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Yang Y, Wang W, Zeng Q, Wang N, Li W, Chen B, Guan Q, Li C, Li W. Fabricating oxygen self-supplying 3D printed bioactive hydrogel scaffold for augmented vascularized bone regeneration. Bioact Mater 2024; 40:227-243. [PMID: 38973993 PMCID: PMC11226730 DOI: 10.1016/j.bioactmat.2024.06.016] [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: 03/12/2024] [Revised: 05/26/2024] [Accepted: 06/10/2024] [Indexed: 07/09/2024] Open
Abstract
Limited cells and factors, inadequate mechanical properties, and necrosis of defects center have hindered the wide clinical application of bone-tissue engineering scaffolds. Herein, we construct a self-oxygenated 3D printed bioactive hydrogel scaffold by integrating oxygen-generating nanoparticles and hybrid double network hydrogel structure. The hydrogel scaffold possesses the characteristics of extracellular matrix; Meanwhile, the fabricated hybrid double network structure by polyacrylamide and CaCl2-crosslinked sodium carboxymethylcellulose endows the hydrogel favorable compressive strength and 3D printability. Furthermore, the O2 generated by CaO2 nanoparticles encapsulated in ZIF-8 releases steadily and sustainably because of the well-developed microporous structure of ZIF-8, which can significantly promote cell viability and proliferation in vitro, as well as angiogenesis and osteogenic differentiation with the assistance of Zn2+. More significantly, the synergy of O2 and 3D printed pore structure can prevent necrosis of defects center and facilitate cell infiltration by providing cells the nutrients and space they need, which can further induce vascular network ingrowth and accelerate bone regeneration in all areas of the defect in vivo. Overall, this work provides a new avenue for preparing cell/factor-free bone-tissue engineered scaffolds that possess great potential for tissue regeneration and clinical alternative.
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Affiliation(s)
- Yang Yang
- State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Wanmeng Wang
- Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, School of Stomatology, Tianjin Medical University, Tianjin, 300071, PR China
| | - Qianrui Zeng
- State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Ning Wang
- Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, School of Stomatology, Tianjin Medical University, Tianjin, 300071, PR China
| | - Wenbo Li
- State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Bo Chen
- Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, School of Stomatology, Tianjin Medical University, Tianjin, 300071, PR China
| | - Qingxin Guan
- State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Changyi Li
- Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, School of Stomatology, Tianjin Medical University, Tianjin, 300071, PR China
| | - Wei Li
- State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, PR China
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2
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Esmaeili J, Ghoraishizadeh S, Farzan M, Barati A, Salehi E, Ai J. Fabrication and Evaluation of a Soy Protein Isolate/Collagen/Sodium Alginate Multifunctional Bilayered Wound Dressing: Release of Cinnamaldehyde, Artemisia absinthium, and Oxygen. ACS APPLIED BIO MATERIALS 2024; 7:5470-5482. [PMID: 39041410 DOI: 10.1021/acsabm.4c00611] [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] [Indexed: 07/24/2024]
Abstract
Chronic wounds, such as diabetic ulcers and pressure sores, pose significant challenges in modern healthcare due to their prolonged healing times and susceptibility to infections. This study aims to engineer a bilayered wound dressing (BLWD) composed of soy protein isolate/collagen with the ability to release Cinnamaldehyde, Artemisia absinthium (AA), and oxygen. Cinnamaldehyde, magnesium peroxide (MgO2), and AA extract were encapsulated. Nanoparticles were evaluated using scanning electron microscopy (SEM), dynamic light scattering, and ZETA potential tests. Swelling, degradation, water vapor penetration, tensile, MTT, SEM, oxygen release, AA extract release, and antibacterial properties were performed. An in vivo study was carried out to assess the final wound dressing under Hematoxiline&Eosin and Masson trichrome staining analysis and compared to a commercial product. According to the results, the synthesized nanoparticles had an average diameter of about 20 nm with a zeta potential in the range of -20 to -30 mV. The layers had uniform and dense surfaces. The maximum swelling and degradation of the dressing was about 130 and 13% respectively. Generally, better mechanical properties were observed in BLWD than in the single-layer case. More than 90% biocompatibility for the wound dressing was reported. The BLWD could inhibit the growth of Gram-positive and Gram-negative microorganisms. Histopathological analysis showed an acceptable wound-healing property. To sum up, the engineered wound dressing can be a good candidate for more clinical trials.
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Affiliation(s)
- Javad Esmaeili
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 6761985851, Iran
- Department of Tissue Engineering, TISSUEHUB Co., Tehran 1343864331, Iran
| | | | - Mahour Farzan
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord 8813733395, Iran
| | - Aboulfazl Barati
- Center for Materials and Manufacturing Sciences, Departments of Chemistry and Physics, Troy University, Troy 36082, Alabama, United States
| | - Ehsan Salehi
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 6761985851, Iran
| | - Jafar Ai
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran 1343864331, Iran
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3
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Augustine R, Gezek M, Nikolopoulos VK, Buck PL, Bostanci NS, Camci-Unal G. Stem Cells in Bone Tissue Engineering: Progress, Promises and Challenges. Stem Cell Rev Rep 2024:10.1007/s12015-024-10738-y. [PMID: 39028416 DOI: 10.1007/s12015-024-10738-y] [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] [Accepted: 05/17/2024] [Indexed: 07/20/2024]
Abstract
Bone defects from accidents, congenital conditions, and age-related diseases significantly impact quality of life. Recent advancements in bone tissue engineering (TE) involve biomaterial scaffolds, patient-derived cells, and bioactive agents, enabling functional bone regeneration. Stem cells, obtained from numerous sources including umbilical cord blood, adipose tissue, bone marrow, and dental pulp, hold immense potential in bone TE. Induced pluripotent stem cells and genetically modified stem cells can also be used. Proper manipulation of physical, chemical, and biological stimulation is crucial for their proliferation, maintenance, and differentiation. Stem cells contribute to osteogenesis, osteoinduction, angiogenesis, and mineralization, essential for bone regeneration. This review provides an overview of the latest developments in stem cell-based TE for repairing and regenerating defective bones.
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Affiliation(s)
- Robin Augustine
- Department of Radiology, Stanford Medicine, Stanford University, Palo Alto, CA, 94304, USA
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
| | - Mert Gezek
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, MA, 01854, USA
| | | | - Paige Lauren Buck
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, MA, 01854, USA
| | - Nazli Seray Bostanci
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, MA, 01854, USA
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA.
- Department of Surgery, University of Massachusetts Medical School, Worcester, MA, 01605, USA.
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4
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Wei J, Chen X, Xu Y, Shi L, Zhang M, Nie M, Liu X. Significance and considerations of establishing standardized critical values for critical size defects in animal models of bone tissue regeneration. Heliyon 2024; 10:e33768. [PMID: 39071581 PMCID: PMC11283167 DOI: 10.1016/j.heliyon.2024.e33768] [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: 02/08/2024] [Revised: 06/26/2024] [Accepted: 06/26/2024] [Indexed: 07/30/2024] Open
Abstract
Establishing animal models with critical size defects (CSDs) is critical for conducting experimental investigations engineering of bone tissue regeneration. Currently, a standardised protocol for establishing an animal CSDs model has not been developed. Furthermore, a consensus has not been reached regarding the critical values of CSDs. Successful establishment of animal models for CSDs is a complex process that requires researchers to meticulously consider a variety of factors such as age, species, bone defect size and anatomic location. The specific numerical values for CSDs in small animal models vary, and a clear definition of the critical value for large animal CSDs models in the literature is still lacking. This review consolidates the advancements in critical bone defects animal models by outlining the research landscape across variables, including animal species, age groups, bone defect sites, and sizes, to offer valuable guidance and a theoretical framework for the establishment of pertinent experimental animal models.
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Affiliation(s)
- Jian Wei
- Department of Periodontics & Oral Mucosal Diseases, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Xiao Chen
- Department of Oral Medical Technology, Sichuan College of Traditional Chinese Medicine, Mianyang, 621000, China
- Department of Orthodontics, Mianyang Stomatological Hospital, Mianyang, 621000, China
| | - Yingjiao Xu
- Department of Periodontics & Oral Mucosal Diseases, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Lijuan Shi
- Department of Periodontics & Oral Mucosal Diseases, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Menglian Zhang
- Department of Periodontics & Oral Mucosal Diseases, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Minhai Nie
- Department of Periodontics & Oral Mucosal Diseases, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Xuqian Liu
- Department of Basic Medicine of Stomatology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
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5
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Liu Z, Wang T, Zhang L, Luo Y, Zhao J, Chen Y, Wang Y, Cao W, Zhao X, Lu B, Chen F, Zhou Z, Zheng L. Metal-Phenolic Networks-Reinforced Extracellular Matrix Scaffold for Bone Regeneration via Combining Radical-Scavenging and Photo-Responsive Regulation of Microenvironment. Adv Healthc Mater 2024; 13:e2304158. [PMID: 38319101 DOI: 10.1002/adhm.202304158] [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: 11/24/2023] [Revised: 01/24/2024] [Indexed: 02/07/2024]
Abstract
The limited regulation strategies of the regeneration microenvironment significantly hinder bone defect repair effectiveness. One potential solution is using biomaterials capable of releasing bioactive ions and biomolecules. However, most existing biomaterials lack real-time control features, failing to meet high regulation requirements. Herein, a new Strontium (Sr) and epigallocatechin-3-gallate (EGCG) based metal-phenolic network with polydopamine (PMPNs) modification is prepared. This material reinforces a biomimetic scaffold made of extracellular matrix (ECM) and hydroxyapatite nanowires (nHAW). The PMPNs@ECM/nHAW scaffold demonstrates exceptional scavenging of free radicals and reactive oxygen species (ROS), promoting HUVECs cell migration and angiogenesis, inducing stem cell osteogenic differentiation, and displaying high biocompatibility. Additionally, the PMPNs exhibit excellent photothermal properties, further enhancing the scaffold's bioactivities. In vivo studies confirm that PMPNs@ECM/nHAW with near-infrared (NIR) stimulation significantly promotes angiogenesis and osteogenesis, effectively regulating the microenvironment and facilitating bone tissue repair. This research not only provides a biomimetic scaffold for bone regeneration but also introduces a novel strategy for designing advanced biomaterials. The combination of real-time photothermal intervention and long-term chemical intervention, achieved through the release of bioactive molecules/ions, represents a promising direction for future biomaterial development.
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Affiliation(s)
- Zhiqing Liu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Tianlong Wang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Lei Zhang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Yiping Luo
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Jinhui Zhao
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Yixing Chen
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Yao Wang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Wentao Cao
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Xinyu Zhao
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Bingqiang Lu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Feng Chen
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Zifei Zhou
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Longpo Zheng
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
- Shanghai Trauma Emergency Center, Shanghai, 200072, China
- Orthopedic Intelligent Minimally Invasive Diagnosis & Treatment Center, Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
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Chen J, Zhang H, Zhao T, Yu Y, Song J, Zhao Y, Alshawwa H, Zou X, Zhang Z. Oxygen Self-Supplied Nanoplatform for Enhanced Photodynamic Therapy against Enterococcus Faecalis within Root Canals. Adv Healthc Mater 2024; 13:e2302926. [PMID: 38273674 DOI: 10.1002/adhm.202302926] [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: 09/01/2023] [Revised: 01/10/2024] [Indexed: 01/27/2024]
Abstract
The successful treatment of persistent and recurrent endodontic infections hinges upon the eradication of residual microorganisms within the root canal system, which urgently needs novel drugs to deliver potent yet gentle antimicrobial effects. Antibacterial photodynamic therapy (aPDT) is a promising tool for root canal infection management. Nevertheless, the hypoxic microenvironment within the root canal system significantly limits the efficacy of this treatment. Herein, a nanohybrid drug, Ce6/CaO2/ZIF-8@polyethylenimine (PEI), is developed using a bottom-up strategy to self-supply oxygen for enhanced aPDT. PEI provides a positively charged surface, which enables precise targeting of bacteria. CaO2 reacts with H2O to generate O2, which alleviates the hypoxia in the root canal and serves as a substrate for Ce6 under 660 nm laser irradiation, leading to the successful eradication of planktonic Enterococcus faecalis (E. faecalis) and biofilm in vitro and, moreover, the effective elimination of mature E. faecalis biofilm in situ within the root canal system. This smart design offers a viable alternative for mitigating hypoxia within the root canal system to overcome the restricted efficacy of photosensitizers, providing an exciting prospect for the clinical management of persistent endodontic infection.
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Affiliation(s)
- Jiawen Chen
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Hong Zhang
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Tiancong Zhao
- College of Chemistry and Materials, Department of Chemistry and Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials (2011-iChEM), Fudan University, Shanghai, 200433, P. R. China
| | - Yiyan Yu
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Jiazhuo Song
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Yuanhang Zhao
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Hamed Alshawwa
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Xinying Zou
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Zhimin Zhang
- Department of Endodontics, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
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7
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He L. Biomaterials for Regenerative Cranioplasty: Current State of Clinical Application and Future Challenges. J Funct Biomater 2024; 15:84. [PMID: 38667541 PMCID: PMC11050949 DOI: 10.3390/jfb15040084] [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: 02/10/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Acquired cranial defects are a prevalent condition in neurosurgery and call for cranioplasty, where the missing or defective cranium is replaced by an implant. Nevertheless, the biomaterials in current clinical applications are hardly exempt from long-term safety and comfort concerns. An appealing solution is regenerative cranioplasty, where biomaterials with/without cells and bioactive molecules are applied to induce the regeneration of the cranium and ultimately repair the cranial defects. This review examines the current state of research, development, and translational application of regenerative cranioplasty biomaterials and discusses the efforts required in future research. The first section briefly introduced the regenerative capacity of the cranium, including the spontaneous bone regeneration bioactivities and the presence of pluripotent skeletal stem cells in the cranial suture. Then, three major types of biomaterials for regenerative cranioplasty, namely the calcium phosphate/titanium (CaP/Ti) composites, mineralised collagen, and 3D-printed polycaprolactone (PCL) composites, are reviewed for their composition, material properties, and findings from clinical trials. The third part discusses perspectives on future research and development of regenerative cranioplasty biomaterials, with a considerable portion based on issues identified in clinical trials. This review aims to facilitate the development of biomaterials that ultimately contribute to a safer and more effective healing of cranial defects.
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Affiliation(s)
- Lizhe He
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310028, China
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Ren Y, Chu X, Senarathna J, Bhargava A, Grayson WL, Pathak AP. Multimodality imaging reveals angiogenic evolution in vivo during calvarial bone defect healing. Angiogenesis 2024; 27:105-119. [PMID: 38032405 PMCID: PMC10964991 DOI: 10.1007/s10456-023-09899-0] [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: 07/19/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023]
Abstract
The healing of calvarial bone defects is a pressing clinical problem that involves the dynamic interplay between angiogenesis and osteogenesis within the osteogenic niche. Although structural and functional vascular remodeling (i.e., angiogenic evolution) in the osteogenic niche is a crucial modulator of oxygenation, inflammatory and bone precursor cells, most clinical and pre-clinical investigations have been limited to characterizing structural changes in the vasculature and bone. Therefore, we developed a new multimodality imaging approach that for the first time enabled the longitudinal (i.e., over four weeks) and dynamic characterization of multiple in vivo functional parameters in the remodeled vasculature and its effects on de novo osteogenesis, in a preclinical calvarial defect model. We employed multi-wavelength intrinsic optical signal (IOS) imaging to assess microvascular remodeling, intravascular oxygenation (SO2), and osteogenesis; laser speckle contrast (LSC) imaging to assess concomitant changes in blood flow and vascular maturity; and micro-computed tomography (μCT) to validate volumetric changes in calvarial bone. We found that angiogenic evolution was tightly coupled with calvarial bone regeneration and corresponded to distinct phases of bone healing, such as injury, hematoma formation, revascularization, and remodeling. The first three phases occurred during the initial two weeks of bone healing and were characterized by significant in vivo changes in vascular morphology, blood flow, oxygenation, and maturity. Overall, angiogenic evolution preceded osteogenesis, which only plateaued toward the end of bone healing (i.e., four weeks). Collectively, these data indicate the crucial role of angiogenic evolution in osteogenesis. We believe that such multimodality imaging approaches have the potential to inform the design of more efficacious tissue-engineering calvarial defect treatments.
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Affiliation(s)
- Yunke Ren
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xinying Chu
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Janaka Senarathna
- Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Ave, 217 Traylor Bldg, Baltimore, MD, 21205, USA
- Kavli Neuroscience Discovery Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Akanksha Bhargava
- Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Ave, 217 Traylor Bldg, Baltimore, MD, 21205, USA
| | - Warren L Grayson
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Materials Science and Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD, USA
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD, USA
| | - Arvind P Pathak
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Ave, 217 Traylor Bldg, Baltimore, MD, 21205, USA.
- The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Electrical Engineering, Johns Hopkins University, Baltimore, MD, USA.
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD, USA.
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9
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Zhao J, Zhou C, Xiao Y, Zhang K, Zhang Q, Xia L, Jiang B, Jiang C, Ming W, Zhang H, Long H, Liang W. Oxygen generating biomaterials at the forefront of regenerative medicine: advances in bone regeneration. Front Bioeng Biotechnol 2024; 12:1292171. [PMID: 38282892 PMCID: PMC10811251 DOI: 10.3389/fbioe.2024.1292171] [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] [Received: 09/11/2023] [Accepted: 01/02/2024] [Indexed: 01/30/2024] Open
Abstract
Globally, an annual count of more than two million bone transplants is conducted, with conventional treatments, including metallic implants and bone grafts, exhibiting certain limitations. In recent years, there have been significant advancements in the field of bone regeneration. Oxygen tension regulates cellular behavior, which in turn affects tissue regeneration through metabolic programming. Biomaterials with oxygen release capabilities enhance therapeutic effectiveness and reduce tissue damage from hypoxia. However, precise control over oxygen release is a significant technical challenge, despite its potential to support cellular viability and differentiation. The matrices often used to repair large-size bone defects do not supply enough oxygen to the stem cells being used in the regeneration process. Hypoxia-induced necrosis primarily occurs in the central regions of large matrices due to inadequate provision of oxygen and nutrients by the surrounding vasculature of the host tissues. Oxygen generating biomaterials (OGBs) are becoming increasingly significant in enhancing our capacity to facilitate the bone regeneration, thereby addressing the challenges posed by hypoxia or inadequate vascularization. Herein, we discussed the key role of oxygen in bone regeneration, various oxygen source materials and their mechanism of oxygen release, the fabrication techniques employed for oxygen-releasing matrices, and novel emerging approaches for oxygen delivery that hold promise for their potential application in the field of bone regeneration.
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Affiliation(s)
- Jiayi Zhao
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Chao Zhou
- Department of Orthopedics, Zhoushan Guanghua Hospital, Zhoushan, China
| | - Yang Xiao
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Kunyan Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Qiang Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Linying Xia
- Medical Research Center, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Bo Jiang
- Rehabilitation Department, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Chanyi Jiang
- Department of Pharmacy, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Wenyi Ming
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Hengjian Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Hengguo Long
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Wenqing Liang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
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10
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Pan Q, Zhang P, Xue F, Zhang J, Fan Z, Chang Z, Liang Z, Zhou G, Ren W. Subcutaneously Engineered Decalcified Bone Matrix Xenografts Promote Bone Repair by Regulating the Immune Microenvironment, Prevascularization, and Stem Cell Homing. ACS Biomater Sci Eng 2024; 10:515-524. [PMID: 38150512 DOI: 10.1021/acsbiomaterials.3c01331] [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] [Indexed: 12/29/2023]
Abstract
Immunoregulatory and vascularized microenvironments play an important role in bone regeneration; however, the precise regulation for vascularization and inflammatory reactions remains elusive during bone repair. In this study, by means of subcutaneous preimplantation, we successfully constructed demineralized bone matrix (DBM) grafts with immunoregulatory and vascularized microenvironments. According to the current results, at the early time points (days 1 and 3), subcutaneously implanted DBM grafts recruited a large number of pro-inflammatory M1 macrophages with positive expression of CD68 and iNOS, while at the later time points (days 7 and 14), these inflammatory cells gradually subsided, accompanying increased presence of anti-inflammatory M2 macrophages with positive expression of CD206 and Arg-1, indicating a gradually enhanced anti-inflammatory microenvironment. At the same time, the gradually increased angiogenesis was observed in the DBM grafts with implantation time. In addition, the positive cells of CD105, CD73, and CD90 were observed in the inner region of the DBM grafts, implying the homing of mesenchymal stem cells. The repair results of cranial bone defects in a rat model further confirmed that the subcutaneous DBM xenografts at 7 days significantly improved bone regeneration. In summary, we developed a simple and novel strategy for bone regeneration mediated by anti-inflammatory microenvironment, prevascularization, and endogenous stem cell homing.
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Affiliation(s)
- Qingqing Pan
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Pei Zhang
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Fei Xue
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Jingxuan Zhang
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Zhenlin Fan
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Zhanyu Chang
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Zhuo Liang
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Wenjie Ren
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang 453003, China
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11
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Altunbek M, Gezek M, Buck P, Camci-Unal G. Development of Human-Derived Photocrosslinkable Gelatin Hydrogels for Tissue Engineering. Biomacromolecules 2024; 25:165-176. [PMID: 38101806 PMCID: PMC11421863 DOI: 10.1021/acs.biomac.3c00894] [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: 12/17/2023]
Abstract
Hydrogels are often used as biomimetic matrices for tissue regeneration. The source of the hydrogel is of utmost importance, as it affects the physicochemical characteristics and must be carefully selected to stimulate specific cell behaviors. Naturally derived polymeric biomaterials have inherent biological moieties, such as cell binding and protease cleavage sites, and thus can provide a suitable microenvironment for cells. Human-derived matrices can mitigate potential risks associated with the immune response and disease transmission from animal-derived biomaterials. In this article, we developed glycidyl methacrylate-modified human-derived gelatin (hGelGMA) hydrogels for use in tissue engineering applications. By adjusting the glycidyl methacrylate concentration in the reaction mixture, we synthesized hGelGMA with low, medium, and high degrees of modification referred to as hGelGMA-L, hGelGMA-M, and hGelGMA-H, respectively. The amount of polymeric networks in the hydrogels was increased proportionally with the degree of modification. This change has resulted in a decreasing trend in pore size, porosity, and consequent swelling ratio. Similarly, increasing the polymer concentration also exhibited slower enzymatic degradation. On the other hand, increasing the polymer concentration led to an improvement in mechanical properties, where the compressive moduli of hGelGMA-L, hGelGMA-M, and hGelGMA-H hydrogels have changed at 2.9 ± 1.0, 13.7 ± 0.9, and 26.4 ± 2.5 kPa, respectively. The cytocompatibility of hGelGMA was assessed by 3D encapsulation of human-derived cells, including human dermal fibroblasts (HDFs) and human mesenchymal stem cells (hMSCs), in vitro. Regardless of the degree of glycidyl methacrylate modification, the hGelGMA hydrogels preserved the viability of encapsulated cells and supported their growth and proliferation. HDF cells showed a higher metabolic activity in hGelGMA-H, while MSCs exhibited an increased metabolic activity when they were encapsulated in hGelGMA-M or hGelGMA-H. These results showed that photocrosslinkable human-derived gelatin-based hydrogels can be synthesized and their physical properties can be distinctly fine-tuned to different extents as a function of their degrees of modification depending on the needs of the target tissue. Due to its promising physical and biological properties, it is anticipated that hGelGMA can be utilized in a wide spectrum of tissue engineering applications.
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Affiliation(s)
- Mine Altunbek
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Mert Gezek
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
- Biomedical Engineering and Biotechnology Program, University of Massachusetts Lowell, One University Avenue, Lowell, MA 01854, USA
| | - Paige Buck
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
- Biomedical Engineering and Biotechnology Program, University of Massachusetts Lowell, One University Avenue, Lowell, MA 01854, USA
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
- Department of Surgery, University of Massachusetts Medical School, Worcester, MA 01605, USA
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12
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Huang H, Karanth SS, Guan Y, Freeman S, Soron R, Godovich DS, Guan J, Ye K, Jin S. Oxygenated Scaffolds for Pancreatic Endocrine Differentiation from Induced Pluripotent Stem Cells. Adv Healthc Mater 2024; 13:e2302275. [PMID: 37885129 DOI: 10.1002/adhm.202302275] [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: 07/17/2023] [Revised: 10/06/2023] [Indexed: 10/28/2023]
Abstract
A 3D microenvironment is known to endorse pancreatic islet development from human induced pluripotent stem cells (iPSCs). However, oxygen supply becomes a limiting factor in a scaffold culture. In this study, oxygen-releasing biomaterials are fabricated and an oxygenated scaffold culture platform is developed to offer a better oxygen supply during 3D iPSC pancreatic differentiation. It is found that the oxygenation does not alter the scaffold's mechanical properties. The in situ oxygenation improves oxygen tension within the scaffolds. The unique 3D differentiation system enables the generation of islet organoids with enhanced expression of islet signature genes and proteins. Additionally, it is discovered that the oxygenation at the early stage of differentiation has more profound impacts on islet development from iPSCs. More C-peptide+ /MAFA+ β and glucagon+ /MAFB+ α cells formed in the iPSC-derived islet organoids generated under oxygenated conditions, suggesting enhanced maturation of the organoids. Furthermore, the oxygenated 3D cultures improve islet organoids' sensitivity to glucose for insulin secretion. It is herein demonstrated that the oxygenated scaffold culture empowers iPSC islet differentiation to generate clinically relevant tissues for diabetes research and treatment.
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Affiliation(s)
- Hui Huang
- Department of Biomedical Engineering, Thomas J. Watson College of Engineering and Applied Sciences, State University of New York (SUNY) at Binghamton, New York, 13902, USA
| | - Soujanya S Karanth
- Department of Biomedical Engineering, Thomas J. Watson College of Engineering and Applied Sciences, State University of New York (SUNY) at Binghamton, New York, 13902, USA
| | - Ya Guan
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Sebastian Freeman
- Department of Biomedical Engineering, Thomas J. Watson College of Engineering and Applied Sciences, State University of New York (SUNY) at Binghamton, New York, 13902, USA
| | - Ryan Soron
- Department of Biomedical Engineering, Thomas J. Watson College of Engineering and Applied Sciences, State University of New York (SUNY) at Binghamton, New York, 13902, USA
| | - David S Godovich
- Department of Biomedical Engineering, Thomas J. Watson College of Engineering and Applied Sciences, State University of New York (SUNY) at Binghamton, New York, 13902, USA
| | - Jianjun Guan
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Kaiming Ye
- Department of Biomedical Engineering, Thomas J. Watson College of Engineering and Applied Sciences, State University of New York (SUNY) at Binghamton, New York, 13902, USA
- Center of Biomanufacturing for Regenerative Medicine, State University of New York (SUNY) at Binghamton, New York, 13902, USA
| | - Sha Jin
- Department of Biomedical Engineering, Thomas J. Watson College of Engineering and Applied Sciences, State University of New York (SUNY) at Binghamton, New York, 13902, USA
- Center of Biomanufacturing for Regenerative Medicine, State University of New York (SUNY) at Binghamton, New York, 13902, USA
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13
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Waris TS, Shah STA, Mehmood A, Mushtaq A, Zehra M, Zulfiqar S, Andleeb A, Jabbar F, Anjum MA, Anwar Chaudhry A, Rehman IU, Yar M. Chitosan-sodium percarbonate-based hydrogels with sustained oxygen release potential stimulated angiogenesis and accelerated wound healing. J Biomed Mater Res B Appl Biomater 2024; 112:e35344. [PMID: 37942693 DOI: 10.1002/jbm.b.35344] [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: 03/20/2023] [Revised: 09/28/2023] [Accepted: 10/14/2023] [Indexed: 11/10/2023]
Abstract
The prolonged hypoxic conditions hinder chronic wounds from healing and lead to severe conditions such as delayed re-epithelialization and enhanced risk of infection. Multifunctional wound dressings are highly required to address the challenges of chronic wounds. Herein, we report polyurethane-coated sodium per carbonate-loaded chitosan hydrogel (CSPUO2 ) as a multifunctional dressing. The hydrogels (Control, CSPU, and CSPUO2 ) were prepared by freeze gelation method and the developed hydrogels showed high porosity, good absorption capacity, and adequate biodegradability. The release of oxygen from the CSPUO2 hydrogel was confirmed by the increase in pH and a sustained oxygen release was observed over the period of 21 days, due to polyurethane (CSPU) coating. The CSPUO2 hydrogel exhibited around 2-fold increased angiogenic potential in CAM assay when compared with Control and CSPU dressing. CSPUO2 also showed good level of antibacterial efficacy against E. coli and S. aureus. In a full-thickness rat wound model, CSPUO2 hydrogel considerably accelerated wound healing with exceptional re-epithelialization granulation tissue formation less inflammatory cells and improved skin architecture highlighting the tremendous therapeutic potential of this hydrogel when compared with control and CSPU to treat chronic diabetic and burn wounds.
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Affiliation(s)
- Tayyba Sher Waris
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | | | - Azra Mehmood
- Centre for Excellence in Molecular Biology, University of the Punjab, Quaid-i-Azam Campus, Lahore, Pakistan
| | - Afaq Mushtaq
- Centre for Excellence in Molecular Biology, University of the Punjab, Quaid-i-Azam Campus, Lahore, Pakistan
| | - Mubashra Zehra
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Saima Zulfiqar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Anisa Andleeb
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Faiza Jabbar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Muhammad Awais Anjum
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Ihtesham Ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
- School of Medicine, University of Central Lancashire, Preston, UK
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
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14
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Bello SA, Cruz-Lebrón J, Rodríguez-Rivera OA, Nicolau E. Bioactive Scaffolds as a Promising Alternative for Enhancing Critical-Size Bone Defect Regeneration in the Craniomaxillofacial Region. ACS APPLIED BIO MATERIALS 2023; 6:4465-4503. [PMID: 37877225 DOI: 10.1021/acsabm.3c00432] [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] [Indexed: 10/26/2023]
Abstract
Reconstruction of critical-size bone defects (CSDs) in the craniomaxillofacial (CMF) region remains challenging. Scaffold-based bone-engineered constructs have been proposed as an alternative to the classical treatments made with autografts and allografts. Scaffolds, a key component of engineered constructs, have been traditionally viewed as biologically passive temporary replacements of deficient bone lacking intrinsic cues to promote osteogenesis. Nowadays, scaffolds are functionalized, giving rise to bioactive scaffolds promoting bone regeneration more effectively than conventional counterparts. This review focuses on the three approaches most used to bioactivate scaffolds: (1) conferring microarchitectural designs or surface nanotopography; (2) loading bioactive molecules; and (3) seeding stem cells on scaffolds, providing relevant examples of in vivo (preclinical and clinical) studies where these methods are employed to enhance CSDs healing in the CMF region. From these, adding bioactive molecules (specifically bone morphogenetic proteins or BMPs) to scaffolds has been the most explored to bioactivate scaffolds. Nevertheless, the downsides of grafting BMP-loaded scaffolds in patients have limited its successful translation into clinics. Despite these drawbacks, scaffolds containing safer, cheaper, and more effective bioactive molecules, combined with stem cells and topographical cues, remain a promising alternative for clinical use to treat CSDs in the CMF complex replacing autografts and allografts.
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Affiliation(s)
- Samir A Bello
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, San Juan, Puerto Rico 00931, United States
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce De León Ave, Suite 1-7, San Juan, Puerto Rico 00926, United States
| | - Junellie Cruz-Lebrón
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, San Juan, Puerto Rico 00931, United States
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce De León Ave, Suite 1-7, San Juan, Puerto Rico 00926, United States
| | - Osvaldo A Rodríguez-Rivera
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, San Juan, Puerto Rico 00931, United States
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce De León Ave, Suite 1-7, San Juan, Puerto Rico 00926, United States
| | - Eduardo Nicolau
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, San Juan, Puerto Rico 00931, United States
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce De León Ave, Suite 1-7, San Juan, Puerto Rico 00926, United States
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15
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Singh S, Zhou Y, Farris AL, Whitehead EC, Nyberg EL, O'Sullivan AN, Zhang NY, Rindone AN, Achebe CC, Zbijewski W, Grundy W, Garlick D, Jackson ND, Kraitchman D, Izzi JM, Lopez J, Grant MP, Grayson WL. Geometric Mismatch Promotes Anatomic Repair in Periorbital Bony Defects in Skeletally Mature Yucatan Minipigs. Adv Healthc Mater 2023; 12:e2301944. [PMID: 37565378 PMCID: PMC10840722 DOI: 10.1002/adhm.202301944] [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: 07/03/2023] [Revised: 08/04/2023] [Indexed: 08/12/2023]
Abstract
Porous tissue-engineered 3D-printed scaffolds are a compelling alternative to autografts for the treatment of large periorbital bone defects. Matching the defect-specific geometry has long been considered an optimal strategy to restore pre-injury anatomy. However, studies in large animal models have revealed that biomaterial-induced bone formation largely occurs around the scaffold periphery. Such ectopic bone formation in the periorbital region can affect vision and cause disfigurement. To enhance anatomic reconstruction, geometric mismatches are introduced in the scaffolds used to treat full thickness zygomatic defects created bilaterally in adult Yucatan minipigs. 3D-printed, anatomically-mirrored scaffolds are used in combination with autologous stromal vascular fraction of cells (SVF) for treatment. An advanced image-registration workflow is developed to quantify the post-surgical geometric mismatch and correlate it with the spatial pattern of the regenerating bone. Osteoconductive bone growth on the dorsal and ventral aspect of the defect enhances scaffold integration with the native bone while medio-lateral bone growth leads to failure of the scaffolds to integrate. A strong positive correlation is found between geometric mismatch and orthotopic bone deposition at the defect site. The data suggest that strategic mismatch >20% could improve bone scaffold design to promote enhanced regeneration, osseointegration, and long-term scaffold survivability.
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Affiliation(s)
- Srujan Singh
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Yuxiao Zhou
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Ashley L Farris
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Emma C Whitehead
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Ethan L Nyberg
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Aine N O'Sullivan
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Nicholas Y Zhang
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Alexandra N Rindone
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Chukwuebuka C Achebe
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Wojciech Zbijewski
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Will Grundy
- StageBio Company, Mount Jackson, VA, 22842, USA
| | | | | | - Dara Kraitchman
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Jessica M Izzi
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Joseph Lopez
- Pediatric Plastic and Reconstructive Surgery, Pediatric Head and Neck Surgery, AdventHealth for Children, Orlando, FL, 32803, USA
| | - Michael P Grant
- Department of Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Plastic and Reconstructive Surgery, R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Warren L Grayson
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD, 21218, USA
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16
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Tilton M, Camilleri ET, Astudillo Potes MD, Gaihre B, Liu X, Lucien F, Elder BD, Lu L. Visible light-induced 3D bioprinted injectable scaffold for minimally invasive tissue regeneration. BIOMATERIALS ADVANCES 2023; 153:213539. [PMID: 37429047 PMCID: PMC10528590 DOI: 10.1016/j.bioadv.2023.213539] [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: 03/31/2023] [Revised: 06/20/2023] [Accepted: 06/25/2023] [Indexed: 07/12/2023]
Abstract
Pre-formed hydrogel scaffolds have emerged as favorable vehicles for tissue regeneration, promoting minimally invasive treatment of native tissue. However, due to the high degree of swelling and inherently poor mechanical properties, development of complex structural hydrogel scaffolds at different dimensional scales has been a continuous challenge. Herein, we take a novel approach at the intersections of engineering design and bio-ink chemistry to develop injectable pre-formed structural hydrogel scaffolds fabricated via visible light (VL) induced digital light processing (DLP). In this study, we first determined the minimum concentration of poly(ethylene glycol) diacrylate (PEGDA) to be added to the gelatin methacrylate (GelMA) bio-ink in order to achieve scalable and high printing-fidelity with desired cell adhesion, viability, spreading, and osteogenic differentiation characteristics. Despite the advantages of hybrid GelMA-PEGDA bio-ink in improving scalability and printing-fidelity, compressibility, shape-recovery, and injectability of the 3D bioprinted scaffolds were compromised. To restore these needed characteristics for minimally invasive tissue regeneration applications, we performed topological optimization to design highly compressible and injectable pre-formed (i.e., 3D bioprinted) microarchitectural scaffolds. The designed injectable pre-formed microarchitectural scaffolds showed a great capacity to retain the viability of the encapsulated cells (>72 % after 10 cycles of injection). Lastly, ex ovo chicken chorioallantoic membrane (CAM) studies revealed that the optimized injectable pre-formed hybrid hydrogel scaffold is biocompatible and supports angiogenic growth.
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Affiliation(s)
- Maryam Tilton
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA.
| | - Emily T Camilleri
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Maria D Astudillo Potes
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Bipin Gaihre
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Xifeng Liu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Fabrice Lucien
- Department of Urology, Mayo Clinic, Rochester, MN 55905, USA
| | - Benjamin D Elder
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA; Department of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA.
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17
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Li X, Xu M, Geng Z, Xu X, Han X, Chen L, Ji P, Liu Y. Novel pH-Responsive CaO 2@ZIF-67-HA-ADH Coating That Efficiently Enhances the Antimicrobial, Osteogenic, and Angiogenic Properties of Titanium Implants. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42965-42980. [PMID: 37656022 DOI: 10.1021/acsami.3c08233] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Titanium-based implants often lead to premature implant failure due to the lack of antimicrobial, osteogenic, and angiogenic properties. To this end, a new strategy was developed to fabricate CaO2@ZIF-67-HA-ADH coating on titanium surfaces by combining calcium peroxide (CaO2) nanoparticles, zeolite imidazolate framework-67 (ZIF-67), and the chemical coupling hyaluronic acid-adipic acid dihydrazide (HA-ADH). We characterized CaO2@ZIF-67-HA-ADH with scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma-atomic emission spectrometry (ICP-AES). The results demonstrated that CaO2@ZIF-67-HA-ADH was pH-sensitive and decomposed rapidly under acidic conditions, and it released inclusions slowly under neutral conditions. Antibacterial experiments showed that the CaO2@ZIF-67-HA-ADH coating had excellent antibacterial properties and effectively killed methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa (PAO-1). Cell experiments revealed that the CaO2@ZIF-67-HA-ADH coating promoted pro-osteoblast adhesion, proliferation, and differentiation and also promoted the migration and angiogenesis of human umbilical vein endothelial cells (HUVECs), exhibiting excellent osteogenic and angiogenic properties. In in vivo animal implantation experiments, the CaO2@ZIF-67-HA-ADH coating exhibited strong antimicrobial activity early after implantation and excellent osseointegration later after implantation. In conclusion, the pH-responsive CaO2@ZIF-67-HA-ADH coating conferred excellent antibacterial, osteogenic, and angiogenic properties to titanium implants, which effectively enhanced osseointegration of the implants and prevented bacterial infection; the coating shows promise for use in the treatment of bone defects.
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Affiliation(s)
- Xinlin Li
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Mengfei Xu
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Zhaoli Geng
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Xinyi Xu
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Xu Han
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Lin Chen
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Ping Ji
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Yi Liu
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
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18
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Jafari A, Behjat E, Malektaj H, Mobini F. Alignment behavior of nerve, vascular, muscle, and intestine cells in two- and three-dimensional strategies. WIREs Mech Dis 2023; 15:e1620. [PMID: 37392045 DOI: 10.1002/wsbm.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 02/28/2023] [Accepted: 05/23/2023] [Indexed: 07/02/2023]
Abstract
By harnessing structural hierarchical insights, plausibly simulate better ones imagination to figure out the best choice of methods for reaching out the unprecedented developments of the tissue engineering products as a next level. Constructing a functional tissue that incorporates two-dimensional (2D) or higher dimensions requires overcoming technological or biological limitations in order to orchestrate the structural compilation of one-dimensional and 2D sheets (microstructures) simultaneously (in situ). This approach enables the creation of a layered structure that can be referred to as an ensemble of layers or, after several days of maturation, a direct or indirect joining of layers. Here, we have avoided providing a detailed methodological description of three-dimensional and 2D strategies, except for a few interesting examples that highlight the higher alignment of cells and emphasize rarely remembered facts associated with vascular, peripheral nerve, muscle, and intestine tissues. The effective directionality of cells in conjunction with geometric cues (in the range of micrometers) is well known to affect a variety of cell behaviors. The curvature of a cell's environment is one of the factors that influence the formation of patterns within tissues. The text will cover cell types containing some level of stemness, which will be followed by their consequences for tissue formation. Other important considerations pertain to cytoskeleton traction forces, cell organelle positioning, and cell migration. An overview of cell alignment along with several pivotal molecular and cellular level concepts, such as mechanotransduction, chirality, and curvature of structure effects on cell alignments will be presented. The mechanotransduction term will be used here in the context of the sensing capability that cells show as a result of force-induced changes either at the conformational or the organizational levels, a capability that allows us to modify cell fate by triggering downstream signaling pathways. A discussion of the cells' cytoskeleton and of the stress fibers involvement in altering the cell's circumferential constitution behavior (alignment) based on exposed scaffold radius will be provided. Curvatures with size similarities in the range of cell sizes cause the cell's behavior to act as if it was in an in vivo tissue environment. The revision of the literature, patents, and clinical trials performed for the present study shows that there is a clear need for translational research through the implementation of clinical trial platforms that address the tissue engineering possibilities raised in the current revision. This article is categorized under: Infectious Diseases > Biomedical Engineering Neurological Diseases > Biomedical Engineering Cardiovascular Diseases > Biomedical Engineering.
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Affiliation(s)
- Amir Jafari
- Laboratório de Neurofisiologia, Instituto de Biologia Roberto Alcantara Gomes, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Erfan Behjat
- Department of Biomaterials, School of Metallurgy & Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Haniyeh Malektaj
- Department of Materials and Production, Aalborg University, Aalborg, Denmark
| | - Faezeh Mobini
- Molecular Simulation Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
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19
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Wang Z, Chen T, Li X, Guo B, Liu P, Zhu Z, Xu RX. Oxygen-releasing biomaterials for regenerative medicine. J Mater Chem B 2023; 11:7300-7320. [PMID: 37427691 DOI: 10.1039/d3tb00670k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Oxygen is critical to the survival, function and fate of mammalian cells. Oxygen tension controls cellular behavior through metabolic programming, which in turn controls tissue regeneration. A variety of biomaterials with oxygen-releasing capabilities have been developed to provide oxygen supply to ensure cell survival and differentiation for therapeutic efficacy, and to prevent hypoxia-induced tissue damage and cell death. However, controlling the oxygen release with spatial and temporal accuracy is still technically challenging. In this review, we provide a comprehensive overview of organic and inorganic materials available as oxygen sources, including hemoglobin-based oxygen carriers (HBOCs), perfluorocarbons (PFCs), photosynthetic organisms, solid and liquid peroxides, and some of the latest materials such as metal-organic frameworks (MOFs). Additionally, we introduce the corresponding carrier materials and the oxygen production methods and present state-of-the-art applications and breakthroughs of oxygen-releasing materials. Furthermore, we discuss the current challenges and the future perspectives in the field. After reviewing the recent progress and the future perspectives of oxygen-releasing materials, we predict that smart material systems that combine precise detection of oxygenation and adaptive control of oxygen delivery will be the future trend for oxygen-releasing materials in regenerative medicine.
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Affiliation(s)
- Zhaojun Wang
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
| | - Tianao Chen
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xin Li
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
| | - Buyun Guo
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng Liu
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
| | - Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ronald X Xu
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
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20
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Augustine R, Camci-Unal G. Scaffolds with high oxygen content support osteogenic cell survival under hypoxia. Biomater Sci 2023; 11:5560-5575. [PMID: 37401619 PMCID: PMC10533211 DOI: 10.1039/d3bm00650f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Regeneration of large bone defects is a significant clinical challenge with variable success, but tissue engineering strategies are promising for rapid and effective bone regeneration. Maintaining an adequate oxygen level within implanted scaffolds is a major obstacle in bone tissue engineering. We developed a new oxygen-generating scaffold by electrospinning polycaprolactone with calcium peroxide (CaO2) nanocuboids (CPNCs) and characterized the physical, chemical, and biological properties of the resulting composites. Our scaffolds are highly porous and composed of submicron fibers that include CPNC as confirmed with XRD and FTIR analyses. Scaffolds containing CPNC provided controlled oxygen release for 14-days and supported cell proliferation while protecting preosteoblasts from hypoxia-induced cell death. Oxygen-generating scaffolds also facilitated bone mimetic defect contraction in vitro. The results suggest that our approach can be used to develop tissue-engineered products which target bone defects.
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Affiliation(s)
- Robin Augustine
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, USA.
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, USA.
- Department of Surgery, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA
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21
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Augustine R, Nikolopoulos VK, Camci-Unal G. Hydrogel-Impregnated Self-Oxygenating Electrospun Scaffolds for Bone Tissue Engineering. Bioengineering (Basel) 2023; 10:854. [PMID: 37508881 PMCID: PMC10376476 DOI: 10.3390/bioengineering10070854] [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: 05/27/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Bone defects resulting from trauma, disease, or aging present significant challenges in the clinic. Although biomaterial scaffolds for bone-tissue engineering have shown promising results, challenges remain, including the need for adequate mechanical strength and suitable bioactive agents within scaffolds to promote bone formation. Oxygen is a critical factor for successful bone formation, and low oxygen tension inhibits it. In this study, we developed gelatin methacryloyl (GelMA) hydrogel-impregnated electrospun polycaprolactone (PCL) scaffolds that can release oxygen over 3 weeks. We investigated the potential of composite scaffolds for cell survival in bone-tissue engineering. Our results showed that the addition of an increased amount of CaO2 nanoparticles to the PCL scaffolds significantly increased oxygen generation, which was modulated by GelMA impregnation. Moreover, the resulting scaffolds showed improved cytocompatibility, pre-osteoblast adhesion, and proliferation under hypoxic conditions. This finding is particularly relevant since hypoxia is a prevalent feature in various bone diseases. In addition to providing oxygen, CaO2 nanoparticles also act as reinforcing agents improving the mechanical property of the scaffolds, while the incorporation of GelMA enhances cell adhesion and proliferation properties. Overall, our newly developed self-oxygenating composite biomaterials are promising scaffolds for bone-tissue engineering applications.
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Affiliation(s)
- Robin Augustine
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA 01854, USA; (R.A.); (V.K.N.)
| | - Vasilios K. Nikolopoulos
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA 01854, USA; (R.A.); (V.K.N.)
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA 01854, USA; (R.A.); (V.K.N.)
- Department of Surgery, University of Massachusetts Medical School, Worcester, MA 01605, USA
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22
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Rafique M, Ali O, Shafiq M, Yao M, Wang K, Ijima H, Kong D, Ikeda M. Insight on Oxygen-Supplying Biomaterials Used to Enhance Cell Survival, Retention, and Engraftment for Tissue Repair. Biomedicines 2023; 11:1592. [PMID: 37371687 DOI: 10.3390/biomedicines11061592] [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: 04/02/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Oxygen is one of the essential requirements for cell survival, retention, and proliferation. The field of regenerative medicine and tissue engineering (TE) has realized considerable achievements for the regeneration of tissues. However, tissue regeneration still lacks the full functionality of solid organ implantations; limited cell survival and retention due to oxidative stress and hypoxia in the deeper parts of tissues remains a perpetual challenge. Especially prior to neovascularization, hypoxia is a major limiting factor, since oxygen delivery becomes crucial for cell survival throughout the tissue-engineered construct. Oxygen diffusion is generally limited in the range 100-200 μm of the thickness of a scaffold, and the cells located beyond this distance face oxygen deprivation, which ultimately leads to hypoxia. Furthermore, before achieving functional anastomosis, implanted tissues will be depleted of oxygen, resulting in hypoxia (<5% dissolved oxygen) followed by anoxic (<0.5% dissolved oxygen) microenvironments. Different types of approaches have been adopted to establish a sustained oxygen supply both in vitro and in vivo. In this review, we have summarized the recent developments in oxygen-generating and/or releasing biomaterials for enhancing cell survival in vitro, as well as for promoting soft and hard tissue repair, including skin, heart, nerve, pancreas, muscle, and bone tissues in vivo. In addition, redox-scavenging biomaterials and oxygenated scaffolds have also been highlighted. The surveyed results have shown significant promise in oxygen-producing biomaterials and oxygen carriers for enhancing cell functionality for regenerative medicine and TE applications. Taken together, this review provides a detailed overview of newer approaches and technologies for oxygen production, as well as their applications for bio-related disciplines.
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Affiliation(s)
- Muhammad Rafique
- Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Onaza Ali
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Muhammad Shafiq
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, Fukuoka 819-0395, Japan
| | - Minghua Yao
- Department of Ultrasound, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201620, China
| | - Kai Wang
- Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Hiroyuki Ijima
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, Fukuoka 819-0395, Japan
| | - Deling Kong
- Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Masato Ikeda
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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23
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Hosseini FS, Abedini AA, Chen F, Whitfield T, Ude CC, Laurencin CT. Oxygen-Generating Biomaterials for Translational Bone Regenerative Engineering. ACS APPLIED MATERIALS & INTERFACES 2023; 15:50721-50741. [PMID: 36988393 DOI: 10.1021/acsami.2c20715] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Successful regeneration of critical-size defects remains one of the significant challenges in regenerative engineering. These large-scale bone defects are difficult to regenerate and are often reconstructed with matrices that do not provide adequate oxygen levels to stem cells involved in the regeneration process. Hypoxia-induced necrosis predominantly occurs in the center of large matrices since the host tissue's local vasculature fails to provide sufficient nutrients and oxygen. Indeed, utilizing oxygen-generating materials can overcome the central hypoxic region, induce tissue in-growth, and increase the quality of life for patients with extensive tissue damage. This article reviews recent advances in oxygen-generating biomaterials for translational bone regenerative engineering. We discussed different oxygen-releasing and delivery methods, fabrication methods for oxygen-releasing matrices, biology, oxygen's role in bone regeneration, and emerging new oxygen delivery methods that could potentially be used for bone regenerative engineering.
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Affiliation(s)
- Fatemeh S Hosseini
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut 06030, United States
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, Connecticut 06030, United States
- Department of Skeletal Biology and Regeneration, UConn Health, Farmington, Connecticut 06030, United States
- Department of Orthopedic Surgery, UConn Health, Farmington, Connecticut 06030, United States
| | - Amir Abbas Abedini
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut 06030, United States
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, Connecticut 06030, United States
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Feiyang Chen
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut 06030, United States
| | - Taraje Whitfield
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut 06030, United States
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, Connecticut 06030, United States
- Department of Skeletal Biology and Regeneration, UConn Health, Farmington, Connecticut 06030, United States
| | - Chinedu C Ude
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut 06030, United States
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, Connecticut 06030, United States
- Department of Orthopedic Surgery, UConn Health, Farmington, Connecticut 06030, United States
| | - Cato T Laurencin
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut 06030, United States
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, UConn Health, Farmington, Connecticut 06030, United States
- Department of Skeletal Biology and Regeneration, UConn Health, Farmington, Connecticut 06030, United States
- Department of Orthopedic Surgery, UConn Health, Farmington, Connecticut 06030, United States
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
- Department of Chemical and Bimolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
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24
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Nikolopoulos VK, Augustine R, Camci-Unal G. Harnessing the potential of oxygen-generating materials and their utilization in organ-specific delivery of oxygen. Biomater Sci 2023; 11:1567-1588. [PMID: 36688522 PMCID: PMC10015602 DOI: 10.1039/d2bm01329k] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The limited availability of transplantable organs hinders the success of patient treatment through organ transplantation. In addition, there are challenges with immune rejection and the risk of disease transmission when receiving organs from other individuals. Tissue engineering aims to overcome these challenges by generating functional three-dimensional (3D) tissue constructs. When developing tissues or organs of a particular shape, structure, and size as determined by the specific needs of the therapeutic intervention, a tissue specific oxygen supply to all parts of the tissue construct is an utmost requirement. Moreover, the lack of a functional vasculature in engineered tissues decreases cell survival upon implantation in the body. Oxygen-generating materials can alleviate this challenge in engineered tissue constructs by providing oxygen in a sustained and controlled manner. Oxygen-generating materials can be incorporated into 3D scaffolds allowing the cells to receive and utilize oxygen efficiently. In this review, we present an overview of the use of oxygen-generating materials in various tissue engineering applications in an organ specific manner as well as their potential use in the clinic.
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Affiliation(s)
- Vasilios K Nikolopoulos
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, USA.
| | - Robin Augustine
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, USA.
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, USA.
- Department of Surgery, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA
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25
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Sun H, Xu J, Wang Y, Shen S, Xu X, Zhang L, Jiang Q. Bone microenvironment regulative hydrogels with ROS scavenging and prolonged oxygen-generating for enhancing bone repair. Bioact Mater 2023; 24:477-496. [PMID: 36714330 PMCID: PMC9843284 DOI: 10.1016/j.bioactmat.2022.12.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 01/11/2023] Open
Abstract
Large bone defects resulting from fractures and disease are a major clinical challenge, being often unable to heal spontaneously by the body's repair mechanisms. Lines of evidence have shown that hypoxia-induced overproduction of ROS in bone defect region has a major impact on delaying bone regeneration. However, replenishing excess oxygen in a short time cause high oxygen tension that affect the activity of osteoblast precursor cells. Therefore, reasonably restoring the hypoxic condition of bone microenvironment is essential for facilitating bone repair. Herein, we designed ROS scavenging and responsive prolonged oxygen-generating hydrogels (CPP-L/GelMA) as a "bone microenvironment regulative hydrogel" to reverse the hypoxic microenvironment in bone defects region. CPP-L/GelMA hydrogels comprises an antioxidant enzyme catalase (CAT) and ROS-responsive oxygen-releasing nanoparticles (PFC@PLGA/PPS) co-loaded liposome (CCP-L) and GelMA hydrogels. Under hypoxic condition, CPP-L/GelMA can release CAT for degrading hydrogen peroxide to generate oxygen and be triggered by superfluous ROS to continuously release the oxygen for more than 2 weeks. The prolonged oxygen enriched microenvironment generated by CPP-L/GelMA hydrogel significantly enhanced angiogenesis and osteogenesis while inhibited osteoclastogenesis. Finally, CPP-L/GelMA showed excellent bone regeneration effect in a mice skull defect model through the Nrf2-BMAL1-autophagy pathway. Hence, CPP-L/GelMA, as a bone microenvironment regulative hydrogel for bone tissue respiration, can effectively scavenge ROS and provide prolonged oxygen supply according to the demand in bone defect region, possessing of great clinical therapeutic potential.
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Key Words
- Alizarin red staining, ARS
- Alkaline phosphatase, ALP
- Bone defect
- Bone marrow mesenchymal stem cells, BMSC
- Bovine serum albumin, BSA
- Brain and muscle arnt-like protein 1
- Brain and muscle arnt-like protein 1, BMAL1
- Catalase, CAT
- Fetal liver kinase-1, Flk-1
- Human umbilical vein endothelial cells, HUVEC
- Hypoxic microenvironment
- Liposome, Lip
- Microtubule-associated proteins light chain 3, LC3
- Nuclear factor (erythroid-derived 2)-like 2, NRF2
- Osteocalcin, OCN
- Osteopontin, OPN
- Perfluorocarbon, PFC
- Phosphate-buffered saline, PBS
- Poly (D, L-lactide-co-glycolide), PLGA
- Poly (propylene sulphide), PPS
- Prolonged oxygen generation
- Reactive oxygen species responsiveness
- Reactive oxygen species, ROS
- Receptor activator of nuclear factor-kappa B ligand, RANKL
- Runt-related transcription factor 2, RUNX2
- Short interfering RNA, siRNA
- Soy phosphatidylcholine, SPC
- Type I collagen, Col I
- Western blot, WB
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Affiliation(s)
- Han Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China,Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, PR China,Co-innovation Center of Neuroregeneration, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, PR China,Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, 185 Juqian Road, Changzhou, 213003, Jiangsu, PR China
| | - Juan Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China,Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, PR China,Co-innovation Center of Neuroregeneration, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, PR China
| | - Yangyufan Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China,Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, PR China,Co-innovation Center of Neuroregeneration, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, PR China
| | - Siyu Shen
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China,Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, PR China,Co-innovation Center of Neuroregeneration, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, PR China
| | - Xingquan Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China,Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, PR China,Co-innovation Center of Neuroregeneration, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, PR China,Corresponding author. State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - Lei Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China,Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, PR China,Co-innovation Center of Neuroregeneration, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, PR China,Corresponding author. State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - Qing Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China,Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, PR China,Co-innovation Center of Neuroregeneration, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, PR China,Corresponding author. State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
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26
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Suvarnapathaki S, Nguyen A, Goulopoulos A, Camci-Unal G. Oxygen-Generating Scaffolds for Cardiac Tissue Engineering Applications. ACS Biomater Sci Eng 2023; 9:409-426. [PMID: 36469567 PMCID: PMC11416866 DOI: 10.1021/acsbiomaterials.2c00853] [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: 12/12/2022]
Abstract
Homogeneous vascularization of implanted tissue constructs can extend to 5 weeks, during which cell death can occur due to inadequate availability of oxygen. Researchers are engineering biomaterials that generate and release oxygen in a regulated manner, in an effort to overcome this hurdle. A main limitation of the existing oxygen-generating biomaterials is the uncontrolled release of oxygen, which is ultimately detrimental to the cells. This study demonstrates the incorporation of calcium peroxide (CaO2) within a hydrophobic polymer, polycaprolactone (PCL), to yield composite scaffolds with controlled oxygen release kinetics sustained over 5 weeks. Oxygen-generating microparticles coencapsulated with cardiomyocytes in a gelatin-based hydrogel matrix can serve as model systems for cardiac tissue engineering. Specifically, the results reveal that the oxygen-generating microspheres significantly improve the scaffold mechanical strength ranging from 5 kPa to 35 kPa, have an average scaffold pore size of 50-100 μm, swelling ratios of 33.3-29.8%, and degradation with 10-49% remaining mass at the end of a 48 h accelerated enzymatic degradation. The oxygen-generating scaffolds demonstrate improvement in cell viability, proliferation, and metabolic activity compared to the negative control group when cultured under hypoxia. Additionally, the optimized oxygen-generating constructs display no cytotoxicity or apoptosis. These oxygen-generating scaffolds can possibly assist the in vivo translation of cardiac tissue constructs.
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Affiliation(s)
- Sanika Suvarnapathaki
- Biomedical Engineering and Biotechnology Program, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, United States
- Department of Chemical Engineering, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, United States
| | - Angelina Nguyen
- Department of Chemical Engineering, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, United States
| | - Anastasia Goulopoulos
- Department of Chemical Engineering, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, United States
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, United States
- Department of Surgery, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, Massachusetts 01605, United States
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27
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Aleemardani M, Solouk A, Akbari S, Moeini M. A hydrogel-fiber-hydrogel composite scaffold based on silk fibroin with the dual-delivery of oxygen and quercetin. Biotechnol Bioeng 2023; 120:297-311. [PMID: 36224726 DOI: 10.1002/bit.28259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 09/04/2022] [Accepted: 10/08/2022] [Indexed: 11/10/2022]
Abstract
Supplying sufficient oxygen within the scaffolds is one of the essential hindrances in tissue engineering that can be resolved by oxygen-generating biomaterials (OGBs). Two main issues related to OGBs are controlling oxygenation and reactive oxygen species (ROS). To address these concerns, we developed a composite scaffold entailing three layers (hydrogel-electrospun fibers-hydrogel) with antioxidant and antibacterial properties. The fibers, the middle layer, reinforced the composite structure, enhancing the mechanical strength from 4.27 ± 0.15 to 8.27 ± 0.25 kPa; also, this layer is made of calcium peroxide and silk fibroin (SF) through electrospinning, which enables oxygen delivery. The first and third layers are physical SF hydrogels to control oxygen release, containing quercetin (Q), a nonenzymatic antioxidant. This composite scaffold resulted in almost more than 40 mmHg of oxygen release for at least 13 days, and compared with similar studies is in a high range. Here, Q was used for the first time for an OGB to scavenge the possible ROS. Q delivery not only led to antioxidant activity but also stabilized oxygen release and enhanced cell viability. Based on the given results, this composite scaffold can be introduced as a safe and controllable oxygen supplier, which is promising for tissue engineering applications, particularly for bone.
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Affiliation(s)
- Mina Aleemardani
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, The University of Sheffield, Sheffield, UK
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Somaye Akbari
- Department of Textile Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mohammad Moeini
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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28
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Augustine R, Gezek M, Seray Bostanci N, Nguyen A, Camci-Unal G. Oxygen-Generating Scaffolds: One Step Closer to the Clinical Translation of Tissue Engineered Products. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2023; 455:140783. [PMID: 36644784 PMCID: PMC9835968 DOI: 10.1016/j.cej.2022.140783] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The lack of oxygen supply in engineered constructs has been an ongoing challenge for tissue engineering and regenerative medicine. Upon implantation of an engineered tissue, spontaneous blood vessel formation does not happen rapidly, therefore, there is typically a limited availability of oxygen in engineered biomaterials. Providing oxygen in large tissue-engineered constructs is a major challenge that hinders the development of clinically relevant engineered tissues. Similarly, maintaining adequate oxygen levels in cell-laden tissue engineered products during transportation and storage is another hurdle. There is an unmet demand for functional scaffolds that could actively produce and deliver oxygen, attainable by incorporating oxygen-generating materials. Recent approaches include encapsulation of oxygen-generating agents such as solid peroxides, liquid peroxides, and fluorinated substances in the scaffolds. Recent approaches to mitigate the adverse effects, as well as achieving a sustained and controlled release of oxygen, are discussed. Importance of oxygen-generating materials in various tissue engineering approaches such as ex vivo tissue engineering, in situ tissue engineering, and bioprinting are highlighted in detail. In addition, the existing challenges, possible solutions, and future strategies that aim to design clinically relevant multifunctional oxygen-generating biomaterials are provided in this review paper.
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Affiliation(s)
- Robin Augustine
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, United States
| | - Mert Gezek
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, United States
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, Massachusetts 01854, United States
| | - Nazli Seray Bostanci
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, United States
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, Massachusetts 01854, United States
| | - Angelina Nguyen
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, United States
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, Massachusetts 01854, United States
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts, Lowell, Massachusetts 01854, United States
- Department of Surgery, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
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29
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Bai Q, Zheng C, Sun N, Chen W, Gao Q, Liu J, Hu F, Zhou T, Zhang Y, Lu T. Oxygen-releasing hydrogels promote burn healing under hypoxic conditions. Acta Biomater 2022; 154:231-243. [PMID: 36210045 DOI: 10.1016/j.actbio.2022.09.077] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 12/14/2022]
Abstract
Hypoxic nonhealing wounds are a common complication in chronic patients, and chronic hypoxia is the main reason for delayed wound healing, so local wound oxygenation may be an effective way to address this problem. Here, we proposed a system consisting of oxygen-releasing microsphere (GC) and self-healing hydrogel (QGO). QGO/GC hydrogel could promote survival, migration and tube formation of human umbilical vein endothelial cells under hypoxic conditions. Moreover, QGO/GC hydrogels exhibited biocompatibility in vitro and in vivo. The hypoxic mouse burn model further confirmed that QGO/GC hydrogel could promote tissue repair by reducing inflammation (TNF-α and IL-1β), increasing angiogenesis (CD31, VEGF and α-SMA) and collagen deposition. This study provided an effective oxygen-releasing hydrogel that could offer a simple and effective method for the clinical treatment of chronic hypoxic wounds. STATEMENT OF SIGNIFICANCE: Burn injury is caused by various exogenous factors such as friction, cold, radiations, electricity, chemicals, hot surfaces or liquids. Severe burn can damage the entire skin layer, and the healing process is delayed due to an unbalanced inflammatory response, excessive reactive oxygen species, lack of angiogenesis (insufficient nutrient and oxygen availability), and susceptibility to infection. In the present study, we proposed an oxygen-releasing hydrogel (QGO/GC). QGO/GC hydrogel could promote survival, migration, and tube formation of human umbilical vein endothelial cells under hypoxic conditions. And QGO/GC hydrogels could promote tissue repair by reducing inflammation, increasing angiogenesis and collagen deposition. This work provided an effective oxygen-releasing hydrogel for the clinical management of chronic hypoxic wounds.
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Affiliation(s)
- Que Bai
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Caiyun Zheng
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Na Sun
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wenting Chen
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qian Gao
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jinxi Liu
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Fangfang Hu
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Tong Zhou
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Yanni Zhang
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Tingli Lu
- Key Laboratory of Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
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30
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Fabrication of functional and nano-biocomposite scaffolds using strontium-doped bredigite nanoparticles/polycaprolactone/poly lactic acid via 3D printing for bone regeneration. Int J Biol Macromol 2022; 219:1319-1336. [PMID: 36055598 DOI: 10.1016/j.ijbiomac.2022.08.136] [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] [Received: 06/01/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 11/22/2022]
Abstract
Bone tissue engineering is a field to manufacture scaffolds for bone defects that cannot repair without medical interventions. Ceramic nanoparticles such as bredigite have importance roles in bone regeneration. We synthesized a novel strontium (Sr) doped bredigite (Bre) nanoparticles (BreSr) and then developed new nanocomposite scaffolds using polycaprolactone (PCL), poly lactic acid (PLA) by the 3D-printing technique. Novel functional nanoparticles were synthesized and characterized using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS: map). The nanoparticles were uniformly distributed in the polymer matrix composites. The 3D- printed scaffolds were investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), attenuated total reflection-fourier transform infrared (ATR-FTIR), degradation rate porosity, mechanical tests, apatite formation and cell culture. Degradation rate and mechanical strength were increased in the PLA/PCL/Bre-5%Sr nanocopmposite scaffolds.. Hydroxyapatite crystals were also created on the scaffold surface in the bioactivity test. The scaffolds supported viability and proliferation of human osteoblasts. Gene expression and calcium deposition in the samples containing nanoparticles indicated statistical different than the scaffolds without nanoparticles. The nanocomposite scaffolds were implanted into the critical-sized calvarial defects in rat for 3 months. The scaffolds containing Bre-Sr ceramic nanoparticles exhibited the best potential to regenerate bone tissue.
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