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Zhao M, Uzunoff A, Green M, Rakovich A. The Role of Stabilizing Copolymer in Determining the Physicochemical Properties of Conjugated Polymer Nanoparticles and Their Nanomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091543. [PMID: 37177088 PMCID: PMC10180373 DOI: 10.3390/nano13091543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/30/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
Conjugated polymer nanoparticles (CPNs) are a promising class of nanomaterials for biomedical applications, such as bioimaging, gene and drug delivery/release, photodynamic therapy (PDT), photothermal therapy (PTT), and environmental sensing. Over the past decade, many reports have been published detailing their synthesis and their various potential applications, including some very comprehensive reviews of these topics. In contrast, there is a distinct lack of overview of the role the stabilizing copolymer shells have on the properties of CPNs. This review attempts to correct this oversight by scrutinizing reports detailing the synthesis and application of CPNs stabilized with some commonly-used copolymers, namely F127 (Pluronic poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) diacrylate), PSMA (poly(styrene-co-maleic anhydride)), PLGA (poly(D, L-lactide-co-glycolide)) and PEG (polyethylene glycol) derivatives. The analysis of the reported physicochemical properties and biological applications of these CPNs provides insights into the advantages of each group of copolymers for specific applications and offers a set of guidance criteria for the selection of an appropriate copolymer when designing CPNs-based probes. Finally, the challenges and outlooks in the field are highlighted.
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Affiliation(s)
- Miao Zhao
- Physics Department, King's College London, London WC2R 2LS, UK
| | - Anton Uzunoff
- Physics Department, King's College London, London WC2R 2LS, UK
| | - Mark Green
- Physics Department, King's College London, London WC2R 2LS, UK
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2
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Wang Y, Liu L, Le Z, Tay A. Analysis of Nanomedicine Efficacy for Osteoarthritis. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202200085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Yuwen Wang
- Department of Biomedical Engineering National University of Singapore Singapore 117583 Singapore
| | - Ling Liu
- Institute of Health Innovation and Technology National University of Singapore Singapore 117599 Singapore
| | - Zhicheng Le
- Department of Biomedical Engineering National University of Singapore Singapore 117583 Singapore
| | - Andy Tay
- Department of Biomedical Engineering National University of Singapore Singapore 117583 Singapore
- Institute of Health Innovation and Technology National University of Singapore Singapore 117599 Singapore
- Tissue Engineering Programme National University of Singapore Singapore 117510 Singapore
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3
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Gu J, Gao B, Zafar H, Chu B, Feng X, Ni Y, Xu L, Bao R. Thermo-sensitive hydrogel combined with SHH expressed RMSCs for rat spinal cord regeneration. Front Bioeng Biotechnol 2022; 10:1001396. [PMID: 36338109 PMCID: PMC9634076 DOI: 10.3389/fbioe.2022.1001396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/10/2022] [Indexed: 12/04/2022] Open
Abstract
Purpose: Spinal cord injury (SCI) has a damaging impact on patients, amid being a worldwide problem with no effective treatment. Herein, we reported a method for functional therapy of SCI in rats, wherein we combined thermo-sensitive hydrogel with Sonic Hedgehog (SHH) expressed in rat bone-marrow derived mesenchymal stem cells (RMSCs). Methods: Bone marrow-derived mesenchymal stem cells (BMSCs) were isolated from Sprague-Dawley (SD) female rats. The SHH was optimized and transferred into RMSCs via cationic liposomes, while thermo-sensitive hydrogel was reformed with hyaluronate (HA) and Pluronic F127. Then, a rat model with SCI was established accordingly by male SD rats and randomized into sham, model, RMSCs with hydrogel and SHH-RMSCs with hydrogel. The evaluation of SCI repair based on Basso, Beattie Bresnahanlocomotor rating scale (BBB scale) and inclined plate score. Immunofluorescence, immunohistochemistry and hematoxylin-eosin were utilized to explore the expression of protein (GFAP, GAP43, NF200 and MBP) and histopathology. Results: It was demonstrated that transfection of SHH with cationic liposomes exhibited more effect in RMSCs than lipofectamine 2000. As shown in SEM, 3.5% HA-F127 demonstrated porous structure. In the MTT and dead/live assay, 3.5% HA-F127 showed good biocompatibility for RMSCs. Both RMSCs and SHH-RMSCs groups could significantly promote BBB and inclined plate scores (p < 0.01) compared with the model. Furthermore, the SHH-RMSC group was significantly improved than RMSC with the expression of related proteins, where NF200, MBP, and GAP43 were principally enhanced with the GFAP expression being virtually down-regulated. Conclusion: All in all, the results suggested that transplantation of RMSCs with SHH could improve the function of SCI and promote nerve regeneration.
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Affiliation(s)
- Jun Gu
- School of Medicine, Yangzhou University, Yangzhou, China
- Department of Orthopedics, Xishan People’s Hospital, Wuxi, China
- *Correspondence: Jun Gu, ; Hajra Zafar,
| | - Biao Gao
- School of Medicine, Yangzhou University, Yangzhou, China
- Wuxi Xishan District Ehu Town Health Center, Wuxi, China
| | - Hajra Zafar
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Jun Gu, ; Hajra Zafar,
| | - Bo Chu
- Department of Orthopedics, Xishan People’s Hospital, Wuxi, China
| | - Xiaojun Feng
- Department of Orthopedics, Xishan People’s Hospital, Wuxi, China
| | - Yinjie Ni
- Department of Orthopedics, Xishan People’s Hospital, Wuxi, China
| | - Lin Xu
- Department of Orthopedics, Xishan People’s Hospital, Wuxi, China
| | - Rui Bao
- Department of Pharmaceutics, School of Pharmacy, Jiangsu University, Zhenjiang, China
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4
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Zeng Z, Gao H, Chen C, Xiao L, Zhang K. Bioresponsive Nanomaterials: Recent Advances in Cancer Multimodal Imaging and Imaging-Guided Therapy. Front Chem 2022; 10:881812. [PMID: 35372260 PMCID: PMC8971282 DOI: 10.3389/fchem.2022.881812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/04/2022] [Indexed: 12/18/2022] Open
Abstract
Cancer is a serious health problem which increasingly causes morbidity and mortality worldwide. It causes abnormal and uncontrolled cell division. Traditional cancer treatments include surgery, chemotherapy, radiotherapy and so on. These traditional therapies suffer from high toxicity and arouse safety concern in normal area and have difficulty in accurately targeting tumour. Recently, a variety of nanomaterials could be used for cancer diagnosis and therapy. Nanomaterials have several advantages, e.g., high concentration in tumour via targeting design, reduced toxicity in normal area and controlled drug release after various rational designs. They can combine with many types of biomaterials in order to improve biocompatibility. In this review, we outlined the latest research on the use of bioresponsive nanomaterials for various cancer imaging modalities (magnetic resonance imaging, positron emission tomography and phototacoustic imaging) and imaging-guided therapy means (chemotherapy, radiotherapy, photothermal therapy and photodynamic therapy), followed by discussing the challenges and future perspectives of this bioresponsive nanomaterials in biomedicine.
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Affiliation(s)
- Zeng Zeng
- Orthopedic Surgery Department, Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Cancer Center, Department of Ultrasound Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Huali Gao
- Orthopedic Surgery Department, Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - CongXian Chen
- Cancer Center, Department of Ultrasound Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Lianbo Xiao
- Orthopedic Surgery Department, Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Lianbo Xiao, ; Kun Zhang,
| | - Kun Zhang
- Central Laboratory, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Lianbo Xiao, ; Kun Zhang,
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5
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Abuwatfa WH, Awad NS, Pitt WG, Husseini GA. Thermosensitive Polymers and Thermo-Responsive Liposomal Drug Delivery Systems. Polymers (Basel) 2022; 14:polym14050925. [PMID: 35267747 PMCID: PMC8912701 DOI: 10.3390/polym14050925] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 12/13/2022] Open
Abstract
Temperature excursions within a biological milieu can be effectively used to induce drug release from thermosensitive drug-encapsulating nanoparticles. Oncological hyperthermia is of particular interest, as it is proven to synergistically act to arrest tumor growth when combined with optimally-designed smart drug delivery systems (DDSs). Thermoresponsive DDSs aid in making the drugs more bioavailable, enhance the therapeutic index and pharmacokinetic trends, and provide the spatial placement and temporal delivery of the drug into localized anatomical sites. This paper reviews the fundamentals of thermosensitive polymers, with a particular focus on thermoresponsive liposomal-based drug delivery systems.
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Affiliation(s)
- Waad H. Abuwatfa
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (W.H.A.); (N.S.A.)
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
| | - Nahid S. Awad
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (W.H.A.); (N.S.A.)
| | - William G. Pitt
- Chemical Engineering Department, Brigham Young University, Provo, UT 84602, USA;
| | - Ghaleb A. Husseini
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (W.H.A.); (N.S.A.)
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
- Correspondence: ; Tel.: +971-6-515-2970
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Ashique S, Sandhu NK, Chawla V, Chawla PA. Targeted Drug Delivery: Trends and Perspectives. Curr Drug Deliv 2021; 18:1435-1455. [PMID: 34151759 DOI: 10.2174/1567201818666210609161301] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/03/2021] [Accepted: 04/07/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Due to various limitations in conventional drug delivery system, it is important to focus on the target-specific drug delivery system where we can deliver the drug without any degradation. Among various challenges faced by a formulation scientist, delivering the drug to its right site, in its right dose, is also an important aim. A focused drug transport aims to extend, localize, target and have a safe drug interaction with the diseased tissue. OBJECTIVE The aim of targeted drug delivery is to make the required amount of the drug available at its desired site of action. Drug targeting can be accomplished in a number ways that include enzyme mediation, pH-dependent release, use of special vehicles, receptor targeting among other mechanisms. Intelligently designed targeted drug delivery systems also offer the advantages of a low dose of the drug along with reduced side effects which ultimately improves patient compliance. Incidences of dose dumping and dosage form failure are negligible. A focused drug transport aims to have a safe drug interaction with the diseased tissue. CONCLUSION This review focuses on the available targeting techniques for delivery to the colon, brain and other sites of interest. Overall, the article should make an excellent read for the researchers in this area. Newer drug targets may be identified and exploited for successful drug targeting.
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Affiliation(s)
- Sumel Ashique
- Department of Pharmaceutics, ISF College of Pharmacy, Moga-142001, Punjab, India
| | - Navjot Kaur Sandhu
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga-142001, Punjab, India
| | - Viney Chawla
- University Institute of Pharmaceutical Sciences and Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Pooja A Chawla
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga-142001, Punjab, India
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Carniel TK, Fagundes P, Vivan AC, Silva LL, Zanetti M, Dalcanton F, de Mello JMM, Fiori MA. Application of the polycaprolactone polymer for the encapsulation of geraniol: evaluation of the efficiency and stability. JOURNAL OF POLYMER ENGINEERING 2021. [DOI: 10.1515/polyeng-2021-0026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Geraniol has been an attractive compound for food preservation due to its antibacterial and antifungal actions. The main objective of this study was to produce and characterize polycaprolactone (PCL) capsules for the protection of the encapsulated geraniol essential oil. The encapsulation was carried out using a miniemulsion polymerization technique with an efficiency of (95.44 ± 0.60%). The capsules were obtained with a mean size of 148 nm and with a polydispersity index of 0.12. Transmission electron microscopy results confirmed the formation of spherical capsules of PCL coating the geraniol. From the analysis of thermogravimetry, it was possible to prove the thermal protection of geraniol by PCL coating since the release of the encapsulated geraniol occurred with temperatures 100 °C higher than the volatilization temperature of the natural compound. An important observation was that the microcapsules of PCL-geraniol immersed in aqueous suspensions at 4 °C showed good stability over 60 days.
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Affiliation(s)
- Thaís Karoline Carniel
- Post-Graduate Program in Technology and Innovation Management , Community University of the Chapecó Regions (Unochapecó) , Chapecó , 89809-000 SC , Brazil
| | - Pâmela Fagundes
- Post-Graduate Program in Technology and Innovation Management , Community University of the Chapecó Regions (Unochapecó) , Chapecó , 89809-000 SC , Brazil
| | - Ana Carolina Vivan
- Department of Food Engineering , Community University of the Chapecó Regions (Unochapecó) , Chapecó 89809-000 , SC , Brazil
| | - Luciano Luiz Silva
- Post-Graduate Program in Technology and Innovation Management , Community University of the Chapecó Regions (Unochapecó) , Chapecó , 89809-000 SC , Brazil
| | - Micheli Zanetti
- Post-Graduate Program in Technology and Innovation Management , Community University of the Chapecó Regions (Unochapecó) , Chapecó , 89809-000 SC , Brazil
- Department of Food Engineering , Community University of the Chapecó Regions (Unochapecó) , Chapecó 89809-000 , SC , Brazil
| | - Francieli Dalcanton
- Post-Graduate Program in Technology and Innovation Management , Community University of the Chapecó Regions (Unochapecó) , Chapecó , 89809-000 SC , Brazil
| | - Josiane Maria Muneron de Mello
- Post-Graduate Program in Technology and Innovation Management , Community University of the Chapecó Regions (Unochapecó) , Chapecó , 89809-000 SC , Brazil
- Post-Graduate Program in Environmental Sciences , Community University of the Chapecó Regions (Unochapecó) , Chapecó 89809-000 , SC , Brazil
| | - Márcio Antônio Fiori
- Post-Graduate Program in Technology and Innovation Management , Community University of the Chapecó Regions (Unochapecó) , Chapecó , 89809-000 SC , Brazil
- Post-Graduate Program in Environmental Sciences , Community University of the Chapecó Regions (Unochapecó) , Chapecó 89809-000 , SC , Brazil
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8
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Yang QQ, Sui Z, Lu W, Corke H. Soybean lecithin-stabilized oil-in-water (O/W) emulsions increase the stability and in vitro bioaccessibility of bioactive nutrients. Food Chem 2021; 338:128071. [PMID: 33092005 DOI: 10.1016/j.foodchem.2020.128071] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/19/2020] [Accepted: 09/09/2020] [Indexed: 02/07/2023]
Abstract
This study was proposed to investigate the possibility of co-delivering essential oils and lipophilic nutrients via lecithin stabilized emulsions. Emulsions with different droplet sizes (62.5-105 nm), zeta potentials (-33.7 to -58.6 mV), and PdI values (0.155-0.275) were successfully prepared. Incorporation of curcumin into emulsions significantly improved its water solubility (1700-fold), thermal and photochemical stability. The droplet size of curcumin-loaded emulsions did not change over 30 days of storage at 4 °C. Gastrointestinal tract (GIT) digestion caused significant changes in the droplet size and interfacial properties of curcumin-loaded emulsions. The bioaccessibility of encapsulated curcumin was 4.79-10.6-fold higher than that of free molecule. This is mainly attributed to the different solubility of curcumin in essential oils, which also showed different bioaccessibility. The findings suggested that emulsions can be novel carriers for co-delivering essential oils and lipophilic nutrients with increased stability and bioaccessibility.
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Affiliation(s)
- Qiong-Qiong Yang
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhongquan Sui
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wei Lu
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Harold Corke
- Department of Biotechnology and Food Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China; Faculty of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
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Gao M, Long X, Du J, Teng M, Zhang W, Wang Y, Wang X, Wang Z, Zhang P, Li J. Enhanced curcumin solubility and antibacterial activity by encapsulation in PLGA oily core nanocapsules. Food Funct 2020; 11:448-455. [PMID: 31829367 DOI: 10.1039/c9fo00901a] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Infections caused by bacteria represent an emerging public health threat due to the development of antibiotic resistance in bacteria. Curcumin (CUR), a naturally derived substance, is found to be effective against several bacteria. However, its use is limited by its low water solubility and rapid degradation profile. Polymeric nanocapsules (NCs) represent an interesting drug delivery system with high incorporation rates due to their liquid core. The present study aimed to develop poly-(lactic-co-glycolic acid) (PLGA) NCs for the delivery of CUR for enhancing its solubility and antibacterial activity. The particle size, polydispersity index (PDI), zeta potential and drug entrapment efficiency of CUR NCs with optimal formulation were 158 nm, 0.156, -29.1 mV and 92.64%, respectively. The water solubility of CUR in NCs increased about 1500 fold compared to that of free CUR. TEM and AFM images proved the core-shell structure of PLGA NCs with narrow size distributions. The in vitro release profile of CUR from PLGA NCs showed a burst release in the initial 24 h followed by a sustained release of the interior CUR over 10 days. In vitro antibacterial experiments demonstrate that the minimum inhibitory concentrations (MICs) of CUR NCs were lower than those of free CUR for all different bacterial strains, especially for Gram-negative bacteria. CUR NCs exhibited broad-spectrum antibacterial effects compared with free CUR. These data suggest that these CUR-loaded PLGA NCs may provide a promising strategy as novel antibacterial agents.
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Affiliation(s)
- Mengqian Gao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.
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Deng S, Gigliobianco MR, Censi R, Di Martino P. Polymeric Nanocapsules as Nanotechnological Alternative for Drug Delivery System: Current Status, Challenges and Opportunities. NANOMATERIALS 2020; 10:nano10050847. [PMID: 32354008 PMCID: PMC7711922 DOI: 10.3390/nano10050847] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 12/11/2022]
Abstract
Polymer-based nanocapsules have been widely studied as a potential drug delivery system in recent years. Nanocapsules-as one of kind nanoparticle-provide a unique nanostructure, consisting of a liquid/solid core with a polymeric shell. This is of increasing interest in drug delivery applications. In this review, nanocapsules delivery systems studied in last decade are reviewed, along with nanocapsule formulation, characterizations of physical/chemical/biologic properties and applications. Furthermore, the challenges and opportunities of nanocapsules applications are also proposed.
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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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12
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Angayarkanni SA, Kampf N, Klein J. Surface Interactions between Boundary Layers of Poly(ethylene oxide)-Liposome Complexes: Lubrication, Bridging, and Selective Ligation †. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15469-15480. [PMID: 31348857 DOI: 10.1021/acs.langmuir.9b01708] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Poly(ethylene oxide), PEO, is widely exploited in biomedical applications, while phosphatidylcholine (PC) lipids (in the form of bilayers or liposomes) have been identified as very efficient boundary lubricants in aqueous media. Here we examine, using a surface force balance (SFB), the interactions between surface-adsorbed layers of PEO complexed with small unilamellar vesicles (SUVs, i.e. liposomes) or with bilayers of PC lipids, both well below and a little above their main gel-to-liquid phase-transition temperatures TM. The morphology of PEO layers (adsorbed onto mica), to which liposomes were added, was examined using atomic force microscopy (AFM) and cryo-scanning electron microscopy (cryo-SEM). Our results reveal that the PC lipids could attach to the PEO either as vesicles or as bilayers, depending on whether they were above or below TM. Under water (no added salt), excellent lubrication, with friction coefficients down to 10-3-10-4, up to contact stresses of 6.5 MPa (comparable to those in the major joints) was observed between two surfaces bearing such PEO-PC complexes. At 0.1 M KNO3 salt concentration (comparable to physiological salt levels), the friction between such surfaces was considerably higher, attributed to bridging by the polymer chains. Remarkably, such bridging could be suppressed and the friction could be restored to its previous low value if the KNO3 was replaced with NaNO3, as a result of the different PEO-mica ligation properties of Na+ compared to those of K+. Our results provide insight into the properties of PEO-PC complexes in potential applications, and large interfacial effects that can result from the seemingly innocuous replacement of K+ by Na+ ions.
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Affiliation(s)
- S A Angayarkanni
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
| | - Nir Kampf
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
| | - Jacob Klein
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
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13
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Chen YP, Zhang JL, Zou Y, Wu YL. Recent Advances on Polymeric Beads or Hydrogels as Embolization Agents for Improved Transcatheter Arterial Chemoembolization (TACE). Front Chem 2019; 7:408. [PMID: 31231636 PMCID: PMC6560223 DOI: 10.3389/fchem.2019.00408] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 05/20/2019] [Indexed: 12/17/2022] Open
Abstract
Transcatheter arterial chemoembolization (TACE), aiming to block the hepatic artery for inhibiting tumor blood supply, became a popular therapy for hepatocellular carcinoma (HCC) patients. Traditional TACE formulation of anticancer drug emulsion in ethiodized oil (i.e., Lipiodol®) and gelatin sponge (i.e., Gelfoam®) had drawbacks on patient tolerance and resulted in undesired systemic toxicity, which were both significantly improved by polymeric beads, microparticles, or hydrogels by taking advantage of the elegant design of biocompatible or biodegradable polymers, especially amphiphilic polymers or polymers with both hydrophilic and hydrophobic chains, which could self-assemble into proposed microspheres or hydrogels. In this review, we aimed to summarize recent advances on polymeric embolization beads or hydrogels as TACE agents, with emphasis on their material basis of polymer architectures, which are important but have not yet been comprehensively summarized.
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Affiliation(s)
- Yun-Ping Chen
- Department of Oncology, The 910 Hospital of PLA, Quanzhou, China
| | - Jiang-Ling Zhang
- Department of Oncology, The 910 Hospital of PLA, Quanzhou, China
| | - Yanhong Zou
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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Jiang Z, Guan J, Qian J, Zhan C. Peptide ligand-mediated targeted drug delivery of nanomedicines. Biomater Sci 2019; 7:461-471. [PMID: 30656305 DOI: 10.1039/c8bm01340c] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Targeted drug delivery is emerging as a promising strategy to achieve better clinical outcomes. Actively targeted drug delivery that utilizes overexpressed receptors or antigens on diseased tissues is receiving increasing scrutiny, especially due to the uncertainty of existence of the enhanced permeability and retention (EPR) effect in cancer patients. Peptide ligands are advantageous over other classes of targeting ligands due to their accessibility of high-throughput screening, ease of synthesis, high specificity and affinity, etc. In this review, we briefly summarize the resources of peptide ligands and discuss the pitfalls and perspectives of peptide ligand-mediated targeted delivery of nanomedicines.
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Affiliation(s)
- Zhuxuan Jiang
- Department of Pharmacology, School of Basic Medical Sciences & State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200032, P.R. China.
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Yi Q, Ma J, Kang K, Gu Z. Bioreducible nanocapsules for folic acid-assisted targeting and effective tumor-specific chemotherapy. Int J Nanomedicine 2018; 13:653-667. [PMID: 29440892 PMCID: PMC5798557 DOI: 10.2147/ijn.s149458] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION Increasing demands in precise control over delivery and functionalization of therapeutic agents for tumor-specific chemotherapy have led to a rapid development in nanocarriers. Herein, we report a nanocapsule (NC) system for tumor-oriented drug delivery and effective tumor therapy. MATERIALS AND METHODS Functionalized hyaluronan is utilized to build up the NC shells, in which bioreduction cleavable sites, targeting ligand folic acid (FA), and zwitterionic tentacles are integrated. RESULTS The hollow NCs obtained (~50 nm in diameter) showed well-defined spherical shell structures with a shell thickness of ~8 nm. These specially designed NCs (doxorubicin [DOX]/FA-Z-NCs) with high drug encapsulation content exhibited good biocompatibility in vitro and fast intracellular drug release behavior mediated by intracellular glutathione. CONCLUSION Cellular uptake tests demonstrated rapid uptake of these functionalized NCs and effective escape from endosomes. Antitumor efficacy of the DOX/FA-Z-NCs was confirmed by the significant tumor growth inhibition effect as well as greatly reduced side effects, in contrast with those of the free drug DOX hydrochloride.
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Affiliation(s)
- Qiangying Yi
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu
| | - Jin Ma
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu
| | - Ke Kang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, P.R. China
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Martins E, Poncelet D, Rodrigues RC, Renard D. Oil encapsulation techniques using alginate as encapsulating agent: applications and drawbacks. J Microencapsul 2017; 34:754-771. [DOI: 10.1080/02652048.2017.1403495] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | - Denis Poncelet
- Process Engineering for Environment and Food Laboratory, ONIRIS, Nantes, France
| | | | - Denis Renard
- INRA UR 1268 Biopolymères Interactions Assemblages, France, Nantes
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Le Kim TH, Yu JH, Jun H, Yang MY, Yang MJ, Cho JW, Kim JW, Kim JS, Nam YS. Polyglycerolated nanocarriers with increased ligand multivalency for enhanced in vivo therapeutic efficacy of paclitaxel. Biomaterials 2017; 145:223-232. [DOI: 10.1016/j.biomaterials.2017.08.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/08/2017] [Accepted: 08/28/2017] [Indexed: 12/15/2022]
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Le Kim TH, Jun H, Kim JH, Park K, Kim JS, Nam YS. Lipiodol nanoemulsions stabilized with polyglycerol-polycaprolactone block copolymers for theranostic applications. Biomater Res 2017; 21:21. [PMID: 29075510 PMCID: PMC5645845 DOI: 10.1186/s40824-017-0108-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/11/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Polyglycerol is an attractive hydrophilic building block of amphiphilic copolymers for biomedical and pharmaceutical applications due to its biocompatibility, facile chemical modification, and anti-fouling activity. Herein we introduce theranostic nanoemulsions incorporating anti-cancer therapeutic and contrast agents using linear polyglycerol-poly(ε-caprolactone) diblock copolymers (PG-b-PCL). Lipiodol is used as a core oil that dissolves paclitaxel and serves as a contrast agent for computer tomography (CT). METHODS PG-b-PCL is synthesized by three-step processes: polymerization of ethoxyethyl glycerol ether; ring-opening polymerization of ε-caprolactone; and deprotection of the PEEGE block. In vitro cytotoxicity of the polyglycerolated lipiodol nanoemulsions is demonstrated using HeLa ovarian cancer cells. The applicability of the prepared nanoemulsions as a contrast agent for CT imaging is also evaluated using micro-CT. RESULTS Three compositions of PG-b-PCL with different block lengths are synthesized to prepare nanoemulsions. The polyglycerolated lipiodol nanoemulsions exhibit excellent anti-cancer activities, while placebo nanoemulsions have no significant cytotoxicity under the same condition. Micro-CT imaging of the nanoemulsions confirms the ability of nanoemulsions as a contrast agent. CONCLUSIONS This study suggests that PG-b-PCL is a promising polymeric emulsifier for effective stabilization and surface functionalization of drug delivery nanocarriers for therapeutic and imaging agents.
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Affiliation(s)
- Trang Huyen Le Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
| | - Hwiseok Jun
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
| | - Jin Ho Kim
- Samsung Medical Center, Samsung Biomedical Research Institute, Irwon-dong, Gangnam-gu, Seoul, 06351 Republic of Korea
| | - Keunchil Park
- Samsung Biomedical Research Institute and Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Irwon-dong, Gangnam-gu, Seoul, 06351 Republic of Korea
| | - Jee Seon Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
| | - Yoon Sung Nam
- Department of Materials Science and Engineering and KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
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Kang ML, Kim JE, Im GI. Thermoresponsive nanospheres with independent dual drug release profiles for the treatment of osteoarthritis. Acta Biomater 2016; 39:65-78. [PMID: 27155347 DOI: 10.1016/j.actbio.2016.05.005] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 04/26/2016] [Accepted: 05/03/2016] [Indexed: 11/18/2022]
Abstract
UNLABELLED Dual drug delivery of drugs with different therapeutic effects in a single system is an effective way to treat a disease. One of the main challenges in dual drug delivery is to control the release behavior of each drug independently. In this study, we devised thermo-responsive polymeric nanospheres that can provide simultaneous and independent dual drug delivery in the response to temperature change. The nanospheres based on chitosan oligosaccharide conjugated pluronic F127 grafting carboxyl group were synthesized to deliver kartogenin (KGN) and diclofenac (DCF) in a single system. To achieve the dual drug release, KGN was covalently cross-linked to the outer part of the nanosphere, and DCF was loaded into the inner core of the nanosphere. The nanospheres demonstrated immediate release of DCF and sustained release of KGN, which were independently controlled by temperature change. The nanospheres treated with cold temperature effectively suppressed lipopolysaccharide-induced inflammation in chondrocytes and macrophage-like cells. The nanospheres also induced chondrogenic differentiation of mesenchymal stem cells, which was further enhanced by cold shock treatment. Bioluminescence of the fluorescence-labeled nanospheres was significantly increased after cold treatment in vivo. The nanospheres suppressed the progression of osteoarthritis in treated rats, which was further enhanced by cold treatment. The nanospheres also reduced cyclooxygenase-2 expression in the serum and synovial membrane of treated rats, which were further decreased with cold treatment. These results suggest that the thermo-responsive nanospheres provide dual-function therapeutics possessing anti-inflammatory and chondroprotective effects which can be enhanced by cold treatment. STATEMENT OF SIGNIFICANCE We developed thermo-responsive nanospheres that can provide a useful dual-function of suppressing the inflammation and promoting chondrogenesis in the treatment of osteoarthritis. For a dual delivery system to be effective, the release behavior of each drug should be independently controlled to optimize their desired therapeutic effects. We employed rapid release of diclofenac for acute anti-inflammatory effects, and sustained release of kartogenin, a newly found molecule, for chondrogenic effects in this polymeric nanospheres. This nanosphere demonstrated immediate release of diclofenac and sustained release of kartogenin, which were independently controlled by temperature change. The effectiveness of this system to subside inflammation and regenerate cartilage in osteoarthritis was successful demonstrated through in vitro and in vivo experiments in this study. We think that this study will add a new concept to current body of knowledge in the field of drug delivery and treatment of osteoarthritis.
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Affiliation(s)
- Mi-Lan Kang
- Department of Orthopedics, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Ji-Eun Kim
- Department of Orthopedics, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Gun-Il Im
- Department of Orthopedics, Dongguk University Ilsan Hospital, Goyang, Republic of Korea.
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Fan R, Li X, Deng J, Gao X, Zhou L, Zheng Y, Tong A, Zhang X, You C, Guo G. Dual Drug Loaded Biodegradable Nanofibrous Microsphere for Improving Anti-Colon Cancer Activity. Sci Rep 2016; 6:28373. [PMID: 27324595 PMCID: PMC4914940 DOI: 10.1038/srep28373] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 06/03/2016] [Indexed: 02/05/2023] Open
Abstract
One of the approaches being explored to increase antitumor activity of chemotherapeutics is to inject drug-loaded microspheres locally to specific anatomic sites, providing for a slow, long term release of a chemotherapeutic while minimizing systemic exposure. However, the used clinically drug carriers available at present have limitations, such as their low stability, renal clearance and residual surfactant. Here, we report docetaxel (DOC) and curcumin (CUR) loaded nanofibrous microspheres (DOC + CUR/nanofibrous microspheres), self-assembled from biodegradable PLA-PEO-PPO-PEO-PLA polymers as an injectable drug carrier without adding surfactant during the emulsification process. The obtained nanofibrous microspheres are composed entirely of nanofibers and have an open hole on the shell without the assistance of a template. It was shown that these DOC + CUR/nanofibrous microspheres could release curcumin and docetaxel slowly in vitro. The slow, sustained release of curcumin and docetaxel in vivo may help maintain local concentrations of active drug. The mechanism by which DOC + CUR/nanofibrous microspheres inhibit colorectal peritoneal carcinomatosis might involve increased induction of apoptosis in tumor cells and inhibition of tumor angiogenesis. In vitro and in vivo evaluations demonstrated efficacious synergistic antitumor effects against CT26 of curcumin and docetaxel combined nanofibrous microspheres. In conclusion, the dual drug loaded nanofibrous microspheres were considered potentially useful for treating abdominal metastases of colorectal cancer.
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Affiliation(s)
- Rangrang Fan
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Xiaoling Li
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Jiaojiao Deng
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Xiang Gao
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Liangxue Zhou
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Yu Zheng
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Xiaoning Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, and Collaborative Innovation Center for Biotherapy, Beijing 100084, P. R. China
| | - Chao You
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
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Rodríguez J, Martín MJ, Ruiz MA, Clares B. Current encapsulation strategies for bioactive oils: From alimentary to pharmaceutical perspectives. Food Res Int 2016. [DOI: 10.1016/j.foodres.2016.01.032] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Molecular interactions between PEO–PPO–PEO and PPO–PEO–PPO triblock copolymers in aqueous solution. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.08.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Liu S, Bao H, Li L. Role of PPO–PEO–PPO triblock copolymers in phase transitions of a PEO–PPO–PEO triblock copolymer in aqueous solution. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.08.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Huang X, Zhang Y, Yin G, Pu X, Liao X, Huang Z, Chen X, Yao Y. Tumor-targeted paclitaxel-loaded folate conjugated poly(ethylene glycol)-poly(L-lactide) microparticles produced by supercritical fluid technology. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:95. [PMID: 25649516 DOI: 10.1007/s10856-015-5447-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 12/24/2014] [Indexed: 06/04/2023]
Abstract
The new biodegradable diblock copolymers poly(ethylene glycol)-poly(L-lactide) (PEG-PLLA) were synthesized and were chemically conjugated with folate (FA) in the PEG terminal ends to form FA-PEG-PLLA. Then the hydrophobic drug paclitaxel (PTX) loaded microparticles (PTX/FA-PEG-PLLA) were produced via solution enhanced dispersion by supercritical fluids (SEDS). These microparticles exhibited sphere-like shape by scanning electron microscopy observation and showed narrow hydrodynamic size distributions by dynamic light scattering measurement. Drug loading of PTX loaded microparticles was about 7-9% and the encapsulation efficiency of PTX loaded microparticles was about 18-23%. Flow cytometry and confocal laser scanning microscope analyses revealed that fluorescein isothiocyanate labeled FA conjugated microparticles presented significantly higher cellular uptake than FA-free group due to the FA-receptor-mediated endocytosis. In vitro cytotoxicity evaluation indicated that FA-PEG-PLLA expressed negligible cytotoxicity to mouse fibroblasts L929 cells. Moreover, PTX/FA-PEG-PLLA microparticles exhibited much higher anti-cancer efficacy than PTX/PEG-PLLA microparticles against human ovarian cancer SKOV3 cells. Nude mice xenografted with SKOV3 cells were used in biodistribution studies, the results indicated that an increased amount of PTX was accumulated in the tumor tissue deal with PTX/FA-PEG-PLLA microparticles. These results collectively suggested that PTX/FA-PEG-PLLA microparticles prepared by SEDS would have potential in anti-tumor applications as a tumor-targeted drug delivery formulation.
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Affiliation(s)
- Xiaobei Huang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
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26
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Lee JY, Kim JH, Bae KH, Oh MH, Kim Y, Kim JS, Park TG, Park K, Lee JH, Nam YS. Low-density lipoprotein-mimicking nanoparticles for tumor-targeted theranostic applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:222-231. [PMID: 25137631 DOI: 10.1002/smll.201303277] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 07/06/2014] [Indexed: 06/03/2023]
Abstract
This study introduces multifunctional lipid nanoparticles (LNPs), mimicking the structure and compositions of low-density lipoproteins, for the tumor-targeted co-delivery of anti-cancer drugs and superparamagnetic nanocrystals. Paclitaxel (4.7 wt%) and iron oxide nanocrystals (6.8 wt%, 11 nm in diameter) are co-encapsulated within folate-functionalized LNPs, which contain a cluster of nanocrystals with an overall diameter of about 170 nm and a zeta potential of about -40 mV. The folate-functionalized LNPs enable the targeted detection of MCF-7, human breast adenocarcinoma expressing folate receptors, in T2 -weighted magnetic resonance images as well as the efficient intracellular delivery of paclitaxel. Paclitaxel-free LNPs show no significant cytotoxicity up to 0.2 mg mL(-1) , indicating the excellent biocompatibility of the LNPs for intracellular drug delivery applications. The targeted anti-tumor activities of the LNPs in a mouse tumor model suggest that the low-density lipoprotein-mimetic LNPs can be an effective theranostic platform with excellent biocompatibility for the tumor-targeted co-delivery of various anti-cancer agents.
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Affiliation(s)
- Jeong Yu Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseung-gu, Daejeon, 305-701, Republic of Korea
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Cytotoxicity and internalization of Pluronic micelles stabilized by core cross-linking. J Control Release 2014; 196:87-95. [DOI: 10.1016/j.jconrel.2014.10.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/27/2014] [Accepted: 10/01/2014] [Indexed: 02/02/2023]
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28
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Zhong Y, Meng F, Deng C, Zhong Z. Ligand-Directed Active Tumor-Targeting Polymeric Nanoparticles for Cancer Chemotherapy. Biomacromolecules 2014; 15:1955-69. [DOI: 10.1021/bm5003009] [Citation(s) in RCA: 388] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yinan Zhong
- Biomedical Polymers Laboratory,
and Jiangsu Key Laboratory of Advanced Functional Polymer Design and
Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou, 215123, People’s Republic of China
| | - Fenghua Meng
- Biomedical Polymers Laboratory,
and Jiangsu Key Laboratory of Advanced Functional Polymer Design and
Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou, 215123, People’s Republic of China
| | - Chao Deng
- Biomedical Polymers Laboratory,
and Jiangsu Key Laboratory of Advanced Functional Polymer Design and
Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou, 215123, People’s Republic of China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory,
and Jiangsu Key Laboratory of Advanced Functional Polymer Design and
Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou, 215123, People’s Republic of China
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Ye X, Zhang J, Chen H, Wang X, Huang F. Fluorescent nanomicelles for selective detection of Sudan dye in Pluronic F127 aqueous media. ACS APPLIED MATERIALS & INTERFACES 2014; 6:5113-5121. [PMID: 24625370 DOI: 10.1021/am500270a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Novel self-assembled water-soluble nanomicelles that contain fluorescent conjugated polymers (poly(9,9-dioctylfluorene) (PFO) or poly[2,7-(9,9-dihexylfluorene)-alt-4,4'-phenylether] (PF-PE)) have been obtained and used as the highly sensitive/selective platform for Sudan dye detection. The Fluorescent nanomicelles exhibited a highly selective fluorescence quenching by the prohibited food additive Sudan I, while not for the natural pigments: Capsanthin and Beta-carotene, due to the more suitable matching of the LUMOs (lowest unoccupied molecular orbital) of the conjugated polymers with that of Sudan I molecules. The Stern-Volmer constants (K(SV)) of PF-PE/F127 and PFO/F127 for Sudan I were 1,040,480 and 665,000 M(-1), respectively, which were more than 100 times higher than those of the same conjugated polymers in the orgainc solvents. The significantly enhanced sensitivity was due to the collective effect of the F127 micelles to both chromophore and analyte, through which the fluorophone-analyte binding interaction is significantly strengthened and efficient photoinduced charge transfer occurs. The as-proposed materials and approach may be potentially applied in the real-time food safety screening.
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Affiliation(s)
- Xinliang Ye
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, and ‡State Key Laboratory of Pulp & Paper Engineering, School of Light Industry and Food Science, South China University of Technology , Guangzhou 510640, P. R. China
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Zeng Z, Peng Z, Chen L, Chen Y. Facile fabrication of thermally responsive Pluronic F127-based nanocapsules for controlled release of doxorubicin hydrochloride. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3183-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Torcello-Gómez A, Wulff-Pérez M, Gálvez-Ruiz MJ, Martín-Rodríguez A, Cabrerizo-Vílchez M, Maldonado-Valderrama J. Block copolymers at interfaces: interactions with physiological media. Adv Colloid Interface Sci 2014; 206:414-27. [PMID: 24268588 DOI: 10.1016/j.cis.2013.10.027] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 10/23/2013] [Accepted: 10/23/2013] [Indexed: 12/20/2022]
Abstract
Triblock copolymers (also known as Pluronics or poloxamers) are biocompatible molecules composed of hydrophobic and hydrophilic blocks with different lengths. They have received much attention recently owing to their applicability for targeted delivery of hydrophobic compounds. Their unique molecular structure facilitates the formation of dynamic aggregates which are able to transport lipid soluble compounds. However, these structures can be unstable and tend to solubilize within the blood stream. The use of nanoemulsions as carriers for the lipid soluble compounds appears as a new alternative with improved protection against physiological media. The interfacial behavior of block copolymers is directly related to their peculiar molecular structure and further knowledge could provide a rational use in the design of poloxamer-stabilized nanoemulsions. This review aims to combine the new insights gained recently into the interfacial properties of block copolymers and their performance in nanoemulsions. Direct studies dealing with the interactions with physiological media are also reviewed in order to address issues relating metabolism degradation profiles. A better understanding of the physico-chemical and interfacial properties of block copolymers will allow their manipulation to modulate lipolysis, hence allowing the rational design of nanocarriers with efficient controlled release.
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Patel P, Panchal H. In silico Structure Modeling and Comparative Analysis of Characterization Properties of Protein Polymers Useful for Protein-Based Nano Particulate Drug Delivery Systems (NPDDS): A Bioinformatics Approach. Int J Pept Res Ther 2013. [DOI: 10.1007/s10989-013-9369-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Patil S, Gawali S, Patil S, Basu S. Synthesis, characterization and in vitro evaluation of novel vitamin D3 nanoparticles as a versatile platform for drug delivery in cancer therapy. J Mater Chem B 2013; 1:5742-5750. [PMID: 32261230 DOI: 10.1039/c3tb21176b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of novel nanotechnology based platforms can impact cancer therapeutics in a paradigm shifting manner. The major concerns in drug delivery in cancer therapy are the biocompatibility, biodegradability, non-toxic nature, easy and short synthesis and versatility of the nanovectors. Herein we report the engineering of versatile nanoparticles from biocompatible, biodegradable and non-toxic lipid soluble vitamin D3. We have conjugated different clinically used cytotoxic drugs (paclitaxel and doxorubicin) as well as PI3 kinase inhibitor (PI103) with vitamin D3 using a succinic acid linker. Sub-200 nm, monodispersed nanoparticles with high drug loading were engineered from the vitamin D3-succinic acid-drug conjugates. These nanoparticles released the active drugs at pH 5.5 in a slow and sustained manner over 100 h. Furthermore, these nanoparticles were taken up by HeLa cells into the low pH lysosomal compartments through an endocytosis mechanism in 6 h. Finally, these drug loaded vitamin D3 nanoparticles induced HeLa cervical cancer cell death in a dose dependent manner at 48 h to show their potential in cancer therapeutics.
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Affiliation(s)
- Sumersing Patil
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr Homi Bhabha Road, Pashan, Pune, 411008, India
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Yuan W, Liu X, Zou H, Li J, Yuan H, Ren J. Synthesis, Self-Assembly, and Properties of Homoarm and Heteroarm Star-Shaped Inorganic-Organic Hybrid Polymers with a POSS Core. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300201] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Hyaluronan nanocapsules as a new vehicle for intracellular drug delivery. Eur J Pharm Sci 2013; 49:483-90. [PMID: 23684914 DOI: 10.1016/j.ejps.2013.05.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 03/05/2013] [Accepted: 05/08/2013] [Indexed: 11/23/2022]
Abstract
Here we report the development of new drug nanocarriers - named hyaluronan nanocapsules - for the intracellular delivery of hydrophobic anticancer drugs. These nanocapsules are composed of a lipid core and a shell of hyaluronic acid (HA). Nanocapsules were produced by a modified solvent displacement technique, which allows the formation of the polymer shell around the oily core using a cationic surfactant as an interphase bridge. The resulting nanocapsules have a size of ∼200 nm, a negative zeta potential and a spherical shape. The model drug docetaxel could be efficiently encapsulated within their core. The in vitro cell culture studies (NCI-H460 cancer cell line) showed that the cytotoxicity of docetaxel could be significantly enhanced due to its encapsulation within the nanocapsules. Interestingly, the nanocapsules were stable during storage and they could also be transformed into a powder by freeze-drying. These novel nanostructures hold promise as intracellular drug delivery systems.
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36
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Sosnik A. Temperature- and pH-sensitive Polymeric Micelles for Drug Encapsulation, Release and Targeting. SMART MATERIALS FOR DRUG DELIVERY 2013. [DOI: 10.1039/9781849736800-00115] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
More than 50% of the drugs in the market and 70% of the new candidates are poorly water soluble according to the Biopharmaceutic Classification System (BCS(. Poor aqueous solubility and physico-chemical stability of drugs in biological fluids remain key limitations in oral, parenteral and transdermal administration and contribute to an increase the drug attrition rate. Motivated by the outbreak of nanotechnology, different nanocarriers made of lipids and polymers have been designed and developed to address these limitations. Moreover, robust platforms were exploited to achieve the temporal and spatial release of drugs, thus constraining the systemic exposure to toxic agents and the appearance of severe adverse effects and improving the safety ratio. Owing to unique features such as (i( great chemical flexibility, (ii( capacity to host, solubilize and physico-chemically stabilize poorly water soluble drugs, (iii( ability to accumulate selectively in highly vascularized solid tumors and (iv( ability of single amphiphile molecules (unimers( to inhibit the activity of different pumps of the ATP-binding cassette superfamily (ABCs(, polymeric micelles have emerged as one of the most versatile nanotechnologies. Despite their diverse applications to improve the therapeutic outcomes, polymeric micelles remain clinically uncapitalized. The present chapter overviews the most recent applications of temperature- and pH-responsive polymeric micelles for the encapsulation, release and targeting of drugs and discusses the perspectives for these unique nanocarriers in the near future.
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Affiliation(s)
- Alejandro Sosnik
- The Group of Biomaterials and Nanotechnology for Improved Medicines (BIONIMED) Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, 956 Junín St., Buenos Aires CP1113 Argentina and National Science Research Council (CONICET) Buenos Aires, Argentina
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Shen JM, Gao FY, Yin T, Zhang HX, Ma M, Yang YJ, Yue F. cRGD-functionalized polymeric magnetic nanoparticles as a dual-drug delivery system for safe targeted cancer therapy. Pharmacol Res 2013; 70:102-15. [DOI: 10.1016/j.phrs.2013.01.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 01/13/2013] [Accepted: 01/16/2013] [Indexed: 11/16/2022]
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Bae KH, Lee JY, Lee SH, Park TG, Nam YS. Optically traceable solid lipid nanoparticles loaded with siRNA and paclitaxel for synergistic chemotherapy with in situ imaging. Adv Healthc Mater 2013. [PMID: 23184673 DOI: 10.1002/adhm.201200338] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Here, we report quantum dot-incorporating solid lipid nanoparticles (SLNs) for anticancer theranostics with synergistic therapeutic effects of paclitaxel-siRNA combination. The natural components of a low-density lipoprotein (LDL) are reconstituted to produce LDL-mimetic SLNs having a stable core/shell nanostructure incorporating quantum dots and paclitaxel within the lipid shell while anionic siRNA molecules are electrostatically complexed with the outer surface of SLNs. The produced SLN/siRNA complexes efficiently deliver both of paclitaxel and Bcl-2 targeted siRNA into human lung carcinoma cells and exhibit synergistic anticancer activities by triggering caspase-mediated apoptosis as determined by median effect plot analysis. Moreover, the strong fluorescence from quantum dots within SLNs enables in situ visualization of intracellular translocation of SLNs into cancer cells. Our study suggests that LDL-mimetic SLNs can be utilized as a multifunctional and optically traceable nanocarrier for efficient anticancer theranostics.
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Affiliation(s)
- Ki Hyun Bae
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
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Prodrugs as self-assembled hydrogels: a new paradigm for biomaterials. Curr Opin Biotechnol 2013; 24:1174-82. [PMID: 23465753 DOI: 10.1016/j.copbio.2013.02.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 02/02/2013] [Accepted: 02/09/2013] [Indexed: 11/22/2022]
Abstract
Prodrug-based self-assembled hydrogels represent a new class of active biomaterials that can be harnessed for medical applications, in particular the design of stimuli responsive drug delivery devices. In this approach, a promoiety is chemically conjugated to a known-drug to generate an amphiphilic prodrug that is capable of forming self-assembled hydrogels. Prodrug-based self-assembled hydrogels are advantageous as they alter the solubility of the drug, enhance drug loading, and eliminate the use of harmful excipients. In addition, self-assembled prodrug hydrogels can be designed to undergo controlled drug release or tailored degradation in response to biological cues. Herein we review the development of prodrug-based self-assembled hydrogels as an emerging class of biomaterials that overcome several common limitations encountered in conventional drug delivery.
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Parmar A, Parekh P, Bahadur P. Solubilization and Release of a Model Drug Nimesulide from PEO–PPO–PEO Block Copolymer Core–Shell Micelles: Effect of Size of PEO Blocks. J SOLUTION CHEM 2013. [DOI: 10.1007/s10953-012-9949-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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41
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Abstract
Paclitaxel is one of the most effective chemotherapeutic drugs ever developed and is active against a broad range of cancers, such as lung, ovarian, and breast cancers. Due to its low water solubility, paclitaxel is formulated in a mixture of Cremophor EL and dehydrated ethanol (50:50, v/v) a combination known as Taxol. However, Taxol has some severe side effects related to Cremophor EL and ethanol. Therefore, there is an urgent need for the development of alternative Taxol formulations. The encapsulation of paclitaxel in biodegradable and non-toxic nano-delivery systems can protect the drug from degradation during circulation and in-turn protect the body from toxic side effects of the drug thereby lowering its toxicity, increasing its circulation half-life, exhibiting improved pharmacokinetic profiles, and demonstrating better patient compliance. Also, nanoparticle-based delivery systems can take advantage of the enhanced permeability and retention (EPR) effect for passive tumor targeting, therefore, they are promising carriers to improve the therapeutic index and decrease the side effects of paclitaxel. To date, paclitaxel albumin-bound nanoparticles (Abraxane®) have been approved by the FDA for the treatment of metastatic breast cancer and non-small cell lung cancer (NSCLC). In addition, there are a number of novel paclitaxel nanoparticle formulations in clinical trials. In this comprehensive review, several types of developed paclitaxel nano-delivery systems will be covered and discussed, such as polymeric nanoparticles, lipid-based formulations, polymer conjugates, inorganic nanoparticles, carbon nanotubes, nanocrystals, and cyclodextrin nanoparticles.
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Affiliation(s)
- Ping Ma
- Center for Nanotechnology in Drug Delivery, Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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42
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Patil S, Patil S, Gawali S, Shende S, Jadhav S, Basu S. Novel self-assembled lithocholic acid nanoparticles for drug delivery in cancer. RSC Adv 2013. [DOI: 10.1039/c3ra42994f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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43
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Oh MH, Kim JS, Lee JY, Park TG, Nam YS. Radio-opaque theranostic nanoemulsions with synergistic anti-cancer activity of paclitaxel and Bcl-2 siRNA. RSC Adv 2013. [DOI: 10.1039/c3ra40883c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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44
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Lozano MV, Esteban H, Brea J, Loza MI, Torres D, Alonso MJ. Intracellular delivery of docetaxel using freeze-dried polysaccharide nanocapsules. J Microencapsul 2012; 30:181-8. [DOI: 10.3109/02652048.2012.714411] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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45
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Feng L, Mumper RJ. A critical review of lipid-based nanoparticles for taxane delivery. Cancer Lett 2012; 334:157-75. [PMID: 22796606 DOI: 10.1016/j.canlet.2012.07.006] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Accepted: 07/04/2012] [Indexed: 12/24/2022]
Abstract
Nano-based delivery systems have attracted a great deal of attention in the past two decades as a strategy to overcome the low therapeutic index of conventional anticancer drugs and delivery barriers in solid tumors. Myriads of preclinical studies have been focused on developing nano-based formulations to effectively deliver taxanes, one of the most important and most prescribed anticancer drug types in the clinic. Given the hydrophobic property of taxanes, lipid-based NPs, serve as a viable alternative delivery system. This critical review will provide an overview and perspective of the advancement of lipid-based nanoparticles for taxane delivery. Currently available formulations of taxanes and their drawbacks as well as criteria for idea taxane delivery system will be discussed.
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Affiliation(s)
- Lan Feng
- Center for Nanotechnology in Drug Delivery, Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Gu Q, Xing JZ, Huang M, Zhang X, Chen J. Nanoformulation of paclitaxel to enhance cancer therapy. J Biomater Appl 2012; 28:298-307. [PMID: 22561979 DOI: 10.1177/0885328212446822] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
UNLABELLED Paclitaxel is a microtubule inhibitor causing mitotic arrest and is widely used in cancer chemotherapy. However, its poor water solubility restricts its direct clinical applications. In this article, we report paclitaxel-loaded nanoparticles that are water soluble and that can improve the drug's bio-distribution and therapeutic efficacy. Paclitaxel-loaded nanoparticles were synthesized by using Pluronic copolymers (F-68 and P-123) and surfactant (Span 40) as nanocarrier. The toxicity and cellular uptake of paclitaxel-loaded nanoparticles were evaluated. The paclitaxel-loaded nanoparticles can completely disperse into phosphate buffer saline to produce a clear aqueous suspension. Based on HPLC analysis, the drug-loading rate is 9.0 ± 0.1% while drug encapsulation efficiency is 99.0 ± 1.0%. The cytotoxicity assay was performed using breast cancer MCF-7 and cervical cancer Hela cells. For MCF-7 cells, the half maximal inhibitory concentrations (IC50) of paclitaxel-loaded nanoparticles and paclitaxel are 8.5 ± 0.3 and 14.0 ± 0.7 ng/mL at 48 hours and 3.5 ± 0.4 and 5.2 ± 0.5 ng/mL at 72 hours across several runs. IC50 of paclitaxel-loaded nanoparticles and paclitaxel for Hela cells are 5.0 ± 0.3 and 8.0 ± 0.3 ng/mL at 48 hours and 2.0 ± 0.1 and 6.5 ± 0.3 ng/mL at 72 hours. In-vitro studies show that the drug's nanoformulation gives obvious enhancements in the drug's efficiency at killing cancer cells over paclitaxel alone. Materials of the nanocarrier used for nanoformulation are approved with low toxicity according to the result of cell studies. CONCLUSION paclitaxel-loaded nanoparticles greatly improved the physicochemical properties of paclitaxel without modifying its chemical structure, allowing for deep-site cancer drug delivery and enhancing the drug therapeutic efficiency.
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Affiliation(s)
- Quanrong Gu
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
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Bae KH, Ha YJ, Kim C, Lee KR, Park TG. Pluronic/chitosan shell cross-linked nanocapsules encapsulating magnetic nanoparticles. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 19:1571-83. [DOI: 10.1163/156856208786440451] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Ki Hyun Bae
- a Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea
| | - Young Jin Ha
- b Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea
| | - Chunsoo Kim
- c Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea
| | - Kyu-Ri Lee
- d Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea
| | - Tae Gwan Park
- e Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea
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48
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Hsu BYW, Teh C, Tan H, Wong SY, Zhang Y, Korzh V, Li X, Wang J. PEO surface-decorated silica nanocapsules and their application in in vivo imaging of zebrafish. RSC Adv 2012. [DOI: 10.1039/c2ra22472k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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49
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Lee JY, Bae KH, Kim JS, Nam YS, Park TG. Intracellular delivery of paclitaxel using oil-free, shell cross-linked HSA – Multi-armed PEG nanocapsules. Biomaterials 2011; 32:8635-44. [DOI: 10.1016/j.biomaterials.2011.07.063] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 07/20/2011] [Indexed: 10/17/2022]
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50
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Zhou Q, Guo X, Chen T, Zhang Z, Shao S, Luo C, Li J, Zhou S. Target-Specific Cellular Uptake of Folate-Decorated Biodegradable Polymer Micelles. J Phys Chem B 2011; 115:12662-70. [DOI: 10.1021/jp207951e] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Qi Zhou
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Xing Guo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Tao Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Zhao Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Shijun Shao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Chao Luo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Jinrong Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, and ‡School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
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