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Bristow P, Schantz K, Moosbrugger Z, Martin K, Liebenberg H, Steimle S, Xiao Q, Percec V, Wilner SE. Aptamer-Targeted Dendrimersomes Assembled from Azido-Modified Janus Dendrimers "Clicked" to DNA. Biomacromolecules 2024; 25:1541-1549. [PMID: 38394608 PMCID: PMC10934268 DOI: 10.1021/acs.biomac.3c01108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024]
Abstract
Amphiphilic Janus dendrimers (JDs), synthetic alternatives to lipids, have the potential to expand the scope of nanocarrier delivery systems. JDs self-assemble into vesicles called dendrimersomes, encapsulate both hydrophobic cargo and nucleic acids, and demonstrate enhanced stability in comparison to lipid nanoparticles (LNPs). Here, we report the ability to enhance the cellular uptake of Janus dendrimersomes using DNA aptamers. Azido-modified JDs were synthesized and conjugated to alkyne-modified DNAs using copper-catalyzed azide alkyne cycloaddition. DNA-functionalized JDs form nanometer-sized dendrimersomes in aqueous solution via thin film hydration. These vesicles, now displaying short DNAs, are then hybridized to transferrin receptor binding DNA aptamers. Aptamer-targeted dendrimersomes show improved cellular uptake as compared to control vesicles via fluorescence microscopy and flow cytometry. This work demonstrates the versatility of using click chemistry to conjugate functionalized JDs with biologically relevant molecules and the feasibility of targeting DNA-modified dendrimersomes for drug delivery applications.
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Affiliation(s)
- Paige Bristow
- Department
of Chemistry, Ursinus College, Collegeville, Pennsylvania 19426, United States
| | - Kyle Schantz
- Department
of Chemistry, Ursinus College, Collegeville, Pennsylvania 19426, United States
| | - Zoe Moosbrugger
- Department
of Chemistry, Ursinus College, Collegeville, Pennsylvania 19426, United States
| | - Kailey Martin
- Department
of Chemistry, Ursinus College, Collegeville, Pennsylvania 19426, United States
| | - Haley Liebenberg
- Department
of Chemistry, Ursinus College, Collegeville, Pennsylvania 19426, United States
| | - Stefan Steimle
- Department
of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19014, United States
| | - Qi Xiao
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19014, United States
| | - Virgil Percec
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19014, United States
| | - Samantha E. Wilner
- Department
of Chemistry, Ursinus College, Collegeville, Pennsylvania 19426, United States
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2
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Klajnert-Maculewicz B, Janaszewska A, Majecka A. Dendrimersomes: Biomedical applications. Chem Commun (Camb) 2023; 59:14611-14625. [PMID: 37999927 DOI: 10.1039/d3cc03182a] [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: 11/25/2023]
Abstract
In recent years, dendrimer-based vesicles, known as dendrimersomes, have garnered significant attention as highly promising alternatives to lipid vesicles in a variety of biomedical applications. Dendrimersomes offer several advantages, including relatively straightforward synthesis, non-immunogenic properties, stability in circulation, and minimal size variability. These vesicles are composed of Janus dendrimers, which are polymers characterized by two dendritic wedges with different terminal groups - hydrophilic and hydrophobic. This dendrimer structure enables the self-assembly of dendrimersomes. The purpose of this highlight is to provide an overview of recent advancements achieved through the utilization of biomimetic dendrimersomes in various biomedical applications such as drug and nucleic acid delivery.
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Affiliation(s)
- Barbara Klajnert-Maculewicz
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Anna Janaszewska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Agata Majecka
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska 141/143, 90-236 Lodz, Poland.
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3
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Properties and Bioapplications of Amphiphilic Janus Dendrimers: A Review. Pharmaceutics 2023; 15:pharmaceutics15020589. [PMID: 36839911 PMCID: PMC9958631 DOI: 10.3390/pharmaceutics15020589] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Amphiphilic Janus dendrimers are arrangements containing both hydrophilic and hydrophobic units, capable of forming ordered aggregates by intermolecular noncovalent interactions between the dendrimer units. Compared to conventional dendrimers, these molecular self-assemblies possess particular and effective attributes i.e., the presence of different terminal groups, essential to design new elaborated materials. The present review will focus on the pharmaceutical and biomedical application of amphiphilic Janus dendrimers. Important information for the development of novel optimized pharmaceutical formulations, such as structural classification, synthetic pathways, properties and applications, will offer the complete characterization of this type of Janus dendrimers. This work will constitute an up-to-date background for dendrimer specialists involved in designing amphiphilic Janus dendrimer-based nanomaterials for future innovations in this promising field.
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4
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Synthesis of Fluorescent, Dumbbell-Shaped Polyurethane Homo- and Heterodendrimers and Their Photophysical Properties. Int J Mol Sci 2023; 24:ijms24021662. [PMID: 36675178 PMCID: PMC9866862 DOI: 10.3390/ijms24021662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/18/2023] Open
Abstract
Fluorescent dendrimers have wide applications in biomedical and materials science. Here, we report the synthesis of fluorescent polyurethane homodendrimers and Janus dendrimers, which often pose challenges due to the inherent reactivity of isocyanates. Polyurethane dendrons (G1-G3) were synthesized via a convergent method using a one-pot multicomponent Curtius reaction as a crucial step to establish urethane linkages. The alkyne periphery of the G1-G3 dendrons was modified by a copper catalyzed azide-alkyne click reaction (CuAAC) to form fluorescent dendrons. In the reaction of the surfaces functionalized two different dendrons with a difunctional core, a mixture of three dendrimers consisting of two homodendrimers and a Janus dendrimer were obtained. The Janus dendrimer accounted for a higher proportion in the products' distribution, being as high as 93% for G3. The photophysical properties of Janus dendrimers showed the fluorescence resonance energy transfer (FRET) from one to the other fluorophore of the dendrimer. The FRET observation accompanied by a large Stokes shift make these dendrimers potential candidates for the detection and tracking of interactions between the biomolecules, as well as potential candidates for fluorescence imaging.
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5
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Image-guided drug delivery in nanosystem-based cancer therapies. Adv Drug Deliv Rev 2023; 192:114621. [PMID: 36402247 DOI: 10.1016/j.addr.2022.114621] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/18/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
The past decades have shown significant advancements in the development of solid tumor treatment. For instance, implementation of nanosystems for drug delivery has led to a reduction in side effects and improved delivery to the tumor region. However, clinical translation has faced challenges, as tumor drug levels are still considered to be inadequate. Interdisciplinary research has resulted in the development of more advanced drug delivery systems. These are coined "smart" due to the ability to be followed and actively manipulated in order to have better control over local drug release. Therefore, image-guided drug delivery can be a powerful strategy to improve drug activity at the target site. Being able to visualize the inflow of the administered smart nanosystem within the tumor gives the potential to determine the right moment to apply the facilitator to initiate drug release. Here we provide an overview of available nanosystems, imaging moieties, and imaging techniques. We discuss preclinical application of these smart drug delivery systems, the strength of image-guided drug delivery, and the future of personalized treatment.
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6
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Garello F, Svenskaya Y, Parakhonskiy B, Filippi M. Micro/Nanosystems for Magnetic Targeted Delivery of Bioagents. Pharmaceutics 2022; 14:pharmaceutics14061132. [PMID: 35745705 PMCID: PMC9230665 DOI: 10.3390/pharmaceutics14061132] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/09/2022] [Accepted: 05/19/2022] [Indexed: 01/09/2023] Open
Abstract
Targeted delivery of pharmaceuticals is promising for efficient disease treatment and reduction in adverse effects. Nano or microstructured magnetic materials with strong magnetic momentum can be noninvasively controlled via magnetic forces within living beings. These magnetic carriers open perspectives in controlling the delivery of different types of bioagents in humans, including small molecules, nucleic acids, and cells. In the present review, we describe different types of magnetic carriers that can serve as drug delivery platforms, and we show different ways to apply them to magnetic targeted delivery of bioagents. We discuss the magnetic guidance of nano/microsystems or labeled cells upon injection into the systemic circulation or in the tissue; we then highlight emergent applications in tissue engineering, and finally, we show how magnetic targeting can integrate with imaging technologies that serve to assist drug delivery.
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Affiliation(s)
- Francesca Garello
- Molecular and Preclinical Imaging Centers, Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126 Torino, Italy;
| | - Yulia Svenskaya
- Science Medical Center, Saratov State University, 410012 Saratov, Russia;
| | - Bogdan Parakhonskiy
- Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium;
| | - Miriam Filippi
- Soft Robotics Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
- Correspondence:
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8
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Zamani S, Shafeie-Ardestani M, Bitarafan-Rajabi A, Khalaj A, Sabzevari O. Synthesis, radiolabelling, and biological assessment of folic acid-conjugated G-3 99mTc-dendrimer as the breast cancer molecular imaging agent. IET Nanobiotechnol 2020; 14:628-634. [PMID: 33010140 PMCID: PMC8676428 DOI: 10.1049/iet-nbt.2020.0176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 12/16/2022] Open
Abstract
Hence, in this study, the authors aimed to develop a dendrimer-based imaging agent comprised of poly(ethylene glycol) (PEG)-citrate, technetium-99 m (99mTc), and folic acid. The dendrimer-G3 was synthesised and conjugated with folic acid, which confirmed by Fourier transform infrared, proton nuclear magnetic resonance, dynamic light scattering, and transition electron microscopy. 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-Tetrazolium-5-Carboxanilide cytotoxicity assay kit was used to measure the cellular toxicity of dendrimer. Imaging and biodistribution studies were conducted on the mice bearing tumour. The results showed that the fabricated dendrimer-G3 has a size of 90 ± 3 nm, which was increased to 100 ± 4 nm following the conjugation with folic acid. The radiostablity investigation showed that the fabricated dendrimers were stable in the human serum at various times. Toxicity assessment confirmed no cellular toxicity against HEK-293 cells at 0.25, 0.5, 1, 2, 4, and 8 mg/μl concentrations. The in vivo studies demonstrated that the synthesised dendrimers were able to provide a bright SPECT image applicable for tumour detection. In conclusion, the authors' study documented the positive aspects of PEG-citrate dendrimer conjugated with folic acid as the SPECT contrast agent for breast cancer detection.
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Affiliation(s)
- Saedeh Zamani
- Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Shafeie-Ardestani
- Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Ali Khalaj
- Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Omid Sabzevari
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, and Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran, Iran.
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9
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Najafi F, Salami-Kalajahi M, Roghani-Mamaqani H. Synthesis of amphiphilic Janus dendrimer and its application in improvement of hydrophobic drugs solubility in aqueous media. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109804] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Zhao Y, Cai F, Shen X, Su H. A high stable pH-temperature dual-sensitive liposome for tuning anticancer drug release. Synth Syst Biotechnol 2020; 5:103-110. [PMID: 32596520 PMCID: PMC7301211 DOI: 10.1016/j.synbio.2020.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/03/2020] [Accepted: 05/18/2020] [Indexed: 12/11/2022] Open
Abstract
In order to improve the targeting and availability of liposomes to cancer cells, the temperature sensitivity of 1, 2-Dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and the pH sensitivity of PASP in PASP-g-C8 are incorporated in a drug delivery system. A composite pH-temperature dual-sensitive liposomes (CPTLPs) was obtained as an efficient drug delivery system. The bionic bilayer is self-assembled by cholesterol/cationic temperature-sensitive lipids as base layer and pH-sensitive octylamine grafted poly aspartic acid (PASP-g-C8) as anchors coated outside. Cytarabine (CYT) was chosen as a model drug. SEM and DLS were used to observe the morphology characteristics of CPTLPs in different micro environment. The results demonstrated that the CPTLPs remained active in both normal (pH7.4 and 37 °C) and tumor tissues (pH 5.0 and 42 °C). As a stable colloidal system, the zeta potential of CPTSLs was -41.6 mV. In vitro drug-release experiments, the CTY encapsulated dual-sensitive liposomes, CPTSLs(+), not only have significant pH-temperature sensitivity but have more prolonged release in vitro than control groups. MTT tests results indicated that the cell apoptotic effects induced by CPTSLs(+) were nearly 30% higher than the naked drug CTY in HepG2 cells, and 20% lower apoptotic in vero cells. The CPTSLs(+) sustained a stable emulsion form, less toxic effects on normal cells, and exhibited a good pH-temperature sensitivity, thus expected to be a promising tumor targeting drug delivery.
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Affiliation(s)
- Yilin Zhao
- Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology(BUCT), 15 BeiSanhuan East Road, ChaoYang District, Beijing, 100029, PR China
| | - Fuli Cai
- Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology(BUCT), 15 BeiSanhuan East Road, ChaoYang District, Beijing, 100029, PR China
| | - Xiangyi Shen
- Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology(BUCT), 15 BeiSanhuan East Road, ChaoYang District, Beijing, 100029, PR China
| | - Haijia Su
- Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology(BUCT), 15 BeiSanhuan East Road, ChaoYang District, Beijing, 100029, PR China
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11
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Yan XY, Lin Z, Zhang W, Xu H, Guo QY, Liu Y, Luo J, Liu XY, Zhang R, Huang J, Liu T, Su Z, Zhang R, Zhang S, Liu T, Cheng SZD. Magnifying the Structural Components of Biomembranes: A Prototype for the Study of the Self-Assembly of Giant Lipids. Angew Chem Int Ed Engl 2020; 59:5226-5234. [PMID: 31957938 DOI: 10.1002/anie.201916149] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Indexed: 12/24/2022]
Abstract
How biomembranes are self-organized to perform their functions remains a pivotal issue in biological and chemical science. Understanding the self-assembly principles of lipid-like molecules hence becomes crucial. Herein, we report the mesostructural evolution of amphiphilic sphere-rod conjugates (giant lipids), and study the roles of geometric parameters (head-tail ratio and cross-sectional area) during this course. As a prototype system, giant lipids resemble natural lipidic molecules by capturing their essential features. The self-assembly behavior of two categories of giant lipids (I-shape and T-shape, a total of 8 molecules) is demonstrated. A rich variety of mesostructures is constructed in solution state and their molecular packing models are rationally understood. Giant lipids recast the phase behavior of natural lipids to a certain degree and the abundant self-assembled morphologies reveal distinct physiochemical behaviors when geometric parameters deviate from natural analogues.
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Affiliation(s)
- Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Zhiwei Lin
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Wei Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Hui Xu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Qing-Yun Guo
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Yuchu Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Jiancheng Luo
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Xian-You Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Rongchun Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Jiahao Huang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Tong Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Zebin Su
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Ruimeng Zhang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Shuailin Zhang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Tianbo Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
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12
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Yan X, Lin Z, Zhang W, Xu H, Guo Q, Liu Y, Luo J, Liu X, Zhang R, Huang J, Liu T, Su Z, Zhang R, Zhang S, Liu T, Cheng SZD. Magnifying the Structural Components of Biomembranes: A Prototype for the Study of the Self‐Assembly of Giant Lipids. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916149] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao‐Yun Yan
- South China Advanced Institute for Soft Matter Science and TechnologySchool of Molecular Science and EngineeringSouth China University of Technology Guangzhou 510640 China
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Zhiwei Lin
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Wei Zhang
- South China Advanced Institute for Soft Matter Science and TechnologySchool of Molecular Science and EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Hui Xu
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Qing‐Yun Guo
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Yuchu Liu
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Jiancheng Luo
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Xian‐You Liu
- South China Advanced Institute for Soft Matter Science and TechnologySchool of Molecular Science and EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Rongchun Zhang
- South China Advanced Institute for Soft Matter Science and TechnologySchool of Molecular Science and EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Jiahao Huang
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Tong Liu
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Zebin Su
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Ruimeng Zhang
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Shuailin Zhang
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Tianbo Liu
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
| | - Stephen Z. D. Cheng
- South China Advanced Institute for Soft Matter Science and TechnologySchool of Molecular Science and EngineeringSouth China University of Technology Guangzhou 510640 China
- Department of Polymer ScienceCollege of Polymer Science and Polymer EngineeringThe University of Akron Akron OH 44325-3909 USA
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13
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Laskar P, Somani S, Campbell SJ, Mullin M, Keating P, Tate RJ, Irving C, Leung HY, Dufès C. Camptothecin-based dendrimersomes for gene delivery and redox-responsive drug delivery to cancer cells. NANOSCALE 2019; 11:20058-20071. [PMID: 31612185 DOI: 10.1039/c9nr07254c] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Combination therapy involving chemotherapeutic drugs and genes is emerging as a promising strategy to provide a synergistic therapeutic effect, to overcome drug resistance while reducing the severe side effects associated with conventional chemotherapeutic drugs. However, the lack of nanomedicines able to simultaneously carry anti-cancer drugs and nucleic acids limits the application of this therapeutic strategy. To overcome this issue, we proposed to synthesize a pro-drug dendrimer by conjugating the PEGylated, positively charged generation 3-diaminobutyric polypropylenimine dendrimer to the anti-cancer drug camptothecin with a redox-sensitive disulphide linkage, and evaluate its efficacy to co-deliver the complexed DNA and camptothecin to cancer cells. This PEGylated pro-drug dendrimer was found to spontaneously self-assemble into cationic (∼3-5 mV) vesicles at pH 7.4, at a critical aggregation concentration of about 200 μg mL-1. These vesicles (dendrimersomes) became smaller (150-200 nm) with increasing dendrimer concentration and remained stable over 7 days. They were able to release about 70% of the conjugated camptothecin in presence of 50 mM glutathione (equivalent to the intracellular environment of tumor tissue). They could also condense more than 85% of the DNA at dendrimer : DNA weight ratios of 5 : 1 and higher. DNA condensation occurred instantly and was found to be stable for at least 24 h. This led to an enhanced cellular uptake of DNA (by up to 1.6-fold) and increased gene transfection (by up to 2.4-fold) in prostate cancer cells in comparison with the unmodified dendrimer. These novel dendrimersomes are therefore promising for single carrier-based combination cancer therapy.
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Affiliation(s)
- Partha Laskar
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Sukrut Somani
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Sara Jane Campbell
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Margaret Mullin
- College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Patricia Keating
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Rothwelle J Tate
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Craig Irving
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Hing Y Leung
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Christine Dufès
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
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14
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Supramolecular redox-responsive substrate carrier activity of a ferrocenyl Janus device. J Inorg Biochem 2019; 193:31-41. [DOI: 10.1016/j.jinorgbio.2018.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/28/2018] [Accepted: 12/30/2018] [Indexed: 12/15/2022]
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15
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Mu S, Liu W, Ling Q, Liu X, Gu H. Ferrocenyl amphiphilic Janus dendrimers as redox‐responsive micellar carriers. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shengdong Mu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Wentao Liu
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Qiangjun Ling
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
| | - Xiong Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Haibin Gu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
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16
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Laskar P, Somani S, Altwaijry N, Mullin M, Bowering D, Warzecha M, Keating P, Tate RJ, Leung HY, Dufès C. Redox-sensitive, cholesterol-bearing PEGylated poly(propylene imine)-based dendrimersomes for drug and gene delivery to cancer cells. NANOSCALE 2018; 10:22830-22847. [PMID: 30488937 DOI: 10.1039/c8nr08141g] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Stimuli-responsive nanocarriers have attracted increased attention as materials that can facilitate drug and gene delivery in cancer therapy. The present study reports the development of redox-sensitive dendrimersomes comprising disulfide-linked cholesterol-bearing PEGylated dendrimers, which can be used as drug and gene delivery systems. Two disulfide-linked cholesterol-bearing PEGylated generation 3 diaminobutyric polypropylenimine dendrimers have been successfully synthesized via an in situ two-step reaction. They were able to spontaneously self-assemble into stable, cationic, nanosized vesicles (or dendrimersomes) with lower critical aggregation concentration values for high-cholesterol-bearing vesicles. These dendrimersomes were able to entrap both hydrophilic and hydrophobic dyes, and they also showed a redox-responsive sustained release of the entrapped guests in the presence of a glutathione concentration similar to that of a cytosolic reducing environment. The high-cholesterol-bearing dendrimersomes were found to have a higher melting enthalpy, increased adsorption tendency on mica surface, entrapping ability for a larger amount of hydrophobic drugs, and increased resistance to redox-responsive environments in comparison with their low-cholesterol counterpart. In addition, both dendrimersomes were able to condense more than 85% of the DNA at all the tested ratios for the low-cholesterol vesicles, and at dendrimer : DNA weight ratios of 1 : 1 and higher for the high-cholesterol vesicles. These vesicles resulted in an enhanced cellular uptake of DNA, by up to 15-fold when compared with naked DNA with low-cholesterol vesicles. As a result, they increased the gene transfection on the PC-3 prostate cancer cell line, with the highest transfection being obtained with low-cholesterol vesicle complexes at a dendrimer : DNA weight ratio of 5 : 1 and high-cholesterol vesicle complexes at a dendrimer : DNA weight ratio of 10 : 1. These transfection levels were about 5-fold higher than those observed when treated with naked DNA. These cholesterol-bearing PEGylated dendrimer-based vesicles are, therefore, promising as redox-sensitive drugs and gene delivery systems for potential applications in combination cancer therapies.
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Affiliation(s)
- Partha Laskar
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Sukrut Somani
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Najla Altwaijry
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Margaret Mullin
- College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Deborah Bowering
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK. and CMAC Future Manufacturing Research Hub, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow G1 1RD, UK
| | - Monika Warzecha
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK. and CMAC Future Manufacturing Research Hub, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow G1 1RD, UK
| | - Patricia Keating
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Rothwelle J Tate
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Hing Y Leung
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Christine Dufès
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
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Abstract
Nanotechnology-based imaging is expected to bring breakthroughs in cancer diagnosis by improving imaging sensitivity and specificity while reducing toxicity. Here, we developed an innovative nanosystem for positron emission tomography (PET) imaging based on a self-assembling amphiphilic dendrimer. This dendrimer assembled spontaneously into uniform supramolecular nanomicelles with abundant PET reporting units on the surface. By harnessing both dendrimeric multivalence and the “enhanced permeation and retention” (EPR) effect, this dendrimer nanosystem effectively accumulated in tumors, leading to exceedingly sensitive and specific imaging of various tumors, especially those that are otherwise undetectable using the clinical gold reference 2-fluorodeoxyglucose ([18F]FDG). This study illustrates the power of nanotechnology based on self-assembling dendrimers to provide an effective platform for bioimaging and related biomedical applications. Bioimaging plays an important role in cancer diagnosis and treatment. However, imaging sensitivity and specificity still constitute key challenges. Nanotechnology-based imaging is particularly promising for overcoming these limitations because nanosized imaging agents can specifically home in on tumors via the “enhanced permeation and retention” (EPR) effect, thus resulting in enhanced imaging sensitivity and specificity. Here, we report an original nanosystem for positron emission tomography (PET) imaging based on an amphiphilic dendrimer, which bears multiple PET reporting units at the terminals. This dendrimer is able to self-assemble into small and uniform nanomicelles, which accumulate in tumors for effective PET imaging. Benefiting from the combined dendrimeric multivalence and EPR-mediated passive tumor targeting, this nanosystem demonstrates superior imaging sensitivity and specificity, with up to 14-fold increased PET signal ratios compared with the clinical gold reference 2-fluorodeoxyglucose ([18F]FDG). Most importantly, this dendrimer system can detect imaging-refractory low–glucose-uptake tumors that are otherwise undetectable using [18F]FDG. In addition, it is endowed with an excellent safety profile and favorable pharmacokinetics for PET imaging. Consequently, this dendrimer nanosystem constitutes an effective and promising approach for cancer imaging. Our study also demonstrates that nanotechnology based on self-assembling dendrimers provides a fresh perspective for biomedical imaging and cancer diagnosis.
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Selin M, Nummelin S, Deleu J, Ropponen J, Viitala T, Lahtinen M, Koivisto J, Hirvonen J, Peltonen L, Kostiainen MA, Bimbo LM. High-Generation Amphiphilic Janus-Dendrimers as Stabilizing Agents for Drug Suspensions. Biomacromolecules 2018; 19:3983-3993. [PMID: 30207704 DOI: 10.1021/acs.biomac.8b00931] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pharmaceutical nanosuspensions are formed when drug crystals are suspended in aqueous media in the presence of stabilizers. This technology offers a convenient way to enhance the dissolution of poorly water-soluble drug compounds. The stabilizers exert their action through electrostatic or steric interactions, however, the molecular requirements of stabilizing agents have not been studied extensively. Here, four structurally related amphiphilic Janus-dendrimers were synthesized and screened to determine the roles of different macromolecular domains on the stabilization of drug crystals. Physical interaction and nanomilling experiments have substantiated that Janus-dendrimers with fourth generation hydrophilic dendrons were superior to third generation analogues and Poloxamer 188 in stabilizing indomethacin suspensions. Contact angle and surface plasmon resonance measurements support the hypothesis that Janus-dendrimers bind to indomethacin surfaces via hydrophobic interactions and that the number of hydrophobic alkyl tails determines the adsorption kinetics of the Janus-dendrimers. The results showed that amphiphilic Janus-dendrimers adsorb onto drug particles and thus can be used to provide steric stabilization against aggregation and recrystallization. The modular synthetic route for new amphiphilic Janus-dendrimers offers, thus, for the first time a versatile platform for stable general-use stabilizing agents of drug suspensions.
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Affiliation(s)
- Markus Selin
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Sami Nummelin
- Biohybrid Materials, Department of Bioproducts and Biosystems , Aalto University , FI-00076 , Finland
| | - Jill Deleu
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland.,Faculty of Pharmaceutical Sciences , Ghent University , 9000 Ghent , Belgium
| | - Jarmo Ropponen
- VTT-Technical Research Centre of Finland Ltd , P.O. Box 1000, FI-02044 VTT Finland
| | - Tapani Viitala
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Manu Lahtinen
- Department of Chemistry , University of Jyväskylä , FI-40014 , Finland
| | - Jari Koivisto
- Department of Chemistry and Materials Science , Aalto University , FI-00076 , Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Leena Peltonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems , Aalto University , FI-00076 , Finland.,HYBER Center of Excellence, Department of Applied Physics , Aalto University , FI-00076 , Finland
| | - Luis M Bimbo
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland.,Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Glasgow , G4 ORE , United Kingdom
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19
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Liu Y, Mu S, Liu X, Ling Q, Hang C, Ruiz J, Astruc D, Gu H. Ferrocenyl Janus mixed-dendron stars and their stabilization of Au and Ag nanoparticles. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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20
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Wilner SE, Xiao Q, Graber ZT, Sherman SE, Percec V, Baumgart T. Dendrimersomes Exhibit Lamellar-to-Sponge Phase Transitions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5527-5534. [PMID: 29660277 PMCID: PMC6010174 DOI: 10.1021/acs.langmuir.8b00275] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lamellar to nonlamellar membrane shape transitions play essential roles in key cellular processes, such as membrane fusion and fission, and occur in response to external stimuli, including drug treatment and heat. A subset of these transitions can be modeled by means of thermally inducible amphiphile assemblies. We previously reported on mixtures of hydrogenated, fluorinated, and hybrid Janus dendrimers (JDs) that self-assemble into complex dendrimersomes (DMSs), including dumbbells, and serve as promising models for understanding the complexity of biological membranes. Here we show, by means of a variety of complementary techniques, that DMSs formed by single JDs or by mixtures of JDs undergo a thermally induced lamellar-to-sponge transition. Consistent with the formation of a three-dimensional bilayer network, we show that DMSs become more permeable to water-soluble fluorophores after transitioning to the sponge phase. These DMSs may be useful not only in modeling isotropic membrane rearrangements of biological systems but also in drug delivery since nonlamellar delivery vehicles can promote endosomal disruption and cargo release.
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Affiliation(s)
- Samantha E. Wilner
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Qi Xiao
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Zachary T. Graber
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Samuel E. Sherman
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Virgil Percec
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Tobias Baumgart
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
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21
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Uflyand IE, Dzhardimalieva GI. Molecular design of supramolecular polymers with chelated units and their application as functional materials. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1465567] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Igor E. Uflyand
- Department of Chemistry, Southern Federal University, Rostov-on-Don, Russian Federation
| | - Gulzhian I. Dzhardimalieva
- Laboratory of Metallopolymers, The Institute of Problems of Chemical Physics RAS, Chernogolovka, Russian Federation
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22
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Elizondo-García ME, Márquez-Miranda V, Araya-Durán I, Valencia-Gallegos JA, González-Nilo FD. Self-Assembly Behavior of Amphiphilic Janus Dendrimers in Water: A Combined Experimental and Coarse-Grained Molecular Dynamics Simulation Approach. Molecules 2018; 23:E969. [PMID: 29690495 PMCID: PMC6017225 DOI: 10.3390/molecules23040969] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 04/16/2018] [Accepted: 04/16/2018] [Indexed: 11/28/2022] Open
Abstract
Amphiphilic Janus dendrimers (JDs) are repetitively branched molecules with hydrophilic and hydrophobic components that self-assemble in water to form a variety of morphologies, including vesicles analogous to liposomes with potential pharmaceutical and medical application. To date, the self-assembly of JDs has not been fully investigated thus it is important to gain insight into its mechanism and dependence on JDs’ molecular structure. In this study, the aggregation behavior in water of a second-generation bis-MPA JD was evaluated using experimental and computational methods. Dispersions of JDs in water were carried out using the thin-film hydration and ethanol injection methods. Resulting assemblies were characterized by dynamic light scattering, confocal microscopy, and atomic force microscopy. Furthermore, a coarse-grained molecular dynamics (CG-MD) simulation was performed to study the mechanism of JDs aggregation. The obtaining of assemblies in water with no interdigitated bilayers was confirmed by the experimental characterization and CG-MD simulation. Assemblies with dendrimersome characteristics were obtained using the ethanol injection method. The results of this study establish a relationship between the molecular structure of the JD and the properties of its aggregates in water. Thus, our findings could be relevant for the design of novel JDs with tailored assemblies suitable for drug delivery systems.
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Affiliation(s)
- Mariana E Elizondo-García
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, Mexico.
| | - Valeria Márquez-Miranda
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. República 330, Santiago 8370186, Chile.
| | - Ingrid Araya-Durán
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. República 330, Santiago 8370186, Chile.
| | - Jesús A Valencia-Gallegos
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, Mexico.
| | - Fernando D González-Nilo
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. República 330, Santiago 8370186, Chile.
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Gran Bretaña 1111, Playa Ancha, Valparaíso 2360102, Chile.
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23
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Zhao L, Ling Q, Liu X, Hang C, Zhao Q, Liu F, Gu H. Multifunctional triazolylferrocenyl Janus dendron: Nanoparticle stabilizer, smart drug carrier and supramolecular nanoreactor. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4000] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Li Zhao
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Qiangjun Ling
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
| | - Xiong Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Chaodong Hang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
| | - Qiuxia Zhao
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Fangfei Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Haibin Gu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
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24
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Taabache S, Bertin A. Vesicles from Amphiphilic Dumbbells and Janus Dendrimers: Bioinspired Self-Assembled Structures for Biomedical Applications. Polymers (Basel) 2017; 9:E280. [PMID: 30970958 PMCID: PMC6432481 DOI: 10.3390/polym9070280] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/02/2017] [Accepted: 07/06/2017] [Indexed: 12/18/2022] Open
Abstract
The current review focuses on vesicles obtained from the self-assembly of two types of dendritic macromolecules, namely amphiphilic Janus dendrimers (forming dendrimersomes) and amphiphilic dumbbells. In the first part, we will present some synthetic strategies and the various building blocks that can be used to obtain dendritic-based macromolecules, thereby showing their structural versatility. We put our focus on amphiphilic Janus dendrimers and amphiphilic dumbbells that form vesicles in water but we also encompass vesicles formed thereof in organic solvents. The second part of this review deals with the production methods of these vesicles at the nanoscale but also at the microscale. Furthermore, the influence of various parameters (intrinsic to the amphiphilic JD and extrinsic-from the environment) on the type of vesicle formed will be discussed. In the third part, we will review the numerous biomedical applications of these vesicles of nano- or micron-size.
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Affiliation(s)
- Soraya Taabache
- Federal Institute for Materials Research and Testing (BAM), Department 6.0, D-12205 Berlin, Germany.
- Fraunhofer ICT-IMM, D-55129 Mainz, Germany.
| | - Annabelle Bertin
- Federal Institute for Materials Research and Testing (BAM), Department 6.0, D-12205 Berlin, Germany.
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, D-14195 Berlin, Germany.
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25
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Nummelin S, Selin M, Legrand S, Ropponen J, Seitsonen J, Nykänen A, Koivisto J, Hirvonen J, Kostiainen MA, Bimbo LM. Modular synthesis of self-assembling Janus-dendrimers and facile preparation of drug-loaded dendrimersomes. NANOSCALE 2017; 9:7189-7198. [PMID: 28513636 DOI: 10.1039/c6nr08102a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Materials and methods aimed at the next generation of nanoscale carriers for drugs and other therapeutics are currently in great demand. Yet, creating these precise molecular arrangements in a feasible and straightforward manner represents a remarkable challenge. Herein we report a modular synthetic route for amphiphilic Janus-dendrimers via a copper-catalyzed click reaction (CuAAC) and a facile procedure, using simple injection, to obtain highly uniform dendrimersomes with efficient loading of the model drug compound propranolol. The resulting assemblies were analyzed by dynamic light scattering and cryogenic transmission electron microscopy revealing the formation of unilamellar and multilamellar dendrimersomes. The formation of a bilayer structure was confirmed using cryo-TEM and confocal microscopy visualization of an encapsulated solvatochromic dye (Nile Red). The dendrimersomes reported here are tunable in size, stable over time and display robust thermal stability in aqueous media. Our results expand the scope of dendrimer-based supramolecular colloidal systems and offer the means for one-step fabrication of drug-loaded dendrimersomes in the size range of 90-200 nm, ideal for biomedical applications.
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Affiliation(s)
- Sami Nummelin
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, FI-00076, Finland.
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26
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Sherman SE, Xiao Q, Percec V. Mimicking Complex Biological Membranes and Their Programmable Glycan Ligands with Dendrimersomes and Glycodendrimersomes. Chem Rev 2017; 117:6538-6631. [PMID: 28417638 DOI: 10.1021/acs.chemrev.7b00097] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Synthetic vesicles have been assembled and coassembled from phospholipids, their modified versions, and other single amphiphiles into liposomes, and from block copolymers into polymersomes. Their time-consuming synthesis and preparation as stable, monodisperse, and biocompatible liposomes and polymersomes called for the elaboration of new synthetic methodologies. Amphiphilic Janus dendrimers (JDs) and glycodendrimers (JGDs) represent the most recent self-assembling amphiphiles capable of forming monodisperse, stable, and multifunctional unilamellar and multilamellar onion-like vesicles denoted dendrimersomes (DSs) and glycodendrimersomes (GDSs), dendrimercubosomes (DCs), glycodendrimercubosomes (GDCs), and other complex architectures. Amphiphilic JDs consist of hydrophobic dendrons connected to hydrophilic dendrons and can be thought of as monodisperse oligomers of a single amphiphile. They can be functionalized with a variety of molecules such as dyes, and, in the case of JGDs, with carbohydrates. Their iterative modular synthesis provides efficient access to sequence control at the molecular level, resulting in topologies with specific epitope sequence and density. DSs, GDSs, and other architectures from JDs and JGDs serve as powerful tools for mimicking biological membranes and for biomedical applications such as targeted drug and gene delivery and theranostics. This Review covers all aspects of the synthesis of JDs and JGDs and their biological activity and applications after assembly in aqueous media.
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Affiliation(s)
- Samuel E Sherman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
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27
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Filippi M, Catanzaro V, Patrucco D, Botta M, Tei L, Terreno E. First in vivo MRI study on theranostic dendrimersomes. J Control Release 2017; 248:45-52. [PMID: 28069551 DOI: 10.1016/j.jconrel.2017.01.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/26/2016] [Accepted: 01/04/2017] [Indexed: 11/26/2022]
Abstract
Amphiphilic Janus-dendrimers are able to self-assemble into nanosized vesicles named dendrimersomes. We recently synthesized the 3,5-C12-EG-(OH)4 dendrimer that generates dendrimersomes with very promising safety and stability profiles, that can be loaded with different contrast agents for in vivo imaging. In this contribution, nanovesicles were loaded with both the Magnetic Resonance Imaging (MRI) reporter GdDOTAGA(C18)2 and the glucocorticoid drug Prednisolone Phosphate (PLP), in order to test their effective potential as theranostic nanocarriers on murine melanoma tumour models. The incorporation of GdDOTAGA(C18)2 into the membrane resulted in dendrimersomes with a high longitudinal relaxivity (r1=39.1mM-1s-1, at 310K and 40MHz) so that, after intravenous administration, T1-weighted MRI showed a consistent contrast enhancement in the tumour area. Furthermore, the nanovesicles encapsulated PLP with good efficiency and displayed anti-tumour activity both in vitro and in vivo, thus enabling their practical use for biomedical theranostic applications.
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Affiliation(s)
- Miriam Filippi
- Centro di Imaging Molecolare e Preclinico, Dipartimento di Biotecnologie Molecolari e Scienze della Salute, Università di Torino, Via Nizza 52, 10126 Torino, Italia.
| | - Valeria Catanzaro
- Centro di Imaging Molecolare e Preclinico, Dipartimento di Biotecnologie Molecolari e Scienze della Salute, Università di Torino, Via Nizza 52, 10126 Torino, Italia.
| | - Deyssy Patrucco
- Centro di Imaging Molecolare e Preclinico, Dipartimento di Biotecnologie Molecolari e Scienze della Salute, Università di Torino, Via Nizza 52, 10126 Torino, Italia.
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15121 Alessandria, Italia.
| | - Lorenzo Tei
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15121 Alessandria, Italia.
| | - Enzo Terreno
- Centro di Imaging Molecolare e Preclinico, Dipartimento di Biotecnologie Molecolari e Scienze della Salute, Università di Torino, Via Nizza 52, 10126 Torino, Italia.
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28
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Dzhardimalieva GI, Uflyand IE. Synthetic methodologies and spatial organization of metal chelate dendrimers and star and hyperbranched polymers. Dalton Trans 2017; 46:10139-10176. [DOI: 10.1039/c7dt01916e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthetic methodologies, physico-chemical peculiarities, properties, and structure of metal chelate dendrimers and star and hyperbranched polymers are considered.
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Affiliation(s)
- Gulzhian I. Dzhardimalieva
- Laboratory of Metallopolymers
- The Institute of Problems of Chemical Physics RAS
- Chernogolovka
- 142432 Russian Federation
| | - Igor E. Uflyand
- Department of Chemistry
- Southern Federal University
- Rostov-on-Don
- 344006 Russian Federation
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29
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d'Arcy R, Burke J, Tirelli N. Branched polyesters: Preparative strategies and applications. Adv Drug Deliv Rev 2016; 107:60-81. [PMID: 27189232 DOI: 10.1016/j.addr.2016.05.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/19/2016] [Accepted: 05/06/2016] [Indexed: 10/21/2022]
Abstract
In the last 20years, the availability of precision chemical tools (e.g. controlled/living polymerizations, 'click' reactions) has determined a step change in the complexity of both the macromolecular architecture and the chemical functionality of biodegradable polyesters. A major part in this evolution has been played by the possibilities that controlled macromolecular branching offers in terms of tailored physical/biological performance. This review paper aims to provide an updated overview of preparative techniques that derive hyperbranched, dendritic, comb, grafted polyesters through polycondensation or ring-opening polymerization mechanisms.
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Sikwal DR, Kalhapure RS, Govender T. An emerging class of amphiphilic dendrimers for pharmaceutical and biomedical applications: Janus amphiphilic dendrimers. Eur J Pharm Sci 2016; 97:113-134. [PMID: 27864064 DOI: 10.1016/j.ejps.2016.11.013] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 11/03/2016] [Accepted: 11/10/2016] [Indexed: 01/18/2023]
Abstract
In recent years, a new class of dendrimer, known as Janus dendrimers (JDs), has attracted much attention due to their different structures and properties to the conventional symmetric forms. The broken symmetry of JDs offers the opportunity to form complex self-assembled materials, and presents new sets of properties that are presently inconceivable for homogeneous or symmetrical dendrimers. Due to their unique features, JDs have a promising future in pharmaceutical and biomedical fields, as seen from the recent interest in their application in conjugating multiple drugs and targeting moieties, forming supramolecular hydrogels, enabling micellar delivery systems, and preparing nano-vesicles, known as dendrimersomes, for drug encapsulation. The present paper is the first review, with an emphasis on various emerging applications of JDs, in the drug delivery and biomedical field reported so far. In addition, the paper describes different synthetic methods for producing JDs that can guide the design of new biocompatible forms with pharmacological activities, and that have the potential to be nano drug delivery vehicles. Furthermore, future studies to optimize the applications of JDs in drug delivery sciences and biomedical field to realize their potential to treat various disease conditions are identified and highlighted. Overall, this review identifies the current status of JDs in terms of their synthesis and applications, as well as the future research for their translation into macromolecules for clinical applications to solve health problems. It highlights the future combined efforts needed to be taken by dendrimer chemists, formulation scientist and microbiologists to develop novel antibacterials and nanomedicines from JDs.
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Affiliation(s)
- Dhiraj R Sikwal
- Discipline of Pharmaceutical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
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Prabakaran P, Prasad E. Janus Dendrimer from Poly(Aryl Ether) Linked PAMAM for Supergelation and Guest Release. ChemistrySelect 2016. [DOI: 10.1002/slct.201601335] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Palani Prabakaran
- Department of chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Edamana Prasad
- Department of chemistry; Indian Institute of Technology Madras; Chennai 600036 India
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Bunker A, Magarkar A, Viitala T. Rational design of liposomal drug delivery systems, a review: Combined experimental and computational studies of lipid membranes, liposomes and their PEGylation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2334-2352. [DOI: 10.1016/j.bbamem.2016.02.025] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/09/2016] [Accepted: 02/10/2016] [Indexed: 01/22/2023]
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Xiao Q, Rubien JD, Wang Z, Reed EH, Hammer DA, Sahoo D, Heiney PA, Yadavalli SS, Goulian M, Wilner SE, Baumgart T, Vinogradov SA, Klein ML, Percec V. Self-Sorting and Coassembly of Fluorinated, Hydrogenated, and Hybrid Janus Dendrimers into Dendrimersomes. J Am Chem Soc 2016; 138:12655-63. [PMID: 27580315 DOI: 10.1021/jacs.6b08069] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The modular synthesis of a library containing seven self-assembling amphiphilic Janus dendrimers is reported. Three of these molecules contain environmentally friendly chiral-racemic fluorinated dendrons in their hydrophobic part (RF), one contains achiral hydrogenated dendrons (RH), while one denoted hybrid Janus dendrimer, contains a combination of chiral-racemic fluorinated and achiral hydrogenated dendrons (RHF) in its hydrophobic part. Two Janus dendrimers contain either chiral-racemic fluorinated dendrons and a green fluorescent dye conjugated to its hydrophilic part (RF-NBD) or achiral hydrogenated and a red fluorescent dye in its hydrophilic part (RH-RhB). These RF, RH, and RHF Janus dendrimers self-assembled into unilamellar or onion-like soft vesicular dendrimersomes (DSs), with similar thicknesses to biological membranes by simple injection from ethanol solution into water or buffer. Since RF and RH dendrons are not miscible, RF-NBD and RH-RhB were employed to investigate by fluorescence microscopy the self-sorting and coassembly of RF and RH as well as of phospholipids into hybrid DSs mediated by the hybrid hydrogenated-fluorinated RHF Janus dendrimer. The hybrid RHF Janus dendrimer coassembled with both RF and RH. Three-component hybrid DSs containing RH, RF, and RHF were formed when the proportion of RHF was higher than 40%. With low concentration of RHF and in its absence, RH and RF self-sorted into individual RH or RF DSs. Phospholipids were also coassembled with hybrid RHF Janus dendrimers. The simple synthesis and self-assembly of DSs and hybrid DSs, their similar thickness with biological membranes and their imaging by fluorescence and (19)F-MRI make them important tools for synthetic biology.
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Affiliation(s)
- Qi Xiao
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Jack D Rubien
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Zhichun Wang
- Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6321, United States
| | - Ellen H Reed
- Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6321, United States
| | - Daniel A Hammer
- Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6321, United States.,Department of Chemical and Biomolecular Engineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6391, United States
| | - Dipankar Sahoo
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States.,Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6396, United States
| | - Paul A Heiney
- Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6396, United States
| | - Srujana S Yadavalli
- Department of Biology, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6313, United States
| | - Mark Goulian
- Department of Biology, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6313, United States
| | - Samantha E Wilner
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Tobias Baumgart
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Sergei A Vinogradov
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6059, United States
| | - Michael L Klein
- Institute of Computational Molecular Science, Temple University , Philadelphia, Pennsylvania 19122, United States
| | - Virgil Percec
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
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Xing P, Zhao Y. Multifunctional Nanoparticles Self-Assembled from Small Organic Building Blocks for Biomedicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:7304-7339. [PMID: 27273862 DOI: 10.1002/adma.201600906] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/17/2016] [Indexed: 06/06/2023]
Abstract
Supramolecular self-assembly shows significant potential to construct responsive materials. By tailoring the structural parameters of organic building blocks, nanosystems can be fabricated, whose performance in catalysis, energy storage and conversion, and biomedicine has been explored. Since small organic building blocks are structurally simple, easily modified, and reproducible, they are frequently employed in supramolecular self-assembly and materials science. The dynamic and adaptive nature of self-assembled nanoarchitectures affords an enhanced sensitivity to the changes in environmental conditions, favoring their applications in controllable drug release and bioimaging. Here, recent significant research advancements of small-organic-molecule self-assembled nanoarchitectures toward biomedical applications are highlighted. Functionalized assemblies, mainly including vesicles, nanoparticles, and micelles are categorized according to their topological morphologies and functions. These nanoarchitectures with different topologies possess distinguishing advantages in biological applications, well incarnating the structure-property relationship. By presenting some important discoveries, three domains of these nanoarchitectures in biomedical research are covered, including biosensors, bioimaging, and controlled release/therapy. The strategies regarding how to design and characterize organic assemblies to exhibit biomedical applications are also discussed. Up-to-date research developments in the field are provided and research challenges to be overcome in future studies are revealed.
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Affiliation(s)
- Pengyao Xing
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
- School of Chemistry and Chemical Engineering and Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan, 250100, P. R. China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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35
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Shen X, Su H. In vitro stability and cytotoxicity analysis of liposomes anchored with octylamine-graft-poly (aspartic). RSC Adv 2016. [DOI: 10.1039/c6ra08299h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Due to the polymer, octylamine-graft-poly (aspartic) (PASP-g-C8), which acted as acidic triggered molecules, liposomes anchored with PASP-g-C8 (OPLPs) could be safe and efficient pH sensitive drug carriers and target tumor cells.
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Affiliation(s)
- Xiangyi Shen
- Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology (BUCT)
- Beijing
- P. R. China
| | - Haijia Su
- Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology (BUCT)
- Beijing
- P. R. China
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Zhu Q, Yang H, Li Y, Tian Y, Wang W, Tang W, Yuan Y, Hu A. HP-DO3A-based amphiphilic MRI contrast agents and relaxation enhancement through their assembly with polyelectrolytes. J Mater Chem B 2016; 4:7241-7248. [DOI: 10.1039/c6tb01998f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
HP-DO3A-based amphiphilic magnetic resonance imaging (MRI) contrast agents show electrostatic self-assembly ability with polyelectrolytes, good biocompatibility, and significant contrast enhancement in in vivo imaging.
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Affiliation(s)
- Qin Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Heng Yang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Yuanyuan Li
- The State Key Laboratory of Bioreactor Engineering East China University of Science and Technology
- Shanghai
- China
| | - Yu Tian
- The State Key Laboratory of Bioreactor Engineering East China University of Science and Technology
- Shanghai
- China
| | - Wei Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and 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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37
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Filippi M, Remotti D, Botta M, Terreno E, Tei L. GdDOTAGA(C18)2: an efficient amphiphilic Gd(iii) chelate for the preparation of self-assembled high relaxivity MRI nanoprobes. Chem Commun (Camb) 2015; 51:17455-8. [DOI: 10.1039/c5cc06032j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MRI-nanoprobes endowed with improved relaxivity, incorporation stability and in vivo MRI efficiency were prepared using a newly synthesized amphiphilic GdDOTA-like complex.
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Affiliation(s)
- M. Filippi
- Dipartimento di Biotecnologie Molecolari e Scienze della Salute
- Centro di Imaging Molecolare e Preclinico
- Università degli Studi di Torino
- Torino
- Italy
| | - D. Remotti
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale “Amedeo Avogadro”
- Alessandria
- Italy
| | - M. Botta
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale “Amedeo Avogadro”
- Alessandria
- Italy
| | - E. Terreno
- Dipartimento di Biotecnologie Molecolari e Scienze della Salute
- Centro di Imaging Molecolare e Preclinico
- Università degli Studi di Torino
- Torino
- Italy
| | - L. Tei
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale “Amedeo Avogadro”
- Alessandria
- Italy
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