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Hu C, Huang R, Xia J, Hu X, Xie D, Jin Y, Qi W, Zhao C, Hu Z. A nanozyme-functionalized bilayer hydrogel scaffold for modulating the inflammatory microenvironment to promote osteochondral regeneration. J Nanobiotechnology 2024; 22:445. [PMID: 39069607 DOI: 10.1186/s12951-024-02723-x] [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: 01/12/2024] [Accepted: 07/14/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND The incidence of osteochondral defects caused by trauma, arthritis or tumours is increasing annually, but progress has not been made in terms of treatment methods. Due to the heterogeneous structure and biological characteristics of cartilage and subchondral bone, the integration of osteochondral repair is still a challenge. RESULTS In the present study, a novel bilayer hydrogel scaffold was designed based on anatomical characteristics to imitate superficial cartilage and subchondral bone. The scaffold showed favourable biocompatibility, and the addition of an antioxidant nanozyme (LiMn2O4) promoted reactive oxygen species (ROS) scavenging by upregulating antioxidant proteins. The cartilage layer effectively protects against chondrocyte degradation in the inflammatory microenvironment. Subchondral bionic hydrogel scaffolds promote osteogenic differentiation of rat bone marrow mesenchymal stem cells (BMSCs) by regulating the AMPK pathway in vitro. Finally, an in vivo rat preclinical osteochondral defect model confirmed that the bilayer hydrogel scaffold efficiently promoted cartilage and subchondral bone regeneration. CONCLUSIONS In general, our biomimetic hydrogel scaffold with the ability to regulate the inflammatory microenvironment can effectively repair osteochondral defects. This strategy provides a promising method for regenerating tissues with heterogeneous structures and biological characteristics.
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Affiliation(s)
- Chuan Hu
- Department of Orthopaedic Surgery, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, 310016, China
| | - Ruipeng Huang
- Department of Orthopaedic Surgery, the Affiliated Hospital of Qingdao University, Qingdao, 266000, China
| | - Jiechao Xia
- Department of Orthopaedic Surgery, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, 310016, China
| | - Xianjing Hu
- The Second Affiliated Hospital of Wenzhou Medical University, Wenzhu, 325000, China
| | - Dingqi Xie
- Department of Orthopaedic Surgery, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, 310016, China
| | - Yang Jin
- Department of Orthopaedic Surgery, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, 310016, China
| | - Weiming Qi
- Zhejiang Center for Medical Device Evaluation, Zhejiang Medical Products Administration, Hangzhou, 310009, China.
| | - Chengliang Zhao
- Department of Orthopaedic Surgery, the Affiliated Hospital of Qingdao University, Qingdao, 266000, China.
| | - Zhijun Hu
- Department of Orthopaedic Surgery, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, 310016, China.
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Novotná R, Franková J. Materials Suitable for Osteochondral Regeneration. ACS OMEGA 2024; 9:30097-30108. [PMID: 39035913 PMCID: PMC11256084 DOI: 10.1021/acsomega.4c04789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/23/2024]
Abstract
Osteochondral defects affect articular cartilage, calcified cartilage, and subchondral bone. The main problem that they cause is a different behavior of cell tissue in the osteochondral and bone part. Articular cartilage is composed mainly of collagen II, glycosaminoglycan (GAG), and water, and has a low healing ability due to a lack of vascularization. However, bone tissue is composed of collagen I, proteoglycans, and inorganic composites such as hydroxyapatite. Due to the discrepancy between the characters of these two parts, it is difficult to find materials that will meet all the structural and other requirements for effective regeneration. When designing a scaffold for an osteochondral defect, a variety of materials are available, e.g., polymers (synthetic and natural), inorganic particles, and extracellular matrix (ECM) components. All of them require the accurate characterization of the prepared materials and a number of in vitro and in vivo tests before they are applied to patients. Taken in concert, the final material needs to mimic the structural, morphological, chemical, and cellular demands of the native tissue. In this review, we present an overview of the structure and composition of the osteochondral part, especially synthetic materials with additives appropriate for healing osteochondral defects. Finally, we summarize in vitro and in vivo methods suitable for evaluating materials for restoring osteochondral defects.
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Affiliation(s)
- Renáta Novotná
- Department
of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 775 15, Czech Republic
| | - Jana Franková
- Department
of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 775 15, Czech Republic
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Wang G, Wang Y, Lu G, Dong S, Tang R, Zhao Y, Nie J, Zhu X. Continuous and Controllable Preparation of Sodium Alginate Hydrogel Tubes Guided by the Soft Cap Inspired by the Apical Growth of the Plant. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29600-29609. [PMID: 38832656 DOI: 10.1021/acsami.4c00655] [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: 06/05/2024]
Abstract
Hydrogel tubes made of sodium alginate (SA) have potential applications in drug delivery, soft robots, biomimetic blood vessels, tissue stents, and other fields. However, the continuous preparation of hollow SA hydrogel tubes with good stability and size control remains a huge challenge for chemists, material scientists, and medical practitioners. Inspired by the plant apical growth strategy, a new method named soft cap-guided growth was proposed to produce SA hydrogel tubes. Due to the introduction of inert low gravity substances, such as air and heptane, into the extrusion needle in front of calcium chloride solution to form a soft cap, the SA hydrogel tubes with controllable sizes were fabricated rapidly and continuously without using a template through a negative gravitropism mechanism. The SA hydrogel tubes had good tensile strength, high burst pressure, and good cell compatibility. In addition, hydrogel tubes with complex patterns were conveniently created by controlling the motion path of a soft cap, such as a rotating SA bath or magnetic force. Our research provided a simple innovative technique to steer the growth of hydrogel tubes, which made it possible to mass produce hydrogel tubes with controllable sizes and programmable patterns.
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Affiliation(s)
- Guohua Wang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yicheng Wang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Guoqiang Lu
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shiyu Dong
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Ruifen Tang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yingying Zhao
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jun Nie
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xiaoqun Zhu
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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Wang X, Yin Y, Wang J, Yu H, Tang Q, Chen Z, Fu G, Ren K, Ji J, Yu L. UV-Triggered Hydrogel Coating of the Double Network Polyelectrolytes for Enhanced Endothelialization. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401301. [PMID: 38544484 PMCID: PMC11187865 DOI: 10.1002/advs.202401301] [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: 02/04/2024] [Revised: 03/05/2024] [Indexed: 06/20/2024]
Abstract
The left atrial appendage (LAA) occluder is an important medical device for closing the LAA and preventing stroke. The device-related thrombus (DRT) prevents the implantation of the occluder in exerting the desired therapeutic effect, which is primarily caused by the delayed endothelialization of the occluder. Functional coatings are an effective strategy for accelerating the endothelialization of occluders. However, the occluder surface area is particularly large and structurally complex, and the device is subjected to a large shear friction in the sheath during implantation, which poses a significant challenge to the coating. Herein, a hydrogel coating by the in situ UV-triggered polymerization of double-network polyelectrolytes is reported. The findings reveal that the double network and electrostatic interactions between the networks resulted in excellent mechanical properties of the hydrogel coating. The sulfonate and Arg-Gly-Asp (RGD) groups in the coating promoted hemocompatibility and endothelial growth of the occluder, respectively. The coating significantly accelerated the endothelialization of the LAA occluder in a canine model is further demonstrated. This study has potential clinical benefits in reducing both the incidence of DRT and the postoperative anticoagulant course for LAA closure.
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Affiliation(s)
- Xing‐wang Wang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou310016China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
| | - Yi‐jing Yin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
| | - Jing Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
| | - Hong‐mei Yu
- Department of Surgery, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou310016China
| | - Qian Tang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou310016China
- Engineering Research Center for Cardiovascular Innovative Devices of Zhejiang ProvinceHangzhou310016China
| | - Zhao‐yang Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
| | - Guo‐sheng Fu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou310016China
- Engineering Research Center for Cardiovascular Innovative Devices of Zhejiang ProvinceHangzhou310016China
| | - Ke‐feng Ren
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou310016China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
- Engineering Research Center for Cardiovascular Innovative Devices of Zhejiang ProvinceHangzhou310016China
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
| | - Lu Yu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou310016China
- Engineering Research Center for Cardiovascular Innovative Devices of Zhejiang ProvinceHangzhou310016China
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Zhang M, Wang H, Dai GC, Lu PP, Gao YC, Cao MM, Li YJ, Rui YF. Injectable self-assembled GDF5-containing dipeptide hydrogels for enhanced tendon repair. Mater Today Bio 2024; 26:101046. [PMID: 38600922 PMCID: PMC11004210 DOI: 10.1016/j.mtbio.2024.101046] [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: 01/11/2024] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
Owing to the tissue characteristics of tendons with few blood vessels and cells, the regeneration and repair of injured tendons can present a considerable challenge, which considerably affects the motor function of limbs and leads to serious physical and mental pain, along with an economic burden on patients. Herein, we designed and fabricated a dipeptide hydrogel (DPH) using polypeptides P11-4 and P11-8. This hydrogel exhibited self-assembly characteristics and could be administered in vitro. To endow the hydrogel with differentiation and regeneration abilities, we added different concentrations of growth differentiation factor 5 (GDF5) to form GDF5@DPH. GDF5@DPH promoted the aggregation and differentiation of tendon stem/progenitor cells and promoted the regeneration and repair of tendon cells and collagen fibers in injured areas. In addition, GDF5@DPH inhibited inflammatory reactions in the injured area. Owing to its injectable properties, DPH can jointly inhibit adhesion and scar hyperplasia between tissues caused by endogenous inflammation and exogenous surgery and can provide a favorable internal environment for the regeneration and repair of the injured area. Overall, the GDF5@DPH system exhibits considerable promise as a novel approach to treating tendon injury.
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Affiliation(s)
- Ming Zhang
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Hao Wang
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Guan-Chun Dai
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Pan-Pan Lu
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Yu-Cheng Gao
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Mu-Ming Cao
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Ying-Juan Li
- Department of Geriatrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Yun-Feng Rui
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
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6
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Kong L, Gao M, Shi J, Zhao C, Chen C. Synthetic Polypeptide Bioadhesive Based on Cation-π Interaction and Secondary Structure. ACS Macro Lett 2024; 13:361-367. [PMID: 38457308 DOI: 10.1021/acsmacrolett.4c00075] [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: 03/10/2024]
Abstract
Bioadhesives have garnered widespread attention in the biomedical field, for wound healing and tissue sealing. However, challenges exist due to the inferior performance of bioadhesives, including weak adhesion, poor biocompatibility, or lack of biodegradability. In this work, we demonstrate the fabrication of hydrogel adhesive based on polypeptides composed of lysine and glutamic acid. The cation-π interaction between the ammonium cations and phenyl groups endows the hydrogel with strong cohesion, and the hydrophobicity of the phenyl group significantly enhances the interaction between polypeptides and the substrate interface, leading to excellent adhesive performance. The equivalent molar ratio of ammonium cations and the phenyl group is beneficial for the enhancement of adhesiveness. Furthermore, we discover that the polypeptides with an α-helix exhibit better adhesiveness than the polypeptides with a β-sheet because the α-helical structure can increase the exposure of the side group on the polypeptide surface, which further strengthens the interaction between polypeptides and the substrate. Besides, this synthetic polypeptide adhesive can seal the tissue quickly and remain intact in water. This adhesive holds significant promise for application in wound healing and tissue sealing, and this study provides insight into the development of more peptide-based adhesives.
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Affiliation(s)
- Liufen Kong
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Mei Gao
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Jiangyan Shi
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Chuanzhuang Zhao
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Chongyi Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
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Ren H, Guo A, Luo C. Sandwich hydrogel to realize cartilage-mimetic structures and performances from polyvinyl alcohol, chitosan and sodium hyaluronate. Carbohydr Polym 2024; 328:121738. [PMID: 38220330 DOI: 10.1016/j.carbpol.2023.121738] [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: 10/19/2023] [Revised: 12/12/2023] [Accepted: 12/23/2023] [Indexed: 01/16/2024]
Abstract
Developing artificial substitutes that mimic the structures and performances of natural cartilage is of great importance. However, it is challenging to integrate the high strength, excellent biocompatibility, low coefficient of friction, long-term wear resistance, outstanding swelling resistance, and osseointegration potential into one material. Herein, a sandwich hydrogel with cartilage-mimetic structures and performances was prepared to achieve this goal. The precursor hydrogel was obtained by freezing-thawing the mixture of poly vinyl alcohol, chitosan and deionized water three cycles, accompanied by soaking in sodium hyaluronate solution. The top of the precursor hydrogel was hydrophobically modified with lauroyl chloride and then loaded with lecithin, while the bottom was mineralized with hydroxyapatite. Due to the multiple linkages (crystalline domains, hydrogen bonds, and ionic interactions), the compressive stress was 71 MPa. Owing to the synergy of the hydrophobic modification and lecithin, the coefficient of friction was 0.01. Additionally, no wear trace was observed after 50,000 wear cycles. Remarkably, hydroxyapatite enabled the hydrogel osseointegration potential. The swelling ratio of the hydrogel was 0.06 g/g after soaking in simulated synovial fluid for 7 days. Since raw materials were non-toxic, the cell viability was 100 %. All of the above merits make it an ideal material for cartilage replacement.
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Affiliation(s)
- Hanyu Ren
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, China
| | - Andi Guo
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, China
| | - Chunhui Luo
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, China; Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, Ningxia, China; Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, China.
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8
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Sun J, Chen J, Sun Y, Hou Y, Liu Z, Lu H. On the origin of the low immunogenicity and biosafety of a neutral α-helical polypeptide as an alternative to polyethylene glycol. Bioact Mater 2024; 32:333-343. [PMID: 37927900 PMCID: PMC10622589 DOI: 10.1016/j.bioactmat.2023.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 11/07/2023] Open
Abstract
Poly(ethylene glycol) (PEG) is a prominent synthetic polymer widely used in biomedicine. Despite its notable success, recent clinical evidence highlights concerns regarding the immunogenicity and adverse effects associated with PEG in PEGylated proteins and lipid nanoparticles. Previous studies have found a neutral helical polypeptide poly(γ-(2-(2-(2-methoxyethoxy)ethoxy)ethyl l-glutamate), namely L-P(EG3Glu), as a potential alternative to PEG, displaying lower immunogenicity. To comprehensively assess the immunogenicity, distribution, degradation, and biosafety of L-P(EG3Glu), herein, we employ assays including enzyme-linked immunosorbent assay, positron emission tomography-computed tomography, and fluorescent resonance energy transfer. Our investigations involve in vivo immune responses, biodistribution, and macrophage activation of interferon (IFN) conjugates tethered with helical L-P(EG3Glu) (L20k-IFN), random-coiled DL-P(EG3Glu) (DL20k-IFN), and PEG (PEG20k-IFN). Key findings encompass: minimal anti-IFN and anti-polymer antibodies elicited by L20k-IFN; length-dependent affinity of PEG to anti-PEG antibodies; accelerated clearance of DL20k-IFN and PEG20k-IFN linked to anti-IFN and anti-polymer IgG; complement activation for DL20k-IFN and PEG20k-IFN but not L20k-IFN; differential clearance with L20k-IFN kidney-based, and DL20k-IFN/PEG20k-IFN accumulation mainly in liver/spleen; enhanced macrophage activation by DL20k-IFN and PEG20k-IFN; L-P(EG3Glu) resistance to proteolysis; and safer repeated administrations of L-P(EG3Glu) in rats. Overall, this study offers comprehensive insights into the lower immunogenicity of L-P(EG3Glu) compared to DL-P(EG3Glu) and PEG, supporting its potential clinical use in protein conjugation and nanomedicines.
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Affiliation(s)
- Jialing Sun
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Junyi Chen
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yiming Sun
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yingqin Hou
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zhibo Liu
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
- Peking University–Tsinghua University Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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9
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Chen H, Zhang Q. Polypeptides as alternatives to PEGylation of therapeutic agents. Expert Opin Drug Deliv 2024; 21:1-12. [PMID: 38116624 DOI: 10.1080/17425247.2023.2297937] [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: 10/05/2023] [Accepted: 12/18/2023] [Indexed: 12/21/2023]
Abstract
INTRODUCTION Due to the concerns raised by the extensive application of PEGylation, polypeptides have stood out as excellent candidates with adequate biocompatibility and biodegradability with tunable hydrophilicity. AREAS COVERED In this review, polypeptides with the potential to replace PEGylation have been summarized and their application has been reviewed, including XTEN, PASylation, polysarcosine, zwitterion polypeptides, ELPylation, etc. Besides their strengths, the remaining challenges have also been discussed and the future perspectives have been provided. EXPERT OPINION Polypeptides have been applied in the designing of peptide/protein drugs as well as nanomedicines, and some of the pharmaceutics have made it into the clinical trials and got approved. These polypeptides showed similar hydrophilic properties to PEGylation, which increased the hydrodynamic volumes of protein drugs, reduced kidney elimination, decreased protein-polymer interaction and potentially improved the drug delivery efficiency due to the extended circulation time in the system. Moreover, they demonstrated superior biodegradability and biocompatibility, compensating for the deficiencies for polymers such as PEG.
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Affiliation(s)
- Huali Chen
- College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Qianyu Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing, China
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10
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李 茂, 郑 国, 杨 佳, 陈 小, 许 剑, 赵 德. [Bone/cartilage immunomodulating hydrogels: construction strategies and applications]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2023; 37:1423-1430. [PMID: 37987055 PMCID: PMC10662399 DOI: 10.7507/1002-1892.202305081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/26/2023] [Accepted: 09/26/2023] [Indexed: 11/22/2023]
Abstract
Objective To review the research progress in the construction strategy and application of bone/cartilage immunomodulating hydrogels. Methods The literature related to bone/cartilage immunomodulating hydrogels at home and abroad in recent years was reviewed and summarized from the immune response mechanism of different immune cells, the construction strategy of immunomodulating hydrogels, and their practical applications. Results According to the immune response mechanism of different immune cells, the biological materials with immunoregulatory effect is designed, which can regulate the immune response of the body and thus promote the regeneration of bone/cartilage tissue. Immunomodulating hydrogels have good biocompatibility, adjustability, and multifunctionality. By regulating the physical and chemical properties of hydrogel and loading factors or cells, the immune system of the body can be purposively regulated, thus forming an immune microenvironment conducive to osteochondral regeneration. Conclusion Immunomodulating hydrogels can promote osteochondral repair by affecting the immunomodulation process of host organs or cells. It has shown a wide application prospect in the repair of osteochondral defects. However, more data support from basic and clinical experiments is needed for this material to further advance its clinical translation process.
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Affiliation(s)
- 茂源 李
- 大连大学中山临床学院(辽宁大连 116001)Zhongshan Clinical College of Dalian University, Dalian Liaoning, 116001, P. R. China
- 大连大学附属中山医院骨科(辽宁大连 116001)Department of Orthopaedics, Zhongshan Hospital, Dalian University, Dalian Liaoning, 116001, P. R. China
| | - 国爽 郑
- 大连大学中山临床学院(辽宁大连 116001)Zhongshan Clinical College of Dalian University, Dalian Liaoning, 116001, P. R. China
| | - 佳慧 杨
- 大连大学中山临床学院(辽宁大连 116001)Zhongshan Clinical College of Dalian University, Dalian Liaoning, 116001, P. R. China
| | - 小芳 陈
- 大连大学中山临床学院(辽宁大连 116001)Zhongshan Clinical College of Dalian University, Dalian Liaoning, 116001, P. R. China
- 大连大学附属中山医院骨科(辽宁大连 116001)Department of Orthopaedics, Zhongshan Hospital, Dalian University, Dalian Liaoning, 116001, P. R. China
| | - 剑锋 许
- 大连大学中山临床学院(辽宁大连 116001)Zhongshan Clinical College of Dalian University, Dalian Liaoning, 116001, P. R. China
- 大连大学附属中山医院骨科(辽宁大连 116001)Department of Orthopaedics, Zhongshan Hospital, Dalian University, Dalian Liaoning, 116001, P. R. China
| | - 德伟 赵
- 大连大学中山临床学院(辽宁大连 116001)Zhongshan Clinical College of Dalian University, Dalian Liaoning, 116001, P. R. China
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11
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Falcone N, Ermis M, Tamay DG, Mecwan M, Monirizad M, Mathes TG, Jucaud V, Choroomi A, de Barros NR, Zhu Y, Vrana NE, Kraatz HB, Kim HJ, Khademhosseini A. Peptide Hydrogels as Immunomaterials and Their Use in Cancer Immunotherapy Delivery. Adv Healthc Mater 2023; 12:e2301096. [PMID: 37256647 PMCID: PMC10615713 DOI: 10.1002/adhm.202301096] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/15/2023] [Indexed: 06/01/2023]
Abstract
Peptide-based hydrogel biomaterials have emerged as an excellent strategy for immune system modulation. Peptide-based hydrogels are supramolecular materials that self-assemble into various nanostructures through various interactive forces (i.e., hydrogen bonding and hydrophobic interactions) and respond to microenvironmental stimuli (i.e., pH, temperature). While they have been reported in numerous biomedical applications, they have recently been deemed promising candidates to improve the efficacy of cancer immunotherapies and treatments. Immunotherapies seek to harness the body's immune system to preemptively protect against and treat various diseases, such as cancer. However, their low efficacy rates result in limited patient responses to treatment. Here, the immunomaterial's potential to improve these efficacy rates by either functioning as immune stimulators through direct immune system interactions and/or delivering a range of immune agents is highlighted. The chemical and physical properties of these peptide-based materials that lead to immuno modulation and how one may design a system to achieve desired immune responses in a controllable manner are discussed. Works in the literature that reports peptide hydrogels as adjuvant systems and for the delivery of immunotherapies are highlighted. Finally, the future trends and possible developments based on peptide hydrogels for cancer immunotherapy applications are discussed.
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Affiliation(s)
- Natashya Falcone
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Menekse Ermis
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Dilara Goksu Tamay
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
- Department of Biotechnology, Middle East Technical University, Ankara, 06800, Turkey
| | - Marvin Mecwan
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Mahsa Monirizad
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Tess Grett Mathes
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Auveen Choroomi
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Natan Roberto de Barros
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Nihal Engin Vrana
- SPARTHA Medical, CRBS 1 Rue Eugene Boeckel, Strasbourg, 67000, France
| | - Heinz-Bernhard Kraatz
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, M5S 3E5, Canada
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, M1C 1A4, Canada
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
- College of Pharmacy, Korea University, Sejong, 30019, Republic of Korea
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
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12
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Gao R, Xu S, Chen C, Liu D, He Y, Zang Y, Dong X, Ma G, Liu H. Impact of 1,25-dihydroxyvitamin D 3 PLGA-nanoparticles/chitosan hydrogel on osteoimmunomodulation. Int J Biol Macromol 2023; 247:125624. [PMID: 37392919 DOI: 10.1016/j.ijbiomac.2023.125624] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/14/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023]
Abstract
Severe bone defects that extend beyond a critical size do not heal on their own, increasing the risk of complications and leading to poor outcomes for patients. Healing is a highly coordinated and complex process in which immune cells have an important function making the design and preparation of biomaterials with immunomodulatory functions an important new therapeutic strategy. 1,25-dihydroxyvitamin D3 (VD3) is crucial for bone metabolism and immune regulation. For post-defect bone regeneration, we developed a drug delivery system (DDS) based on chitosan (CS) and nanoparticles (NPs) to sustain the release effect of VD3 and desirable biological characteristics. The hydrogel system was physically characterized and confirmed to have good mechanical strength, degradation rate, and drug release rate. In vitro experiments showed that the cells had good biological activity when the hydrogel was co-cultured with MC3T3-E1 and RAW264.7. The high expression of ARG-1 and low expression of iNOS in macrophages confirmed that VD3-NPs/CS-GP hydrogel transformed lipopolysaccharide-induced M1 macrophages into M2 macrophages. Alkaline phosphatase and alizarin red staining showed that VD3-NPs/CS-GP hydrogel promoted osteogenic differentiation under inflammatory conditions. In conclusion, VD3-NPs/CS-GP hydrogel with synergistic anti-inflammatory and pro-osteogenic differentiation effects may serve as a potential immunomodulatory biomaterial for bone repair and regeneration in cases of bone defects.
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Affiliation(s)
- Rongzhu Gao
- School of Stomatology, Dalian Medical University, Dalian 116044, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian 116044, China; Department of Stomatology, Changhai hospital, Shanghai 200433, China
| | - Shaoyang Xu
- School of Stomatology, Dalian Medical University, Dalian 116044, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian 116044, China
| | - Chen Chen
- School of Stomatology, Dalian Medical University, Dalian 116044, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian 116044, China
| | - Donglei Liu
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China; School of Basic Medicine, Binzhou Medical University, Yantai 264003, China
| | - Yuzhu He
- School of Stomatology, Dalian Medical University, Dalian 116044, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian 116044, China
| | - Yaran Zang
- School of Stomatology, Dalian Medical University, Dalian 116044, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian 116044, China
| | - Xufeng Dong
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Guowu Ma
- School of Stomatology, Dalian Medical University, Dalian 116044, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian 116044, China.
| | - Huiying Liu
- School of Stomatology, Dalian Medical University, Dalian 116044, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian 116044, China.
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13
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Zhang W, Zha K, Hu W, Xiong Y, Knoedler S, Obed D, Panayi AC, Lin Z, Cao F, Mi B, Liu G. Multifunctional hydrogels: advanced therapeutic tools for osteochondral regeneration. Biomater Res 2023; 27:76. [PMID: 37542353 PMCID: PMC10403923 DOI: 10.1186/s40824-023-00411-9] [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: 05/09/2023] [Accepted: 07/05/2023] [Indexed: 08/06/2023] Open
Abstract
Various joint pathologies such as osteochondritis dissecans, osteonecrosis, rheumatic disease, and trauma, may result in severe damage of articular cartilage and other joint structures, ranging from focal defects to osteoarthritis (OA). The osteochondral unit is one of the critical actors in this pathophysiological process. New approaches and applications in tissue engineering and regenerative medicine continue to drive the development of OA treatment. Hydrogel scaffolds, a component of tissue engineering, play an indispensable role in osteochondral regeneration. In this review, tissue engineering strategies regarding osteochondral regeneration were highlighted and summarized. The application of hydrogels for osteochondral regeneration within the last five years was evaluated with an emphasis on functionalized physical and chemical properties of hydrogel scaffolds, functionalized delivery hydrogel scaffolds as well as functionalized intelligent response hydrogel scaffolds. Lastly, to serve as guidance for future efforts in the creation of bioinspired hydrogel scaffolds, a succinct summary and new views for specific mechanisms, applications, and existing limitations of the newly designed functionalized hydrogel scaffolds were offered.
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Affiliation(s)
- Wenqian Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Kangkang Zha
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Weixian Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Yuan Xiong
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Samuel Knoedler
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02152, USA
| | - Doha Obed
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02152, USA
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - Adriana C Panayi
- Department of Hand, Plastic and Reconstructive Surgery, Microsurgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, 67071, Ludwigshafen/Rhine, Germany
| | - Ze Lin
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Faqi Cao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
| | - Bobin Mi
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
| | - Guohui Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
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14
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Yu S, Huang Y, Shen B, Zhang W, Xie Y, Gao Q, Zhao D, Wu Z, Liu Y. Peptide hydrogels: Synthesis, properties, and applications in food science. Compr Rev Food Sci Food Saf 2023; 22:3053-3083. [PMID: 37194927 DOI: 10.1111/1541-4337.13171] [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: 07/23/2022] [Revised: 02/26/2023] [Accepted: 04/21/2023] [Indexed: 05/18/2023]
Abstract
Due to the unique and excellent biological, physical, and chemical properties of peptide hydrogels, their application in the biomedical field is extremely wide. The applications of peptide hydrogels are closely related to their unique responsiveness and excellent properties. However, its defects in mechanical properties, stability, and toxicity limit its application in the food field. In this review, we focus on the fabrication methods of peptide hydrogels through the physical, chemical, and biological stimulations. In addition, the functional design of peptide hydrogels by the incorporation with materials is discussed. Meanwhile, the excellent properties of peptide hydrogels such as the stimulus responsiveness, biocompatibility, antimicrobial properties, rheology, and stability are reviewed. Finally, the application of peptide hydrogel in the food field is summarized and prospected.
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Affiliation(s)
- Shuang Yu
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
| | - Yueying Huang
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Biao Shen
- Zhoushan Customs District, Zhoushan, P. R. China
| | - Wang Zhang
- School of Marine Science, Ningbo University, Ningbo, China
| | - Yan Xie
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Qi Gao
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Dan Zhao
- School of Marine Science, Ningbo University, Ningbo, China
| | - Zufang Wu
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
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15
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Wang S, Lu H. Ring-Opening Polymerization of Amino Acid N-Carboxyanhydrides with Unprotected/Reactive Side Groups. I. d-Penicillamine N-Carboxyanhydride. ACS Macro Lett 2023; 12:555-562. [PMID: 37041004 DOI: 10.1021/acsmacrolett.3c00065] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
The ring-opening (co)polymerization (ROP) of N-carboxyanhydride (NCA) monomers bearing unprotected/reactive side groups is rare and challenging. Here, we report the ROP of a d-penicillamine NCA (Pen-NCA) monomer for the synthesis of tertiary thiol-functionalized (co)polypeptides. Through judicious selection of reaction solvents and the use of benzoic acid as an additive in the ROP, the intramolecular isomerization side reactions of Pen-NCA are suppressed, generating homo- and copolypeptides with improved yield, high molecular weight, and narrow molecular weight distributions. Successful postpolymerization modifications of the d-Pen-containing copolypeptides on the tertiary thiols are achieved with high efficiency through thiol-Michael, SN2, and nitrosylation reactions. This work provides an efficient protection-free approach to generating functional polypeptides and creates a fundamental understanding for Pen-NCA chemistry.
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Affiliation(s)
- Shuo Wang
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
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16
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Wang Y, Chen Y, Wei Y. Osteoarthritis animal models for biomaterial-assisted osteochondral regeneration. BIOMATERIALS TRANSLATIONAL 2022; 3:264-279. [PMID: 36846505 PMCID: PMC9947734 DOI: 10.12336/biomatertransl.2022.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/26/2022] [Accepted: 12/10/2022] [Indexed: 03/01/2023]
Abstract
Clinical therapeutics for the regeneration of osteochondral defects (OCD) in the early stages of osteoarthritis remain an enormous challenge in orthopaedics. For in-depth studies of tissue engineering and regenerative medicine in terms of OCD treatment, the utility of an optimal OCD animal model is crucial for assessing the effects of implanted biomaterials on the repair of damaged osteochondral tissues. Currently, the most frequently used in vivo animal models for OCD regeneration include mice, rats, rabbits, dogs, pigs, goats, sheep, horses and nonhuman primates. However, there is no single "gold standard" animal model to accurately recapitulate human disease in all aspects, thus understanding the benefits and limitations of each animal model is critical for selecting the most suitable one. In this review, we aim to elaborate the complex pathological changes in osteoarthritic joints and to summarise the advantages and limitations of OCD animal models utilised for biomaterial testing along with the methodology of outcome assessment. Furthermore, we review the surgical procedures of OCD creation in different species, and the novel biomaterials that promote OCD regeneration. Above all, it provides a significant reference for selection of an appropriate animal model for use in preclinical in vivo studies of biomaterial-assisted osteochondral regeneration in osteoarthritic joints.
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Affiliation(s)
- Yi Wang
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Yangyang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yulong Wei
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China,Corresponding author: Yulong Wei,
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17
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Chen Y, Yan X, Yuan F, Lin L, Wang S, Ye J, Zhang J, Yang M, Wu D, Wang X, Yu J. Kartogenin-Conjugated Double-Network Hydrogel Combined with Stem Cell Transplantation and Tracing for Cartilage Repair. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105571. [PMID: 36253092 PMCID: PMC9762312 DOI: 10.1002/advs.202105571] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 09/01/2022] [Indexed: 06/16/2023]
Abstract
The effectiveness of existing tissue-engineering cartilage (TEC) is known to be hampered by weak integration of biocompatibility, biodegradation, mechanical strength, and microenvironment supplies. The strategy of hydrogel-based TEC holds considerable promise in circumventing these problems. Herein, a non-toxic, biodegradable, and mechanically optimized double-network (DN) hydrogel consisting of polyethylene glycol (PEG) and kartogenin (KGN)-conjugated chitosan (CHI) is constructed using a simple soaking strategy. This PEG-CHI-KGN DN hydrogel possesses favorable architectures, suitable mechanics, remarkable cellular affinity, and sustained KGN release, which can facilitate the cartilage-specific genes expression and extracellular matrix secretion of peripheral blood-derived mesenchymal stem cells (PB-MSCs). Notably, after tracing the transplanted cells by detecting the rabbit sex-determining region Y-linked gene sequence, the allogeneic PB-MSCs are found to survive for even 3 months in the regenerated cartilage. Here, the long-term release of KGN is able to efficiently and persistently activate multiple genes and signaling pathways to promote the chondrogenesis, chondrocyte differentiation, and survival of PB-MSCs. Thus, the regenerated tissues exhibit well-matched histomorphology and biomechanical performance such as native cartilage. Consequently, it is believed this innovative work can expand the choice for developing the next generation of orthopedic implants in the loadbearing region of a living body.
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Affiliation(s)
- You‐Rong Chen
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
| | - Xin Yan
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
| | - Fu‐Zhen Yuan
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
| | - Lin Lin
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
| | - Shao‐Jie Wang
- Department of Joint Surgery and Sports Medicine, Zhongshan HospitalXiamen UniversityXiamen361000China
| | - Jing Ye
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
| | - Ji‐Ying Zhang
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
| | - Meng Yang
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
| | - De‐Cheng Wu
- Department of Biomedical EngineeringSouthern University of Science and TechnologyShenzhen518055China
| | - Xing Wang
- Beijing National Laboratory for Molecular SciencesState Key Laboratory of Polymer Physics and ChemistryInstitute of Chemistry Chinese Academy of SciencesBeijing100190China
| | - Jia‐Kuo Yu
- Department of Sports MedicineBeijing Key Laboratory of Sports InjuriesPeking University Third HospitalBeijing100191China
- Institute of Sports MedicinePeking UniversityBeijing100191China
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18
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Sun Y, Jing X, Liu Y, Yu B, Hu H, Cong H, Shen Y. A chitosan derivative-crosslinked hydrogel with controllable release of polydeoxyribonucleotides for wound treatment. Carbohydr Polym 2022; 300:120298. [DOI: 10.1016/j.carbpol.2022.120298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/11/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
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