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Bernadi-Forteza A, Mallon M, Velasco-Gallego C, Cubo-Mateo N. A Systematic Review on the Generation of Organic Structures through Additive Manufacturing Techniques. Polymers (Basel) 2024; 16:2027. [PMID: 39065345 PMCID: PMC11280941 DOI: 10.3390/polym16142027] [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: 06/01/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
Additive manufacturing (AM) has emerged as a transformative technology in the fabrication of intricate structures, offering unparalleled adaptability in crafting complex geometries. Particularly noteworthy is its burgeoning significance within the realm of medical prosthetics, owing to its capacity to seamlessly replicate anatomical forms utilizing biocompatible materials. Notably, the fabrication of porous architectures stands as a cornerstone in orthopaedic prosthetic development and bone tissue engineering. Porous constructs crafted via AM exhibit meticulously adjustable pore dimensions, shapes, and porosity levels, thus rendering AM indispensable in their production. This systematic review ventures to furnish a comprehensive examination of extant research endeavours centred on the generation of porous scaffolds through additive manufacturing modalities. Its primary aim is to delineate variances among distinct techniques, materials, and structural typologies employed, with the overarching objective of scrutinizing the cutting-edge methodologies in engineering self-supported stochastic printable porous frameworks via AM, specifically for bone scaffold fabrication. Findings show that most of the structures analysed correspond to lattice structures. However, there is a strong tendency to use organic structures generated by mathematical models and printed using powder bed fusion techniques. However, no work has been found that proposes a self-supporting design for organic structures.
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Affiliation(s)
- Alex Bernadi-Forteza
- Research Group ARIES, Higher Polytechnic School, Nebrija University, 28040 Madrid, Spain; (C.V.-G.); (N.C.-M.)
| | - Michael Mallon
- European Space Research and Technology Centre, European Space Agency, 2201 AZ Noordwijk, The Netherlands;
| | - Christian Velasco-Gallego
- Research Group ARIES, Higher Polytechnic School, Nebrija University, 28040 Madrid, Spain; (C.V.-G.); (N.C.-M.)
| | - Nieves Cubo-Mateo
- Research Group ARIES, Higher Polytechnic School, Nebrija University, 28040 Madrid, Spain; (C.V.-G.); (N.C.-M.)
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2
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Elenskaya N, Koryagina P, Tashkinov M, Silberschmidt VV. Effect of degradation in polymer scaffolds on mechanical properties: Surface vs. bulk erosion. Comput Biol Med 2024; 174:108402. [PMID: 38613889 DOI: 10.1016/j.compbiomed.2024.108402] [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: 12/05/2023] [Revised: 03/13/2024] [Accepted: 04/01/2024] [Indexed: 04/15/2024]
Abstract
Porous polymeric scaffolds are used in tissue engineering to maintain or replace damaged biological tissues. Once embedded in body, they are involved into different physical and biological processes, among which their degradation and dissolution of their material can be singled out as one of the most important ones. Degradation parameters depend mostly on the properties of both the material and surrounding native tissues, which can substantially alter the original mechanical parameters of the scaffolds. The aim of this study is to examine the change in the effective mechanical properties of functionally graded additively manufactured polylactide scaffolds with a linear porosity gradient and morphology based on triply periodic minimal surfaces during simultaneous degradation and compressive loading. Two main types of scaffold-degradation processes, bulk and surface erosions are simulated with two suggested modelling methods. The fundamental differences in the proposed approaches are identified and the influence of different types of scaffold morphology on the change in effective elastic properties is evaluated. The results of this study can be useful for design of optimal scaffolds taking into account the effect of the degradation process on their structural integrity.
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Affiliation(s)
- Nataliya Elenskaya
- Perm National Research Polytechnic University, Komsomolsky Ave., 29, Perm, Russia
| | - Polina Koryagina
- Perm National Research Polytechnic University, Komsomolsky Ave., 29, Perm, Russia
| | - Mikhail Tashkinov
- Perm National Research Polytechnic University, Komsomolsky Ave., 29, Perm, Russia.
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3
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Tanvir MAH, Khaleque MA, Kim GH, Yoo WY, Kim YY. The Role of Bioceramics for Bone Regeneration: History, Mechanisms, and Future Perspectives. Biomimetics (Basel) 2024; 9:230. [PMID: 38667241 PMCID: PMC11048714 DOI: 10.3390/biomimetics9040230] [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: 03/15/2024] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Osteoporosis is a skeletal disorder marked by compromised bone integrity, predisposing individuals, particularly older adults and postmenopausal women, to fractures. The advent of bioceramics for bone regeneration has opened up auspicious pathways for addressing osteoporosis. Research indicates that bioceramics can help bones grow back by activating bone morphogenetic protein (BMP), mitogen-activated protein kinase (MAPK), and wingless/integrated (Wnt)/β-catenin pathways in the body when combined with stem cells, drugs, and other supports. Still, bioceramics have some problems, such as not being flexible enough and prone to breaking, as well as difficulties in growing stem cells and discovering suitable supports for different bone types. While there have been improvements in making bioceramics better for healing bones, it is important to keep looking for new ideas from different areas of medicine to make them even better. By conducting a thorough scrutiny of the pivotal role bioceramics play in facilitating bone regeneration, this review aspires to propel forward the rapidly burgeoning domain of scientific exploration. In the end, this appreciation will contribute to the development of novel bioceramics that enhance bone regrowth and offer patients with bone disorders alternative treatments.
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Affiliation(s)
| | | | | | | | - Young-Yul Kim
- Department of Orthopedic Surgery, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Daejeon 34943, Republic of Korea; (M.A.H.T.); (M.A.K.); (G.-H.K.); (W.-Y.Y.)
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Tao Y, Jia M, Shao-Qiang Y, Lai CT, Hong Q, Xin Y, Hui J, Qing-Gang C, Jian-Da X, Ni-Rong B. A novel fluffy PLGA/HA composite scaffold for bone defect repair. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2024; 35:16. [PMID: 38489121 PMCID: PMC10943150 DOI: 10.1007/s10856-024-06782-2] [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: 08/26/2023] [Accepted: 01/24/2024] [Indexed: 03/17/2024]
Abstract
Treatment of bone defects remains crucial challenge for successful bone healing, which arouses great interests in designing and fabricating ideal biomaterials. In this regard, the present study focuses on developing a novel fluffy scaffold of poly Lactide-co-glycolide (PLGA) composites with hydroxyapatite (HA) scaffold used in bone defect repair in rabbits. This fluffy PLGA/HA composite scaffold was fabricated by using multi-electro-spinning combined with biomineralization technology. In vitro analysis of human bone marrow mesenchymal stem cells (BMSCs) seeded onto fluffy PLGA/HA composite scaffold showed their ability to adhere, proliferate and cell viability. Transplant of fluffy PLGA/HA composite scaffold in a rabbit model showed a significant increase in mineralized tissue production compared to conventional and fluffy PLGA/HA composite scaffold. These findings are promising for fluffy PLGA/HA composite scaffolds used in bone defects.
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Affiliation(s)
- Yuan Tao
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Meng Jia
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Yang Shao-Qiang
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Cheng-Teng Lai
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Qian Hong
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Yu Xin
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Jiang Hui
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Cao Qing-Gang
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China
| | - Xu Jian-Da
- Department of Orthopaedics, Changzhou Traditional Chinese medical hospital, Changzhou hospital affiliated to Nanjing University of Chinese Medicine, Changzhou, China.
| | - Bao Ni-Rong
- Department of Orthopaedics, Jinling Hospital, Nanjing university, School of Medicine, Nanjing, China.
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Carnieri MV, Garcia DDF, Voltolini R, Volpato N, Mafra M, Bernardelli EA, Stimamiglio MA, Rebelatto CK, Correa A, Berti LF, Marcon BH. Cytocompatible and osteoconductive silicon oxycarbide glass scaffolds 3D printed by DLP: a potential material for bone tissue regeneration. Front Bioeng Biotechnol 2024; 11:1297327. [PMID: 38239914 PMCID: PMC10794595 DOI: 10.3389/fbioe.2023.1297327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/12/2023] [Indexed: 01/22/2024] Open
Abstract
Bone lesions affect individuals of different age groups, compromising their daily activities and potentially leading to prolonged morbidity. Over the years, new compositions and manufacturing technologies were developed to offer customized solutions to replace injured tissue and stimulate tissue regeneration. This work used digital light processing (DPL) technology for three-dimensional (3D) printing of porous structures using pre-ceramic polymer, followed by pyrolysis to obtain SiOC vitreous scaffolds. The SiOC scaffolds produced had an amorphous structure (compatible with glass) with an average porosity of 72.69% ± 0.99, an average hardness of 935.1 ± 71.0 HV, and an average maximum flexural stress of 7.8 ± 1.0 MPa, similar to cancellous bone tissue. The scaffolds were not cytotoxic and allowed adult stem cell adhesion, growth, and expansion. After treatment with osteoinductive medium, adult stem cells in the SiOC scaffolds differentiated to osteoblasts, assuming a tissue-like structure, with organization in multiple layers and production of a dense fibrous matrix rich in hydroxyapatite. The in vitro analyses supported the hypothesis that the SiOC scaffolds produced in this work were suitable for use as a bone substitute for treating critically sized lesions, with the potential to stimulate the gradual process of regeneration of the native tissue. The data obtained stimulate the continuity of studies with the SiOC scaffolds developed in this work, paving the way for evaluating safety and biological activity in vivo.
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Affiliation(s)
- Matheus Versão Carnieri
- Department of Mechanical Engineering, Postgraduate Program in Mechanical and Materials Engineering, Universidade Tecnológica Federal Do Parana, Curitiba, Brazil
| | - Daniele de Freitas Garcia
- Laboratory of Basic Biology of Stem Cells (LABCET), Carlos Chagas Institute—FIOCRUZ-PR, Curitiba, Brazil
| | - Rafael Voltolini
- Department of Mechanical Engineering, Postgraduate Program in Mechanical and Materials Engineering, Universidade Tecnológica Federal Do Parana, Curitiba, Brazil
| | - Neri Volpato
- Department of Mechanical Engineering, Postgraduate Program in Mechanical and Materials Engineering, Universidade Tecnológica Federal Do Parana, Curitiba, Brazil
| | - Marcio Mafra
- Department of Mechanical Engineering, Postgraduate Program in Mechanical and Materials Engineering, Universidade Tecnológica Federal Do Parana, Curitiba, Brazil
| | - Euclides Alexandre Bernardelli
- Department of Mechanical Engineering, Postgraduate Program in Mechanical and Materials Engineering, Universidade Tecnológica Federal Do Parana, Curitiba, Brazil
| | - Marco Augusto Stimamiglio
- Laboratory of Basic Biology of Stem Cells (LABCET), Carlos Chagas Institute—FIOCRUZ-PR, Curitiba, Brazil
| | | | - Alejandro Correa
- Laboratory of Basic Biology of Stem Cells (LABCET), Carlos Chagas Institute—FIOCRUZ-PR, Curitiba, Brazil
| | - Lucas Freitas Berti
- Department of Mechanical Engineering, Postgraduate Program in Mechanical and Materials Engineering, Universidade Tecnológica Federal Do Parana, Curitiba, Brazil
| | - Bruna Hilzendeger Marcon
- Laboratory of Basic Biology of Stem Cells (LABCET), Carlos Chagas Institute—FIOCRUZ-PR, Curitiba, Brazil
- Confocal and Eletronic Microscopy Facility (RPT07C), Carlos Chagas Institute—FIOCRUZ-PR, Curitiba, Brazil
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Zhu Z, Lin Y, Li L, Liu K, Wen W, Ding S, Liu M, Lu L, Zhou C, Luo B. 3D Printing Drug-Free Scaffold with Triple-Effect Combination Induced by Copper-Doped Layered Double Hydroxides for the Treatment of Bone Defects. ACS APPLIED MATERIALS & INTERFACES 2023; 15:58196-58211. [PMID: 38079497 DOI: 10.1021/acsami.3c13336] [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: 12/22/2023]
Abstract
Tissue-engineered poly(l-lactide) (PLLA) scaffolds have been widely used to treat bone defects; however, poor biological activities have always been key challenges for its further application. To address this issue, introducing bioactive drugs or factors is the most commonly used method, but there are often many problems such as high cost, uncontrollable and monotonous drug activity, and poor bioavailability. Here, a drug-free 3D printing PLLA scaffold with a triple-effect combination induced by surface-modified copper-doped layered double hydroxides (Cu-LDHs) is proposed. In the early stage of scaffold implantation, Cu-LDHs exert a photothermal therapy (PTT) effect to generate high temperature to effectively prevent bacterial infection. In the later stage, Cu-LDHs can further have a mild hyperthermia (MHT) effect to stimulate angiogenesis and osteogenic differentiation, demonstrating excellent vascularization and osteogenic activity. More importantly, with the degradation of Cu-LDHs, the released Cu2+ and Mg2+ provide an ion microenvironment effect and further synergize with the MHT effect to stimulate angiogenesis and osteogenic differentiation, thus more effectively promoting the healing of bone tissue. This triple-effect combined scaffold exhibits outstanding antibacterial, osteogenic, and angiogenic activities, as well as the advantages of low cost, convenient procedure, and long-term efficacy, and is expected to provide a promising strategy for clinical repair of bone defects.
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Affiliation(s)
- Zelin Zhu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Yating Lin
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Lin Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Kun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Wei Wen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Shan Ding
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Mingxian Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Lu Lu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Changren Zhou
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Binghong Luo
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
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Mushtaq Alam M, Sugail M, Kannan S. Development, Physiochemical characterization, Mechanical and Finite element analysis of 3D printed Polylactide-β-TCP/α-Al 2O 3 composite. J Mech Behav Biomed Mater 2023; 147:106161. [PMID: 37801964 DOI: 10.1016/j.jmbbm.2023.106161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/29/2023] [Accepted: 10/02/2023] [Indexed: 10/08/2023]
Abstract
Herein, material extrusion (MEX) technique is utilized to develop 3D printed models based on reinforcing β-Ca3(PO4)2/α-Al2O3 composite in polylactide (PLA) matrix. β-Ca3(PO4)2/α-Al2O3 composite has been synthesized through co-precipitation method and the phase content of β-Ca3(PO4)2 and α-Al2O3 components are respectively determined as 64 and 36 wt%. The resultant β-Ca3(PO4)2/α-Al2O3 composite mixed with PLA at various weight ratios were extruded as filaments and subsequently 3D printed into definite shapes for the physiochemical, morphological and mechanical evaluation. 3D printed bodies that comprise 5 wt % β-Ca3(PO4)2/α-Al2O3 composite yielded an increasing tensile, compressive and flexural strength in the corresponding order of ∼15, ∼15 and 22% than 3D printed pure PLA. Further, the Representative volume element (RVE) unit cells developed based on the various investigated compositions of PLA-β-Ca3(PO4)2/α-Al2O3 were subjected to mechanical evaluation through Finite element analysis (FEA) under both static and dynamic loading conditions on ASTM standard specimens. The results from experimental and FEA analysis demonstrated good uniformity that confirmed the reinforcement of 5 wt % β-Ca3(PO4)2/α-Al2O3 in PLA matrix as an optimum combination to yield better mechanical strength.
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Affiliation(s)
- M Mushtaq Alam
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605 014, India
| | - Mohamed Sugail
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605 014, India
| | - S Kannan
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605 014, India.
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Lin H, Zhang L, Zhang Q, Wang Q, Wang X, Yan G. Mechanism and application of 3D-printed degradable bioceramic scaffolds for bone repair. Biomater Sci 2023; 11:7034-7050. [PMID: 37782081 DOI: 10.1039/d3bm01214j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Bioceramics have attracted considerable attention in the field of bone repair because of their excellent osteogenic properties, degradability, and biocompatibility. To resolve issues regarding limited formability, recent studies have introduced 3D printing technology for the fabrication of bioceramic bone repair scaffolds. Nevertheless, the mechanisms by which bioceramics promote bone repair and clinical applications of 3D-printed bioceramic scaffolds remain elusive. This review provides an account of the fabrication methods of 3D-printed degradable bioceramic scaffolds. In addition, the types and characteristics of degradable bioceramics used in clinical and preclinical applications are summarized. We have also highlighted the osteogenic molecular mechanisms in biomaterials with the aim of providing a basis and support for future research on the clinical applications of degradable bioceramic scaffolds. Finally, new developments and potential applications of 3D-printed degradable bioceramic scaffolds are discussed with reference to experimental and theoretical studies.
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Affiliation(s)
- Hui Lin
- School and Hospital of Stomatology, China Medical University, Shenyang, China.
- Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
| | - Liyun Zhang
- School and Hospital of Stomatology, China Medical University, Shenyang, China.
- Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
| | - Qiyue Zhang
- School and Hospital of Stomatology, China Medical University, Shenyang, China.
- Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
| | - Qiang Wang
- School and Hospital of Stomatology, China Medical University, Shenyang, China.
- Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
| | - Xue Wang
- School and Hospital of Stomatology, China Medical University, Shenyang, China.
| | - Guangqi Yan
- School and Hospital of Stomatology, China Medical University, Shenyang, China.
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Zhou J, See CW, Sreenivasamurthy S, Zhu D. Customized Additive Manufacturing in Bone Scaffolds-The Gateway to Precise Bone Defect Treatment. RESEARCH (WASHINGTON, D.C.) 2023; 6:0239. [PMID: 37818034 PMCID: PMC10561823 DOI: 10.34133/research.0239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/07/2023] [Indexed: 10/12/2023]
Abstract
In the advancing landscape of technology and novel material development, additive manufacturing (AM) is steadily making strides within the biomedical sector. Moving away from traditional, one-size-fits-all implant solutions, the advent of AM technology allows for patient-specific scaffolds that could improve integration and enhance wound healing. These scaffolds, meticulously designed with a myriad of geometries, mechanical properties, and biological responses, are made possible through the vast selection of materials and fabrication methods at our disposal. Recognizing the importance of precision in the treatment of bone defects, which display variability from macroscopic to microscopic scales in each case, a tailored treatment strategy is required. A patient-specific AM bone scaffold perfectly addresses this necessity. This review elucidates the pivotal role that customized AM bone scaffolds play in bone defect treatment, while offering comprehensive guidelines for their customization. This includes aspects such as bone defect imaging, material selection, topography design, and fabrication methodology. Additionally, we propose a cooperative model involving the patient, clinician, and engineer, thereby underscoring the interdisciplinary approach necessary for the effective design and clinical application of these customized AM bone scaffolds. This collaboration promises to usher in a new era of bioactive medical materials, responsive to individualized needs and capable of pushing boundaries in personalized medicine beyond those set by traditional medical materials.
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Affiliation(s)
- Juncen Zhou
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Carmine Wang See
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Sai Sreenivasamurthy
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
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Dodda JM, Azar MG, Bělský P, Šlouf M, Gajdošová V, Kasi PB, Anerillas LO, Kovářík T. Bioresorbable films of polycaprolactone blended with poly(lactic acid) or poly(lactic-co-glycolic acid). Int J Biol Macromol 2023; 248:126654. [PMID: 37659482 DOI: 10.1016/j.ijbiomac.2023.126654] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/26/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
Recent complications on the use of polypropylene meshes for hernia repair has led to the development of meshes or films, which were based on resorbable polymers such as polycaprolactone (PCL), polylactic acid (PLA) and poly(lactic-co-glycolic acid) (PLGA). These materials are able to create suitable bioactive environment for the growth and development of cells. In this research, we mainly focused on the relations among structure, mechanical performance and biocompatiblity of PCL/PLA and PCL/PLGA and blends prepared by solution casting. The films were characterized regarding the chemical structure, morphology, physicochemical properties, cytotoxicity, biocompatibility and cell growth. All the films showed high tensile strength ranging from 9.5 to 11.8 MPa. SAXS showed that the lamellar stack structure typical for PCL was present even in the blend films while the morphological parameters of the stacks varied slightly with the content of PLGA or PLA in the blends. WAXS indicated preferential orientation of crystallites (and thus, also the lamellar stacks) in the blend films. In vitro studies revealed that PCL/PLGA films displayed better cell adhesion, spreading and proliferation than PCL/PLA and PCL films. Further the effect of blending on the degradation was investigated, to understand the significant variable within the process that could provide further control of cell adhesion. The results showed that the investigated blend films are promising materials for biomedical applications.
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Affiliation(s)
- Jagan Mohan Dodda
- New Technologies - Research Centre (NTC), University of West Bohemia, Univerzitní 8, 301 00 Plzeň, Czech Republic.
| | - Mina Ghafouri Azar
- New Technologies - Research Centre (NTC), University of West Bohemia, Univerzitní 8, 301 00 Plzeň, Czech Republic
| | - Petr Bělský
- New Technologies - Research Centre (NTC), University of West Bohemia, Univerzitní 8, 301 00 Plzeň, Czech Republic
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Veronika Gajdošová
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Phanindra Babu Kasi
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Karlovarská 48, 301 66 Plzeň, Czech Republic
| | | | - Tomáš Kovářík
- New Technologies - Research Centre (NTC), University of West Bohemia, Univerzitní 8, 301 00 Plzeň, Czech Republic
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11
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Niu H, Zhao P, Sun W. Biomaterials for chimeric antigen receptor T cell engineering. Acta Biomater 2023; 166:1-13. [PMID: 37137403 DOI: 10.1016/j.actbio.2023.04.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/23/2023] [Accepted: 04/27/2023] [Indexed: 05/05/2023]
Abstract
Chimeric antigen receptor T (CAR-T) cells have achieved breakthrough efficacies against hematological malignancies, but their unsatisfactory efficacies in solid tumors limit their applications. The prohibitively high prices further restrict their access to broader populations. Novel strategies are urgently needed to address these challenges, and engineering biomaterials can be one promising approach. The established process for manufacturing CAR-T cells involves multiple steps, and biomaterials can help simplify or improve several of them. In this review, we cover recent progress in engineering biomaterials for producing or stimulating CAR-T cells. We focus on the engineering of non-viral gene delivery nanoparticles for transducing CAR into T cells ex vivo/in vitro or in vivo. We also dive into the engineering of nano-/microparticles or implantable scaffolds for local delivery or stimulation of CAR-T cells. These biomaterial-based strategies can potentially change the way CAR-T cells are manufactured, significantly reducing their cost. Modulating the tumor microenvironment with the biomaterials can also considerably enhance the efficacy of CAR-T cells in solid tumors. We pay special attention to progress made in the past five years, and perspectives on future challenges and opportunities are also discussed. STATEMENT OF SIGNIFICANCE: Chimeric antigen receptor T (CAR-T) cell therapies have revolutionized the field of cancer immunotherapy with genetically engineered tumor recognition. They are also promising for treating many other diseases. However, the widespread application of CAR-T cell therapy has been hampered by the high manufacturing cost. Poor penetration of CAR-T cells into solid tissues further restricted their use. While biological strategies have been explored to improve CAR-T cell therapies, such as identifying new cancer targets or integrating smart CARs, biomaterial engineering provides alternative strategies toward better CAR-T cells. In this review, we summarize recent advances in engineering biomaterials for CAR-T cell improvement. Biomaterials ranging from nano-, micro-, and macro-scales have been developed to assist CAR-T cell manufacturing and formulation.
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Affiliation(s)
- Huanqing Niu
- Department of Biological Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA; State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Penghui Zhao
- Department of Biological Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA
| | - Wujin Sun
- Department of Biological Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA; Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061, USA; Center for Emerging, Zoonotic, and Arthropod-Born Pathogens, Virginia Tech, Blacksburg, VA 24061, USA.
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12
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Li Z, Li C, Sun W, Bai Y, Li Z, Deng Y. A Controlled Biodegradable Triboelectric Nanogenerator Based on PEGDA/Laponite Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2023; 15:12787-12796. [PMID: 36857756 DOI: 10.1021/acsami.2c22359] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Implantable and wearable transient electronics based on nanogenerators have been applied in self-powered sensing, electrical-stimulation therapy, and other fields. However, the existing devices have a poor ability to match with the shapes of human tissues, and the degradation processes cannot meet individual needs. In this work, a PEGDA/Lap nanocomposite hydrogel was prepared that was based on biocompatible polyglycol diacrylate (PEGDA) and laponite, and a biodegradable single-electrode triboelectric nanogenerator (BS-TENG) was built. The PEGDA/Lap hydrogel has enhanced flexibility and mechanical and electrical performance. Its strain was 1001.8%, and the resistance was 10.8. The composite hydrogel had a good biocompatibility and could effectively promote the adhesion of cells. The BS-TENG could be used as a self-powered device to light an LED and serve as an active sensor for real-time monitoring of breath and various human movements. More importantly, the device could be degraded controllably without any harm. Therefore, BS-TENGs will be mainstream in diagnosis and treatment and play an important role in biomedical science.
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Affiliation(s)
- Zhe Li
- School of Medical Technology, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China
| | - Cong Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Wei Sun
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yuan Bai
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Zhou Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yulin Deng
- School of Life, Beijing Institute of Technology, Beijing 100081, China
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13
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Sikhosana ST, Gumede TP, Malebo NJ, Ogundeji AO, Motloung B. The influence of cellulose content on the morphology, thermal, and mechanical properties of poly(lactic acid)/
Eucomis autumnalis
cellulose biocomposites. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Affiliation(s)
- S. T. Sikhosana
- Department of Life Sciences Central University of Technology Bloemfontein South Africa
| | - T. P. Gumede
- Department of Life Sciences Central University of Technology Bloemfontein South Africa
| | - N. J. Malebo
- Department of Life Sciences Central University of Technology Bloemfontein South Africa
| | - A. O. Ogundeji
- Department of Microbiology and Biochemistry University of Free State Bloemfontein South Africa
| | - B. Motloung
- Department of Life Sciences Central University of Technology Bloemfontein South Africa
- Department of Chemistry and Polymer Science Stellenbosch University Matieland South Africa
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14
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Janmohammadi M, Nourbakhsh MS, Bahraminasab M, Tayebi L. Effect of Pore Characteristics and Alkali Treatment on the Physicochemical and Biological Properties of a 3D-Printed Polycaprolactone Bone Scaffold. ACS OMEGA 2023; 8:7378-7394. [PMID: 36873019 PMCID: PMC9979326 DOI: 10.1021/acsomega.2c05571] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 02/08/2023] [Indexed: 05/09/2023]
Abstract
Polycaprolactone scaffolds were designed and 3D-printed with different pore shapes (cube and triangle) and sizes (500 and 700 μm) and modified with alkaline hydrolysis of different ratios (1, 3, and 5 M). In total, 16 designs were evaluated for their physical, mechanical, and biological properties. The present study mainly focused on the pore size, porosity, pore shapes, surface modification, biomineralization, mechanical properties, and biological characteristics that might influence bone ingrowth in 3D-printed biodegradable scaffolds. The results showed that the surface roughness in treated scaffolds increased compared to untreated polycaprolactone scaffolds (R a = 2.3-10.5 nm and R q = 17- 76 nm), but the structural integrity declined with an increase in the NaOH concentration especially in the scaffolds with small pores and a triangle shape. Overall, the treated polycaprolactone scaffolds particularly with the triangle shape and smaller pore size provided superior performance in mechanical strength similar to that of cancellous bone. Additionally, the in vitro study showed that cell viability increased in the polycaprolactone scaffolds with cubic pore shapes and small pore sizes, whereas mineralization was enhanced in the designs with larger pore sizes. Based on the results obtained, this study demonstrated that the 3D-printed modified polycaprolactone scaffolds exhibit a favorable mechanical property, biomineralization, and better biological properties; therefore, they can be applied in bone tissue engineering.
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Affiliation(s)
- Mahsa Janmohammadi
- Department
of Biomedical Engineering, Faculty of New Sciences and Technologies, Semnan University, Semnan 3513119111, Iran
| | | | - Marjan Bahraminasab
- Department
of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan 3513138111, Iran
- Nervous
System Stem Cells Research Center, Semnan
University of Medical Sciences, Semnan 3513138111, Iran
| | - Lobat Tayebi
- Marquette
University School of Dentistry, Milwaukee, Wisconsin 53233, United States
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15
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Niu X, Li N, Du Z, Li X. Integrated gradient tissue-engineered osteochondral scaffolds: Challenges, current efforts and future perspectives. Bioact Mater 2023; 20:574-597. [PMID: 35846846 PMCID: PMC9254262 DOI: 10.1016/j.bioactmat.2022.06.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/30/2022] [Accepted: 06/15/2022] [Indexed: 02/07/2023] Open
Abstract
The osteochondral defect repair has been most extensively studied due to the rising demand for new therapies to diseases such as osteoarthritis. Tissue engineering has been proposed as a promising strategy to meet the demand of simultaneous regeneration of both cartilage and subchondral bone by constructing integrated gradient tissue-engineered osteochondral scaffold (IGTEOS). This review brought forward the main challenges of establishing a satisfactory IGTEOS from the perspectives of the complexity of physiology and microenvironment of osteochondral tissue, and the limitations of obtaining the desired and required scaffold. Then, we comprehensively discussed and summarized the current tissue-engineered efforts to resolve the above challenges, including architecture strategies, fabrication techniques and in vitro/in vivo evaluation methods of the IGTEOS. Especially, we highlighted the advantages and limitations of various fabrication techniques of IGTEOS, and common cases of IGTEOS application. Finally, based on the above challenges and current research progress, we analyzed in details the future perspectives of tissue-engineered osteochondral construct, so as to achieve the perfect reconstruction of the cartilaginous and osseous layers of osteochondral tissue simultaneously. This comprehensive and instructive review could provide deep insights into our current understanding of IGTEOS. Providing main challenges to establish integrated gradient osteochondral scaffold. Discussing the current tissue-engineered efforts to resolve the above challenges. Highlighting construct techniques, and evaluation index and methods of IGTEOS. Discussing the future perspectives to achieve perfect osteochondral reconstruction.
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Affiliation(s)
- Xiaolian Niu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Ning Li
- Department of Orthopedics, The Fourth Central Hospital of Baoding City, Baoding, 072350, China
| | - Zhipo Du
- Department of Orthopedics, The Fourth Central Hospital of Baoding City, Baoding, 072350, China
- Corresponding author.
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
- Corresponding author.
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16
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Feng G, Zhang P, Huang J, Yu Y, Yang F, Zhao X, Wang W, Li D, Sun S, Niu X, Chai L, Li J. Sequential Release of Panax Notoginseng Saponins and Osteopractic Total Flavone from Poly ( L-Lactic Acid) Scaffold for Treating Glucocorticoid-Associated Osteonecrosis of Femoral Head. J Funct Biomater 2023; 14:jfb14010031. [PMID: 36662078 PMCID: PMC9863477 DOI: 10.3390/jfb14010031] [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: 11/23/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 01/06/2023] Open
Abstract
Glucocorticoids inhibit angiogenesis in the femoral head, which fails to nourish the bone tissue and leads to osteonecrosis. Restoring angiogenesis is not only essential for vessel formation, but also crucial for osteogenesis. Poly (L-lactic acid) (PLLA) is commonly used in the bone tissue engineering field. Panax notoginseng saponins (PNS) and osteopractic total flavone (OTF) promote angiogenesis and osteogenesis, respectively. We designed a sequentially releasing PLLA scaffold including PLLA loaded with OTF (inner layer) and PLLA loaded with PNS (outer layer). We assessed the osteogenic effect of angiogenesis in this scaffold by comparing it with the one-layered scaffold (PLLA embedded with OTF and PNS) in vivo. Results from the micro-CT showed that the data of bone mineral density (BMD), bone volume (BV), and percent bone volume (BV/TV) in the PO-PP group were significantly higher than those in the POP group (p < 0.01). Histological analyses show that the PO-PP scaffold exhibits better angiogenic and osteogenic effects compared with the one-layered scaffold. These might result from the different structures between them, where the sequential release of a bi-layer scaffold achieves the osteogenic effect of vascularization by initially releasing PNS in the outer layer. We further explored the possible mechanism by an immunohistochemistry analysis and an immunofluorescence assay. The results showed that the protein expressions of vascular endothelial growth factor (VEGF) and platelet endothelial cell adhesion molecule-1(CD31) in the PO-PP scaffold were significantly higher than those in the POP scaffold (p < 0.01); the protein expressions of osteocalcin (OCN), osteopontin (OPN), and alkaline phosphatase (ALP) in the PO-PP scaffold were significantly higher than those in the POP scaffold (p < 0.05). Upregulating the expressions of angiogenic and osteogenic proteins might be the possible mechanism.
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Affiliation(s)
- Guiyu Feng
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Pingxin Zhang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Jian Huang
- Department of Orthopedic, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yao Yu
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Fenghe Yang
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Xueqian Zhao
- Yuquan Hospital Affiliated to Tsinghua University, Beijing 100040, China
| | - Wei Wang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Dongyang Li
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Song Sun
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Xufeng Niu
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
- Correspondence: (X.N.); (L.C.); (J.L.)
| | - Limin Chai
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
- Correspondence: (X.N.); (L.C.); (J.L.)
| | - Jinyu Li
- Department of Orthopedic, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
- Correspondence: (X.N.); (L.C.); (J.L.)
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17
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Li L, Sheng K, Mannarino M, Jarzem P, Cherif H, Haglund L. o-Vanillin Modulates Cell Phenotype and Extracellular Vesicles of Human Mesenchymal Stem Cells and Intervertebral Disc Cells. Cells 2022; 11:cells11223589. [PMID: 36429018 PMCID: PMC9688801 DOI: 10.3390/cells11223589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/02/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Human mesenchymal stem cell (hMSC) and extracellular vesicle (EV) therapy is a promising treatment for discogenic low back pain (LBP). Although promising, major obstacles remain to be overcome. Cellular senescence reduces self-renewal and multipotent potentials, and the senescence-associated secretory phenotype creates an inflammatory environment negatively affecting tissue homeostasis. Reducing senescence could therefore improve regenerative approaches. Ortho-Vanillin (o-Vanillin) has senolytic activity and anti-inflammatory properties and could be a valuable supplement to MSC and EV therapy. Here, we used direct co-culture experiments to evaluate proteoglycan synthesis, inflammatory mediators, and senescent cells in the presence or absence of o-Vanillin. EV release and transfer between hMSCs and intervertebral disc cells (DCs) was examined, and the effect on hMSC differentiation and DC phenotype was evaluated in the presence and absence of o-Vanillin. This study demonstrates that o-Vanillin affects cell communication, enhances hMSC differentiation and improves DC phenotype. Co-cultures of DCs and hMSCs resulted in increased proteoglycan synthesis, a decreased number of senescent cells and decreased release of the cytokines IL6 and 8. Effects that were further enhanced by o-Vanillin. o-Vanillin profoundly increased EV release and/or uptake by hMSCs and DCs. DC markers were significantly upregulated in both cell types in response to conditioned media of o-Vanillin treated donor cells. Collectively, this study demonstrates that o-Vanillin affects hMSC and DC crosstalk and suggests that combining hMSCs and senolytic compounds may improve the outcome of cell supplementation and EV therapy for LBP.
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Affiliation(s)
- Li Li
- Department of Surgery, McGill University, Montreal, QC H3G 1A4, Canada
| | - Kai Sheng
- Department of Surgery, McGill University, Montreal, QC H3G 1A4, Canada
- Shriners Hospital for Children, Montreal, QC H4A 0A9, Canada
| | - Matthew Mannarino
- Department of Surgery, McGill University, Montreal, QC H3G 1A4, Canada
| | - Peter Jarzem
- Department of Surgery, McGill University, Montreal, QC H3G 1A4, Canada
| | - Hosni Cherif
- Department of Surgery, McGill University, Montreal, QC H3G 1A4, Canada
| | - Lisbet Haglund
- Department of Surgery, McGill University, Montreal, QC H3G 1A4, Canada
- Shriners Hospital for Children, Montreal, QC H4A 0A9, Canada
- Correspondence: ; Tel.: +1-514-934-1934 (ext. 35380)
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18
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Puppi D, Pecorini G, Parrini G. Additive Manufacturing of Anatomical Poly(d,l-lactide) Scaffolds. Polymers (Basel) 2022; 14:polym14194057. [PMID: 36236005 PMCID: PMC9571077 DOI: 10.3390/polym14194057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Poly(lactide) (PLA) is one of the most investigated semicrystalline polymers for material extrusion (MEX) additive manufacturing (AM) techniques based on polymer melt processing. Research on its application for the development of customized devices tailored to specific anatomical parts of the human body can provide new personalized medicine strategies. This research activity was aimed at testing a new multifunctional AM system for the design and fabrication by MEX of anatomical and dog-bone-shaped PLA samples with different infill densities and deposition angles. In particular, a commercial PLA filament was employed to validate the computer-aided design (CAD) and manufacturing (CAM) process for the development of scaffold prototypes modeled on a human bone defect. Physical-chemical characterization of the obtained samples by 1H-NMR spectroscopy, size exclusion chromatography (SEC), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) demonstrated a small reduction of polymer molecular weight (~5%) due to thermal processing, as well as that the commercial polymer employed was a semicrystalline poly(d,l-lactide). Mechanical characterization highlighted the possibility of tuning elastic modulus and strength, as well as the elongation at break up to a 60% value by varying infill parameters.
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Affiliation(s)
- Dario Puppi
- BIOLab Research Group, Department of Chemistry and Industrial Chemistry, University of Pisa, UdR INSTM—Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
- Correspondence: (D.P.); (G.P.)
| | - Gianni Pecorini
- BIOLab Research Group, Department of Chemistry and Industrial Chemistry, University of Pisa, UdR INSTM—Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
| | - Gianluca Parrini
- Fabrica Machinale, Via Giuntini 13, Cascina, 56021 Pisa, Italy
- Correspondence: (D.P.); (G.P.)
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19
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Zhang J, Tong D, Song H, Ruan R, Sun Y, Lin Y, Wang J, Hou L, Dai J, Ding J, Yang H. Osteoimmunity-Regulating Biomimetically Hierarchical Scaffold for Augmented Bone Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202044. [PMID: 35785450 DOI: 10.1002/adma.202202044] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/14/2022] [Indexed: 05/22/2023]
Abstract
Engineering a proper immune response following biomaterial implantation is essential to bone tissue regeneration. Herein, a biomimetically hierarchical scaffold composed of deferoxamine@poly(ε-caprolactone) nanoparticles (DFO@PCL NPs), manganese carbonyl (MnCO) nanosheets, gelatin methacryloyl hydrogel, and a polylactide/hydroxyapatite (HA) matrix is fabricated to augment bone repair by facilitating the balance of the immune system and bone metabolism. First, a 3D printed stiff scaffold with a well-organized gradient structure mimics the cortical and cancellous bone tissues; meanwhile, an inside infusion of a soft hydrogel further endows the scaffold with characteristics of the extracellular matrix. A Fenton-like reaction between MnCO and endogenous hydrogen peroxide generated at the implant-tissue site triggers continuous release of carbon monoxide and Mn2+ , thus significantly lessening inflammatory response by upregulating the M2 phenotype of macrophages, which also secretes vascular endothelial growth factor to induce vascular formation. Through activating the hypoxia-inducible factor-1α pathway, Mn2+ and DFO@PCL NP further promote angiogenesis. Moreover, DFO inhibits osteoclast differentiation and synergistically collaborates with the osteoinductive activity of HA. Based on amounts of data in vitro and in vivo, strong immunomodulatory, intensive angiogenic, weak osteoclastogenic, and superior osteogenic abilities of such an osteoimmunity-regulating scaffold present a profound effect on improving bone regeneration, which puts forward a worthy base and positive enlightenment for large-scale bone defect repair.
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Affiliation(s)
- Jin Zhang
- College of Chemical Engineering, Qingyuan Innovation Laboratory, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, P. R. China
| | - Dongmei Tong
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, P. R. China
| | - Honghai Song
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun East Road, Hangzhou, 310016, P. R. China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Zhejiang University School of Medicine, 3 Qingchun East Road, Hangzhou, 310016, P. R. China
| | - Renjie Ruan
- College of Chemical Engineering, Qingyuan Innovation Laboratory, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, P. R. China
| | - Yifu Sun
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
- Department of Orthopedics, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun, 130041, P. R. China
| | - Yandai Lin
- College of Chemical Engineering, Qingyuan Innovation Laboratory, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, P. R. China
| | - Jun Wang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, P. R. China
| | - Linxi Hou
- College of Chemical Engineering, Qingyuan Innovation Laboratory, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, P. R. China
| | - Jiayong Dai
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 Qingchun East Road, Hangzhou, 310016, P. R. China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Zhejiang University School of Medicine, 3 Qingchun East Road, Hangzhou, 310016, P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Huanghao Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, P. R. China
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20
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Optimizing Design Parameters of PLA 3D-Printed Scaffolds for Bone Defect Repair. SURGERIES 2022. [DOI: 10.3390/surgeries3030018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Current materials used to fill bone defects (ceramics, cement) either lack strength or do not induce bone repair. The use of biodegradable polymers such as PLA may promote patient healing by stimulating the production of new bone in parallel with a controlled degradation of the scaffold. This project aims to determine the design parameters maximising scaffold mechanical performance in such materials. Starting from a base cylindrical model of 10 mm height and of outer and inner diameters of 10 and 4 mm, respectively, 27 scaffolds were designed. Three design parameters were investigated: pore distribution (crosswise, lengthwise, and eccentric), pore shape (triangular, circular, and square), and pore size (surface area of 0.25 mm2, 0.5625 mm2, and 1 mm2). Using the finite element approach, a compressive displacement (0.05 mm/s up to 15% strain) was simulated on the models and the resulting scaffold stiffnesses (N/mm2) were compared. The models presenting good mechanical behaviors were further printed along two orientations: 0° (cylinder sitting on its base) and 90° (cylinder laying on its side). A total of n = 5 specimens were printed with PLA for each of the retained models and experimentally tested using a mechanical testing machine with the same compression parameters. Rigidity and yield strength were evaluated from the experimental curves. Both numerically and experimentally, the highest rigidity was found in the model with circular pore shape, crosswise pore distribution, small pore size (surface area of 0.25 mm2), and a 90° printing orientation. Its average rigidity reached 961 ± 32 MPa from the mechanical testing and 797 MPa from the simulation, with a yield strength of 42 ± 1.5 MPa. The same model with a printing orientation of 0° resulted in an average rigidity of 515 ± 7 MPa with a yield strength of 32 ± 1.6 MPa. Printing orientation and pore size were found to be the most influential design parameters on rigidity. The developed design methodology should accelerate the identification of effective scaffolds for future in vitro and in vivo studies.
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21
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Noroozi R, Shamekhi MA, Mahmoudi R, Zolfagharian A, Asgari F, Mousavizadeh A, Bodaghi M, Hadi A, Haghighipour N. In vitro static and dynamic cell culture study of novel bone scaffolds based on 3D-printed PLA and cell-laden alginate hydrogel. Biomed Mater 2022; 17. [PMID: 35609602 DOI: 10.1088/1748-605x/ac7308] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/24/2022] [Indexed: 11/11/2022]
Abstract
The aim of this paper was to design and fabricate a novel composite scaffold based on the combination of 3D-printed PLA-based triply minimal surface structures (TPMS) and cell-laden alginate hydrogel. This novel scaffold improves the low mechanical properties of alginate hydrogel and can also provide a scaffold with a suitable pore size, which can be used in bone regeneration applications. In this regard, an implicit function was used to generate some Gyroid TPMS scaffolds. Then the fused deposition modeling (FDM) process was employed to print the scaffolds. Moreover, the micro-CT technique was employed to assess the microstructure of 3D-printed TPMS scaffolds and obtain the real geometries of printed scaffolds. The mechanical properties of composite scaffolds were investigated under compression tests experimentally. It was shown that different mechanical behaviors could be obtained for different implicit function parameters. In this research, to assess the mechanical behavior of printed scaffolds in terms of the strain-stress curves on, two approaches were presented: equivalent volume and finite element-based volume. Results of strain-stress curves showed that the finite-element based approach predicts a higher level of stress. Moreover, the biological response of composite scaffolds in terms of cell viability, cell proliferation, and cell attachment was investigated. In this vein, a dynamic cell culture system was designed and fabricated, which improves mass transport through the composite scaffolds and applies mechanical loading to the cells, which helps cell proliferation. Moreover, the results of the novel composite scaffolds were compared to those without Alginate, and it was shown that the composite scaffold could create more viability and cell proliferation in both dynamic and static cultures. Also, it was shown that scaffolds in dynamic cell culture have a better biological response than in static culture. In addition, Scanning electron microscopy was employed to study the cell adhesion on the composite scaffolds, which showed excellent attachment between the scaffolds and cells.
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Affiliation(s)
- Reza Noroozi
- Pasteur Institute of Iran, tehran, Tehran, 1316943551, Iran (the Islamic Republic of)
| | - Mohammad Amin Shamekhi
- Department of Polymer Engineering, Sarvestan Branch, Islamic Azad University, Sarvestan, Shiraz, Shiraz, 19585-466, Iran (the Islamic Republic of)
| | - Reza Mahmoudi
- Yasuj University of Medical Sciences, yasuj, Yasuj, 000, Iran (the Islamic Republic of)
| | - Ali Zolfagharian
- Engineering, Deakin University Faculty of Science Engineering and Built Environment, Waurn Ponds, Geelong, Victoria, 3217, AUSTRALIA
| | - Fatemeh Asgari
- Pasteur Institute of Iran, tehran, Tehran, 1316943551, Iran (the Islamic Republic of)
| | - Ali Mousavizadeh
- Yasuj University of Medical Sciences, yasuj, Yasuj, 00000, Iran (the Islamic Republic of)
| | - Mahdi Bodaghi
- Engineering , Nottingham Trent University - Clifton Campus, Nottingham, Nottingham, NG11 8NS, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Amin Hadi
- Cellular and Molecular Research Center , Yasuj University of Medical Sciences, Yasuj, Yasuj, 00000, Iran (the Islamic Republic of)
| | - Nooshin Haghighipour
- Pasteur Institute of Iran, Tehran, Tehran, Tehran, 1316943551, Iran (the Islamic Republic of)
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Mechanical activation drives tenogenic differentiation of human mesenchymal stem cells in aligned dense collagen hydrogels. Biomaterials 2022; 286:121606. [DOI: 10.1016/j.biomaterials.2022.121606] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 05/12/2022] [Accepted: 05/27/2022] [Indexed: 01/13/2023]
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23
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Wei M, Hsu YI, Asoh TA, Sung MH, Uyama H. Design of Injectable Poly(γ-glutamic acid)/Chondroitin Sulfate Hydrogels with Mineralization Ability. ACS APPLIED BIO MATERIALS 2022; 5:1508-1518. [PMID: 35286062 DOI: 10.1021/acsabm.1c01269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Biocompatible hydrogels are considered promising agents for application in bone tissue engineering. However, the design of reliable hydrogels with satisfactory injectability, mechanical strength, and a rapid biomineralization rate for bone regeneration remains challenging. Herein, injectable hydrogels are fabricated using hydrazide-modified poly(γ-glutamic acid) and oxidized chondroitin sulfate by combining acylhydrazone bonds and ionic bonding of carboxylic acid groups or sulfate groups with calcium ions (Ca2+). The resulting hydrogels display a fast gelation rate and good self-healing ability due to the acylhydrazone bonds. The introduction of Ca2+ at a moderate concentration enhances the mechanical strength of the hydrogels. The self-healing capacity of hydrogels is improved, with a healing efficiency of 87.5%, because the addition of Ca2+ accelerates the healing process of hydrogels. Moreover, the hydrogels can serve as a robust template for biomineralization. The mineralized hydrogels with increasing Ca2+ concentration exhibit rapid formation and high crystallization of apatite after immersion in simulated body fluid. The hydrogels containing the aldehyde groups possess good bioadhesion to the bone and cartilage tissues. With these superior properties, the developed hydrogels demonstrate potential applicability in bone tissue engineering.
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Affiliation(s)
- Meng Wei
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Moon-Hee Sung
- Department of Advanced Fermentation Fusion Science and Technology, Kookmin University, Seongbuk-gu, Seoul 136-702, Korea
| | - Hiroshi Uyama
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
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BMP-2 Enhances Osteogenic Differentiation of Human Adipose-Derived and Dental Pulp Stem Cells in 2D and 3D In Vitro Models. Stem Cells Int 2022; 2022:4910399. [PMID: 35283997 PMCID: PMC8916887 DOI: 10.1155/2022/4910399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/02/2021] [Accepted: 11/08/2021] [Indexed: 12/25/2022] Open
Abstract
Bone tissue provides support and protection to different organs and tissues. Aging and different diseases can cause a decrease in the rate of bone regeneration or incomplete healing; thus, tissue-engineered substitutes can be an acceptable alternative to traditional therapies. In the present work, we have developed an in vitro osteogenic differentiation model based on mesenchymal stem cells (MSCs), to first analyse the influence of the culture media and the origin of the cells on the efficiency of this process and secondly to extrapolate it to a 3D environment to evaluate its possible application in bone regeneration therapies. Two osteogenic culture media were used (one commercial from Stemcell Technologies and a second supplemented with dexamethasone, ascorbic acid, glycerol-2-phosphate, and BMP-2), with human cells of a mesenchymal phenotype from two different origins: adipose tissue (hADSCs) and dental pulp (hDPSCs). The expression of osteogenic markers in 2D cultures was evaluated in several culture periods by means of the immunofluorescence technique and real-time gene expression analysis, taking as reference MG-63 cells of osteogenic origin. The same strategy was extrapolated to a 3D environment of polylactic acid (PLA), with a 3% alginate hydrogel. The expression of osteogenic markers was detected in both hADSCs and hDPSCs, cultured in either 2D or 3D environments. However, the osteogenic differentiation of MSCs was obtained based on the culture medium and the cell origin used, since higher osteogenic marker levels were found when hADSCs were cultured with medium supplemented with BMP-2. Furthermore, the 3D culture used was suitable for cell survival and osteogenic induction.
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25
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Application and Development of Modern 3D Printing Technology in the Field of Orthopedics. BIOMED RESEARCH INTERNATIONAL 2022; 2022:8759060. [PMID: 35211626 PMCID: PMC8863440 DOI: 10.1155/2022/8759060] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/06/2022] [Accepted: 01/17/2022] [Indexed: 12/31/2022]
Abstract
3D printing, also known as additive manufacturing, is a technology that uses a variety of adhesive materials such as powdered metal or plastic to construct objects based on digital models. Recently, 3D printing technology has been combined with digital medicine, materials science, cytology, and other multidisciplinary fields, especially in the field of orthopedic built-in objects. The development of advanced 3D printing materials continues to meet the needs of clinical precision medicine and customize the most suitable prosthesis for everyone to improve service life and satisfaction. This article introduces the development of 3D printing technology and different types of materials. We also discuss the shortcomings of 3D printing technology and the current challenges, including the poor bionics of 3D printing products, lack of ideal bioinks, product safety, and lack of market supervision. We also prospect the future development trends of 3D printing.
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26
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Li MX, Ren Y, Lee D, Choi SW. Crystallization Behavior and Electrical Properties of Nanoparticle-Reinforced Poly(lactic Acid)-Based Films. Polymers (Basel) 2022; 14:polym14010177. [PMID: 35012199 PMCID: PMC8747221 DOI: 10.3390/polym14010177] [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: 12/05/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 12/20/2022] Open
Abstract
Graphene oxide (GO) and multiwalled carbon nanotubes with silver particles (MWNT-Ag) of different concentrations were used as nanofillers to prepare poly(lactic acid) (PLA) nanoparticle films through the solvent casting method. In this study, the effects of nanoparticles on the crystallization behavior, relationships between the dispersion and electrical properties, and hydrolytic degradation behaviors were investigated for the PLA/MWNT-Ag and PLA/rGO films. Differential scanning calorimetry was used to evaluate the crystallization behaviors of the PLA/MWNT-Ag and PLA/reduced GO (rGO) films. Electron probe microanalysis was performed to characterize the dispersion of MWNT-Ag, and X-ray diffraction and Raman spectroscopy were used to determine the degree of dispersion of rGO in the PLA matrix. The results showed that nanoparticles enhanced the crystallization kinetics of PLA as well as the hydrolytic degradation rate. From the measurement of electrical properties, the electrical conductivity of PLA/MWNT-Ag 1.0 wt% was much higher than that of the pure PLA and PLA/rGO films, showing that MANT and Ag nanoparticles contribute greatly to enhancing the electrical conductivity of the PLA/MWNT-Ag films.
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Affiliation(s)
- Mei-Xian Li
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (M.-X.L.); (Y.R.)
| | - Yu Ren
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (M.-X.L.); (Y.R.)
- Xinfengming Group Huzhou Zhongshi Technology Co., Ltd., Huzhou 313000, China
| | - Dasom Lee
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, Korea;
| | - Sung-Woong Choi
- Department of Mechanical System Engineering, Gyeongsang National University, Tongyeong-si 53064, Korea
- Correspondence: ; Tel.: +82-55-772-9103; Fax: +82-50-4099-8373
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27
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Li C, Lv H, Du Y, Zhu W, Yang W, Wang X, Wang J, Chen W. Biologically modified implantation as therapeutic bioabsorbable materials for bone defect repair. Regen Ther 2021; 19:9-23. [PMID: 35024389 PMCID: PMC8732753 DOI: 10.1016/j.reth.2021.12.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/08/2021] [Accepted: 12/20/2021] [Indexed: 12/26/2022] Open
Abstract
For decades, researches have concentrated on the mechanical properties, biodegradation, and biocompatibility of implants used in the therapy of large size bone defect. In vivo studies demonstrate that bioabsorbable bone substitute materials can reduce the risk of common symptoms such as inflammation and osteonecrosis caused by bio-inert materials after long-term implantation. Several organic, inorganic, and composite materials have been approved for clinical application, based on their unique characteristics and advantages. Although some artificial bioabsorbable bone substitute materials have been used for years, there are still some disadvantages existing, such as low mechanical strength, high brittleness, and low degradation rate. Therefore, novel bioabsorbable composite materials biomaterials have been developed for bone defect repair. In this review, we provide an overview of the development of artificial bioabsorbable bone substitute materials and highlight the advantages and disadvantages. Furthermore, recent advances in bioabsorbable bone substitute materials used in bone defect repair are outlined. Finally, we discuss current challenges and further developments in the clinical application of bioabsorbable bone substitute materials.
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Affiliation(s)
- Chao Li
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China
| | - Hongzhi Lv
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China
| | - Yawei Du
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, PR China
| | - Wenbo Zhu
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China
| | - Weijie Yang
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, No.30 Shuangqing Road, Beijing 100084, PR China
| | - Juan Wang
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Corresponding author. No.139 Ziqiang Road, Shjiazhuang 050051, PR China. Fax: +86-311-87023626.
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang 050051, PR China,Corresponding author. No.139 Ziqiang Road, Shjiazhuang 050051, PR China. Fax: +86-311-87023626.
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28
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Influence of Solvent and Substrate on Hydrophobicity of PLA Films. Polymers (Basel) 2021; 13:polym13244289. [PMID: 34960840 PMCID: PMC8707572 DOI: 10.3390/polym13244289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/03/2021] [Accepted: 12/05/2021] [Indexed: 11/16/2022] Open
Abstract
The study of the surface properties of materials is key in determining whether the material will be suitable for medical purposes. One of these properties is hydrophobicity, which is important when assessing its behavior against bacterial adhesion. In this work, we have studied the influence of the solvent (chloroform, acetone, and tetrahydrofuran) and the substrate (glass, PTFE, silicone, and Ti6Al4V) on which polylactic acid is deposited in solution to manufacture films by solvent-casting. Thus, it has been found that there are no significant differences in hydrophobicity and surface tension among the solvents evaluated, but there are significant differences with respect to the substrates: PLA films casted on silicone are hydrophobic, while those casted on the rest of the substrates are hydrophilic. This is related to the fact that the silicone interacts with the polymer modifying its spatial arrangement, exposing its methyl groups towards the interface with the air. In this way, it has been shown that, when manufacturing PLA films, it is important to choose the right surface on which to deposit them, depending on their desired function.
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29
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Biagini G, Senegaglia AC, Pereira T, Berti LF, Marcon BH, Stimamiglio MA. 3D Poly(Lactic Acid) Scaffolds Promote Different Behaviors on Endothelial Progenitors and Adipose-Derived Stromal Cells in Comparison With Standard 2D Cultures. Front Bioeng Biotechnol 2021; 9:700862. [PMID: 34568295 PMCID: PMC8455839 DOI: 10.3389/fbioe.2021.700862] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022] Open
Abstract
Tissue engineering is a branch of regenerative medicine, which comprises the combination of biomaterials, cells and other bioactive molecules to regenerate tissues. Biomaterial scaffolds act as substrate and as physical support for cells and they can also reproduce the extracellular matrix cues. Although tissue engineering applications in cellular therapy tend to focus on the use of specialized cells from particular tissues or stem cells, little attention has been paid to endothelial progenitors, an important cell type in tissue regeneration. We combined 3D printed poly(lactic acid) scaffolds comprising two different pore sizes with human adipose-derived stromal cells (hASCs) and expanded CD133+ cells to evaluate how these two cell types respond to the different architectures. hASCs represent an ideal source of cells for tissue engineering applications due to their low immunogenicity, paracrine activity and ability to differentiate. Expanded CD133+ cells were isolated from umbilical cord blood and represent a source of endothelial-like cells with angiogenic potential. Fluorescence microscopy and scanning electron microscopy showed that both cell types were able to adhere to the scaffolds and maintain their characteristic morphologies. The porous PLA scaffolds stimulated cell cycle progression of hASCs but led to an arrest in the G1 phase and reduced proliferation of expanded CD133+ cells. Also, while hASCs maintained their undifferentiated profile after 7 days of culture on the scaffolds, expanded CD133+ cells presented a reduction of the von Willebrand factor (vWF), which affected the cells’ angiogenic potential. We did not observe changes in cell behavior for any of the parameters analyzed between the scaffolds with different pore sizes, but the 3D environment created by the scaffolds had different effects on the cell types tested. Unlike the extensively used mesenchymal stem cell types, the 3D PLA scaffolds led to opposite behaviors of the expanded CD133+ cells in terms of cytotoxicity, proliferation and immunophenotype. The results obtained reinforce the importance of studying how different cell types respond to 3D culture systems when considering the scaffold approach for tissue engineering.
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Affiliation(s)
- Giuliana Biagini
- Laboratório de Biologia Básica de Células-Tronco, Instituto Carlos Chagas, Fiocruz Paraná, Curitiba, Brazil
| | | | - Tarciso Pereira
- Department of Mechanical Engineering, Post Graduate Program in Biomedical Engineering, Universidade Tecnológica Federal do Paraná, Curitiba, Brazil
| | - Lucas Freitas Berti
- Department of Mechanical Engineering, Post Graduate Program in Biomedical Engineering, Universidade Tecnológica Federal do Paraná, Curitiba, Brazil
| | - Bruna Hilzendeger Marcon
- Laboratório de Biologia Básica de Células-Tronco, Instituto Carlos Chagas, Fiocruz Paraná, Curitiba, Brazil
| | - Marco Augusto Stimamiglio
- Laboratório de Biologia Básica de Células-Tronco, Instituto Carlos Chagas, Fiocruz Paraná, Curitiba, Brazil
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30
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Influence of Human Jaw Periosteal Cells Seeded β-Tricalcium Phosphate Scaffolds on Blood Coagulation. Int J Mol Sci 2021; 22:ijms22189942. [PMID: 34576103 PMCID: PMC8467579 DOI: 10.3390/ijms22189942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 12/13/2022] Open
Abstract
Tissue engineering offers auspicious opportunities in oral and maxillofacial surgery to heal bone defects. For this purpose, the combination of cells with stability-providing scaffolds is required. Jaw periosteal cells (JPCs) are well suited for regenerative therapies, as they are easily accessible and show strong osteogenic potential. In this study, we analyzed the influence of uncoated and polylactic-co-glycolic acid (PLGA)-coated β-tricalcium phosphate (β-TCP) scaffolds on JPC colonization and subsequent osteogenic differentiation. Furthermore, interaction with the human blood was investigated. This study demonstrated that PLGA-coated and uncoated β-TCP scaffolds can be colonized with JPCs and further differentiated into osteogenic cells. On day 15, after cell seeding, JPCs with and without osteogenic differentiation were incubated with fresh human whole blood under dynamic conditions. The activation of coagulation, complement system, inflammation, and blood cells were analyzed using ELISA and scanning electron microscopy (SEM). JPC-seeded scaffolds showed a dense cell layer and osteogenic differentiation capacity on both PLGA-coated and uncoated β-TCP scaffolds. SEM analyses showed no relevant blood cell attachment and ELISA results revealed no significant increase in most of the analyzed cell activation markers (β-thromboglobulin, Sc5B-9, polymorphonuclear (PMN)-elastase). However, a notable increase in thrombin-antithrombin III (TAT) complex levels, as well as fibrin fiber accumulation on JPC-seeded β-TCP scaffolds, was detected compared to the scaffolds without JPCs. Thus, this study demonstrated that besides the scaffold material the cells colonizing the scaffolds can also influence hemostasis, which can influence the regeneration of bone tissue.
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31
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Trofimchuk ES, Potseleev VV, Khavpachev MA, Moskvina MA, Nikonorova NI. Polylactide-Based Porous Materials: Synthesis, Hydrolytic Degradation Features, and Application Areas. POLYMER SCIENCE SERIES C 2021. [DOI: 10.1134/s1811238221020107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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32
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Fairag R, Li L, Ramirez-GarciaLuna JL, Taylor MS, Gaerke B, Weber MH, Rosenzweig DH, Haglund L. A Composite Lactide-Mineral 3D-Printed Scaffold for Bone Repair and Regeneration. Front Cell Dev Biol 2021; 9:654518. [PMID: 34307346 PMCID: PMC8299729 DOI: 10.3389/fcell.2021.654518] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 06/21/2021] [Indexed: 01/08/2023] Open
Abstract
Orthopedic tumor resection, trauma, or degenerative disease surgeries can result in large bone defects and often require bone grafting. However, standard autologous bone grafting has been associated with donor site morbidity and/or limited quantity. As an alternate, allografts with or without metallic or polyether-etherketone have been used as grafting substitutes. However, these may have drawbacks as well, including stress shielding, pseudarthrosis, disease-transmission, and infection. There is therefore a need for alternative bone substitutes, such as the use of mechanically compliant three-dimensional (3D)-printed scaffolds. Several off-the-shelf materials are available for low-cost fused deposition 3D printing such as polylactic acid (PLA) and polycaprolactone (PCL). We have previously described the feasibility of 3D-printed PLA scaffolds to support cell activity and extracellular matrix deposition. In this study, we investigate two medical-grade filaments consistent with specifications found in American Society for Testing and Materials (ASTM) standard for semi-crystalline polylactide polymers for surgical implants, a pure polymer (100M) and a copolymeric material (7415) for their cytocompatibility and suitability in bone tissue engineering. Moreover, we assessed the impact on osteo-inductive properties with the addition of beta-tricalcium phosphate (β-TCP) minerals and assessed their mechanical properties. 100M and 7415 scaffolds with the additive β-TCP demonstrated superior mesenchymal stem cells (MSCs) differentiation detected via increased alkaline phosphatase activity (6-fold and 1.5-fold, respectively) and mineralized matrix deposition (14-fold and 5-fold, respectively) in vitro. Furthermore, we evaluated in vivo compatibility, biosafety and bone repair potential in a rat femur window defect model. 100M+β -TCP implants displayed a positive biosafety profile and showed significantly enhanced new bone formation compared to 100M implants evidenced by μCT (39 versus 25% bone volume/tissue volume ratio) and histological analysis 6 weeks post-implantation. These scaffolds are encouraging composite biomaterials for repairing bone applications with a great potential for clinical translation. Further analyses are required with appropriate evaluation in a larger critical-sized defect animal model with long-term follow-up.
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Affiliation(s)
- Rayan Fairag
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
- Department of Orthopedic Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Li Li
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
| | | | | | | | - Michael H. Weber
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
| | - Derek H. Rosenzweig
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
| | - Lisbet Haglund
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
- Shriners Hospital for Children, Montreal, QC, Canada
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33
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Zhao R, Yang R, Cooper PR, Khurshid Z, Shavandi A, Ratnayake J. Bone Grafts and Substitutes in Dentistry: A Review of Current Trends and Developments. Molecules 2021; 26:3007. [PMID: 34070157 PMCID: PMC8158510 DOI: 10.3390/molecules26103007] [Citation(s) in RCA: 183] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/29/2021] [Accepted: 05/13/2021] [Indexed: 02/07/2023] Open
Abstract
After tooth loss, bone resorption is irreversible, leaving the area without adequate bone volume for successful implant treatment. Bone grafting is the only solution to reverse dental bone loss and is a well-accepted procedure required in one in every four dental implants. Research and development in materials, design and fabrication technologies have expanded over the years to achieve successful and long-lasting dental implants for tooth substitution. This review will critically present the various dental bone graft and substitute materials that have been used to achieve a successful dental implant. The article also reviews the properties of dental bone grafts and various dental bone substitutes that have been studied or are currently available commercially. The various classifications of bone grafts and substitutes, including natural and synthetic materials, are critically presented, and available commercial products in each category are discussed. Different bone substitute materials, including metals, ceramics, polymers, or their combinations, and their chemical, physical, and biocompatibility properties are explored. Limitations of the available materials are presented, and areas which require further research and development are highlighted. Tissue engineering hybrid constructions with enhanced bone regeneration ability, such as cell-based or growth factor-based bone substitutes, are discussed as an emerging area of development.
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Affiliation(s)
- Rusin Zhao
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
| | - Ruijia Yang
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
| | - Paul R. Cooper
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Amin Shavandi
- BioMatter Unit—École Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), Avenue F.D. Roosevelt, 50—CP 165/61, 1050 Brussels, Belgium;
| | - Jithendra Ratnayake
- Department of Oral Science, Faculty of Dentistry, University of Otago, 310 Great King Street, Dunedin 9016, New Zealand; (R.Z.); (R.Y.); (P.R.C.)
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34
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Jiang S, Wang M, He J. A review of biomimetic scaffolds for bone regeneration: Toward a cell-free strategy. Bioeng Transl Med 2021; 6:e10206. [PMID: 34027093 PMCID: PMC8126827 DOI: 10.1002/btm2.10206] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 11/05/2020] [Accepted: 11/12/2020] [Indexed: 12/20/2022] Open
Abstract
In clinical terms, bone grafting currently involves the application of autogenous, allogeneic, or xenogeneic bone grafts, as well as natural or artificially synthesized materials, such as polymers, bioceramics, and other composites. Many of these are associated with limitations. The ideal scaffold for bone tissue engineering should provide mechanical support while promoting osteogenesis, osteoconduction, and even osteoinduction. There are various structural complications and engineering difficulties to be considered. Here, we describe the biomimetic possibilities of the modification of natural or synthetic materials through physical and chemical design to facilitate bone tissue repair. This review summarizes recent progresses in the strategies for constructing biomimetic scaffolds, including ion-functionalized scaffolds, decellularized extracellular matrix scaffolds, and micro- and nano-scale biomimetic scaffold structures, as well as reactive scaffolds induced by physical factors, and other acellular scaffolds. The fabrication techniques for these scaffolds, along with current strategies in clinical bone repair, are described. The developments in each category are discussed in terms of the connection between the scaffold materials and tissue repair, as well as the interactions with endogenous cells. As the advances in bone tissue engineering move toward application in the clinical setting, the demonstration of the therapeutic efficacy of these novel scaffold designs is critical.
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Affiliation(s)
- Sijing Jiang
- Department of Plastic SurgeryFirst Affiliated Hospital of Anhui Medical University, Anhui Medical UniversityHefeiChina
| | - Mohan Wang
- Stomatologic Hospital & College, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChina
| | - Jiacai He
- Stomatologic Hospital & College, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChina
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Elhattab K, Bhaduri SB, Lawrence JG, Sikder P. Fused Filament Fabrication (Three-Dimensional Printing) of Amorphous Magnesium Phosphate/Polylactic Acid Macroporous Biocomposite Scaffolds. ACS APPLIED BIO MATERIALS 2021; 4:3276-3286. [PMID: 35014414 DOI: 10.1021/acsabm.0c01620] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The ultimate goal of this paper is to develop novel ceramic-polymer-based biocomposite orthopedic scaffolds with the help of additive manufacturing. Specifically, we incorporate a bioceramic known as amorphous magnesium phosphate (AMP) into polylactic acid (PLA) with the help of the melt-blending technique. Magnesium phosphate (MgP) was chosen as the bioactive component as previous studies have confirmed its favorable biomaterial properties, especially in orthopedics. Special care was taken to develop constant diameter AMP-PLA composite filaments, which would serve as feedstock for a fused filament fabrication (FFF)-based three-dimensional (3D) printer. Before the filaments were used for FFF, a thorough set of characterization protocols comprising of phase analysis, microstructure evaluations, thermal analysis, rheological analysis, and in vitro degradation determinations was performed on the biocomposites. Scanning electron microscopy (SEM) results confirmed a homogenous dispersion of AMP particles in the PLA matrix. Rheological studies demonstrated good printability behavior of the AMP-PLA filaments. In vitro degradation studies indicated a faster degradation rate in the case of AMP-PLA filaments as compared to the single phase PLA filaments. Subsequently, the filaments were fed into an FFF setup, and tensile bars and design-specific macroporous AMP-PLA scaffolds were printed. The biocomposite exhibited favorable mechanical properties. Furthermore, in vitro cytocompatibility results revealed higher pre-osteoblast cell attachment and proliferation on AMP-PLA scaffolds as compared to single-phase PLA scaffolds. Altogether, this study provides a proof of concept that design-specific bioactive AMP-PLA biocomposite scaffolds fabricated by FFF can be potential candidates as medical implants in orthopedics.
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Affiliation(s)
- Karim Elhattab
- Department of Bioengineering, The University of Toledo, Toledo, Ohio 43606, United States
| | - Sarit B Bhaduri
- Department of Mechanical, Industrial and Manufacturing Engineering, The University of Toledo, Toledo, Ohio 43606, United States.,EEC Division, Directorate of Engineering, The National Science Foundation, Alexandria, Virginia 22314, United States
| | - Joseph G Lawrence
- Department of Chemical Engineering, The University of Toledo, Toledo, Ohio 43606, United States
| | - Prabaha Sikder
- Department of Mechanical Engineering, Cleveland State University, Cleveland, Ohio 44115, United States
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Diez-Escudero A, Andersson B, Persson C, Hailer NP. Hexagonal pore geometry and the presence of hydroxyapatite enhance deposition of mineralized bone matrix on additively manufactured polylactic acid scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 125:112091. [PMID: 33965101 DOI: 10.1016/j.msec.2021.112091] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/08/2021] [Accepted: 03/26/2021] [Indexed: 11/24/2022]
Abstract
Additive manufacturing (AM) has revolutionized the design of regenerative scaffolds for orthopaedic applications, enabling customizable geometric designs and material compositions that mimic bone. However, the available evidence is contradictory with respect to which geometric designs and material compositions are optimal. There is a lack of studies that systematically compare different pore sizes and geometries in conjunction with the presence or absence of calcium phosphates. We therefore evaluated the physicochemical and biological properties of additively manufactured scaffolds based on polylactic acid (PLA) in combination with hydroxyapatite (HA). HA was either incorporated in the polymeric matrix or introduced as a coating, yielding 15 and 2% wt., respectively. Pore sizes of the scaffolds varied between 200 and 450 μm and were shaped either triangularly or hexagonally. All scaffolds supported the adhesion, proliferation and differentiation of both primary mouse osteoblasts and osteosarcoma cells up to four weeks, with only small differences in the production of alkaline phosphatase (ALP) between cells grown on different pore geometries and material compositions. However, mineralization of the PLA scaffolds was substantially enhanced in the presence of HA, either embedded in the PLA matrix or as a coating at the surface level, and by larger hexagonal pores. In conclusion, customized HA/PLA composite porous scaffolds intended for the repair of critical size bone defects were obtained by a cost-effective AM method. Our findings indicate that the analysis of osteoblast adhesion and differentiation on experimental scaffolds alone is inconclusive without the assessment of mineralization, and the effects of geometry and composition on bone matrix deposition must be carefully considered in order to understand the regenerative potential of experimental scaffolds.
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Affiliation(s)
- Anna Diez-Escudero
- Ortholab, Department of Surgical Sciences-Orthopaedics, Uppsala University, Sweden; Biomaterial Systems, Department of Materials Science and Engineering, Uppsala University, Sweden.
| | - Brittmarie Andersson
- Ortholab, Department of Surgical Sciences-Orthopaedics, Uppsala University, Sweden
| | - Cecilia Persson
- Biomaterial Systems, Department of Materials Science and Engineering, Uppsala University, Sweden
| | - Nils P Hailer
- Ortholab, Department of Surgical Sciences-Orthopaedics, Uppsala University, Sweden
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Hasheminejad K, Montazeri A, Hasheminejad H. Tailoring adhesion characteristics of poly(L-lactic acid)/graphene nanocomposites by end-grafted polymer chains: An atomic-level study. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Park H, Collignon AM, Lepry WC, Ramirez-GarciaLuna JL, Rosenzweig DH, Chaussain C, Nazhat SN. Acellular dense collagen-S53P4 bioactive glass hybrid gel scaffolds form more bone than stem cell delivered constructs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 120:111743. [PMID: 33545885 DOI: 10.1016/j.msec.2020.111743] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 10/21/2020] [Accepted: 11/13/2020] [Indexed: 01/07/2023]
Abstract
Dense collagen (DC) gels facilitate the osteoblastic differentiation of seeded dental pulp stem cells (DPSCs) and undergo rapid acellular mineralization when incorporated with bioactive glass particles, both in vitro and subcutaneously in vivo. However, the potential of DC-bioactive glass hybrid gels in delivering DPSCs for bone regeneration in an osseous site has not been investigated. In this study, the efficacies of both acellular and DPSC-seeded DC-S53P4 bioactive glass [(53)SiO2-(23)Na2O-(20)CaO-(4)P2O5, wt%] hybrid gels were investigated in a critical-sized murine calvarial defect. The incorporation of S53P4, an osteostimulative bioactive glass, into DC gels led to its accelerated acellular mineralization in simulated body fluid (SBF), in vitro, where hydroxycarbonated apatite was detected within 1 day. By day 7 in SBF, micro-mechanical analysis demonstrated an 8-fold increase in the compressive modulus of the mineralized gels. The in-situ effect of the bioactive glass on human-DPSCs within DC-S53P4 was evident, by their osteogenic differentiation in the absence of osteogenic supplements. The production of alkaline phosphatase and collagen type I was further increased when cultured in osteogenic media. This osteostimulative effect of DC-S53P4 constructs was confirmed in vivo, where after 8 weeks implantation, both acellular scaffolds and DPSC-seeded DC-S53P4 constructs formed mineralized and vascularized bone matrices with osteoblastic and osteoclastic cell activity. Surprisingly, however, in vivo micro-CT analysis confirmed that the acellular scaffolds generated larger volumes of bone, already visible at week 3 and exhibiting superior trabecular architecture. The results of this study suggest that DC-S53P4 scaffolds negate the need for stem cell delivery for effective bone tissue regeneration and may expedite their path towards clinical applications.
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Affiliation(s)
- Hyeree Park
- Department of Mining and Materials Engineering, McGill University, Canada
| | - Anne-Margaux Collignon
- Université de Paris, URP 2496 Laboratory Orofacial Pathologies, Imaging, and Biotherapies and Life Imaging Platform (PIV), Montrouge, France; AP-HP, GH Nord Université de Paris (Louis Mourier and Bretonneau hospitals), France
| | - William C Lepry
- Department of Mining and Materials Engineering, McGill University, Canada
| | | | - Derek H Rosenzweig
- Division of Orthopedic Surgery, McGill University, Canada; Injury, Repair and Recovery Program, Research Institute of McGill University Health Centre, Canada
| | - Catherine Chaussain
- Université de Paris, URP 2496 Laboratory Orofacial Pathologies, Imaging, and Biotherapies and Life Imaging Platform (PIV), Montrouge, France; AP-HP, GH Nord Université de Paris (Louis Mourier and Bretonneau hospitals), France
| | - Showan N Nazhat
- Department of Mining and Materials Engineering, McGill University, Canada.
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Cooke ME, Ramirez-GarciaLuna JL, Rangel-Berridi K, Park H, Nazhat SN, Weber MH, Henderson JE, Rosenzweig DH. 3D Printed Polyurethane Scaffolds for the Repair of Bone Defects. Front Bioeng Biotechnol 2020; 8:557215. [PMID: 33195122 PMCID: PMC7644785 DOI: 10.3389/fbioe.2020.557215] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 09/18/2020] [Indexed: 01/08/2023] Open
Abstract
Critical-size bone defects are those that will not heal without intervention and can arise secondary to trauma, infection, and surgical resection of tumors. Treatment options are currently limited to filling the defect with autologous bone, of which there is not always an abundant supply, or ceramic pastes that only allow for limited osteo-inductive and -conductive capacity. In this study we investigate the repair of bone defects using a 3D printed LayFomm scaffold. LayFomm is a polymer blend of polyvinyl alcohol (PVA) and polyurethane (PU). It can be printed using the most common method of 3D printing, fused deposition modeling, before being washed in water-based solutions to remove the PVA. This leaves a more compliant, micro-porous PU elastomer. In vitro analysis of dental pulp stem cells seeded onto macro-porous scaffolds showed their ability to adhere, proliferate and form mineralized matrix on the scaffold in the presence of osteogenic media. Subcutaneous implantation of LayFomm in a rat model showed the formation of a vascularized fibrous capsule, but without a chronic inflammatory response. Implantation into a mandibular defect showed significantly increased mineralized tissue production when compared to a currently approved bone putty. While their mechanical properties are insufficient for use in load-bearing defects, these findings are promising for the use of polyurethane scaffolds in craniofacial bone regeneration.
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Affiliation(s)
- Megan E. Cooke
- Biofabrication Laboratory, Research Institute of McGill University Health Centres, McGill University, Montreal, QC, Canada
- Department of Surgery, McGill University, Montreal, QC, Canada
| | - Jose L. Ramirez-GarciaLuna
- Department of Surgery, McGill University, Montreal, QC, Canada
- Bone Engineering Labs, Injury, Repair & Recovery Program, Research Institute McGill University Health Centres, McGill University, Montreal, QC, Canada
| | - Karla Rangel-Berridi
- Department of Surgery, McGill University, Montreal, QC, Canada
- Bone Engineering Labs, Injury, Repair & Recovery Program, Research Institute McGill University Health Centres, McGill University, Montreal, QC, Canada
| | - Hyeree Park
- Department of Mining and Materials Engineering, McGill University, Montreal, QC, Canada
| | - Showan N. Nazhat
- Department of Mining and Materials Engineering, McGill University, Montreal, QC, Canada
| | - Michael H. Weber
- Biofabrication Laboratory, Research Institute of McGill University Health Centres, McGill University, Montreal, QC, Canada
- Department of Surgery, McGill University, Montreal, QC, Canada
| | - Janet E. Henderson
- Department of Surgery, McGill University, Montreal, QC, Canada
- Bone Engineering Labs, Injury, Repair & Recovery Program, Research Institute McGill University Health Centres, McGill University, Montreal, QC, Canada
| | - Derek H. Rosenzweig
- Biofabrication Laboratory, Research Institute of McGill University Health Centres, McGill University, Montreal, QC, Canada
- Bone Engineering Labs, Injury, Repair & Recovery Program, Research Institute McGill University Health Centres, McGill University, Montreal, QC, Canada
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Francis A. Biological evaluation of preceramic organosilicon polymers for various healthcare and biomedical engineering applications: A review. J Biomed Mater Res B Appl Biomater 2020; 109:744-764. [PMID: 33075186 DOI: 10.1002/jbm.b.34740] [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: 07/06/2020] [Revised: 09/17/2020] [Accepted: 09/30/2020] [Indexed: 01/17/2023]
Abstract
Preceramic organosilicon materials combining the properties of a polymer and an inorganic ceramic phase are of great interest to scientists working in biomedical sciences. The interdisciplinary nature of organosilicon polymers and their molecular structures, as well as their diversity of applications have resulted in an unprecedented range of devices and synergies cutting across unrelated fields in medicine and engineering. Organosilicon materials, especially the polysiloxanes, have a long history of industrial and medical uses in many versatile aspects as they can be easily fabricated into complex-shaped products using a wide variety of computer-aided or polymer manufacturing techniques. Thus far, intensive research activities have been mainly devoted to the processing of preceramic organosilicon polymers toward magnetic, electronic, structural, optical, and not biological applications. Herein we present innovative research studies and recent developments of preceramic organosilicon polymers at the interface with biological systems, displaying the versatility and multi-functionality of these materials. This article reviews recent research on preceramic organosilicon polymers and corresponding composites for bone tissue regeneration and medical engineering implants, focusing on three particular topics: (a) surface modifications to create tailorable and bioactive surfaces with high corrosion resistance and improved biological properties; (b) biological evaluations for specific applications, such as in glaucoma drainage devices, orthopedic implants, bone tissue regeneration, wound dressing, drug delivery systems, and antibacterial activity; and (c) in vitro and in vivo studies for cytotoxicity, genotoxicity, and cell viability. The interest in organosilicon materials stems from the fact that a vast array of these materials have complementary attributes that, when integrated appropriately with functional fillers and carefully controlled conditions, could be exploited either as polymeric Si-based composites or as organosilicon polymer-derived Si-based ceramic composites to tailor and optimize properties of the Si-based materials for various proposed applications.
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Affiliation(s)
- Adel Francis
- Department of Advanced Materials, Central Metallurgical R & D Institute (CMRDI), Helwan, Cairo, Egypt
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41
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Zhou X, Zhou G, Junka R, Chang N, Anwar A, Wang H, Yu X. Fabrication of polylactic acid (PLA)-based porous scaffold through the combination of traditional bio-fabrication and 3D printing technology for bone regeneration. Colloids Surf B Biointerfaces 2020; 197:111420. [PMID: 33113493 DOI: 10.1016/j.colsurfb.2020.111420] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 01/09/2023]
Abstract
Artificial bone grafts possess the advantages of good biodegradability, customizable dimensions, and sufficient mechanical properties, which can promote cell proliferation and differentiation in bone tissue regeneration. 3D printing is a delicate approach that endows the scaffolds with excellent controllability and repeatability when compared with conventional bio-fabrication methods. However, the limitation of printing resolution somehow makes it difficult to prepare bone defect substitution with high porosity and hierarchical construct. In this study, we utilized polylactic acid (PLA) as printing materials and developed a smart strategy to combine 3D printing technology with bio-fabrication methods. A porous planar scaffold was printed and then rolled up into a spiral structure with adjustable pore size and porosity. The topographic features and morphology of the artificial scaffolds were examined through stereomicroscope and SEM, respectively. The porous spiral scaffold presented good mechanical properties in a set of mechanical testing. Later, the human fetal osteoblasts (hFOB) were cultured on the porous spiral scaffold and its control groups for a total of 28 days. The MTS analysis, alkaline phosphatase (ALP) assay, and alizarin red S (ARS) staining were used to analyze the cell proliferation, osteogenic differentiation, and mineral deposition after a certain period of time. The results indicated that compared with the other two scaffolds, the porous spiral scaffold with larger surface area and better interconnections between internal porous networks could significantly improve the spatial cell compartment and promote cell growth and differentiation. The porous spiral scaffold may see versatile applications in large-volume bone defects regeneration.
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Affiliation(s)
- Xiaqing Zhou
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States; Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States
| | - Gan Zhou
- Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States
| | - Radoslaw Junka
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States
| | - Ningxiao Chang
- Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States
| | - Aneela Anwar
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States; Department of Basic Sciences and Humanities, University of Engineering and Technology, New Campus, GT Road, Lahore, 39020, Pakistan
| | - Haoyu Wang
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States; Department of Chemistry and Chemical Biology, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States
| | - Xiaojun Yu
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ, 07030, United States.
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Pitaru AA, Lacombe JG, Cooke ME, Beckman L, Steffen T, Weber MH, Martineau PA, Rosenzweig DH. Investigating Commercial Filaments for 3D Printing of Stiff and Elastic Constructs with Ligament-Like Mechanics. MICROMACHINES 2020; 11:mi11090846. [PMID: 32933035 PMCID: PMC7570386 DOI: 10.3390/mi11090846] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022]
Abstract
The current gold standard technique for treatment of anterior cruciate ligament (ACL) injury is reconstruction with autograft. These treatments have a relatively high failure and re-tear rate. To overcome this, tissue engineering and additive manufacturing are being used to explore the potential of 3D scaffolds as autograft substitutes. However, mechanically optimal polymers for this have yet to be identified. Here, we use 3D printing technology and various materials with the aim of fabricating constructs better matching the mechanical properties of the native ACL. A fused deposition modeling (FDM) 3D printer was used to microfabricate dog bone-shaped specimens from six different polymers—PLA, PETG, Lay FOMM 60, NinjaFlex, NinjaFlex-SemiFlex, and FlexiFil—at three different raster angles. The tensile mechanical properties of these polymers were determined from stress–strain curves. Our results indicate that no single material came close enough to successfully match reported mechanical properties of the native ACL. However, PLA and PETG had similar ultimate tensile strengths. Lay FOMM 60 displayed a percentage strain at failure similar to reported values for native ACL. Furthermore, raster angle had a significant impact on some mechanical properties for all of the materials except for FlexiFil. We therefore conclude that while none of these materials alone is optimal for mimicking ACL mechanical properties, there may be potential for creating a 3D-printed composite constructs to match ACL mechanical properties. Further investigations involving co-printing of stiff and elastomeric materials must be explored.
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Affiliation(s)
- Audrey A. Pitaru
- Division of Orthopaedic Surgery, McGill University, Montreal, QC H3A 1A1, Canada; (A.A.P.); (J.-G.L.); (M.E.K.); (M.H.W.); (P.A.M.)
- Department of Experimental Surgery, McGill University, Montreal, QC H3A 1A1, Canada
| | - Jean-Gabriel Lacombe
- Division of Orthopaedic Surgery, McGill University, Montreal, QC H3A 1A1, Canada; (A.A.P.); (J.-G.L.); (M.E.K.); (M.H.W.); (P.A.M.)
- Department of Experimental Surgery, McGill University, Montreal, QC H3A 1A1, Canada
| | - Megan E. Cooke
- Division of Orthopaedic Surgery, McGill University, Montreal, QC H3A 1A1, Canada; (A.A.P.); (J.-G.L.); (M.E.K.); (M.H.W.); (P.A.M.)
- Department of Experimental Surgery, McGill University, Montreal, QC H3A 1A1, Canada
| | - Lorne Beckman
- The Orthopaedics Research Lab, McGill University, Montreal, QC H3A 1A1, Canada; (L.B.); (T.S.)
| | - Thomas Steffen
- The Orthopaedics Research Lab, McGill University, Montreal, QC H3A 1A1, Canada; (L.B.); (T.S.)
| | - Michael H. Weber
- Division of Orthopaedic Surgery, McGill University, Montreal, QC H3A 1A1, Canada; (A.A.P.); (J.-G.L.); (M.E.K.); (M.H.W.); (P.A.M.)
- Department of Experimental Surgery, McGill University, Montreal, QC H3A 1A1, Canada
| | - Paul A. Martineau
- Division of Orthopaedic Surgery, McGill University, Montreal, QC H3A 1A1, Canada; (A.A.P.); (J.-G.L.); (M.E.K.); (M.H.W.); (P.A.M.)
- Department of Experimental Surgery, McGill University, Montreal, QC H3A 1A1, Canada
| | - Derek H. Rosenzweig
- Division of Orthopaedic Surgery, McGill University, Montreal, QC H3A 1A1, Canada; (A.A.P.); (J.-G.L.); (M.E.K.); (M.H.W.); (P.A.M.)
- Department of Experimental Surgery, McGill University, Montreal, QC H3A 1A1, Canada
- Injury, Repair and Recovery Program, Research Institute of McGill University Health Centre, Montreal, QC H3A 1A1, Canada
- Correspondence: ; Tel.: +01-514-934-1934 (ext. 43238)
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Yang J, An X, Liu L, Tang S, Cao H, Xu Q, Liu H. Cellulose, hemicellulose, lignin, and their derivatives as multi-components of bio-based feedstocks for 3D printing. Carbohydr Polym 2020; 250:116881. [PMID: 33049824 DOI: 10.1016/j.carbpol.2020.116881] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/31/2020] [Accepted: 08/01/2020] [Indexed: 01/01/2023]
Abstract
Three-dimensional (3D) printing, known as revolutionary and disruptive innovation in manufacturing technology, supports great opportunities to rapidly construct a wide range of tailored object geometries. Cellulose, hemicellulose, and lignin as the three most common natural polymers and main components of plant resources, possess great economical potential for bio-based products due to their attractive advantages. The integration of 3D printing technology involved with cellulose, hemicellulose and lignin as the major bio-based feedstock for high-performance 3D printed products has received great concern in the R&D areas. In this review, the aim is to shed light on a cutting-edge review on the most recent progress based on cellulose, hemicellulose and lignin, as well as their derivatives as multi-components of bio-feedstock for 3D printing, in which the applications, roles and functions of the plant-derived biomass for 3D printing are also highlighted. The challenges and perspectives for future work are provided, to underscore critical issues and opportunities.
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Affiliation(s)
- Jian Yang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China
| | - Xingye An
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China; Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3, Canada.
| | - Liqin Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China
| | - Shiyu Tang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China
| | - Haibing Cao
- Zhejiang Jing Xing Paper Joint Stock Co., Ltd., No. 1, Jing Xing Industry Zone, Jing Xing First Road, Caoqiao Street, Pinghu, Zhejiang Province, 314214, PR China
| | - Qingliang Xu
- Zhejiang Jing Xing Paper Joint Stock Co., Ltd., No. 1, Jing Xing Industry Zone, Jing Xing First Road, Caoqiao Street, Pinghu, Zhejiang Province, 314214, PR China
| | - Hongbin Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China.
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44
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Yao C, Lai Y, Chen Y, Cheng C. Bone Morphogenetic Protein‐2‐Activated 3D‐Printed Polylactic Acid Scaffolds to Promote Bone Regrowth and Repair. Macromol Biosci 2020; 20:e2000161. [DOI: 10.1002/mabi.202000161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/28/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Chun‐Hsu Yao
- Department of Biomedical Imaging and Radiological Science China Medical University Taichung Taiwan 404 Republic of China
- School of Chinese Medicine China Medical University Taichung Taiwan 404 Republic of China
- Biomaterials Translational Research Center China Medical University Hospital Taichung Taiwan 404 Republic of China
- Department of Biomedical Informatics Asia University Taichung Taiwan 413 Republic of China
| | - Yi‐Hui Lai
- Department of Biomedical Imaging and Radiological Science China Medical University Taichung Taiwan 404 Republic of China
| | - Yi‐Wen Chen
- Graduate Institute of Clinical Medical Science China Medical University Taichung Taiwan 404 Republic of China
- Graduate Institute of Biomedical Sciences China Medical University Taichung Taiwan 404 Republic of China
- 3D Printing Medical Research Institute Asia University Taichung Taiwan 413 Republic of China
| | - Cheng‐Hsin Cheng
- Department of Neurosurgery An Nan Hospital China Medical University Tainan Taiwan 709 Republic of China
- Graduate Institute of Medical Science Chang Jung Christian University Tainan Taiwan 711 Republic of China
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45
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Zhang F, King MW. Biodegradable Polymers as the Pivotal Player in the Design of Tissue Engineering Scaffolds. Adv Healthc Mater 2020; 9:e1901358. [PMID: 32424996 DOI: 10.1002/adhm.201901358] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 04/03/2020] [Indexed: 01/15/2023]
Abstract
Biodegradable polymers play a pivotal role in in situ tissue engineering. Utilizing various technologies, researchers have been able to fabricate 3D tissue engineering scaffolds using biodegradable polymers. They serve as temporary templates, providing physical and biochemical signals to the cells and determining the successful outcome of tissue remodeling. Furthermore, a biodegradable scaffold also presents the fourth dimension for tissue engineering, namely time. The properties of the biodegradable polymer change over time, presenting continuously changing features during the degradation process. These changes become more complicated when different materials are combined together to fabricate a composite or heterogeneous scaffold. This review undertakes a systematic analysis of the basic characteristics of biodegradable polymers and describe recent advances in making composite biodegradable scaffolds for in situ tissue engineering and regenerative medicine. The interaction between implanted biodegradable biomaterials and the in vivo environment are also discussed, including the properties and functional changes of the degradable scaffold, the local effect of degradation on the contiguous tissue and their evaluation using both in vitro and in vivo models.
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Affiliation(s)
- Fan Zhang
- Wilson College of TextilesNorth Carolina State University Raleigh NC 27606 USA
| | - Martin W. King
- Wilson College of TextilesNorth Carolina State University Raleigh NC 27606 USA
- College of TextilesDonghua University Songjiang District Shanghai 201620 China
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46
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Weems AC, Pérez-Madrigal MM, Arno MC, Dove AP. 3D Printing for the Clinic: Examining Contemporary Polymeric Biomaterials and Their Clinical Utility. Biomacromolecules 2020; 21:1037-1059. [PMID: 32058702 DOI: 10.1021/acs.biomac.9b01539] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The advent of additive manufacturing offered the potential to revolutionize clinical medicine, particularly with patient-specific implants across a range of tissue types. However, to date, there are very few examples of polymers being used for additive processes in clinical settings. The state of the art with regards to 3D printable polymeric materials being exploited to produce novel clinically relevant implants is discussed here. We focus on the recent advances in the development of implantable, polymeric medical devices and tissue scaffolds without diverging extensively into bioprinting. By introducing the major 3D printing techniques along with current advancements in biomaterials, we hope to provide insight into how these fields may continue to advance while simultaneously reviewing the ongoing work in the field.
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Affiliation(s)
- Andrew C Weems
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
| | | | - Maria C Arno
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
| | - Andrew P Dove
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
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Agüero A, Morcillo MDC, Quiles-Carrillo L, Balart R, Boronat T, Lascano D, Torres-Giner S, Fenollar O. Study of the Influence of the Reprocessing Cycles on the Final Properties of Polylactide Pieces Obtained by Injection Molding. Polymers (Basel) 2019; 11:E1908. [PMID: 31756897 PMCID: PMC6960523 DOI: 10.3390/polym11121908] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/14/2019] [Accepted: 11/18/2019] [Indexed: 01/21/2023] Open
Abstract
This research work aims to study the influence of the reprocessing cycles on the mechanical, thermal, and thermomechanical properties of polylactide (PLA). To this end, PLA was subjected to as many as six extrusion cycles and the resultant pellets were shaped into pieces by injection molding. Mechanical characterization revealed that the PLA pieces presented relatively similar properties up to the third reprocessing cycle, whereas further cycles induced an intense reduction in ductility and toughness. The effect of the reprocessing cycles was also studied by the changes in the melt fluidity, which showed a significant increase after four reprocessing cycles. An increase in the bio-polyester chain mobility was also attained with the number of the reprocessing cycles that subsequently favored an increase in crystallinity of PLA. A visual inspection indicated that PLA developed certain yellowing and the pieces also became less transparent with the increasing number of reprocessing cycles. Therefore, the obtained results showed that PLA suffers a slight degradation after one or two reprocessing cycles whereas performance impairment becomes more evident above the fourth reprocessing cycle. This finding suggests that the mechanical recycling of PLA for up to three cycles of extrusion and subsequent injection molding is technically feasible.
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Affiliation(s)
- Angel Agüero
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Maria del Carmen Morcillo
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Luis Quiles-Carrillo
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Rafael Balart
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Teodomiro Boronat
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Diego Lascano
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
- Escuela Politécnica Nacional, Quito 17-01-2759, Ecuador
| | - Sergio Torres-Giner
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
| | - Octavio Fenollar
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
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48
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Hydrogen Sulfide in Bone Tissue Regeneration and Repair: State of the Art and New Perspectives. Int J Mol Sci 2019; 20:ijms20205231. [PMID: 31652532 PMCID: PMC6834365 DOI: 10.3390/ijms20205231] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 12/12/2022] Open
Abstract
The importance of hydrogen sulfide (H2S) in the regulation of multiple physiological functions has been clearly recognized in the over 20 years since it was first identified as a novel gasotransmitter. In bone tissue H2S exerts a cytoprotective effect and promotes bone formation. Just recently, the scientific community has begun to appreciate its role as a therapeutic agent in bone pathologies. Pharmacological administration of H2S achieved encouraging results in preclinical studies in the treatment of systemic bone diseases, such as osteoporosis; however, a local delivery of H2S at sites of bone damage may provide additional opportunities of treatment. Here, we highlight how H2S stimulates multiple signaling pathways involved in various stages of the processes of bone repair. Moreover, we discuss how material science and chemistry have recently developed biomaterials and H2S-donors with improved features, laying the ground for the development of H2S-releasing devices for bone regenerative medicine. This review is intended to give a state-of-the-art description of the pro-regenerative properties of H2S, with a focus on bone tissue, and to discuss the potential of H2S-releasing scaffolds as a support for bone repair.
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Perić Kačarević Ž, Rider P, Alkildani S, Retnasingh S, Pejakić M, Schnettler R, Gosau M, Smeets R, Jung O, Barbeck M. An introduction to bone tissue engineering. Int J Artif Organs 2019; 43:69-86. [PMID: 31544576 DOI: 10.1177/0391398819876286] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bone tissue has the capability to regenerate itself; however, defects of a critical size prevent the bone from regenerating and require additional support. To aid regeneration, bone scaffolds created out of autologous or allograft bone can be used, yet these produce problems such as fast degradation rates, reduced bioactivity, donor site morbidity or the risk of pathogen transmission. The development of bone tissue engineering has been used to create functional alternatives to regenerate bone. This can be achieved by producing bone tissue scaffolds that induce osteoconduction and integration, provide mechanical stability, and either integrate into the bone structure or degrade and are excreted by the body. A range of different biomaterials have been used to this end, each with their own advantages and disadvantages. This review will introduce the requirements of bone tissue engineering, beginning with the regeneration process of bone before exploring the requirements of bone tissue scaffolds. Aspects covered include the manufacturing process as well as the different materials used and the incorporation of bioactive molecules, growth factors and cells.
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Affiliation(s)
- Željka Perić Kačarević
- Department of Anatomy Histology, Embryology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Patrick Rider
- Research and Development, botiss biomaterials GmbH, Berlin, Germany
| | - Said Alkildani
- Department of Biomedical Engineering, School of Applied Medical Sciences, German Jordanian University, Amman, Jordan
| | - Sujith Retnasingh
- Institute for Environmental Toxicology, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Marija Pejakić
- Department of Dental Medicine, Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Reinhard Schnettler
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Gosau
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ole Jung
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mike Barbeck
- Research and Development, botiss biomaterials GmbH, Berlin, Germany.,Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,BerlinAnalytix GmbH, Berlin, Germany
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50
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Akoury E, Ramirez Garcia Luna AS, Ahangar P, Gao X, Zolotarov P, Weber MH, Rosenzweig DH. Anti-Tumor Effects of Low Dose Zoledronate on Lung Cancer-Induced Spine Metastasis. J Clin Med 2019; 8:E1212. [PMID: 31416169 PMCID: PMC6722631 DOI: 10.3390/jcm8081212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/06/2019] [Accepted: 08/10/2019] [Indexed: 02/06/2023] Open
Abstract
Zoledronate (Zol) is an anti-resorptive/tumoral agent used for the treatment of many cancers including spinal bone metastasis. High systemic administration of a single dose is now the standard clinical care, yet it has been associated with several side effects. Here, we aimed to evaluate the effects of lower doses Zol on lung cancer and lung cancer-induced bone metastasis cells over a longer time period. Human lung cancer (HCC827) and three bone metastases secondary to lung cancer (BML1, BML3 and BML4) cells were treated with Zol at 1, 3 and 10 µM for 7 days and then assessed for cell proliferation, migration, invasion and apoptosis. Low Zol treatment significantly decreased cell proliferation (1, 3 and 10 µM), migration (3 and 10 µM) and invasion (10 µM) while increasing apoptosis (10 µM) in lung cancer and metastatic cells. Our data exploits the potential of using low doses Zol for longer treatment periods and reinforces this approach as a new therapeutic regimen to impede the development of metastatic bone cancer while limiting severe side effects following high doses of systemic drug treatment.
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Affiliation(s)
- Elie Akoury
- Department of Surgery, Division of Orthopaedic Surgery, McGill University and the Research Institute of the McGill University Health Centre, Injury Repair & Recovery program, Montreal, QC H3G 1A4, Canada
| | - Ana Sofia Ramirez Garcia Luna
- Department of Surgery, Division of Orthopaedic Surgery, McGill University and the Research Institute of the McGill University Health Centre, Injury Repair & Recovery program, Montreal, QC H3G 1A4, Canada
- Medical Faculty Mannheim, Heidelberg University, D-68167 Mannheim, Germany
| | - Pouyan Ahangar
- Department of Surgery, Division of Orthopaedic Surgery, McGill University and the Research Institute of the McGill University Health Centre, Injury Repair & Recovery program, Montreal, QC H3G 1A4, Canada
| | - Xiaoya Gao
- Department of Surgery, Division of Orthopaedic Surgery, McGill University and the Research Institute of the McGill University Health Centre, Injury Repair & Recovery program, Montreal, QC H3G 1A4, Canada
| | - Pylyp Zolotarov
- Department of Pathology, McGill University Health Centre, Montreal, QC H4A 3J1, Canada
| | - Michael H Weber
- Department of Surgery, Division of Orthopaedic Surgery, McGill University and the Research Institute of the McGill University Health Centre, Injury Repair & Recovery program, Montreal, QC H3G 1A4, Canada
| | - Derek H Rosenzweig
- Department of Surgery, Division of Orthopaedic Surgery, McGill University and the Research Institute of the McGill University Health Centre, Injury Repair & Recovery program, Montreal, QC H3G 1A4, Canada.
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