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Jiang Z, Jin B, Liang Z, Wang Y, Ren S, Huang Y, Li C, Sun H, Li Y, Liu L, Li N, Wang J, Cui Z, Huang P, Yang H, Mao Y, Ye H. Liver bioprinting within a novel support medium with functionalized spheroids, hepatic vein structures, and enhanced post-transplantation vascularization. Biomaterials 2024; 311:122681. [PMID: 38944968 DOI: 10.1016/j.biomaterials.2024.122681] [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: 12/19/2023] [Revised: 04/28/2024] [Accepted: 06/23/2024] [Indexed: 07/02/2024]
Abstract
Cell-laden bioprinting is a promising biofabrication strategy for regenerating bioactive transplants to address organ donor shortages. However, there has been little success in reproducing transplantable artificial organs with multiple distinctive cell types and physiologically relevant architecture. In this study, an omnidirectional printing embedded network (OPEN) is presented as a support medium for embedded 3D printing. The medium is state-of-the-art due to its one-step preparation, fast removal, and versatile ink compatibility. To test the feasibility of OPEN, exceptional primary mouse hepatocytes (PMHs) and endothelial cell line-C166, were used to print hepatospheroid-encapsulated-artificial livers (HEALs) with vein structures following predesigned anatomy-based printing paths in OPEN. PMHs self-organized into hepatocyte spheroids within the ink matrix, whereas the entire cross-linked structure remained intact for a minimum of ten days of cultivation. Cultivated HEALs maintained mature hepatic functions and marker gene expression at a higher level than conventional 2D and 3D conditions in vitro. HEALs with C166-laden vein structures promoted endogenous neovascularization in vivo compared with hepatospheroid-only liver prints within two weeks of transplantation. Collectively, the proposed platform enables the manufacture of bioactive tissues or organs resembling anatomical architecture, and has broad implications for liver function replacement in clinical applications.
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Affiliation(s)
- Zhuoran Jiang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China; Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK
| | - Bao Jin
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Zhu Liang
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK; Chinese Academy of Medical Sciences (CAMS), CAMS Oxford Institute (COI), Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Yinhan Wang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Shuai Ren
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK
| | - Yongfa Huang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Changcan Li
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Hang Sun
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Yunzhu Li
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Li Liu
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK
| | - Nianlin Li
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK
| | - Jinzhuo Wang
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK
| | - Zhanfeng Cui
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK; The Oxford Suzhou Centre for Advanced Research (OSCAR), University of Oxford, Suzhou, 215123, China
| | - Pengyu Huang
- Engineering Research Center of Pulmonary and Critical Care Technology and Device (MOE of China), Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China.
| | - Huayu Yang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China.
| | - Yilei Mao
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, China.
| | - Hua Ye
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK; The Oxford Suzhou Centre for Advanced Research (OSCAR), University of Oxford, Suzhou, 215123, China.
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Xu Y, Chen Y, Tan JJ, Ooi JP, Guo Z. Intrapericardial Administration to Achieve Localized and Targeted Treatment for Cardiac Disease. J Cardiovasc Transl Res 2024:10.1007/s12265-024-10553-3. [PMID: 39164600 DOI: 10.1007/s12265-024-10553-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 08/06/2024] [Indexed: 08/22/2024]
Abstract
Intrapericardial administration has been proposed as an alternative delivery route of pharmacological agents via the bilaminar sac of pericardium surrounding the heart. To date, intrapericardial administration has entailed the localized administration of a broad spectrum of therapeutic agents. These agents include stem cells, extracellular matrix, growth factor, drugs, bioactive materials, and genetic materials, to the heart and coronary arteries. The route not only overcomes the limitations associated with traditional systemic administration methods, but also presents multiple intrinsic advantages over the other approaches, allowing greater therapeutic actions. Intrapericardial administration exhibits versatility in addressing certain cardiac conditions and ongoing research in this field certainly holds promise for further innovations and advancements to improve cardiac treatment. Thus, this review discusses the anatomy and physiology of the pericardium, the intrapericardial administration access routes, the recent application of intrapericardial delivery in the context of cardiac repair as well as the challenges associated with the approach.
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Affiliation(s)
- Yaping Xu
- USM-ALPS Joint Laboratory for Heart Research, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200, Kepala Batas, Pulau Pinang, Malaysia
- Henan Key Laboratory of Cardiac Reconstruction and Heart Transplantation, Zhengzhou the Seventh People's Hospital, Zhengzhou, 45300, Henan, P. R. China
| | - Yan Chen
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang Henan, 453003, P. R. China
| | - Jun Jie Tan
- USM-ALPS Joint Laboratory for Heart Research, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Jer Ping Ooi
- USM-ALPS Joint Laboratory for Heart Research, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200, Kepala Batas, Pulau Pinang, Malaysia.
| | - Zhikun Guo
- Henan Key Laboratory of Cardiac Reconstruction and Heart Transplantation, Zhengzhou the Seventh People's Hospital, Zhengzhou, 45300, Henan, P. R. China.
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Yu C, Qiu Y, Yao F, Wang C, Li J. Chemically Programmed Hydrogels for Spatiotemporal Modulation of the Cardiac Pathological Microenvironment. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404264. [PMID: 38830198 DOI: 10.1002/adma.202404264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/20/2024] [Indexed: 06/05/2024]
Abstract
After myocardial infarction (MI), sustained ischemic events induce pathological microenvironments characterized by ischemia-hypoxia, oxidative stress, inflammatory responses, matrix remodeling, and fibrous scarring. Conventional clinical therapies lack spatially targeted and temporally responsive modulation of the infarct microenvironment, leading to limited myocardial repair. Engineered hydrogels have a chemically programmed toolbox for minimally invasive localization of the pathological microenvironment and personalized responsive modulation over different pathological periods. Chemically programmed strategies for crosslinking interactions, interfacial binding, and topological microstructures in hydrogels enable minimally invasive implantation and in situ integration tailored to the myocardium. This enhances substance exchange and signal interactions within the infarcted microenvironment. Programmed responsive polymer networks, intelligent micro/nanoplatforms, and biological therapeutic cues contribute to the formation of microenvironment-modulated hydrogels with precise targeting, spatiotemporal control, and on-demand feedback. Therefore, this review summarizes the features of the MI microenvironment and chemically programmed schemes for hydrogels to conform, integrate, and modulate the cardiac pathological microenvironment. Chemically programmed strategies for oxygen-generating, antioxidant, anti-inflammatory, provascular, and electrointegrated hydrogels to stimulate iterative and translational cardiac tissue engineering are discussed.
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Affiliation(s)
- Chaojie Yu
- School of Chemical Engineering and Technology, Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Tianjin University, Tianjin, 300350, China
| | - Yuwei Qiu
- School of Chemical Engineering and Technology, Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Tianjin University, Tianjin, 300350, China
| | - Fanglian Yao
- School of Chemical Engineering and Technology, Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Tianjin University, Tianjin, 300350, China
| | - Changyong Wang
- Tissue Engineering Research Center, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China
| | - Junjie Li
- School of Chemical Engineering and Technology, Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Tianjin University, Tianjin, 300350, China
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Liu X, Qiu X, Nie L, Zhou B, Bu P, Li Y, Xue X, Tang B, Feng Q, Cai K. Nonswellable Hydrogel Patch with Tissue-Mimetic Mechanical Characteristics Remodeling In Vivo Microenvironment for Effective Adhesion Prevention. ACS NANO 2024; 18:17651-17671. [PMID: 38932673 DOI: 10.1021/acsnano.4c02321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Postoperative adhesion is a common complication after abdominal surgery, but current clinical products have unsatisfactory therapeutic effects. Here, we present a hydrogel patch formed in a single step through dialysis. The exchange of DMSO into water facilitates hydrophobic aggregate in situ formation and the formation of hydrogen bonds within the hydrogel. Thanks to the optimized component ratio and precise structural design. The hydrogel patch has soft-tissue-like mechanical characteristics, including high strength, high toughness, low modulus similar to the abdominal wall, good fatigue resistance, and fast self-recovery properties. The nonswellable hydrogel patch retains over 80% of its original mechanical properties after 7 days of immersion in physiological saline, with a maximum swelling ratio of 5.6%. Moreover, the hydrophobic biomultifunctionality of benzyl isothiocyanate can self-assemble onto the hydrogel patch during the sol-gel transition process, enabling it to remodel the inflammatory microenvironment through synergistic antibacterial, antioxidant, and anti-inflammatory effects. The hydrogel patch prevents postsurgical adhesion in a rat sidewall defect-cecum abrasion model and outperforms the leading commercial Interceed. It holds promising potential for clinical translation, considering that FDA-approved raw materials (PVA and gelatin) form the backbone of this effective hydrogel patch.
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Affiliation(s)
- Xuezhe Liu
- Key Laboratory of Biorheological Science and Technology Ministry of Education, Collage of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Xingan Qiu
- Chongqing Municipality Clinical Research Center for Geriatric Diseases, Chongqing 404000, China
- Chongqing University Three Gorges Hospital, Chongqing University, Chongqing 404000, China
| | - Linxia Nie
- School of Medicine, Chongqing University, Chongqing 40044, China
| | - Bikun Zhou
- Key Laboratory of Biorheological Science and Technology Ministry of Education, Collage of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Pengzhen Bu
- Key Laboratory of Biorheological Science and Technology Ministry of Education, Collage of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Yang Li
- Department of Pathology, The First Affiliated Hospital of the Army Medical University, Chongqing 400000, China
| | - Xinwen Xue
- Department of Pathology, The First Affiliated Hospital of the Army Medical University, Chongqing 400000, China
| | - Bo Tang
- Department of Pathology, The First Affiliated Hospital of the Army Medical University, Chongqing 400000, China
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology Ministry of Education, Collage of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology Ministry of Education, Collage of Bioengineering, Chongqing University, Chongqing 400044, China
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Chen X, Yan D, Deng H, Yang H, Peng S, Zhang W, Cai S, Zhang Q, Ren H, Yan Y. CuSO 4/H 2O 2induced polydopamine/polysulfobetaine methacrylate co-deposition on poly(amino acid) membranes for improved anti-protein adsorption and antibacterial activity. Biomed Mater 2024; 19:055008. [PMID: 38917812 DOI: 10.1088/1748-605x/ad5ba6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 06/25/2024] [Indexed: 06/27/2024]
Abstract
Stopping postoperative soft tissue adhesions is one of the most challenging clinical problems that needs to be addressed urgently to avoid secondary injury and pain to patients. Currently, membrane materials with anti-protein adsorption and antibacterial activity are recognized as an effective and promising anti-adhesion barrier to prevent postoperative adhesion and the recurrent adhesion after adhesiolysis. Herein, poly(amino acid) (PAA), which is structurally similar to collagen, is selected as the membrane base material to successfully synthesize PAA-5 membranes with excellent mechanical and degradation properties by in-situ melt polymerization and hot-melt film-forming technology. Subsequently, the co-deposition of polydopamine/polysulfobetaine methacrylate (PDA/PSBMA) coatings induced by CuSO4/H2O2on PAA-5 membranes results in the formation of PDC-5S and PDC-10S, which exhibit excellent hemocompatibility, protein antifouling properties, and cytocompatibility. Additionally, PDC-5S and PDC-10S demonstrated significant antibacterial activity againstEscherichia coliandStaphylococcus aureus, with an inhibition rate of more than 90%. As a result, this study sheds light on newly discovered PAA membranes with anti-protein adsorption and antibacterial activity can sever as one of the promising candidates for the prevention of postoperative peritoneum adhesions.
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Affiliation(s)
- Xiaolu Chen
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Dawei Yan
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Hao Deng
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Hulin Yang
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Suping Peng
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Wei Zhang
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Shijie Cai
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Qiyi Zhang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Haohao Ren
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Yonggang Yan
- College of Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
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6
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Wang H, Williams KM, Elde S, Bulterys PL, Thakore AD, Lucian HJ, Farry JM, Mullis DM, Zhu Y, Paulsen MJ, Woo YJ. Trimmed central venous catheters do not increase endothelial injury in an ovine model. J Vasc Access 2024; 25:1180-1186. [PMID: 36765464 DOI: 10.1177/11297298231153716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
INTRODUCTION Central venous catheters (CVCs) are often trimmed during heart transplantation and pediatric cardiac surgery. However, the risk of endothelial injury caused by the cut tip of the CVC has not been evaluated. We hypothesized that there is no difference in the degree of endothelial injury associated with trimmed CVCs versus standard untrimmed CVCs. METHODS In four adult male sheep, the left external jugular vein was exposed in three segments, one designated for an untouched control group, one for the trimmed CVC group, and one for the untrimmed CVC group. Trimmed and untrimmed CVC tips were rotated circumferentially within their respective segments to abrade the lumen of the vein. The vein samples were explanted, and two representative sections from each sample were analyzed using hematoxylin and eosin (H&E) staining, as well as with immunohistochemistry against CD31, von Willebrand factor (vWF), endothelial nitric oxide synthase (eNOS), and caveolin. Higher immunohistochemical stain distributions and intensities are associated with normal health and function of the venous endothelium. Data are presented as counts with percentages or as means with standard error. RESULTS H&E staining revealed no evidence of endothelial injury in 6/8 (75%) samples from the untouched control group, and no injury in 4/8 (50%) samples from both the trimmed and untrimmed CVC groups (p = 0.504). In all remaining samples from each group, only mild endothelial injury was observed. Immunohistochemical analysis comparing trimmed CVCs versus untrimmed CVCs revealed no difference in the percentage of endothelial cells staining positive for CD31 (57.5% ± 7.2% vs 55.0% ± 9.2%, p = 0.982), vWF (73.8% ± 8.0% vs 62.5% ± 9.6%, p = 0.579), eNOS (66.3% ± 4.2% vs 63.8% ± 7.5%, p = 0.962), and caveolin (53.8% ± 5.0% vs 51.3% ± 4.4%, p = 0.922). There were no significant differences between the groups in the distributions of stain intensity for CD31, vWF, eNOS, and caveolin. CONCLUSION Trimmed CVCs do not increase endothelial injury compared to standard untrimmed CVCs.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Stefan Elde
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | | | - Akshara D Thakore
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Haley J Lucian
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Justin M Farry
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Danielle M Mullis
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Yuanjia Zhu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Michael J Paulsen
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
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Deng J, Wu J, Chen X, Sarrafian TL, Varela CE, Whyte W, Guo CF, Roche ET, Griffiths LG, Yuk H, Nabzdyk CS, Zhao X. A bioadhesive pacing lead for atraumatic cardiac monitoring and stimulation in rodent and porcine models. Sci Transl Med 2024; 16:eado9003. [PMID: 38896601 DOI: 10.1126/scitranslmed.ado9003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024]
Abstract
Current clinically used electronic implants, including cardiac pacing leads for epicardial monitoring and stimulation of the heart, rely on surgical suturing or direct insertion of electrodes to the heart tissue. These approaches can cause tissue trauma during the implantation and retrieval of the pacing leads, with the potential for bleeding, tissue damage, and device failure. Here, we report a bioadhesive pacing lead that can directly interface with cardiac tissue through physical and covalent interactions to support minimally invasive adhesive implantation and gentle on-demand removal of the device with a detachment solution. We developed 3D-printable bioadhesive materials for customized fabrication of the device by graft-polymerizing polyacrylic acid on hydrophilic polyurethane and mixing with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) to obtain electrical conductivity. The bioadhesive construct exhibited mechanical properties similar to cardiac tissue and strong tissue adhesion, supporting stable electrical interfacing. Infusion of a detachment solution to cleave physical and covalent cross-links between the adhesive interface and the tissue allowed retrieval of the bioadhesive pacing leads in rat and porcine models without apparent tissue damage. Continuous and reliable cardiac monitoring and pacing of rodent and porcine hearts were demonstrated for 2 weeks with consistent capture threshold and sensing amplitude, in contrast to a commercially available alternative. Pacing and continuous telemetric monitoring were achieved in a porcine model. These findings may offer a promising platform for adhesive bioelectronic devices for cardiac monitoring and treatment.
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Affiliation(s)
- Jue Deng
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, 02139
| | - Jingjing Wu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, 02139
| | - Xiaoyu Chen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, 02139
| | | | - Claudia E Varela
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - William Whyte
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chuan Fei Guo
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ellen T Roche
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, 02139
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Leigh G Griffiths
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Hyunwoo Yuk
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, 02139
| | - Christoph S Nabzdyk
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Xuanhe Zhao
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, 02139
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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8
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Lu Y, Elrod J, Herrmann M, Knopf J, Boettcher M. Neutrophil Extracellular Traps: A Crucial Factor in Post-Surgical Abdominal Adhesion Formation. Cells 2024; 13:991. [PMID: 38891123 PMCID: PMC11171752 DOI: 10.3390/cells13110991] [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: 04/07/2024] [Revised: 05/27/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024] Open
Abstract
Post-surgical abdominal adhesions, although poorly understood, are highly prevalent. The molecular processes underlying their formation remain elusive. This review aims to assess the relationship between neutrophil extracellular traps (NETs) and the generation of postoperative peritoneal adhesions and to discuss methods for mitigating peritoneal adhesions. A keyword or medical subject heading (MeSH) search for all original articles and reviews was performed in PubMed and Google Scholar. It included studies assessing peritoneal adhesion reformation after abdominal surgery from 2003 to 2023. After assessing for eligibility, the selected articles were evaluated using the Critical Appraisal Skills Programme checklist for qualitative research. The search yielded 127 full-text articles for assessment of eligibility, of which 7 studies met our criteria and were subjected to a detailed quality review using the Critical Appraisal Skills Programme (CASP) checklist. The selected studies offer a comprehensive analysis of adhesion pathogenesis with a special focus on the role of neutrophil extracellular traps (NETs) in the development of peritoneal adhesions. Current interventional strategies are examined, including the use of mechanical barriers, advances in regenerative medicine, and targeted molecular therapies. In particular, this review emphasizes the potential of NET-targeted interventions as promising strategies to mitigate postoperative adhesion development. Evidence suggests that in addition to their role in innate defense against infections and autoimmune diseases, NETs also play a crucial role in the formation of peritoneal adhesions after surgery. Therefore, therapeutic strategies that target NETs are emerging as significant considerations for researchers. Continued research is vital to fully elucidate the relationship between NETs and post-surgical adhesion formation to develop effective treatments.
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Affiliation(s)
- Yuqing Lu
- Department of Pediatric Surgery, University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany
| | - Julia Elrod
- Department of Pediatric Surgery, University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany
| | - Martin Herrmann
- Department of Pediatric Surgery, University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Jasmin Knopf
- Department of Pediatric Surgery, University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany
| | - Michael Boettcher
- Department of Pediatric Surgery, University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany
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9
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Yang J, Wang Z, Liang X, Wang W, Wang S. Multifunctional polypeptide-based hydrogel bio-adhesives with pro-healing activities and their working principles. Adv Colloid Interface Sci 2024; 327:103155. [PMID: 38631096 DOI: 10.1016/j.cis.2024.103155] [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: 12/04/2023] [Revised: 03/08/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024]
Abstract
Wound healing is a complex physiological process involving hemostasis, inflammation, proliferation, and tissue remodeling. Therefore, there is an urgent need for suitable wound dressings for effective and systematical wound management. Polypeptide-based hydrogel bio-adhesives offer unique advantages and are ideal candidates. However, comprehensive reviews on polypeptide-based hydrogel bio-adhesives for wound healing are still lacking. In this review, the physiological mechanisms and evaluation parameters of wound healing were first described in detail. Then, the working principles of hydrogel bio-adhesives were summarized. Recent advances made in multifunctional polypeptide-based hydrogel bio-adhesives involving gelatin, silk fibroin, fibrin, keratin, poly-γ-glutamic acid, ɛ-poly-lysine, serum albumin, and elastin with pro-healing activities in wound healing and tissue repair were reviewed. Finally, the current status, challenges, developments, and future trends of polypeptide-based hydrogel bio-adhesives were discussed, hoping that further developments would be stimulated to meet the growing needs of their clinical applications.
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Affiliation(s)
- Jiahao Yang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, P. R. China
| | - Zhengyue Wang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, SAR 999077, P. R. China
| | - Xiaoben Liang
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, P. R. China
| | - Wenyi Wang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, SAR 999077, P. R. China.
| | - Shige Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, P. R. China.
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10
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Huang Y, Dai X, Gong Y, Ren L, Luo Y, Sun Y, Chen M, Jiang J, Guan Z, Zhao C. ROS-responsive sprayable hydrogel as ROS scavenger and GATA6 + macrophages trap for the prevention of postoperative abdominal adhesions. J Control Release 2024; 369:573-590. [PMID: 38554773 DOI: 10.1016/j.jconrel.2024.03.051] [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: 12/20/2023] [Revised: 03/13/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Postoperative abdominal adhesions are a common clinical problem after surgery and can cause many serious complications. Current most commonly used antiadhesion products are less effective due to their short residence time and focus primary on barrier function. Herein, we developed a sprayable hydrogel barrier (sHA-ADH/OHA-E) with self-regulated drug release based on ROS levels at the trauma site, to serve as a smart inflammatory microenvironment modulator and GATA6+ macrophages trap for non-adherent recovery from abdominal surgery. Sulfonated hyaluronic acid (HA) conjugates modified with adipic dihydrazide (sHA-ADH), and oxidized HA conjugates grafted with epigallocatechin-3-gallate (EGCG) via ROS-cleavable boronate bonds (OHA-E) were synthesized. sHA-ADH/OHA-E hydrogel was facilely fabricated within 5 s after simply mixing sHA-ADH and OHA-E through forming dynamic covalent acylhydrazones. With good biocompatibility, appropriate mechanical strength, tunable shear-thinning, self-healing, asymmetric adhesion, and reasonable in vivo retention time, sHA-ADH/OHA-E hydrogel meets the requirements of a perfect physical barrier. Intriguingly, sulfonic acid groups endowed the hydrogel with satisfactory anti-fibroblast and macrophage attachment capability, and were demonstrated for the first time to act as polyanion traps to prevent GATA6+ macrophages aggregation. Importantly, EGCG could be intelligently released by ROS triggering to alleviate oxidative stress and promote proinflammatory M1 macrophage polarize to antiinflammatory M2 phenotype. Further, the fibrinolytic system balance was restored to reduce fibrosis. Thanks to the above advantages, the sHA-ADH/OHA-E hydrogel exhibited excellent anti-adhesion effects in a rat sidewall defect-cecum abrasion model and is expected to be a promising and clinically translatable antiadhesion barrier.
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Affiliation(s)
- Yanjuan Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Xiuling Dai
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Yujun Gong
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Lingling Ren
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Yong Luo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Yue Sun
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Meixu Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Jingwen Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Zilin Guan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Chunshun Zhao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China; State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China.
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11
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Tang S, Pederson Z, Meany EL, Yen CW, Swansiger AK, Prell JS, Chen B, Grosskopf AK, Eckman N, Jiang G, Baillet J, Pellett JD, Appel EA. Label-Free Composition Analysis of Supramolecular Polymer-Nanoparticle Hydrogels by Reversed-Phase Liquid Chromatography Coupled with a Charged Aerosol Detector. Anal Chem 2024; 96:5860-5868. [PMID: 38567987 DOI: 10.1021/acs.analchem.3c05747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Supramolecular hydrogels formed through polymer-nanoparticle interactions are promising biocompatible materials for translational medicines. This class of hydrogels exhibits shear-thinning behavior and rapid recovery of mechanical properties, providing desirable attributes for formulating sprayable and injectable therapeutics. Characterization of hydrogel composition and loading of encapsulated drugs is critical to achieving the desired rheological behavior as well as tunable in vitro and in vivo payload release kinetics. However, quantitation of hydrogel composition is challenging due to material complexity, heterogeneity, high molecular weight, and the lack of chromophores. Here, we present a label-free approach to simultaneously determine hydrogel polymeric components and encapsulated payloads by coupling a reversed phase liquid chromatographic method with a charged aerosol detector (RPLC-CAD). The hydrogel studied consists of modified hydroxypropylmethylcellulose, self-assembled PEG-b-PLA nanoparticles, and a therapeutic compound, bimatoprost. The three components were resolved and quantitated using the RPLC-CAD method with a C4 stationary phase. The method demonstrated robust performance, applicability to alternative cargos (i.e., proteins) and was suitable for composition analysis as well as for evaluating in vitro release of cargos from the hydrogel. Moreover, this method can be used to monitor polymer degradation and material stability, which can be further elucidated by coupling the RPLC method with (1) a multi-angle light scattering detector (RPLC-MALS) or (2) high resolution mass spectrometry (RPLC-MS) and a Fourier-transform based deconvolution algorithm. We envision that this analytical strategy could be generalized to characterize critical quality attributes of other classes of supramolecular hydrogels, establish structure-property relationships, and provide rational design guidance in hydrogel drug product development.
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Affiliation(s)
- Shijia Tang
- Synthetic Molecule Pharmaceutical Sciences, Genentech, Inc., South San Francisco, California 94080, United States
| | - Zachary Pederson
- Synthetic Molecule Pharmaceutical Sciences, Genentech, Inc., South San Francisco, California 94080, United States
| | - Emily L Meany
- Department of Bioengineering, Stanford University, Stanford, California 94305, United States
| | - Chun-Wan Yen
- Synthetic Molecule Pharmaceutical Sciences, Genentech, Inc., South San Francisco, California 94080, United States
| | - Andrew K Swansiger
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - James S Prell
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Bifan Chen
- Synthetic Molecule Pharmaceutical Sciences, Genentech, Inc., South San Francisco, California 94080, United States
| | - Abigail K Grosskopf
- Preclinical and Translational Pharmacokinetics and Pharmacodynamics, Genentech, Inc, South San Francisco, California 94080, United States
| | - Noah Eckman
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Grace Jiang
- Department of Bioengineering, Stanford University, Stanford, California 94305, United States
| | - Julie Baillet
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Jackson D Pellett
- Synthetic Molecule Pharmaceutical Sciences, Genentech, Inc., South San Francisco, California 94080, United States
| | - Eric A Appel
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
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12
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Yang Y, Wang J, Yang J, Wu X, Tian Y, Tang H, Li N, Liu X, Zhou M, Liu J, Ling Q, Zang J. A Laparoscopically Compatible Rapid-Adhesion Bioadhesive for Asymmetric Adhesion, Non-Pressing Hemostasis, and Seamless Seal. Adv Healthc Mater 2024; 13:e2304059. [PMID: 38267400 DOI: 10.1002/adhm.202304059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/09/2024] [Indexed: 01/26/2024]
Abstract
Bioadhesive hydrogels offer unprecedented opportunities in hemostatic agents and tissue sealing; however, the application of existing bioadhesive hydrogels through narrow spaces to achieve strong adhesion in fluid-rich physiological environments is challenged either by undesired indiscriminate adhesion or weak wet tissue adhesion. Here, a laparoscopically compatible asymmetric adhesive hydrogel (aAH) composed of sprayable adhesive hydrogel powders and injectable anti-adhesive glue is proposed for hemostasis and to seal the bloody tissues in a non-pressing way, allowing for preventing postoperative adhesion. The powders can seed on the irregular bloody wound to rapidly absorb interfacial fluid, crosslink, and form an adhesive hydrogel to hemostatic seal (blood clotting time and tissue sealing in 10 s, ≈200 mm Hg of burst pressure in sealed porcine tissues). The aAH can be simply formed by crosslinking the upper powder with injectable glue to prevent postoperative adhesion (adhesive strength as low as 1 kPa). The aAH outperforms commercial hemostatic agents and sealants in the sealing of bleeding organs in live rats, demonstrating superior anti-adhesive efficiency. Further, the hemostatic seamless sealing by aAH succeeds in shortening the time of warm ischemia, decreasing the blood loss, and reducing the possibility of rebleeding in the porcine laparoscopic partial nephrectomy model.
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Affiliation(s)
- Yueying Yang
- School of Integrated Circuits and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Jiaxin Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Jiashen Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Xiaoyu Wu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Ye Tian
- School of Integrated Circuits and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Hanchuan Tang
- School of Integrated Circuits and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Na Li
- School of Integrated Circuits and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xurui Liu
- School of Integrated Circuits and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Mengyuan Zhou
- School of Integrated Circuits and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Qing Ling
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Jianfeng Zang
- School of Integrated Circuits and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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13
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Zhao Z, Sun H, Yu C, Liu B, Liu R, Yang Q, Guo B, Li X, Yao M, Yao F, Zhang H, Li J. Injectable Asymmetric Adhesive-Antifouling Bifunctional Hydrogel for Peritoneal Adhesion Prevention. Adv Healthc Mater 2024; 13:e2303574. [PMID: 38115543 DOI: 10.1002/adhm.202303574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/10/2023] [Indexed: 12/21/2023]
Abstract
Peritoneal adhesion is a common problem after abdominal surgery and can lead to various medical problems. In response to the lack of in situ retention and pro-wound healing properties of existing anti-adhesion barriers, this work reports an injectable adhesive-antifouling bifunctional hydrogel (AAB-hydrogel). This AAB-hydrogel can be constructed by "two-step" injection. The tissue adhesive hydrogel based on gallic acid-modified chitosan and aldehyde-modified dextran is prepared as the bottom hydrogel (B-hydrogel) by Schiff base reaction. The aldehyde-modified zwitterionic dextran/carboxymethyl chitosan-based hydrogel is formed on the B-hydrogel surface as the antifouling top hydrogel (T-hydrogel). The AAB-hydrogel exhibits good bilayer binding and asymmetric properties, including tissue adhesive, antifouling, and antimicrobial properties. To evaluate the anti-adhesion effect in vivo, the prepared hydrogels are injected onto the wound surface of a mouse abdominal wall abrasion-cecum defect model. Results suggest that the AAB-hydrogel has antioxidant capacity and can reduce the postoperative inflammatory response by modulating the macrophage phenotype. Moreover, the AAB-hydrogel could effectively inhibit the formation of postoperative adhesions by reducing protein deposition, and resisting fibroblast adhesions and bacteria attacking. Therefore, AAB-hydrogel is a promising candidate for the prevention of postoperative peritoneal adhesions.
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Affiliation(s)
- Zhongming Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Hong Sun
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, 063210, China
| | - Chaojie Yu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Baijun Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Rui Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Qi Yang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Bingyan Guo
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xiuqiang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Mengmeng Yao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Fanglian Yao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300350, China
| | - Hong Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300350, China
| | - Junjie Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300350, China
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14
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Zhang Y, Pan Y, Chang R, Chen K, Wang K, Tan H, Yin M, Liu C, Qu X. Advancing homogeneous networking principles for the development of fatigue-resistant, low-swelling and sprayable hydrogels for sealing wet, dynamic and concealed wounds in vivo. Bioact Mater 2024; 34:150-163. [PMID: 38225944 PMCID: PMC10788230 DOI: 10.1016/j.bioactmat.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/14/2023] [Accepted: 12/01/2023] [Indexed: 01/17/2024] Open
Abstract
Effective sealing of wet, dynamic and concealed wounds remains a formidable challenge in clinical practice. Sprayable hydrogel sealants are promising due to their ability to cover a wide area rapidly, but they face limitations in dynamic and moist environments. To address this issue, we have employed the principle of a homogeneous network to design a sprayable hydrogel sealant with enhanced fatigue resistance and reduced swelling. This network is formed by combining the spherical structure of lysozyme (LZM) with the orthotetrahedral structure of 4-arm-polyethylene glycol (4-arm-PEG). We have achieved exceptional sprayability by controlling the pH of the precursor solution. The homogeneous network, constructed through uniform cross-linking of amino groups in protein and 4-arm-PEG-NHS, provides the hydrogel with outstanding fatigue resistance, low swelling and sustained adhesion. In vitro testing demonstrated that it could endure 2000 cycles of underwater shearing, while in vivo experiments showed adhesion maintenance exceeding 24 h. Furthermore, the hydrogel excelled in sealing leaks and promoting ulcer healing in models including porcine cardiac hemorrhage, lung air leakage and rat oral ulcers, surpassing commonly used clinical materials. Therefore, our research presents an advanced biomaterial strategy with the potential to advance the clinical management of wet, dynamic and concealed wounds.
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Affiliation(s)
- Yi Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Yanjun Pan
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China
| | - Ronghang Chang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Kangli Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Kun Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Haoqi Tan
- Suzhou Innovation Center of Shanghai University, Shanghai University, Suzhou 215000, Jiangsu, China
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
- Shanghai Frontier Science Center of Optogenetic Techniques for Cell Metabolism Shanghai, 200237, China
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15
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Zhu Y, Zhang C, Liang Y, Shi J, Yu Q, Liu S, Yu D, Liu H. Advanced postoperative tissue antiadhesive membranes enabled with electrospun nanofibers. Biomater Sci 2024; 12:1643-1661. [PMID: 38411223 DOI: 10.1039/d3bm02038j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Tissue adhesion is one of the most common postoperative complications, which is frequently accompanied by inflammation, pain, and even dyskinesia, significantly reducing the quality of life of patients. Thus, to prevent the formation of tissue adhesions, various strategies have been explored. Among these methods, placing anti-adhesion membranes over the injured site to separate the wound from surrounding tissues is a simple and prominently favored method. Recently, electrospun nanofibers have been the most frequently investigated antiadhesive membranes due to their tunable porous structure and high porosities. They not only can act as an essential barrier and functional carrier system but also allow for high permeability and nutrient transport, showing great potential for preventing tissue adhesion. Herein, we provide a short review of the most recent applications of electrospun nanofibrous antiadhesive membranes in tendons, the abdominal cavity, dural sac, pericardium, and meninges. Firstly, each section highlights the most representative examples and they are sorted based on the latest progress of related research. Moreover, the design principles, preparation strategies, overall performances, and existing problems are highlighted and evaluated. Finally, the current challenges and several future ways to develop electrospun nanofibrous antiadhesive membranes are proposed. The systematic discussion and proposed directions can shed light on ideas and guide the reasonable design of electrospun nanofibrous membranes, contributing to the development of exceptional tissue anti-adhesive materials in the foreseeable future.
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Affiliation(s)
- Yanting Zhu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
| | - Chenwei Zhang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
| | - Ying Liang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
| | - Jianyuan Shi
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
| | - Qiuhao Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
| | - Shen Liu
- Department of Orthopaedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Dengguang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
- Shanghai Engineering Technology Research Center for High-Performance Medical Device Materials, Shanghai 200093, PR China
| | - Hui Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
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16
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Du S, Zhou X, Zheng B. Beyond Traditional Medicine: EVs-Loaded Hydrogels as a Game Changer in Disease Therapeutics. Gels 2024; 10:162. [PMID: 38534580 DOI: 10.3390/gels10030162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/29/2024] [Accepted: 02/06/2024] [Indexed: 03/28/2024] Open
Abstract
Extracellular vesicles (EVs), especially exosomes, have shown great therapeutic potential in the treatment of diseases, as they can target cells or tissues. However, the therapeutic effect of EVs is limited due to the susceptibility of EVs to immune system clearance during transport in vivo. Hydrogels have become an ideal delivery platform for EVs due to their good biocompatibility and porous structure. This article reviews the preparation and application of EVs-loaded hydrogels as a cell-free therapy strategy in the treatment of diseases. The article also discusses the challenges and future outlook of EVs-loaded hydrogels.
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Affiliation(s)
- Shutong Du
- Institute for Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Xiaohu Zhou
- Institute for Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Bo Zheng
- Institute for Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China
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17
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Huang Y, Zheng J, Zeng G, Xu H, Lv Y, Liang X, Jin L, Jiang X. Chitosan-crosslinked polyvinyl alcohol anti-swelling hydrogel designed to prevent abdominal wall adhesion. Mater Today Bio 2024; 24:100931. [PMID: 38234460 PMCID: PMC10792486 DOI: 10.1016/j.mtbio.2023.100931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/13/2023] [Accepted: 12/25/2023] [Indexed: 01/19/2024] Open
Abstract
Abdominal adhesion is a frequent clinical issue with a high incidence rate and consequences following intra-abdominal surgery. Although many anti-adhesion materials have been used in surgical procedures, additional research is still needed to determine which ones have the most robust wet tissue adhesion, the best anti-postoperative adhesion, and the best anti-inflammatory properties. We have developed an excellent tissue adhesion and anti-swelling polyvinyl alcohol-chitosan hydrogel (AS hydrogel). According to in vitro cell testing, AS hydrogel significantly decreased inflammation around cells and exhibited good biocompatibility. Further, we assessed how well AS hydrogel prevented intraperitoneal adhesion using a rabbit model with cecum and abdominal wall injuries. According to the data, AS hydrogel has excellent anti-inflammatory and biodegradability properties compared to the control group. It can also prevent intestinal and abdominal wall injuries from occurring during surgery. Based on these results, hydrogel appears to be a perfect new material to prevent postoperative abdominal wall adhesion.
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Affiliation(s)
- Yiqiao Huang
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510700, China
| | - Jiefang Zheng
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510700, China
| | - Guohao Zeng
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510700, China
| | - Huanhuan Xu
- International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou, 466001, China
| | - Yangyang Lv
- International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou, 466001, China
| | - Xue Liang
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510700, China
| | - Lin Jin
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510700, China
- International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou, 466001, China
| | - Xianhan Jiang
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510700, China
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18
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Li J, Liang J, Chen S, Guo W, Chen T, Liu X. A Janus adhesive hydrogel sheet for preventing postoperative tissue adhesion of intestinal injuries. RSC Adv 2024; 14:4416-4423. [PMID: 38304561 PMCID: PMC10832361 DOI: 10.1039/d3ra08867g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/17/2024] [Indexed: 02/03/2024] Open
Abstract
Although adhesive hydrogels represent an alternative to surgical sutures for non-invasive tissue wound sealing, those with indiscriminate adhesion fail to hold wounds while inhibiting postoperative tissue adhesion, thus limiting their application in intestinal repair. In this study, an asymmetric adhesive hydrogel sheet composed mainly of polyacrylic acid (PAA) and gelatin (GA) that can be wet-adhered to the surface of intestinal tissue was developed. One side of the GA-PAA hydrogel sheet was complexed with polyvinyl alcohol (PVA), which shielded the excess adhesion based on a physical barrier. Both sides of the PVA/GA-PAA hydrogel showed distinct adhesive and antiadhesive properties. Intriguingly, the anti-adhesive side showed significant anti-adhesion toward specific proteins. The results of animal experiments showed that the PVA/GA-PAA hydrogel could firmly adhere to the intestine to stop leakage and prevent post-operative tissue adhesion two weeks after surgery. The hematoxylin and eosin (H&E) staining results showed that the damaged intestinal serosa was repaired without tissue adhesion. It is believed that the controllable adhesion of the adhesive hydrogel offers better prospects for intestinal repair.
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Affiliation(s)
- Jingmei Li
- Department of Stomatology, Nanfang Hospital, Southern Medical University Guangzhou 510515 P.R. China
| | - Jiadi Liang
- Center of Stomatology, Shunde Hospital of Southern Medical University Foshan 528000 P.R. China
| | - Shanshan Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University Guangzhou 510515 P.R. China
| | - Wucheng Guo
- Department of Stomatology, Nanfang Hospital, Southern Medical University Guangzhou 510515 P.R. China
| | - Ting Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University Guangzhou 510515 P.R. China
| | - Xiqiang Liu
- Department of Stomatology, Nanfang Hospital, Southern Medical University Guangzhou 510515 P.R. China
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19
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Ou BS, Baillet J, Picece VCT, Gale EC, Powell AE, Saouaf OM, Yan J, Nejatfard A, Lopez Hernandez H, Appel EA. Nanoparticle-Conjugated Toll-Like Receptor 9 Agonists Improve the Potency, Durability, and Breadth of COVID-19 Vaccines. ACS NANO 2024; 18:3214-3233. [PMID: 38215338 PMCID: PMC10832347 DOI: 10.1021/acsnano.3c09700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 01/14/2024]
Abstract
Development of effective vaccines for infectious diseases has been one of the most successful global health interventions in history. Though, while ideal subunit vaccines strongly rely on antigen and adjuvant(s) selection, the mode and time scale of exposure to the immune system has often been overlooked. Unfortunately, poor control over the delivery of many adjuvants, which play a key role in enhancing the quality and potency of immune responses, can limit their efficacy and cause off-target toxicities. There is a critical need for improved adjuvant delivery technologies to enhance their efficacy and boost vaccine performance. Nanoparticles have been shown to be ideal carriers for improving antigen delivery due to their shape and size, which mimic viral structures but have been generally less explored for adjuvant delivery. Here, we describe the design of self-assembled poly(ethylene glycol)-b-poly(lactic acid) nanoparticles decorated with CpG, a potent TLR9 agonist, to increase adjuvanticity in COVID-19 vaccines. By controlling the surface density of CpG, we show that intermediate valency is a key factor for TLR9 activation of immune cells. When delivered with the SARS-CoV-2 spike protein, CpG nanoparticle (CpG-NP) adjuvant greatly improves the magnitude and duration of antibody responses when compared to soluble CpG, and results in overall greater breadth of immunity against variants of concern. Moreover, encapsulation of CpG-NP into injectable polymeric-nanoparticle (PNP) hydrogels enhances the spatiotemporal control over codelivery of CpG-NP adjuvant and spike protein antigen such that a single immunization of hydrogel-based vaccines generates humoral responses comparable to those of a typical prime-boost regimen of soluble vaccines. These delivery technologies can potentially reduce the costs and burden of clinical vaccination, both of which are key elements in fighting a pandemic.
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Affiliation(s)
- Ben S. Ou
- Department
of Bioengineering, Stanford University, Stanford, California 94305, United States
| | - Julie Baillet
- Department
of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Vittoria C. T.
M. Picece
- Department
of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
- Department
of Chemistry and Applied Biosciences, ETH
Zurich, Zurich 8093, Switzerland
| | - Emily C. Gale
- Department
of Biochemistry, Stanford University School
of Medicine, Stanford, California 94305, United States
| | - Abigail E. Powell
- Department
of Biochemistry, Stanford University School
of Medicine, Stanford, California 94305, United States
- Stanford
ChEM-H, Stanford University, Stanford, California 94305, United States
| | - Olivia M. Saouaf
- Department
of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Jerry Yan
- Department
of Bioengineering, Stanford University, Stanford, California 94305, United States
| | - Anahita Nejatfard
- Department
of Biochemistry, Stanford University School
of Medicine, Stanford, California 94305, United States
| | - Hector Lopez Hernandez
- Department
of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Eric A. Appel
- Department
of Bioengineering, Stanford University, Stanford, California 94305, United States
- Department
of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
- Stanford
ChEM-H, Stanford University, Stanford, California 94305, United States
- Department
of Pediatrics - Endocrinology, Stanford
University School of Medicine, Stanford, California 94305, United States
- Woods
Institute for the Environment, Stanford
University, Stanford, California 94305, United States
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20
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Kargozar S, Gorgani S, Nazarnezhad S, Wang AZ. Biocompatible Nanocomposites for Postoperative Adhesion: A State-of-the-Art Review. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:4. [PMID: 38202459 PMCID: PMC10780749 DOI: 10.3390/nano14010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024]
Abstract
To reduce and prevent postsurgical adhesions, a variety of scientific approaches have been suggested and applied. This includes the use of advanced therapies like tissue-engineered (TE) biomaterials and scaffolds. Currently, biocompatible antiadhesive constructs play a pivotal role in managing postoperative adhesions and several biopolymer-based products, namely hyaluronic acid (HA) and polyethylene glycol (PEG), are available on the market in different forms (e.g., sprays, hydrogels). TE polymeric constructs are usually associated with critical limitations like poor biocompatibility and mechanical properties. Hence, biocompatible nanocomposites have emerged as an advanced therapy for postoperative adhesion treatment, with hydrogels and electrospun nanofibers among the most utilized antiadhesive nanocomposites for in vitro and in vivo experiments. Recent studies have revealed that nanocomposites can be engineered to generate smart three-dimensional (3D) scaffolds that can respond to different stimuli, such as pH changes. Additionally, nanocomposites can act as multifunctional materials for the prevention of adhesions and bacterial infections, as well as tissue healing acceleration. Still, more research is needed to reveal the clinical potential of nanocomposite constructs and the possible success of nanocomposite-based products in the biomedical market.
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Affiliation(s)
- Saeid Kargozar
- Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, TX 75390, USA;
| | - Sara Gorgani
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran; (S.G.); (S.N.)
| | - Simin Nazarnezhad
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran; (S.G.); (S.N.)
| | - Andrew Z. Wang
- Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, TX 75390, USA;
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21
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Deng X, Zhao R, Tang Y, Yi M, Ge Z, Wang D, Fang Q, Xiong Z, Duan A, Liu W, Zhang Z, Xiang Y, Hu X, Lin W, Wang G. Highly Biocompatible Polyester-Based Piezoelectric Elastomer with Antitumor and Antibacterial Activity for Ultrasound-Enhanced Piezoelectric Therapy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55308-55322. [PMID: 37991726 DOI: 10.1021/acsami.3c11749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Currently, the use of piezoelectric materials to provide sustainable and noninvasive bioelectric stimulation to eradicate tumor cells and accelerate wound healing has raised wide attention. The development of a multifunctional piezoelectric elastomer with the ability to perform in situ tumor therapy as well as wound repair is of paramount importance. However, current piezoelectric materials have a large elastic modulus and limited stretchability, making it difficult to match with the dynamic curvature changes of the wound. Therefore, by copolymerizing lactic acid, butanediol, sebacic acid, and itaconic acid to develop a piezoelectric elastomer (PLBSIE), we construct a new ultrasound-activated PLBSIE-based tumor/wound unified therapeutic platform. Excitedly, it showed outstanding piezoelectric performance and high stretchability, and the separated carrier could react with water to generate highly cytotoxic reactive oxygen species (ROS), contributing to effectively killing tumor cells and eliminating bacteria through piezoelectric therapy. In addition, ultrasound-triggered piezoelectric effects could promote the migration and differentiation of wound-healing-related cells, thus accelerating wound healing. Herein, such a piezoelectric elastomer exerted a critical role in postoperative tumor-induced wound therapy and healing with the merits of possessing multifunctional abilities. Taken together, the developed ultrasound-activated PLBSIE will offer a comprehensive treatment for postoperative osteosarcoma therapy.
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Affiliation(s)
- Xiangtian Deng
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Renliang Zhao
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yunfeng Tang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Min Yi
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zilu Ge
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dong Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qian Fang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhencheng Xiong
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ao Duan
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wenzheng Liu
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yong Xiang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Xiaoran Hu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Wei Lin
- Department of Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China
| | - Guanglin Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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22
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Zheng H, Li M, Wu L, Liu W, Liu Y, Gao J, Lu Z. Progress in the application of hydrogels in immunotherapy of gastrointestinal tumors. Drug Deliv 2023; 30:2161670. [PMID: 36587630 PMCID: PMC9809389 DOI: 10.1080/10717544.2022.2161670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Gastrointestinal tumors are the most common cancers with the highest morbidity and mortality worldwide. Surgery accompanied by chemotherapy, radiotherapy and targeted therapy remains the first option for gastrointestinal tumors. However, poor specificity for tumor cells of these postoperative treatments often leads to severe side effects and poor prognosis. Tumor immunotherapy, including checkpoint blockade and tumor vaccines, has developed rapidly in recent years, showing good curative effects and minimal side effects in the treatment of gastrointestinal tumors. National Comprehensive Cancer Network guidelines recommend tumor immunotherapy as part of the treatment of gastrointestinal tumors. However, the heterogeneity of tumor cells, complicacy of the tumor microenvironment and poor tumor immunogenicity hamper the effectiveness of tumor immunotherapy. Hydrogels, defined as three-dimensional, hydrophilic, and water-insoluble polymeric networks, could significantly improve the overall response rate of immunotherapy due to their superior drug loading efficacy, controlled release and drug codelivery ability. In this article, we briefly describe the research progress made in recent years on hydrogel delivery systems in immunotherapy for gastrointestinal tumors and discuss the potential future application prospects and challenges to provide a reference for the clinical application of hydrogels in tumor immunotherapy.
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Affiliation(s)
- Hao Zheng
- Department of General Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Meng Li
- Department of Dermatology, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Lili Wu
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Wenshang Liu
- Department of Dermatology, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yu Liu
- Department of Gastroenterology, Jinling Hospital, Medical School of Nanjing University, Jiangsu, China
| | - Jie Gao
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China,Jie Gao Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Zhengmao Lu
- Department of General Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China,CONTACT Zhengmao Lu Department of General Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai200433, China
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23
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d'Aquino AI, Maikawa CL, Nguyen LT, Lu K, Hall IA, Jons CK, Kasse CM, Yan J, Prossnitz AN, Chang E, Baker SW, Hovgaard L, Steensgaard DB, Andersen HB, Simonsen L, Appel EA. Use of a biomimetic hydrogel depot technology for sustained delivery of GLP-1 receptor agonists reduces burden of diabetes management. Cell Rep Med 2023; 4:101292. [PMID: 37992687 PMCID: PMC10694761 DOI: 10.1016/j.xcrm.2023.101292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 08/02/2023] [Accepted: 10/23/2023] [Indexed: 11/24/2023]
Abstract
Glucagon-like peptide-1 (GLP-1) is an incretin hormone and neurotransmitter secreted from intestinal L cells in response to nutrients to stimulate insulin and block glucagon secretion in a glucose-dependent manner. Long-acting GLP-1 receptor agonists (GLP-1 RAs) have become central to treating type 2 diabetes (T2D); however, these therapies are burdensome, as they must be taken daily or weekly. Technological innovations that enable less frequent administrations would reduce patient burden and increase patient compliance. Herein, we leverage an injectable hydrogel depot technology to develop a GLP-1 RA drug product capable of months-long GLP-1 RA delivery. Using a rat model of T2D, we confirm that one injection of hydrogel-based therapy sustains exposure of GLP-1 RA over 42 days, corresponding to a once-every-4-months therapy in humans. Hydrogel therapy maintains management of blood glucose and weight comparable to daily injections of a leading GLP-1 RA drug. This long-acting GLP-1 RA treatment is a promising therapy for more effective T2D management.
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Affiliation(s)
- Andrea I d'Aquino
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94025, USA
| | - Caitlin L Maikawa
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Leslee T Nguyen
- Department of Biochemistry, Stanford University, Palo Alto, CA 94305, USA
| | - Katie Lu
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Ian A Hall
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Carolyn K Jons
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94025, USA
| | - Catherine M Kasse
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94025, USA
| | - Jerry Yan
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Alexander N Prossnitz
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94025, USA
| | - Enmian Chang
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94025, USA
| | - Sam W Baker
- Department of Comparative Medicine, Stanford University, Palo Alto, CA 94305, USA
| | - Lars Hovgaard
- Department of Biophysics and Formulations, Global Research Technologies, Novo Nordisk Park, 2760 Maaloev, Denmark
| | - Dorte B Steensgaard
- Department of Biophysics and Formulations, Global Research Technologies, Novo Nordisk Park, 2760 Maaloev, Denmark
| | - Hanne B Andersen
- Department of Biophysics and Formulations, Global Research Technologies, Novo Nordisk Park, 2760 Maaloev, Denmark
| | - Lotte Simonsen
- Department of Obesity Research, Global Drug Discovery, Novo Nordisk Park, 2760 Maaloev, Denmark
| | - Eric A Appel
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94025, USA; Department of Bioengineering, Stanford University, Stanford, CA 94305, USA; ChEM-H Institute, Stanford University, Stanford, CA 94305, USA; Department of Pediatrics (Endocrinology), Stanford University, Stanford, CA 94305, USA; Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA.
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24
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Zhang H, Wu Z, Zhou J, Wang Z, Yang C, Wang P, Fareed MS, He Y, Su J, Cha R, Wang K. The Antimicrobial, Hemostatic, and Anti-Adhesion Effects of a Peptide Hydrogel Constructed by the All-d-Enantiomer of Antimicrobial Peptide Jelleine-1. Adv Healthc Mater 2023; 12:e2301612. [PMID: 37552211 DOI: 10.1002/adhm.202301612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/21/2023] [Indexed: 08/09/2023]
Abstract
Peptide hydrogels are believed to be potential biomaterials with wide application in the biomedical field because of their good biocompatibility, injectability, and 3D printability. Most of the previously reported polypeptide hydrogels are composed of l-peptides, while the hydrogels formed by self-assembly of d-peptides are rarely reported. Herein, a peptide hydrogel constructed by D-J-1, which is the all-d-enantiomer of antimicrobial peptide Jelleine-1 (J-1) is reported. Field emission scanning electron microscope (FE-SEM) and rheologic study are performed to characterize the hydrogel. Antimicrobial, hemostatic, and anti-adhesion studies are carried out to evaluate its biofunction. The results show that D-J-1 hydrogel is formed by self-assembly and cross-linking driven by hydrogen bonding, hydrophobic interaction, and π-π stacking force of aromatic ring in the structure of D-J-1. It exhibits promising antimicrobial activity, hemostatic activity, and anti-adhesion efficiency in a rat sidewall defect-cecum abrasion model. In addition, it also exhibits good biocompatibility. Notably, D-J-1 hydrogel shows improved in vitro and in vivo stability when compared with its l-enantiomer J-1 hydrogel. Therefore, the present study will provide new insight into the application of d-peptide hydrogel, and provides a new peptide hydrogel with antibacterial, hemostatic, and anti-adhesion efficacy for clinical use.
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Affiliation(s)
- Hanru Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
- Department of Obstetrics & Gynecology, Gansu Provincial Maternity and Child Care Hospital, North Road 143, Qilihe District, Lanzhou, 730000, P. R. China
| | - Zhiyu Wu
- The First School of Clinical Medicine, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Jingjing Zhou
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Zhaopeng Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Changyan Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Panpan Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Muhammad Subaan Fareed
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Yuhang He
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Jie Su
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
| | - Ruitao Cha
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, P. R. China
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences 2019RU066, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, P. R. China
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25
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Zhang P, Gong Y, Pan Q, Fan Z, Li G, Pei M, Zhang J, Wang T, Zhou G, Wang X, Ren W. Multifunctional calcium polyphenol networks reverse the hostile microenvironment of trauma for preventing postoperative peritoneal adhesions. Biomater Sci 2023; 11:6848-6861. [PMID: 37646188 DOI: 10.1039/d3bm01091k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Abdominal adhesions, a commonly observed complication of abdominal surgery, have a high incidence and adversely affect patients' physical and mental health. The primary causes of abdominal adhesions are intraoperative trauma, acute inflammatory response, bleeding, and foreign body infection. Because most current treatment approaches for abdominal adhesions are limited, improved and novel postoperative anti-adhesion regimens are urgently needed. In this study, we developed calcium polyphenol network (CaPN) microspheres based on the self-assembly of the natural triphenolic compound gallic acid and Ca2+ in solution. The physicochemical properties of CaPNs, including their hemostatic, antibacterial, antioxidant, and anti-inflammatory activities, were investigated in vitro. Bleeding and cecal-abdominal wall adhesion models were established to observe the hemostatic activity of CaPNs and their preventive effect on postoperative abdominal wall adhesion in vivo. The results showed that CaPNs significantly reduced inflammation, oxidative stress, fibrosis, and abdominal adhesion formation and had good hemostatic and antibacterial properties. Our findings suggest a novel strategy for the prevention of postoperative adhesions.
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Affiliation(s)
- Pei Zhang
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
| | - Yan Gong
- Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Qingqing Pan
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
| | - Zhenlin Fan
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
| | - Genke Li
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
- Department of Orthopedics, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, China
| | - Mengyu Pei
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
| | - Junhe Zhang
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
| | - Tianyun Wang
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
- Xinxiang University, Xinxiang, Henan Province 453000, China
| | - Guangdong Zhou
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
- Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Xiansong Wang
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
- Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Wenjie Ren
- The Third Affiliated Hospital of Xinxiang Medical University, Institutes of Health Central Plain, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China.
- Department of Orthopedics, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, China
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26
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Yu C, Shi M, He S, Yao M, Sun H, Yue Z, Qiu Y, Liu B, Liang L, Zhao Z, Yao F, Zhang H, Li J. Chronological adhesive cardiac patch for synchronous mechanophysiological monitoring and electrocoupling therapy. Nat Commun 2023; 14:6226. [PMID: 37803005 PMCID: PMC10558550 DOI: 10.1038/s41467-023-42008-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/22/2023] [Indexed: 10/08/2023] Open
Abstract
With advances in tissue engineering and bioelectronics, flexible electronic hydrogels that allow conformal tissue integration, online precision diagnosis, and simultaneous tissue regeneration are expected to be the next-generation platform for the treatment of myocardial infarction. Here, we report a functionalized polyaniline-based chronological adhesive hydrogel patch (CAHP) that achieves spatiotemporally selective and conformal embedded integration with a moist and dynamic epicardium surface. Significantly, CAHP has high adhesion toughness, rapid self-healing ability, and enhanced electrochemical performance, facilitating sensitive sensing of cardiac mechanophysiology-mediated microdeformations and simultaneous improvement of myocardial fibrosis-induced electrophysiology. As a result, the flexible CAHP platform monitors diastolic-systolic amplitude and rhythm in the infarcted myocardium online while effectively inhibiting ventricular remodeling, promoting vascular regeneration, and improving electrophysiological function through electrocoupling therapy. Therefore, this diagnostic and therapeutic integration provides a promising monitorable treatment protocol for cardiac disease.
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Affiliation(s)
- Chaojie Yu
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, 300350, Tianjin, China
| | - Mingyue Shi
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
- School of Chemical Science and Engineering, Tongji University, 200092, Shanghai, China
| | - Shaoshuai He
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
- Thrust of Sustainable Energy and Environment, The Hong Kong University of Science and Technology (Guangzhou), 511400, Guangzhou, China
| | - Mengmeng Yao
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
| | - Hong Sun
- School of Basic Medical Sciences, North China University of Science and Technology, 063210, Tangshan, China.
| | - Zhiwei Yue
- School of Basic Medical Sciences, North China University of Science and Technology, 063210, Tangshan, China
| | - Yuwei Qiu
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
| | - Baijun Liu
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
| | - Lei Liang
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
| | - Zhongming Zhao
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China
| | - Fanglian Yao
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China.
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, 300350, Tianjin, China.
| | - Hong Zhang
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China.
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, 300350, Tianjin, China.
| | - Junjie Li
- School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China.
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, 300350, Tianjin, China.
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Li C, Dong W, Li L, Dou Z, Li Y, Wei L, Zhang Q, Fu Q, Wu K. A strain-reinforcing elastomer adhesive with superior adhesive strength and toughness. MATERIALS HORIZONS 2023; 10:4183-4191. [PMID: 37534697 DOI: 10.1039/d3mh00966a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Strong and ductile adhesives often undergo both interfacial and cohesive failure during the debonding process. Herein, we report a rare self-reinforcing polyurethane adhesive that shows the different phenomenon of only interfacial failure yet still exhibiting superior adhesive strength and toughness. It is synthesized by designing a hanging adhesive moiety, hierarchical H-bond moieties, and a crystallizable soft segment into one macromolecular polyurethane. The former hanging adhesive moiety allows the hot-melt adhesive to effectively associate with the target substrate, providing sufficient adhesion energy; the latter hierarchical H-bond moieties and a crystallizable soft segment cooperate to enable the adhesive to undergo large lap-shear deformations through sacrificing weak bonds and mechano-responsive strength through the fundamental mechanism of strain-induced crystallization. As a result, this polyurethane adhesive can keep itself intact during the debonding process while still withstanding a high lap-shear strength and dissipating tremendous stress energy. Its adhesive strength and work of debonding are as high as 11.37 MPa and 10.32 kN m-1, respectively, outperforming most reported tough adhesives. This self-reinforcing adhesive is regarded as a new member of the family of strong and ductile adhesives, which will provide innovative chemical and structural inspirations for future conveniently detachable yet high-performance adhesives.
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Affiliation(s)
- Chuanlong Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Wenbo Dong
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Longyu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Zhengli Dou
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Yuhan Li
- College of Chemistry and Green Catalysis Center, Zhengzhou Key Laboratory of Elastic Sealing Materials, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Liuhe Wei
- College of Chemistry and Green Catalysis Center, Zhengzhou Key Laboratory of Elastic Sealing Materials, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Qin Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Kai Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
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28
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Feng Y, Zhang Z, Tang W, Dai Y. Gel/hydrogel-based in situ biomaterial platforms for cancer postoperative treatment and recovery. EXPLORATION (BEIJING, CHINA) 2023; 3:20220173. [PMID: 37933278 PMCID: PMC10582614 DOI: 10.1002/exp.20220173] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/03/2023] [Indexed: 11/08/2023]
Abstract
Tumor surgical resection is the major strategy for cancer treatment. Meanwhile, perioperative treatment especially the postoperative adjuvant anticancer strategies play essential roles in satisfying therapeutic results and rapid recovery. Postoperative tumor recurrence, metastasis, bleeding, inter-tissue adhesion, infection, and delayed wound healing are vital risks that could lead to poor prognosis or even treatment failure. Therefore, methods targeting these postoperative complications are in desperate need. In situ biomaterial-based drug delivery platforms are promising candidates for postoperative treatment and recovery, resulting from their excellent properties including good biocompatibility, adaptive shape, limited systemic effect, designable function, and easy drug loading. In this review, we focus on introducing the gel/hydrogel-based in situ biomaterial platforms involving their properties, advantages, and synthesis procedures. Based on the loaded contents in the gel/hydrogel such as anticancer drugs, immunologic agents, cell components, and multifunctional nanoparticles, we further discuss the applications of the in situ platforms for postoperative tumor recurrence and metastasis inhibition. Finally, other functions aiming at fast postoperative recovery were introduced, including hemostasis, antibacterial infection, adhesion prevention, tissue repair, and wound healing. In conclusion, gel/hydrogel is a developing and promising platform for postoperative treatment, exhibiting gratifying therapeutic effects and inconspicuous toxicity to normal tissues, which deserves further research and exploration.
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Affiliation(s)
- Yuzhao Feng
- Cancer Centre and Institute of Translational MedicineFaculty of Health SciencesUniversity of MacauMacau SARChina
- MoE Frontiers Science Center for Precision OncologyUniversity of MacauMacau SARChina
| | - Zhan Zhang
- Cancer Centre and Institute of Translational MedicineFaculty of Health SciencesUniversity of MacauMacau SARChina
- MoE Frontiers Science Center for Precision OncologyUniversity of MacauMacau SARChina
| | - Wei Tang
- Departments of Pharmacy and Diagnostic RadiologyNanomedicine Translational Research ProgramFaculty of Science and Yong Loo Lin School of MedicineNational University of SingaporeSingapore
| | - Yunlu Dai
- Cancer Centre and Institute of Translational MedicineFaculty of Health SciencesUniversity of MacauMacau SARChina
- MoE Frontiers Science Center for Precision OncologyUniversity of MacauMacau SARChina
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Wan B, Liu N, Zhang Z, Fang X, Ding Y, Xiang H, He Y, Liu M, Lin X, Tang J, Li Y, Tang B, Zhou G. Water-dispersible and stable polydopamine coated cellulose nanocrystal-MXene composites for high transparent, adhesive and conductive hydrogels. Carbohydr Polym 2023; 314:120929. [PMID: 37173010 DOI: 10.1016/j.carbpol.2023.120929] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/13/2023] [Accepted: 04/16/2023] [Indexed: 05/15/2023]
Abstract
High conductive and transparent hydrogels with adhesion function are ideal candidates for soft electronic devices. However, it remains a challenge to design appropriate conductive nanofillers to endow hydrogels with all these characteristics. The 2D MXene sheets are promising conductive nanofillers for hydrogels due to excellent electricity and water-dispersibility. However, MXene is quite susceptible to oxidation. In this study, polydopamine (PDA) was employed to protect the MXene from oxidation and meanwhile endow hydrogels with adhesion. However, PDA coated MXene (PDA@MXene) were easily flocculated from dispersion. 1D cellulose nanocrystals (CNCs) were employed as steric stabilizers to prevent the agglomeration of MXene during the self-polymerization of dopamine. The obtained PDA coated CNC-MXene (PCM) sheets display outstanding water-dispersible and anti-oxidation stability and are promising conductive nanofillers for hydrogels. During the fabrication of polyacrylamide hydrogels, the PCM sheets were partially degraded into PCM nanoflakes with smaller size, leading to transparent PCM-PAM hydrogels. The PCM-PAM hydrogels can self-adhere to skin, and possess high transmittance of 75 % at 660 nm, superior electric conductivity of 4.7 S/m with MXene content as low as 0.1 % and excellent sensitivity. This study will facilitate the development of MXene based stable, water-dispersible conductive nanofillers and multi-functional hydrogels.
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Affiliation(s)
- Bolin Wan
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Nana Liu
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Zhen Zhang
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.
| | - Xiong Fang
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yugao Ding
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Haosheng Xiang
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yunqing He
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, China
| | - Mingxian Liu
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, China.
| | - Xiaoming Lin
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Juntao Tang
- Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yingzhan Li
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Biao Tang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.
| | - Guofu Zhou
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
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Wang L, Chen P, Pan Y, Wang Z, Xu J, Wu X, Yang Q, Long M, Liu S, Huang W, Ou C, Wu Y. Injectable photocurable Janus hydrogel delivering hiPSC cardiomyocyte-derived exosome for post-heart surgery adhesion reduction. SCIENCE ADVANCES 2023; 9:eadh1753. [PMID: 37540739 PMCID: PMC10403204 DOI: 10.1126/sciadv.adh1753] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 07/06/2023] [Indexed: 08/06/2023]
Abstract
Postsurgical pericardial adhesions pose increased risks of sequelae, prolonged reoperation time, and reduced visibility in the surgical field. Here, we introduce an injectable Janus hydrogel, which exhibits asymmetric adhesiveness properties after photocrosslinking, sustained delivering induced pluripotent stem cell-derived cardiomyocyte exosomes (iCM-EXOs) for post-heart surgery adhesion reduction. Our findings reveal that iCM-EXOs effectively attenuate oxidative stress in hydrogen peroxide-treated primary cardiomyocytes by inhibiting the activation of the transcription factor nuclear factor erythroid 2-related factor 2. Notably, in rat cardiac postsurgery models, the Janus hydrogels loaded with iCM-EXOs demonstrate dual functionality, acting as antioxidants and antipericardial adhesion agents. These hydrogels effectively protect iCM-EXOs from GATA6+ cavity macrophage clearance by inhibiting the recruitment of macrophages from the thoracic cavity. These results highlight the promising potential of iCM-EXO-laden Janus hydrogels for clinical safety and efficacy validation in trials involving heart surgery patients, with the ultimate goal of routine administration during open-heart surgeries.
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Affiliation(s)
- Ling Wang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Peier Chen
- Affiliated Dongguan Hospital, Southern Medical University (Dongguan People’s Hospital), Dongguan 523058, China
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yuxuan Pan
- Affiliated Dongguan Hospital, Southern Medical University (Dongguan People’s Hospital), Dongguan 523058, China
| | - Zihan Wang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jie Xu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Xiaoqi Wu
- Department of Urology and Andrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
| | - Qiao Yang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Meng Long
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Sitian Liu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wenhua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Caiwen Ou
- Affiliated Dongguan Hospital, Southern Medical University (Dongguan People’s Hospital), Dongguan 523058, China
| | - Yaobin Wu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
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Liao J, Li X, Fan Y. Prevention strategies of postoperative adhesion in soft tissues by applying biomaterials: Based on the mechanisms of occurrence and development of adhesions. Bioact Mater 2023; 26:387-412. [PMID: 36969107 PMCID: PMC10030827 DOI: 10.1016/j.bioactmat.2023.02.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/26/2023] [Accepted: 02/23/2023] [Indexed: 03/19/2023] Open
Abstract
Postoperative adhesion (POA) widely occurs in soft tissues and usually leads to chronic pain, dysfunction of adjacent organs and some acute complications, seriously reducing patients' quality of life and even being life-threatening. Except for adhesiolysis, there are few effective methods to release existing adhesion. However, it requires a second operation and inpatient care and usually triggers recurrent adhesion in a great incidence. Hence, preventing POA formation has been regarded as the most effective clinical strategy. Biomaterials have attracted great attention in preventing POA because they can act as both barriers and drug carriers. Nevertheless, even though much reported research has been demonstrated their efficacy on POA inhibition to a certain extent, thoroughly preventing POA formation is still challenging. Meanwhile, most biomaterials for POA prevention were designed based on limited experiences, not a solid theoretical basis, showing blindness. Hence, we aimed to provide guidance for designing anti-adhesion materials applied in different soft tissues based on the mechanisms of POA occurrence and development. We first classified the postoperative adhesions into four categories according to the different components of diverse adhesion tissues, and named them as "membranous adhesion", "vascular adhesion", "adhesive adhesion" and "scarred adhesion", respectively. Then, the process of the occurrence and development of POA were analyzed, and the main influencing factors in different stages were clarified. Further, we proposed seven strategies for POA prevention by using biomaterials according to these influencing factors. Meanwhile, the relevant practices were summarized according to the corresponding strategies and the future perspectives were analyzed.
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Erdi M, Sandler A, Kofinas P. Polymer nanomaterials for use as adjuvant surgical tools. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1889. [PMID: 37044114 PMCID: PMC10524211 DOI: 10.1002/wnan.1889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 03/03/2023] [Accepted: 03/17/2023] [Indexed: 04/14/2023]
Abstract
Materials employed in the treatment of conditions encountered in surgical and clinical practice frequently face barriers in translation to application. Shortcomings can be generalized through their reduced mechanical stability, difficulty in handling, and inability to conform or adhere to complex tissue surfaces. To overcome an amalgam of challenges, research has sought the utilization of polymer-derived nanomaterials deposited in various fashions and formulations to improve the application and outcomes of surgical and clinical interventions. Clinically prevalent applications include topical wound dressings, tissue adhesives, surgical sealants, hemostats, and adhesion barriers, all of which have displayed the potential to act as superior alternatives to current materials used in surgical procedures. In this review, emphasis will be placed not only on applications, but also on various design strategies employed in fabrication. This review is designed to provide a broad and thought-provoking understanding of nanomaterials as adjuvant tools for the assisted treatment of pathologies prevalent in surgery. This article is categorized under: Implantable Materials and Surgical Technologies > Nanomaterials and Implants Implantable Materials and Surgical Technologies > Nanoscale Tools and Techniques in Surgery.
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Affiliation(s)
- Metecan Erdi
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland, USA
| | - Anthony Sandler
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Joseph E. Robert Jr. Center for Surgical Care, Children's National Medical Center, Washington, DC, USA
| | - Peter Kofinas
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland, USA
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Qiao J, Jiang Y, Ren Z, Tang K. Protocatechualdehyde-ferric iron tricomplex embedded gelatin hydrogel with adhesive, antioxidant and photothermal antibacterial capacities for infected wound healing promotion. Int J Biol Macromol 2023:125029. [PMID: 37244333 DOI: 10.1016/j.ijbiomac.2023.125029] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/17/2023] [Accepted: 05/20/2023] [Indexed: 05/29/2023]
Abstract
Because of the indiscriminate use of antibiotics and the increasing threat of drug-resist bacteria, there is an urgent need to develop novel antibacterial strategies to combat infected wounds. In this work, stable tricomplex molecules (PA@Fe) assembled by protocatechualdehyde (PA) and ferric iron (Fe) were successfully synthesized and then embedded in the gelatin matrix to obtain a series of Gel-PA@Fe hydrogels. The embedded PA@Fe served as a crosslinker to improve the mechanical, adhesive and antioxidant properties of hydrogels through coordination bonds (catechol-Fe) and dynamic Schiff base bonds, meanwhile acting as a photothermal agent to convert near-infrared (NIR) light into heat to kill bacteria effectively. Importantly, in vivo evaluation through an infected full-thickness skin wound mice model revealed that Gel-PA@Fe hydrogel developed collagen deposition, and accelerated reconstruction of wound closure, indicating great potential of Gel-PA@Fe hydrogel in promoting the healing process of infected full-thickness wounds.
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Affiliation(s)
- Jialu Qiao
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yongchao Jiang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhitao Ren
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Keyong Tang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
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Li Y, Wang X, Hu B, Sun Q, Wan M, Carr A, Liu S, Cao X. Neutralization of excessive levels of active TGF-β1 reduces MSC recruitment and differentiation to mitigate peritendinous adhesion. Bone Res 2023; 11:24. [PMID: 37156778 PMCID: PMC10167238 DOI: 10.1038/s41413-023-00252-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 01/31/2023] [Accepted: 02/10/2023] [Indexed: 05/10/2023] Open
Abstract
Peritendinous adhesion formation (PAF) can substantially limit the range of motion of digits. However, the origin of myofibroblasts in PAF tissues is still unclear. In this study, we found that the concentration of active TGF-β1 and the numbers of macrophages, mesenchymal stromal cells (MSCs), and myofibroblasts in human and mouse adhesion tissues were increased. Furthermore, knockout of TGF-β1 in macrophages or TGF-β1R2 in MSCs inhibited PAF by reducing MSC and myofibroblast infiltration and collagen I and III deposition, respectively. Moreover, we found that MSCs differentiated into myofibroblasts to form adhesion tissues. Systemic injection of the TGF-β-neutralizing antibody 1D11 during the granulation formation stage of PAF significantly reduced the infiltration of MSCs and myofibroblasts and, subsequently, PAF. These results suggest that macrophage-derived TGF-β1 recruits MSCs to form myofibroblasts in peritendinous adhesions. An improved understanding of PAF mechanisms could help identify a potential therapeutic strategy.
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Affiliation(s)
- YuSheng Li
- Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Xiao Wang
- Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Bo Hu
- Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Qi Sun
- Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Mei Wan
- Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Andrew Carr
- Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Windmill Road, Oxford, OX3 7LD, UK
| | - Shen Liu
- Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
| | - Xu Cao
- Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
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Hu S, Yang Z, Zhai Q, Li D, Zhu X, He Q, Li L, Cannon RD, Wang H, Tang H, Ji P, Chen T. An All-in-One "4A Hydrogel": through First-Aid Hemostatic, Antibacterial, Antioxidant, and Angiogenic to Promoting Infected Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207437. [PMID: 36978243 DOI: 10.1002/smll.202207437] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Currently used wound dressings are ineffective. Hence, there is a need to develop introduce a high-performance medicament with multiple functions including rapid hemostasis and excellent antibacterial activity to meet the growing worldwide demand for wound healing products. Here, inspired by the strong adhesion of mussels and the enzyme-mimicking activity of nanometallic biomaterials, the authors developed an injectable hydrogel to overcome multiple limitations of current wound dressings. The hydrogel is synthesized via esterification reaction between poly(vinyl alcohol) (PVA) and 3,4-dihydroxyphenylalanine (DOPA), followed by catechol-metal coordination between Cu2+ and the catechol groups of DOPA to form a PVA-DOPA-Cu (PDPC) hydrogel. The PDPC hydrogel possesses excellent tissue adhesive, antioxidative, photothermal, antibacterial, and hemostatic properties. The hydrogel rapidly and efficiently stopped bleeding under different traumatic conditions, including otherwise-lethal liver injury, high-pressure carotid artery rupture, and even fatal cardiac penetration injuries in animal models. Furthermore, it is demonstrated that the PDPC hydrogel affected high-performance wound repair and tissue regeneration by accelerating re-epithelialization, promoting collagen deposition, regulating inflammation, and contributing to vascularization. The results show that PDPC hydrogel is a promising candidate for rapid hemorrhage control and efficient wound healing in multiple clinical applications.
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Affiliation(s)
- Shanshan Hu
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Zixin Yang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Qiming Zhai
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Dize Li
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Xingyu Zhu
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Qingqing He
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Lingjie Li
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Richard D Cannon
- Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand
| | - Huanan Wang
- Key State Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, Dalian, 116023, P. R. China
| | - Han Tang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Ping Ji
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Tao Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
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Yan J, Ou BS, Saouaf OM, Meany EL, Eckman N, Appel EA. A regimen compression strategy for commercial vaccines leveraging an injectable hydrogel depot technology for sustained vaccine exposure. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.23.534005. [PMID: 36993717 PMCID: PMC10055424 DOI: 10.1101/2023.03.23.534005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Equitable global access to vaccines requires we overcome challenges associated with complex immunization schedules and their associated economic burdens that hinder delivery in under resourced environments. The rabies vaccine, for example, requires multiple immunizations for effective protection and each dose is cost prohibitive, and therefore inaccessibility disproportionately impacts low- and middle-income countries. In this work we developed an injectable hydrogel depot technology for sustained delivery of commercial inactivated rabies virus vaccines. In a mouse model, we showed that a single immunization of a hydrogel-based rabies vaccine elicited comparable antibody titers to a standard prime-boost bolus regimen of a commercial rabies vaccine, despite these hydrogel vaccines comprising only half of the total dose delivered in the bolus control. Moreover, these hydrogel-based vaccines elicited similar antigen-specific T-cell responses and neutralizing antibody responses compared to the bolus vaccine. Notably, we demonstrated that while addition of a potent clinical TLR4 agonist adjuvant to the gels slightly improved binding antibody responses, inclusion of this adjuvant to the inactivated virion vaccine was detrimental to neutralizing responses. Taken together, these results suggest that these hydrogels can enable an effective regimen compression and dosesparing strategy for improving global access to vaccines.
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37
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Kasse CM, Yu AC, Powell AE, Roth GA, Liong CS, Jons CK, Buahin A, Maikawa CL, Zhou X, Youssef S, Glanville JE, Appel EA. Subcutaneous delivery of an antibody against SARS-CoV-2 from a supramolecular hydrogel depot. Biomater Sci 2023; 11:2065-2079. [PMID: 36723072 PMCID: PMC10012178 DOI: 10.1039/d2bm00819j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Prolonged maintenance of therapeutically-relevant levels of broadly neutralizing antibodies (bnAbs) is necessary to enable passive immunization against infectious disease. Unfortunately, protection only lasts for as long as these bnAbs remain present at a sufficiently high concentration in the body. Poor pharmacokinetics and burdensome administration are two challenges that need to be addressed in order to make pre- and post-exposure prophylaxis with bnAbs feasible and effective. In this work, we develop a supramolecular hydrogel as an injectable, subcutaneous depot to encapsulate and deliver antibody drug cargo. This polymer-nanoparticle (PNP) hydrogel exhibits shear-thinning and self-healing properties that are required for an injectable drug delivery vehicle. In vitro drug release assays and diffusion measurements indicate that the PNP hydrogels prevent burst release and slow the release of encapsulated antibodies. Delivery of bnAbs against SARS-CoV-2 from PNP hydrogels is compared to standard routes of administration in a preclinical mouse model. We develop a multi-compartment model to understand the ability of these subcutaneous depot materials to modulate the pharmacokinetics of released antibodies; the model is extrapolated to explore the requirements needed for novel materials to successfully deliver relevant antibody therapeutics with different pharmacokinetic characteristics.
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Affiliation(s)
- Catherine M Kasse
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA.
| | - Anthony C Yu
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA.
| | - Abigail E Powell
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Gillie A Roth
- Department of Bioengineering, Stanford University, Stanford, CA, 94305 USA
| | - Celine S Liong
- Department of Bioengineering, Stanford University, Stanford, CA, 94305 USA
| | - Carolyn K Jons
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA.
| | - Awua Buahin
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA.
| | - Caitlin L Maikawa
- Department of Bioengineering, Stanford University, Stanford, CA, 94305 USA
| | - Xueting Zhou
- Department of Bioengineering, Stanford University, Stanford, CA, 94305 USA
| | - Sawsan Youssef
- Centivax Inc., 329 Oyster Point Drive, 3rd Floor South San Francisco, CA 94080, USA
| | - Jacob E Glanville
- Centivax Inc., 329 Oyster Point Drive, 3rd Floor South San Francisco, CA 94080, USA
| | - Eric A Appel
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA. .,Stanford ChEM-H, Stanford University, Stanford, CA 94305, USA.,Department of Bioengineering, Stanford University, Stanford, CA, 94305 USA.,Institute for Immunity, Transplantation, & Infection, Stanford University School of Medicine, Stanford, CA 94305, USA.,Department of Pediatrics - Endocrinology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA
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38
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Erdi M, Saruwatari MS, Rozyyev S, Acha C, Ayyub OB, Sandler AD, Kofinas P. Controlled Release of a Therapeutic Peptide in Sprayable Surgical Sealant for Prevention of Postoperative Abdominal Adhesions. ACS APPLIED MATERIALS & INTERFACES 2023:10.1021/acsami.3c00283. [PMID: 36884271 PMCID: PMC10485170 DOI: 10.1021/acsami.3c00283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Formation of asymmetric, rigid scar tissue known as surgical adhesions is caused by traumatic disruption of mesothelial-lined surfaces in surgery. A widely adopted prophylactic barrier material (Seprafilm) for the treatment of intra-abdominal adhesions is applied operatively as a pre-dried hydrogel sheet but has reduced translational efficacy due its brittle mechanical properties. Topically administered peritoneal dialysate (Icodextrin) and anti-inflammatory drugs have failed to prevent adhesions due to an uncontrolled release profile. Hence, inclusion of a targeted therapeutic into a solid barrier host matrix with improved mechanical properties could provide dual utility in adhesion prevention and as a surgical sealant. Spray deposition of poly(lactide-co-caprolactone) (PLCL) polymer fibers through solution blow spinning has yielded a tissue-adherent barrier material with previously reported adhesion prevention efficacy due to a surface erosion mechanism that inhibits deposition of inflamed tissue. However, such an approach uniquely presents an avenue for controlled therapeutic release through mechanisms of diffusion and degradation. Such a rate is kinetically tuned via facile blending of "high" molecular weight (HMW) and "low" molecular weight (LMW) PLCL with slow and fast biodegradation rates, respectively. Here, we explore viscoelastic blends of HMW PLCL (70% w/v) and LMW PLCL (30% w/v) as a host matrix for anti-inflammatory drug delivery. In this work, COG133, an apolipoprotein E (ApoE) mimetic peptide with potent anti-inflammatory properties was selected and tested. In vitro studies with PLCL blends presented low (∼30%) and high (∼80%) percent release profiles over a 14-day period based on the nominal molecular weight of the HMW PLCL component. Two independent mouse models of cecal ligation and cecal anastomosis significantly reduced adhesion severity versus Seprafilm, COG133 liquid suspension, and no treatment control. The synergy of physical and chemical methods in a barrier material with proven preclinical studies highlights the value of COG133-loaded PLCL fiber mats in effectively dampening the formation of severe abdominal adhesions.
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Affiliation(s)
- Metecan Erdi
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Michele S Saruwatari
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Joseph E. Robert Jr. Center for Surgical Care, Children's National Medical Center, Washington, District of Columbia 20010, United States
| | - Selim Rozyyev
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Joseph E. Robert Jr. Center for Surgical Care, Children's National Medical Center, Washington, District of Columbia 20010, United States
| | - Christopher Acha
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Omar B Ayyub
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Anthony D Sandler
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Joseph E. Robert Jr. Center for Surgical Care, Children's National Medical Center, Washington, District of Columbia 20010, United States
| | - Peter Kofinas
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
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39
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Liu B, Kong Y, Alimi OA, Kuss MA, Tu H, Hu W, Rafay A, Vikas K, Shi W, Lerner M, Berry WL, Li Y, Carlson MA, Duan B. Multifunctional Microgel-Based Cream Hydrogels for Postoperative Abdominal Adhesion Prevention. ACS NANO 2023; 17:3847-3864. [PMID: 36779870 PMCID: PMC10820954 DOI: 10.1021/acsnano.2c12104] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Postoperative abdominal adhesions are a common problem after surgery and can produce serious complications. Current antiadhesive strategies focus mostly on physical barriers and are unsatisfactory and inefficient. In this study, we designed and synthesized advanced injectable cream-like hydrogels with multiple functionalities, including rapid gelation, self-healing, antioxidation, anti-inflammation, and anti-cell adhesion. The multifunctional hydrogels were facilely formed by the conjugation reaction of epigallocatechin-3-gallate (EGCG) and hyaluronic acid (HA)-based microgels and poly(vinyl alcohol) (PVA) based on the dynamic boronic ester bond. The physicochemical properties of the hydrogels including antioxidative and anti-inflammatory activities were systematically characterized. A mouse cecum-abdominal wall adhesion model was implemented to investigate the efficacy of our microgel-based hydrogels in preventing postoperative abdominal adhesions. The hydrogels, with a high molecular weight HA, significantly decreased the inflammation, oxidative stress, and fibrosis and reduced the abdominal adhesion formation, compared to the commercial Seprafilm group or Injury-only group. Label-free quantitative proteomics analysis demonstrated that S100A8 and S100A9 expressions were associated with adhesion formation; the microgel-containing hydrogels inhibited these expressions. The microgel-containing hydrogels with multifunctionality decreased the formation of postoperative intra-abdominal adhesions in a murine model, demonstrating promise for clinical applications.
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Affiliation(s)
- Bo Liu
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Yunfan Kong
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Olawale A. Alimi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Mitchell A. Kuss
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Huiyin Tu
- Department of Emergency Medicine, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Wenfeng Hu
- Department of Emergency Medicine, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Abu Rafay
- Mass Spectrometry & Proteomics Core, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kumar Vikas
- Mass Spectrometry & Proteomics Core, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Wen Shi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Megan Lerner
- Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - William L. Berry
- Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Yulong Li
- Department of Emergency Medicine, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Mark A. Carlson
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Department of Surgery-General Surgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Department of Surgery-General Surgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
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40
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Dâ Aquino AI, Maikawa CL, Nguyen LT, Lu K, Hall IA, Prossnitz AN, Chang E, Baker SW, Kasse CM, Jons CK, Yan J, Hovgaard L, Steensgaard DB, Andersen HB, Simonsen L, Appel EA. Sustained Delivery of GLP-1 Receptor Agonists from Injectable Biomimetic Hydrogels Improves Treatment of Diabetes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.28.526057. [PMID: 36778223 PMCID: PMC9915491 DOI: 10.1101/2023.01.28.526057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Glucagon-like peptide-1 (GLP-1) is an incretin hormone and neurotransmitter secreted from intestinal L-cells in response to nutrients to stimulate insulin and block glucagon secretion in a glucose-dependent manner. GLP-1 in itself is rapidly degraded, but long-acting GLP-1 receptor agonists (GLP-1 RAs) have become central in the treatment of T2D because of the beneficial effects extending also beyond glucose control. Currently, these therapeutics must be injected either daily or weekly or taken daily orally, leaving room for technological innovations that enable less frequent administrations, which will reduce patient burden and increase patient compliance. An ideal GLP-1 RA drug product would provide continuous therapy for upwards of four months from a single administration to match the cadence with which T2D patients typically visit their physician. In this work, we leveraged an injectable hydrogel depot technology to develop a long-acting GLP-1 RA drug product. By modulating the hydrogel properties to tune GLP-1 RA retention within the hydrogel depot, we engineered formulations capable of months-long GLP-1 RA delivery. Using a rat model of T2D, we confirmed that a single injection of hydrogel-based therapies exhibits sustained exposure of GLP-1 RA over 42 days, corresponding to a once-every four month therapy in humans. Moreover, these hydrogel therapies maintained optimal management of blood glucose and weight comparable to daily injections of a leading GLP-1 RA drug molecule. The pharmacokinetics and pharmacodynamics of these hydrogel-based long-acting GLP-1 RA treatments are promising for development of novel therapies reducing treatment burden for more effective management of T2D.
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41
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Lu Y, Huang X, Yuting Luo, Zhu R, Zheng M, Yang J, Bai S. Silk Fibroin-Based Tough Hydrogels with Strong Underwater Adhesion for Fast Hemostasis and Wound Sealing. Biomacromolecules 2023; 24:319-331. [PMID: 36503250 DOI: 10.1021/acs.biomac.2c01157] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Rapid and strong adhesion of hydrogel adhesives is required for instant wound closure and hemostasis. However, in situ hydrogel formation and sufficient adhesion at target tissue sites in biological environments are severely compromised by the presence of blood and body fluids. In this work, an underwater adhesive hydrogel (named SHCa) is fabricated with rapid in situ gelation, enhanced mechanical toughness, and robust underwater adhesion. The SHCa can undergo rapid UV irradiation-induced gelation under water within 5 s and adhere firmly to underwater surfaces for 6 months. The synergistic effects of crystalline β-sheet structures and dynamic energy-dissipating mechanisms enhance the mechanical toughness and cohesion, supporting the balance between adhesion and cohesion in wet environments. Importantly, the SHCa can achieve rapid in situ gelation and robust underwater adhesion at various tissue surfaces in highly dynamic fluid environments, substantially outperforming the commercially available tissue adhesives. The lap shear adhesion strength and wound closure strength of SHCa on blood-covered substrates are 7.24 and 12.68 times higher than those of cyanoacrylate glue, respectively. Its fast hemostasis and wound sealing performance are further demonstrated in in vivo animal models. The proposed hydrogel with strong underwater adhesion provides an effective tool for fast wound closure and hemostasis.
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Affiliation(s)
- Yajie Lu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Xiaowei Huang
- Industrial Research Institute of Nonwovens and Technical Textiles, College of Textiles and Clothing, Qingdao University, Qingdao 266071, People's Republic of China
| | - Yuting Luo
- College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Rui Zhu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Min Zheng
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Jianmin Yang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Shumeng Bai
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
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42
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Chen X, Zhu L, Wang X, Xiao J. Insight into Heart-Tailored Architectures of Hydrogel to Restore Cardiac Functions after Myocardial Infarction. Mol Pharm 2023; 20:57-81. [PMID: 36413809 DOI: 10.1021/acs.molpharmaceut.2c00650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
With permanent heart muscle injury or death, myocardial infarction (MI) is complicated by inflammatory, proliferation and remodeling phases from both the early ischemic period and subsequent infarct expansion. Though in situ re-establishment of blood flow to the infarct zone and delays of the ventricular remodeling process are current treatment options of MI, they fail to address massive loss of viable cardiomyocytes while transplanting stem cells to regenerate heart is hindered by their poor retention in the infarct bed. Equipped with heart-specific mimicry and extracellular matrix (ECM)-like functionality on the network structure, hydrogels leveraging tissue-matching biomechanics and biocompatibility can mechanically constrain the infarct and act as localized transport of bioactive ingredients to refresh the dysfunctional heart under the constant cyclic stress. Given diverse characteristics of hydrogel including conductivity, anisotropy, adhesiveness, biodegradability, self-healing and mechanical properties driving local cardiac repair, we aim to investigate and conclude the dynamic balance between ordered architectures of hydrogels and the post-MI pathological milieu. Additionally, our review summarizes advantages of heart-tailored architectures of hydrogels in cardiac repair following MI. Finally, we propose challenges and prospects in clinical translation of hydrogels to draw theoretical guidance on cardiac repair and regeneration after MI.
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Affiliation(s)
- Xuerui Chen
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong 226011, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Liyun Zhu
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong 226011, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Xu Wang
- Hangzhou Medical College, Binjiang Higher Education Park, Binwen Road 481, Hangzhou 310053, China
| | - Junjie Xiao
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong 226011, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
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43
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Wei C, Shi W, Zhao C, Yang S, Zheng J, Zhong J, Zhao T, Kong S, Gong X, Liu M. Superwetting Injectable Hydrogel with Ultrastrong and Fast Tissue Adhesion for Minimally Invasive Hemostasis. Adv Healthc Mater 2023; 12:e2201799. [PMID: 36333905 DOI: 10.1002/adhm.202201799] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/23/2022] [Indexed: 11/08/2022]
Abstract
Injectable hydrogels have recently emerged as alternatives to sutures for various clinical indications. However, existing injectable hydrogels are unsuitable for hemostasis in minimally invasive surgery because of their weak interfacial adhesion and complex/prolonged processing. Herein, a superwetting injectable hydrogel composed of oppositely charged polysaccharides is developed. The spontaneous spreading of the injectable hydrogel on the surfaces achieves complete wetting and forms tight interfacial contact by absorbing the interfacial water. The superwetting ability and subsequent covalent crosslinking perform fast and ultrastrong wet adhesion (140 kPa) on the tissue surface. Ex vivo porcine and in vivo rat models show that the hydrogel successfully leads to the aggregation of erythrocytes for targeted hemostasis (in less than 12 s) without requiring external adjuncts, and no postsurgical adhesions to the peripheral tissues. This further demonstrates that hydrogel can act as an effective hemostasis agent in laparoscopic surgery in a rabbit model. Overall, the strong wet adhesion, antibacterial properties, and easy operability make this injectable hydrogel a promising candidate for hemostasis applications, as it can successfully combine clinical efficacy and transformation opportunities for minimally invasive surgery.
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Affiliation(s)
- Congying Wei
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, China
| | - Weili Shi
- Department of Sports Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Chuangqi Zhao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, China
| | - Shuai Yang
- Department of Sports Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Jiajia Zheng
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - JinPan Zhong
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, China
| | - Tianyi Zhao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, China
| | - Simin Kong
- Department of Sports Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Xi Gong
- Department of Sports Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Mingjie Liu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, China
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44
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Yang W, Xuan C, Liu X, Zhang Q, Wu K, Bian L, Shi X. A sandwiched patch toward leakage-free and anti-postoperative tissue adhesion sealing of intestinal injuries. Bioact Mater 2022; 24:112-123. [PMID: 36582344 PMCID: PMC9760658 DOI: 10.1016/j.bioactmat.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/15/2022] Open
Abstract
Ideal repair of intestinal injury requires a combination of leakage-free sealing and postoperative antiadhesion. However, neither conventional hand-sewn closures nor existing bioglues/patches can achieve such a combination. To this end, we develop a sandwiched patch composed of an inner adhesive and an outer antiadhesive layer that are topologically linked together through a reinforced interlayer. The inner adhesive layer tightly and instantly adheres to the wound sites via -NHS chemistry; the outer antiadhesive layer can inhibit cell and protein fouling based on the zwitterion structure; and the interlayer enhances the bulk resilience of the patch under excessive deformation. This complementary trilayer patch (TLP) possesses a unique combination of instant wet adhesion, high mechanical strength, and biological inertness. Both rat and pig models demonstrate that the sandwiched TLP can effectively seal intestinal injuries and inhibit undesired postoperative tissue adhesion. The study provides valuable insight into the design of multifunctional bioadhesives to enhance the treatment efficacy of intestinal injuries.
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Affiliation(s)
- Wei Yang
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Chengkai Xuan
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China,Guangzhou Soonheal Medical Technology. Co, Ltd, Guangzhou, 510230, China
| | - Xuemin Liu
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Qiang Zhang
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Kai Wu
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, China
| | - Liming Bian
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China,School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, China,Corresponding author. National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China.
| | - Xuetao Shi
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China,Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China.
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45
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Liu Z, Lin W, Liu Y. Macrocyclic Supramolecular Assemblies Based on Hyaluronic Acid and Their Biological Applications. Acc Chem Res 2022; 55:3417-3429. [PMID: 36380600 DOI: 10.1021/acs.accounts.2c00462] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hyaluronic acid (HA), which contains multiple carboxyl, hydroxyl, and acetylamino groups and is an agent that targets tumors, has drawn great attention in supramolecular diagnosis and treatment research. It can not only assemble directly with macrocyclic host-guest complexes through hydrogen bonding and electrostatic interactions but also can be modified with macrocyclic compounds or functional guest molecules by an amidation reaction and used for further assembly. Macrocycles play a main role in the construction of supramolecular drug carriers, targeted imaging agents, and hydrogels, such as cyclodextrins and cucurbit[n]urils, which can encapsulate photosensitizers, drugs, or other functional guest molecules via host-guest interactions. Therefore, the formed supramolecular assemblies can respond to various stimuli, such as enzymes, light, electricity, and magnetism for controlled drug delivery, enhance the luminescence intensity of the assembly, and improve drug loading capacity. In addition, the nanosupramolecular assembly formed with HA can also improve the biocompatibility of drugs, reduce drug toxicity and side effects, and enhance cell permeability; thus, the assembly has extensive application value in biomedical research. This Account mainly focuses on macrocyclic supramolecular assemblies based on HA, especially their biological applications and progress in the field, and these assemblies include (i) guest-modified HA, such as pyridinium-, adamantane-, peptide-, and other functional-group-modified HA, along with their cyclodextrin and cucurbit[n]uril assemblies; (ii) macrocycle-modified HA, such as HA modified with cyclodextrins and cucurbit[n]uril derivatives and their assembly with various guests; (iii) direct assembly between unmodified HA and cyclodextrin- or cucurbit[n]uril-based host-guest complexes. Particularly, we discussed the important role of macrocyclic host-guest complexes in HA-based supramolecular assembly, and the roles included improving the water solubility and efficacy of hydrophobic drugs, enhancing the luminescent intensity of assemblies, inducing room temperature phosphorescence and providing energy transfer systems, constructing multi-stimulus-responsive supramolecular assemblies, and in situ formation of hydrogels. Additionally, we believe that obtaining in-depth knowledge of these HA-based macrocyclic supramolecular assemblies and their biological applications encompasses many challenges regarding drug carriers, targeted imaging agents, wound healing, and biomedical soft materials and would certainly contribute to the rapid development of supramolecular diagnosis and treatment.
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Affiliation(s)
- Zhixue Liu
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Wenjing Lin
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yu Liu
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300000, China
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46
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An KR, Christakis N, Jegatheeswaran A, Cusimano RJ, Rao V, Badiwala M, Yau TM. Outcomes of expanded polytetrafluoroethylene pericardial membrane implantation in left ventricular assist device explantation and heart transplantation. J Card Surg 2022; 37:4316-4323. [PMID: 36135788 DOI: 10.1111/jocs.16956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/13/2022] [Accepted: 08/24/2022] [Indexed: 01/06/2023]
Abstract
OBJECTIVES Redo sternotomy and explantation of left ventricular assist devices (LVAD) for heart transplantation (HT) involve prolonged dissection, potential injury to mediastinal structures and/or bleeding. Our study compared a complete expanded polytetrafluoroethylene (ePTFE) wrap versus minimal or no ePTFE during LVAD implantation, on outcomes of subsequent HT. METHODS Between July 2005 and July 2018, 84 patients underwent a LVAD implant and later underwent HT. Thirty patients received a complete ePTFE wrap during LVAD implantation (Group 1), and 54 patients received either a sheet of ePTFE placed in the anterior mediastinum or no ePTFE (Group 2). RESULTS Baseline characteristics were similar between Groups 1 and 2. Surgeons reported subjective improvements in speed, predictability, and safety of dissection with complete ePTFE compared with minimal or no ePTFE. Time from incision to initiation of cardiopulmonary bypass (CPB) were similar between groups (97 ± 38 vs. 89 ± 29 min, p = .3). Injury to mediastinal structures during the dissection was similar between groups (10% vs. 11%, p > .9). While surgeons reported less intraoperative bleeding in Group 1 (43% vs. 61%), this trend did not reach significance (p = .1). In-hospital mortality, intensive care unit length of stay and hospital length of stay were similar between both groups. CONCLUSIONS In patients undergoing LVAD explant-HT, there was a trend toward reduced surgeon reported intraoperative bleeding with ePTFE placement. Despite qualitatively reported greater ease and speed of mediastinal dissection with ePTFE membrane placement, time to initiation of CPB did not differ, likely because surgeons remained cautious, allowing extra time for unanticipated difficulties.
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Affiliation(s)
- Kevin R An
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto, Ontario, Canada.,Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Nicole Christakis
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto, Ontario, Canada.,Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Anusha Jegatheeswaran
- Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada.,Division of Cardiac Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Robert J Cusimano
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto, Ontario, Canada.,Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Vivek Rao
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto, Ontario, Canada.,Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Mitesh Badiwala
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto, Ontario, Canada.,Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Terrence M Yau
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto, Ontario, Canada.,Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada
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47
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Kong B, Liu R, Cheng Y, Shang Y, Zhang D, Gu H, Zhao Y, Xu W. Structural Color Medical Patch with Surface Dual-Properties of Wet Bioadhesion and Slipperiness. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203096. [PMID: 36089655 PMCID: PMC9631070 DOI: 10.1002/advs.202203096] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/23/2022] [Indexed: 05/25/2023]
Abstract
Developing a self-reporting bioadhesive patch that has strong adhesion to the wet tissues and meanwhile can avoid adhering to the adjacent tissues is a current research difficulty and challenge. In this paper, inspired by the wet adhesion of spider web, slippery surface of Nepenthes, and structural color phenomena of chameleons, a novel structural color medical patch with surface dual-properties of wet bioadhesion and slipperiness for internal tissue repair based on inverse opal scaffold is presented. The adhesive surface made by poly(acrylic acid)-polyethylene glycol-N-hydroxysuccinimide ester and gelatin hydrogel can attain tough adhesion to internal wet tissues by absorbing tissue interfacial water and the covalent cross-linking between the hydrogel and tissue. Besides, the slippery surface made by liquid paraffin infused inverse opal scaffold can avoid adhesion to the adjacent tissues. It is demonstrated that the designed patch can adhere tightly to the defect tissue and improve the tissue repair without adjacent adhesion when applied in a rat model with full-thickness perforation of the stomach wall. In addition, the responsive structural color can supply a color-sensing monitoring to evaluate the adhesive and repair process. These features impart the bioinspired patch with great scientific significance and broad clinical application prospects.
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Affiliation(s)
- Bin Kong
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Rui Liu
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Yi Cheng
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Yixuan Shang
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Dagan Zhang
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Hongcheng Gu
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Yuanjin Zhao
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health)Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhouZhejiang325001P. R. China
| | - Wei Xu
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
- Department of OrthopedicsTongren HospitalShanghai Jiao Tong University School of MedicineShanghai200336P. R. China
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48
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Correa S, Meany EL, Gale EC, Klich JH, Saouaf OM, Mayer AT, Xiao Z, Liong CS, Brown RA, Maikawa CL, Grosskopf AK, Mann JL, Idoyaga J, Appel EA. Injectable Nanoparticle-Based Hydrogels Enable the Safe and Effective Deployment of Immunostimulatory CD40 Agonist Antibodies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103677. [PMID: 35975424 PMCID: PMC9534946 DOI: 10.1002/advs.202103677] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 06/27/2022] [Indexed: 05/31/2023]
Abstract
When properly deployed, the immune system can eliminate deadly pathogens, eradicate metastatic cancers, and provide long-lasting protection from diverse diseases. Unfortunately, realizing these remarkable capabilities is inherently risky as disruption to immune homeostasis can elicit dangerous complications or autoimmune disorders. While current research is continuously expanding the arsenal of potent immunotherapeutics, there is a technological gap when it comes to controlling when, where, and how long these drugs act on the body. Here, this study explored the ability of a slow-releasing injectable hydrogel depot to reduce dose-limiting toxicities of immunostimulatory CD40 agonist (CD40a) while maintaining its potent anticancer efficacy. A previously described polymer-nanoparticle (PNP) hydrogel system is leveraged that exhibits shear-thinning and yield-stress properties that are hypothesized to improve locoregional delivery of CD40a immunotherapy. Using positron emission tomography, it is demonstrated that prolonged hydrogel-based delivery redistributes CD40a exposure to the tumor and the tumor draining lymph node (TdLN), thereby reducing weight loss, hepatotoxicity, and cytokine storm associated with standard treatment. Moreover, CD40a-loaded hydrogels mediate improved local cytokine induction in the TdLN and improve treatment efficacy in the B16F10 melanoma model. PNP hydrogels, therefore, represent a facile, drug-agnostic method to ameliorate immune-related adverse effects and explore locoregional delivery of immunostimulatory drugs.
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Affiliation(s)
- Santiago Correa
- Department of Materials Science and EngineeringStanford UniversityStanfordCA94305USA
| | - Emily L. Meany
- Department of BioengineeringStanford UniversityStanfordCA94305USA
| | - Emily C. Gale
- Department of BiochemistryStanford University School of MedicineStanfordCA94305USA
| | - John H. Klich
- Department of BioengineeringStanford UniversityStanfordCA94305USA
| | - Olivia M. Saouaf
- Department of Materials Science and EngineeringStanford UniversityStanfordCA94305USA
| | - Aaron T. Mayer
- Department of BioengineeringStanford UniversityStanfordCA94305USA
| | - Zunyu Xiao
- Department of BioengineeringStanford UniversityStanfordCA94305USA
| | - Celine S. Liong
- Department of BioengineeringStanford UniversityStanfordCA94305USA
| | - Ryanne A. Brown
- Department of PathologyStanford University School of MedicineStanfordCA94305USA
| | | | | | - Joseph L. Mann
- Department of Materials Science and EngineeringStanford UniversityStanfordCA94305USA
| | - Juliana Idoyaga
- Department of Microbiology & ImmunologyStanford University School of MedicineStanfordCA94305USA
- Stanford ChEM‐H InstituteStanford University School of MedicineStanfordCA94305USA
- Stanford Cancer InstituteStanford University School of MedicineStanfordCA94305USA
| | - Eric A. Appel
- Department of Materials Science and EngineeringStanford UniversityStanfordCA94305USA
- Stanford ChEM‐H InstituteStanford University School of MedicineStanfordCA94305USA
- Stanford Cancer InstituteStanford University School of MedicineStanfordCA94305USA
- Department of Pediatrics – EndocrinologyStanford University School of MedicineStanfordCA94305USA
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49
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Nishiguchi A, Ito S, Nagasaka K, Taguchi T. Liquid-Liquid Phase-Separated Hydrogel with Tunable Sol-Gel Transition Behavior as a Hotmelt-Adhesive Postoperative Barrier. ACS APPLIED BIO MATERIALS 2022; 5:4932-4941. [PMID: 36150218 DOI: 10.1021/acsabm.2c00640] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Postoperative barriers have been widely used to prevent adhesions. However, there are currently few barriers that satisfy clinical requirements, such as tissue adhesion, operability, and biocompatibility. Inspired by the adhesion system of living organisms, we report a liquid-liquid phase-separated hydrogel as a single-syringe hotmelt-type postoperative barrier. Mixing polyethylene glycol with gelatin formed liquid-liquid phase-separated hydrogels through segregative liquid-liquid phase separation. Incorporation of a liquid-liquid phase-separated system into gelatin can enhance the sol-gel transition temperature to give a hotmelt-adhesive property to hydrogels. Hotmelt-adhesive hydrogels became a sol phase and cohered into tissue gaps when warmed and solidified at body temperature to adhere to soft tissues. The hydrogels exhibited tissue adhesion to large intestine tissues and showed improved mechanical strength, gelation time, and shear-thinning properties. In rat cecum-abdominal adhesion models, it was confirmed that the resulting hydrogels prevented abdominal adhesion and did not prevent tissue regeneration. Hotmelt-adhesive hydrogels with high tissue adhesive properties, operability, and biocompatibility have enormous potential as barriers to prevent postoperative complications.
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Affiliation(s)
- Akihiro Nishiguchi
- Polymers and Biomaterials Field, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Shima Ito
- Polymers and Biomaterials Field, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Kazuhiro Nagasaka
- Polymers and Biomaterials Field, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Tetsushi Taguchi
- Polymers and Biomaterials Field, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai, Tsukuba, Ibaraki 305-8577, Japan
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50
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Dong M, Jiao D, Zheng Q, Wu ZL. Recent progress in fabrications and applications of functional hydrogel films. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Min Dong
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Dejin Jiao
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
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