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Qian W, Zhu Q, Duan B, Tang W, Yuan Y, Hu A. Electrostatic self-assembled nanoparticles based on spherical polyelectrolyte brushes for magnetic resonance imaging. Dalton Trans 2018; 47:7663-7668. [DOI: 10.1039/c8dt01069b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Electrostatic self-assemblies based on SPBs and Gd-DTPA-NO-C4 exhibit perfect relaxometric performance.
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Affiliation(s)
- Weiqiao Qian
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Qin Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Bing Duan
- The State Key Laboratory of Bioreactor Engineering East China University of Science and Technology
- Shanghai
- China
| | - Weijun Tang
- Department of Radiology
- Huashan Hospital Affiliated to Fudan University
- Shanghai
- China
| | - Yuan Yuan
- The State Key Laboratory of Bioreactor Engineering East China University of Science and Technology
- Shanghai
- China
| | - Aiguo Hu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
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Pashkunova-Martic I, Kremser C, Galanski M, Schluga P, Arion V, Debbage P, Jaschke W, Keppler B. Lectin conjugates as biospecific contrast agents for MRI. Coupling of Lycopersicon esculentum agglutinin to linear water-soluble DTPA-loaded oligomers. Mol Imaging Biol 2011; 13:432-442. [PMID: 20574850 DOI: 10.1007/s11307-010-0358-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Magnetic resonance imaging (MRI) requires synthesis of contrast media bearing targeting groups and numerous gadolinium chelating groups generating high relaxivity. This paper explores the results of linking the gadolinium chelates to the targeting group, a protein molecule, via various types of linkers. Polycondensates of diethylenetriaminepentaacetic acid (DTPA) with either diols or diamines were synthesised and coupled to the targeting group, a lectin (Lycopersicon esculentum agglutinin, tomato lectin) which binds with high affinity to specific oligosaccharide configurations in the endothelial glycocalyx. The polycondensates bear up to four carboxylic groups per constitutive unit. Gd-chelate bonds are created through dative interactions with the unshared pair of electrons on each oxygen and nitrogen atom on DTPA. This is mandatory for complexation of Gd(III) and avoidance of the severe toxicity of free gadolinium ions. The polymer-DTPA compounds were characterised by (1)H NMR and mass spectrometry. The final lectin-DTPA-polycondensate conjugates were purified by fast protein liquid chromatography (FPLC). The capacity for specific binding was assessed, and the MRI properties were examined in order to evaluate the use of these oligomers as components of selective perfusional contrast agents.
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Affiliation(s)
- Irena Pashkunova-Martic
- Institute of Inorganic Chemistry, University of Vienna, Waehringerstr. 42, 1090, Vienna, Austria
| | - Christian Kremser
- Department of Radiology, Innsbruck Medical University, Anichstr. 35, 6020, Innsbruck, Austria
| | - Markus Galanski
- Institute of Inorganic Chemistry, University of Vienna, Waehringerstr. 42, 1090, Vienna, Austria
| | - Petra Schluga
- Institute of Inorganic Chemistry, University of Vienna, Waehringerstr. 42, 1090, Vienna, Austria
| | - Vladimir Arion
- Institute of Inorganic Chemistry, University of Vienna, Waehringerstr. 42, 1090, Vienna, Austria
| | - Paul Debbage
- Department of Anatomy, Histology and Embryology, Innsbruck Medical University, Muellerstr. 59, 6020, Innsbruck, Austria
| | - Werner Jaschke
- Department of Radiology, Innsbruck Medical University, Anichstr. 35, 6020, Innsbruck, Austria
| | - Bernhard Keppler
- Institute of Inorganic Chemistry, University of Vienna, Waehringerstr. 42, 1090, Vienna, Austria.
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Yan G, Zhuo R. Research progress of magnetic resonance imaging contrast agents. ACTA ACUST UNITED AC 2001. [DOI: 10.1007/bf03184316] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Montembault V, Soutif JC, Brosse JC, Grote M. Synthesis and complexing properties of resins containing aminocarboxylic acid as functional groups from diethylenetriaminepentaacetic acid bisanhydride and polyvinyl alcohols. REACT FUNCT POLYM 1999. [DOI: 10.1016/s1381-5148(98)00006-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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