1
|
Wang H, Sun R, Huang S, Wu H, Zhang D. Fabrication and properties of hydroxyapatite/chitosan composite scaffolds loaded with periostin for bone regeneration. Heliyon 2024; 10:e25832. [PMID: 38463831 PMCID: PMC10920147 DOI: 10.1016/j.heliyon.2024.e25832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 03/12/2024] Open
Abstract
This paper reports a facile fabrication method of hydroxyapatite/chitosan (HAp/CS) composite scaffold with 3D porous structure without using any chemical cross-linkers. The HAp particles had an urchin-like hollow microstructure and high surface area, which was uniformly dispersed into the pore walls of the HAp/CS scaffold. The addition of HAp can efficiently enhance the mechanical properties and bioactivity of the HAp/CS scaffold. Moreover, periostin was successfully loaded onto the HAp/CS scaffold. When applied to the repair of bone defect in a rat mandibular model, the HAp/CS scaffold loaded with periostin can enhance osteointegration and accelerate bone regeneration. Our research combines periostin with the HAp/CS composite material, which provides a novel strategy to improve bone regeneration and has great application prospect in bone repair fields.
Collapse
Affiliation(s)
- Huachun Wang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
- Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University, Qingdao, 266035, China
| | - Ruixue Sun
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Shengyun Huang
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
| | - Haiwei Wu
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
| | - Dongsheng Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
| |
Collapse
|
2
|
Yang H, Xu H, Lv D, Li S, Rong Y, Wang Z, Wang P, Cao X, Li X, Xu Z, Tang B, Zhu J, Hu Z. The naringin/carboxymethyl chitosan/sodium hyaluronate/silk fibroin scaffold facilitates the healing of diabetic wounds by restoring the ROS-related dysfunction of vascularization and macrophage polarization. Int J Biol Macromol 2024; 260:129348. [PMID: 38219943 DOI: 10.1016/j.ijbiomac.2024.129348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 12/27/2023] [Accepted: 01/07/2024] [Indexed: 01/16/2024]
Abstract
Chronic diabetic wounds remain a globally recognized clinical challenge, which occurs mainly due to the disturbances of wound microenvironmental induced by high concentrations of reactive oxygen species (ROS). Impairments in angiogenesis and inflammation in the wound microenvironment ultimately impede the normal healing process. Therefore, targeting macrophage and vascular endothelial cell dysfunction is a promising therapeutic strategy. In our study, we fabricated artificial composite scaffolds composed of naringin/carboxymethyl chitosan/sodium hyaluronate/silk fibroin (NG/CMCS/HA/SF) to promote wound healing. The NG/CMCS/HA/SF scaffold demonstrated favorable anti-inflammatory, anti-oxidative, and pro-angiogenic properties in both in vitro and in vivo experiments, effectively promoting the healing of diabetic wounds. The positive therapeutic effects observed indicate that the composite scaffolds have great potential in clinical wound healing applications.
Collapse
Affiliation(s)
- Hao Yang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Hailin Xu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Dongming Lv
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Shuting Li
- First Affiliated Hospital of Sun Yat-sen University, Department of Plastic Surgery, Guangzhou, China
| | - Yanchao Rong
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Zhiyong Wang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Peng Wang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Xiaoling Cao
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Xiaohui Li
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Zhongye Xu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Bing Tang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China.
| | - Jiayuan Zhu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China.
| | - Zhicheng Hu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China.
| |
Collapse
|
3
|
Tang L, Chen X, Wang M, Liu Y, Li B, Li Y, Zhang Y. A biomimetic in situ mineralization ECM composite scaffold to promote endogenous bone regeneration. Colloids Surf B Biointerfaces 2023; 232:113587. [PMID: 37844476 DOI: 10.1016/j.colsurfb.2023.113587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/04/2023] [Accepted: 10/10/2023] [Indexed: 10/18/2023]
Abstract
Bone tissue engineering scaffolds constructed from single-component organic materials have inherent limitations. Inspired by the hierarchical structure of physiological natural bone hard tissues, our research explores the construction of organic-inorganic composite scaffold for bone regeneration. In this study, we used a natural and readily obtainable extracellular matrix (ECM) material, i.e., decellularized small intestinal submucosa (SIS), to build the organic component of a phosphorylated hydroxyapatite nanocrystal-containing composite scaffold (nHA@SIS). Guided by polymer-induced liquid-precursor theory, we introduced a soluble inorganic mineralization solution to achieve an inorganic component of nHA@SIS. Using in situ mineralization, we successfully formed inorganic component within SIS and constructed nHA@SIS composite scaffold. We analyzed the physicochemical properties and the osteogenic role of nHA@SIS via a series of in vitro and in vivo studies. Compared with SIS scaffold, the nHA@SIS possessed suitable physicochemical properties, maintained the excellent cell activity of SIS and better guided reorganization of the cell skeleton, thereby achieving superior osteoconductivity and maintaining osteoinductivity at the protein and gene levels. Furthermore, the rat cranial defect area in the nHA@SIS scaffold group was mostly repaired after 12 weeks of implantation, with a larger amount of higher-density new bone tissue being visible at the edge and center than SIS and blank control group. This significantly improved in vivo osteogenic ability indicated the great potential of nHA@SIS for bone tissue engineering applications.
Collapse
Affiliation(s)
- Lin Tang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & National Health Commission Key Laboratory of Digital Technology of Stomatology, Beijing 100081, PR China
| | - Xiaoying Chen
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & National Health Commission Key Laboratory of Digital Technology of Stomatology, Beijing 100081, PR China
| | - Mei Wang
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, PR China
| | - Yuhua Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & National Health Commission Key Laboratory of Digital Technology of Stomatology, Beijing 100081, PR China.
| | - Bowen Li
- Department of Stomatology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Yuke Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & National Health Commission Key Laboratory of Digital Technology of Stomatology, Beijing 100081, PR China
| | - Yi Zhang
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & National Health Commission Key Laboratory of Digital Technology of Stomatology, Beijing 100081, PR China
| |
Collapse
|
4
|
Zamani M, Zahedian A, Tanideh N, Khodabandeh Z, Koohpeyma F, Khazraei H, Zare S, Zarei M, Hosseini SV. Comparison effect of collagen/P3HB composite scaffold and human amniotic membrane loaded with mesenchymal stem cells on colon anastomosis healing in male rats. Biochem Biophys Res Commun 2023; 682:281-292. [PMID: 37832385 DOI: 10.1016/j.bbrc.2023.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023]
Abstract
Covering surgical wounds with biomaterials, biologic scaffolds, and mesenchymal stem cells (MSCs) improves the healing process and reduces postoperative complications. This study was designed to evaluate and compare the effect of MSC-free/MSC-seeded new collagen/poly(3-hydroxybutyrate) (COL/P3HB) composite scaffold and human amniotic membrane (HAM) on the colon anastomosis healing process. COL/P3HB scaffold was prepared using freeze-drying method. MSCs were isolated and characterized from rat adipose tissue. After biocompatibility evaluation by MTT assay, MSCs were seeded on the scaffold and HAM by micro-mass seeding technique. In total, 35 male rats were randomly divided into five groups. After the surgical procedure, cecum incisions were covered by the MSC-free/MSC-seeded scaffold or HAM. Incisions in the control group were only sutured. One month later, the healing process was determined by stereological analysis. The Kruskal-Wallis followed by Dunn's tests were utilized for statistical outcome analysis (SPSS software version 21). COL/10% P3HB scaffold showed the best mechanical and structural properties (7.86 MPa strength, porosity more than 75%). MTT assay indicated that scaffold and especially HAM have suitable biocompatibility. Collagenization and neovascularization were significantly higher, and necrosis was considerably lower in all treated groups in comparison with the controls. MSC-seeded scaffold and HAM significantly decrease inflammation and increase gland volume compared with other groups. The MSC-seeded HAM was significantly successful in decreasing edema compared with other groups. Newly synthesized COL/P3HB scaffold improves the colon anastomosis healing; however, the major positive effect belonged to HAM. MSCs remarkably increase their healing process. Further investigations may contribute to confirming these results in other wound healing.
Collapse
Affiliation(s)
- Mozhdeh Zamani
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Zahedian
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nader Tanideh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Khodabandeh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hajar Khazraei
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahrokh Zare
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Moein Zarei
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; West Pomeranian University of Technology, Szczecin, Department of Polymer and Biomaterials Science, Al. Piastow 45, 71-311, Szczecin, Poland.
| | - Seyed Vahid Hosseini
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
5
|
Li D, Guo X, Du H, Ding W, Li M, Xu Y. Tetracalcium phosphate/polycaprolactone composite scaffold: Mechanical reinforcement, biodegradability regulation and bioactivity induction. J Mech Behav Biomed Mater 2023; 147:106144. [PMID: 37748317 DOI: 10.1016/j.jmbbm.2023.106144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 09/27/2023]
Abstract
Polycaprolactone (PCL) is considered a potential biomaterial due to its good biocompatibility, but its slow degradability and insufficient mechanical properties limit its wide application in bone tissue engineering. Tetracalcium phosphate's (TTCP) good degradability and inherent high stiffness are expected to compensate for the aforementioned defects of PCL and endow it with good biological activity. This goal of this study was to obtain bioactive PCL composite scaffolds with tuneable degradation properties and good mechanical strength via selective laser sintering technology (SLS). Composite porous scaffolds with TTCP contents of 0%, 5%, 10%, 15%, 20%, and 25% were prepared, and the experimental results showed that the addition of TTCP significantly improved the mechanical properties of the scaffold. Notably, the tensile strength of the composite scaffold with 20% TTCP content reached 15.2 MPa, which was 2.9 times that of pure PCL, and the best flexural strength was found in the scaffold with 15% TTCP content (4.7 MPa). More importantly, the introduced TTCP not only achieved the effective pH regulation of the soaking solution and the promotion of biodegradation, but also provided the scaffold with good bioactivity and biocompatibility.
Collapse
Affiliation(s)
- Dongying Li
- Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, 422000, China
| | - Xiaoping Guo
- Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, 422000, China
| | - Haocheng Du
- Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, 422000, China
| | - Wenhao Ding
- Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, 422000, China
| | - Mengqi Li
- Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, 422000, China.
| | - Yong Xu
- Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, 422000, China.
| |
Collapse
|
6
|
Eftekhari-Pournigjeh F, Saeed M, Rajabi S, Tamimi M, Pezeshki-Modaress M. Three-dimensional biomimetic reinforced chitosan/gelatin composite scaffolds containing PLA nano/microfibers for soft tissue engineering application. Int J Biol Macromol 2023; 225:1028-1037. [PMID: 36414076 DOI: 10.1016/j.ijbiomac.2022.11.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 11/10/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022]
Abstract
In the current study, we successfully prepared chitosan/gelatin composite scaffolds reinforced by centrifugally spun polylactic acid (PLA) chopped nano/microfibers (PLA-CFs). Herein, different amounts of PLA-CFs (0 %, 1 %, 2 %, 3 %, and 4 % w/v) dispersed in chitosan/gelatin solution were used. Morphological characterization of prepared scaffolds revealed that at the initial stage of adding PLA-CFs, the chopped fibers were localized at the wall of the pores; however, as the fiber load increased, aggregations of chopped-fibers could be seen. Also, mechanical evaluation of scaffolds in terms of compression and tensile mode showed that samples reinforced with 2 % PLA-CFs had enhanced mechanical properties. Indeed, its tensile strength increased from 123.8 to 247.2 kPa for dry and 18.9 to 48.6 kPa for wet conditions. Furthermore, the tensile modulus associated with both conditions increased from 2.99 MPa and 44.5 kPa to 6.43 MPa and 158.4 kPa, respectively. The results of cell culture studies also confirmed that the prepared composite scaffold exhibited appropriate biocompatibility, cell proliferation and migration. The cell infiltration study of the samples revealed that scaffolds reinforced with 2 % PLA-CFs had significantly better cell penetration and distribution compared with the control ones on both days (7 and 14).
Collapse
Affiliation(s)
- Fatemeh Eftekhari-Pournigjeh
- Department of Biomedical Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran; Soft Tissue Engineering Research Center, Tissue Engineering and Regenerative Medicine Institute, Islamic Azad University, Central Tehran Branch, Tehran, Iran
| | - Mahdi Saeed
- Department of Biomedical Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran; Soft Tissue Engineering Research Center, Tissue Engineering and Regenerative Medicine Institute, Islamic Azad University, Central Tehran Branch, Tehran, Iran.
| | - Sarah Rajabi
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maryam Tamimi
- Soft Tissue Engineering Research Center, Tissue Engineering and Regenerative Medicine Institute, Islamic Azad University, Central Tehran Branch, Tehran, Iran
| | - Mohamad Pezeshki-Modaress
- Burn Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Plastic and Reconstructive Surgery, Hazrat Fatemeh Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
7
|
Guo L, Chen H, Li Y, Zhou J, Chen J. Biocompatible scaffolds constructed by chondroitin sulfate microspheres conjugated 3D-printed frameworks for bone repair. Carbohydr Polym 2023; 299:120188. [PMID: 36876803 DOI: 10.1016/j.carbpol.2022.120188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/15/2022] [Accepted: 09/30/2022] [Indexed: 11/09/2022]
Abstract
Most bone repair scaffolds are multi-connected channel structure, but the hollow structure is not conducive to the transmission of active factors, cells and so on. Here, microspheres were covalently integrated into 3D-printed frameworks to form composite scaffolds for bone repair. The frameworks composed of double bond modified gelatin (Gel-MA) and nano-hydroxyapatite (nHAP) provided strong support for related cells climbing and growth. Microspheres, which were made of Gel-MA and chondroitin sulfate A (CSA), were able to connect the frameworks like bridges, providing channels for cells migration. Additionally, CSA released from microspheres promoted the migration of osteoblasts and enhanced osteogenesis. The composite scaffolds could effectively repair mouse skull defect and improve MC3T3-E1 osteogenic differentiation. These observations confirm the bridging effect of microspheres rich in chondroitin sulfate and also determine that the composite scaffold can be as a promising candidate for enhanced bone repair.
Collapse
Affiliation(s)
- Liangyu Guo
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, China
| | - Hao Chen
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, China
| | - Yuanli Li
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, China
| | - Juan Zhou
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, China.
| | - Jinghua Chen
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, China.
| |
Collapse
|
8
|
Xia B, Chen G. Research progress of natural tissue-derived hydrogels for tissue repair and reconstruction. Int J Biol Macromol 2022; 214:480-491. [PMID: 35753517 DOI: 10.1016/j.ijbiomac.2022.06.137] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/05/2022] [Accepted: 06/20/2022] [Indexed: 12/26/2022]
Abstract
There are many different grafts to repair damaged tissue. Various types of biological scaffolds, including films, fibers, microspheres, and hydrogels, can be used for tissue repair. A hydrogel, which is composed a natural or synthetic polymer network with high water absorption capacity, can provide a microenvironment closely resembling the extracellular matrix (ECM) of natural tissues to stimulate cell adhesion, proliferation, and differentiation. It has been shown to have great application potential in the field of tissue repair and regeneration. Hydrogels derived from natural tissues retain a variety of proteins and growth factors in optimal proportions, which is beneficial for the regeneration of specific tissues. This article reviews the latest research advances in the field of hydrogels from a variety of natural tissue sources, including bone tissue, blood vessels, nerve tissue, adipose tissue, skin tissue, and muscle tissue, including preparation methods, advantages, and applications in tissue engineering and regenerative medicine. Finally, it summarizes and discusses the challenges faced by natural tissue-derived hydrogels used in tissue repair, as well as future research and application directions.
Collapse
Affiliation(s)
- Bin Xia
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, PR China
| | - Guobao Chen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, PR China; Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, PR China.
| |
Collapse
|
9
|
Wang W, Chen C, Gu X. Research progress on effect of magnetic nanoparticle composite scaffold on osteogenesis. Zhejiang Da Xue Xue Bao Yi Xue Ban 2022; 51:102-107. [PMID: 35576112 PMCID: PMC9109764 DOI: 10.3724/zdxbyxb-2021-0398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/10/2021] [Indexed: 06/15/2023]
Abstract
Magnetic nanoparticles (MNP) have been widely used as biomaterials due to their unique magnetic responsiveness and biocompatibility, which also can promote osteogenic differentiation through their inherent micro-magnetic field. The MNP composite scaffold retains its superparamagnetism, which has good physical, mechanical and biological properties with significant osteogenic effects and . Magnetic field has been proved to promote bone tissue repair by affecting cell metabolic behavior. MNP composite scaffolds under magnetic field can synergically promote bone tissue repair and regeneration, which has great application potential in the field of bone tissue engineering. This article summarizes the performance of magnetic composite scaffold, the research progress on the effect of MNP composite scaffold with magnetic fields on osteogenesis, to provide reference for further research and clinical application.
Collapse
|
10
|
Liu X, Sun Y, Chen B, Li Y, Zhu P, Wang P, Yan S, Li Y, Yang F, Gu N. Novel magnetic silk fibroin scaffolds with delayed degradation for potential long-distance vascular repair. Bioact Mater 2022; 7:126-143. [PMID: 34466722 PMCID: PMC8379427 DOI: 10.1016/j.bioactmat.2021.04.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 01/09/2023] Open
Abstract
Although with the good biological properties, silk fibroin (SF) is immensely restrained in long-distance vascular defect repair due to its relatively fast degradation and inferior mechanical properties. It is necessary to construct a multifunctional composite scaffold based on SF. In this study, a novel magnetic SF scaffold (MSFCs) was prepared by an improved infiltration method. Compared with SF scaffold (SFC), MSFCs were found to have better crystallinity, magnetocaloric properties, and mechanical strength, which was ascribed to the rational introduction of iron-based magnetic nanoparticles (MNPs). Moreover, in vivo and in vitro experiments demonstrated that the degradation of MSFCs was significantly extended. The mechanism of delayed degradation was correlated with the dual effect that was the newly formed hydrogen bonds between SFC and MNPs and the complexing to tyrosine (Try) to inhibit hydrolase by internal iron atoms. Besides, the β-crystallization of protein in MSFCs was increased with the rise of iron concentration, proving the beneficial effect after MNPS doped. Furthermore, although macrophages could phagocytose the released MNPs, it did not affect their function, and even a reasonable level might cause some cytokines to be upregulated. Finally, in vitro and in vivo studies demonstrated that MSFCs showed excellent biocompatibility and the growth promotion effect on CD34-labeled vascular endothelial cells (VECs). In conclusion, we confirm that the doping of MNPs can significantly reduce the degradation of SFC and thus provide an innovative perspective of multifunctional biocomposites for tissue engineering.
Collapse
Affiliation(s)
- Xin Liu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Yuxiang Sun
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Bo Chen
- Materials Science and Devices Institute, Suzhou University of Science and Technology, 1 Kerui Road, Suzhou, 215009, PR China
| | - Yan Li
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Peng Zhu
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, 999078, PR China
| | - Peng Wang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Sen Yan
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Yao Li
- College of Social Sciences, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - Fang Yang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, 210096, PR China
| |
Collapse
|
11
|
Yu X, Shen G, Shang Q, Zhang Z, Zhao W, Zhang P, Liang D, Ren H, Jiang X. A Naringin-loaded gelatin-microsphere/nano-hydroxyapatite/silk fibroin composite scaffold promoted healing of critical-size vertebral defects in ovariectomised rat. Int J Biol Macromol 2021; 193:510-518. [PMID: 34710477 DOI: 10.1016/j.ijbiomac.2021.10.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/28/2021] [Accepted: 10/06/2021] [Indexed: 01/08/2023]
Abstract
In this study, we investigated the effect of three-dimensional of naringin/gelatin microspheres/nano-hydroxyapatite/silk fibroin (NG/GMs/nHA/SF) scaffolds on repair of a critical-size bone defect of lumbar 6 in osteoporotic rats. In this work, a cell-free scaffold for bone-tissue engineering based on a silk fibroin (SF)/nano-hydroxyapatite (nHA) scaffold was developed. The scaffold was fabricated by lyophilization. Naringin (NG) was loaded into gelatin microspheres (GMs), which were encapsulated in the nHA/SF scaffolds. The materials were characterized using x ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and thermogravimetric analysis. Moreover, the biomechanics, degradation, and drug-release profile of the scaffold were also evaluated. In vitro, the effect of the scaffold on the adhesion, proliferation, and osteogenic differentiation of rat bone marrow mesenchymal stem cells (BMSCs) was evaluated. In vivo, at 3 months after ovariectomy, a critical-size lumbar defect was indued in the rats to evaluate scaffold therapeutic potential. A 3-mm defect in L6 developed in 60 SD rats, which were randomly divided into SF scaffold, nHA/SF scaffold, NG/nHA/SF scaffold, NG/GMs/nHA/SF scaffold, and blank groups (n = 12 each). At 4, 8, 12, and 16 weeks postoperatively, osteogenesis was evaluated by X-ray, micro-computed tomography, hematoxylin-eosin staining, and fast green staining, and by analysis of BMP-2, Runx2, and Ocn protein levels at 16 weeks. In our results, NG/GM/nHA/SF scaffolds exhibited good biocompatibility, biomechanical strength, and promoted BMSC adhesion, proliferation, and calcium nodule formation in vitro. Moreover, NG/GMs/nHA/SF scaffolds showed greater osteogenic differentiation potential than the other scaffolds in vitro. In vivo, gradual new bone formation was observed, and bone defects recovered by 16 weeks in the experimental group. In the blank group, limited bone formation was observed, and the bone defect was obvious. In conclusion, NG/GMs/nHA/SF scaffolds promoted repair of a lumbar 6 defect in osteoporotic rats. Therefore, the NG/GMs/nHA/SF biocomposite scaffold has potential as a bone-defect-filling biomaterial for bone regeneration.
Collapse
Affiliation(s)
- Xiang Yu
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gengyang Shen
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qi Shang
- The First Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhida Zhang
- The First Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenhua Zhao
- The First Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peng Zhang
- The First Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - De Liang
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hui Ren
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Xiaobing Jiang
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China..
| |
Collapse
|
12
|
Tian Y, Wu Q, Li F, Zhou Y, Huang D, Xie R, Wang X, Zheng Z, Li G. A flexible and biocompatible bombyx mori silk fibroin/wool keratin composite scaffold with interconnective porous structure. Colloids Surf B Biointerfaces 2021; 208:112080. [PMID: 34481247 DOI: 10.1016/j.colsurfb.2021.112080] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/03/2021] [Accepted: 08/26/2021] [Indexed: 01/13/2023]
Abstract
The paper describes the preparation of a porous bombyx mori silk fibroin (SF)/wool keratin (WK) composite scaffold with mimic structure and function for cartilage tissue engineering. A porous composite scaffold made from SF/WK in an appropriate concentration and mass ratio was prepared using a freeze-drying technique. Results showed that the composite scaffolds are water-insoluble; possess good mechanical properties, porosity above 80%, and pore size above 200 μm. Larger pore size and better connectivity of the composite scaffold than the pure SF scaffolds were contributed by the WK addition. The heat resistance and water-swelling of WK enhanced the thermal and mechanical properties of the composite scaffolds. In vitro cytotoxicity assessments showed cells with a good growth state, confirming no toxicity to the cells. The results of in vivo biocompatibility assessments exhibited that there is almost no inflammatory response in the implantation site tissue of the rats. The development of porous SF/WK composite scaffold has the potential in cartilage tissue engineering.
Collapse
|
13
|
Wang Z, Wang H, Xiong J, Li J, Miao X, Lan X, Liu X, Wang W, Cai N, Tang Y. Fabrication and in vitro evaluation of PCL/gelatin hierarchical scaffolds based on melt electrospinning writing and solution electrospinning for bone regeneration. Mater Sci Eng C Mater Biol Appl 2021; 128:112287. [PMID: 34474838 DOI: 10.1016/j.msec.2021.112287] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/23/2021] [Accepted: 06/28/2021] [Indexed: 10/21/2022]
Abstract
As an emerging 3D printing technique, melt electrospinning writing (MEW) has been used to fabricate scaffolds with controllable structure and good mechanical strength for bone regeneration. However, how to further improve MEW scaffolds with nanoscale extracellular matrix (ECM) mimic structure and bioactivity is still challenging. In this study, we proposed a simple composite process by combining MEW and solution electrospinning (SE) to fabricate a micro/nano hierarchical scaffold for bone tissue engineering. The morphological results confirmed the hierarchical structure with both well-defined MEW microfibrous grid structure and SE random nanofiber morphology. The addition of gelatin nanofibers turned the scaffolds to be hydrophilic, and led to a slight enhancement of mechanical strength. Compared with PCL MEW scaffolds, higher cell adhesion efficiency, improved cell proliferation and higher osteoinductive ability were achieved for the MEW/SE composite scaffolds. Finally, multilayer composite scaffolds were fabricated by alternately stacking of MEW layer and SE layer and used to assess the effect on cell ingrowth in the scaffolds. The results showed that gelatin nanofibers did not inhibit cell penetration, but promoted the three-dimensional growth of bone cells. Thus, the strategy of the combined use of MEW and SE is a potential method to fabricate micro/nano hierarchical scaffolds to improve bone regeneration.
Collapse
Affiliation(s)
- Zixu Wang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Micro-nano Manufacturing Technology and Equipment, Guangzhou 510006, China; Ultra-precision Manufacturing Equipment Guangdong-Hong Kong Joint Laboratory, Guangzhou 510006, China; Key Laboratory of Precision Electronic Manufacturing Equipment and Technology, Ministry of Education, Guangzhou 510006, China; School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Han Wang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Micro-nano Manufacturing Technology and Equipment, Guangzhou 510006, China; Ultra-precision Manufacturing Equipment Guangdong-Hong Kong Joint Laboratory, Guangzhou 510006, China; Key Laboratory of Precision Electronic Manufacturing Equipment and Technology, Ministry of Education, Guangzhou 510006, China; School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Junjie Xiong
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Micro-nano Manufacturing Technology and Equipment, Guangzhou 510006, China; Ultra-precision Manufacturing Equipment Guangdong-Hong Kong Joint Laboratory, Guangzhou 510006, China; Key Laboratory of Precision Electronic Manufacturing Equipment and Technology, Ministry of Education, Guangzhou 510006, China; School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiahao Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaomin Miao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Xingzi Lan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Xujie Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Wenlong Wang
- School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Nian Cai
- School of Information Science, Guangdong University of Technology, Guangzhou 510006, China
| | - Yadong Tang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| |
Collapse
|
14
|
Kunwong N, Tangjit N, Rattanapinyopituk K, Dechkunakorn S, Anuwongnukroh N, Arayapisit T, Sritanaudomchai H. Optimization of poly (lactic-co-glycolic acid)-bioactive glass composite scaffold for bone tissue engineering using stem cells from human exfoliated deciduous teeth. Arch Oral Biol 2021; 123:105041. [PMID: 33454420 DOI: 10.1016/j.archoralbio.2021.105041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to develop a composite scaffold with the optimal poly(lactic-co-glycolic acid) (PLGA) and bioactive glass proportions to provide an environment for bone tissue regeneration and repair. DESIGN PLGA-bioactive glass composite scaffolds were prepared using a salt-leaching technique with different percentages of bioactive glass (0%, 10 %, and 15 % [w/w]) with PLGA. The resulting scaffolds were characterized using scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM-EDS), and water contact angle, dynamic mechanical, and pH analysis. The scaffold biocompatibility was investigated using stem cells from human exfoliated deciduous teeth (SHED) and rat experiments. RESULTS SEM-EDS confirmed the successful fabrication of three-dimensional PLGA-bioactive glass scaffolds. The results showed that 10 % bioactive glass with PLGA exhibited favorable properties including increased pore size, hydrophilicity, and mechanical properties. The growth medium pH was increased for scaffolds containing bioactive glass. All scaffolds were biocompatible, and 10 % bioactive glass composite scaffolding showed better attachment, growth, and proliferation of SHED compared to the other scaffolds. Moreover, it enhanced osteogenic differentiation of SHED in vitro and in vivo. CONCLUSIONS Salt-leaching-derived PLGA-bioactive glass composite scaffolds were successfully established. PLGA with 10 % bioactive glass had adequate physical properties and bioactivity, and it could be considered as a composite for bone tissue engineering applications.
Collapse
Affiliation(s)
- Natsuda Kunwong
- Department of Materials Science and Engineering, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Nathaphon Tangjit
- Department of Orthodontics, Faculty of Dentistry, Mahidol University, Bangkok, 10400, Thailand
| | - Kasem Rattanapinyopituk
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Surachai Dechkunakorn
- Department of Orthodontics, Faculty of Dentistry, Mahidol University, Bangkok, 10400, Thailand
| | - Niwat Anuwongnukroh
- Department of Orthodontics, Faculty of Dentistry, Mahidol University, Bangkok, 10400, Thailand
| | - Taweepong Arayapisit
- Department of Anatomy, Faculty of Dentistry, Mahidol University, Bangkok, 10400, Thailand
| | | |
Collapse
|
15
|
Li K, Zhang F, Wang D, Qiu Q, Liu M, Yu A, Cui Y. Silkworm-inspired electrohydrodynamic jet 3D printing of composite scaffold with ordered cell scale fibers for bone tissue engineering. Int J Biol Macromol 2021; 172:124-132. [PMID: 33418047 DOI: 10.1016/j.ijbiomac.2021.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/23/2020] [Accepted: 01/03/2021] [Indexed: 10/22/2022]
Abstract
The combination of biomimetic and 3D printing has created novel opportunities for the manufacture of 3D engineered materials. A sub-microscale E-Jet 3D printing method, inspired by the dehydration and protein enrichment process of silkworm, was developed to fabricate composite bone tissue scaffold with the characteristics of controllability, fast and inexpensive. By applying the resultant effects of thermal field and flow field to low viscous composite ink, the concentration gradient biopolymer ink was obtained near the needle tip, mimicking the advanced dehydration of natural spinning apparatus. After electrical shearing force were applied on concentration gradient ink, a stable and fine jet formed. Various printing modes (droplet, continuous fiber) and structure resolutions were achieved by adjusting local solvent evaporation. Thin film, high resolution 2D structures, high aspect ratio well-bonding 3D structures were fabricated. The printed result showed that a 100 μm-sized needle could be employed directly to print patterning down to 800 nm. The printed composite scaffold with controllability of fiber size and space has been proved the feasibility as a medium for bone tissue regeneration. It can be estimated that the novel biomimetic E-Jet 3D printing technique is a new and promising way for bone tissue repairing.
Collapse
Affiliation(s)
- Kai Li
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China.
| | - Fangyuan Zhang
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Dazhi Wang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Quanshui Qiu
- Beijing Institute of Space Mechanics & Electricity, Beijing 100190, China
| | - Maiqi Liu
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Aibing Yu
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Yuguo Cui
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| |
Collapse
|
16
|
Huang Q, Liu Y, Ouyang Z, Feng Q. Comparing the regeneration potential between PLLA/Aragonite and PLLA/Vaterite pearl composite scaffolds in rabbit radius segmental bone defects. Bioact Mater 2020; 5:980-989. [PMID: 32671292 PMCID: PMC7334395 DOI: 10.1016/j.bioactmat.2020.06.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/09/2020] [Accepted: 06/27/2020] [Indexed: 01/27/2023] Open
Abstract
Mussel-derived nacre and pearl, which are natural composites composed CaCO3 platelets and interplatelet organic matrix, have recently gained interest due to their osteogenic potential. The crystal form of CaCO3 could be either aragonite or vaterite depending on the characteristics of mineralization template within pearls. So far, little attention has been paid on the different osteogenic capacities between aragonite and vaterite pearl. In the current work, aragonite or vaterite pearl powders were incorporated into poly-l-lactic acid (PLLA) scaffold as bio-functional fillers for enhanced osteogenesis. In intro results revealed that PLLA/aragonite scaffold possessed stronger stimulatory effect on SaOS-2 cell proliferation and differentiation, evidenced by the enhanced cell viability, alkaline phosphatase activity, collagen synthesis and gene expressions of osteogenic markers including osteocalcin, osteopotin and bone sialoprotein. The bone regeneration potential of various scaffolds was evaluated in vivo employing a rabbit critical-sized radial bone defect model. The X-ray and micro-CT results showed that significant bone regeneration and bridging were achieved in defects implanted with composite scaffolds, while less bone formation and non-bridging were found for pure PLLA group. Histological evaluation using Masson's trichrome and hematoxylin/eosin (H&E) staining indicated a typical endochondral bone formation process conducted at defect sites treated with composite scaffolds. Through three-point bending test, the limbs implanted with PLLA/aragonite scaffold were found to bear significantly higher bending load compared to other two groups. Together, it is suggested that aragonite pearl has superior osteogenic capacity over vaterite pearl and PLLA/aragonite scaffold can be employed as a potential bone graft for bone regeneration. PLLA/pearl powder composite scaffolds with interconnected pores were fabricated. PLLA/aragonite scaffold stimulated SaOS-2 cell proliferation and differentiation. PLLA/aragonite scaffold promoted bone regeneration in vivo.
Collapse
Affiliation(s)
- Qianli Huang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, PR China
- Corresponding author.
| | - Yuansheng Liu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
- Public Security College, Northwest University of Political Science and Law, Xi'an, 710122, PR China
| | - Zhengxiao Ouyang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410083, PR China
| | - Qingling Feng
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
- Corresponding author.
| |
Collapse
|
17
|
Shi GS, Li YY, Luo YP, Jin JF, Sun YX, Zheng LZ, Lai YX, Li L, Fu GH, Qin L, Chen SH. Bioactive PLGA/tricalcium phosphate scaffolds incorporating phytomolecule icaritin developed for calvarial defect repair in rat model. J Orthop Translat 2020; 24:112-120. [PMID: 32775203 PMCID: PMC7390784 DOI: 10.1016/j.jot.2020.05.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/18/2020] [Accepted: 05/29/2020] [Indexed: 02/09/2023] Open
Abstract
Background/objectives For treatment of large bone defects challenging in orthopaedic clinics, bone graft substitutes are commonly used for the majority of surgeons. It would be proposed in the current study that our bioactive scaffolds could additionally serve as a local delivery system for therapeutic small molecule agents capable of providing support to enhance biological bone repair. Methods In this study, composite scaffolds made of poly (lactic-co-glycolic acid) (PLGA) and tricalcium phosphate (TCP) named by P/T was fabricated by a low-temperature rapid prototyping technique. For optimizing the scaffolds, the phytomolecule icaritin (ICT) was incorporated into P/T scaffolds called P/T/ICT. The osteogenic efficacies of the two groups of scaffolds were compared in a successfully established calvarial defect model in rats. Bone regeneration was evaluated by X-ray, micro-computerised tomography (micro-CT), and histology at weeks 4 and/or 8 post-implantation. In vitro induction of osteogenesis and osteoclastogenesis was established for identification of differentiation potentials evoked by icaritin in primary cultured precursor cells. Results The results of radiographies and decalcified histology demonstrated more area and volume fractions of newly formed bone within bone defect sites implanted with P/T/ICT scaffold than that with P/T scaffold. Undecalcified histological results presented more osteoid and mineralized bone tissues, and also more active bone remodeling in P/T/ICT group than that in P/T group. The results of histological staining in osteoclast-like cells and newly formed vessels indicated favorable biocompatibility, rapid bioresorption and more new vessel growth in P/T/ICT scaffolds in contrast to P/T scaffolds. Based on in vitro induction, the results presented that icaritin could significantly facilitate osteogenic differentiation, while suppressed adipogenic differentiation. Meanwhile, icaritin demonstrated remarkable inhibition of osteoclastogenic differentiation. Conclusion The finding that P/T/ICT composite scaffold can enhance bone regeneration in calvarial bone defects through facilitating effective bone formation and restraining excessive bone resorption. The translational potential of this article The osteogenic bioactivity of icaritin facilitated PLGA/TCP/icartin composite scaffold to exert significant bone regeneration in calvarial defects in rat model. It might form an optimized foundation for potential clinical validation in bone defects application.
Collapse
Affiliation(s)
- Guang-Sen Shi
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Ying-Ying Li
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Ya-Ping Luo
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Jian-Feng Jin
- Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou, PR China
| | - Yu-Xin Sun
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Li-Zhen Zheng
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yu-Xiao Lai
- Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Long Li
- Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Guo-Hui Fu
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Ling Qin
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Shi-Hui Chen
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.,Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
18
|
Pelaez F, Shao Q, Ranjbartehrani P, Lam T, Lee HR, O'Flanagan S, Silbaugh A, Bischof JC, Azarin SM. Optimizing Integrated Electrode Design for Irreversible Electroporation of Implanted Polymer Scaffolds. Ann Biomed Eng 2020; 48:1230-1240. [PMID: 31916125 DOI: 10.1007/s10439-019-02445-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 12/27/2019] [Indexed: 12/11/2022]
Abstract
Irreversible electroporation (IRE) is an emerging technology for non-thermal ablation of solid tumors. This study sought to integrate electrodes into microporous poly(caprolactone) (PCL) scaffolds previously shown to recruit metastasizing cancer cells in vivo in order to facilitate application of IRE to disseminating cancer cells. As the ideal parallel plate geometry would render much of the porous scaffold surface inaccessible to infiltrating cells, numerical modeling was utilized to predict the spatial profile of electric field strength within the scaffold for alternative electrode designs. Metal mesh electrodes with 0.35 mm aperture and 0.16 mm wire diameter established electric fields with similar spatial uniformity as the parallel plate geometry. Composite PCL-IRE scaffolds were fabricated by placing cylindrical porous PCL scaffolds between two PCL dip-coated stainless steel wire meshes. PCL-IRE scaffolds exhibited no difference in cell infiltration in vivo compared to PCL scaffolds. In addition, upon application of IRE in vivo, cells infiltrating the PCL-IRE scaffolds were successfully ablated, as determined by histological analysis 3 days post-treatment. The ability to establish homogeneous electric fields within a biomaterial that can recruit metastatic cancer cells, especially when combined with immunotherapy, may further advance IRE technology beyond solid tumors to the treatment of systemic cancer.
Collapse
Affiliation(s)
- Francisco Pelaez
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Qi Shao
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Pegah Ranjbartehrani
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Tiffany Lam
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Hak Rae Lee
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Stephen O'Flanagan
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Abby Silbaugh
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA
| | - John C Bischof
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Samira M Azarin
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA.
| |
Collapse
|
19
|
Li K, Wang D, Zhao K, Song K, Liang J. Electrohydrodynamic jet 3D printing of PCL/PVP composite scaffold for cell culture. Talanta 2020; 211:120750. [PMID: 32070610 DOI: 10.1016/j.talanta.2020.120750] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 01/11/2020] [Accepted: 01/14/2020] [Indexed: 12/21/2022]
Abstract
Controlled printing of biodegradable and bioresorbable polymers at desired 3D scaffold is of great importance for cell growth and tissue regeneration. In this work, a novel electrohydrodynamic jet 3D printing technology with the resultant effect of electrohydrodynamic force and thermal convection was developed, and its feasibility to fabricate controllable filament composite scaffolds was verified. This method introduces an effective thermal field under the needle to simultaneously enhance the ink viscosity, jetting morphology controllability and printing structure solidify. The fabrication mechanisms of thermal convection on jetting morphology and printed structures feature were investigated through theoretical analysis and experimental characterization. Under optimized conditions, a stable and finer jet was formed; then with the use of this jet, various 3D structures were directly printed at a high aspect ratio ~30. Furthermore, the PCL/PVP composite scaffolds with the controllable filament diameter (~10 μm) which is closed to living cells were printed. Cell culture experiments showed that the printed scaffolds had excellent cell biocompatibility and facilitated cellular proliferation in vitro. It is a great potential that the developed electrohydrodynamic jet 3D printing technology might provide a novel approach to directly print composite synthetic biopolymers into flexibly scale structures for tissue engineering applications.
Collapse
Affiliation(s)
- Kai Li
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Dazhi Wang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China; Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, 116024, China.
| | - Kuipeng Zhao
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Kedong Song
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Junsheng Liang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China; Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, 116024, China
| |
Collapse
|
20
|
Kuang Z, Dai G, Wan R, Zhang D, Zhao C, Chen C, Li J, Gu H, Huang W. Osteogenic and antibacterial dual functions of a novel levofloxacin loaded mesoporous silica microspheres/nano-hydroxyapatite/polyurethane composite scaffold. Genes Dis 2019; 8:193-202. [PMID: 33997166 PMCID: PMC8099691 DOI: 10.1016/j.gendis.2019.09.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/16/2019] [Accepted: 09/27/2019] [Indexed: 12/27/2022] Open
Abstract
Lev/MSNs/n-HA/PU has been proved to be a novel scaffold material to treat bone defect caused by chronic osteomyelitis. We have previously identified that this material can effectively treat chronic osteomyelitis caused by Staphylococcus aureusin vivo. However, the potential mechanisms of antibacterial and osteogenic induction properties remain unclear. Thus, for osteogenesis property, immunohistochemistry, PCR, and Western blot were performed to detect the expression of osteogenic markers. Furthermore, flow cytometry and TUNEL were applied to analyze MC3T3-E1 proliferation and apoptosis. For antibacterial property, the material was co-cultivated with bacteria, bacterial colony forming units was counted and the release time of the effective levofloxacin was assayed by agar disc-diffusion test. Moreover, scanning electron microscope was applied to observe adhesion of bacteria. In terms of osteogenic induction, we found BMSCs adherently grew more prominently on Lev/MSNs/n-HA/PU. Lev/MSNs/n-HA/PU also enhanced the expression of osteogenic markers including OCN and COL1α1, as well as effectively promoted the transition from G1 phase to G2 phase. Furthermore, Lev/MSNs/n-HA/PU could reduce apoptosis of MC3T3-E1. Besides, both Lev/MSNs/n-HA/PU and n-HA/PU materials could inhibit bacterial colonies, while Lev/MSNs/n-HA/PU possessed a stronger antibacterial activities, and lower bacterial adhesion than n-HA/PU. These results illustrated that Lev/MSNs/n-HA/PU composite scaffold possess favorable compatibility in vitro, which induce osteogenic differentiation of MSCs, promote proliferation and differentiation of MC3T3-E1, and inhibit apoptosis. Moreover, clear in vitro antibacterial effect of Lev/MSNs/n-HA/PU was also observed. In summary, this study replenishes the potential of Lev/MSNs/n-HA/PU composite scaffold possess dual functions of anti-infection and enhanced osteogenesis for future clinical application.
Collapse
Affiliation(s)
- Zhiping Kuang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China.,Department of Orthopaedic Surgery, Chongqing Traditional Chinese Medicine Hospital, Chongqing, 400011, PR China
| | - Guangming Dai
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China
| | - Ruijie Wan
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China.,Department of Orthopaedic Surgery, Chongqing Traditional Chinese Medicine Hospital, Chongqing, 400011, PR China
| | - Dongli Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China
| | - Chen Zhao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China
| | - Cheng Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China
| | - Jidong Li
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, Sichuan Province, 610065, PR China
| | - Hongchen Gu
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiaotong University, Shanghai, 200240, PR China
| | - Wei Huang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China
| |
Collapse
|
21
|
De Luca A, Vitrano I, Costa V, Raimondi L, Carina V, Bellavia D, Conoscenti G, Di Falco R, Pavia FC, La Carrubba V, Brucato V, Giavaresi G. Improvement of osteogenic differentiation of human mesenchymal stem cells on composite poly l-lactic acid/nano-hydroxyapatite scaffolds for bone defect repair. J Biosci Bioeng 2019; 129:250-257. [PMID: 31506241 DOI: 10.1016/j.jbiosc.2019.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 01/07/2023]
Abstract
Tissue engineering offers new approaches to repair bone defects, which cannot be repaired physiologically, developing scaffolds that mimic bone tissue architecture. Furthermore, biomechanical stimulation induced by bioreactor, provides biomechanical cues that regulate a wide range of cellular events especially required for cellular differentiation and function. The improvement of human mesenchymal stem cells (hMSCs) colonization in poly-l-lactic-acid (PLLA)/nano-hydroxyapatite (nHA) composite scaffold was evaluated in terms of cell proliferation (dsDNA content), bone differentiation (gene expression and protein synthesis) and ultrastructural analysis by comparing static (s3D) and dynamic (d3D) 3D culture conditions at 7 and 21 days. The colonization rate of hMSCs and osteogenic differentiation were amplified by d3D when physical stimulation was provided by a perfusion bioreactor. Increase in dsDNA content (p < 0.0005), up-regulation of RUNX2, ALPL, SPP1 (p < 0.0005) and SOX9 (p < 0.005) gene expression, and more calcium nodule formation (p < 0.0005) were observed in d3D cultures in comparison to s3D ones over time. Dynamic 3D culture, mimicking the mechanical signals of bone environment, improved significantly osteogenic differentiation of hMSCs on PLLA/nHA scaffold, without the addition of growth factors, confirming this composite scaffold suitable for bone regeneration.
Collapse
Affiliation(s)
- Angela De Luca
- IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna 40136, Italy.
| | - Ilenia Vitrano
- Department of Civil, Environmental, Aerospace, Materials Engineering (DICAM), Bio and Tissue Engineering Lab, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy
| | - Viviana Costa
- IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna 40136, Italy
| | - Lavinia Raimondi
- IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna 40136, Italy
| | - Valeria Carina
- IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna 40136, Italy
| | - Daniele Bellavia
- IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna 40136, Italy
| | - Gioacchino Conoscenti
- Department of Civil, Environmental, Aerospace, Materials Engineering (DICAM), Bio and Tissue Engineering Lab, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy
| | - Rossella Di Falco
- Department of Civil, Environmental, Aerospace, Materials Engineering (DICAM), Bio and Tissue Engineering Lab, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy
| | - Francesco Carfì Pavia
- Department of Civil, Environmental, Aerospace, Materials Engineering (DICAM), Bio and Tissue Engineering Lab, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy; INSTM Consortium Palermo Research Unit, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy; Advanced Technologies Network (ATeN) Center, University of Palermo, Viale delle Scienze bldg 18A, Palermo 90128, Italy
| | - Vincenzo La Carrubba
- Department of Civil, Environmental, Aerospace, Materials Engineering (DICAM), Bio and Tissue Engineering Lab, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy; INSTM Consortium Palermo Research Unit, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy; Advanced Technologies Network (ATeN) Center, University of Palermo, Viale delle Scienze bldg 18A, Palermo 90128, Italy
| | - Valerio Brucato
- Department of Civil, Environmental, Aerospace, Materials Engineering (DICAM), Bio and Tissue Engineering Lab, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy; INSTM Consortium Palermo Research Unit, University of Palermo, Viale delle Scienze bldg 8, Palermo 90128, Italy; Advanced Technologies Network (ATeN) Center, University of Palermo, Viale delle Scienze bldg 18A, Palermo 90128, Italy
| | - Gianluca Giavaresi
- IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna 40136, Italy
| |
Collapse
|
22
|
Świętek M, Brož A, Tarasiuk J, Wroński S, Tokarz W, Kozieł A, Błażewicz M, Bačáková L. Carbon nanotube/iron oxide hybrid particles and their PCL-based 3D composites for potential bone regeneration. Mater Sci Eng C Mater Biol Appl 2019; 104:109913. [PMID: 31499964 DOI: 10.1016/j.msec.2019.109913] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 06/20/2019] [Accepted: 06/22/2019] [Indexed: 01/21/2023]
Abstract
This study describes the preparation, and evaluates the biocompatibility, of hydroxylated multi-walled carbon nanotubes (fCNTs) functionalized with magnetic iron oxide nanoparticles (IONs) creating hybrid nanoparticles. These nanoparticles were used for preparing a composite porous poly(ε-caprolactone) scaffolds for potential utilization in regenerative medicine. Hybrid fCNT/ION nanoparticles were prepared in two mass ratios - 1:1 (H1) and 1:4 (H4). PCL scaffolds were prepared with various concentrations of the nanoparticles with fixed mass either of the whole nanoparticle hybrid or only of the fCNTs. The hybrid particles were evaluated in terms of morphology, composition and magnetic properties. The cytotoxicity of the hybrid nanoparticles and the pure fCNTs was assessed by exposing the SAOS-2 human cell line to colloids with a concentration range from 0.01 to 1 mg/ml. The results indicate a gradual increase in the cytotoxicity effect with increasing concentration. At low concentrations, interestingly, SAOS-2 metabolic activity was stimulated by the presence of IONs. The PCL scaffolds were characterized in terms of the scaffold architecture, the dispersion of the nanoparticles within the polymer matrix, and subsequently in terms of their thermal, mechanical and magnetic properties. A higher ION content was associated with the presence of larger agglomerates of particles. With exception of the scaffold with the highest content of the H4 nanoparticle hybrid, all composites were superparamagnetic. In vitro tests indicate that both components of the hybrid nanoparticles may have a positive impact on the behavior of SAOS-2 cells cultivated on the PCL composite scaffolds. The presence of fCNTs up to 1 wt% improved the cell attachment to the scaffolds, and a content of IONs below 1 wt% increased the cell metabolic activity.
Collapse
Affiliation(s)
- Małgorzata Świętek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic; AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Krakow, Poland
| | - Antonín Brož
- Institute of Physiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic.
| | - Jacek Tarasiuk
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Mickiewicza 30, 30-59 Krakow, Poland
| | - Sebastian Wroński
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Mickiewicza 30, 30-59 Krakow, Poland
| | - Waldemar Tokarz
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Mickiewicza 30, 30-59 Krakow, Poland
| | - Agata Kozieł
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Krakow, Poland
| | - Marta Błażewicz
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Krakow, Poland
| | - Lucie Bačáková
- Institute of Physiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| |
Collapse
|
23
|
Chong C, Wang Y, Fathi A, Parungao R, Maitz PK, Li Z. Skin wound repair: Results of a pre-clinical study to evaluate electropsun collagen-elastin-PCL scaffolds as dermal substitutes. Burns 2019; 45:1639-1648. [PMID: 31076208 DOI: 10.1016/j.burns.2019.04.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/11/2019] [Accepted: 04/16/2019] [Indexed: 01/18/2023]
Abstract
The gold standard treatment for severe burn injuries is autologous skin grafting and the use of commercial dermal substitutes. However, resulting skin tissue following treatment usually displays abnormal morphology and functionality including scarring, skin contracture due to the poor elasticity and strength of existing dermal substitutes. In this study, we have developed a triple-polymer scaffold made of collagen-elastin-polycaprolactone (CEP) composite, aiming to enhance the mechanical properties of the scaffold while retaining its biological properties in promoting cell attachment, proliferation and tissue regeneration. The inclusion of elastin was revealed to decrease the stiffness of the scaffold, while also decreasing hysteresis and increasing elasticity. In mice, electrospun collagen-elastin-PCL scaffolds promoted keratinocyte and fibroblast proliferation, tissue integration and accelerated early-stage angiogenesis. Only a mild inflammatory response was observed in the first 2 weeks post-subcutaneous implantation. Our data indicates that the electrospun collagen-elastin-PCL scaffolds could potentially serve as a skin substitute to promote skin cell growth and tissue regeneration after severe burn injury.
Collapse
Affiliation(s)
- Cassandra Chong
- Burns Research Group, ANZAC Research Institute, Concord Hospital, University of Sydney, Concord West, NSW 2139, Australia
| | - Yiwei Wang
- Burns Research Group, ANZAC Research Institute, Concord Hospital, University of Sydney, Concord West, NSW 2139, Australia; Disciplines of Surgery, School of Medicine, University of Sydney, NSW 2006, Australia
| | - Ali Fathi
- School of Chemical and Biomolecular Engineering, University of Sydney, NSW 2006, Australia
| | - Roxanne Parungao
- Burns Research Group, ANZAC Research Institute, Concord Hospital, University of Sydney, Concord West, NSW 2139, Australia
| | - Peter K Maitz
- Burns Research Group, ANZAC Research Institute, Concord Hospital, University of Sydney, Concord West, NSW 2139, Australia; Disciplines of Surgery, School of Medicine, University of Sydney, NSW 2006, Australia; Burns and Reconstructive Surgery Unit, Concord Hospital, Concord, NSW 2139, Australia
| | - Zhe Li
- Burns Research Group, ANZAC Research Institute, Concord Hospital, University of Sydney, Concord West, NSW 2139, Australia; Disciplines of Surgery, School of Medicine, University of Sydney, NSW 2006, Australia; Burns and Reconstructive Surgery Unit, Concord Hospital, Concord, NSW 2139, Australia.
| |
Collapse
|
24
|
Singh BN, Veeresh V, Mallick SP, Jain Y, Sinha S, Rastogi A, Srivastava P. Design and evaluation of chitosan/chondroitin sulfate/nano-bioglass based composite scaffold for bone tissue engineering. Int J Biol Macromol 2019; 133:817-30. [PMID: 31002908 DOI: 10.1016/j.ijbiomac.2019.04.107] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/26/2019] [Accepted: 04/15/2019] [Indexed: 01/19/2023]
Abstract
Chitosan, a natural biopolymer with osteoconductive properties is widely investigated to generate scaffolds for bone tissue engineering applications. However, chitosan based scaffolds lacks in mechanical strength and structural stability in hydrated condition and thereby limits its application for bone tissue regeneration. Thus in the present study, to overcome the limitations associated with chitosan based scaffolds, we fabricated polyelectrolyte complexation mediated composite scaffold of chitosan and chondroitin sulfate incorporated with nano-sized bioglass. Developed scaffolds were successfully characterized for various morphological, physico-chemical, mechanical and apatite forming properties using XRD, FT-IR, FE-SEM and TEM. It was observed that polyelectrolyte complexation followed by incorporation of bioglass significantly enhances mechanical strength, reduces excessive swelling behavior and enhances structural stability of the scaffold in hydrated condition. Also, in-vitro cell adhesion, spreading, viability and cytotoxity were investigated to evaluate the cell supportive properties of the developed scaffolds. Furthermore, alkaline phosphatase activity, biomineralization and collagen type I expression were observed to be significantly higher over the composite scaffold indicating its superior osteogenic potential. More importantly, in-vivo iliac crest bone defect study revealed that implanted composite scaffold facilitate tissue regeneration and integration with native bone tissue. Thus, developed composite scaffold might be a suitable biomaterial for bone tissue engineering applications.
Collapse
|
25
|
Demirkıran ND, Havıtçıoğlu H, Ziylan A, Cankurt Ü, Hüsemoğlu B. Novel multilayer meniscal scaffold provides biomechanical and histological results comparable to polyurethane scaffolds: An 8 week rabbit study. Acta Orthop Traumatol Turc 2019; 53:120-128. [PMID: 30826138 PMCID: PMC6506817 DOI: 10.1016/j.aott.2019.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 12/11/2018] [Accepted: 02/05/2019] [Indexed: 12/11/2022]
Abstract
Objective The aim of this study was to evaluate the meniscal regeneration and arthritic changes after partial meniscectomy and application of either polyurethane scaffold or novel multilayer meniscal scaffold in a rabbit model. Methods Sixteen NewZealand rabbits were randomly divided into three groups. A reproducible 1.5-mm cylindrical defect was created in the avascular zone of the anterior horn of the medial meniscus bilaterally. Defects were filled with the polyurethane scaffold in Group 1 (n:6) and with novel multilayer scaffold in Group 2 (n:6). Rabbits in Group 3 (n:4) did not receive any treatment and defects were left empty. All animals were sacrificed after 8 weeks and bilateral knee joints were taken for macroscopic, biomechanical, and histological analysis. After excision of menisci, inked condylar surfaces and tibial plateaus were evaluated for arthritic changes. Digital photographs of excised menisci were also obtained and surface areas were measured by a computer software. Indentation testing of the tibial condyles and compression tests for the relevant meniscal areas was also performed in all groups. Histological analysis was made and all specimens were scored according to Rodeo scoring system. Results No signs of inflammation or infection were observed in any animals. A significant difference was observed between meniscus surface areas of the multilayer scaffold group (20.13 ± 1.91 mm2) and the group with empty meniscus defects (15.62 ± 2.04 mm2) (p = 0.047). The results of biomechanical compression tests revealed a significant difference between the Hayes scores of the second group (1.728) and the empty defect group (0,467) (p = 0.029). Intact meniscal tissue showed higher mechanical properties than all the defected samples. Multilayer scaffold group demonstrated the closest results compared to healthy meniscus tissue. Tibia indentation tests and histological evaluation showed no significant differences between groups (p = 0.401 and p = 0.186 respectively). Conclusions In this study, the initial evaluation of novel multilayer meniscal scaffold prevented the shrinkage that may occur in the meniscus area and demonstrated superior biomechanical results compared to empty defects. No adverse events related to scaffold material was observed. Besides, promising biomechanical and histological results, comparable to polyurethane scaffold, were obtained.
Collapse
|
26
|
Woźniak MJ, Chlanda A, Oberbek P, Heljak M, Czarnecka K, Janeta M, John Ł. Binary bioactive glass composite scaffolds for bone tissue engineering-Structure and mechanical properties in micro and nano scale. A preliminary study. Micron 2018; 119:64-71. [PMID: 30682529 DOI: 10.1016/j.micron.2018.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/26/2018] [Accepted: 12/13/2018] [Indexed: 12/11/2022]
Abstract
Composite scaffolds of bioactive glass (SiO2-CaO) and bioresorbable polyesters: poly-l-lactic acid (PLLA) and polycaprolactone (PCL) were produced by polymer coating of porous foams. Their structure and mechanical properties were investigated in micro and nanoscale, by the means of scanning electron microscopy, PeakForce Quantitative Nanomechanical Property Mapping (PF-QNM) atomic force microscopy, micro-computed tomography and contact angle measurements. This is one of the first studies in which the nanomechanical properties (elastic modulus, adhesion) were measured and mapped simultaneously with topography imaging (PF-QNM AFM) for bioactive glass and bioactive glass - polymer coated scaffolds. Our findings show that polymer coated scaffolds had higher average roughness and lower stiffness in comparison to pure bioactive glass scaffolds. Such coating-dependent scaffold properties may promote different cells-scaffold interaction.
Collapse
Affiliation(s)
- Michał J Woźniak
- University Research Center - Functional Materials, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; MJW RnD, Nowy Swiat 33/13, 00-029 Warsaw, Poland.
| | - Adrian Chlanda
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Przemysław Oberbek
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; Central Institute for Labour Protection - National Research Institute, Czerniakowska, 16, 00-701 Warsaw, Poland
| | - Marcin Heljak
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Katarzyna Czarnecka
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego, 5B, 02-106 Warsaw, Poland
| | - Mateusz Janeta
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Łukasz John
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| |
Collapse
|
27
|
Du J, Zuo Y, Lin L, Huang D, Niu L, Wei Y, Wang K, Lin Q, Zou Q, Li Y. Effect of hydroxyapatite fillers on the mechanical properties and osteogenesis capacity of bio-based polyurethane composite scaffolds. J Mech Behav Biomed Mater 2018; 88:150-159. [PMID: 30172080 DOI: 10.1016/j.jmbbm.2018.08.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/10/2018] [Accepted: 08/19/2018] [Indexed: 10/28/2022]
Abstract
A newly designed hydroxyapatite-polyurethane (HA-PU) composite scaffold was prepared by polymerizing glyceride of castor oil (GCO) with isophorone diisocyanate (IPDI) and HA as fillers. The aim of this study was to determine the effect of HA fillers on the mechanical properties and osteogenesis capacity of the composite scaffolds. The physical and biological properties of the scaffold were evaluated by SEM observation, mechanical testing, cell culture and animal experiments. The results showed that HA fillers enhanced the mechanical properties of PU composite scaffolds such as compressive strength and elastic modulus. The mechanical properties of the scaffolds were seen to increase with increase in HA loading. The compressive strength of composite scaffold with 0 wt%, 20 wt%, 40 wt% of HA was 0.6 ± 0.1 MPa, 2.1 ± 0.1 MPa, and 4.6 ± 0.3 MPa, respectively. In vitro biodegradation studies of scaffolds were carried out. The results showed that all of the scaffolds were susceptible to cholesterol esterase (CE) -catalyzed degradation. HA-PU composite scaffolds exhibited a high affinity to osteoblastic cells and were good template for cell growth and proliferation. When implanted in bone defects of rats, PU scaffolds incorporated HA were biocompatible with the tissue host and had no immune rejection. Moreover, the higher the loading of HA in the composite scaffold, the better chances of osteogenesis. It confirmed that the prepared HA-PU composite scaffolds can be promising candidate for bone repair and bone tissue engineering.
Collapse
Affiliation(s)
- Jingjing Du
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, PR China
| | - Lili Lin
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, PR China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, PR China.
| | - Lulu Niu
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, PR China
| | - Yan Wei
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Kaiqun Wang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Qiaoxia Lin
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Qin Zou
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, PR China.
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, PR China.
| |
Collapse
|
28
|
Pelaez F, Manuchehrabadi N, Roy P, Natesan H, Wang Y, Racila E, Fong H, Zeng K, Silbaugh AM, Bischof JC, Azarin SM. Biomaterial scaffolds for non-invasive focal hyperthermia as a potential tool to ablate metastatic cancer cells. Biomaterials 2018; 166:27-37. [PMID: 29533788 DOI: 10.1016/j.biomaterials.2018.02.048] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 02/23/2018] [Accepted: 02/24/2018] [Indexed: 12/13/2022]
Abstract
Currently, there are very few therapeutic options for treatment of metastatic disease, as it often remains undetected until the burden of disease is too high. Microporous poly(ε-caprolactone) biomaterials have been shown to attract metastasizing breast cancer cells in vivo early in tumor progression. In order to enhance the therapeutic potential of these scaffolds, they were modified such that infiltrating cells could be eliminated with non-invasive focal hyperthermia. Metal disks were incorporated into poly(ε-caprolactone) scaffolds to generate heat through electromagnetic induction by an oscillating magnetic field within a radiofrequency coil. Heat generation was modulated by varying the size of the metal disk, the strength of the magnetic field (at a fixed frequency), or the type of metal. When implanted subcutaneously in mice, the modified scaffolds were biocompatible and became properly integrated with the host tissue. Optimal parameters for in vivo heating were identified through a combination of computational modeling and ex vivo characterization to both predict and verify heat transfer dynamics and cell death kinetics during inductive heating. In vivo inductive heating of implanted, tissue-laden composite scaffolds led to tissue necrosis as seen by histological analysis. The ability to thermally ablate captured cells non-invasively using biomaterial scaffolds has the potential to extend the application of focal thermal therapies to disseminated cancers.
Collapse
Affiliation(s)
- Francisco Pelaez
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - Navid Manuchehrabadi
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Priyatanu Roy
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Harishankar Natesan
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Yiru Wang
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Emilian Racila
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Heather Fong
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - Kevin Zeng
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - Abby M Silbaugh
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - John C Bischof
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA; Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Samira M Azarin
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA.
| |
Collapse
|
29
|
Chen Y, Kawazoe N, Chen G. Preparation of dexamethasone-loaded biphasic calcium phosphate nanoparticles/collagen porous composite scaffolds for bone tissue engineering. Acta Biomater 2018; 67:341-353. [PMID: 29242161 DOI: 10.1016/j.actbio.2017.12.004] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/29/2017] [Accepted: 12/04/2017] [Indexed: 11/18/2022]
Abstract
Although bone is regenerative, its regeneration capacity is limited. For bone defects beyond a critical size, further intervention is required. As an attractive strategy, bone tissue engineering (bone TE) has been widely investigated to repair bone defects. However, the rapid and effective bone regeneration of large non-healing defects is still a great challenge. Multifunctional scaffolds having osteoinductivity and osteoconductivity are desirable to fasten functional bone tissue regeneration. In the present study, biomimetic composite scaffolds of collagen and biphasic calcium phosphate nanoparticles (BCP NPs) with a controlled release of dexamethasone (DEX) and the controlled pore structures were prepared for bone TE. DEX was introduced in the BCP NPs during preparation of the BCP NPs and hybridized with collagen scaffolds, which pore structures were controlled by using pre-prepared ice particulates as a porogen material. The composite scaffolds had well controlled and interconnected pore structures, high mechanical strength and a sustained release of DEX. The composite scaffolds showed good biocompatibility and promoted osteogenic differentiation of hMSCs when used for three-dimensional culture of human bone marrow-derived mesenchymal stem cells. Subcutaneous implantation of the composite scaffolds at the dorsa of athymic nude mice demonstrated that they facilitated the ectopic bone tissue regeneration. The results indicated the DEX-loaded BCP NPs/collagen composite scaffolds had high potential for bone TE. STATEMENT OF SIGNIFICANCE Scaffolds play a crucial role for regeneration of large bone defects. Biomimetic scaffolds having the same composition of natural bone and a controlled release of osteoinductive factors are desirable for promotion of bone regeneration. In this study, composite scaffolds of collagen and biphasic CaP nanoparticles (BCP NPs) with a controlled release nature of dexamethasone (DEX) were prepared and their porous structures were controlled by using ice particulates. In vitro cell culture and in vivo implantation experiments demonstrated the composite scaffolds exerted synergistic effects on the osteogenic differentiation of hMSCs and bone regeneration. The composite scaffolds also showed promotive effect on the formation of capillary blood vessels in the regenerated bone. This study is the first research to prepare DEX-loaded BCP NPs/collagen porous composite scaffolds. The superior performance of the composite scaffolds indicates the composite scaffolds should be useful for bone tissue engineering.
Collapse
Affiliation(s)
- Ying Chen
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Naoki Kawazoe
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Guoping Chen
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
| |
Collapse
|
30
|
Mitra D, Whitehead J, Yasui OW, Leach JK. Bioreactor culture duration of engineered constructs influences bone formation by mesenchymal stem cells. Biomaterials 2017; 146:29-39. [PMID: 28898756 PMCID: PMC5618709 DOI: 10.1016/j.biomaterials.2017.08.044] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/24/2017] [Accepted: 08/25/2017] [Indexed: 11/20/2022]
Abstract
Perfusion culture of mesenchymal stem cells (MSCs) seeded in biomaterial scaffolds provides nutrients for cell survival, enhances extracellular matrix deposition, and increases osteogenic cell differentiation. However, there is no consensus on the appropriate perfusion duration of cellular constructs in vitro to boost their bone forming capacity in vivo. We investigated this phenomenon by culturing human MSCs in macroporous composite scaffolds in a direct perfusion bioreactor and compared their response to scaffolds in continuous dynamic culture conditions on an XYZ shaker. Cell seeding in continuous perfusion bioreactors resulted in more uniform MSC distribution than static seeding. We observed similar calcium deposition in all composite scaffolds over 21 days of bioreactor culture, regardless of pore size. Compared to scaffolds in dynamic culture, perfused scaffolds exhibited increased DNA content and expression of osteogenic markers up to 14 days in culture that plateaued thereafter. We then evaluated the effect of perfusion culture duration on bone formation when MSC-seeded scaffolds were implanted in a murine ectopic site. Human MSCs persisted in all scaffolds at 2 weeks in vivo, and we observed increased neovascularization in constructs cultured under perfusion for 7 days relative to those cultured for 1 day within each gender. At 8 weeks post-implantation, we observed greater bone volume fraction, bone mineral density, tissue ingrowth, collagen density, and osteoblastic markers in bioreactor constructs cultured for 14 days compared to those cultured for 1 or 7 days, and acellular constructs. Taken together, these data demonstrate that culturing MSCs under perfusion culture for at least 14 days in vitro improves the quantity and quality of bone formation in vivo. This study highlights the need for optimizing in vitro bioreactor culture duration of engineered constructs to achieve the desired level of bone formation.
Collapse
Affiliation(s)
- Debika Mitra
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, USA
| | - Jacklyn Whitehead
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, USA
| | - Osamu W Yasui
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, USA
| | - J Kent Leach
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, USA; Department of Orthopaedic Surgery, School of Medicine, University of California, Davis, Sacramento, CA 95817, USA.
| |
Collapse
|
31
|
Alvarez-Lorenzo C, García-González CA, Concheiro A. Cyclodextrins as versatile building blocks for regenerative medicine. J Control Release 2017; 268:269-281. [PMID: 29107127 DOI: 10.1016/j.jconrel.2017.10.038] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/25/2017] [Accepted: 10/26/2017] [Indexed: 01/05/2023]
Abstract
Cyclodextrins (CDs) are one of the most versatile substances produced by nature, and it is in the aqueous biological environment where the multifaceted potential of CDs can be completely unveiled. CDs form inclusion complexes with a variety of guest molecules, including polymers, producing very diverse biocompatible supramolecular structures. Additionally, CDs themselves can trigger cell differentiation to distinct lineages depending on the substituent groups and also promote salt nucleation. These features together with the affinity-driven regulated release of therapeutic molecules, growth factors and gene vectors explain the rising interest for CDs as building blocks in regenerative medicine. Supramolecular poly(pseudo)rotaxane structures and zipper-like assemblies exhibit outstanding viscoelastic properties, performing as syringeable implants. The sharp shear-responsiveness of the supramolecular assemblies is opening new avenues for the design of bioinks for 3D printing and also of electrospun fibers. CDs can also be transformed into polymerizable monomers to prepare alternative nanostructured materials. The aim of this review is to analyze the role that CDs may play in regenerative medicine through the analysis of the last decade research. Most applications of CD-based scaffolds are focussed on non-healing bone fractures, cartilage reparation and skin recovery, but also on even more challenging demands such as neural grafts. For the sake of clarity, main sections of this review are organized according to the architecture of the CD-based scaffolds, mainly syringeable supramolecular hydrogels, 3D printed scaffolds, electrospun fibers, and composites, since the same scaffold type may find application in different tissues.
Collapse
Affiliation(s)
- Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain.
| | - Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain
| |
Collapse
|
32
|
Heydari Z, Mohebbi-Kalhori D, Afarani MS. Engineered electrospun polycaprolactone (PCL)/octacalcium phosphate (OCP) scaffold for bone tissue engineering. Mater Sci Eng C Mater Biol Appl 2017; 81:127-132. [PMID: 28887955 DOI: 10.1016/j.msec.2017.07.041] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/22/2017] [Accepted: 07/27/2017] [Indexed: 01/16/2023]
Abstract
The main challenge in bone tissue engineering is to find suitable biological substitutes which act as scaffolds. Hence, in this work, a novel scaffold composed of octacalcium phosphate (OCP) particles fabricated by co-precipitation method and polycaprolactone (PCL) using electrospinning technique was introduced. The electrospun scaffolds were characterized by SEM, FTIR, XRD, DSC and TGA analysis. The mechanical properties of the composite scaffolds including maximum tensile stress, strain at break and Young modulus were measured. The bioactivity of the scaffolds was determined by soaking in simulated body fluid (SBF). The osteoblast human G-292 cells were seeded on the scaffold's surface for in vitro studies including cell culture and MTT assay. The FTIR and XRD results showed that OCP component has an appropriate incorporation into the polymeric PCL matrix. The SEM analysis exhibited a significant reduction in the fiber size thanks to the OCP. The results of tensile test confirmed that the PCL/OCP composite introduced suitable mechanical properties. Furthermore, the OCP particles led to form hydroxyapatite layer on the scaffold's surface in the vicinity of SBF solution. The obtained results from the MTT assay described that OCP particles have a positive impact on the growth of the osteoblast human G-292 cells on the scaffolds. Overall, aforesaid features of the PCL/OCP composite scaffold make it a great candidate for the bone tissue engineering application.
Collapse
Affiliation(s)
- Zohre Heydari
- Materials Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran
| | - Davod Mohebbi-Kalhori
- Chemical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran.
| | - Mahdi Shafiee Afarani
- Materials Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran
| |
Collapse
|
33
|
Ji L, Qiao W, Zhang Y, Wu H, Miao S, Cheng Z, Gong Q, Liang J, Zhu A. A gelatin composite scaffold strengthened by drug-loaded halloysite nanotubes. Mater Sci Eng C Mater Biol Appl 2017; 78:362-369. [PMID: 28575996 DOI: 10.1016/j.msec.2017.04.070] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 04/11/2017] [Accepted: 04/13/2017] [Indexed: 11/15/2022]
Abstract
Mechanical properties and anti-infection are two of the most concerned issues for artificial bone grafting materials. Bone regeneration porous scaffolds with sustained drug release were developed by freeze-drying the mixture of nanosized drug-loaded halloysite nanotubes (HNTs) and gelatin. The scaffolds showed porous structure and excellent biocompatibility. The mechanical properties of the obtained composite scaffolds were enhanced significantly by HNTs to >300%, comparing to those of gelatin scaffold, and match to those of natural cancellous bones. The ibuprofen-loaded HNTs incorporated in the scaffolds allowed extended drug release over 100h, comparing to 8h when directly mixed the drug into the gelatin scaffold. The biological properties of the composite scaffolds were investigated by culturing MG63 cells on them. The HNTs/gelatin scaffolds with excellent mechanical properties and sustained drug release could be a promising artificial bone grating material.
Collapse
Affiliation(s)
- Lijun Ji
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Wei Qiao
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yuheng Zhang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Huayu Wu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Shiyong Miao
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Zhilin Cheng
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | | | - Ji Liang
- Department of Materials, Tsinghua University, China
| | - Aiping Zhu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| |
Collapse
|
34
|
Gurumurthy B, Bierdeman PC, Janorkar AV. Composition of elastin like polypeptide-collagen composite scaffold influences in vitro osteogenic activity of human adipose derived stem cells. Dent Mater 2016; 32:1270-1280. [PMID: 27524229 DOI: 10.1016/j.dental.2016.07.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 05/16/2016] [Accepted: 07/19/2016] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Collagen-based scaffolds for guided bone regeneration (GBR) are continuously improved to overcome the mechanical weaknesses of collagen. We have previously demonstrated superior mechanical characteristics of the elastin-like polypeptide (ELP) reinforced collagen composites. The objectives of this research were to evaluate the efficacy of ELP-collagen composites to culture human adipose-derived stem cells (hASCs) and allow them to undergo osteogenic differentiation. We hypothesized that hASCs would show a superior osteogenic differentiation in stiffer ELP-collagen composites compared to the neat collagen hydrogels. METHODS Composite specimens were made by varying ELP (0-18mg/mL) and collagen (2-6mg/mL) in a 3:1 ratio. Tensile strength, elastic modulus, and toughness were determined by uniaxial tensile testing. hASCs cultured within the composites were characterized by biochemical assays to measure cell viability, protein content, and osteogenic differentiation (alkaline phosphatase activity, osteocalcin, and Alizarin red staining). Scanning electron microscopy and energy dispersive spectroscopy were used for morphological characterization of composites. RESULTS All composites were suitable for hASCs culture with viable cells over the 22-day culture period. The ELP-collagen composite with 18mg/mL of ELP and 6mg/mL of collagen had greater tensile strength and elastic modulus combined with higher osteogenic activity in terms of differentiation and subsequent mineralization over a period of 3 weeks compared to other compositions. The extra-cellular matrix deposits composed of calcium and phosphorous were specifically seen in the 18:6mg/mL ELP-collagen composite. SIGNIFICANCE The success of the 18:6mg/mL ELP-collagen composite to achieve long-term, 3-dimensional culture and osteogenic differentiation indicates its potential as a GBR scaffold.
Collapse
Affiliation(s)
- Bhuvaneswari Gurumurthy
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Patrick C Bierdeman
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Amol V Janorkar
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, MS 39216, United States.
| |
Collapse
|
35
|
Stocco E, Barbon S, Radossi P, Rajendran S, Dalzoppo D, Bortolami M, Bagno A, Grandi F, Gamba PG, Parnigotto PP, Tagariello G, Grandi C. Autologous chondrocytes as a novel source for neo-chondrogenesis in haemophiliacs. Cell Tissue Res 2016; 366:51-61. [PMID: 27130570 DOI: 10.1007/s00441-016-2408-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 04/11/2016] [Indexed: 02/07/2023]
Abstract
Haemophilic arthropathy is the major cause of disability in patients with haemophilia and, despite prophylaxis with coagulation factor concentrates, some patients still develop articular complications. We evaluate the feasibility of a tissue engineering approach to improve current clinical strategies for cartilage regeneration in haemophiliacs by using autologous chondrocytes (haemophilic chondrocytes; HaeCs). Little is known about articular chondrocytes from haemophilic patients and no characterisation has as yet been performed. An investigation into whether blood exposure alters HaeCs should be interesting from the perspective of autologous implants. The typical morphology and expression of specific target genes and surface markers were therefore assessed by optical microscopy, reverse transcription plus the polymerase chain reaction (PCR), real-time PCR and flow-cytometry. We then considered chondrocyte behaviour on a bio-hybrid scaffold (based on polyvinyl alcohol/Wharton's jelly) as an in vitro model of articular cartilage prosthesis. Articular chondrocytes from non-haemophilic donors were used as controls. HaeC morphology and the resulting immunophenotype CD44(+)/CD49c(+)/CD49e(+)/CD151(+)/CD73(+)/CD49f(-)/CD26(-) resembled those of healthy donors. Moreover, HaeCs were active in the transcription of genes involved in the synthesis of the extracellular matrix proteins of the articular cartilage (ACAN, COL1A, COL2A, COL10A, COL9A, COMP, HAS1, SOX9), although the over-expression of COL1A1, COL10A1, COMP and HAS was observed. In parallel, the composite scaffold showed adequate mechanical and biological properties for cartilage tissue engineering, promoting chondrocyte proliferation. Our preliminary evidence contributes to the characterisation of HaeCs, highlighting the opportunity of using them for autologous cartilage implants in patients with haemophilia.
Collapse
Affiliation(s)
- Elena Stocco
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via Marzolo 5, 35131, Padua, Italy.,Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling (TES) ONLUS, Padua, Italy
| | - Silvia Barbon
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via Marzolo 5, 35131, Padua, Italy.,Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling (TES) ONLUS, Padua, Italy
| | - Paolo Radossi
- Haematology and Haemophilia Centre, Castelfranco Veneto, Italy
| | - Senthilkumar Rajendran
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via Marzolo 5, 35131, Padua, Italy
| | - Daniele Dalzoppo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via Marzolo 5, 35131, Padua, Italy
| | - Marina Bortolami
- Department of Surgery Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Andrea Bagno
- Department of Industrial Engineering, University of Padua, Padua, Italy
| | - Francesca Grandi
- Department of Women's and Children's Health, Pediatric Surgery, University of Padua, Padua, Italy
| | - Pier Giorgio Gamba
- Department of Women's and Children's Health, Pediatric Surgery, University of Padua, Padua, Italy
| | - Pier Paolo Parnigotto
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling (TES) ONLUS, Padua, Italy
| | | | - Claudio Grandi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via Marzolo 5, 35131, Padua, Italy. .,Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling (TES) ONLUS, Padua, Italy.
| |
Collapse
|
36
|
Guo M, Li X. Development of porous Ti6Al4V/chitosan sponge composite scaffold for orthopedic applications. Mater Sci Eng C Mater Biol Appl 2015; 58:1177-81. [PMID: 26478418 DOI: 10.1016/j.msec.2015.09.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/21/2015] [Accepted: 09/14/2015] [Indexed: 12/18/2022]
Abstract
A novel composite scaffold consisting of porous Ti6Al4V part filled with chitosan sponge was fabricated using a combination of electron beam melting and freeze-drying. The mechanical properties of porous Ti6Al4V part were examined via compressive test. The ultimate compressive strength was 85.35 ± 8.68 MPa and the compressive modulus was 2.26 ± 0.42 GPa. The microstructure of composite scaffold was characterized using scanning electron microscopy. The chitosan sponge filled in Ti6Al4V part exhibited highly porous and well-interconnected micro-pore architecture. The osteoblastic cells were seeded on scaffolds to test their seeding efficiency and biocompatibility. Significantly higher cell seeding efficiency was found on composite scaffold. The biological response of osteoblasts on composite scaffolds was superior in terms of improved cell attachment, higher proliferation, and well-spread morphology in relation to porous Ti6Al4V part. These results suggest that the Ti6Al4V/chitosan composite scaffold is potentially useful as a biomedical scaffold for orthopedic applications.
Collapse
Affiliation(s)
- Miao Guo
- College of Life Information Science & Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Xiang Li
- School of Mechanical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Mechanical System and Vibration, Shanghai 200240, China.
| |
Collapse
|
37
|
Jang YJ, Chun SY, Kim GN, Kim JR, Oh SH, Lee JH, Kim BS, Song PH, Yoo ES, Kwon TG. Characterization of a novel composite scaffold consisting of acellular bladder submucosa matrix, polycaprolactone and Pluronic F127 as a substance for bladder reconstruction. Acta Biomater 2014; 10:3117-25. [PMID: 24632539 DOI: 10.1016/j.actbio.2014.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/28/2014] [Accepted: 03/04/2014] [Indexed: 01/30/2023]
Abstract
The bladder is an organ susceptible to a variety of congenital anomalies, injuries and disorders. To address the clinical limitations of existing scaffolds, we fabricated a novel scaffold that can be applied to morphological and functional bladder reconstruction. As a first step to prove the benefit of the scaffold, intensive in vitro and in vivo analyses were conducted. The novel composite scaffold was fabricated using polycaprolactone/Pluronic F127 (PCL/F127) and variable proportions (1, 3, 5 and 10wt.%) of porcine acellular bladder submucosa matrix (BSM). Physicochemical properties and biocompatibilities of the scaffolds were characterized. For cell-mediated analysis, upper-urinary-tract-derived urine stem cells were used. Observations of tensile strength, modulus, porosity, cell adhesion, viability and proliferation characteristics of scaffolds indicated that the optimum proportion of BSM in the composite scaffolds was 3 or 5 wt.%. Based on comparison of 3 and 5 wt.% BSM/PCL/F127 scaffolds with respect to degradability, hydrophilicity, surface properties and functional group presence, the 3 wt.% BSM was chosen for in vivo studies. 8 weeks after kidney-subcapsular implantation of the 3 wt.% BSM/PCL/F127 scaffold, cells remained attached to the surface and there was no evidence of teratomas. A BSM content of 3 wt.% was the optimum proportion for fabrication of the neo scaffold. We predict that the 3 wt.% BSM/PCL/F127 composite scaffold could act as an ideal matrix after cystectomy based on its favorable physicochemical properties and biocompatibilities.
Collapse
|