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Chen J, Yu L, Gao T, Dong X, Li S, Liu Y, Yang J, Xia K, Yu Y, Li Y, Wang S, Fan Z, Deng H, Guo W. Nanofiber-induced hierarchically-porous magnesium phosphate bone cements accelerate bone regeneration by inhibiting Notch signaling. Bioact Mater 2024; 37:459-476. [PMID: 38698920 PMCID: PMC11063995 DOI: 10.1016/j.bioactmat.2024.03.021] [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: 12/24/2023] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 05/05/2024] Open
Abstract
Magnesium phosphate bone cements (MPC) have been recognized as a viable alternative for bone defect repair due to their high mechanical strength and biodegradability. However, their poor porosity and permeability limit osteogenic cell ingrowth and vascularization, which is critical for bone regeneration. In the current study, we constructed a novel hierarchically-porous magnesium phosphate bone cement by incorporating extracellular matrix (ECM)-mimicking electrospun silk fibroin (SF) nanofibers. The SF-embedded MPC (SM) exhibited a heterogeneous and hierarchical structure, which effectively facilitated the rapid infiltration of oxygen and nutrients as well as cell ingrowth. Besides, the SF fibers improved the mechanical properties of MPC and neutralized the highly alkaline environment caused by excess magnesium oxide. Bone marrow stem cells (BMSCs) adhered excellently on SM, as illustrated by formation of more pseudopodia. CCK8 assay showed that SM promoted early proliferation of BMSCs. Our study also verified that SM increased the expression of OPN, RUNX2 and BMP2, suggesting enhanced osteogenic differentiation of BMSCs. We screened for osteogenesis-related pathways, including FAK signaing, Wnt signaling and Notch signaling, and found that SM aided in the process of bone regeneration by suppressing the Notch signaling pathway, proved by the downregulation of NICD1, Hes1 and Hey2. In addition, using a bone defect model of rat calvaria, the study revealed that SM exhibited enhanced osteogenesis, bone ingrowth and vascularization compared with MPC alone. No adverse effect was found after implantation of SM in vivo. Overall, our novel SM exhibited promising prospects for the treatment of critical-sized bone defects.
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Affiliation(s)
- Jingteng Chen
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ling Yu
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Tian Gao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Bone and Soft Tissue Tumor, Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Xiangyang Dong
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan, 430079, China
| | - Shiyu Li
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yinchu Liu
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jian Yang
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Kezhou Xia
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yaru Yu
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yingshuo Li
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Sen Wang
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - ZhengFu Fan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Bone and Soft Tissue Tumor, Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Hongbing Deng
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan, 430079, China
| | - Weichun Guo
- Department of Spine Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
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Bai Y, Wang Z, He X, Zhu Y, Xu X, Yang H, Mei G, Chen S, Ma B, Zhu R. Application of Bioactive Materials for Osteogenic Function in Bone Tissue Engineering. SMALL METHODS 2024:e2301283. [PMID: 38509851 DOI: 10.1002/smtd.202301283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/04/2023] [Indexed: 03/22/2024]
Abstract
Bone tissue defects present a major challenge in orthopedic surgery. Bone tissue engineering using multiple versatile bioactive materials is a potential strategy for bone-defect repair and regeneration. Due to their unique physicochemical and mechanical properties, biofunctional materials can enhance cellular adhesion, proliferation, and osteogenic differentiation, thereby supporting and stimulating the formation of new bone tissue. 3D bioprinting and physical stimuli-responsive strategies have been employed in various studies on bone regeneration for the fabrication of desired multifunctional biomaterials with integrated bone tissue repair and regeneration properties. In this review, biomaterials applied to bone tissue engineering, emerging 3D bioprinting techniques, and physical stimuli-responsive strategies for the rational manufacturing of novel biomaterials with bone therapeutic and regenerative functions are summarized. Furthermore, the impact of biomaterials on the osteogenic differentiation of stem cells and the potential pathways associated with biomaterial-induced osteogenesis are discussed.
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Affiliation(s)
- Yuxin Bai
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Zhaojie Wang
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Xiaolie He
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Yanjing Zhu
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Xu Xu
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Huiyi Yang
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Guangyu Mei
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Shengguang Chen
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
- Department of Endocrinology and Metabolism, Gongli Hospital of Shanghai Pudong New Area, Shanghai, 200135, China
| | - Bei Ma
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Rongrong Zhu
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, School of Life Science and Technology, School of Medicine, Tongji University, Shanghai, 200065, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai, 200065, China
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3
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Liu G, Wei J, Xiao W, Xie W, Ru Q, Chen L, Wu Y, Mobasheri A, Li Y. Insights into the Notch signaling pathway in degenerative musculoskeletal disorders: Mechanisms and perspectives. Biomed Pharmacother 2023; 169:115884. [PMID: 37981460 DOI: 10.1016/j.biopha.2023.115884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023] Open
Abstract
Degenerative musculoskeletal disorders are a group of age-related diseases of the locomotive system that severely affects the patient's ability to work and cause adverse sequalae such as fractures and even death. The incidence and prevalence of degenerative musculoskeletal disorders is rising owing to the aging of the world's population. The Notch signaling pathway, which is expressed in almost all organ systems, extensively regulates cell proliferation and differentiation as well as cellular fate. Notch signaling shows increased activity in degenerative musculoskeletal disorders and retards the progression of degeneration to some extent. The review focuses on four major degenerative musculoskeletal disorders (osteoarthritis, intervertebral disc degeneration, osteoporosis, and sarcopenia) and summarizes the pathophysiological functions of Notch signaling in these disorders, especially its role in stem/progenitor cells in each disorder. Finally, a conclusion will be presented to explore the research and application of the perspectives on Notch signaling in degenerative musculoskeletal disorders.
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Affiliation(s)
- Gaoming Liu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410011, China
| | - Jun Wei
- Department of Clinical Medical School, Xinjiang Medical University, Urumqi 830054, China
| | - Wenfeng Xiao
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410011, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Wenqing Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410011, China
| | - Qin Ru
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China
| | - Lin Chen
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China
| | - Yuxiang Wu
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China.
| | - Ali Mobasheri
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland; Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania; Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China; World Health Organization Collaborating Center for Public Health Aspects of Musculoskeletal Health and Aging, Université de Liège, Liège, Belgium.
| | - Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410011, China; Department of Clinical Medical School, Xinjiang Medical University, Urumqi 830054, China.
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Hu J, Jiang Z, Zhang J, Yang G. Application of silk fibroin coatings for biomaterial surface modification: a silk road for biomedicine. J Zhejiang Univ Sci B 2023; 24:943-956. [PMID: 37961798 PMCID: PMC10646393 DOI: 10.1631/jzus.b2300003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/18/2023] [Indexed: 11/15/2023]
Abstract
Silk fibroin (SF) as a natural biopolymer has become a popular material for biomedical applications due to its minimal immunogenicity, tunable biodegradability, and high biocompatibility. Nowadays, various techniques have been developed for the applications of SF in bioengineering. Most of the literature reviews focus on the SF-based biomaterials and their different forms of applications such as films, hydrogels, and scaffolds. SF is also valuable as a coating on other substrate materials for biomedicine; however, there are few reviews related to SF-coated biomaterials. Thus, in this review, we focused on the surface modification of biomaterials using SF coatings, demonstrated their various preparation methods on substrate materials, and introduced the latest procedures. The diverse applications of SF coatings for biomedicine are discussed, including bone, ligament, skin, mucosa, and nerve regeneration, and dental implant surface modification. SF coating is conducive to inducing cell adhesion and migration, promoting hydroxyapatite (HA) deposition and matrix mineralization, and inhibiting the Notch signaling pathway, making it a promising strategy for bone regeneration. In addition, SF-coated composite scaffolds can be considered prospective candidates for ligament regeneration after injury. SF coating has been proven to enhance the mechanical properties of the substrate material, and render integral stability to the dressing material during the regeneration of skin and mucosa. Moreover, SF coating is a potential strategy to accelerate nerve regeneration due to its dielectric properties, mechanical flexibility, and angiogenesis promotion effect. In addition, SF coating is an effective and popular means for dental implant surface modification to promote osteogenesis around implants made of different materials. Thus, this review can be of great benefit for further improvements in SF-coated biomaterials, and will undoubtedly contribute to clinical transformation in the future.
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Affiliation(s)
- Jinxing Hu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China
| | - Zhiwei Jiang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China
| | - Jing Zhang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China
| | - Guoli Yang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
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5
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Lu T, Ma N, He F, Liang Y, Ye J. Enhanced osteogenesis and angiogenesis of biphasic calcium phosphate scaffold by synergistic effect of silk fibroin coating and zinc doping. J Biomater Appl 2023; 37:1007-1017. [PMID: 36066873 DOI: 10.1177/08853282221124367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biphasic calcium phosphate (BCP) scaffold has been widely applied to bone regeneration because of its good biocompatibility and bone conduction property. However, the low mechanical strength and the lack of angiogenic and osteogenic induction properties have restricted its application in bone tissue regeneration. In this study, we combined zinc (Zn2+) doping and silk fibroin (SF) coating with expectation to enhance compressive strength, osteogenesis and angiogenesis of BCP scaffolds. The phase composition, morphology, porosity, compressive strength, in vitro degradation and cell behaviors were investigated systematically. Results showed that the scaffold coated with SF exhibited almost 3 times of compressive strength without compromising its porosity compared with the uncoated scaffold. Zn2+ doping and SF coating synergistically enhanced the alkaline phosphatase activity and osteogenesis-related genes expression of mouse bone mesenchymal stem cells (mBMSCs). Furthermore, SF coating notably improved the proliferation, cell viability and in vitro angiogenesis of human umbilical vein endothelial cells (HUVECs). This work provides a novel way to modify BCP scaffolds simultaneously with enhancing mechanical strength and biological properties.
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Affiliation(s)
- Teliang Lu
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, 26467South China University of Technology, Guangzhou, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, China.,Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ning Ma
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, 26467South China University of Technology, Guangzhou, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, China
| | - Fupo He
- School of Electromechanical Engineering, 47870Guangdong University of Technology, Guangzhou, China
| | - Yongyi Liang
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, 26467South China University of Technology, Guangzhou, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, China
| | - Jiandong Ye
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, 26467South China University of Technology, Guangzhou, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, China.,Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and Reconstruction, 26467South China University of Technology, Guangzhou, China
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6
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Zhang HJ, Li FS, Wang F, Wang H, He TC, Reid RR, He BC, Xia Q. Transgenic PDGF-BB sericin hydrogel potentiates bone regeneration of BMP9-stimulated mesenchymal stem cells through a crosstalk of the Smad-STAT pathways. Regen Biomater 2022; 10:rbac095. [PMID: 36683747 PMCID: PMC9847547 DOI: 10.1093/rb/rbac095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/08/2022] [Accepted: 11/24/2022] [Indexed: 12/05/2022] Open
Abstract
Silk as a natural biomaterial is considered as a promising bone substitute in tissue regeneration. Sericin and fibroin are the main components of silk and display unique features for their programmable mechanical properties, biocompatibility, biodegradability and morphological plasticity. It has been reported that sericin recombinant growth factors (GFs) can support cell proliferation and induce stem cell differentiation through cross-talk of signaling pathways during tissue regeneration. The transgenic technology allows the productions of bioactive heterologous GFs as fusion proteins with sericin, which are then fabricated into solid matrix or hydrogel format. Herein, using an injectable hydrogel derived from transgenic platelet-derived GF (PDGF)-BB silk sericin, we demonstrated that the PDGF-BB sericin hydrogel effectively augmented osteogenesis induced by bone morphogenetic protein (BMP9)-stimulated mesenchymal stem cells (MSCs) in vivo and in vitro, while inhibiting adipogenic differentiation. Further gene expression and protein-protein interactions studies demonstrated that BMP9 and PDGF-BB synergistically induced osteogenic differentiation through the cross-talk between Smad and Stat3 pathways in MSCs. Thus, our results provide a novel strategy to encapsulate osteogenic factors and osteoblastic progenitors in transgenic sericin-based hydrogel for robust bone tissue engineering.
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Affiliation(s)
- Hui-Jie Zhang
- Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing 400016, China
| | - Fu-Shu Li
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
- Department of Pharmacy, Chongqing Emergency Medical Center, Chongqing University Central Hospital, Chongqing 400014, China
| | - Feng Wang
- Biological Science Research Center, Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing 400715, China
| | - Han Wang
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
- Department of Pharmacy, Panzhou People’s Hospital, Guizhou 553599, China
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Russell R Reid
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Laboratory of Craniofacial Biology and Development, Department of Surgery Section of Plastic Surgery, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Bai-Cheng He
- Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing 400016, China
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Qingyou Xia
- Biological Science Research Center, Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing 400715, China
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7
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Wu H, Lin K, Zhao C, Wang X. Silk fibroin scaffolds: A promising candidate for bone regeneration. Front Bioeng Biotechnol 2022; 10:1054379. [PMID: 36507269 PMCID: PMC9732393 DOI: 10.3389/fbioe.2022.1054379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022] Open
Abstract
It remains a big challenge in clinical practice to repair large-sized bone defects and many factors limit the application of autografts and allografts, The application of exogenous scaffolds is an alternate strategy for bone regeneration, among which the silk fibroin (SF) scaffold is a promising candidate. Due to the advantages of excellent biocompatibility, satisfying mechanical property, controllable biodegradability and structural adjustability, SF scaffolds exhibit great potential in bone regeneration with the help of well-designed structures, bioactive components and functional surface modification. This review will summarize the cell and tissue interaction with SF scaffolds, techniques to fabricate SF-based scaffolds and modifications of SF scaffolds to enhance osteogenesis, which will provide a deep and comprehensive insight into SF scaffolds and inspire the design and fabrication of novel SF scaffolds for superior osteogenic performance. However, there still needs more comprehensive efforts to promote better clinical translation of SF scaffolds, including more experiments in big animal models and clinical trials. Furthermore, deeper investigations are also in demand to reveal the degradation and clearing mechanisms of SF scaffolds and evaluate the influence of degradation products.
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Affiliation(s)
- Hao Wu
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China,Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China,Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, China
| | - Kaili Lin
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China,Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China,Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, China
| | - Cancan Zhao
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China,Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China,Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, China,*Correspondence: Cancan Zhao, ; Xudong Wang,
| | - Xudong Wang
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China,Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China,Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, China,*Correspondence: Cancan Zhao, ; Xudong Wang,
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8
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Zhang D, Guo X, Zong X, Du H, Zhao J, Du L, Cao C, Jin X, Song G. Study on the difference of osteogenesis and Notch signaling pathway expression in biphasic calcium-phosphorus ceramic granule materials with different microstructure. J Biomed Mater Res B Appl Biomater 2022; 110:2028-2038. [PMID: 35377532 DOI: 10.1002/jbm.b.35057] [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: 10/28/2021] [Revised: 02/27/2022] [Accepted: 03/03/2022] [Indexed: 11/12/2022]
Abstract
Different microstructures including micropore diameter, micropore volume, and micropore area of biphasic calcium phosphate (BCP, hydroxyapatite: β-tricalcium phosphate = 8:2) ceramics granules were obtained by varying their sintering temperatures. Sprague-Dawley rat bone marrow-derived stem cells (BMSCs) were co-cultured with BCPs in vitro study and the BMSCs showed different degrees of proliferative activity under the influence of three materials. Cell proliferation and vitality were assessed. Three kinds of BCPs were implanted in the dorsal muscle of beagle dogs. At 1, 2, and 3 months, histological analyses were conducted to estimate the rate of osteogenesis. Expression of Notch pathway genes and osteogenic-related genes were detected by quantitative real-time polymerase chain reaction (q-rtPCR). The proportion of osteogenesis area increased to:48.75 ± 4.20%, 29.48 ± 1.55%, and 26.58 ± 3.86% at 3 months after the implantation (1050, 1150, 1250). Significant differences were observed in the upregulation of Notch pathway genes among different BCPs. BCPs with different micropore diameters have different ectopic osteogenesis effects and led to up-regulation of the Notch signaling pathway genes to different extents.
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Affiliation(s)
- Dong Zhang
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoshuang Guo
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xianlei Zong
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Hong Du
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Jingyi Zhao
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Le Du
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Chunyan Cao
- Animal Lab Center, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaolei Jin
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Guodong Song
- 16th Department, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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9
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Enhanced osteogenic effect in reduced BMP-2 doses with siNoggin transfected pre-osteoblasts in 3D silk scaffolds. Int J Pharm 2022; 612:121352. [PMID: 34883207 DOI: 10.1016/j.ijpharm.2021.121352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/27/2021] [Accepted: 12/02/2021] [Indexed: 01/02/2023]
Abstract
Bone morphogenetic proteins (BMPs), especially BMP-2, are being increasingly used in bone tissue engineering due to its osteo-inductive effects. Although recombinant human BMP-2 (rhBMP-2) was approved by Food and Drug Administration (FDA) to use for bone repair, its high doses cause undesired side effects. In order to reduce the BMP-2 dose for enhanced osteogenic differentiation, in this study we decided to suppress the synthesis of Noggin protein, the primary antagonist of BMP-2, on the MC3T3-E1 cells using Noggin targeted small interfering RNA (siRNA). Unlike other studies, Noggin siRNA (siNoggin) transfected cells were seeded on silk scaffolds, and osteogenic differentiation was investigated for a long-term period (21 days) with MTT, qPCR, SEM/EDS, and histological analysis. Besides, siNoggin transfected MC3T3-E1 cells were evaluated as a new cell source for tissue engineering studies. It was determined that Nog gene expression was suppressed in the siNoggin group and Ocn gene expression increased 5-fold compared to the control group (*p < 0.05). The osteogenic effect of BMP-2 was clearly observed in siNoggin transfected cells. According to the SEM/EDS analysis, the siNoggin group has mineral structures clustered on cells, which contain intense Ca and P elements. Histological staining showed that the siNoggin group has a more intense mineralized area than that of the control group. In conclusion, this study indicated that Noggin silencing by siRNA induces osteogenic differentiation in reduced BMP-2 doses for scaffold-based bone regeneration. This non-gene integration strategy has as a safe therapeutic potential to enhance tissue regeneration.
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Burger D, Beaumont M, Rosenau T, Tamada Y. Porous Silk Fibroin/Cellulose Hydrogels for Bone Tissue Engineering via a Novel Combined Process Based on Sequential Regeneration and Porogen Leaching. Molecules 2020; 25:E5097. [PMID: 33153040 PMCID: PMC7663655 DOI: 10.3390/molecules25215097] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/17/2020] [Accepted: 10/26/2020] [Indexed: 12/19/2022] Open
Abstract
Scaffolds used for bone tissue engineering need to have a variety of features to accommodate bone cells. The scaffold should mimic natural bone, it should have appropriate mechanical strength, support cell differentiation to the osteogenic lineage, and offer adequate porosity to allow vascularization and bone in-growth. In this work, we aim at developing a new process to fabricate such materials by creating a porous composite material made of silk fibroin and cellulose as a suitable scaffold of bone tissue engineering. Silk fibroin and cellulose are both dissolved together in N,N-dimethylacetamide/LiCl and molded to a porous structure using NaCl powder. The hydrogels are prepared by a sequential regeneration process: cellulose is solidified by water vapor treatment, while the remaining silk fibroin in the hydrogel is insolubilized by methanol, which leads to a cellulose framework structure embedded in a silk fibroin matrix. Finally, the hydrogels are soaked in water to dissolve the NaCl for making a porous structure. The cellulose composition results in improving the mechanical properties for the hydrogels in comparison to the silk fibroin control material. The pore size and porosity are estimated at around 350 µm and 70%, respectively. The hydrogels support the differentiation of MC3T3 cells to osteoblasts and are expected to be a good scaffold for bone tissue engineering.
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Affiliation(s)
- Dennis Burger
- Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan;
| | - Marco Beaumont
- Institute of Chemistry of Renewable Resources, Department for Chemistry, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Thomas Rosenau
- Institute of Chemistry of Renewable Resources, Department for Chemistry, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Yasushi Tamada
- Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan;
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Lovati AB, Lopa S, Bottagisio M, Talò G, Canciani E, Dellavia C, Alessandrino A, Biagiotti M, Freddi G, Segatti F, Moretti M. Peptide-Enriched Silk Fibroin Sponge and Trabecular Titanium Composites to Enhance Bone Ingrowth of Prosthetic Implants in an Ovine Model of Bone Gaps. Front Bioeng Biotechnol 2020; 8:563203. [PMID: 33195126 PMCID: PMC7604365 DOI: 10.3389/fbioe.2020.563203] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 09/21/2020] [Indexed: 12/18/2022] Open
Abstract
Osteoarthritis frequently requires arthroplasty. Cementless implants are widely used in clinics to replace damaged cartilage or missing bone tissue. In cementless arthroplasty, the risk of aseptic loosening strictly depends on implant stability and bone–implant interface, which are fundamental to guarantee the long-term success of the implant. Ameliorating the features of prosthetic materials, including their porosity and/or geometry, and identifying osteoconductive and/or osteoinductive coatings of implant surfaces are the main strategies to enhance the bone-implant contact surface area. Herein, the development of a novel composite consisting in the association of macro-porous trabecular titanium with silk fibroin (SF) sponges enriched with anionic fibroin-derived polypeptides is described. This composite is applied to improve early bone ingrowth into the implant mesh in a sheep model of bone defects. The composite enables to nucleate carbonated hydroxyapatite and accelerates the osteoblastic differentiation of resident cells, inducing an outward bone growth, a feature that can be particularly relevant when applying these implants in the case of poor osseointegration. Moreover, the osteoconductive properties of peptide-enriched SF sponges support an inward bone deposition from the native bone towards the implants. This technology can be exploited to improve the biological functionality of various prosthetic materials in terms of early bone fixation and prevention of aseptic loosening in prosthetic surgery.
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Affiliation(s)
- Arianna B Lovati
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy
| | - Silvia Lopa
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy
| | - Marta Bottagisio
- IRCCS Istituto Ortopedico Galeazzi, Laboratory of Clinical Chemistry and Microbiology, Milan, Italy
| | - Giuseppe Talò
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy
| | - Elena Canciani
- Ground Sections Laboratory, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Claudia Dellavia
- Ground Sections Laboratory, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | | | | | | | | | - Matteo Moretti
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy.,Regenerative Medicine Technologies Lab, Ente Ospedaliero Cantonale, Lugano, Switzerland
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12
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Wenhao Z, Zhang T, Yan J, Li Q, Xiong P, Li Y, Cheng Y, Zheng Y. In vitro and in vivo evaluation of structurally-controlled silk fibroin coatings for orthopedic infection and in-situ osteogenesis. Acta Biomater 2020; 116:223-245. [PMID: 32889111 DOI: 10.1016/j.actbio.2020.08.040] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/20/2020] [Accepted: 08/26/2020] [Indexed: 01/19/2023]
Abstract
Biomedical device-associated infections (BAI) and osteosynthesis are two main complications following the orthopedic implant surgery, especially while infecting bacteria form a mature biofilm, which can protect the organisms from the host immune system and antibiotic therapy. Comparing with the single antibiotics therapeutic method, the combination of silver nanoparticles (AgNPs) and conventional antibiotics exert a high level of antibacterial activity. Nevertheless, one major issue that extremely restricts the potential application of AgNP/antiviotics is the uncontrolled release. Moreover, the lack of osteogenic ability may cause the osteosynthesis. Thus, herein we fabricated a structure-controlled drug-loaded silk fibroin (SF) coating that can achieve the size and release control of AgNPs and high efficient osteogenesis. Three comparative SF-based coatings were fabricated: α-structured coating (α-helices 32.7%,), m-structured coating (β-sheets 28.3%) and β-structured coating (β-sheets 41%). Owning to the high content of α-helices structure and small AgNPs (20 nm), α-structured coating displayed better protein adsorption and hydrophilicity, as well as pH-dependent and long-lasting antibacterial performance. In vitro studies demonstrated that α coating showed biocompatibility (cellular attachment, spreading and proliferation), high ALP expression, collagen secretion and calcium mineralization. Moreover, after one month subcutaneous implantation in vivo, α-structured coating elicited minimal, comparable inflammatory response. Additionally, in a rabbit femoral defect model, α-structured coating displayed a significant improvement on the generation of new-born bone and bonding between the new bone and the tissue, implying a rapid and durable osteointegration. Expectedly, this optimized structure-controlled SF-based coating can be an alternative and prospective solution for the current challenges in orthopedics. STATEMENT OF SIGNIFICANCE: In this study, an AgNPs/Gentamycin-loaded structured-controlled silk fibroin coatings were constructed on Ti implant's surface to guarantee the success of implantation even in the face of bacterial infection. In comparison, the α-structured coating had the lowest content of β-sheets structure (19.0%) and the smallest particle size of AgNPs (~ 20 nm), and owned pH-responsive characteristic due to reversible α-helices structural. Thanks to pH-responsive release of Ag+, the α-structure coating could effectively inhibit adhesive bacteria and kill planktonic bacteria by releasing a large amount of reactive oxygen radicals. Through in vitro biological results (cell proliferation, differentiation and osteogenic gene expression) and in vivo rabbit femur implantation results, the α-structure coating had good biocompatible and osteogenic properties.
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Affiliation(s)
- Zhou Wenhao
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China; Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Teng Zhang
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China
| | - Jianglong Yan
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - QiYao Li
- Department of Biomedical Engineering, Materials Research Institute, Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, PA 16802, United States
| | - Panpan Xiong
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yangyang Li
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yan Cheng
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
| | - Yufeng Zheng
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China.
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13
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Lee W, Choi JH, Lee S, Song JE, Khang G. Fabrication and Characterization of Silk Fibroin Microfiber-Incorporated Bone Marrow Stem Cell Spheroids to Promote Cell-Cell Interaction and Osteogenesis. ACS OMEGA 2020; 5:18021-18027. [PMID: 32743175 PMCID: PMC7391361 DOI: 10.1021/acsomega.0c01415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 07/02/2020] [Indexed: 05/04/2023]
Abstract
In this study, silk fibroin microfiber (mSF) was applied to assist spheroid assemblies of rBMSCs (rabbit bone marrow stem cells) (S/B). Alkaline hydrolysis was induced with different times and conditions to manufacture the various sizes of mSF. The mSF was incorporated in the rBMSC with different amounts to optimize proper content for spheroid assembly. The formation of the S/B was confirmed under optical microscopy and SEM. Proliferation and viability were characterized by CCK-8 and live/dead staining. Osteogenesis was analyzed with ALP (alkaline phosphatase) activity studies and real-time polymerase chain reaction. The S/B was successfully produced and displayed uniformly distributed cells and mSF with the presence of a gap in the structure. Proliferation and viability of the S/B significantly increased when compared to rBMSC spheroids (B), which is potentially due to the enhanced transportation of oxygen and nutrients to the cells located in the core region. Additionally, ALP activity and osteogenic markers were significantly upregulated in the optimized S/B under osteogenic media conditions. Overall, a hybrid-spheroid system with a simple 3D cell culture platform provides a potential approach for engineering therapeutic stem cells.
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Guo X, Jiang H, Zong X, Du L, Zhao J, Zhang D, Song G, Jin X. The implication of the notch signaling pathway in biphasic calcium phosphate ceramic‐induced ectopic bone formation: A preliminary experiment. J Biomed Mater Res A 2020; 108:1035-1044. [DOI: 10.1002/jbm.a.36878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 12/31/2019] [Accepted: 01/02/2020] [Indexed: 01/15/2023]
Affiliation(s)
- Xiaoshuang Guo
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
| | - Haiyue Jiang
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
| | - Xianlei Zong
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
| | - Le Du
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
| | - Jingyi Zhao
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
| | - Dong Zhang
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
| | - Guodong Song
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
| | - Xiaolei Jin
- 16th Department, Plastic Surgery HospitalPeking Union Medical College, Chinese Academy of Medical Sciences Beijing China
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15
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Ang SL, Shaharuddin B, Chuah JA, Sudesh K. Electrospun poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)/silk fibroin film is a promising scaffold for bone tissue engineering. Int J Biol Macromol 2020; 145:173-188. [DOI: 10.1016/j.ijbiomac.2019.12.149] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/08/2019] [Accepted: 12/17/2019] [Indexed: 01/03/2023]
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16
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Functionalization of Silk Fibers by PDGF and Bioceramics for Bone Tissue Regeneration. COATINGS 2019. [DOI: 10.3390/coatings10010008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Bone regeneration is a complex, well-organized physiological process of bone formation observed during normal fracture healing and involved in continuous remodeling throughout adult life. An ideal medical device for bone regeneration requires interconnected pores within the device to allow for penetration of blood vessels and cells, enabling material biodegradation and bone ingrowth. Additional mandatory characteristics include an excellent resorption rate, a 3D structure similar to natural bone, biocompatibility, and customizability to multiple patient-specific geometries combined with adequate mechanical strength. Therefore, endless silk fibers were spun from native silk solution isolated from silkworm larvae and functionalized with osteoconductive bioceramic materials. In addition, transgenic silkworms were generated to functionalize silk proteins with human platelet-derived growth factor (hPDGF). Both, PDGF-silk and bioceramic modified silk were then assembled into 3D textile implants using an additive manufacturing approach. Textile implants were characterized in terms of porosity, compressive strength, and cyclic load. In addition, osteogenic differentiation of mesenchymal stem cells was evaluated. Silk fiber-based 3D textile implants showed good cytocompatibility and stem cells cultured on bioceramic material functionalized silk implants were differentiating into bone cells. Thus, functionalized 3D interconnected porous textile scaffolds were shown to be promising biomaterials for bone regeneration.
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17
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Nonmineralized and Mineralized Silk Fibroin/Gelatin Hybrid Scaffolds: Chacterization and Cytocompatibility In Vitro for Bone-Tissue Engineering. J Craniofac Surg 2019; 31:416-419. [PMID: 31764552 DOI: 10.1097/scs.0000000000006020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
In this study, nonmineralized silk fibroin/gelatin (SF/G) hybrid scaffolds and the mineralized SF/G/hydroxyapatite (SF/G/HA) hybrid scaffolds were fabricated using vacuum freeze-drying method and biomineralization technique. The morphology and mechanical properties of the 2 hybrid scaffolds were characterized. Furthermore, the cytotoxic profiles of the hybrid scaffolds were investigated in vitro by seeding the human osteoblast cells (hFOB1.19). The 2 hybrid scaffolds were both highly porous and the pore sizes of the SF/G as well as SF/G/HA hybrid scaffolds were 260 ± 58 μm and 210 ± 35 μm, respectively. Compared with the SF/G hybrid scaffold, the SF/G/HA hybrid scaffolds exhibited significantly enhanced compressive strength and modulus. Significant early cell adhesion and proliferation on the SF/G hybrid scaffolds were observed, while SF/G/HA hybrid scaffolds effectively improved osteogenic differentiation of hFOB1.19 after 10 days of coculture. The results confirmed that the 2 hybrid scaffolds were both cytocompatible and had almost no negative effects on the hFOB1.19 in vitro. However, the SF/G/HA hybrid scaffolds tended to be more promising for application in bone-tissue engineering with good mechanical property and osteogenic differentiation.
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18
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Xu Y, Li L, Tang Y, Yang J, Jin Y, Ma C. Icariin promotes osteogenic differentiation by suppressing Notch signaling. Eur J Pharmacol 2019; 865:172794. [PMID: 31733213 DOI: 10.1016/j.ejphar.2019.172794] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 10/31/2019] [Accepted: 11/12/2019] [Indexed: 02/08/2023]
Abstract
Osteoporosis is a bone disease characterized by microarchitectural deterioration, low bone mass, and increased risk of fractures. Icariin (ICA), an active flavonoid glucoside isolated from Herba epimedii (HEF), is a potent stimulator of osteogenic differentiation and has potential applications for preventing bone loss in postmenopausal women. However, the molecular mechanism underlying the osteogenic effect of ICA has not yet been fully elucidated. In this study, we report that ICA treatment significantly elevated gene expression of osteogenic markers and increased alkaline phosphatase (ALP) activity in MC3T3-E1 and C3H10T1/2 cells. RNA sequencing revealed that the expression of several genes involved in the Notch pathway was decreased following ICA treatment. Real-time PCR further demonstrated that the mRNA levels of Notch ligands Jagged-1 (Jag1), lunatic fringe (Lfng), and Notch signaling downstream target gene Hey-1 were significantly decreased following ICA treatment. In addition, we found that constitutive activation of Notch signaling through overexpression of the intracellular domain of Notch (NICD) fully blocked ICA-induced osteoblast differentiation. Moreover, inhibiting Notch signaling with DAPT markedly enhanced osteogenic differentiation following ICA treatment. We found that the mRNA levels of Notch pathway molecules (Lfng, Notch1, Rbpjk and Nfatc1) were increased in ovariectomized (OVX) mice, and administration of ICA significantly decreased the expression of these genes. Our results suggest that ICA promotes osteogenic differentiation in vitro and alleviates osteoporosis in vivo through inhibition of the Notch signaling pathway.
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Affiliation(s)
- Yuexin Xu
- Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China; Department of Medical Genetics, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China; Department of Gynaecology and Obstetrics, Northern Jiangsu People's Hospital, Yangzhou, 225001, PR China
| | - Lingyun Li
- Department of Medical Genetics, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China
| | - Yuting Tang
- Department of Medical Genetics, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China
| | - Jiashu Yang
- Department of Medical Genetics, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China
| | - Yucui Jin
- Department of Medical Genetics, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China
| | - Changyan Ma
- Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China; Department of Medical Genetics, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, PR China.
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19
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Wang L, Pathak JL, Liang D, Zhong N, Guan H, Wan M, Miao G, Li Z, Ge L. Fabrication and characterization of strontium-hydroxyapatite/silk fibroin biocomposite nanospheres for bone-tissue engineering applications. Int J Biol Macromol 2019; 142:366-375. [PMID: 31593715 DOI: 10.1016/j.ijbiomac.2019.09.107] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/11/2019] [Accepted: 09/13/2019] [Indexed: 12/18/2022]
Abstract
Osteoinductive bone filling biomaterials are in high demand for effective bone defect reconstruction. In this study, we aimed to design both organic and inorganic substances containing strontium-doped hydroxyapatite/silk fibroin (SrHA/SF) biocomposite nanospheres as an osteoinductive bone defect-filling biomaterial. SrHA/SF nanospheres were prepared with different concentration of Sr using ultrasonic coprecipitation method. The nanospheres were characterized using XRD, FTIR, SEM, TEM, ICP-AES and TGA. Solid and dense SrHA/SF nanospheres with 500-700 nm size and rough surfaces were synthesized successfully. Higher crystallinity and HA/SF phase were observed with the increase in Sr-concentration. The doping of different concentration of Sr did not affect the size and surface characteristics of the nanospheres. ICP-AES data showed that Sr/Ca ratio in SrHA/SF is very close to the nominal value. Nanospheres with higher concentration of Sr did not negatively affect the biocompatibility, but enhanced viability of mesenchymal stem cells (MSCs). Moreover, SrHA/SF nanospheres showed higher osteogenic differentiation potential compared to HA/SF nanospheres as indicated by the results from ALP staining, ALP activity, and Runx2, Alp, Col-1 and Opn gene expression assay in MSCs culture. Our findings suggest this novel design of biocompatible and osteoinductive SrHA/SF biocomposite nanospheres as a potential bone defect-filling biomaterial for bone regenerative applications.
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Affiliation(s)
- Liping Wang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Janak L Pathak
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Dongliang Liang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Ningying Zhong
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Hongbing Guan
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Mianjia Wan
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Guohou Miao
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Zhengmao Li
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Linhu Ge
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China.
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20
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Wu C, Wang G, Yan Q, Wang JC, Yang H, Zou J. Silk Fibroin Regulates Osteoconduction of Hydroxyapatite in Rat Spine Fusion Model. J HARD TISSUE BIOL 2019. [DOI: 10.2485/jhtb.28.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Cenhao Wu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University
| | - Genlin Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University
| | - Qi Yan
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University
| | - Jeffrey C Wang
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California
| | - Huilin Yang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University
| | - Jun Zou
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University
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21
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Silk fibroin/hydroxyapatite composites for bone tissue engineering. Biotechnol Adv 2018; 36:68-91. [DOI: 10.1016/j.biotechadv.2017.10.001] [Citation(s) in RCA: 239] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 09/12/2017] [Accepted: 10/04/2017] [Indexed: 12/22/2022]
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22
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Natural and synthetic polymers/bioceramics/bioactive compounds-mediated cell signalling in bone tissue engineering. Int J Biol Macromol 2017; 110:88-96. [PMID: 28917940 DOI: 10.1016/j.ijbiomac.2017.09.029] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/26/2017] [Accepted: 09/12/2017] [Indexed: 12/24/2022]
Abstract
Bone is a highly integrative and dynamic tissue of the human body. It is continually remodeled by bone cells such as osteoblasts, osteoclasts. When a fraction of a bone is damaged or deformed, stem cells and bone cells under the influence of several signaling pathways regulate bone regeneration at the particular locale. Effective therapies for bone defects can be met via bone tissue engineering which employs drug delivery systems with biomaterials to enhance cellular functions by acting on signaling pathways such as Wnt, BMP, TGF-β, and Notch. This review provides the current understanding of polymers/bioceramics/bioactive compounds as scaffolds in activation of signaling pathways for the formation of bone.
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23
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Cai J, Jiang J, Mo X, Chen S. [Effect of silk fibroin/poly ( L-lactic acid-co-e-caprolactone) nanofibrous scaffold on tendon-bone healing of rabbits]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:957-962. [PMID: 29806433 DOI: 10.7507/1002-1892.201704077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To explore the effect of silk fibroin/poly( L-lactic acid-co-e-caprolactone) [SF/P(LLA-CL)] nanofibrous scaffold on tendon-bone healing of rabbits. Methods SF/P(LLA-CL) nanofibrous scaffold was fabricated by electrospinning methods. The morphology of the scaffold was observed by scanning electron microscope (SEM). Pre-osteoblasts MC3T3-E1 cells were seeded on the scaffold and cultured for 1, 3, and 5 days. Cell adhesion and proliferation were also observed by SEM. Meanwhile, twenty-four New Zealand white rabbits were randomly divided into the autogenous tendon group (control group) and the autogenous tendon wrapped with SF/P(LLA-CL) scaffold group (experimental group), with twelve rabbits in each group. An extra-articular model was established, the effect was evaluated by histological examination and mechanical testing. Results The morphology of SF/P(LLA-CL) nanofibrous scaffold was random, with a diameter of (219.4±66.5) nm. SEM showed that the MC3T3-E1 cells seeded on the scaffold were in the normal shape, growing well, and proliferating with time course. The results of histological examination showed that inflammatory cells infltrated into the graft-host bone interface at 6 weeks after operation in both groups. Besides, the width of interface showed no significant difference between groups. At 12 weeks after operation, protruding new bone tissue could be observed at the interface in the experimental group, while scar tissue but no new bone tissue could be seen at the interface in the control group. Mechanical testing showed that there was no significant difference in the failure load and the stiffness between groups at 6 weeks after operation ( P>0.05). The failure load and the stiffness in the experimental group were significantly higher than those in the control group at 12 weeks after operation ( P<0.05). Conclusion The SF/P(LLA-CL) nanofibrous scaffold has good cell biocompatibility and can effectively promote tendon-bone healing, thus providing new method for modifying graft for ACL reconstruction in the clinical practice.
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Affiliation(s)
- Jiangyu Cai
- Department of Sports Medicine and Arthroscopic Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, P.R.China
| | - Jia Jiang
- Department of Sports Medicine and Arthroscopic Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, P.R.China
| | - Xiumei Mo
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P.R.China
| | - Shiyi Chen
- Department of Sports Medicine and Arthroscopic Surgery, Huashan Hospital, Fudan University, Shanghai, 200040,
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24
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Jo YY, Kim SG, Kwon KJ, Kweon H, Chae WS, Yang WG, Lee EY, Seok H. Silk Fibroin-Alginate-Hydroxyapatite Composite Particles in Bone Tissue Engineering Applications In Vivo. Int J Mol Sci 2017; 18:ijms18040858. [PMID: 28420224 PMCID: PMC5412440 DOI: 10.3390/ijms18040858] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/28/2017] [Accepted: 04/13/2017] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to evaluate the in vivo bone regeneration capability of alginate (AL), AL/hydroxyapatite (HA), and AL/HA/silk fibroin (SF) composites. Forty Sprague Dawley rats were used for the animal experiments. Central calvarial bone (diameter: 8.0 mm) defects were grafted with AL, AL/HA, or AL/HA/SF. New bone formation was evaluated by histomorphometric analysis. To demonstrate the immunocompatibility of each group, the level of tumor necrosis factor (TNF)-α expression was studied by immunohistochemistry (IHC) and quantitative reverse transcription polymerase chain reaction (qRT-PCR) at eight weeks post implantation. Additionally, osteogenic markers, such as fibroblast growth factor (FGF)-23, osteoprotegerin (OPG), and Runt-related transcription factor (Runx2) were evaluated by qPCR or IHC at eight weeks post implantation. The AL/HA/SF group showed significantly higher new bone formation than did the control group (p = 0.044) and the AL group (p = 0.035) at four weeks post implantation. Additionally, the AL/HA/SF group showed lower relative TNF-α mRNA levels and higher FGF-23 mRNA levels than the other groups did at eight weeks post implantation. IHC results demonstrated that the AL/HA/SF group had lower TNF-α expression and higher OPG and Runx2 expression at eight weeks post implantation. Additionally, no evidence of the inflammatory reaction or giant cell formation was observed around the residual graft material. We concluded that the AL/HA/SF composite could be effective as a scaffold for bone tissue engineering.
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Affiliation(s)
- You-Young Jo
- Sericultural & Apicultural Materials Division, National Institute of Agricultural Science, Wanju 55365, Korea.
| | - Seong-Gon Kim
- Department of Oral and Maxillofacial Surgery, Gangneung-Wonju National University, Gangneung 25457, Korea.
| | - Kwang-Jun Kwon
- Department of Oral and Maxillofacial Surgery, Gangneung-Wonju National University, Gangneung 25457, Korea.
| | - HaeYong Kweon
- Sericultural & Apicultural Materials Division, National Institute of Agricultural Science, Wanju 55365, Korea.
| | - Weon-Sik Chae
- Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu 41566, Korea.
| | - Won-Geun Yang
- Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu 41566, Korea.
| | - Eun-Young Lee
- Department of Oral and Maxillofacial Surgery, Chungbuk National University College of Medicine, Cheongju 28644, Korea.
- Department of Oral and Maxillofacial Surgery, Chungbuk National University Hospital, Cheongju 28644, Korea.
| | - Hyun Seok
- Department of Oral and Maxillofacial Surgery, Gangneung-Wonju National University, Gangneung 25457, Korea.
- Department of Oral and Maxillofacial Surgery, Chungbuk National University Hospital, Cheongju 28644, Korea.
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Midha S, Chameettachal S, Dey E, Ghosh S. Nonmulberry Silk Braids Direct Terminal Osteocytic Differentiation through Activation of Wnt-Signaling. ACS Biomater Sci Eng 2017; 3:1062-1074. [PMID: 33429580 DOI: 10.1021/acsbiomaterials.7b00006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Silk polymers can regulate osteogenesis by mimicking some features of the extracellular matrix of bone and facilitate mineralized deposition on their surface by cultured osteoprogenitors. However, terminal differentiation of these mineralizing osteoblasts into osteocytic phenotypes has not yet been demonstrated on silk. Therefore, in this study we test the hypothesis that flat braids of natively (nonregenerated) spun nonmulberry silk A. mylitta, possessing mechanical stiffness in the range of trabecular bone, can regulate osteocyte differentiation within their 3D microenvironment. We seeded human preosteoblasts onto these braids and cultured them under varied temperatures (33.5 and 39 °C), soluble factors (dexamethasone, ascorbic acid, and β-glycerophosphate), and cytokine (TGF-β1). After 1 week, cell dendrites were conspicuously evident, confirming osteocyte differentiation, especially, in the presence of osteogenic factors and TGF-β1 expressing all characteristic osteocyte markers (podoplanin, DMP-1, and sclerostin). A. mylitta silk braids alone were sufficient to induce this differentiation, albeit only transiently. Therefore, we believe that the combinatorial effect of A. mylitta silk (surface chemistry, braid rigidity, and topography), osteogenic differentiation factors, and TGF-β1 were critical in stabilizing the mature osteocytic phenotype. Interestingly, Wnt signaling promoted osteocytic differentiation as evidenced by the upregulated expression of β-catenin in the presence of osteogenic factors and growth factor. This study highlights the role of nonmulberry silk braids in regulating stable osteocytic differentiation. Future studies could benefit from this understanding of the signaling mechanisms associated with silk-based matrices in order to develop 3D in vitro bone model systems.
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Affiliation(s)
- Swati Midha
- Department of Textile Technology, IIT Delhi, Hauz Khas, New Delhi-110016, India
| | - Shibu Chameettachal
- Department of Textile Technology, IIT Delhi, Hauz Khas, New Delhi-110016, India
| | - Emeli Dey
- Department of Textile Technology, IIT Delhi, Hauz Khas, New Delhi-110016, India
| | - Sourabh Ghosh
- Department of Textile Technology, IIT Delhi, Hauz Khas, New Delhi-110016, India
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Osteogenic signaling on silk-based matrices. Biomaterials 2016; 97:133-53. [DOI: 10.1016/j.biomaterials.2016.04.020] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 03/25/2016] [Accepted: 04/20/2016] [Indexed: 12/11/2022]
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Wang Z, Lin M, Xie Q, Sun H, Huang Y, Zhang D, Yu Z, Bi X, Chen J, Wang J, Shi W, Gu P, Fan X. Electrospun silk fibroin/poly(lactide-co-ε-caprolactone) nanofibrous scaffolds for bone regeneration. Int J Nanomedicine 2016; 11:1483-500. [PMID: 27114708 PMCID: PMC4833379 DOI: 10.2147/ijn.s97445] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Tissue engineering has become a promising therapeutic approach for bone regeneration. Nanofibrous scaffolds have attracted great interest mainly due to their structural similarity to natural extracellular matrix (ECM). Poly(lactide-co-ε-caprolactone) (PLCL) has been successfully used in bone regeneration, but PLCL polymers are inert and lack natural cell recognition sites, and the surface of PLCL scaffold is hydrophobic. Silk fibroin (SF) is a kind of natural polymer with inherent bioactivity, and supports mesenchymal stem cell attachment, osteogenesis, and ECM deposition. Therefore, we fabricated hybrid nanofibrous scaffolds by adding different weight ratios of SF to PLCL in order to find a scaffold with improved properties for bone regeneration. Methods Hybrid nanofibrous scaffolds were fabricated by blending different weight ratios of SF with PLCL. Human adipose-derived stem cells (hADSCs) were seeded on SF/PLCL nanofibrous scaffolds of various ratios for a systematic evaluation of cell adhesion, proliferation, cytotoxicity, and osteogenic differentiation; the efficacy of the composite of hADSCs and scaffolds in repairing critical-sized calvarial defects in rats was investigated. Results The SF/PLCL (50/50) scaffold exhibited favorable tensile strength, surface roughness, and hydrophilicity, which facilitated cell adhesion and proliferation. Moreover, the SF/PLCL (50/50) scaffold promoted the osteogenic differentiation of hADSCs by elevating the expression levels of osteogenic marker genes such as BSP, Ocn, Col1A1, and OPN and enhanced ECM mineralization. In vivo assays showed that SF/PLCL (50/50) scaffold improved the repair of the critical-sized calvarial defect in rats, resulting in increased bone volume, higher trabecular number, enhanced bone mineral density, and increased new bone areas, compared with the pure PLCL scaffold. Conclusion The SF/PLCL (50/50) nanofibrous scaffold facilitated hADSC proliferation and osteogenic differentiation in vitro and further promoted new bone formation in vivo, suggesting that the SF/PLCL (50/50) nanofibrous scaffold holds great potential in bone tissue regeneration.
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Affiliation(s)
- Zi Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Ming Lin
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Qing Xie
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Hao Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Yazhuo Huang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - DanDan Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Zhang Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Xiaoping Bi
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Junzhao Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Jing Wang
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry & Chemical Engineering and Biotechnology, Donghua University, Shanghai, People's Republic of China
| | - Wodong Shi
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Ping Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Donghua University, Shanghai, People's Republic of China
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Antiadipogenic and proosteogenic effects of luteolin, a major dietary flavone, are mediated by the induction of DnaJ (Hsp40) Homolog, Subfamily B, Member 1. J Nutr Biochem 2016; 30:24-32. [DOI: 10.1016/j.jnutbio.2015.11.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 11/11/2015] [Accepted: 11/20/2015] [Indexed: 02/07/2023]
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Lei C, Zhu H, Li J, Feng X, Chen J. Preparation and hemostatic property of low molecular weight silk fibroin. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:403-18. [DOI: 10.1080/09205063.2015.1136918] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Melke J, Midha S, Ghosh S, Ito K, Hofmann S. Silk fibroin as biomaterial for bone tissue engineering. Acta Biomater 2016; 31:1-16. [PMID: 26360593 DOI: 10.1016/j.actbio.2015.09.005] [Citation(s) in RCA: 438] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 08/24/2015] [Accepted: 09/06/2015] [Indexed: 01/08/2023]
Abstract
Silk fibroin (SF) is a fibrous protein which is produced mainly by silkworms and spiders. Its unique mechanical properties, tunable biodegradation rate and the ability to support the differentiation of mesenchymal stem cells along the osteogenic lineage, have made SF a favorable scaffold material for bone tissue engineering. SF can be processed into various scaffold forms, combined synergistically with other biomaterials to form composites and chemically modified, which provides an impressive toolbox and allows SF scaffolds to be tailored to specific applications. This review discusses and summarizes recent advancements in processing SF, focusing on different fabrication and functionalization methods and their application to grow bone tissue in vitro and in vivo. Potential areas for future research, current challenges, uncertainties and gaps in knowledge are highlighted. STATEMENT OF SIGNIFICANCE Silk fibroin is a natural biomaterial with remarkable biomedical and mechanical properties which make it favorable for a broad range of bone tissue engineering applications. It can be processed into different scaffold forms, combined synergistically with other biomaterials to form composites and chemically modified which provides a unique toolbox and allows silk fibroin scaffolds to be tailored to specific applications. This review discusses and summarizes recent advancements in processing silk fibroin, focusing on different fabrication and functionalization methods and their application to grow bone tissue in vitro and in vivo. Potential areas for future research, current challenges, uncertainties and gaps in knowledge are highlighted.
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31
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Notch1 deficiency decreases hepatic lipid accumulation by induction of fatty acid oxidation. Sci Rep 2016; 6:19377. [PMID: 26786165 PMCID: PMC4726366 DOI: 10.1038/srep19377] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 12/07/2015] [Indexed: 12/15/2022] Open
Abstract
Notch signaling pathways modulate various cellular processes, including cell proliferation, differentiation, adhesion, and communication. Recent studies have demonstrated that Notch1 signaling also regulates hepatic glucose production and lipid synthesis. However, the effect of Notch1 signaling on hepatic lipid oxidation has not yet been directly investigated. To define the function of Notch1 signaling in hepatic lipid metabolism, wild type mice and Notch1 deficient antisense transgenic (NAS) mice were fed a high-fat diet. High-fat diet -fed NAS mice exhibited a marked reduction in hepatic triacylglycerol accumulation compared with wild type obese mice. The improved fatty liver was associated with an increased expression of hepatic genes involved in fatty acid oxidation. However, lipogenic genes were not differentially expressed in the NAS liver, suggesting lipolytic-specific regulatory effects by Notch1 signaling. Expression of fatty acid oxidative genes and the rate of fatty acid oxidation were also increased by inhibition of Notch1 signaling in HepG2 cells. In addition, similar regulatory effects on lipid accumulation were observed in adipocytes. Taken together, these data show that inhibition of Notch1 signaling can regulate the expression of fatty acid oxidation genes and may provide therapeutic strategies in obesity-induced hepatic steatosis.
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Comparison of silkworm-cocoon-derived silk membranes of two different thicknesses for guided bone regeneration. J Craniofac Surg 2015; 25:2066-9. [PMID: 25377968 DOI: 10.1097/scs.0000000000001151] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The objective of this study was to compare the effectiveness of silk membranes (SMs) of different thicknesses for guided bone regeneration. Two kinds of SMs were prepared (SM1: 0.01 mm thickness, SM2: 0.5 mm thickness). Before use in animal experiments, scanning electron microscope images were taken to examine the gross morphology of each membrane. Ten New Zealand white rabbits were used for this study. Bilateral round-shaped defects were created in the parietal bone (diameter: 8.0 mm) and each defect was covered with SM1 or SM2. Animals were killed at 4 weeks and 8 weeks. Bone regeneration was analyzed in each specimen by micro-computed tomography (μ-CT) and histological analysis. In the μ-CT analysis, the average amount of newly formed bone in the SM2 group was greater than that in the SM1 group. There was a significant difference at 4 weeks after surgery (P = 0.004). In the histological analysis, the amount of formed lamellar bone was much greater in the SM2 group than in the SM1 group at 8 weeks after surgery (P = 0.021). In conclusion, the thick SM was much more effective for bone regeneration of bone defects than the thin SM.
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Zhang R, Lee P, Lui VCH, Chen Y, Liu X, Lok CN, To M, Yeung KWK, Wong KKY. Silver nanoparticles promote osteogenesis of mesenchymal stem cells and improve bone fracture healing in osteogenesis mechanism mouse model. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2015; 11:1949-59. [PMID: 26282383 DOI: 10.1016/j.nano.2015.07.016] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 07/08/2015] [Accepted: 07/22/2015] [Indexed: 12/29/2022]
Abstract
UNLABELLED The potential use of osteo-conducive biomaterials in the promotion of bone fracture healing has attracted wide attention. This study investigated if silver nanoparticles (AgNps) could promote the proliferation and osteogenesis of mesenchymal stem cells (MSCs), and improve bone fracture healing. We showed that AgNps promoted MSCs' proliferation and osteogenic differentiation in vitro. Using a mouse femoral facture model, AgNps encapsulated in collagen promoted the formation of fracture callus, and induced early closure of the fracture gap. AgNps may promote the formation of the callus and the subsequent end joining of the fracture bone via multiple routes: (i) chemo-attraction of MSCs and fibroblasts to migrate to the fracture site; (ii) induction of the proliferation of MSCs; (iii) induction of osteogenic differentiation of MSCs via induction/activation of TGF-β/BMP signaling in MSCs. We concluded that AgNps might be beneficial as an adjunct treatment for bone fracture healing clinically. FROM THE CLINICAL EDITOR Silver nanoparticles are widely used in wound management in the clinical setting. In this article, the authors demonstrated a novel application in that these nanoparticles were efficient in promoting osteoblastic differentiation in both in-vitro and in-vivo studies. The findings may provide a new treatment direction for bone fracture in the future.
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Affiliation(s)
- Ruizhong Zhang
- Department of Surgery, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China; Department of Surgery, Guangzhou Women and Children's Medical Centre, Guangzhou, China
| | - Puiyan Lee
- Department of Surgery, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Vincent C H Lui
- Department of Surgery, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Yan Chen
- Department of Surgery, Guangzhou Women and Children's Medical Centre, Guangzhou, China
| | - Xuelai Liu
- Department of Surgery, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Chun Nam Lok
- Department of Chemistry, Faculty of Science, University of Hong Kong, Hong Kong, China
| | - Michael To
- Department of Orthopaedics, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Kelvin W K Yeung
- Department of Orthopaedics, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Kenneth K Y Wong
- Department of Surgery, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China.
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Varkey A, Venugopal E, Sugumaran P, Janarthanan G, Pillai MM, Rajendran S, Bhattacharyya A. Impact of silk fibroin-based scaffold structures on human osteoblast MG63 cell attachment and proliferation. Int J Nanomedicine 2015; 10 Suppl 1:43-51. [PMID: 26491306 PMCID: PMC4599613 DOI: 10.2147/ijn.s82209] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The present study was carried out to investigate the impact of various types of silk fibroin (SF) scaffolds on human osteoblast-like cell (MG63) attachment and proliferation. SF was isolated from Bombyx mori silk worm cocoons after degumming. Protein concentration in the degummed SF solution was estimated using Bradford method. Aqueous SF solution was used to fabricate three different types of scaffolds, viz, electrospun nanofiber mat, sponge, and porous film. The structures of the prepared scaffolds were characterized using optical microscopy and field emission scanning electron microscopy. The changes in the secondary structure of the proteins and the thermal behavior of the scaffolds were determined by Fourier transform infrared spectroscopy and thermo-gravimetric analysis, respectively. The biodegradation rate of scaffolds was determined by incubating the scaffolds in simulated body fluid for 4 weeks. MG63 cells were seeded on the scaffolds and their attachment and proliferation onto the scaffolds were studied. The MTT assay was carried out to deduce the toxicity of the developed scaffolds. All the scaffolds were found to be biocompatible. The amount of collagen produced by the osteoblast-like cells growing on different scaffolds was estimated.
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Affiliation(s)
- Aneesia Varkey
- Advanced Textile and Polymer Research Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India ; Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
| | - Elakkiya Venugopal
- Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
| | - Ponjanani Sugumaran
- Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
| | - Gopinathan Janarthanan
- Advanced Textile and Polymer Research Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
| | - Mamatha M Pillai
- Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
| | - Selvakumar Rajendran
- Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
| | - Amitava Bhattacharyya
- Advanced Textile and Polymer Research Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
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Song NJ, Kwon SM, Kim S, Yoon HJ, Seo CR, Jang B, Chang SH, Ku JM, Lee JS, Park KM, Hong JW, Kim GH, Park KW. Sulfuretin induces osteoblast differentiation through activation of TGF-β signaling. Mol Cell Biochem 2015; 410:55-63. [PMID: 26260053 DOI: 10.1007/s11010-015-2537-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 08/06/2015] [Indexed: 12/27/2022]
Abstract
The identification and examination of potential determinants controlling the progression of cell fate toward osteoblasts can be intriguing subjects. In this study, the effects of sulfuretin, a major compound isolated from Rhus verniciflua Stokes, on osteoblast differentiation were investigated. Treatments of sulfuretin induced alkaline phosphatase (ALP) activity in mesenchymal C3H10T1/2 cells and mineralization in preosteoblast MC3T3-E1 cells. Pro-osteogenic effects of sulfuretin were consistently observed in freshly isolated primary bone marrow cells. In mechanical studies, sulfuretin specifically induced expression of TGF-β target genes, such as SMAD7 and PAI-1, but not other signaling pathway-related genes. Similar to the results of gene expression analysis, reporter assays further demonstrated TGF-β-specific induction by sulfuretin. Furthermore, disruption of TGF-β signaling using treatment with TGF-β-specific inhibitor, SB-431542, and introduction of SMAD2/3 small interfering RNA impaired the effects of sulfuretin in inducing ALP activity and expression of ALP mRNA. Together, these data indicate that the pro-osteogenic effects of sulfuretin are mediated through activation of TGF-β signaling, further supporting the potential of sulfuretin in the prevention of bone-related diseases such as bone fracture and osteoporosis.
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Affiliation(s)
- No-Joon Song
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - So-Mi Kwon
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Suji Kim
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Hyang-Jin Yoon
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Cho-Rong Seo
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Byunghyun Jang
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Seo-Hyuk Chang
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Jin-Mo Ku
- Natural Product Research Team, Gyeonggi Bio-Center, Gyeonggi Institute of Science and Technology Promotion, Suwon, 443-270, Republic of Korea
| | - Jeong-Soo Lee
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 305-806, Republic of Korea
| | - Ki-Moon Park
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Joung-Woo Hong
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, 446-701, Republic of Korea
| | - Geun Hyung Kim
- Department of Biomechatronic Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Kye Won Park
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, 440-746, Republic of Korea.
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Jang WS, Seo CR, Jang HH, Song NJ, Kim JK, Ahn JY, Han J, Seo WD, Lee YM, Park KW. Black rice (Oryza sativa L.) extracts induce osteoblast differentiation and protect against bone loss in ovariectomized rats. Food Funct 2014; 6:265-75. [PMID: 25428526 DOI: 10.1039/c4fo00836g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Osteoporosis, an age associated skeletal disease, exhibits increased adipogenesis at the expense of osteogenesis from common osteoporotic bone marrow cells. In this study, black rice (Oryza sativa L.) extracts (BRE) were identified as osteogenic inducers. BRE stimulated the alkaline phosphatase (ALP) activity in both C3H10T1/2 and primary bone marrow cells. Similarly, BRE increased mRNA expression of ALP and osterix. Oral administration of BRE in OVX rats prevented decreases in bone density and strength. By contrast, BRE inhibited adipocyte differentiation of mesenchymal C3H10T1/2 cells and prevented increases in body weight and fat mass in high fat diet fed obese mice, further suggesting the dual effects of BRE on anti-adipogenesis and pro-osteogenesis. UPLC analysis identified cyanidin-3-O-glucoside and peonidin-3-O-glucoside as main anti-adipogenic effectors but not for pro-osteogenic induction. In mechanism studies, BRE selectively stimulated Wnt-driven luciferase activities. BRE treatment also induced Wnt-specific target genes such as Axin2, WISP2, and Cyclin D1. Taken together, these data suggest that BRE is a potentially useful ingredient to protect against age related osteoporosis and diet induced obesity.
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Affiliation(s)
- Woo-Seok Jang
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon 440-746, Korea.
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Panda NN, Biswas A, Pramanik K, Jonnalagadda S. Enhanced osteogenic potential of human mesenchymal stem cells on electrospun nanofibrous scaffolds prepared from eri-tasar silk fibroin. J Biomed Mater Res B Appl Biomater 2014; 103:971-82. [DOI: 10.1002/jbm.b.33272] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/09/2014] [Accepted: 08/06/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Niladri nath Panda
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela-769008 Odisha India
| | - Amit Biswas
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela-769008 Odisha India
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela-769008 Odisha India
| | - Sriramakamal Jonnalagadda
- Department of Pharmaceutical Sciences; Philadelphia College of Pharmacy; USciences Philadelphia Pennsylvania 19104
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