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Sun L, Niu H, Wu Y, Dong S, Li X, Kim BY, Liu C, Ma Y, Jiang W, Yuan Y. Bio-integrated scaffold facilitates large bone regeneration dominated by endochondral ossification. Bioact Mater 2024; 35:208-227. [PMID: 38327823 PMCID: PMC10847751 DOI: 10.1016/j.bioactmat.2024.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/23/2023] [Accepted: 01/18/2024] [Indexed: 02/09/2024] Open
Abstract
Repair of large bone defects caused by severe trauma, non-union fractures, or tumor resection remains challenging because of limited regenerative ability. Typically, these defects heal through mixed routines, including intramembranous ossification (IMO) and endochondral ossification (ECO), with ECO considered more efficient. Current strategies to promote large bone healing via ECO are unstable and require high-dose growth factors or complex cell therapy that cause side effects and raise expense while providing only limited benefit. Herein, we report a bio-integrated scaffold capable of initiating an early hypoxia microenvironment with controllable release of low-dose recombinant bone morphogenetic protein-2 (rhBMP-2), aiming to induce ECO-dominated repair. Specifically, we apply a mesoporous structure to accelerate iron chelation, this promoting early chondrogenesis via deferoxamine (DFO)-induced hypoxia-inducible factor-1α (HIF-1α). Through the delicate segmentation of click-crosslinked PEGylated Poly (glycerol sebacate) (PEGS) layers, we achieve programmed release of low-dose rhBMP-2, which can facilitate cartilage-to-bone transformation while reducing side effect risks. We demonstrate this system can strengthen the ECO healing and convert mixed or mixed or IMO-guided routes to ECO-dominated approach in large-size models with clinical relevance. Collectively, these findings demonstrate a biomaterial-based strategy for driving ECO-dominated healing, paving a promising pave towards its clinical use in addressing large bone defects.
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Affiliation(s)
- Lili Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Haoyi Niu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yuqiong Wu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Shiyan Dong
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Xuefeng Li
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Betty Y.S. Kim
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yifan Ma
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Wen Jiang
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Yuan Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
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Liu H, Li K, Yi D, Ding Y, Gao Y, Zheng X. Deferoxamine-Loaded Chitosan-Based Hydrogel on Bone Implants Showing Enhanced Bond Strength and Pro-Angiogenic Effects. J Funct Biomater 2024; 15:112. [PMID: 38667569 PMCID: PMC11051205 DOI: 10.3390/jfb15040112] [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: 03/07/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Angiogenesis is vital for bone fracture healing and plays a significant role in the fate of orthopedic implants. The growth and maintenance of new blood vessels at the fracture site of patients is essential, which promotes the clinical outcome of plasma sprayed Ti (PST) coated orthopedic implants. In order to endow the PST coating with pro-angiogenic effects, deferoxamine-loaded chitosan-based hydrogel was fabricated on the coating surface. Polydopamine-modified chitosan (CS/PDA) hydrogel exhibited enhanced bonding strength to PST coatings as evidenced by scratch test. The deferoxamine-loaded CS/PDA (CS/PDA-DFO) exhibited a sustained drug-release property, and the cumulative concentration of released DFO reached 20.21 μg/mL on day 7. PST-CS/PDA with higher wettability and active group quantity enhanced the viability and adhesion characteristics of human umbilical vein endothelial cells (HUVECs) and upregulated the secretion level of nitric oxide and vascular endothelial growth factor. Moreover, the introduction of DFO in PST-CS/PDA further enhanced the pro-angiogenic effects. Above all, this study offers a novel approach for developing hydrogel coating on orthopedic implants showing enhanced bonding strength and pro-angiogenic effects.
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Affiliation(s)
- Huan Liu
- School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China;
| | - Kai Li
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; (D.Y.); (Y.D.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Deliang Yi
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; (D.Y.); (Y.D.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Yi Ding
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; (D.Y.); (Y.D.)
| | - Yanfeng Gao
- School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China;
| | - Xuebin Zheng
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; (D.Y.); (Y.D.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
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Baumgarten KM, Sandhurst ES, Sun H. Can Human Growth Hormone Accelerate Tendon and Ligament Injury Recovery? Sports Health 2024:19417381241245938. [PMID: 38618948 DOI: 10.1177/19417381241245938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024] Open
Abstract
BACKGROUND Studies involving human fibroblasts and use of human growth hormone (HGH) administration for injury recovery are limited. It is plausible that if the administration of HGH to human cells increased cellular proliferation and differentiation, then HGH might be able to assist in accelerating recovery from injury. HYPOTHESIS HGH will increase proliferation and differentiation of human tendon and ligament fibroblasts in vitro based on both a single-dose and a sustained-dose model of HGH administration. STUDY DESIGN Basic science cellular study. METHODS Human tendon and ligament tissue were harvested from 24 patients. Tissue samples were digested with type I collagenase to isolate the target cell types. HGH was administered directly to isolated cells at doses ranging from 100 pg/mL to 10 µg/mL, either in a single-dose or a sustained-dose model. Proliferation was analyzed at days 4 and 7. Differentiation of ligament and tendon fibroblasts was assessed at day 14. RESULTS Administration of a single-dose of HGH to both cell types demonstrated similar or inferior cellular proliferation compared with controls after 7 days. For the sustained-dosing model of ligament fibroblasts, only the 100 ng/mL concentration demonstrated at least statistically similar or improved proliferation compared with controls. When examining the 100 ng/mL HGH concentration with larger sample sizes, cellular proliferation was not improved over controls for any cell type for the single- or sustained-dosing models. Proliferation for tendon fibroblasts was either similar or inferior to the control group at all concentrations of HGH. There was no clear dose-response relationship demonstrating enhanced collagen production with administration of HGH to suggest it enhances injury recovery. CONCLUSION HGH administered to human tendon and ligament fibroblasts does not appear to positively affect cellular proliferation and differentiation. CLINICAL RELEVANCE This study does not support the use of HGH for accelerating recovery from injury.
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Affiliation(s)
- Keith M Baumgarten
- Orthopedic Institute, Sioux Falls, South Dakota
- Sanford School of Medicine, University of South Dakota, Vermillion, South Dakota
| | - Eric S Sandhurst
- University of South Dakota GEAR Center, Sioux Falls, South Dakota
| | - Hongli Sun
- University of South Dakota GEAR Center, Sioux Falls, South Dakota
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Cao J, Wu B, Yuan P, Liu Y, Hu C. Rational Design of Multifunctional Hydrogels for Wound Repair. J Funct Biomater 2023; 14:553. [PMID: 37998122 PMCID: PMC10672203 DOI: 10.3390/jfb14110553] [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: 10/11/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 11/25/2023] Open
Abstract
The intricate microenvironment at the wound site, coupled with the multi-phase nature of the healing process, pose significant challenges to the development of wound repair treatments. In recent years, applying the distinctive benefits of hydrogels to the development of wound repair strategies has yielded some promising results. Multifunctional hydrogels, by meeting the different requirements of wound healing stages, have greatly improved the healing effectiveness of chronic wounds, offering immense potential in wound repair applications. This review summarized the recent research and applications of multifunctional hydrogels in wound repair. The focus was placed on the research progress of diverse multifunctional hydrogels, and their mechanisms of action at different stages of wound repair were discussed in detail. Through a comprehensive analysis, we found that multifunctional hydrogels play an indispensable role in the process of wound repair by providing a moist environment, controlling inflammation, promoting angiogenesis, and effectively preventing infection. However, further implementation of multifunctional hydrogel-based therapeutic strategies also faces various challenges, such as the contradiction between the complexity of multifunctionality and the simplicity required for clinical translation and application. In the future, we should work to address these challenges, further optimize the design and preparation of multifunctional hydrogels, enhance their effectiveness in wound repair, and promote their widespread application in clinical practice.
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Affiliation(s)
- Juan Cao
- School of Fashion and Design Art, Sichuan Normal University, Chengdu 610066, China;
| | - Bo Wu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China; (B.W.); (Y.L.)
| | - Ping Yuan
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China;
| | - Yeqi Liu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China; (B.W.); (Y.L.)
| | - Cheng Hu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
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Cao W, Lin Z, Zheng D, Zhang J, Heng W, Wei Y, Gao Y, Qian S. Metal-organic gels: recent advances in their classification, characterization, and application in the pharmaceutical field. J Mater Chem B 2023; 11:10566-10594. [PMID: 37916468 DOI: 10.1039/d3tb01612a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Metal-organic gels (MOGs) are a type of functional soft substance with a three-dimensional (3D) network structure and solid-like rheological behavior, which are constructed by metal ions and bridging ligands formed under the driving force of coordination interactions or other non-covalent interactions. As the homologous substances of metal-organic frameworks (MOFs) and gels, they exhibit the potential advantages of high porosity, flexible structure, and adjustable mechanical properties, causing them to attract extensive research interest in the pharmaceutical field. For instance, MOGs are often used as excellent vehicles for intelligent drug delivery and programmable drug release to improve the clinical curative effect with reduced side effects. Also, MOGs are often applied as advanced biomedical materials for the repair and treatment of pathological tissue and sensitive detection of drugs or other molecules. However, despite the vigorous research on MOGs in recent years, there is no systematic summary of their applications in the pharmaceutical field to date. The present review systematically summarize the recent research progress on MOGs in the pharmaceutical field, including drug delivery systems, drug detection, pharmaceutical materials, and disease therapies. In addition, the formation principles and classification of MOGs are complemented and refined, and the techniques for the characterization of the structures/properties of MOGs are overviewed in this review.
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Affiliation(s)
- Wei Cao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China.
| | - Zezhi Lin
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China.
| | - Daoyi Zheng
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China.
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China.
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China.
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China.
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Shan C, Xia Y, Wu Z, Zhao J. HIF-1α and periodontitis: Novel insights linking host-environment interplay to periodontal phenotypes. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 184:50-78. [PMID: 37769974 DOI: 10.1016/j.pbiomolbio.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/27/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Periodontitis, the sixth most prevalent epidemic disease globally, profoundly impacts oral aesthetics and masticatory functionality. Hypoxia-inducible factor-1α (HIF-1α), an oxygen-dependent transcriptional activator, has emerged as a pivotal regulator in periodontal tissue and alveolar bone metabolism, exerts critical functions in angiogenesis, erythropoiesis, energy metabolism, and cell fate determination. Numerous essential phenotypes regulated by HIF are intricately associated with bone metabolism in periodontal tissues. Extensive investigations have highlighted the central role of HIF and its downstream target genes and pathways in the coupling of angiogenesis and osteogenesis. Within this concise perspective, we comprehensively review the cellular phenotypic alterations and microenvironmental dynamics linking HIF to periodontitis. We analyze current research on the HIF pathway, elucidating its impact on bone repair and regeneration, while unraveling the involved cellular and molecular mechanisms. Furthermore, we briefly discuss the potential application of targeted interventions aimed at HIF in the field of bone tissue regeneration engineering. This review expands our biological understanding of the intricate relationship between the HIF gene and bone angiogenesis in periodontitis and offers valuable insights for the development of innovative therapies to expedite bone repair and regeneration.
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Affiliation(s)
- Chao Shan
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China
| | - YuNing Xia
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China
| | - Zeyu Wu
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China
| | - Jin Zhao
- Department of Dentistry, Xinjiang Medical University, Ürümqi, China; The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Ürümqi, China; Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China.
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7
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Han X, Saiding Q, Cai X, Xiao Y, Wang P, Cai Z, Gong X, Gong W, Zhang X, Cui W. Intelligent Vascularized 3D/4D/5D/6D-Printed Tissue Scaffolds. NANO-MICRO LETTERS 2023; 15:239. [PMID: 37907770 PMCID: PMC10618155 DOI: 10.1007/s40820-023-01187-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/25/2023] [Indexed: 11/02/2023]
Abstract
Blood vessels are essential for nutrient and oxygen delivery and waste removal. Scaffold-repairing materials with functional vascular networks are widely used in bone tissue engineering. Additive manufacturing is a manufacturing technology that creates three-dimensional solids by stacking substances layer by layer, mainly including but not limited to 3D printing, but also 4D printing, 5D printing and 6D printing. It can be effectively combined with vascularization to meet the needs of vascularized tissue scaffolds by precisely tuning the mechanical structure and biological properties of smart vascular scaffolds. Herein, the development of neovascularization to vascularization to bone tissue engineering is systematically discussed in terms of the importance of vascularization to the tissue. Additionally, the research progress and future prospects of vascularized 3D printed scaffold materials are highlighted and presented in four categories: functional vascularized 3D printed scaffolds, cell-based vascularized 3D printed scaffolds, vascularized 3D printed scaffolds loaded with specific carriers and bionic vascularized 3D printed scaffolds. Finally, a brief review of vascularized additive manufacturing-tissue scaffolds in related tissues such as the vascular tissue engineering, cardiovascular system, skeletal muscle, soft tissue and a discussion of the challenges and development efforts leading to significant advances in intelligent vascularized tissue regeneration is presented.
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Affiliation(s)
- Xiaoyu Han
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, 250013, Shandong, People's Republic of China
| | - Qimanguli Saiding
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China
| | - Xiaolu Cai
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, People's Republic of China
| | - Yi Xiao
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Peng Wang
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, 250013, Shandong, People's Republic of China
| | - Zhengwei Cai
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China
| | - Xuan Gong
- University of Texas Southwestern Medical Center, Dallas, TX, 75390-9096, USA
| | - Weiming Gong
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, 250013, Shandong, People's Republic of China.
| | - Xingcai Zhang
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China.
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Zhou B, Jiang X, Zhou X, Tan W, Luo H, Lei S, Yang Y. GelMA-based bioactive hydrogel scaffolds with multiple bone defect repair functions: therapeutic strategies and recent advances. Biomater Res 2023; 27:86. [PMID: 37715230 PMCID: PMC10504735 DOI: 10.1186/s40824-023-00422-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/22/2023] [Indexed: 09/17/2023] Open
Abstract
Currently, the clinical treatment of critical bone defects attributed to various causes remains a great challenge, and repairing these defects with synthetic bone substitutes is the most common strategy. In general, tissue engineering materials that mimic the structural, mechanical and biological properties of natural bone have been extensively applied to fill bone defects and promote in situ bone regeneration. Hydrogels with extracellular matrix (ECM)-like properties are common tissue engineering materials, among which methacrylate-based gelatin (GelMA) hydrogels are widely used because of their tunable mechanical properties, excellent photocrosslinking capability and good biocompatibility. Owing to their lack of osteogenic activity, however, GelMA hydrogels are combined with other types of materials with osteogenic activities to improve the osteogenic capability of the current composites. There are three main aspects to consider when enhancing the bone regenerative performance of composite materials: osteoconductivity, vascularization and osteoinduction. Bioceramics, bioglass, biomimetic scaffolds, inorganic ions, bionic periosteum, growth factors and two-dimensional (2D) nanomaterials have been applied in various combinations to achieve enhanced osteogenic and bone regeneration activities. Three-dimensional (3D)-bioprinted scaffolds are a popular research topic in bone tissue engineering (BTE), and printed and customized scaffolds are suitable for restoring large irregular bone defects due to their shape and structural tunability, enhanced mechanical properties, and good biocompatibility. Herein, the recent progress in research on GelMA-based composite hydrogel scaffolds as multifunctional platforms for restoring critical bone defects in plastic or orthopedic clinics is systematically reviewed and summarized. These strategies pave the way for the design of biomimetic bone substitutes for effective bone reconstruction with good biosafety. This review provides novel insights into the development and current trends of research on GelMA-based hydrogels as effective bone tissue engineering (BTE) scaffolds for correcting bone defects, and these contents are summarized and emphasized from various perspectives (osteoconductivity, vascularization, osteoinduction and 3D-bioprinting). In addition, advantages and deficiencies of GelMA-based bone substitutes used for bone regeneration are put forward, and corresponding improvement measures are presented prior to their clinical application in near future (created with BioRender.com).
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Affiliation(s)
- Bixia Zhou
- Department of Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China
| | - Xulei Jiang
- Department of Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China
| | - Xinxin Zhou
- Department of Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China
| | - Wuyuan Tan
- Department of Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China
| | - Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, PR China
| | - Shaorong Lei
- Department of Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China.
| | - Ying Yang
- Department of Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China.
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, PR China.
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9
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Li Y, Zhu J, Zhang X, Li Y, Zhang S, Yang L, Li R, Wan Q, Pei X, Chen J, Wang J. Drug-Delivery Nanoplatform with Synergistic Regulation of Angiogenesis-Osteogenesis Coupling for Promoting Vascularized Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17543-17561. [PMID: 37010447 DOI: 10.1021/acsami.2c23107] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
It has been confirmed that substantial vascularization is an effective strategy to heal large-scale bone defects in the field of bone tissue engineering. The local application of deferoxamine (DFO) is among the most common and effective methods for promoting the formation of blood vessels, although its short half-life in plasma, rapid clearance, and poor biocompatibility limit its therapeutic suitability. Herein, zeolitic imidazolate framework-8 (ZIF-8) was selected as a vehicle to extend the half-life of DFO. In the present study, a nano DFO-loaded ZIF-8 (DFO@ZIF-8) drug delivery system was established to promote angiogenesis-osteogenesis coupling. The nanoparticles were characterized, and their drug loading efficiency was examined to confirm the successful synthesis of nano DFO@ZIF-8. Additionally, due to the sustained release of DFO and Zn2+, DFO@ZIF-8 NPs were able to promote angiogenesis in human umbilical vein endothelial cells (HUVECs) culture and osteogenesis in bone marrow stem cells (BMSCs) in vitro. Furthermore, the DFO@ZIF-8 NPs promoted vascularization by enhancing the expression of type H vessels and a vascular network. The DFO@ZIF-8 NPs promoted bone regeneration in vivo by increasing the expression of OCN and BMP-2. RNA sequencing analysis revealed that the PI3K-AKT-MMP-2/9 and HIF-1α pathways were upregulated by DFO@ZIF-8 NPs in HUVECs, ultimately leading to the formation of new blood vessels. In addition, the mechanism by which DFO@ZIF-8 NPs promoted bone regeneration was potentially related to the synergistic effect of angiogenesis-osteogenesis coupling and Zn2+-mediation of the MAPK pathway. Taken together, DFO@ZIF-8 NPs, which were demonstrated to have low cytotoxicity and excellent coupling of angiogenesis and osteogenesis, represent a promising strategy for the reconstruction of critical-sized bone defects.
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Affiliation(s)
- Yahong Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Junjin Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yuanyuan Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Shu Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Linxin Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Ruyi Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jian Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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10
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Feng Z, Jin M, Liang J, Kang J, Yang H, Guo S, Sun X. Insight into the effect of biomaterials on osteogenic differentiation of mesenchymal stem cells: A review from a mitochondrial perspective. Acta Biomater 2023; 164:1-14. [PMID: 36972808 DOI: 10.1016/j.actbio.2023.03.032] [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: 11/16/2022] [Revised: 03/02/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023]
Abstract
Bone damage may be triggered by a variety of factors, and the damaged area often requires a bone graft. Bone tissue engineering can serve as an alternative strategy for repairing large bone defects. Mesenchymal stem cells (MSCs), the progenitor cells of connective tissue, have become an important tool for tissue engineering due to their ability to differentiate into a variety of cell types. The precise regulation of the growth and differentiation of the stem cells used for bone regeneration significantly affects the efficiency of this type of tissue engineering. During the process of osteogenic induction, the dynamics and function of localized mitochondria are altered. These changes may also alter the microenvironment of the therapeutic stem cells and result in mitochondria transfer. Mitochondrial regulation not only affects the induction/rate of differentiation, but also influences its direction, determining the final identity of the differentiated cell. To date, bone tissue engineering research has mainly focused on the influence of biomaterials on phenotype and nuclear genotype, with few studies investigating the role of mitochondria. In this review, we provide a comprehensive summary of researches into the role of mitochondria in MSCs differentiation and critical analysis regarding smart biomaterials that are able to "programme" mitochondria modulation was proposed. STATEMENT OF SIGNIFICANCE: : • This review proposed the precise regulation of the growth and differentiation of the stem cells used to seed bone regeneration. • This review addressed the dynamics and function of localized mitochondria during the process of osteogenic induction and the effect of mitochondria on the microenvironment of stem cells. • This review summarized biomaterials which affect the induction/rate of differentiation, but also influences its direction, determining the final identity of the differentiated cell through the regulation of mitochondria.
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Affiliation(s)
- Ziyi Feng
- Department of Plastic Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110002 Liaoning Province, China
| | - Meiqi Jin
- School of Intelligent Medicine, China Medical University, No.77, Puhe Road, Shenyang, 110122, Liaoning Province, China
| | - Junzhi Liang
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping, Shenyang, 110004 Liaoning Province, China
| | - Junning Kang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping, Shenyang, 110004 Liaoning Province, China
| | - Huazhe Yang
- School of Intelligent Medicine, China Medical University, No.77, Puhe Road, Shenyang, 110122, Liaoning Province, China.
| | - Shu Guo
- Department of Plastic Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110002 Liaoning Province, China.
| | - Xiaoting Sun
- School of Forensic Medicine, China Medical University, No.77, Puhe Road, Shenyang, 110122, Liaoning Province, China.
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11
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Li R, Zhang J, Shi J, Yue J, Cui Y, Ye Q, Wu G, Zhang Z, Guo Y, Fu D. An intelligent phase transformation system based on lyotropic liquid crystals for sequential biomolecule delivery to enhance bone regeneration. J Mater Chem B 2023; 11:2946-2957. [PMID: 36916173 DOI: 10.1039/d2tb02725a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Endogenous repair of critical bone defects is typically hampered by inadequate vascularization in the early stages and insufficient bone regeneration later on. Therefore, drug delivery systems with the ability to couple angiogenesis and osteogenesis in a spatiotemporal manner are highly desirable for vascularized bone formation. Herein, we devoted to develop a liquid crystal formulation system (LCFS) attaining a controlled temporal release of angiogenic and osteoinductive bioactive molecules that could orchestrate the coupling of angiogenesis and osteogenesis in an optimal way. It has been demonstrated that the release kinetics of biomolecules depend on the hydrophobicity of the loaded molecules, making the delivery profile programmable and controllable. The hydrophilic deferoxamine (DFO) could be released rapidly within 5 days to activate angiogenic signaling, while the lipophilic simvastatin (SIM) showed a slow and sustained release for continuous osteogenic induction. Apart from its good biocompatibility with mesenchymal stem cells derived from rat bone marrow (rBMSCs), the DFO/SIM loaded LCFS could stimulate the formation of a vascular morphology in human umbilical vein endothelial cells (HUVECs) and the osteogenic differentiation of rBMSCs in vitro. The in vivo rat femoral defect models have witnessed the prominent angiogenic and osteogenic effects induced by the sequential presentation of DFO and SIM. This study suggests that the sequential release of DFO and SIM from the LCFS results in enhanced bone formation, offering a facile and viable treatment option for bone defects by mimicking the physiological process of bone regeneration.
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Affiliation(s)
- Rui Li
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P. R. China
| | - Jiao Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P. R. China
| | - Jingyu Shi
- Department of Pharmacy, Liyuan Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, Hubei 430077, P. R. China.
| | - Jiang Yue
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 201114, P. R. China
| | - Yongzhi Cui
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, P. R. China.
| | - Qingsong Ye
- Center of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430066, P. R. China
| | - Gang Wu
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, The Netherlands
| | - Zhiping Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P. R. China
| | - Yuanyuan Guo
- Department of Pharmacy, Liyuan Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, Hubei 430077, P. R. China.
| | - Dehao Fu
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, P. R. China.
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12
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Hou J, Ding Z, Zheng X, Shen Y, Lu Q, Kaplan DL. Tough Porous Silk Nanofiber-Derived Cryogels with Osteogenic and Angiogenic Capacity for Bone Repair. Adv Healthc Mater 2023:e2203050. [PMID: 36841910 DOI: 10.1002/adhm.202203050] [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: 11/24/2022] [Revised: 01/30/2023] [Indexed: 02/27/2023]
Abstract
Tough porous cryogels with angiogenesis and osteogenesis features remain a design challenge for utility in bone regeneration. Here, building off of the recent efforts to generate tough silk nanofiber-derived cryogels with osteogenic activity, deferoxamine (DFO) is loaded in silk nanofiber-derived cryogels to introduce angiogenic capacity. Both the mechanical cues (stiffness) and the sustained release of DFO from the gels are controlled by tuning the concentration of silk nanofibers in the system, achieving a modulus above 400 kPa and slow release of the DFO over 60 days. The modulus of the cryogels and the released DFO induce osteogenic and angiogenic activity, which facilitates bone regeneration in vivo in femur defects in rat, resulting in faster regeneration of vascularized bone tissue. The tunable physical and chemical cues derived from these nanofibrous-microporous structures support the potential for silk cryogels in bone tissue regeneration.
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Affiliation(s)
- Jianwen Hou
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215000, P. R. China.,Department of Trauma Orthopedics, The Second People's Hospital of Lianyungang Affiliated to Bengbu Medical College, Lianyungang, 222023, P. R. China
| | - Zhaozhao Ding
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou, 215123, P. R. China
| | - Xin Zheng
- Department of Orthopedics, Taizhou Municipal Hospital, Taizhou, 318000, P. R. China
| | - Yixin Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215000, P. R. China
| | - Qiang Lu
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou, 215123, P. R. China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
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13
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Schulze F, Lang A, Schoon J, Wassilew GI, Reichert J. Scaffold Guided Bone Regeneration for the Treatment of Large Segmental Defects in Long Bones. Biomedicines 2023; 11:biomedicines11020325. [PMID: 36830862 PMCID: PMC9953456 DOI: 10.3390/biomedicines11020325] [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: 12/20/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Bone generally displays a high intrinsic capacity to regenerate. Nonetheless, large osseous defects sometimes fail to heal. The treatment of such large segmental defects still represents a considerable clinical challenge. The regeneration of large bone defects often proves difficult, since it relies on the formation of large amounts of bone within an environment impedimental to osteogenesis, characterized by soft tissue damage and hampered vascularization. Consequently, research efforts have concentrated on tissue engineering and regenerative medical strategies to resolve this multifaceted challenge. In this review, we summarize, critically evaluate, and discuss present approaches in light of their clinical relevance; we also present future advanced techniques for bone tissue engineering, outlining the steps to realize for their translation from bench to bedside. The discussion includes the physiology of bone healing, requirements and properties of natural and synthetic biomaterials for bone reconstruction, their use in conjunction with cellular components and suitable growth factors, and strategies to improve vascularization and the translation of these regenerative concepts to in vivo applications. We conclude that the ideal all-purpose material for scaffold-guided bone regeneration is currently not available. It seems that a variety of different solutions will be employed, according to the clinical treatment necessary.
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Affiliation(s)
- Frank Schulze
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Annemarie Lang
- Departments of Orthopaedic Surgery & Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Janosch Schoon
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Georgi I. Wassilew
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Johannes Reichert
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
- Correspondence: ; Tel.: +49-3834-86-22530
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14
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Zhao Y, Chen H, Ran K, Zhang Y, Pan H, Shangguan J, Tong M, Yang J, Yao Q, Xu H. Porous hydroxyapatite scaffold orchestrated with bioactive coatings for rapid bone repair. BIOMATERIALS ADVANCES 2022; 144:213202. [PMID: 36434928 DOI: 10.1016/j.bioadv.2022.213202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/09/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
Abstract
Current bioceramic scaffolds for critical-size bone defects are still facing various challenges such as the poor capability of self-resorption, vascularization and osteogenesis. Herein, a composite scaffold (HOD) is fabricated by integrating bioactive coatings of konjac glucomannan (KGM) and deferoxamine (DFO) into porous hydroxyapatite scaffold (HA), where KGM coating induces the self-resorption of HOD after implanting and DFO promoted the vascularization at the defected bone. Porous HA scaffolds with 200-400 μm of pore sizes were prepared and these bioactive coatings were successfully deposited on the scaffold, which was confirmed by SEM. MC3T3-E1 cells could be tightly attached to the pore wall of HOD and the obvious osteogenic differentiation was clearly displayed after 14 days of co-culture. Besides, HOD displayed the potential of promoting the vascularization of HUVECs. Importantly, the accelerated degradation of HOD was observed in a macrophage-associated acidic medium, which led to the self-resorption of HOD in vivo. Micro-CT images showed that HOD was gradually replaced by newly formed bone, achieving a balance between the new bone formation and the scaffold degradation. The rapid bone repairing of the femoral defects in rats was displayed for HOD in comparison to the HA scaffold. Moreover, the therapeutic mechanism of HOD was highly associated with promoted osteogenesis and vascularization. Collectively, the porous ceramic scaffold orchestrated with bioactive coatings may be a promising strategy for repairing of the large bone defect.
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Affiliation(s)
- Yingzheng Zhao
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China.
| | - Hangbo Chen
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Kunjie Ran
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Yingying Zhang
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Hanxiao Pan
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Jianxun Shangguan
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Mengqi Tong
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Jiaojiao Yang
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Qing Yao
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Helin Xu
- Department of pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China.
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15
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Zhao Y, Zhao S, Ma Z, Ding C, Chen J, Li J. Chitosan-Based Scaffolds for Facilitated Endogenous Bone Re-Generation. Pharmaceuticals (Basel) 2022; 15:ph15081023. [PMID: 36015171 PMCID: PMC9414235 DOI: 10.3390/ph15081023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/07/2022] [Accepted: 08/10/2022] [Indexed: 02/07/2023] Open
Abstract
Facilitated endogenous tissue engineering, as a facile and effective strategy, is emerging for use in bone tissue regeneration. However, the development of bioactive scaffolds with excellent osteo-inductivity to recruit endogenous stem cells homing and differentiation towards lesion areas remains an urgent problem. Chitosan (CS), with versatile qualities including good biocompatibility, biodegradability, and tunable physicochemical and biological properties is undergoing vigorously development in the field of bone repair. Based on this, the review focus on recent advances in chitosan-based scaffolds for facilitated endogenous bone regeneration. Initially, we introduced and compared the facilitated endogenous tissue engineering with traditional tissue engineering. Subsequently, the various CS-based bone repair scaffolds and their fabrication methods were briefly explored. Furthermore, the functional design of CS-based scaffolds in bone endogenous regeneration including biomolecular loading, inorganic nanomaterials hybridization, and physical stimulation was highlighted and discussed. Finally, the major challenges and further research directions of CS-based scaffolds were also elaborated. We hope that this review will provide valuable reference for further bone repair research in the future.
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Affiliation(s)
- Yao Zhao
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Sinuo Zhao
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Zhengxin Ma
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Chunmei Ding
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- Correspondence: (C.D.); (J.C.); (J.L.)
| | - Jingdi Chen
- Marine College, Shandong University, Weihai 264209, China
- Correspondence: (C.D.); (J.C.); (J.L.)
| | - Jianshu Li
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Med-X Center for Materials, Sichuan University, Chengdu 610041, China
- Correspondence: (C.D.); (J.C.); (J.L.)
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16
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Cui J, Yu X, Yu B, Yang X, Fu Z, Wan J, Zhu M, Wang X, Lin K. Coaxially Fabricated Dual-Drug Loading Electrospinning Fibrous Mat with Programmed Releasing Behavior to Boost Vascularized Bone Regeneration. Adv Healthc Mater 2022; 11:e2200571. [PMID: 35668705 DOI: 10.1002/adhm.202200571] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/22/2022] [Indexed: 01/24/2023]
Abstract
In clinical treatment, the bone regeneration of critical-size defects is desiderated to be solved, and the regeneration of large bone segment defects depends on early vascularization. Therefore, overcoming insufficient vascularization in artificial bone grafts may be a promising strategy for critical-size bone regeneration. Herein, a novel dual-drug programmed releasing electrospinning fibrous mat (EFM) with a deferoxamine (DFO)-loaded shell layer and a dexamethasone (DEX)-loaded core layer is fabricated using coaxial electrospinning technology, considering the temporal sequence of vascularization and bone repair. DFO acts as an angiogenesis promoter and DEX is used as an osteogenesis inducer. The results demonstrate that the early and rapid release of DFO promotes angiogenesis in human umbilical vascular endothelial cells and the sustained release of DEX enhances the osteogenic differentiation of rat bone mesenchymal stem cells. DFO and DEX exert synergetic effects on osteogenic differentiation via the Wnt/β-catenin signaling pathway, and the dual-drug programmed releasing EFM acquired perfect vascularized bone regeneration ability in a rat calvarial defect model. Overall, the study suggests a low-cost strategy to enhance vascularized bone regeneration by adjusting the behavior of angiogenesis and osteogenesis in time dimension.
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Affiliation(s)
- Jinjie Cui
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
| | - Xingge Yu
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
| | - Bin Yu
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
| | - Xiuyi Yang
- Department of Orthodontics, Affiliated Stomatological Hospital of Soochow University, Suzhou, 215005, China
| | - Zeyu Fu
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
| | - Jianyu Wan
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
| | - Min Zhu
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
| | - Xudong Wang
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
| | - Kaili Lin
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China
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17
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Bai H, Wang Y, Zhao Y, Chen X, Xiao Y, Bao C. HIF signaling: A new propellant in bone regeneration. BIOMATERIALS ADVANCES 2022; 138:212874. [PMID: 35913258 DOI: 10.1016/j.bioadv.2022.212874] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/04/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Bone tissue destruction leads to severe pain, physical flaws, and loss of motility. Bone repair using biocompatible and osteo-inductive scaffolds is regarded as a viable and potential therapeutic approach. However, for large-scale bone regeneration, oxygen and nutrient supply have become limiting factors. Further, a considerable need exists for recruited cell activities and blood vessel growth. Hypoxia-inducible factor (HIF) signaling pathways induced by hypoxia are involved in angiogenesis and osteogenesis. As an important transcription factor, HIF-1 functions by modulating vital genes, such as VEGF, PDK1, and EPO, and is a crucial regulator that influences the final fate of bone regeneration. Collectively, to achieve better osteogenesis results, the in-depth molecular mechanisms that underpin the links between materials, cells, and HIF signaling pathways must be determined. This review aimed to provide an in-depth insight into recent progress in HIF-regulated bone regeneration. Hypoxia and cellular oxygen-sensing mechanisms and their correlations with osteogenesis were determined, and recent studies on hypoxia-inducing and hypoxia-mimicking strategies were briefly described. Finally, the potential applications of HIF signaling in bone regeneration were highlighted. This review provides theoretical support for establishing a novel and viable bone repair strategy in the clinic by harnessing HIF signaling.
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Affiliation(s)
- Hetian Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China
| | - Yue Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China
| | - Yi Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China
| | - Xin Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China
| | - Yu Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China.
| | - Chongyun Bao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China
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18
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Fan Z, Liu H, Shi S, Ding Z, Zhang Z, Lu Q, Kaplan DL. Anisotropic silk nanofiber layers as regulators of angiogenesis for optimized bone regeneration. Mater Today Bio 2022; 15:100283. [PMID: 35634170 PMCID: PMC9130114 DOI: 10.1016/j.mtbio.2022.100283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/06/2022] [Accepted: 05/08/2022] [Indexed: 11/16/2022] Open
Abstract
Osteogenesis-angiogenesis coupling processes play a crucial role in bone regeneration. Here, electric field induced aligned nanofiber layers with tunable thickness were coated on the surface of pore walls inside the deferoxamine (DFO)-laden silk fibroin (SF) and hydroxyapatite (HA) composite scaffolds to regulate the release of DFO to control vascularization dynamically. Longer electric field treatments resulted in gradually thickening layers to reduce the release rate of DFO where the released amount of DFO decreased gradually from 84% to 63% after 28 days. Besides the osteogenic capacity of HA, the changeable release of DFO brought different angiogenic behaviors in bone regeneration process, which provided a desirable niche with osteogenic and angiogenic cues. Anisotropic cues were introduced to facilitate cell migration inside the scaffolds. Changeable cytokine secretion from endothelial cells cultured in the different scaffolds revealed the regulation of cell responses related to vascularization in vitro. Peak expression of angiogenic factors appeared at days 7, 21 and 35 for endothelial cells cultured in the scaffolds with different silk nanofier layers, suggesting the dynamical regulation of angiogenesis. Although all of the scaffolds had the same silk and HA composition, in vitro cell studies indicated different osteogenic capacities for the scaffolds, suggesting that the regulation of DFO release also influenced osteogenesis outcomes in vitro. In vivo, the best bone regeneration occurred in defects treated with the composite scaffolds that exhibited the best osteogenic capacity in vitro. Using a rat bone defect model, healing was achieved within 12 weeks, superior to those treated with previous SF-HA composite matrices. Controlling angiogenic properties of bone biomaterials dynamically is an effective strategy to improve bone regeneration capacity. Anisotropic silk nanofiber layers with tunable thickness control the sustained release of DFO dynamically. Dynamical regulation of angiogenesis was achieved in bone regeneration process through tuning the release behaviors of DFO. Significantly improved bone regeneration through the synergistic effect of optimal vascularization and osteogenesis.
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Affiliation(s)
- Zhihai Fan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215000, PR China
| | - Hongxiang Liu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215000, PR China
| | - Shilei Shi
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215000, PR China
| | - Zhaozhao Ding
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, PR China
- Corresponding author.
| | - Zhen Zhang
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, PR China
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, PR China
- Corresponding author.
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, United States
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19
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Optimization of a Tricalcium Phosphate-Based Bone Model Using Cell-Sheet Technology to Simulate Bone Disorders. Processes (Basel) 2022. [DOI: 10.3390/pr10030550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Bone diseases such as osteoporosis, delayed or impaired bone healing, and osteoarthritis still represent a social, financial, and personal burden for affected patients and society. Fully humanized in vitro 3D models of cancellous bone tissue are needed to develop new treatment strategies and meet patient-specific needs. Here, we demonstrate a successful cell-sheet-based process for optimized mesenchymal stromal cell (MSC) seeding on a β-tricalcium phosphate (TCP) scaffold to generate 3D models of cancellous bone tissue. Therefore, we seeded MSCs onto the β-TCP scaffold, induced osteogenic differentiation, and wrapped a single osteogenically induced MSC sheet around the pre-seeded scaffold. Comparing the wrapped with an unwrapped scaffold, we did not detect any differences in cell viability and structural integrity but a higher cell seeding rate with osteoid-like granular structures, an indicator of enhanced calcification. Finally, gene expression analysis showed a reduction in chondrogenic and adipogenic markers, but an increase in osteogenic markers in MSCs seeded on wrapped scaffolds. We conclude from these data that additional wrapping of pre-seeded scaffolds will provide a local niche that enhances osteogenic differentiation while repressing chondrogenic and adipogenic differentiation. This approach will eventually lead to optimized preclinical in vitro 3D models of cancellous bone tissue to develop new treatment strategies.
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20
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Zha S, Utomo YKS, Yang L, Liang G, Liu W. Mechanic-Driven Biodegradable Polyglycolic Acid/Silk Fibroin Nanofibrous Scaffolds Containing Deferoxamine Accelerate Diabetic Wound Healing. Pharmaceutics 2022; 14:pharmaceutics14030601. [PMID: 35335978 PMCID: PMC8948832 DOI: 10.3390/pharmaceutics14030601] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 11/16/2022] Open
Abstract
The extracellular matrix (ECM), comprising of hundreds of proteins, mainly collagen, provides physical, mechanical support for various cells and guides cell behavior as an interactive scaffold. However, deposition of ECM, especially collagen content, is seriously impaired in diabetic wounds, which cause inferior mechanical properties of the wound and further delay chronic wound healing. Thus, it is critical to develop ECM/collagen alternatives to remodel the mechanical properties of diabetic wounds and thus accelerate diabetic wound healing. Here, we firstly prepared mechanic-driven biodegradable PGA/SF nanofibrous scaffolds containing DFO for diabetic wound healing. In our study, the results in vitro showed that the PGA/SF-DFO scaffolds had porous three-dimensional nanofibrous structures, excellent mechanical properties, biodegradability, and biocompatibility, which would provide beneficial microenvironments for cell adhesion, growth, and migration as an ECM/collagen alternative. Furthermore, the data in vivo showed PGA/SF-DFO scaffolds can adhere well to the wound and have excellent biodegradability, which is helpful to avoid secondary damage by omitting the removal process of scaffolds. The finite element analysis results showed that the application of silk fibroin-based scaffolds could significantly reduce the maximum stress around the wound. Besides, PGA/SF-DFO scaffolds induced collagen deposition, re-vascularization, recovered impaired mechanical properties up to about 70%, and ultimately accelerated diabetic wound healing within 14 days. Thus, our work provides a promising therapeutic strategy for clinically chronic wound healing.
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21
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Lang A, Stefanowski J, Pfeiffenberger M, Wolter A, Damerau A, Hemmati-Sadeghi S, Haag R, Hauser AE, Löhning M, Duda GN, Hoff P, Schmidt-Bleek K, Gaber T, Buttgereit F. MIF does only marginally enhance the pro-regenerative capacities of DFO in a mouse-osteotomy-model of compromised bone healing conditions. Bone 2022; 154:116247. [PMID: 34743042 DOI: 10.1016/j.bone.2021.116247] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 12/18/2022]
Abstract
The initial phase of fracture healing is crucial for the success of bone regeneration and is characterized by an inflammatory milieu and low oxygen tension (hypoxia). Negative interference with or prolongation of this fine-tuned initiation phase will ultimately lead to a delayed or incomplete healing such as non-unions which then requires an effective and gentle therapeutic intervention. Common reasons include a dysregulated immune response, immunosuppression or a failure in cellular adaptation to the inflammatory hypoxic milieu of the fracture gap and a reduction in vascularizing capacity by environmental noxious agents (e.g. rheumatoid arthritis or smoking). The hypoxia-inducible factor (HIF)-1α is responsible for the cellular adaptation to hypoxia, activating angiogenesis and supporting cell attraction and migration to the fracture gap. Here, we hypothesized that stabilizing HIF-1α could be a cost-effective and low-risk prevention strategy for fracture healing disorders. Therefore, we combined a well-known HIF-stabilizer - deferoxamine (DFO) - and a less known HIF-enhancer - macrophage migration inhibitory factor (MIF) - to synergistically induce improved fracture healing. Stabilization of HIF-1α enhanced calcification and osteogenic differentiation of MSCs in vitro. In vivo, only the application of DFO without MIF during the initial healing phase increased callus mineralization and vessel formation in a preclinical mouse-osteotomy-model modified to display a compromised healing. Although we did not find a synergistically effect of MIF when added to DFO, our findings provide additional support for a preventive strategy towards bone healing disorders in patients with a higher risk by accelerating fracture healing using DFO to stabilize HIF-1α.
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Affiliation(s)
- Annemarie Lang
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany; Berlin Institute of Health at Charité Universitätsmedizin Berlin, Center for Regenerative Therapies, Berlin, Germany
| | - Jonathan Stefanowski
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Moritz Pfeiffenberger
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Angelique Wolter
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Alexandra Damerau
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Shabnam Hemmati-Sadeghi
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; Berlin Institute of Health at Charité Universitätsmedizin Berlin, Center for Regenerative Therapies, Berlin, Germany; Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Anja E Hauser
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Max Löhning
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Georg N Duda
- Berlin Institute of Health at Charité Universitätsmedizin Berlin, Center for Regenerative Therapies, Berlin, Germany; Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany; Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Julius Wolff Institute, Berlin, Germany
| | - Paula Hoff
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany; Berlin Institute of Health at Charité Universitätsmedizin Berlin, Center for Regenerative Therapies, Berlin, Germany
| | - Katharina Schmidt-Bleek
- Berlin Institute of Health at Charité Universitätsmedizin Berlin, Center for Regenerative Therapies, Berlin, Germany; Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany; Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Julius Wolff Institute, Berlin, Germany
| | - Timo Gaber
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany; Berlin Institute of Health at Charité Universitätsmedizin Berlin, Center for Regenerative Therapies, Berlin, Germany.
| | - Frank Buttgereit
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany; Berlin Institute of Health at Charité Universitätsmedizin Berlin, Center for Regenerative Therapies, Berlin, Germany
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22
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Sun Y, Liu X, Zhu Y, Han Y, Shen J, Bao B, Gao T, Lin J, Huang T, Xu J, Chai Y, Zheng X. Tunable and Controlled Release of Cobalt Ions from Metal-Organic Framework Hydrogel Nanocomposites Enhances Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59051-59066. [PMID: 34846853 DOI: 10.1021/acsami.1c16300] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cobalt (Co) ions, which can mimic hypoxia to promote angiogenesis, exhibit great potential for bone repair. However, a key point for the use of Co ions is that their release profile should be controllable and, more importantly, suitable for the bone regeneration process. Here, 2-ethylimidazole (eIm) was introduced into zeolitic imidazolate framework-67 (ZIF-67) to slow down Co-ion release and fabricate eIm-doped ZIF-67 (eIm/ZIF-67), which was combined into gelatin methacrylate (GelMA) to obtain an in situ photo-cross-linking nanocomposite hydrogel as a tunable Co-ion controlled release system. A tunable and controlled release of Co ions from the nanocomposite hydrogel was achieved by variation of linker composition, and GelMA with 75% eIm/ZIF-67 (with 75% eIm in the precursor solutions) could maintain a 21-day sustained release of Co ions, which is matched with early-stage angiogenesis during the bone formation process. Our in vitro study also showed that the GelMA@eIm/ZIF-67 hydrogel could reduce cytotoxicity and effectively promote the angiogenic activity of human umbilical vein endothelial cells (HUVECs) and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). Moreover, an in vivo rat calvarial defect model demonstrated that the GelMA@eIm/ZIF-67 hydrogel exhibited remarkably enhanced bone formation and neovascularization abilities and had good biocompatibility as shown in organ histopathological examinations. Therefore, this novel nanocomposite hydrogel has strong therapeutic potential as a desirable Co-ion controlled release system and a powerful proangiogenic/osteogenic agent for the treatment of bone defects.
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Affiliation(s)
- Yi Sun
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Xuanzhe Liu
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Yu Zhu
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Yue Han
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China
| | - Junjie Shen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Bingbo Bao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Tao Gao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Junqing Lin
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Tengli Huang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Jia Xu
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
| | - Xianyou Zheng
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, P. R. China
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23
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Zheng X, Zhang X, Wang Y, Liu Y, Pan Y, Li Y, Ji M, Zhao X, Huang S, Yao Q. Hypoxia-mimicking 3D bioglass-nanoclay scaffolds promote endogenous bone regeneration. Bioact Mater 2021; 6:3485-3495. [PMID: 33817422 PMCID: PMC7988349 DOI: 10.1016/j.bioactmat.2021.03.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 02/08/2021] [Accepted: 03/03/2021] [Indexed: 12/16/2022] Open
Abstract
Large bone defect repair requires biomaterials that promote angiogenesis and osteogenesis. In present work, a nanoclay (Laponite, XLS)-functionalized 3D bioglass (BG) scaffold with hypoxia mimicking property was prepared by foam replication coupled with UV photopolymerization methods. Our data revealed that the incorporation of XLS can significantly promote the mechanical property of the scaffold and the osteogenic differentiation of human adipose mesenchymal stem cells (ADSCs) compared to the properties of the neat BG scaffold. Desferoxamine, a hypoxia mimicking agent, encourages bone regeneration via activating hypoxia-inducible factor-1 alpha (HIF-1α)-mediated angiogenesis. GelMA-DFO immobilization onto BG-XLS scaffold achieved sustained DFO release and inhibited DFO degradation. Furthermore, in vitro data demonstrated increased HIF-1α and vascular endothelial growth factor (VEGF) expressions on human adipose mesenchymal stem cells (ADSCs). Moreover, BG-XLS/GelMA-DFO scaffolds also significantly promoted the osteogenic differentiation of ADSCs. Most importantly, our in vivo data indicated BG-XLS/GelMA-DFO scaffolds strongly increased bone healing in a critical-sized mouse cranial bone defect model. Therefore, we developed a novel BG-XLS/GelMA-DFO scaffold which can not only induce the expression of VEGF, but also promote osteogenic differentiation of ADSCs to promote endogenous bone regeneration.
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Affiliation(s)
- Xiao Zheng
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang, 325027, PR China
| | - Xiaorong Zhang
- Department of Endodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, PR China
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, PR China
| | - Yingting Wang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, PR China
| | - Yangxi Liu
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, USA
| | - Yining Pan
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang, 325027, PR China
| | - Yijia Li
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang, 325027, PR China
| | - Man Ji
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang, 325027, PR China
| | - Xueqin Zhao
- College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China
| | - Shengbin Huang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, PR China
- Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Qingqing Yao
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang, 325027, PR China
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24
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Han X, Sun M, Chen B, Saiding Q, Zhang J, Song H, Deng L, Wang P, Gong W, Cui W. Lotus seedpod-inspired internal vascularized 3D printed scaffold for bone tissue repair. Bioact Mater 2021; 6:1639-1652. [PMID: 33313444 PMCID: PMC7701916 DOI: 10.1016/j.bioactmat.2020.11.019] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/27/2020] [Accepted: 11/12/2020] [Indexed: 12/16/2022] Open
Abstract
In the field of bone defect repair, 3D printed scaffolds have the characteristics of personalized customization and accurate internal structure. However, how to construct a well-structured vascular network quickly and effectively inside the scaffold is essential for bone repair after transplantation. Herein, inspired by the unique biological structure of "lotus seedpod", hydrogel microspheres encapsulating deferoxamine (DFO) liposomes were prepared through microfluidic technology as "lotus seeds", and skillfully combined with a three-dimensional (3D) printed bioceramic scaffold with biomimetic "lotus" biological structure which can internally grow blood vessels. In this composite scaffold system, DFO was effectively released by 36% in the first 6 h, which was conducive to promote the growth of blood vessels inside the scaffold quickly. In the following 7 days, the release rate of DFO reached 69%, which was fundamental in the formation of blood vessels inside the scaffold as well as osteogenic differentiation of bone mesenchymal stem cells (BMSCs). It was confirmed that the composite scaffold could significantly promote the human umbilical vein endothelial cells (HUVECs) to form the vascular morphology within 6 h in vitro. In vivo, the composite scaffold increased the expression of vascularization and osteogenic related proteins Hif1-α, CD31, OPN, and OCN in the rat femoral defect model, significantly cutting down the time of bone repair. To sum up, this "lotus seedpod" inspired porous bioceramic 3D printed scaffold with internal vascularization functionality has broad application prospects in the future.
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Affiliation(s)
- Xiaoyu Han
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, Shandong, 250013, PR China
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Mingjie Sun
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, Shandong, 250013, PR China
| | - Bo Chen
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Qimanguli Saiding
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Junyue Zhang
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, Shandong, 250013, PR China
| | - Hongliang Song
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, Shandong, 250013, PR China
| | - Lianfu Deng
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Peng Wang
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, Shandong, 250013, PR China
| | - Weiming Gong
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, Shandong, 250013, PR China
| | - Wenguo Cui
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
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25
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Zeinali R, del Valle LJ, Torras J, Puiggalí J. Recent Progress on Biodegradable Tissue Engineering Scaffolds Prepared by Thermally-Induced Phase Separation (TIPS). Int J Mol Sci 2021; 22:ijms22073504. [PMID: 33800709 PMCID: PMC8036748 DOI: 10.3390/ijms22073504] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/23/2022] Open
Abstract
Porous biodegradable scaffolds provide a physical substrate for cells allowing them to attach, proliferate and guide the formation of new tissues. A variety of techniques have been developed to fabricate tissue engineering (TE) scaffolds, among them the most relevant is the thermally-induced phase separation (TIPS). This technique has been widely used in recent years to fabricate three-dimensional (3D) TE scaffolds. Low production cost, simple experimental procedure and easy processability together with the capability to produce highly porous scaffolds with controllable architecture justify the popularity of TIPS. This paper provides a general overview of the TIPS methodology applied for the preparation of 3D porous TE scaffolds. The recent advances in the fabrication of porous scaffolds through this technique, in terms of technology and material selection, have been reviewed. In addition, how properties can be effectively modified to serve as ideal substrates for specific target cells has been specifically addressed. Additionally, examples are offered with respect to changes of TIPS procedure parameters, the combination of TIPS with other techniques and innovations in polymer or filler selection.
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Affiliation(s)
- Reza Zeinali
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
- Correspondence: (R.Z.); (J.P.); Tel.: +34-93-401-1620 (R.Z.); +34-93-401-5649 (J.P.)
| | - Luis J. del Valle
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
| | - Joan Torras
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
| | - Jordi Puiggalí
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, c/Baldiri Reixac 10-12, 08028 Barcelona, Spain
- Correspondence: (R.Z.); (J.P.); Tel.: +34-93-401-1620 (R.Z.); +34-93-401-5649 (J.P.)
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26
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Hong L, Sun H, Amendt BA. MicroRNA function in craniofacial bone formation, regeneration and repair. Bone 2021; 144:115789. [PMID: 33309989 PMCID: PMC7869528 DOI: 10.1016/j.bone.2020.115789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/25/2020] [Accepted: 12/01/2020] [Indexed: 02/06/2023]
Abstract
Bone formation in the craniofacial complex is regulated by cranial neural crest (CNC) and mesoderm-derived cells. Different elements of the developing skull, face, mandible, maxilla (jaws) and nasal bones are regulated by an array of transcription factors, signaling molecules and microRNAs (miRs). miRs are molecular modulators of these factors and act to restrict their expression in a temporal-spatial mechanism. miRs control the different genetic pathways that form the craniofacial complex. By understanding how miRs function in vivo during development they can be adapted to regenerate and repair craniofacial genetic anomalies as well as bone diseases and defects due to traumatic injuries. This review will highlight some of the new miR technologies and functions that form new bone or inhibit bone regeneration.
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Affiliation(s)
- Liu Hong
- Iowa Institute for Oral Health Research, The University of Iowa, Iowa City, IA, USA
| | - Hongli Sun
- Iowa Institute for Oral Health Research, The University of Iowa, Iowa City, IA, USA
| | - Brad A Amendt
- Iowa Institute for Oral Health Research, The University of Iowa, Iowa City, IA, USA; The University of Iowa, Department of Anatomy and Cell Biology, Iowa City, IA, USA; Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA, USA.
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27
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Hu J, Miszuk JM, Stein KM, Sun H. Nanoclay Promotes Mouse Cranial Bone Regeneration Mainly through Modulating Drug Binding and Sustained Release. APPLIED MATERIALS TODAY 2020; 21:100860. [PMID: 33225042 PMCID: PMC7673671 DOI: 10.1016/j.apmt.2020.100860] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Nanoclay (Nanosilicates, NS) is appearing as an intriguing 2D nanomaterial for bone tissue engineering with multiple proposed functions, e.g., intrinsic osteoinductivity, improving mechanical properties, and drug release capacity. However, the mechanism of NS for in vivo bone regeneration has been hardly defined so far. This knowledge gap will significantly affect the design/application of NS-based biomaterials. To determine the role of NS in osteoblastic differentiation and bone formation, we used the mouse calvarial-derived pre-osteoblasts (MC3T3-E1) and a clinically-relevant mouse cranial bone defect model. Instead of a hydrogel, we prepared biomimetic 3D gelatin nanofibrous scaffolds (GF) and NS-blended composite scaffolds (GF/NS) to determine the essential role of NS in critical low-dose (0.5 μg per scaffold) of BMP2-induced cranial bone regeneration. In contrast to "osteoinductivity", our data indicated that NS could enable single-dose of BMP2, promoting significant osteoblastic differentiation while multiple-dose of BMP2 (without NS) was required to achieve similar efficacy. Moreover, our release study revealed that direct binding to NS in GF scaffolds provided stronger protection to BMP2 and sustained release compared to GF/NS composite scaffolds. Consistently, our in vivo data indicated that only BMP2/NS direct binding treatment was able to repair the large mouse cranial bone defects after 6 weeks of transplantation while neither BMP2, NS alone, nor BMP2 released from GF/NS scaffolds was sufficient to induce significant cranial bone defect repair. Therefore, we concluded that direct nanoclay-drug binding enabled sustained release is the most critical contribution to the significantly improved bone regeneration compared to other possible mechanisms based on our study.
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Affiliation(s)
- Jue Hu
- Department of Oral and Maxillofacial Surgery, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
- Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
| | - Jacob M. Miszuk
- Department of Oral and Maxillofacial Surgery, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
- Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
| | - Kyle M. Stein
- Department of Oral and Maxillofacial Surgery, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
| | - Hongli Sun
- Department of Oral and Maxillofacial Surgery, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
- Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
- Corresponding Authors: Professor Hongli Sun, Ph.D., Department of Oral and Maxillofacial Surgery, Iowa Institute for Oral Health Research, N405 DSB, College of Dentistry, 801 Newton Road, The University of Iowa, Iowa City, IA 52242, Tel: 319-335-1217,
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Weng T, Zhou L, Yi L, Zhang C, He Y, Wang T, Ju Y, Xu Y, Li L. Delivery of dimethyloxalylglycine in calcined bone calcium scaffold to improve osteogenic differentiation and bone repair. Biomed Mater 2020; 16. [PMID: 33022670 DOI: 10.1088/1748-605x/abbec7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 10/06/2020] [Indexed: 11/11/2022]
Abstract
As hypoxia plays a vital role in the angiogenic-osteogenic coupling, using proline hydroxylase inhibitors to manipulate hypoxia-inducible factors has become a strategy to improve the osteogenic properties of biomaterials. Dimethyloxallyl glycine (DMOG) is a 2-ketoglutarate analog, a small molecular compound that competes for 2-ketoglutaric acid to inhibit proline hydroxylase. In order to improve the osteogenic ability of calcined bone calcium (CBC), a new hypoxia-mimicking scaffold (DMOG/Collagen/CBC) was prepared by immersing it in the DMOG-Collagen solution, followed by freeze-drying. All coated CBC scaffolds retained the inherent natural porous architecture and showed excellent biocompatibility. A slow release of DMOG by the DMOG-loaded CBC scaffolds for up to one week was observed in in vitro experiments. Moreover, the DMOG/Collagen/CBC composite scaffold was found to significantly stimulate bone marrow stromal cells to express osteogenic and angiogenic genes in vitro. In addition, the osteogenic properties of three kinds of scaffolds, raw CBC, Collagen/CBC, and DMOG/Collagen/CBC, were evaluated by histology using the rabbit femoral condyle defect model. Histomorphometric analyses showed that the newly formed bone (BV/TV) in the DMOG/Collagen/CBC group was significantly higher than that of the Collagen/CBC group. However, immunostaining of CD31 and Runx2 expression between these two groups showed no significant difference at this time point. Our results indicate that DMOG-coated CBC can promote osteogenic differentiation and bone healing, and show potential for clinical application in bone tissue engineering.
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Affiliation(s)
- Tujun Weng
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Liangliang Zhou
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Lingxian Yi
- Department of ICU, The 306th hospital of PLA, Beijing, CHINA
| | - Chunli Zhang
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Ying He
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Tianqi Wang
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Yue Ju
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
| | - Ye Xu
- School of Mechanical Engineering and Automation, Beihang University, Beijing, CHINA
| | - Li Li
- Department of Orthopaedics, Fourth medical center of PLA General Hospital, Beijing, CHINA
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29
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Combined Pharmacotherapy with Alendronate and Desferoxamine Regulate the Bone Resorption and Bone Regeneration for Preventing Glucocorticoids-Induced Osteonecrosis of the Femoral Head. BIOMED RESEARCH INTERNATIONAL 2020; 2020:3120458. [PMID: 33029500 PMCID: PMC7532397 DOI: 10.1155/2020/3120458] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/04/2020] [Accepted: 09/15/2020] [Indexed: 12/01/2022]
Abstract
Background Osteonecrosis of the femoral head (ONFH) is a challenge for surgeons and is still without effective treatment method. This study is aimed at evaluating the combined pharmacotherapy with alendronate and desferoxamine for preventing glucocorticoid-induced osteonecrosis of the femoral head (GIOFH) and evaluating the efficacy of the combined medicine in regulating the bone resorption and bone regeneration. Materials and Methods Thirty-six rats were randomly assigned to three groups: group A received alendronate and desferoxamine (n = 12), group B received alendronate only (n = 12), and group C acted as the control group received placebo (n = 12). All rats induced the GIOFH using methylprednisolone combined with lipopolysaccharide. Eight weeks later, all rats were killed and their tissues were subjected to radiographic and histological analyses. Results According to the results, alendronate administration improved the trabecular thickness and separation in micro-CT analysis but had no significant evidence in increasing the bone area and decreasing the ratio of osteocyte lacunae in histological analysis when compared with the control group. Meanwhile, the alendronate group had more OCs, but less OCN and VEGF levels along with decreased p-AKT, HIF-1α, RANKL, and NFATc1 expressions than the control group. For comparison, alendronate combined with DFO further improved the bone volume, trabecular number, trabecular separation, and trabecular thickness with lower ratio of osteocyte lacunae and OC number, higher expression of OCN and VEGF and upregulated signal factors of HIF-1α and β-catenin, and decreased RANKL and NFATc1. Conclusion Combined pharmacotherapy with alendronate and desferoxamine provide significant effects in regulating the bone resorption and bone regeneration for preventing GIOFN.
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Ren S, Liu Y, Zhu Y, Wang Y, Liu M, Zhou Y. [Application status of hypoxia mimetic agents in bone tissue engineering]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2020; 34:1190-1194. [PMID: 32929915 DOI: 10.7507/1002-1892.201911144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To summarize the application status of hypoxia mimetic agents in bone tissue engineering. Methods The related literature about the hypoxia mimetic agents in bone tissue engineering was reviewed and analyzed. And the application status and progress of hypoxia mimetic agents in bone tissue engineering were retrospectively analyzed. Results Hypoxia mimetic agents have the same effect as hypoxia in up-regulating the level of hypoxia inducible factor 1α (HIF-1α). The combination of hypoxia mimetic agents and scaffolds can up-regulate the level of HIF-1α in bone tissue engineering, thus promoting early vascularization and bone regeneration of the bone defect area, which provides a new idea for using bone tissue engineering to repair bone defect. At present, the commonly used hypoxia mimetic agents include iron chelating agents, oxoglutarate competitive analogues, proline hydroxylase inhibitors, etc. Conclusion Hypoxia mimetic agents have a wide application prospect in bone tissue engineering, but they have been used in bone tissue engineering for a short time, more attention should be paid to their possible side effects. In the future research, the hypoxia mimetic agents should be developed in the direction of higher targeting specificity and safety, and the exact mechanism of hypoxia mimetic agents in promoting bone regeneration should be further explored.
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Affiliation(s)
- Sicong Ren
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun Jilin, 130021, P.R.China
| | - Yiping Liu
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun Jilin, 130021, P.R.China
| | - Yanlin Zhu
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun Jilin, 130021, P.R.China
| | - Yingying Wang
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun Jilin, 130021, P.R.China
| | - Manxuan Liu
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun Jilin, 130021, P.R.China
| | - Yanmin Zhou
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun Jilin, 130021, P.R.China
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Miszuk JM, Hu J, Sun H. Biomimetic Nanofibrous 3D Materials for Craniofacial Bone Tissue Engineering. ACS APPLIED BIO MATERIALS 2020; 3:6538-6545. [PMID: 33163910 DOI: 10.1021/acsabm.0c00946] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Repair of large bone defects using biomaterials-based strategies has been a significant challenge due to the complex characteristics required for tissue regeneration, especially in the craniofacial region. Tissue engineering strategies aimed at restoration of function face challenges in material selection, synthesis technique, and choice of bioactive factor release in combination with all aforementioned facets. Biomimetic nanofibrous (NF) scaffolds are attractive vehicles for tissue engineering due to their ability to promote endogenous bone regeneration by mimicking the shape and chemistry of natural bone extracellular matrix (ECM). To date, several techniques for generation of biomimetic NF scaffolds have been discovered, each possessing several advantages and drawbacks. This spotlight highlights two of the more popular techniques for biomimetic NF scaffold synthesis: electrospinning and thermally-induced phase separation (TIPS), covering development from inception in each technique as well as discussing the most recent innovations in each fabrication method.
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Affiliation(s)
- Jacob M Miszuk
- Department of Oral and Maxillofacial Surgery, University of Iowa College of Dentistry, Iowa City, IA 52242, USA.,Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
| | - Jue Hu
- Department of Oral and Maxillofacial Surgery, University of Iowa College of Dentistry, Iowa City, IA 52242, USA.,Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
| | - Hongli Sun
- Department of Oral and Maxillofacial Surgery, University of Iowa College of Dentistry, Iowa City, IA 52242, USA.,Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
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32
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Zheng X, Liu Y, Liu Y, Pan Y, Yao Q. Novel three-dimensional bioglass functionalized gelatin nanofibrous scaffolds for bone regeneration. J Biomed Mater Res B Appl Biomater 2020; 109:517-526. [PMID: 32864862 DOI: 10.1002/jbm.b.34720] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 08/13/2020] [Accepted: 08/18/2020] [Indexed: 12/17/2022]
Abstract
The clinical use of FDA-approved bone morphogenetic proteins (BMPs) are impeded by high costs, super-high dosage requirement, short half-life, and other undesirable side effects. Therefore, designing a biomaterial that can promote new bone formation without using exogenous BMPs is highly desirable in clinical applications. In the present work, a new kind of nanofibrous scaffold composed of gelatin and 45S5 bioglass (GF/45S5 BG) was prepared through thermally induced phase separation method together with the particle leach technique (TIPS&P). In addition to the significantly higher mechanical strength, the composite scaffolds (GF/45S5 BG) significantly increased osteogenic differentiation of human mesenchymal stem cells (hMSCs) in vitro compared with the neat scaffold (GF) without adding other biological agents, for example, BMPs or hormones. Most importantly, our in vivo studies also indicated that GF/45S5 BG scaffolds could directly promote ectopic bone regeneration in SD rats without exogenous BMP2. In summary, both in vitro and in vivo results indicated that the novel 45S5 bioglass functionalized GF nanofibrous scaffold is a promising alternative for bone tissue engineering.
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Affiliation(s)
- Xiao Zheng
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yu Liu
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yangxi Liu
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Evanston, Illinois, USA.,Department of Surgery, Feinberg School of Medicine, Northwestern University, Evanston, Illinois, USA
| | - Yining Pan
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qingqing Yao
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang, China
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33
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VanCleave A, Palmer M, Fang F, Torres H, Rodezno T, Li Q, Fuglsby K, Evans C, Afeworki Y, Ross A, Rao P, Leiferman P, Zheng S, Houghton P, Tao J. Development and characterization of the novel human osteosarcoma cell line COS-33 with sustained activation of the mTOR pathway. Oncotarget 2020; 11:2597-2610. [PMID: 32676162 PMCID: PMC7343631 DOI: 10.18632/oncotarget.27611] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/01/2020] [Indexed: 01/04/2023] Open
Abstract
Outcomes have not improved for metastatic osteosarcoma for several decades. In part, this failure to develop better therapies stems from a lack of understanding of osteosarcoma biology, given the rarity of the disease and the high genetic heterogeneity at the time of diagnosis. We report here the successful establishment of a new human osteosarcoma cell line, COS-33, from a patient-derived xenograft and demonstrate retention of the biological features of the original tumor. We found high mTOR signaling activity in the cultured cells, which were sensitive to a small molecule inhibitor, rapamycin, a suppressor of the mTOR pathway. Suppressed mTOR signaling after treatment with rapamycin was confirmed by decreased phosphorylation of the S6 ribosomal protein. Increasing concentrations of rapamycin progressively inhibited cell proliferation in vitro. We observed significant inhibitory effects of the drug on cell migration, invasion, and colony formation in the cultured cells. Furthermore, we found that only a strong osteogenic inducer, bone morphogenetic protein-2, promoted the cells to differentiate into mature mineralizing osteoblasts, indicating that the COS-33 cell line may have impaired osteoblast differentiation. Grafted COS-33 cells exhibited features typical of osteosarcoma, such as production of osteoid and tumorigenicity in vivo. In addition, we revealed that the COS-33 cell line retained a complex karyotype, a homozygous deletion of the TP53 gene, and typical histological features from its original tumor. Our novel cellular model may provide a valuable platform for studying the etiology and molecular pathogenesis of osteosarcoma as well as for testing novel drugs for future genome-informed targeted therapy.
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Affiliation(s)
- Ashley VanCleave
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA
| | - Mykayla Palmer
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA.,SPUR Scholar Program, University of South Dakota, Sioux Falls, SD, USA
| | - Fang Fang
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA
| | - Haydee Torres
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA.,Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA
| | - Tania Rodezno
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA
| | - Qilin Li
- Greehey Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Kirby Fuglsby
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA.,Department of Biomedical Engineering, University of South Dakota, Sioux Falls, SD, USA
| | - Claire Evans
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA
| | - Yohannes Afeworki
- Functional Genomics & Bioinformatics Core Facility, Sanford Research, Sioux Falls, SD, USA
| | - Alan Ross
- Sanford Medical Genetics Laboratory of Sanford Health, Sioux Falls, SD, USA
| | - Pulivarthi Rao
- Texas Children's Cancer and Hematology Centers, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Patricia Leiferman
- EGL Genetics Laboratory, Tucker, GA, USA.,Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, SD, USA
| | - Siyuan Zheng
- Greehey Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Peter Houghton
- Greehey Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Jianning Tao
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, USA.,Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA.,Department of Biomedical Engineering, University of South Dakota, Sioux Falls, SD, USA.,Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, SD, USA
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Cheng W, Ding Z, Zheng X, Lu Q, Kong X, Zhou X, Lu G, Kaplan DL. Injectable hydrogel systems with multiple biophysical and biochemical cues for bone regeneration. Biomater Sci 2020; 8:2537-2548. [PMID: 32215404 PMCID: PMC7204512 DOI: 10.1039/d0bm00104j] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bone regeneration is a complex process in which angiogenesis and osteogenesis are crucial. Introducing multiple angiogenic and osteogenic cues simultaneously into a single system and tuning these cues to optimize the niche remains a challenge for bone tissue engineering. Herein, based on our injectable biomimetic hydrogels composed of silk nanofibers (SNF) and hydroxyapatite nanoparticles (HA), deferoxamine (DFO) and bone morphogenetic protein-2 (BMP-2) were loaded on SNF and HA to introduce more angiogenic and osteogenic cues. The angiogenesis and osteogenesis capacity of injectable hydrogels could be regulated by tuning the delivery of DFO and BMP-2 independently, resulting in vascularization and bone regeneration in cranial defects. The angiogenesis and osteogenesis outcomes accelerated the regeneration of vascularized bones toward similar composition and structure to natural bones. Therefore, the multiple biophysical and chemical cues provided by the nanofibrous structures, organic-inorganic compositions, and chemical and biochemical angiogenic and osteogenic inducing cues suggest the potential for clinical applicability of these hydrogels in bone tissue engineering.
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Affiliation(s)
- Weinan Cheng
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215000, People's Republic of China. and Department of Burns and Plastic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi 214041, People's Republic of China. and Department of Orthopedics, The First Affiliated Hospital of Xiamen University, Xiamen 361000, People's Republic of China
| | - Zhaozhao Ding
- Department of Burns and Plastic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi 214041, People's Republic of China.
| | - Xin Zheng
- Department of Orthopedics, Taizhou Municipal Hospital, Taizhou 318000, People's Republic of China
| | - Qiang Lu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215000, People's Republic of China. and Department of Burns and Plastic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi 214041, People's Republic of China.
| | - Xiangdong Kong
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Xiaozhong Zhou
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215000, People's Republic of China.
| | - Guozhong Lu
- Department of Burns and Plastic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi 214041, People's Republic of China.
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, USA
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A Novel Star Like Eight-Arm Polyethylene Glycol-Deferoxamine Conjugate for Iron Overload Therapy. Pharmaceutics 2020; 12:pharmaceutics12040329. [PMID: 32272723 PMCID: PMC7238202 DOI: 10.3390/pharmaceutics12040329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/22/2020] [Accepted: 03/30/2020] [Indexed: 01/10/2023] Open
Abstract
The traditional iron chelator deferoxamine (DFO) has been widely used in the treatment of iron overload disease. However, DFO has congenital disadvantages, including a very short circular time and non-negligible toxicity. Herein, we designed a novel multi-arm conjugate for prolonging DFO duration in vivo and reducing cytotoxicity. The star-like 8-arm-polyethylene glycol (8-arm-PEG) was used as the macromolecular scaffold, and DFO molecules were bound to the terminals of the PEG branches via amide bonds. The conjugates displayed comparable iron binding ability to the free DFO. Furthermore, these macromolecule conjugates could significantly reduce the cytotoxicity of the free DFO, and showed satisfactory iron clearance capability in the iron overloaded macrophage RAW 246.7. The plasma half-life of the 8-arm-PEG-DFO conjugate was about 190 times than that of DFO when applied to an intravenously administered rat model. In conclusion, research indicated that these star-like PEG-based conjugates could be promising candidates as long circulating, less toxic iron chelators.
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36
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Yao Q, Fuglsby KE, Zheng X, Sun H. Nanoclay-functionalized 3D nanofibrous scaffolds promote bone regeneration. J Mater Chem B 2020; 8:3842-3851. [PMID: 32219244 DOI: 10.1039/c9tb02814e] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Developing a biomaterial that can promote osteoblastic differentiation, thereby reducing the needs of exogenous osteogenic factors for large bone repair, has been a significant and long-term technical hurdle. In this study, we developed an innovative nanoclay (nanosilicate, NS)-functionalized 3D gelatin nanofibrous scaffold (GF/NS) through a thermally induced phase separation method together with the particle leaching technique (TIPS&P). In addition to the significantly higher mechanical strength, the composite scaffolds (GF/NS) demonstrated a significantly stronger ability to promote the osteogenic differentiation of human mesenchymal stem cells (hMSCs) in vitro compared to the GF scaffold. Our data further revealed that this intriguing pro-osteoblastic functionality was largely because of the unique features of NS, particularly, the strong binding ability to pro-osteoblastic factors (e.g., BMP2) as well as the intrinsic osteoinductivity of its bioactive degradation products. Most importantly, our in vivo studies indicated that GF/NS scaffolds significantly improved low-dose BMP2-induced ectopic bone regeneration in mice.
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Affiliation(s)
- Qingqing Yao
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology and Optometry/School of Biomedical Engineering, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
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37
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Yao Q, Liu Y, Pan Y, Miszuk JM, Sun H. One-pot porogen free method fabricated porous microsphere-aggregated 3D PCL scaffolds for bone tissue engineering. J Biomed Mater Res B Appl Biomater 2020; 108:2699-2710. [PMID: 32154997 DOI: 10.1002/jbm.b.34601] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/13/2020] [Accepted: 03/01/2020] [Indexed: 12/12/2022]
Abstract
Three-dimensional (3D) scaffolds with interconnected, hierarchically structured pores, and biomimetic nanostructures are desirable for tissue engineering, where preparation with a facile and biocompatible strategy remains challenging. In the present work, an innovative porous microspheres-aggregated 3D PCL scaffold with macropores, micropores, and nanofibrous-like structures was fabricated through a one-pot thermally induced phase separation (TIPS) method without the use of any porogen or specific instruments. Importantly, the porosity, pore size, and mechanical properties of our scaffolds were tailorable through tuning of the polymer concentration. Interestingly, the bioactivity of our 3D PCL scaffolds was significantly improved, as abundant apatite-like layers were formed on the 3D porous scaffolds, while no obvious apatite was observed on the 2D flat PCL film. Moreover, the high surface area attributed to the hierarchical macro/micro/nanostructure enabled our 3D porous scaffold to serve as a drug delivery depot for sustained release of both small molecule drug (phenamil) and protein (BMP2). In addition to sustained drug release, the hierarchical structure and high mechanical properties also contribute to significantly improving BMP2-induced osteogenic differentiation. In summary, we developed a novel PCL porous scaffold through a facile, one-pot TIPS method and demonstrated its promising potential application in large bone defect repair.
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Affiliation(s)
- Qingqing Yao
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Biomedical Engineering, University of South Dakota, Sioux Falls, South Dakota, USA
| | - Yu Liu
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yining Pan
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jacob M Miszuk
- Department of Biomedical Engineering, University of South Dakota, Sioux Falls, South Dakota, USA
| | - Hongli Sun
- Department of Biomedical Engineering, University of South Dakota, Sioux Falls, South Dakota, USA
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38
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Li L, Liu W, Zhao Y, Ma P, Zha S, Chen P, Lu H, Jiang X, Wan S, Luo J, Dai Q, Hu J, Utomo YKS, Han X, Yang Z, Yang L, He Q. Dual-Peptide-Functionalized Nanofibrous Scaffolds Recruit Host Endothelial Progenitor Cells for Vasculogenesis to Repair Calvarial Defects. ACS APPLIED MATERIALS & INTERFACES 2020; 12:3474-3493. [PMID: 31874023 DOI: 10.1021/acsami.9b21434] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Vasculogenesis (de novo formation of vessels) induced by endothelial progenitor cells (EPCs) is requisite for vascularized bone regeneration. However, there exist few available options for promoting vasculogenesis within artificial bone grafts except for exogenous EPC transplantation, which suffers from the source of EPC, safety, cost, and time concerns in clinical applications. This study aimed at endogenous EPC recruitment for vascularized bone regeneration by using a bioinspired EPC-induced graft. The EPC-induced graft was created by immobilizing two bioactive peptides, WKYMVm and YIGSR, on the surface of poly(ε-caprolactone) (PCL)/poliglecaprone (PGC) nanofibrous scaffolds via a polyglycolic acid (PGA)-binding peptide sequence. Remarkable immobilization efficacy of WKYMVm and YIGSR peptides and their sustained release (over 14 days) from scaffolds were observed. In vivo and in vitro studies showed robust recruitment of EPCs, which subsequently contributed to early vasculogenesis and ultimate bone regeneration. The dual-peptide-functionalized nanofibrous scaffolds proposed in this study provide a promising therapeutic strategy for vasculogenesis in bone defect repair.
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Affiliation(s)
- Li Li
- Orthopedic Department, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
- Orthopedic Department , The First Affiliated Hospital of Zhengzhou University , Zhengzhou 450001 , P.R. China
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy , Southwest University , Chongqing 400715 , P.R. China
| | - Wanqian Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Yulan Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Pingping Ma
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Shenfang Zha
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Peixin Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Hongwei Lu
- Orthopedic Department, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
| | - Xiaorui Jiang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Shuang Wan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Jiangming Luo
- Center of Joint Surgery, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
| | - Qijie Dai
- Orthopedic Department, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
| | - Junxian Hu
- Orthopedic Department, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
| | - Yohanes Kristo Sugiarto Utomo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Xinyun Han
- Orthopedic Department, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy , Southwest University , Chongqing 400715 , P.R. China
| | - Zhengwei Yang
- Orthopedic Department, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College , Chongqing University , Chongqing 400044 , China
| | - Qingyi He
- Orthopedic Department, Southwest Hospital , The First Hospital Affiliated to Army Medical University (Southwest Hospital) , Chongqing 400038 , P.R. China
- Orthopedic Department , The First Affiliated Hospital of Zhengzhou University , Zhengzhou 450001 , P.R. China
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy , Southwest University , Chongqing 400715 , P.R. China
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Liu Y, Hu J, Sun H. Mineralized nanofibrous scaffold promotes phenamil-induced osteoblastic differentiation while mitigating adipogenic differentiation. J Tissue Eng Regen Med 2019; 14:464-474. [PMID: 31840422 DOI: 10.1002/term.3007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 10/23/2019] [Accepted: 10/27/2019] [Indexed: 12/20/2022]
Abstract
Large bone defects represent a significant unmet medical challenge. Cost effectiveness and better stability make small molecule organic compounds a more promising alternative compared with biomacromolecules, for example, growth factors/hormones, in regenerative medicine. However, one common challenge for the application of these small compounds is their side-effect issue. Phenamil is emerging as an intriguing small molecule to promote bone repair by strongly activating bone morphogenetic protein signaling pathway. In addition to osteogenesis, phenamil also induces significant adipogenesis based on some in vitro studies, which is a concern that impedes it from potential clinical applications. Besides the soluble chemical signals, cellular differentiation is heavily dependent on the microenvironments provided by the 3D scaffolds. Therefore, we developed a 3D nanofibrous biomimetic scaffold-based strategy to harness the phenamil-induced stem cell lineage differentiation. Based on the gene expression, alkaline phosphatase activity, and mineralization data, we indicated that bone-matrix mimicking mineralized-gelatin nanofibrous scaffold effectively improved phenamil-induced osteoblastic differentiation, while mitigating the adipogenic differentiation in vitro. In addition to normal culture conditions, we also indicated that mineralized matrix can significantly improve phenamil-induced osteoblastic differentiation in simulated inflammatory condition. In viewing of the crucial role of mineralized matrix, we developed an innovative and facile mineral deposition-based strategy to sustain release of phenamil from 3D scaffolds for efficient local bone regeneration. Overall, our study demonstrated that biomaterials played a crucial role in modulating small molecule drug phenamil-induced osteoblastic differentiation by providing a bone-matrix mimicking mineralized gelatin nanofibrous scaffolds.
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Affiliation(s)
- Yangxi Liu
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, South Dakota
| | - Jue Hu
- Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Iowa, Iowa City, Iowa
| | - Hongli Sun
- Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Iowa, Iowa City, Iowa
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Yu X, Wan Q, Ye X, Cheng Y, Pathak JL, Li Z. Cellular hypoxia promotes osteogenic differentiation of mesenchymal stem cells and bone defect healing via STAT3 signaling. Cell Mol Biol Lett 2019; 24:64. [PMID: 31827540 PMCID: PMC6889321 DOI: 10.1186/s11658-019-0191-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/21/2019] [Indexed: 12/23/2022] Open
Abstract
Background Hypoxia in the vicinity of bone defects triggers the osteogenic differentiation of precursor cells and promotes healing. The activation of STAT3 signaling in mesenchymal stem cells (MSCs) has similarly been reported to mediate bone regeneration. However, the interaction between hypoxia and STAT3 signaling in the osteogenic differentiation of precursor cells during bone defect healing is still unknown. Methods In this study, we assessed the impact of different durations of CoCl2-induced cellular hypoxia on the osteogenic differentiation of MSCs. Role of STAT3 signaling on hypoxia induced osteogenic differentiation was analyzed both in vitro and in vivo. The interaction between cellular hypoxia and STAT3 signaling in vivo was investigated in a mouse femoral bone defect model. Results The peak osteogenic differentiation and expression of vascular endothelial growth factor (VEGF) occurred after 3 days of hypoxia. Inhibiting STAT3 reversed this effect. Hypoxia enhanced the expression of hypoxia-inducible factor 1-alpha (HIF-1α) and STAT3 phosphorylation in MSCs. Histology and μ-CT results showed that CoCl2 treatment enhanced bone defect healing. Inhibiting STAT3 reduced this effect. Immunohistochemistry results showed that CoCl2 treatment enhanced Hif-1α, ALP and pSTAT3 expression in cells present in the bone defect area and that inhibiting STAT3 reduced this effect. Conclusions The in vitro study revealed that the duration of hypoxia is crucial for osteogenic differentiation of precursor cells. The results from both the in vitro and in vivo studies show the role of STAT3 signaling in hypoxia-induced osteogenic differentiation of precursor cells and bone defect healing.
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Affiliation(s)
- Xin Yu
- 1The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079 China.,2Department of Oral and Maxillofacial Trauma and Plastic Surgery, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079 China.,3Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Qilong Wan
- 2Department of Oral and Maxillofacial Trauma and Plastic Surgery, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079 China
| | - Xiaoling Ye
- 1The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079 China
| | - Yuet Cheng
- 1The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079 China
| | - Janak L Pathak
- 4Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, 510140 China
| | - Zubing Li
- 1The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079 China.,2Department of Oral and Maxillofacial Trauma and Plastic Surgery, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079 China
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Ding Z, Zhou M, Zhou Z, Zhang W, Jiang X, Lu X, Zuo B, Lu Q, Kaplan DL. Injectable Silk Nanofiber Hydrogels for Sustained Release of Small-Molecule Drugs and Vascularization. ACS Biomater Sci Eng 2019; 5:4077-4088. [PMID: 33448809 DOI: 10.1021/acsbiomaterials.9b00621] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Strategies to control neovascularization in damaged tissues remain a key issue in regenerative medicine. Unlike most reported desferrioxamine (DFO)-loaded systems where DFO demonstrates a burst release, here we attain zero-order release behavior above 40 days. This outcome was achieved by blending DFO with silk nanofibers with special hydrophilic-hydrophobic properties. The special silk nanofibers showed strong physical binding capacity with DFO, avoiding chemical cross-linking. Using these new biomaterials in vivo in a rat wound model suggested that the DFO-loaded silk nanofiber hydrogel systems stimulated angiogenesis by the sustained release of DFO, but also facilitated cell migration and tissue ingrowth. These features resulted in faster formation of a blood vessel network in the wounds, as well improved healing when compared to the free DFO system. The DFO-loaded systems are also suitable for the regeneration of other tissues, such as nerve and bone, suggesting universality in the biomedical field.
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Affiliation(s)
| | - Mingliang Zhou
- Department of Prosthodontics, Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | | | - Wenjie Zhang
- Department of Prosthodontics, Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Xinquan Jiang
- Department of Prosthodontics, Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | | | | | | | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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Lee HR, Pelaez F, Silbaugh AM, Leslie F, Racila E, Azarin SM. Biomaterial Platform To Establish a Hypoxic Metastatic Niche in Vivo. ACS APPLIED BIO MATERIALS 2019; 2:1549-1560. [PMID: 35026889 DOI: 10.1021/acsabm.8b00837] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hypoxia is a hallmark of tumor microenvironments, exerting wide-ranging impacts on key processes of tumor progression and metastasis. However, our understanding of how hypoxia regulates these processes has been based primarily on studying the effects of hypoxia within the primary tumor. Recently, an increasing number of studies have suggested the importance of hypoxic regulation within metastatic target organs, but hypoxic metastatic niches in the body are difficult to access with current imaging techniques, hampering detailed in vivo investigation of hypoxia at metastatic sites. Here, we report an engineered biomaterial scaffold that is able to establish an in vivo hypoxic metastatic niche in a readily accessible area, enabling the investigation of hypoxic regulation at a metastatic site. We engineered hypoxic environments within microporous poly(lactide-co-glycolide) (PLG) scaffolds, which have previously been shown to act as premetastatic niche mimics, via the addition of CoCl2, a hypoxia-mimetic agent. When implanted into the subcutaneous region of mice, CoCl2-containing PLG (Co-PLG) scaffolds established hypoxic microenvironments, as evidenced by the stabilization of hypoxia-inducible factor 1α (HIF1α) and increased blood vessel formation in vitro and in vivo. Furthermore, implanted Co-PLG scaffolds were able to recruit 4T1 metastatic breast cancer cells. These results demonstrate that Co-PLG scaffolds can establish an in vivo hypoxic metastatic niche, providing a novel platform to investigate hypoxic regulation of disseminated tumor cells (DTCs) at target organs.
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Toro-Urrego N, Vesga-Jiménez DJ, Herrera MI, Luaces JP, Capani F. Neuroprotective Role of Hypothermia in Hypoxic-ischemic Brain Injury: Combined Therapies using Estrogen. Curr Neuropharmacol 2019; 17:874-890. [PMID: 30520375 PMCID: PMC7052835 DOI: 10.2174/1570159x17666181206101314] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 10/26/2018] [Accepted: 11/28/2018] [Indexed: 12/15/2022] Open
Abstract
Hypoxic-ischemic brain injury is a complex network of factors, which is mainly characterized by a decrease in levels of oxygen concentration and blood flow, which lead to an inefficient supply of nutrients to the brain. Hypoxic-ischemic brain injury can be found in perinatal asphyxia and ischemic-stroke, which represent one of the main causes of mortality and morbidity in children and adults worldwide. Therefore, knowledge of underlying mechanisms triggering these insults may help establish neuroprotective treatments. Selective Estrogen Receptor Modulators and Selective Tissue Estrogenic Activity Regulators exert several neuroprotective effects, including a decrease of reactive oxygen species, maintenance of cell viability, mitochondrial survival, among others. However, these strategies represent a traditional approach of targeting a single factor of pathology without satisfactory results. Hence, combined therapies, such as the administration of therapeutic hypothermia with a complementary neuroprotective agent, constitute a promising alternative. In this sense, the present review summarizes the underlying mechanisms of hypoxic-ischemic brain injury and compiles several neuroprotective strategies, including Selective Estrogen Receptor Modulators and Selective Tissue Estrogenic Activity Regulators, which represent putative agents for combined therapies with therapeutic hypothermia.
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Affiliation(s)
- Nicolás Toro-Urrego
- Address correspondence to this author at the Laboratorio de Citoarquitectura y Plasticidad Neuronal, Instituto de Investigaciones Cardiológicas, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina; E-mail:
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Kong L, Wu Z, Zhao H, Cui H, Shen J, Chang J, Li H, He Y. Bioactive Injectable Hydrogels Containing Desferrioxamine and Bioglass for Diabetic Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:30103-30114. [PMID: 30113159 DOI: 10.1021/acsami.8b09191] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Diabetic wound is hard to heal mainly because of the difficulty in vascularization in the wound area. Accumulating results have shown that desferrioxamine (DFO) can promote secretion of hypoxia inducible factor-1 (HIF-1α), thereby upregulating the expression of angiogenic growth factors and facilitating revascularization. Our preliminary study has demonstrated that Si ions in bioglass (BG) can upregulate vascular endothelial growth factor (VEGF) expression, thus promoting revascularization. It is hypothesized that the combined use of BG and DFO may have a synergistic effect in promoting VEGF expression and revascularization. To prove this, we first determined DFO concentration range that had no apparent cytotoxicity on human umbilical vein endothelial cells (HUVECs). Then, the optimal concentration of DFO promoting tube formation of HUVECs was determined by cell migration and tube formation assays. In addition, we demonstrated that combination use of BG and DFO improved the migration and tube formation of HUVECs as compared with the use of either BG or DFO alone as BG and DFO could synergistically upregulate VEGF expression. Furthermore, a sodium alginate hydrogel containing both BG and DFO was developed, and this hydrogel better facilitated diabetic skin wound healing than the use of either BG or DFO alone as BG and DFO in the hydrogels worked synergistically in promoting HIF-1α and VEGF expression and subsequently vascularization in the wound sites. Therefore, in this study, the synergistic effect in promoting revascularization between BG and DFO was first demonstrated and an injectable hydrogel simultaneously containing BG and DFO was developed for enhancing repair of diabetic chronic skin defects by taking advantages of the synergistic effects of BG and DFO in promoting revascularization. The study opens up a new prospect for the development of skin repair-promoting biomaterials.
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Affiliation(s)
- Lingzhi Kong
- Department of Orthopedics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , 600 Yishan Road , Shanghai 200233 , China
| | | | - Huakun Zhao
- Department of Orthopedics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , 600 Yishan Road , Shanghai 200233 , China
| | - Haomin Cui
- Department of Orthopedics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , 600 Yishan Road , Shanghai 200233 , China
| | - Ji Shen
- Department of Orthopedics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , 600 Yishan Road , Shanghai 200233 , China
| | - Jiang Chang
- State Key Laboratory of Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai 200050 , China
| | | | - Yaohua He
- Department of Orthopedics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , 600 Yishan Road , Shanghai 200233 , China
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45
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Wang D, Liu Y, Yang X, Zhou J. Hypoxic preconditioning enhances cell hypoxia tolerance and correlated lncRNA and mRNA analysis. Life Sci 2018; 208:46-54. [DOI: 10.1016/j.lfs.2018.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/23/2018] [Accepted: 07/07/2018] [Indexed: 01/04/2023]
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46
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Hao S, Zhang Y, Meng J, Liu J, Wen T, Gu N, Xu H. Integration of a Superparamagnetic Scaffold and Magnetic Field To Enhance the Wound-Healing Phenotype of Fibroblasts. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22913-22923. [PMID: 29901385 DOI: 10.1021/acsami.8b04149] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Most of the existing scaffolds for guiding tissue regeneration do not provide direct mechanical stimulation to the cells grown on them. In this work, we used nanofibrous superparamagnetic scaffolds with applied magnetic fields to build a "dynamic" scaffold platform and investigated the modulating effects of this platform on the phenotypes of fibroblasts. The results of enzyme-linked immunosorbent and transwell assays indicated that fibroblasts cultivated in this platform secreted significantly higher type I collagen, vascular endothelial growth factor A, and transforming growth factor-β1 and did so in a time-dependent manner. At the same time, they produced fewer pro-inflammatory cytokines, including interleukin-1β and monocyte chemoattractant protein-1; this, in turn, accelerated the osteogenesis of preosteoblasts with the help of increased basic fibroblast growth factor as well as balanced extracellular matrix components. Mechanistic studies revealed that the platform modulated the phenotypic polarization of fibroblasts through the activation of components of integrin, focal adhesion kinase, and extracellular signal-regulated kinase signaling pathways and the inhibition of the activation of Toll-like receptor-4 and nuclear factor κB. Overall, the platform promoted the wound-healing phenotype of fibroblasts, which would be of great benefit to the scaffold-guided tissue regeneration.
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Affiliation(s)
- Suisui Hao
- Institute of Basic Medicine, Peking Union Medical College , Chinese Academy of Medical Sciences , Beijing 100005 , China
| | - Yu Zhang
- School of Biological Sciences and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Jie Meng
- Institute of Basic Medicine, Peking Union Medical College , Chinese Academy of Medical Sciences , Beijing 100005 , China
| | - Jian Liu
- Institute of Basic Medicine, Peking Union Medical College , Chinese Academy of Medical Sciences , Beijing 100005 , China
| | - Tao Wen
- Institute of Basic Medicine, Peking Union Medical College , Chinese Academy of Medical Sciences , Beijing 100005 , China
| | - Ning Gu
- School of Biological Sciences and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Haiyan Xu
- Institute of Basic Medicine, Peking Union Medical College , Chinese Academy of Medical Sciences , Beijing 100005 , China
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Yao Q, Liu Y, Sun H. Heparin-dopamine functionalized graphene foam for sustained release of bone morphogenetic protein-2. J Tissue Eng Regen Med 2018; 12:1519-1529. [PMID: 29702734 PMCID: PMC6013394 DOI: 10.1002/term.2681] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 03/21/2018] [Accepted: 04/16/2018] [Indexed: 12/14/2022]
Abstract
The recently developed three-dimensional (3D) graphene foam (GrF) is intriguing for potential bone tissue engineering applications because it provides stem cells with a 3D porous substrate for osteogenic differentiation. However, the nature of graphene's structure lacks functional groups, thus making it difficult for further modification such as immobilization or conjugation of growth factors, which are normally required to promote tissue regeneration. To explore the potential of GrF functionalization and sustained release of therapeutic proteins, we fabricated a modified 3D GrF scaffold with bio-inspired heparin-dopamine (Hepa-Dopa) molecules using a highly scalable chemical vapour deposition method. Our data indicated that Hepa-Dopa modification resulted in significantly higher bone morphogenetic protein-2 (BMP2) binding ability and longer release capacity compared with the untreated scaffolds. Importantly, the heparin-functionalized 3D GrF significantly improved the exogenous BMP2-induced osteogenic differentiation. Therefore, our study, for the first time, indicated that the 3D GrF can be biomimetically functionalized with Hepa-Dopa and be used for sustained release of BMP2, thereby inducing osteogenic differentiation and suggesting promising potential as a new multifunctional carrier for therapeutic proteins and stem cells in bone tissue engineering.
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Affiliation(s)
- Qingqing Yao
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, China
- Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
| | - Yangxi Liu
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
| | - Hongli Sun
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
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Yao Q, Liu Y, Selvaratnam B, Koodali RT, Sun H. Mesoporous silicate nanoparticles/3D nanofibrous scaffold-mediated dual-drug delivery for bone tissue engineering. J Control Release 2018; 279:69-78. [PMID: 29649529 DOI: 10.1016/j.jconrel.2018.04.011] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 03/01/2018] [Accepted: 04/06/2018] [Indexed: 12/20/2022]
Abstract
Controlled delivery systems play a critical role in the success of bone morphogenetic proteins (i.e., BMP2 and BMP7) for challenged bone repair. Instead of single-drug release that is currently and commonly prevalent, dual-drug delivery strategies are highly desired to achieve effective bone regeneration because natural bone repair process is driven by multiple factors. Particularly, angiogenesis is essential for osteogenesis and requires more than just one factor (e.g., Vascular Endothelial Growth Factor, VEGF). Therefore, we developed a novel mesoporous silicate nanoparticles (MSNs) incorporated-3D nanofibrous gelatin (GF) scaffold for dual-delivery of BMP2 and deferoxamine (DFO). DFO is a hypoxia-mimetic drug that can activate hypoxia-inducible factor-1 alpha (HIF-1α), and trigger subsequent angiogenesis. Sustained BMP2 release system was achieved through encapsulation into large-pored MSNs, while the relative short-term release of DFO was engineered through covalent conjugation with chitosan to reduce its cytotoxicity and elongate its half-life. Both MSNs and DFO were incorporated onto a porous 3D GF scaffold to serve as a biomimetic osteogenic microenvironment. Our data indicated that DFO and BMP2 were released from a scaffold at different release rates (10 vs 28 days) yet maintained their angiogenic and osteogenic ability, respectively. Importantly, our data indicated that the released DFO significantly improved BMP2-induced osteogenic differentiation where the dose/duration was important for its effects in both mouse and human stem cell models. Thus, we developed a novel and tunable MSNs/GF 3D scaffold-mediated dual-drug delivery system and studied the potential application of the both FDA-approved DFO and BMP2 for bone tissue engineering.
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Affiliation(s)
- Qingqing Yao
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA; School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, China; Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yangxi Liu
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
| | - Balaranjan Selvaratnam
- Department of Chemistry, University of South Dakota, 414 E. Clark Street, Vermillion 57069, SD, USA
| | - Ranjit T Koodali
- Department of Chemistry, University of South Dakota, 414 E. Clark Street, Vermillion 57069, SD, USA
| | - Hongli Sun
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA.
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Maxillary Bone Regeneration Based on Nanoreservoirs Functionalized ε-Polycaprolactone Biomembranes in a Mouse Model of Jaw Bone Lesion. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7380389. [PMID: 29682553 PMCID: PMC5846386 DOI: 10.1155/2018/7380389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/20/2017] [Accepted: 11/27/2017] [Indexed: 01/08/2023]
Abstract
Current approaches of regenerative therapies constitute strategies for bone tissue reparation and engineering, especially in the context of genetical diseases with skeletal defects. Bone regeneration using electrospun nanofibers' implant has the following objectives: bone neoformation induction with rapid healing, reduced postoperative complications, and improvement of bone tissue quality. In vivo implantation of polycaprolactone (PCL) biomembrane functionalized with BMP-2/Ibuprofen in mouse maxillary defects was followed by bone neoformation kinetics evaluation using microcomputed tomography. Wild-Type (WT) and Tabby (Ta) mice were used to compare effects on a normal phenotype and on a mutant model of ectodermal dysplasia (ED). After 21 days, no effect on bone neoformation was observed in Ta treated lesion (4% neoformation compared to 13% in the control lesion). Between the 21st and the 30th days, the use of biomembrane functionalized with BMP-2/Ibuprofen in maxillary bone lesions allowed a significant increase in bone neoformation peaks (resp., +8% in mutant Ta and +13% in WT). Histological analyses revealed a neoformed bone with regular trabecular structure, areas of mineralized bone inside the membrane, and an improved neovascularization in the treated lesion with bifunctionalized membrane. In conclusion, PCL functionalized biomembrane promoted bone neoformation, this effect being modulated by the Ta bone phenotype responsible for an alteration of bone response.
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Codd R, Richardson-Sanchez T, Telfer TJ, Gotsbacher MP. Advances in the Chemical Biology of Desferrioxamine B. ACS Chem Biol 2018; 13:11-25. [PMID: 29182270 DOI: 10.1021/acschembio.7b00851] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Desferrioxamine B (DFOB) was discovered in the late 1950s as a hydroxamic acid metabolite of the soil bacterium Streptomyces pilosus. The exquisite affinity of DFOB for Fe(III) identified its potential for removing excess iron from patients with transfusion-dependent hemoglobin disorders. Many studies have used semisynthetic chemistry to produce DFOB adducts with new properties and broad-ranging functions. More recent approaches in chemical biology have revealed some nuances of DFOB biosynthesis and discovered new DFOB-derived drugs and radiometal imaging agents. The current and potential applications of DFOB continue to inspire a rich body of chemical biology research focused on this bacterial metabolite.
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Affiliation(s)
- Rachel Codd
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Tomas Richardson-Sanchez
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Thomas J. Telfer
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Michael P. Gotsbacher
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
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