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Lu Y, Gao X, Cao M, Wu B, Su L, Chen P, Miao J, Wang S, Xia R, Qian J. Interface crosslinked mPEG-b-PAGE-b-PCL triblock copolymer micelles with high stability for anticancer drug delivery. Colloids Surf B Biointerfaces 2020; 189:110830. [PMID: 32045844 DOI: 10.1016/j.colsurfb.2020.110830] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 01/18/2020] [Accepted: 01/25/2020] [Indexed: 01/28/2023]
Abstract
The stability of polymeric micelles is a key property for anticancer drug delivery. In this study, a novel amphiphilic triblock copolymer, methoxy poly(ethylene glycol)-b-poly(allyl glycidyl ether)-b-poly(ε-caprolactone) (mPEG-b-PAGE-b-PCL), with different hydrophobic lengths was designed and synthesized using the combination of two successive ring-opening polymerizations. The products were characterized using 1H NMR and gel permeation chromatography (GPC). The triblock copolymers could self-assemble into micelles to encapsulate doxorubicin (DOX). The diameter of the DOX-loaded micelles increased from 63 to 92 nm with increasing PCL block length in the copolymer composition. The interface of the mPEG-b-PAGE-b-PCL micelles was crosslinked by a thiol-ene reaction with 1,4-butanedithiol. The stability, drug release and in vitro cytotoxicity of the DOX-loaded micelles were studied. The results showed that the DOX-loaded micelles could be effectively endocytosed by cancer cells and have good antitumor efficacy. In addition, the crosslinked micelles (CLMs) had better tumor accumulation than the noncrosslinked micelles (NCLMs) after intravenous injection using the lipophilic dye DiR.
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Affiliation(s)
- Yujie Lu
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Xuedi Gao
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Ming Cao
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
| | - Bin Wu
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Lifen Su
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Peng Chen
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Jibin Miao
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Song Wang
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Ru Xia
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
| | - Jiasheng Qian
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
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252
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Vanderburgh J, Hill JL, Gupta MK, Kwakwa KA, Wang SK, Moyer K, Bedingfield SK, Merkel AR, d'Arcy R, Guelcher SA, Rhoades JA, Duvall CL. Tuning Ligand Density To Optimize Pharmacokinetics of Targeted Nanoparticles for Dual Protection against Tumor-Induced Bone Destruction. ACS NANO 2020; 14:311-327. [PMID: 31894963 PMCID: PMC7216559 DOI: 10.1021/acsnano.9b04571] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Breast cancer patients are at high risk for bone metastasis. Metastatic bone disease is a major clinical problem that leads to a reduction in mobility, increased risk of pathologic fracture, severe bone pain, and other skeletal-related events. The transcription factor Gli2 drives expression of parathyroid hormone-related protein (PTHrP), which activates osteoclast-mediated bone destruction, and previous studies showed that Gli2 genetic repression in bone-metastatic tumor cells significantly reduces tumor-induced bone destruction. Small molecule inhibitors of Gli2 have been identified; however, the lipophilicity and poor pharmacokinetic profile of these compounds have precluded their success in vivo. In this study, we designed a bone-targeted nanoparticle (BTNP) comprising an amphiphilic diblock copolymer of poly[(propylene sulfide)-block-(alendronate acrylamide-co-N,N-dimethylacrylamide)] [PPS-b-P(Aln-co-DMA)] to encapsulate and preferentially deliver a small molecule Gli2 inhibitor, GANT58, to bone-associated tumors. The mol % of the bisphosphonate Aln in the hydrophilic polymer block was varied in order to optimize BTNP targeting to tumor-associated bone by a combination of nonspecific tumor accumulation (presumably through the enhanced permeation and retention effect) and active bone binding. Although 100% functionalization with Aln created BTNPs with strong bone binding, these BTNPs had highly negative zeta-potential, resulting in shorter circulation time, greater liver uptake, and less distribution to metastatic tumors in bone. However, 10 mol % of Aln in the hydrophilic block generated a formulation with a favorable balance of systemic pharmacokinetics and bone binding, providing the highest bone/liver biodistribution ratio among formulations tested. In an intracardiac tumor cell injection model of breast cancer bone metastasis, treatment with the lead candidate GANT58-BTNP formulation decreased tumor-associated bone lesion area 3-fold and increased bone volume fraction in the tibiae of the mice 2.5-fold. Aln conferred bone targeting to the GANT58-BTNPs, which increased GANT58 concentration in the tumor-associated bone relative to untargeted NPs, and also provided benefit through the direct antiresorptive therapeutic function of Aln. The dual benefit of the Aln in the BTNPs was supported by the observations that drug-free Aln-containing BTNPs improved bone volume fraction in bone-tumor-bearing mice, while GANT58-BTNPs created better therapeutic outcomes than both unloaded BTNPs and GANT58-loaded untargeted NPs. These findings suggest GANT58-BTNPs have potential to potently inhibit tumor-driven osteoclast activation and resultant bone destruction in patients with bone-associated tumor metastases.
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Affiliation(s)
- Joseph Vanderburgh
- Department of Chemical and Biomolecular Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
- Center for Bone Biology , Vanderbilt University Medical Center , Nashville , Tennessee 37232 , United States
- Department of Veterans Affairs , Tennessee Valley Healthcare System , Nashville , Tennessee 37212 , United States
| | - Jordan L Hill
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Mukesh K Gupta
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Kristin A Kwakwa
- Center for Bone Biology , Vanderbilt University Medical Center , Nashville , Tennessee 37232 , United States
- Department of Veterans Affairs , Tennessee Valley Healthcare System , Nashville , Tennessee 37212 , United States
- Program in Cancer Biology , Vanderbilt University , Nashville , Tennessee 37232 , United States
| | - Sean K Wang
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Kathleen Moyer
- Interdisciplinary Graduate Program in Materials Science , Vanderbilt University , Nashville , Tennessee 37232 , United States
| | - Sean K Bedingfield
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Alyssa R Merkel
- Center for Bone Biology , Vanderbilt University Medical Center , Nashville , Tennessee 37232 , United States
- Department of Veterans Affairs , Tennessee Valley Healthcare System , Nashville , Tennessee 37212 , United States
| | - Richard d'Arcy
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Scott A Guelcher
- Department of Chemical and Biomolecular Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
- Center for Bone Biology , Vanderbilt University Medical Center , Nashville , Tennessee 37232 , United States
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Julie A Rhoades
- Center for Bone Biology , Vanderbilt University Medical Center , Nashville , Tennessee 37232 , United States
- Department of Veterans Affairs , Tennessee Valley Healthcare System , Nashville , Tennessee 37212 , United States
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
- Department of Medicine, Division of Clinical Pharmacology , Vanderbilt University Medical Center , Nashville , Tennessee 37232 , United States
| | - Craig L Duvall
- Department of Biomedical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
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253
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Li M, Li Q, Hou W, Zhang J, Ye H, Li H, Zeng D, Bai J. A redox-sensitive core-crosslinked nanosystem combined with ultrasound for enhanced deep penetration of nanodiamonds into tumors. RSC Adv 2020; 10:15252-15263. [PMID: 35495450 PMCID: PMC9052314 DOI: 10.1039/d0ra01776k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 03/22/2020] [Indexed: 01/07/2023] Open
Abstract
Nanodiamonds (NDs) as drug delivery vehicles are of great significance in anticancer therapy through enhancing drug retention. However, the major barrier to clinical application of NDs is insufficient tumor penetration owing to their strong aggregation and low passive penetration efficiency. Herein, the core-crosslinked pullulan carrier, assembled using the visible light-induced diselenide (Se–Se) bond crosslinking method for encapsulating nanodiamonds-doxorubicin (NDX), is proposed to improve monodispersity. Furthermore, the core-crosslinked diselenide bond provides the nanosystem with redox-responsive capability and improved structural stability in a physiological environment, which prevents premature drug leakage and achieves tumor site-specific controlled release. What's more, ultrasound (US) is utilized to promote nanosystem intratumoral penetration via enlarged tumor vascular endothelium cell gaps. As expected, the nanosystem combined with ultrasound can enhance anti-tumor efficacy with deep penetration and excellent retention performance in a HepG2 xenograft mouse model. This study highlights the ability of the integrated therapeutic paradigm to overcome the limitation of nanodiamonds and the potential for further application in cancer therapy. A redox-sensitive core-crosslinked nanosystem is developed as a drug vehicle combined with ultrasound for efficient enhanced deep penetration of nanodiamonds into tumors.![]()
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Affiliation(s)
- Meixuan Li
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
| | - Qianyan Li
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
| | - Wei Hou
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
| | - Jingni Zhang
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
| | - Hemin Ye
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
| | - Huanan Li
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
| | - Deping Zeng
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
| | - Jin Bai
- State Key Laboratory of Ultrasound in Medicine and Engineering
- College of Biomedical Engineering
- Chongqing Medical University
- Chongqing 400016
- China
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254
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Kuang G, Zhang Q, He S, Wu Y, Huang Y. Reduction-responsive disulfide linkage core-cross-linked polymeric micelles for site-specific drug delivery. Polym Chem 2020. [DOI: 10.1039/d0py00987c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reduction-responsive disulfide linkage core-cross-linked polymeric micelles (CLM@DOX) were developed for effective site-specific doxorubicin delivery.
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Affiliation(s)
- Gaizhen Kuang
- Department of Medical Oncology
- Affiliated Cancer Hospital of Zhengzhou University
- Zhengzhou 450008
- P. R. China
| | - Qingfei Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Shasha He
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Yanjuan Wu
- Shandong Provincial Key Laboratory of Molecular Engineering
- Qilu University of Technology-Shandong Academy of Science
- Ji'nan 250353
- PR China
| | - Yubin Huang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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255
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Yin F, Wang Z, Jiang Y, Zhang T, Wang Z, Hua Y, Song Z, Liu J, Xu W, Xu J, Cai Z, Ding J. Reduction-responsive polypeptide nanomedicines significantly inhibit progression of orthotopic osteosarcoma. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 23:102085. [DOI: 10.1016/j.nano.2019.102085] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 07/27/2019] [Accepted: 08/09/2019] [Indexed: 12/15/2022]
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256
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Huerta-Ángeles G, Brandejsová M, Kopecká K, Ondreáš F, Medek T, Židek O, Kulhánek J, Vagnerová H, Velebný V. Synthesis and Physicochemical Characterization of Undecylenic Acid Grafted to Hyaluronan for Encapsulation of Antioxidants and Chemical Crosslinking. Polymers (Basel) 2019; 12:E35. [PMID: 31878337 PMCID: PMC7023664 DOI: 10.3390/polym12010035] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/05/2019] [Accepted: 12/21/2019] [Indexed: 12/31/2022] Open
Abstract
In this work, a new amphiphilic derivative made of 10-undecylenic acid grafted to hyaluronan was prepared by mixed anhydrides. The reaction conditions were optimized, and the effect of the molecular weight (Mw), reaction time, and the molar ratio of reagents was explored. Using this methodology, a degree of substitution up to 50% can be obtained. The viscosity of the conjugate can be controlled by varying the substitution degree. The physicochemical characterization of the modified hyaluronan was performed by infrared spectroscopy, Nuclear Magnetic Resonance, Size-Exclusion Chromatography combined with Multiangle Laser Light Scattering (SEC-MALLS), and rheology. The low proton motility and self-aggregation of the amphiphilic conjugate produced overestimation of the degree of substitution. Thus, a novel method using proton NMR was developed. Encapsulation of model hydrophobic guest molecules, coenzyme Q10, curcumin, and α-tocopherol into the micellar core was also investigated by solvent evaporation. HA-UDA amphiphiles were also shown to self-assemble into spherical nanostructures (about 300 nm) in water as established by dynamic light scattering. Furthermore, HA-UDA was crosslinked via radical polymerization mediated by ammonium persulphate (APS/TEMED). The cross-linking was also tested by photo-polymerization catalyzed by Irgacure 2959. The presence of the hydrophobic moiety decreases the swelling degree of the prepared hydrogels compared to methacrylated-HA. Here, we report a novel hybrid hyaluronan (HA) hydrogel system of physically encapsulated active compounds and chemical crosslinking for potential applications in drug delivery.
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257
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Tena-Solsona M, Marson D, Rodrigo AC, Bromfield SM, Escuder B, Miravet JF, Apostolova N, Laurini E, Pricl S, Smith DK. Self-assembled multivalent (SAMul) ligand systems with enhanced stability in the presence of human serum. Biomater Sci 2019; 7:3812-3820. [PMID: 31264671 DOI: 10.1039/c9bm00745h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembled cationic micelles are an attractive platform for binding biologically-relevant polyanions such as heparin. This has potential applications in coagulation control, where a synthetic heparin rescue agent could be a useful replacement for protamine, which is in current clinical use. However, micelles can have low stability in human serum and unacceptable toxicity profiles. This paper reports the optimisation of self-assembled multivalent (SAMul) arrays of amphiphilic ligands to bind heparin in competitive conditions. Specifically, modification of the hydrophobic unit kinetically stabilises the self-assembled nanostructures, preventing loss of binding ability in the presence of human serum - cholesterol hydrophobic units significantly outperform systems with a simple aliphatic chain. It is demonstrated that serum albumin disrupts the binding thermodynamics of the latter system. Molecular simulation shows aliphatic lipids can more easily be removed from the self-assembled nanostructures than the cholesterol analogues. This agrees with the experimental observation that the cholesterol-based systems undergo slower disassembly and subsequent degradation via ester hydrolysis. Furthermore, by stabilising the SAMul nanostructures, toxicity towards human cells is decreased and biocompatibility enhanced, with markedly improved survival of human hepatoblastoma cells in an MTT assay.
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Affiliation(s)
- Marta Tena-Solsona
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
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259
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Zhao F, Liu X, Dong A, Deng L, Wang W, Zhang J. Self-assembly and self-delivery nanodrug of bortezomib: a simple approach to achieve the trade-off between functionality and druggability. J Mater Chem B 2019; 7:7490-7493. [DOI: 10.1039/c9tb02174d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A pH-responsive self-delivery nanosystem with high drug loading and outstanding stability was constructed via a simple method to deliver bortezomib.
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Affiliation(s)
- Fuli Zhao
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Xiang Liu
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Anjie Dong
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Liandong Deng
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Tianjin 300192
- China
| | - Jianhua Zhang
- Department of Polymer Science and Engineering
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
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