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Kokorev OV, Marchenko ES, Khlusov IA, Volinsky AA, Yasenchuk YF, Monogenov AN. Engineered Fibrous NiTi Scaffolds with Cultured Hepatocytes for Liver Regeneration in Rats. ACS Biomater Sci Eng 2023; 9:1558-1569. [PMID: 36802492 DOI: 10.1021/acsbiomaterials.2c01268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
At present, the use of alternative systems to replenish the lost functions of hepatic metabolism and partial replacement of liver organ failure is relevant, due to an increase in the incidence of various liver disorders, insufficiency, and cost of organs for transplantation, as well as the high cost of using the artificial liver systems. The development of low-cost intracorporeal systems for maintaining hepatic metabolism using tissue engineering, as a bridge before liver transplantation or completely replacing liver function, deserves special attention. In vivo applications of intracorporeal fibrous nickel-titanium scaffolds (FNTSs) with cultured hepatocytes are described. Hepatocytes cultured in FNTSs are superior to their injections in terms of liver function, survival time, and recovery in a CCl4-induced cirrhosis rats' model. 232 animals were divided into 5 groups: control, CCl4-induced cirrhosis, CCl4-induced cirrhosis followed by implantation of cell-free FNTSs (sham surgery), CCl4-induced cirrhosis followed by infusion of hepatocytes (2 mL, 107 cells/mL), and CCl4-induced cirrhosis followed by FNTS implantation with hepatocytes. Restoration of hepatocyte function in the FNTS implantation with the hepatocytes group was accompanied by a significant decrease in the level of aspartate aminotransferase (AsAT) in blood serum compared to the cirrhosis group. A significant decrease in the level of AsAT was noted after 15 days in the infused hepatocytes group. However, on the 30th day, the AsAT level increased and was close to the cirrhosis group due to the short-term effect after the introduction of hepatocytes without a scaffold. The changes in alanine aminotransferase (AlAT), alkaline phosphatase (AlP), total and direct bilirubin, serum protein, triacylglycerol, lactate, albumin, and lipoproteins were similar to those in AsAT. The survival time of animals was significantly longer in the FNTS implantation with hepatocytes group. The obtained results showed the scaffolds' ability to support hepatocellular metabolism. The development of hepatocytes in FNTS was studied in vivo using 12 animals using scanning electron microscopy. Hepatocytes demonstrated good adhesion to the scaffold wireframe and survival in allogeneic conditions. Mature tissue, including cellular and fibrous, filled the scaffold space by 98% in 28 days. The study shows the extent to which an implantable "auxiliary liver" compensates for the lack of liver function without replacement in rats.
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Affiliation(s)
- Oleg V Kokorev
- National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia
- Siberian State Medical University, 2 Moskovsky Trakt, Tomsk 634050, Russia
| | | | - Igor A Khlusov
- Siberian State Medical University, 2 Moskovsky Trakt, Tomsk 634050, Russia
| | - Alex A Volinsky
- National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia
- Department of Mechanical Engineering, University of South Florida, 4202 E. Fowler Ave. ENG030, Tampa, Florida 33620, United States
| | - Yuri F Yasenchuk
- National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia
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2
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Three-dimensional gradient porous polymeric composites for osteochondral regeneration. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02989-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mao Z, Bai J, Jin X, Mao W, Dong Y. Construction of a multifunctional 3D nanofiber aerogel loaded with ZnO for wound healing. Colloids Surf B Biointerfaces 2021; 208:112070. [PMID: 34564038 DOI: 10.1016/j.colsurfb.2021.112070] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 10/24/2022]
Abstract
Bacterial infection and severe wound inflammation are two primary harmful problems that bring harm to the human body and may cause death when a large-scale skin defect occurs. Thus, developing an effective and quick wound healing strategy for curing skin damage and trauma is vital. This study has developed a multifunctional PLA/gelatin/ZnO nanofiber aerogel with a three-dimensional structure through electrospinning and freeze-drying technology for wound healing. It has validated that the nanofiber aerogel has an excellent antibacterial property and biocompatibility. Meanwhile, benefiting from its three-dimensional nanofiber structure, the PLA/gelatin/ZnO nanofiber aerogel possesses good water absorption and air permeability. In vivo experiments have determined that the PLA/gel/ZnO nanofiber aerogel scaffolds effectively promote skin infection's wound healing and enhance angiogenesis that is practical with increasing ZnO concentration.
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Affiliation(s)
- Zhenyang Mao
- Department of Orthopedics Trauma, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Jiarun Bai
- Department of Orthopedics Trauma, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Xiangyun Jin
- Department of Orthopedics Trauma, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Wenwei Mao
- School of Pharmacy, Shanghai Jiao Tong University, China.
| | - Yuqi Dong
- Department of Orthopedics Trauma, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China.
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Laird NZ, Acri TM, Chakka JL, Quarterman JC, Malkawi WI, Elangovan S, Salem AK. Applications of nanotechnology in 3D printed tissue engineering scaffolds. Eur J Pharm Biopharm 2021; 161:15-28. [PMID: 33549706 PMCID: PMC7969465 DOI: 10.1016/j.ejpb.2021.01.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/07/2021] [Accepted: 01/26/2021] [Indexed: 02/08/2023]
Abstract
Tissue engineering is an interdisciplinary field that aims to combine life sciences and engineering to create therapies that regenerate functional tissue. Early work in tissue engineering mostly used materials as inert scaffolding structures, but research has shown that constructing scaffolds from biologically active materials can help with regeneration by enabling cell-scaffold interactions or release of factors that aid in regeneration. Three-dimensional (3D) printing is a promising technique for the fabrication of structurally intricate and compositionally complex tissue engineering scaffolds. Such scaffolds can be functionalized with techniques developed by nanotechnology research to further enhance their ability to stimulate regeneration and interact with cells. Nanotechnological components, nanoscale textures, and microscale/nanoscale printing can all be incorporated into the manufacture of 3D printed scaffolds. This review discusses recent advancements in the merging of nanotechnology with 3D printed tissue engineering scaffolds, with a focus on applications of nanoscale components, nanoscale texture, and innovative printing techniques and the effects observed in vitro and in vivo.
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Affiliation(s)
- Noah Z Laird
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Timothy M Acri
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Jaidev L Chakka
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Juliana C Quarterman
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Walla I Malkawi
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Satheesh Elangovan
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA; Department of Periodontics, College of Dentistry and Dental Clinics, University of Iowa, Iowa City, IA, USA
| | - Aliasger K Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA; Department of Chemical and Biochemical Engineering, College of Engineering, University of Iowa, Iowa City, IA, USA.
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Myakinin A, Turlybekuly A, Pogrebnjak A, Mirek A, Bechelany M, Liubchak I, Oleshko O, Husak Y, Korniienko V, Leśniak-Ziółkowska K, Dogadkin D, Banasiuk R, Moskalenko R, Pogorielov M, Simka W. In vitro evaluation of electrochemically bioactivated Ti6Al4V 3D porous scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111870. [PMID: 33579496 DOI: 10.1016/j.msec.2021.111870] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/28/2020] [Accepted: 01/03/2021] [Indexed: 12/21/2022]
Abstract
Triply periodic minimal surfaces (TPMS) are known for their advanced mechanical properties and are wrinkle-free with a smooth local topology. These surfaces provide suitable conditions for cell attachment and proliferation. In this study, the in vitro osteoinductive and antibacterial properties of scaffolds with different minimal pore diameters and architectures were investigated. For the first time, scaffolds with TPMS architecture were treated electrochemically by plasma electrolytic oxidation (PEO) with and without silver nanoparticles (AgNPs) to enhance the surface bioactivity. It was found that the scaffold architecture had a greater impact on the osteoblast cell activity than the pore size. Through control of the architecture type, the collagen production by osteoblast cells increased by 18.9% and by 43.0% in the case of additional surface PEO bioactivation. The manufactured scaffolds demonstrated an extremely low quasi-elastic modulus (comparable with trabecular and cortical bone), which was 5-10 times lower than that of bulk titanium (6.4-11.4 GPa vs 100-105 GPa). The AgNPs provided antibacterial properties against both gram-positive and gram-negative bacteria and had no significant impact on the osteoblast cell growth. Complex experimental results show the in vitro effectiveness of the PEO-modified TPMS architecture, which could positively impact the clinical applications of porous bioactive implants.
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Affiliation(s)
- Alexandr Myakinin
- D. Serikbayev East Kazakhstan State Technical University, F02K6B2 Oskemen, Kazakhstan
| | | | - Alexander Pogrebnjak
- Sumy State University, Medical Institute, 40018 Sumy, Ukraine; al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - Adam Mirek
- Institut Européen des Membranes, IEM, UMR-5635, University Montpellier, CNRS, ENSCM, 34095 Montpellier CEDEX 5, France; Nalecz Institute of Biocybernetics and Biomedical Engineering PAS, 02-109 Warsaw, Poland
| | - Mikhael Bechelany
- Institut Européen des Membranes, IEM, UMR-5635, University Montpellier, CNRS, ENSCM, 34095 Montpellier CEDEX 5, France
| | - Iryna Liubchak
- Sumy State University, Medical Institute, 40018 Sumy, Ukraine
| | | | - Yevheniia Husak
- Sumy State University, Medical Institute, 40018 Sumy, Ukraine
| | | | | | - Dmitry Dogadkin
- D. Serikbayev East Kazakhstan State Technical University, F02K6B2 Oskemen, Kazakhstan
| | - Rafał Banasiuk
- NanoWave, 02-676 Warsaw, Poland; Institute of Biotechnology and Molecular Medicine, 80-172 Gdansk, Poland
| | | | - Maksym Pogorielov
- Sumy State University, Medical Institute, 40018 Sumy, Ukraine; NanoPrime, 32-900 Dębica, Poland
| | - Wojciech Simka
- Silesian University of Technology, Faculty of Chemistry, 44-100 Gliwice, Poland; NanoPrime, 32-900 Dębica, Poland.
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Chansoria P, Schuchard K, Shirwaiker RA. Process hybridization schemes for multiscale engineered tissue biofabrication. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 13:e1673. [PMID: 33084240 DOI: 10.1002/wnan.1673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022]
Abstract
Recapitulation of multiscale structure-function properties of cells, cell-secreted extracellular matrix, and 3D architecture of natural tissues is central to engineering biomimetic tissue substitutes. Toward achieving biomimicry, a variety of biofabrication processes have been developed, which can be broadly classified into five categories-fiber and fabric formation, additive manufacturing, surface modification, remote fields, and other notable processes-each with specific advantages and limitations. The majority of biofabrication literature has focused on using a single process at a time, which often limits the range of tissues that could be created with relevant features that span nano to macro scales. With multiscale biomimicry as the goal, development of hybrid biofabrication strategies that synergistically unite two or more processes to complement each other's strengths and limitations has been steadily increasing. This work discusses recent literature in this domain and attempts to equip the reader with the understanding of selecting appropriate processes that can harmonize toward creating engineered tissues with appropriate multiscale structure-function properties. Opportunities related to various hybridization schemes and a future outlook on scale-up biofabrication have also been discussed. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement.
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Affiliation(s)
- Parth Chansoria
- Edward P. Fitts Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Karl Schuchard
- Edward P. Fitts Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Rohan A Shirwaiker
- Edward P. Fitts Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA.,Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina at Chapel Hill, Raleigh, North Carolina, USA
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7
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Abstract
Keratin-based biomaterials represent an attractive opportunity in the fields of wound healing and tissue regeneration, not only for their chemical and physical properties, but also for their ability to act as a delivery system for a variety of payloads. Importantly, keratins are the only natural biomaterial that is not targeted by specific tissue turnover-related enzymes, giving it potential stability advantages and greater control over degradation after implantation. However, in-situ polymerization chemistry in some keratin systems are not compatible with cells, and incorporation within constructs such as hydrogels may lead to hypoxia and cell death. To address these challenges, we envisioned a pre-formed keratin microparticle on which cells could be seeded, while other payloads (e.g. drugs, growth factors or other biologic compounds) could be contained within, although studies investigating the potential partitioning between phases during emulsion polymerization would need to be conducted. This study employs well-established water-in-oil emulsion procedures as well as a suspension culture method to load keratin-based microparticles with bone marrow-derived mesenchymal stem cells. Fabricated microparticles were characterized for size, porosity and surface structure and further analyzed to investigate their ability to form gels upon hydration. The suspension culture technique was validated based on the ability for loaded cells to maintain their viability and express actin and vinculin proteins, which are key indicators of cell attachment and growth. Maintenance of expression of markers associated with cell plasticity was also investigated. As a comparative model, a collagen-coated microparticle (Sigma) of similar size was used. Results showed that an oxidized form of keratin ("keratose" or "KOS") formed unique microparticle structures of various size that appeared to contain a fibrous sub-structure. Cell adhesion and viability was greater on keratin microparticles compared to collagen-coated microparticles, while marker expression was retained on both.
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Affiliation(s)
- Marc Thompson
- US Army Institute of Surgical Research, Burn and Soft Tissue Research Division, Fort Sam Houston, TX, USA
| | - Aaron Giuffre
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Claire McClenny
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Mark Van Dyke
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
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Buchroithner B, Hartmann D, Mayr S, Oh YJ, Sivun D, Karner A, Buchegger B, Griesser T, Hinterdorfer P, Klar TA, Jacak J. 3D multiphoton lithography using biocompatible polymers with specific mechanical properties. NANOSCALE ADVANCES 2020; 2:2422-2428. [PMID: 36133392 PMCID: PMC9418552 DOI: 10.1039/d0na00154f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/07/2020] [Indexed: 05/20/2023]
Abstract
The fabrication of two- and three-dimensional scaffolds mimicking the extracellular matrix and providing cell stimulation is of high importance in biology and material science. We show two new, biocompatible polymers, which can be 3D structured via multiphoton lithography, and determine their mechanical properties. Atomic force microscopy analysis of structures with sub-micron feature sizes reveals Young's modulus values in the 100 MPa range. Assessment of biocompatibility of the new resins was done by cultivating human umbilical vein endothelial cells on two-dimensionally structured substrates for four days. The cell density and presence of apoptotic cells has been quantified.
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Affiliation(s)
- Boris Buchroithner
- University of Applied Sciences Upper Austria, School of Medical Engineering and Applied Social Sciences Garnison Str. 21 4020 Linz Austria
| | - Delara Hartmann
- Chair of Chemistry of Polymeric Materials, Montanuniversitaet Leoben Otto-Glöckel Str. 2 8700 Leoben Austria
| | - Sandra Mayr
- University of Applied Sciences Upper Austria, School of Medical Engineering and Applied Social Sciences Garnison Str. 21 4020 Linz Austria
| | - Yoo Jin Oh
- Institute of Biophysics, Johannes Kepler University Linz Gruberstr. 40 4020 Linz Austria
| | - Dmitry Sivun
- Institute of Applied Physics and Linz Institute of Technology LIT, Johannes Kepler University Linz Altenberger Str. 69 4040 Linz Austria
| | - Andreas Karner
- University of Applied Sciences Upper Austria, School of Medical Engineering and Applied Social Sciences Garnison Str. 21 4020 Linz Austria
| | - Bianca Buchegger
- Institute of Applied Physics and Linz Institute of Technology LIT, Johannes Kepler University Linz Altenberger Str. 69 4040 Linz Austria
| | - Thomas Griesser
- Chair of Chemistry of Polymeric Materials, Montanuniversitaet Leoben Otto-Glöckel Str. 2 8700 Leoben Austria
| | - Peter Hinterdorfer
- Institute of Biophysics, Johannes Kepler University Linz Gruberstr. 40 4020 Linz Austria
| | - Thomas A Klar
- Institute of Applied Physics and Linz Institute of Technology LIT, Johannes Kepler University Linz Altenberger Str. 69 4040 Linz Austria
| | - Jaroslaw Jacak
- University of Applied Sciences Upper Austria, School of Medical Engineering and Applied Social Sciences Garnison Str. 21 4020 Linz Austria
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9
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Material-Dependent Formation and Degradation of Bone Matrix-Comparison of Two Cryogels. Bioengineering (Basel) 2020; 7:bioengineering7020052. [PMID: 32517006 PMCID: PMC7378764 DOI: 10.3390/bioengineering7020052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 01/19/2023] Open
Abstract
Cryogels represent ideal carriers for bone tissue engineering. We recently described the osteogenic potential of cryogels with different protein additives, e.g., platelet-rich plasma (PRP). However, these scaffolds raised concerns as different toxic substances are required for their preparation. Therefore, we developed another gelatin (GEL)-based cryogel. This study aimed to compare the two scaffolds regarding their physical characteristics and their influence on osteogenic and osteoclastic cells. Compared to the PRP scaffolds, GEL scaffolds had both larger pores and thicker walls, resulting in a lower connective density. PRP scaffolds, with crystalized calcium phosphates on the surface, were significantly stiffer but less mineralized than GEL scaffolds with hydroxyapatite incorporated within the matrix. The GEL scaffolds favored adherence and proliferation of the osteogenic SCP-1 and SaOS-2 cells. Macrophage colony-stimulating factor (M-CSF) and osteoprotegerin (OPG) levels seemed to be induced by GEL scaffolds. Levels of other osteoblast and osteoclast markers were comparable between the two scaffolds. After 14 days, mineral content and stiffness of the cryogels were increased by SCP-1 and SaOS-2 cells, especially of PRP scaffolds. THP-1 cell-derived osteoclastic cells only reduced mineral content and stiffness of PRP cryogels. In summary, both scaffolds present powerful advantages; however, the possibility to altered mineral content and stiffness may be decisive when it comes to using PRP or GEL scaffolds for bone tissue engineering.
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Tamjid E, Bohlouli M, Mohammadi S, Alipour H, Nikkhah M. Sustainable drug release from highly porous and architecturally engineered composite scaffolds prepared by 3D printing. J Biomed Mater Res A 2020; 108:1426-1438. [PMID: 32134569 DOI: 10.1002/jbm.a.36914] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/17/2020] [Accepted: 02/24/2020] [Indexed: 11/06/2022]
Abstract
Additive manufacturing techniques have evolved novel opportunities for the fabrication of highly porous composite scaffolds with well-controlled and interconnected pore structures which is notably important for tissue engineering. In this work, poly (ε-caprolactone) (PCL)-based composite scaffolds (average pore diameter of 450 μm and strut thickness of 400 μm) reinforced with 10 vol% bioactive glass particles (BG; ∼6 μm) or TiO2 nanoparticles (∼21 nm), containing different concentrations of tetracycline hydrochloride (TCH) as an antimicrobial agent, were prepared by 3D printing. In order to investigate the effect of fabrication process and scaffold geometry on the biocompatibility, drug release kinetics, and antibacterial activity, polymer and composite films (2D structures) were also prepared by solvent casting method. We demonstrate that even without any additional coating layer, sustainable release can be attained on highly porous scaffolds prepared by 3D printing due to chemical interactions between functional groups of TCH and the bioactive particles. Herein, the effect of TiO2 nanoparticles on the release rate is substantially more pronounced than BG particles. Nevertheless, agar well-diffusion and MTT assays determine better cellular viability and higher antibacterial effect for PCL/BG composite. Although all the drug-eluting composite scaffolds exhibit acceptable hemocompatibility, in vitro cellular and bacterial studies also determine that the maximum amount of TCH that can inhibit gram positive (Staphylococcus aureus) and gram negative (Escherichia coli) bacteria without cytotoxicity effect (≥95% viability) is 0.57 mg/ml. These findings may pave the way for designing structurally engineered composite scaffolds with sustainable drug release profile by additive manufacturing techniques for tissue engineering applications.
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Affiliation(s)
- Elnaz Tamjid
- Department of Nanobiotechnology, Tarbiat Modares University, Tehran, Iran
| | - Mahsa Bohlouli
- Department of Biomaterials, Faculty of Interdisciplinary Science and Technology, Tarbiat Modares University, Tehran, Iran
| | - Soheila Mohammadi
- Department of Nanobiotechnology, Tarbiat Modares University, Tehran, Iran
| | - Hossein Alipour
- Department of Nanobiotechnology, Tarbiat Modares University, Tehran, Iran
| | - Maryam Nikkhah
- Department of Nanobiotechnology, Tarbiat Modares University, Tehran, Iran
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Swetha S, Lavanya K, Sruthi R, Selvamurugan N. An insight into cell-laden 3D-printed constructs for bone tissue engineering. J Mater Chem B 2020; 8:9836-9862. [DOI: 10.1039/d0tb02019b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, we have spotlighted various combinations of bioinks to optimize the biofabrication of 3D bone constructs.
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Affiliation(s)
- S. Swetha
- Department of Biotechnology, College of Engineering and Technology
- SRM Institute of Science and Technology
- Kattankulathur 603 203
- India
| | - K. Lavanya
- Department of Biotechnology, College of Engineering and Technology
- SRM Institute of Science and Technology
- Kattankulathur 603 203
- India
| | - R. Sruthi
- Department of Biotechnology, College of Engineering and Technology
- SRM Institute of Science and Technology
- Kattankulathur 603 203
- India
| | - N. Selvamurugan
- Department of Biotechnology, College of Engineering and Technology
- SRM Institute of Science and Technology
- Kattankulathur 603 203
- India
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12
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Callens SJP, Uyttendaele RJC, Fratila-Apachitei LE, Zadpoor AA. Substrate curvature as a cue to guide spatiotemporal cell and tissue organization. Biomaterials 2019; 232:119739. [PMID: 31911284 DOI: 10.1016/j.biomaterials.2019.119739] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/23/2019] [Accepted: 12/25/2019] [Indexed: 12/11/2022]
Abstract
Recent evidence clearly shows that cells respond to various physical cues in their environments, guiding many cellular processes and tissue morphogenesis, pathology, and repair. One aspect that is gaining significant traction is the role of local geometry as an extracellular cue. Elucidating how geometry affects cell and tissue behavior is, indeed, crucial to design artificial scaffolds and understand tissue growth and remodeling. Perhaps the most fundamental descriptor of local geometry is surface curvature, and a growing body of evidence confirms that surface curvature affects the spatiotemporal organization of cells and tissues. While well-defined in differential geometry, curvature remains somewhat ambiguously treated in biological studies. Here, we provide a more formal curvature framework, based on the notions of mean and Gaussian curvature, and summarize the available evidence on curvature guidance at the cell and tissue levels. We discuss the involved mechanisms, highlighting the interplay between tensile forces and substrate curvature that forms the foundation of curvature guidance. Moreover, we show that relatively simple computational models, based on some application of curvature flow, are able to capture experimental tissue growth remarkably well. Since curvature guidance principles could be leveraged for tissue regeneration, the implications for geometrical scaffold design are also discussed. Finally, perspectives on future research opportunities are provided.
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Affiliation(s)
- Sebastien J P Callens
- Department of Biomechanical Engineering, Delft University of Technology (TU Delft), Mekelweg 2, Delft, 2628CD, the Netherlands.
| | - Rafael J C Uyttendaele
- Department of Biomechanical Engineering, Delft University of Technology (TU Delft), Mekelweg 2, Delft, 2628CD, the Netherlands
| | - Lidy E Fratila-Apachitei
- Department of Biomechanical Engineering, Delft University of Technology (TU Delft), Mekelweg 2, Delft, 2628CD, the Netherlands
| | - Amir A Zadpoor
- Department of Biomechanical Engineering, Delft University of Technology (TU Delft), Mekelweg 2, Delft, 2628CD, the Netherlands
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13
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Häussling V, Deninger S, Vidoni L, Rinderknecht H, Ruoß M, Arnscheidt C, Athanasopulu K, Kemkemer R, Nussler AK, Ehnert S. Impact of Four Protein Additives in Cryogels on Osteogenic Differentiation of Adipose-Derived Mesenchymal Stem Cells. Bioengineering (Basel) 2019; 6:E67. [PMID: 31394780 PMCID: PMC6784125 DOI: 10.3390/bioengineering6030067] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 07/30/2019] [Accepted: 08/05/2019] [Indexed: 12/21/2022] Open
Abstract
Human adipose-derived mesenchymal stem/stromal cells (Ad-MSCs) have great potential for bone tissue engineering. Cryogels, mimicking the three-dimensional structure of spongy bone, represent ideal carriers for these cells. We developed poly(2-hydroxyethyl methacrylate) cryogels, containing hydroxyapatite to mimic inorganic bone matrix. Cryogels were additionally supplemented with different types of proteins, namely collagen (Coll), platelet-rich plasma (PRP), immune cells-conditioned medium (CM), and RGD peptides (RGD). The different protein components did not affect scaffolds' porosity or water-uptake capacity, but altered pore size and stiffness. Stiffness was highest in scaffolds with PRP (82.3 kPa), followed by Coll (55.3 kPa), CM (45.6 kPa), and RGD (32.8 kPa). Scaffolds with PRP, CM, and Coll had the largest pore diameters (~60 µm). Ad-MSCs were osteogenically differentiated on these scaffolds for 14 days. Cell attachment and survival rates were comparable for all four scaffolds. Runx2 and osteocalcin levels only increased in Ad-MSCs on Coll, PRP and CM cryogels. Osterix levels increased slightly in Ad-MSCs differentiated on Coll and PRP cryogels. With differentiation alkaline phosphatase activity decreased under all four conditions. In summary, besides Coll cryogel our PRP cryogel constitutes as an especially suitable carrier for bone tissue engineering. This is of special interest, as this scaffold can be generated with patients' PRP.
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Affiliation(s)
- Victor Häussling
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Sebastian Deninger
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Laura Vidoni
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Helen Rinderknecht
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Marc Ruoß
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Christian Arnscheidt
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Kiriaki Athanasopulu
- Department of Applied Chemistry Reutlingen University, 72762 Reutlingen, Germany
| | - Ralf Kemkemer
- Department of Applied Chemistry Reutlingen University, 72762 Reutlingen, Germany
| | - Andreas K Nussler
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany.
| | - Sabrina Ehnert
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
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Fabrication of hierarchically porous silk fibroin-bioactive glass composite scaffold via indirect 3D printing: Effect of particle size on physico-mechanical properties and in vitro cellular behavior. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109688. [PMID: 31349405 DOI: 10.1016/j.msec.2019.04.067] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/16/2019] [Accepted: 04/21/2019] [Indexed: 02/07/2023]
Abstract
In order to regenerate bone defects, bioactive hierarchically scaffolds play a key role due to their multilevel porous structure, high surface area, enhanced nutrient transport and diffusion. In this study, novel hierarchically porous silk fibroin (SF) and silk fibroin-bioactive glass (SF-BG) composite were fabricated with controlled architecture and interconnected structure, by combining indirect three-dimensional (3D) inkjet printing and freeze-drying methods. Further, the effect of 45S5 Bioactive glass particles of different sizes (<100 nm and 6 μm) on mechanical strength and cell behavior was investigated. The results demonstrated that the hierarchical structure in this scaffold was composed of two levels of pores in the order of 500-600 μm and 10-50 μm. The prepared SF-BG composite scaffolds utilized by nano and micro particles possessed mechanical properties with a compressive strength of 0.94 and 1.2 MPa, respectively, in dry conditions. In a wet condition, the hierarchically porous scaffolds did not exhibit any fluctuation after compression load cell and were incredibly flexible, with excellent mechanical stability. The SF-BG composite scaffold with nanoparticles presented a significant 50% increase in attachment of human bone marrow stem cells in comparison with SF and SF-BG scaffold with microparticles. Moreover, SF-BG scaffolds promoted alkaline phosphatase activity as compared to SF scaffolds without BG particles on day 14. In brief, the 3D porous silk fibroin-based composites containing BG nanoparticles with excellent mechanical properties are promising scaffolds for bone tissue regeneration in high load-bearing applications.
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15
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Past, Present, and Future of Regeneration Therapy in Oral and Periodontal Tissue: A Review. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9061046] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chronic periodontitis is the most common disease which induces oral tissue destruction. The goal of periodontal treatment is to reduce inflammation and regenerate the defects. As the structure of periodontium is composed of four types of different tissue (cementum, alveolar bone periodontal ligament, and gingiva), the regeneration should allow different cell proliferation in the separated spaces. Guided tissue regeneration (GTR) and guided bone regeneration (GBR) were introduced to prevent epithelial growth into the alveolar bone space. In the past, non-absorbable membranes with basic functions such as space maintenance were used with bone graft materials. Due to several limitations of the non-absorbable membranes, membranes of the second and third generation equipped with controlled absorbability, and a functional layer releasing growth factors or antimicrobials were introduced. Moreover, tissue engineering using biomaterials enabled faster and more stable tissue regeneration. The scaffold with three-dimensional structures manufactured by computer-aided design and manufacturing (CAD/CAM) showed high biocompatibility, and promoted cell infiltration and revascularization. In the future, using the cell sheath, pre-vascularizing and bioprinting techniques will be applied to the membrane to mimic the original tissue itself. The aim of the review was not only to understand the past and the present trends of GTR and GBR, but also to be used as a guide for a proper future of regeneration therapy in the oral region.
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16
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Advances in additive manufacturing for bone tissue engineering scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:631-644. [PMID: 30948100 DOI: 10.1016/j.msec.2019.03.037] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 03/07/2019] [Accepted: 03/10/2019] [Indexed: 02/06/2023]
Abstract
This article reviews the current state of the art of additive manufacturing techniques for the production of bone tissue engineering (BTE) scaffolds. The most well-known of these techniques include: stereolithography, selective laser sintering, fused deposition modelling and three-dimensional printing. This review analyses in detail the basic physical principles and main applications of these techniques and presents a list of biomaterials for BTE applications, including commercial trademarks. It also describes and compares the main advantages and disadvantages and explains the highlights of each additive manufacturing technique and their evolution. Finally, is discusses both their capabilities and limitations and proposes potential strategies to improve this field.
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17
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Shi R, Ye J, Li W, Zhang J, Li J, Wu C, Xue J, Zhang L. Infection-responsive electrospun nanofiber mat for antibacterial guided tissue regeneration membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:523-534. [PMID: 30948089 DOI: 10.1016/j.msec.2019.03.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/08/2019] [Accepted: 03/10/2019] [Indexed: 01/18/2023]
Abstract
The release of anti-infection drugs in a targeted and efficient manner in response to the attack time and degree of severity of infection is a requirement of new generation implants. Herein, we design an infection-responsive guided tissue regeneration (GTR)/guided bone regeneration (GBR) membrane based on electrospun nanofibers. Polycaprolactone (PCL) nanofiber mats are coated with polydopamine to endow hydroxyl groups on the surface and then functionalized with siloxane to introduce amino groups. Metronidazole (MNA), an antibiotic drug, is esterified and then grafted onto the surface of the modified PCL nanofiber mats via ester linkages. The ester bonds can be selectively hydrolyzed by cholesterol esterase (CE), an enzyme secreted by macrophagocytes accumulated at the site of infection, whose concentration is positively related to the severity of the infection. The drug can be triggered to release from the nanofiber membranes in responsive to the CE. With the increase of the CE concentration, a higher amount of MNA is released from the nanofiber mat, resulting in the enhancement of the antibacterial capability of the MNA-grafted nanofiber mat. The nanofiber mat has good cytocompatibility. This CE-responsive drug delivery system based on the electrospun nanofiber mat is promising as an optimal choice for antibacterial GTR/GBR membrane.
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Affiliation(s)
- Rui Shi
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, PR China
| | - Jingjing Ye
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Weiyang Li
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, PR China
| | - Jingshuang Zhang
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, PR China
| | - Jie Li
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Chengai Wu
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, PR China
| | - Jiajia Xue
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, United States.
| | - Liqun Zhang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
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18
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Bouguéon G, Kauss T, Dessane B, Barthélémy P, Crauste-Manciet S. Micro- and nano-formulations for bioprinting and additive manufacturing. Drug Discov Today 2019; 24:163-178. [DOI: 10.1016/j.drudis.2018.10.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/05/2018] [Accepted: 10/25/2018] [Indexed: 02/06/2023]
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19
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Bahcecioglu G, Hasirci N, Hasirci V. Cell behavior on the alginate-coated PLLA/PLGA scaffolds. Int J Biol Macromol 2018; 124:444-450. [PMID: 30465840 DOI: 10.1016/j.ijbiomac.2018.11.169] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/27/2018] [Accepted: 11/17/2018] [Indexed: 12/21/2022]
Abstract
Here, we investigated the effect of preparation temperature and alginate-coating on L929 fibroblast behavior on lyophilized microporous PLLA/PLGA (95:5, w/w) scaffolds. The lower freezing temperature used during lyophilization (-80 °C) resulted in smaller pores (around 50 μm) and higher compressive modulus (1500 kPa) than those prepared at the higher temperature (-20 °C) (pore size: 120 μm, compressive modulus: 600 kPa) (p < 0.01). Cell proliferation was significantly lower on the alginate-coated scaffolds (p < 0.05), probably due to weak cell adhesion on alginate, rapid degradation/dissolution of the alginate hydrogel (40% weight loss after 2 weeks of incubation) (p < 0.05), which resulted in loss of material and cells, and the decrease in the pH (p < 0.05), which probably resulted in decreased cell metabolic activity. Cells tended to get less round on the scaffolds prepared at -20 °C, which had lower compressive modulus and larger pores, and upon coating with alginate, which resulted in a hydrophilic surface that had lower stiffness. When the scaffolds had closer stiffness to the cells, the cells tended to get more branched. The most branched morphology of the fibroblasts was obtained in the presence of alginate, a natural polymer having a similar stiffness with that of the L929 fibroblasts (4 kPa).
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Affiliation(s)
- Gokhan Bahcecioglu
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey; Department of Biological Sciences, METU, Ankara, Turkey; Graduate Department of Biotechnology, METU, Ankara, Turkey
| | - Nesrin Hasirci
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey; Graduate Department of Biotechnology, METU, Ankara, Turkey; Department of Chemistry, METU, Ankara, Turkey
| | - Vasif Hasirci
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey; Department of Biological Sciences, METU, Ankara, Turkey; Graduate Department of Biotechnology, METU, Ankara, Turkey; Department of Medical Engineering, Acibadem Mehmet Ali Aydinlar University, Atasehir, Istanbul, Turkey.
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20
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Ruoß M, Häussling V, Schügner F, Olde Damink LHH, Lee SML, Ge L, Ehnert S, Nussler AK. A Standardized Collagen-Based Scaffold Improves Human Hepatocyte Shipment and Allows Metabolic Studies over 10 Days. Bioengineering (Basel) 2018; 5:E86. [PMID: 30332824 PMCID: PMC6316810 DOI: 10.3390/bioengineering5040086] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/12/2018] [Accepted: 10/14/2018] [Indexed: 02/06/2023] Open
Abstract
Due to pronounced species differences, hepatotoxicity of new drugs often cannot be detected in animal studies. Alternatively, human hepatocytes could be used, but there are some limitations. The cells are not always available on demand or in sufficient amounts, so far there has been only limited success to allow the transport of freshly isolated hepatocytes without massive loss of function or their cultivation for a long time. Since it is well accepted that the cultivation of hepatocytes in 3D is related to an improved function, we here tested the Optimaix-3D Scaffold from Matricel for the transport and cultivation of hepatocytes. After characterization of the scaffold, we shipped cells on the scaffold and/or cultivated them over 10 days. With the evaluation of hepatocyte functions such as urea production, albumin synthesis, and CYP activity, we showed that the metabolic activity of the cells on the scaffold remained nearly constant over the culture time whereas a significant decrease in metabolic activity occurred in 2D cultures. In addition, we demonstrated that significantly fewer cells were lost during transport. In summary, the collagen-based scaffold allows the transport and cultivation of hepatocytes without loss of function over 10 days.
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Affiliation(s)
- Marc Ruoß
- Department of Traumatology, Siegfried Weller Institute, Eberhard Karls University, 72076 Tübingen, Germany.
| | - Victor Häussling
- Department of Traumatology, Siegfried Weller Institute, Eberhard Karls University, 72076 Tübingen, Germany.
| | | | | | - Serene M L Lee
- Hepacult GmbH, 82152 Martinsried/Planegg, Germany.
- Biobank of the Department of General, Visceral and Transplantation Surgery, Hospital of the LMU, 81377 Munich, Germany.
| | - Liming Ge
- Hepacult GmbH, 82152 Martinsried/Planegg, Germany.
| | - Sabrina Ehnert
- Department of Traumatology, Siegfried Weller Institute, Eberhard Karls University, 72076 Tübingen, Germany.
| | - Andreas K Nussler
- Department of Traumatology, Siegfried Weller Institute, Eberhard Karls University, 72076 Tübingen, Germany.
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21
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Sattary M, Rafienia M, Khorasani MT, Salehi H. The effect of collector type on the physical, chemical, and biological properties of polycaprolactone/gelatin/nano-hydroxyapatite electrospun scaffold. J Biomed Mater Res B Appl Biomater 2018; 107:933-950. [PMID: 30199600 DOI: 10.1002/jbm.b.34188] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/22/2018] [Accepted: 06/12/2018] [Indexed: 11/09/2022]
Abstract
Electrospinning is considered a powerful method for the production of fibers in the nanoscale size. Small pore size results in poor cell infiltration, cell migration inhibition into scaffold pores and low oxygen diffusion. Electrospun polycaprolactone/gelatin/nano-hydroxyapatite (PCL/Gel/nHA) scaffolds were deposited into two types of fiber collectors (novel rotating disc and plate) to study fiber morphology, chemical, mechanical, hydrophilic, and biodegradation properties between each other. The proliferation and differentiation of MG-63 cells into the bone phenotype were determined using MTT method, alizarin red staining and alkaline phosphatase (ALP) activity. The rates for disc rotation were 50 and 100 rpm. The pore size measurement results indicated that the fibers produced by the disc rotation collector with speed rate 50 rpm have larger pores as compared to fibers produced by disc rotation at 100 rpm and flat plate collectors. A randomly structure with controlled pore size (38.65 ±0.33 μm) and lower fiber density, as compared to fibers collected by disc rotation with speed rate 100 rpm and flat plate collectors, was obtained. Fibers collected on the rotating disc with speed rate 50 rpm, were more hydrophilic due to larger pore size and therefore, faster infiltration of water into the scaffold and the rate of degradation was higher. These results demonstrate that PCL/Gel/nHA scaffolds made through a rotating disc collector at 50 rpm are more feasible to be used in bone tissue engineering applications due to appropriate pore size and increased adhesion and proliferation of cells, ALP activity and mineral deposits. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 933-950, 2019.
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Affiliation(s)
- Mansoureh Sattary
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Rafienia
- Biosensor Research Center, Isfahan University of Medical Sciences, 81744*176, Isfahan, Iran
| | - Mohammad Taghi Khorasani
- Department of Biomaterial, Iran Polymer and Petrochemical Institute, PO Box 14965, 159, Tehran, Iran
| | - Hossein Salehi
- Department of Anatomical Sciences and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, 81744*176, Isfahan, Iran
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22
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Ghayor C, Weber FE. Osteoconductive Microarchitecture of Bone Substitutes for Bone Regeneration Revisited. Front Physiol 2018; 9:960. [PMID: 30072920 PMCID: PMC6060436 DOI: 10.3389/fphys.2018.00960] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 06/29/2018] [Indexed: 12/11/2022] Open
Abstract
In the last three decades, all efforts in bone tissue engineering were driven by the dogma that the ideal pore size in bone substitutes lies between 0.3 and 0.5 mm in diameter. Newly developed additive manufacturing methodologies for ceramics facilitate the total control over pore size, pore distribution, bottleneck size, and bottleneck distribution. Therefore, this appears to be the method of choice with which to test the aforementioned characteristics of an ideal bone substitute. To this end, we produced a library of 15 scaffolds with diverse defined pore/bottleneck dimensions and distributions, tested them in vivo in a calvarial bone defect model in rabbits, and assessed the clinically most relevant parameters: defect bridging and bony regenerated area. Our in vivo data revealed that the ideal pore/bottleneck dimension for bone substitutes is in the range of 0.7-1.2 mm, and appears therefore to be twofold to fourfold more extended than previously thought. Pore/bottleneck dimensions of 1.5 and 1.7 mm perform significantly worse and appear unsuitable in bone substitutes. Thus, our results set the ideal range of pore/bottleneck dimensions and are likely to have a significant impact on the microarchitectural design of future bone substitutes for use in orthopedic, trauma, cranio-maxillofacial and oral surgery.
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Affiliation(s)
- Chafik Ghayor
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Franz E. Weber
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, Zurich, Switzerland
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23
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Du X, Fu S, Zhu Y. 3D printing of ceramic-based scaffolds for bone tissue engineering: an overview. J Mater Chem B 2018; 6:4397-4412. [PMID: 32254656 DOI: 10.1039/c8tb00677f] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Currently, one of the most promising strategies in bone tissue engineering focuses on the development of biomimetic scaffolds. Ceramic-based scaffolds with favorable osteogenic ability and mechanical properties are promising candidates for bone repair. Three-dimensional (3D) printing is an additive manufacturing technique, which allows the fabrication of patient-specific scaffolds with high structural complexity and design flexibility, and gains growing attention. This review aims to highlight advances in 3D printing of ceramic-based scaffolds for bone tissue engineering. Technical limitations and practical challenges are emphasized and design considerations are also discussed.
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Affiliation(s)
- Xiaoyu Du
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
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24
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Tamjid E. Three-dimensional polycaprolactone-bioactive glass composite scaffolds: Effect of particle size and volume fraction on mechanical properties and in vitro cellular behavior. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2017.1417285] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Elnaz Tamjid
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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25
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Liu XQ, Tang RZ. Biological responses to nanomaterials: understanding nano-bio effects on cell behaviors. Drug Deliv 2017; 24:1-15. [PMID: 29069934 PMCID: PMC8812585 DOI: 10.1080/10717544.2017.1375577] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Xi-Qiu Liu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Rui-Zhi Tang
- Lab of Inflammation & Cancer, Institut de Génétique Moléculaire de Montpellier, Montpellier, France
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26
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27
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Powder-based 3D printing for bone tissue engineering. Biotechnol Adv 2016; 34:740-753. [DOI: 10.1016/j.biotechadv.2016.03.009] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 03/20/2016] [Accepted: 03/27/2016] [Indexed: 12/19/2022]
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28
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Dhawan U, Pan HA, Lee CH, Chu YH, Huang GS, Lin YR, Chen WL. Spatial Control of Cell-Nanosurface Interactions by Tantalum Oxide Nanodots for Improved Implant Geometry. PLoS One 2016; 11:e0158425. [PMID: 27362432 PMCID: PMC4928932 DOI: 10.1371/journal.pone.0158425] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 06/15/2016] [Indexed: 11/19/2022] Open
Abstract
Nanotopological cues can be exploited to understand the nature of interactions between cells and their microenvironment to generate superior implant geometries. Nanosurface parameters which modulate the cell behavior and characteristics such as focal adhesions, cell morphology are not clearly understood. Here, we studied the role of different nanotopographic dimensions in modulating the cell behavior, characteristics and ultimately the cell fate and accordingly, a methodology to improve implant surface geometry is proposed. Tantalum oxide nanodots of 50, 100nm dot diameter with an inter-dot spacing of 20, 70nm and heights 40, 100nm respectively, were engineered on Silicon substrates. MG63 cells were cultured for 72 hours and the modulation in morphology, focal adhesions, cell extensible area, cell viability, transcription factors and genes responsible for bone protein secretion as a function of the nanodot diameter, inter-dot distance and nanodot height were evaluated. Nanodots of 50nm diameter with a 20nm inter-dot spacing and 40nm height enhanced cell spreading area by 40%, promoted cell viability by 70% and upregulated transcription factors and genes twice as much, as compared to the 100nm nanodots with 70nm inter-dot spacing and 100nm height. Favorable interactions between cells and all dimensions of 50nm nanodot diameter were observed, determined with Scanning electron microscopy and Immunofluorescence staining. Nanodot height played a vital role in controlling the cell fate. Dimensions of nanodot features which triggered a transition in cell characteristics or behavior was also defined through statistical analysis. The findings of this study provide insights in the parameters of nanotopographic features which can vitally control the cell fate and should therefore be taken into account when designing implant geometries.
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Affiliation(s)
- Udesh Dhawan
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC
| | - Hsu An Pan
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC
| | - Chia Hui Lee
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC
| | - Ying Hao Chu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC
| | | | - Yan Ren Lin
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan, School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, School of Medicine, Chung Shan Medical University, Taichung, Taiwan, ROC
| | - Wen Liang Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, ROC
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29
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3D-Printed Scaffolds and Biomaterials: Review of Alveolar Bone Augmentation and Periodontal Regeneration Applications. Int J Dent 2016; 2016:1239842. [PMID: 27366149 PMCID: PMC4913015 DOI: 10.1155/2016/1239842] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/17/2016] [Accepted: 05/10/2016] [Indexed: 12/23/2022] Open
Abstract
To ensure a successful dental implant therapy, the presence of adequate vertical and horizontal alveolar bone is fundamental. However, an insufficient amount of alveolar ridge in both dimensions is often encountered in dental practice due to the consequences of oral diseases and tooth loss. Although postextraction socket preservation has been adopted to lessen the need for such invasive approaches, it utilizes bone grafting materials, which have limitations that could negatively affect the quality of bone formation. To overcome the drawbacks of routinely employed grafting materials, bone graft substitutes such as 3D scaffolds have been recently investigated in the dental field. In this review, we highlight different biomaterials suitable for 3D scaffold fabrication, with a focus on “3D-printed” ones as bone graft substitutes that might be convenient for various applications related to implant therapy. We also briefly discuss their possible adoption for periodontal regeneration.
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30
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Zaiss S, Brown TD, Reichert JC, Berner A. Poly(ε-caprolactone) Scaffolds Fabricated by Melt Electrospinning for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E232. [PMID: 28773353 PMCID: PMC5502879 DOI: 10.3390/ma9040232] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/06/2016] [Accepted: 03/17/2016] [Indexed: 01/01/2023]
Abstract
Melt electrospinning is a promising approach to manufacture biocompatible scaffolds for tissue engineering. In this study, melt electrospinning of poly(ε-caprolactone) onto structured, metallic collectors resulted in scaffolds with an average pore size of 250-300 μm and an average fibre diameter of 15 μm. Scaffolds were seeded with ovine osteoblasts in vitro. Cell proliferation and deposition of mineralised extracellular matrix was assessed using PicoGreen® (Thermo Fisher Scientific, Scoresby, Australia) and WAKO® HR II (WAKO, Osaka, Japan) calcium assays. Biocompatibility, cell infiltration and the growth pattern of osteoblasts on scaffolds was investigated using confocal microscopy and scanning electron microscopy. Osteoblasts proliferated on the scaffolds over an entire 40-day culture period, with excellent survival rates and deposited mineralized extracellular matrix. In general, the 3D environment of the structured melt electrospun scaffold was favourable for osteoblast cultures.
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Affiliation(s)
- Sascha Zaiss
- Institute of Health & Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
- Department of Trauma Surgery, University Hospital Regensburg, Regensburg 93055, Germany.
| | - Toby D Brown
- Institute of Health & Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
| | - Johannes C Reichert
- Institute of Health & Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
- Department of Orthopedics and Trauma Surgery, Evangelisches Waldkrankenhaus Spandau, Berlin 13589, Germany.
| | - Arne Berner
- Institute of Health & Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
- Department of Trauma Surgery, University Hospital Regensburg, Regensburg 93055, Germany.
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Huber J, Griesshaber E, Nindiyasari F, Schmahl WW, Ziegler A. Functionalization of biomineral reinforcement in crustacean cuticle: Calcite orientation in the partes incisivae of the mandibles of Porcellio scaber and the supralittoral species Tylos europaeus (Oniscidea, Isopoda). J Struct Biol 2015; 190:173-91. [DOI: 10.1016/j.jsb.2015.03.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 03/16/2015] [Accepted: 03/17/2015] [Indexed: 10/23/2022]
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Abstract
A review of how the geometrical design of scaffolds influences the bone tissue regeneration process.
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Affiliation(s)
- Amir A. Zadpoor
- Department of Biomechanical Engineering
- Faculty of Mechanical
- Maritime
- and Materials Engineering
- Delft University of Technology (TU Delft)
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Current trends in bone tissue engineering. BIOMED RESEARCH INTERNATIONAL 2014; 2014:865270. [PMID: 24804256 PMCID: PMC3997160 DOI: 10.1155/2014/865270] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 03/09/2014] [Indexed: 01/20/2023]
Abstract
The development of tissue engineering and regeneration constitutes a new platform for translational medical research. Effective therapies for bone engineering typically employ the coordinated manipulation of cells, biologically active signaling molecules, and biomimetic, biodegradable scaffolds. Bone tissue engineering has become increasingly dependent on the merging of innovations from each of these fields, as they continue to evolve independently. This foreword will highlight some of the most recent advances in bone tissue engineering and regeneration, emphasizing the interconnected fields of stem cell biology, cell signaling biology, and biomaterial research. These include, for example, novel methods for mesenchymal stem cell purification, new methods of Wnt signaling pathway manipulation, and cutting edge computer assisted nanoscale design of bone scaffold materials. In the following
special issue, we sought to incorporate these diverse areas of emphasis in order to reflect current trends in the field.
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