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Lin D, Lei L, Shi S, Li X. Stimulus‐Responsive Hydrogel for Ophthalmic Drug Delivery. Macromol Biosci 2019; 19:e1900001. [DOI: 10.1002/mabi.201900001] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 03/29/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Deqing Lin
- Institute of Biomedical EngineeringSchool of Ophthalmology and Optometry and Eye HospitalWenzhou Medical University 270 Xueyuan Road Wenzhou 325027 P. R. China
| | - Lei Lei
- Institute of Biomedical EngineeringSchool of Ophthalmology and Optometry and Eye HospitalWenzhou Medical University 270 Xueyuan Road Wenzhou 325027 P. R. China
| | - Shuai Shi
- Institute of Biomedical EngineeringSchool of Ophthalmology and Optometry and Eye HospitalWenzhou Medical University 270 Xueyuan Road Wenzhou 325027 P. R. China
| | - Xingyi Li
- Institute of Biomedical EngineeringSchool of Ophthalmology and Optometry and Eye HospitalWenzhou Medical University 270 Xueyuan Road Wenzhou 325027 P. R. China
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Bai Y, Li S, Li X, Han X, Li Y, Zhao J, Zhang J, Hou X, Yuan X. An injectable robust denatured albumin hydrogel formed via double equilibrium reactions. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:662-678. [DOI: 10.1080/09205063.2019.1600821] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yu Bai
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Sidi Li
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Xueping Li
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Xing Han
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Yang Li
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Jin Zhao
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Juntao Zhang
- First Teaching Hospital of Tianjin, University of Traditional Chinese Medicine, Tianjin, China
| | - Xin Hou
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
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Kumar Meena L, Rather H, Kedaria D, Vasita R. Polymeric microgels for bone tissue engineering applications – a review. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1570512] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lalit Kumar Meena
- Biomaterials & Biomimetics laboratory, School of Life Sciences, Central University of Gujarat, Gandhinagar, India
| | - Hilal Rather
- Biomaterials & Biomimetics laboratory, School of Life Sciences, Central University of Gujarat, Gandhinagar, India
| | - Dhaval Kedaria
- Biomaterials & Biomimetics laboratory, School of Life Sciences, Central University of Gujarat, Gandhinagar, India
| | - Rajesh Vasita
- Biomaterials & Biomimetics laboratory, School of Life Sciences, Central University of Gujarat, Gandhinagar, India
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Hokmabad VR, Davaran S, Aghazadeh M, Alizadeh E, Salehi R, Ramazani A. Effect of incorporating Elaeagnus angustifolia extract in PCL-PEG-PCL nanofibers for bone tissue engineering. Front Chem Sci Eng 2019. [DOI: 10.1007/s11705-018-1742-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Injectable thermosensitive hydrogel systems based on functional PEG/PCL block polymer for local drug delivery. J Control Release 2019; 297:60-70. [PMID: 30684513 DOI: 10.1016/j.jconrel.2019.01.026] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/03/2019] [Accepted: 01/18/2019] [Indexed: 12/26/2022]
Abstract
Injectable in situ thermosensitive hydrogels have potential applications in tissue engineering and drug delivery. The hydrogel formulations exist as aqueous solutions at room temperature but rapidly solidify into gels at 37 °C in situ, making them highly suitable for administering drugs in a minimally invasive manner to the target organ(s). The hydrogel formed with nanoparticles assembled with amphiphilic polymer blocks of polyethyleneglycol (PEG) and biodegradable polycaprolactone (PCL) have been tested as platforms for targeted and sustained drug delivery, and have shown encouraging results. In this review, we summarize the influence of the molecular weight, PEG/PCL ratio and functional structure of hydrophobic PCL blocks on the critical gelation temperature, gelling behavior and drug release kinetics of the hydrogels. The current studies on the biomedical applications of thermosensitive PEG/PCL hydrogels have also been discussed.
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56
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Li A, Xie J, Li J. Recent advances in functional nanostructured materials for bone-related diseases. J Mater Chem B 2019; 7:509-527. [PMID: 32254786 DOI: 10.1039/c8tb02812e] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bone-related diseases seriously threaten people's health and research studies have been dedicated towards searching for new and effective treatment methods. Nanotechnologies have opened up a new field in recent decades and nanostructured materials, which exist in a variety of forms, are considered to be promising materials in this field. This article reviews the most recent progress in the development of nanostructured materials for bone-related diseases, including osteoporosis, osteoarthritis, bone metastasis, osteomyelitis, myeloma, and bone defects. We highlight the advantages and functions of nanostructured materials, including sustained release, bone targeting, scaffolding in bone tissue engineering, etc., in bone-related diseases. We also include the remaining challenges of these emerging materials.
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Affiliation(s)
- Anqi Li
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China.
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57
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Wang Y, Zhu W, Xiao K, Li Z, Ma Q, Li W, Shen S, Weng X. Self-healing and injectable hybrid hydrogel for bone regeneration of femoral head necrosis and defect. Biochem Biophys Res Commun 2019; 508:25-30. [DOI: 10.1016/j.bbrc.2018.11.097] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/09/2018] [Accepted: 11/15/2018] [Indexed: 01/22/2023]
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58
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Nguyen DT, Kim BS, Lee DS, Thambi T, Huynh DP. Amino acid functionalized pH- and temperature-sensitive biodegradable injectable hydrogels: synthesis, physicochemical characterization and in vivo degradation kinetics. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1522503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dang Tri Nguyen
- National Key Laboratory of Polymer and Composites Materials, Ho Chi Minh University of Technology, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Bong Sup Kim
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea
| | - Doo Sung Lee
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea
| | - Thavasyappan Thambi
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea
| | - Dai Phu Huynh
- National Key Laboratory of Polymer and Composites Materials, Ho Chi Minh University of Technology, Vietnam National University, Ho Chi Minh City, Vietnam
- Faculty of Material Technology, Ho Chi Minh City University of Technology, Vietnam National University, Ho Chi Minh City, Vietnam
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59
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Bai X, Gao M, Syed S, Zhuang J, Xu X, Zhang XQ. Bioactive hydrogels for bone regeneration. Bioact Mater 2018; 3:401-417. [PMID: 30003179 PMCID: PMC6038268 DOI: 10.1016/j.bioactmat.2018.05.006] [Citation(s) in RCA: 273] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/09/2018] [Accepted: 05/10/2018] [Indexed: 01/11/2023] Open
Abstract
Bone self-healing is limited and generally requires external intervention to augment bone repair and regeneration. While traditional methods for repairing bone defects such as autografts, allografts, and xenografts have been widely used, they all have corresponding disadvantages, thus limiting their clinical use. Despite the development of a variety of biomaterials, including metal implants, calcium phosphate cements (CPC), hydroxyapatite, etc., the desired therapeutic effect is not fully achieved. Currently, polymeric scaffolds, particularly hydrogels, are of interest and their unique configurations and tunable physicochemical properties have been extensively studied. This review will focus on the applications of various cutting-edge bioactive hydrogels systems in bone regeneration, as well as their advantages and limitations. We will examine the composition and defects of the bone, discuss the current biomaterials for bone regeneration, and classify recently developed polymeric materials for hydrogel synthesis. We will also elaborate on the properties of desirable hydrogels as well as the fabrication techniques and different delivery strategies. Finally, the existing challenges, considerations, and the future prospective of hydrogels in bone regeneration will be outlined.
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Affiliation(s)
- Xin Bai
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Mingzhu Gao
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Sahla Syed
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Jerry Zhuang
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Xiaoyang Xu
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Xue-Qing Zhang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
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60
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Wang S, Zhao Z, Yang Y, Mikos AG, Qiu Z, Song T, Cui F, Wang X, Zhang C. A high-strength mineralized collagen bone scaffold for large-sized cranial bone defect repair in sheep. Regen Biomater 2018; 5:283-292. [PMID: 30338126 PMCID: PMC6184757 DOI: 10.1093/rb/rby020] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/14/2018] [Accepted: 07/18/2018] [Indexed: 12/21/2022] Open
Abstract
Large-sized cranial bone defect repair presents a great challenge in the clinic. The ideal cranioplasty materials to realize the functional and cosmetic recovery of the defect must have sufficient mechanical support, excellent biocompatibility, good osseointegration and biodegradability as well. In this study, a high-strength mineralized collagen (MC) bone scaffold was developed with biomimetic composition, microstructure and mechanical properties for the repair of sheep large-sized cranial bone defects in comparison with two traditional cranioplasty materials, polymethyl methacrylate and titanium mesh. The compact MC scaffold showed no distinct pore structure and therefore possessed good mechanical properties. The strength and elastic modulus of the scaffold were much higher than those of natural cancellous bone and slightly lower than those of natural compact bone. In vitro cytocompatibility evaluation revealed that the human bone marrow mesenchymal stem cells (hBMSC) had good viability, attachment and proliferation on the compact MC scaffold indicating its excellent biocompatibility. An adult sheep cranial bone defect model was constructed to evaluate the performances of these cranioplasty materials in repairing the cranial bone defects. The results were investigated by gross observation, computed tomography scanning as well as histological assessments. The in vivo evaluations indicated that compact MC scaffold showed notable osteoconductivity and osseointegration with surrounding cranial bone tissues by promoting bone regeneration. Our results suggested that the compact MC scaffold has a promising potential for large-sized cranial bone defect repair.
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Affiliation(s)
- Shuo Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, China
| | - Zhijun Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Baotou Medical School, Baotou, China
| | - Yongdong Yang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, China
- Dongzhimen Hospital Affiliated Beijing University of Chinese Medicine, Beijing, China
| | | | - Zhiye Qiu
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing, China
| | - Tianxi Song
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing, China
| | - Fuzhai Cui
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, China
| | - Chunyang Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Baotou Medical School, Baotou, China
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61
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Wang D, Yang X, Liu Q, Yu L, Ding J. Enzymatically cross-linked hydrogels based on a linear poly(ethylene glycol) analogue for controlled protein release and 3D cell culture. J Mater Chem B 2018; 6:6067-6079. [PMID: 32254817 DOI: 10.1039/c8tb01949e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Injectable and enzyme-mediated cross-linked hydrogels are promising biomedical materials. However, although poly(ethylene glycol) (PEG) is a popular basic component of synthetic hydrogels, only a few PEG-based enzymatically cross-linked hydrogels have been developed based on branched PEG. Compared with branched PEG, linear PEGs with different molecular weights are readily available and low-cost, while the poor capacity for post-polymerization modifications of linear PEG limited its application on a greater scale. Herein, a linear PEG-based analogue functionalized with multiple phenolic hydroxyl moieties, PEGDA-DTT-HPA, was designed and synthesized via Michael-type polyaddition combined with Steglich esterification. Environmentally friendly hydrogels composed of PEGDA-DTT-HPA were facilely formed under the catalysis of horseradish peroxidase (HRP) in the presence of hydrogen peroxide (H2O2). The gelation time and mechanical strengths of hydrogels were found to be adjusted independently by altering the concentrations of HRP and H2O2, respectively. The hydrogels were further demonstrated as protein drug and cell carriers using bovine serum albumin (BSA) and lentivirus-mediated LifeAct-EGFP overexpressed human mesenchymal stem cells (hMSCs-LifeAct-EGFP), respectively. The BSA-loaded hydrogel systems exhibited a sustained drug release over 3 weeks; the encapsulated hMSCs showed good viability over all time points assessed. Consequently, the current study opens new avenues for the design of PEG-based injectable hydrogels and the PEGDA-DTT-HPA hydrogel has great potential for applications in drug delivery, 3D cell culture and tissue regeneration.
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Affiliation(s)
- Danni Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
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62
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Li W, Li W, Kuang Y, Yang T, Zhu J, Xu Z, Yuan X, Li M, Zhang Z, Yang Y. Toxicity Assessment of PEG-PCCL Nanoparticles and Preliminary Investigation on Its Anti-tumor Effect of Paclitaxel-Loading. NANOSCALE RESEARCH LETTERS 2018; 13:253. [PMID: 30143890 PMCID: PMC6108981 DOI: 10.1186/s11671-018-2615-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 06/25/2018] [Indexed: 02/05/2023]
Abstract
The efficiency of single treatment of conventional chemotherapy drugs is unpleasantly reduced by the physiological barriers of tumors. In this regard, nanoparticles have become attractive for achieving such medical purpose of targeted cancer therapy by delivering anti-tumor agents to the needed area. A novel drug deliverer, poly (ethylene glycol) carboxyl-poly (ε-caprolactone) (PEG-PCCL), has been reported to be highly hydrophilic and stable, while little is known about its organic toxicity. This study focused on systemic toxicity assessments of PEG-PCCL. The pharmacokinetics of PTX-loaded PEG-PCCL (PEG-PCCL/PTX) and its anti-tumor effect were preliminarily investigated. In the present work, PEG-PCCL was characterized by laser particle size analyzer and transmission electron microscopy. The cytotoxicity was investigated by MTT test, LDH leakage assay, immunofluorescence, and transmission electron microscopy. Hemolysis, phlebitis, and organ toxicity tests were performed to demonstrate the biocompatibility and acute biotoxicity. H22 tumor-bearing mice were used to evaluate the pharmacokinetics of the micells of PEG-PCCL/PTX and its anti-tumor effect. The results showed that the size of PEG-PCCL nanospheres was 97 ± 2.6 nm. PEG-PCCL treatment showed little cytotoxicity and good biocompatibility, and did not exhibit organ toxicity. PTX-loading efficiency was 49.98%. The pharmacokinetic study on H22 tumor-bearing mice revealed that PEG-PCCL/PTX has higher stability and slower release than PTX alone. Together, these results suggest that PEG-PCCL nanosphere has little toxicity to organisms and is a potential candidate of biocompatible drug vehicle for hydrophobic drugs.
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Affiliation(s)
- Wei Li
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China.,Department of Burns surgery, Sichuan Academy of Medical Sciences and Sichuan Province People's Hospital, Chengdu, 610072, China
| | - Wanyi Li
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Yu Kuang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Ting Yang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Jie Zhu
- Department of Microbiology, Guizhou Medical University, Guiyang, 55000, China
| | - Zilin Xu
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Xiang Yuan
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Mingyuan Li
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Zhongwei Zhang
- ICU, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuan Yang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China.
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Tian BP, Li F, Li R, Hu X, Lai TW, Lu J, Zhao Y, Du Y, Liang Z, Zhu C, Shao W, Li W, Chen ZH, Sun X, Chen X, Ying S, Ling D, Shen H. Nanoformulated ABT-199 to effectively target Bcl-2 at mitochondrial membrane alleviates airway inflammation by inducing apoptosis. Biomaterials 2018; 192:429-439. [PMID: 30500724 DOI: 10.1016/j.biomaterials.2018.06.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 02/07/2023]
Abstract
Elimination of airway inflammatory cells is essential for asthma control. As Bcl-2 protein is highly expressed on the mitochondrial outer membrane in inflammatory cells, we chose a Bcl-2 inhibitor, ABT-199, which can inhibit airway inflammation and airway hyperresponsiveness by inducing inflammatory cell apoptosis. Herein, we synthesized a pH-sensitive nanoformulated Bcl-2 inhibitor (Nf-ABT-199) that could specifically deliver ABT-199 to the mitochondria of bronchial inflammatory cells. The proof-of-concept study of an inflammatory cell mitochondria-targeted therapy using Nf-ABT-199 was validated in a mouse model of allergic asthma. Nf-ABT-199 was proven to significantly alleviate airway inflammation by effectively inducing eosinophil apoptosis and inhibiting both inflammatory cell infiltration and mucus hypersecretion. In addition, the nanocarrier or Nf-ABT-199 showed no obvious influence on cell viability, airway epithelial barrier and liver function, implying excellent biocompatibility and with non-toxic effect. The nanoformulated Bcl-2 inhibitor Nf-ABT-199 accumulates in the mitochondria of inflammatory cells and efficiently alleviates allergic asthma.
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Affiliation(s)
- Bao-Ping Tian
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China; Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Fangyuan Li
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Ruiqing Li
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xi Hu
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Tian-Wen Lai
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Jingxiong Lu
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yun Zhao
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Yang Du
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Zeyu Liang
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Chen Zhu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Wei Shao
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Wen Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Xiaolian Sun
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Songmin Ying
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China; Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Huahao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China; State Key Laboratory of Respiratory Diseases, Guangzhou, Guangdong 510120, China.
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Chatterjee S, Hui PCL, Kan CW. Thermoresponsive Hydrogels and Their Biomedical Applications: Special Insight into Their Applications in Textile Based Transdermal Therapy. Polymers (Basel) 2018; 10:E480. [PMID: 30966514 PMCID: PMC6415431 DOI: 10.3390/polym10050480] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 04/21/2018] [Accepted: 04/25/2018] [Indexed: 01/19/2023] Open
Abstract
Various natural and synthetic polymers are capable of showing thermoresponsive properties and their hydrogels are finding a wide range of biomedical applications including drug delivery, tissue engineering and wound healing. Thermoresponsive hydrogels use temperature as external stimulus to show sol-gel transition and most of the thermoresponsive polymers can form hydrogels around body temperature. The availability of natural thermoresponsive polymers and multiple preparation methods of synthetic polymers, simple preparation method and high functionality of thermoresponsive hydrogels offer many advantages for developing drug delivery systems based on thermoresponsive hydrogels. In textile field applications of thermoresponsive hydrogels, textile based transdermal therapy is currently being applied using drug loaded thermoresponsive hydrogels. The current review focuses on the preparation, physico-chemical properties and various biomedical applications of thermoresponsive hydrogels based on natural and synthetic polymers and especially, their applications in developing functionalized textiles for transdermal therapies. Finally, future prospects of dual responsive (pH/temperature) hydrogels made by these polymers for textile based transdermal treatments are mentioned in this review.
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Affiliation(s)
- Sudipta Chatterjee
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Patrick Chi-Leung Hui
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Chi-Wai Kan
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
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65
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Thermoresponsive Hydrogels and Their Biomedical Applications: Special Insight into Their Applications in Textile Based Transdermal Therapy. Polymers (Basel) 2018. [PMID: 30966514 DOI: 10.3390/polym10050480]] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Various natural and synthetic polymers are capable of showing thermoresponsive properties and their hydrogels are finding a wide range of biomedical applications including drug delivery, tissue engineering and wound healing. Thermoresponsive hydrogels use temperature as external stimulus to show sol-gel transition and most of the thermoresponsive polymers can form hydrogels around body temperature. The availability of natural thermoresponsive polymers and multiple preparation methods of synthetic polymers, simple preparation method and high functionality of thermoresponsive hydrogels offer many advantages for developing drug delivery systems based on thermoresponsive hydrogels. In textile field applications of thermoresponsive hydrogels, textile based transdermal therapy is currently being applied using drug loaded thermoresponsive hydrogels. The current review focuses on the preparation, physico-chemical properties and various biomedical applications of thermoresponsive hydrogels based on natural and synthetic polymers and especially, their applications in developing functionalized textiles for transdermal therapies. Finally, future prospects of dual responsive (pH/temperature) hydrogels made by these polymers for textile based transdermal treatments are mentioned in this review.
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66
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Puertas-Bartolomé M, Benito-Garzón L, Olmeda-Lozano M. In Situ Cross-Linkable Polymer Systems and Composites for Osteochondral Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1058:327-355. [DOI: 10.1007/978-3-319-76711-6_15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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67
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Rao ZK, Chen R, Zhu HY, Li Y, Liu Y, Hao JY. Carboxylic Terminated Thermo-Responsive Copolymer Hydrogel and Improvement in Peptide Release Profile. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E338. [PMID: 29495382 PMCID: PMC5872917 DOI: 10.3390/ma11030338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/22/2018] [Accepted: 02/22/2018] [Indexed: 02/04/2023]
Abstract
To improve the release profile of peptide drugs, thermos-responsive triblock copolymer poly (ε-caprolactone-co-p-dioxanone)-b-poly (ethylene glycol)-b-poly (ε-caprolactone-co-p-dioxanone) (PECP) was prepared and end capped by succinic anhydride to give its carboxylic terminated derivative. Both PCEP block copolymer and its end group modified derivative showed temperature-dependent reversible sol-gel transition in water. The carboxylic end group could significantly decrease the sol-gel transition temperature by nearly 10 °C and strengthen the gel due to enhanced intermolecular force among triblock copolymer chains. Furthermore, compared with the original PECP triblock copolymer, HOOC-PECP-COOH copolymer displayed a retarded and sustained release profile for leuprorelin acetate over one month while effectively avoiding the initial burst. The controlled release was believed to be related to the formation of conjugated copolymer-peptide pair by ionic interaction and enhanced solubility of drug molecules into the hydrophobic domains of the hydrogel. Therefore, carboxyl terminated HOOC-PECP-COOH hydrogel was a promising and well-exhibited sustained release carrier for peptide drugs with the advantage of being able to develop injectable formulation by simple mixing.
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Affiliation(s)
- Zi-Kun Rao
- School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, No.4, Section 2, North Jian'she Road, Chengdu 610054, China.
| | - Rui Chen
- School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, No.4, Section 2, North Jian'she Road, Chengdu 610054, China.
| | - Hong-Yu Zhu
- School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, No.4, Section 2, North Jian'she Road, Chengdu 610054, China.
| | - Yang Li
- School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, No.4, Section 2, North Jian'she Road, Chengdu 610054, China.
| | - Yu Liu
- School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, No.4, Section 2, North Jian'she Road, Chengdu 610054, China.
| | - Jian-Yuan Hao
- School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, No.4, Section 2, North Jian'she Road, Chengdu 610054, China.
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68
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Hong Y, Xi Y, Zhang J, Wang D, Zhang H, Yan N, He S, Du J. Polymersome–hydrogel composites with combined quick and long-term antibacterial activities. J Mater Chem B 2018; 6:6311-6321. [PMID: 32254621 DOI: 10.1039/c8tb01608a] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Intrinsically antibacterial polymersomes loaded with antibiotics were incorporated into hydrogels, exhibiting quick and long-acting antibacterial activity.
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Affiliation(s)
- Yuanxiu Hong
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University School of Medicine
- Shanghai 200072
- China
| | - Yuejing Xi
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education
- Tongji University
- Shanghai 201804
- China
| | - Junxue Zhang
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education
- Tongji University
- Shanghai 201804
- China
| | - Dongdong Wang
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University School of Medicine
- Shanghai 200072
- China
| | - Hailong Zhang
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University School of Medicine
- Shanghai 200072
- China
| | - Ning Yan
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University School of Medicine
- Shanghai 200072
- China
| | - Shisheng He
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University School of Medicine
- Shanghai 200072
- China
| | - Jianzhong Du
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University School of Medicine
- Shanghai 200072
- China
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69
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He Y, Zhu T, Liu L, Shi X, Lin Z. Modifying collagen with alendronate sodium for bone regeneration applications. RSC Adv 2018; 8:16762-16772. [PMID: 35540497 PMCID: PMC9080299 DOI: 10.1039/c8ra01872c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 04/26/2018] [Indexed: 11/21/2022] Open
Abstract
Phosphorylated materials are attractive candidates for bone regeneration because they may facilitate the construction of a phosphorylated bone extracellular matrix (ECM) to build a beneficial environment for bone formation. Here, we designed and synthesized a new phosphorylated material, collagen type I phosphorylated with alendronate sodium (Col-Aln), based on the biodegradable osteoconductive collagen backbone. Col-Aln can distinctly accelerate in vitro mineralization in simulated body fluid. Col-Aln showed good biocompatibility with bone marrow mesenchymal stem cells (BMSCs) and promoted their adhesion as well as the osteogenic differentiation of BMSCs more effectively than did pure collagen. Furthermore, collagen and Col-Aln scaffolds implanted into a critical-sized rat cranial defect for 4 and 8 weeks were shown to degrade in vivo and helped to facilitate bone growth in the defect, while the phosphate-containing Col-Aln scaffold significantly promoted new bone formation. Col-Aln provides a new strategy to integrate bioactive phosphate molecules via covalent grafting onto biopolymers and has promise for bone regeneration applications. Efficient covalent bonding with phosphate-containing alendronate prompts the fast mineralization and osteoinduction of the collagen scaffold.![]()
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Affiliation(s)
- Yingcong He
- Department of Operative Dentistry and Endodontics
- Guanghua School of Stomatology
- Sun Yat-sen University
- Guangdong Provincial Key Laboratory of Stomatology
- Guangzhou
| | - Ting Zhu
- Department of Operative Dentistry and Endodontics
- Guanghua School of Stomatology
- Sun Yat-sen University
- Guangdong Provincial Key Laboratory of Stomatology
- Guangzhou
| | - Lei Liu
- National Engineering Research Centre for Tissue Restoration and Reconstruction
- School of Material Science and Engineering
- South China University of Technology
- Guangzhou
- PR China
| | - Xuetao Shi
- National Engineering Research Centre for Tissue Restoration and Reconstruction
- School of Material Science and Engineering
- South China University of Technology
- Guangzhou
- PR China
| | - Zhengmei Lin
- Department of Operative Dentistry and Endodontics
- Guanghua School of Stomatology
- Sun Yat-sen University
- Guangdong Provincial Key Laboratory of Stomatology
- Guangzhou
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70
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Taurin S, Almomen AA, Pollak T, Kim SJ, Maxwell J, Peterson CM, Owen SC, Janát-Amsbury MM. Thermosensitive hydrogels a versatile concept adapted to vaginal drug delivery. J Drug Target 2017; 26:533-550. [PMID: 29096548 DOI: 10.1080/1061186x.2017.1400551] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Vaginal drug delivery represents an attractive strategy for local and systemic delivery of drugs otherwise poorly absorbed after oral administration. The rather dense vascular network, mucus permeability and the physiological phenomenon of the uterine first-pass effect can all be exploited for therapeutic benefit. However, several physiological factors such as an acidic pH, constant secretion, and turnover of mucus as well as varying thickness of the vaginal epithelium can impact sustained drug delivery. In recent years, polymers have been designed to tackle challenges mentioned above. In particular, thermosensitive hydrogels hold great promise due to their stability, biocompatibility, adhesion properties and adjustable drug release kinetics. Here, we discuss the physiological and anatomical uniqueness of the vaginal environment and how it impacts the safe and efficient vaginal delivery and also reviewed several thermosensitive hydrogels deemed suitable for vaginal drug delivery by addressing specific characteristics, which are essential to engage the vaginal environment successfully.
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Affiliation(s)
- Sebastien Taurin
- a Department of Obstetrics and Gynecology, Division of Gynecologic Oncology , University of Utah Health Sciences , Salt Lake City , UT , USA
| | - Aliyah A Almomen
- a Department of Obstetrics and Gynecology, Division of Gynecologic Oncology , University of Utah Health Sciences , Salt Lake City , UT , USA.,b Department of Pharmaceutics and Pharmaceutical Chemistry , University of Utah , Salt Lake City , UT , USA
| | - Tatianna Pollak
- a Department of Obstetrics and Gynecology, Division of Gynecologic Oncology , University of Utah Health Sciences , Salt Lake City , UT , USA
| | - Sun Jin Kim
- b Department of Pharmaceutics and Pharmaceutical Chemistry , University of Utah , Salt Lake City , UT , USA
| | - John Maxwell
- a Department of Obstetrics and Gynecology, Division of Gynecologic Oncology , University of Utah Health Sciences , Salt Lake City , UT , USA
| | - C Matthew Peterson
- c Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology , University of Utah Health Science Center , Salt Lake City , UT , USA
| | - Shawn C Owen
- b Department of Pharmaceutics and Pharmaceutical Chemistry , University of Utah , Salt Lake City , UT , USA.,d Department of Bioengineering , University of Utah , Salt Lake City , UT , USA
| | - Margit M Janát-Amsbury
- a Department of Obstetrics and Gynecology, Division of Gynecologic Oncology , University of Utah Health Sciences , Salt Lake City , UT , USA.,b Department of Pharmaceutics and Pharmaceutical Chemistry , University of Utah , Salt Lake City , UT , USA.,c Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology , University of Utah Health Science Center , Salt Lake City , UT , USA.,d Department of Bioengineering , University of Utah , Salt Lake City , UT , USA
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71
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Fabrication and evaluation of thermosensitive chitosan/collagen/α, β-glycerophosphate hydrogels for tissue regeneration. Carbohydr Polym 2017; 167:145-157. [DOI: 10.1016/j.carbpol.2017.03.053] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/11/2017] [Accepted: 03/15/2017] [Indexed: 11/18/2022]
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72
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Non-invasive monitoring of in vivo degradation of a radiopaque thermoreversible hydrogel and its efficacy in preventing post-operative adhesions. Acta Biomater 2017; 55:396-409. [PMID: 28363786 DOI: 10.1016/j.actbio.2017.03.042] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 03/07/2017] [Accepted: 03/27/2017] [Indexed: 01/19/2023]
Abstract
In vivo behavior of hydrogel-based biomaterials is very important for rational design of hydrogels for various biomedical applications. Herein, we developed a facile method for in situ fabrication of radiopaque hydrogel. An iodinated functional diblock copolymer of poly(ethylene glycol) and aliphatic polyester was first synthesized by coupling the hydroxyl end of the diblock copolymer with 2,3,5-triiodobenzoic acid (TIB) and then a radiopaque thermoreversible hydrogel was obtained by mixing it with the virgin diblock copolymer. A concentrated aqueous solution of the copolymer blend was injectable at room temperature and spontaneously turned into an in situ hydrogel at body temperature after injection. The introduction of TIB moieties affords the capacity of X-ray opacity, enabling in vivo visualization of the hydrogel using Micro-CT. A rat model with cecum and abdominal defects was utilized to evaluate the efficacy of the radiopaque hydrogel in the prevention of post-operative adhesions, and a significant reduction of the post-operative adhesion formation was confirmed. Meanwhile, the maintenance of the radiopaque hydrogel in the abdomen after administration was non-destructively detected via Micro-CT scanning. The reconstructed three-dimensional images showed that the radiopaque hydrogel with an irregular morphology was located on the injured abdominal wall. The time-dependent profile of the volume of the radiopaque hydrogel determined by Micro-CT imaging was well consistent with the trend obtained from the dissection observation. Therefore, the radiopaque thermoreversible hydrogel can serve as a potential visualized biomedical implant and this practical mixing approach is also useful for further extension into the in vivo monitoring of other biomaterials. STATEMENT OF SIGNIFICANCE While a variety of biomaterials have been extensively studied, it is rare to monitor in vivo degradation and medical efficacy of a material after being implanted deeply into the body. Herein, the radiopaque thermoreversible hydrogel developed by us not only holds desirable performance on the prevention of post-operative abdominal adhesions, but also allows non-invasive monitoring of its in vivo degradation with CT imaging in a real-time, quantitative and three-dimensional manner. The methodology based on CT imaging provides important insights into the in vivo fate of the hydrogel after being deeply implanted into mammals for different biomedical applications and significantly reduces the amount of animals sacrificed.
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73
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Wang S, Yang Y, Zhao Z, Wang X, Mikos AG, Qiu Z, Song T, Sun X, Zhao L, Zhang C, Cui F. Mineralized Collagen-Based Composite Bone Materials for Cranial Bone Regeneration in Developing Sheep. ACS Biomater Sci Eng 2017; 3:1092-1099. [DOI: 10.1021/acsbiomaterials.7b00159] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shuo Wang
- State
Key Laboratory of New Ceramics and Fine Processing, School of Materials
Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yongdong Yang
- State
Key Laboratory of New Ceramics and Fine Processing, School of Materials
Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Zhijun Zhao
- Department
of Neurosurgery, The First Affiliated Hospital of Baotou Medical School, Baotou 014010, China
| | - Xiumei Wang
- State
Key Laboratory of New Ceramics and Fine Processing, School of Materials
Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Antonios G. Mikos
- Department
of Bioengineering, Rice University, Houston, Texas 77030, United States
| | - Zhiye Qiu
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China
| | - Tianxi Song
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China
| | - Xiaodan Sun
- State
Key Laboratory of New Ceramics and Fine Processing, School of Materials
Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Lingyun Zhao
- State
Key Laboratory of New Ceramics and Fine Processing, School of Materials
Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Chunyang Zhang
- Department
of Neurosurgery, The First Affiliated Hospital of Baotou Medical School, Baotou 014010, China
| | - Fuzhai Cui
- State
Key Laboratory of New Ceramics and Fine Processing, School of Materials
Science and Engineering, Tsinghua University, Beijing 100084, China
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74
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Phan VG, Thambi T, Gil MS, Lee DS. Temperature and pH-sensitive injectable hydrogels based on poly(sulfamethazine carbonate urethane) for sustained delivery of cationic proteins. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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75
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Sun J, Liu X, Lei Y, Tang M, Dai Z, Yang X, Yu X, Yu L, Sun X, Ding J. Sustained subconjunctival delivery of cyclosporine A using thermogelling polymers for glaucoma filtration surgery. J Mater Chem B 2017; 5:6400-6411. [DOI: 10.1039/c7tb01556a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We successfully developed a subconjunctival delivery system of CsA using an injectable thermogel to inhibit post-surgical scar formation after glaucoma filtration surgery.
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76
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Kim YJ, Matsunaga YT. Thermo-responsive polymers and their application as smart biomaterials. J Mater Chem B 2017; 5:4307-4321. [DOI: 10.1039/c7tb00157f] [Citation(s) in RCA: 324] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review summarises smart thermo-responsive polymeric materials with reversible and ‘on–off’ remotely switchable properties for a wide range of biomedical and biomaterials applications.
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Affiliation(s)
- Young-Jin Kim
- Center for International Research on Integrative Biomedical Systems (CIBiS)
- The University of Tokyo
- Tokyo 153-8505
- Japan
- Bioengineering Laboratory
| | - Yukiko T. Matsunaga
- Center for International Research on Integrative Biomedical Systems (CIBiS)
- The University of Tokyo
- Tokyo 153-8505
- Japan
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77
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Thambi T, Phan VHG, Lee DS. Stimuli-Sensitive Injectable Hydrogels Based on Polysaccharides and Their Biomedical Applications. Macromol Rapid Commun 2016; 37:1881-1896. [DOI: 10.1002/marc.201600371] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 08/16/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Thavasyappan Thambi
- School of Chemical Engineering; Theranostic Macromolecules Research Center; Sungkyunkwan University; Suwon Republic of Korea
| | - V. H. Giang Phan
- School of Chemical Engineering; Theranostic Macromolecules Research Center; Sungkyunkwan University; Suwon Republic of Korea
| | - Doo Sung Lee
- School of Chemical Engineering; Theranostic Macromolecules Research Center; Sungkyunkwan University; Suwon Republic of Korea
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78
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Ci T, Shen Y, Cui S, Liu R, Yu L, Ding J. Achieving High Drug Loading and Sustained Release of Hydrophobic Drugs in Hydrogels through In Situ Crystallization. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600299] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/24/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Tianyuan Ci
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Yuning Shen
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Shuquan Cui
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Ruili Liu
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 China
- Key Laboratory of Smart Drug Delivery of Ministry of Education; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 China
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79
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Chen Y, Li Y, Shen W, Li K, Yu L, Chen Q, Ding J. Controlled release of liraglutide using thermogelling polymers in treatment of diabetes. Sci Rep 2016; 6:31593. [PMID: 27531588 PMCID: PMC4987673 DOI: 10.1038/srep31593] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 07/25/2016] [Indexed: 12/27/2022] Open
Abstract
In treatment of diabetes, it is much desired in clinics and challenging in pharmaceutics and material science to set up a long-acting drug delivery system. This study was aimed at constructing a new delivery system using thermogelling PEG/polyester copolymers. Liraglutide, a fatty acid-modified antidiabetic polypeptide, was selected as the model drug. The thermogelling polymers were presented by poly(ε-caprolactone-co-glycolic acid)-poly(ethylene glycol)-poly(ε-caprolactone-co-glycolic acid) (PCGA-PEG-PCGA) and poly(lactic acid-co-glycolic acid)-poly(ethylene glycol)-poly(lactic acid-co-glycolic acid) (PLGA-PEG-PLGA). Both the copolymers were soluble in water, and their concentrated solutions underwent temperature-induced sol-gel transitions. The drug-loaded polymer solutions were injectable at room temperature and gelled in situ at body temperature. Particularly, the liraglutide-loaded PCGA-PEG-PCGA thermogel formulation exhibited a sustained drug release manner over one week in both in vitro and in vivo tests. This feature was attributed to the combined effects of an appropriate drug/polymer interaction and a high chain mobility of the carrier polymer, which facilitated the sustained diffusion of drug out of the thermogel. Finally, a single subcutaneous injection of this formulation showed a remarkably improved glucose tolerance of mice for one week. Hence, the present study not only developed a promising long-acting antidiabetic formulation, but also put forward a combined strategy for controlled delivery of polypeptide.
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Affiliation(s)
- Yipei Chen
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Yuzhuo Li
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Wenjia Shen
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Kun Li
- National Pharmaceutical Engineering Research Center, China State Institute of Pharmaceutical Industry, Shanghai, 200437, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Qinghua Chen
- National Pharmaceutical Engineering Research Center, China State Institute of Pharmaceutical Industry, Shanghai, 200437, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
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80
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Wang X, Hu H, Wang W, Lee KI, Gao C, He L, Wang Y, Lai C, Fei B, Xin JH. Antibacterial modification of an injectable, biodegradable, non-cytotoxic block copolymer-based physical gel with body temperature-stimulated sol-gel transition and controlled drug release. Colloids Surf B Biointerfaces 2016; 143:342-351. [PMID: 27022875 DOI: 10.1016/j.colsurfb.2016.02.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 12/31/2015] [Accepted: 02/04/2016] [Indexed: 12/25/2022]
Abstract
Biomaterials are being extensively used in various biomedical fields; however, they are readily infected with microorganisms, thus posing a serious threat to the public health care. We herein presented a facile route to the antibacterial modification of an important A-B-A type biomaterial using poly (ethylene glycol) methyl ether (mPEG)- poly(ε-caprolactone) (PCL)-mPEG as a typical model. Inexpensive, commercial bis(2-hydroxyethyl) methylammonium chloride (DMA) was adopted as an antibacterial unit. The effective synthesis of the antibacterial copolymer mPEG-PCL-∼∼∼-PCL-mPEG (where ∼∼∼ denotes the segment with DMA units) was well confirmed by FTIR and (1)H NMR spectra. At an appropriate modification extent, the DMA unit could render the copolymer mPEG-PCL-∼∼∼-PCL-mPEG highly antibacterial, but did not largely alter its fascinating intrinsic properties including the thermosensitivity (e.g., the body temperature-induced sol-gel transition), non-cytotoxicity, and controlled drug release. A detailed study on the sol-gel-sol transition behavior of different copolymers showed that an appropriate extent of modification with DMA retained a sol-gel-sol transition, despite the fact that a too high extent caused a loss of sol-gel-sol transition. The hydrophilic and hydrophobic balance between mPEG and PCL was most likely broken upon a high extent of quaternization due to a large disturbance effect of DMA units at a large quantity (as evidenced by the heavily depressed PCL segment crystallinity), and thus the micelle aggregation mechanism for the gel formation could not work anymore, along with the loss of the thermosensitivity. The work presented here is highly expected to be generalized for synthesis of various block copolymers with immunity to microorganisms. Light may also be shed on understanding the phase transition behavior of various multiblock copolymers.
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Affiliation(s)
- Xiaowen Wang
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Huawen Hu
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Wenyi Wang
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Ka I Lee
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Chang Gao
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Liang He
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Yuanfeng Wang
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Chuilin Lai
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Bin Fei
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - John H Xin
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China.
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81
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Zhong Q, Li W, Su X, Li G, Zhou Y, Kundu SC, Yao J, Cai Y. Degradation pattern of porous CaCO 3 and hydroxyapatite microspheres in vitro and in vivo for potential application in bone tissue engineering. Colloids Surf B Biointerfaces 2016; 143:56-63. [DOI: 10.1016/j.colsurfb.2016.03.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/23/2016] [Accepted: 03/06/2016] [Indexed: 12/31/2022]
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82
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Tsou YH, Khoneisser J, Huang PC, Xu X. Hydrogel as a bioactive material to regulate stem cell fate. Bioact Mater 2016; 1:39-55. [PMID: 29744394 PMCID: PMC5883979 DOI: 10.1016/j.bioactmat.2016.05.001] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 04/27/2016] [Accepted: 05/02/2016] [Indexed: 02/08/2023] Open
Abstract
The encapsulation of stem cells in a hydrogel substrate provides a promising future in biomedical applications. However, communications between hydrogels and stem cells is complicated; various factors such as porosity, different polymer types, stiffness, compatibility and degradation will lead to stem cell survival or death. Hydrogels mimic the three-dimensional extracellular matrix to provide a friendly environment for stem cells. On the other hand, stem cells can sense the surroundings to make the next progression, stretching out, proliferating or just to remain. As such, understanding the correlation between stem cells and hydrogels is crucial. In this Review, we first discuss the varying types of the hydrogels and stem cells, which are most commonly used in the biomedical fields and further investigate how hydrogels interact with stem cells from the perspective of their biomedical application, while providing insights into the design and development of hydrogels for drug delivery, tissue engineering and regenerative medicine purpose. In addition, we compare the results such as stiffness, degradation time and pore size as well as peptide types of hydrogels from respected journals. We also discussed most recently magnificent materials and their effects to regulate stem cell fate. Hydrogels as Extracellular Matrix (ECM) mimics stem cells proliferation and differentiation. Discuss how hydrogels interact with stem cells from the perspective of their biomedical applications. Recent magnificent materials and their effects to regulate stem cells fate.
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Affiliation(s)
- Yung-Hao Tsou
- Department of Chemical, Biological, and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Joe Khoneisser
- Department of Chemical, Biological, and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Ping-Chun Huang
- Department of Chemical, Biological, and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Xiaoyang Xu
- Department of Chemical, Biological, and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
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83
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Zhang Y, Wang M, Ye J, Lang M. Pendant groups fine-tuning thermal gelation of poly(ε
-caprolactone)-b
-poly(ethylene glycol)-b
-poly(ε-caprolactone) aqueous solution. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28134] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yan Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology; Shanghai 200237 China
| | - Miao Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology; Shanghai 200237 China
| | - Jinhai Ye
- Institute of Stomatology, School of Stomatology, Nanjing Medical University; 136 Hanzhong Road Nanjing Jiangsu Province 210029 China
| | - Meidong Lang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology; Shanghai 200237 China
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84
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Fu C, Lin X, Wang J, Zheng X, Li X, Lin Z, Lin G. Injectable micellar supramolecular hydrogel for delivery of hydrophobic anticancer drugs. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:73. [PMID: 26886821 DOI: 10.1007/s10856-016-5682-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 01/27/2016] [Indexed: 06/05/2023]
Abstract
In this paper, an injectable micellar supramolecular hydrogel composed of α-cyclodextrin (α-CD) and monomethoxy poly(ethylene glycol)-b-poly(ε-caplactone) (MPEG5000-PCL5000) micelles was developed by a simple method for hydrophobic anticancer drug delivery. By mixing α-CD aqueous solution and MPEG5000-PCL5000 micelles, an injectable micellar supramolecular hydrogel could be formed under mild condition due to the inclusion complexation between α-CD and MPEG segment of MPEG5000-PCL5000 micelles. The resultant supramolecular hydrogel was thereafter characterized by X-ray diffraction (XRD) and Scanning electron microscopy (SEM). The effect of α-CD amount on the gelation time, mechanical strength and thixotropic property was studied by a rheometer. Payload of hydrophobic paclitaxel (PTX) to supramolecular hydrogel was achieved by encapsulation of PTX into MPEG5000-PCL5000 micelles prior mixing with α-CD aqueous solution. In vitro release study showed that the release behavior of PTX from hydrogel could be modulated by change the α-CD amount in hydrogel. Furthermore, such supramolecular hydrogel could enhance the biological activity of encapsulated PTX compared to free PTX, as indicated by in vitro cytotoxicity assay. All these results indicated that the developed micellar supramolecular hydrogel might be a promising injectable drug delivery system for anticancer therapy.
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Affiliation(s)
- CuiXiang Fu
- Department of Pharmacy, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China
| | - XiaoXiao Lin
- Department of Pharmacy, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China
| | - Jun Wang
- Department of Pharmacy, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China
| | - XiaoQun Zheng
- Department of Laboratory Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China
| | - XingYi Li
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China
| | - ZhengFeng Lin
- Department of Pharmacy, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China
| | - GuangYong Lin
- Department of Pharmacy, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China.
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85
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Tollemar V, Collier ZJ, Mohammed MK, Lee MJ, Ameer GA, Reid RR. Stem cells, growth factors and scaffolds in craniofacial regenerative medicine. Genes Dis 2016; 3:56-71. [PMID: 27239485 PMCID: PMC4880030 DOI: 10.1016/j.gendis.2015.09.004] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 09/22/2015] [Indexed: 02/08/2023] Open
Abstract
Current reconstructive approaches to large craniofacial skeletal defects are often complicated and challenging. Critical-sized defects are unable to heal via natural regenerative processes and require surgical intervention, traditionally involving autologous bone (mainly in the form of nonvascularized grafts) or alloplasts. Autologous bone grafts remain the gold standard of care in spite of the associated risk of donor site morbidity. Tissue engineering approaches represent a promising alternative that would serve to facilitate bone regeneration even in large craniofacial skeletal defects. This strategy has been tested in a myriad of iterations by utilizing a variety of osteoconductive scaffold materials, osteoblastic stem cells, as well as osteoinductive growth factors and small molecules. One of the major challenges facing tissue engineers is creating a scaffold fulfilling the properties necessary for controlled bone regeneration. These properties include osteoconduction, osetoinduction, biocompatibility, biodegradability, vascularization, and progenitor cell retention. This review will provide an overview of how optimization of the aforementioned scaffold parameters facilitates bone regenerative capabilities as well as a discussion of common osteoconductive scaffold materials.
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Affiliation(s)
- Viktor Tollemar
- The University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
- Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Laboratory of Craniofacial Biology and Development, Section of Plastic and Reconstructive Surgery, Department of Surgery, The University of Chicago Medicine, Chicago, IL 60637, USA
| | - Zach J. Collier
- The University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
- Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Maryam K. Mohammed
- The University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
- Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Michael J. Lee
- Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Guillermo A. Ameer
- Department of Surgery, Feinberg School of Medicine, Chicago, IL 60611, USA
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60208, USA
| | - Russell R. Reid
- Laboratory of Craniofacial Biology and Development, Section of Plastic and Reconstructive Surgery, Department of Surgery, The University of Chicago Medicine, Chicago, IL 60637, USA
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86
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Cao L, Li Q, Zhang C, Wu H, Yao L, Xu M, Yu L, Ding J. Safe and Efficient Colonic Endoscopic Submucosal Dissection Using an Injectable Hydrogel. ACS Biomater Sci Eng 2016; 2:393-402. [PMID: 33429543 DOI: 10.1021/acsbiomaterials.5b00516] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Endoscopic submucosal dissection (ESD) has not yet been widely adopted in the treatment of early colonic cancers due to the greater technical difficulty involved, longer procedure time, and the increased risk of perforation. Adequate mucosal elevation by submucosal injection is crucial for en bloc resection and prevention of perforation during colonic ESD. This study is aimed to evaluate the efficacy of an injectable thermoreversible hydrogel as the colonic submucosal agent for the first time. Triblock copolymer poly(lactic acid-co-glycolic acid)-poly(ethylene glycol)-poly(lactic acid-co-glycolic acid) (PLGA-PEG-PLGA) was synthesized, and its concentrated aqueous solution was injected into the colonic submucosa of living minipig and spontaneously transformed into an in situ hydrogel with adequate mucosal elevation at body temperature. Such a mucosal lifting lasted for a longer time than that created by the control group, glycerol fructose. Colonic ESD was then performed with the administration of hydrogels at various polymer concentrations or glycerol fructose. All colonic lesions were successfully resected en bloc after one single injection of the hydrogel, and repeated injections were not needed. No evidence of major hemorrhage, perforation and tissue damage were observed. Considering the injection pressure, duration of mucosal elevation and efficacy of "autodissection", the hydrogel containing 15 wt % polymer was the optimized system for colonic ESD. Consequently, the thermoreversible hydrogel is an ideal submucosal fluid that provides a durable mucosal lifting and makes colonic ESD accessible to a large extent. In particular, the efficacy of "autodissection" after one single injection of the hydrogel simplifies significantly the procedures while minimizing the complications.
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Affiliation(s)
- Luping Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Quanlin Li
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.,Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Chen Zhang
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Haocheng Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Liqing Yao
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Meidong Xu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.,Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, 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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87
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Yan S, Zhang X, Zhang K, Di H, Feng L, Li G, Fang J, Cui L, Chen X, Yin J. Injectable in situ forming poly(l-glutamic acid) hydrogels for cartilage tissue engineering. J Mater Chem B 2016; 4:947-961. [PMID: 32263168 DOI: 10.1039/c5tb01488c] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Injectable, in situ forming hydrogels have exhibited many advantages in regenerative medicine. Herein, we present the novel design of poly(l-glutamic acid) injectable hydrogels via the self-crosslinking of adipic dihydrazide (ADH)-modified poly(l-glutamic acid) (PLGA-ADH) and aldehyde-modified poly(l-glutamic acid) (PLGA-CHO), and investigate their potential in cartilage tissue engineering. Both the hydrazide modification degree of PLGA-ADH and oxidation degree of PLGA-CHO can be adjusted by the amount of activators and sodium periodate, respectively. Experiments reveal that the solid content of the hydrogels, -NH2/-CHO molar ratio, and oxidation degree of PLGA-CHO have a great effect on the gelation time, equilibrium swelling, mechanical properties, microscopic morphology, and in vitro degradation of the hydrogels. Encapsulation of rabbit chondrocytes within the hydrogels showed viability of the entrapped cells and cytocompatibility of the injectable hydrogels. A preliminary study exhibits injectability and rapid in vivo gel formation, as well as mechanical stability, cell ingrowth, and ectopic cartilage formation. These results suggest that the PLGA hydrogel has potential as an injectable cell delivery carrier for cartilage regeneration and could serve as a new biomaterial for tissue engineering.
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Affiliation(s)
- Shifeng Yan
- Department of Polymer Materials, Shanghai University, 333 Nanchen Road, Shanghai 200444, People's Republic of China.
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88
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An injectable hydrogel with or without drugs for prevention of epidural scar adhesion after laminectomy in rats. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-016-1740-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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89
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Seo JW, Shin US. Ionic thermo-responsive copolymer with multi LCST values: easy and fast LCST-change through anion exchange. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3695] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jae-Won Seo
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine; Dankook University; Cheonan Chungnam 330-714 Korea
| | - Ueon Sang Shin
- Institute of Tissue Regeneration Engineering (ITREN); Dankook University; Cheonan Chungnam 330-714 Korea
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90
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Dubbini A, Censi R, Butini ME, Sabbieti MG, Agas D, Vermonden T, Di Martino P. Injectable hyaluronic acid/PEG-p(HPMAm-lac)-based hydrogels dually cross-linked by thermal gelling and Michael addition. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.07.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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91
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Wang Q, Chen D. Synthesis and characterization of a chitosan based nanocomposite injectable hydrogel. Carbohydr Polym 2015; 136:1228-37. [PMID: 26572466 DOI: 10.1016/j.carbpol.2015.10.040] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 10/10/2015] [Accepted: 10/10/2015] [Indexed: 01/18/2023]
Abstract
The aim of the current study was to enhance the mechanical property of chitosan/β-glycerophosphate disodium salt (CS/GP) injectable hydrogels. A novel nanocomposite injectable hydrogel was prepared by introducing attapulgite (ATP) nano particles into the CS/GP hydrogels. The mechanical properties of the composite hydrogels with two different water contents were characterized by tensile test, the results shown that the tensile strength and elongation at break of composite hydrogels both increased obviously with increasing of ATP content. And, in our testing range, the maximum values of tensile strength and elongation at break were both more than 5 times larger than that of neat CS/GP hydrogel. We discussed this enhancement effect in detail by Scanning electron microscope observations (SEM) and Fourier transform infrared spectroscopy testing (FT-IR). The SEM images of composite hydrogels shown quite different from the neat CS/GP hydrogel, where the pores were more tightly and with some uniform and smaller holes dispersed on the wall. FT-IR test results revealed that the introduction of ATP increased the cross-link density because of the hydrogen bonds formation between ATP nanoparticles and CS molecules. Also, we studied the impact of ATP introduction on gelation speed through tracking the dynamic process of the sol-gel transition by means of rheological measurement, and the results shown that the reaction rate increased significantly with the increase of ATP concentration.
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Affiliation(s)
- Qianqian Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China
| | - Dajun Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China.
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92
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Soto-Quintero A, Meneses-Acosta A, Romo-Uribe A. Tailoring the viscoelastic, swelling kinetics and antibacterial behavior of poly(ethylene glycol)-based hydrogels with polycaprolactone. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.06.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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93
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Huh HW, Zhao L, Kim SY. Biomineralized biomimetic organic/inorganic hybrid hydrogels based on hyaluronic acid and poloxamer. Carbohydr Polym 2015; 126:130-40. [DOI: 10.1016/j.carbpol.2015.03.033] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/09/2015] [Accepted: 03/16/2015] [Indexed: 10/23/2022]
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94
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Han Q, Wang Y, Li X, Peng R, Li A, Qian Z, Yu L. Effects of bevacizumab loaded PEG-PCL-PEG hydrogel intracameral application on intraocular pressure after glaucoma filtration surgery. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:225. [PMID: 26286760 DOI: 10.1007/s10856-015-5556-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 08/06/2015] [Indexed: 06/04/2023]
Abstract
PEG-PCL-PEG (PECE) hydrogel for intracameral injection as a sustained delivery system can get a stable release of the medication and achieve an effective local concentration. The injectable PECE hydrogel is thermosensitive nano-material which is flowing sol at low temperature and can shift to nonflowing gel at body temperature. This study evaluated the intracameral injection of bevacizumab combined with a PECE hydrogel drug release system on postoperative scarring and bleb survival after experimental glaucoma filtration surgery. The best result was achieved in the bevacizumab loaded PECE hydrogels group, which presented the lowest IOP values after surgery. And the blebs were significantly more persistent in this group. Histology, Massion trichrome staining and immunohistochemistry further demonstrated that glaucoma filtration surgery in combination with bevacizumab loaded PECE hydrogel resulted in good bleb survival due to scar formation inhibition. In conclusions, this study demonstrated that bevacizumab-loaded PECE hydrogel for intracameral injection as a sustained delivery system provide a great opportunity to increase the therapeutic efficacy of glaucoma filtration surgery.
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Affiliation(s)
- Qian Han
- Department of Ophthalmology, Affiliated Hospital of Luzhou Medical College, Luzhou, 646000, Sichuan Province, China
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95
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Kutikov AB, Song J. Biodegradable PEG-Based Amphiphilic Block Copolymers for Tissue Engineering Applications. ACS Biomater Sci Eng 2015; 1:463-480. [PMID: 27175443 PMCID: PMC4860614 DOI: 10.1021/acsbiomaterials.5b00122] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biodegradable tissue engineering scaffolds have great potential for delivering cells/therapeutics and supporting tissue formation. Polyesters, the most extensively investigated biodegradable synthetic polymers, are not ideally suited for diverse tissue engineering applications due to limitations associated with their hydrophobicity. This review discusses the design and applications of amphiphilic block copolymer scaffolds integrating hydrophilic poly(ethylene glycol) (PEG) blocks with hydrophobic polyesters. Specifically, we highlight how the addition of PEG results in striking changes to the physical properties (swelling, degradation, mechanical, handling) and biological performance (protein & cell adhesion) of the degradable synthetic scaffolds in vitro. We then perform a critical review of how these in vitro characteristics translate to the performance of biodegradable amphiphilic block copolymer-based scaffolds in the repair of a variety of tissues in vivo including bone, cartilage, skin, and spinal cord/nerve. We conclude the review with recommendations for future optimizations in amphiphilic block copolymer design and the need for better-controlled in vivo studies to reveal the true benefits of the amphiphilic synthetic tissue scaffolds.
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Affiliation(s)
- Artem B. Kutikov
- Department of Orthopedics and Physical Rehabilitation. University of Massachusetts Medical School. 55 Lake Ave North, Worcester, MA 01655, USA
| | - Jie Song
- Department of Orthopedics and Physical Rehabilitation. University of Massachusetts Medical School. 55 Lake Ave North, Worcester, MA 01655, USA
- Department of Cell and Developmental Biology. University of Massachusetts Medical School. 55 Lake Ave North, Worcester, MA 01655, USA
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96
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Controlled release of simvastatin-loaded thermo-sensitive PLGA-PEG-PLGA hydrogel for bone tissue regeneration:in vitroandin vivocharacteristics. J Biomed Mater Res A 2015; 103:3580-9. [DOI: 10.1002/jbm.a.35499] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 04/22/2015] [Accepted: 05/06/2015] [Indexed: 01/08/2023]
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97
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Arun Kumar R, Sivashanmugam A, Deepthi S, Iseki S, Chennazhi KP, Nair SV, Jayakumar R. Injectable Chitin-Poly(ε-caprolactone)/Nanohydroxyapatite Composite Microgels Prepared by Simple Regeneration Technique for Bone Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2015; 7:9399-9409. [PMID: 25893690 DOI: 10.1021/acsami.5b02685] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Injectable gel systems, for the purpose of bone defect reconstruction, have many advantages, such as controlled flowability, adaptability to the defect site, and increased handling properties when compared to the conventionally used autologous graft, scaffolds, hydroxyapatite blocks, etc. In this work, nanohydroxyapatite (nHAp) incorporated chitin-poly(ε-caprolactone) (PCL) based injectable composite microgels has been developed by a simple regeneration technique for bone defect repair. The prepared microgel systems were characterized using scanning electron microscope (SEM), Fourier transformed infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The composite microgel, with the incorporation of nHAp, showed an increased elastic modulus and thermal stability and had shear-thinning behavior proving the injectability of the system. The protein adsorption, cytocompatibility, and migration of rabbit adipose derived mesenchymal stem cells (rASCs) were also studied. Chitin-PCL-nHAp microgel elicited an early osteogenic differentiation compared to control gel. The immunofluorescence studies confirmed the elevated expression of osteogenic-specific markers such as alkaline phosphatase, osteopontin, and osteocalcin in chitin-PCL-nHAp microgels. Thus, chitin-PCL-nHAp microgel could be a promising injectable system for regeneration of bone defects which are, even in deeper planes, irregularly shaped and complex in nature.
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Affiliation(s)
- R Arun Kumar
- †Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi-682041, India
| | - A Sivashanmugam
- †Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi-682041, India
| | - S Deepthi
- †Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi-682041, India
| | - Sachiko Iseki
- ‡Section of Molecular Craniofacial Embryology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo-113-8549, Japan
| | - K P Chennazhi
- †Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi-682041, India
| | - Shantikumar V Nair
- †Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi-682041, India
| | - R Jayakumar
- †Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi-682041, India
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Li L, Gu J, Zhang J, Xie Z, Lu Y, Shen L, Dong Q, Wang Y. Injectable and Biodegradable pH-Responsive Hydrogels for Localized and Sustained Treatment of Human Fibrosarcoma. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8033-8040. [PMID: 25838258 DOI: 10.1021/acsami.5b00389] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Injectable hydrogels are an important class of biomaterials, and they have been widely used for controlled drug release. This study evaluated an injectable hydrogel formed in situ system by the reaction of a polyethylene glycol derivative with α,β-polyaspartylhydrazide for local cancer chemotherapy. This pH-responsive hydrogel was used to realize a sol-gel phase transition, where the gel remained a free-flowing fluid before injection but spontaneously changed into a semisolid hydrogel just after administration. As indicated by scanning electron microscopy images, the hydrogel exhibited a porous three-dimensional microstructure. The prepared hydrogel was biocompatible and biodegradable and could be utilized as a pH-responsive vector for drug delivery. The therapeutic effect of the hydrogel loaded with doxorubicin (DOX) after intratumoral administration in mice with human fibrosarcoma was evaluated. The inhibition of tumor growth was more obvious in the group treated by the DOX-loaded hydrogel, compared to that treated with the free DOX solution. Hence, this hydrogel with good syringeability and high biodegradability, which focuses on local chemotherapy, may enhance the therapeutic effect on human fibrosarcoma.
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Affiliation(s)
- Liubing Li
- †The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Jun Gu
- †The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Jie Zhang
- §Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
| | - Zonggang Xie
- †The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Yufeng Lu
- †The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Liqin Shen
- †The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Qirong Dong
- †The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Yangyun Wang
- §Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
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99
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Biomimetic approaches in bone tissue engineering: Integrating biological and physicomechanical strategies. Adv Drug Deliv Rev 2015; 84:1-29. [PMID: 25236302 DOI: 10.1016/j.addr.2014.09.005] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 09/01/2014] [Accepted: 09/05/2014] [Indexed: 02/06/2023]
Abstract
The development of responsive biomaterials capable of demonstrating modulated function in response to dynamic physiological and mechanical changes in vivo remains an important challenge in bone tissue engineering. To achieve long-term repair and good clinical outcomes, biologically responsive approaches that focus on repair and reconstitution of tissue structure and function through drug release, receptor recognition, environmental responsiveness and tuned biodegradability are required. Traditional orthopedic materials lack biomimicry, and mismatches in tissue morphology, or chemical and mechanical properties ultimately accelerate device failure. Multiple stimuli have been proposed as principal contributors or mediators of cell activity and bone tissue formation, including physical (substrate topography, stiffness, shear stress and electrical forces) and biochemical factors (growth factors, genes or proteins). However, optimal solutions to bone regeneration remain elusive. This review will focus on biological and physicomechanical considerations currently being explored in bone tissue engineering.
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Xie D, Guo J, Mehdizadeh M, Tran RT, Chen R, Sun D, Qian G, Jin D, Bai X, Yang J. Development of Injectable Citrate-Based Bioadhesive Bone Implants. J Mater Chem B 2015; 3:387-398. [PMID: 25580247 PMCID: PMC4286886 DOI: 10.1039/c4tb01498g] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Injectable bone implants have been widely used in bone tissue repairs including the treatment of comminuted bone fractures (CBF). However, most injectable bone implants are not suitable for the treatment of CBF due to their weak tissue adhesion strengths and minimal osteoinduction. Citrate has been recently reported to promote bone formation through enhanced bioceramic integration and osteoinductivity. Herein, a novel injectable citrate-based mussel-inspired bioadhesive hydroxyapatite (iCMBA/HA) bone substitute was developed for CBF treatment. iCMBA/HA can be set within 2-4 minutes and the as-prepared (wet) iCMBA/HA possess low swelling ratios, compressive mechanical strengths of up to 3.2±0.27 MPa, complete degradation in 30 days, suitable biocompatibility, and osteoinductivity. This is also the first time to demonstrate that citrate supplementation in osteogenic medium and citrate released from iCMBA/HA degradation can promote the mineralization of osteoblastic committed human mesenchymal stem cells (hMSCs). In vivo evaluation of iCMBA/HA in a rabbit comminuted radial fracture model showed significantly increased bone formation with markedly enhanced three-point bending strength compared to the negative control. Neovascularization and bone ingrowth as well as highly organized bone formation were also observed showing the potential of iCMBA/HA in treating CBF.
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Affiliation(s)
- Denghui Xie
- Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University; Academy of Orthopedics, Guangdong Province; Biology Department, Southern Medical University, Guangzhou, 510515, China ; Department of Biomedical Engineering, Materials Research Institutes, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park 16802, USA
| | - Jinshan Guo
- Department of Biomedical Engineering, Materials Research Institutes, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park 16802, USA
| | - Mohammadreza Mehdizadeh
- Department of Biomedical Engineering, Materials Research Institutes, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park 16802, USA
| | - Richard T Tran
- Department of Biomedical Engineering, Materials Research Institutes, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park 16802, USA
| | - Ruisong Chen
- Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University; Academy of Orthopedics, Guangdong Province; Biology Department, Southern Medical University, Guangzhou, 510515, China
| | - Dawei Sun
- Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University; Academy of Orthopedics, Guangdong Province; Biology Department, Southern Medical University, Guangzhou, 510515, China
| | - Guoying Qian
- Department of Biology, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
| | - Dadi Jin
- Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University; Academy of Orthopedics, Guangdong Province; Biology Department, Southern Medical University, Guangzhou, 510515, China
| | - Xiaochun Bai
- Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University; Academy of Orthopedics, Guangdong Province; Biology Department, Southern Medical University, Guangzhou, 510515, China
| | - Jian Yang
- Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University; Academy of Orthopedics, Guangdong Province; Biology Department, Southern Medical University, Guangzhou, 510515, China ; Department of Biomedical Engineering, Materials Research Institutes, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park 16802, USA
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