1
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Akbar MU, Khattak S, Khan MI, Saddozai UAK, Ali N, AlAsmari AF, Zaheer M, Badar M. A pH-responsive bi-MIL-88B MOF coated with folic acid-conjugated chitosan as a promising nanocarrier for targeted drug delivery of 5-Fluorouracil. Front Pharmacol 2023; 14:1265440. [PMID: 37745070 PMCID: PMC10517339 DOI: 10.3389/fphar.2023.1265440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 08/22/2023] [Indexed: 09/26/2023] Open
Abstract
Cancer has remained one of the leading causes of death worldwide, with a lack of effective treatment. The intrinsic shortcomings of conventional therapeutics regarding tumor specificity and non-specific toxicity prompt us to look for alternative therapeutics to mitigate these limitations. In this regard, we developed multifunctional bimetallic (FeCo) bi-MIL-88B-FC MOFs modified with folic acid-conjugated chitosan (FC) as drug delivery systems (DDS) for targeted delivery of 5-Fluorouracil (5-FU). The bi-MIL-88B nanocarriers were characterized through various techniques, including powder X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray, thermogravimetric analysis, and Fourier transform infrared spectroscopy. Interestingly, 5-FU@bi-MIL-88B-FC showed slower release of 5-FU due to a gated effect phenomenon endowed by FC surface coating compared to un-modified 5-FU@bi-MIL-88B. The pH-responsive drug release was observed, with 58% of the loaded 5-FU released in cancer cells mimicking pH (5.2) compared to only 24.9% released under physiological pH (5.4). The in vitro cytotoxicity and cellular internalization experiments revealed the superiority of 5-FU@bi-MIL-88B-FC as a highly potent targeted DDS against folate receptor (FR) positive SW480 cancer cells. Moreover, due to the presence of Fe and Co in the structure, bi-MIL-88B exhibited peroxidase-like activity for chemodynamic therapy. Based on the results, 5-FU@bi-MIL-88B-FC could serve as promising candidate for smart DDS by sustained drug release and selective targeting.
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Affiliation(s)
- Muhammad Usman Akbar
- Gomal Center of Biochemistry and Biotechnology, Gomal University, Dera Ismail Khan, Pakistan
| | - Saadullah Khattak
- Henan International Joint Laboratory of Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Malik Ihsanullah Khan
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
| | - Umair Ali Khan Saddozai
- Department of Preventive Medicine, Institute of Bioinformatics, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Nemat Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah F. AlAsmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Zaheer
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences (LUMS), Lahore, Pakistan
| | - Muhammad Badar
- Gomal Center of Biochemistry and Biotechnology, Gomal University, Dera Ismail Khan, Pakistan
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2
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Progress in Polymeric Micelles for Drug Delivery Applications. Pharmaceutics 2022; 14:pharmaceutics14081636. [PMID: 36015262 PMCID: PMC9412594 DOI: 10.3390/pharmaceutics14081636] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/27/2022] [Accepted: 07/31/2022] [Indexed: 11/17/2022] Open
Abstract
Polymeric micelles (PMs) have made significant progress in drug delivery applications. A robust core-shell structure, kinetic stability and the inherent ability to solubilize hydrophobic drugs are the highlights of PMs. This review presents the recent advances and understandings of PMs with a focus on the latest drug delivery applications. The types, methods of preparation and characterization of PMs are described along with their applications in oral, parenteral, transdermal, intranasal and other drug delivery systems. The applications of PMs for tumor-targeted delivery have been provided special attention. The safety, quality and stability of PMs in relation to drug delivery are also provided. In addition, advanced polymeric systems and special PMs are also reviewed. The in vitro and in vivo stability assessment of PMs and recent understandings in this area are provided. The patented PMs and clinical trials on PMs for drug delivery applications are considered indicators of their tremendous future applications. Overall, PMs can help overcome many unresolved issues in drug delivery.
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3
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Park C, Lim JW, Park G, Kim HO, Lee S, Kwon YH, Kim SE, Yeom M, Na W, Song D, Kim E, Haam S. Kinetic stability modulation of polymeric nanoparticles for enhanced detection of influenza virus via penetration of viral fusion peptides. J Mater Chem B 2021; 9:9658-9669. [PMID: 34647566 DOI: 10.1039/d1tb01847g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Specific interactions between viruses and host cells provide essential insights into material science-based strategies to combat emerging viral diseases. pH-triggered viral fusion is ubiquitous to multiple viral families and is important for understanding the viral infection cycle. Inspired by this process, virus detection has been achieved using nanomaterials with host-mimetic membranes, enabling interactions with amphiphilic hemagglutinin fusion peptides of viruses. Most research has been on designing functional nanoparticles with fusogenic capability for virus detection, and there has been little exploitation of the kinetic stability to alter the ability of nanoparticles to interact with viral membranes and improve their sensing performance. In this study, a homogeneous fluorescent assay using self-assembled polymeric nanoparticles (PNPs) with tunable responsiveness to external stimuli is developed for rapid and straightforward detection of an activated influenza A virus. Dissociation of PNPs induced by virus insertion can be readily controlled by varying the fraction of hydrophilic segments in copolymers constituting PNPs, giving rise to fluorescence signals within 30 min and detection of various influenza viruses, including H9N2, CA04(H1N1), H4N6, and H6N8. Therefore, the designs demonstrated in this study propose underlying approaches for utilizing engineered PNPs through modulation of their kinetic stability for direct and sensitive identification of infectious viruses.
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Affiliation(s)
- Chaewon Park
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| | - Jong-Woo Lim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| | - Geunseon Park
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| | - Hyun-Ouk Kim
- Division of Chemical Engineering and Bioengineering College of Art, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sojeong Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| | - Yuri H Kwon
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| | | | - Minjoo Yeom
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Woonsung Na
- College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea.,Animal Medical Institute, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Daesub Song
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Eunjung Kim
- Division of Bioengineering, Incheon National University, Incheon 22012, Republic of Korea.
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea.
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4
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Alves RC, Schulte ZM, Luiz MT, Bento da Silva P, Frem RCG, Rosi NL, Chorilli M. Breast Cancer Targeting of a Drug Delivery System through Postsynthetic Modification of Curcumin@N 3-bio-MOF-100 via Click Chemistry. Inorg Chem 2021; 60:11739-11744. [PMID: 34101467 DOI: 10.1021/acs.inorgchem.1c00538] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Metal-organic frameworks (MOFs) offer many opportunities for applications across biology and medicine. Their wide range of chemical composition makes toxicologically acceptable formulation possible, and their high level of functionality enables possible applications as delivery systems for therapeutics agents. Surface modifications have been used in drug delivery systems to minimize their interaction with the bulk, improving their specificity as targeted carriers. Herein, we discuss a strategy to achieve a tumor-targeting drug-loaded MOF using "click" chemistry to anchor functional folic acid (FA) molecules on the surface of N3-bio-MOF-100. Using curcumin (CCM) as an anticancer drug, we observed drug loading encapsulation efficiencies (DLEs) of 24.02 and 25.64% after soaking N3-bio-MOF-100 in CCM solutions for 1 day and 3 days, respectively. The success of postsynthetic modification of FA was confirmed by 1H NMR spectroscopy, Fourier transform infrared spectroscopy (FTIR), and liquid chromatography-mass spectrometry (LC-MS). The stimuli-responsive drug release studies demonstrated an increase of CCM released under acidic microenvironments. Moreover, the cell viability assay was performed on the 4T1 (breast cancer) cell line in the presence of CCM@N3-bio-MOF-100 and CCM@N3-bio-MOF-100/FA carriers to confirm its biological compatibility. In addition, a cellular uptake study was conducted to evaluate the targeting of tumor cells.
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Affiliation(s)
- Renata C Alves
- Department of Drugs and Medicines, School of Pharmaceutical Sciences of São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01 - s/n - Campos Ville, 14800-903 Araraquara, São Paulo, Brazil
| | - Zachary M Schulte
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 1560, United States
| | - Marcela T Luiz
- Department of Pharmaceutical Sciences, School of Pharmaceutical Science of Ribeirão Preto, University of São Paulo (USP), Avenida do Café, s/n - Campus da USP, 14040-903 Ribeirão Preto, Sao Paulo, Brazil
| | - Patrícia Bento da Silva
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia (UnB), Campus Universitario Darcy Ribeiro - Asa Norte, 70910-900 Brasilia, Federal District, Brazil
| | - Regina C G Frem
- Institute of Chemistry, São Paulo State University (UNESP), Prof. Francisco Degni 55, PO Box 355, 14800-970 Araraquara, São Paulo, Brazil
| | - Nathaniel L Rosi
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 1560, United States
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences of São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01 - s/n - Campos Ville, 14800-903 Araraquara, São Paulo, Brazil
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5
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Sola P, Krishnamurthy P, Chintamaneni PK, Pindiprolu SKS, Kumari M. Novel drug delivery systems of β2 adrenoreceptor agonists to suppress SNCA gene expression and mitochondrial oxidative stress in Parkinson’s disease management. Expert Opin Drug Deliv 2020; 17:1119-1132. [DOI: 10.1080/17425247.2020.1779218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Piyong Sola
- Department of Pharmacology, JSS College of Pharmacy (A Constituent College of JSS Academy of Higher Education & Research), Ooty, The Nilgiris, Tamil Nadu, India
| | - Praveen Krishnamurthy
- Department of Pharmacology, JSS College of Pharmacy (A Constituent College of JSS Academy of Higher Education & Research), Ooty, The Nilgiris, Tamil Nadu, India
| | - Pavan Kumar Chintamaneni
- Department of Pharmacology, JSS College of Pharmacy (A Constituent College of JSS Academy of Higher Education & Research), Ooty, The Nilgiris, Tamil Nadu, India
| | - Sai Kiran S.S Pindiprolu
- Department of Pharmacology, JSS College of Pharmacy (A Constituent College of JSS Academy of Higher Education & Research), Ooty, The Nilgiris, Tamil Nadu, India
| | - Mamta Kumari
- Department of Pharmacology, JSS College of Pharmacy (A Constituent College of JSS Academy of Higher Education & Research), Ooty, The Nilgiris, Tamil Nadu, India
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6
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Bridonneau N, Noël V, Zrig S, Carn F. Self-Assembly of Gold Nanoparticles with Oppositely Charged, Long, Linear Chains of Periodic Copolymers. J Phys Chem B 2020; 124:900-908. [DOI: 10.1021/acs.jpcb.9b09590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N. Bridonneau
- Université de Paris, Laboratoire Matière et Systèmes Complexes, CNRS, UMR 7057, 10 rue A. Domon et L. Duquet, F-75013 Paris, France
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
| | - V. Noël
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
| | - S. Zrig
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
| | - F. Carn
- Université de Paris, Laboratoire Matière et Systèmes Complexes, CNRS, UMR 7057, 10 rue A. Domon et L. Duquet, F-75013 Paris, France
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7
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Laha B, Das S, Maiti S, Sen KK. Novel propyl karaya gum nanogels for bosentan: In vitro and in vivo drug delivery performance. Colloids Surf B Biointerfaces 2019; 180:263-272. [PMID: 31059984 DOI: 10.1016/j.colsurfb.2019.04.064] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/31/2019] [Accepted: 04/29/2019] [Indexed: 01/21/2023]
Abstract
The amphiphilic propyl Karaya gum (KG) with a degree of propyl group substitution of 3.24 was synthesized to design self-assembled nanogels as carriers for bosentan monohydrate, a poorly soluble antihypertensive drug. The drug was physically hosted into the hydrophobic core of the micellar nanogels by solvent evaporation method. TEM images revealed spherical shape and core-shell morphology of the nanogels. Depending upon polymer: drug weight ratio, the drug entrapment efficiency of >85% was attained. The carriers had hydrodynamic diameter in the range of 230-305 nm with narrow size distribution. The zeta potential of -23.0 to -24.9 mV and low critical association concentration (CAC) of 8.32 mg/l provided evidence that the colloidal nanogel system was physically stable. Thermodynamics of the propyl KG system in water favored spontaneous self-assembly of propyl KG. FTIR, thermal and x-ray analyses suggested that the drug was compatible in the hydrophobic confines of the nanogels. The micellar nanogels liberated their contents in simulated gastrointestinal condition in a pH-dependent manner over a period of 10 h. Peppas-Sahlin modeling of in vitro drug release data suggested that the polymer relaxation/swelling mechanism dominated the drug release process. Pre-clinical testing of the mucoadhesive nanogel formulations exhibited that the system could monitor the anti-hypertensive activity for a prolonged period. Overall, this propyl KG micellar nanogel system had a great potential and splendid outlook to serve as novel oral controlled release carriers for poorly soluble drugs with outstanding pharmacodynamics.
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Affiliation(s)
- Bibek Laha
- Department of Pharmaceutics, Gupta College of Technological Sciences, Ashram More, G.T. Road, Asansol, 713301, West Bengal, India(1)
| | - Sanjib Das
- Department of Pharmaceutics, Gupta College of Technological Sciences, Ashram More, G.T. Road, Asansol, 713301, West Bengal, India(1)
| | - Sabyasachi Maiti
- Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India.
| | - Kalyan Kumar Sen
- Department of Pharmaceutics, Gupta College of Technological Sciences, Ashram More, G.T. Road, Asansol, 713301, West Bengal, India(1)
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8
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Exploring anti-MRSA activity of chitosan-coated liposomal dicloxacillin. J Microbiol Methods 2019; 156:23-28. [DOI: 10.1016/j.mimet.2018.11.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 11/15/2018] [Accepted: 11/17/2018] [Indexed: 01/09/2023]
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9
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Cai C, Lin J, Lu Y, Zhang Q, Wang L. Polypeptide self-assemblies: nanostructures and bioapplications. Chem Soc Rev 2018; 45:5985-6012. [PMID: 27722321 DOI: 10.1039/c6cs00013d] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polypeptide copolymers can self-assemble into diverse aggregates. The morphology and structure of aggregates can be varied by changing molecular architectures, self-assembling conditions, and introducing secondary components such as polymers and nanoparticles. Polypeptide self-assemblies have gained significant attention because of their potential applications as delivery vehicles for therapeutic payloads and as additives in the biomimetic mineralization of inorganics. This review article provides an overview of recent advances in nanostructures and bioapplications related to polypeptide self-assemblies. We highlight recent contributions to developing strategies for the construction of polypeptide assemblies with increasing complexity and novel functionality that are suitable for bioapplications. The relationship between the structure and properties of the polypeptide aggregates is emphasized. Finally, we briefly outline our perspectives and discuss the challenges in the field.
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Affiliation(s)
- Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Yingqing Lu
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Qian Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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10
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Soni KS, Lei F, Desale SS, Marky LA, Cohen SM, Bronich TK. Tuning polypeptide-based micellar carrier for efficient combination therapy of ErbB2-positive breast cancer. J Control Release 2017; 264:276-287. [PMID: 28870832 DOI: 10.1016/j.jconrel.2017.08.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 08/19/2017] [Accepted: 08/29/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Kruti S Soni
- Department of Pharmaceutical Sciences, Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, 985830 Nebraska Medical Center, Omaha, NE 68198-5830, USA
| | - Fan Lei
- Department of Pharmaceutical Sciences, Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, 985830 Nebraska Medical Center, Omaha, NE 68198-5830, USA
| | - Swapnil S Desale
- Department of Pharmaceutical Sciences, Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, 985830 Nebraska Medical Center, Omaha, NE 68198-5830, USA
| | - Luis A Marky
- Department of Pharmaceutical Sciences, Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, 985830 Nebraska Medical Center, Omaha, NE 68198-5830, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Samuel M Cohen
- Department of Pathology and Microbiology, University of Nebraska Medical Center/Fred and Pamela Buffet Cancer Center, Omaha, NE 68198-3135, USA
| | - Tatiana K Bronich
- Department of Pharmaceutical Sciences, Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, 985830 Nebraska Medical Center, Omaha, NE 68198-5830, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA.
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11
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Sill KN, Sullivan B, Carie A, Semple JE. Synthesis and Characterization of Micelle-Forming PEG-Poly(Amino Acid) Copolymers with Iron-Hydroxamate Cross-Linkable Blocks for Encapsulation and Release of Hydrophobic Drugs. Biomacromolecules 2017; 18:1874-1884. [DOI: 10.1021/acs.biomac.7b00317] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kevin N. Sill
- Intezyne Technologies, 3720 Spectrum Boulevard, Suite 104, Tampa, Florida 33612, United States
| | - Bradford Sullivan
- Intezyne Technologies, 3720 Spectrum Boulevard, Suite 104, Tampa, Florida 33612, United States
| | - Adam Carie
- Intezyne Technologies, 3720 Spectrum Boulevard, Suite 104, Tampa, Florida 33612, United States
| | - J. Edward Semple
- Intezyne Technologies, 3720 Spectrum Boulevard, Suite 104, Tampa, Florida 33612, United States
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12
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Ulbrich K, Holá K, Šubr V, Bakandritsos A, Tuček J, Zbořil R. Targeted Drug Delivery with Polymers and Magnetic Nanoparticles: Covalent and Noncovalent Approaches, Release Control, and Clinical Studies. Chem Rev 2016; 116:5338-431. [DOI: 10.1021/acs.chemrev.5b00589] [Citation(s) in RCA: 1120] [Impact Index Per Article: 140.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Karel Ulbrich
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Kateřina Holá
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Vladimir Šubr
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Aristides Bakandritsos
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Jiří Tuček
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
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13
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Shukla SK, Shukla SK, Govender PP, Giri NG. Biodegradable polymeric nanostructures in therapeutic applications: opportunities and challenges. RSC Adv 2016. [DOI: 10.1039/c6ra15764e] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Biodegradable polymeric nanostructures (BPNs) have shown great promise in different therapeutic applications such as diagnosis, imaging, drug delivery, cosmetics, organ implants, and tissue engineering.
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Affiliation(s)
- S. K. Shukla
- Department of Polymer Science
- Bhaskaracharya College of Applied Sciences
- University of Delhi
- Delhi-110075
- India
| | - Sudheesh K. Shukla
- Department of Applied Chemistry
- University of Johannesburg
- Johannesburg
- South Africa
| | - Penny P. Govender
- Department of Applied Chemistry
- University of Johannesburg
- Johannesburg
- South Africa
| | - N. G. Giri
- Department of Chemistry
- Shivaji College
- University of Delhi
- New Delhi-110027
- India
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14
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He T, Li D, Yang Y, Ding J, Jin F, Zhuang X, Chen X. Mesomeric configuration makes polyleucine micelle an optimal nanocarrier. Biomater Sci 2016; 4:814-8. [DOI: 10.1039/c6bm00022c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mesomeric polyleucine micelle with cRGD decoration is selected as a promising targeting drug delivery system.
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Affiliation(s)
- Taoyuan He
- Department of Chemical Engineering
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Di Li
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Yanan Yang
- Department of Chemical Engineering
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Feng Jin
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Xiuli Zhuang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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15
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Xiao H, Wang L. Effects of X-shaped reduction-sensitive amphiphilic block copolymer on drug delivery. Int J Nanomedicine 2015; 10:5309-25. [PMID: 26346880 PMCID: PMC4554410 DOI: 10.2147/ijn.s85230] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
To study the effects of X-shaped amphiphilic block copolymers on delivery of docetaxel (DTX) and the reduction-sensitive property on drug release, a novel reduction-sensitive amphiphilic copolymer, (PLGA)2-SS-4-arm-PEG2000 with a Gemini-like X-shape, was successfully synthesized. The formation of nanomicelles was proved with respect to the blue shift of the emission fluorescence as well as the fluorescent intensity increase of coumarin 6-loaded particles. The X-shaped polymers exhibited a smaller critical micelle concentration value and possessed higher micellar stability in comparison with those of linear ones. The size of X-shaped (PLGA)2-SS-4-arm-PEG2000 polymer nanomicelles (XNMs) was much smaller than that of nanomicelles prepared with linear polymers. The reduction sensitivity of polymers was confirmed by the increase of micellar sizes as well as the in vitro drug release profile of DTX-loaded XNMs (DTX/XNMs). Cytotoxicity assays in vitro revealed that the blank XNMs were nontoxic against A2780 cells up to a concentration of 50 µg/mL, displaying good biocompatibility. DTX/XNMs were more toxic against A2780 cells than other formulations in both dose- and time-dependent manners. Cellular uptake assay displayed a higher intracellular drug delivery efficiency of XNMs than that of nanomicelles prepared with linear polymers. Besides, the promotion of tubulin polymerization induced by DTX was visualized by immunofluorescence analysis, and the acceleration of apoptotic process against A2780 cells was also imaged using a fluorescent staining method. Therefore, this X-shaped reduction-sensitive (PLGA)2-SS-4-arm-PEG2000 copolymer could effectively improve the micellar stability and significantly enhance the therapeutic efficacy of DTX by increasing the cellular uptake and selectively accelerating the drug release inside cancer cells.
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Affiliation(s)
- Haijun Xiao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, People's Republic of China
| | - Lu Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, People's Republic of China
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Dual-responsive mPEG-PLGA-PGlu hybrid-core nanoparticles with a high drug loading to reverse the multidrug resistance of breast cancer: an in vitro and in vivo evaluation. Acta Biomater 2015; 16:156-68. [PMID: 25662165 DOI: 10.1016/j.actbio.2015.01.039] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 01/21/2015] [Accepted: 01/26/2015] [Indexed: 11/21/2022]
Abstract
In this study, monomethoxy (polyethylene glycol)-b-P (d,l-lactic-co-glycolic acid)-b-P (l-glutamic acid) (mPEG-PLGA-PGlu) nanoparticles with the ability to rapidly respond to the endolysosomal pH and hydrolase were prepared and the pH-sensitivity was tuned by adjusting the length of the PGlu segment. The mPEG5k-PLGA20k-PGlu (60) nanoparticles were specifically responsive to an endosomal pH of 5.0-6.0 due to the configuration transition of the PGlu segment and rapidly initiated chemical degradation after incubation with proteinase k for 10 min. Doxorubicin hydrochloride (DOX), used as a model drug, was easily encapsulated into nanoparticles and the DOX-loaded nanoparticles (DOX-NPs) exhibited a pH-dependent and enzyme-sensitive release profile in vitro. The dual sensitivity enabled the rapid escape of DOX-loaded nanoparticles from the endolysosomal system to target cellular nuclei, which resulted in increased cell toxicity against MCF/ADR resistant breast cancer cells and a higher cellular uptake than free DOX. In Vivo Imaging studies indicated that the nanoparticles could continuously accumulate in the tumor tissues through EPR effects and Ex vivo Imaging biodistribution studies indicated that DOX-NPs increased drug penetration into tumors compared with normal tissues. The in vivo antitumor activity demonstrated that DOX-loaded NPs had less body loss and a significant regression of tumor growth, indicating the increased anti-tumor efficacy and lower systemic toxicity. Therefore, this dual sensitive nanoparticle system may be a potential nanocarrier to overcome the multidrug resistance exhibited by breast cancer.
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Ding J, Li C, Zhang Y, Xu W, Wang J, Chen X. Chirality-mediated polypeptide micelles for regulated drug delivery. Acta Biomater 2015; 11:346-55. [PMID: 25278445 DOI: 10.1016/j.actbio.2014.09.043] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/06/2014] [Accepted: 09/23/2014] [Indexed: 12/19/2022]
Abstract
Two kinds of triblock poly(ethylene glycol)-polyleucine (PEG-PLeu) copolymers were synthesized through the ring-opening polymerization of L-Leu N-carboxyanhydride (NCA), or equivalent D-Leu NCA and L-Leu NCA with amino-terminated PEG as a macroinitiator. The amphiphilic copolymers spontaneously self-assembled into spherical micellar aggregations in an aqueous environment. The micelle with a racemic polypeptide core exhibited smaller critical micelle concentration and diameter compared to those with a levorotatory polypeptide core. A model anthracycline antineoplastic agent, i.e., doxorubicin (DOX), was loaded into micelles through nanoprecipitation, and the PEG-P(D,L-Leu) micelle exhibited higher drug-loading efficacy than that with a P(L-Leu) core-this difference was attributed to the flexible and compact P(L-Leu) core. Sustained in vitro DOX release from micelles with both levorotatory and racemic polypeptide cores was observed, and the DOX-loaded PEG-P(D,L-Leu) micelle exhibited a slower release rate. More interestingly, DOX-loaded micelles exhibited chirality-mediated antitumor efficacy in vitro and in vivo, which are all better than that of free DOX. Furthermore, both enhanced tumor inhibition and excellent security in vivo were confirmed by histopathological or in situ cell apoptosis analyses. Therefore, DOX-loaded PEG-PLeu micelles appear to be an interesting nanoscale polymeric formulation for promising malignancy chemotherapy.
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Affiliation(s)
- Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Chen Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Ying Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Jincheng Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
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PSMA ligand conjugated PCL-PEG polymeric micelles targeted to prostate cancer cells. PLoS One 2014; 9:e112200. [PMID: 25386942 PMCID: PMC4227701 DOI: 10.1371/journal.pone.0112200] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 10/13/2014] [Indexed: 12/03/2022] Open
Abstract
In this content, a small molecular ligand of prostate specific membrane antigen (SMLP) conjugated poly (caprolactone) (PCL)-b-poly (ethylene glycol) (PEG) copolymers with different block lengths were synthesized to construct a satisfactory drug delivery system. Four different docetaxel-loaded polymeric micelles (DTX-PMs) were prepared by dialysis with particle sizes less than 60 nm as characterized by dynamic light scattering (DLS) and transmission electron microscope (TEM). Optimization of the prepared micelles was conducted based on short-term stability and drug-loading content. The results showed that optimized systems were able to remain stable over 7 days. Compared with Taxotere, DTX-PMs with the same ratio of hydrophilic/hydrophobic chain length displayed similar sustained release behaviors. The cytotoxicity of the optimized targeted DTX-PCL12K-PEG5K-SMLP micelles (DTX-PMs2) and non-targeted DTX-PCL12K-mPEG5K micelles (DTX-PMs1) were evaluated by MTT assays using prostate specific membrane antigen (PSMA) positive prostate adenocarcinoma cells (LNCaP). The results showed that the targeted micelles had a much lower IC50 than their non-targeted counterparts (48 h: 0.87±0.27 vs 13.48±1.03 µg/ml; 72 h: 0.02±0.008 vs 1.35±0.54 µg/ml). In vitro cellular uptake of PMs2 showed 5-fold higher fluorescence intensity than that of PMs1 after 4 h incubation. According to these results, the novel nano-sized drug delivery system based on DTX-PCL-PEG-SMLP offers great promise for the treatment of prostatic cancer.
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Li C, Xu W, Ding J, Zhang Y, Wang J, Zhuang X, Chen X. Micellization of antineoplastic agent to significantly upregulate efficacy and security. Macromol Biosci 2014; 15:328-41. [PMID: 25380513 DOI: 10.1002/mabi.201400356] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/12/2014] [Accepted: 10/30/2014] [Indexed: 12/12/2022]
Abstract
The amphiphilic diblock copolymer composed of methoxy poly(ethylene glycol) and racemic oligoleucine was synthesized which formed into micelle with uniform size in aqueous environment. Doxorubicin (DOX) was loaded into micelle aided by noncovalent interactions with high drug loading efficiency. The DOX-loaded micelle (referred as M-DOX) demonstrated the sustained drug release in vitro and excellent antiproliferative capability toward both MG63 and Saos-2 cells. Furthermore, for both MG63 and Saos-2-xenografted BALB/c nude mouse models, M-DOX exhibited enhanced intratumoral distribution, improved antitumor efficacy, and reduced side effects compared with free DOX. Therefore, the polypeptide micelle showed a bright prospect for controlled delivery of antitumor drugs in vivo.
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Affiliation(s)
- Chen Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, 130041, P. R. China
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Daglar B, Ozgur E, Corman ME, Uzun L, Demirel GB. Polymeric nanocarriers for expected nanomedicine: current challenges and future prospects. RSC Adv 2014. [DOI: 10.1039/c4ra06406b] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Self-Assembled Micelles Composed of Doxorubicin Conjugated Y-Shaped PEG-Poly(glutamic acid)2 Copolymers via Hydrazone Linkers. Molecules 2014; 19:11915-32. [PMID: 25116804 PMCID: PMC6271086 DOI: 10.3390/molecules190811915] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 07/18/2014] [Accepted: 07/21/2014] [Indexed: 02/05/2023] Open
Abstract
In this work, micelles composed of doxorubicin-conjugated Y-shaped copolymers (YMs) linked via an acid-labile linker were constructed. Y-shaped copolymers of mPEG-b-poly(glutamate-hydrazone-doxorubicin)2 and linear copolymers of mPEG-b-poly(glutamate-hydrazone-doxorubicin) were synthesized and characterized. Particle size, size distribution, morphology, drug loading content (DLC) and drug release of the micelles were determined. Alterations in size and DLC of the micelles could be achieved by varying the hydrophobic block lengths. Moreover, at fixed DLCs, YMs showed a smaller diameter than micelles composed of linear copolymers (LMs). Also, all prepared micelles showed sustained release behaviors under physiological conditions over 72 h. DOX loaded in YMs was released more completely, with 30% more drug released in acid. The anti-tumor efficacy of the micelles against HeLa cells was evaluated by MTT assays, and YMs exhibited stronger cytotoxic effects than LMs in a dose- and time-dependent manner. Cellular uptake studied by CLSM indicated that YMs and LMs were readily taken up by HeLa cells. According to the results of this study, doxorubicin-conjugated Y-shaped PEG-(polypeptide)2 copolymers showed advantages over linear copolymers, like assembling into smaller nanoparticles, faster drug release in acid, which may correspond to higher cellular uptake and enhanced extracellular/intracellular drug release, indicating their potential in constructing nano-sized drug delivery systems.
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Novel hydrophobin-coated docetaxel nanoparticles for intravenous delivery: In vitro characteristics and in vivo performance. Eur J Pharm Sci 2014; 60:1-9. [DOI: 10.1016/j.ejps.2014.04.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 04/14/2014] [Accepted: 04/25/2014] [Indexed: 12/30/2022]
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Smejkalová D, Nešporová K, Hermannová M, Huerta-Angeles G, Cožíková D, Vištejnová L, Safránková B, Novotný J, Kučerík J, Velebný V. Paclitaxel isomerisation in polymeric micelles based on hydrophobized hyaluronic acid. Int J Pharm 2014; 466:147-55. [PMID: 24614580 DOI: 10.1016/j.ijpharm.2014.03.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 03/04/2014] [Accepted: 03/05/2014] [Indexed: 12/01/2022]
Abstract
Physical and chemical structure of paclitaxel (PTX) was studied after its incorporation into polymeric micelles made of hyaluronic acid (HA) (Mw=15 kDa) grafted with C6 or C18:1 acyl chains. PTX was physically incorporated into the micellar core by solvent evaporation technique. Maximum loading capacity for HAC6 and HAC18:1 was determined to be 2 and 14 wt.%, respectively. The loading efficiency was higher for HAC18:1 and reached 70%. Independently of the derivative, loaded HA micelles had spherical size of approximately 60-80 nm and demonstrated slow and sustained release of PTX in vitro. PTX largely changed its form from crystalline to amorphous after its incorporation into the micelle's interior. This transformation increased PTX sensitivity towards stressing conditions, mainly to UV light exposure, during which the structure of amorphous PTX isomerized and formed C3C11 bond within its structure. In vitro cytotoxicity assay revealed that polymeric micelles loaded with PTX isomer had higher cytotoxic effect to normal human dermal fibroblasts (NHDF) and human colon carcinoma cells (HCT-116) than the same micelles loaded with non-isomerized PTX. Further observation indicated that PTX isomer influenced in different ways cell morphology and markers of cell cycle. Taken together, PTX isomer loaded in nanocarrier systems may have improved anticancer activity in vivo than pure PTX.
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Affiliation(s)
- Daniela Smejkalová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic.
| | - Kristina Nešporová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Martina Hermannová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | | | - Dagmar Cožíková
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Lucie Vištejnová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Barbora Safránková
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jaroslav Novotný
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jiří Kučerík
- University of Koblenz-Landau, Campus Landau, Institute for Environmental Sciences, Fortstraße 7, 768 29, Landau, Germany
| | - Vladimír Velebný
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
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Wang J, Xia Q. Alpha-lipoic acid-loaded nanostructured lipid carrier: sustained release and biocompatibility to HaCaT cells in vitro. Drug Deliv 2013; 21:328-41. [PMID: 24144220 DOI: 10.3109/10717544.2013.846435] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
ALA-loaded nanostructured lipid carrier (ALA-NLC) was designed to improve physicochemical stability and water solubility, and promote sustained release of ALA as well as determine the biocompatibility of ALA-NLC. The ALA-NLC manufactured using hot high-pressure homogenization technique was investigated in terms of size, zeta potential, FTIR analysis and release behavior. In vitro cytotoxicity and biocompatibility were determined by incubating with HaCaT cells using the MTT assay, HE staining and Hoechst 33342 staining. Cell behavior and cellular division of HaCaT cells untreated and treated by ALA-NLC were investigated in real-time images gathered using time-lapse imaging system. The release investigation illustrated that only 6.9% of ALA released in 30 min from ALA-NLC formation, whereas it was 30.3% in free ALA system. ALA-NLC possessed a satisfactory release behavior of sustained release up to 72 h. It showed that ALA-NLC did not exert hazardous effect on HaCaT cells up to 81.9 mg/L without morphological alterations, revealing a satisfactory biocompatibility. Evidence was provided from time-lapse imaging system that cell behavior and cellular division of ALA-NLC treated HaCaT cells were in accordance with the control. These results of this investigation demonstrated that NLC encapsulated ALA formation (ALA-NLC) can improve stability, solubility and release of ALA; ALA-NLC was biocompatible to HaCaT cells.
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Affiliation(s)
- Jianmin Wang
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University , Nanjing , China and
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Pignatello R, Pantò V, Basile L, Leonardi A, Guarino C, La Rosa C. Characterization of micellar systems produced by new amphiphilic conjugates of poly(ethylene glycol). Drug Dev Ind Pharm 2013; 40:1463-7. [DOI: 10.3109/03639045.2013.828226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Li W, Feng S, Guo Y. Tailoring polymeric micelles to optimize delivery to solid tumors. Nanomedicine (Lond) 2013; 7:1235-52. [PMID: 22931449 DOI: 10.2217/nnm.12.88] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Block copolymer micelles have shown great potential in drug delivery systems, not only for overcoming the drawbacks of small agents such as water insolubility and wide distribution in normal tissues, but also for avoiding traditional nanoparticle formulation shortcomings, including in vivo instability and fast clearance from the blood. However, for translating micellar formulations to clinical practice, it is essential to overcome the many in vivo obstacles. Surmounting these barriers strongly depends on micellar physicochemical properties, which can be further optimized by the unique physiological aspects of solid tumors such as low pH, high temperature and the presence of abnormal vessels. Herein, based on the Flory parameter and scaling theory, the fundamental mechanisms and correlations in vitro/in vivo between self assembly, drug loading and release, stability, intracellular delivery and in vivo distribution, as well as micellar composition, size and microstructural tailoring are systematically revisited. The methods for enhancing micellar performance in solid tumors were consequently proposed through well-defined core-corona structure tailoring.
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Affiliation(s)
- Wei Li
- International Joint Cancer Institute, The Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, PR China.
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Min D, Zhang X, He W, Zhang Y, Li P, Zhang M, Liu J, Liu S, Xu F, Du Y, Zhang Z. Direct immobilization of glucose oxidase in magnetic mesoporous bioactive glasses. J Mater Chem B 2013; 1:3295-3303. [DOI: 10.1039/c3tb20480d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang CY, Yang YQ, Huang TX, Zhao B, Guo XD, Wang JF, Zhang LJ. Self-assembled pH-responsive MPEG-b-(PLA-co-PAE) block copolymer micelles for anticancer drug delivery. Biomaterials 2012; 33:6273-83. [DOI: 10.1016/j.biomaterials.2012.05.025] [Citation(s) in RCA: 194] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2012] [Accepted: 05/11/2012] [Indexed: 12/27/2022]
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Liu R, He B, Li D, Lai Y, Chang J, Tang JZ, Gu Z. Effects of pH-sensitive chain length on release of doxorubicin from mPEG-b-PH-b-PLLA nanoparticles. Int J Nanomedicine 2012; 7:4433-46. [PMID: 22923987 PMCID: PMC3423155 DOI: 10.2147/ijn.s32053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background Two methoxyl poly(ethylene glycol)-poly(L-histidine)-poly(L-lactide) (mPEG-PH-PLLA) triblock copolymers with different poly(L-histidine) chain lengths were synthesized. The morphology and biocompatibility of these self-assembled nanoparticles was investigated. Methods Doxorubicin, an antitumor drug, was trapped in the nanoparticles to explore their drug-release behavior. The drug-loaded nanoparticles were incubated with HepG2 cells to evaluate their antitumor efficacy in vitro. The effects of poly(L-histidine) chain length on the properties, drug-release behavior, and antitumor efficiency of the nanoparticles were investigated. Results The nanoparticles were pH-sensitive. The mean diameters of the two types of mPEG-PH- PLLA nanoparticle were less than 200 nm when the pH values were 5.0 and 7.4. The nanoparticles were nontoxic to NIH 3T3 fibroblasts and HepG2 cells. The release of doxorubicin at pH 5.0 was much faster than that at pH 7.4. The release rate of mPEG45-PH15-PLLA82 nanoparticles was much faster than that of mPEG45-PH30-PLLA82 nanoparticles at pH 5.0. Conclusion The inhibition effect of mPEG45-PH15-PLLA82 nanoparticles on the growth of HepG2 cells was greater than that of mPEG45-PH30-PLLA82 nanoparticles when the concentration of encapsulated doxorubicin was less than 15 μg/mL.
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Affiliation(s)
- Rong Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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Li D, Ding JX, Tang ZH, Sun H, Zhuang XL, Xu JZ, Chen XS. In vitro evaluation of anticancer nanomedicines based on doxorubicin and amphiphilic Y-shaped copolymers. Int J Nanomedicine 2012; 7:2687-97. [PMID: 22701317 PMCID: PMC3373295 DOI: 10.2147/ijn.s30687] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Four monomethoxy poly(ethylene glycol)-poly(L-lactide-co-glycolide)2 (mPEG-P( LA-co-GA)2) copolymers were synthesized by ring-opening polymerization of L-lactide and glycolide with double hydroxyl functionalized mPEG (mPEG-(OH)2) as macroinitiator and stannous octoate as catalyst. The copolymers self-assembled into nanoscale micellar/vesicular aggregations in phosphate buffer at pH 7.4. Doxorubicin (DOX), an anthracycline anticancer drug, was loaded into the micellar/vesicular nanoparticles, yielding micellar/vesicular nanomedicines. The in vitro release behaviors could be adjusted by content of hydrophobic polyester and pH of the release medium. In vitro cell experiments showed that the intracellular DOX release could be adjusted by content of P(LA-co-GA), and the nanomedicines displayed effective proliferation inhibition against Henrietta Lacks’s cells with different culture times. Hemolysis tests indicated that the copolymers were hemocompatible, and the presence of copolymers could reduce the hemolysis ratio of DOX significantly. These results suggested that the novel anticancer nanomedicines based on DOX and amphiphilic Y-shaped copolymers were attractive candidates as tumor tissular and intracellular targeting drug delivery systems in vivo, with enhanced stability during circulation and accelerated drug release at the target sites.
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Affiliation(s)
- Di Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
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