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Wang S, Xie L, Liu Y, Yang Q, Jia W, Zhao D, Zhao X. Study on the preparation and activity of intelligent response poly(lactic-co-glycolic acid)-ss-polyethylene glycol copolymer micelles. J Biomater Appl 2022; 37:259-274. [PMID: 35533369 DOI: 10.1177/08853282221088182] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Amphiphilic polymer micellar carriers are the most commonly used nanocarriers for oral delivery of hydrophobic drugs because their hydrophilic shell can avoid the recognition of the reticuloendothelial system (RES), has excellent drug-carrying capacity, and protect the drug from inactivation in the gastrointestinal fluid. The polymer micelle shell can enter cancer cells by endocytosis, and autophagy in cells, degradation by lysosomal pathway, so as to release drugs, prolong the circulation time of drugs in vivo, and then achieve the effect of drug sustained release. In this study, the glutathione-responsive PLGA-ss-PEG loaded paclitaxel (PTX) micelles (PLGA-ss-PEG-PTX) were developed for anticancer therapy. With its long-term circulation and EPR (enhanced permeability and retention) effect, and the micelle had disulfide bond, which could be used as the recognition group of tumor microenvironment, so that the PLGA-ss-PEG-PTX could specifically accumulate at the tumor site, so as to produce better anti-tumor effect. The PLGA-ss-PEG-PTX was formulated by the emulsification method in this study. The drug loading was about 21.54%, the entrapment efficiency was about 94.2%, and the particle size range was about 90 nm with narrow particle size distribution. Cytotoxicity and embryonic toxicity experiments were carried out using mouse lung cancer cells (LLC) and zebrafish fertilized eggs. It was proved that the low concentration of blank micelles had little cytotoxicity, but high concentration of blank micelles had adverse effects on zebrafish embryonic development, resulting in embryonic malformation. The uptake of drugs by cancer cells was studied by a high connotation cell imaging analysis system. The experiments showed that the drug molecules encapsulated in micelles could achieve higher uptake by cells compared with free drug molecules. In addition, in the in vivo evaluation experiment of drugs, the PLGA-ss-PEG-PTX could significantly enhance the therapeutic effect of the PTX, improve its water solubility, and improve its oral bioavailability.
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Affiliation(s)
- Siying Wang
- 47820Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, People's Republic of China.,47820Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, People's Republic of China.,47820National Engineering Laboratory of BioResource EcoUtilization, Harbin, People's Republic of China
| | - Lanlan Xie
- 47820Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, People's Republic of China.,47820Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, People's Republic of China.,47820National Engineering Laboratory of BioResource EcoUtilization, Harbin, People's Republic of China
| | - Yanjie Liu
- 47820Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, People's Republic of China.,47820Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, People's Republic of China.,47820National Engineering Laboratory of BioResource EcoUtilization, Harbin, People's Republic of China
| | - Qilei Yang
- 47820Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, People's Republic of China.,47820Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, People's Republic of China.,47820National Engineering Laboratory of BioResource EcoUtilization, Harbin, People's Republic of China
| | - Wenqiang Jia
- 47820Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, People's Republic of China.,47820Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, People's Republic of China.,47820National Engineering Laboratory of BioResource EcoUtilization, Harbin, People's Republic of China
| | - Dongmei Zhao
- 47820Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, People's Republic of China.,47820Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, People's Republic of China.,47820National Engineering Laboratory of BioResource EcoUtilization, Harbin, People's Republic of China
| | - Xiuhua Zhao
- 47820Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, People's Republic of China.,47820Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin, People's Republic of China.,47820Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, People's Republic of China.,47820National Engineering Laboratory of BioResource EcoUtilization, Harbin, People's Republic of China
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Lu MK, Chao CH, Hsu YC, Chang CC. Structural sequencing and anti-inflammatory, anti-lung cancer activities of 1,4-α/β-sulfomalonoglucan in Antrodia cinnamomea. Int J Biol Macromol 2020; 170:307-316. [PMID: 33358951 DOI: 10.1016/j.ijbiomac.2020.12.135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/04/2020] [Accepted: 12/17/2020] [Indexed: 12/31/2022]
Abstract
Antrodia cinnamomea is a precious Polyporaceous fungus with various bioactivities. This study reports the chemical identification and biological activities of sulfomalonoglucan, a sulfated polysaccharide (SPS), from the sodium sulfate enriched medium of the title fungus. The SPS-containing fraction was separated by gel filtration chromatography (GFC) to give the title SPS (denoted as Na10_SPS-F3). By analyzing the evidence for key inter-glycosidic linkages in the 1D and 2D NMR spectroscopic data, one possible repeat unit was proposed as: Na10_SPS-F3 inhibited the secretion of tumor necrosis factor (TNF-α) and interleukin (IL)-6 after lipopolysaccharide (LPS) stimulation in RAW264.7 macrophages. Mechanistically, Na10_SPS-F3 downregulated TGFRII also attenuated the LPS-induced IκB-α degradation. Moreover, Na10_SPS-F3 inhibited lung cancer cell H1975 EGFR/ERK signaling. This is the first paper reporting a 3-O-sulfomalonyl glucan (Na10_SPS-F3) with eight 1,4-β-Glc moieties connected with ten 1,4-α-Glc moieties from Antrodia cinnamomea and its anti-inflammatory and anti-cancer activities.
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Affiliation(s)
- Mei-Kuang Lu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan
| | - Chi-Hsein Chao
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Yu-Chi Hsu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Chia-Chuan Chang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan.
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Self-assembled formation of chondroitin sulfate-based micellar nanogel for curcumin delivery to breast cancer cells. Int J Biol Macromol 2020; 161:771-778. [PMID: 32544591 DOI: 10.1016/j.ijbiomac.2020.06.108] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 05/27/2020] [Accepted: 06/11/2020] [Indexed: 12/21/2022]
Abstract
Nanogel based drug delivery systems have been broadly used for cancer treatment. In this research, octadecylamine was grafted to chondroitin sulfate using three different mole ratios (10, 20, and 30) and named CS-ODA1, 2, and 3, respectively. The amide bond formation between chondroitin sulfate and octadecylamine was confirmed by 1H-nuclear magnetic resonance (HNMR) in the CS-ODA3 sample; therefore, further analysis was performed on this sample. Curcumin was loaded at defined Cur/CS-ODA ratios (5, 10 and 15%) and CS-ODA3 with 10% curcumin was selected for further experiments due to more entrapment efficiency (79.56% ± 5.56). In vitro release profile of the curcumin loaded nanogels showed >80% release after 70 h. In addition, the results of MTT analysis on the MCF-7 cell line showed almost no toxicity toward blank nanogels, while curcumin-loaded nanogels induced significant death after 24 h. In the end, analysis of the cell cycle using MCF-7 cells also confirmed the cytotoxicity of curcumin loaded nanogels. This study also showed that the presence of curcumin loaded chondroitin sulfate nanogels could successfully increase cellular uptake in comparison with free curcumin. The synthesized nanogels containing curcumin are expected to be effective for further studies in cancer treatment.
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Self-assembling cashew gum-graft-polylactide copolymer nanoparticles as a potential amphotericin B delivery matrix. Int J Biol Macromol 2020; 152:492-502. [PMID: 32097738 DOI: 10.1016/j.ijbiomac.2020.02.166] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 01/13/2023]
Abstract
Amphotericin B is an antibiotic used in the treatment of fungal disease and leishmania; however, it exhibits side effects to patients, hindering its wider application. Therefore, nanocarriers have been investigated as delivery systems for amphotericin B (AMB) in order to decrease its toxicity, besides increase bioavailability and solubility. Amphiphilic copolymers are interesting materials to encapsulate hydrophobic drugs such as AMB, hence copolymers of cashew gum (CG) and l-lactide (LA) were synthesized using two different CG:LA molar ratios (1:1 and 1:10). Data obtained revealed that copolymer nanoparticles present similar figures for particle sizes and zeta potentials; however, particle size of encapsulated AMB increases if compared to unloaded nanoparticles. The 1:10 nanoparticle sample has better stability although higher polydispersity index (PDI) if compared to 1:1 sample. High amphotericin (AMB) encapsulation efficiencies and low hemolysis were obtained. AMB loaded copolymers show lower aggregation pattern than commercial AMB solution. AMB loaded nanoparticles show antifungal activities against four C. albicans strains. It can be inferred that cashew gum/polylactide copolymers have potential as nanocarrier systems for AMB.
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Pan Y, Xiao C, Tan H, Yuan G, Li J, Li S, Jia Y, Xiong D, Hu X, Niu X. Covalently injectable chitosan/chondroitin sulfate hydrogel integrated gelatin/heparin microspheres for soft tissue engineering. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1695210] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Yajing Pan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Chao Xiao
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Huaping Tan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Guoliang Yuan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Jianliang Li
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Shengke Li
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Yang Jia
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Dangsheng Xiong
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Xiaohong Hu
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Xiaohong Niu
- Department of Luoli, Nanjing Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing, China
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6
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Bedini E, Laezza A, Iadonisi A. Chemical Derivatization of Sulfated Glycosaminoglycans. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600108] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Emiliano Bedini
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo; via Cintia 4 80126 Napoli Italy
| | - Antonio Laezza
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo; via Cintia 4 80126 Napoli Italy
| | - Alfonso Iadonisi
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo; via Cintia 4 80126 Napoli Italy
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Das D, Patra P, Ghosh P, Rameshbabu AP, Dhara S, Pal S. Dextrin and poly(lactide)-based biocompatible and biodegradable nanogel for cancer targeted delivery of doxorubicin hydrochloride. Polym Chem 2016. [DOI: 10.1039/c6py00213g] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, we report the development and application of a novel biocompatible, chemically crosslinked nanogel for use in anticancer drug delivery.
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Affiliation(s)
- Dipankar Das
- Polymer Chemistry Laboratory
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
| | - Priyapratim Patra
- Polymer Chemistry Laboratory
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
| | - Paulomi Ghosh
- Biomaterials and Tissue Engineering Laboratory
- School of Medical Science & Technology
- Indian Institute of Technology
- Kharagpur-721302
- India
| | - Arun Prabhu Rameshbabu
- Biomaterials and Tissue Engineering Laboratory
- School of Medical Science & Technology
- Indian Institute of Technology
- Kharagpur-721302
- India
| | - Santanu Dhara
- Biomaterials and Tissue Engineering Laboratory
- School of Medical Science & Technology
- Indian Institute of Technology
- Kharagpur-721302
- India
| | - Sagar Pal
- Polymer Chemistry Laboratory
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
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Guo Y, Zhang P, Zhao Q, Wang K, Luan Y. Reduction-Sensitive Polymeric Micelles Based on Docetaxel-Polymer Conjugates Via Disulfide Linker for Efficient Cancer Therapy. Macromol Biosci 2015; 16:420-31. [PMID: 26647779 DOI: 10.1002/mabi.201500317] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 09/15/2015] [Indexed: 01/18/2023]
Affiliation(s)
- Yuanyuan Guo
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
| | - Pei Zhang
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
| | - Qingyun Zhao
- Hospital of Traditional Chinese Medicine of Jimo; Shandong Province P. R. China
| | - Kaiming Wang
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
| | - Yuxia Luan
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
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New progress and prospects: The application of nanogel in drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 60:560-568. [PMID: 26706564 DOI: 10.1016/j.msec.2015.11.041] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 10/21/2015] [Accepted: 11/16/2015] [Indexed: 12/29/2022]
Abstract
Nanogel has attracted considerable attention as one of the most versatile drug delivery systems especially for site-specific and/or time-controlled delivery of bioactive agents owing to their combining features of hydrogel and nanoparticle. Physically synthesized nanogels can offer a platform to encapsulate various types of bioactive compounds, particularly hydrophobic drugs and biomacromolecules, but they have poor mechanical stability, whereas nanogels prepared by chemical cross-link have a wider application and larger flexibility. As an ideal drug-delivery carrier, nanogel has excellent drug loading capacity, high stability, biologic consistence and response to a wide variety of environmental stimuli. Nowadays, targeting and response especially multi-response of the nanogel system for drug delivery have become an issue in research. And the application study of nanogels mainly focuses on antitumor agents and proteins. This review focuses on the formation of nanogels (physical and chemical cross-linking) and their release behavior. Recent application of nanogels is also discussed.
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10
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Chondroitin sulfate-based nanocarriers for drug/gene delivery. Carbohydr Polym 2015; 133:391-9. [DOI: 10.1016/j.carbpol.2015.07.063] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/17/2015] [Accepted: 07/18/2015] [Indexed: 11/22/2022]
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11
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Utilization of Glycosaminoglycans/Proteoglycans as Carriers for Targeted Therapy Delivery. Int J Cell Biol 2015; 2015:537560. [PMID: 26448753 PMCID: PMC4581573 DOI: 10.1155/2015/537560] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Revised: 01/19/2015] [Accepted: 02/15/2015] [Indexed: 02/07/2023] Open
Abstract
The outcome of patients with cancer has improved significantly in the past decade with the incorporation of drugs targeting cell surface adhesive receptors, receptor tyrosine kinases, and modulation of several molecules of extracellular matrices (ECMs), the complex composite of collagens, glycoproteins, proteoglycans, and glycosaminoglycans that dictates tissue architecture. Cancer tissue invasive processes progress by various oncogenic strategies, including interfering with ECM molecules and their interactions with invasive cells. In this review, we describe how the ECM components, proteoglycans and glycosaminoglycans, influence tumor cell signaling. In particular this review describes how the glycosaminoglycan hyaluronan (HA) and its major receptor CD44 impact invasive behavior of tumor cells, and provides useful insight when designing new therapeutic strategies in the treatment of cancer.
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12
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Yeo Y, Kim BK. Drug Carriers: Not an Innocent Delivery Man. AAPS JOURNAL 2015; 17:1096-104. [PMID: 26017163 DOI: 10.1208/s12248-015-9789-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 05/12/2015] [Indexed: 01/11/2023]
Abstract
Biomaterials used as drug carriers are often considered inactive and assumed to have no other roles than modifying pharmacokinetics and biodistribution of a drug. On the other hand, there are several examples in which the carrier materials show bioactivities in the body, which may have been underestimated or inadvertently ignored. This review highlights several examples where biomaterials used as drug carriers bring biological effects, known or newly discovered, and discusses their implications in development of new drug delivery systems.
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Affiliation(s)
- Yoon Yeo
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana, 47907, USA,
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13
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Cui M, Liu L, Guo N, Su R, Ma F. Preparation, cell compatibility and degradability of collagen-modified poly(lactic acid). Molecules 2015; 20:595-607. [PMID: 25569516 PMCID: PMC6272401 DOI: 10.3390/molecules20010595] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 12/18/2014] [Indexed: 11/16/2022] Open
Abstract
Poly(lactic acid) (PLA) was modified using collagen through a grafting method to improve its biocompatibility and degradability. The carboxylic group at the open end of PLA was transferred into the reactive acylchlorided group by a reaction with phosphorus pentachloride. Then, collagen-modified PLA (collagen-PLA) was prepared by the reaction between the reactive acylchlorided group and amino/hydroxyl groups on collagen. Subsequently, the structure of collagen-PLA was confirmed by Fourier transform infrared spectroscopy, fluorescein isothiocyanate-labeled fluorescence spectroscopy, X-ray photoelectron spectroscopy, and DSC analyses. Finally, some properties of collagen-PLA, such as hydrophilicity, cell compatibility and degradability were characterized. Results showed that collagen had been grafted onto the PLA with 5% graft ratio. Water contact angle and water absorption behavior tests indicated that the hydrophilicity of collagen-PLA was significantly higher than that of PLA. The cell compatibility of collagen-PLA with mouse embryonic fibroblasts (3T3) was also significantly better than PLA in terms of cell morphology and cell proliferation, and the degradability of PLA was also improved after introducing collagen. Results suggested that collagen-PLA was a promising candidate for biomedical applications.
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Affiliation(s)
- Miaomiao Cui
- School of Chemical & Pharmaceutical Engineering, Qilu University of Technology, 3501 Daxue Road, Jinan 250353, China.
| | - Leili Liu
- School of Chemical & Pharmaceutical Engineering, Qilu University of Technology, 3501 Daxue Road, Jinan 250353, China.
| | - Ning Guo
- School of Chemical & Pharmaceutical Engineering, Qilu University of Technology, 3501 Daxue Road, Jinan 250353, China.
| | - Ruixia Su
- School of Chemical & Pharmaceutical Engineering, Qilu University of Technology, 3501 Daxue Road, Jinan 250353, China.
| | - Feng Ma
- School of Chemical & Pharmaceutical Engineering, Qilu University of Technology, 3501 Daxue Road, Jinan 250353, China.
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Resorcinarene-centered amphiphilic star-block copolymers: Synthesis, micellization and controlled drug release. CHINESE JOURNAL OF POLYMER SCIENCE 2014. [DOI: 10.1007/s10118-014-1528-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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EL-Sukkary M, Ismail D, Rayes S, Saad M. Synthesis, characterization and surface properties of amino-glycopolysiloxane. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Fajardo AR, Guerry A, Britta EA, Nakamura CV, Muniz EC, Borsali R, Halila S. Sulfated glycosaminoglycan-based block copolymer: preparation of biocompatible chondroitin sulfate-b-poly(lactic acid) micelles. Biomacromolecules 2014; 15:2691-700. [PMID: 24857763 DOI: 10.1021/bm5005355] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Despite a growing interest in amphiphilic polysaccharide-based diblock copolymers as functional polymeric drug delivery nanosystems, biologically relevant sulfated glycosaminoglycan systems were not yet investigated. Here, we report the synthesis and the self-assembly properties in water of chondroitin sulfate-b-poly(lactic acid) (CS-b-PLA(n)). The CS-b-PLA(n) were synthesized using click-grafting onto method implying reducing-end alkynation of low-molecular weight depolymerized CS (M(w) = 5000 g·mol(-1)) and azide-terminated functionalization of PLAn (M(w) = 6500 g·mol(-1) (n = 46) and M(w) = 1700 g·mol(-1) (n = 20)). The diblock copolymer self-assembled in water giving rise to spherical micelles that were characterized in solution using dynamic/static light scattering and at dry state by TEM technique. In vitro assays on healthy cells showed that at high concentrations, up to 10 μg·mL(-1), CS-b-PLA(n) were noncytotoxic. Those preliminary studies are promising in the perspective to use them as biocompatible nanovehicles for anticancer drug delivery.
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Affiliation(s)
- André R Fajardo
- Centre de Recherches sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), Université Grenoble Alpes , BP 53, 38041 Grenoble Cedex 9, France
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17
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Du H, Yang X, Pang X, Zhai G. The synthesis, self-assembling, and biocompatibility of a novel O-carboxymethyl chitosan cholate decorated with glycyrrhetinic acid. Carbohydr Polym 2014; 111:753-61. [PMID: 25037412 DOI: 10.1016/j.carbpol.2014.04.095] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/27/2014] [Accepted: 04/28/2014] [Indexed: 11/16/2022]
Abstract
O-carboxymethyl chitosan (OCMC) was firstly decorated with cholic acid (CA) to acquire an amphiphilic polymer under alkaline condition. Then glycyrrhetinic acid (GA) was conjugated to the polymer via a succinate linker and finally treated with NaCO3 solution to obtain new conjugates for potential liver targeted delivery. These conjugates formed uniform aggregates with low critical aggregation concentrations (0.028-0.079 mg/mL) in PBS. The average diameter of cholic acid modified carboxymethyl chitosan (CMCA) aggregates (110-257 nm) decreased with the increase of CA substitution degree and became slightly larger after GA modification. Negative zeta potential (-15 mV) of GA decorated CMCA (GA-CMCA) revealed that the formation of negatively charged shells and spherical morphology was observed under transmission electron microscopy. Furthermore, hemolysis test, in vitro cytotoxicity assay and cellular uptake study all demonstrated the safety and feasibility of these conjugates as a promising carrier for liver targeted drug delivery.
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Affiliation(s)
- Hongliang Du
- Department of Pharmaceutics, College of Pharmacy, Shandong University, 44 Wenhua Xilu, Jinan 250012, China
| | - Xiaoye Yang
- Department of Pharmaceutics, College of Pharmacy, Shandong University, 44 Wenhua Xilu, Jinan 250012, China
| | - Xin Pang
- Department of Pharmaceutics, College of Pharmacy, Shandong University, 44 Wenhua Xilu, Jinan 250012, China
| | - Guangxi Zhai
- Department of Pharmaceutics, College of Pharmacy, Shandong University, 44 Wenhua Xilu, Jinan 250012, China.
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18
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Facile preparation of pH-sensitive micelles self-assembled from amphiphilic chondroitin sulfate-histamine conjugate for triggered intracellular drug release. Colloids Surf B Biointerfaces 2014; 115:331-9. [DOI: 10.1016/j.colsurfb.2013.12.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Revised: 11/28/2013] [Accepted: 12/11/2013] [Indexed: 12/20/2022]
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Liu J, Li J, Ma Y, Chen F, Zhao G. Synthesis, characterization, and aqueous self-assembly of octenylsuccinate Oat β-glucan. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:12683-12691. [PMID: 24313441 DOI: 10.1021/jf4035354] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Amphiphilic oat β-glucan derivatives carrying octenylsuccinic groups as hydrophobic moieties have been synthesized. Materials with a different degree of substitution (DS) and weight-average molecular weight (Mw) for oat β-glucan were prepared and characterized using elemental analysis, infrared (IR) spectroscopy, and high performance size exclusion chromatography (HPSEC). Dynamic light scattering (DLS), fluorescence spectroscopy, and transmission electron microscopy (TEM) revealed that octenylsuccinate oat β-glucan (OSG) can self-assemble into spherical micelles in water with an average size ranging from 175 to 600 nm. OSG micelles were negatively charged as indicated by ζ-potential measurement. The critical micelle concentration (CMC) of OSGs varied from 0.206 to 0.039 mg/mL, depending on the DS and Mw of the oat β-glucan. It was found that the presence of OSG micelles in aqueous solution could significantly enhance the solubility of curcumin by 880 fold. Thus, OSG might have great potential in applications as hydrophobic nutrient delivery carriers.
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Affiliation(s)
- Jia Liu
- College of Food Science, Southwest University , Chongqing 400715, P.R. China
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20
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Balme S, Rixte J, Boustta M, Vert M, Henn F. Complex impedance spectroscopy to investigate degradable chondroitin–poly(amino-serinate) complexes. Polym Degrad Stab 2013. [DOI: 10.1016/j.polymdegradstab.2013.08.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Hagiwara K, Kishimoto S, Ishihara M, Koyama Y, Mazda O, Sato T. In vivo gene transfer using pDNA/chitosan/chondroitin sulfate ternary complexes: influence of chondroitin sulfate on the stability of freeze-dried complexes and transgene expression in vivo. J Gene Med 2013; 15:83-92. [PMID: 23307647 DOI: 10.1002/jgm.2694] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/30/2012] [Accepted: 01/02/2013] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Chitosan has been investigated as a promising nonviral vector. However, several problems still remain, such as a relatively low transfection efficiency and instability under physiological conditions. We previously demonstrated that a chondroitin sulfate (CS) coating enhanced the transfection efficiency and physicochemical stability of plasmid DNA (pDNA)/chitosan complexes in vitro. In the present study, the effects of coating pDNA/chitosan complexes with CS on the stability in freeze-dry rehydration processes and gene expression in vivo were investigated. METHODS Freeze-drying storage at -20 °C, 4 °C, or room temperature, freezing storage at -20 °C, or liquid storage at 4 °C or room temperature, were examined for preservation conditions of pDNA/chitosan/CS ternary complexes by a gel retardation assay, measurements of sizes and zeta potentials, and a luciferase assay. Moreover, to determine the transfection efficiency of the ternary complexes in vivo, suicide gene therapy was carried out in Huh-7-implanted mice using herpes simplex virus thymidine kinase coding pDNA and ganciclovir. RESULTS The freeze-dried pDNA/chitosan/CS ternary complexes showed sufficient cell transfection ability in vitro and in vivo. In addition, ternary complexes were associated with a significant suppression of tumor growth and a histopathologically high anti-tumor effect by intratumoral injection to tumor-bearing mice. CONCLUSIONS The CS coating enhanced the preservation stability of the pDNA/chitosan complexes after freeze-drying-rehydration and their transgene expression in vivo.
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Affiliation(s)
- Kenji Hagiwara
- Department of Biosciences and Informatics, Keio University, Yokohama, Kanagawa, Japan
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22
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Pharmaceutically versatile sulfated polysaccharide based bionano platforms. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2013; 9:605-26. [DOI: 10.1016/j.nano.2012.12.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Accepted: 12/26/2012] [Indexed: 12/18/2022]
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23
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Polysaccharide-based micelles for drug delivery. Pharmaceutics 2013; 5:329-52. [PMID: 24300453 PMCID: PMC3834947 DOI: 10.3390/pharmaceutics5020329] [Citation(s) in RCA: 153] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 05/09/2013] [Accepted: 05/16/2013] [Indexed: 11/23/2022] Open
Abstract
Delivery of hydrophobic molecules and proteins has been an issue due to poor bioavailability following administration. Thus, micelle carrier systems are being investigated to improve drug solubility and stability. Due to problems with toxicity and immunogenicity, natural polysaccharides are being explored as substitutes for synthetic polymers in the development of new micelle systems. By grafting hydrophobic moieties to the polysaccharide backbone, self-assembled micelles can be readily formed in aqueous solution. Many polysaccharides also possess inherent bioactivity that can facilitate mucoadhesion, enhanced targeting of specific tissues, and a reduction in the inflammatory response. Furthermore, the hydrophilic nature of some polysaccharides can be exploited to enhance circulatory stability. This review will highlight the advantages of polysaccharide use in the development of drug delivery systems and will provide an overview of the polysaccharide-based micelles that have been developed to date.
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Abstract
Polysaccharides have been used in various biomedical applications due to availability and biocompatibility. In particular, polysaccharides have gained increasing interest in the development of functional nanomedicines as a component to provide a stealth function, improve interactions with target tissues or enable environment-responsive drug release. This review discusses recent advances in nanomedicine engineering based on polysaccharides with a specific emphasis on the rationale, applications and the remaining challenges.
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25
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Yang YQ, Lin WJ, Zhao B, Wen XF, Guo XD, Zhang LJ. Synthesis and physicochemical characterization of amphiphilic triblock copolymer brush containing pH-sensitive linkage for oral drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8251-8259. [PMID: 22568600 DOI: 10.1021/la301099q] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A novel and well-defined pH-sensitive amphiphilic triblock copolymer brush poly(lactide)-b-poly(methacrylic acid)-b-poly(poly(ethylene glycol) methyl ether monomethacrylate) (PLA-b-PMAA-b-PPEGMA) and its self-assembled micelles were developed for oral administration of hydrophobic drugs. The copolymer and its precursors were synthesized by the combination of activators regenerated by electron transfer atom transfer radical polymerization (ARGET ATRP) and ring-opening polymerization (ROP) techniques. The molecular structures and characteristics were confirmed by GPC, (1)H NMR, and FT-IR. The critical micelle concentration (CMC) values of PLA-b-PMAA-b-PPEGMA in aqueous medium varied from 1.4 to 2.6 mg/L, and the partition equilibrium constant (K(v)) of pyrene in micellar solutions ranged from 2.873 × 10(5) to 3.312 × 10(5). The average sizes of the self-assembled blank and drug-loaded micelles were 140-250 nm determined by DLS in aqueous solution. The morphology of the micelles was found to be spherical by SEM. Nifedipine (NFD), a poorly water-soluble drug, was selected as the model drug and wrapped into the core of micelles via dialysis method. The in vitro release behavior of NFD from the micelles was pH-dependent. In simulated gastric fluid (SGF, pH 1.2), the cumulative release percent of NFD was relative low, while in simulated intestinal fluid (SIF, pH 7.4), more than 96% was released within 24 h. All the results showed that the pH-sensitive PLA-b-PMAA-b-PPEGMA micelle may be a prospective candidate as oral drug delivery carrier for hydrophobic drugs with controlled release behavior.
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Affiliation(s)
- You Qiang Yang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P R China
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26
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Synthesis of In situ chondroitin sulfate hydrogel through phosphine-mediated Michael type addition reaction. Macromol Res 2012. [DOI: 10.1007/s13233-012-0138-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Zhang K, Wang Y, Zhu W, Li X, Shen Z. Synthesis, characterization, and micellization of PCL-g-PEG copolymers by combination of ROP and “Click” chemistry via “Graft onto” method. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.25979] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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28
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Zhu W, Wang Y, Zhang Q, Shen Z. Amphiphilic PEG‐grafted poly(ester‐carbonate)s: Synthesis and diverse nanostructures in water. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24944] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Weipu Zhu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Ying Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Qiujin Zhang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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29
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Zhang H, Cai G, Tang G, Wang L, Jiang H. Synthesis, self-assembly, and cytotoxicity of well-defined trimethylated chitosan-O-poly(ε-caprolactone): effect of chitosan molecular weight. J Biomed Mater Res B Appl Biomater 2011; 98:290-9. [PMID: 21604366 DOI: 10.1002/jbm.b.31851] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Revised: 01/11/2011] [Accepted: 02/10/2011] [Indexed: 11/08/2022]
Abstract
Structurally well-defined trimethylated chitosan-O-poly(ε-caprolactone) (TMC-O-PCL) was synthesized under mild homogeneous conditions, using sodium dodecyl sulfate-dimethylated chitosan complex (SDC) as an organosoluble intermediate. The effect of chitosan molecular weight (MW) on the preparation, organosolubility, self-assembly, and cytotoxicity of the copolymers was investigated. The copolymers with low-MW chitosan backbone had improved solubility in common organic solvents. Spherical micelles with average diameter of 25-55 nm and uniform morphology were formed through self-assembly of TMC-O-PCL in pH 7.4 PBS. When trimethylation degree of the copolymers was above 44%, the micelles could remain stable in neutral aqueous media. The critical aggregation concentration of TMC-O-PCL slightly increased with a decrease in the MW of chitosan backbone. The cytotoxicity of the cationic micelles could be suppressed by increasing PCL grafting levels, reducing trimethylation degree, and MW of the chitosan backbone.
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Affiliation(s)
- Haiwen Zhang
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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30
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Copolymer of star poly(epsilon-caprolactone) and polyglycidols as potential carriers for hydrophobic drugs. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.1952] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Lim JJ, Hammoudi TM, Bratt-Leal AM, Hamilton SK, Kepple KL, Bloodworth NC, McDevitt TC, Temenoff JS. Development of nano- and microscale chondroitin sulfate particles for controlled growth factor delivery. Acta Biomater 2011; 7:986-95. [PMID: 20965281 DOI: 10.1016/j.actbio.2010.10.009] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 10/13/2010] [Accepted: 10/14/2010] [Indexed: 01/08/2023]
Abstract
Size scale plays an important role in the release properties and cellular presentation of drug delivery vehicles. Because negatively charged chondroitin sulfate (CS) is capable of electrostatically sequestering positively charged growth factors, CS-derived nanoscale micelles and microscale spheroids were synthesized as potential growth factor carriers to enhance differentiation of stem cells. Particles were characterized for morphology, size distribution, surface charge and cytocompatibility, as well as release of transforming growth factor-β1 (TGF-β1) and tumor necrosis factor-α (TNF-α). CS micelles were spherical and negatively charged with a bimodal distribution of 324.1±8.5 and 73.2±4.4 nm diameters, and CS microspheres possessed a rounded morphology and a diameter of 4.3±0.93 μm. Positively charged TGF-β1 demonstrated minimal release after loading in CS microspheres, while negatively charged TNF-α exhibited substantial release over the first 15 h, suggesting that TGF-β1 electrostatically complexed with CS. The micelles and microparticles were found to be cytocompatible at moderate concentrations with marrow stromal cell monolayers and within embryonic stem cell embryoid bodies. These synthesis techniques, which allow the formation of CS-based carriers over a variety of nano- and microscale sizes, offer versatility for tailored release of positively charged growth factors and controlled CS presentation for a variety of stem cell-based applications in tissue engineering and regenerative medicine.
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32
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Li WM, Liu DM, Chen SY. Amphiphilically-modified gelatin nanoparticles: Self-assembly behavior, controlled biodegradability, and rapid cellular uptake for intracellular drug delivery. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10188a] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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33
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Jung B, Baek CY, Yang JY, Park JH, Kim JD. Anticancer therapeutic self-aggregates of sphingolipid metabolite-grafted poly(amino acid)-derivative and their enhanced intracellular delivery. J IND ENG CHEM 2010. [DOI: 10.1016/j.jiec.2010.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Synthesis and Self-Assembly Behavior of Comb-Like Surfactant Polymethyl Methacrylate-g-Methoxy Polyethylene Glycol. J SURFACTANTS DETERG 2010. [DOI: 10.1007/s11743-010-1235-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Park W, Park SJ, Na K. Potential of self-organizing nanogel with acetylated chondroitin sulfate as an anti-cancer drug carrier. Colloids Surf B Biointerfaces 2010; 79:501-8. [DOI: 10.1016/j.colsurfb.2010.05.025] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2009] [Revised: 05/14/2010] [Accepted: 05/14/2010] [Indexed: 11/16/2022]
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36
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Chang KY, Hung LH, Chu IM, Ko CS, Lee YD. The application of type II collagen and chondroitin sulfate grafted PCL porous scaffold in cartilage tissue engineering. J Biomed Mater Res A 2010; 92:712-23. [PMID: 19274722 DOI: 10.1002/jbm.a.32198] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study investigates a poly(epsilon-caprolactone)-graft-type II collagen-graft-chondroitin sulfate (PCL-g-COL-g-CS) biomaterial as a scaffold for cartilage tissue engineering. Biodegradable polyester, PCL, was utilized to fabricate three-dimensional (3D) porous scaffolds by particulate leaching. The PCL scaffold was then surface modified by chemical bonding of 1,6-hexanediamine and the grafting of a bioactive polymer layer of COL and CS with the help of 1-ethyl-3-(3-dimethyl- aminopropyl) carbodiimide (EDC)/N-hydroxysuccinimide (NHS) on the modified PCL surface to produce PCL-g-COL and PCL-g-COL-g-CS, respectively. The characteristics of these modified and grafted matrices were examined by ESCA, aminolysis, collagen and CS assay, porosity and water-binding capacity. Grafted COL and CS markedly increased water-binding capacity, and promoted the spreading and growth of chondrocytes. During a 4-week culture period, PCL-g-COL and PCL-g-COL-g-CS matrices both provided more cell proliferation, as determined by measuring the DNA assay. Additionally, a larger amount of secreted collagen and glycosaminoglycans (GAGs) appeared in the PCL-g-COL-g-CS matrices than in the control (PCL) as indicated by the histochemical sections via Hematoxylin and eosin (H&E) stain, Masson trichrome stain and Safranin-O stain. The chondrocytes were induced to function normally; the cell phenotype was maintained, and the GAGs and collagen in the PCL-g-COL-g-CS scaffold were secreted in vitro. These results serve as a basis for future studies of the fabrication process and reveal the potential biocompatibility of the biomimetic matrix for regenerating articular cartilage or other organs.
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Affiliation(s)
- Kuo-Yung Chang
- Department of Chemical Engineering, National Tsing Hua University 101, Section 2, Kuang Fu Road, Hsin Chu, Taiwan 300, Republic of China
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37
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Abstract
This review presents an overview of polysaccharide-conjugated synthetic polymers and their use in tissue-engineered scaffolds and drug-delivery applications. This topic will be divided into four categories: (1) polymeric materials modified with non-mammalian polysaccharides such as alginate, chitin, and dextran; (2) polymers modified with mammalian polysaccharides such as hyaluronan, chondroitin sulfate, and heparin; (3) multi-polysaccharide-derivatized polymer conjugate systems; and (4) polymers containing polysaccharide-mimetic molecules. Each section will discuss relevant conjugation techniques, analysis, and the impact of these materials as micelles, particles, or hydrogels used in in-vitro and in-vivo biomaterial applications.
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Affiliation(s)
- Aaron D. Baldwin
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
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38
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Mao J, Gan Z. Amphiphilic PEG-co
-PGL-g
-PCL Copolymer Brushes: Synthesis, Micellization and Controlled Drug Delivery. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900274] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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39
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Zhang X, Zhu X, Ke F, Ye L, Chen EQ, Zhang AY, Feng ZG. Preparation and self-assembly of amphiphilic triblock copolymers with polyrotaxane as a middle block and their application as carrier for the controlled release of Amphotericin B. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.07.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Han SC, He WD, Li J, Li LY, Sun XL. pH-Responsive Self-assembled Nanoparticles of Simulated P(AA- co-SA)- g-PEG for Drug Release. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2009. [DOI: 10.1080/10601320903078263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Mao J, Gan Z. The Influence of Pendant Hydroxyl Groups on Enzymatic Degradation and Drug Delivery of Amphiphilic Poly[glycidol-block
-(ε
-caprolactone)] Copolymers. Macromol Biosci 2009; 9:1080-9. [DOI: 10.1002/mabi.200900104] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Nagahama K, Imai Y, Nakayama T, Ohmura J, Ouchi T, Ohya Y. Thermo-sensitive sol–gel transition of poly(depsipeptide-co-lactide)-g-PEG copolymers in aqueous solution. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.05.045] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Cai G, Jiang H, Chen Z, Tu K, Wang L, Zhu K. Synthesis, characterization and self-assemble behavior of chitosan-O-poly(ε-caprolactone). Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2009.03.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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45
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Wang Y, Tan Y, Huang X, Che Y, Du X. Synthesis of biodegradable amphiphilic thermo-responsive multiblock polycarbonate and its self-aggregation behavior in aqueous solution. J Appl Polym Sci 2009. [DOI: 10.1002/app.29512] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Ring-opening polymerization of epsilon-caprolactone initiated by the antitumor agent doxifluridine. Acta Biomater 2009; 5:1075-81. [PMID: 19101214 DOI: 10.1016/j.actbio.2008.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2008] [Revised: 11/17/2008] [Accepted: 11/20/2008] [Indexed: 11/20/2022]
Abstract
A novel 5'-deoxy-5-fluorouridine-poly(epsilon-caprolactone) (5'-DFUR-PCL) polymer was synthesized from the antitumor agent doxifluridine (5'-DFUR) by the ring-opening polymerization of epsilon-caprolactone (epsilon-CL) using Sn(II) 2-ethylhexanoate (Sn(Oct)2) as the catalyst. The structure and molecular weight of these polymers were further elucidated by proton nuclear magnetic resonance and gel-permeation chromatography. The results revealed that the molecular weights of the 5'-DFUR-PCL polymers were close to the theoretical values calculated from the epsilon-CL to 5'-DFUR molar ratios and their recovery yields were as high as 90%. Two mechanisms of epsilon-CL polymerization initiated by Sn(Oct)2 were proposed involving either a single or two 5'-DFUR molecules. This study has provided an efficient method for the preparation of 5'-DFUR-PCL polymers. These novel 5'-DFUR-PCL polymers can be applied as drugs on carriers without the need for the coating or grafting processes associated with drugs in drug delivery and have great potential for cancer therapy.
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47
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Chang KY, Lin CC, Ho GH, Huang YP, Lee YD. Synthesis and self-assembly of comb-like amphiphilic Doxifluridine–poly(ɛ-caprolactone)-graft-poly(γ-glutamic acid) copolymer. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.01.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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48
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Qi H, Liu D, Zhong C. Cooperative Aggregation of Amphiphilic Comblike Copolymer/Linear Homopolymer Blends in Selective Solvents: A Density Functional Theory Study. J Phys Chem B 2008; 112:16409-14. [DOI: 10.1021/jp806664f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hongfeng Qi
- Laboratory of Computational Chemistry, Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dahuan Liu
- Laboratory of Computational Chemistry, Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chongli Zhong
- Laboratory of Computational Chemistry, Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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50
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Qi H, Zhong C. Density Functional Theory Studies on the Microphase Separation of Amphiphilic Comb Copolymers in a Selective Solvent. J Phys Chem B 2008; 112:10841-7. [DOI: 10.1021/jp0774950] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hongfeng Qi
- Department of Chemical Engineering and Key Laboratory of Bioprocess of Beijing, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chongli Zhong
- Department of Chemical Engineering and Key Laboratory of Bioprocess of Beijing, Beijing University of Chemical Technology, Beijing 100029, China
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