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Polymerized β-Cyclodextrin-Based Injectable Hydrogel for Sustained Release of 5-Fluorouracil/Methotrexate Mixture in Breast Cancer Management: In Vitro and In Vivo Analytical Validations. Pharmaceutics 2022; 14:pharmaceutics14040817. [PMID: 35456651 PMCID: PMC9025605 DOI: 10.3390/pharmaceutics14040817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/02/2022] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
An inclusion complexation, between polymerized β-cyclodextrin and cholesterol end-capping branched polyethylene glycol, was utilized for constructing a self-assembled hydrogel. The physicochemical properties, the in vitro release profiles of 5-Fluorouracil/methotrexate (anticancer drugs), and the surface morphology of the resulting hydrogel were studied. Moreover, in vivo studies were carried out on female rats bearing breast cancer. The results revealed that the prepared systems were white in color, rubbery, and homogenous. The in vitro release studies showed an efficient ability of the modified system for drug loading and release in a sustained release manner for 14 days. The surface morphology was spongy porous. Moreover, the tumors’ healing was indicated from the analysis of tumor volume, plasma tumor markers, and histopathological analysis, compared to the controlled rats. The pharmacokinetic parameters appeared significant differences (p < 0.05) in the Cmax and Tmax of the medicated hydrogel samples, as compared with sole or combined saline-injected samples. The whole AUC of each drug in the medicated hydrogel samples was five-fold more than the mixture administrated in PBS. In conclusion, the proposed work delivered a hydrogel system that has a convenient ability for localized sustained release of breast cancer management.
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Abdellatif AAH, Mohammed AM, Zayed G, El-Rasoul SA, Almawash S, Safwat MA, Osman SK. Cyclodextrin/Adamantane-Grafted Polyethylene Glycol-Based Self-assembling Constructs for Topical Delivery of Ketorolac Tromethamine: Formulation, Characterization, and In Vivo Studies. AAPS PharmSciTech 2022; 23:45. [PMID: 34981280 DOI: 10.1208/s12249-021-02188-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 11/29/2021] [Indexed: 01/02/2023] Open
Abstract
Topical formulation of non-steroidal anti-inflammatory drugs (NSAIDs) exhibits many advantages over the oral administration route, such as avoiding the direct effect on GIT and avoiding the poor oral bioavailability of such drugs. Our study aims to develop a new self-assembling construct based on the hydrophobic interaction between adamantane terminated poly (ethylene glycol) polymers and polymerized β-cyclodextrin. The viscous constructs were developed from direct mixing of host and guest polymer solutions, indicating spontaneous formation without cross-linkers. The modified system was evaluated by different analyses, including X-ray diffractometry, electron microscopy, isothermal titration calorimetry, and rheological analysis. Moreover, such a system's ability for drug loading and release was investigated via the in vitro release of ketorolac tromethamine (KT) as a model of NSAIDs. Finally, the prepared formulas were applied on a rat paw edema model to prove the enhanced anti-inflammatory activities. The obtained results indicated that the modified constructs have a rubbery porous structure with an amorphous nature. Also, from rheological results, the modified system exhibited a viscous behavior with higher loss modulus (G″) compared with storage (G'). The inclusion complexation between cyclodextrin and adamantane moieties was proved by the recorded high binding constants with a 1:1 stoichiometric ratio. Furthermore, the results showed the successful KT incorporation into the modified system and quantitatively released through a semi-permeable membrane in a sustained fashion (over 24 h). Finally, the in vivo results of the medicated constructs showed a significant inhibition of the induced inflammation and swelling, indicating that the modified construct has a great utility for safe non-irritating topical delivery applications.
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Cordaro A, Zagami R, Malanga M, Venkatesan JK, Alvarez-Lorenzo C, Cucchiarini M, Piperno A, Mazzaglia A. Cyclodextrin Cationic Polymer-Based Nanoassemblies to Manage Inflammation by Intra-Articular Delivery Strategies. NANOMATERIALS 2020; 10:nano10091712. [PMID: 32872542 PMCID: PMC7558260 DOI: 10.3390/nano10091712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 12/31/2022]
Abstract
Injectable nanobioplatforms capable of locally fighting the inflammation in osteoarticular diseases, by reducing the number of administrations and prolonging the therapeutic effect is highly challenging. β-Cyclodextrin cationic polymers are promising cartilage-penetrating candidates by intra-articular injection due to the high biocompatibility and ability to entrap multiple therapeutic and diagnostic agents, thus monitoring and mitigating inflammation. In this study, nanoassemblies based on poly-β-amino-cyclodextrin (PolyCD) loaded with the non-steroidal anti-inflammatory drug diclofenac (DCF) and linked by supramolecular interactions with a fluorescent probe (adamantanyl-Rhodamine conjugate, Ada-Rhod) were developed to manage inflammation in osteoarticular diseases. PolyCD@Ada-Rhod/DCF supramolecular nanoassemblies were characterized by complementary spectroscopic techniques including UV-Vis, steady-state and time-resolved fluorescence, DLS and ζ-potential measurement. Stability and DCF release kinetics were investigated in medium mimicking the physiological conditions to ensure control over time and efficacy. Biological experiments evidenced the efficient cellular internalization of PolyCD@Ada-Rhod/DCF (within two hours) without significant cytotoxicity in primary human bone marrow-derived mesenchymal stromal cells (hMSCs). Finally, polyCD@Ada-Rhod/DCF significantly suppressed IL-1β production in hMSCs, revealing the anti-inflammatory properties of these nanoassemblies. With these premises, this study might open novel routes to exploit original CD-based nanobiomaterials for the treatment of osteoarticular diseases.
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Affiliation(s)
- Annalaura Cordaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.C.); (R.Z.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy
| | - Roberto Zagami
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.C.); (R.Z.)
| | - Milo Malanga
- CycloLab, Illatos út 7, H-1097 Budapest, Hungary;
| | - Jagadeesh Kumar Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg/Saar, Germany; (J.K.V.); (M.C.)
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain;
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg/Saar, Germany; (J.K.V.); (M.C.)
| | - Anna Piperno
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy
- Correspondence: (A.P.); (A.M.)
| | - Antonino Mazzaglia
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.C.); (R.Z.)
- Correspondence: (A.P.); (A.M.)
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4
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Yao X, Huang P, Nie Z. Cyclodextrin-based polymer materials: From controlled synthesis to applications. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.03.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5
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Moon Y, Jafry AT, Bang Kang S, Young Seo J, Baek KY, Kim EJ, Pan JG, Choi JY, Kim HJ, Han Lee K, Jeong K, Bae SW, Shin S, Lee J, Lee Y. Organophosphorus hydrolase-poly-β-cyclodextrin as a stable self-decontaminating bio-catalytic material for sorption and degradation of organophosphate pesticide. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:261-269. [PMID: 30447633 DOI: 10.1016/j.jhazmat.2018.10.094] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 10/05/2018] [Accepted: 10/31/2018] [Indexed: 05/25/2023]
Abstract
A region suffering from an attack of a nerve agent requires not only a highly sorptive material but also a fast-acting catalyst to decontaminate the lethal chemical present. The product should be capable of high sorptive capacity, selectivity and quick response time to neutralize the long lasting harmful effects of nerve agents. Herein, we have utilized organophosphorus hydrolase (OPH) as a non-toxic bio-catalytic material held in with the supporting matrix of poly-β-cyclodextrin (PCD) as a novel sorptive reinforced self-decontaminating material against organophosphate intoxication. OPH coated PCD (OPH-PCD) will not only be providing support for holding enzyme but also would be adsorbing methyl paraoxon (MPO) used as a simulant, in a host-guest inclusion complex formation. Sorption trend for PCD revealed preference towards the more hydrophobic MPO against para-nitrophenol (pNP). The results show sorption capacity of 1.26 mg/g of 100 μM MPO with PCD which was 1.7 times higher compared to pNP. The reaction rate with immobilized OPH-PCD was found to be 23% less compared to free enzyme. With the help of OPH-PCD, continuous hydrolysis (100%) of MPO into pNP was observed for a period of 24 h through packed bed reactor with good reproducibility and stability of enzyme. The long-term stability also confirmed its stable nature for the investigation period of 4 days where it maintained activity. Combined with its fast and reactive nature, the resulting self-decontaminating regenerating material provides a promising strategy for the neutralization of nerve agents and preserving the environment.
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Affiliation(s)
- Youngkwang Moon
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Ali Turab Jafry
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Soon Bang Kang
- Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Jin Young Seo
- Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Kyung-Youl Baek
- Korea Institute of Science and Technology, Seoul, Republic of Korea
| | | | | | | | - Hyun-Ji Kim
- Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Kang Han Lee
- Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Keunhong Jeong
- Department of Chemistry and Nuclear & WMD Protection Research Center, Korea Military Academy, Seoul, Republic of Korea
| | - Se Won Bae
- Korea Institute of Industrial Technology, Cheonan, Republic of Korea
| | - Seunghan Shin
- Korea Institute of Industrial Technology, Cheonan, Republic of Korea
| | - Jinkee Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Yongwoo Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
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Tang Y, Lu X, Yin C, Zhao H, Hu W, Hu X, Li Y, Yang Z, Lu F, Fan Q, Huang W. Chemiluminescence-initiated and in situ-enhanced photoisomerization for tissue-depth-independent photo-controlled drug release. Chem Sci 2019; 10:1401-1409. [PMID: 30809357 PMCID: PMC6354828 DOI: 10.1039/c8sc04012e] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/09/2018] [Indexed: 01/10/2023] Open
Abstract
Tissue-penetration-depth-independent self-luminescence is highly expected to perform photoisomerization-related bioapplications in vivo to overcome the limitation of shallow tissue-penetration from external photoexcitation. However, it remains extremely challenging because of lacking a target-specific high-intensity self-luminescence to precisely and effectively drive the photoisomerization. Here, we first report a target-specific tissue-depth-independent photoisomerization in vivo by developing a target-specific initiated and in situ-enhanced chemiluminescence (one of self-luminescence) strategy that overcomes the limitation of lacking target-specific high-intensity self-luminescence. Considering that photoisomerization shows boundless glamour in drug-controlled release for disease-specific chemotherapy, we demonstrated applicability of our strategy to apply it in tumor-specific self-luminescence-controlled drug chemotherapy. Specifically, a chemiluminescence substrate and chemiluminescence fluorophore (antitumor drug, CPT) were co-encapsulated in host-guest carriers composed of cyclodextrin and the photoisomerization molecule azobenzene. Tumor-specific H2O2-induced chemiluminescence preliminarily isomerizes azobenzene, triggering the partial dissociation of host-guest carriers and CPT release. Particularly, the initially released CPT again functions as a chemiluminescence enhancer to achieve in situ enhanced chemiluminescence, assuring target-specific enhanced isomerization and CPT release. With high tumor-inhibition-rate (73%) and no obvious therapy-side-effect in vivo indicates the good efficiency and target-specificity of our chemiluminescence-driven photoisomerization. Although we only demonstrated one example of a photoisomerization-related bioapplication, namely photoisomerization-controlled drug chemotherapy, our work provides guidelines to design various target-specific tissue-depth-independent photoisomerization for bioapplications.
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Affiliation(s)
- Yufu Tang
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Xiaomei Lu
- Key Laboratory of Flexible Electronics (KLOFE) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (Nanjing Tech) , Nanjing 211816 , China
| | - Chao Yin
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Hui Zhao
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Wenbo Hu
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Xiaoming Hu
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Yuanyuan Li
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Zhen Yang
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Feng Lu
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays , Jiangsu Key Laboratory for Biosensors , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications (NUPT) , Nanjing 210023 , China .
- Key Laboratory of Flexible Electronics (KLOFE) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (Nanjing Tech) , Nanjing 211816 , China
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , Xi'an 710072 , China
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7
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Carn F, Nowak S, Chaab I, Diaz-Salmeron R, Djabourov M, Bouchemal K. Autoassemblies of α-Cyclodextrin and Grafted Polysaccharides: Crystal Structure and Specific Properties of the Platelets. J Phys Chem B 2018; 122:6055-6063. [DOI: 10.1021/acs.jpcb.8b01417] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Florent Carn
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot, Sorbonne Paris Cité, 10 Rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Sophie Nowak
- Plateforme Rayons X—UFR de Chimie, Université Paris Diderot, 35 rue Hélène Brion, 75205 Paris Cedex 13, France
| | - Ismail Chaab
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot, Sorbonne Paris Cité, 10 Rue Alice Domon et Léonie Duquet, 75205 Paris, France
- ESPCI Paris, Laboratoire de Physique Thermique, PSL Research University, 10 Rue Vauquelin, 75231 Paris Cedex 5, France
| | - Raul Diaz-Salmeron
- ESPCI Paris, Laboratoire de Physique Thermique, PSL Research University, 10 Rue Vauquelin, 75231 Paris Cedex 5, France
- Institut Galien Paris Sud, CNRS, Université Paris-Sud, Université Paris-Saclay, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Madeleine Djabourov
- ESPCI Paris, Laboratoire de Physique Thermique, PSL Research University, 10 Rue Vauquelin, 75231 Paris Cedex 5, France
| | - Kawthar Bouchemal
- Institut Galien Paris Sud, CNRS, Université Paris-Sud, Université Paris-Saclay, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
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8
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Tong L, Yang Y, Luan X, Shen J, Xin X. Supramolecular hydrogels facilitated by α-cyclodextrin and silicone surfactants and their use for drug release. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.03.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Self-assembled supramolecular hydrogel induced by β-cyclodextrin and ionic liquid-type imidazolium gemini surfactant. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.09.064] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Zheng Y, Wyman IW. Supramolecular Nanostructures Based on Cyclodextrin and Poly(ethylene oxide): Syntheses, Structural Characterizations and Applications for Drug Delivery. Polymers (Basel) 2016; 8:E198. [PMID: 30979290 PMCID: PMC6431930 DOI: 10.3390/polym8050198] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/10/2016] [Accepted: 05/10/2016] [Indexed: 11/16/2022] Open
Abstract
Cyclodextrins (CDs) have been extensively studied as drug delivery carriers through host⁻guest interactions. CD-based poly(pseudo)rotaxanes, which are composed of one or more CD rings threading on the polymer chain with or without bulky groups (or stoppers), have attracted great interest in the development of supramolecular biomaterials. Poly(ethylene oxide) (PEO) is a water-soluble, biocompatible polymer. Depending on the molecular weight, PEO can be used as a plasticizer or as a toughening agent. Moreover, the hydrogels of PEO are also extensively studied because of their outstanding characteristics in biological drug delivery systems. These biomaterials based on CD and PEO for controlled drug delivery have received increasing attention in recent years. In this review, we summarize the recent progress in supramolecular architectures, focusing on poly(pseudo)rotaxanes, vesicles and supramolecular hydrogels based on CDs and PEO for drug delivery. Particular focus will be devoted to the structures and properties of supramolecular copolymers based on these materials as well as their use for the design and synthesis of supramolecular hydrogels. Moreover, the various applications of drug delivery techniques such as drug absorption, controlled release and drug targeting based CD/PEO supramolecular complexes, are also discussed.
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Affiliation(s)
- Yue Zheng
- Department of internal medicine, The First Hospital in Qinhuangdao Affiliated to Hebei Medical University, Qinhuangdao 066004, China.
| | - Ian W Wyman
- Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada.
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11
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Shen J, Pang J, Xu G, Xin X, Yang Y, Luan X, Yuan S. Smart stimuli-responsive fluorescent vesicular sensor based on inclusion complexation of cyclodextrins with Tyloxapol. RSC Adv 2016. [DOI: 10.1039/c5ra26464b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel fluorescent vesicles based on inclusion complexes of β-cyclodextrins (β-CD) with Tyloxapol were constructed.
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Affiliation(s)
- Jinglin Shen
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Jinyu Pang
- Shanxi Transportation Research Institute
- Taiyuan 030006
- P. R. China
| | - Guiying Xu
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
- National Engineering Technology Research Center for Colloidal Materials
| | - Xia Xin
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
- National Engineering Technology Research Center for Colloidal Materials
| | - Yingjie Yang
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Xiaoyu Luan
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Shiling Yuan
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
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12
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Yuan S, Chen J, Sheng J, Hu Y, Jiang Z. Paclitaxel-Loaded β
-Cyclodextrin-Modified Poly(Acrylic Acid) Nanoparticles through Multivalent Inclusion for Anticancer Therapy. Macromol Biosci 2015; 16:341-9. [DOI: 10.1002/mabi.201500302] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/09/2015] [Indexed: 12/18/2022]
Affiliation(s)
- Shanmei Yuan
- Institute of Materials Engineering; National Laboratory of Solid State Microstructure; College of Engineering and Applied Sciences; Nanjing University; Nanjing 210093 P.R. China
| | - Jiao Chen
- Institute of Materials Engineering; National Laboratory of Solid State Microstructure; College of Engineering and Applied Sciences; Nanjing University; Nanjing 210093 P.R. China
| | - Jie Sheng
- School of Electronic and Information Engineering; Yili Normal University; Yining 835000 P.R. China
| | - Yong Hu
- Institute of Materials Engineering; National Laboratory of Solid State Microstructure; College of Engineering and Applied Sciences; Nanjing University; Nanjing 210093 P.R. China
| | - Zhongying Jiang
- School of Electronic and Information Engineering; Yili Normal University; Yining 835000 P.R. China
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13
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Shen J, Xin X, Zhang Y, Song L, Wang L, Tang W, Ren Y. Manipulation the behavior of supramolecular hydrogels of α-cyclodextrin/star-like block copolymer/carbon-based nanomaterials. Carbohydr Polym 2015; 117:592-599. [DOI: 10.1016/j.carbpol.2014.10.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/10/2014] [Accepted: 10/08/2014] [Indexed: 11/30/2022]
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14
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Lakkakula JR, Maçedo Krause RW. A vision for cyclodextrin nanoparticles in drug delivery systems and pharmaceutical applications. Nanomedicine (Lond) 2015; 9:877-94. [PMID: 24981652 DOI: 10.2217/nnm.14.41] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Cyclodextrins (CDs) have brought a revolution in the pharmaceutical field over the last decade. Natural and modified CDs (α-CD and β-CD) have been studied and some have gained US FDA approval or achieved 'Generally Regarded as Safe' (GRAS) status. Another characteristic of CDs is the ease with which they can be induced to form supramolecular structures for its use in drug delivery. CDs, grafted or crosslinked with polymers, are now being developed into 'smart' systems for efficient targeted drug delivery, especially for hydrophobic drugs. Amphiphilic CDs have the ability to form nanospheres or nanocapsules via a simple nanoprecipitation technique. This review deals with different types of CDs, and their efficacy, physicochemical properties and transformation into nanoparticles with interesting in vitro and in vivo applications.
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Affiliation(s)
- Jaya Raju Lakkakula
- Department of Applied Chemistry, Center for Nanomaterials Science, University of Johannesburg, Doornfontein 2028, Gauteng, South Africa
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15
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Shen J, Xu G, Xin X, Wang L, Song Z, Zhang H, Tong L, Yang Z. Supramolecular hydrogels of α-cyclodextrin/reverse poloxamines/carbon-based nanomaterials and its multi-functional application. RSC Adv 2015. [DOI: 10.1039/c5ra04351d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Supramolecular hydrogels were prepared using α-cyclodextrin (α-CD) and a poloxamine (reverse Tetronic 90R4, T90R4) which has four diblock arms with a poly(propylene oxide)–poly(ethylene oxide) (PPO–PEO) structure.
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Affiliation(s)
- Jinglin Shen
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Guiying Xu
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
- National Engineering Technology Research Center for Colloidal Materials
| | - Xia Xin
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
- National Engineering Technology Research Center for Colloidal Materials
| | - Lin Wang
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Zhaohua Song
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Han Zhang
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Lu Tong
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Zewen Yang
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
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Vishwakarma NK, Patel VK, Hira SK, Ramesh K, Srivastava P, Mitra K, Singh S, Chattopadhyay D, Maiti P, Misra N, Manna PP, Ray B. Tadpole-shaped β-cyclodextrin-tagged poly(N-vinylpyrrolidone): synthesis, characterization and studies of its complexation with phenolphthalein and anti tumor activities. RSC Adv 2015. [DOI: 10.1039/c4ra15359f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
DOX-loaded β-CD-PNVP shows more effective delivery of DOX compared to free DOX towards the U2-OS, MCF-7 and HEPG2 cell lines.
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17
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Ma M, Shang W, Xing P, Li S, Chu X, Hao A, Liu G, Zhang Y. A supramolecular vesicle of camptothecin for its water dispersion and controllable releasing. Carbohydr Res 2015; 402:208-14. [DOI: 10.1016/j.carres.2014.09.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 09/03/2014] [Accepted: 09/25/2014] [Indexed: 01/19/2023]
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18
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A multistimuli-responsive supramolecular vesicle constructed by cyclodextrins and tyrosine. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3424-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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19
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Simões SM, Veiga F, Ribeiro AC, Figueiras AR, Taboada P, Concheiro A, Alvarez-Lorenzo C. Supramolecular gels of poly-α-cyclodextrin and PEO-based copolymers for controlled drug release. Eur J Pharm Biopharm 2014; 87:579-88. [DOI: 10.1016/j.ejpb.2014.04.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 04/15/2014] [Accepted: 04/16/2014] [Indexed: 11/27/2022]
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20
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Namgung R, Mi Lee Y, Kim J, Jang Y, Lee BH, Kim IS, Sokkar P, Rhee YM, Hoffman AS, Kim WJ. Poly-cyclodextrin and poly-paclitaxel nano-assembly for anticancer therapy. Nat Commun 2014; 5:3702. [DOI: 10.1038/ncomms4702] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Accepted: 03/21/2014] [Indexed: 01/06/2023] Open
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21
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Larrañeta E, Martínez-Ohárriz C, Vélaz I, Zornoza A, Machín R, Isasi JR. In Vitro Release from Reverse Poloxamine/α-Cyclodextrin Matrices: Modelling and Comparison of Dissolution Profiles. J Pharm Sci 2014; 103:197-206. [DOI: 10.1002/jps.23774] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 09/26/2013] [Accepted: 10/16/2013] [Indexed: 02/04/2023]
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22
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Larrañeta E, Isasi JR. Non-covalent hydrogels of cyclodextrins and poloxamines for the controlled release of proteins. Carbohydr Polym 2013; 102:674-81. [PMID: 24507335 DOI: 10.1016/j.carbpol.2013.11.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 10/09/2013] [Accepted: 11/01/2013] [Indexed: 11/25/2022]
Abstract
Different types of gels were prepared by combining poloxamines (Tetronic), i.e. poly(ethylene oxide)/poly(propylene oxide) (PEO/PPO) octablock star copolymers, and cyclodextrins (CD). Two different poloxamines with the same molecular weight (ca. 7000) but different molecular architectures were used. For each of their four diblock arms, direct Tetronic 904 presents PEO outer blocks while in reverse Tetronic 90R4 the hydrophilic PEO blocks are the inner ones. These gels were prepared by combining α-CD and poloxamine aqueous solutions. The physicochemical properties of these systems depend on several factors such as the structure of the block copolymers and the Tetronic/α-CD ratio. These gels were characterized using differential scanning calorimetry (DSC), viscometry and X-ray diffraction measurements. The 90R4 gels present a consistency that makes them suitable for sustained drug delivery. The resulting gels were easily eroded: these complexes were dismantled when placed in a large amount of water, so controlled release of entrapped large molecules such as proteins (Bovine Serum Albumin, BSA) is feasible and can be tuned by varying the copolymer/CD ratio.
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Affiliation(s)
- Eneko Larrañeta
- Departamento de Química y Edafología, Facultad de Ciencias, Universidad de Navarra, 31080 Pamplona, Navarra, Spain
| | - José Ramón Isasi
- Departamento de Química y Edafología, Facultad de Ciencias, Universidad de Navarra, 31080 Pamplona, Navarra, Spain.
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23
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Wohl BM, Smith AAA, Kryger MBL, Zelikin AN. Narrow therapeutic window of ribavirin as an inhibitor of nitric oxide synthesis is broadened by macromolecular prodrugs. Biomacromolecules 2013; 14:3916-26. [PMID: 24156371 DOI: 10.1021/bm401048s] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Ribavirin (RBV), a broad-spectrum antiviral agent, is a standard medication against hepatitis C virus (HCV). However, despite the decades of clinical success, the mechanism of action of this drug against HCV remains a subject of debate. Furthermore, the appeal of this therapeutic agent is considerably lessened by unfavorable pharmacokinetics. This interdisciplinary study contributes to the understanding of intracellular effects exerted by RBV and presents a successful design of macromolecular prodrugs of RBV to achieve a safer treatment. Specifically, we demonstrate that RBV exhibits a pronounced anti-inflammatory activity in cultured macrophages as is evidenced by a 2-fold decrease in the levels of produced nitric oxide achieved using a clinically relevant concentration of this drug. However, this effect was characterized by a rather narrow therapeutic window with experimental values of EC50 and IC50 being 7 and 19 μM, respectively. Macromolecular prodrugs were obtained using an acrylate derivative of RBV, RAFT polymerization technique, and N-vinyl pyrrolidone as a partner monomer. The synthesized polymers were characterized with uniform molecular weights, relatively narrow polydispersities, and gradually increasing content of RBV. The resulting polymer therapeutics were effective in delivering their payload to the cultured macrophages and afforded a significantly wider therapeutic window, as much as >1000 μM (18-fold in relative values). Taken together, this work contributes significantly to the development of safer methods for delivery of RBV, as well as understanding the mechanism of action and origins of the side effects of this broad-spectrum antiviral agent.
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Affiliation(s)
- Benjamin M Wohl
- Department of Chemistry and ‡iNano Interdisciplinary Nanoscience Centre, Aarhus University , Aarhus 8000, Denmark
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24
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Kryger MBL, Smith AAA, Wohl BM, Zelikin AN. Macromolecular prodrugs for controlled delivery of ribavirin. Macromol Biosci 2013; 14:173-85. [PMID: 24105953 DOI: 10.1002/mabi.201300244] [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] [Received: 05/19/2013] [Revised: 08/05/2013] [Indexed: 12/21/2022]
Abstract
Ribavirin (RBV)-containing polymers are synthesized based on poly(N-vinylpyrrolidone) and poly(acrylic acid), two polymers with extensive characterization in biomedicine. The copolymers are shown to exhibit a minor to negligible degree of association with erythrocytes, thus effectively eliminating the origin of the main side effects of RBV. The therapeutic benefit of macromolecular RBV prodrugs is illustrated by matched efficacy in suppressing production of nitric oxide by stimulated cultured macrophages as compared to pristine RBV with no associated cytotoxicity, which is in stark contrast to an RBV-based treatment which results in a significant decrease in cell viability. These results contribute to the development of antiviral polymer therapeutics and delivery of RBV in particular.
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Affiliation(s)
- Mille B L Kryger
- Interdisciplinary Nanoscience Centre (iNANO), Gustav WiedsVej 14, DK-8000, Aarhus C, Denmark
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25
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Dextran-based cyclodextrin polymers: Their solubilizing effect and self-association. Carbohydr Polym 2013; 97:635-42. [DOI: 10.1016/j.carbpol.2013.05.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 05/17/2013] [Accepted: 05/20/2013] [Indexed: 11/19/2022]
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26
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El Fagui A, Amiel C. PLA nanoparticles coated with a β-cyclodextrin polymer shell: Preparation, characterization and release kinetics of a hydrophobic compound. Int J Pharm 2012; 436:644-51. [DOI: 10.1016/j.ijpharm.2012.07.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 07/20/2012] [Accepted: 07/20/2012] [Indexed: 01/01/2023]
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27
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Larrañeta E, Isasi JR. Self-assembled supramolecular gels of reverse poloxamers and cyclodextrins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12457-12462. [PMID: 22823574 DOI: 10.1021/la3024452] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A series of supramolecular aggregates were prepared using a poly(propylene oxide)-poly(ethylene oxide)-poly(propylene oxide) (PPO-PEO-PPO) block copolymer and β- or α-cyclodextrins (CD). The combination of β-CD and the copolymer yields inclusion complexes (IC) with polypseudorotaxane structures. These are formed by complexation of the PPO blocks with β-CD molecules producing a powder precipitate with a certain crystallinity degree that can be evaluated by X-ray diffraction (XRD). In contrast, when combining α-CD with the block copolymer, the observed effect is an increase in the viscosity of the mixtures yielding fluid gels. Two cooperative effects come into play: the complexation of PEO blocks with α-CD and the hydrophobic interactions between PPO blocks in aqueous media. These two combined interactions lead to the formation of a macromolecular network. The resulting fluid gels were characterized using different techniques such as differential scanning calorimetry (DSC), viscometry, and XRD measurements.
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Affiliation(s)
- Eneko Larrañeta
- Departamento de Química y Edafología, Facultad de Ciencias, Universidad de Navarra, 31080 Pamplona, Navarra, Spain
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28
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Moya-Ortega MD, Alvarez-Lorenzo C, Concheiro A, Loftsson T. Cyclodextrin-based nanogels for pharmaceutical and biomedical applications. Int J Pharm 2012; 428:152-63. [PMID: 22388054 DOI: 10.1016/j.ijpharm.2012.02.038] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 02/22/2012] [Accepted: 02/23/2012] [Indexed: 11/18/2022]
Abstract
Hydrophilic nanogels combine the advantages of hydrogels with certain advantages that are inherent in their nanoscale size. Similar to macrogels, nanogels can contain and protect drugs and regulate their release by incorporating high-affinity functional groups, stimuli-responsive conformations and biodegradable bonds into the polymer network. Similar to nanoparticles, nanogels can easily be administered in liquid form for parenteral drug delivery. The nanoscale size of nanogels gives them a high specific surface area that is available for further bioconjugation of active targeting agents. Biodistribution and drug release can be modulated through size adjustments. The incorporation of hydrophilic cyclodextrin (CD) moieties into the polymeric network of the nanogels provides them with a drug loading and release mechanism that is based on the formation of inclusion complexes without decreasing the hydrophilicity of the network. The covalent attachment of CD molecules to the chemically crosslinked networks may enable the CDs to display fully their ability to form complexes, while simultaneously preventing drug release upon media dilution. The preparation, characterization and advantages for pharmaceutical and biomedical applications of CD-based nanogels are reviewed in this article.
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Affiliation(s)
- Maria D Moya-Ortega
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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29
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Fülöp Z, Kurkov S, Nielsen T, Larsen K, Loftsson T. Self-assembly of cyclodextrins: formation of cyclodextrin polymer based nanoparticles. J Drug Deliv Sci Technol 2012. [DOI: 10.1016/s1773-2247(12)50032-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Wintgens V, Nielsen TT, Larsen KL, Amiel C. Size-controlled nanoassemblies based on cyclodextrin-modified dextrans. Macromol Biosci 2011; 11:1254-63. [PMID: 21728236 DOI: 10.1002/mabi.201100097] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 04/21/2011] [Indexed: 11/12/2022]
Abstract
Nanoassemblies formed by host/guest interactions between two polymers in aqueous media are studied. Two types of polymers with the same dextran backbone are modified with adamantyl or βCD groups. The sizes of the spontaneously formed nanoassemblies depend on the βCD:Ada ratio and on the total concentration and composition of the mixtures. The results can be rationalized by assuming a core/shell structure of the nanoassemblies, the core resulting from associative phase separation of the two polymers and being stabilized by an external shell made of Ada-grafted dextran and containing ions adsorbed from the solution. Hydrophobic compounds such as benzophenone can be incorporated efficiently without inducing changes in properties of the nanoassemblies.
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Affiliation(s)
- Véronique Wintgens
- Systèmes Polymères Complexes, ICMPE-CNRS, 2 rue Henri Dunant, 94320 Thiais, France
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31
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Falconer RJ, Collins BM. Survey of the year 2009: applications of isothermal titration calorimetry. J Mol Recognit 2010; 24:1-16. [DOI: 10.1002/jmr.1073] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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32
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Trellenkamp T, Ritter H. Poly(N-vinylpyrrolidone) Bearing Covalently Attached Cyclodextrin via Click-Chemistry: Synthesis, Characterization, and Complexation Behavior with Phenolphthalein. Macromolecules 2010. [DOI: 10.1021/ma100812q] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Taina Trellenkamp
- Heinrich-Heine-University Düsseldorf, Institute of Organic Chemistry und Macromolecular Chemistry Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Helmut Ritter
- Heinrich-Heine-University Düsseldorf, Institute of Organic Chemistry und Macromolecular Chemistry Universitätsstrasse 1, 40225 Düsseldorf, Germany
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33
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van de Manakker F, Vermonden T, van Nostrum CF, Hennink WE. Cyclodextrin-based polymeric materials: synthesis, properties, and pharmaceutical/biomedical applications. Biomacromolecules 2010; 10:3157-75. [PMID: 19921854 DOI: 10.1021/bm901065f] [Citation(s) in RCA: 425] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This review describes the synthesis, properties, and, in particular, biomedical and pharmaceutical applications of an upcoming class of polymeric networks and assemblies based on cyclodextrins (CDs). CDs are cyclic oligosaccharides composed of alpha-1,4-coupled d-glucose units, which contain a hydrophobic internal cavity that can act as a host for various, generally lipophilic, guest molecules. Because of this unique physicochemical property, commonly referred to as inclusion complex formation, CDs have often been used to design polymeric materials, such as hydrogels and nanoparticles. Polymeric systems based on CDs exhibit unique characteristics in terms of mechanical properties, stimuli-responsiveness, and drug release characteristics. In this contribution, first, an outline is given of covalently cross-linked polymeric networks in which CD moieties were structurally incorporated to modulate the network strength as well as the complexation and release of low molecular weight drugs. Second, physically assembled polymeric systems are discussed, of which the formation is accomplished by inclusion complexes between polymer-conjugated CDs and various guest molecule-derivatized polymers. Due to their physical nature, these polymeric systems are sensitive to external stimuli, such as temperature changes, shear forces and the presence of competing CD-binding molecules, which can be exploited to use these systems as injectable, in situ gelling devices. In recent years, many interesting CD-containing polymeric systems have been described in literature. These systems have to be optimized and extensively evaluated in preclinical studies concerning their safety and efficacy, making future clinical applications of these materials in the biomedical and pharmaceutical field feasible.
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Affiliation(s)
- Frank van de Manakker
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Sorbonnelaan 16, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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