1
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Ma G, Braatz D, Tang P, Yang Y, Quaas E, Ludwig K, Ma N, Sun H, Zhong Z, Haag R. Polyglycerol-Shelled Reduction-Sensitive Polymersome for DM1 Delivery to HER-2-Positive Breast Cancer. Biomacromolecules 2024; 25:4440-4448. [PMID: 38907698 DOI: 10.1021/acs.biomac.4c00512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2024]
Abstract
Supramolecular delivery systems with the prolonged circulation, the potential for diverse functionalization, and few toxin-related limitations have been extensively studied. For the present study, we constructed a linear polyglycerol-shelled polymersome attached with the anti-HER-2-antibody trastuzumab. We then covalently loaded the anticancer drug DM1 in the polymersome via dynamic disulfide bonding. The resulted trastuzumab-polymersome-DM1 (Tra-PS-DM1) exhibits a mean size of 95.3 nm and remarkable drug loading efficiency % of 99.3%. In addition to its superior stability, we observed the rapid release of DM1 in a controlled manner under reductive conditions. Compared to the native polymersomes, Tra-PS-DM1 has shown greatly improved cellular uptake and significantly reduced IC50 up to 17-fold among HER-2-positive cancer cells. Moreover, Tra-PS-DM1 demonstrated superb growth inhibition of HER-2-positive tumoroids; specifically, BT474 tumoroids shrunk up to 62% after 12 h treatment. With exceptional stability and targetability, the PG-shelled Tra-PS-DM1 appears as an attractive approach for HER-2-positive tumor treatment.
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Affiliation(s)
- Guoxin Ma
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Daniel Braatz
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Peng Tang
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Yian Yang
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Elisa Quaas
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Kai Ludwig
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Nan Ma
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
- Institute of Active Polymers, Helmholtz-Zentrum HEREON, Teltow 14513, Germany
| | - Huanli Sun
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, PR China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, PR China
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
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2
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Jiang Y, Zhan D, Zhang M, Zhu Y, Zhong H, Wu Y, Tan Q, Dong X, Zhang D, Hadjichristidis N. Strong and Ultra-tough Ionic Hydrogel Based on Hyperbranched Macro-Cross-linker: Influence of Topological Structure on Properties. Angew Chem Int Ed Engl 2023; 62:e202310832. [PMID: 37646238 DOI: 10.1002/anie.202310832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/01/2023]
Abstract
The application of hydrogels often suffers from their inherent limitation of poor mechanical properties. Here, a carboxyl-functionalized and acryloyl-terminated hyperbranched polycaprolactone (PCL) was synthesized and used as a macro-cross-linker to fabricate a super strong and ultra-tough ionic hydrogel. The terminal acryloyl groups of hyperbranched PCL are chemically incorporated into the network to form covalent cross-links, which contribute to robust networks. Meanwhile, the hydrophobic domains formed by the spontaneous aggregation of PCL chains and coordination bonds between Fe3+ and COO- groups serve as dynamic non-covalent cross-links, which enhance the energy dissipation ability. Especially, the influence of the hyperbranched topological structure of PCL on hydrogel properties has been well investigated, exhibiting superior strengthening and toughening effects compared to the linear one. Moreover, the hyperbranched PCL cross-linker also endowed the ionic hydrogel with higher sensitivity than the linear one when used as a strain sensor. As a result, this well-designed ionic hydrogel possesses high mechanical strength, superior toughness, and well ionic conductivity, exhibiting potential applications in the field of flexible strain sensors.
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Affiliation(s)
- Yu Jiang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Dezhi Zhan
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Meng Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Ying Zhu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Huiqing Zhong
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Yangfei Wu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Qinwen Tan
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Xinhua Dong
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Daohong Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Nikos Hadjichristidis
- Polymer Synthesis Laboratory, Chemical Science Program, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Kingdom of Saudi Arabia
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3
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Pang C, Wang H, Zhang F, Patel AK, Lee HP, Wooley KL. Glucose‐derived superabsorbent hydrogel materials based on mechanically‐interlocked slide‐ring and triblock copolymer topologies. JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1002/pol.20220639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ching Pang
- Departments of Chemistry, Materials Science & Engineering, and Chemical Engineering, and Laboratory for Synthetic‐Biologic Interactions Texas A&M University College Station Texas USA
| | - Hai Wang
- Departments of Chemistry, Materials Science & Engineering, and Chemical Engineering, and Laboratory for Synthetic‐Biologic Interactions Texas A&M University College Station Texas USA
| | - Fuwu Zhang
- Department of Chemistry University of Miami Coral Gables Florida USA
| | - Ami K. Patel
- Departments of Chemistry, Materials Science & Engineering, and Chemical Engineering, and Laboratory for Synthetic‐Biologic Interactions Texas A&M University College Station Texas USA
| | - Hung Pang Lee
- Department of Biomedical Engineering Texas A&M University College Station Texas USA
| | - Karen L. Wooley
- Departments of Chemistry, Materials Science & Engineering, and Chemical Engineering, and Laboratory for Synthetic‐Biologic Interactions Texas A&M University College Station Texas USA
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4
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Liu J, Zhang L, Zhao D, Yue S, Sun H, Ni C, Zhong Z. Polymersome-stabilized doxorubicin-lipiodol emulsions for high-efficacy chemoembolization therapy. J Control Release 2022; 350:122-131. [PMID: 35973474 DOI: 10.1016/j.jconrel.2022.08.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/03/2022] [Accepted: 08/10/2022] [Indexed: 02/08/2023]
Abstract
Transarterial chemoembolization (TACE) with free doxorubicin-lipiodol emulsions (free DOX/L) is a favored clinical treatment for advanced hepatocellular carcinoma (HCC) patients ineligible for radical therapies; however, its inferior colloidal stability not only greatly reduces its tumor retention but also hastens drug release into blood circulation, leading to suboptimal clinical outcomes. Here, we find that disulfide-crosslinked polymersomes carrying doxorubicin (Ps-DOX) form super-stable and homogenous water-in-oil microemulsions with lipiodol (Ps-DOX/L). Ps-DOX/L microemulsions had tunable sizes ranging from 14 to 44 μm depending on the amount of Ps-DOX, were stable over 2 months storage as well as centrifugation, and exhibited nearly zero-order DOX release within 15 days. Of note, Ps-DOX induced 2.3-13.4 fold better inhibitory activity in all tested rat, murine and human liver tumor cells than free DOX likely due to its efficient redox-triggered intracellular drug release. Interestingly, transarterial administration of Ps-DOX/L microemulsions in orthotopic rat N1S1 syngeneic HCC model showed minimal systemic DOX exposure, high and long hepatic DOX retention, complete tumor elimination, effective inhibition of angiogenesis, and depleted adverse effects, significantly outperforming clinically used free DOX/L emulsions. This smart polymersome stabilization of doxorubicin-lipiodol microemulsions provides a novel TACE strategy for advanced tumors.
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Affiliation(s)
- Jingyi Liu
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, PR China
| | - Lei Zhang
- Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou 215123, PR China
| | - Dongxu Zhao
- Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou 215123, PR China
| | - Shujing Yue
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, PR China
| | - Huanli Sun
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, PR China.
| | - Caifang Ni
- Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou 215123, PR China.
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, PR China; College of Pharmaceutical Sciences, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, PR China.
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5
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Sun W, Lu K, Wang L, Hao Q, Liu J, Wang Y, Wu Z, Chen H. Introducing SuFEx click chemistry into aliphatic polycarbonates: a novel toolbox/platform for post-modification as biomaterials. J Mater Chem B 2022; 10:5203-5210. [PMID: 35734968 DOI: 10.1039/d2tb01052f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As a biodegradable and biocompatible biomaterial, aliphatic polycarbonates (APCs) have attracted substantial attention in terms of post-polymerization modification (PPM) for functionalization. A strategy for the introduction of sulfur(VI)-fluoride exchange (SuFEx) click chemistry into APCs for PPM is proposed for the first time in this work. 4'-(Fluorosulfonyl)benzyl 5-methyl-2-oxo-1,3-dioxane-5-carboxylate (FMC) was designed as a SuFEx clickable cyclic carbonate for APCs via ring-opening polymerization (ROP), and an operational and nontoxic synthetic route was achieved. FMC managed to undergo both ROP and PPM through the SuFEx click chemistry organocatalytically without constraining or antagonizing each other, using 1,5,7-triazabicyclo[4,4,0]dec-5-ene (TBD) as a co-organocatalyst here. Its ROP was systematically investigated, and density functional theory (DFT) calculations were performed to understand the acid-base catalytic mechanism in the anionic ROP. Exploratory investigations into PPM by SuFEx of poly(FMC) were conducted as biomaterials, and the one-pot strategies to achieve both ROP and SuFEx were confirmed.
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Affiliation(s)
- Wei Sun
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Kunyan Lu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Ling Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Qing Hao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Jingrui Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Yong Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Zhaoqiang Wu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
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6
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Shen Y, Yang X, Song Y, Tran DK, Wang H, Wilson J, Dong M, Vazquez M, Sun G, Wooley KL. Complexities of Regioselective Ring-Opening vs Transcarbonylation-Driven Structural Metamorphosis during Organocatalytic Polymerizations of Five-Membered Cyclic Carbonate Glucose Monomers. JACS AU 2022; 2:515-521. [PMID: 35253000 PMCID: PMC8889557 DOI: 10.1021/jacsau.1c00545] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Rigorous investigations of the organobase-catalyzed ring-opening polymerizations (ROPs) of a series of five-membered cyclic carbonate monomers derived from glucose revealed that competing transcarbonylation reactions scrambled the regiochemistries of the polycarbonate backbones. Regioirregular poly(2,3-α-d-glucose carbonate) backbone connectivities were afforded by 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD)-catalyzed ROPs of three monomers having different cyclic acetal protecting groups through the 4- and 6-positions. Small molecule studies conducted upon isolated unimers and dimers indicated a preference for Cx-O2 vs Cx-O3 bond cleavage from tetrahedral intermediates along the pathways of addition-elimination mechanisms when the reactions were performed at room temperature. Furthermore, treatment of isolated 3-unimer or 2-unimer, having the carbonate linkage in the 3- or 2-position as obtained from either Cx-O2 or Cx-O3 bond cleavage, respectively, gave the same 74:26 (3-unimer:2-unimer) ratio, confirming the occurrence of transcarbonylation reactions with a preference for 3-unimer vs. 2-unimer formation in the presence of organobase catalyst at room temperature. In contrast, unimer preparation at -78 °C favored Cx-O3 bond cleavage to afford a majority of 2-unimer, presumably due to a lack of transcarbonylation side reactions. Computational studies supported the experimental findings, enhancing fundamental understanding of the regiochemistry resulting from the ring-opening and subsequent transcarbonylation reactions during ROP of glucose carbonates. These findings are expected to guide the development of advanced carbohydrate-derived polymer materials by an initial monomer design via side chain acetal protecting groups, with the ability to evolve the properties further through later-stage structural metamorphosis.
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Affiliation(s)
- Yidan Shen
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Xin Yang
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
- High
Performance
Research Computing − Laboratory for Molecular Simulation, Texas A&M University, College Station, Texas 77842, United States
| | - Yue Song
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - David K. Tran
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Hai Wang
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Jaye Wilson
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Mei Dong
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Mariela Vazquez
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Guorong Sun
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Karen L. Wooley
- Department
of Materials Science & Engineering, Department of Chemistry, and Department of
Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
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7
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Yue S, Zhang Y, Wei Y, Haag R, Sun H, Zhong Z. Cetuximab-Polymersome-Mertansine Nanodrug for Potent and Targeted Therapy of EGFR-Positive Cancers. Biomacromolecules 2021; 23:100-111. [PMID: 34913340 DOI: 10.1021/acs.biomac.1c01065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Targeted nanomedicines particularly armed with monoclonal antibodies are considered to be the most promising advanced chemotherapy for malignant cancers; however, their development is hindered by their instability and drug leakage problems. Herein, we constructed a robust cetuximab-polymersome-mertansine nanodrug (C-P-DM1) for highly potent and targeted therapy of epidermal growth factor receptor (EGFR)-positive solid tumors. C-P-DM1 with a tailored cetuximab surface density of 2 per P-DM1 exhibited a size of ca. 60 nm, high stability with minimum DM1 leakage, glutathione-triggered release of native DM1, and 6.0-11.3-fold stronger cytotoxicity in EGFR-positive human breast (MDA-MB-231), lung (A549), and liver (SMMC-7721) cancer cells (IC50 = 27.1-135.5 nM) than P-DM1 control. Notably, intravenous injection of C-P-DM1 effectively repressed subcutaneous MDA-MB-231 breast cancer and orthotopic A549-Luc lung carcinoma in mice without inducing toxic effects. Strikingly, intratumoral injection of C-P-DM1 completely cured 60% of mice bearing breast tumor without recurrence. This robust cetuximab-polymersome-mertansine nanodrug provides a promising new strategy for targeted treatment of EGFR-positive solid malignancies.
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Affiliation(s)
- Shujing Yue
- Biomedical Polymers Laboratory, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Yifan Zhang
- Biomedical Polymers Laboratory, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Yaohua Wei
- Biomedical Polymers Laboratory, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Rainer Haag
- Department of Biology, Chemistry and Pharmacy, Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Huanli Sun
- Biomedical Polymers Laboratory, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
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8
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An intelligent cell-selective polymersome-DM1 nanotoxin toward triple negative breast cancer. J Control Release 2021; 340:331-341. [PMID: 34774889 DOI: 10.1016/j.jconrel.2021.11.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 11/02/2021] [Accepted: 11/09/2021] [Indexed: 12/22/2022]
Abstract
Antibody-drug conjugates (ADCs) are among the most significant advances in clinical cancer treatments, however, they are haunted with fundamental issues like low drug/antibody ratio (DAR), need of large amount of antibody, and complex chemistry. Targeted nanomedicines while offering a promising alternative to ADCs are afflicted with drug leakage and inferior cancer-specificity. Herein, we developed an intelligent cell-selective nanotoxin based on anti-CD44 antibody-polymersome-DM1 conjugates (aCD44-AP-DM1) for potent treatment of solid tumors. DM1 was simultaneously coupled to vesicular membrane via disulfide bonds during self-assembly and anti-CD44 antibody was facilely clicked onto polymersome surface, tailor-making an optimal aCD44-AP-DM1 with a controlled antibody density of 5.0, extraordinary DAR of 275, zero drug leakage and rapid reduction-responsive DM1 release. aCD44-AP-DM1 displayed a high specificity and exceptional cytotoxicity toward MDA-MB-231 triple negative breast cancer, SMMC-7721 hepatocellular carcinoma and A549 non-small cell lung cancer cells with half-maximal inhibitory concentrations (IC50) of 21.4, 3.7 and 64.6 ng/mL, respectively, 3.6-47.2-fold exceeding non-targeted P-DM1. Intriguingly, the systemic administration of aCD44-AP-DM1 significantly suppressed subcutaneous MDA-MB-231 tumor xenografts in nude mice while intratumoral injection achieved complete tumor eradication in four out of five mice, without causing toxicity. This intelligent cell-selective nanotoxin has emerged as a better platform over ADCs for targeted cancer therapy.
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9
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Wei J, Xia Y, Meng F, Ni D, Qiu X, Zhong Z. Small, Smart, and LDLR-Specific Micelles Augment Sorafenib Therapy of Glioblastoma. Biomacromolecules 2021; 22:4814-4822. [PMID: 34677048 DOI: 10.1021/acs.biomac.1c01103] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Targeted molecular therapy, for example, with sorafenib (SF) is considered as a new and potent strategy for glioblastoma (GBM) that remains hard to treat today. Several clinical trials with SF, as monotherapy or combination therapy with current treatments, have not met the clinical endpoints, likely as a result of the blood-brain barrier (BBB) and inferior GBM delivery. Here, we designed and explored small, smart, and LDLR-specific micelles to load SF (LDLR-mSF) and to improve SF therapy of GBM by enhancing BBB penetration, GBM accumulation, and cell uptake. LDLR-mSF with 2.5% ApoE peptide functionality based on poly(ethylene glycol)-poly(ε-caprolactone-co-dithiolane trimethylene carbonate)-mefenamate exhibited nearly quantitative SF loading, small size (24 nm), high colloidal stability, and glutathione-activated SF release. The in vitro and in vivo studies certified that LDLR-mSF greatly enhanced BBB permeability and U-87 MG cell uptake and caused 10.6- and 12.9-fold stronger anti-GBM activity and 6.0- and 2.5-fold higher GBM accumulation compared with free SF and non-LDLR mSF controls, respectively. The treatment of an orthotopic human GBM tumor model revealed that LDLR-mSF at a safe dosage of 15 mg of SF/kg significantly retarded tumor progression and improved the survival rate by inducing tumor cell apoptosis and inhibiting tumor angiogenesis. These small, smart, and LDLR-specific micelles provide a potential solution to enhance targeted molecular therapy of GBM.
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Affiliation(s)
- Jingjing Wei
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Yifeng Xia
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Fenghua Meng
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Dawei Ni
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Xinyun Qiu
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
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10
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Azemar F, Gimello O, Pinaud J, Robin JJ, Monge S. Insight into the Alcohol-Free Ring-Opening Polymerization of TMC Catalyzed by TBD. Polymers (Basel) 2021; 13:1589. [PMID: 34069275 PMCID: PMC8156564 DOI: 10.3390/polym13101589] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/28/2021] [Accepted: 05/10/2021] [Indexed: 12/03/2022] Open
Abstract
We report herein a study on the alcohol-free, ring-opening polymerization of trimethylene carbonate (TMC) in THF, catalyzed by 1,5,7-triazabicyclo [4.4.0] ec-5-ene (TBD) with ratios nTBD/nTMC ranging between 1/20 and 1/400. In all cases, the reaction proceeds very rapidly, even faster than in the presence of alcohol initiators, and provides PTMC with molecular weights up to Mn = 34,000 g mol-1. Characterization of the obtained PTMC samples by MALDI-TOF mass spectrometry, triple detection size exclusion chromatography and 1H NMR spectroscopy reveals the presence of both linear and cyclic polymer chains.
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Affiliation(s)
| | | | | | - Jean-Jacques Robin
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (F.A.); (O.G.); (J.P.); (S.M.)
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11
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Liang ZC, Yang C, Ding X, Hedrick JL, Wang W, Yang YY. Carboxylic acid-functionalized polycarbonates as bone cement additives for enhanced and sustained release of antibiotics. J Control Release 2021; 329:871-881. [DOI: 10.1016/j.jconrel.2020.10.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 10/01/2020] [Accepted: 10/09/2020] [Indexed: 01/22/2023]
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12
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Zhang J, Wang X, Cheng L, Yuan J, Zhong Z. SP94 peptide mediating highly specific and efficacious delivery of polymersomal doxorubicin hydrochloride to hepatocellular carcinoma in vivo. Colloids Surf B Biointerfaces 2020; 197:111399. [PMID: 33075660 DOI: 10.1016/j.colsurfb.2020.111399] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/07/2020] [Accepted: 09/27/2020] [Indexed: 12/28/2022]
Abstract
The effective treatment of hepatocellular carcinoma (HCC) requires development of novel drug formulations that selectively kill HCC cells while sparing healthy liver cells. Here, we designed and investigated HCC-specific peptide, SP94 (SFSIIHTPILPLGGC), decorated smart polymersomal doxorubicin hydrochloride (SP94-PS-DOX) for potent treatment of orthotopic human SMMC-7721 HCC xenografts. SP94-PS-DOX was fabricated by post ligand-modification, affording robust nano-formulations with a diameter of ∼ 76 nm and DOX content of 9.9 wt.%. The internalization of SP94-PS-DOX by SMMC-7721 cells showed a clear dependence on SP94 surface densities, in which 30 % SP94 resulted in ca. 3-fold better cellular uptake over non-targeted control (PS-DOX). In accordance, SP94-PS-DOX exhibited superior inhibition of SMMC-7721 cells to PS-DOX and clinical liposome injections (Lipo-DOX). Notably, a remarkable tumor deposition of 14.9 %ID/g and tumor-to-normal liver ratio of ca. 6.9 was observed for SP94-PS-DOX in subcutaneous SMMC-7721 HCC xenografts. More interestingly, SP94-PS-DOX under 10 mg DOX/kg induced far better therapeutic efficacy toward orthotopic SMMC-7721 HCC models than PS-DOX and Lipo-DOX controls giving substantial survival benefits and little adverse effects. The remarkable specificity and therapeutic outcomes lend SP94-PS-DOX promising for targeted HCC therapy.
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Affiliation(s)
- Jian Zhang
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, PR China; Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, PR China
| | - Xiuxiu Wang
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, PR China
| | - Liang Cheng
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, PR China; Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, PR China.
| | - Jiandong Yuan
- BrightGene Bio-Medical Technology Co., Ltd., Suzhou, 215123, PR China
| | - Zhiyuan Zhong
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, PR China; Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, PR China.
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13
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Brissenden AJ, Amsden BG. Insights into the polymerization kinetics of thermoresponsive polytrimethylene carbonate bearing a methoxyethoxy side group. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Brian G. Amsden
- Department of Chemical Engineering Queen's University Kingston Ontario Canada
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14
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Ding X, Yang C, Moreira W, Yuan P, Periaswamy B, de Sessions PF, Zhao H, Tan J, Lee A, Ong KX, Park N, Liang ZC, Hedrick JL, Yang YY. A Macromolecule Reversing Antibiotic Resistance Phenotype and Repurposing Drugs as Potent Antibiotics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001374. [PMID: 32995131 PMCID: PMC7503100 DOI: 10.1002/advs.202001374] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/13/2020] [Indexed: 05/22/2023]
Abstract
In order to mitigate antibiotic resistance, a new strategy to increase antibiotic potency and reverse drug resistance is needed. Herein, the translocation mechanism of an antimicrobial guanidinium-functionalized polycarbonate is leveraged in combination with traditional antibiotics to afford a potent treatment for drug-resistant bacteria. Particularly, this polymer-antibiotic combination approach reverses rifampicin resistance phenotype in Acinetobacter baumannii demonstrating a 2.5 × 105-fold reduction in minimum inhibitory concentration (MIC) and a 4096-fold reduction in minimum bactericidal concentration (MBC). This approach also enables the repurposing of auranofin as an antibiotic against multidrug-resistant (MDR) Gram-negative bacteria with a 512-fold MIC and 128-fold MBC reduction, respectively. Finally, the in vivo efficacy of polymer-rifampicin combination is demonstrated in a MDR bacteremia mouse model. This combination approach lays foundational ground rules for a new class of antibiotic adjuvants capable of reversing drug resistance phenotype and repurposing drugs against MDR Gram-negative bacteria.
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Affiliation(s)
- Xin Ding
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityShenzhen518107China
- Institute of Bioengineering and Nanotechnology31 Biopolis Way, The NanosSingapore138669Singapore
| | - Chuan Yang
- Institute of Bioengineering and Nanotechnology31 Biopolis Way, The NanosSingapore138669Singapore
| | - Wilfried Moreira
- Singapore‐MIT Alliance for Research and Technology (SMART)1 CREATE WaySingapore138602Singapore
| | - Peiyan Yuan
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityShenzhen518107China
| | - Balamurugan Periaswamy
- Institute of Bioengineering and Nanotechnology31 Biopolis Way, The NanosSingapore138669Singapore
| | | | - Huimin Zhao
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityShenzhen518107China
| | - Jeremy Tan
- Institute of Bioengineering and Nanotechnology31 Biopolis Way, The NanosSingapore138669Singapore
| | - Ashlynn Lee
- Institute of Bioengineering and Nanotechnology31 Biopolis Way, The NanosSingapore138669Singapore
| | - Kai Xun Ong
- Singapore‐MIT Alliance for Research and Technology (SMART)1 CREATE WaySingapore138602Singapore
| | - Nathaniel Park
- IBM Almaden Research Center650 Harry RoadSan JoseCA95120USA
| | - Zhen Chang Liang
- Institute of Bioengineering and Nanotechnology31 Biopolis Way, The NanosSingapore138669Singapore
| | | | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology31 Biopolis Way, The NanosSingapore138669Singapore
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15
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Liu Y, van Steenbergen MJ, Zhong Z, Oliveira S, Hennink WE, van Nostrum CF. Dithiolane-Crosslinked Poly(ε-caprolactone)-Based Micelles: Impact of Monomer Sequence, Nature of Monomer, and Reducing Agent on the Dynamic Crosslinking Properties. Macromolecules 2020; 53:7009-7024. [PMID: 32884159 PMCID: PMC7458473 DOI: 10.1021/acs.macromol.0c01031] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/15/2020] [Indexed: 12/19/2022]
Abstract
Dithiolanes are used to obtain dynamic and reversible crosslinks between polymer chains. Copolymers of two different dithiolane-containing cyclic carbonate monomers and ε-caprolactone (CL) were synthesized by ring-opening polymerization using a methoxy-poly(ethylene glycol) (mPEG) initiator and different catalysts (diphenyl phosphate (DPP), methanesulfonic acid (MSA), 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD), or Sn(Oct)2). Each catalyst required a different temperature, which had a pronounced influence on the reactivity ratio of the monomers and occurrence of transesterification reactions and, therefore, the monomer sequence. Self-crosslinkable copolymers were obtained when the dithiolane units were connected closely to the polymer backbone, whereas the presence of a linker unit between the dithiolane and the backbone prevented self-crosslinking. The former amphiphilic PEGylated block copolymers formed micelles by nanoprecipitation in the aqueous environment and crosslinked spontaneously by disulfide exchange during subsequent dialysis. These dithiolane-crosslinked micelles showed reduction-responsive dissociation in the presence of 10 mM glutathione, making them promising drug delivery systems for the intracellularly triggered cargo release.
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Affiliation(s)
- Yanna Liu
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
| | - Mies J. van Steenbergen
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
| | - Zhiyuan Zhong
- Biomedical
Polymers Laboratory, College of Chemistry, Chemical Engineering and
Materials Science, and State Key Laboratory of Radiation Medicine
and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Sabrina Oliveira
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
- Division of Cell Biology, Neurobiology
and Biophysics, Department of Biology, Utrecht
University, Padualaan
8, 3584 CH Utrecht, The Netherlands
| | - Wim E. Hennink
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
| | - Cornelus F. van Nostrum
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
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16
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Zhao M, Wan S, Peng X, Zhang B, Pan Q, Li S, He B, Pu Y. Leveraging a polycationic polymer to direct tunable loading of an anticancer agent and photosensitizer with opposite charges for chemo-photodynamic therapy. J Mater Chem B 2020; 8:1235-1244. [PMID: 31957757 DOI: 10.1039/c9tb02400j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, we reported a primary amine containing polycationic polymer to load an oppositely charged anticancer drug (doxorubicin, DOX) and a photosensitizer (chlorin e6, Ce6) for combinational chemo-photodynamic therapy. The electrostatic interactions as well as other multiple interactions between the polymer and payloads endowed the drug-loaded nanoparticles with excellent stability. Moreover, the electrostatic attraction between the cationic polymer and anionic Ce6 dictated that Ce6 had higher loading efficiency than DOX. DOX showed pH-responsive drug release owing to the increased solubility of protonated DOX and reduced interaction with the partially protonated polymer under acidic conditions. In contrast, Ce6 showed pH-insensitive release because of the smaller change in solubility and the intense interactions between Ce6 and the polymer. Synergistic chemo/photodynamic therapy of 4T1 cancer cells was achieved by light-triggered reactive oxygen species (ROS)-mediated enhanced cellular uptake and effective endo/lysosomal escape of drug-loaded nanoparticles. Our study demonstrated that the polycationic polymer could act as a robust carrier for differential loading and release of oppositely charged cargos for combinational therapy.
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Affiliation(s)
- Mingying Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Shiyu Wan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Xinyu Peng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Boya Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Qingqing Pan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Sai Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Yuji Pu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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17
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Li M, Wang S, Li F, Zhou L, Lei L. Iodine-mediated photo-controlled atom transfer radical polymerization (photo-ATRP) and block polymerization combined with ring-opening polymerization (ROP) via a superbase. Polym Chem 2020. [DOI: 10.1039/d0py01031f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Most organocatalysts for photo-controlled atom transfer radical polymerization (photo-ATRP) are metal complexes or synthetically elaborate organic dyes, which are toxic and expensive.
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Affiliation(s)
- Mengmeng Li
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Sixuan Wang
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Feifei Li
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Lin Zhou
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Lin Lei
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
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18
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Pyridyl-urea catalysts for the solvent-free ring-opening polymerization of lactones and trimethylene carbonate. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109293] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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19
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Affiliation(s)
- Dylan J. Walsh
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Michael G. Hyatt
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Susannah A. Miller
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Damien Guironnet
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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20
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Xu J, Chen Y, Xiao W, Zhang J, Bu M, Zhang X, Lei C. Studying the Ring-Opening Polymerization of 1,5-Dioxepan-2-one with Organocatalysts. Polymers (Basel) 2019; 11:E1642. [PMID: 31658721 PMCID: PMC6835244 DOI: 10.3390/polym11101642] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/06/2019] [Accepted: 10/08/2019] [Indexed: 11/21/2022] Open
Abstract
Three different organocatalysts, namely, 1-tert-butyl-4,4,4-tris(dimethylamino)-2,2-bis[tris (dimethylamino) phosphoranylidenamino]-2Λ5,4Λ5-catenadi(phosphazene) (t-BuP4), 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), have been used as 1,5-dioxepan-2-one (DXO) ring-opening polymerization (ROP) catalysts at varied reaction conditions. 1H NMR spectra, size exclusion chromatography (SEC) characterizations, and kinetic studies prove that the (co)polymerizations are proceeded in a controlled manner with the three organocatalysts. It is deduced that t-BuP4 and DBU catalysts are in an initiator/chain end activated ROP mechanism and TBD is in a nucleophilic ROP mechanism.
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Affiliation(s)
- Jinbao Xu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
| | - Yang Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
| | - Wenhao Xiao
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jie Zhang
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
| | - Minglu Bu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
| | - Xiaoqing Zhang
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
| | - Caihong Lei
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
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21
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Tan JPK, Voo ZX, Lim S, Venkataraman S, Ng KM, Gao S, Hedrick JL, Yang YY. Effective encapsulation of apomorphine into biodegradable polymeric nanoparticles through a reversible chemical bond for delivery across the blood-brain barrier. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 17:236-245. [PMID: 30738234 DOI: 10.1016/j.nano.2019.01.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 12/24/2022]
Abstract
Apomorphine (AMP, used for treatment of Parkinson's disease) is susceptible to oxidation. Its oxidized products are toxic. To overcome these issues, AMP was conjugated to phenylboronic acid-functionalized polycarbonate through pH-sensitive covalent boronate ester bond between phenylboronic acid and catechol in AMP. Various conditions (use of base as catalyst, reaction time and initial drug loading) were optimized to achieve high AMP conjugation degree and mitigate polymer degradation caused by amine in AMP. Pyridine accelerated AMP conjugation and yielded ~74% conjugation within 5 min. Tertiary amine groups were incorporated to polycarbonate, and served as efficient catalyst (~80% conjugation within 5 min). AMP-conjugated polymer self-assembled into nanoparticles. AMP release from the nanoparticles was minimal at pH 7.4, while in acidic environment (endolysosomes) rapid release was observed. Encapsulation protected AMP from oxidization. The nanoparticles were significantly accumulated in the brain tissue after intranasal delivery. These AMP-loaded nanoparticles have potential use for treatment of Parkinson's disease.
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Affiliation(s)
- Jeremy Pang Kern Tan
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Zhi Xiang Voo
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore; IBM Almaden Research Center, San Jose, California, United States
| | - Shaun Lim
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Shrinivas Venkataraman
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Kai Ming Ng
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Shujun Gao
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - James L Hedrick
- IBM Almaden Research Center, San Jose, California, United States
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore.
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22
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Binaphthol-derived phosphoric acids as efficient organocatalysts for the controlled ring-opening polymerization of γ-benzyl- -glutamate N-carboxyanhydrides. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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23
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24
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Breising VM, Gieshoff T, Kehl A, Kilian V, Schollmeyer D, Waldvogel SR. Electrochemical Formation of 3,5-Diimido-1,2-dithiolanes by Dehydrogenative Coupling. Org Lett 2018; 20:6785-6788. [DOI: 10.1021/acs.orglett.8b02904] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valentina M. Breising
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Tile Gieshoff
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
- Graduate School Materials Science in Mainz, 55128 Mainz, Germany
| | - Anton Kehl
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Vincent Kilian
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Dieter Schollmeyer
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Siegfried R. Waldvogel
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
- Graduate School Materials Science in Mainz, 55128 Mainz, Germany
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25
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Yao P, Zhang Y, Meng H, Sun H, Zhong Z. Smart Polymersomes Dually Functionalized with cRGD and Fusogenic GALA Peptides Enable Specific and High-Efficiency Cytosolic Delivery of Apoptotic Proteins. Biomacromolecules 2018; 20:184-191. [DOI: 10.1021/acs.biomac.8b01243] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Peili Yao
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yifan Zhang
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Hao Meng
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Huanli Sun
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
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26
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Affiliation(s)
- Huanli Sun
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou , 215123 , P. R. China
| | - Harm-Anton Klok
- Laboratoire des Polymères, Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques , École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD , Station 12 , CH-1015 Lausanne , Switzerland
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou , 215123 , P. R. China
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