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Pinky, Sharma A, Arora V, Rao EP, Arava S, Agrawal AK, Jassal M, Mohanty S. Modulating the hAM/PCL Biocomposite for Expedited Wound Healing: A Chemical-Free Approach for Boosting Regenerative Potential. ACS Biomater Sci Eng 2024; 10:3842-3854. [PMID: 38754076 DOI: 10.1021/acsbiomaterials.3c01740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
There is an arising need for effective wound dressings that retain the bioactivity of a cellular treatment, but without the high costs and complexities associated with manufacturing, storing, and applying cell-based products. As skin wound recovery is a dynamic and complicated process, a significant obstacle to the healing of skin wounds is the lack of an appropriate wound dressing that can imitate the microenvironment of healthy skin and prevent bacterial infection. It requires the well-orchestrated integration of biological and molecular events. In this study, we have fabricated full-thickness skin graft biocomposite membranes to target full-thickness skin excision wounds. We reinforced human amniotic membrane (hAM) with electrospun polycaprolactone (PCL) to develop composite membranes, namely, PCL/hAM and PCL/hAM/PCL. Composite membranes were compared for physical, biological, and mechanical properties with the native counterpart. PCL/hAM and PCL/hAM/PCL displayed improved stability and delayed degradation, which further synergically improved the rapid wound healing property of hAM, driven primarily by wound closure analysis and histological assessment. Moreover, PCL/hAM displayed a comparable cellular interaction to hAM. On application as a wound dressing, histological analysis demonstrated that hAM and PCL/hAM promoted early epidermis and dermis formation. Studies on in vivo wound healing revealed that although hAM accelerates cell development, the overall wound healing process is similar in PCL/hAM. This finding is further supported by the immunohistochemical analysis of COL-1/COL-3, CD-31, and TGF-β. Overall, this conjugated PCL and hAM-based membrane has considerable potential to be applied in skin wound healing. The facile fabrication of the PCL/hAM composite membrane provided the self-regenerating wound dressing with the desired mechanical strength as an ideal regenerative property for skin tissue regeneration.
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Affiliation(s)
- Pinky
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Aarushi Sharma
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Varun Arora
- SMITA Research Lab, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - E Pranshu Rao
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Sudheer Arava
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Ashwini K Agrawal
- SMITA Research Lab, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Manjeet Jassal
- SMITA Research Lab, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sujata Mohanty
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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Wang X, Yuan Z, Shafiq M, Cai G, Lei Z, Lu Y, Guan X, Hashim R, El-Newehy M, Abdulhameed MM, Lu X, Xu Y, Mo X. Composite Aerogel Scaffolds Containing Flexible Silica Nanofiber and Tricalcium Phosphate Enable Skin Regeneration. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25843-25855. [PMID: 38717308 DOI: 10.1021/acsami.4c03744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
Poor hemostatic ability and less vascularization at the injury site could hinder wound healing as well as adversely affect the quality of life (QOL). An ideal wound dressing should exhibit certain characteristics: (a) good hemostatic ability, (b) rapid wound healing, and (c) skin appendage formation. This necessitates the advent of innovative dressings to facilitate skin regeneration. Therapeutic ions, such as silicon ions (Si4+) and calcium ions (Ca2+), have been shown to assist in wound repair. The Si4+ released from silica (SiO2) can upregulate the expression of proteins, including the vascular endothelial growth factor (VEGF) and alpha smooth muscle actin (α-SMA), which is conducive to vascularization; Ca2+ released from tricalcium phosphate (TCP) can promote the coagulation alongside upregulating the expression of cell migration and cell differentiation related proteins, thereby facilitating the wound repair. The overarching objective of this study was to exploit short SiO2 nanofibers along with the TCP to prepare TCPx@SSF aerogels and assess their wound healing ability. Short SiO2 nanofibers were prepared by electrospinning and blended with varying proportions of TCP to afford TCPx@SSF aerogel scaffolds. The TCPx@SSF aerogels exhibited good cytocompatibility in a subcutaneous implantation model and manifested a rapid hemostatic effect (hemostatic time 75 s) in a liver trauma model in the rabbit. These aerogel scaffolds also promoted skin regeneration and exhibited rapid wound closure, epithelial tissue regeneration, and collagen deposition. Taken together, TCPx@SSF aerogels may be valuable for wound healing.
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Affiliation(s)
- Xinyi Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Zhengchao Yuan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Muhammad Shafiq
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Guangfang Cai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Zheng Lei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Yifan Lu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Xiangheng Guan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Rashida Hashim
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Meera Moydeen Abdulhameed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Xiao Lu
- Shanghai Orthopedic Biomaterial Technology Innovation Center, Shanghai Bio-lu Biomaterials Co., Ltd., Shanghai 201114, P. R. China
| | - Yuan Xu
- Department of Orthopaedics, Xinqiao Hospital, Army Military Medical University, No. 183, Xinqiao Street, Shapingba District, Chongqing 400037, P. R. China
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
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Cabral CSD, de Melo-Diogo D, Ferreira P, Moreira AF, Correia IJ. Reduced graphene oxide-reinforced tricalcium phosphate/gelatin/chitosan light-responsive scaffolds for application in bone regeneration. Int J Biol Macromol 2024; 259:129210. [PMID: 38184039 DOI: 10.1016/j.ijbiomac.2024.129210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/07/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
Bone is a mineralized tissue with the intrinsic capacity for constant remodeling. Rapid prototyping techniques, using biomaterials that mimic the bone native matrix, have been used to develop osteoinductive and osteogenic personalized 3D structures, which can be further combined with drug delivery and phototherapy. Herein, a Fab@Home 3D Plotter printer was used to promote the layer-by-layer deposition of a composite mixture of gelatin, chitosan, tricalcium phosphate, and reduced graphene oxide (rGO). The phototherapeutic potential of the new NIR-responsive 3D_rGO scaffolds was assessed by comparing scaffolds with different rGO concentrations (1, 2, and 4 mg/mL). The data obtained show that the rGO incorporation confers to the scaffolds the capacity to interact with NIR light and induce a hyperthermy effect, with a maximum temperature increase of 16.7 °C after under NIR irradiation (10 min). Also, the increase in the rGO content improved the hydrophilicity and mechanical resistance of the scaffolds, particularly in the 3D_rGO4. Furthermore, the rGO could confer an NIR-triggered antibacterial effect to the 3D scaffolds, without compromising the osteoblasts' proliferation and viability. In general, the obtained data support the development of 3D_rGO for being applied as temporary scaffolds supporting the new bone tissue formation and avoiding the establishment of bacterial infections.
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Affiliation(s)
- Cátia S D Cabral
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - Paula Ferreira
- Instituto Politécnico de Coimbra, Instituto de Investigação Aplicada, Coimbra, Portugal
| | - André F Moreira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal; CPIRN-UDI/IPG - Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação para o Desenvolvimento do Interior, Instituto Politécnico da Guarda, Guarda, Portugal.
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal; CIEPQPF - Departamento Engenharia Química, Universidade de Coimbra, Coimbra, Portugal.
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Bhushan S, Singh S, Maiti TK, Chaudhari LR, Joshi MG, Dutt D. Silver-doped hydroxyapatite laden chitosan-gelatin nanocomposite scaffolds for bone tissue engineering: an in-vitro and in-ovo evaluation. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:206-227. [PMID: 37947007 DOI: 10.1080/09205063.2023.2279795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023]
Abstract
Despite the advancements in bone tissue engineering, the majority of implant failures are caused due to microbial contamination. So, efforts are being made to develop biomaterial with antimicrobial property enhancing the regeneration of damaged bone tissue. In the present study, chitosan-gelatin (CG) scaffolds containing silver-doped hydroxyapatite (AgHAP) nanoparticles at 0.5%, 1.0% and 1.5% (w/v) were fabricated by lyophilization technique. The results confirmed the synthesis of AgHAP nanoparticles and showed interconnected porous structure of the nanocomposite scaffolds with 89%-75% porosity. Similarly, the swelling percentage, degradation behavior and compressive modulus of CG-AgHAP nanocomposite scaffolds were 1666%, 40% and 0.7 MPa, respectively. The developed nanocomposite scaffolds revealed better antimicrobial properties and bioactivity. The cell culture studies showed favorable viability of Wharton's jelly stem cells on CG-AgHAP nanocomposite scaffolds. CAM (chorioallantoic membrane) assay determined the angiogenic potential with better visualization of blood vessels in the CAM area. Hence, the obtained results confirmed that CG-AgHAP3 nanocomposite scaffold was the most suitable for bone tissue engineering applications among all scaffolds.
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Affiliation(s)
- Sakchi Bhushan
- Department of Paper Technology, IIT Roorkee-Saharanpur Campus, Saharanpur, Uttar Pradesh, India
| | - Sandhya Singh
- Department of Paper Technology, IIT Roorkee-Saharanpur Campus, Saharanpur, Uttar Pradesh, India
| | | | - Leena R Chaudhari
- Department of Stem Cells and Regenerative Medicine, D.Y. Patil Education Society (Deemed to be University), Kolhapur, Maharashtra, India
| | - Meghnad G Joshi
- Department of Stem Cells and Regenerative Medicine, D.Y. Patil Education Society (Deemed to be University), Kolhapur, Maharashtra, India
| | - Dharm Dutt
- Department of Paper Technology, IIT Roorkee-Saharanpur Campus, Saharanpur, Uttar Pradesh, India
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de Carvalho CES, Reis FDS, Silva ERDDFS, Bezerra DDO, Pacheco IKC, Fialho ACV, de Matos JME, de Melo WGG, Leite YKPDC, Argôlo NM, de Carvalho MAM. Characterization of Brazilian Buriti oil biomaterial: the influence on the physical, chemical properties and behaviour of Goat Wharton's jelly mesenchymal stem cells. Anim Reprod 2023; 20:e20230071. [PMID: 38148927 PMCID: PMC10750812 DOI: 10.1590/1984-3143-ar2023-0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 10/30/2023] [Indexed: 12/28/2023] Open
Abstract
The Brazilian Buriti oil presents low extraction costs and relevant antioxidant properties. Thus, this work aimed to analyze Buriti oil biomaterial (BB), within its physicochemical properties, biocompatibility and cellular integration, with the purpose to the use as a growth matrix for Goat Wharton's jelly mesenchymal stem cells. Biomaterials were produced from Buriti oil polymer (Mauritia flexuosa), for it's characterization were performed Infrared Region Spectroscopy (FTIR) and Thermogravimetric Analysis (TG and DTG). The biointegration was analyzed by Scanning Electron Microscopy (SEM) and histological techniques. In order to investigate biocompatibility, MTT (3-(4,5-dimetil-2-tiazolil)-2,5-difenil-2H-tetrazólio) test and hemolytic activity tests were performed. The activation capacity of immune system cellswas measured by phagocytic capacity assay and nitric oxide synthesis . The BB presented an amorphous composition, with high thermal stability and high water expansion capacity, a surface with micro and macropores, and good adhesion of Wharton's jelly mesenchymal stem cells (MSCWJ). We verified the absence of cytotoxicity and hemolytic activity, in addition, BB did not stimulate the activation of macrophages. Proving to be a safe material for direct cultivation and also for manufacturing of compounds used for in vivo applications.
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Affiliation(s)
- Camila Ernanda Sousa de Carvalho
- Programa de Pós-graduação em Zootecnia Tropical, Centro de Ciências Agrárias, Universidade Federal do Piauí, Teresina, PI, Brasil
| | - Fernando da Silva Reis
- Programa de Pós-graduação em Ciências dos Materiais, Centro de Ciências da Natureza, Universidade Federal do Piauí, Teresina, PI, Brasil
| | | | - Dayseanny de Oliveira Bezerra
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Centro de Ciências Agrárias, Universidade Federal do Piauí, Teresina, PI, Brasil
| | | | | | - José Milton Elias de Matos
- Programa de Pós-graduação em Ciências dos Materiais, Centro de Ciências da Natureza, Universidade Federal do Piauí, Teresina, PI, Brasil
| | - Wanderson Gabriel Gomes de Melo
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Centro de Ciências Agrárias, Universidade Federal do Piauí, Teresina, PI, Brasil
| | | | - Napoleão Martins Argôlo
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Centro de Ciências Agrárias, Universidade Federal do Piauí, Teresina, PI, Brasil
| | - Maria Acelina Martins de Carvalho
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Centro de Ciências Agrárias, Universidade Federal do Piauí, Teresina, PI, Brasil
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Wang Z, Xu Z, Yang X, Li M, Yip RCS, Li Y, Chen H. Current application and modification strategy of marine polysaccharides in tissue regeneration: A review. BIOMATERIALS ADVANCES 2023; 154:213580. [PMID: 37634336 DOI: 10.1016/j.bioadv.2023.213580] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/24/2023] [Accepted: 08/04/2023] [Indexed: 08/29/2023]
Abstract
Marine polysaccharides (MPs) are exceptional bioactive materials that possess unique biochemical mechanisms and pharmacological stability, making them ideal for various tissue engineering applications. Certain MPs, including agarose, alginate, carrageenan, chitosan, and glucan have been successfully employed as biological scaffolds in animal studies. As carriers of signaling molecules, scaffolds can enhance the adhesion, growth, and differentiation of somatic cells, thereby significantly improving the tissue regeneration process. However, the biological benefits of pure MPs composite scaffold are limited. Therefore, physical, chemical, enzyme modification and other methods are employed to expand its efficacy. Chemically, the structural properties of MPs scaffolds can be altered through modifications to functional groups or molecular weight reduction, thereby enhancing their biological activities. Physically, MPs hydrogels and sponges emulate the natural extracellular matrix, creating a more conducive environment for tissue repair. The porosity and high permeability of MPs membranes and nanomaterials expedite wound healing. This review explores the distinctive properties and applications of select MPs in tissue regeneration, highlighting their structural versatility and biological applicability. Additionally, we provide a brief overview of common modification strategies employed for MP scaffolds. In conclusion, MPs have significant potential and are expected to be a novel regenerative material for tissue engineering.
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Affiliation(s)
- Zhaokun Wang
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Zhiwen Xu
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Xuan Yang
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Man Li
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Ryan Chak Sang Yip
- Center for Nanomedicine, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
| | - Yuanyuan Li
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY 14853, USA.
| | - Hao Chen
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China; The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, NO. 1800 Lihu Road, Wuxi 214122, China.
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Shiu BC, Wulin S, Yuan QY, Zhang Y, Yu Z. Zn 2+ @Polyvinylpyrrolidone and Urushiol Preparation of Nanofibrous Membranes and Their Synergistic Effect. Macromol Biosci 2023; 23:e2300233. [PMID: 37483109 DOI: 10.1002/mabi.202300233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/09/2023] [Accepted: 07/19/2023] [Indexed: 07/25/2023]
Abstract
In this study, lacquer is gathered from a lacquer tree and rotary evaporation is used to remove impurities to obtain urushiol. Next, 10 mL of anhydrous ethanol serves as the solvent for blending polyvinylpyrrolidone (PVP) at a specified content (0.7 g and 0.2-0.7 g urushiol) to form an electrospinning solution. Electrospinning is carried out with a voltage of 18 kV to prepare PVP/urushiol nanofibrous membranes. At a ratio of 7/4, the PVP/urushiol nanofibrous membranes are not eroded in 98% sulfuric acid and these membranes also demonstrate a 50-60% antibacterial effect against Staphylococcus aureus and Escherichia coli. Moreover, the antibacterial effect can be boosted to 98% with the incorporation of zinc ions. The results indicate that anhydrous ethanol can remove the sensitization of urushiol from PVP/urushiol membranes. Furthermore, animal test results indicate that when rats are in contact with PVP/urushiol anhydrous ethanol for 48 h, their skins are free from dark brown skin allergy. The presence of PVP eliminates the sensitization of urushiol, and the nanofibrous membranes demonstrate low toxicity. Hence, urushiol is the only natural material that enables PVP to withstand 98% sulfuric acid as well as acquire hydrolyzability, thereby qualify PVP as a medical material.
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Affiliation(s)
- Bing-Chiuan Shiu
- Fujian Engineering Research Center of New Chinese lacquer Material College of Material and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, China
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, Fujian, 350108, China
| | - Shihan Wulin
- Fujian Engineering Research Center of New Chinese lacquer Material College of Material and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, China
| | - Qian-Yu Yuan
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Ying Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Zhicai Yu
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, Fujian, 350108, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing and Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China
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Yu M, Song D, Guo X, Hu G, Pei M, Fan Z, Xi L, Wen M, Ci Z, Zhou G, Ren W. Regeneration of Mechanically Enhanced Tissue-Engineered Cartilage Based on the Decalcified Bone Matrix Framework. ACS Biomater Sci Eng 2023; 9:4994-5005. [PMID: 37493452 DOI: 10.1021/acsbiomaterials.3c00488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Human decalcified bone matrix (HDBM) is a framework with a porous structure and good biocompatibility. Nevertheless, its oversized pores lead to massive cell loss when seeding chondrocytes directly over it. Gelatin (GT) is a type of protein obtained by partial hydrolysis of collagen. The GT scaffold can be prepared from the GT solution through freeze-drying. More importantly, the pore size of the GT scaffold can be controlled by optimizing the concentration of the GT solution. Similarly, when different concentrations of gelatin are combined with HDBM and then freeze-dried, the pore size of the HDBM can be modified to different degrees. In this study, the HDBM framework was modified with 0.3, 0.6, and 0.9%GT, resulting in an improved pore size and adhesion rate. Results showed that the HDBM framework with 0.6%GT (HDBM-0.6%GT) had an average pore size of 200 μm, which was more suitable for chondrocyte seeding. Additionally, our study validated that porcine decalcified bone matrix (PDBM) had a proper pore structure. Chondrocytes were in vitro seeded on the three frameworks for 4 weeks and then implanted in nude mice and autologous goats, respectively. The in vivo cartilage regeneration results showed that HDBM-0.6%GT and PDBM frameworks compensated for the oversized pores of the HDBM framework. Moreover, they showed successfully regenerated more mature cartilage tissue with a certain shape in animals.
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Affiliation(s)
- Mengyuan Yu
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Daiying Song
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Key Laboratory of Tissue Engineering, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, PR China
- National Tissue Engineering Center of China, Shanghai 200241, PR China
- Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong 261021, PR China
| | - Xueqiang Guo
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Guanhuai Hu
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Mengyu Pei
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Zhenlin Fan
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Lingling Xi
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Mengnan Wen
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Zheng Ci
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200430, PR China
| | - Guangdong Zhou
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Key Laboratory of Tissue Engineering, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, PR China
- National Tissue Engineering Center of China, Shanghai 200241, PR China
| | - Wenjie Ren
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
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9
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Pérez-Moreno A, Piñero M, Fernández-Montesinos R, Pinaglia-Tobaruela G, Reyes-Peces MV, Mesa-Díaz MDM, Vilches-Pérez JI, Esquivias L, de la Rosa-Fox N, Salido M. Chitosan-Silica Hybrid Biomaterials for Bone Tissue Engineering: A Comparative Study of Xerogels and Aerogels. Gels 2023; 9:gels9050383. [PMID: 37232975 DOI: 10.3390/gels9050383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/26/2023] [Accepted: 04/29/2023] [Indexed: 05/27/2023] Open
Abstract
Chitosan (CS) is a natural biopolymer that shows promise as a biomaterial for bone-tissue regeneration. However, because of their limited ability to induce cell differentiation and high degradation rate, among other drawbacks associated with its use, the creation of CS-based biomaterials remains a problem in bone tissue engineering research. Here we aimed to reduce these disadvantages while retaining the benefits of potential CS biomaterial by combining it with silica to provide sufficient additional structural support for bone regeneration. In this work, CS-silica xerogel and aerogel hybrids with 8 wt.% CS content, designated SCS8X and SCS8A, respectively, were prepared by sol-gel method, either by direct solvent evaporation at the atmospheric pressure or by supercritical drying in CO2, respectively. As reported in previous studies, it was confirmed that both types of mesoporous materials exhibited large surface areas (821 m2g-1-858 m2g-1) and outstanding bioactivity, as well as osteoconductive properties. In addition to silica and chitosan, the inclusion of 10 wt.% of tricalcium phosphate (TCP), designated SCS8T10X, was also considered, which stimulates a fast bioactive response of the xerogel surface. The results here obtained also demonstrate that xerogels induced earlier cell differentiation than the aerogels with identical composition. In conclusion, our study shows that the sol-gel synthesis of CS-silica xerogels and aerogels enhances not only their bioactive response, but also osteoconduction and cell differentiation properties. Therefore, these new biomaterials should provide adequate secretion of the osteoid for a fast bone regeneration.
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Affiliation(s)
- Antonio Pérez-Moreno
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
| | - Manuel Piñero
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), Universidad de Cadiz, 11510 Cádiz, Spain
| | - Rafael Fernández-Montesinos
- Instituto de Biomedicina de Cádiz (INIBICA), Universidad de Cadiz, 11510 Cádiz, Spain
- Departamento de Histología, SCIBM, Facultad de Medicina, Universidad de Cádiz, 11004 Cádiz, Spain
| | - Gonzalo Pinaglia-Tobaruela
- Instituto de Biomedicina de Cádiz (INIBICA), Universidad de Cadiz, 11510 Cádiz, Spain
- Departamento de Histología, SCIBM, Facultad de Medicina, Universidad de Cádiz, 11004 Cádiz, Spain
| | - María V Reyes-Peces
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
| | - María Del Mar Mesa-Díaz
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), Universidad de Cadiz, 11510 Cádiz, Spain
- Departamento de Ingeniería Química, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
| | - José Ignacio Vilches-Pérez
- Instituto de Biomedicina de Cádiz (INIBICA), Universidad de Cadiz, 11510 Cádiz, Spain
- Departamento de Histología, SCIBM, Facultad de Medicina, Universidad de Cádiz, 11004 Cádiz, Spain
| | - Luis Esquivias
- Departamento de Física de la Materia Condensada, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Nicolás de la Rosa-Fox
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), Universidad de Cadiz, 11510 Cádiz, Spain
| | - Mercedes Salido
- Instituto de Biomedicina de Cádiz (INIBICA), Universidad de Cadiz, 11510 Cádiz, Spain
- Departamento de Histología, SCIBM, Facultad de Medicina, Universidad de Cádiz, 11004 Cádiz, Spain
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10
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Bhushan S, Singh S, Maiti TK, Das A, Barui A, Chaudhari LR, Joshi MG, Dutt D. Cerium oxide nanoparticles disseminated chitosan gelatin scaffold for bone tissue engineering applications. Int J Biol Macromol 2023; 236:123813. [PMID: 36858088 DOI: 10.1016/j.ijbiomac.2023.123813] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/07/2023] [Accepted: 02/19/2023] [Indexed: 03/03/2023]
Abstract
Cell-free and cell-loaded constructs are used to bridge the critical-sized bone defect. Oxidative stress at the site of the bone defects is a major interference that slows bone healing. Recently, there has been an increase in interest in enhancing the properties of three-dimensional scaffolds with free radical scavenging materials. Cerium oxide nanoparticles (CNPs) can scavenge free radicals due to their redox-modulating property. In this study, freeze-drying was used to fabricate CG-CNPs nanocomposite scaffolds using gelatin (G), chitosan (C), and cerium oxide nanoparticles. Physico-chemical, mechanical, and biological characterization of CG-CNPs scaffolds were studied. CG-CNPs scaffolds demonstrated better results in terms of physicochemical, mechanical, and biological properties as compared to CG-scaffold. CG-CNPs scaffolds were cyto-friendly to MC3T3-E1 cells studied by performing in-vitro and in-ovo studies. The scaffold's antimicrobial study revealed high inhibition zones against Gram-positive and Gram-negative bacteria. With 79 % porosity, 45.99 % weight loss, 178.25 kPa compressive modulus, and 1.83 Ca/P ratio, the CG-CNP2 scaffold displays the best characteristics. As a result, the CG-CNP2 scaffolds are highly biocompatible and could be applied to repair bone defects.
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Affiliation(s)
- Sakchi Bhushan
- Department of Paper Technology, IIT Roorkee, Saharanpur 247001, India
| | - Sandhya Singh
- Department of Paper Technology, IIT Roorkee, Saharanpur 247001, India
| | - Tushar Kanti Maiti
- Department of Polymer and Process Engineering, IIT Roorkee, Saharanpur 247001, India
| | - Ankita Das
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India
| | - Ananya Barui
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India
| | - Leena R Chaudhari
- Department of Stem Cells and Regenerative Medicine, D.Y. Patil Education Society (Deemed to be University), Kolhapur, India
| | - Meghnad G Joshi
- Department of Stem Cells and Regenerative Medicine, D.Y. Patil Education Society (Deemed to be University), Kolhapur, India
| | - Dharm Dutt
- Department of Paper Technology, IIT Roorkee, Saharanpur 247001, India.
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11
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Liu H, Liu L, Tan J, Yan Y, Xue J. Definition of Pore Size in 3D‐Printed Porous Implants: A Review. CHEMBIOENG REVIEWS 2023. [DOI: 10.1002/cben.202200043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hao Liu
- University of South China Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School 69 Chuanshan Road 421001 Hengyang Hunan China
| | - Lu‐Lu Liu
- University of South China Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School 69 Chuanshan Road 421001 Hengyang Hunan China
| | - Jing‐Hua Tan
- University of South China Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School 69 Chuanshan Road 421001 Hengyang Hunan China
| | - Yi‐Guo Yan
- University of South China Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School 69 Chuanshan Road 421001 Hengyang Hunan China
| | - Jing‐Bo Xue
- University of South China Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School 69 Chuanshan Road 421001 Hengyang Hunan China
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12
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Wang Q, Li M, Cui T, Wu R, Guo F, Fu M, Zhu Y, Yang C, Chen B, Sun G. A Novel Zwitterionic Hydrogel Incorporated with Graphene Oxide for Bone Tissue Engineering: Synthesis, Characterization, and Promotion of Osteogenic Differentiation of Bone Mesenchymal Stem Cells. Int J Mol Sci 2023; 24:ijms24032691. [PMID: 36769013 PMCID: PMC9916718 DOI: 10.3390/ijms24032691] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/18/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Zwitterionic materials are widely applied in the biomedical field due to their excellent antimicrobial, non-cytotoxicity, and antifouling properties but have never been applied in bone tissue engineering. In this study, we synthesized a novel zwitterionic hydrogel incorporated with graphene oxide (GO) using maleic anhydride (MA) as a cross-linking agent by grafted L-cysteine (L-Cys) as the zwitterionic material on maleilated chitosan via click chemistry. The composition and each reaction procedure of the novel zwitterionic hydrogel were characterized via X-ray diffraction (XRD) and Fourier transformed infrared spectroscopy (FT-IR), while the morphology was imaged by scanning electron microscope (SEM). In vitro cell studies, CCK-8 and live/dead assay, alkaline phosphatase activity, W-B, and qRT-CR tests showed zwitterionic hydrogel incorporated with GO remarkably enhanced the osteogenic differentiation of bone mesenchymal stem cells (BMSCs); it is dose-dependent, and 2 mg/mL GO is the optimum concentration. In vivo tests also indicated the same results. Hence, these results suggested the novel zwitterionic hydrogel exhibited porous characteristics similar to natural bone tissue. In conclusion, the zwitterionic scaffold has highly biocompatible and mechanical properties. When GO was incorporated in this zwitterionic scaffold, the zwitterionic scaffold slows down the release rate and reduces the cytotoxicity of GO. Zwitterions and GO synergistically promote the proliferation and osteogenic differentiation of rBMSCs in vivo and in vitro. The optimal concentration is 2 mg/mL GO.
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Affiliation(s)
- Qidong Wang
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200120, China
| | - Meng Li
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200120, China
| | - Tianming Cui
- Shanghai Research Institute for Intelligent Autonomous Systems, Tongji University, Shanghai 200092, China
| | - Rui Wu
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Fangfang Guo
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai 200092, China
| | - Mei Fu
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200120, China
| | - Yuqian Zhu
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai 200092, China
| | - Chensong Yang
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200120, China
| | - Bingdi Chen
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai 200092, China
- Correspondence: (B.C.); (G.S.)
| | - Guixin Sun
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200120, China
- Correspondence: (B.C.); (G.S.)
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13
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Cui Y, Liu H, Tian Y, Fan Y, Li S, Wang G, Wang Y, Peng C, Wu D. Dual-functional composite scaffolds for inhibiting infection and promoting bone regeneration. Mater Today Bio 2022; 16:100409. [PMID: 36090611 PMCID: PMC9449864 DOI: 10.1016/j.mtbio.2022.100409] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 12/14/2022] Open
Abstract
The treatment of infected bone defects is an intractable problem in orthopedics. It comprises two critical parts, namely that of infection control and bone defect repair. According to these two core tasks during treatment, the ideal approach of simultaneously controlling infection and repairing bone defects is promising treatment strategy. Several engineered biomaterials and drug delivery systems with dual functions of anti-bacterial action and ostogenesis-promotion have been developed and demonstrated excellent therapeutic effects. Compared with the conventional treatment method, the dual-functional composite scaffold can provide one-stage treatment avoiding multiple surgeries, thereby remarkably simplifying the treatment process and reducing the treatment time, overcoming the disadvantages of conventional bone transplantation. In this review, the impaired bone repair ability and its specific mechanisms in the microenvironment of pathogen infection and excessive inflammation were analyzed, providing a theoretical basis for the treatment of infectious bone defects. Furthermore, we discussed the composite dual-functional scaffold composed of a combination of antibacterial and osteogenic material. Finally, a series of advanced drug delivery systems with antibacterial and bone-promoting capabilities were summarized and discussed. This review provides a comprehensive understanding for the microenvironment of infectious bone defects and leading-edge design strategies for the antibacterial and bone-promoting dual-function scaffold, thus providing clinically significant treatment methods for infectious bone defects. Antibacterial and bone-promoting dual-function scaffolds are ideal strategies for treatment of infectious bone defects. The effect of infection on bone repair was summarized in detail from four important aspects. A variety of dual-function scaffolds based on antibacterial and osteogenic materials were discussed. Dual-function drug delivery systems promoting repair of infectious bone defects by locally releasing functional agents. Leading-edge design strategies, challenges and prospects for dual-functional biomaterials were provided.
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14
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Bai B, Hao J, Hou M, Wang T, Wu X, Liu Y, Wang Y, Dai C, Hua Y, Ji G, Zhou G. Repair of Large-Scale Rib Defects Based on Steel-Reinforced Concrete-Designed Biomimetic 3D-Printed Scaffolds with Bone-Mineralized Microenvironments. ACS APPLIED MATERIALS & INTERFACES 2022; 14:42388-42401. [PMID: 36094886 DOI: 10.1021/acsami.2c08422] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tissue engineering technology provides a promising approach for large-scale bone reconstruction in cases of extensive chest wall defects. However, previous studies did not consider meticulous scaffold design specific to large-scale rib regeneration in terms of three-dimensional (3D) shape, proper porous structures, enough mechanical strength, and osteogenic microenvironments. Thus, there is an urgent need to develop an appropriate bone biomimetic scaffold (BBS) to address this problem. In this study, a BBS with controllable 3D morphology, appropriate mechanical properties, good biocompatibility and biodegradability, porous structure suitable for cell loading, and a biomimetic osteogenic inorganic salt (OIS) microenvironment was successfully prepared by integrating computer-aided design, 3D-printing, cast-molding, and freeze-drying technologies. The addition of the OIS in the scaffold substantially promoted ectopic bone regeneration in vivo, which might be attributed to the activation of osteogenic and angiogenic signaling pathways as well as upregulated expression of osteogenic genes. More importantly, dual long rib defects could be successfully repaired and medullary cavity recanalized by the rib-shaped mature cortical bone, which might be mediated by the activation of osteoclast signaling pathways. Thus, this paper presents a reliable BBS and proposes a new strategy for the repair of large-scale bone defects.
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Affiliation(s)
- Baoshuai Bai
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, Shandong 261000, China
- National Tissue Engineering Center of China, Shanghai 200001, China
| | - Junxiang Hao
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, Shandong 261000, China
- National Tissue Engineering Center of China, Shanghai 200001, China
| | - Mengjie Hou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China
- National Tissue Engineering Center of China, Shanghai 200001, China
| | - Tao Wang
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, Shandong 261000, China
- National Tissue Engineering Center of China, Shanghai 200001, China
| | - Xiaodi Wu
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, Shandong 261000, China
- National Tissue Engineering Center of China, Shanghai 200001, China
| | - Yanhan Liu
- Shanghai JiaoTong University School of Medicine, Shanghai 200240, China
| | - Yiyang Wang
- National Tissue Engineering Center of China, Shanghai 200001, China
- Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China
| | - Chengxiang Dai
- Cellular Biomedicine Group, Incorporated, No. 85 Faladi Road, Building 3, Pudong New Area, Shanghai 201210, China
| | - Yujie Hua
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China
- National Tissue Engineering Center of China, Shanghai 200001, China
- Shanghai JiaoTong University School of Medicine, Shanghai 200240, China
| | - Guangyu Ji
- National Tissue Engineering Center of China, Shanghai 200001, China
- Shanghai JiaoTong University School of Medicine, Shanghai 200240, China
- Department of Thoracic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, Shandong 261000, China
- National Tissue Engineering Center of China, Shanghai 200001, China
- Shanghai JiaoTong University School of Medicine, Shanghai 200240, China
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15
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Doustdar F, Olad A, Ghorbani M. Effect of glutaraldehyde and calcium chloride as different crosslinking agents on the characteristics of chitosan/cellulose nanocrystals scaffold. Int J Biol Macromol 2022; 208:912-924. [PMID: 35367272 DOI: 10.1016/j.ijbiomac.2022.03.193] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 03/17/2022] [Accepted: 03/28/2022] [Indexed: 11/25/2022]
Abstract
The effect of glutaraldehyde and calcium cations as covalent and ionic crosslinkers was investigated on the main characteristics of scaffolds based on chitosan and cellulose nanocrystals. Therefore, four different scaffolds based on chitosan/cellulose nanocrystals with different crosslinking methods were fabricated using the freeze-drying method for potential use in bone tissue engineering. The structural and chemical features of prepared scaffolds were studied by the FTIR technique. FESEM images revealed that all scaffold samples are porous three-dimensional networks in which the pores are connected. TGA analysis showed that the thermal stability of scaffolds based on chitosan/cellulose nanocrystals has not been changed significantly by using different crosslinking methods. The chitosan/cellulose nanocrystals scaffold crosslinked by glutaraldehyde represented the highest compressive strength and the uncrosslinked scaffold showed the highest swelling ratio in comparison to the other scaffolds. The fastest degradation rate belonged to the scaffold crosslinked by calcium cations. FESEM images and EDX analysis confirmed that fabricated scaffolds have good biomineralization ability. The cell viability and cell attachment results indicated that all four scaffolds support cell proliferation and cell adhesion. However, the viability of NIH3T3 fibroblast cells in the presence of glutaraldehyde-containing scaffolds was lower than that of other scaffolds.
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Affiliation(s)
- Fatemeh Doustdar
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Marjan Ghorbani
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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16
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Ding H, Xu P, Yu X, Hu M, Wan C, Lei N, Luo Y, Yu X. The Construction of a Self-assembled Coating with Chitosan-Grafted Reduced Graphene Oxide on Porous Calcium Polyphosphate Scaffolds for Bone Tissue Engineering. Biomed Mater 2022; 17. [PMID: 35545061 DOI: 10.1088/1748-605x/ac6eab] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/11/2022] [Indexed: 11/11/2022]
Abstract
Bone regeneration in large bone defects remains one of the major challenges in orthopedic surgery. Calcium polyphosphate (CPP) scaffolds possess excellent biocompatibility and exhibits good bone ingrowth. However, the present CPP scaffolds lack enough osteoinductive activity to facilitate bone regeneration at bone defects that exceed the critical size threshold. To endow CPP scaffolds with improved osteoinductive activity for better bone regeneration, in this study, a self-assembled coating with chitosan-grafted reduced graphene oxide (CS-rGO) sheets was successfully constructed onto the surface of CPP scaffolds through strong electrostatic interaction and hydrogen bonds. Our results showed that the obtained CPP/CS-rGO composite scaffolds exhibited highly improved biomineralization and considerable antibacterial activity. More importantly, CPP/CS-rGO composite scaffolds could drive osteogenic differentiation of BMSCs and significantly up-regulate the expression of osteogenesis-related proteins in vitro. Meanwhile, the CS-rGO coating could inhibit aseptic loosening and improve interfacial osseointegration through stimulating BMSCs to secrete more OPG and lesser RANKL. Overall, the CS-rGO coating adjusts CPP scaffolds' biological environment interface and endows CPP scaffolds with more bioactivity.
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Affiliation(s)
- Hongmei Ding
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Peng Xu
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan, Chengdu, 621000, CHINA
| | - Xiaoshuang Yu
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Mengyue Hu
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Chang Wan
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Ningning Lei
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Yihao Luo
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Xixun Yu
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
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17
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Lornoxicam-Loaded Chitosan-Decorated Nanoemulsion: Preparation and In Vitro Evaluation for Enhanced Transdermal Delivery. Polymers (Basel) 2022; 14:polym14091922. [PMID: 35567091 PMCID: PMC9105490 DOI: 10.3390/polym14091922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 01/27/2023] Open
Abstract
Nanoemulsions are promising drug delivery systems for the administration of poorly soluble drugs like lornoxicam (LRX) by oral or parenteral routes. Such formulations work perfectly for transdermal delivery of lornoxicam-type drugs. It has also been established that formulating such a delivery system is highly dependent on the presence, type, and concentration of excipients taking part in the formulation. The inherent characteristics of nanoemulsion (NE), i.e., smaller globule size and excipient nature, facilitate the drug's passage through skin. The current study was aimed at the development of an NE-based formulation of LRX to improve the drug solubility in vitro as well as to enhance drug skin permeation to promote therapeutic outcome in appropriate time. Spontaneous self-emulsification technique was utilized to develop optimized LRX-encapsulated NE-based formulations. ATR-FTIR spectra of the pure drug and various formulations did not show any interaction between the drug and various formulation excipients showing compatibility. Globule size for stable formulations ranged between 63-168 nm. These formulations were characterized for viscosity, surface tension, pH, drug encapsulation efficiency, in vitro drug release, and drug skin permeation studies. Chitosan-decorated optimized NE formulation of LRX showed about 58.82% cumulative drug release, showing an anomalous non-Fickian diffusion mechanism of drug release. Drug encapsulation efficiency, in vitro drug release, and skin permeation studies exhibited promising results. An appreciable drug entrapment efficiency was exhibited by optimized NE formulations LRX-6, 71.91 ± 3.17% and C-LRX, 65.25 ± 4.89%. Permeability parameters like enhancement ratio (Er), permeability constant (Kp), and steady state flux (Jss) showed higher values and exhibited good results based on formulation type. The selected promising formulation type "LRX-6" showed significantly different results as compared to other formulations (LRX-4, 5, and 7). The skin permeation property of the LRX-6 formulation was compared to similar chitosan-based formulations and was found to have better skin permeation results than chitosan-based formulations. This study clearly exhibited that an LRX-containing NE-based formulation can be formulated to form a stable drug delivery system. Such formulations are promising in terms of physicochemical characteristics, improved solubility, and high skin permeation potential.
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18
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Zhang W, Zhang Y, Li X, Cao Z, Mo Q, Sheng R, Ling C, Chi J, Yao Q, Chen J, Wang H. Multifunctional polyphenol-based silk hydrogel alleviates oxidative stress and enhances endogenous regeneration of osteochondral defects. Mater Today Bio 2022; 14:100251. [PMID: 35469254 PMCID: PMC9034395 DOI: 10.1016/j.mtbio.2022.100251] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/08/2022] [Accepted: 03/31/2022] [Indexed: 01/25/2023] Open
Abstract
In osteochondral defects, oxidative stress caused by elevated levels of reactive oxygen species (ROS) can disrupt the normal endogenous repair process. In this study, a multifunctional hydrogel composed of silk fibroin (SF) and tannic acid (TA), the FDA-approved ingredients, was developed to alleviate oxidative stress and enhance osteochondral regeneration. In this proposed hydrogel, SF first interacts with TA to form a hydrogen-bonded supramolecular structure, which is subsequently enzymatically crosslinked to form a stable hydrogel. Furthermore, TA had multiple phenolic hydroxyl groups that formed interactions with the therapeutic molecule E7 peptide for controlled drug delivery. In vitro investigations showed that SF-TA and SF-TA-E7 hydrogels exhibited a multitude of biological effects including scavenging of ROS, maintaining cell viability, and promoting the proliferation of bone marrow mesenchymal stem cells (BMSCs) against oxidative stress. The proteomic analysis indicated that SF-TA and SF-TA-E7 hydrogels suppressed oxidative stress, which in turn improved cell proliferation in multiple proliferation and apoptosis-related pathways. In rabbit osteochondral defect model, SF-TA and SF-TA-E7 hydrogels promoted enhanced regeneration of both cartilage and subchondral bone as compared to hydrogel without TA incorporation. These findings indicated that the multifunctional SF-TA hydrogel provided a microenvironment suitable for the endogenous regeneration of osteochondral defects.
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Affiliation(s)
- Wei Zhang
- School of Medicine, Southeast University, 210009, Nanjing, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096, Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), China
- Corresponding author. School of Medicine, Southeast University, 210009, Nanjing, China.
| | - Yanan Zhang
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Xiaolong Li
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Zhicheng Cao
- School of Medicine, Southeast University, 210009, Nanjing, China
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Qingyun Mo
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Renwang Sheng
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Chen Ling
- School of Medicine, Southeast University, 210009, Nanjing, China
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Jiayu Chi
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Qingqiang Yao
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), China
- Corresponding author. Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China.
| | - Jialin Chen
- School of Medicine, Southeast University, 210009, Nanjing, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096, Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), China
- Corresponding author. School of Medicine, Southeast University, 210009, Nanjing, China.
| | - Hongmei Wang
- School of Medicine, Southeast University, 210009, Nanjing, China
- Department of Pharmaceutical Sciences, Binzhou Medical University, 264003, Yantai, Shandong, China
- Corresponding author. School of Medicine, Southeast University, 210009, Nanjing, China.
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19
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Vascular Endothelial Growth Factor-Capturing Aligned Electrospun Polycaprolactone/Gelatin Nanofibers Promote Patellar Ligament Regeneration. Acta Biomater 2022; 140:233-246. [PMID: 34852300 DOI: 10.1016/j.actbio.2021.11.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 11/21/2021] [Accepted: 11/24/2021] [Indexed: 01/11/2023]
Abstract
Ligament injuries are common in sports and other rigorous activities. It is a great challenge to achieve ligament regeneration after an injury due the avascular structure and low self-renewal capability. Herein, we developed vascular endothelial growth factor (VEGF)-binding aligned electrospun poly(caprolactone)/gelatin (PCL/Gel) scaffolds by incorporating prominin-1-binding peptide (BP) sequence and exploited them for patellar ligament regeneration. The adsorption of BP onto scaffolds was discerned by various techniques, such as Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and confocal laser scanning microscope. The accumulation of VEGF onto scaffolds correlated with the concentration of the peptide in vitro. BP-anchored PCL/Gel scaffolds (BP@PCL/Gel) promoted the tubular formation of human umbilical vein endothelial cells (HUVECs) and wound healing in vitro. Besides, BP containing scaffolds exhibited higher content of CD31+ cells than that of the control scaffolds at 1 week after implantation in vivo. Moreover, BP containing scaffolds improved biomechanical properties and facilitated the regeneration of matured collagen in patellar ligament 4 weeks after implantation in mice. Overall, this strategy of peptide-mediated orchestration of VEGF provides an enticing platform for the ligament regeneration, which may also have broad implications for tissue repair applications. STATEMENT OF SIGNIFICANCE: Ligament injuries are central to sports and other rigorous activities. Given to the avascular nature and poor self-healing capability of injured ligament tissues, it is a burgeoning challenge to fabricate tissue-engineered scaffolds for ligament reconstruction. Vascular endothelial growth factor (VEGF) is pivotal to the neo-vessel formation. However, the high molecular weight of VEGF as well as its short half-life in vitro and in vivo limits its therapeutic potential. To circumvent these limitations, herein, we functionalized aligned electrospun polycaprolactone/gelatin (PCL/Gel)-based scaffolds with VEGF-binding peptide (BP) and assessed their biocompatibility and performance in vitro and in vivo. BP-modified scaffolds accumulated VEGF, improved tube formation of HUVECs, and induced wound healing in vitro, which may have broad implications for regenerative medicine and tissue engineering.
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Fabrication of chitosan/PVP/dihydroquercetin nanocomposite film for in vitro and in vivo evaluation of wound healing. Int J Biol Macromol 2022; 206:591-604. [PMID: 35217084 DOI: 10.1016/j.ijbiomac.2022.02.110] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 02/06/2022] [Accepted: 02/17/2022] [Indexed: 02/06/2023]
Abstract
The high cost of wound healing treatment, the slow recovery of wounds, and the uncertainty of being affected by the body's physiological activities constitute a serious burden on public health. In this work, we report the preparation and characterization of chitosan (CS), PVP, and dihydroquercetin (DHQ) nanofiber film used as wound excipients, as well as in vivo and in vitro evaluations, and verify that the film is effective in wounds. The results show that the prepared film has good morphology, thermal stability and hydrophilicity. In vitro studies have shown that it has antibacterial activity against S.aureus and E.coli, and the DPPH free radical scavenging rate proves that the fiber film has antioxidant activity. MTT cytotoxicity test proved that the film is non-toxic to Hacat cells. Animal experiments have proved that wounds treated with CS-PVP-DHQ nanofiber film heal faster. This article also studied the composite nanofiber film by inducing autophagy pathway and increasing the expression of pan-keratin, vascular endothelial growth factor VEGF and CD31 to promote wound healing. Therefore, the nanofiber film herein show great potential in wound healing applications.
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Flejszar M, Chmielarz P, Gießl M, Wolski K, Smenda J, Zapotoczny S, Cölfen H. A new opportunity for the preparation of PEEK-based bone implant materials: From SARA ATRP to photo-ATRP. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124587] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Fabrication, swelling behavior, and water absorption kinetics of genipin‐crosslinked gelatin–chitosan hydrogels. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25821] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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23
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3D Printing and Bioprinting to Model Bone Cancer: The Role of Materials and Nanoscale Cues in Directing Cell Behavior. Cancers (Basel) 2021; 13:cancers13164065. [PMID: 34439218 PMCID: PMC8391202 DOI: 10.3390/cancers13164065] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 12/12/2022] Open
Abstract
Bone cancer, both primary and metastatic, is characterized by a low survival rate. Currently, available models lack in mimicking the complexity of bone, of cancer, and of their microenvironment, leading to poor predictivity. Three-dimensional technologies can help address this need, by developing predictive models that can recapitulate the conditions for cancer development and progression. Among the existing tools to obtain suitable 3D models of bone cancer, 3D printing and bioprinting appear very promising, as they enable combining cells, biomolecules, and biomaterials into organized and complex structures that can reproduce the main characteristic of bone. The challenge is to recapitulate a bone-like microenvironment for analysis of stromal-cancer cell interactions and biological mechanics leading to tumor progression. In this review, existing approaches to obtain in vitro 3D-printed and -bioprinted bone models are discussed, with a focus on the role of biomaterials selection in determining the behavior of the models and its degree of customization. To obtain a reliable 3D bone model, the evaluation of different polymeric matrices and the inclusion of ceramic fillers is of paramount importance, as they help reproduce the behavior of both normal and cancer cells in the bone microenvironment. Open challenges and future perspectives are discussed to solve existing shortcomings and to pave the way for potential development strategies.
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Effect of Washing Treatment on the Textural Properties and Bioactivity of Silica/Chitosan/TCP Xerogels for Bone Regeneration. Int J Mol Sci 2021; 22:ijms22158321. [PMID: 34361087 PMCID: PMC8347756 DOI: 10.3390/ijms22158321] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/21/2021] [Accepted: 07/29/2021] [Indexed: 01/17/2023] Open
Abstract
Silica/biopolymer hydrogel-based materials constitute very attractive platforms for various emerging biomedical applications, particularly for bone repair. The incorporation of calcium phosphates in the hybrid network allows for designing implants with interesting biological properties. Here, we introduce a synthesis procedure for obtaining silica–chitosan (CS)–tricalcium phosphate (TCP) xerogels, with CS nominal content varying from 4 to 40 wt.% and 10 to 20 wt.% TCP. Samples were obtained using the sol-gel process assisted with ultrasound probe, and the influence of ethanol or water as washing solvents on surface area, micro- and mesopore volume, and average pore size were examined in order to optimize their textural properties. Three washing solutions with different soaking conditions were tested: 1 or 7 days in absolute ethanol and 30 days in distilled water, resulting in E1, E7, and W30 washing series, respectively. Soaked samples were eventually dried by evaporative drying at air ambient pressure, and the formation of interpenetrated hybrid structures was suggested by Fourier transformed infrared (FTIR) spectroscopy. In addition the impact that both washing solvent and TCP content have on the biodegradation, in vitro bioactivity and osteoconduction of xerogels were explored. It was found that calcium and phosphate-containing ethanol-washed xerogels presented in vitro release of calcium (2–12 mg/L) and silicon ions (~60–75 mg/L) after one week of soaking in phosphate-buffered saline (PBS), as revealed by inductive coupled plasma (ICP) spectroscopy analysis. However, only the release of silicon was detected for water-washed samples. Besides, all the samples exhibited in vitro bioactivity in simulated body fluid (SBF), as well as enhanced in vitro cell growth and also significant focal adhesion development and maturation.
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Xu D, Cheng G, Dai J, Li Z. Bi-layered Composite Scaffold for Repair of the Osteochondral Defects. Adv Wound Care (New Rochelle) 2021; 10:401-414. [PMID: 33076773 DOI: 10.1089/wound.2019.1140] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective: Osteochondral defect presents a big challenge for clinical treatment. This study aimed at constructing a bi-layered composite chitosan/chitosan-β-tricalcium phosphate (CS/CS-β-TCP) scaffold and at repairing the rat osteochondral defect. Approach: The bi-layered CS/CS-β-TCP scaffold was fabricated by lyophilization, and its microstructure was observed by a scanning electron microscope. Chondrocytes and bone marrow stem cells (BMSCs) were seeded into the CS layer and the CS-β-TCP layer, respectively. Viability and proliferation ability of the cells were observed under a confocal microscope. After subcutaneous implantation, the chondrogenic ability of the CS layer and osteogenic ability of the CS-β-TCP layer were evaluated by immunofluorescence. Then, the bi-layered scaffolds were implanted into the rat osteochondral defects and the harvested samples were macroscopically and histologically evaluated. Results: The bi-layered CS/CS-β-TCP scaffold exhibited the distinctive microstructures for each layer. The seeded chondrocytes in the CS layer could maintain the chondrogenic lineage, whereas BMSCs in the CS-β-TCP layer could continually differentiate into the osteogenic lineage. Moreover, cells in both layers could maintain well viability and excellent proliferation ability. For the in vivo study, the newly formed tissues in the bi-layered scaffolds group were similar with the native osteochondral tissues, which comprised hyaline-like cartilage and subchondral bone, with better repair effects compared with those of the pure CS group and the blank control group. Innovation: This is the first time that the bi-layered composite CS/CS-β-TCP scaffold has been fabricated and evaluated with respect to osteochondral defect repair. Conclusion: The bi-layered CS/CS-β-TCP scaffolds could facilitate osteochondral defect repair and might be the promising candidates for osteochondral tissue engineering.
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Affiliation(s)
- Dongdong Xu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and the Key Laboratory of Oral Biomedicine Ministry of Education, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
- The Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Gu Cheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and the Key Laboratory of Oral Biomedicine Ministry of Education, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Jinhong Dai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and the Key Laboratory of Oral Biomedicine Ministry of Education, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
- The Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Zhi Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and the Key Laboratory of Oral Biomedicine Ministry of Education, and Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
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Jia L, Zhang P, Ci Z, Zhang W, Liu Y, Jiang H, Zhou G. Immune-Inflammatory Responses of an Acellular Cartilage Matrix Biomimetic Scaffold in a Xenotransplantation Goat Model for Cartilage Tissue Engineering. Front Bioeng Biotechnol 2021; 9:667161. [PMID: 34150731 PMCID: PMC8208476 DOI: 10.3389/fbioe.2021.667161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/11/2021] [Indexed: 11/25/2022] Open
Abstract
The rapid development of tissue engineering and regenerative medicine has introduced a new strategy for ear reconstruction, successfully regenerating human-ear-shaped cartilage and achieving the first clinical breakthrough using a polyglycolic acid/polylactic acid (PGA/PLA) scaffold. However, its clinical repair varies greatly among individuals, and the quality of regenerated cartilage is unstable, which seriously limits further clinical application. Acellular cartilage matrix (ACM), with a cartilage-specific microenvironment, good biocompatibility, and potential to promote cell proliferation, has been used to regenerate homogeneous ear-shaped cartilage in immunocompromised nude mice. However, there is no evidence on whether ACM will regenerate homogeneous cartilage tissue in large animals or has the potential for clinical transformation. In this study, xenogeneic ACM assisted with gelatin (GT) with or without autologous chondrocytes was implanted subcutaneously into goats to establish a xenotransplantation model and compared with a PGA/PLA scaffold to evaluate the immune-inflammatory response and quality of regenerated cartilage. The results confirmed the superiority of the ACM/GT, which has the potential capacity to promote cell proliferation and cartilage formation. Although there is a slight immune-inflammatory response in large animals, it does not affect the quality of the regenerated cartilage and forms homogeneous and mature cartilage. The current study provides detailed insights into the immune-inflammatory response of the xenogeneic ACM/GT and also provides scientific evidence for future clinical application of ACM/GT in cartilage tissue engineering.
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Affiliation(s)
- Litao Jia
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, China.,Research Center of Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peiling Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China
| | - Zheng Ci
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, China.,National Tissue Engineering Center of China, Shanghai, China
| | - Wei Zhang
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, China.,Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Liu
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, China.,National Tissue Engineering Center of China, Shanghai, China
| | - Haiyue Jiang
- Research Center of Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guangdong Zhou
- Research Institute of Plastic Surgery, Weifang Medical University, Weifang, China.,Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China
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Demeyer S, Athipornchai A, Pabunrueang P, Trakulsujaritchok T. Development of mangiferin loaded chitosan-silica hybrid scaffolds: Physicochemical and bioactivity characterization. Carbohydr Polym 2021; 261:117905. [PMID: 33766383 DOI: 10.1016/j.carbpol.2021.117905] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/12/2021] [Accepted: 03/03/2021] [Indexed: 11/25/2022]
Abstract
Development of hybrid materials with molecular structure of organic-inorganic co-network is a promising method to enhance the stability and mechanical properties of biopolymers. Chitosan-silica hybrid nanocomposite scaffolds loaded with mangiferin, a plant-derived active compound possessing several bioactivities, were fabricated using the sol-gel synthesis and the freeze-drying processes. Investigation on the physicochemical and mechanical properties of the fabricated scaffolds showed that their properties can be improved and tailored by the formation of 3-dimensional crosslinked network and the addition of ZnO nanoparticles. The scaffolds possessed porosity, fluid uptake, morphology, thermal properties and mechanical strength suitable for bone tissue engineering application. Investigation on the biomineralization and cell viability indicated that the inclusion of bioactive mangiferin further promote potential use of the hybrid nanocomposite scaffolds in guided bone regeneration application.
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Affiliation(s)
- Salita Demeyer
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand.
| | - Anan Athipornchai
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand.
| | - Pariya Pabunrueang
- Department of Microbiology, Faculty of Science, Burapha University, Chonburi, 20131, Thailand.
| | - Thanida Trakulsujaritchok
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand.
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Two-step strategy for constructing hierarchical pore structured chitosan–hydroxyapatite composite scaffolds for bone tissue engineering. Carbohydr Polym 2021; 260:117765. [DOI: 10.1016/j.carbpol.2021.117765] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 12/04/2020] [Accepted: 02/02/2021] [Indexed: 12/19/2022]
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Development and Characterization of Cellulose/Iron Acetate Nanofibers for Bone Tissue Engineering Applications. Polymers (Basel) 2021; 13:polym13081339. [PMID: 33923866 PMCID: PMC8072972 DOI: 10.3390/polym13081339] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/11/2021] [Accepted: 04/14/2021] [Indexed: 12/31/2022] Open
Abstract
In tissue engineering, design of biomaterial with a micro/nano structure is an essential step to mimic extracellular matrix (ECM) and to enhance biomineralization as well as cell biocompatibility. Composite polymeric nanofiber with iron particles/ions has an important role in biomineralization and collagen synthesis for bone tissue engineering. Herein, we report development of polymeric cellulose acetate (CA) nanofibers (17 wt.%) and traces of iron acetates salt (0.5 wt.%) within a polymeric solution to form electrospinning nanofibers mats with iron nanoparticles for bone tissue engineering applications. The resulting mats were characterized using field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM), Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The resulted morphology indicated that the average diameter of CA decreased after addition of iron from (395 ± 30) to (266 ± 19) nm and had dense fiber distributions that match those of native ECM. Moreover, addition of iron acetate to CA solution resulted in mats that are thermally stable. The initial decomposition temperature was 300 °C of CA/Fe mat > 270 °C of pure CA. Furthermore, a superior apatite formation resulted in a biomineralization test after 3 days of immersion in stimulated environmental condition. In vitro cell culture experiments demonstrated that the CA/Fe mat was biocompatible to human fetal-osteoblast cells (hFOB) with the ability to support the cell attachment and proliferation. These findings suggest that doping traces of iron acetate has a promising role in composite mats designed for bone tissue engineering as simple and economically nanoscale materials. Furthermore, these biomaterials can be used in a potential future application such as drug delivery, cancer treatment, and antibacterial materials.
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Study on Gelatin/Hydroxyapatite/Chitosan Material Modified with Osteoblast for Bone Bioengineering. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-021-05577-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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31
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Guastaferro M, Reverchon E, Baldino L. Polysaccharide-Based Aerogel Production for Biomedical Applications: A Comparative Review. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1631. [PMID: 33810582 PMCID: PMC8037187 DOI: 10.3390/ma14071631] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 12/11/2022]
Abstract
A comparative analysis concerning bio-based gels production, to be used for tissue regeneration, has been performed in this review. These gels are generally applied as scaffolds in the biomedical field, thanks to their morphology, low cytotoxicity, and high biocompatibility. Focusing on the time interval 2015-2020, the production of 3D scaffolds of alginate, chitosan and agarose, for skin and bone regeneration, has mainly been investigated. Traditional techniques are critically reviewed to understand their limitations and how supercritical CO2-assisted processes could overcome these drawbacks. In particular, even if freeze-drying represents the most widespread drying technique used to produce polysaccharide-based cryogels, supercritical CO2-assisted drying effectively allows preservation of the nanoporous aerogel structure and removes the organic solvent used for gel preparation. These characteristics are essential for cell adhesion and proliferation.
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Affiliation(s)
| | | | - Lucia Baldino
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy; (M.G.); (E.R.)
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Gu J, Zhang Q, Geng M, Wang W, Yang J, Khan AUR, Du H, Sha Z, Zhou X, He C. Construction of nanofibrous scaffolds with interconnected perfusable microchannel networks for engineering of vascularized bone tissue. Bioact Mater 2021; 6:3254-3268. [PMID: 33778203 PMCID: PMC7970223 DOI: 10.1016/j.bioactmat.2021.02.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/17/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023] Open
Abstract
Vascularization and bone regeneration are two closely related processes during bone reconstruction. A three-dimensional (3D) scaffold with porous architecture provides a suitable microenvironment for vascular growth and bone formation. Here, we present a simple and general strategy to construct a nanofibrous poly(l-lactide)/poly(ε-caprolactone) (PLLA/PCL) scaffold with interconnected perfusable microchannel networks (IPMs) based on 3D printing technology by combining the phase separation and sacrificial template methods. The regular and customizable microchannel patterns within the scaffolds (spacings: 0.4 mm, 0.5 mm, and 0.6 mm; diameters: 0.8 mm, 1 mm, and 1.2 mm) were made to investigate the effect of microchannel structure on angiogenesis and osteogenesis. The results of subcutaneous embedding experiment showed that 0.5/0.8-IPMs (spacing/diameter = 0.5/0.8) and 0.5/1-IPMs (spacing/diameter = 0.5/1) scaffolds exhibited more vascular network formation as compared with other counterparts. After loading with vascular endothelial growth factor (VEGF), VEGF@IPMs-0.5/0.8 scaffold prompted better human umbilical vein endothelial cells (HUVECs) migration and neo-blood vessel formation, as determined by Transwell migration, scratch wound healing, and chorioallantoic membrane (CAM) assays. Furthermore, the microangiography and rat cranial bone defects experiments demonstrated that VEGF@IPMs-0.5/0.8 scaffold exhibited better performance in vascular network formation and new bone formation compared to VEGF@IPMs-0.5/1 scaffold. In summary, our results suggested that the microchannel structure within the scaffolds could be tailored by an adjustable caramel-based template strategy, and the combination of interconnected perfusion microchannel networks and angiogenic factors could significantly enhance vascularization and bone regeneration. 3D-printed sacrificial templates are used to construct the scaffold with interconnected perfusable microchannel networks. The microchannel structure within scaffolds can be tailored by changing the template specifications. The introduction of VEGF in the microchannel of scaffold promotes the vascular network formation. Microchannel structure and angiogenic factor within scaffold significantly enhance vascularization and bone regeneration.
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Affiliation(s)
- Jiani Gu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Qianqian Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Mengru Geng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Weizhong Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Jin Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Atta Ur Rehman Khan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Haibo Du
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Zhou Sha
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Xiaojun Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Chuanglong He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
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Geng M, Zhang Q, Gu J, Yang J, Du H, Jia Y, Zhou X, He C. Construction of a nanofiber network within 3D printed scaffolds for vascularized bone regeneration. Biomater Sci 2021; 9:2631-2646. [DOI: 10.1039/d0bm02058c] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
3D printed scaffolds with micro and nano architectures that facilitate cell growth and migration were prepared, and the scaffolds allowed deferoxamine release to accelerate bone formation.
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Affiliation(s)
- Mengru Geng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Qianqian Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Jiani Gu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Jin Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Haibo Du
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Yating Jia
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Xiaojun Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Chuanglong He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
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34
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Chitosan Composite Biomaterials for Bone Tissue Engineering—a Review. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-020-00187-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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35
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Fabrication of graphene/gelatin/chitosan/tricalcium phosphate 3D printed scaffolds for bone tissue regeneration applications. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01615-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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A Review on Chitosan's Uses as Biomaterial: Tissue Engineering, Drug Delivery Systems and Cancer Treatment. MATERIALS 2020; 13:ma13214995. [PMID: 33171898 PMCID: PMC7664280 DOI: 10.3390/ma13214995] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/24/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022]
Abstract
Chitosan, derived from chitin, is a biopolymer consisting of arbitrarily distributed β-(1-4)-linked D-glucosamine and N-acetyl-D-glucosamine that exhibits outstanding properties— biocompatibility, biodegradability, non-toxicity, antibacterial activity, the capacity to form films, and chelating of metal ions. Most of these peculiar properties are attributed to the presence of free protonable amino groups along the chitosan backbone, which also gives it solubility in acidic conditions. Moreover, this biopolymer can also be physically modified, thereby presenting a variety of forms to be developed. Consequently, this polysaccharide is used in various fields, such as tissue engineering, drug delivery systems, and cancer treatment. In this sense, this review aims to gather the state-of-the-art concerning this polysaccharide when used as a biomaterial, providing information about its characteristics, chemical modifications, and applications. We present the most relevant and new information about this polysaccharide-based biomaterial’s applications in distinct fields and also the ability of chitosan and its various derivatives to selectively permeate through the cancer cell membranes and exhibit anticancer activity, and the possibility of adding several therapeutic metal ions as a strategy to improve the therapeutic potential of this polymer.
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Wang J, Cheng Y, Wang H, Wang Y, Zhang K, Fan C, Wang H, Mo X. Biomimetic and hierarchical nerve conduits from multifunctional nanofibers for guided peripheral nerve regeneration. Acta Biomater 2020; 117:180-191. [PMID: 33007489 DOI: 10.1016/j.actbio.2020.09.037] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022]
Abstract
Development of a functional nerve conduit to replace autografts remains a significant challenge particularly considering the compositional complexity and structural hierarchy of native peripheral nerves. In the present study, a multiscale strategy was adopted to fabricate 3D biomimetic nerve conduit from Antheraea pernyi silk fibroin (ApF)/(Poly(L-lactic acid-co-caprolactone)) (PLCL)/graphene oxide (GO) (ApF/PLCL/GO) nanofibers via nanofiber dispersion, template-molding, freeze-drying and crosslinking. The resultant conduits exhibit parallel multichannels (ϕ = 125 µm) surrounded by biomimetic fibrous fragments with tailored degradation rate and improved mechanical properties in comparison with the scaffold without GO. In vitro studies showed that such 3D biomimetic nerve scaffolds had the ability to offer an effective guiding interface for neuronal cell growth. Furthermore, these conduits showed a similarity to autografts in vivo repairing sciatic nerve defects based on a series of analysis (walking track, triceps weight, morphogenesis, vascularization, axonal regrowth and myelination). The conduits almost completely degraded within 12 weeks. These findings demonstrate that the 3D hierarchical nerve guidance conduit (NGC) with fascicle-like structure have great potential for peripheral nerve repair.
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Su X, Chen L, Han S, Niu G, Ren J, Ke C. Preparation and Characterization of a Novel Triple Composite Scaffold Containing Silk Fiborin, Chitosan, and Alginate for 3D Culture of Colonic Carcinoma Cells In Vitro. Med Sci Monit 2020; 26:e922935. [PMID: 32773734 PMCID: PMC7439765 DOI: 10.12659/msm.922935] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Three-dimensional (3D) cell-culture scaffolds are ideal in vitro models to bridge the gap between two-dimensional cell culture in vitro and in vivo cancer models. Construction of 3D scaffolds using two kinds of biomaterials has been reported, but there are still many defects. To improve the performance of the scaffolds for 3D cell culture of colonic carcinoma (CC) cells in vitro, we attempted to construct triple composite scaffolds using silk fibroin (SF), chitosan (Cs), and alginate (Alg). MATERIAL AND METHODS We explored the suitability of triple composite scaffolds of SF/Cs/Alg at ratios of 1: 1: 0.5, 1: 1: 1, and 1: 1: 2 for 3D culture of CC cells, and used the dual composite scaffold of SF/Cs (1: 1) as a control group. We analyzed the physicochemical characteristics of these scaffolds and studied cell adhesion, cell proliferation, migration, colony-forming ability, microstructure and ultrastructure, and spheroid-forming capacity of the commercially available CC cell line HCT-116 on the prepared scaffolds. RESULTS Our results show that SF/Cs/Alg (1: 1: 1) scaffolds demonstrated the best profile, the highest uniform porosity and connectivity, and excellent hydroscopicity, and also exhibited appropriate and controlled swelling and degradation characteristics. The adhesion, proliferation, colony-forming, and wound-healing assays, green fluorescent protein-labeled HCT116 cell imaging, 4',6-diamidino-2-phenylindole and DY-554-phalloidin staining, scanning electron microscopy, and haematoxylin and eosin staining revealed that the triple composite scaffolds of SF/CS/Alg (1: 1: 1) supported cell adhesion, proliferation, migration, colony-forming ability, and spheroid formation far better than the dual composite scaffold of SF/CS (1: 1). CONCLUSIONS This study successfully demonstrated the potential of SF/Cs/Alg (1: 1: 1) scaffold as an alternative for the 3D in vitro culture of CC cells.
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Affiliation(s)
- Xianhao Su
- Department of General Surgery, Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China (mainland)
| | - Liang Chen
- Department of General Surgery, Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China (mainland)
| | - Shanliang Han
- Department of General Surgery, Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China (mainland)
| | - Gengming Niu
- Department of General Surgery, Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China (mainland)
| | - Jun Ren
- Department of General Surgery, Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China (mainland)
| | - Chongwei Ke
- Department of General Surgery, Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China (mainland)
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Role of biomechanics in vascularization of tissue-engineered bones. J Biomech 2020; 110:109920. [PMID: 32827778 DOI: 10.1016/j.jbiomech.2020.109920] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/26/2020] [Accepted: 06/26/2020] [Indexed: 12/23/2022]
Abstract
Biomaterial based reconstruction is still the most commonly employed method of small bone defect reconstruction. Bone tissue-engineered techniques are improving, and adjuncts such as vascularization technologies allow re-evaluation of traditional reconstructive methods for healingofcritical-sized bone defect. Slow infiltration rate of vasculogenesis after cell-seeded scaffold implantation limits the use of clinically relevant large-sized scaffolds. Hence, in vitro vascularization within the tissue-engineered bone before implantation is required to overcome the serious challenge of low cell survival rate after implantation which affects bone tissue regeneration and osseointegration. Mechanobiological interactions between cells and microvascular mechanics regulate biological processes regarding cell behavior. In addition, load-bearing scaffolds demand mechanical stability properties after vascularization to have adequate strength while implanted. With the advent of bioreactors, vascularization has been greatly improved by biomechanical regulation of stem cell differentiation through fluid-induced shear stress and synergizing osteogenic and angiogenic differentiation in multispecies coculture cells. The benefits of vascularization are clear: avoidance of mass transfer limitation and oxygen deprivation, a significant decrease in cell necrosis, and consequently bone development, regeneration and remodeling. Here, we discuss specific techniques to avoid pitfalls and optimize vascularization results of tissue-engineered bone. Cell source, scaffold modifications and bioreactor design, and technique specifics all play a critical role in this new, and rapidly growing method for bone defect reconstruction. Given the crucial importance of long-term survival of vascular network in physiological function of 3D engineered-bone constructs, greater knowledge of vascularization approaches may lead to the development of new strategies towards stabilization of formed vascular structure.
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Campodoni E, Montanari M, Dozio SM, Heggset EB, Panseri S, Montesi M, Tampieri A, Syverud K, Sandri M. Blending Gelatin and Cellulose Nanofibrils: Biocomposites with Tunable Degradability and Mechanical Behavior. NANOMATERIALS 2020; 10:nano10061219. [PMID: 32580479 PMCID: PMC7353106 DOI: 10.3390/nano10061219] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/15/2020] [Accepted: 06/18/2020] [Indexed: 02/07/2023]
Abstract
Many studies show how biomaterial properties like stiffness, mechanical stimulation and surface topography can influence cellular functions and direct stem cell differentiation. In this work, two different natural materials, gelatin (Gel) and cellulose nanofibrils (CNFs), were combined to design suitable 3D porous biocomposites for soft-tissue engineering. Gel was selected for its well-assessed high biomimicry that it shares with collagen, from which it derives, while the CNFs were chosen as structural reinforcement because of their exceptional mechanical properties and biocompatibility. Three different compositions of Gel and CNFs, i.e., with weight ratios of 75:25, 50:50 and 25:75, were studied. The biocomposites were morphologically characterized and their total- and macro- porosity assessed, proving their suitability for cell colonization. In general, the pores were larger and more isotropic in the biocomposites compared to the pure materials. The influence of freeze-casting and dehydrothermal treatment (DHT) on mechanical properties, the absorption ability and the shape retention were evaluated. Higher content of CNFs gave higher swelling, and this was attributed to the pore structure. Cross-linking between CNFs and Gel using DHT was confirmed. The Young’s modulus increased significantly by adding the CNFs to Gel with a linear relationship with respect to the CNF amounts. Finally, the biocomposites were characterized in vitro by testing cell colonization and growth through a quantitative cell viability analysis performed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Additionally, the cell viability analysis was performed by the means of a Live/Dead test with Human mesenchymal stem cells (hMSCs). All the biocomposites had higher cytocompatibility compared to the pure materials, Gel and CNFs.
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Affiliation(s)
- Elisabetta Campodoni
- Institute of Science and Technology for Ceramics-National Research Council (CNR), 48018 Faenza, Italy; (M.M.); (S.M.D.); (S.P.); (M.M.); (A.T.)
- Correspondence: (E.C.); (K.S.); (M.S.); Tel.: +39-0546-699761 (E.C.); +47-95903740 (K.S.); +39-0546-699761 (M.S.)
| | - Margherita Montanari
- Institute of Science and Technology for Ceramics-National Research Council (CNR), 48018 Faenza, Italy; (M.M.); (S.M.D.); (S.P.); (M.M.); (A.T.)
| | - Samuele M. Dozio
- Institute of Science and Technology for Ceramics-National Research Council (CNR), 48018 Faenza, Italy; (M.M.); (S.M.D.); (S.P.); (M.M.); (A.T.)
| | | | - Silvia Panseri
- Institute of Science and Technology for Ceramics-National Research Council (CNR), 48018 Faenza, Italy; (M.M.); (S.M.D.); (S.P.); (M.M.); (A.T.)
| | - Monica Montesi
- Institute of Science and Technology for Ceramics-National Research Council (CNR), 48018 Faenza, Italy; (M.M.); (S.M.D.); (S.P.); (M.M.); (A.T.)
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics-National Research Council (CNR), 48018 Faenza, Italy; (M.M.); (S.M.D.); (S.P.); (M.M.); (A.T.)
| | - Kristin Syverud
- RISE PFI, NO-7491 Trondheim, Norway;
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
- Correspondence: (E.C.); (K.S.); (M.S.); Tel.: +39-0546-699761 (E.C.); +47-95903740 (K.S.); +39-0546-699761 (M.S.)
| | - Monica Sandri
- Institute of Science and Technology for Ceramics-National Research Council (CNR), 48018 Faenza, Italy; (M.M.); (S.M.D.); (S.P.); (M.M.); (A.T.)
- Correspondence: (E.C.); (K.S.); (M.S.); Tel.: +39-0546-699761 (E.C.); +47-95903740 (K.S.); +39-0546-699761 (M.S.)
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Neacsu IA, Serban AP, Nicoara AI, Trusca R, Ene VL, Iordache F. Biomimetic Composite Scaffold Based on Naturally Derived Biomaterials. Polymers (Basel) 2020; 12:E1161. [PMID: 32438578 PMCID: PMC7284724 DOI: 10.3390/polym12051161] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 01/10/2023] Open
Abstract
This paper proposes the development of a biomimetic composite based on naturally derived biomaterials. This freeze-dried scaffold contains a microwave-synthesized form of biomimetic hydroxyapatite (HAp), using the interwoven hierarchical structure of eggshell membrane (ESM) as bio-template. The bone regeneration capacity of the scaffold is enhanced with the help of added tricalcium phosphate from bovine Bone ash (BA). With the addition of Gelatin (Gel) and Chitosan (CS) as organic matrix, the obtained composite is characterized by the ability to stimulate the cellular response and might accelerate the bone healing process. Structural characterization of the synthesized HAp (ESM) confirms the presence of both hydroxyapatite and monetite phases, in accordance with the spectroscopy results on the ESM before and after the microwave thermal treatment (the presence of phosphate group). Morphology studies on all individual components and final scaffold, highlight their morphology and porous structure, characteristics that influence the biocompatibility of the scaffold. Porosity, swelling rate and the in vitro cytotoxicity assays performed on amniotic fluid stem cells (AFSC), demonstrate the effective biocompatibility of the obtained materials. The experimental results presented in this paper highlight an original biocomposite scaffold obtained from naturally derived materials, in a nontoxic manner.
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Affiliation(s)
- Ionela Andreea Neacsu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (I.A.N.); (A.I.N.); (V.L.E.)
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Adriana Petruta Serban
- Department of Chemical Thermodynamics, “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 060021 Bucharest, Romania
| | - Adrian Ionut Nicoara
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (I.A.N.); (A.I.N.); (V.L.E.)
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Roxana Trusca
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Vladimir Lucian Ene
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (I.A.N.); (A.I.N.); (V.L.E.)
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Florin Iordache
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Agronomic Science and Veterinary Medicine, 011464 Bucharest, Romania;
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Diloksumpan P, Bolaños RV, Cokelaere S, Pouran B, de Grauw J, van Rijen M, van Weeren R, Levato R, Malda J. Orthotopic Bone Regeneration within 3D Printed Bioceramic Scaffolds with Region-Dependent Porosity Gradients in an Equine Model. Adv Healthc Mater 2020; 9:e1901807. [PMID: 32324336 PMCID: PMC7116206 DOI: 10.1002/adhm.201901807] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/03/2020] [Indexed: 01/07/2023]
Abstract
The clinical translation of three-dimensionally printed bioceramic scaffolds with tailored architectures holds great promise toward the regeneration of bone to heal critical-size defects. Herein, the long-term in vivo performance of printed hydrogel-ceramic composites made of methacrylated-oligocaprolactone-poloxamer and low-temperature self-setting calcium-phosphates is assessed in a large animal model. Scaffolds printed with different internal architectures, displaying either a designed porosity gradient or a constant pore distribution, are implanted in equine tuber coxae critical size defects. Bone ingrowth is challenged and facilitated only from one direction via encasing the bioceramic in a polycaprolactone shell. After 7 months, total new bone volume and scaffold degradation are significantly greater in structures with constant porosity. Interestingly, gradient scaffolds show lower extent of remodeling and regeneration even in areas having the same porosity as the constant scaffolds. Low regeneration in distal regions from the interface with native bone impairs ossification in proximal regions of the construct, suggesting that anisotropic architectures modulate the cross-talk between distant cells within critical-size defects. The study provides key information on how engineered architectural patterns impact osteoregeneration in vivo, and also indicates the equine tuber coxae as promising orthotopic model for studying materials stimulating bone formation.
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Affiliation(s)
- Paweena Diloksumpan
- Department of Clinical Sciences, Faculty of Veterinary Medicine,
Utrecht University, Yalelaan 1, Utrecht 3584 CL, The Netherlands
| | - Rafael Vindas Bolaños
- Escuela de Medicina Veterinaria, Universidad Nacional Costa Rica
Barreal de Heredia Heredia, Lagunilla 86-3000, Costa Rica
| | - Stefan Cokelaere
- Department of Clinical Sciences, Faculty of Veterinary Medicine,
Utrecht University, Yalelaan 1, Utrecht 3584 CL, The Netherlands
| | - Behdad Pouran
- Department of Orthopaedics and Regenerative Medicine Center,
University Medical Center Utrecht, Utrecht University, Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
| | - Janny de Grauw
- Department of Clinical Sciences, Faculty of Veterinary Medicine,
Utrecht University, Yalelaan 1, Utrecht 3584 CL, The Netherlands
| | - Mattie van Rijen
- Department of Orthopaedics and Regenerative Medicine Center,
University Medical Center Utrecht, Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
| | - René van Weeren
- Department of Clinical Sciences, Faculty of Veterinary Medicine,
Utrecht University, Yalelaan 1, Utrecht 3584 CL, The Netherlands
| | - Riccardo Levato
- Department of Clinical Sciences, Faculty of Veterinary Medicine,
Utrecht University, Yalelaan 1, Utrecht 3584 CL, The Netherlands; Department
of Orthopaedics and Regenerative Medicine Center, University Medical Center
Utrecht, Utrecht University, Heidelberglaan 100, Utrecht 3584 CX, The
Netherlands
| | - Jos Malda
- Department of Clinical Sciences, Faculty of Veterinary Medicine,
Utrecht University, Yalelaan 1, Utrecht 3584 CL, The Netherlands; Department
of Orthopaedics and Regenerative Medicine Center University Medical Center
Utrecht Utrecht University Heidelberglaan 100, Utrecht 3584 CX, The
Netherlands
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Fischetti T, Celikkin N, Contessi Negrini N, Farè S, Swieszkowski W. Tripolyphosphate-Crosslinked Chitosan/Gelatin Biocomposite Ink for 3D Printing of Uniaxial Scaffolds. Front Bioeng Biotechnol 2020; 8:400. [PMID: 32426350 PMCID: PMC7203422 DOI: 10.3389/fbioe.2020.00400] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/08/2020] [Indexed: 11/13/2022] Open
Abstract
Chitosan is a natural polymer widely investigated and used due to its antibacterial activity, mucoadhesive, analgesic, and hemostatic properties. Its biocompatibility makes chitosan a favorable candidate for different applications in tissue engineering (TE), such as skin, bone, and cartilage tissue regeneration. Despite promising results obtained with chitosan 3D scaffolds, significant challenges persist in fabricating hydrogel structures with ordered architectures and biological properties to mimic native tissues. In this work, chitosan has been investigated aiming at designing and fabricating uniaxial scaffolds which can be proposed for the regeneration of anisotropic tissues (i.e., skin, skeletal muscle, myocardium) by 3D printing technology. Chitosan was blended with gelatin to form a polyelectrolyte complex in two different ratios, to improve printability and shape retention. After the optimization of the printing process parameters, different crosslinking conditions were investigated, and the 3D printed samples were characterized. Tripolyphosphate (TPP) was used as crosslinker for chitosan-based scaffolds. For the optimization of the printing temperature, the sol-gel temperature of the chitosan-gelatin blend was determined by rheological measurements and extrusion temperature was set to 20°C (i.e., below sol-gel temperature). The shape fidelity and surface morphology of the 3D printed scaffolds after crosslinking was dependent on crosslinking conditions. Interestingly, mechanical properties of the scaffolds were also significantly affected by the crosslinking conditions, nonetheless the stability of the scaffolds was strongly determined by the content of gelatin in the blend. Lastly, in vitro cytocompatibility test was performed to evaluate the interactions between L929 cells and the 3D printed samples. 2% w/v chitosan and 4% w/v gelatin hydrogel scaffolds crosslinked with 10% TPP, 30 min at 4°C following 30 min at 37°C have shown cytocompatible and stable characteristics, compared to all other tested conditions, showing suitable properties for the regeneration of anisotropic tissues.
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Affiliation(s)
- Tiziana Fischetti
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland.,Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Italy
| | - Nehar Celikkin
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Nicola Contessi Negrini
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Italy.,INSTM, National Consortium of Materials Science and Technology, Local Unit Politecnico di Milano, Milan, Italy
| | - Silvia Farè
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Italy.,INSTM, National Consortium of Materials Science and Technology, Local Unit Politecnico di Milano, Milan, Italy
| | - Wojciech Swieszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
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Zhou X, Liu P, Nie W, Peng C, Li T, Qiang L, He C, Wang J. Incorporation of dexamethasone-loaded mesoporous silica nanoparticles into mineralized porous biocomposite scaffolds for improving osteogenic activity. Int J Biol Macromol 2020; 149:116-126. [DOI: 10.1016/j.ijbiomac.2020.01.237] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/20/2019] [Accepted: 01/23/2020] [Indexed: 12/24/2022]
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Koosha M, Solouk A, Ghalei S, Sadeghi D, Bagheri S, Mirzadeh H. Chitosan/gum tragacanth/PVA hybrid nanofibrous scaffold for tissue engineering applications. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2020. [DOI: 10.1680/jbibn.18.00028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this paper, preparation and characterization of a nanofibrous scaffold comprising both chitosan (CS) and gum tragacanth (GT) are reported for the first time. CS and GT were separately blended with poly(vinyl alcohol) (PVA) and simultaneously electrospun by a double-nozzle electrospinning apparatus, and the resulting nanofibrous mats were compared with CS/PVA and GT/PVA electrospun ones. Scanning electron microscopy images showed uniform bead-free nanofibers with some merging areas and an average fiber diameter of ∼273 nm for CS-PVA/GT-PVA. The ultimate tensile strength and strain at break of the hybrid nanofibers were ∼20 MPa and ∼9%, respectively, which were significantly higher than those of the CS/PVA and GT/PVA nanofibers. The CS-PVA/GT-PVA nanofibrous mats also showed a water droplet contact angle value (∼31°) between those of the CS/PVA and GT/PVA nanofibrous mats. MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay using L929 fibroblast cells indicated more biocompatibility of the CS-PVA/GT-PVA hybrid nanofibers compared with the CS/PVA and GT/PVA ones. The obtained results showed that the CS-PVA/GT-PVA hybrid nanofibrous scaffold might be useful for tissue engineering applications.
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Affiliation(s)
- Mojtaba Koosha
- Faculty of New Technologies Engineering, Shahid Beheshti University, Tehran, Iran
| | - Atefeh Solouk
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Sama Ghalei
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Davoud Sadeghi
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Shadab Bagheri
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Hamid Mirzadeh
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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Manufacture and characteristics of HA-Electrodeposited polylactic acid/polyvinyl alcohol biodegradable braided scaffolds. J Mech Behav Biomed Mater 2020; 103:103555. [PMID: 32090949 DOI: 10.1016/j.jmbbm.2019.103555] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 12/13/2022]
Abstract
This study proposes the braided bone scaffolds. First, biologically degradable polylactic acid (PLA) filaments and polyvinyl alcohol (PVA) filaments are plied into composite yarns using a doubling and twisting machine. The composite yarns are tested to determine the optimal mechanical properties and a stabilized morphology. The PLA/PVA composite yarns are then braided into bone scaffolds, during which the optimal braiding process parameters and yarn ratio are determined. Based on the surface observation and tensile strength, a gear ratio of 45:45 provides the tubular braids with an optimal morphology and porosity that meet the biological requirements. When the PLA/PVA ratio is 3:1, the braids exhibit the maximum tensile properties and the most stable space structure. Furthermore, to make the braids a bioactive material with surface active sites, the braids are coated with hydroxyapatite (HA) by electrodeposition. The resulting HA-electrodeposited bone scaffolds are tested by in vitro biological experiments using a scanning electronic microscope (SEM), energy dispersive x-ray analysis(EDAX), X-ray Diffraction(XRD), and Fourier transform infrared spectroscopy(FT-IR), thereby examining their characteristics and microstructure. Results suggest that HA is electrodeposited over the bone scaffolds successfully. The immersion in simulated body fluid (SBF) is proven to contribute a good in vitro bioactivity to bone scaffolds. As a result, bone scaffolds are a good candidate for the application in the cancellous bone repairing field.
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Iga C, Paweł S, Marcin Ł, Justyna KL. Polyurethane Composite Scaffolds Modified with the Mixture of Gelatin and Hydroxyapatite Characterized by Improved Calcium Deposition. Polymers (Basel) 2020; 12:polym12020410. [PMID: 32054055 PMCID: PMC7077717 DOI: 10.3390/polym12020410] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/01/2020] [Accepted: 02/04/2020] [Indexed: 01/08/2023] Open
Abstract
The skeleton is a crucial element of the motion system in the human body, whose main function is to support and protect the soft tissues. Furthermore, the elements of the skeleton act as a storage place for minerals and participate in the production of red blood cells. The bone tissue includes the craniomaxillofacial bones, ribs, and spine. There are abundant reports in the literature indicating that the amount of treatments related to bone fractures increases year by year. Nowadays, the regeneration of the bone tissue is performed by using autografts or allografts, but this treatment method possesses a few disadvantages. Therefore, new and promising methods of bone tissue regeneration are constantly being sought. They often include the implantation of tissue scaffolds, which exhibit proper mechanical and osteoconductive properties. In this paper, the preparation of polyurethane (PUR) scaffolds modified by gelatin as the reinforcing factor and hydroxyapatite as the bioactive agent was described. The unmodified and modified scaffolds were tested for their mechanical properties; morphological assessments using optical microscopy were also conducted, as was the ability for calcification using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Moreover, each type of scaffold was subjected to a degradation process in 5M NaOH and 2M HCl aqueous solutions. It was noticed that the best properties promoting the calcium phosphate deposition were obtained for scaffolds modified with 2% gelatin solution containing 5% of hydroxyapatite.
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Affiliation(s)
- Carayon Iga
- Department of Polymers Technology, Faculty of Chemistry, Gdansk University of Technology (GUT), Narutowicza Street 11/12, 80233 Gdansk, Poland; (C.I.); (S.P.)
| | - Szarlej Paweł
- Department of Polymers Technology, Faculty of Chemistry, Gdansk University of Technology (GUT), Narutowicza Street 11/12, 80233 Gdansk, Poland; (C.I.); (S.P.)
| | - Łapiński Marcin
- Department of Solid State Physics, Faculty of Applied Physics and Mathematics, Gdansk University of Technology (GUT), Narutowicza Street 11/12, 80233 Gdansk, Poland;
| | - Kucińska-Lipka Justyna
- Department of Polymers Technology, Faculty of Chemistry, Gdansk University of Technology (GUT), Narutowicza Street 11/12, 80233 Gdansk, Poland; (C.I.); (S.P.)
- Correspondence:
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48
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Fabrication and characterization of dextran/nanocrystalline β-tricalcium phosphate nanocomposite hydrogel scaffolds. Int J Biol Macromol 2020; 148:434-448. [PMID: 31953173 DOI: 10.1016/j.ijbiomac.2020.01.112] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 01/02/2023]
Abstract
Design of bioactive three-dimensional scaffolds to support bone tissue repair and regeneration become a key area of research in tissue engineering. Herein, porous hybrid hydrogels composed of dextran incorporated with nanocrystalline β-tricalcium phosphate (β-TCP) particles were tailor made as scaffolds for bone tissue engineering. β-TCP was successfully introduced within the dextran networks crosslinked through intermolecular ionic interactions and hydrogen bonding confirmed by FTIR spectroscopy. The effect of β-TCP content on equilibrium water uptake and swelling kinetics of composite hydrogels was investigated. It was found that the homogeneous distribution of β-TCP nanoparticles through the hydrogel matrix contributes to higher porosity and swelling capacity. In depth swelling measurements revealed that while in the early stage of swelling, water diffusion follows the Fick's law, for longer time swelling behavior of hydrogels undergo the second order kinetics. XRD measurements represented the formation of apatite layer on the surface of nanocomposite hydrogels after immersion in the SBF solution, which implies their bioactivity. Cell culture assays confirmed biocompatibility of the developed hybrid hydrogels in vitro. The obtained results converge to offer dextran/β-TCP nanocomposite hydrogels as promising scaffolds for bone regeneration applications.
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49
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Li K, Wang J, Li P, Fan Y. Ternary hydrogels with tunable mechanical and self-healing properties based on the synergistic effects of multiple dynamic bonds. J Mater Chem B 2020; 8:4660-4671. [DOI: 10.1039/c9tb02885d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ternary hydrogels with tunable mechanical properties were prepared based on the synergistic effects of hydrogen bonds and imine bonds.
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Affiliation(s)
- Kun Li
- School of Biological Science and Medical Engineering
- Beihang University
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- Beijing 100083
- China
| | - Jingxi Wang
- School of Biological Science and Medical Engineering
- Beihang University
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- Beijing 100083
- China
| | - Ping Li
- School of Biological Science and Medical Engineering
- Beihang University
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- Beijing 100083
- China
| | - Yubo Fan
- School of Biological Science and Medical Engineering
- Beihang University
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- Beijing 100083
- China
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50
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Pan C, Sun X, Xu G, Su Y, Liu D. The effects of β-TCP on mechanical properties, corrosion behavior and biocompatibility of β-TCP/Zn-Mg composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110397. [PMID: 31923980 DOI: 10.1016/j.msec.2019.110397] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/15/2019] [Accepted: 11/04/2019] [Indexed: 11/26/2022]
Abstract
Zinc has attracted increasing attention in the field of degradable implant materials due to its suitable degradation rate. To further improve the mechanical properties and biocompatibility of zinc, Zn-1Mg-nvol%β-TCP (n = 0, 1, 3, 5) composites were fabricated for biomedical application by the mechanical stirring combined with ultrasonic assisted casting and hot extrusion technology. The microstructure, mechanical properties and corrosion behavior of these composites were systemically investigated and the composite with the best comprehensive performance were selected for biocompatibility evaluation including L-929 cells cytotoxicity test and SD rat model experiment. Tensile test revealed that Zn-1Mg-1vol%β-TCP composite possessed optimal mechanical properties. The yield strength (YS), ultimate tensile strength (UTS), elongation (σ) and elastic modulus (E) of the as-extruded Zn-1Mg-1vol%β-TCP composite are 250.8 MPa, 330.5 MPa, 11.7% and 125.4 GPa respectively. The immersion tests showed that the corrosion resistance of the composite is slightly decreased with the increase of β-TCP content. In addition, the addition of β-TCP makes the cytocompatibility of the composites better than that of the Zn-1Mg alloy matrix. Various blood biochemical parameters in rat serum samples after implantation showed Zn-1Mg alloy and Zn-1Mg-β-TCP composites has not significant tissue inflammation and showed good biocompatibility.
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Affiliation(s)
- Chao Pan
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Xiaohao Sun
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Guangquan Xu
- National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Yue Su
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Debao Liu
- Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin 300384, China.
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