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Lu A, Li S. Polysaccharides as a Hydrophilic Building Block of Amphiphilic Block Copolymers for the Conception of Nanocarriers. Pharmaceutics 2024; 16:467. [PMID: 38675130 PMCID: PMC11054713 DOI: 10.3390/pharmaceutics16040467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
Polysaccharides are gaining increasing attention for their relevance in the production of sustainable materials. In the domain of biomaterials, polysaccharides play an important role as hydrophilic components in the design of amphiphilic block copolymers for the development of drug delivery systems, in particular nanocarriers due to their outstanding biocompatibility, biodegradability, and structural versatility. The presence of a reducing end in polysaccharide chains allows for the synthesis of polysaccharide-based block copolymers. Compared with polysaccharide-based graft copolymers, the structure of block copolymers can be more precisely controlled. In this review, the synthesis methods of polysaccharide-based amphiphilic block copolymers are discussed in detail, taking into consideration the structural characteristics of polysaccharides. Various synthetic approaches, including reductive amination, oxime ligation, and other chain-end modification reactions, are explored. This review also focuses on the advantages of polysaccharides as hydrophilic blocks in polymeric nanocarriers. The structure and unique properties of different polysaccharides such as cellulose, hyaluronic acid, chitosan, alginate, and dextran are described along with examples of their applications as hydrophilic segments in the synthesis of amphiphilic copolymers to construct nanocarriers for sustained drug delivery.
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Affiliation(s)
- Aijing Lu
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & NMPA Research Base of Regulatory Science for Medical Devices, Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu 610064, China;
| | - Suming Li
- Institut Européen des Membranes, UMR CNRS 5635, Université de Montpellier, 34095 Montpellier, France
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2
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Efficient Delivery of Curcumin by Alginate Oligosaccharide Coated Aminated Mesoporous Silica Nanoparticles and In Vitro Anticancer Activity against Colon Cancer Cells. Pharmaceutics 2022; 14:pharmaceutics14061166. [PMID: 35745738 PMCID: PMC9229531 DOI: 10.3390/pharmaceutics14061166] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 02/01/2023] Open
Abstract
We designed and synthesized aminated mesoporous silica (MSN-NH2), and functionally grafted alginate oligosaccharides (AOS) on its surface to get MSN-NH2-AOS nanoparticles as a delivery vehicle for the fat-soluble model drug curcumin (Cur). Dynamic light scattering, thermogravimetric analysis, and X-ray photoelectron spectroscopy were used to characterize the structure and performance of MSN-NH2-AOS. The nano-MSN-NH2-AOS preparation process was optimized, and the drug loading and encapsulation efficiencies of nano-MSN-NH2-AOS were investigated. The encapsulation efficiency of the MSN-NH2-Cur-AOS nanoparticles was up to 91.24 ± 1.23%. The pH-sensitive AOS coating made the total release rate of Cur only 28.9 ± 1.6% under neutral conditions and 67.5 ± 1% under acidic conditions. According to the results of in vitro anti-tumor studies conducted by MTT and cellular uptake assays, the MSN-NH2-Cur-AOS nanoparticles were more easily absorbed by colon cancer cells than free Cur, achieving a high tumor cell targeting efficiency. Moreover, when the concentration of Cur reached 50 μg/mL, MSN-NH2-Cur-AOS nanoparticles showed strong cytotoxicity against tumor cells, indicating that MSN-NH2-AOS might be a promising tool as a novel fat-soluble anticancer drug carrier.
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3
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Lin Z, Cheng X. Synthesis and properties of pH sensitive carboxymethylated hydroxypropyl chitosan nanocarriers for delivery of doxorubicin. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1920332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zhu Lin
- School of Chemistry and Chemical Engineering, Key Laboratory Environment-friendly Polymer Materials of Anhui Province, Anhui University, Hefei, China
| | - Xiaomin Cheng
- School of Chemistry and Chemical Engineering, Key Laboratory Environment-friendly Polymer Materials of Anhui Province, Anhui University, Hefei, China
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4
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Chitosan grafted/cross-linked with biodegradable polymers: A review. Int J Biol Macromol 2021; 178:325-343. [PMID: 33652051 DOI: 10.1016/j.ijbiomac.2021.02.200] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/29/2022]
Abstract
Public perception of polymers has been drastically changed with the improved plastic management at the end of their life. However, it is widely recognised the need of developing biodegradable polymers, as an alternative to traditional petrochemical polymers. Chitosan (CH), a biodegradable biopolymer with excellent physiological and structural properties, together with its immunostimulatory and antibacterial activity, is a good candidate to replace other polymers, mainly in biomedical applications. However, CH has also several drawbacks, which can be solved by chemical modifications to improve some of its characteristics such as solubility, biological activity, and mechanical properties. Many chemical modifications have been studied in the last decade to improve the properties of CH. This review focussed on a critical analysis of the state of the art of chemical modifications by cross-linking and graft polymerization, between CH or CH derivatives and other biodegradable polymers (polysaccharides or proteins, obtained from microorganisms, synthetized from biomonomers, or from petrochemical products). Both techniques offer the option of including a wide variety of functional groups into the CH chain. Thus, enhanced and new properties can be obtained in accordance with the requirements for different applications, such as the release of drugs, the improvement of antimicrobial properties of fabrics, the removal of dyes, or as scaffolds to develop bone tissues.
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Padhi S, Behera A. Nanotechnology Based Targeting Strategies for the Delivery of Camptothecin. SUSTAINABLE AGRICULTURE REVIEWS 2020. [DOI: 10.1007/978-3-030-41842-7_7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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6
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Cirillo G, Vittorio O, Kunhardt D, Valli E, Voli F, Farfalla A, Curcio M, Spizzirri UG, Hampel S. Combining Carbon Nanotubes and Chitosan for the Vectorization of Methotrexate to Lung Cancer Cells. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2889. [PMID: 31500165 PMCID: PMC6766185 DOI: 10.3390/ma12182889] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/02/2019] [Accepted: 09/04/2019] [Indexed: 12/11/2022]
Abstract
A hybrid system composed of multi-walled carbon nanotubes coated with chitosan was proposed as a pH-responsive carrier for the vectorization of methotrexate to lung cancer. The effective coating of the carbon nanostructure by chitosan, quantified (20% by weight) by thermogravimetric analysis, was assessed by combined scanning and transmission electron microscopy, and X-ray photoelectron spectroscopy (N1s signal), respectively. Furthermore, Raman spectroscopy was used to characterize the interaction between polysaccharide and carbon counterparts. Methotrexate was physically loaded onto the nanohybrid and the release profiles showed a pH-responsive behavior with higher and faster release in acidic (pH 5.0) vs. neutral (pH 7.4) environments. Empty nanoparticles were found to be highly biocompatible in either healthy (MRC-5) or cancerous (H1299) cells, with the nanocarrier being effective in reducing the drug toxicity on MRC-5 while enhancing the anticancer activity on H1299.
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Affiliation(s)
- Giuseppe Cirillo
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany.
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Orazio Vittorio
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW 2031, Australia.
- ARC Centre of Excellence for Convergent BioNano Science and Technology, Australian Centre for NanoMedicine, UNSW Sydney, NSW 2052, Australia.
- School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, NSW 2052, Australia.
| | - David Kunhardt
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany.
| | - Emanuele Valli
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW 2031, Australia.
- School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, NSW 2052, Australia.
| | - Florida Voli
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW 2031, Australia.
| | - Annafranca Farfalla
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Manuela Curcio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Umile Gianfranco Spizzirri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany.
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Sun J, Wang Z, Cao A, Sheng R. Synthesis of crosslinkable diblock terpolymers PDPA-b-P(NMS-co-OEG) and preparation of shell-crosslinked pH/redox-dual responsive micelles as smart nanomaterials. RSC Adv 2019; 9:34535-34546. [PMID: 35529956 PMCID: PMC9073896 DOI: 10.1039/c9ra05082e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 09/25/2019] [Indexed: 12/16/2022] Open
Abstract
Crosslinked polymer nanomaterials have attracted great attention due to their stability and highly controllable drug delivery; herein, a series of well-defined amphiphilic PDPA-b-P(NMS-co-OEG) diblock terpolymers (P1–P3) were designed and prepared via RAFT polymerization and were self-assembled into non-cross-linked (NCL) nanomicelles, which were further prepared into shell-cross-linked (SCL) micelles via cystamine-based in situ shell cross-linking. Using P3 as an optimized polymer, SCL-P3 micelles were prepared, which demonstrated remarkable pH/redox-dual responsive behaviour. For drug delivery, camptothecin (CPT)-loaded SCL-P3 micelles were prepared and showed much higher CPT-loading capability than their NCL-P3 counterparts. Notably, the SCL-P3 micelles showed good synergistic pH/redox-dual responsive CPT release properties, making them potential “smart” nanocarriers for drug delivery. A series of well-defined amphiphilic PDPA-b-P(NMS-co-OEG) diblock terpolymers were prepared via RAFT polymerization and self-assembled into non-cross-linked nanomicelles, and then shell-cross-linked micelles via cystamine-based in situ shell cross-linking.![]()
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Affiliation(s)
- Jingjing Sun
- Department of Radiology
- Shanghai Tenth People's Hospital
- School of Medicine
- Tongji University
- Shanghai 200072
| | - Zhao Wang
- Key Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- CAS
- Shanghai
- China
| | - Amin Cao
- Key Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- CAS
- Shanghai
- China
| | - Ruilong Sheng
- Department of Radiology
- Shanghai Tenth People's Hospital
- School of Medicine
- Tongji University
- Shanghai 200072
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8
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Xiao Q, Song F, Nie WC, Wang XL, Wang YZ. Self-complementary hydrogen-bond interactions of guanosine: a hub for constructing supra-amphiphilic polymers with controlled molecular structure and aggregate morphology. SOFT MATTER 2018; 15:102-108. [PMID: 30500047 DOI: 10.1039/c8sm02172d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A supra-amphiphilic polymer (SAP) with controlled molecular structures is constructed, in this work, via self-complementary hydrogen bonding of guanosine groups between a hydrophilic block, poly(N-isopropylacrylamide), and a hydrophobic block, poly(ε-caprolactone). By simply changing the mixing ratio of the guanosine-capped hydrophilic and hydrophobic blocks, a series of SAPs with tailored nanostructures are constructed, which can further self-assemble into different nano-aggregates in solution, including spheres, vesicles and large vesicle micelles. The thermo-induced phase transition of the hydrophilic block induces the fusion and aggregation of the nanoparticles into irregular particles upon heating, which further transform to large compound vesicles after cooling.
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Affiliation(s)
- Qian Xiao
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Fei Song
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Wu-Cheng Nie
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Xiu-Li Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Yu-Zhong Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
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9
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Nie WC, Song F, Xiao Q, Liu JJ, Wang XH, Zhou JL, Chen SC, Wang XL, Wang YZ. Orthogonal construction of dual dynamic covalent linkages toward an “AND” logic-gate acid-/salt-responsive block copolymer. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Dramou P, Fizir M, Taleb A, Itatahine A, Dahiru NS, Mehdi YA, Wei L, Zhang J, He H. Folic acid-conjugated chitosan oligosaccharide-magnetic halloysite nanotubes as a delivery system for camptothecin. Carbohydr Polym 2018; 197:117-127. [DOI: 10.1016/j.carbpol.2018.05.071] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/15/2018] [Accepted: 05/24/2018] [Indexed: 12/15/2022]
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11
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Self-aggregates of 3,6-O,O’-dimyristoylchitosan derivative are effective in enhancing the solubility and intestinal permeability of camptothecin. Carbohydr Polym 2017; 177:178-186. [DOI: 10.1016/j.carbpol.2017.08.114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/07/2017] [Accepted: 08/27/2017] [Indexed: 01/27/2023]
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12
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Krishnan P, Rajan M, Kumari S, Sakinah S, Priya SP, Amira F, Danjuma L, Pooi Ling M, Fakurazi S, Arulselvan P, Higuchi A, Arumugam R, Alarfaj AA, Munusamy MA, Hamat RA, Benelli G, Murugan K, Kumar SS. Efficiency of newly formulated camptothecin with β-cyclodextrin-EDTA-Fe 3O 4 nanoparticle-conjugated nanocarriers as an anti-colon cancer (HT29) drug. Sci Rep 2017; 7:10962. [PMID: 28887536 PMCID: PMC5591276 DOI: 10.1038/s41598-017-09140-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 07/24/2017] [Indexed: 11/25/2022] Open
Abstract
Camptothecin (CPT) is an anti-cancer drug that effectively treats various cancers, including colon cancer. However, poor solubility and other drawbacks have restricted its chemotherapeutic potential. To overcome these restrictions, CPT was encapsulated in CEF (cyclodextrin-EDTA-FE3O4), a composite nanoparticle of magnetic iron oxide (Fe3O4), and β-cyclodextrin was cross-linked with ethylenediaminetetraacetic acid (EDTA). This formulation improved CPT’s solubility and bioavailability for cancer cells. The use of magnetically responsive anti-cancer formulation is highly advantageous in cancer chemotherapy. The chemical characterisation of CPT-CEF was studied here. The ability of this nano-compound to induce apoptosis in HT29 colon cancer cells and A549 lung cancer cells was evaluated. The dose-dependent cytotoxicity of CPT-CEF was shown using MTT. Propidium iodide and Annexin V staining, mitochondrial membrane depolarisation (JC-1 dye), and caspase-3 activity were assayed to detect apoptosis in CPT-CEF-treated cancer cells. Cell cycle analysis also showed G1 phase arrest, which indicated possible synergistic effects of the nano-carrier. These study results show that CPT-CEF causes a dose-dependent cell viability reduction in HT29 and A549 cells and induces apoptosis in colon cancer cells via caspase-3 activation. These data strongly suggest that CPT could be used as a major nanocarrier for CPT to effectively treat colon cancer.
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Affiliation(s)
- Poorani Krishnan
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - Mariappan Rajan
- Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India.
| | - Sharmilah Kumari
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - S Sakinah
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - Sivan Padma Priya
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - Fatin Amira
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - Lawal Danjuma
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - Mok Pooi Ling
- Department of Biomedical Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.,Genetics and Regenerative Medicine Research Centre, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Sharida Fakurazi
- Laboratory of Vaccines and Immunotherapeutic, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - Palanisamy Arulselvan
- Laboratory of Vaccines and Immunotherapeutic, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia.,Muthayammal Centre for Advanced Research, Muthayammal College of Arts and Science, Rasipuram, Namakkal, Tamilnadu, 637408, India
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University, Jhong-li, Taoyuan, 32001, Taiwan.,Department of Reproduction, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan.,Department of Botany and Microbiology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Ramitha Arumugam
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Abdullah A Alarfaj
- Department of Botany and Microbiology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Murugan A Munusamy
- Department of Botany and Microbiology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Rukman Awang Hamat
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124, Pisa, Italy.,The BioRobotics Institute, Scuola Superiore Sant'Anna, viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Kadarkarai Murugan
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - S Suresh Kumar
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, 43400 UPM, Serdang Selangor, Malaysia. .,Department of Biomedical Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
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13
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Tiew SX, Misran M. Encapsulation of salicylic acid in acylated low molecular weight chitosan for sustained release topical application. J Appl Polym Sci 2017. [DOI: 10.1002/app.45273] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shu Xian Tiew
- Department of Chemistry; Faculty of Science, University of Malaya; 50603 Kuala Lumpur Malaysia
- International Halal Research University of Malaya (IHRUM), Academy of Islamic Studies, University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Misni Misran
- Department of Chemistry; Faculty of Science, University of Malaya; 50603 Kuala Lumpur Malaysia
- International Halal Research University of Malaya (IHRUM), Academy of Islamic Studies, University of Malaya; 50603 Kuala Lumpur Malaysia
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14
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Zhang L, Pan J, Dong S, Li Z. The application of polysaccharide-based nanogels in peptides/proteins and anticancer drugs delivery. J Drug Target 2017; 25:673-684. [DOI: 10.1080/1061186x.2017.1326123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lin Zhang
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
| | - Jifei Pan
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
| | - Shibo Dong
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
- Shandong Provincial Engineering Research Center for Sustained-release Preparation of Chemical Drugs, Jinan, PR China
| | - Zhaoming Li
- Department of Pharmaceutics, Shandong Academy of Pharmaceutical Sciences, Jinan, PR China
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15
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Botella P, Rivero-Buceta E. Safe approaches for camptothecin delivery: Structural analogues and nanomedicines. J Control Release 2016; 247:28-54. [PMID: 28027948 DOI: 10.1016/j.jconrel.2016.12.023] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 12/20/2016] [Indexed: 12/19/2022]
Abstract
Twenty-(S)-camptothecin is a strongly cytotoxic molecule with excellent antitumor activity over a wide spectrum of human cancers. However, the direct formulation is limited by its poor water solubility, low plasmatic stability and severe toxicity, which currently limits its clinical use. As a consequence, two strategies have been developed in order to achieve safe and efficient delivery of camptothecin to target cells: structural analogues and nanomedicines. In this review, we summarize recent advances in the design, synthesis and development of camptothecin molecular derivatives and supramolecular vehicles, following a systematic classification according to structure-activity relationships (structural analogues) or chemical nature (nanomedicines). A series of organic, inorganic and hybrid materials are presented as nanoplatforms to overcome camptothecin restrictions in administration, biodistribution, pharmacokinetics and toxicity. Nanocarriers which respond to a variety of stimuli endogenously (e.g., pH, redox potential, enzyme activity) or exogenously (e.g., magnetic field, light, temperature, ultrasound) seem the best positioned therapeutic materials for optimal spatial and temporal control over drug release. The main goal of this review is to be used as a source of relevant literature for others interested in the field of camptothecin-based therapeutics. To this end, final remarks on the most important formulations currently under clinical trial are provided.
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Affiliation(s)
- Pablo Botella
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain.
| | - Eva Rivero-Buceta
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
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16
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Safir I, Chami M, Buergi T, Nardin C. Investigation of the thin film crystallization of a DNA copolymer hybrid composed of chitosan. POLYM INT 2016. [DOI: 10.1002/pi.5165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ilyès Safir
- University of Geneva, Faculty of Sciences; Department of Inorganic and Analytical Chemistry; 30 quai Ernest Ansermet 1211 Geneva 4 Switzerland
| | - Mohamed Chami
- Centre for Cellular Imaging and NanoAnalytics (C-CINA); Biozentrum, University of Basel; Mattenstrasse 26 4058 Basel Switzerland
| | - Thomas Buergi
- University of Geneva, Faculty of Sciences; Department of Physical Chemistry; 30 quai Ernest Ansermet 1211 Geneva 4 Switzerland
| | - Corinne Nardin
- University of Geneva, Faculty of Sciences; Department of Inorganic and Analytical Chemistry; 30 quai Ernest Ansermet 1211 Geneva 4 Switzerland
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17
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Rad MS, Mohajeri SA. Simultaneously Load and Extended Release of Betamethasone and Ciprofloxacin from Vitamin E-Loaded Silicone-Based Soft Contact Lenses. Curr Eye Res 2016; 41:1185-91. [DOI: 10.3109/02713683.2015.1107591] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Maryam Shayani Rad
- Student Research Committee (SRC), Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ahmad Mohajeri
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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18
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Yan J, Wu T, Ding Z, Li X. Preparation and characterization of carbon nanotubes/chitosan composite foam with enhanced elastic property. Carbohydr Polym 2016; 136:1288-96. [DOI: 10.1016/j.carbpol.2015.10.049] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 09/29/2015] [Accepted: 10/14/2015] [Indexed: 11/27/2022]
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Goonoo N, Jeetah R, Bhaw-Luximon A, Jhurry D. Polydioxanone-based bio-materials for tissue engineering and drug/gene delivery applications. Eur J Pharm Biopharm 2015; 97:371-91. [PMID: 26614558 DOI: 10.1016/j.ejpb.2015.05.024] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 05/27/2015] [Accepted: 05/28/2015] [Indexed: 11/22/2022]
Abstract
Since the commercialization of polydioxanone (PDX) as a biodegradable monofilament suture by Ethicon in 1981, the polymer has received only limited interest until recently. The limitations of polylactide-co-glycolide (PLGA) coupled with the growing need for materials with enhanced features and the advent of new fabrication techniques such as electrospinning have revived interest for PDX in medical devices, tissue engineering and drug delivery applications. Electrospun PDX mats show comparable mechanical properties as the major structural components of native vascular extracellular matrix (ECM) i.e. collagen and elastin. In addition, PDX's unique shape memory property provides rebound and kink resistance when fabricated into vascular conduits. The synthesis of methyl dioxanone (MeDX) monomer and copolymers of dioxanone (DX) and MeDX have opened up new perspectives for poly(ester-ether)s, enabling the design of the next generation of tissue engineering scaffolds for application in regenerating such tissues as arteries, peripheral nerve and bone. Tailoring of polymer properties and their formulation as nanoparticles, nanomicelles or nanofibers have brought along important developments in the area of controlled drug or gene delivery. This paper reviews the synthesis of PDX and its copolymers and provides for the first time an exhaustive account of its applications in the (bio)medical field with focus on tissue engineering and drug/gene delivery.
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Affiliation(s)
- Nowsheen Goonoo
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Mauritius
| | - Roubeena Jeetah
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Mauritius
| | - Archana Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Mauritius
| | - Dhanjay Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Mauritius.
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20
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Qin SY, Peng MY, Rong L, Li B, Wang SB, Cheng SX, Zhuo RX, Zhang XZ. Self-defensive nano-assemblies from camptothecin-based antitumor drugs. Regen Biomater 2015; 2:159-66. [PMID: 26816639 PMCID: PMC4669010 DOI: 10.1093/rb/rbv011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 06/23/2015] [Accepted: 06/24/2015] [Indexed: 11/14/2022] Open
Abstract
Camptothecin (CPT)-based drugs always undergo the reversible, pH-dependent lactone ring-opening reaction, yielding the inactive but toxic carboxylate form. Self-assembly strategy provides an effective route for preserving their bio-stability. In this article, nano-sized self-assemblies from CPT-based antitumor drugs were simply built up by directly diluting the stock dimethylsulfoxide solutions of (S)-(+)-CPT, (S)-10-hydroxyl camptothecin and carboxylic CPT with water/phosphate-buffered saline solution. Because of their different molecular structures in A-ring or modification on the 20-OH group, CPT self-assembled into helical nano-ribbons, whereas 10-hydroxycamptothecin and carboxylic CPT self-aggregated into flat nano-ribbons and cylindric nano-rods, respectively. Attractively, the self-assembly of CPT-based drugs could occur within 1 min at a low concentration of 1 × 10−5 M. Adopting the J-type self-aggregation, self-assemblies were stable in aqueous solution and could effectively protect the CPT-based drugs from hydrolysis, which thereby kept their bioactivity for tumor therapy.
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Affiliation(s)
- Si-Yong Qin
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China;; School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
| | - Meng-Yun Peng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
| | - Lei Rong
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
| | - Bin Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
| | - Shi-Bo Wang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
| | - Si-Xue Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
| | - Ren-Xi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
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21
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Manchun S, Dass CR, Cheewatanakornkool K, Sriamornsak P. Enhanced anti-tumor effect of pH-responsive dextrin nanogels delivering doxorubicin on colorectal cancer. Carbohydr Polym 2015; 126:222-30. [PMID: 25933543 DOI: 10.1016/j.carbpol.2015.03.018] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 02/23/2015] [Accepted: 03/10/2015] [Indexed: 01/24/2023]
Abstract
Efficacy of doxorubicin (DOX) in colorectal cancer treatment is limited by undesirable side-effects, which are partially due to nonspecific delivery DOX to the tumor target site. This study aimed to develop pH-responsive dextrin nanogels (DNGs) as anticancer drug carriers with pH-controlled drug release. DNGs prepared with formaldehyde as a cross-linker (FDNGs) exhibited smaller size, compared to that using glyoxal (GDNGs). Both DNGs showed pH-dependent drug release properties; drug release was slow at neutral pH but increased significantly in acidic medium. The cytotoxicity of empty and DOX-loaded FDNGs was lower than free DOX and GDNGs, against two commonly used colorectal cancer cells. Intracellular uptake studies indicated that the DOX-loaded FDNGs could efficiently deliver DOX into the nuclei. In vivo, DOX-loaded FDNGs substantially enhanced anti-tumor efficacy, compared to free DOX, exhibiting much higher effects on inhibiting proliferation and inducing apoptosis, as confirmed by mice weight shifts, tumor weight, tumor volume and histological assessment. Therefore, FDNGs are promising as a potential drug delivery vehicle for colorectal cancer therapy.
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Affiliation(s)
- Somkamol Manchun
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand; Pharmaceutical Biopolymer Group (PBiG), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Crispin R Dass
- School of Pharmacy, Faculty of Health Sciences, Curtin University, Perth 6845, Australia; Curtin Health Innovation Research Institute of Ageing and Chronic Disease, Bentley 6102, Australia
| | - Kamonrak Cheewatanakornkool
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand; Pharmaceutical Biopolymer Group (PBiG), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Pornsak Sriamornsak
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand; Pharmaceutical Biopolymer Group (PBiG), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand.
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22
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Raeis Hosseini N, Lee JS. Resistive switching memory based on bioinspired natural solid polymer electrolytes. ACS NANO 2015; 9:419-426. [PMID: 25513838 DOI: 10.1021/nn5055909] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A solution-processed, chitosan-based resistive-switching memory device is demonstrated with Pt/Ag-doped chitosan/Ag structure. The memory device shows reproducible and reliable bipolar resistive switching characteristics. A memory device based on natural organic material is a promising device toward the next generation of nonvolatile nanoelectronics. The memory device based on chitosan as a natural solid polymer electrolyte can be switched reproducibly between high and low resistance states. In addition, the data retention measurement confirmed the reliability of the chitosan-based nonvolatile memory device. The transparent Ag-embedded chitosan film showed an acceptable and comparable resistive switching behavior on the flexible plastic substrate as well. A cost-effective, environmentally benign memory device using chitosan satisfies the functional requirements of nonvolatile memory operations.
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Affiliation(s)
- Niloufar Raeis Hosseini
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, South Korea
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23
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Luo YL, Zhang J, Han FJ, Xu F, Chen YS, Liu R. Epoxidized poly( N-isopropyl acrylamide)- b-epoHTPB- b-poly( N-isopropyl acrylamide) triblock copolymer micelle nanoparticles for 10-hydroxycamptothecin drug release. J Appl Polym Sci 2015. [DOI: 10.1002/app.41877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yan-Ling Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| | - Jun Zhang
- Key Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| | - Fang-Jie Han
- Key Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| | - Feng Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| | - Ya-Shao Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| | - Ru Liu
- Key Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 People's Republic of China
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Bai L, Song F, Wang XH, Cao JYQ, Han X, Wang XL, Wang YZ. Ligand–metal-drug coordination based micelles for efficient intracellular doxorubicin delivery. RSC Adv 2015. [DOI: 10.1039/c5ra05747g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A ligand–metal-drug coordination architecture is exploited to construct polymeric micelles with the high efficient loading and pH-triggered release of anticancer drug.
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Affiliation(s)
- Lan Bai
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE)
- College of Chemistry
- State Key Laboratory of Polymer Materials Engineering
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- Sichuan University
| | - Fei Song
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE)
- College of Chemistry
- State Key Laboratory of Polymer Materials Engineering
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- Sichuan University
| | - Xiao-hui Wang
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE)
- College of Chemistry
- State Key Laboratory of Polymer Materials Engineering
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- Sichuan University
| | - Jiang-yong-quan Cao
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE)
- College of Chemistry
- State Key Laboratory of Polymer Materials Engineering
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- Sichuan University
| | - Xue Han
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE)
- College of Chemistry
- State Key Laboratory of Polymer Materials Engineering
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- Sichuan University
| | - Xiu-li Wang
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE)
- College of Chemistry
- State Key Laboratory of Polymer Materials Engineering
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- Sichuan University
| | - Yu-zhong Wang
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE)
- College of Chemistry
- State Key Laboratory of Polymer Materials Engineering
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- Sichuan University
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Vaishya RD, Gokulgandhi M, Patel S, Minocha M, Mitra AK. Novel dexamethasone-loaded nanomicelles for the intermediate and posterior segment uveitis. AAPS PharmSciTech 2014; 15:1238-51. [PMID: 24895075 DOI: 10.1208/s12249-014-0100-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 02/23/2014] [Indexed: 11/30/2022] Open
Abstract
Development and characterization of dexamethasone (DEX)-encapsulated polymeric nanomicelles have been reported. A low molecular weight di-block copolymer was synthesized and characterized for its structure, molecular weights, critical micelle concentration (CMC), and cytotoxicity in ocular cells. In order to delineate the effects of drug-polymer interactions on drug solubilization in micelle core, a response surface methodology was generated with the help of SAS 9.02 (exploratory model). The method for preparing micelle was modified based on the results obtained from exploratory model. The formulation was optimized by response surface methodology (optimization model) to achieve DEX solubility of above 1 mg/mL. The optimized formulation was characterized for DEX solubility, nanomicelle size, polydispersity index, surface morphology, in vitro transport across conjunctival cell line, and ex vivo transport across excised rabbit sclera. Nanomicelles exhibited average sizes in range of 25-30 nm with unimodel size distribution and low polydispersity of 0.125. Nanomicelles increased DEX permeability by 2 times across conjunctival cell line and by 2.5 times across the excised rabbit sclera as compared to DEX suspension. A design of experiment (DOE) strategy was successfully applied to understand the effects of drug-polymer interaction on drug solubility. DOE was also employed to achieve optimal formulation with high DEX solubility. Nanomicellar formulation significantly enhanced DEX permeability across the excised rabbit sclera. Therefore, nanomicellar formulation may provide therapeutic levels in the back of the eye following topical administration.
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Yang Y, Wang S, Wang Y, Wang X, Wang Q, Chen M. Advances in self-assembled chitosan nanomaterials for drug delivery. Biotechnol Adv 2014; 32:1301-1316. [PMID: 25109677 DOI: 10.1016/j.biotechadv.2014.07.007] [Citation(s) in RCA: 188] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/24/2014] [Accepted: 07/30/2014] [Indexed: 02/06/2023]
Abstract
Nanomaterials based on chitosan have emerged as promising carriers of therapeutic agents for drug delivery due to good biocompatibility, biodegradability, and low toxicity. Chitosan originated nanocarriers have been prepared by mini-emulsion, chemical or ionic gelation, coacervation/precipitation, and spray-drying methods. As alternatives to these traditional fabrication methods, self-assembled chitosan nanomaterials show significant advantages and have received growing scientific attention in recent years. Self-assembly is a spontaneous process by which organized structures with particular functions and properties could be obtained without additional complicated processing or modification steps. In this review, we focus on recent progress in the design, fabrication and physicochemical aspects of chitosan-based self-assembled nanomaterials. Their applications in drug delivery of different therapeutic agents are also discussed in details.
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Affiliation(s)
- Yu Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Xiaohui Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Qun Wang
- Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011, USA; Department of Civil, Construction and Environmental Engineering, Iowa State University, Ames, IA 50011, USA.
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
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Self-assembled pH-responsive hyaluronic acid-g-poly((L)-histidine) copolymer micelles for targeted intracellular delivery of doxorubicin. Acta Biomater 2014; 10:2024-35. [PMID: 24365705 DOI: 10.1016/j.actbio.2013.12.025] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 12/05/2013] [Accepted: 12/13/2013] [Indexed: 01/01/2023]
Abstract
Hyaluronic acid (HA) was conjugated with hydrophobic poly(l-histidine) (PHis) to prepare a pH-responsive and tumor-targeted copolymer, hyaluronic acid-g-poly(l-histidine) (HA-PHis), for use as a carrier for anti-cancer drugs. The effect of the degree of substitution (DS) on the pH-responsive behaviour of HA-PHis copolymer micelles was confirmed by studies of particles of different sizes. In vitro drug release studies demonstrated that doxorubicin (DOX) was released from HA-PHis micelles in a pH-dependent manner. In vitro cytotoxicity assays showed that all the blank micelles were nontoxic. However, MTT assay against Michigan Cancer Foundation-7 (MCF-7) cells (overexpressed CD44 receptors) showed that DOX-loaded micelles with a low PHis DS were highly cytotoxic. Cellular uptake experiments revealed that these pH-responsive HA-PHis micelles taken up in great amounts by receptor-mediated endocytosis and DOX were efficiently delivered into cytosol. Moreover, micelles with the lowest DS exhibited the highest degree of cellular uptake, which indicated that the micelles were internalized into cells via CD44 receptor-mediated endocytosis and the carboxylic groups of HA are the active binding sites for CD44 receptors. Endocytosis inhibition experiments and confocal images demonstrated that HA-PHis micelles were internalized into cells mainly via clathrin-mediated endocytosis and delivered to lysosomes, triggering release of DOX into the cytoplasm. These results confirm that the biocompatible pH-responsive HA-PHis micelles are a promising nanosystem for the intracellular targeted delivery of DOX.
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Song F, Shi WT, Dong XT, Han X, Wang XL, Chen SC, Wang YZ. Fennel-like nanoaggregates based on polysaccharide derivatives and their application in drug delivery. Colloids Surf B Biointerfaces 2014; 113:501-4. [DOI: 10.1016/j.colsurfb.2013.09.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 09/12/2013] [Accepted: 09/13/2013] [Indexed: 11/16/2022]
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Xu F, Zhang BX, Luo YL. Thermosensitive P(NIPAM-co-AM)-b-PLA block copolymer micelles for applications in intracellular drug delivery. J Drug Deliv Sci Technol 2014. [DOI: 10.1016/s1773-2247(14)50022-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Yang XL, Luo YL, Xu F, Chen YS. Thermosensitive mPEG-b-PA-g-PNIPAM comb block copolymer micelles: effect of hydrophilic chain length and camptothecin release behavior. Pharm Res 2013; 31:291-304. [PMID: 23982333 DOI: 10.1007/s11095-013-1160-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 07/28/2013] [Indexed: 01/15/2023]
Abstract
PURPOSE Block copolymer micelles are extensively used as drug controlled release carriers, showing promising application prospects. The comb or brush copolymers are especially of great interest, whose densely-grafted side chains may be important for tuning the physicochemical properties and conformation in selective solvents, even in vitro drug release. The purpose of this work was to synthesize novel block copolymer combs via atom transfer radical polymerization, to evaluate its physicochemical features in solution, to improve drug release behavior and to enhance the bioavailablity, and to decrease cytotoxicity. METHODS The physicochemical properties of the copolymer micelles were examined by modulating the composition and the molecular weights of the building blocks. A dialysis method was used to load hydrophobic camptothecin (CPT), and the CPT release and stability were detected by UV-vis spectroscopy and high-performance liquid chromatography, and the cytotoxicity was evaluated by MTT assays. RESULTS The copolymers could self-assemble into well-defined spherical core-shell micelle aggregates in aqueous solution, and showed thermo-induced micellization behavior, and the critical micelle concentration was 2.96-27.64 mg L(-1). The micelles were narrow-size-distribution, with hydrodynamic diameters about 128-193 nm, depending on the chain length of methoxy polyethylene glycol (mPEG) blocks and poly(N-isopropylacrylamide) (PNIPAM) graft chains or/and compositional ratios of mPEG to PNIPAM. The copolymer micelles could stably and effectively load CPT but avoid toxicity and side-effects, and exhibited thermo-dependent controlled and targeted drug release behavior. CONCLUSIONS The copolymer micelles were safe, stable and effective, and could potentially be employed as CPT controlled release carriers.
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Affiliation(s)
- Xiao-Li Yang
- Key Laboratory of Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, People's Republic of China
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