med Chem 2011; 54:5385-94. [DOI: 10.1021/jm2002052] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Duk-Sik Kang
- Department of Diagnostic Radiology and Molecular Medicine, Kyungpook National University, Dongin-dong 2-ga, Daegu, 700-422, Republic of Korea
| | - Ji-Ae Park
- Laboratory of Nuclear Medicine Research, Molecular Imaging Research Center, Korea Institute of Radiological Medical Science, Nowon-gil 75, Seoul, 139-706, Republic of Korea
| | - Kyeong Min Kim
- Laboratory of Nuclear Medicine Research, Molecular Imaging Research Center, Korea Institute of Radiological Medical Science, Nowon-gil 75, Seoul, 139-706, Republic of Korea
| | - Yongmin Chang
- Department of Diagnostic Radiology and Molecular Medicine, Kyungpook National University, Dongin-dong 2-ga, Daegu, 700-422, Republic of Korea
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Henoumont C, Vander Elst L, Laurent S, Muller RN. Synthesis and physicochemical characterization of Gd-C4-thyroxin-DTPA, a potential MRI contrast agent. Evaluation of its affinity for human serum albumin by proton relaxometry, NMR diffusometry, and electrospray mass spectrometry. J Phys Chem B 2010; 114:3689-97. [PMID: 20175550 DOI: 10.1021/jp910961j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gd-C(4)-thyroxin-DTPA, a potential MRI contrast agent, was synthesized from Gd-DTPA and thyroxine, which interacts strongly with human serum albumin (HSA). It was characterized in water by its relaxometric properties and its stability versus zinc transmetalation. The affinity of the complex for HSA was studied by using three different methods: proton relaxometry, NMR diffusometry, and electrospray mass spectrometry. From the results, it appears that Gd-C(4)-thyroxin-DTPA exhibits a relatively high relaxivity (r(1) = 9.01 s(-1) mM(-1) at 1.5 T and 310 K), a good stability versus zinc transmetalation, and a strong interaction with HSA (K(a) approximately 10,000 M(-1) with two binding sites). The kinetics of the exchange between the bound and the free form of the complex was evaluated by the NMR diffusometry technique. Competition experiments have allowed the assignment of the chelate's binding site on HSA.
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Affiliation(s)
- C Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau, B-7000 Mons, Belgium
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Kim HK, Park JA, Kim KM, Sk Md. N, Kang DS, Lee J, Chang Y, Kim TJ. Gd-complexes of macrocyclic DTPA conjugates of 1,1′-bis(amino)ferrocenes as high relaxivity MRI blood-pool contrast agents (BPCAs). Chem Commun (Camb) 2010; 46:8442-4. [DOI: 10.1039/c0cc03145c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Geraldes CFGC, Laurent S. Classification and basic properties of contrast agents for magnetic resonance imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2009; 4:1-23. [PMID: 19156706 DOI: 10.1002/cmmi.265] [Citation(s) in RCA: 354] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A comprehensive classification of contrast agents currently used or under development for magnetic resonance imaging (MRI) is presented. Agents based on small chelates, macromolecular systems, iron oxides and other nanosystems, as well as responsive, chemical exchange saturation transfer (CEST) and hyperpolarization agents are covered in order to discuss the various possibilities of using MRI as a molecular imaging technique. The classification includes composition, magnetic properties, biodistribution and imaging applications. Chemical compositions of various classes of MRI contrast agents are tabulated, and their magnetic status including diamagnetic, paramagnetic and superparamagnetic are outlined. Classification according to biodistribution covers all types of MRI contrast agents including, among others, extracellular, blood pool, polymeric, particulate, responsive, oral, and organ specific (hepatobiliary, RES, lymph nodes, bone marrow and brain). Various targeting strategies of molecular, macromolecular and particulate carriers are also illustrated.
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Affiliation(s)
- Carlos F G C Geraldes
- Department of Biochemistry, Faculty of Science and Technology, and Center of Neurosciences and Cell Biology, University of Coimbra, P-3001-401 Coimbra, Portugal.
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Alford JK, Rutt BK, Scholl TJ, Handler WB, Chronik BA. Delta relaxation enhanced MR: Improving activation-specificity of molecular probes throughR1dispersion imaging. Magn Reson Med 2009; 61:796-802. [DOI: 10.1002/mrm.21933] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Schühle D, Schatz J, Laurent S, Vander Elst L, Muller R, Stuart M, Peters J. Calix[4]arenes as Molecular Platforms for Magnetic Resonance Imaging (MRI) Contrast Agents. Chemistry 2009; 15:3290-6. [DOI: 10.1002/chem.200802099] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Henoumont C, Vander Elst L, Laurent S, Muller RN. Study of non-covalent interactions between MRI contrast agents and human serum albumin by NMR diffusometry. J Biol Inorg Chem 2009; 14:683-91. [DOI: 10.1007/s00775-009-0481-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Accepted: 02/05/2009] [Indexed: 12/28/2022]
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Silvério S, Torres S, Martins AF, Martins JA, André JP, Helm L, Prata MIM, Santos AC, Geraldes CFGC. Lanthanide chelates of (bis)-hydroxymethyl-substituted DTTA with potential application as contrast agents in magnetic resonance imaging. Dalton Trans 2009:4656-70. [DOI: 10.1039/b823402g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu J, Wang X, Cai Z, Lee FSC. Effect of tanshinone IIA on the noncovalent interaction between warfarin and human serum albumin studied by electrospray ionization mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2008; 19:1568-1575. [PMID: 18657993 DOI: 10.1016/j.jasms.2008.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2008] [Revised: 06/05/2008] [Accepted: 06/06/2008] [Indexed: 05/26/2023]
Abstract
Enhanced anticoagulation and/or even bleeding are often observed when patients on long-term warfarin (WAR) therapy consumed Danshen, a well-known medicinal herb in traditional Chinese medicine (TCM). This study demonstrates that altered WAR metabolism, arising from its interaction with the active components in Danshen, played a significant role in this curative effect. Mass spectrometric techniques including ESI-ITMS (electrospray ionization ion-trap mass spectrometry) and ESI-TOF (time-of-flight)-MS have been developed for the study of such drug-herb interactions. The experimental approach involved a detailed analysis and comparison of WAR metabolites in vivo from blood or urine of rats that had been orally administrated with WAR, either singly or together with the representative bioactive component of Danshen-lipid soluble TIIA (Tanshinon IIA), and a study of the interaction of human serum albumin (HSA), WAR, and water-soluble sodium tanshinone IIA sulfonate (STS) in vitro. Results demonstrate that TIIA accelerates the metabolic rate of WAR, whereas STS displaces WAR from the WAR-HSA complex, resulting in an increase of free WAR concentration in blood. It is suggested that the elevated level and enhanced metabolism of WAR is responsible for the over-anticoagulation effect observed.
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Affiliation(s)
- Jie Liu
- Department of Chemistry and The Key Laboratory of Analytical Science of MOE, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
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Henoumont C, Henrotte V, Laurent S, Vander Elst L, Muller R. Synthesis of a new gadolinium complex with a high affinity for human serum albumin and its manifold physicochemical characterization by proton relaxation rate analysis, NMR diffusometry and electrospray mass spectrometry. J Inorg Biochem 2008; 102:721-30. [DOI: 10.1016/j.jinorgbio.2007.10.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2007] [Revised: 10/12/2007] [Accepted: 10/31/2007] [Indexed: 12/20/2022]
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Henrotte V, Muller RN, Bartholet A, Elst LV. The presence of halide salts influences the non-covalent interaction of MRI contrast agents and human serum albumin. CONTRAST MEDIA & MOLECULAR IMAGING 2007; 2:258-61. [DOI: 10.1002/cmmi.153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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