1
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Thoma JL, Little H, Duhamel J. Location of a Hydrophobic Load in Poly(oligo(ethylene glycol) methyl ether methacrylate)s (PEGMAs) Dissolved in Water and Probed by Fluorescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5900-5912. [PMID: 38442036 DOI: 10.1021/acs.langmuir.3c03802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Two series of pyrene-labeled poly(oligo(ethylene glycol) methyl ether methacrylate)s referred to as PyEG5-PEGnMA and PyC4-PEGnMA were prepared to probe the region surrounding the polymethacrylate backbone by using the fluorescence of the dye pyrene. PyEG5-PEGnMA and PyC4-PEGnMA were prepared by copolymerizing the EGnMA methacrylate monomers with penta(ethylene glycol) 1-pyrenemethyl ether methacrylate or 1-pyrenebutyl methacrylate, respectively. In organic solvents, the much longer 18 non-hydrogen atom linker connecting the pyrene moieties to the polymethacrylate backbone in the PyEG5-PEGnMA samples enabled the deployment of the pyrenyl labels into the solution. In water, however, an excited pyrene for PyEG5-PEGnMA was found to probe a same volume as for the PyC4-PEGnMA samples where a much shorter 6 non-hydrogen atom spacer connected pyrene to the backbone. Another surprising observation, considering that the hydrophobicity of pyrene induces strong pyrene aggregation for many pyrene-labeled water-soluble polymers (Py-WSPs) in water, was the little pyrene aggregation found for the PyEG5-PEGnMA and PyC4-PEGnMA samples in water. These effects could be related to the organic-like domain (OLD) generated by the oligo(ethylene glycol) side chains densely arranged around the polymethacrylate backbone of the polymeric bottlebrush (PBB). Additional fluorescence experiments conducted with the penta(ethylene glycol) 1-pyrenemethyl ether derivative indicated that the cylindrical OLD surrounding the polymethacrylate backbone had a chemical composition similar to that of ethylene glycol. Binding of hydrophobic pyrene molecules to unlabeled PEGnMA bottlebrushes in water further supported the existence of the OLD. The demonstration, that PEGnMA samples form an OLD in water, which can host and protect hydrophobic cargoes like pyrene, should lead to the development of improved PEGnMA-based drug delivery systems.
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Affiliation(s)
- Janine L Thoma
- Department of Chemistry, Institute for Polymer Research, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Hunter Little
- Department of Chemistry, Institute for Polymer Research, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Jean Duhamel
- Department of Chemistry, Institute for Polymer Research, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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2
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Chen W, Xie W, Zhao G, Shuai Q. Efficient pH-Responsive Nano-Drug Delivery System Based on Dynamic Boronic Acid/Ester Transformation. Molecules 2023; 28:molecules28114461. [PMID: 37298937 DOI: 10.3390/molecules28114461] [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: 04/07/2023] [Revised: 05/19/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Chemotherapy is currently one of the most widely used treatments for cancer. However, traditional chemotherapy drugs normally have poor tumor selectivity, leading to insufficient accumulation at the tumor site and high systemic cytotoxicity. To address this issue, we designed and prepared a boronic acid/ester-based pH-responsive nano-drug delivery system that targets the acidic microenvironment of tumors. We synthesized hydrophobic polyesters with multiple pendent phenylboronic acid groups (PBA-PAL) and hydrophilic PEGs terminated with dopamine (mPEG-DA). These two types of polymers formed amphiphilic structures through phenylboronic ester linkages, which self-assembled to form stable PTX-loaded nanoparticles (PTX/PBA NPs) using the nanoprecipitation method. The resulting PTX/PBA NPs demonstrated excellent drug encapsulation efficiency and pH-triggered drug-release capacity. In vitro and in vivo evaluations of the anticancer activity of PTX/PBA NPs showed that they improved the pharmacokinetics of drugs and exhibited high anticancer activity while with low systemic toxicity. This novel phenylboronic acid/ester-based pH-responsive nano-drug delivery system can enhance the therapeutic effect of anticancer drugs and may have high potential for clinical transformations.
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Affiliation(s)
- Weijun Chen
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Wanxuan Xie
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Guangkuo Zhao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Qi Shuai
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
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3
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Arno MC, Simpson JD, Blackman LD, Brannigan RP, Thurecht KJ, Dove AP. Enhanced drug delivery to cancer cells through a pH-sensitive polycarbonate platform. Biomater Sci 2023; 11:908-915. [PMID: 36533676 PMCID: PMC9890502 DOI: 10.1039/d2bm01626e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Polymer-drug conjugates are widely investigated to enhance the selectivity of therapeutic drugs to cancer cells, as well as increase circulation lifetime and solubility of poorly soluble drugs. In order to direct these structures selectively to cancer cells, targeting agents are often conjugated to the nanoparticle surface as a strategy to limit drug accumulation in non-cancerous cells and therefore reduce systemic toxicity. Here, we report a simple procedure to generate biodegradable polycarbonate graft copolymer nanoparticles that allows for highly efficient conjugation and intracellular release of S-(+)-camptothecin, a topoisomerase I inhibitor widely used in cancer therapy. The drug-polymer conjugate showed strong efficacy in inhibiting cell proliferation across a range of cancer cell lines over non-cancerous phenotypes, as a consequence of the increased intracellular accumulation and subsequent drug release specifically in cancer cells. The enhanced drug delivery towards cancer cells in vitro demonstrates the potential of this platform for selective treatments without the addition of targeting ligands.
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Affiliation(s)
- Maria C Arno
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Joshua D Simpson
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Queensland 4072, Australia
- Centre for Advanced Imaging, The University of Queensland, St. Lucia, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Lewis D Blackman
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, UK
| | - Ruairí P Brannigan
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, UK
| | - Kristofer J Thurecht
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Queensland 4072, Australia
- Centre for Advanced Imaging, The University of Queensland, St. Lucia, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Andrew P Dove
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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4
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Mohamed MA, Yan L, Shahini A, Rajabian N, Jafari A, Andreadis ST, Wu Y, Cheng C. Well-Defined pH-Responsive Self-Assembled Block Copolymers for the Effective Codelivery of Doxorubicin and Antisense Oligonucleotide to Breast Cancer Cells. ACS APPLIED BIO MATERIALS 2022; 5:4779-4792. [PMID: 36170623 DOI: 10.1021/acsabm.2c00464] [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: 01/25/2023]
Abstract
The worldwide steady increase in the number of cancer patients motivates the development of innovative drug delivery systems for combination therapy as an effective clinical modality for cancer treatment. Here, we explored a design concept based on poly(ethylene glycol)-b-poly(2-(dimethylamino)ethyl methacrylate)-b-poly(2-hydroxyethyl methacrylate-formylbenzoic acid) [PEG-b-PDMAEMA-b-P(HEMA-FBA)] for the dual delivery of doxorubicin (DOX) and GTI2040 (an antisense oligonucleotide for ribonucleotide reductase inhibition) to MCF-7 breast cancer cells. PEG-b-PDMAEMA-b-PHEMA, the precursor copolymer, was prepared through chain extensions from a PEG-based macroinitiator via two consecutive atom transfer radical polymerization (ATRP) steps. Then, it was modified at the PHEMA block with 4-formylbenzoic acid (FBA) to install reactive aldehyde moieties. A pH-responsive polymer-drug conjugate (PDC) was obtained by conjugating DOX to the polymer structure via acid-labile imine linkages, and subsequently self-assembled in an aqueous solution to form DOX-loaded self-assembled nanoparticles (DOX-SAN) with a positively charged shell. DOX-SAN condensed readily with negatively charged GTI2040 to form GTI2040/DOX-SAN nanocomplexes. Gel-retardation assay confirmed the affinity between GTI2040 and DOX-SAN. The GTI2040/DOX-SAN nanocomplex at N/P ratio of 30 exhibited a volume-average hydrodynamic size of 136.4 nm and a zeta potential of 21.0 mV. The pH-sensitivity of DOX-SAN was confirmed by the DOX release study based on the significant cumulative DOX release at pH 5.5 relative to pH 7.4. Cellular uptake study demonstrated favorable accumulation of GTI2040/DOX-SAN inside MCF-7 cells compared with free GTI2040/DOX. In vitro cytotoxicity study indicated higher therapeutic efficacy of GTI2040/DOX-SAN relative to DOX-SAN alone because of the downregulation of the R2 protein of ribonucleotide reductase. These outcomes suggest that the self-assembled pH-responsive triblock copolymer is a promising platform for combination therapy, which may be more effective in combating cancer than individual therapies.
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Affiliation(s)
- Mohamed Alaa Mohamed
- Department of Chemical and Biological Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States.,Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Lingyue Yan
- Department of Biomedical Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States
| | - Aref Shahini
- Department of Chemical and Biological Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States
| | - Nika Rajabian
- Department of Chemical and Biological Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States
| | - Amin Jafari
- Department of Chemical and Biological Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States
| | - Stelios T Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States.,Department of Biomedical Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States.,Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York 14263, United States.,Cell, Gene and Tissue Engineering (CGTE) Center, Buffalo, New York 14263, United States
| | - Yun Wu
- Department of Biomedical Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States.,Cell, Gene and Tissue Engineering (CGTE) Center, Buffalo, New York 14263, United States
| | - Chong Cheng
- Department of Chemical and Biological Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260, United States
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5
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Lian Z, Qi S. Size Effect of the End-Attached Particle on the Adsorption-Responsive Polymer Switches. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zengju Lian
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
| | - Shuanhu Qi
- School of Chemistry, Beihang University, Beijing 100191, China
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6
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Javia A, Vanza J, Bardoliwala D, Ghosh S, Misra A, Patel M, Thakkar H. Polymer-drug conjugates: Design principles, emerging synthetic strategies and clinical overview. Int J Pharm 2022; 623:121863. [PMID: 35643347 DOI: 10.1016/j.ijpharm.2022.121863] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/06/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
Abstract
Adagen, an enzyme replacement treatment for adenosine deaminase deficiency, was the first protein-polymer conjugate to be approved in early 1990s. Post this regulatory approval, numerous polymeric drugs and polymeric nanoparticles have entered the market as advanced or next-generation polymer-based therapeutics, while many others have currently been tested clinically. The polymer conjugation to therapeutic moiety offers several advantages, like enhanced solubilization of drug, controlled release, reduced immunogenicity, and prolonged circulation. The present review intends to highlight considerations in the design of therapeutically effective polymer-drug conjugates (PDCs), including the choice of linker chemistry. The potential synthetic strategies to formulate PDCs have been discussed along with recent advancements in the different types of PDCs, i.e., polymer-small molecular weight drug conjugates, polymer-protein conjugates, and stimuli-responsive PDCs, which are under clinical/preclinical investigation. Current impediments and regulatory hurdles hindering the clinical translation of PDC into effective therapeutic regimens for the amelioration of disease conditions have been addressed.
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Affiliation(s)
- Ankit Javia
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India
| | - Jigar Vanza
- Department of Pharmaceutics, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Changa, Gujarat-388421, India
| | - Denish Bardoliwala
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India
| | - Saikat Ghosh
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India
| | - Ambikanandan Misra
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India; Department of Pharmaceutics, School of Pharmacy and Technology Management, SVKM's NMIMS, Shirpur, Maharashtra-425405, Indi
| | - Mrunali Patel
- Department of Pharmaceutics, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Changa, Gujarat-388421, India
| | - Hetal Thakkar
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India.
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7
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Kerr A, Sagita E, Mansfield EDH, Nguyen TH, Feeney OM, Pouton CW, Porter CJH, Sanchis J, Perrier S. Polymeric Nanotubes as Drug Delivery Vectors─Comparison of Covalently and Supramolecularly Assembled Constructs. Biomacromolecules 2022; 23:2315-2328. [PMID: 35582852 PMCID: PMC9198979 DOI: 10.1021/acs.biomac.2c00063] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rod-shaped nanoparticles have been identified as promising drug delivery candidates. In this report, the in vitro cell uptake and in vivo pharmacokinetic/bio-distribution behavior of molecular bottle-brush (BB) and cyclic peptide self-assembled nanotubes were studied in the size range of 36-41 nm in length. It was found that BB possessed the longest plasma circulation time (t1\2 > 35 h), with the cyclic peptide system displaying an intermediate half-life (14.6 h), although still substantially elevated over a non-assembling linear control (2.7 h). The covalently bound BB underwent substantial distribution into the liver, whereas the cyclic peptide nanotube was able to mostly circumvent organ accumulation, highlighting the advantage of the inherent degradability of the cyclic peptide systems through their reversible aggregation of hydrogen bonding core units.
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Affiliation(s)
- Andrew Kerr
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Erny Sagita
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville 3052, VIC, Australia
| | | | - Tri-Hung Nguyen
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville 3052, VIC, Australia
| | - Orlagh M Feeney
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville 3052, VIC, Australia
| | - Colin W Pouton
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville 3052, VIC, Australia
| | - Christopher J H Porter
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville 3052, VIC, Australia
| | - Joaquin Sanchis
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville 3052, VIC, Australia
| | - Sébastien Perrier
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K.,Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville 3052, VIC, Australia.,Warwick Medical School, The University of Warwick, Coventry CV4 7AL, U.K
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8
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Müllner M. Molecular polymer bottlebrushes in nanomedicine: therapeutic and diagnostic applications. Chem Commun (Camb) 2022; 58:5683-5716. [PMID: 35445672 DOI: 10.1039/d2cc01601j] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Molecular polymer bottlebrushes are densely grafted, individual macromolecules with nanoscale proportions. The last decade has seen an increased focus on this material class, especially in nanomedicine and for biomedical applications. This Feature Article provides an overview of major developments in this area to highlight the many opportunities that these polymer architectures bring to nano-bio research. The article covers aspects of bottlebrush synthesis and summarises their use in drug and gene delivery, imaging, as theranostics and as prototype materials to correlate nanoparticle structure and composition to biological function and behaviour. Areas for future research in this area are discussed.
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Affiliation(s)
- Markus Müllner
- Key Centre for Polymers and Colloids, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia. .,The University of Sydney Nano Institute (Sydney Nano), Sydney, NSW 2006, Australia
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9
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Dual stimuli-responsive dendronized prodrug derived from poly(oligo-(ethylene glycol) methacrylate)-based copolymers for enhanced anti-cancer therapeutic effect. Acta Biomater 2022; 143:320-332. [PMID: 35235863 DOI: 10.1016/j.actbio.2022.02.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/23/2022] [Accepted: 02/22/2022] [Indexed: 12/11/2022]
Abstract
In this study, we developed an enzyme- and pH-responsive dendronized poly(oligo-(ethylene glycol) methacrylate) (pOEGMA)-doxorubicin (DOX) polymeric prodrug, which combined the pOEGMA structure with a degradable peptide dendron. The introduction of the dendron in the prodrug hindered the entanglement of brush oligo-(ethylene glycol) (OEG) chains, allowed the prodrug to possess dual stimuli-responsiveness, and mediated self-assembly of the polymeric prodrug to form stable nanoparticles (NPs). Brush conformation of polyethylene glycol (PEG) side chains endowed the NPs with long-term circulation with a half-life of 16.0 h. The dual-responsive dendritic structure enhanced cellular uptake of NPs and facilitated drug release in response to overexpressed cathepsin B and an acidic pH in the tumor microenvironment, resulting in an enhanced therapeutic effect with a tumor inhibition rate of 72.9% for 4T1 tumor-bearing mice. The NPs were demonstrated to possess great hemocompatibility and biosafety. Therefore, this strategy could provide great insight for the design of poly(oligo-(ethylene glycol) methacrylate)-based copolymers as drug delivery carriers. STATEMENT OF SIGNIFICANCE: We propose a dual-stimuli-responsive dendronized strategy for improving the cancer therapeutic effect of the poly(oligo-(ethylene glycol) methacrylate) (pOEGMA)-based drug conjugates. The introduction of the functional dendron promotes self-assembly of the polymeric prodrug into nanoparticles, hindering the entanglement of brush oligo-(ethylene glycol) (OEG) chains in the conjugated drugs. The obtained poly OEGMA-GFLG-Dendron-NH-N=DOX nanoparticles maintains long circulation, while addresses the drug release issue due to the presence of high-density PEG. The drug delivery system exhibits a high therapeutic potentcy with negligible side effects.
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10
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Liu Y, Dai X, Yu B, Chen M, Zhao N, Xu FJ. pH-Responsive hyaluronic acid-cloaked polycation/gold nanohybrids for tumor-targeted synergistic photothermal/gene therapy. Biomater Sci 2022; 10:2618-2627. [PMID: 35412539 DOI: 10.1039/d2bm00296e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of photothermal therapy (PTT) and gene therapy (GT) has attracted intense interest in cancer treatment. However, the lack of long circulation and active tumor targeting reduces the therapeutic efficacy of complementary PTT/GT. In this work, hyaluronic acid (HA)-cloaked gold nanorods-PGED (prepared by ring-opening of polyglycidyl methacrylate (PGMA) with ethylenediamine (ED))/pDNA (AP/pDNA-HA) complexes were prepared to achieve long circulation and tumor targeting for photoacoustic imaging (PAI)-guided synergistic PTT/GT. Gold nanorods endow the complexes with photothermal effect and PAI function. Benefiting from the HA cloak, the AP/pDNA-HA complexes exhibit excellent stability, biocompatibility, long circulation behavior and active targeting. In addition, the pH-responsive characteristic of the Schiff base bonds helps the AP/pDNA-HA complexes to effectively escape from the endosome/lysosome. The antioncogene p53 was employed to investigate the gene transfection efficiency of the delivery system both in vitro and in vivo. The superiority of synergistic PTT/GT is established in a mouse 4T1 breast tumor model. The current study provides a facile strategy for constructing multifunctional gene delivery systems with long circulation and tumor targeting features, which can achieve effective imaging-guided synergistic tumor treatment.
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Affiliation(s)
- Yanjun Liu
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Beijing Laboratory of Biomedical Materials, College of Materials Sciences and Engineering, Beijing University of Chemical Technology, Beijing 100029, China. .,Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China
| | - Xiaoguang Dai
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Beijing Laboratory of Biomedical Materials, College of Materials Sciences and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Bingran Yu
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Beijing Laboratory of Biomedical Materials, College of Materials Sciences and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Nana Zhao
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Beijing Laboratory of Biomedical Materials, College of Materials Sciences and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Fu-Jian Xu
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Beijing Laboratory of Biomedical Materials, College of Materials Sciences and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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11
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Puglisi A, Bassini S, Reimhult E. Cyclodextrin-Appended Superparamagnetic Iron Oxide Nanoparticles as Cholesterol-Mopping Agents. Front Chem 2021; 9:795598. [PMID: 34869239 PMCID: PMC8636776 DOI: 10.3389/fchem.2021.795598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/01/2021] [Indexed: 11/13/2022] Open
Abstract
Cholesterol plays a crucial role in major cardiovascular and neurodegenerative diseases, including Alzheimer's disease and rare genetic disorders showing altered cholesterol metabolism. Cyclodextrins (CDs) have shown promising therapeutic efficacy based on their capacity to sequester and mobilise cholesterol. However, the administration of monomeric CDs suffers from several drawbacks due to their lack of specificity and poor pharmacokinetics. We present core-shell superparamagnetic iron oxide nanoparticles (SPIONs) functionalised with CDs appended to poly (2-methyl-2-oxazoline) polymers grafted in a dense brush to the iron oxide core. The CD-decorated nanoparticles (CySPIONs) are designed so that the macrocycle is specifically cleaved off the nanoparticle's shell at a slightly acidic pH. In the intended use, free monomeric CDs will then mobilise cholesterol out of the lysosome to the cytosol and beyond through the formation of an inclusion complex. Hence, its suitability as a therapeutic platform to remove cholesterol in the lysosomal compartment. Synthesis and full characterization of the polymer as well as of the core-shell SPION are presented. Cholesterol-binding activity is shown through an enzymatic assay.
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Affiliation(s)
- Antonino Puglisi
- Department of Nanobiotechnology, Institute of Biologically Inspired Materials, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - Simone Bassini
- Department of Nanobiotechnology, Institute of Biologically Inspired Materials, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria.,Life Sciences Department, University of Modena and Reggio Emilia, Modena, Italy
| | - Erik Reimhult
- Department of Nanobiotechnology, Institute of Biologically Inspired Materials, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
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12
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Zhao G, Ge T, Yan Y, Shuai Q, Su WK. Highly Efficient Modular Construction of Functional Drug Delivery Platform Based on Amphiphilic Biodegradable Polymers via Click Chemistry. Int J Mol Sci 2021; 22:10407. [PMID: 34638747 PMCID: PMC8508947 DOI: 10.3390/ijms221910407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 12/03/2022] Open
Abstract
Amphiphilic copolymers with pendant functional groups in polyester segments are widely used in nanomedicine. These enriched functionalities are designed to form covalent conjugates with payloads or provide additional stabilization effects for encapsulated drugs. A general method is successfully developed for the efficient preparation of functional biodegradable PEG-polyester copolymers via click chemistry. Firstly, in the presence of mPEG as initiator, Sn(Oct)2-catalyzed ring-opening polymerization of the α-alkynyl functionalized lactone with D,L-lactide or ε-caprolactone afforded linear mPEG-polyesters bearing multiple pendant alkynyl groups. Kinetic studies indicated the formation of random copolymers. Through copper-catalyzed azide-alkyne cycloaddition reaction, various small azido molecules with different functionalities to polyester segments are efficiently grafted. The molecular weights, polydispersities and grafting efficiencies of azido molecules of these copolymers were investigated by NMR and GPC. Secondly, it is demonstrated that the resulting amphiphilic functional copolymers with low CMC values could self-assemble to form nanoparticles in aqueous media. In addition, the in vitro degradation study and cytotoxicity assays indicated the excellent biodegradability and low cytotoxicity of these copolymers. This work provides a general approach toward the preparation of functional PEG-polyester copolymers in a quite efficient way, which may further facilitate the application of functional PEG-polyesters as drug delivery materials.
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Affiliation(s)
- Guangkuo Zhao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (G.Z.); (T.G.)
| | - Tongtong Ge
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (G.Z.); (T.G.)
| | - Yunfeng Yan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China;
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Qi Shuai
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (G.Z.); (T.G.)
| | - Wei-Ke Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (G.Z.); (T.G.)
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13
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Arraez FJ, Van Steenberge PHM, Sobieski J, Matyjaszewski K, D’hooge DR. Conformational Variations for Surface-Initiated Reversible Deactivation Radical Polymerization: From Flat to Curved Nanoparticle Surfaces. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00855] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Francisco J. Arraez
- Laboratory for Chemical Technology, Technologiepark 125, Zwijnaarde, Ghent 9052, Belgium
| | | | - Julian Sobieski
- Center for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Center for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Dagmar R. D’hooge
- Laboratory for Chemical Technology, Technologiepark 125, Zwijnaarde, Ghent 9052, Belgium
- Centre for Textile Science and Engineering, Ghent University, Technologiepark 70A, Zwijnaarde, Ghent 9052, Belgium
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14
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Shukla SK, Sarode A, Kanabar DD, Muth A, Kunda NK, Mitragotri S, Gupta V. Bioinspired particle engineering for non-invasive inhaled drug delivery to the lungs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112324. [PMID: 34474875 DOI: 10.1016/j.msec.2021.112324] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/02/2021] [Accepted: 07/12/2021] [Indexed: 02/08/2023]
Abstract
Pulmonary drug delivery is governed by several biophysical parameters of delivery carriers, such as particle size, shape, density, charge, and surface modifications. Although much attention has been given to other parameters, particle shape effects have rarely been explored. In this work, we assess the influence of particle shape of inhaled delivery carriers on their aerodynamic properties and macrophage uptake by using polymeric microparticles of different geometries ranging in various sizes. Doxorubicin was conjugated to the polymer particles and the bioconjugates were characterized. Interestingly, the results of in-vitro lung deposition, performed using a next generation impactor, demonstrated a significant improvement in the aerodynamic properties of the rod-shaped particles with a high aspect ratio as compared to spherical particles with the same equivalent volume. The results of a macrophage uptake experiment demonstrate that the high aspect ratio particles were phagocytosed less than spherical particles. Furthermore, the cytotoxicity of these doxorubicin-conjugated particles was determined against murine macrophages, resulting in reduced toxicity when treated with high aspect ratio particles as compared to spherical particles. This project provides valuable insights into the influence of particle shape on aerodynamic properties and primary defense mechanisms in the peripheral lungs, while using polymeric microparticles of various sizes and geometries. Further systematic development can help translate these findings to preclinical and clinical studies for designing efficient inhalable delivery carriers.
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Affiliation(s)
- Snehal K Shukla
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Apoorva Sarode
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Dipti D Kanabar
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Aaron Muth
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Nitesh K Kunda
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Samir Mitragotri
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Vivek Gupta
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA.
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15
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Kalva N, Uthaman S, Lee SJ, Lim YJ, Augustine R, Huh KM, Park IK, Kim I. Degradable pH-responsive polymer prodrug micelles with aggregation-induced emission for cellular imaging and cancer therapy. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Gegenhuber T, Müllner M. Molecular Polymer Brushes Made via Ring‐Opening Metathesis Polymerization from Cleavable RAFT Macromonomers. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Thomas Gegenhuber
- Key Centre for Polymers and Colloids School of Chemistry The University of Sydney Sydney NSW 2006 Australia
| | - Markus Müllner
- Key Centre for Polymers and Colloids School of Chemistry The University of Sydney Sydney NSW 2006 Australia
- The University of Sydney Nano Institute (Sydney Nano) Sydney NSW 2006 Australia
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17
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Synthesis and cytotoxicity evaluation of gemcitabine-tobacco mosaic virus conjugates. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Sun Y, Davis E. Nanoplatforms for Targeted Stimuli-Responsive Drug Delivery: A Review of Platform Materials and Stimuli-Responsive Release and Targeting Mechanisms. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:746. [PMID: 33809633 PMCID: PMC8000772 DOI: 10.3390/nano11030746] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 12/12/2022]
Abstract
To achieve the promise of stimuli-responsive drug delivery systems for the treatment of cancer, they should (1) avoid premature clearance; (2) accumulate in tumors and undergo endocytosis by cancer cells; and (3) exhibit appropriate stimuli-responsive release of the payload. It is challenging to address all of these requirements simultaneously. However, the numerous proof-of-concept studies addressing one or more of these requirements reported every year have dramatically expanded the toolbox available for the design of drug delivery systems. This review highlights recent advances in the targeting and stimuli-responsiveness of drug delivery systems. It begins with a discussion of nanocarrier types and an overview of the factors influencing nanocarrier biodistribution. On-demand release strategies and their application to each type of nanocarrier are reviewed, including both endogenous and exogenous stimuli. Recent developments in stimuli-responsive targeting strategies are also discussed. The remaining challenges and prospective solutions in the field are discussed throughout the review, which is intended to assist researchers in overcoming interdisciplinary knowledge barriers and increase the speed of development. This review presents a nanocarrier-based drug delivery systems toolbox that enables the application of techniques across platforms and inspires researchers with interdisciplinary information to boost the development of multifunctional therapeutic nanoplatforms for cancer therapy.
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Affiliation(s)
| | - Edward Davis
- Materials Engineering Program, Mechanical Engineering Department, Auburn University, 101 Wilmore Drive, Auburn, AL 36830, USA;
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19
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Hu X, Oh JK. Direct Polymerization Approach to Synthesize Acid‐Degradable Block Copolymers Bearing Imine Pendants for Tunable pH‐Sensitivity and Enhanced Release. Macromol Rapid Commun 2020; 41:e2000394. [DOI: 10.1002/marc.202000394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/31/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaolei Hu
- Department of Chemistry and Biochemistry Concordia University H4B 1R6 Montreal Quebec Canada
| | - Jung Kwon Oh
- Department of Chemistry and Biochemistry Concordia University H4B 1R6 Montreal Quebec Canada
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20
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Martins C, Chauhan VM, Araújo M, Abouselo A, Barrias CC, Aylott JW, Sarmento B. Advanced polymeric nanotechnology to augment therapeutic delivery and disease diagnosis. Nanomedicine (Lond) 2020; 15:2287-2309. [PMID: 32945230 DOI: 10.2217/nnm-2020-0145] [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] [Indexed: 01/10/2023] Open
Abstract
Therapeutic and diagnostic payloads are usually associated with properties that compromise their efficacy, such as poor aqueous solubility, short half-life, low bioavailability, nonspecific accumulation and diverse side effects. Nanotechnological solutions have emerged to circumvent some of these drawbacks, augmenting therapeutic and/or diagnostic outcomes. Nanotechnology has benefited from the rise in polymer science research for the development of novel nanosystems for therapeutic and diagnostic purposes. Polymers are a widely used class of biomaterials, with a considerable number of regulatory approvals for application in clinics. In addition to their versatility in production and functionalization, several synthetic and natural polymers demonstrate biocompatible properties that dictate their successful biological performance. This article highlights the physicochemical characteristics of a variety of natural and synthetic biocompatible polymers, as well as their role in the manufacture of nanotechnology-based systems, state-of-art applications in disease treatment and diagnosis, and current challenges in finding a way to clinics.
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Affiliation(s)
- Cláudia Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Ruade Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Veeren M Chauhan
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Marco Araújo
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal
| | - Amjad Abouselo
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Cristina C Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal
| | - Jonathan W Aylott
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-393, Porto, Portugal.,CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116, Gandra, Portugal
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Liang X, Li X, Gao X, Zhang Y, Wei W, Liu X. Fabrication of unimolecular micelle-based nanomedicines from hyperbranched polymers containing both terminal and internal reactive groups. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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22
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Kalva N, Uthaman S, Augustine R, Jeon SH, Huh KM, Park IK, Kim I. Photo- and pH-Responsive Polycarbonate Block Copolymer Prodrug Nanomicelles for Controlled Release of Doxorubicin. Macromol Biosci 2020; 20:e2000118. [PMID: 32567108 DOI: 10.1002/mabi.202000118] [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: 04/07/2020] [Revised: 05/18/2020] [Indexed: 02/06/2023]
Abstract
Photo/pH dual-responsive amphiphilic diblock copolymers with alkyne functionalized pendant o-nitrobenzyl ester group are synthesized using poly(ethylene glycol) as a macroinitiator. The pendant alkynes are functionalized as aldehyde groups by the azide-alkyne Huisgen cycloaddition. The anticancer drug doxorubicin (DOX) molecules are then covalently conjugated through acid-sensitive Schiff-base linkage. The resultant prodrug copolymers self-assemble into nanomicelles in aqueous solution. The prodrug nanomicelles have a well-defined morphology with an average size of 20-40 nm. The dual-stimuli are applied individually or simultaneously to study the release behavior of DOX. Under UV light irradiation, nanomicelles are disassembled due to the ONB ester photocleavage. The light-controlled DOX release behavior is demonstrated using fluorescence spectroscopy. Due to the pH-sensitive imine linkage the DOX molecules are released rapidly from the nanomicelles at the acidic pH of 5.0, whereas only minimal amount of DOX molecules is released at the pH of 7.4. The DOX release rate is tunable by applying the dual-stimuli simultaneously. In vitro studies against colon cancer cells demonstrate that the nanomicelles show the efficient cellular uptake and the intracellular DOX release, indicating that the newly designed copolymers with dual-stimuli-response have significant potential applications as a smart nanomedicine against cancer.
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Affiliation(s)
- Nagendra Kalva
- BK21 PLUS Centre for Advanced Chemical Technology, Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Saji Uthaman
- Department of Polymer Science and Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Rimesh Augustine
- BK21 PLUS Centre for Advanced Chemical Technology, Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Su Hyeon Jeon
- BK21 PLUS Centre for Advanced Chemical Technology, Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - In-Kyu Park
- Department of Biomedical Science, BK21 PLUS Centre for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea
| | - Il Kim
- BK21 PLUS Centre for Advanced Chemical Technology, Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
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23
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Yang XL, Wu WX, Li J, Hu ZE, Wang N, Yu XQ. A facile strategy to construct fluorescent pH-sensitive drug delivery vehicle. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122496] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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24
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Gruschwitz FV, Klein T, Catrouillet S, Brendel JC. Supramolecular polymer bottlebrushes. Chem Commun (Camb) 2020; 56:5079-5110. [PMID: 32347854 DOI: 10.1039/d0cc01202e] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The field of supramolecular chemistry has long been known to generate complex materials of different sizes and shapes via the self-assembly of single or multiple low molar mass building blocks. Matching the complexity found in natural assemblies, however, remains a long-term challenge considering its precision in organizing large macromolecules into well-defined nanostructures. Nevertheless, the increasing understanding of supramolecular chemistry has paved the way to several attempts in arranging synthetic macromolecules into larger ordered structures based on non-covalent forces. This review is a first attempt to summarize the developments in this field, which focus mainly on the formation of one-dimensional, linear, cylindrical aggregates in solution with pendant polymer chains - therefore coined supramolecular polymer bottlebrushes in accordance with their covalent equivalents. Distinguishing by the different supramolecular driving forces, we first describe systems based on π-π interactions, which comprise, among others, the well-known perylene motif, but also the early attempts using cyclophanes. However, the majority of reported supramolecular polymer bottlebrushes are formed by hydrogen bonds as they can for example be found in linear and cyclic peptides, as well as so called sticker molecules containing multiple urea groups. Besides this overview on the reported motifs and their impact on the resulting morphology of the polymer nanostructures, we finally highlight the potential benefits of such non-covalent interactions and refer to promising future directions of this still mostly unrecognized field of supramolecular research.
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Affiliation(s)
- Franka V Gruschwitz
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany.
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25
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Narancic T, Cerrone F, Beagan N, O’Connor KE. Recent Advances in Bioplastics: Application and Biodegradation. Polymers (Basel) 2020; 12:E920. [PMID: 32326661 PMCID: PMC7240402 DOI: 10.3390/polym12040920] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/07/2020] [Accepted: 04/13/2020] [Indexed: 12/12/2022] Open
Abstract
The success of oil-based plastics and the continued growth of production and utilisation can be attributed to their cost, durability, strength to weight ratio, and eight contributions to the ease of everyday life. However, their mainly single use, durability and recalcitrant nature have led to a substantial increase of plastics as a fraction of municipal solid waste. The need to substitute single use products that are not easy to collect has inspired a lot of research towards finding sustainable replacements for oil-based plastics. In addition, specific physicochemical, biological, and degradation properties of biodegradable polymers have made them attractive materials for biomedical applications. This review summarises the advances in drug delivery systems, specifically design of nanoparticles based on the biodegradable polymers. We also discuss the research performed in the area of biophotonics and challenges and opportunities brought by the design and application of biodegradable polymers in tissue engineering. We then discuss state-of-the-art research in the design and application of biodegradable polymers in packaging and emphasise the advances in smart packaging development. Finally, we provide an overview of the biodegradation of these polymers and composites in managed and unmanaged environments.
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Affiliation(s)
- Tanja Narancic
- UCD Earth Institute and School of Biomolecular and Biomedical Science, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland; (T.N.); (F.C.); (N.B.)
- BiOrbic - Bioeconomy Research Centre, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland
| | - Federico Cerrone
- UCD Earth Institute and School of Biomolecular and Biomedical Science, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland; (T.N.); (F.C.); (N.B.)
- BiOrbic - Bioeconomy Research Centre, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland
| | - Niall Beagan
- UCD Earth Institute and School of Biomolecular and Biomedical Science, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland; (T.N.); (F.C.); (N.B.)
| | - Kevin E. O’Connor
- UCD Earth Institute and School of Biomolecular and Biomedical Science, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland; (T.N.); (F.C.); (N.B.)
- BiOrbic - Bioeconomy Research Centre, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland
- School of Biomolecular and Biomedical Sciences, Earth Institute, O’Brien Centre for Science, University College Dublin, Belfield, 4, D04 N2E5 Dublin, Ireland
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Jafari A, Yan L, Mohamed MA, Wu Y, Cheng C. Well-Defined Diblock Poly(ethylene glycol)- b-Poly(ε-caprolactone)-Based Polymer-Drug Conjugate Micelles for pH-Responsive Delivery of Doxorubicin. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1510. [PMID: 32224890 PMCID: PMC7177263 DOI: 10.3390/ma13071510] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/17/2020] [Accepted: 03/20/2020] [Indexed: 01/07/2023]
Abstract
Nanoparticles have emerged as versatile carriers for various therapeutics and can potentially treat a wide range of diseases in an accurate and disease-specific manner. Polymeric biomaterials have gained tremendous attention over the past decades, owing to their tunable structure and properties. Aliphatic polyesters have appealing attributes, including biodegradability, non-toxicity, and the ability to incorporate functional groups within the polymer backbone. Such distinctive properties have rendered them as a class of highly promising biomaterials for various biomedical applications. In this article, well-defined alkyne-functionalized poly(ethylene glycol)-b-poly(ε-caprolactone) (PEG-b-PCL) diblock copolymer was synthesized and studied for pH-responsive delivery of doxorubicin (DOX). The alkyne-functionalized PEG-b-PCL diblock copolymer was prepared by the synthesis of an alkyne-functionalized ε-caprolactone (CL), followed by ring-opening polymerization (ROP) using PEG as the macroinitiator. The alkyne functionalities of PEG-b-PCL were modified through copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC) click reaction to graft aldehyde (ALD) groups and obtain PEG-b-PCL-g-ALD. Subsequently, DOX was conjugated on PEG-b-PCL-g-ALD through the Schiff base reaction. The resulting PEG-b-PCL-g-DOX polymer-drug conjugate (PDC) self-assembled into a nano-sized micellar structure with facilitated DOX release in acidic pH due to the pH-responsive linkage. The nanostructures of PDC micelles were characterized using transmission electron microscopy (TEM) and dynamic light scattering (DLS). In vitro studies of the PDC micelles, revealed their improved anticancer efficiency towards MCF-7 cells as compared to free DOX.
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Affiliation(s)
- Amin Jafari
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA; (A.J.); (M.A.M.)
| | - Lingyue Yan
- Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA;
| | - Mohamed Alaa Mohamed
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA; (A.J.); (M.A.M.)
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Yun Wu
- Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA;
| | - Chong Cheng
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA; (A.J.); (M.A.M.)
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28
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Jazani AM, Oh JK. Development and disassembly of single and multiple acid-cleavable block copolymer nanoassemblies for drug delivery. Polym Chem 2020. [DOI: 10.1039/d0py00234h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Acid-degradable block copolymer-based nanoassemblies are promising intracellular candidates for tumor-targeting drug delivery as they exhibit the enhanced release of encapsulated drugs through their dissociation.
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Affiliation(s)
- Arman Moini Jazani
- Department of Chemistry and Biochemistry
- Concordia University
- Montreal
- Canada H4B 1R6
| | - Jung Kwon Oh
- Department of Chemistry and Biochemistry
- Concordia University
- Montreal
- Canada H4B 1R6
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29
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Facile preparation of pH-responsive PEGylated prodrugs for activated intracellular drug delivery. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.04.052] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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30
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Wang H, Pemberton JE. Direct Nanoscopic Measurement of Laminar Slip Flow Penetration of Deformable Polymer Brush Surfaces: Synergistic Effect of Grafting Density and Solvent Quality. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13646-13655. [PMID: 31558025 DOI: 10.1021/acs.langmuir.9b02357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A detailed quantitative nanoscopic description of soft surfaces under dynamic flow is lacking, despite its importance. To better understand the role of surface texture in nanoscopic mass transport in complex media, we used Förster resonance energy transfer in combination with total internal reflectance fluorescence microscopy (FRET-TIRFM) to directly measure laminar slip flow penetration depth (slip length) on poly(N-isopropylacrylamide) (pNIPAM) thin films (50-110 nm) of different grafting densities (0.60, 0.38, and 0.27 chain/nm2) in solvents of different qualities created via cononsolvency in situ. Nontrivial synergistic interplay of grafting density and solvent quality on slip length was observed. Slip lengths are typically tens of nm (40-100 nm), increasing and then reaching a plateau with applied linear flow velocity (192-2,952 μm/s) regardless of experimental system. Slip length was systematically larger for lower density films, but the effect of grafting density was more significant in a good solvent than a poor solvent. Interestingly, however, the stagnant film thickness (polymer swollen thickness minus the slip length) collapsed to almost a singular value for a given grafting density regardless of solvent quality, likely suggesting a large gradient of segmental mobility at nonequilibrium. Moreover, we found that slip flow penetrates into soft pNIPAM surfaces more deeply in a good solvent than in a poor solvent and that this behavior was general and independent of grafting density. This behavior is counter to the notion that less interaction between a fluid (probe) and a solid surface promotes slip.
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Affiliation(s)
- Huan Wang
- Department of Chemistry and Biochemistry University of Arizona , Tucson , Arizona 85721 , United States
| | - Jeanne E Pemberton
- Department of Chemistry and Biochemistry University of Arizona , Tucson , Arizona 85721 , United States
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31
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Puglisi A, Bayir E, Timur S, Yagci Y. pH-Responsive Polymersome Microparticles as Smart Cyclodextrin-Releasing Agents. Biomacromolecules 2019; 20:4001-4007. [DOI: 10.1021/acs.biomac.9b01083] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Antonino Puglisi
- Department of Chemistry, Maslak, Istanbul Technical University, Istanbul, 34469, Turkey
| | - Ece Bayir
- Central Research Testing and Analysis Laboratory Research and Application Center, Ege University Bornova, Izmir, 35100, Turkey
| | - Suna Timur
- Central Research Testing and Analysis Laboratory Research and Application Center, Ege University Bornova, Izmir, 35100, Turkey
- Faculty of Science, Biochemistry Department, Ege University Bornova, Izmir, 35100, Turkey
| | - Yusuf Yagci
- Department of Chemistry, Maslak, Istanbul Technical University, Istanbul, 34469, Turkey
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Thermo-responsive micelles prepared from brush-like block copolymers of proline- and oligo(lactide)-functionalized norbornenes. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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Sun H, Yan L, Chang MYZ, Carter KA, Zhang R, Slyker L, Lovell JF, Wu Y, Cheng C. A multifunctional biodegradable brush polymer-drug conjugate for paclitaxel/gemcitabine co-delivery and tumor imaging. NANOSCALE ADVANCES 2019; 1:2761-2771. [PMID: 32864564 PMCID: PMC7451085 DOI: 10.1039/c9na00282k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 05/22/2019] [Indexed: 05/07/2023]
Abstract
A multifunctional biodegradable brush polymer-drug conjugate (BPDC) is developed for the co-delivery of hydrophobic paclitaxel (PTX) and hydrophilic gemcitabine (GEM) chemotherapeutics, as well as a tumor imaging agent. A novel ternary copolymer of conventional, acetylenyl-functionalized and allyl-functionalized lactides is prepared to serve as the backbone precursor of BPDC. Acetylenyl groups of the copolymer are then reacted with poly(ethylene glycol) (PEG) side chains and cyanine5.5, a fluorescent probe, via azide-alkyne click reactions. Subsequently, the allyl groups of the yielded PEG-grafted brush polymer are used to covalently link PTX and GEM onto the backbone via thiol-ene click reactions. The resulting BPDC exhibits an average hydrodynamic diameter of 111 nm. Sustained and simultaneous release of PTX and GEM from the BPDC is observed in phosphate buffered saline, with the release of PTX showing sensitivity in mild acidic conditions. In vitro studies using MIA PaCa-2 human pancreatic cancer cells illustrate the cellular uptake and cytotoxicity of the BPDC. In vivo, the BPDC possesses long blood circulation, tumor accumulation, and enables optical tumor imaging. Further development and testing is warranted for multifunctional conjugated brush polymer systems that integrate combination chemotherapies and imaging.
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Affiliation(s)
- Haotian Sun
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Lingyue Yan
- Department of Biomedical Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Michael Yu Zarng Chang
- Department of Biomedical Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Kevin A. Carter
- Department of Biomedical Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Runsheng Zhang
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Leigh Slyker
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Jonathan F. Lovell
- Department of Biomedical Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Yun Wu
- Department of Biomedical Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
| | - Chong Cheng
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New YorkBuffaloNew York 14260USA
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34
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Liu S, Hu C, Liu Y, Zhao X, Pang M, Lin J. One‐Pot Synthesis of DOX@Covalent Organic Framework with Enhanced Chemotherapeutic Efficacy. Chemistry 2019; 25:4315-4319. [DOI: 10.1002/chem.201806242] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Sainan Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Chunling Hu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Ying Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
| | - Xueyan Zhao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
| | - Maolin Pang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
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35
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Chen HH, Lu IL, Liu TI, Tsai YC, Chiang WH, Lin SC, Chiu HC. Indocyanine green/doxorubicin-encapsulated functionalized nanoparticles for effective combination therapy against human MDR breast cancer. Colloids Surf B Biointerfaces 2019; 177:294-305. [PMID: 30771581 DOI: 10.1016/j.colsurfb.2019.02.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/22/2019] [Accepted: 02/02/2019] [Indexed: 10/27/2022]
Abstract
To overcome low therapeutic efficacy of chemotherapy against multidrug resistance (MDR) breast cancer, a combination therapy system based upon functionalized polymer nanoparticles comprising poly(γ-glutamic acid)-g-poly(lactic-co-glycolic acid) (γ-PGA-g-PLGA) as the major component was developed. The NPs were loaded with doxorubicin (DOX) and indocyanine green (ICG) for dual modality cancer treatment and coated with cholesterol-PEG (C-PEG) for MDR abrogation in treatment of human MDR breast cancer. The in vitro cellular uptake of the DOX/ICG loaded nanoparticles (DI-NPs) by MDR cancer cells was significantly enhanced owing to effective inhibition of the P-gp activity by C-PEG and γ-PGA receptor-mediated endocytosis. DOX localization in cytoplasm and nucleus was observed particularly with the photo-thermal effect that facilitated intracellular drug release. As a result, the C-PEG coated DI-NPs after photo-irradiation exhibited a synergistic effect of combination (chemo/thermal) therapy to depress the proliferation of MDR cancer calls. The ex vivo biodistribution study revealed an enhanced tumor accumulation of C-PEG (2000) coated DI-NPs in MCF-7/MDR tumor-bearing nude mice due to the excellent EPR effects by the NP surface PEGylation. The MDR tumor growth was almost entirely inhibited in the group receiving combination therapy from CP2k-DI-NPs and photo-irradiation along with substantial cell apoptosis of tumor tissues examined by immunohistochemical staining. The results demonstrate a promising dual modality therapy system, CP2k-DI-NPs, developed in this work for effective combination therapy of human MDR breast cancer.
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Affiliation(s)
- Hsin-Hung Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - I-Lin Lu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan; Department of Surgery, Hsinchu Mackay Memorial Hospital, Hsinchu, 300, Taiwan
| | - Te-I Liu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Yuan-Chung Tsai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - Sung-Chyr Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan.
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan.
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36
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Zhu B, Wang L, Huang J, Xiang X, Tang Y, Cheng C, Yan F, Ma L, Qiu L. Ultrasound-triggered perfluorocarbon-derived nanobombs for targeted therapies of rheumatoid arthritis. J Mater Chem B 2019. [DOI: 10.1039/c9tb00978g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The targeted US-triggered PFC-based “nanobombs” with US used to treat the RA in this work would offer a new treatment strategy and have a great potential for the application in the areas of theranostic agent and nanomedicine treatment.
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Affiliation(s)
- Bihui Zhu
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
| | - Liyun Wang
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
| | - Jianbo Huang
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
| | - Xi Xiang
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
| | - Yuanjiao Tang
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
| | - Chong Cheng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Feng Yan
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
| | - Lang Ma
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
| | - Li Qiu
- Department of Ultrasound
- Laboratory of Ultrasound Imaging Drug
- West China Hospital
- Sichuan University
- Chengdu 610041
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37
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Xu W, Li G, Long H, Fu G, Pu L. Glutathione responsive poly(HPMA) conjugate nanoparticles for efficient 6-MP delivery. NEW J CHEM 2019. [DOI: 10.1039/c9nj02582k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
GSH-sensitive poly(HPMA)–PTA was developed and its antitumor effect on HepG2 cells was evaluated.
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Affiliation(s)
- Weibing Xu
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
| | - Guichen Li
- Gansu Provincial Key Laboratory of Aridland Crop Science
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Haitao Long
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
| | - Guorui Fu
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
| | - Lumei Pu
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
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38
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Saha B, Choudhury N, Seal S, Ruidas B, De P. Aromatic Nitrogen Mustard-Based Autofluorescent Amphiphilic Brush Copolymer as pH-Responsive Drug Delivery Vehicle. Biomacromolecules 2018; 20:546-557. [PMID: 30521313 DOI: 10.1021/acs.biomac.8b01468] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Delivery of clinically approved nonfluorescent drugs is facing challenges because it is difficult to monitor the intracellular drug delivery without incorporating any integrated fluorescence moiety into the drug carrier. The present investigation reports the synthesis of a pH-responsive autofluorescent polymeric nanoscaffold for the administration of nonfluorescent aromatic nitrogen mustard chlorambucil (CBL) drug into the cancer cells. Copolymerization of poly(ethylene glycol) (PEG) appended styrene and CBL conjugated N-substituted maleimide monomers enables the formation of well-defined luminescent alternating copolymer. These amphiphilic brush copolymers self-organized in aqueous medium into 25-68 nm nanoparticles, where the CBL drug is enclosed into the core of the self-assembled nanoparticles. In vitro studies revealed ∼70% drug was retained under physiological conditions at pH 7.4 and 37 °C. At endolysosomal pH 5.0, 90% of the CBL was released by the pH-induced cleavage of the aliphatic ester linkages connecting CBL to the maleimide unit. Although the nascent nanoparticle (without drug conjugation) is nontoxic, the drug conjugated nanoparticle showed higher toxicity and superior cell killing capability in cervical cancer (HeLa) cells rather than in normal cells. Interestingly, the copolymer without any conventional chromophore exhibited photoluminescence under UV light irradiation due to the presence of "through-space" π-π interaction between the C═O group of maleimide unit and the adjacent benzene ring of the styrenic monomer. This property helped us intracellular tracking of CBL conjugated autofluorescent nanocarriers through fluorescence microscope imaging. Finally, the 4-(4-nitrobenzyl)pyridine (NBP) colorimetric assay was executed to examine the ability of CBL-based polymeric nanomaterials toward alkylation of DNA.
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Affiliation(s)
| | | | | | - Bhuban Ruidas
- Centre for Healthcare Science and Technology , Indian Institute of Engineering Science and Technology , Shibpur - 711103 , West Bengal , India
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39
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Chen Y, Zhou H, Sun Z, Li H, Huang H, Liu L, Chen Y. Shell of amphiphilic molecular bottlebrush matters as unimolecular micelle. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.06.078] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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40
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Qiu G, Zhao L, Liu X, Zhao Q, Liu F, Liu Y, Liu Y, Gu H. ROMP synthesis of benzaldehyde-containing amphiphilic block polynorbornenes used to conjugate drugs for pH-responsive release. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.03.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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41
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An H, Xu K, Chang L, Wang Y, Qin J, Li W. Thermo-responsive self-healable hydrogels with extremely mild base degradability and bio-compatibility. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.05.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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42
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Cai K, Ying H, Cheng J. Dynamic Ureas with Fast and pH-Independent Hydrolytic Kinetics. Chemistry 2018; 24:7345-7348. [PMID: 29624762 DOI: 10.1002/chem.201801138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 03/29/2018] [Indexed: 12/13/2022]
Abstract
Low cost, high performance hydrolysable polymers are of great importance in biomedical applications and materials industries. While many applications require materials to have a degradation profile insensitive to external pH to achieve consistent release profiles under varying conditions, hydrolysable chemistry techniques developed so far have pH-dependent hydrolytic kinetics. This work reports the design and synthesis of a new type of hydrolysable polymer that has identical hydrolysis kinetics from pH 3 to 11. The unprecedented pH independent hydrolytic kinetics of the aryl ureas were shown to be related to the dynamic bond dissociation controlled hydrolysis mechanism; the resulting hindered poly(aryl urea) can be degraded with a hydrolysis half-life of 10 min in solution. More importantly, these fast degradable hindered aromatic polyureas can be easily prepared by addition polymerization from commercially available monomers and are resistant to hydrolysis in solid form for months under ambient storage conditions. The combined features of good stability in solid state and fast hydrolysis at various pH values is unprecedented in polyurea material, and will have implications for materials design and applications, such as sacrificial coatings and biomaterials.
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Affiliation(s)
- Kaimin Cai
- Department of Materials Science and Engineering, 1304 W. Green St., Urbana, IL 61801, USA
| | - Hanze Ying
- Department of Materials Science and Engineering, 1304 W. Green St., Urbana, IL 61801, USA
| | - Jianjun Cheng
- Department of Materials Science and Engineering, 1304 W. Green St., Urbana, IL 61801, USA.,Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.,Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.,Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.,Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.,Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
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43
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Liao J, Zheng H, Fei Z, Lu B, Zheng H, Li D, Xiong X, Yi Y. Tumor-targeting and pH-responsive nanoparticles from hyaluronic acid for the enhanced delivery of doxorubicin. Int J Biol Macromol 2018; 113:737-747. [PMID: 29505869 DOI: 10.1016/j.ijbiomac.2018.03.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/28/2018] [Accepted: 03/01/2018] [Indexed: 12/12/2022]
Abstract
In this study, intracellular pH-responsive nanoparticles (NPs) of hyaluronic acid-hydrazone linkage-doxorubicin (HA-hyd-DOX) were designed and prepared for acid-triggered release of doxorubicin through a hydrazone linkage. A series of amphiphilic polymeric prodrugs were obtained, which can be self-assembled in aqueous media, the formed NPs exhibited a spherical core-shell type and the uniform size was ranging from 167 to 220nm. Moreover, the HA-hyd-DOX NPs exhibited a good stability in vitro and the drug release profiles showed that the DOX release was obviously mediated by pH gradient. Additionally, the cell counting assay kit-8 (CCK-8) demonstrated that the drug delivery system in this study performed a lower cytotoxicity on normal cells (Mouse fibroblast cells, L929) and higher inhibition ratio on tumor cells (Human cervical cancer cells, HeLa) in response to drug release with the intracellular pH environment. Furthermore, confocal laser scanning microscopy (CLSM) images and flow cytometric profiles of HeLa cells showed an efficiently cellular uptake due to the receptor-mediated affinity of CD44 for HA with high specificity. These results suggest that this pH dependent drug delivery system based on HA will provide insights into the design of potential prodrugs for the cancer therapy.
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Affiliation(s)
- Jianhong Liao
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Haoran Zheng
- Key laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Zengming Fei
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Bo Lu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Hua Zheng
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China.
| | - Dan Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Xiong Xiong
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Ying Yi
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
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44
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Wang SW, Lin YK, Fang JY, Lee RS. Photo-responsive polymeric micelles and prodrugs: synthesis and characterization. RSC Adv 2018; 8:29321-29337. [PMID: 35547974 PMCID: PMC9084478 DOI: 10.1039/c8ra04580a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/11/2018] [Indexed: 11/25/2022] Open
Abstract
Bio-recognizable and photocleavable amphiphilic glycopolymers and prodrugs containing photodegradable linkers (i.e. 5-hydroxy-2-nitrobenzyl alcohol) as junction points between bio-recognizable hydrophilic glucose (or maltose) and hydrophobic poly(α-azo-ε-caprolactone)-grafted alkyne or drug chains were synthesized by combining ring-opening polymerization, nucleophilic substitution, and “click” post-functionalization with alkynyl-pyrene and 2-nitrobenzyl-functionalized indomethacin (IMC). The block-grafted glycocopolymers could self-assemble into spherical photoresponsive micelles with hydrodynamic sizes of <200 nm. Fluorescence emission measurements indicated the release of Nile red, a hydrophobic dye, encapsulated by the Glyco-ONB-P(αN3CL-g-alkyne)n micelles, in response to irradiation caused by micelle disruption. Light-triggered bursts were observed for IMC-loaded or -conjugated micelles during the first 5 h. Following light irradiation, the drug release rate of IMC-conjugated micelles was faster than that of IMC-loaded micelles. Selective lectin binding experiments confirmed that glycosylated Glyco-ONB-P(αN3CL-g-alkyne)n could be used in bio-recognition applications. The nano-prodrug with and without UV irradiation was associated with negligible levels of toxicity at concentrations of less than 30 μg mL−1. The confocal microscopy and flow cytometry results indicated that the uptake of doxorubicin (DOX)-loaded micelles with UV irradiation by HeLa cells was faster than without UV irradiation. The DOX-loaded Gluco-ONB-P(αN3CL-g-PONBIMC)10 micelles effectively inhibited HeLa cells' proliferation with a half-maximal inhibitory concentration of 8.8 μg mL−1. Bio-recognizable and photocleavable amphiphilic glycopolymers and prodrugs containing photodegradable linkers as junction points between hydrophilic glycose and hydrophobic poly(α-azo-ε-caprolactone)-grafted alkyne or drug chains were synthesized.![]()
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Affiliation(s)
- Shiu-Wei Wang
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 33302
- Taiwan
| | - Yin-Ku Lin
- Department of Traditional Chinese Medicine
- Chang Gung Memorial Hospital at Keelung
- Keelung
- Taiwan
| | - Jia-You Fang
- Graduate Institute of Natural Products
- Chang Gung University
- Tao-Yuan
- Taiwan
| | - Ren-Shen Lee
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 33302
- Taiwan
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45
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Zhai Y, Zhou X, Jia L, Ma C, Song R, Deng Y, Hu X, Sun W. Acetal-Linked Paclitaxel Polymeric Prodrug Based on Functionalized mPEG-PCL Diblock Polymer for pH-Triggered Drug Delivery. Polymers (Basel) 2017; 9:E698. [PMID: 30965997 PMCID: PMC6418821 DOI: 10.3390/polym9120698] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 11/17/2017] [Accepted: 12/07/2017] [Indexed: 02/04/2023] Open
Abstract
The differences in micro-environment between cancer cells and the normal ones offer the possibility to develop stimuli-responsive drug-delivery systems for overcoming the drawbacks in the clinical use of anticancer drugs, such as paclitaxel, doxorubicin, and etc. Hence, we developed a novel endosomal pH-sensitive paclitaxel (PTX) prodrug micelles based on functionalized poly(ethylene glycol)-poly(ε-caprolactone) (mPEG-PCL) diblock polymer with an acid-cleavable acetal (Ace) linkage (mPEG-PCL-Ace-PTX). The mPEG-PCL-Ace-PTX₅ with a high drug content of 23.5 wt % was self-assembled in phosphate buffer (pH 7.4, 10 mM) into nanosized micelles with an average diameter of 68.5 nm. The in vitro release studies demonstrated that mPEG-PCL-Ace-PTX₅ micelles was highly pH-sensitive, in which 16.8%, 32.8%, and 48.2% of parent free PTX was released from mPEG-PCL-Ace-PTX₅ micelles in 48 h at pH 7.4, 6.0, and 5.0, respectively. Thiazolyl Blue Tetrazolium Bromide (MTT) assays suggested that the pH-sensitive PTX prodrug micelles displayed higher therapeutic efficacy against MCF-7 cells compared with free PTX. Therefore, the PTX prodrug micelles with acetal bond may offer a promising strategy for cancer therapy.
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Affiliation(s)
- Yinglei Zhai
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, China.
- State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute (LSMRI), Qingdao 266101, China.
| | - Xing Zhou
- Hainan Institute of Materia Medica, Haikou 570311, China.
| | - Lina Jia
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Chao Ma
- College of Food & Pharmaceutical Engineering, Guizhou Institute of Technology, Guizhou 550003, China.
| | - Ronghua Song
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Yanhao Deng
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Xueyao Hu
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Wei Sun
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, China.
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46
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Deng B, Palermo EF, Shi Y. Comparison of chain-growth polymerization in solution versus on surface using reactive coarse-grained simulations. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.09.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Zhang YW, Wang JW, Wu HS, Wang MX, Luo YH, Sun BW. Re-arrangements of 4-[(4H-1,2,4-triazol-4-ylimino)methyl]phenol with different inorganic anions: Crystal structure and fluorescence properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.05.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Multifunctional nanoparticles self-assembled from polyethylenimine-based graft polymers as efficient anticancer drug delivery. Colloids Surf B Biointerfaces 2017; 155:118-127. [DOI: 10.1016/j.colsurfb.2017.02.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 01/24/2017] [Accepted: 02/21/2017] [Indexed: 11/21/2022]
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49
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Fu YN, Li Y, Li G, Yang L, Yuan Q, Tao L, Wang X. Adaptive Chitosan Hollow Microspheres as Efficient Drug Carrier. Biomacromolecules 2017; 18:2195-2204. [DOI: 10.1021/acs.biomac.7b00592] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ya-nan Fu
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Yongsan Li
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
- The Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Guofeng Li
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Lei Yang
- Cancer Institute and Hospital, Peking Union Medical College and Chinese Academy of Medical Science, Beijing 100021, People’s Republic of China
| | - Qipeng Yuan
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Lei Tao
- The Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Xing Wang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
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50
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Bawa KK, Oh JK. Stimulus-Responsive Degradable Polylactide-Based Block Copolymer Nanoassemblies for Controlled/Enhanced Drug Delivery. Mol Pharm 2017; 14:2460-2474. [DOI: 10.1021/acs.molpharmaceut.7b00284] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kamaljeet K. Bawa
- Department of Chemistry and
Biochemistry, Concordia University, Montreal, Quebec, Canada H4B 1R6
| | - Jung Kwon Oh
- Department of Chemistry and
Biochemistry, Concordia University, Montreal, Quebec, Canada H4B 1R6
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