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Yuan L, Wei H, Pan Z, Deng X, Yang L, Wang Y, Lu D, Li Z, Luo F, Li J, Tan H. A bioinspired injectable antioxidant hydrogel for prevention of postoperative adhesion. J Mater Chem B 2024. [PMID: 38915270 DOI: 10.1039/d4tb00805g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Postoperative adhesions, a prevalent complication following abdominal surgery, affect 90% of patients undergoing abdominal surgical procedures. Currently, the primary approach to prevent postoperative adhesions involves physical isolation of the surgical site and surrounding tissues using a hydrogel; however, this method represents a rudimentary strategy. Herein, considering the impact of oxidative stress and free radicals on postoperative adhesion during wound healing, an injectable antioxidant hydrogel, named PU-OHA-D, was successfully synthesized, which is formed by the crosslinking of dopamine-modified oxidized hyaluronic acid (OHA-D) and dihydrazide-terminated polyurethane (PU-ADH) through hydrazone bonding. PU-OHA-D hydrogel possesses versatile characteristics such as rapid gel formation, injectability, self-repair capability and biodegradability. Additionally, they exhibit an excellent ability to clear free radicals and superior tissue adhesion. PU-OHA-D can be injected in situ to form a hydrogel to prevent abdominal wall-cecum adhesion. Importantly, it can effectively eliminate free radicals and inhibit oxidative stress at the wound site. Thereby, it leads to collagen physiological degradation and prevents the occurrence of postoperative adhesions. The bioinspired hydrogel demonstrates its great potential in preventing postoperative adhesion and promoting wound healing.
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Affiliation(s)
- Lei Yuan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
| | - Hongxiu Wei
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
| | - ZhongJing Pan
- Department of Otorhinolaryngology, Head & Neck Surgery, West China Hospital, Sichuan University, Sichuan, Chengdu 610041, China
| | - Xiaobo Deng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
| | - Lin Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
| | - Yanchao Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Dan Lu
- Department of Otorhinolaryngology, Head & Neck Surgery, West China Hospital, Sichuan University, Sichuan, Chengdu 610041, China
| | - Zhen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
| | - Feng Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
| | - Jiehua Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China.
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The recent advancement in the PLGA-based thermo-sensitive hydrogel for smart drug delivery. Int J Pharm 2023; 631:122484. [PMID: 36509221 DOI: 10.1016/j.ijpharm.2022.122484] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
To date, hydrogels have opened new prospects for potential applications for drug delivery. The thermo-sensitive hydrogels have the great potential to provide more effective and controllable release of therapeutic/bioactive agents in response to changes in temperature. PLGA is a safe FDA-approved copolymer with good biocompatibility and biodegradability. Recently, PLGA-based formulation have attracted a lot of interest for thermo-sensitive hydrogels. Thermo-sensitive PLGA-based hydrogels provide the delivery system with good spatial and temporal control, and have been widely applied in drug delivery. This review is focused on the recent progression of the thermo-sensitive and biodegradable PLGA-based hydrogels that have been reported for smart drug delivery to the different organs. Eventually, future perspectives and challenges of thermo-sensitive PLGA-based hydrogels are discussed briefly.
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Mousavi SR, Rafati A, Dehghanian AR, Nejat H, Matin F, Ghaffari MK, Naseh M. The Comparative Effects of Dexamethasone, Nanocurcumin, and Coenzyme Q10 Against Lumbar Laminectomy-Induced Epidural Fibrosis in a Rat Model. World Neurosurg 2022; 167:e317-e322. [PMID: 35963607 DOI: 10.1016/j.wneu.2022.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND One of the major problems in neurosurgical procedures is fibrosis formation. Therefore, the prevention of fibrosis is an important issue in spinal cord injury that needs to be addressed. No approved therapy has yet been found, and epidural fibrosis (EF) is a huge treatment challenge. In this regard, new drugs that can effectively prevent EF are still being considered. Hence, this study aimed to investigate the effects of dexamethasone (DEX), nanocurcumin (Nano-CUR), and coenzyme Q10 (CoQ10) on the prevention of EF in a rat laminectomy model. METHODS Thirty-five Sprague-Dawley male rats were randomly divided into 5 groups: sham group, laminectomy group, laminectomy + DEX group, in which 0.5 ml DEX (8 mg/ml) was applied locally on the laminectomy area, laminectomy + Nano-CUR group, in which 100 mg/kg Nano-CUR was administered intraperitoneally once a day for 7 days, and laminectomy + CoQ10 group, in which 30 mg/kg CoQ10 was administered once daily intraperitoneally for 7 days. After 4 weeks, the vertebral columns were removed from L1 and L3 and prepared for histopathological assays. RESULTS The local administration of DEX could not improve the histological parameters, and EF was induced by laminectomy after 4 weeks. On the other hand, Nano-CUR could ameliorate EF at the laminectomy site compared to the laminectomy group, but the difference was not statistically significant. CoQ10 significantly reduced EF (P < 0.05), collagen density (P < 0.01), and inflammation in the arachnoid layer (P < 0.01). CONCLUSIONS Our findings showed that Nano-CUR and CoQ10 had the potential to be used for treatment of EF.
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Affiliation(s)
- Seyed Reza Mousavi
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Neurosurgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Rafati
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Physiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Hossein Nejat
- Department of Neurosurgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Matin
- Department of Neurosurgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Khorsand Ghaffari
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Physiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Naseh
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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4
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Zhang Z, Wang J, Xia W, Cao D, Wang X, Kuang Y, Luo Y, Yuan C, Lu J, Liu X. Application of Hydrogels as Carrier in Tumor Therapy: A Review. Chem Asian J 2022; 17:e202200740. [PMID: 36070227 DOI: 10.1002/asia.202200740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/07/2022]
Abstract
Cancer is one of the most intractable diseases in the world because of its high recurrence rate, high metastasis rate and high lethality rate. Traditional chemotherapy, radiotherapy and surgery have unsatisfactory therapeutic effects and cause many severe side effects at the same time. Hydrogel is a new type of biomaterial with the advantages of good biocompatibility and easy degradation, which can be used as a carrier of functional nanomaterials for tumor therapy. Herein, we represent the progress of hydrogels with different skeletons and their application as carrier in tumor treatment. The hydrogels are listed as polyethylene glycol-based hydrogels, chitosan-based hydrogels, peptide-based hydrogels, hyaluronic acid-based hydrogels, steroid-based hydrogels and other hydrogels by skeletons, and their properties, modifications and toxicities were introduced. Some representative applications of combined hydrogels with nanomaterial for chemotherapy, photodynamic therapy, photothermal therapy, sonodynamic therapy, chemodynamic therapy and synergistic therapy are highlighted.
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Affiliation(s)
- Ziwen Zhang
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Jinxia Wang
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Wei Xia
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Dongmiao Cao
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Xingyan Wang
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Yunqi Kuang
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Yu Luo
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Chunping Yuan
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Jie Lu
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
| | - Xijian Liu
- School of Chemistry and Chemical Engineering, Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China
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Wu M, Peng QY, Han LB, Zeng HB. Self-healing Hydrogels and Underlying Reversible Intermolecular Interactions. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2631-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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6
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Shi J, Yu L, Ding J. PEG-based thermosensitive and biodegradable hydrogels. Acta Biomater 2021; 128:42-59. [PMID: 33857694 DOI: 10.1016/j.actbio.2021.04.009] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/09/2021] [Accepted: 04/01/2021] [Indexed: 02/07/2023]
Abstract
Injectable thermosensitive hydrogels are free-flowing polymer solutions at low or room temperature, making them easy to encapsulate the therapeutic payload or cells via simply mixing. Upon injection into the body, in situ forming hydrogels triggered by body temperature can act as drug-releasing reservoirs or cell-growing scaffolds. Finally, the hydrogels are eliminated from the administration sites after they accomplish their missions as depots or scaffolds. This review outlines the recent progress of poly(ethylene glycol) (PEG)-based biodegradable thermosensitive hydrogels, especially those composed of PEG-polyester copolymers, PEG-polypeptide copolymers and poly(organophosphazene)s. The material design, performance regulation, thermogelation and degradation mechanisms, and corresponding applications in the biomedical field are summarized and discussed. A perspective on the future thermosensitive hydrogels is also highlighted. STATEMENT OF SIGNIFICANCE: Thermosensitive hydrogels undergoing reversible sol-to-gel phase transitions in response to temperature variations are a class of promising biomaterials that can serve as minimally invasive injectable systems for various biomedical applications. Hydrophilic PEG is a main component in the design and fabrication of thermoresponsive hydrogels due to its excellent biocompatibility. By incorporating hydrophobic segments, such as polyesters and polypeptides, into PEG-based systems, biodegradable and thermosensitive hydrogels with adjustable properties in vitro and in vivo have been developed and have recently become a research hotspot of biomaterials. The summary and discussion on molecular design, performance regulation, thermogelation and degradation mechanisms, and biomedical applications of PEG-based thermosensitive hydrogels may offer a demonstration of blueprint for designing new thermogelling systems and expanding their application scope.
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7
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Hogan KJ, Mikos AG. Biodegradable thermoresponsive polymers: Applications in drug delivery and tissue engineering. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123063] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Shi Z, Wang Q, Li GF, Shou YF, Zong HJ, Yan SF, Zhang KX, Yin JB. Preparation and Characterization of Attractive Poly(amino acid) Hydrogels Based on 2-Ureido-4[1H]-pyrimidinone. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-021-2498-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Motor and sensitive recovery after injection of a physically cross-linked PNIPAAm-g-PEG hydrogel in rat hemisectioned spinal cord. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110354. [DOI: 10.1016/j.msec.2019.110354] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 10/02/2019] [Accepted: 10/20/2019] [Indexed: 12/28/2022]
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10
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Gao Y, Li Z, Huang J, Zhao M, Wu J. In situ formation of injectable hydrogels for chronic wound healing. J Mater Chem B 2020; 8:8768-8780. [PMID: 33026387 DOI: 10.1039/d0tb01074j] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hydrogels have been widely used in wound healing treatment over the past decade.
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Affiliation(s)
- Yunfen Gao
- School of Biomedical Engineering
- Sun Yat-sen University
- Shenzhen
- China
| | - Zhen Li
- School of Biomedical Engineering
- Sun Yat-sen University
- Shenzhen
- China
| | - Jun Huang
- School of Biomedical Engineering
- Sun Yat-sen University
- Shenzhen
- China
- The Seventh Affiliated Hospital of Sun Yat-Sen University
| | - Meng Zhao
- Shenzhen Lansi Institute of Artificial Intelligence in Medicine
- Shenzhen
- China
| | - Jun Wu
- School of Biomedical Engineering
- Sun Yat-sen University
- Shenzhen
- China
- The Seventh Affiliated Hospital of Sun Yat-Sen University
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Nasrollahi P, Khajeh K, Tamjid E, Taleb M, Soleimani M, Nie G. Sustained release of sodium deoxycholate from PLGA-PEG-PLGA thermosensitive polymer. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:1170-1177. [PMID: 29989444 DOI: 10.1080/21691401.2018.1481861] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Delivery of the drugs to the target tissue and reducing their side effects on surrounding tissues is still a significant challenge for pharmaceutical scientists. The aim of this study was to investigate the suitability of PLGA-PEG-PLGA triblock copolymer as a matrix material for a sustained-release system of sodium deoxycholate (NaDC). The copolymer was synthesized by ring-opening polymerization reaction, using microwave irradiation and characterized by different techniques. It was shown that the introduction of NaDC to the PLGA-PEG-PLGA copolymer did not influence its inherent sol-gel transition behaviour, but increased the sol-gel transition. The results showed the appropriate NaDC/polymer interaction and the formation of NaDC/polymer-mixed micelle. The sustained release of NaDC from the copolymer lasted for 2 days. This release can be attributed to the formation of NaDC/polymer-mixed micelles and trapping NaDC in the copolymer matrix. The cytolytic efficacy of NaDC-loaded copolymer and sustained release of NaDC were investigated on human adipocytes. Overall a sustained-release formulation for NaDC can be used to study localized fat dissolution.
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Affiliation(s)
- Parisa Nasrollahi
- a Department of Nanobiotechnology, Faculty of Biological Sciences , Tarbiat Modares University , Tehran , Iran
| | - Khosro Khajeh
- a Department of Nanobiotechnology, Faculty of Biological Sciences , Tarbiat Modares University , Tehran , Iran.,b Department of Biochemistry, Faculty of Biological Sciences , Tarbiat Modares University , Tehran , Iran
| | - Elnaz Tamjid
- a Department of Nanobiotechnology, Faculty of Biological Sciences , Tarbiat Modares University , Tehran , Iran
| | - Mohammad Taleb
- c Department of Biomedical Effect of Nanomaterial and Nanosafety , National Center for Nanoscience and Technology , Beijing , China
| | - Masoud Soleimani
- d Department of Hematology, Faculty of Medical Sciences , Tarbiat Modares University , Tehran , Iran
| | - Guangjun Nie
- c Department of Biomedical Effect of Nanomaterial and Nanosafety , National Center for Nanoscience and Technology , Beijing , China
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12
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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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Luan J, Cui S, Wang J, Shen W, Yu L, Ding J. Positional isomeric effects of coupling agents on the temperature-induced gelation of triblock copolymer aqueous solutions. Polym Chem 2017. [DOI: 10.1039/c7py00232g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The linking angles of positional isomers in the middle of thermogelling mPEG-PLGA-mPEG polymers were found to affect their microscopic conformations and macroscopic properties.
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Affiliation(s)
- Jiabin Luan
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Shuquan Cui
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Juntao Wang
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Wenjia Shen
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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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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15
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Ma Q, Lei K, Ding J, Yu L, Ding J. Design, synthesis and ring-opening polymerization of a new iodinated carbonate monomer: a universal route towards ultrahigh radiopaque aliphatic polycarbonates. Polym Chem 2017. [DOI: 10.1039/c7py01411b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A universal route towards ultrahigh radiopaque aliphatic polycarbonates was developed based on a new iodinated carbonate monomer.
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Affiliation(s)
- Qian Ma
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Kewen Lei
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jian Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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Zhang Z, Wang X, Zhu R, Wang Y, Li B, Ma Y, Yin Y. Synthesis and characterization of serial random and block-copolymers based on lactide and glycolide. POLYMER SCIENCE SERIES B 2016. [DOI: 10.1134/s1560090416060191] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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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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Gao L, Sun Q, Wang Y, Zhu W, Li X, Luo Q, Li X, Shen Z. Injectable poly(ethylene glycol) hydrogels for sustained doxorubicin release. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3852] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lilong Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Qiang Sun
- Affiliated Stomatology Hospital, School of Medicine; Zhejiang University; Hangzhou 310006 China
| | - Ying Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
- Affiliated Stomatology Hospital, School of Medicine; Zhejiang University; Hangzhou 310006 China
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province; Hangzhou 310027 China
| | - Xiaojun Li
- Affiliated Stomatology Hospital, School of Medicine; Zhejiang University; Hangzhou 310006 China
| | - Qiaojie Luo
- The First Affiliated Hospital, College of Medicine; Zhejiang University; Hangzhou 310003 China
| | - Xiaodong Li
- Affiliated Stomatology Hospital, School of Medicine; Zhejiang University; Hangzhou 310006 China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
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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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Gao L, Chen Y, Luo Q, Wang Y, Li X, Shen Z, Zhu W. Injectable camptothecin conjugated hydrogels with simultaneous drug release and degradation. RSC Adv 2016. [DOI: 10.1039/c6ra20691c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel injectable camptothecin conjugated hydrogels with simultaneous drug release and degradation properties were prepared, which show significant cytotoxicity to HepG2 cells, and could be a potential candidate for intratumor drug delivery.
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Affiliation(s)
- Lilong Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Yadong Chen
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Qiaojie Luo
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Ying Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Xiaodong Li
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
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21
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Lei K, Ma Q, Yu L, Ding J. Functional biomedical hydrogels for in vivo imaging. J Mater Chem B 2016; 4:7793-7812. [DOI: 10.1039/c6tb02019d] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In vivo imaging of biomedical hydrogels enables real-time and non-invasive visualization of the status of structure and function of hydrogels.
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Affiliation(s)
- Kewen Lei
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Qian Ma
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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