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Bhuiyan MH, Clarkson AN, Ali MA. Optimization of thermoresponsive chitosan/β-glycerophosphate hydrogels for injectable neural tissue engineering application. Colloids Surf B Biointerfaces 2023; 224:113193. [PMID: 36773410 DOI: 10.1016/j.colsurfb.2023.113193] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/17/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023]
Abstract
Regeneration of neural tissue and recovery of lost functions following an accident or disease to the central nervous system remains a major challenge worldwide, with limited treatment options available. The main reason for the failure of conventional therapeutic techniques to regenerate neural tissue is the presence of blood-brain barrier separating nervous system from systemic circulation and the limited capacity of self-regeneration of the nervous system. Injectable hydrogels have shown great promise for neural tissue engineering given their suitability for minimally invasive in situ delivery and tunable mechanical and biological properties. Chitosan (CS)/β-glycerophosphate (β-GP) hydrogels have been extensively investigated and shown regenerative potential in a wide variety of tissues such as bone and cartilage tissue engineering. However, the potential of CS/β-GP hydrogels has never been tested for injectable neural tissue engineering applications. In the present study, CS/β-GP hydrogels, consisting of 0.5-2% CS and 2-3% β-GP, were prepared and characterized to investigate their suitability for injectable neural tissue engineering applications. The resulting CS/β-GP-hydrogels showed a varying range of properties depending on the CS/β-GP blend ratio. In particular, the 0.5%:3% and 0.75%:3% CS/β-GP hydrogels underwent rapid gelation (3 min and 5 min, respectively) at physiological temperature (37 °C) and pH (7.4). They also had suitable porosity, osmolality, swelling behavior and biodegradation for tissue engineering. The biocompatibility of hydrogels was determined in vitro using PC12 cells, an immortalized cell line with neuronal cell-like properties, revealing that these hydrogels supported cell growth and proliferation. In conclusion, the thermoresponsive 0.5%:3% and 0.75%:3% CS/β-GP hydrogels had the greatest potential for neural tissue engineering.
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Affiliation(s)
- Mozammel Haque Bhuiyan
- Center for Bioengineering and Nanomedicine, University of Otago, PO Box 56, Dunedin 9054, New Zealand; Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, PO Box 56, Dunedin 9054, New Zealand; Sir John Walsh Research Institute, Faculty of Dentistry, Division of Health Science, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
| | - Andrew N Clarkson
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
| | - M Azam Ali
- Center for Bioengineering and Nanomedicine, University of Otago, PO Box 56, Dunedin 9054, New Zealand; Sir John Walsh Research Institute, Faculty of Dentistry, Division of Health Science, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
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Sithole MN, Mndlovu H, du Toit LC, Choonara YE. Advances in Stimuli-responsive Hydrogels for Tissue Engineering and Regenerative Medicine Applications: A Review Towards Improving Structural Design for 3D Printing. Curr Pharm Des 2023; 29:3187-3205. [PMID: 37779402 DOI: 10.2174/0113816128246888230920060802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/17/2023] [Accepted: 07/14/2023] [Indexed: 10/03/2023]
Abstract
The physicochemical properties of polymeric hydrogels render them attractive for the development of 3D printed prototypes for tissue engineering in regenerative medicine. Significant effort has been made to design hydrogels with desirable attributes that facilitate 3D printability. In addition, there is significant interest in exploring stimuli-responsive hydrogels to support automated 3D printing into more structurally organised prototypes such as customizable bio-scaffolds for regenerative medicine applications. Synthesizing stimuli-responsive hydrogels is dependent on the type of design and modulation of various polymeric materials to open novel opportunities for applications in biomedicine and bio-engineering. In this review, the salient advances made in the design of stimuli-responsive polymeric hydrogels for 3D printing in tissue engineering are discussed with a specific focus on the different methods of manipulation to develop 3D printed stimuli-responsive polymeric hydrogels. Polymeric functionalisation, nano-enabling and crosslinking are amongst the most common manipulative attributes that affect the assembly and structure of 3D printed bio-scaffolds and their stimuli- responsiveness. The review also provides a concise incursion into the various applications of stimuli to enhance the automated production of structurally organized 3D printed medical prototypes.
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Affiliation(s)
- Mduduzi Nkosinathi Sithole
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg, Gauteng, 2193, South Africa
| | - Hillary Mndlovu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg, Gauteng, 2193, South Africa
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg, Gauteng, 2193, South Africa
| | - Yahya Essop Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg, Gauteng, 2193, South Africa
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3
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Yang L, Sun X, Huang J, Zhu S, Li Y. Study on the Application of a Novel Nano-Curcumin Drug for Alzheimer’s Disease. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease hallmarked by impaired cognitive function and memory decline; it is accompanied by a variety of mental symptoms and behavioral disorders. This disease has a serious impact on society, families, and the afflicted patients.
Curcumin (Cur) nanoparticles were preparation by modifying curcumin with polyethylene glycol-polylactic acid (PEG-PLA) amphiphilic block copolymer. The resulting nanodrug can successfully penetrate the blood brain barrier (BBB) and concentrate in the main pathological areas of AD. As measured
with a Zeta particle size analyzer, the particle size of PEG-PLA/Cur was 100 ± 0.53 nm, and it was electrically neutral. In vitro experiments revealed that PEG-PLA/Cur successfully penetrated the membrane of PC12 cells and inhibited proliferation. PEG-PLA/Cur also exhibited an
inhibitory effect on the production of amyloid β protein (Aβ fiber) and depolymerization activity on Aβ fiber aggregates. PEG-PLA/Cur represents a novel nanodrug with the potential to treat AD.
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Affiliation(s)
- Liu Yang
- Department of Neurology, First Affiliated Hospital of Jinan University, Guangzhou 510623, Guangdong, PR China
| | - Xin Sun
- Outpatient Department of University of Jinan Affiliated First Hospital, Guangzhou 510623, Guangdong, PR China
| | - Jun Huang
- Department of Anesthesiology, Fourth People’s Hospital of Chenzhou City, Hunan Province, Chenzhou 423000, Hunan, PR China
| | - Shimiao Zhu
- Department of Rehabilitation, Affiliated Hospital of Hunan Xiangnan College, Chenzhou 423000, Hunan, PR China
| | - Yan Li
- Department of Hyperbaric Oxygen, Affiliated Hospital of Hunan Xiangnan College, Chenzhou 423000, Hunan, PR China
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Mude L, Sanapalli BKR, V AN, Singh SK, Karri VVSR. Overview of in situ gelling injectable hydrogels for diabetic wounds. Drug Dev Res 2021; 82:503-522. [PMID: 33432634 DOI: 10.1002/ddr.21788] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/15/2020] [Accepted: 12/24/2020] [Indexed: 01/01/2023]
Abstract
Diabetes mellitus (DM) is an endocrine disorder that causes increased blood glucose than usual due to insulin impairment. In DM, several complications arise in which diabetic wound (DW) is the most devastating complication. About 25% of patients with DM expected to develop DWs in their lifetime and undergo limb amputations. Even though several treatments such as surgery, debridement, wound dressings, advanced therapies were available, the overall conclusion has been that with very few exceptions, patients still suffer from limitations like pain, frequent dress changing, high rates of failure, and cost involvement. Further, the treatments involving the delivery of therapeutic agents in treating DWs have limited success due to abnormal levels of proteases in the DW environment. In this backdrop, in situ gelling injectable hydrogels have gained special attention due to their easy encapsulation of therapeutic medications and prolonged release, filling the wound defect areas, ease of handling, and minimally invasive surgical procedures. Though the in situ gelling injectable hydrogels are developed a couple of decades ago, their use for treating DW has not yet been explored thoroughly. Thus, in this review, we have covered the sequential events of DW healing, pathophysiology, current treatments, and its limitations, along with a particular emphasis on the mechanism of action of these in situ gelling injectable hydrogels treating DWs.
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Affiliation(s)
- Lavanya Mude
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Bharat Kumar Reddy Sanapalli
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Anoop Narayanan V
- Department of Pharmaceutics, NGSM Institute of Pharmaceutical Sciences, NITTE Deemed to be University, Paneer, Deralakatte, Mangalore, Karnataka, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
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5
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Li Y, Yang HY, Lee DS. Advances in biodegradable and injectable hydrogels for biomedical applications. J Control Release 2020; 330:151-160. [PMID: 33309972 DOI: 10.1016/j.jconrel.2020.12.008] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/29/2020] [Accepted: 12/07/2020] [Indexed: 01/04/2023]
Abstract
In situ-forming injectable hydrogels are smart biomaterials that can be implanted into living bodies with minimal invasion. Due to pioneer work of Prof. Sung Wan Kim in this field, injectable hydrogels have shown great potentials in many different biomedical applications. Biodegradable and injectable hydrogels can be administered at room temperature as viscous polymer sols. They will degrade after accomplishing their tasks. Before injecting into living bodies, active substances can be loaded into viscous polymer sols with a high loading efficiency by simple mixing. After injecting into living bodies, active substances-loaded hydrogels can be formed and active substances can be released in a controlled manner upon diffusion or polymer degradation. Due to their outstanding properties and unique features, injectable hydrogels are very promising in many biomedical applications including drug/protein/gene delivery, tissue engineering, and regenerative medicine. In this review, we briefly introduce recent development of several important types of in situ-forming injectable hydrogels reported by our group during the last three years. Important properties and potential applications (such as cancer therapy, insulin release and wound healing) of these injectable hydrogels are reviewed. Challenges and perspectives in this research field are also discussed.
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Affiliation(s)
- Yi Li
- College of Materials and Textile Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China; Nanotechnology Research Institute (NRI), Jiaxing University, Jiaxing 314001, Zhejiang, PR China.
| | - Hong Yu Yang
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, PR China
| | - Doo Sung Lee
- Theranostic Macromolecules Research Center and School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea.
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6
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Recent advances in formulating electrospun nanofiber membranes: Delivering active phytoconstituents. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.102038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Brissenden AJ, Amsden BG. Insights into the polymerization kinetics of thermoresponsive polytrimethylene carbonate bearing a methoxyethoxy side group. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Brian G. Amsden
- Department of Chemical Engineering Queen's University Kingston Ontario Canada
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8
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Osorno LL, Maldonado DE, Whitener RJ, Brandley AN, Yiantsos A, Medina JDR, Byrne ME. Amphiphilic PLGA‐PEG‐PLGA triblock copolymer nanogels varying in gelation temperature and modulus for the extended and controlled release of hyaluronic acid. J Appl Polym Sci 2020. [DOI: 10.1002/app.48678] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Laura L. Osorno
- Biomimetic & Biohybrid Materials, Biomedical Devices, & Drug Delivery Laboratories, Department of Biomedical EngineeringRowan University Glassboro NJ 08028 USA
| | - Daniel E. Maldonado
- Biomimetic & Biohybrid Materials, Biomedical Devices, & Drug Delivery Laboratories, Department of Biomedical EngineeringRowan University Glassboro NJ 08028 USA
| | - Ricky J. Whitener
- Biomimetic & Biohybrid Materials, Biomedical Devices, & Drug Delivery Laboratories, Department of Biomedical EngineeringRowan University Glassboro NJ 08028 USA
| | | | | | | | - Mark E. Byrne
- Biomimetic & Biohybrid Materials, Biomedical Devices, & Drug Delivery Laboratories, Department of Biomedical EngineeringRowan University Glassboro NJ 08028 USA
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Lübtow MM, Lorson T, Finger T, Gröber‐Becker F, Luxenhofer R. Combining Ultra‐High Drug‐Loaded Micelles and Injectable Hydrogel Drug Depots for Prolonged Drug Release. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900341] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Michael M. Lübtow
- Functional Polymer Materials Chair for Advanced Materials Synthesis Department of Chemistry and Pharmacy and Bavarian Polymer Institute University of Würzburg Röntgenring 11 97070 Würzburg Germany
| | - Thomas Lorson
- Functional Polymer Materials Chair for Advanced Materials Synthesis Department of Chemistry and Pharmacy and Bavarian Polymer Institute University of Würzburg Röntgenring 11 97070 Würzburg Germany
| | - Tamara Finger
- Translational Center ‘Regenerative Therapies' (TLC‐RT) Fraunhofer Institute for Silicate Research (ISC) Neunerplatz 2 97082 Würzburg Germany
| | - Florian‐Kai Gröber‐Becker
- Translational Center ‘Regenerative Therapies' (TLC‐RT) Fraunhofer Institute for Silicate Research (ISC) Neunerplatz 2 97082 Würzburg Germany
- Chair of Tissue Engineering and Regenerative Medicine University Hospital Würzburg Röntgenring 11 97070 Würzburg Germany
| | - Robert Luxenhofer
- Functional Polymer Materials Chair for Advanced Materials Synthesis Department of Chemistry and Pharmacy and Bavarian Polymer Institute University of Würzburg Röntgenring 11 97070 Würzburg Germany
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10
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Cao M, Wang Y, Hu X, Gong H, Li R, Cox H, Zhang J, Waigh TA, Xu H, Lu JR. Reversible Thermoresponsive Peptide–PNIPAM Hydrogels for Controlled Drug Delivery. Biomacromolecules 2019; 20:3601-3610. [PMID: 31365246 DOI: 10.1021/acs.biomac.9b01009] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Meiwen Cao
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Yu Wang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Xuzhi Hu
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester M13 9PL, U.K
| | - Haoning Gong
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester M13 9PL, U.K
| | - Ruiheng Li
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester M13 9PL, U.K
| | - Henry Cox
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester M13 9PL, U.K
| | - Jing Zhang
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester M13 9PL, U.K
| | - Thomas A. Waigh
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester M13 9PL, U.K
- Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Hai Xu
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Jian Ren Lu
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester M13 9PL, U.K
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11
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Feng S, Zhang H, Xu S, Zhi C, Nakanishi H, Gao XD. Folate-conjugated, mesoporous silica functionalized boron nitride nanospheres for targeted delivery of doxorubicin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:552-560. [PMID: 30606565 DOI: 10.1016/j.msec.2018.11.063] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/22/2018] [Accepted: 11/27/2018] [Indexed: 12/30/2022]
Abstract
Biomedical application of boron nitride (BN) nanomaterials has recently attracted considerable attentions. BN nanospheres (BNNS) could safely deliver anti-cancer drug into tumor cells, which makes them potential nanocarrier for cancer therapy. However, the poor dispersity in physiological environments and low drug loading capacity severely limit their further applications. Herein, we developed a novel drug delivery system based on folate-conjugated mesoporous silica (MS)-functionalized BNNS (BNMS-FA). Dispersity and drug loading capacity of BNNS were highly improved by MS modification. BNMS-FA complexes were nontoxic up to a concentration of 100 μg/mL, and could be specifically internalized by HeLa and MCF-7 cells via folate receptor-mediated endocytosis. Doxorubicin (DOX) could be loaded onto BNMS-FA complexes with high efficiency via π-π stacking and hydrogen bonding, and showed a sustained release pattern under different pH conditions. BNMS-FA/DOX complexes exhibited superior drug internalization and antitumor efficacy over free DOX, BNNS/DOX and BNMS/DOX complexes, which were considered promising for targeted cancer therapy.
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Affiliation(s)
- Shini Feng
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Huijie Zhang
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China
| | - Sha Xu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Chunyi Zhi
- Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Kowlong, Hong Kong, China
| | - Hideki Nakanishi
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
| | - Xiao-Dong Gao
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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12
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Burova TV, Grinberg VY, Grinberg NV, Dubovik AS, Moskalets AP, Papkov VS, Khokhlov AR. Salt-Induced Thermoresponsivity of a Cationic Phosphazene Polymer in Aqueous Solutions. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tatiana V. Burova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russia
| | - Valerij Y. Grinberg
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russia
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119991, Russia
| | - Natalia V. Grinberg
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russia
| | - Alexander S. Dubovik
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119991, Russia
| | - Alexander P. Moskalets
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russia
| | - Vladimir S. Papkov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russia
| | - Alexei R. Khokhlov
- M.V. Lomonosov Moscow
State University, Leninskie Gory 1, Moscow 119991, Russia
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Patel M, Park S, Lee HJ, Jeong B. Polypeptide Thermogels as Three-Dimensional Scaffolds for Cells. Tissue Eng Regen Med 2018; 15:521-530. [PMID: 30603576 PMCID: PMC6171707 DOI: 10.1007/s13770-018-0148-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Thermogel is an aqueous solution that exhibits a sol-to-gel transition as the temperature increases. Stem cells, growth factors, and differentiating factors can be incorporated in situ in the matrix during the sol-to-gel transition, leading to the formation of a three-dimensional (3D) cell-culture scaffold. METHODS The uses of thermogelling polypeptides, such as collagen, Matrigel™, elastin-like polypeptides, and synthetic polypeptides, as 3D scaffolds of cells, are summarized in this paper. RESULTS The timely supply of growth factors to the cells, cell survival, and metabolite removal is to be insured in the cell culture matrix. Various growth factors were incorporated in the matrix during the sol-to-gel transition of the thermogelling polypeptide aqueous solutions, and preferential differentiation of the incorporated stem cells into specific target cells were investigated. In addition, modulus of the matrix was controlled by post-crosslinking reactions of thermogels or employing composite systems. Chemical functional groups as well as biological factors were selected appropriately for targeted differentiation of the incorporated stem cells. CONCLUSION In addition to all the advantages of thermogels including mild conditions for cell-incorporation and controlled supplies of the growth factors, polypeptide thermogels provide neutral pH environments to the cells during the degradation of the gel. Polypeptide thermogels as an injectable scaffold can be a promising system for their eventual in vivo applications in stem cell therapy.
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Affiliation(s)
- Madhumita Patel
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
| | - Sohee Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
| | - Hyun Jung Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
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Biomedical application and controlled drug release of electrospun fibrous materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:750-763. [DOI: 10.1016/j.msec.2018.05.007] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 03/24/2018] [Accepted: 05/02/2018] [Indexed: 12/18/2022]
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15
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Cyclodextrin- and dendrimer-conjugated graphene oxide as a nanocarrier for the delivery of selected chemotherapeutic and photosensitizing agents. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:307-315. [DOI: 10.1016/j.msec.2018.04.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/13/2017] [Accepted: 04/10/2018] [Indexed: 12/25/2022]
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16
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Li H, Niu Y. Synthesis and characterization of amphiphilic block polymer poly(ethylene glycol)-poly(propylene carbonate)-poly(ethylene glycol) for drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:160-165. [DOI: 10.1016/j.msec.2018.04.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 03/07/2018] [Accepted: 04/04/2018] [Indexed: 01/25/2023]
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17
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Sang X, Yang Q, Shi G, Zhang L, Wang D, Ni C. Preparation of pH/redox dual responsive polymeric micelles with enhanced stability and drug controlled release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:727-733. [PMID: 30033307 DOI: 10.1016/j.msec.2018.06.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 05/28/2018] [Accepted: 06/09/2018] [Indexed: 12/19/2022]
Abstract
Stimuli-responsive polymeric micelles were prepared through self-assembly of amphiphilic copolymers poly(ethylene glycol)-poly(γ-benzyl l-glutamate), followed by a core-crosslinking reaction using cystamine as the crosslinking agent. The crosslinked micelles with spherical morphologies in nanometer size showed enhanced stability against dilution and concentrated salt solutions compared to the micelles before crosslinking. Doxorubicin (DOX) as a model drug was encapsulated into the core of micelles through electrostatic interactions between carboxylic acid and DOX. In vitro drug release under pH and redox conditions was investigated. Furthermore, the cytotoxicity of micelles was evaluated before and after drug loading. The endocytosis of DOX-loaded micelles and the intracellular drug release were studied. DOX-loaded micelles exhibited accelerated drug release behaviors in an acidic and reductive environment, and showed an inhibited premature release behavior as compared to the noncrosslinked micelles. Considering their enhanced stability, pH and redox dual triggered responsive characteristics, the polymeric micelles can serve as potential systems for controlled drug delivery.
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Affiliation(s)
- Xinxin Sang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Qiyi Yang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Gang Shi
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Liping Zhang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Dawei Wang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Caihua Ni
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China.
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Wang X, Young DJ, Wu YL, Loh XJ. Thermogelling 3D Systems towards Stem Cell-Based Tissue Regeneration Therapies. Molecules 2018; 23:E553. [PMID: 29498651 PMCID: PMC6017244 DOI: 10.3390/molecules23030553] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/25/2018] [Accepted: 02/26/2018] [Indexed: 02/08/2023] Open
Abstract
Stem cell culturing and differentiation is a very important research direction for tissue engineering. Thermogels are well suited for encapsulating cells because of their non-biotoxic nature and mild sol-gel transition as temperature increases. In particular, thermogels provide a 3D growth environment for stem cell growth, which is more similar to the extracellular matrix than flat substrates, so thermogels as a medium can overcome many of the cell abnormalities caused by 2D cell growth. In this review, we summarize the applications of thermogels in cell and stem cell culture in recent years. We also elaborate on the methods to induce stem cell differentiation by using thermogel-based 3D scaffolds. In particular, thermogels, encapsulating specific differentiation-inducing factor and having specific structures and moduli, can induce the differentiation into the desired tissue cells. Three dimensional thermogel scaffolds that control the growth and differentiation of cells will undoubtedly have a bright future in regenerative medicine.
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Affiliation(s)
- Xiaoyuan Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China.
| | - David James Young
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore 4558, Queensland, Australia.
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China.
| | - Xian Jun Loh
- A*STAR (Agency for Science, Technology and Research), Institute of Materials Science and Engineering, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
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Li H, Kadiyala I, Briggs M, Shawgo R, Reda K, Patel R, Tanner K, Berlioz-Seux F, Furey B, Hurter P, Boucher DM. Proof of Principle for Local Delivery of a c-Met Inhibitor. J Pharm Sci 2018; 107:856-862. [DOI: 10.1016/j.xphs.2017.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 10/13/2017] [Accepted: 10/17/2017] [Indexed: 10/18/2022]
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20
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Le PN, Huynh CK, Tran NQ. Advances in thermosensitive polymer-grafted platforms for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:1016-1030. [PMID: 30184725 DOI: 10.1016/j.msec.2018.02.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/16/2017] [Accepted: 02/08/2018] [Indexed: 02/06/2023]
Abstract
Studies on "smart" polymeric material performing environmental stimuli such as temperature, pH, magnetic field, enzyme and photo-sensation have recently paid much attention to practical applications. Among of them, thermo-responsive grafted copolymers, amphiphilic steroids as well as polyester molecules have been utilized in the fabrication of several multifunctional platforms. Indeed, they performed a strikingly functional improvement comparing to some original materials and exhibited a holistic approach for biomedical applications. In case of drug delivery systems (DDS), there has been some successful proof of thermal-responsive grafted platforms on clinical trials such as ThermoDox®, BIND-014, Cynviloq IG-001, Genexol-PM, etc. This review would detail the recent progress and highlights of some temperature-responsive polymer-grafted nanomaterials or hydrogels in the 'smart' DDS that covered from synthetic polymers to nature-driven biomaterials and novel generations of some amphiphilic functional platforms. These approaches could produce several types of smart biomaterials for human health care in future.
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Affiliation(s)
- Phung Ngan Le
- Institute of Research and Development, Duy Tan University, Da Nang City 550000, Viet Nam; Institute of Applied Materials Science, Vietnam Academy of Science and Technology, 1A TL29, District 12, Hochiminh City 700000, Viet Nam
| | - Chan Khon Huynh
- Biomedical Engineering Department, International University, National Universities in HCMC, HCMC 70000, Viet Nam
| | - Ngoc Quyen Tran
- Institute of Research and Development, Duy Tan University, Da Nang City 550000, Viet Nam; Institute of Applied Materials Science, Vietnam Academy of Science and Technology, 1A TL29, District 12, Hochiminh City 700000, Viet Nam; Graduate School of Science and Technology Viet Nam, Vietnam Academy of Science and Technology, 1A TL29, District 12, Hochiminh City 700000, Viet Nam.
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21
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Grinberg VY, Burova TV, Grinberg NV, Papkov VS, Dubovik AS, Khokhlov AR. Salt-Induced Thermoresponsivity of Cross-Linked Polymethoxyethylaminophosphazene Hydrogels: Energetics of the Volume Phase Transition. J Phys Chem B 2018; 122:1981-1991. [DOI: 10.1021/acs.jpcb.7b11288] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valerij Y. Grinberg
- N.M.
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russian Federation
| | - Tatiana V. Burova
- A.N.
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, 119991 Moscow, Russian Federation
| | - Natalia V. Grinberg
- A.N.
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, 119991 Moscow, Russian Federation
| | - Vladimir S. Papkov
- A.N.
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, 119991 Moscow, Russian Federation
| | - Alexander S. Dubovik
- N.M.
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russian Federation
| | - Alexei R. Khokhlov
- M.V. Lomonosov Moscow State University, Physics
Department, Vorobyevy
Gory, 119992 Moscow, Russian Federation
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22
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Wang QL, Zhang XP, Chen BZ, Guo XD. Dissolvable layered microneedles with core-shell structures for transdermal drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 83:143-147. [DOI: 10.1016/j.msec.2017.11.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/02/2017] [Accepted: 11/17/2017] [Indexed: 01/27/2023]
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23
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Development of novel pH-sensitive thiolated chitosan/PMLA nanoparticles for amoxicillin delivery to treat Helicobacter pylori. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 83:17-24. [DOI: 10.1016/j.msec.2017.08.038] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/13/2017] [Accepted: 08/10/2017] [Indexed: 01/26/2023]
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24
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Larrañeta E, Stewart S, Ervine M, Al-Kasasbeh R, Donnelly RF. Hydrogels for Hydrophobic Drug Delivery. Classification, Synthesis and Applications. J Funct Biomater 2018; 9:E13. [PMID: 29364833 PMCID: PMC5872099 DOI: 10.3390/jfb9010013] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 12/14/2022] Open
Abstract
Hydrogels have been shown to be very useful in the field of drug delivery due to their high biocompatibility and ability to sustain delivery. Therefore, the tuning of their properties should be the focus of study to optimise their potential. Hydrogels have been generally limited to the delivery of hydrophilic drugs. However, as many of the new drugs coming to market are hydrophobic in nature, new approaches for integrating hydrophobic drugs into hydrogels should be developed. This article discusses the possible new ways to incorporate hydrophobic drugs within hydrogel structures that have been developed through research. This review describes hydrogel-based systems for hydrophobic compound delivery included in the literature. The section covers all the main types of hydrogels, including physical hydrogels and chemical hydrogels. Additionally, reported applications of these hydrogels are described in the subsequent sections.
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Affiliation(s)
- Eneko Larrañeta
- Queens University Belfast, School of Pharmacy, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Sarah Stewart
- Queens University Belfast, School of Pharmacy, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Michael Ervine
- Queens University Belfast, School of Pharmacy, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Rehan Al-Kasasbeh
- Queens University Belfast, School of Pharmacy, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Ryan F Donnelly
- Queens University Belfast, School of Pharmacy, 97 Lisburn Road, Belfast BT9 7BL, UK.
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25
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Yang S, Wang Y, Ren Z, Chen M, Chen W, Zhang X. Stepwise pH/reduction-responsive polymeric conjugates for enhanced drug delivery to tumor. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 82:234-243. [DOI: 10.1016/j.msec.2017.08.079] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/03/2017] [Accepted: 08/10/2017] [Indexed: 02/05/2023]
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26
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Tsai W, Tsai H, Wong Y, Hong J, Chang S, Lee M. Preparation and characterization of gellan gum/glucosamine/clioquinol film as oral cancer treatment patch. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 82:317-322. [DOI: 10.1016/j.msec.2017.05.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 04/24/2017] [Accepted: 05/04/2017] [Indexed: 01/10/2023]
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Fonseca-Santos B, Chorilli M. An overview of polymeric dosage forms in buccal drug delivery: State of art, design of formulations and their in vivo performance evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 29525088 DOI: 10.1016/j.msec.2017.12.022] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Owing to the ease of the administration, the oral cavity is an attractive site for the delivery of drugs. The main difficulty for administration via the buccal route is an effective physiological removal mechanism of the oral cavity that takes way the formulation from the buccal site and decreases the bioavailability of drugs. The use of mucoadhesive polymers in buccal drug delivery shows assessing buccal drug permeation and absorption, however some studies bring an in vivo performance. This review points to the use of polymers in the manufacture of drug delivery systems (hydrogels, films and tablets) and shows the results of their in vivo performance tests.
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Affiliation(s)
- Bruno Fonseca-Santos
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903 Araraquara, São Paulo, Brazil.
| | - Marlus Chorilli
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903 Araraquara, São Paulo, Brazil.
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Dhanka M, Shetty C, Srivastava R. Injectable methotrexate loaded polycaprolactone microspheres: Physicochemical characterization, biocompatibility, and hemocompatibility evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:542-550. [DOI: 10.1016/j.msec.2017.08.055] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 07/14/2017] [Accepted: 08/10/2017] [Indexed: 12/22/2022]
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29
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Kudarha RR, Sawant KK. Albumin based versatile multifunctional nanocarriers for cancer therapy: Fabrication, surface modification, multimodal therapeutics and imaging approaches. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:607-626. [DOI: 10.1016/j.msec.2017.08.004] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 07/13/2017] [Accepted: 08/02/2017] [Indexed: 12/30/2022]
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Ji X, Guo H, Tang Q, Ma D, Xue W. A targeted nanocarrier based on polyspermine for the effective delivery of methotrexate in nasopharyngeal carcinoma. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:48-56. [DOI: 10.1016/j.msec.2017.07.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 06/08/2017] [Accepted: 07/13/2017] [Indexed: 12/27/2022]
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31
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Fong YT, Chen CH, Chen JP. Intratumoral Delivery of Doxorubicin on Folate-Conjugated Graphene Oxide by In-Situ Forming Thermo-Sensitive Hydrogel for Breast Cancer Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E388. [PMID: 29135959 PMCID: PMC5707605 DOI: 10.3390/nano7110388] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/03/2017] [Accepted: 11/07/2017] [Indexed: 12/12/2022]
Abstract
By taking advantage of the pH-sensitive drug release property of graphene oxide (GO) after intracellular uptake, we prepared folic acid (FA)-conjugated GO (GOFA) for targeted delivery of the chemotherapeutic drug doxorubicin (DOX). GOFA-DOX was further encapsulated in an injectable in-situ forming thermo-sensitive hyaluronic acid-chitosan-g-poly(N-isopropylacrylamide) (HACPN) hydrogel for intratumoral delivery of DOX. As the degradation time of HACPN could be extended up to 3 weeks, intratumoral delivery of GOFA-DOX/HACPN could provide controlled and targeted delivery of DOX through slow degradation HACPN and subsequent cellular uptake of released GOFA-DOX by tumor cells through interactions of GOFA with folate receptors on the tumor cell's surface. GOFA nano-carrier and HACPN hydrogel were first characterized for the physico-chemical properties. The drug loading experiments indicated the best preparation condition of GOFA-DOX was by reacting 0.1 mg GOFA with 2 mg DOX. GOFA-DOX showed pH-responsive drug release with ~5 times more DOX released at pH 5.5 than at pH 7.4 while only limited DOX was released from GOFA-DOX/HACPN at pH 7.4. Intracellular uptake of GOFA by endocytosis and release of DOX from GOFA-DOX in vitro could be confirmed from transmission electron microscopic and confocal laser scanning microscopic analysis with MCF-7 breast cancer cells. The targeting effect of FA was revealed when intracellular uptake of GOFA was blocked by excess FA. This resulted in enhanced in vitro cytotoxicity as revealed from the lower half maximal inhibitory concentration (IC50) value of GOFA-DOX (7.3 μg/mL) compared with that of DOX (32.5 μg/mL) and GO-DOX (10 μg/mL). The flow cytometry analysis indicated higher apoptosis rates for cells treated with GOFA-DOX (30%) compared with DOX (8%) and GO-DOX (11%). Animal studies were carried out with subcutaneously implanted MCF-7 cells in BALB/c nude mice and subject to intratumoral administration of drugs. The relative tumor volumes of control (saline) and GOFA-DOX/HACPN groups at day 21 were 2.17 and 1.79 times that at day 0 with no significant difference. In comparison, the relative tumor volumes of treatment groups at the same time were significantly different at 1.02, 0.67 and 0.48 times for DOX, GOFA-DOX and GOFA-DOX/HACPN groups, respectively. The anti-tumor efficacy was also supported by images from an in vivo imaging system (IVIS) using MCF-7 cells transfected with luciferase (MCF-7/Luc). Furthermore, tissue biopsy examination and blood analysis indicated that intratumoral delivery of DOX using GOFA-DOX/HACPN did not elicit acute toxicity. Taken together, GOFA-DOX/HACPN could be deemed as a safe and efficient intratumoral drug delivery system for breast cancer therapy.
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Affiliation(s)
- Yi Teng Fong
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
- Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Kwei-San, Taoyuan 33305, Taiwan.
| | - Chih-Hao Chen
- Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Kwei-San, Taoyuan 33305, Taiwan.
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
- Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Kwei-San, Taoyuan 33305, Taiwan.
- Research Center for Chinese Herbal Medicine and Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Kwei-San, Taoyuan 33302, Taiwan.
- Department of Materials Engineering, Ming Chi University of Technology, Tai-Shan, New Taipei City 24301, Taiwan.
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Cao QY, Jiang R, Liu M, Wan Q, Xu D, Tian J, Huang H, Wen Y, Zhang X, Wei Y. Preparation of AIE-active fluorescent polymeric nanoparticles through a catalyst-free thiol-yne click reaction for bioimaging applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:411-416. [DOI: 10.1016/j.msec.2017.06.008] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 05/26/2017] [Accepted: 06/15/2017] [Indexed: 01/25/2023]
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Azqhandi MHA, Farahani BV, Dehghani N. Encapsulation of methotrexate and cyclophosphamide in interpolymer complexes formed between poly acrylic acid and poly ethylene glycol on multi-walled carbon nanotubes as drug delivery systems. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.089] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Preparations of hyperbranched polymer nano micelles and the pH/redox controlled drug release behaviors. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Influence of alginate backbone on efficacy of thermo-responsive alginate-g-P(NIPAAm) hydrogel as a vehicle for sustained and controlled gene delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 95:409-421. [PMID: 30573265 DOI: 10.1016/j.msec.2017.09.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 08/30/2017] [Accepted: 09/25/2017] [Indexed: 12/24/2022]
Abstract
Alginate grafted poly(N-isopropylacrylamide) hydrogels (Alg-g-P(NIPAAm)) form three-dimensional networks in mild conditions, making them suitable for incorporation of labile macromolecules, such as DNA. The impact of P(NIPAAm) on copolymer characteristics has been well studied, however the impact of alginate backbone characteristics on copolymer properties has to-date not been investigated. Six different Alg-g-P(NIPAAm) hydrogels were synthesised with 10% alginate, which varied in terms of molecular weight (MW) and mannuronate/guluronate (M/G) monomer ratio, and with 90% NIPAAm in order to develop an injectable and thermo-responsive hydrogel formulation for localised gene delivery. Hydrogel stiffness was directly proportional to MW and the M/G ratio of the alginate backbone. Hydrogels with a high MW or low M/G ratio alginate backbone demonstrated a greater stiffness than those hydrogels comprising low MW alginates and high M/G ratio. Hydrogels with a high M/G ratio also produced a complexed and meshed hydrogel network while hydrogels with a low M/G ratio produced a simplified structure with the superposition of Alg-g-P(NIPAAm) sheets. This study was designed to produce the optimal Alg-g-P(NIPAAm) hydrogel with respect to localised delivery of DNA nanoparticles as a potential medical device for those with castrate resistant prostate cancer (CRPC). Given that CRPC typically disseminates to bone causing pain, morbidity and a plethora of skeletal related events, a copolymer based hydrogel was designed to for long term release of therapeutic DNA nanoparticles. The nanoparticles were comprised of plasmid DNA (pDNA), complexed with an amphipathic cell penetrating peptide termed RALA that is designed to enter cells with high efficiency. Alginate MW and M/G ratio affected stiffness, structure, injectability and degradation of the Alg-g-P(NIPAAm) hydrogel. Algogel 3001, had the optimal characteristics for long-term application and was loaded with RALA/pDNA NPs. From the release profiles, it was evident that RALA protected the pDNA from degradation over a 30-day period and conferred a sustained and controlled release profile from the hydrogels compared to pDNA only. Taken together, we have designed a slowly degrading hydrogel suitable for sustained delivery of nucleic acids when incorporated with the RALA delivery peptide. This now opens up several opportunities for the delivery of therapeutic pDNA from this thermo-responsive hydrogel with numerous medical applications.
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Hou P, Zhang N, Wu R, Xu W, Hou Z. Photo-cross-linked biodegradable hydrogels based on n-arm-poly(ethylene glycol), poly(ε-caprolactone) and/or methacrylic acid for controlled drug release. J Biomater Appl 2017; 32:511-523. [PMID: 28899224 DOI: 10.1177/0885328217730465] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In this paper, a novel kind of photo-cross-linked biodegradable hydrogels based on n-arm-poly(ethylene glycol) ( n = 2, 3, and 4) and poly(ɛ-caprolactone) was prepared by ultraviolet-initiated free radical polymerization. The resulting n-arm-poly(ethylene glycol)-poly(ɛ-caprolactone) and n-arm-poly(ethylene glycol)-poly(ɛ-caprolactone) acrylate (n-arm-PEG-PCL-AC, macromer) were characterized by proton nuclear magnetic resonance and fourier transform infrared spectra. The influences of arm numbers and concentration of macromer on the properties of hydrogel were researched systematically, and the results showed that the gelation time, equilibrium swelling ratio, in vitro degradation, and drug release rate decreased with the increase of arm numbers and concentration of macromer. The degradation and drug release rate could be controlled by varying the cross-linking density of hydrogel, indicating a potential application as controlled drug delivery system. Cytotoxicity test of hydrogel extracts was conducted using L929 mouse fibroblasts, and the relative growth rate exceeded 75% (cytotoxicity type: class 1) after incubation for 24 h, showing excellent cytocompatibility. In addition, the paper presented a pH-sensitive hydrogel (G4pH) based on 4-arm-PEG-PCL-AC and acrylic acid, and the influences of pH value on swelling behaviors and in vitro drug release of the pH-sensitive hydrogel were examined. The hydrogels shrank under acidic condition and would swell in neutral or basic medium. The pH-dependent drug release behaviors indicated a promising application of the materials as oral drug delivery vehicles.
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Affiliation(s)
- Ping Hou
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Na Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Ruxia Wu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Weiwei Xu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Zhaosheng Hou
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
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Zhou J, Frank MA, Yang Y, Boccaccini AR, Virtanen S. A novel local drug delivery system: Superhydrophobic titanium oxide nanotube arrays serve as the drug reservoir and ultrasonication functions as the drug release trigger. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 82:277-283. [PMID: 29025658 DOI: 10.1016/j.msec.2017.08.066] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/10/2017] [Accepted: 08/16/2017] [Indexed: 02/01/2023]
Abstract
A local drug delivery system consisting of superhydrophobic titanium oxide nanotube (S-TNTs) arrays and ultrasonic-controlled release trigger was developed in this work. Hydrophilic TNTs arrays are converted into superhydrophobic after being treated by 1H,1H,2H,2H- perfluorooctyl-triethoxysilane (POTS). S-TNTs arrays serving as a drug-carrying vehicle require no extra sealing treatment due to the excellent isolation effect from the trapped air layer on the surface. Different amounts of drugs could be loaded into S-TNTs arrays by control of the structure of arrays (including length and diameter of tubes) and the original amount of drug in the drug-loading solution. The relation between surface morphology of TNTs arrays and superhydrophobicity (isolation effect) was thoroughly investigated. To achieve a stimulus-responsive drug delivery system, ultrasonication was employed as an efficient drug release trigger. Trapped air layer could be selectively removed by ultrasonication, and therefore the loaded drug could be released in a multiple and controlled manner. Any drugs that can dissolve in nonpolar solutions are expected to be suitable for this local drug delivery system.
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Affiliation(s)
- Juncen Zhou
- Institute for Surface Science and Corrosion, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Germany
| | - Micael Alonso Frank
- Institute for Surface Science and Corrosion, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Germany; Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Germany
| | - Yuyun Yang
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Germany; Institute for Surface Science and Corrosion, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Germany
| | - Sannakaisa Virtanen
- Institute for Surface Science and Corrosion, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Germany.
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Lim J, You M, Li J, Li Z. Emerging bone tissue engineering via Polyhydroxyalkanoate (PHA)-based scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629097 DOI: 10.1016/j.msec.2017.05.132] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Polyhydroxyalkanoates (PHAs) are a class of biodegradable polymers derived from microorganisms. On top of their biodegradability and biocompatibility, different PHA types can contribute to varying mechanical and chemical properties. This has led to increasing attention to the use of PHAs in numerous biomedical applications over the past few decades. Bone tissue engineering refers to the regeneration of new bone through providing mechanical support while inducing cell growth on the PHA scaffolds having a porous structure for tissue regeneration. This review first introduces the various properties PHA scaffold that make them suitable for bone tissue engineering such as biocompatibility, biodegradability, mechanical properties as well as vascularization. The typical fabrication techniques of PHA scaffolds including electrospinning, salt-leaching and solution casting are further discussed, followed by the relatively new technology of using 3D printing in PHA scaffold fabrication. Finally, the recent progress of using different types of PHAs scaffold in bone tissue engineering applications are summarized in intrinsic PHA/blends forms or as composites with other polymeric or inorganic hybrid materials.
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Affiliation(s)
- Janice Lim
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Mingliang You
- Cancer Science Institute of Singapore, National University of Singapore, 14 medical drive, Singapore 117599, Singapore
| | - Jian Li
- Center for translational medicine research and development, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Guangdong 518055, China
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
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Claudio-Rizo JA, Rangel-Argote M, Castellano LE, Delgado J, Mata-Mata JL, Mendoza-Novelo B. Influence of residual composition on the structure and properties of extracellular matrix derived hydrogels. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629082 DOI: 10.1016/j.msec.2017.05.118] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In this work, hydrolysates of extracellular matrix (hECM) were obtained from rat tail tendon (TR), bovine Achilles tendon (TAB), porcine small intestinal submucosa (SIS) and bovine pericardium (PB), and they were polymerized to generate ECM hydrogels. The composition of hECM was evaluated by quantifying the content of sulphated glycosaminoglycans (sGAG), fibronectin and laminin. The polymerization process, structure, physicochemical properties, in vitro degradation and biocompatibility were studied and related to their composition. The results indicated that the hECM derived from SIS and PB were significantly richer in sGAG, fibronectin and laminin, than those derived from TAB and TR. These differences in hECM composition influenced the polymerization and the structural characteristics of the fibrillar gel network. Consequently, the swelling, mechanics and degradation of the hydrogels showed a direct relationship with the remaining composition. Moreover, the cytocompatibility and the secretion of transforming growth factor beta-1 (TGF-β1) by macrophages were enhanced in hydrogels with the highest residual content of ECM biomolecules. The results of this work evidenced the role of the ECM molecules remaining after both decellularization and hydrolysis steps to produce tissue derived hydrogels with structure and properties tailored to enhance their performance in tissue engineering and regenerative medicine applications.
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Affiliation(s)
- Jesús A Claudio-Rizo
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico; Departamento de Química, DCNE, Universidad de Guanajuato, Noria alta s/n, 36050 Guanajuato, Gto., Mexico; Ingeniería en Biotecnología, Universidad Politécnica de Pénjamo, Carretera Irapuato-La Piedad Km 44, 36921, Pénjamo, Gto., Mexico
| | - Magdalena Rangel-Argote
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico; Departamento de Química, DCNE, Universidad de Guanajuato, Noria alta s/n, 36050 Guanajuato, Gto., Mexico
| | - Laura E Castellano
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico
| | - Jorge Delgado
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico
| | - José L Mata-Mata
- Departamento de Química, DCNE, Universidad de Guanajuato, Noria alta s/n, 36050 Guanajuato, Gto., Mexico.
| | - Birzabith Mendoza-Novelo
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico.
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Hong JH, Lee HJ, Jeong B. Injectable Polypeptide Thermogel as a Tissue Engineering System for Hepatogenic Differentiation of Tonsil-Derived Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11568-11576. [PMID: 28290667 DOI: 10.1021/acsami.7b02488] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A poly(ethylene glycol)-b-poly(l-alanine) (PEG-l-PA) hydrogel incorporating tonsil-derived mesenchymal stem cells (TMSCs), tauroursodeoxycholic acid (TUDCA), hepatocyte growth factor (HGF), and fibroblast growth factor 4 (FGF4) was prepared through thermal gelation of an aqueous polymer solution for an injectable tissue engineering application. The thermal gelation accompanied conformational changes of both PA and PEG blocks. The gel modulus at 37 °C was controlled to be 1000 Pa by using a 14.0 wt % aqueous polymer solution. The gel preserved its physical integrity during the 3D culture of the cells. TUDCA, HGF, and FGF4 were released from the PEG-l-PA hydrogel over 21 days of the 3D cell culture period. TMSCs initially exhibited a spherical shape, whereas some fibers protruded from the cells on days 14-21 of 3D culture. The injectable system exhibited pronounced expressions of the hepatic biomarkers at both mRNA and protein levels, which are significantly better than the commercially available hyaluronic acid gel. In particular, the hepatogenically differentiated cells from the TMSCs in the injectable system demonstrated hepatic biofunctions comparable to HepG2 cells for the uptakes of low density lipoproteins (52%) and indocyanine green (76%), and the production of albumin (40%) and urea (52%), which are also significantly better than the 3D-cultured cells in the commercially available hyaluronic acid gel. Our studies suggest that the PEG-l-PA thermogel incorporating TMSCs, TUDCA, and growth factors is highly promising as an in situ forming tissue engineering system.
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Affiliation(s)
- Ja Hye Hong
- Department of Chemistry and Nanoscience, Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Hyun Jung Lee
- Department of Chemistry and Nanoscience, Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nanoscience, Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
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41
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Zheng C, Gao H, Yang DP, Liu M, Cheng H, Wu YL, Loh XJ. PCL-based thermo-gelling polymers for in vivo delivery of chemotherapeutics to tumors. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 74:110-116. [PMID: 28254274 DOI: 10.1016/j.msec.2017.02.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 11/25/2016] [Accepted: 02/03/2017] [Indexed: 02/08/2023]
Abstract
The synthesis of a multiblock poly(ether ester urethane)s comprising poly(ε-caprolactone), poly(ethylene glycol), and poly(propylene glycol) segments is described. We found that this polymer possessed a critical thermo-gelation concentration of 4wt%. Molecular characterization of the polymer was performed in terms of molecular weight determination, chemical composition elucidation and functional group determination using GPC, NMR, and FTIR. We carried out in vitro paclitaxel and doxorubicin release studies and demonstrated that sustained therapeutic release of about 2weeks can be obtained with this system. A nude mice model of tumor was developed and intratumoral injection of therapeutic-loaded thermo-gel demonstrated that PTX-loaded thermo-gel effectively inhibited the growth of tumors.
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Affiliation(s)
- Chaohui Zheng
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Hongzhi Gao
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Da-Peng Yang
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China; Fujian Province Key Laboratory for the Development of Bioactive Materials from Marine Algae, College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, China.
| | - Minghuan Liu
- Fujian Province Key Laboratory for the Development of Bioactive Materials from Marine Algae, College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, China
| | - Hongwei Cheng
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China.
| | - Xian Jun Loh
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
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42
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Ke Y, Zhang X, Ramakrishna S, He L, Wu G. Reactive blends based on polyhydroxyalkanoates: Preparation and biomedical application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:1107-1119. [DOI: 10.1016/j.msec.2016.03.114] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 03/06/2016] [Accepted: 03/31/2016] [Indexed: 01/11/2023]
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43
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Wu W, Lin Z, Liu Y, Xu X, Ding C, Li J. Thermoresponsive hydrogels based on a phosphorylated star-shaped copolymer: mimicking the extracellular matrix for in situ bone repair. J Mater Chem B 2017; 5:428-434. [DOI: 10.1039/c6tb02657e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bioinspired hydrogel prepared using a star-polymer exhibits sol to gel transition to induce in situ biomineralization and facilitate cell proliferation.
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Affiliation(s)
- Wei Wu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Zaifu Lin
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Yanpeng Liu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Xinyuan Xu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Chunmei Ding
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Jianshu Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
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44
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In situ forming hydrogels based on chitosan for drug delivery and tissue regeneration. Asian J Pharm Sci 2016. [DOI: 10.1016/j.ajps.2016.07.001] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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45
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Li Z, Loh XJ. Recent advances of using polyhydroxyalkanoate-based nanovehicles as therapeutic delivery carriers. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [DOI: 10.1002/wnan.1429] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 07/26/2016] [Accepted: 07/30/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Zibiao Li
- Institute of Materials Research and Engineering; A*STAR (Agency for Science, Technology and Research); Singapore Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering; A*STAR (Agency for Science, Technology and Research); Singapore Singapore
- Department of Materials Science and Engineering; National University of Singapore; Singapore Singapore
- Singapore Eye Research Institute; Singapore Singapore
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46
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Li Z, Ye E, Lakshminarayanan R, Loh XJ. Recent Advances of Using Hybrid Nanocarriers in Remotely Controlled Therapeutic Delivery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4782-4806. [PMID: 27482950 DOI: 10.1002/smll.201601129] [Citation(s) in RCA: 202] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 05/27/2016] [Indexed: 06/06/2023]
Abstract
The development of hybrid biomaterials has been attracting great attention in the design of materials for biomedicine. The nanosized level of inorganic and organic or even bioactive components can be combined into a single material by this approach, which has created entirely new advanced compositions with truly unique properties for drug delivery. The recent advances in using hybrid nanovehicles as remotely controlled therapeutic delivery carriers are summarized with respect to different nanostructures, including hybrid host-guest nanoconjugates, micelles, nanogels, core-shell nanoparticles, liposomes, mesoporous silica, and hollow nanoconstructions. In addition, the controlled release of guest molecules from these hybrid nanovehicles in response to various remote stimuli such as alternating magnetic field, near infrared, or ultrasound triggers is further summarized to introduce the different mechanisms of remotely triggered release behavior. Through proper chemical functionalization, the hybrid nanovehicle system can be further endowed with many new properties toward specific biomedical applications.
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Affiliation(s)
- Zibiao Li
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way. Innovis, #08-03, Singapore, 138634, Singapore
| | - Enyi Ye
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way. Innovis, #08-03, Singapore, 138634, Singapore
| | | | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way. Innovis, #08-03, Singapore, 138634, Singapore.
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore.
- Singapore Eye Research Institute, 11 Third Hospital Avenue, Singapore, 168751, Singapore.
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47
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Barouti G, Liow SS, Dou Q, Ye H, Orione C, Guillaume SM, Loh XJ. New Linear and Star-Shaped Thermogelling Poly([R]-3-hydroxybutyrate) Copolymers. Chemistry 2016; 22:10501-12. [PMID: 27345491 DOI: 10.1002/chem.201601404] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Indexed: 12/20/2022]
Abstract
The synthesis of multi-arm poly([R]-3-hydroxybutyrate) (PHB)-based triblock copolymers (poly([R]-3-hydroxybutyrate)-b-poly(N-isopropylacrylamide)-b-[[poly(methyl ether methacrylate)-g-poly(ethylene glycol)]-co-[poly(methacrylate)-g-poly(propylene glycol)]], PHB-b-PNIPAAM-b-(PPEGMEMA-co-PPPGMA), and their subsequent self-assembly into thermo-responsive hydrogels is described. Atom transfer radical polymerization (ATRP) of N-isopropylacrylamide (NIPAAM) followed by poly(ethylene glycol) methyl ether methacrylate (PEGMEMA) and poly(propylene glycol) methacrylate (PPGMA) was achieved from bromoesterified multi-arm PHB macroinitiators. The composition of the resulting copolymers was investigated by (1) H and (13) C J-MOD NMR spectroscopy as well as size-exclusion chromatography (SEC), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The copolymers featuring different architectures and distinct hydrophilic/hydrophobic contents were found to self-assemble into thermo-responsive gels in aqueous solution. Rheological studies indicated that the linear one-arm PHB-based copolymer tend to form a micellar solution, whereas the two- and four-arm PHB-based copolymers afforded gels with enhanced mechanical properties and solid-like behavior. These investigations are the first to correlate the gelation properties to the arm number of a PHB-based copolymer. All copolymers revealed a double thermo-responsive behavior due to the NIPAAM and PPGMA blocks, thus allowing first the copolymer self-assembly at room temperature, and then the delivery of a drug at body temperature (37 °C). The non-significant toxic response of the gels, as assessed by the cell viability of the CCD-112CoN human fibroblast cell line with different concentrations of the triblock copolymers ranging from 0.03 to 1 mg mL(-1) , suggest that these PHB-based thermo-responsive gels are promising candidate biomaterials for drug-delivery applications.
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Affiliation(s)
- Ghislaine Barouti
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042, Rennes Cedex, France
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore, 117602, Singapore
| | - Sing Shy Liow
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore, 117602, Singapore
| | - Qingqing Dou
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore, 117602, Singapore
| | - Hongye Ye
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore, 117602, Singapore
| | - Clément Orione
- Centre Régional de Mesures Physiques de l'Ouest, Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042, Rennes Cedex, France
| | - Sophie M Guillaume
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042, Rennes Cedex, France.
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore, 117602, Singapore.
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore.
- Singapore Eye Research Institute, 11 Third Hospital Avenue, Singapore, 168751, Singapore.
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48
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Liow SS, Dou Q, Kai D, Karim AA, Zhang K, Xu F, Loh XJ. Thermogels: In Situ Gelling Biomaterial. ACS Biomater Sci Eng 2016; 2:295-316. [DOI: 10.1021/acsbiomaterials.5b00515] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sing Shy Liow
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Qingqing Dou
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Anis Abdul Karim
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Kangyi Zhang
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | | | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
- Department
of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
- Singapore Eye Research Institute, 11 Third Hospital Avenue, Singapore 168751, Singapore
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McKenzie M, Betts D, Suh A, Bui K, Kim LD, Cho H. Hydrogel-Based Drug Delivery Systems for Poorly Water-Soluble Drugs. Molecules 2015; 20:20397-408. [PMID: 26580588 PMCID: PMC6332288 DOI: 10.3390/molecules201119705] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 11/02/2015] [Accepted: 11/06/2015] [Indexed: 11/20/2022] Open
Abstract
Hydrogels are three-dimensional materials that can withstand a great amount of water incorporation while maintaining integrity. This allows hydrogels to be very unique biomedical materials, especially for drug delivery. Much effort has been made to incorporate hydrophilic molecules in hydrogels in the field of drug delivery, while loading of hydrophobic drugs has not been vastly studied. However, in recent years, research has also been conducted on incorporating hydrophobic molecules within hydrogel matrices for achieving a steady release of drugs to treat various ailments. Here, we summarize the types of hydrogels used as drug delivery vehicles, various methods to incorporate hydrophobic molecules in hydrogel matrices, and the potential therapeutic applications of hydrogels in cancer.
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Affiliation(s)
- Matthew McKenzie
- Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, 4588 Parkview Place, St. Louis, MO 63110, USA.
| | - David Betts
- Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, 4588 Parkview Place, St. Louis, MO 63110, USA.
| | - Amy Suh
- Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, 4588 Parkview Place, St. Louis, MO 63110, USA.
| | - Kathryn Bui
- Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, 4588 Parkview Place, St. Louis, MO 63110, USA.
| | - London Doyoung Kim
- Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, 4588 Parkview Place, St. Louis, MO 63110, USA.
| | - Hyunah Cho
- Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, 4588 Parkview Place, St. Louis, MO 63110, USA.
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50
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Su X, Tan MJ, Li Z, Wong M, Rajamani L, Lingam G, Loh XJ. Recent Progress in Using Biomaterials as Vitreous Substitutes. Biomacromolecules 2015; 16:3093-102. [PMID: 26366887 DOI: 10.1021/acs.biomac.5b01091] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Vitreous substitutes are crucial adjuncts during vitreo-retinal surgery for retinal diseases such as complicated retinal detachment, macular holes, complications of diabetic retinopathy, and ocular trauma involving posterior segment. In retinal detachment surgery, an internal tamponade agent is required to provide internal pressure for reattachment of the detached neurosensory retina. Current available options serve only as a temporary surgical adduct or short-term solution and are associated with inherent problems. Despite many years of intensive research, an ideal vitreous substitute remains elusive. Indeed, the development of an ideal vitreous substitute requires the concerted efforts of synthetic chemists and biomaterial engineers, as well as ophthalmic surgeons. In this review, we propose that polymeric hydrogels present the future of artificial vitreous substitutes due to its high water composition, optical transparency, and rheological properties that closely mimic the natural vitreous. In particular, thermosensitive smart hydrogels, with reversible sol to gel change, have emerged as the material class with the most potential to succeed as ideal vitreous substitutes, facilitating easy implementation during surgery. Importantly, these smart hydrogels also display potential as efficacious drug delivery systems.
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Affiliation(s)
- Xinyi Su
- Department of Ophthalmology, National University Hospital , 1E Kent Ridge Road, NUHS Tower Block, Level 7, Singapore 119228, Singapore.,Singapore Eye Research Institute , 11 Third Hospital Avenue, Singapore 168751, Singapore
| | - Mein Jin Tan
- Institute of Materials Research and Engineering (IMRE), A*STAR , 3 Research Link, Singapore 117602, Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), A*STAR , 3 Research Link, Singapore 117602, Singapore
| | - Meihua Wong
- Department of Ophthalmology, National University Hospital , 1E Kent Ridge Road, NUHS Tower Block, Level 7, Singapore 119228, Singapore
| | | | - Gopal Lingam
- Department of Ophthalmology, National University Hospital , 1E Kent Ridge Road, NUHS Tower Block, Level 7, Singapore 119228, Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), A*STAR , 3 Research Link, Singapore 117602, Singapore.,Department of Materials Science and Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore.,Singapore Eye Research Institute , 11 Third Hospital Avenue, Singapore 168751, Singapore
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