1
|
Cernencu AI, Lungu A, Dragusin DM, Stancu IC, Dinescu S, Balahura LR, Mereuta P, Costache M, Iovu H. 3D Bioprinting of Biosynthetic Nanocellulose-Filled GelMA Inks Highly Reliable for Soft Tissue-Oriented Constructs. MATERIALS 2021; 14:ma14174891. [PMID: 34500980 PMCID: PMC8432727 DOI: 10.3390/ma14174891] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 11/21/2022]
Abstract
Bioink-formulations based on gelatin methacrylate combined with oxidized cellulose nanofibrils are employed in the present study. The parallel investigation of the printing performance, morphological, swelling, and biological properties of the newly developed hydrogels was performed, with inks prepared using methacrylamide-modified gelatins of fish or bovine origin. Scaffolds with versatile and well-defined internal structure and high shape fidelity were successfully printed due to the high viscosity and shear-thinning behavior of formulated inks and then photo-crosslinked. The biocompatibility of 3D-scaffolds was surveyed using human adipose stem cells (hASCs) and high viability and proliferation rates were obtained when in contact with the biomaterial. Furthermore, bioprinting tests were performed with hASCs embedded in the developed formulations. The results demonstrated that the designed inks are a versatile toolkit for 3D bioprinting and further show the benefits of using fish-derived gelatin for biofabrication.
Collapse
Affiliation(s)
- Alexandra I. Cernencu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.I.C.); (D.M.D.); (I.C.S.); (H.I.)
| | - Adriana Lungu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.I.C.); (D.M.D.); (I.C.S.); (H.I.)
- Correspondence:
| | - Diana M. Dragusin
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.I.C.); (D.M.D.); (I.C.S.); (H.I.)
| | - Izabela C. Stancu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.I.C.); (D.M.D.); (I.C.S.); (H.I.)
| | - Sorina Dinescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (S.D.); (L.R.B.); (M.C.)
| | - Liliana R. Balahura
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (S.D.); (L.R.B.); (M.C.)
| | - Paul Mereuta
- Horia Hulubei—National Institute for Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania;
| | - Marieta Costache
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (S.D.); (L.R.B.); (M.C.)
| | - Horia Iovu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.I.C.); (D.M.D.); (I.C.S.); (H.I.)
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
| |
Collapse
|
2
|
Nanostructured Materials for Artificial Tissue Replacements. Int J Mol Sci 2020; 21:ijms21072521. [PMID: 32260477 PMCID: PMC7178059 DOI: 10.3390/ijms21072521] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 02/04/2023] Open
Abstract
This paper review current trends in applications of nanomaterials in tissue engineering. Nanomaterials applicable in this area can be divided into two groups: organic and inorganic. Organic nanomaterials are especially used for the preparation of highly porous scaffolds for cell cultivation and are represented by polymeric nanofibers. Inorganic nanomaterials are implemented as they stand or dispersed in matrices promoting their functional properties while preserving high level of biocompatibility. They are used in various forms (e.g., nano- particles, -tubes and -fibers)-and when forming the composites with organic matrices-are able to enhance many resulting properties (biologic, mechanical, electrical and/or antibacterial). For this reason, this contribution points especially to such type of composite nanomaterials. Basic information on classification, properties and application potential of single nanostructures, as well as complex scaffolds suitable for 3D tissues reconstruction is provided. Examples of practical usage of these structures are demonstrated on cartilage, bone, neural, cardiac and skin tissue regeneration and replacements. Nanomaterials open up new ways of treatments in almost all areas of current tissue regeneration, especially in tissue support or cell proliferation and growth. They significantly promote tissue rebuilding by direct replacement of damaged tissues.
Collapse
|
3
|
Yang Z, Xu LS, Yin F, Shi YQ, Han Y, Zhang L, Jin HF, Nie YZ, Wang JB, Hao X, Fan DM, Zhou XM. In vitro and in vivo characterization of silk fibroin/gelatin composite scaffolds for liver tissue engineering. J Dig Dis 2012; 13:168-178. [PMID: 22356312 DOI: 10.1111/j.1751-2980.2011.00566.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To investigate the cytotoxicity of silk fibroin/gelatin (SF/G) composite scaffolds in vitro as well as their biocompatibility and degradation in vivo. METHODS The proliferation and relative growth rate of human hepatic QZG cells grown on different blends of two-dimensional (2-D) SF/G scaffolds were assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Flow cytometry was used to evaluate apoptotic rate of QZG cells on different blends of 2-D SF/G scaffolds. The effect of silk protein materials on cell growth was observed by scanning electron microscopy. Three-dimensional (3-D) SF/G scaffolds of three different ratios (diameter 10 mm, thickness 1 mm) were implanted into subcutaneous pockets on male Sprague-Dawley (SD) rats. On the 7th, 14th and 30th day post-implantation, the rats were sacrificed. The scaffold area including the surrounding tissues was retrieved. Hematoxylin and eosin staining was performed for observation under a light microscope. RESULTS Significant cell attachment and proliferation on the SF/G scaffolds were observed. As the increased gelatin concentration, SF/G scaffolds became more amenable to cell adhesion. After the subcutaneous implantation of the SF/G scaffolds in SD rats, immunological rejection tests showed only slight inflammation, measured by the presence of inflamed cells on day 7 and 14. By day 30, each scaffold had been completely infiltrated and organized by fibroblasts and inflamed cells. The greater the gelatin concentration in the scaffold, the faster the degradation rate. CONCLUSION Composite SF/G scaffolds are a promising candidate matrix for implantable bio-artificial livers.
Collapse
Affiliation(s)
- Zhao Yang
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Li Sha Xu
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Fang Yin
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Yong Quan Shi
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Ying Han
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Lin Zhang
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Hai Feng Jin
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Yong Zhan Nie
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Jing Bo Wang
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Xing Hao
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Dai Ming Fan
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| | - Xin Min Zhou
- State Key Laboratory of Cancer Biology and Institute of Gastroenterology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University
| |
Collapse
|
4
|
Abstract
Biomaterials are widely used to help treat neurological disorders and/or improve functional recovery in the central nervous system (CNS). This article reviews the application of biomaterials in (i) shunting systems for hydrocephalus, (ii) cortical neural prosthetics, (iii) drug delivery in the CNS, (iv) hydrogel scaffolds for CNS repair, and (v) neural stem cell encapsulation for neurotrauma. The biological and material requirements for the biomaterials in these applications are discussed. The difficulties that the biomaterials might face in each application and the possible solutions are also reviewed in this article.
Collapse
Affiliation(s)
- Yinghui Zhong
- Neurological Biomaterials and Therapeutics, Laboratory for Neuroengineering, Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University, Atlanta, GA 30332, USA
| | | |
Collapse
|
5
|
Howard D, Buttery LD, Shakesheff KM, Roberts SJ. Tissue engineering: strategies, stem cells and scaffolds. J Anat 2008; 213:66-72. [PMID: 18422523 DOI: 10.1111/j.1469-7580.2008.00878.x] [Citation(s) in RCA: 263] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Tissue engineering scaffolds are designed to influence the physical, chemical and biological environment surrounding a cell population. In this review we focus on our own work and introduce a range of strategies and materials used for tissue engineering, including the sources of cells suitable for tissue engineering: embryonic stem cells, bone marrow-derived mesenchymal stem cells and cord-derived mesenchymal stem cells. Furthermore, we emphasize the developments in custom scaffold design and manufacture, highlighting laser sintering, supercritical carbon dioxide processing, growth factor incorporation and zoning, plasma modification of scaffold surfaces, and novel multi-use temperature-sensitive injectable materials.
Collapse
Affiliation(s)
- Daniel Howard
- Wolfson Centre for Stem Cells, Tissue Engineering and Modelling, Centre for Biomolecular Science, School of Pharmacy, University of Nottingham, UK
| | | | | | | |
Collapse
|
6
|
Willerth SM, Faxel TE, Gottlieb DI, Sakiyama-Elbert SE. The effects of soluble growth factors on embryonic stem cell differentiation inside of fibrin scaffolds. Stem Cells 2007; 25:2235-44. [PMID: 17585170 PMCID: PMC2637150 DOI: 10.1634/stemcells.2007-0111] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The goal of this research was to determine the effects of different growth factors on the survival and differentiation of murine embryonic stem cell-derived neural progenitor cells (ESNPCs) seeded inside of fibrin scaffolds. Embryoid bodies were cultured for 8 days in suspension, retinoic acid was applied for the final 4 days to induce ESNPC formation, and then the EBs were seeded inside of three-dimensional fibrin scaffolds. Scaffolds were cultured in the presence of media containing different doses of the following growth factors: neurotrophin-3 (NT-3), basic fibroblast growth factor (bFGF), platelet-derived growth factor (PDGF)-AA, ciliary neurotrophic factor, and sonic hedgehog (Shh). The cell phenotypes were characterized using fluorescence-activated cell sorting and immunohistochemistry after 14 days of culture. Cell viability was also assessed at this time point. Shh (10 ng/ml) and NT-3 (25 ng/ml) produced the largest fractions of neurons and oligodendrocytes, whereas PDGF (2 and 10 ng/ml) and bFGF (10 ng/ml) produced an increase in cell viability after 14 days of culture. Combinations of growth factors were tested based on the results of the individual growth factor studies to determine their effect on cell differentiation. The incorporation of ESNPCs and growth factors into fibrin scaffolds may serve as potential treatment for spinal cord injury.
Collapse
Affiliation(s)
| | - Tracy E. Faxel
- Department of Biomedical Engineering, Washington University in St. Louis
| | - David I. Gottlieb
- Department of Anatomy and Neurobiology, Washington University in St. Louis
| | - Shelly E. Sakiyama-Elbert
- Department of Biomedical Engineering, Washington University in St. Louis
- Center for Materials Innovation, Washington University in St. Louis
- To whom correspondence should be addressed: Shelly Sakiyama-Elbert, Department of Biomedical Engineering, Washington University, Campus Box 1097, One Brookings Drive, St. Louis, MO 63130,
| |
Collapse
|
7
|
Guizzardi S, Martini D, Bacchelli B, Valdatta L, Thione A, Scamoni S, Uggeri J, Ruggeri A. Effects of heat deproteinate bone and polynucleotides on bone regeneration: an experimental study on rat. Micron 2007; 38:722-8. [PMID: 17587587 DOI: 10.1016/j.micron.2007.05.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2007] [Revised: 05/09/2007] [Accepted: 05/10/2007] [Indexed: 11/19/2022]
Abstract
This experimental study evaluated the effects of polynucleotides on bone regeneration on rats. Defects with a diameter of 2mm were prepared in the thickness of cortical bone of 32 rat tibiae and filled with different compounds: polynucleotide gel (PDRN), deproteinated porcine cortical bone (HDB) obtained by high temperature heating in the form of granules and a paste made of HDB granules and PDRN gel. Bone regeneration of the gaps was histologically analysed after a treatment time ranging from 1 to 12 weeks. Both PDRN and HDB stimulated bone growth and repair, but the paste prepared combining HDB granules and PDRN showed the best performance with faster filling, better osteconductive and biocompatible properties and easier handling. This study suggests that the paste prepared combining HDB and PDRN gel induces rapid bone regeneration in different clinical situations.
Collapse
Affiliation(s)
- S Guizzardi
- Department of Experimental Medicine, Section of Histology, University of Parma, Italy.
| | | | | | | | | | | | | | | |
Collapse
|