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Ohya Y, Yoshida Y, Kumagae T, Kuzuya A. Gelation upon the Mixing of Amphiphilic Graft and Triblock Copolymers Containing Enantiomeric Polylactide Segments through Stereocomplex Formation. Gels 2024; 10:139. [PMID: 38391469 PMCID: PMC10887654 DOI: 10.3390/gels10020139] [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: 12/27/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024] Open
Abstract
Biodegradable injectable polymer (IP) systems that form hydrogels in situ when injected into the body have considerable potential as medical materials. In this paper, we report a new two-solution mixed biodegradable IP system that utilizes the stereocomplex (SC) formation of poly(l-lactide) (PLLA) and poly(d-lactide) (PDLA). We synthesized triblock copolymers of PLLA and poly(ethylene glycol), PLLA-b-PEG-b-PLLA (tri-L), and a graft copolymer of dextran (Dex) attached to a PDLA-b-PEG diblock copolymer, Dex-g-(PDLA-b-PEG) (gb-D). We found that a hydrogel can be obtained by mixing gb-D solution and tri-L solution via SC formation. Although it is already known that graft copolymers attached to enantiomeric PLLA and PDLA chains can form an SC hydrogel upon mixing, we revealed that hydrogels can also be formed by a combination of graft and triblock copolymers. In this system (graft vs. triblock), the gelation time was shorter, within 1 min, and the physical strength of the resulting hydrogel (G' > 100 Pa) was higher than when graft copolymers were mixed. Triblock copolymers form micelles (16 nm in diameter) in aqueous solutions and hydrophobic drugs can be easily encapsulated in micelles. In contrast, graft copolymers have the advantage that their molecular weight can be set high, contributing to improved mechanical strength of the obtained hydrogel. Various biologically active polymers can be used as the main chains of graft copolymers, and chemical modification using the remaining functional side chain groups is also easy. Therefore, the developed mixing system with a graft vs. triblock combination can be applied to medical materials as a highly convenient, physically cross-linked IP system.
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Affiliation(s)
- Yuichi Ohya
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita 564-8680, Osaka, Japan
- Kansai University Medical Polymer Research Center (KUMP-RC), Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate, Suita 564-8680, Osaka, Japan
| | - Yasuyuki Yoshida
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita 564-8680, Osaka, Japan
| | - Taiki Kumagae
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita 564-8680, Osaka, Japan
| | - Akinori Kuzuya
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita 564-8680, Osaka, Japan
- Kansai University Medical Polymer Research Center (KUMP-RC), Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate, Suita 564-8680, Osaka, Japan
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Jin D, Wang Q, Chan KF, Xia N, Yang H, Wang Q, Yu SCH, Zhang L. Swarming self-adhesive microgels enabled aneurysm on-demand embolization in physiological blood flow. SCIENCE ADVANCES 2023; 9:eadf9278. [PMID: 37172097 PMCID: PMC10181194 DOI: 10.1126/sciadv.adf9278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The recent rise of swarming microrobotics offers great promise in the revolution of minimally invasive embolization procedure for treating aneurysm. However, targeted embolization treatment of aneurysm using microrobots has significant challenges in the delivery capability and filling controllability. Here, we develop an interventional catheterization-integrated swarming microrobotic platform for aneurysm on-demand embolization in physiological blood flow. A pH-responsive self-healing hydrogel doped with magnetic and imaging agents is developed as the embolic microgels, which enables long-term self-adhesion under biological condition in a controllable manner. The embolization strategy is initiated by catheter-assisted deployment of swarming microgels, followed by the application of external magnetic field for targeted aggregation of microrobots into aneurysm sac under the real-time guidance of ultrasound and fluoroscopy imaging. Mild acidic stimulus is applied to trigger the welding of microgels with satisfactory bio-/hemocompatibility and physical stability and realize complete embolization. Our work presents a promising connection between the design and control of microrobotic swarms toward practical applications in dynamic environments.
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Affiliation(s)
- Dongdong Jin
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518071, Guangdong, China
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Qinglong Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Kai Fung Chan
- Chow Yuk Ho Technology Centre for Innovative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Neng Xia
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Haojin Yang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Qianqian Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211000, China
| | - Simon Chun Ho Yu
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
- Vascular and Interventional Radiology Foundation Clinical Science Centre, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Li Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
- Chow Yuk Ho Technology Centre for Innovative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
- T-Stone Robotics Institute, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
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Sen N, Ajish JK, Singh KK, Chandwadkar P, Kumar M, Acharya C, Shenoy KT. Flow synthesis of poly(acrylamide-co-acrylic acid) microspheres in a microreactor: Experimental and CFD studies. J DISPER SCI TECHNOL 2023. [DOI: 10.1080/01932691.2022.2156531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Nirvik Sen
- Chemical Engineering Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - J. K. Ajish
- Radiation and Photo Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - K. K. Singh
- Chemical Engineering Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - P. Chandwadkar
- Molecular Biology Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - M. Kumar
- Radiation and Photo Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - C. Acharya
- Molecular Biology Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - K. T. Shenoy
- Chemical Engineering Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
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4
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Loss of multipotency in adipose-derived stem cells after culture in temperature-responsive injectable polymer hydrogels. Polym J 2022. [DOI: 10.1038/s41428-022-00739-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AbstractAdipose-derived stem cells (AdSCs), a type of mesenchymal stem cell, are expected to be applicable to regenerative medicine and cellular delivery systems. The maintenance of cell multipotency and control of the differentiation direction are important for these applications. However, the differentiation direction of these cells is widely believed to depend on the physical properties of their scaffold. In this study, we explored whether the multipotency of AdSCs, that is, their ability to differentiate into multiple cells, is maintained when they are removed from injectable polymer (IP) hydrogels with various degrees of cross-linking and induced to differentiate into osteoblasts and adipocytes. We confirmed that AdSCs cultured in IP hydrogels maintained an undifferentiated state. However, their differentiation into osteoblasts and adipocytes cannot be ensured; specifically, the multipotency of AdSCs may decrease when they are cultured in IP hydrogels. When cultured in an IP hydrogel with extreme softness and poor cell adhesion properties, the AdSCs remained in an undifferentiated state, but their multipotency was reduced. These results provide important insights into stem cell delivery systems using IP hydrogels.
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Griswold E, Cappello J, Ghandehari H. Silk-elastinlike protein-based hydrogels for drug delivery and embolization. Adv Drug Deliv Rev 2022; 191:114579. [PMID: 36306893 DOI: 10.1016/j.addr.2022.114579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 01/24/2023]
Abstract
Silk-Elastinlike Protein-Based Polymers (SELPs) can form thermoresponsive hydrogels that allow for the generation of in-situ drug delivery matrices. They are produced by recombinant techniques, enabling exact control of monomer sequence and polymer length. In aqueous solutions SELP strands form physical crosslinks as a function of temperature increase without the addition of crosslinking agents. Gelation kinetics, modulus of elasticity, pore size, drug release, biorecognition, and biodegradation of SELP hydrogels can be controlled by placement of amino acid residues at strategic locations in the polymer backbone. SELP hydrogels have been investigated for delivery of a variety of bioactive agents including small molecular weight drugs and fluorescent probes, oligomers of glycosaminoglycans, polymeric macromolecules, proteins, plasmid DNA, and viral gene delivery systems. In this review we provide a background for use of SELPs in matrix-mediated delivery and summarize recent investigations of SELP hydrogels for controlled delivery of bioactive agents as well as their use as liquid embolics.
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Affiliation(s)
- Ethan Griswold
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA; Utah Center of Nanomedicine, University of Utah, Salt Lake City, UT 84112, USA
| | - Joseph Cappello
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112, USA
| | - Hamidreza Ghandehari
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA; Utah Center of Nanomedicine, University of Utah, Salt Lake City, UT 84112, USA; Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112, USA.
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6
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He Y, Guo S, Chang R, Zhang D, Ren Y, Guan F, Yao M. Facile preparation of antibacterial hydrogel with multi-functions based on carboxymethyl chitosan and oligomeric procyanidin. RSC Adv 2022; 12:20897-20905. [PMID: 35919176 PMCID: PMC9301940 DOI: 10.1039/d2ra04049b] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 07/15/2022] [Indexed: 11/21/2022] Open
Abstract
Hydrogel-based antibacterial materials with multi-functions are of great significance for healthcare. Herein, a facile and one-step method was developed to fabricate an injectable hydrogel (named CMCS/OPC hydrogel) based on carboxymethyl chitosan (CMCS) and oligomeric procyanidin (OPC). In this hydrogel system, OPC serves as the dynamic crosslinker to bridge CMCS macromolecules mainly through dynamical hydrogen bonds, which endows this hydrogel with excellent injectable, self-healing, and adhesive abilities. In addition, due to the inherent antibacterial properties of CMCS and OPC, this hydrogel shows excellent antibacterial activity. Therefore, the well-designed CMCS/OPC hydrogel has great prospects as an antibacterial material in the biomedical field.
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Affiliation(s)
- Yuanmeng He
- School of Life Science, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China
| | - Shen Guo
- School of Life Science, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China
| | - Rong Chang
- School of Life Science, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China
| | - Dan Zhang
- School of Life Science, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China
| | - Yikun Ren
- School of Life Science, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China
| | - Fangxia Guan
- School of Life Science, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China
| | - Minghao Yao
- School of Life Science, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China
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Yan X, Sun T, Song Y, Peng W, Xu Y, Luo G, Li M, Chen S, Fang WW, Dong L, Xuan S, He T, Cao B, Lu Y. In situ Thermal-Responsive Magnetic Hydrogel for Multidisciplinary Therapy of Hepatocellular Carcinoma. NANO LETTERS 2022; 22:2251-2260. [PMID: 35254836 DOI: 10.1021/acs.nanolett.1c04413] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Current surgical single modality treatments for hepatocellular carcinoma (HCC) were restricted by recurrence, blood loss, significant trauma, and poor prognostic. Although multidisciplinary strategies for HCC treatment have been highly recommended by the clinical guidelines, there was limited choice of materials and treatments. Herein, we reported an in situ formed magnetic hydrogel with promising bioapplicable thermal-responsiveness, strong adhesion in wet conditions, high magnetic hyperthermia, and biocompatibility, leading to efficient HCC multidisciplinary treatment including postoperative treatment and transarterial embolization therapy. In vivo results indicated that this hydrogel could reduce the postoperative recurrence rate. The hemostatic ability of the thermal-responsive hydrogel was further demonstrated in both the liver scratch model and liver tumor resection. Computed tomography imaging suggested that the hydrogel could completely embolize the arterial vessels of rabbit liver tumor by vascular intervention operation, which could serve as multidisciplinary responsive materials to external magnetic field and body temperature for HCC treatment.
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Affiliation(s)
- Xu Yan
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Tianci Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Yonghong Song
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Wei Peng
- Department of General Surgery, Department of Interventional Radiology, Anhui No.2 Provincial People's Hospital, Hefei, 230041, China
| | - Yunjun Xu
- Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230036, China
| | - Guangyi Luo
- Department of General Surgery, Department of Interventional Radiology, Anhui No.2 Provincial People's Hospital, Hefei, 230041, China
| | - Min Li
- Department of General Surgery, Department of Interventional Radiology, Anhui No.2 Provincial People's Hospital, Hefei, 230041, China
| | - Sheng Chen
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Wei-Wei Fang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Liang Dong
- Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230036, China
| | - Shouhu Xuan
- Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230036, China
| | - Tao He
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Baoqiang Cao
- Department of General Surgery, Department of Interventional Radiology, Anhui No.2 Provincial People's Hospital, Hefei, 230041, China
| | - Yang Lu
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
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8
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Gu J, Feng L, Yan S, Yin J. In Situ Biomineralized Phosphorylated Poly(l-Glutamic Acid)/Sodium Alginate Injectable Hydrogels. J MACROMOL SCI B 2021. [DOI: 10.1080/00222348.2021.1995947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jinhong Gu
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, People's Republic of China
| | - Long Feng
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, People's Republic of China
| | - Shifeng Yan
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, People's Republic of China
| | - Jingbo Yin
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, People's Republic of China
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9
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Fujiwara S, Yoshizaki Y, Kuzuya A, Ohya Y. Temperature-responsive biodegradable injectable polymers with tissue adhesive properties. Acta Biomater 2021; 135:318-330. [PMID: 34461346 DOI: 10.1016/j.actbio.2021.08.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 11/18/2022]
Abstract
Injectable polymers (IPs) exhibiting in situ hydrogel formation have attracted attention as vascular embolization and postoperative adhesion prevention materials. While utilizing hydrogels for such purposes, it is essential to ensure that they have appropriate and controllable tissue adhesion property, as it is crucial for them to not detach from their deposited location in the blood vessel or abdominal cavity. Additionally, it is important to maintain gel state in vivo for the desired period at such locations, where large amounts of body fluid exist. We had previously reported on a biodegradable IP system exhibiting temperature-responsive gelation and subsequent covalent cross-link formation. We had utilized triblock copolymers of aliphatic polyester and poly(ethylene glycol) (tri-PCGs) and its derivative containing acrylate group at the termini (tri-PCG-Acryl), exhibiting a longer and more controllable duration time of the gel state. In this study, the introduction of aldehyde groups by the addition of aldehyde-modified Pluronic (PL-CHO) was performed for conferring controllable and appropriate tissue adhesive properties on these IP systems. The IP systems containing PL-CHO, which were not covalently incorporated into the hydrogel network, exhibited tissue adhesive properties through Schiff base formation. The adhesion strength could be controlled by the amount of PL-CHO added. The IP system showed good vascular embolization performance and pressure resistance in the blood vessels. The IP hydrogel remained at the administration site in the abdominal space for 2 days and displayed effective adhesion prevention performance. STATEMENT OF SIGNIFICANCE: Injectable polymers (IPs), which exhibit in situ hydrogel formation, are expected to be utilized as vascular embolization and postoperative adhesion prevention materials. The tissue adhesion properties of hydrogels are important for such applications. We succeeded in conferring tissue adhesion properties onto a previously reported IP system by mixing it with Pluronic modified with aldehyde groups (PL-CHO). The aldehyde groups allowed for the formation of Schiff bases at the tissue surfaces. The tissue adhesion property could be conveniently controlled by altering the amount of PL-CHO. We revealed that the in vitro embolization properties of IPs in blood vessels could be substantially improved by mixing with PL-CHO. The IP system containing PL-CHO also exhibited good in vivo performance for postoperative adhesion prevention.
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Affiliation(s)
- Soichiro Fujiwara
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Yuta Yoshizaki
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Akinori Kuzuya
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan; Kansai University Medical Polymer Research Center (KUMP-RC), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Yuichi Ohya
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan; Kansai University Medical Polymer Research Center (KUMP-RC), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
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Kim S, Nowicki KW, Gross BA, Wagner WR. Injectable hydrogels for vascular embolization and cell delivery: The potential for advances in cerebral aneurysm treatment. Biomaterials 2021; 277:121109. [PMID: 34530233 DOI: 10.1016/j.biomaterials.2021.121109] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 08/23/2021] [Accepted: 08/27/2021] [Indexed: 12/11/2022]
Abstract
Cerebral aneurysms are vascular lesions caused by the biomechanical failure of the vessel wall due to hemodynamic stress and inflammation. Aneurysmal rupture results in subarachnoid hemorrhage often leading to death or disability. Current treatment options include open surgery and minimally invasive endovascular options aimed at secluding the aneurysm from the circulation. Cerebral aneurysm embolization with appropriate materials is a therapeutic approach to prevent rupture and the resultant clinical sequelae. Metallic platinum coils are a typical, practical option to embolize cerebral aneurysms. However, the development of an alternative treatment modality is of interest because of poor occlusion permanence, coil migration, and coil compaction. Moreover, minimizing the implanted foreign materials during therapy is of importance not just to patients, but also to clinicians in the event an open surgical approach has to be pursued in the future. Polymeric injectable hydrogels have been investigated for transcatheter embolization and cell therapy with the potential for permanent aneurysm repair. This review focuses on how the combination of injectable embolic biomaterials and cell therapy may achieve minimally invasive remodeling of a degenerated cerebral artery with promise for superior outcomes in treatment of this devastating disease.
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Affiliation(s)
- Seungil Kim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kamil W Nowicki
- Department of Neurosurgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bradley A Gross
- Department of Neurosurgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
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11
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Liu M, Wu C, Ke L, Li Z, Wu YL. Emerging Biomaterials-Based Strategies for Inhibiting Vasculature Function in Cancer Therapy. SMALL METHODS 2021; 5:e2100347. [PMID: 34927997 DOI: 10.1002/smtd.202100347] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/20/2021] [Indexed: 06/14/2023]
Abstract
The constant feeding of oxygen and nutrients through the blood vasculature has a vital role in maintaining tumor growth. Interestingly, recent endeavors have shown that nanotherapeutics with the strategy to block tumor blood vessels feeding nutrients and oxygen for starvation therapy can be helpful in cancer treatment. However, this field has not been detailed. Hence, this review will present an exhaustive summary of the existing biomaterial based strategies to disrupt tumor vascular function for effective cancer treatment, including hydrogel or nanogel-mediated local arterial embolism, thrombosis activator loaded nano-material-mediated vascular occlusion and anti-vascular drugs that block tumor vascular function, which may be beneficial to the design of anti-cancer nanomedicine by targeting the tumor vascular system.
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Affiliation(s)
- Minting Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Caisheng 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, 361102, China
| | - Lingjie Ke
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Zhiguo Li
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, 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, 361102, China
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12
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Wang F, Chen J, Liu J, Zeng H. Cancer theranostic platforms based on injectable polymer hydrogels. Biomater Sci 2021; 9:3543-3575. [PMID: 33634800 DOI: 10.1039/d0bm02149k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Theranostic platforms that combine therapy with diagnosis not only prevent the undesirable biological responses that may occur when these processes are conducted separately, but also allow individualized therapies for patients. Polymer hydrogels have been employed to provide well-controlled drug release and targeted therapy in theranostics, where injectable hydrogels enable non-invasive treatment and monitoring with a single injection, offering greater patient comfort and efficient therapy. Efforts have been focused on applying injectable polymer hydrogels in theranostic research and clinical use. This review highlights recent progress in the design of injectable polymer hydrogels for cancer theranostics, particularly focusing on the elements/components of theranostic hydrogels, and their cross-linking strategies, structures, and performance with regard to drug delivery/tracking. Therapeutic agents and tracking modalities that are essential components of the theranostic platforms are introduced, and the design strategies, properties and applications of the injectable hydrogels developed via two approaches, namely chemical bonds and physical interactions, are described. The theranostic functions of the platforms are highly dependent on the architecture and components employed for the construction of hydrogels. Challenges currently presented by theranostic platforms based on injectable hydrogels are identified, and prospects of acquiring more comfortable and personalized therapies are proposed.
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Affiliation(s)
- Feifei Wang
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China. and Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Jingsi Chen
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Jifang Liu
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China.
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
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13
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Lim J, Choi G, Joo KI, Cha HJ, Kim J. Embolization of Vascular Malformations via In Situ Photocrosslinking of Mechanically Reinforced Alginate Microfibers using an Optical-Fiber-Integrated Microfluidic Device. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006759. [PMID: 33543521 DOI: 10.1002/adma.202006759] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/12/2020] [Indexed: 06/12/2023]
Abstract
Embolization, which is a minimally invasive endovascular treatment, is a safe and effective procedure for treating vascular malformations (e.g., aneurysms). Hydrogel microfibers obtained via spatiotemporally controllable in situ photocrosslinking exhibit great potential for embolizing aneurysms. However, this process is challenging because of the absence of biocompatible and morphologically stable hydrogels and the difficulty in continuously spinning the microfibers via in situ photocrosslinking in extreme endovascular environments such as those involving a tortuous geometry and high absorbance. A double-crosslinked alginate-based hydrogel with tantalum nanopowder (DAT) that exploits the synergistic effect of covalent crosslinking by visible-light irradiation and ionic crosslinking using Ca2+ , which is present in the blood, is developed in this study. Furthermore, an effective strategy to design and produce an optical-fiber-integrated microfluidic device (OFI-MD) that can continuously spin hydrogel microfibers via in situ photocrosslinking in extreme endovascular environments is proposed. As an embolic material, DAT exhibits promising characteristics such as radiopacity, nondissociation, nonswelling, and constant mechanical strength in blood, in addition to excellent cyto- and hemo-compatibilities. Using OFI-MD to spin DAT microfibers continuously can help fill aneurysms safely, uniformly, and completely within the endovascular simulator without generating microscopic fragments, which demonstrates its potential as an effective embolization strategy.
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Affiliation(s)
- Jongkyeong Lim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Geunho Choi
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Kye Il Joo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Joonwon Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
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14
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Xue C, Xie H, Eichenbaum J, Chen Y, Wang Y, van den Dolder FW, Lee J, Lee K, Zhang S, Sun W, Sheikhi A, Ahadian S, Ashammakhi N, Dokmeci MR, Kim HJ, Khademhosseini A. Synthesis of Injectable Shear-Thinning Biomaterials of Various Compositions of Gelatin and Synthetic Silicate Nanoplatelet. Biotechnol J 2020; 15:e1900456. [PMID: 32107862 PMCID: PMC7415533 DOI: 10.1002/biot.201900456] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/29/2020] [Indexed: 12/18/2022]
Abstract
Injectable shear-thinning biomaterials (iSTBs) have great potential for in situ tissue regeneration through minimally invasive therapeutics. Previously, an iSTB was developed by combining gelatin with synthetic silicate nanoplatelets (SNPs) for potential application to hemostasis and endovascular embolization. Hence, iSTBs are synthesized by varying compositions of gelatin and SNPs to navigate their material, mechanical, rheological, and bioactive properties. All compositions (each component percentage; 1.5-4.5%/total solid ranges; 3-9%) tested are injectable through both 5 Fr general catheter and 2.4 Fr microcatheter by manual pressure. In the results, an increase in gelatin contents causes decrease in swellability, increase in freeze-dried hydrogel scaffold porosity, increase in degradability and injection force during iSTB fabrication. Meanwhile, the amount of SNPs in composite hydrogels is mainly required to decrease degradability and increase shear thinning properties of iSTB. Finally, in vitro and in vivo biocompatibility tests show that the 1.5-4.5% range gelatin-SNP iSTBs are not toxic to the cells and animals. All results demonstrate that the iSTB can be modulated with specific properties for unmet clinical needs. Understanding of mechanical and biological consequences of the changing gelatin-SNP ratios through this study will shed light on the biomedical applications of iSTB on specific diseases.
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Affiliation(s)
- Chengbin Xue
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Key Laboratory of Neuroregeneration, Ministry of Education and Jiangsu Province, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, 226001, P. R. China
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, P. R. China
| | - Huifang Xie
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Carbohydrate Laboratory, School of Food Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
| | - James Eichenbaum
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yi Chen
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Beijing Biosis Healing Biological Technology Co., Ltd, Beijing, 102600, P. R. China
| | - Yonggang Wang
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Floor W van den Dolder
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Division of Heart and Lungs, Department of Cardiothoracic Surgery, University Medical Center Utrecht, Utrecht, GA, 3508, The Netherlands
- Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, CT, 3584, The Netherlands
| | - Junmin Lee
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - KangJu Lee
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Shiming Zhang
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Wujin Sun
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Amir Sheikhi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Samad Ahadian
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Nureddin Ashammakhi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiological Sciences, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Mehmet R Dokmeci
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiological Sciences, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Han-Jun Kim
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiological Sciences, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
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15
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Zhang K, Yang PP, He PP, Wen SF, Zou XR, Fan Y, Chen ZM, Cao H, Yang Z, Yue K, Zhang X, Zhang H, Wang L, Wang H. Peptide-Based Nanoparticles Mimic Fibrillogenesis of Laminin in Tumor Vessels for Precise Embolization. ACS NANO 2020; 14:7170-7180. [PMID: 32407069 DOI: 10.1021/acsnano.0c02110] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cancer therapeutic strategies based on angiogenesis attract great attention from fundamental and clinical research. Blocking oxygen and nutrition supply to tumor cells could inhibit the growth of tumors based on occlusion of blood vessels in the tumor. Herein, we report a dual-responsive peptide-based nanoparticle, mimicking the laminin fibrillogenesis specifically and highly efficiently in tumor vessels, resulting in the blockage of tumor vessels and the growth inhibition of tumors. The laminin mimic peptide (LMMP) is designed with a fibrillation sequence, a pH-responsive sequence, and a targeting sequence. The LMMP in nanoformulations is delivered to blood vessels in the tumors, where the microenvironment (pH and microthrombus) enable LMMP to process laminin fibrillogenesis, constructing fibrous networks. The laminin-like fibrous networks capture red blood cells etc., forming occlusion specifically in the tumor blood vessels to inhibit the growth of the tumor.
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Affiliation(s)
- Kuo Zhang
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Pei-Pei Yang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Ping-Ping He
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Shi-Fang Wen
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Xiao-Ran Zou
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Yu Fan
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Zi-Ming Chen
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Hui Cao
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhou Yang
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Kai Yue
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xinxin Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Hua Zhang
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Lei Wang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Hao Wang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- GBA Research Innovation Institute for Nanotechnology, Guangdong 510700, China
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16
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Synthesis and Characterization of Lyophilized Chitosan-Based Hydrogels Cross-Linked with Benzaldehyde for Controlled Drug Release. J CHEM-NY 2020. [DOI: 10.1155/2020/8747639] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
In this study, chitosan-based hydrogels were produced by incorporating three drugs with a different solubility into a polymer matrix. The lyophilized chitosan salt was prepared using an innovative and less-expensive synthetic process by the freeze-drying technique. Firstly, the three drugs (caffeine, ascorbic acid, and 5-fluorouracil (5-FU)) were selected as model drugs to test the in vitro release behavior of the hydrogel. The drugs were solubilized in chitosan salt, lyophilized, and cross-linked with benzaldehyde involving the formation of a Schiff base with (–C=N-) linkage to produce a physical hydrogel. Subsequently, the physicochemical properties of N-benzyl chitosan and lyophilized chitosan salt were evaluated by Fourier-transform infrared (FTIR) spectra, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The intrinsic viscosity of the conventional chitosan was determined by the Mark–Houwink–Sakurada equation. Moreover, the kinetics of hydrogel swelling and drug release were studied by the UV-visible method at physiological conditions (pH = 7.4 at 37°C). The results show that lyophilized N-benzyl chitosan had a maximum swelling ratio of 720 ± 2% by immersion in phosphate-buffered saline solutions (PBS) (pH = 7.4 at 37°C). In vitro drug releases were evaluated in PBS, and the obtained results show that the maximum drug release after 24 h was 42% for caffeine, 99% for 5-FU, and 94% for ascorbic acid. Then, to optimize the cumulative release of caffeine, Tween 20 was added and 98% as a release percentage was obtained. The drug-loading results were investigated with the Korsmeyer–Peppas kinetic model and applied to determine the drug release mechanism.
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17
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Poupart O, Schmocker A, Conti R, Moser C, Nuss KM, Grützmacher H, Mosimann PJ, Pioletti DP. In vitro Implementation of Photopolymerizable Hydrogels as a Potential Treatment of Intracranial Aneurysms. Front Bioeng Biotechnol 2020; 8:261. [PMID: 32318555 PMCID: PMC7146053 DOI: 10.3389/fbioe.2020.00261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 03/13/2020] [Indexed: 12/19/2022] Open
Abstract
Intracranial aneurysms are increasingly being treated with endovascular therapy, namely coil embolization. Despite being minimally invasive, partial occlusion and recurrence are more frequent compared to open surgical clipping. Therefore, an alternative treatment is needed, ideally combining minimal invasiveness and long-term efficiency. Herein, we propose such an alternative treatment based on an injectable, radiopaque and photopolymerizable polyethylene glycol dimethacrylate hydrogel. The rheological measurements demonstrated a viscosity of 4.86 ± 1.70 mPa.s, which was significantly lower than contrast agent currently used in endovascular treatment (p = 0.42), allowing the hydrogel to be injected through 430 μm inner diameter microcatheters. Photorheology revealed fast hydrogel solidification in 8 min due to the use of a new visible photoinitiator. The addition of an iodinated contrast agent in the precursor contributed to the visibility of the precursor injection under fluoroscopy. Using a customized light-conducting microcatheter and illumination module, the hydrogel was implanted in an in vitro silicone aneurysm model. Specifically, in situ fast and controllable injection and photopolymerization of the developed hydrogel is shown to be feasible in this work. Finally, the precursor and the polymerized hydrogel exhibit no toxicity for the endothelial cells. Photopolymerizable hydrogels are expected to be promising candidates for future intracranial aneurysm treatments.
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Affiliation(s)
- Oriane Poupart
- Laboratory of Biomechanical Orthopedics, EPFL, Lausanne, Switzerland
| | - Andreas Schmocker
- Laboratory of Applied Photonics Devices, EPFL, Lausanne, Switzerland
- Department of Chemistry and Applied Biosciences, ETH, Zurich, Switzerland
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Riccardo Conti
- Department of Chemistry and Applied Biosciences, ETH, Zurich, Switzerland
| | - Christophe Moser
- Laboratory of Applied Photonics Devices, EPFL, Lausanne, Switzerland
| | - Katja M. Nuss
- Musculoskeletal Research Unit, Department of Molecular Mechanisms of Disease, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | | | - Pascal J. Mosimann
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, Bern, Switzerland
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18
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Jensen MM, Barber ZB, Khurana N, Isaacson KJ, Steinhauff D, Green B, Cappello J, Pulsipher A, Ghandehari H, Alt JA. A dual-functional Embolization-Visualization System for Fluorescence image-guided Tumor Resection. Theranostics 2020; 10:4530-4543. [PMID: 32292513 PMCID: PMC7150499 DOI: 10.7150/thno.39700] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/08/2020] [Indexed: 02/06/2023] Open
Abstract
Rationale: Intraoperative bleeding impairs physicians' ability to visualize the surgical field, leading to increased risk of surgical complications and reduced outcomes. Bleeding is particularly challenging during endoscopic-assisted surgical resection of hypervascular tumors in the head and neck. A tool that controls bleeding while marking tumor margins has the potential to improve gross tumor resection, reduce surgical morbidity, decrease blood loss, shorten procedure time, prevent damage to surrounding tissues, and limit postoperative pain. Herein, we develop and characterize a new system that combines pre-surgical embolization with improved visualization for endoscopic fluorescence image-guided tumor resection. Methods: Silk-elastinlike protein (SELP) polymers were employed as liquid embolic vehicles for delivery of a clinically used near-infrared dye, indocyanine green (ICG). The biophysical properties of SELP, including gelation kinetics, modulus of elasticity, and viscosity, in response to ICG incorporation using rheology, were characterized. ICG release from embolic SELP was modeled in tissue phantoms and via fluorescence imaging. The embolic capability of the SELP-ICG system was then tested in a microfluidic model of tumor vasculature. Lastly, the cytotoxicity of the SELP-ICG system in L-929 fibroblasts and human umbilical vein endothelial cells (HUVEC) was assessed. Results: ICG incorporation into SELP accelerated gelation and increased its modulus of elasticity. The SELP embolic system released 83 ± 8% of the total ICG within 24 hours, matching clinical practice for pre-surgical embolization procedures. Adding ICG to SELP did not reduce injectability, but did improve the gelation kinetics. After simulated embolization, ICG released from SELP in tissue phantoms diffused a sufficient distance to deliver dye throughout a tumor. ICG-loaded SELP was injectable through a clinical 2.3 Fr microcatheter and demonstrated deep penetration into 50-µm microfluidic-simulated blood vessels with durable occlusion. Incorporation of ICG into SELP improved biocompatibility with HUVECs, but had no effect on L-929 cell viability. Principle Conclusions: We report the development and characterization of a new, dual-functional embolization-visualization system for improving fluorescence-imaged endoscopic surgical resection of hypervascular tumors.
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Affiliation(s)
- M. Martin Jensen
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84112 USA
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
| | - Zachary B. Barber
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84112 USA
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
| | - Nitish Khurana
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84112 USA
| | - Kyle J. Isaacson
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84112 USA
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
| | - Douglas Steinhauff
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84112 USA
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
| | - Bryant Green
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84112 USA
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
| | - Joseph Cappello
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84112 USA
| | - Abigail Pulsipher
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, UT 84113
| | - Hamidreza Ghandehari
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84112 USA
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84112 USA
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, UT 84113
| | - Jeremiah A. Alt
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84112 USA
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112 USA
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84112 USA
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, UT 84113
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19
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Sun Z, Song C, Wang C, Hu Y, Wu J. Hydrogel-Based Controlled Drug Delivery for Cancer Treatment: A Review. Mol Pharm 2020; 17:373-391. [PMID: 31877054 DOI: 10.1021/acs.molpharmaceut.9b01020] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
As an emerging drug carrier, hydrogels have been widely used for tumor drug delivery. A hydrogel drug carrier can cause less severe side effects than systemic chemotherapy and can achieve sustained delivery of a drug at tumor sites. In addition, hydrogels have excellent biocompatibility and biodegradability and lower toxicity than nanoparticle carriers. Smart hydrogels can respond to stimuli in the environment (e.g., heat, pH, light, and ultrasound), enabling in situ gelation and controlled drug release, which greatly enhance the convenience and efficiency of drug delivery. Here, we summarize the different sizes of hydrogels used for cancer treatment and their related delivery routes, discuss the design strategies for stimuli-responsive hydrogels, and review the research concerning smart hydrogels reported in the past few years.
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Affiliation(s)
- Zhaoyi Sun
- School of Chemistry and Chemical Engineering , Nanjing University , 210046 Nanjing , China
| | - Chengjun Song
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University and School of Life Sciences , Nanjing University , 210093 Nanjing , China
| | - Chao Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University and School of Life Sciences , Nanjing University , 210093 Nanjing , China
| | - Yiqiao Hu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University and School of Life Sciences , Nanjing University , 210093 Nanjing , China.,Jiangsu Key Laboratory for Nano Technology , Nanjing University , 210093 Nanjing , China.,Institute of Drug R&D , Medical School of Nanjing University , 210093 Nanjing , China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University and School of Life Sciences , Nanjing University , 210093 Nanjing , China.,Jiangsu Key Laboratory for Nano Technology , Nanjing University , 210093 Nanjing , China.,Institute of Drug R&D , Medical School of Nanjing University , 210093 Nanjing , China
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20
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Hu J, Albadawi H, Oklu R, Chong BW, Deipolyi AR, Sheth RA, Khademhosseini A. Advances in Biomaterials and Technologies for Vascular Embolization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901071. [PMID: 31168915 PMCID: PMC7014563 DOI: 10.1002/adma.201901071] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/24/2019] [Indexed: 05/03/2023]
Abstract
Minimally invasive transcatheter embolization is a common nonsurgical procedure in interventional radiology used for the deliberate occlusion of blood vessels for the treatment of diseased or injured vasculature. A wide variety of embolic agents including metallic coils, calibrated microspheres, and liquids are available for clinical practice. Additionally, advances in biomaterials, such as shape-memory foams, biodegradable polymers, and in situ gelling solutions have led to the development of novel preclinical embolic agents. The aim here is to provide a comprehensive overview of current and emerging technologies in endovascular embolization with respect to devices, materials, mechanisms, and design guidelines. Limitations and challenges in embolic materials are also discussed to promote advancement in the field.
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Affiliation(s)
- Jingjie Hu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Hassan Albadawi
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Rahmi Oklu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Brian W Chong
- Departments of Radiology and Neurological Surgery, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Amy R. Deipolyi
- Department of Interventional Radiology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical Center, 1275 York Avenue, New York, New York 10065, USA
| | - Rahul A. Sheth
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77054, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Radiological Sciences, Department of Chemical and Biomolecular Engineering, Center for Minimally Invasive Therapeutics, California Nanosystems Institute, University of California, 410 Westwood Plaza, Los Angeles, California 90095, USA
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21
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Temperature-responsive biodegradable injectable polymer systems with conveniently controllable properties. Polym J 2019. [DOI: 10.1038/s41428-019-0217-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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22
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Chen YP, Zhang JL, Zou Y, Wu YL. Recent Advances on Polymeric Beads or Hydrogels as Embolization Agents for Improved Transcatheter Arterial Chemoembolization (TACE). Front Chem 2019; 7:408. [PMID: 31231636 PMCID: PMC6560223 DOI: 10.3389/fchem.2019.00408] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 05/20/2019] [Indexed: 12/17/2022] Open
Abstract
Transcatheter arterial chemoembolization (TACE), aiming to block the hepatic artery for inhibiting tumor blood supply, became a popular therapy for hepatocellular carcinoma (HCC) patients. Traditional TACE formulation of anticancer drug emulsion in ethiodized oil (i.e., Lipiodol®) and gelatin sponge (i.e., Gelfoam®) had drawbacks on patient tolerance and resulted in undesired systemic toxicity, which were both significantly improved by polymeric beads, microparticles, or hydrogels by taking advantage of the elegant design of biocompatible or biodegradable polymers, especially amphiphilic polymers or polymers with both hydrophilic and hydrophobic chains, which could self-assemble into proposed microspheres or hydrogels. In this review, we aimed to summarize recent advances on polymeric embolization beads or hydrogels as TACE agents, with emphasis on their material basis of polymer architectures, which are important but have not yet been comprehensively summarized.
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Affiliation(s)
- Yun-Ping Chen
- Department of Oncology, The 910 Hospital of PLA, Quanzhou, China
| | - Jiang-Ling Zhang
- Department of Oncology, The 910 Hospital of PLA, Quanzhou, China
| | - Yanhong Zou
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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23
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Keussen I, Bengtsson J, Gavier-Widén D, Karlstam E. Uterine artery embolization in a sheep model: biodegradable versus non-degradable microspheres. Acta Radiol 2018; 59:1210-1217. [PMID: 29444587 DOI: 10.1177/0284185118757575] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Transarterial embolization with particles is a relatively common treatment method in both malignant and benign disorders. Permanent occlusion of the uterine arteries may sometimes be disadvantageous. Purpose To compare the local tissue effects, possible side effects, and extent of recanalization following uterine artery embolization, using either degradable or non-degradable microspheres in a sheep model. Material and Methods In 22 female sheep, the uterine artery (UA) was unilaterally, superselectively embolized, with either degradable starch microspheres-DSM (group A) or calibrated gelatin coated spherical shape tris-acryl microspheres-TGMS (group B). The completion of embolization was confirmed by angiography. The animals were kept in the animal research facilities for 14 days and sacrificed following new angiographic evaluation. Gross and histological examination of the uterus and other organs was performed. Results The procedure was successful in all animals. At final angiographic evaluation recanalization was found in 82% of the ewes in group A and in 18% in group B. At histopathological examination, tissue impairment was similar in both groups, whereas vascular changes were more pronounced in the TGMS-group. Conclusion Embolization with DSM was associated with significantly higher degree of recanalization, than after embolization with TGMS.
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Affiliation(s)
- Inger Keussen
- Skåne University Hospital, Center for Medical Imaging and Physiology, Lund, Sweden
- Faculty of Medicine, Department of Clinical Sciences Lund, Diagnostic Radiology, Lund University, Lund, Sweden
| | - Johan Bengtsson
- Skåne University Hospital, Center for Medical Imaging and Physiology, Lund, Sweden
- Faculty of Medicine, Department of Clinical Sciences Lund, Diagnostic Radiology, Lund University, Lund, Sweden
| | - Dolores Gavier-Widén
- Department of Pathology and Wildlife Diseases, National Veterinary Institute (SVA), Uppsala, Sweden
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Erika Karlstam
- Department of Pathology and Wildlife Diseases, National Veterinary Institute (SVA), Uppsala, Sweden
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24
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Zhou X, Li Y, Chen S, Fu YN, Wang S, Li G, Tao L, Wei Y, Wang X, Liang JF. Dynamic agent of an injectable and self-healing drug-loaded hydrogel for embolization therapy. Colloids Surf B Biointerfaces 2018; 172:601-607. [PMID: 30219579 DOI: 10.1016/j.colsurfb.2018.09.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/18/2018] [Accepted: 09/07/2018] [Indexed: 10/28/2022]
Abstract
Embolic agents are crucial for trans-catheter arterial embolization (TAE) in the treatment of various unresectable malignant tumors. Although solid particles, liquid oils, and some polymeric hydrogels have proved their capacities for embolic therapies, the low efficiency, time sensitivity, and cytotoxicity are still considered as challenges. In this study, we developed a three-component dynamic self-healing hydrogel to overcome these limitations. With the help of the Schiff-base bonding, both glycol-chitosan and carbazochrome, containing amine groups, react with dibenzaldehyde-terminated poly(ethylene-glycol) (DF-PEG), forming the dynamic self-healing hydrogels under a mild condition within 200 s. 1H NMR and rheology test were used to characterize the Schiff-base formation and mechanical strength. Controlled-release of carbazochrome from different gelator concentrations of DF-PEG was also studied. Furthermore, in vivo evaluation of the embolization on rats showed the superior embolic effects of the injectable and self-healing hydrogel. Therefore, this new dynamic agent demonstrated the potential for application as a simple, inexpensive, and tunable embolic agent for cancer treatment and drug delivery system.
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Affiliation(s)
- Xiaqing Zhou
- Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
| | - Yongsan Li
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China; The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Shuang Chen
- Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
| | - Ya-Nan Fu
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Shihui Wang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Guofeng Li
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Lei Tao
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Yen Wei
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Xing Wang
- Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Jun F Liang
- Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA.
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25
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Reinforcement of thermoplastic chitosan hydrogel using chitin whiskers optimized with response surface methodology. Carbohydr Polym 2018; 189:280-288. [DOI: 10.1016/j.carbpol.2018.01.083] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 11/20/2022]
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26
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Yoshida Y, Takai H, Kawahara K, Mitsumune S, Takata K, Kuzuya A, Ohya Y. Biodegradable injectable polymer systems exhibiting a longer and controllable duration time of the gel state. Biomater Sci 2018; 5:1304-1314. [PMID: 28594018 DOI: 10.1039/c7bm00357a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Here, we report biodegradable temperature-triggered covalent gelation systems exhibiting a longer and controllable duration time of the gel state by a "mixing strategy" utilizing a thiol-ene reaction. We synthesized a tri-block copolymer of poly(caprolactone-co-glycolic acid) and PEG (tri-PCG) as a temperature-responsive injectable polymer (IP) and attached acryloyl groups on both termini (tri-PCG-Acryl). A tri-PCG micelle solution containing hydrophobic hexa-functional polythiol (Solution-A) and a tri-PCG-Acryl micelle solution (Solution-B) were mixed together. After mixing, the solution was still in the sol state at r.t., but exhibited an irreversible sol-to-gel transition in response to temperature. The duration time of the gel state while soaking in PBS could be altered from 1 day to 93 days by changing the mixing ratio of Solution-A/B. The physical strengths of the hydrogels were also controllable by changing the mixing ratio. The IP system showed good biocompatibility and a long duration time of the gel state after subcutaneous implantation.
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Affiliation(s)
- Yasuyuki Yoshida
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
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27
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Xu L, Qiu L, Sheng Y, Sun Y, Deng L, Li X, Bradley M, Zhang R. Biodegradable pH-responsive hydrogels for controlled dual-drug release. J Mater Chem B 2018; 6:510-517. [DOI: 10.1039/c7tb01851g] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
pH-Responsive biodegradable hydrogels based on NIPAM/AA and a PLLA/PEG macro-crosslinker demonstrated pH mediated differential release of doxorubicin and tetracycline.
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Affiliation(s)
- Liang Xu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Linzi Qiu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Yang Sheng
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Yixin Sun
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Linhong Deng
- Institute of Biomedical Engineering and Health Sciences
- Changzhou University
- Changzhou 213164
- China
| | - Xinqing Li
- Department of Plastic and Aesthetic Surgery
- The Affiliated Second People's Hospital of Changzhou
- Nanjing Medical University
- Changzhou 213003
- China
| | - Mark Bradley
- School of Chemistry
- EaStCHEM
- University of Edinburgh
- Edinburgh
- UK
| | - Rong Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Changzhou University
- Changzhou 213164
- China
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28
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Avery RK, Albadawi H, Akbari M, Zhang YS, Duggan MJ, Sahani DV, Olsen BD, Khademhosseini A, Oklu R. An injectable shear-thinning biomaterial for endovascular embolization. Sci Transl Med 2017; 8:365ra156. [PMID: 27856795 DOI: 10.1126/scitranslmed.aah5533] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 10/28/2016] [Indexed: 01/11/2023]
Abstract
Improved endovascular embolization of vascular conditions can generate better patient outcomes and minimize the need for repeat procedures. However, many embolic materials, such as metallic coils or liquid embolic agents, are associated with limitations and complications such as breakthrough bleeding, coil migration, coil compaction, recanalization, adhesion of the catheter to the embolic agent, or toxicity. Here, we engineered a shear-thinning biomaterial (STB), a nanocomposite hydrogel containing gelatin and silicate nanoplatelets, to function as an embolic agent for endovascular embolization procedures. STBs are injectable through clinical catheters and needles and have hemostatic activity comparable to metallic coils, the current gold standard. In addition, STBs withstand physiological pressures without fragmentation or displacement in elastomeric channels in vitro and in explant vessels ex vivo. In vitro experiments also indicated that STB embolization did not rely on intrinsic thrombosis as coils did for occlusion, suggesting that the biomaterial may be suitable for use in patients on anticoagulation therapy or those with coagulopathy. Using computed tomography imaging, the biomaterial was shown to fully occlude murine and porcine vasculature in vivo and remain at the site of injection without fragmentation or nontarget embolization. Given the advantages of rapid delivery, in vivo stability, and independent occlusion that does not rely on intrinsic thrombosis, STBs offer an alternative gel-based embolic agent with translational potential for endovascular embolization.
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Affiliation(s)
- Reginald K Avery
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA.,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Hassan Albadawi
- Department of Surgery, Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Mohsen Akbari
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Michael J Duggan
- Department of Surgery, Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02144, USA
| | - Dushyant V Sahani
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Bradley D Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA. .,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Physics, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rahmi Oklu
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA. .,Division of Vascular and Interventional Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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29
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Sharifzadeh G, Hosseinkhani H. Biomolecule-Responsive Hydrogels in Medicine. Adv Healthc Mater 2017; 6. [PMID: 29057617 DOI: 10.1002/adhm.201700801] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/17/2017] [Indexed: 12/19/2022]
Abstract
Recent advances and applications of biomolecule-responsive hydrogels, namely, glucose-responsive hydrogels, protein-responsive hydrogels, and nucleic-acid-responsive hydrogels are highlighted. However, achieving the ultimate purpose of using biomolecule-responsive hydrogels in preclinical and clinical areas is still at the very early stage and calls for more novel designing concepts and advance ideas. On the way toward the real/clinical application of biomolecule-responsive hydrogels, plenty of factors should be extensively studied and examined under both in vitro and in vivo conditions. For example, biocompatibility, biointegration, and toxicity of biomolecule-responsive hydrogels should be carefully evaluated. From the living body's point of view, biocompatibility is seriously depended on the interactions at the tissue/polymer interface. These interactions are influenced by physical nature, chemical structure, surface properties, and degradation of the materials. In addition, the developments of advanced hydrogels with tunable biological and mechanical properties which cause no/low side effects are of great importance.
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Affiliation(s)
- Ghorbanali Sharifzadeh
- Department of Polymer Engineering; Faculty of Chemical Engineering; Universiti Teknologi Malaysia; 81310 Johor Malaysia
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30
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Bengtsson J, Cwikiel W, Sundgren PC, Karlstam E, Gavier-Widén D, Keussen I. The effects of uterine artery embolization with a new degradable microsphere in an experimental study. Acta Radiol 2017; 58:1334-1341. [PMID: 28273748 DOI: 10.1177/0284185117694510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Background Transarterial particle embolization is a common treatment of uterine fibroids, aiming to obtain ischemia resulting in shrinking of the fibroid with preservation of normal uterine tissue. Embolization with non-degradable microspheres is established, but causes permanent occlusion of the arteries, affecting both the uterus as well as the fibroids. Purpose To evaluate in vivo degradation, local tissue effects, and possible recanalization following intra-arterial deposition of the new, degradable starch microspheres (DSM), in a short-term experimental pilot study. Material and Methods Under general anesthesia, unilateral transarterial embolization of the uterine artery (UA) with DSM 500-700 µm was performed in five female sheep. The animals underwent renewed angiography at different intervals after embolization (19-65 h) and were subsequently sacrificed. Histological examination was performed. Results Embolization with absent flow in the UA could be completed in five of six animals. At final angiographic evaluation, recanalization of the embolized arteries was evident in three sheep. At the gross postmortem examination, edema and discoloration indicating ischemia of the uterus at the embolized side, was observed in all the sheep. At histopathological examination, different stages of DSM degradation in the arterial branches were observed in both endometrium and myometrium. Mild-to-moderate vasculitis and mild-to-extensive ischemic changes were present along with degeneration of the uterine glands. Conclusion This short-term pilot study proved efficacy of embolization with DSM causing ischemic changes in the embolized organ, but also degradation of the DSM with subsequent recanalization of the embolized arteries.
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Affiliation(s)
- Johan Bengtsson
- Skåne University Hospital, Center for Medical Imaging and Physiology, Lund, Sweden
- Faculty of Medicine, Department of Clinical Sciences Lund, Diagnostic Radiology, Lund University, Lund, Sweden
| | - Wojciech Cwikiel
- Skåne University Hospital, Center for Medical Imaging and Physiology, Lund, Sweden
- Faculty of Medicine, Department of Clinical Sciences Lund, Diagnostic Radiology, Lund University, Lund, Sweden
| | - Pia C Sundgren
- Skåne University Hospital, Center for Medical Imaging and Physiology, Lund, Sweden
- Faculty of Medicine, Department of Clinical Sciences Lund, Diagnostic Radiology, Lund University, Lund, Sweden
| | - Erika Karlstam
- Department of Pathology and Wildlife Diseases, SVA, Uppsala, Sweden
| | | | - Inger Keussen
- Skåne University Hospital, Center for Medical Imaging and Physiology, Lund, Sweden
- Faculty of Medicine, Department of Clinical Sciences Lund, Diagnostic Radiology, Lund University, Lund, Sweden
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31
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Takata K, Kawahara K, Yoshida Y, Kuzuya A, Ohya Y. Analysis of the sol-to-gel transition behavior of temperature-responsive injectable polymer systems by fluorescence resonance energy transfer. Polym J 2017. [DOI: 10.1038/pj.2017.33] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Yoshida Y, Kawahara K, Mitsumune S, Kuzuya A, Ohya Y. Injectable and biodegradable temperature-responsive mixed polymer systems providing variable gel-forming pH regions. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1158-1171. [PMID: 28271953 DOI: 10.1080/09205063.2017.1304170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Aqueous solutions of biodegradable polymers exhibiting sol-to-gel transitions in response to external stimuli such as temperature and pH are expected to be used as injectable polymers (IPs) for biomedical applications. In this study, we prepared novel biodegradable temperature-responsive IP systems providing variable gel-forming pH regions. We synthesized PCGA-b-PEG-b-PCGA (tri-PCG) and attached carboxylic acid or primary amine groups on both termini, tri-PCG-COOH and tri-PCG-NH2, and investigated the temperature-responsive sol-to-gel transition behavior of the mixtures of these two copolymers at various pHs. We found that the gel-forming pH region of the mixed system could be easily controlled by simply changing the mixing ratios of these polymers.
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Affiliation(s)
- Yasuyuki Yoshida
- a Faculty of Chemistry, Materials and Bioengineering, Department of Chemistry and Materials Engineering , Kansai University , Suita , Japan.,b Japan Society for the Promotion of Science , Tokyo , Japan
| | - Keisuke Kawahara
- a Faculty of Chemistry, Materials and Bioengineering, Department of Chemistry and Materials Engineering , Kansai University , Suita , Japan
| | - Shintaro Mitsumune
- a Faculty of Chemistry, Materials and Bioengineering, Department of Chemistry and Materials Engineering , Kansai University , Suita , Japan
| | - Akinori Kuzuya
- a Faculty of Chemistry, Materials and Bioengineering, Department of Chemistry and Materials Engineering , Kansai University , Suita , Japan.,c Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University , Suita , Japan.,d PREST, Japan Science and Technology Agency , Kawaguchi , Japan
| | - Yuichi Ohya
- a Faculty of Chemistry, Materials and Bioengineering, Department of Chemistry and Materials Engineering , Kansai University , Suita , Japan.,c Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University , Suita , Japan
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33
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Yoshida Y, Kawahara K, Inamoto K, Mitsumune S, Ichikawa S, Kuzuya A, Ohya Y. Biodegradable Injectable Polymer Systems Exhibiting Temperature-Responsive Irreversible Sol-to-Gel Transition by Covalent Bond Formation. ACS Biomater Sci Eng 2016; 3:56-67. [PMID: 33429686 DOI: 10.1021/acsbiomaterials.6b00581] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biodegradable injectable polymer (IP) systems exhibiting temperature-responsive sol-to-gel transitions between room temperature and body temperature have the potential for use in biomedical applications. However, gelation of such IP systems is a reversible process through physical cross-linking, and the hydrogels thus formed are likely to revert to the sol state under highly wet conditions after injection. In this study, a biodegradable IP system exhibiting temperature-responsive irreversible sol-to-gel transition by covalent bond formation was developed by simple mixing of polymers. A triblock copolymer of poly(caprolactone-co-glycolic acid) and poly(ethylene glycol) (tri-PCG) and tri-PCG with attached succinimide ester groups at both termini (tri-PCG-SA-OSu) were prepared and mixed together with a water-soluble polyamine (typically poly-l-lysine). The obtained IP formulation was in the sol state after mixing, but exhibited a rapid sol-to-gel transition within 30 s upon increasing the temperature to 37 °C. Once formed, the hydrogel did not revert to the sol state, even after cooling to 4 °C, because of the formation of covalent bonds upon transition. The obtained hydrogel soaked in phosphate buffered saline (PBS) exhibited a significantly longer duration time of the gel state. This IP system exhibiting a rapid and irreversible sol-to-gel transition is convenient for medical professionals and possesses great potential for use in biomedical devices for clinical applications such as drug delivery systems and antiadhesive materials.
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Affiliation(s)
- Yasuyuki Yoshida
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Keisuke Kawahara
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Kenta Inamoto
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Shintaro Mitsumune
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Shinya Ichikawa
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Akinori Kuzuya
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.,PREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
| | - Yuichi Ohya
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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34
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Poursaid A, Jensen MM, Huo E, Ghandehari H. Polymeric materials for embolic and chemoembolic applications. J Control Release 2016; 240:414-433. [PMID: 26924353 PMCID: PMC5001944 DOI: 10.1016/j.jconrel.2016.02.033] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 02/19/2016] [Accepted: 02/21/2016] [Indexed: 12/18/2022]
Abstract
Percutaneous transcatheter embolization procedures involve the selective occlusion of blood vessels. Occlusive agents, referred to as embolics, vary in material characteristics including chemical composition, mechanical properties, and the ability to concurrently deliver drugs. Commercially available polymeric embolics range from gelatin foam to synthetic polymers such as poly(vinyl alcohol). Current systems under investigation include tunable, bioresorbable microspheres composed of chitosan or poly(ethylene glycol) derivatives, in situ gelling liquid embolics with improved safety profiles, and radiopaque embolics that are trackable in vivo. This article reviews commercially available materials used for embolization as well as polymeric materials that are under investigation.
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Affiliation(s)
- Azadeh Poursaid
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA; Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA
| | - Mark Martin Jensen
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA; Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA
| | - Eugene Huo
- Veterans Affairs Hospital, Salt Lake City, UT 84108, USA
| | - Hamidreza Ghandehari
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA; Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA; Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA.
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35
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Chen Y, Yang Y, Liao Q, Yang W, Ma W, Zhao J, Zheng X, Yang Y, Chen R. Preparation, property of the complex of carboxymethyl chitosan grafted copolymer with iodine and application of it in cervical antibacterial biomembrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:247-258. [DOI: 10.1016/j.msec.2016.05.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 04/16/2016] [Accepted: 05/03/2016] [Indexed: 11/24/2022]
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Zhang W, Ren G, Xu H, Zhang J, Liu H, Mu S, Cai X, Wu T. Genipin cross-linked chitosan hydrogel for the controlled release of tetracycline with controlled release property, lower cytotoxicity, and long-term bioactivity. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1059-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Ricapito NG, Mares J, Petralia D, Putnam D. Insight into the Unexpectedly Rapid Degradation of Dihydroxyacetone-Based Hydrogels. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nicole G. Ricapito
- Robert Frederick Smith School of Chemical and Biomolecular Engineering; Cornell University; 113 Ho Plaza Ithaca NY 14853 USA
| | - Jonathan Mares
- Robert Frederick Smith School of Chemical and Biomolecular Engineering; Cornell University; 113 Ho Plaza Ithaca NY 14853 USA
| | - Daniel Petralia
- Robert Frederick Smith School of Chemical and Biomolecular Engineering; Cornell University; 113 Ho Plaza Ithaca NY 14853 USA
| | - David Putnam
- Robert Frederick Smith School of Chemical and Biomolecular Engineering; Cornell University; 113 Ho Plaza Ithaca NY 14853 USA
- Meinig School of Biomedical Engineering; Cornell University; 237 Tower Road Ithaca NY 14853 USA
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Biomaterial-based regional chemotherapy: Local anticancer drug delivery to enhance chemotherapy and minimize its side-effects. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:927-42. [DOI: 10.1016/j.msec.2016.01.063] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/19/2016] [Accepted: 01/24/2016] [Indexed: 02/06/2023]
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In vitro and in vivo evaluation of drug-eluting microspheres designed for transarterial chemoembolization therapy. Int J Pharm 2016; 503:150-62. [DOI: 10.1016/j.ijpharm.2016.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 03/02/2016] [Accepted: 03/04/2016] [Indexed: 12/25/2022]
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Lei K, Ma Q, Yu L, Ding J. Functional biomedical hydrogels for in vivo imaging. J Mater Chem B 2016; 4:7793-7812. [DOI: 10.1039/c6tb02019d] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In vivo imaging of biomedical hydrogels enables real-time and non-invasive visualization of the status of structure and function of hydrogels.
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Affiliation(s)
- Kewen Lei
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Qian Ma
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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Nguyen QV, Lee MS, Lym JS, Kim YI, Jae HJ, Lee DS. pH-Sensitive sulfamethazine-based hydrogels as potential embolic agents for transcatheter vascular embolization. J Mater Chem B 2016; 4:6524-6533. [DOI: 10.1039/c6tb01690a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After delivery through a catheter, a three-dimensional hydrogel network was formed upon the change of environmental pH, and thus block the targeted blood vessels, as presented in white color under the fluoroscopic angiogram.
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Affiliation(s)
- Quang Vinh Nguyen
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
| | - Myung Su Lee
- Department of Radiology
- Seoul National University Hospital
- Seoul
- Korea
| | - Jae Seung Lym
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
| | - Young Il Kim
- Department of Radiology
- Seoul National University Hospital
- Seoul
- Korea
| | - Hwan Jun Jae
- Department of Radiology
- Seoul National University Hospital
- Seoul
- Korea
| | - Doo Sung Lee
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
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Nguyen QV, Lym JS, Huynh CT, Kim BS, Jae HJ, Kim YI, Lee DS. A novel sulfamethazine-based pH-sensitive copolymer for injectable radiopaque embolic hydrogels with potential application in hepatocellular carcinoma therapy. Polym Chem 2016. [DOI: 10.1039/c6py01141a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
After transcatheter delivery through hepatic artery, a hydrogel can be formed within tumor vasculature by the decrease of environmental pH, block the blood vessel and control the release of loaded anticancer drugs.
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Affiliation(s)
- Quang Vinh Nguyen
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
| | - Jae Seung Lym
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
| | - Cong Truc Huynh
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
- Department of Biomedical Engineering
| | - Bong Sup Kim
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
| | - Hwan Jun Jae
- Department of Radiology
- Seoul National University Hospital
- Seoul
- Korea
| | - Young Il Kim
- Department of Radiology
- Seoul National University Hospital
- Seoul
- Korea
- Department of Radiology
| | - Doo Sung Lee
- Theranostic Macromolecules Research Center and School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Korea
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van Elk M, Ozbakir B, Barten-Rijbroek AD, Storm G, Nijsen F, Hennink WE, Vermonden T, Deckers R. Alginate Microspheres Containing Temperature Sensitive Liposomes (TSL) for MR-Guided Embolization and Triggered Release of Doxorubicin. PLoS One 2015; 10:e0141626. [PMID: 26561370 PMCID: PMC4641710 DOI: 10.1371/journal.pone.0141626] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/09/2015] [Indexed: 12/16/2022] Open
Abstract
Objective The objective of this study was to develop and characterize alginate microspheres suitable for embolization with on-demand triggered doxorubicin (DOX) release and whereby the microspheres as well as the drug releasing process can be visualized in vivo using MRI. Methods and Findings For this purpose, barium crosslinked alginate microspheres were loaded with temperature sensitive liposomes (TSL/TSL-Ba-ms), which release their payload upon mild hyperthermia. These TSL contained DOX and [Gd(HPDO3A)(H2O)], a T1 MRI contrast agent, for real time visualization of the release. Empty alginate microspheres crosslinked with holmium ions (T2* MRI contrast agent, Ho-ms) were mixed with TSL-Ba-ms to allow microsphere visualization. TSL-Ba-ms and Ho-ms were prepared with a homemade spray device and sized by sieving. Encapsulation of TSL in barium crosslinked microspheres changed the triggered release properties only slightly: 95% of the loaded DOX was released from free TSL vs. 86% release for TSL-Ba-ms within 30 seconds in 50% FBS at 42°C. TSL-Ba-ms (76 ± 41 μm) and Ho-ms (64 ± 29 μm) had a comparable size, which most likely will result in a similar in vivo tissue distribution after an i.v. co-injection and therefore Ho-ms can be used as tracer for the TSL-Ba-ms. MR imaging of a TSL-Ba-ms and Ho-ms mixture (ratio 95:5) before and after hyperthermia allowed in vitro and in vivo visualization of microsphere deposition (T2*-weighted images) as well as temperature-triggered release (T1-weighted images). The [Gd(HPDO3A)(H2O)] release and clusters of microspheres containing holmium ions were visualized in a VX2 tumor model in a rabbit using MRI. Conclusions In conclusion, these TSL-Ba-ms and Ho-ms are promising systems for real-time, MR-guided embolization and triggered release of drugs in vivo.
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Affiliation(s)
- Merel van Elk
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Burcin Ozbakir
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | | | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Frank Nijsen
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Wim E. Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Tina Vermonden
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Roel Deckers
- Imaging Division, University Medical Center Utrecht, Utrecht, the Netherlands
- * E-mail:
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Jiang H, Qin S, Dong H, Lei Q, Su X, Zhuo R, Zhong Z. An injectable and fast-degradable poly(ethylene glycol) hydrogel fabricated via bioorthogonal strain-promoted azide-alkyne cycloaddition click chemistry. SOFT MATTER 2015; 11:6029-6036. [PMID: 26132425 DOI: 10.1039/c5sm00508f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Biocompatible and degradable injectable materials prepared via bioorthogonal reactions are highly promising for biomedical applications because they can be formed in situ and administered in a minimally invasive way. In this work, a PEG-based injectable hydrogel was fabricated via a copper-free, strain-promoted azide-alkyne cycloaddition (SPAAC) click chemistry. Azide and cyclooctyne moieties on the PEG backbones underwent a rapid click reaction to trigger the formation of the hydrogel within several minutes. Resulting from the introduction of ester groups into the cross-linked network, the hydrogel presented pH-dependent hydrolysis and biological fast degradability. Good biocompatibility of the hydrogel was verified by in vitro cytotoxicity assay and in vivo studies. The hydrogel formed in situ after subcutaneously injecting the gel precursors into Kungming (KM) mice. The implanted hydrogel caused a mild inflammatory response in vivo, and the surrounding tissues fully recovered a week after the injection. The injectable and fast-degradable hydrogel fabricated by the bioorthogonal click reaction may be useful as biomaterials such as embolic agents for interventional therapy.
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Affiliation(s)
- Huafang Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
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Salis A, Rassu G, Budai-Szűcs M, Benzoni I, Csányi E, Berkó S, Maestri M, Dionigi P, Porcu EP, Gavini E, Giunchedi P. Development of thermosensitive chitosan/glicerophospate injectable in situ gelling solutions for potential application in intraoperative fluorescence imaging and local therapy of hepatocellular carcinoma: a preliminary study. Expert Opin Drug Deliv 2015; 12:1583-96. [PMID: 25937030 DOI: 10.1517/17425247.2015.1042452] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Thermosensitive chitosan/glycerophosphate (C/GP) solutions exhibiting sol-gel transition around body temperature were prepared to develop a class of injectable hydrogel platforms for the imaging and loco-regional treatment of hepatocellular carcinoma (HCC). Indocyanine green (ICG) was loaded in the thermosensitive solutions in order to assess their potential for the detection of tumor nodules by fluorescence. METHODS The gel formation of these formulations as well as their gelling time, injectability, compactness and resistance of gel structure, gelling temperature, storage conditions, biodegradability, and in vitro dye release behavior were investigated. Ex vivo studies were carried out for preliminary evaluation using an isolated bovine liver. RESULTS Gel strengths and gelation rates increased with the cross-link density between C and GP. These behaviors are more evident for C/GP solutions, which displayed a gel-like precipitation at 4°C. Furthermore, formulations with the lowest cross-link density between C and GP exhibited the best injectability due to a lower resistance to flow. The loading of the dye did not influence the gelation rate. ICG was not released from the hydrogels because of a strong electrostatic interaction between C and ICG. Ex vivo preliminary studies revealed that these injectable formulations remain in correspondence of the injected site. CONCLUSIONS The developed ICG-loaded hydrogels have the potential for intraoperative fluorescence imaging and local therapy of HCC as embolic agents. They form in situ compact gels and have a good potential for filling vessels and/or body cavities.
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Affiliation(s)
- Andrea Salis
- a 1 University of Sassari, Department of Chemistry and Pharmacy , Sassari, Italy
| | - Giovanna Rassu
- a 1 University of Sassari, Department of Chemistry and Pharmacy , Sassari, Italy
| | - Maria Budai-Szűcs
- b 2 University of Szeged, Department of Pharmaceutical Technology , H-6720, Szeged, Eötvös str. 6, Hungary
| | - Ilaria Benzoni
- c 3 IRCCS Policlinico San Matteo Foundation , Pavia, Italy
| | - Erzsébet Csányi
- b 2 University of Szeged, Department of Pharmaceutical Technology , H-6720, Szeged, Eötvös str. 6, Hungary
| | - Szilvia Berkó
- b 2 University of Szeged, Department of Pharmaceutical Technology , H-6720, Szeged, Eötvös str. 6, Hungary
| | | | - Paolo Dionigi
- d 4 University of Pavia, IRCCS Policlinico San Matteo Foundation, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences , Pavia, Italy
| | | | - Elisabetta Gavini
- a 1 University of Sassari, Department of Chemistry and Pharmacy , Sassari, Italy
| | - Paolo Giunchedi
- f 6 University of Sassari, Department of Chemistry and Pharmacy , via Muroni 23/a, 07100 Sassari, Italy +39079228754 ; +39079228732 ;
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Li Y, Liu C, Tan Y, Xu K, Lu C, Wang P. In situ hydrogel constructed by starch-based nanoparticles via a Schiff base reaction. Carbohydr Polym 2014; 110:87-94. [DOI: 10.1016/j.carbpol.2014.03.058] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 03/17/2014] [Accepted: 03/22/2014] [Indexed: 12/18/2022]
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Vashist A, Vashist A, Gupta YK, Ahmad S. Recent advances in hydrogel based drug delivery systems for the human body. J Mater Chem B 2014; 2:147-166. [DOI: 10.1039/c3tb21016b] [Citation(s) in RCA: 320] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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