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Sansee A, Kostka L, Marcalíková A, Kudláčová J, Sedlák F, Kotrchová L, Šácha P, Etrych T, Kielar F. Iridium-based Polymeric Multifunctional Imaging Tools for Biochemistry. Chempluschem 2024; 89:e202300647. [PMID: 38217401 DOI: 10.1002/cplu.202300647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/15/2024]
Abstract
Herein, we report the development of a macromolecular multifunctional imaging tool for biological investigations, which is comprised of an N-(2-hydroxypropyl)methacrylamide backbone, iridium-based luminescent probe, glutamate carboxypeptidase II (GCPII) targeting ligand, and biotin affinity tag. The iridium luminophore is a tris-cyclometalated complex based on [Ir(ppy)3] with one of its 2-phenylpyridine ligands functionalized to allow conjugation. Synthesized macromolecular probes differed in the structure of the polymer and content of the iridium complex. The applicability of the developed imaging tools has been tested in flow cytometry (FACS) based assay, laser confocal microscopy, and fluorescence lifetime imaging microscopy (FLIM). The FACS analysis has shown that the targeted iBodies containing the iridium luminophore exhibit selective labelling of GCPII expressing cells. This observation was also confirmed in the imaging experiments with laser confocal microscopy. The FLIM experiment has shown that the iBodies with the iridium label exhibit a lifetime greater than 100 ns, which distinguishes them from typically used systems labelled with organic fluorophores exhibiting short fluorescence lifetimes. The results of this investigation indicate that the system exhibits interesting properties, which supports the development of additional biological tools utilizing the key components (iridium complexes, iBody concept), primarily focusing on the longer lifetime of the iridium emitter.
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Affiliation(s)
- Anuson Sansee
- Department of Chemistry and Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Libor Kostka
- Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám 2, 160 00, Prague, Czech Republic
| | - Adéla Marcalíková
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám 542/2, 160 00, Prague, Czech Republic
| | - Júlia Kudláčová
- Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám 2, 160 00, Prague, Czech Republic
| | - František Sedlák
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám 542/2, 160 00, Prague, Czech Republic
- Department of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08, Prague, Czech Republic
| | - Lenka Kotrchová
- Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám 2, 160 00, Prague, Czech Republic
| | - Pavel Šácha
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám 542/2, 160 00, Prague, Czech Republic
| | - Tomáš Etrych
- Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám 2, 160 00, Prague, Czech Republic
| | - Filip Kielar
- Department of Chemistry and Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok, 65000, Thailand
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Hu T, Wan C, Zhan Y, Li X, Zheng Y. Preparation and performance of biocompatible gadolinium polymer as liver-targeting magnetic resonance imaging contrast agent. J Biosci Bioeng 2024; 137:134-140. [PMID: 38195341 DOI: 10.1016/j.jbiosc.2023.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/22/2023] [Accepted: 12/24/2023] [Indexed: 01/11/2024]
Abstract
A biocompatible macromolecule-conjugated gadolinium chelate complex (PAV2-EDA-DOTA-Gd) as a new liver-specific contrast agent for magnetic resonance imaging (MRI) was synthesized and evaluated. An aspartic acid-valine copolymer was used as a carrier and ethylenediamine as a chemical linker, and the aspartic acid-valine copolymer was covalently linked to the small molecule MRI contrast agent Gd-DOTA (Dotarem) to synthesize a large molecule contrast agent. In vitro MR relaxation showed that the T1-relaxivity of PAV2-EDA-DOTA-Gd (13.7 mmol-1 L s-1) was much higher than that of the small-molecule Gd-DOTA (4.9 mmol-1 L s-1). In vivo imaging of rats showed that the enhancement effect of PAV2-EDA-DOTA-Gd (55.37 ± 2.80%) on liver imaging was 2.6 times that of Gd-DOTA (21.12 ± 3.86%), and it produced a longer imaging window time (40-70 min for PAV2-EDA-DOTA-Gd and 10-30 min for Gd-DOTA). Preliminary safety experiments, such as cell experiments and tissue sectioning, showed that PAV2-EDA-DOTA-Gd had low toxicity and satisfactory biocompatibility. The results of this study indicated that PAV2-EDA-DOTA-Gd had high potential as a liver-specific MRI contrast agent.
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Affiliation(s)
- Tingting Hu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, Jilin Province, China
| | - Chuanling Wan
- School of Science, Changchun Institute of Technology, Changchun 130012, Jilin Province, China
| | - Youyang Zhan
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin Province, China
| | - Xiaojing Li
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin Province, China
| | - Yan Zheng
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, Jilin Province, China.
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Feng Q, Chen J, Huang J, Li X, Liu X, Xiao C, Zheng X, Chen X, Li J, Gu Z, Luo K, Xiao K, Li W. A redox-responsive nanosystem to suppress chemoresistant lung cancer through targeting STAT3. J Control Release 2023; 363:349-360. [PMID: 37748583 DOI: 10.1016/j.jconrel.2023.09.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/12/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023]
Abstract
Cancer stem cells (CSCs) have been demonstrated to be involved in tumor initiation and relapse, and the presence of CSCs in the tumor tissue often leads to therapeutic failure. BBI608 has been identified to eliminate CSCs by inhibiting signal transducer and activator of transcription 3 (STAT3). In this study, we confirm that BBI608 can efficiently suppress the proliferation and migration of non-small cell lung cancer (NSCLC) cells, and specifically kill the stemness-high population in chemoresistant NSCLC cells. To improve its bioavailability and tumor accumulation, BBI608 is successfully encapsulated into redox-responsive PEGylated branched N-(2-hydroxypropyl) methacrylamide (HPMA)-deoxy cholic acid (DA) polymeric nanoparticles (BBI608-SS-NPs). The BBI608-SS-NPs can release the drug in response to high concentrations of intracellular glutathione, and exhibit cytotoxicity against lung cancer cells and CSCs comparable to the free drug BBI608. Furthermore, the BBI608-SS-NPs preferentially accumulate in tumor sites, resulting in a superior anti-tumor efficacy in both cisplatin-resistant cell line-derived xenograft (CDX) and patient-derived xenograft (PDX) models of NSCLC. Mechanistic studies demonstrate that BBI608-SS-NPs not only directly inhibit the downstream genes of the STAT3 pathway, but also indirectly inhibit the Wnt pathway. Overall, this stimuli-responsive polymeric nanoformulation of BBI608 shows great potential in the treatment of chemoresistant NSCLC by targeting CSCs.
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Affiliation(s)
- Qiyi Feng
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jie Chen
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jinxing Huang
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaojie Li
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xinyi Liu
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chunxiu Xiao
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiuli Zheng
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Frontier Medical Center, Tianfu Jincheng Laboratory, Sichuan Provincial Key Laboratory of Precision Medicine, Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu 610041, China
| | - Xuanming Chen
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jue Li
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhongwei Gu
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Frontier Medical Center, Tianfu Jincheng Laboratory, Sichuan Provincial Key Laboratory of Precision Medicine, Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu 610041, China
| | - Kui Luo
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Frontier Medical Center, Tianfu Jincheng Laboratory, Sichuan Provincial Key Laboratory of Precision Medicine, Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu 610041, China.
| | - Kai Xiao
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Frontier Medical Center, Tianfu Jincheng Laboratory, Sichuan Provincial Key Laboratory of Precision Medicine, Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu 610041, China.
| | - Weimin Li
- Department of Pulmonary and Critical Care Medicine, Precision Medicine Center, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, Department of Respiratory Medicine, and Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Frontier Medical Center, Tianfu Jincheng Laboratory, Sichuan Provincial Key Laboratory of Precision Medicine, Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu 610041, China.
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Fu S, Cai Z, Liu L, Fu X, Wu C, Du L, Xia C, Lui S, Gong Q, Song B, Ai H. Gadolinium(III) Complex-Backboned Branched Polymers as Imaging Probes for Contrast-Enhanced Magnetic Resonance Angiography. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18311-18322. [PMID: 37000117 DOI: 10.1021/acsami.3c00610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Compared to traditional branched polymers with Gd(III) chelates conjugated on their surface, branched polymers with Gd(III) chelates as the internal skeleton are considered to be a reasonable strategy for preparing efficient magnetic resonance imaging contrast agents. Herein, the Gd(III) ligand DOTA was chosen as the internal skeleton; four different molecular weights (3.5, 5.3, 8.6, and 13.1 kDa) and degrees of branching poly-DOTA branched polymers (P1, P2, P3, and P4) were synthesized by a simple "A2 + B4"-type one-pot polymerization. The Gd(III) chelates of these poly-DOTA branched polymers (P1-Gd, P2-Gd, P3-Gd, and P4-Gd) display excellent kinetic stability, which is significantly higher than those of linear Gd-DTPA and cyclic Gd-DOTA-butrol and slightly lower than that of cyclic Gd-DOTA. The T1 relaxivities of P1-Gd, P2-Gd, P3-Gd, and P4-Gd are 29.4, 38.7, 44.0, and 47.9 Gd mM-1 s-1, respectively, at 0.5 T, which are about 6-11 times higher than that of Gd-DOTA (4.4 Gd mM-1 s-1). P4-Gd was selected for in vivo magnetic resonance angiography (MRA) because of its high kinetic stability, T1 relaxivity, and good biosafety. The results showed excellent MRA effect, sensitive detection of vascular stenosis, and prolonged observation window as compared to Gd-DOTA. Overall, Gd(III) chelates of poly-DOTA branched polymers are good candidates of MRI probes, providing a unique design strategy in which Gd chelation can occur at both the interior and surface of the poly-DOTA branched polymers, resulting in excellent relaxivity enhancement. In vivo animal MRA studies of the probe provide possibilities in discovering small vascular pathologies.
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Affiliation(s)
- Shengxiang Fu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Zhongyuan Cai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Li Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Xiaomin Fu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Changqiang Wu
- Medical Imaging Key Laboratory of Sichuan Province and School of Medical Imaging, North Sichuan Medical College, Nanchong, 637000, China
| | - Liang Du
- Medical Imaging Key Laboratory of Sichuan Province and School of Medical Imaging, North Sichuan Medical College, Nanchong, 637000, China
| | - Chunchao Xia
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Su Lui
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu 610041, China
- Psychoradiology Research Unit of Chinese Academy of Medical Sciences, Sichuan University, Chengdu 610041, China
| | - Bin Song
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hua Ai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
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Zhang X, Wang X, Li Z, Du J, Xiao X, Pan D, Zhang H, Tian X, Gong Q, Gu Z, Luo K. Lactose-modified enzyme-sensitive branched polymers as a nanoscale liver cancer-targeting MRI contrast agent. NANOSCALE 2023; 15:809-819. [PMID: 36533522 DOI: 10.1039/d2nr04020d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Signal enhancement of magnetic resonance imaging (MRI) in the diseased region is dependent on the molecular structure of the MRI contrast agent. In this study, a macromolecular contrast agent, Branched-LAMA-DOTA-Cy5.5-Gd (BLDCGd), was prepared to target liver cancer. Due to the affinity of lactose to the Asialoglycoprotein receptor (ASGPR) over-expressed on the surface of liver cancer cells, lactose was selected as the targeting moiety in the contrast agent. A cathepsin B-sensitive tetrapeptide, GFLG, was used as a linkage moiety to construct a cross-linked macromolecular structure of the contrast agent, and the contrast agent could be degraded into fragments for clearance. A small-molecular-weight molecule, DOTA-Gd, and a fluorescent dye, Cy5.5, were conjugated to the macromolecular structure via a thiol-ene click reaction. The contrast agent, BLDCGd, had a high molecular weight (81 kDa) and a small particle size (59 ± 12 nm). Its longitudinal relaxivity (12.62 mM-1 s-1) was 4-fold that of the clinical agent DTPA-Gd (3.42 mM-1 s-1). Signal enhancement of up to 184% was observed at the tumor site in an H22 cell-based mouse model. A high accumulation level of BLDCGd in the liver tumor observed from MRI was confirmed from the fluorescence images obtained from the same contrast agent. BLDCGd showed no toxicity to HUVECs and H22 cells in vitro, and low blood chemistry indexes and no distinct histopathological abnormalities were also observed in vivo after injection of BLDCGd since it could be metabolized through the kidneys according to the in vivo MRI results of major organs. Therefore, the branched macromolecule BLDCGd could have great potential as an efficacious and bio-safe nanoscale MRI contrast agent for clinical diagnosis of liver cancer.
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Affiliation(s)
- Xiaoqin Zhang
- School of Basic Medical Science, Southwest Medical University, Luzhou,646000, China
| | - Xiaoming Wang
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
- Department of Radiology, Chongqing General Hospital, No. 118, Xingguang Avenue, Liangjiang New Area, Chongqing, 401147, China
| | - Zhiqian Li
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Jun Du
- School of Basic Medical Science, Southwest Medical University, Luzhou,646000, China
| | - Xueyang Xiao
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Dayi Pan
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute Claremont, CA 91711, USA
| | - Xiaohe Tian
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Qiyong Gong
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
- Functional and Molecular Imaging Key Laboratory of Sichuan Province and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China
- Department of Radiology, West China Xiamen Hospital of Sichuan University, Xiamen, Fujian, China
| | - Zhongwei Gu
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Kui Luo
- Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
- Functional and Molecular Imaging Key Laboratory of Sichuan Province and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China
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Jin R, Fu X, Pu Y, Fu S, Liang H, Yang L, Nie Y, Ai H. Clinical translational barriers against nanoparticle-based imaging agents. Adv Drug Deliv Rev 2022; 191:114587. [PMID: 36309148 DOI: 10.1016/j.addr.2022.114587] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 09/22/2022] [Accepted: 10/20/2022] [Indexed: 01/24/2023]
Abstract
Nanoparticle based imaging agents (NIAs) have been intensively explored in bench studies. Unfortunately, only a few cases have made their ways to clinical translation. In this review, clinical trials of NIAs were investigated for understanding possible barriers behind that. First, the complexity of multifunctional NIAs is considered a main barrier because it brings uncertainty to batch-to-batch fabrication, and results in sophisticated in vivo behaviors. Second, inadequate biosafety studies slow down the translational work. Third, NIA uptake at disease sites is highly heterogeneous, and often exhibits poor targeting efficiency. Focusing on the aforementioned problems, key design parameters were analyzed including NIAs' size, composition, surface characteristics, dosage, administration route, toxicity, whole-body distribution and clearance in clinical trials. Possible strategies were suggested to overcome these barriers. Besides, regulatory guidelines as well as scale-up and reproducibility during manufacturing process were covered as they are also key factors to consider during clinical translation of NIAs.
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Affiliation(s)
- Rongrong Jin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiaomin Fu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yiyao Pu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Shengxiang Fu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Hong Liang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China; Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Li Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yu Nie
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Hua Ai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China.
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Kampmann A, Hiller W, Weberskirch R. Efficient Synthesis of Macromolecular DO3A@Gn Derivatives for Potential Application in MRI Diagnostics: From Polymer Conjugates to Polymer Nanoparticles. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200211] [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]
Affiliation(s)
- Anne‐Larissa Kampmann
- Fakultät für Chemie und Chemische Biologie Otto‐Hahn Str. 6, TU Dortmund, Otto‐Hahn Str. 6 TU, D‐44227 Dortmund Germany
| | - Wolf Hiller
- Fakultät für Chemie und Chemische Biologie Otto‐Hahn Str. 6, TU Dortmund, Otto‐Hahn Str. 6 TU, D‐44227 Dortmund Germany
| | - Ralf Weberskirch
- Fakultät für Chemie und Chemische Biologie Otto‐Hahn Str. 6, TU Dortmund, Otto‐Hahn Str. 6 TU, D‐44227 Dortmund Germany
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Li Y, Chen Z, Gu L, Duan Z, Pan D, Xu Z, Gong Q, Li Y, Zhu H, Luo K. Anticancer nanomedicines harnessing tumor microenvironmental components. Expert Opin Drug Deliv 2022; 19:337-354. [PMID: 35244503 DOI: 10.1080/17425247.2022.2050211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Small-molecular drugs are extensively used in cancer therapy, while they have issues of nonspecific distribution and consequent side effects. Nanomedicines that incorporate chemotherapeutic drugs have been developed to enhance the therapeutic efficacy of these drugs and reduce their side effects. One of the promising strategies is to prepare nanomedicines by harnessing the unique tumor microenvironment (TME). AREAS COVERED The TME contains numerous cell types that specifically express specific antibodies on the surface including tumor vascular endothelial cells, tumor-associated adipocytes, tumor-associated fibroblasts, tumor-associated immune cells and cancer stem cells. The physicochemical environment is characterized with a low pH, hypoxia, and a high redox potential resulting from tumor-specific metabolism. The intelligent nanomedicines can be categorized into two groups: the first group which is rapidly responsive to extracellular chemical/biological factors in the TME and the second one which actively and/or specifically targets cellular components in the TME. EXPERT OPINION In this paper, we review recent progress of nanomedicines by harnessing the TME and illustrate the principles and advantages of different strategies for designing nanomedicines, which are of great significance for exploring novel nanomedicines or translating current nanomedicines into clinical practice. We will discuss the challenges and prospects of preparing nanomedicines to utilize or alter the TME for achieving effective, safe anticancer treatment.
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Affiliation(s)
- Yinggang Li
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhonglan Chen
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.,Chinese Evidence-Based Medicine Centre, Cochrane China Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lei Gu
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhengyu Duan
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dayi Pan
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhuping Xu
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiyong Gong
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.,Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China
| | - Youping Li
- Chinese Evidence-Based Medicine Centre, Cochrane China Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hongyan Zhu
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kui Luo
- Laboratory of Stem Cell Biology, Department of Cardiology, Department of Radiology, Huaxi MR Research Center (HMRRC), National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.,Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China
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9
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Manouchehri S, Zarrintaj P, Saeb MR, Ramsey JD. Advanced Delivery Systems Based on Lysine or Lysine Polymers. Mol Pharm 2021; 18:3652-3670. [PMID: 34519501 DOI: 10.1021/acs.molpharmaceut.1c00474] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polylysine and materials that integrate lysine form promising drug delivery platforms. As a cationic macromolecule, a polylysine polymer electrostatically interacts with cells and is efficiently internalized, thereby enabling intracellular delivery. Although polylysine is intrinsically pH-responsive, the conjugation with different functional groups imparts smart, stimuli-responsive traits by adding pH-, temperature-, hypoxia-, redox-, and enzyme-responsive features for enhanced delivery of therapeutic agents. Because of such characteristics, polylysine has been used to deliver various cargos such as small-molecule drugs, genes, proteins, and imaging agents. Furthermore, modifying contrast agents with polylysine has been shown to improve performance, including increasing cellular uptake and stability. In this review, the use of lysine residues, peptides, and polymers in various drug delivery systems has been discussed comprehensively to provide insight into the design and robust manufacturing of lysine-based delivery platforms.
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Affiliation(s)
- Saeed Manouchehri
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, Oklahoma 74078, United States
| | - Payam Zarrintaj
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, Oklahoma 74078, United States
| | | | - Joshua D Ramsey
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, Oklahoma 74078, United States
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10
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Sembo-Backonly BS, Estour F, Gouhier G. Cyclodextrins: promising scaffolds for MRI contrast agents. RSC Adv 2021; 11:29762-29785. [PMID: 35479531 PMCID: PMC9040919 DOI: 10.1039/d1ra04084g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/24/2021] [Indexed: 11/21/2022] Open
Abstract
Magnetic resonance imaging (MRI) is a powerful tool for non-invasive, high-resolution three-dimensional medical imaging of anatomical structures such as organs and tissues. The use of contrast agents based on gadolinium chelates started in 1988 to improve the quality of the image, since researchers and industry focused their attention on the development of more efficient and stable structures. This review is about the state of the art of MRI contrast agents based on cyclodextrin scaffolds. Chemical engineering strategies are herein reported including host-guest inclusion complexation and covalent linkages. It also offers descriptions of the MRI properties and in vitro and in vivo biomedical applications of these emerging macrostructures. It highlights that these supramolecular associations can improve the image contrast, the sensitivity, and the efficiency of MRI diagnosis by targeting cancer tumors and other diseases with success proving the great potential of this natural macrocycle.
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Affiliation(s)
- Berthe Sandra Sembo-Backonly
- Normandie Université, COBRA UMR 6014, FR 3038, INSA Rouen, CNRS, IRCOF 1 Rue Tesnière 76821 Mont-Saint-Aignan France
| | - François Estour
- Normandie Université, COBRA UMR 6014, FR 3038, INSA Rouen, CNRS, IRCOF 1 Rue Tesnière 76821 Mont-Saint-Aignan France
| | - Géraldine Gouhier
- Normandie Université, COBRA UMR 6014, FR 3038, INSA Rouen, CNRS, IRCOF 1 Rue Tesnière 76821 Mont-Saint-Aignan France
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11
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Zhou M, Li L, Xie W, He Z, Li J. Synthesis of a Thermal-Responsive Dual-Modal Supramolecular Probe for Magnetic Resonance Imaging and Fluorescence Imaging. Macromol Rapid Commun 2021; 42:e2100248. [PMID: 34272782 DOI: 10.1002/marc.202100248] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/06/2021] [Indexed: 11/05/2022]
Abstract
Dual-modal imaging can integrate the advantages of different imaging technologies, which could improve the accuracy and efficiency of clinical diagnosis. Herein, a novel amphiphilic thermal-responsive copolymer obtained from three types of monomers, N-isopropyl acrylamide, 2-(acetoacetoxy) ethyl methacrylate, and propargyl methacrylate, by RAFT copolymerization, is reported. It can be grafted with β-cyclodextrin and aggregation-induced emission (AIE) luminogens tetraphenylethylene by click chemistry and Biginelli reaction. The multifunctional supramolecular polymer (P4) can be constructed by host-guest inclusion between the copolymer and the Gd-based contrast agent (CA) modified by adamantane [Ad-(DOTA-Gd)]. And it can form vesicles with a bilayer structure in aqueous which will enhance the AIE and magnetic resonance imaging effects. As fluorescent thermometer, P4 can enter HeLa cells for intracellular fluorescence imaging (FI) and is sensitive to temperature with detection limit value of 1.5 °C. As magnetic resonance CA, P4 exhibits higher relaxation compared to Magnevist, which can prolong the circulation time in vivo. In addition, Gd3+ in the polymer can be quickly released from the body by disassembly that reduced the biological toxicity. This work introduces new synthetic ideas for dual-modal probe, which has great potential for clinical diagnostic applications in bioimaging.
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Affiliation(s)
- Mi Zhou
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Li Li
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Wensheng Xie
- The Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Zejian He
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Jie Li
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
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12
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Wang X, Guo S, Li Z, Luo Q, Dai Y, Zhang H, Ye Y, Gong Q, Luo K. Amphiphilic branched polymer-nitroxides conjugate as a nanoscale agent for potential magnetic resonance imaging of multiple objects in vivo. J Nanobiotechnology 2021; 19:205. [PMID: 34243760 PMCID: PMC8272293 DOI: 10.1186/s12951-021-00951-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 07/01/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND In order to address the potential toxicity of metal-based magnetic resonance imaging (MRI) contrast agents (CAs), a concept of non-metallic MRI CAs has emerged. Currently, paramagnetic nitroxides (such as (2,2,5,5-tetramethylpyrrolidine-1-oxyl, PROXYL), (2,2,6,6-tetramethylpiperidine-1-oxide, TEMPO), etc.) are being extensively studied because their good stability and imaging mechanism are similar to metal-based contrast agents (such as Gd3+ chelate-based clinical CAs). However, a lower relaxivity and rapid in vivo metabolism of nitroxides remain to be addressed. Previous studies have demonstrated that the construction of macromolecular nitroxides contrast agents (mORCAs) is a promising solution through macromolecularization of nitroxides (i.e., use of large molecules to carry nitroxides). Macromolecular effects not only increase the stability of nitroxides by limiting their exposure to reductive substances in the body, but also improve the overall 1H water relaxation by increasing the concentration of nitroxides and slowing the molecular rotation speed. RESULTS Branched pDHPMA-mPEG-Ppa-PROXYL with a high molecular weight (MW = 160 kDa) and a nitroxides content (0.059 mmol/g) can form a nanoscale (~ 28 nm) self-assembled aggregate in a water environment and hydrophobic PROXYL can be protected by a hydrophilic outer layer to obtain strong reduction resistance in vivo. Compared with a small molecular CA (3-Carboxy-PROXYL (3-CP)), Branched pDHPMA-mPEG-Ppa-PROXYL displays three prominent features: (1) its longitudinal relaxivity (0.50 mM- 1 s- 1) is about three times that of 3-CP (0.17 mM- 1 s- 1); (2) the blood retention time of nitroxides is significantly increased from a few minutes of 3-CP to 6 h; (3) it provides long-term and significant enhancement in MR imaging of the tumor, liver, kidney and cardiovascular system (heart and aortaventralis), and this is the first report on nitroxides-based MRI CAs for imaging the cardiovascular system. CONCLUSIONS As a safe and efficient candidate metal-free magnetic resonance contrast agent, Branched pDHPMA-mPEG-Ppa-PROXYL is expected to be used not only in imaging the tumor, liver and kidney, but also the cardiovascular system, which expands the application scope of these CAs.
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Affiliation(s)
- Xiaoming Wang
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
- Department of Radiology, Chongqing General Hospital, University of Chinese Academy of Sciences (UCAS), No. 104 Pipashan Main Street, Yuzhong District, 400014, Chongqing, China
| | - Shiwei Guo
- Department of Pharmacy of the Affiliated Hospital of Southwest Medical University, Southwest Medical University, Sichuan Province, 646000, Luzhou, People's Republic of China
- Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, 646000, Luzhou, People's Republic of China
| | - Zhiqian Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Qiang Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Yan Dai
- Department of Pharmacy of the Affiliated Hospital of Southwest Medical University, Southwest Medical University, Sichuan Province, 646000, Luzhou, People's Republic of China
- Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, 646000, Luzhou, People's Republic of China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute Claremont, 91711, Claremont, CA, USA
| | - Yun Ye
- Department of Pharmacy of the Affiliated Hospital of Southwest Medical University, Southwest Medical University, Sichuan Province, 646000, Luzhou, People's Republic of China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
- Functional and Molecular Imaging Key Laboratory of Sichuan Province, Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, 610041, Chengdu, China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China.
- Functional and Molecular Imaging Key Laboratory of Sichuan Province, Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, 610041, Chengdu, China.
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13
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Hwang Y, Teoh JY, Kim SH, Kim J, Jeon S, Kim HC, Jung YS, Kim H, Choi JW, Yoo D. Simple Host-Guest Assembly for High-Resolution Magnetic Resonance Imaging of Microvasculature. ACS APPLIED MATERIALS & INTERFACES 2021; 13:27945-27954. [PMID: 34110788 DOI: 10.1021/acsami.1c06509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Magnetic resonance angiography (MRA) is an important imaging technique that can be used to identify and characterize various types of vascular diseases. However, currently used molecular contrast agents are unsuitable for MRA due to the short intravascular retention time, the whole-body distribution, and the relatively low contrast effect. In this study, we developed a vascular analysis contrast agent (i.e., VasCA) for MRA, which is a simple and biocompatible 1:1 host-guest assembly of PEGylated β-cyclodextrin and gadolinium chelate with renal clearable size and high relaxivity (r1 = 9.27 mM-1 s-1). Its biocompatibility was confirmed by in vivo animal studies as well as in vitro 3D cell culture. In a tumor-bearing rat model, VasCA circulated in the blood vessels much longer (4.3-fold increase) than gadoterate meglumine (Dotarem) and was mainly excreted by the renal system after intravenous injection. This feature of VasCA allows characterization of tumor microvasculature (e.g., feeding and draining vessels) as well as visualization of small vessels in the brain and body organs. Furthermore, after treatment with an angiogenesis inhibitor (i.e., sorafenib), VasCA revealed the vessel normalization process and allowed the assessment of viable and necrotic tumor regions. Our study provides a useful tool for diverse MRA applications, including tumor characterization, early-stage evaluation of drug efficacy, and treatment planning, as well as diagnosis of cardiovascular diseases.
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Affiliation(s)
- Yunseo Hwang
- School of Chemical and Biological Engineering, and Institute for Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Jie Ying Teoh
- School of Chemical and Biological Engineering, and Institute for Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Sou Hyun Kim
- Department of Pharmacy, College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Juhui Kim
- School of Chemical and Biological Engineering, and Institute for Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Suhwan Jeon
- School of Chemical and Biological Engineering, and Institute for Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyo-Cheol Kim
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Young-Suk Jung
- Department of Pharmacy, College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Hyeonjin Kim
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Jin Woo Choi
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Dongwon Yoo
- School of Chemical and Biological Engineering, and Institute for Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
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14
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Ding H, Wang D, Sadat A, Li Z, Hu X, Xu M, de Morais PC, Ge B, Sun S, Ge J, Chen Y, Qian Y, Shen C, Shi X, Huang X, Zhang RQ, Bi H. Single-Atom Gadolinium Anchored on Graphene Quantum Dots as a Magnetic Resonance Signal Amplifier. ACS APPLIED BIO MATERIALS 2021; 4:2798-2809. [PMID: 35014319 DOI: 10.1021/acsabm.1c00030] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A single-atom metal doped on carbonaceous nanomaterials has attracted increasing attention due to its potential applications as high-performance catalysts. However, few studies focus on the applications of such nanomaterials as nanotheranostics for simultaneous bioimaging and cancer therapy. Herein, it is pioneeringly demonstrated that the single-atom Gd anchored onto graphene quantum dots (SAGd-GQDs), with dendrite-like morphology, was successfully prepared. More importantly, the as-fabricated SAGd-GQDs exhibits a robustly enhanced longitudinal relaxivity (r1 = 86.08 mM-1 s-1) at a low Gd3+ concentration of 2 μmol kg-1, which is 25 times higher than the commercial Gd-DTPA (r1 = 3.44 mM-1 s-1). In vitro and in vivo studies suggest that the obtained SAGd-GQDs is a highly potent and contrast agent to obtain high-definition MRI, thereby opening up more opportunities for future precise clinical theranostics.
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Affiliation(s)
- Haizhen Ding
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
| | - Dong Wang
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
| | - Anwar Sadat
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
| | - Zhenzhen Li
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
| | - Xiaolong Hu
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
| | - Mingsheng Xu
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
| | - Paulo C de Morais
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China.,Catholic University of Brasília, Brasília, Distrito Federal 70790-160, Brazil.,University of Brasília, Brasília, Distrito Federal 70910-900, Brazil
| | - Binghui Ge
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Song Sun
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
| | - Jiechao Ge
- Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yan Chen
- School of Life Sciences, Anhui University, Hefei 230601, P. R. China
| | - Yinfeng Qian
- Department of Radiology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Chengliang Shen
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, P. R. China
| | - Xianyang Shi
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, P. R. China
| | - Xin Huang
- Department of Thoracic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Ren-Quan Zhang
- Department of Thoracic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Hong Bi
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei 230601, P. R. China
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15
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Berki TR, Martinelli J, Tei L, Willcock H, Butler SJ. Polymerizable Gd(iii) building blocks for the synthesis of high relaxivity macromolecular MRI contrast agents. Chem Sci 2021; 12:3999-4013. [PMID: 34163670 PMCID: PMC8179470 DOI: 10.1039/d0sc04750c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A new synthetic strategy for the preparation of macromolecular MRI contrast agents (CAs) is reported. Four gadolinium(iii) complexes bearing either one or two polymerizable methacrylamide groups were synthesized, serving as monomers or crosslinkers for the preparation of water-soluble, polymeric CAs using Reversible Addition–Fragmentation Chain Transfer (RAFT) polymerization. Using this approach, macromolecular CAs were synthesized with different architectures, including linear, hyperbranched polymers and gels. The relaxivities of the polymeric CAs were determined by NMR relaxometry, revealing an up to 5-fold increase in relaxivity (60 MHz, 310 K) for the linear polymers compared with the clinically used CA, Gd-DOTA. Moreover, hyperbranched polymers obtained from Gd(iii) crosslinkers, displayed even higher relaxivities up to 22.8 mM−1 s−1, approximately 8 times higher than that of Gd-DOTA (60 MHz, 310 K). A detailed NMRD study revealed that the enhanced relaxivities of the hyperbranched polymers were obtained by limiting the local motion of the crosslinked Gd(iii) chelate. The versatility of RAFT polymerization of Gd(iii) monomers and crosslinkers opens the doors to more advanced polymeric CAs capable of multimodal, bioresponsive or targeting properties. A new synthetic strategy for the preparation of efficient macromolecular MRI contrast agents is reported.![]()
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Affiliation(s)
- Thomas R Berki
- Department of Chemistry, Loughborough University Leicestershire LE11 3TU UK .,Department of Materials, Loughborough University Leicestershire LE11 3TU UK
| | - Jonathan Martinelli
- Department of Science and Technological Innovation, Università del Piemonte Orientale I15121 Alessandria Italy
| | - Lorenzo Tei
- Department of Science and Technological Innovation, Università del Piemonte Orientale I15121 Alessandria Italy
| | - Helen Willcock
- Department of Materials, Loughborough University Leicestershire LE11 3TU UK
| | - Stephen J Butler
- Department of Chemistry, Loughborough University Leicestershire LE11 3TU UK
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16
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Mahara A, Saito S, Yamaoka T. Visualising brain capillaries in magnetic resonance images via supramolecular self-assembly. Chem Commun (Camb) 2020; 56:11807-11810. [PMID: 33021251 DOI: 10.1039/d0cc04372a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the supramolecular self-assembly of one fluorescein and three Gd-chelate conjugated 8-arm polyethylene glycols (8-arm PEG-FGd3) for visualising the capillaries of the brain in magnetic resonance imaging (MRI).
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Affiliation(s)
- Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shin-machi, Suita, Osaka 564-8565, Japan.
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17
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Li H, Sun J, Zhu H, Wu H, Zhang H, Gu Z, Luo K. Recent advances in development of dendritic polymer-based nanomedicines for cancer diagnosis. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 13:e1670. [PMID: 32949116 DOI: 10.1002/wnan.1670] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 02/05/2023]
Abstract
Dendritic polymers have highly branched three-dimensional architectures, the fourth type apart from linear, cross-linked, and branched one. They possess not only a large number of terminal functional units and interior cavities, but also a low viscosity with weak or no entanglement. These features endow them with great potential in various biomedicine applications, including drug delivery, gene therapy, tissue engineering, immunoassay and bioimaging. Most review articles related to bio-related applications of dendritic polymers focus on their drug or gene delivery, while very few of them are devoted to their function as cancer diagnosis agents, which are essential for cancer treatment. In this review, we will provide comprehensive insights into various dendritic polymer-based cancer diagnosis agents. Their classification and preparation are presented for readers to have a precise understanding of dendritic polymers. On account of physical/chemical properties of dendritic polymers and biological properties of cancer, we will suggest a few design strategies for constructing dendritic polymer-based diagnosis agents, such as active or passive targeting strategies, imaging reporters-incorporating strategies, and/or internal stimuli-responsive degradable/enhanced imaging strategies. Their recent applications in in vitro diagnosis of cancer cells or exosomes and in vivo diagnosis of primary and metastasis tumor sites with the aid of single/multiple imaging modalities will be discussed in great detail. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Diagnostic Tools > in vivo Nanodiagnostics and Imaging Diagnostic Tools > in vitro Nanoparticle-Based Sensing.
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Affiliation(s)
- Haonan Li
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jiayu Sun
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Hongyan Zhu
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Haoxing Wu
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, California, USA
| | - Zhongwei Gu
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Kui Luo
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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18
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Mono-dispersed nano-hydroxyapatite based MRI probe with tetrahedral DNA nanostructures modification for in vitro tumor cell imaging. Anal Chim Acta 2020; 1138:141-149. [PMID: 33161975 DOI: 10.1016/j.aca.2020.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/13/2020] [Accepted: 09/03/2020] [Indexed: 12/24/2022]
Abstract
Taking advantage of the superior biocompatibility, good stability in a wide pH and temperature range, as well as its strong affinity with DNA of hydroxyapatite (HAp), tetrahedral DNA nanostructures (TDNs) conjugated with AS1411 aptamer (anti-nucleolin overexpressed on tumor cell membranes) were employed as affinity ligands to construct a novel mono-dispersed HAp based probe with Gd3+ doping (Apt-TDNs-GdHAp) for MR imaging. The adsorption of TDNs on the nano-HAp surface facilely accomplished the construction of the Apt-TDNs-GdHAp probes. Meanwhile, the use of hydrophilic TDNs not only favored the phase-transfer from the oil phase to the aqueous phase, but also enhanced the mono-dispersion of this probe due to the well-ordered distribution of TDNs on the surface of nano-HAp. Moreover, Apt-TDNs-GdHAp probe with a better mono-dispersion and crystalinity achieved twice higher longitudinal relaxivity (r1 value) than that of GdHAp synthesized by microwave-assisted method (Microwave-GdHAp), exhibiting much more excellent T1-weighted imaging performance. With the introduction of TDNs, the stability and the tumor-targeting accessibility were also greatly improved, showing its great potential for further bio-applications.
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Li H, Zeng Y, Zhang H, Gu Z, Gong Q, Luo K. Functional gadolinium-based nanoscale systems for cancer theranostics. J Control Release 2020; 329:482-512. [PMID: 32898594 DOI: 10.1016/j.jconrel.2020.08.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/25/2020] [Accepted: 08/30/2020] [Indexed: 02/07/2023]
Abstract
Cancer theranostics is a new strategy for combating cancer that integrates cancer imaging and treatment through theranostic agents to provide an efficient and safe way to improve cancer prognosis. Design and synthesis of these cancer theranostic agents are crucial since these agents are required to be biocompatible, tumor-specific, imaging distinguishable and therapeutically efficacious. In this regard, several types of gadolinium (Gd)-based nanomaterials have been introduced to combine different therapeutic agents with Gd to enhance the efficacy of therapeutic agents. At the same time, the entire treatment procedure could be monitored via imaging tools due to incorporation of Gd ions, Gd chelates and Gd/other imaging probes in the theranostic agents. This review aims to overview recent advances in the Gd-based nanomaterials for cancer theranostics and perspectives for Gd nanomaterial-based cancer theranostics are provided.
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Affiliation(s)
- Haonan Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yujun Zeng
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, CA 91711, USA
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China.
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20
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Zhang P, Wang Z, Wang Y, Wang Y, Liu C, Cao K, Lu Y, Behboodpour L, Hou Y, Gao M. An MRI contrast agent based on a zwitterionic metal-chelating polymer for hepatorenal angiography and tumor imaging. J Mater Chem B 2020; 8:6956-6963. [PMID: 32490870 DOI: 10.1039/d0tb00893a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
MRI contrast agents such as paramagnetic Gd(iii)-chelates, can improve the ability of MRI in differentiating diseased and healthy tissues, and have been widely used in clinical diagnosis. However, the enhancement effect of small molecular MRI contrast agents is unsatisfied due to their relative high rotation rates. Furthermore, the small molecular contrast agents also suffer from the short blood half-life and nonspecific extracellular diffusion in tissues, which also restricts their applications. To address these issues, we developed a macromolecular MRI contrast agent based on a zwitterionic metal-chelating polymer. Poly(acrylic acid) (PAA) was chosen as the main chain, and diethylenetriamine pentaacetic acid (DTPA) as the metal-chelating group was coupled through the carboxyl groups of PAA using diethylenetriamine (DET) as a linker. The macromolecular MRI contrast agent constructed by chelating with Gd3+ (Gd-PAA) exhibited a much higher longitudinal relaxation rate (r1) than the clinical contrast agent Gd-DTPA. Importantly, due to the stealth ability of the zwitterionic structure, Gd-PAA can reside in the blood long enough without any microvascular leakage in the extracellular space of normal tissues, which allows it to be used for precise blood MR imaging, such as hepatorenal angiography, but also for tumor imaging because of the enhanced permeability and retention (EPR) effecta. Besides, the result of long-term toxicity tests highlights the safety feature of the current contrast agent. Hence, the current contrast agent overcomes the defect of traditional small molecular Gd(iii)-based T1-weighted contrast agents and shows great prospects for future clinical applications.
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Affiliation(s)
- Peisen Zhang
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing 100190, China.
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21
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Zhou M, Ling F, Li J. A supramolecular diagnosis and treatment integrated agent: Synthesis and self-assembly of stimulus-responsive star-shaped copolymer. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109833] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Qin J, Liang G, Feng Y, Feng B, Wang G, Wu N, Zhao Y, Wei J. Synthesis of gadolinium/iron-bimetal-phenolic coordination polymer nanoparticles for theranostic applications. NANOSCALE 2020; 12:6096-6103. [PMID: 32129393 DOI: 10.1039/c9nr10020b] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Integration of diagnostic and therapeutic components into a single coordination polymer nanoparticle is desirable for theranostic applications, but still challenging. Herein, we report the synthesis of bimetal-phenolic coordination polymer nanoparticles using gadolinium nitrate and ferrous sulphate as a metal source, and plant polyphenols (i.e., tannic acid) as an organic ligand via a metal-catechol coordination assembly process. Such coordination polymers show a tunable molar ratio of Gd/Fe and high dispersibility and stability in aqueous solution. The coordination polymers reveal composition-dependent performance for longitudinal relaxivity and photothermal conversion. The longitudinal relaxivity is positively related to the molar ratio of Gd/Fe, while the photothermal performance is negatively related to the molar ratio of Gd/Fe in the coordination polymers. The coordination polymers with an optimized molar ratio of Gd/Fe exhibit an ultra-small hydrodynamic diameter (∼23 nm), a high r1 value (9.3 mM-1 s-1) with low r2/r1 (1.26) and high photothermal conversion efficiency (η = 37%). They can be used as a contrast agent for T1-weighted magnetic resonance imaging of EMT-6 tumor bearing mice, which can effectively enhance the signals of tumors. They can also effectively suppress tumor growth via photothermal therapy. This work brings new insights for the synthesis of multifunctional coordination polymer nanoparticles and extending their potential applications in theranostics.
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Affiliation(s)
- Jing Qin
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China.
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23
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Wang K, Xu J, Liu Y, Cui Z, He Z, Zheng Z, Huang X, Zhang Y. Self-assembled Angelica sinensis polysaccharide nanoparticles with an instinctive liver-targeting ability as a drug carrier for acute alcoholic liver damage protection. Int J Pharm 2020; 577:118996. [DOI: 10.1016/j.ijpharm.2019.118996] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 12/07/2019] [Accepted: 12/23/2019] [Indexed: 12/11/2022]
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24
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Kostka L, Kotrchová L, Šubr V, Libánská A, Ferreira CA, Malátová I, Lee HJ, Barnhart TE, Engle JW, Cai W, Šírová M, Etrych T. HPMA-based star polymer biomaterials with tuneable structure and biodegradability tailored for advanced drug delivery to solid tumours. Biomaterials 2020; 235:119728. [DOI: 10.1016/j.biomaterials.2019.119728] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/27/2019] [Accepted: 12/22/2019] [Indexed: 02/03/2023]
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25
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Li H, Luo Q, Zhu H, Li Z, Wang X, Roberts N, Zhang H, Gong Q, Gu Z, Luo K. An advanced micelle-based biodegradable HPMA polymer-gadolinium contrast agent for MR imaging of murine vasculatures and tumors. Polym Chem 2020. [DOI: 10.1039/d0py01133a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A biodegradable HPMA polymeric micelle-based MR contrast agent containing gadolinium (Gd3+) for imaging murine vascular structures and tumors.
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26
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Synthesis and Relaxometric Characterization of New Poly[
N
,
N
‐bis(3‐aminopropyl)glycine] (PAPGly) Dendrons Gd‐Based Contrast Agents and Their
in Vivo
Study by Using the Dynamic Contrast‐Enhanced MRI Technique at Low Field (1 T). Chem Biodivers 2019; 16:e1900322. [DOI: 10.1002/cbdv.201900322] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 09/17/2019] [Indexed: 12/15/2022]
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27
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Zhu J, Zhao L, Yang J, Chen L, Shi J, Zhao J, Shi X. 99mTc-Labeled Polyethylenimine-Entrapped Gold Nanoparticles with pH-Responsive Charge Conversion Property for Enhanced Dual Mode SPECT/CT Imaging of Cancer Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13405-13412. [PMID: 31545902 DOI: 10.1021/acs.langmuir.9b02617] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Development of tumor dual mode contrast agents is still a great challenge due to the relative low accumulation at tumor site, which result in the poor imaging efficiency. In this study, we constructed functional technetium-99m (99mTc) labeled polyethylenimine (PEI)-entrapped gold nanoparticles (Au PENs) with pH-responsive charge conversion property for enhanced single photon emission computed tomography (SPECT)/computed tomography (CT) dual mode imaging of cancer cells. PEI with amine functional groups (PEI.NH2) was successively modified with monomethyl ether and carboxyl functionalized polyethylene glycol (mPEG-COOH), maleimide and succinimidyl valerate functionalized PEG (MAL-PEG-SVA), diethylenetriaminepentaacetic dianhydride (DTPA), and fluorescein isothiocyanate (FI), and used to entrapped gold nanoparticles inside, followed by conjugation with the alkoxyphenyl acylsulfonamide (APAS) through the PEG maleimide, acetylation of the PEI leftover surface amines and 99mTc labeling. The created nanosystem with the mean Au core diameter of 3.3 nm and with a narrow size distribution displays an excellent colloidal stability and desired cytocompatibility in the investigated Au concentration range. Due to the fact that the attached APAS moieties are responsive to pH, the functionalized Au PENs with a neutral surface charge can switch to be positively charged under slightly acidic pH condition, which could improve the cellular uptake by cancer cells. With these properties, the developed functionalized Au PENs could achieve enhanced dual mode SPECT/CT imaging of cancer cells in vitro. The constructed PEI-based nanodevices may be adopted as an excellent dual mode contrast agent for SPECT/CT imaging of cancer cells of different types.
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Affiliation(s)
- Jingyi Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University , Nanjing 211816 , People's Republic of China
| | - Lingzhou Zhao
- Department of Nuclear Medicine, Shanghai General Hospital , Shanghai Jiao Tong University School of Medicine , Shanghai 200080 , People's Republic of China
| | - Junxing Yang
- School of Pharmaceutical Sciences, Nanjing Tech University , Nanjing 211816 , People's Republic of China
| | - Liang Chen
- College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , People's Republic of China
| | - Jianhui Shi
- School of Pharmaceutical Sciences, Nanjing Tech University , Nanjing 211816 , People's Republic of China
| | - Jinhua Zhao
- Department of Nuclear Medicine, Shanghai General Hospital , Shanghai Jiao Tong University School of Medicine , Shanghai 200080 , People's Republic of China
| | - Xiangyang Shi
- College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , People's Republic of China
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Wang X, Xu L, Ren Z, Fan M, Zhang J, Qi H, Xu M. A novel manganese chelated macromolecular MRI contrast agent based on O-carboxymethyl chitosan derivatives. Colloids Surf B Biointerfaces 2019; 183:110452. [PMID: 31473409 DOI: 10.1016/j.colsurfb.2019.110452] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/05/2019] [Accepted: 08/21/2019] [Indexed: 12/21/2022]
Abstract
Currently used Gd-based and Mn-based small molecular MRI contrast agents fail to meet the requirements for the long-term monitoring, and the potential safety risk under high administration dose or repeat dosing needs to be considered. In the present study, a biocompatible macromolecular magnetic resonance imaging (MRI) contrast agents based on O-carboxymethyl chitosan (CMCS), CMCS-(Mn-DTPA)n was designed and synthesized. The relaxivity of CMCS-(Mn-DTPA)n is approximately 3.5 and 5.5 times higher than that of Gd-DTPA and Mn-DPDP in aqueous solution, respectively. The MRI signal intensity in the kidney and liver of Sprague Dawley (SD) rats is significantly increased at a dose of 0.03 mM Mn/kg b.w. CMCS-(Mn-DTPA)n accompanied by a long effective imaging window. According to in vitro studies, CMCS-(Mn-DTPA)n exhibits good cellular and blood biocompatibility at the dose necessary for MRI imaging. Based on the results from in vivo studies, manganese (Mn) is completely excreted from SD rats within ten days after administration and does not exert a pathological effect on the liver. CMCS-(Mn-DTPA)n represents a potentially novel MRI contrast agent due to its excellent relaxivity, long effective imaging window and good biocompatibility.
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Affiliation(s)
- Xianghui Wang
- Shanghai Key Laboratory of Magnetic Resonance & Biophysics Lab, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Li Xu
- Shanghai Key Laboratory of Magnetic Resonance & Biophysics Lab, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China; School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhanying Ren
- Shanghai Key Laboratory of Magnetic Resonance & Biophysics Lab, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Mingxia Fan
- Shanghai Key Laboratory of Magnetic Resonance & Biophysics Lab, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Jie Zhang
- Shanghai Key Laboratory of Magnetic Resonance & Biophysics Lab, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Hongxin Qi
- Shanghai Key Laboratory of Magnetic Resonance & Biophysics Lab, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Min Xu
- Shanghai Key Laboratory of Magnetic Resonance & Biophysics Lab, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China.
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29
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Activatable NIRF/MRI dual imaging probe using bio-inspired coating of glycol chitosan on superparamagnetic iron oxide nanoparticles. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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30
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Rahimi M, Ahmadi R, Samadi Kafil H, Shafiei-Irannejad V. A novel bioactive quaternized chitosan and its silver-containing nanocomposites as a potent antimicrobial wound dressing: Structural and biological properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:360-369. [DOI: 10.1016/j.msec.2019.03.092] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/23/2019] [Accepted: 03/24/2019] [Indexed: 01/09/2023]
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31
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Jin M, Zhang Y, Gao G, Xi Q, Tong J, Zhao Y, Wu C, Zhou H, Yang Q, Yang W, Xu J. Tetraphenylporphyrin‐based dual‐functional medical agent for magnetic resonance and fluorescence imaging. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Manyu Jin
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
- Changchun Institute of Applied Chemistry, Chinese Academy of SciencesUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Yanqun Zhang
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
- University of Science and Technology of China Hefei 230026 China
| | - Ge Gao
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
- University of Science and Technology of China Hefei 230026 China
| | - Qiaoyue Xi
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
- Changchun Institute of Applied Chemistry, Chinese Academy of SciencesUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Jie Tong
- Changchun Institute of Applied Chemistry, Chinese Academy of SciencesUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Yongxia Zhao
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
| | - Cunqi Wu
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
| | - Hua Zhou
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
| | - Qiuxia Yang
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals and Guangdong Provincial Public Laboratory of Analysis and Testing Technology Guangdong Institute of Analysis Guangzhou 510070 China
| | - Wei Yang
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
| | - Jingwei Xu
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 China
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Mohammadi H, Shaterian HR. γ-Aminobutyric acid hydrochloride supported on superparamagnetic γ-Fe2O3@SiO2 as a novel heterogeneous nanocatalyst for the synthesis of 2-amino-5-alkylidene-thiazol-4-one derivatives. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-018-1527-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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33
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De Sarno F, Ponsiglione AM, Russo M, Grimaldi AM, Forte E, Netti PA, Torino E. Water-Mediated Nanostructures for Enhanced MRI: Impact of Water Dynamics on Relaxometric Properties of Gd-DTPA. Theranostics 2019; 9:1809-1824. [PMID: 31037140 PMCID: PMC6485182 DOI: 10.7150/thno.27313] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 01/19/2019] [Indexed: 02/07/2023] Open
Abstract
Recently, rational design of a new class of contrast agents (CAs), based on biopolymers (hydrogels), have received considerable attention in Magnetic Resonance Imaging (MRI) diagnostic field. Several strategies have been adopted to improve relaxivity without chemical modification of the commercial CAs, however, understanding the MRI enhancement mechanism remains a challenge. Methods: A multidisciplinary approach is used to highlight the basic principles ruling biopolymer-CA interactions in the perspective of their influence on the relaxometric properties of the CA. Changes in polymer conformation and thermodynamic interactions of CAs and polymers in aqueous solutions are detected by isothermal titration calorimetric (ITC) measurements and later, these interactions are investigated at the molecular level using NMR to better understand the involved phenomena. Water molecular dynamics of these systems is also studied using Differential Scanning Calorimetry (DSC). To observe relaxometric properties variations, we have monitored the MRI enhancement of the examined structures over all the experiments. The study of polymer-CA solutions reveals that thermodynamic interactions between biopolymers and CAs could be used to improve MRI Gd-based CA efficiency. High-Pressure Homogenization is used to obtain nanoparticles. Results: The effect of the hydration of the hydrogel structure on the relaxometric properties, called Hydrodenticity and its application to the nanomedicine field, is exploited. The explanation of this concept takes place through several key aspects underlying biopolymer-CA's interactions mediated by the water. In addition, Hydrodenticity is applied to develop Gadolinium-based polymer nanovectors with size around 200 nm with improved MRI relaxation time (10-times). Conclusions: The experimental results indicate that the entrapment of metal chelates in hydrogel nanostructures offers a versatile platform for developing different high performing CAs for disease diagnosis.
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Affiliation(s)
- Franca De Sarno
- Department of Chemical, Materials Engineering & Industrial Production, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care, CABHC, Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci 53, 80125 Naples, Italy
| | - Alfonso Maria Ponsiglione
- Department of Chemical, Materials Engineering & Industrial Production, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care, CABHC, Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci 53, 80125 Naples, Italy
| | - Maria Russo
- Department of Chemical, Materials Engineering & Industrial Production, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care, CABHC, Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci 53, 80125 Naples, Italy
| | | | - Ernesto Forte
- IRCCS SDN, Via E. Gianturco 113, 80143 Naples, Italy
| | - Paolo Antonio Netti
- Department of Chemical, Materials Engineering & Industrial Production, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care, CABHC, Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci 53, 80125 Naples, Italy
- Interdisciplinary Research Center on Biomaterials, CRIB, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Enza Torino
- Department of Chemical, Materials Engineering & Industrial Production, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care, CABHC, Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci 53, 80125 Naples, Italy
- Interdisciplinary Research Center on Biomaterials, CRIB, Piazzale Tecchio 80, 80125 Naples, Italy
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Abstract
Currently, with the rapid development of nanotechnology, novel drug delivery systems (DDSs) have made rapid progress, in which nanocarriers play an important role in the tumour treatment. In view of the conventional chemotherapeutic drugs with many restrictions such as nonspecific systemic toxicity, short half-life and low concentration in the tumour sites, stimuli-responsive DDSs can deliver anti-tumour drugs targeting to the specific sites of tumours. Owing to precise stimuli response, stimuli-responsive DDSs can control drug release, so as to improve the curative effects, reduce the damage of normal tissues and organs, and decrease the side effects of traditional anticancer drugs. At present, according to the physicochemical properties and structures of nanomaterials, they can be divided into three categories: (1) endogenous stimuli-responsive materials, including pH, enzyme and redox responsive materials; (2) exogenous stimuli-responsive materials, such as temperature, light, ultrasound and magnetic field responsive materials; (3) multi-stimuli responsive materials. This review mainly focuses on the researches and developments of these novel stimuli-responsive DDSs based on above-mentioned nanomaterials and their clinical applications.
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Affiliation(s)
- Li Li
- a Department of Oncology Minimally Invasive , Hospital of PLA, Clinical College of Anhui Medical University , Beijing , PR China.,b Institute of Military Cognitive and Brain Sciences , Beijing , PR China
| | - Wu-Wei Yang
- a Department of Oncology Minimally Invasive , Hospital of PLA, Clinical College of Anhui Medical University , Beijing , PR China
| | - Dong-Gang Xu
- b Institute of Military Cognitive and Brain Sciences , Beijing , PR China
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35
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Guo S, Xiao X, Wang X, Luo Q, Zhu H, Zhang H, Li H, Gong Q, Luo K. Reductive microenvironment responsive gadolinium-based polymers as potential safe MRI contrast agents. Biomater Sci 2019; 7:1919-1932. [PMID: 30773580 DOI: 10.1039/c8bm01103f] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A ROX and enzyme-responsive biodegradable gadolinium-based mCA was prepared, demonstrating a short gadolinium retention time and sufficient MRI contrast efficacy in tumors.
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Affiliation(s)
- Shiwei Guo
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
| | - Xueyang Xiao
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
| | - Xiaoming Wang
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
| | - Qiang Luo
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
| | - Hongyan Zhu
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
| | - Hu Zhang
- Amgen Bioprocess Centre
- Keck Graduate Institute
- USA
| | - Haonan Li
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
| | - Kui Luo
- Huaxi MR Research Center (HMRRC)
- Department of Radiology
- West China Hospital
- and National Engineering Research Center for Biomaterials
- Sichuan University
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Zu G, Cao Y, Dong J, Zhou Q, van Rijn P, Liu M, Pei R. Development of an Aptamer-Conjugated Polyrotaxane-Based Biodegradable Magnetic Resonance Contrast Agent for Tumor-Targeted Imaging. ACS APPLIED BIO MATERIALS 2018; 2:406-416. [DOI: 10.1021/acsabm.8b00639] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Guangyue Zu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Department of Biomedical Engineering, W. J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Yi Cao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Jingjin Dong
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| | - Qihui Zhou
- Department of Biomedical Engineering, W. J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Patrick van Rijn
- Department of Biomedical Engineering, W. J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, Groningen 9713 AV, The Netherlands
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| | - Min Liu
- Institute for Interdisciplinary Research, Jianghan University, Wuhan 430056, China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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Yan J, Zhang H, Cheng F, He Y, Su T, Zhang X, Zhang M, Zhu Y, Li C, Cao J, He B. Highly stable RGD/disulfide bridge-bearing star-shaped biodegradable nanocarriers for enhancing drug-loading efficiency, rapid cellular uptake, and on-demand cargo release. Int J Nanomedicine 2018; 13:8247-8268. [PMID: 30584298 PMCID: PMC6289232 DOI: 10.2147/ijn.s179906] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Stability, enhanced drug-loading efficiency (DLE), and specific accumulation of therapeutics at tumor sites remain major challenges for successful cancer therapy. PURPOSE This study describes a newly developed intelligent nanosystem that integrates stealthy, active targeting, stimulus-responsiveness, and π-π interaction properties in a single carrier, based on the multifunctional star-shaped biodegradable polyester. PATIENTS AND METHODS This highly stable, smart nanocarrier with spherical structures and a low critical micelle concentration (CMC) can provide spacious harbor and strong π-π interaction and hydrophobic interactions for hydrophobic doxorubicin (DOX). Its structure and morphology were characterized by proton nuclear magnetic resonance (1H-NMR) spectra, Fourier transform infrared (FTIR) spectra, Gel permeation chromatography (GPC), dynamic light scattering (DLS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Antitumor effciency of polymeric micelles using CCK-8 assay, and the intracellular-activated delivery system was tracked by confocal laser scanning microscopy (CLSM) and flow cytometry. RESULTS The synthesized copolymer can be self-assembled into nanoparticles with size of 50 nm and critical micellar concentration of 2.10 µg/mL. The drug-loading content of nanoparticles can be enhanced to 17.35%. Additionally, the stimulus-responsive evaluation and drug release study showed that the nanocarrier can rapidly respond to the intracellular reductive environment and dissociate for drug release. An in vitro study demonstrated that the nanocarrier can ferry doxorubicin selectively into tumor tissue, rapidly enter cancer cells, and controllably release its payload in response to an intracellular reductive environment, resulting in excellent antitumor activity in vitro. CONCLUSION This study provides a facile and versatile approach for the design of multifunctional star-shaped biodegradable polyester nanovehicles for effective cancer treatment.
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Affiliation(s)
- Jianqin Yan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Hai Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Furong Cheng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Yanmei He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Ting Su
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Xuequan Zhang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Man Zhang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yutong Zhu
- College of Chemistry, Sichuan University, Chengdu 610065, China
| | - Congrui Li
- College of Chemistry, Sichuan University, Chengdu 610065, China
| | - Jun Cao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
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Wang S, Ren W, Wang J, Jiang Z, Saeed M, Zhang L, Li A, Wu A. Black TiO 2-based nanoprobes for T 1-weighted MRI-guided photothermal therapy in CD133 high expressed pancreatic cancer stem-like cells. Biomater Sci 2018; 6:2209-2218. [PMID: 29947365 DOI: 10.1039/c8bm00454d] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
At present, transmembrane glycoprotein CD133 highly expressed pancreatic cancer stem cells (PCSCs), with the features of chemotherapeutic/radiotherapeutic resistance and exclusive tumorigenic potential, are considered as the primary cause of metastasis and recurrence in pancreatic cancer, and therefore are an effective target in the disease treatment. Furthermore, with the launch of precision medicine, multifunctional nanoprobes have been applied as an efficient strategy for the magnetic resonance imaging (MRI)-guided photothermal therapy (PTT) of pancreatic cancer. In this research, with the aim of achieving precise MRI-guided PTT in CD133 highly expressed PCSCs, novel bTiO2-Gd-CD133mAb nanoprobes were designed and successfully prepared by loading Gd-DOTA and CD133 monoclonal antibodies on black TiO2 nanoparticles. It was very interesting to find that the r1 relaxivity value of the nanoprobes was 34.394 mM-1 s-1, about 7.5 times that of commercial Magnevist (4.5624 mM-1 s-1), which indicates that the nanoprobes have good potential as MRI T1 contrast agents with excellent performance. Herein, CD133 highly expressed PANC-1 cells were selected and verified as PCSCs model. In vitro experiments demonstrated that the nanoprobes exhibited active-targeting ability in PANC-1 cells, and consequently could specially enhance T1-weighted MR imaging and 808 nm near-infrared (NIR)-triggered PTT efficiency in the PCSCs model. Our study not only provides a new strategy for the effective treatment of pancreatic cancer and its' stem cells, but also further broadens the application of black TiO2 in the field of cancer theranostics.
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Affiliation(s)
- Siqi Wang
- Department of Radiology, The Affiliated Hospital of Medical School of Ningbo University, Ningbo University School of Medicine, Ningbo, 315020, Zhejiang Province, China.
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Dai Y, Ma X, Zhang Y, Chen K, Tang JZ, Gong Q, Luo K. A biocompatible and cathepsin B sensitive nanoscale system of dendritic polyHPMA-gemcitabine prodrug enhances antitumor activity markedly. Biomater Sci 2018; 6:2976-2986. [PMID: 30255871 DOI: 10.1039/c8bm00946e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In an attempt to improve the therapeutic indices of gemcitabine (GEM), a prodrug was designed by conjugating GEM with a stimuli-responsive dendritic polyHPMA copolymer (dendritic polyHPMA-GEM) and synthesized using the one-pot method of RAFT polymerization. The prodrug with dendritic architectures was able to aggregate and form stable nanoscale systems in the order of 46 nm. The high molecular weight (HMW, 168 kDa) dendritic prodrug could biodegrade into segments of low molecular weight (LMW, 29 kDa) for excretion. The prodrug demonstrates enzyme-responsive drug release features; over 95% GEM was released from the carrier in the presence of cathepsin B within 3 h. Investigation of the cellular mechanism underlying the dendritic prodrug suggests that cytotoxicity is associated with cellular uptake and cell apoptosis. The prodrug shows good hemocompatibility and in vivo biosafety. In particular, the dendritic polymer prodrug displays high accumulation within tumors and markedly improved in vivo antitumor activity in the 4T1 murine breast cancer model compared to free GEM. The in vivo antitumor activities are characterized by a marked suppression in tumor volumes indicating much higher tumor growth inhibition (TGI, 83%) than that in GEM treatment (TGI, 36%). In addition, some tumors were eliminated. The tumor xenograft immunohistochemistry study clearly indicates that tumor apoptosis occurs through antiangiogenic effects. These results suggest that the stimuli-responsive dendritic polymer-gemcitabine has great potential as an efficient anticancer agent.
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Affiliation(s)
- Yan Dai
- Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China. and Department of Pharmacy of the Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Xuelei Ma
- Department of Biotherapy, State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yanhong Zhang
- Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Kai Chen
- Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - James Z Tang
- School of Pharmacy, University of Wolverhampton, Wolverhampton WV1 1LY, UK
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
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40
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Feng J, Luo Q, Chen Y, Li B, Luo K, Lan J, Yu Y, Zhang S. DOTA Functionalized Cross-Linked Small-Molecule Micelles for Theranostics Combining Magnetic Resonance Imaging and Chemotherapy. Bioconjug Chem 2018; 29:3402-3410. [PMID: 30200761 DOI: 10.1021/acs.bioconjchem.8b00565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Qiang Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | | | | | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
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He X, Zhang J, Li C, Zhang Y, Lu Y, Zhang Y, Liu L, Ruan C, Chen Q, Chen X, Guo Q, Sun T, Cheng J, Jiang C. Enhanced bioreduction-responsive diselenide-based dimeric prodrug nanoparticles for triple negative breast cancer therapy. Theranostics 2018; 8:4884-4897. [PMID: 30429875 PMCID: PMC6217054 DOI: 10.7150/thno.27581] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/26/2018] [Indexed: 12/15/2022] Open
Abstract
Efficient drug accumulation in tumor is essential for chemotherapy. We developed redox-responsive diselenide-based high-loading prodrug nanoparticles (NPs) for targeted triple negative breast cancer (TNBC) treatment. Method: Redox-responsive diselenide bond (Se-Se) containing dimeric prodrug (PTXD-Se) was synthesized and co-precipitated with TNBC-targeting amphiphilic copolymers to form ultra-stable NPs (uPA-PTXD NPs). The drug loading capacity and redox-responsive drug release behavior were studied. TNBC targeting effect and anti-tumor effect were also evaluated in vitro and in vivo.Results: On-demand designed paclitaxel dimeric prodrug could co-precipitate with amphiphilic copolymers to form ultra-stable uPA-PTXD NPs with high drug loading capacity. Diselenide bond (Se-Se) in uPA-PTXD NPs could be selectively cleaved by abnormally high reduced potential in tumor microenvironment, releasing prototype drug, thus contributing to improved anti-cancer efficacy. Endowed with TNBC-targeting ligand uPA peptide, uPA-PTXD NPs exhibited reduced systemic toxicity and enhanced drug accumulation in TNBC lesions, thus showed significant anti-tumor efficacy both in vitro and in vivo. Conclusion: The comprehensive advantage of high drug loading, redox-controlled drug release and targeted tumor accumulation suggests uPA-PTXD NPs as a highly promising strategy for effective TNBC treatment.
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Affiliation(s)
- Xi He
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Jinxiao Zhang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chao Li
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Yu Zhang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Yifei Lu
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Yujie Zhang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Lisha Liu
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Chunhui Ruan
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Qinjun Chen
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Xinli Chen
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Qin Guo
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Tao Sun
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W. Green Street, Urbana, Illinois 61801, United States
| | - Chen Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology, School of Pharmacy, Fudan University, Shanghai 200032, China
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Tyagi N, Song YH, De R. Recent progress on biocompatible nanocarrier-based genistein delivery systems in cancer therapy. J Drug Target 2018; 27:394-407. [PMID: 30124078 DOI: 10.1080/1061186x.2018.1514040] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Diets with naturally occuring chemopreventive agents are showing good potentials in serving dual purposes: firstly, for maintaining health, and secondly, for emerging as most puissant cost-effective strategy against chronic diseases like cancer. Genistein, one of the active soy isoflavone, is gaining attention due to its ability to impede carcinogenic processes by regulating wide range of associated molecules and signalling mechanisms. Epidemiologic and preclinical evidences suggest that sufficient consumption of soy-based food having genistein can be correlated to the reduction of cancer risk. However, certain adverse effects like poor oral bioavailability, low aqueous solubility and inefficient pharmacokinetics have pushed it down in the list of phytoconstituents currently undergoing successful clinical trials. In order to maximise the utilisation of therapeutic benefits of this phytoestrogen, suitable drug carrier designs are required. Recently, nanocarriers, mainly composed of polymeric materials, are progressively and innovatively exploited with the aim to improve pharmacokinetics and pharmacodynamics of genistein. Here, we have briefly reviewed (a) the targeted molecular mechanisms of geinstein, (b) nanopolymeric approaches opted so far in designing carriers and (c) the reasons behind their restricted clinical applications. Finally, some mechanism-based approaches are proposed presenting genistein as the future paradigm in cancer therapy.
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Affiliation(s)
- Nisha Tyagi
- a Department of Chemistry , Gwangju Institute of Science and Technology (GIST) , Gwangju , South Korea
| | - Yo Han Song
- a Department of Chemistry , Gwangju Institute of Science and Technology (GIST) , Gwangju , South Korea
| | - Ranjit De
- a Department of Chemistry , Gwangju Institute of Science and Technology (GIST) , Gwangju , South Korea
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γ-Fe2O3@SiO2@4-(sulfoamino)butanoic acid as a novel superparamagnetic nanocatalyst promoted green synthesis of 5-(aryl)-5H-spiro[diindeno[1,2-b:2′,1′-e]pyridine-11,3′-indoline]-2′,10,12-trione derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3571-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Cao Y, Zu G, Kuang Y, He Y, Mao Z, Liu M, Xiong D, Pei R. Biodegradable Nanoglobular Magnetic Resonance Imaging Contrast Agent Constructed with Host-Guest Self-Assembly for Tumor-Targeted Imaging. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26906-26916. [PMID: 30028584 DOI: 10.1021/acsami.8b08021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Gadolinium-based macromolecular magnetic resonance imaging (MRI) contrast agents (CAs) have attracted increasing interest in tumor diagnosis. However, their practical application is potentially limited because the long-term retention of gadolinium ion in vivo will induce toxicity. Here, a nanoglobular MRI contrast agent (CA) PAMAM-PG- g-s-s-DOTA(Gd) + FA was designed and synthesized on the basis of the facile host-guest interaction between β-cyclodextrin and adamantane, which initiated the self-assembly of poly(glycerol) (PG) separately conjugated with gadolinium chelates by disulfide bonds and folic acid (FA) molecule onto the surface of poly(amidoamine) (PAMAM) dendrimer, finally realizing the biodegradability and targeting specificity. The nanoglobular CA has a higher longitudinal relaxivity ( r1) than commercial gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA), showing a value of 8.39 mM-1 s-1 at 0.5 T, and presents favorable biocompatibility on the observations of cytotoxicity and tissue toxicity. Furthermore, MRI on cells and tumor-bearing mice both demonstrate the obvious targeting specificity, on the basis of which the effective contrast enhancement at tumor location was obtained. In addition, this CA exhibits the ability of cleavage to form free small-molecule gadolinium chelates and can realize minimal gadolinium retention in main organs and tissues after tumor detection. These results suggest that the biodegradable nanoglobular PAMAM-PG- g-s-s-DOTA(Gd) + FA can be a safe and efficient MRI CA for tumor diagnosis.
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Affiliation(s)
- Yi Cao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
- School of Materials Science and Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Guangyue Zu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Ye Kuang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Yilin He
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Zheng Mao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Min Liu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Dangsheng Xiong
- School of Materials Science and Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
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Song R, Zhang M, Liu Y, Cui Z, Zhang H, Tang Z, Chen X, Wu H, Yao Z, He M, Bu W. A multifunctional nanotheranostic for the intelligent MRI diagnosis and synergistic treatment of hypoxic tumor. Biomaterials 2018; 175:123-133. [DOI: 10.1016/j.biomaterials.2018.05.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/20/2018] [Accepted: 05/13/2018] [Indexed: 11/29/2022]
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Jin M, Zhang Y, Gao G, Xi Q, Yang Y, Yan L, Zhou H, Zhao Y, Wu C, Wang L, Lei Y, Yang W, Xu J. MRI Contrast Agents Based on Conjugated Polyelectrolytes and Dendritic Polymers. Macromol Rapid Commun 2018; 39:e1800258. [PMID: 30027610 DOI: 10.1002/marc.201800258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/09/2018] [Indexed: 02/28/2024]
Abstract
Three complexes of gadolinium-based on dentritic molecules are reported as magnetic resonance imaging (MRI) contrast agents. Their ligands feature four carboxylate groups, which contribute to good water solubility and a strong combination with metal ions. As a new attempt, coupling polymerization is carried out to make a combination of conjugated polyelectrolytes and dendrimers for MRI contrast agents. For comparison, mononuclear and binuclear complexes are also reported. The investigation suggests that the contrast agent with the newly designed macromolecular skeleton provides higher longitudinal relaxivity value (36.2 mm -1 s-1 ) and more visible enhancement in in vivo and in vitro MR images than the small molecular ones. In addition, extremely low cytotoxicity and main clearance via hepatobiliary are confirmed, which reduces the deterioration of chronic kidney disease. All the results indicate that these three complexes are generally applicable as promising clinical contrast agents.
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Affiliation(s)
- Manyu Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yanqun Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, University of Science and Technology of China, Changchun, 130022, P. R. China
| | - Ge Gao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, University of Science and Technology of China, Changchun, 130022, P. R. China
| | - Qiaoyue Xi
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yun Yang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, University of Science and Technology of China, Changchun, 130022, P. R. China
| | - Luomei Yan
- School of Pharmaceutical Sciences, Xinjiang Medical University, Urumqi, 830000, P. R. China
| | - Hua Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yongxia Zhao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Cunqi Wu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Lidan Wang
- College of Chemical Engineering and Material, Quanzhou Normal University, Quanzhou, 362000, P. R. China
| | - Yongqian Lei
- Guangdong Institute of Analysis, Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangzhou, 510070, P. R. China
| | - Wei Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Jingwei Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, P. R. China
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Chen X, Xu X, Li W, Sun B, Yan J, Chen C, Liu J, Qian J, Sun D. Effective Drug Carrier Based on Polyethylenimine-Functionalized Bacterial Cellulose with Controllable Release Properties. ACS APPLIED BIO MATERIALS 2018. [DOI: 10.1021/acsabm.8b00004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Jun Yan
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren Ai Road, Suzhou Industrial Park, Suzhou 215123, China
| | | | - Jian Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren Ai Road, Suzhou Industrial Park, Suzhou 215123, China
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Yuan S, Wu M, Han L, Song Y, Yuan S, Zhang Y, Wu Z, Wu Z, Qi X. Surface partially neutralized dendtric polymer demonstrating proton-triggered self-assembled aggregation for tumor therapy. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Lin LK, Wang J, Liu YL. Effective Synthesis Route for Linear and Cross-Linked Biodegradable Polyesters Using Aliphatic Meldrum's Acid Derivatives as Monomers. ACS OMEGA 2018; 3:4641-4646. [PMID: 31458684 PMCID: PMC6641637 DOI: 10.1021/acsomega.8b00309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 04/20/2018] [Indexed: 06/10/2023]
Abstract
On the basis of the reaction between ketene and alcohol groups to result in an ester linkage and Meldrum's acid as an effective precursor of ketene group, a bifunctional aliphatic Meldrum's acid compound (BisMA) is synthesized and used as a monomer to react with ethylene glycol and glycerol for the preparation of linear and cross-linked aliphatic polyesters, respectively. A 62 and 35 wt % of biodegradation fraction have been recorded on the linear and cross-linked aliphatic polyesters after an 8 week biodegradation test, respectively, to demonstrate the good biodegradability of the synthesized polyesters. In addition to conventional linear biodegradable polyesters, this synthetic route also provides a new and convenient method for preparation of cross-linked biodegradable polyesters. The types of the required monomers and reaction methods for preparation of the cross-linked biodegradable polyesters are similar to those used for conventional thermosetting resins. An integration of biodegradable polymers and thermosetting resins in polymer chemistry has been demonstrated.
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Xu W, Long H, Xu X, Fu G, Pu L, Ding L. Poly(HPMA)-DTPA/DOTA-Gd conjugates for magnetic resonance imaging. NEW J CHEM 2018. [DOI: 10.1039/c8nj04355h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Poly(HPMA)-DTPA/DOTA-Gd conjugates were fabricated, and the cytotoxicity, hemocompatibility and T1 relaxivity property were evaluated.
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Affiliation(s)
- Weibing Xu
- College of Science
- Gansu Agricultural University
- Lanzhou 730000
- P. R. China
| | - Haitao Long
- College of Science
- Gansu Agricultural University
- Lanzhou 730000
- P. R. China
| | - Xinxin Xu
- College of Life Science
- Northwest Normal University
- Lanzhou 730000
- China
| | - Guorui Fu
- College of Science
- Gansu Agricultural University
- Lanzhou 730000
- P. R. China
| | - Lumei Pu
- College of Science
- Gansu Agricultural University
- Lanzhou 730000
- P. R. China
| | - Lan Ding
- College of Life Science
- Northwest Normal University
- Lanzhou 730000
- China
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