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Kolliopoulos V, Tiffany A, Polanek M, Harley BAC. Donor Sex and Passage Conditions Influence MSC Osteogenic Response in Mineralized Collagen Scaffolds. Adv Healthc Mater 2024:e2400039. [PMID: 39036820 DOI: 10.1002/adhm.202400039] [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: 01/04/2024] [Revised: 06/13/2024] [Indexed: 07/23/2024]
Abstract
Contemporary tissue engineering efforts often seek to use mesenchymal stem cells (MSCs) due to their multi-potent potential and ability to generate a pro-regenerative secretome. While many have reported the influence of matrix environment on MSC osteogenic response, few have investigated the effects of donor and sex. Here, a well-defined mineralized collagen scaffold is used to study the influence of passage number and donor-reported sex on MSC proliferation and osteogenic potential. A library of bone marrow and adipose tissue-derived stem cells from eight donors to examine donor viability in osteogenic capacity in mineralized collagen scaffolds is obtained. MSCs displayed reduced proliferative capacity as a function of passage duration. Further, MSCs showed significant sex-associated variability in osteogenic capacity. Notably, MSCs from male donors displayed significantly higher cell proliferation while MSCs from female donors displayed significantly higher osteogenic response via increased alkaline phosphate activity, osteoprotegerin release, and mineral formation in vitro. The study highlights the essentiality of including donor-reported sex as an experimental variable and reporting culture expansion in future studies of biomaterial regenerative potential.
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Affiliation(s)
- Vasiliki Kolliopoulos
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Aleczandria Tiffany
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Maxwell Polanek
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Brendan A C Harley
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
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2
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Xiang Y, Yan J, Bao X, Gleadall A, Sun T. Investigation of cell infiltration and colonization in 3D porous scaffolds via integrated experimental and computational strategies. J Biotechnol 2024; 382:78-87. [PMID: 38307299 DOI: 10.1016/j.jbiotec.2024.01.015] [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: 06/29/2023] [Accepted: 01/29/2024] [Indexed: 02/04/2024]
Abstract
This study aimed to integrate experimental and computational methods to systematically investigate cell infiltration and colonization within porous scaffolds. Poly(lactic acid) discs (Diameter: 6 mm; Thickness: 500 µm) with open pores (Diameter: 400-1100 µm), corners (Angle: 30-120°) and gaps (Distance: 100-500 µm), and cellulosic scaffolds with irregular pores (Diameter: 50-300 µm) were situated in tissue culture plates and cultured with human dermal fibroblasts (HDFs). Both phase contrast and scanning electron microscopy revealed that HDFs initially proliferated on scaffold surfaces, then infiltrated into the porous structures via cell bridging and stacking strategies, which was affected by the initial cell seeding densities, porous structures and culture times. Based on the density-dependent cell growths in two-dimensional cell cultures, power law models were developed to quantitatively simulate cell growths on scaffold surfaces. Model analysis predicted the effect of cell seeding efficiency on cell infiltrations into the porous scaffolds, which was further validated via series cell seeding experiments. The novelty of this research lies in the incorporation of multiple experimental and computational strategies, which enables the mechanistic insights of cell invasion and colonization in porous scaffolds, also facilitates the development of suitable bioprocesses for cell seeding and tissue manufacturing in Tissue Engineering and Regenerative Medicine.
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Affiliation(s)
- Yu Xiang
- Department of Materials, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Jiongyi Yan
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Xujin Bao
- Department of Materials, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Andrew Gleadall
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Tao Sun
- Department of Chemical Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK.
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3
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Kolliopoulos V, Tiffany A, Polanek M, Harley BAC. DONOR VARIABILITY IN HUMAN MESENCHYMAL STEM CELL OSTEOGENIC RESPONSE AS A FUNCTION OF PASSAGE CONDITIONS AND DONOR SEX. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.12.566781. [PMID: 38014316 PMCID: PMC10680622 DOI: 10.1101/2023.11.12.566781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Contemporary tissue engineering efforts often seek to use mesenchymal stem cells (MSCs) due to their potential to differentiate to various tissue-specific cells and generate a pro-regenerative secretome. While MSC differentiation and therapeutic potential can differ as a function of matrix environment, it may also be widely influenced as a function of donor-to-donor variability. Further, effects of passage number and donor sex may further convolute the identification of clinically effective MSC-mediated regeneration technologies. We report efforts to adapt a well-defined mineralized collagen scaffold platform to study the influence of MSC proliferation and osteogenic potential as a function of passage number and donor sex. Mineralized collagen scaffolds broadly support MSC osteogenic differentiation and regenerative potency in the absence of traditional osteogenic supplements for a wide range of MSCs (rabbit, rat, porcine, human). We obtained a library of bone marrow and adipose tissue derived stem cells to examine donor-variability of regenerative potency in mineralized collagen scaffolds. MSCs displayed reduced proliferative capacity as a function of passage duration. Further, MSCs showed significant sex-based differences. Notably, MSCs from male donors displayed significantly higher metabolic activity and proliferation while MSCs from female donor displayed significantly higher osteogenic response via increased alkaline phosphate activity, osteoprotegerin release, and mineral formation in vitro. Our study highlights the essentiality of considering MSC donor sex and culture expansion in future studies of biomaterial regenerative potential.
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Lam D, Enright HA, Cadena J, George VK, Soscia DA, Tooker AC, Triplett M, Peters SKG, Karande P, Ladd A, Bogguri C, Wheeler EK, Fischer NO. Spatiotemporal analysis of 3D human iPSC-derived neural networks using a 3D multi-electrode array. Front Cell Neurosci 2023; 17:1287089. [PMID: 38026689 PMCID: PMC10679684 DOI: 10.3389/fncel.2023.1287089] [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: 09/01/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
While there is a growing appreciation of three-dimensional (3D) neural tissues (i.e., hydrogel-based, organoids, and spheroids), shown to improve cellular health and network activity to mirror brain-like activity in vivo, functional assessment using current electrophysiology techniques (e.g., planar multi-electrode arrays or patch clamp) has been technically challenging and limited to surface measurements at the bottom or top of the 3D tissue. As next-generation MEAs, specifically 3D MEAs, are being developed to increase the spatial precision across all three dimensions (X, Y, Z), development of improved computational analytical tools to discern region-specific changes within the Z dimension of the 3D tissue is needed. In the present study, we introduce a novel computational analytical pipeline to analyze 3D neural network activity recorded from a "bottom-up" 3D MEA integrated with a 3D hydrogel-based tissue containing human iPSC-derived neurons and primary astrocytes. Over a period of ~6.5 weeks, we describe the development and maturation of 3D neural activity (i.e., features of spiking and bursting activity) within cross sections of the 3D tissue, based on the vertical position of the electrode on the 3D MEA probe, in addition to network activity (identified using synchrony analysis) within and between cross sections. Then, using the sequential addition of postsynaptic receptor antagonists, bicuculline (BIC), 2-amino-5-phosphonovaleric acid (AP-5), and 6-cyano-5-nitroquinoxaline-2,3-dione (CNQX), we demonstrate that networks within and between cross sections of the 3D hydrogel-based tissue show a preference for GABA and/or glutamate synaptic transmission, suggesting differences in the network composition throughout the neural tissue. The ability to monitor the functional dynamics of the entire 3D reconstructed neural tissue is a critical bottleneck; here we demonstrate a computational pipeline that can be implemented in studies to better interpret network activity within an engineered 3D neural tissue and have a better understanding of the modeled organ tissue.
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Affiliation(s)
- Doris Lam
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Heather A. Enright
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Jose Cadena
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Vivek Kurien George
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - David A. Soscia
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Angela C. Tooker
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Michael Triplett
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Sandra K. G. Peters
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Piyush Karande
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Alexander Ladd
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Chandrakumar Bogguri
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Elizabeth K. Wheeler
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Nicholas O. Fischer
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
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5
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Feng Z, Su X, Wang T, Sun X, Yang H, Guo S. The Role of Microsphere Structures in Bottom-Up Bone Tissue Engineering. Pharmaceutics 2023; 15:pharmaceutics15020321. [PMID: 36839645 PMCID: PMC9964570 DOI: 10.3390/pharmaceutics15020321] [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: 11/17/2022] [Revised: 01/04/2023] [Accepted: 01/12/2023] [Indexed: 01/20/2023] Open
Abstract
Bone defects have caused immense healthcare concerns and economic burdens throughout the world. Traditional autologous allogeneic bone grafts have many drawbacks, so the emergence of bone tissue engineering brings new hope. Bone tissue engineering is an interdisciplinary biomedical engineering method that involves scaffold materials, seed cells, and "growth factors". However, the traditional construction approach is not flexible and is unable to adapt to the specific shape of the defect, causing the cells inside the bone to be unable to receive adequate nourishment. Therefore, a simple but effective solution using the "bottom-up" method is proposed. Microspheres are structures with diameters ranging from 1 to 1000 µm that can be used as supports for cell growth, either in the form of a scaffold or in the form of a drug delivery system. Herein, we address a variety of strategies for the production of microspheres, the classification of raw materials, and drug loading, as well as analyze new strategies for the use of microspheres in bone tissue engineering. We also consider new perspectives and possible directions for future development.
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Affiliation(s)
- Ziyi Feng
- Department of Plastic Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang 110002, China; (Z.F.); (X.S.); (T.W.)
| | - Xin Su
- Department of Plastic Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang 110002, China; (Z.F.); (X.S.); (T.W.)
| | - Ting Wang
- Department of Plastic Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang 110002, China; (Z.F.); (X.S.); (T.W.)
| | - Xiaoting Sun
- School of Forensic Medicine, China Medical University, No. 77, Puhe Road, Shenyang 110122, China
- Correspondence: (X.S.); (S.G.)
| | - Huazhe Yang
- School of Intelligent Medicine, China Medical University, No. 77, Puhe Road, Shenyang 110122, China;
| | - Shu Guo
- Department of Plastic Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang 110002, China; (Z.F.); (X.S.); (T.W.)
- Correspondence: (X.S.); (S.G.)
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6
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Blaudez F, Vaquette C, Ivanovski S. Cell Seeding on 3D Scaffolds for Tissue Engineering and Disease Modeling Applications. Methods Mol Biol 2023; 2588:473-483. [PMID: 36418705 DOI: 10.1007/978-1-0716-2780-8_28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Scaffold cell seeding is a crucial step for the standardization and homogeneous maturation of tissue engineered constructs. This is particularly critical in the context of additively manufactured scaffolds whereby large pore size and high porosity usually impedes the retention of the seeding solution resulting in poor seeding efficacy and heterogeneous cell distribution. To circumvent this limitation, a simple yet efficient cell seeding technique is described in this chapter consisting of preincubating the scaffold in 100% serum for 1 h leading to reproducible seeding. A proof of concept is demonstrated using highly porous melt electrowritten polycaprolactone scaffolds as the cell carrier. As cell density, cell distribution, and differentiation within the scaffold are important parameters, various assays are proposed to validate the seeding and perform quality control of the cellularized construct using techniques such as alizarin red, Sirius red, and immunostaining.
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Affiliation(s)
- Fanny Blaudez
- The University of Queensland, School of Dentistry, Brisbane, Australia
| | - Cedryck Vaquette
- The University of Queensland, School of Dentistry, Brisbane, Australia.,The University of Queensland, School of Dentistry, Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), Brisbane, Australia
| | - Sašo Ivanovski
- The University of Queensland, School of Dentistry, Brisbane, Australia. .,The University of Queensland, School of Dentistry, Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), Brisbane, Australia.
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Collon K, Bell JA, Chang SW, Gallo MC, Sugiyama O, Marks C, Lieberman JR. Effects of cell seeding technique and cell density on BMP-2 production in transduced human mesenchymal stem cells. J Biomed Mater Res A 2022; 110:1944-1952. [PMID: 35950648 PMCID: PMC9804863 DOI: 10.1002/jbm.a.37430] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 01/09/2023]
Abstract
Small animal models have demonstrated the efficacy of ex vivo regional gene therapy using scaffolds loaded with BMP-2-expressing mesenchymal stem cells (MSCs). Prior to clinical translation, optimization of seeding techniques of the transduced cells will be important to minimize time and resource expenditure, while maximizing cell delivery and BMP-2 production. No prior studies have investigated cell-seeding techniques in the setting of transduced cells for gene therapy applications. Using BMP-2-expressing transduced adipose-derived MSCs and a porous ceramic scaffold, this study compared previously described static and dynamic seeding techniques with respect to cell seeding efficiency, uniformity of cell distribution, and in vitro BMP-2 production. Static and negative pressure seeding techniques demonstrated the highest seeding efficiency, while orbital shaking was associated with the greatest increases in BMP-2 production per cell. Low density cell suspensions were associated with the highest seeding efficiency and uniformity of cell distribution, and the greatest increases in BMP-2 production from 2 to 7 days after seeding. Our results highlight the potential for development of an optimized cell density and seeding technique that could greatly reduce the number of MSCs needed to produce therapeutic BMP-2 levels in clinical situations. Further studies are needed to investigate in vivo effects of cell seeding techniques on bone healing.
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Affiliation(s)
- Kevin Collon
- Department of Orthopaedic SurgeryKeck School of Medicine of USCLos AngelesCaliforniaUSA
| | - Jennifer A. Bell
- Department of Orthopaedic SurgeryKeck School of Medicine of USCLos AngelesCaliforniaUSA
| | - Stephanie W. Chang
- Department of Orthopaedic SurgeryKeck School of Medicine of USCLos AngelesCaliforniaUSA
| | - Matthew C. Gallo
- Department of Orthopaedic SurgeryKeck School of Medicine of USCLos AngelesCaliforniaUSA
| | - Osamu Sugiyama
- Department of Orthopaedic SurgeryKeck School of Medicine of USCLos AngelesCaliforniaUSA
| | - Carolyn Marks
- Core Center of Excellence in Nano ImagingUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Jay R. Lieberman
- Department of Orthopaedic SurgeryKeck School of Medicine of USCLos AngelesCaliforniaUSA
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8
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Redmond J, McCarthy HO, Buchanan P, Levingstone TJ, Dunne NJ. Development and characterisation of 3D collagen-gelatin based scaffolds for breast cancer research. BIOMATERIALS ADVANCES 2022; 142:213157. [PMID: 36279748 DOI: 10.1016/j.bioadv.2022.213157] [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: 06/30/2022] [Revised: 09/20/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
While 2D culture presents a useful tool for cancer research, it fails to replicate the tumor microenvironment as it lacks proper three-dimensional cell-cell/cell-matrix interactions, often resulting in exaggerated responses to therapeutic agents. 3D models that aim to overcome the issues associated with 2D culture research offer a new frontier for cancer research with cell growth, morphology and genetic properties that more closely match in vivo cancers. Herein, we aim to develop a collagen-based scaffold that supports the attachment and proliferation of breast cancer (BC) cells as a 3D culture model. Scaffolds were produced on a repeatable basis using a freeze-drying procedure. The constructs were highly porous (>99%) with homogenous pore sizes (150-300 μm) and an interconnected structure. The application of 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDAC) crosslinking resulted in scaffolds with elastic moduli in the range of 1-2 kPa, mimicking cancerous breast tissue stiffness. Furthermore, the incorporation of gelatin into the scaffolds enabled the porosity, pore size and mechanical properties to be tailored, resulting in scaffolds with stiffness values that accurately replicate the stiffness of human BC extracellular matrix (ECM) (1.3-1.7 kPa). Scaffolds displayed high in vitro stability with 90% of mass remaining after 14 days of culture. The scaffolds were shown to be highly biocompatible, and capable of supporting the attachment, infiltration and proliferation of MCF7 breast cancer (BC) cells over +14 days. These results confirm the suitability of these scaffolds as culture models for BC cells. These collagen-based scaffolds offer significant potential for the exploration of aspects of BC, such as gene expression profiles and patterns, and for the assessment of the efficacy of therapeutic agents in treating BC.
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Affiliation(s)
- John Redmond
- School of Mechanical and Manufacturing Engineering, Dublin City University, Collins Avenue, Dublin 9, Ireland; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland.
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom; School of Chemical Sciences, Dublin City University, Collins Avenue, Dublin 9, Ireland
| | - Paul Buchanan
- School of Nursing and Human Science, Dublin City University, Collins Avenue, Dublin, Ireland; National Institute of Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Tanya J Levingstone
- School of Mechanical and Manufacturing Engineering, Dublin City University, Collins Avenue, Dublin 9, Ireland; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland; Biodesign Europe, Dublin City University, Dublin 9, Ireland.
| | - Nicholas J Dunne
- School of Mechanical and Manufacturing Engineering, Dublin City University, Collins Avenue, Dublin 9, Ireland; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland; School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland; Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland; Biodesign Europe, Dublin City University, Dublin 9, Ireland.
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9
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Xue N, Ding X, Huang R, Jiang R, Huang H, Pan X, Min W, Chen J, Duan JA, Liu P, Wang Y. Bone Tissue Engineering in the Treatment of Bone Defects. Pharmaceuticals (Basel) 2022; 15:ph15070879. [PMID: 35890177 PMCID: PMC9324138 DOI: 10.3390/ph15070879] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 02/05/2023] Open
Abstract
Bones play an important role in maintaining exercise and protecting organs. Bone defect, as a common orthopedic disease in clinics, can cause tremendous damage with long treatment cycles. Therefore, the treatment of bone defect remains as one of the main challenges in clinical practice. Today, with increased incidence of bone disease in the aging population, demand for bone repair material is high. At present, the method of clinical treatment for bone defects including non-invasive therapy and invasive therapy. Surgical treatment is the most effective way to treat bone defects, such as using bone grafts, Masquelet technique, Ilizarov technique etc. In recent years, the rapid development of tissue engineering technology provides a new treatment strategy for bone repair. This review paper introduces the current situation and challenges of clinical treatment of bone defect repair in detail. The advantages and disadvantages of bone tissue engineering scaffolds are comprehensively discussed from the aspect of material, preparation technology, and function of bone tissue engineering scaffolds. This paper also summarizes the 3D printing technology based on computer technology, aiming at designing personalized artificial scaffolds that can accurately fit bone defects.
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Affiliation(s)
- Nannan Xue
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.P.); (J.-A.D.)
| | - Xiaofeng Ding
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
| | - Rizhong Huang
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
| | - Ruihan Jiang
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
| | - Heyan Huang
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
| | - Xin Pan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.P.); (J.-A.D.)
| | - Wen Min
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
| | - Jun Chen
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.P.); (J.-A.D.)
| | - Pei Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.P.); (J.-A.D.)
- Correspondence: (P.L.); (Y.W.); Tel.: +86-(25)-8581-1917 (P.L. & Y.W.)
| | - Yiwei Wang
- Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing 210023, China; (N.X.); (X.D.); (R.H.); (R.J.); (H.H.); (W.M.); (J.C.)
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.P.); (J.-A.D.)
- Burns Injury and Reconstructive Surgery Research, ANZAC Research Institute, University of Sydney, Concord Repatriation General Hospital, Concord 2137, Australia
- Correspondence: (P.L.); (Y.W.); Tel.: +86-(25)-8581-1917 (P.L. & Y.W.)
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10
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Cytocompatibility and Antibacterial Properties of Coaxial Electrospun Nanofibers Containing Ciprofloxacin and Indomethacin Drugs. Polymers (Basel) 2022; 14:polym14132565. [PMID: 35808610 PMCID: PMC9269477 DOI: 10.3390/polym14132565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/17/2022] [Accepted: 06/20/2022] [Indexed: 12/10/2022] Open
Abstract
A coaxial nanofibrous scaffold of poly (ε-caprolactone) and gelatin/cellulose acetate encapsulating anti-inflammatory and antibacterial drugs was co-electrospun for skin tissue regeneration. Indomethacin and ciprofloxacin as model drugs were added to the core and the shell solutions, respectively. The effect of the drugs’ presence and crosslinking on the scaffold properties was investigated. TEM images confirmed the core−shell structure of the scaffold. The fiber diameter and the pore size of the scaffold increased after crosslinking. The tensile properties of the scaffold improved after crosslinking. The crosslinked scaffold illustrated a higher rate of swelling, and a lower rate of degradation and drug release compared to the uncrosslinked one. Fitting the release data into the Peppas equation showed that Fickian diffusion was the dominant mechanism of drug release from the scaffolds. The results of biocompatibility evaluations showed no cytotoxicity and suitable adhesion and cell growth on the prepared core−shell structure. The antibacterial activity of the scaffolds was studied against one of the most common pathogens in skin wounds, where the existence of ciprofloxacin could prevent the growth of the Staphylococcus aureus bacteria around the scaffold. The obtained results suggested a new coaxial nanofibrous scaffold as a promising candidate for simultaneous tissue regeneration and controlled drug release.
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11
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Dynamic seeding versus microinjection of mesenchymal stem cells for acellular nerve allograft: an in vitro comparison. J Plast Reconstr Aesthet Surg 2022; 75:2821-2830. [PMID: 35570113 PMCID: PMC9391259 DOI: 10.1016/j.bjps.2022.04.017] [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] [Received: 10/08/2021] [Revised: 03/17/2022] [Accepted: 04/12/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Mesenchymal stem cell (MSC)-supplemented acellular nerve allografts (ANA) are a potential strategy to improve the treatment of segmental nerve defects. Prior to clinical translation, optimal cell delivery methods must be defined. While two techniques, dynamic seeding and microinjection, have been described, the seeding efficiency, cell viability, and distribution of MSCs in ANAs are yet to be compared. METHODS Sciatic nerve segments of Sprague-Dawley rats were decellularized, and MSCs were harvested from the adipose tissue of Lewis rats. Cell viability was evaluated after injection of MSCs through a 27-gauge needle at different flow rates (10, 5, and 1 µL/min). MSCs were dynamically seeded or longitudinally injected into ANAs. Cell viability, seeding efficiency, and distribution were evaluated using LIVE/DEAD and MTS assays, scanning electron microscopy, and Hoechst staining. RESULTS No statistically significant difference in cell viability after injection at different flow rates was seen. After cell delivery, 84.1 ± 3.7% and 87.8 ± 2.8% of MSCs remained viable in the dynamic seeding and microinjection group, respectively (p = 0.41). The seeding efficiency of microinjection (100.4%±5.6) was significantly higher than dynamic seeding (48.1%±8.6) on day 1 (p = 0.001). Dynamic seeding demonstrated a significantly more uniform cell distribution over the course of the ANA compared to microinjection (p = 0.02). CONCLUSION MSCs remain viable after both dynamic seeding and microinjection in ANAs. Higher seeding efficiency was observed with microinjection, but dynamic seeding resulted in a more uniform distribution. In vivo studies are required to assess the effect on gene expression profiles and functional motor outcomes.
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Abstract
Three-dimensional printing is a still-emerging technology with high impact for the medical community, particularly in the development of tissues for the clinic. Many types of printers are under development, including extrusion, droplet, melt, and light-curing technologies. Herein we discuss the various types of 3D printers and their strengths and weaknesses concerning tissue engineering. Despite the advantages of 3D printing, challenges remain in the development of large, clinically relevant tissues. Advancements in bioink development, printer technology, tissue vascularization, and cellular sourcing/expansion are discussed, alongside future opportunities for the field. Trends regarding in situ printing, personalized medicine, and whole organ development are highlighted. Expected final online publication date for the Annual Review of Chemical and Biomolecular Engineering, Volume 13 is October 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Kelsey Willson
- Wake Forest Institute for Regenerative Medicine, Wake Forest University, Winston-Salem, North Carolina, USA;
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest University, Winston-Salem, North Carolina, USA;
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13
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Current Progress in Vascular Engineering and Its Clinical Applications. Cells 2022; 11:cells11030493. [PMID: 35159302 PMCID: PMC8834640 DOI: 10.3390/cells11030493] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 02/04/2023] Open
Abstract
Coronary heart disease (CHD) is caused by narrowing or blockage of coronary arteries due to atherosclerosis. Coronary artery bypass grafting (CABG) is widely used for the treatment of severe CHD cases. Although autologous vessels are a preferred choice, healthy autologous vessels are not always available; hence there is a demand for tissue engineered vascular grafts (TEVGs) to be used as alternatives. However, producing clinical grade implantable TEVGs that could healthily survive in the host with long-term patency is still a great challenge. There are additional difficulties in producing small diameter (<6 mm) vascular conduits. As a result, there have not been TEVGs that are commercially available. Properties of vascular scaffolds such as tensile strength, thrombogenicity and immunogenicity are key factors that determine the biocompatibility of TEVGs. The source of vascular cells employed to produce TEVGs is a limiting factor for large-scale productions. Advanced technologies including the combined use of natural and biodegradable synthetic materials for scaffolds in conjunction with the use of mesenchyme stem cells or induced pluripotent stem cells (iPSCs) provide promising solutions for vascular tissue engineering. The aim of this review is to provide an update on various aspects in this field and the current status of TEVG clinical applications.
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Generation of hybrid tissue engineered construct through embedding autologous chondrocyte loaded platelet rich plasma/alginate based hydrogel in porous scaffold for cartilage regeneration. Int J Biol Macromol 2022; 203:389-405. [PMID: 35063489 DOI: 10.1016/j.ijbiomac.2022.01.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 01/08/2022] [Accepted: 01/09/2022] [Indexed: 12/27/2022]
Abstract
Over the past decades, various attempts have been made to develop suitable tissue-engineered constructs to repair or regenerate the damaged or diseased articular cartilage. In the present study, we embedded Platelet rich plasma (PRP)/Sodium Alginate (SA) based hydrogel in porous 3D scaffold of chitosan (CH)/chondroitin sulfate (CS)/silk fibroin (SF) to develop hybrid scaffold for cartilage tissue construct generation with abilities to support shape recovery potential, facilitate uniform cells distribution and mimic gel like cartilage tissue extracellular matrix.The developed hybrid matrix shows suitable pore size (55-261 μm), porosity (77 ± 4.3%) and compressive strength (0.13 ± 0.04 MPa) for cartilage tissue construct generation and its applications. The developed SA/PRP-based cartilage construct exhibits higher metabolic activity, glycosaminoglycan deposition, expression of collagen type II, and aggrecan in comparison to SA based cell-scaffold construct. In-vivo animal study was also performed to investigate the biocompatibility and cartilage tissue regeneration potential of the developed construct. The obtained gross analysis of knee sample, micro-computed tomography, and histological analysis suggest that implanted tissue construct possess the superior potential to regenerate hyaline cartilage defect of thickness around 1.10 ± 0.36 mm and integrate with surrounding tissue at the defect site. Thus, the proposed strategy for the development of cartilage tissue constructs might be beneficial for the repair of full-thickness knee articular cartilage defects.
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15
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Kurzyk A. Mesenchymal Stem Cell Seeding on 3D Scaffolds. Methods Mol Biol 2022; 2429:417-434. [PMID: 35507178 DOI: 10.1007/978-1-0716-1979-7_28] [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: 06/14/2023]
Abstract
Evaluation of mesenchymal stem cell seeding efficiency in three-dimensional (3D) scaffolds is a critical step for constructing a potent and useful tissue engineering product for regenerative medicine. To determine the quantity of cells seeded on a scaffold, their condition and viability, and/or to confirm cell adhesion to the scaffold surface, a number of cellular assays are used. The assays are most often based on a direct or indirect colorimetric-, fluorimetric-, bioluminescent-, or isotope-based measurement of changes reflecting the activity of cellular processes. This chapter presents a selection of assays measuring the efficiency of cell seeding on scaffolds, that is, the MTS (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium)) assay, the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, the ATP (adenosine triphosphate), DAPI (4',6-diamidino-2-phenylindole) assay, the Alamar Blue (7-hydroxy-10-oxidophenoxazin-10-ium-3-one, resazurin) assay and the Pico Green dsDNA (N'-[3-(dimethylamino)propyl]-N,N-dimethyl-N'-[4-[(E)-(3-methyl-1,3-benzothiazol-2-ylidene)methyl]-1-phenylquinolin-1-ium-2-yl]propane-1,3-diamine) assay. These assays monitor the number of viable cells, sometimes in conjunction with specifying cell membrane integrity, determine enzymatic activity associated with cell metabolism, measure cell proliferation rate, and assess the total protein or DNA content in the cell-scaffold construct. The choice of the appropriate methods and the details for testing 3D cultures are of utmost importance to properly evaluate tissue engineering products. Still, developing standards for assessment of cell-scaffold constructs remains a challenge in tissue engineering.
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Affiliation(s)
- Agata Kurzyk
- Department of Cancer Biology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.
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16
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Semitela Â, Leal Pereira A, Sousa C, Mendes AF, Marques PAAP, Completo A. Multi-layered electrospinning and electrospraying approach: Effect of polymeric supplements on chondrocyte suspension. J Biomater Appl 2021; 36:1629-1640. [PMID: 34970927 DOI: 10.1177/08853282211064403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Articular cartilage was expected to be one of the first tissues to be successfully engineered, but replicating the complex fibril architecture and the cellular distribution of the native cartilage has proven difficult. While electrospinning has been widely used to reproduce the depth-dependent fibre architecture in 3D scaffolds, the chondrocyte-controlled distribution remains an unsolved problem. To incorporate cells homogeneously through the depth of scaffolds, a combination of polymer electrospinning and cell seeding is necessary. A multi-layer approach alternating between polymer electrospinning with chondrocyte electrospraying can be a solution. Still, the success of this process is related to the survival rate of the electrosprayed chondrocytes embedded within the electrospun mesh. In this regard, the present study investigated the impact of the multi-layered process and the supplementation of the electrospray chondrocyte suspension with different concentrations of Gelatin and Alginate on the viability of electrosprayed chondrocytes embedded within a Polycaprolactone/Gelatin electrospun mesh and on the mechanical properties of the resulting meshes. The addition of Gelatin in the chondrocyte suspension did not increase significantly (p > 0.05) the percentage of viable electrosprayed chondrocytes (25%), while 3 wt% Alginate addition led to a significant (p < 0.05) increase in chondrocyte viability (50%) relative to the case without polymer supplement (15%). Furthermore, the addition of both polymer supplements increased the mechanical properties of the multi-layer construct. These findings imply that this multi-layered approach can be applied to cartilage TE allowing for automated chondrocyte integration during scaffolds creation.
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Affiliation(s)
- Ângela Semitela
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
| | - Andreia Leal Pereira
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
| | - Cátia Sousa
- 530237Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Alexandrina F Mendes
- 530237Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Paula A A P Marques
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
| | - António Completo
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
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Willson K, Atala A, Yoo JJ. Bioprinting Au Natural: The Biologics of Bioinks. Biomolecules 2021; 11:1593. [PMID: 34827591 PMCID: PMC8615908 DOI: 10.3390/biom11111593] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/14/2021] [Accepted: 10/23/2021] [Indexed: 02/07/2023] Open
Abstract
The development of appropriate bioinks is a complex task, dependent on the mechanical and biochemical requirements of the final construct and the type of printer used for fabrication. The two most common tissue printers are micro-extrusion and digital light projection printers. Here we briefly discuss the required characteristics of a bioink for each of these printing processes. However, physical printing is only a short window in the lifespan of a printed construct-the system must support and facilitate cellular development after it is printed. To that end, we provide a broad overview of some of the biological molecules currently used as bioinks. Each molecule has advantages for specific tissues/cells, and potential disadvantages are discussed, along with examples of their current use in the field. Notably, it is stressed that active researchers are trending towards the use of composite bioinks. Utilizing the strengths from multiple materials is highlighted as a key component of bioink development.
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Affiliation(s)
| | | | - James J. Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston Salem, NC 27157, USA; (K.W.); (A.A.)
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18
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Musculoskeletal tissue engineering: Regional gene therapy for bone repair. Biomaterials 2021; 275:120901. [PMID: 34091300 DOI: 10.1016/j.biomaterials.2021.120901] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/24/2021] [Accepted: 05/14/2021] [Indexed: 02/07/2023]
Abstract
Bone loss associated with fracture nonunion, revision total joint arthroplasty (TJA), and pseudoarthrosis of the spine presents a challenging clinical scenario for the orthopaedic surgeon. Current treatment options including autograft, allograft, bone graft substitutes, and bone transport techniques are associated with significant morbidity, high costs, and prolonged treatment regimens. Unfortunately, these treatment strategies have proven insufficient to safely and consistently heal bone defects in the stringent biological environments often encountered in clinical cases of bone loss. The application of tissue engineering (TE) to musculoskeletal pathology has uncovered exciting potential treatment strategies for challenging bone loss scenarios in orthopaedic surgery. Regional gene therapy involves the local implantation of nucleic acids or genetically modified cells to direct specific protein expression, and has shown promise as a potential TE technique for the regeneration of bone. Preclinical studies in animal models have demonstrated the ability of regional gene therapy to safely and effectively heal critical sized bone defects which otherwise do not heal. The purpose of the present review is to provide a comprehensive overview of the current status of gene therapy applications for TE in challenging bone loss scenarios, with an emphasis on gene delivery methods and models, scaffold biomaterials, preclinical results, and future directions.
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19
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Ratheesh G, Shi M, Lau P, Xiao Y, Vaquette C. Effect of Dual Pore Size Architecture on In Vitro Osteogenic Differentiation in Additively Manufactured Hierarchical Scaffolds. ACS Biomater Sci Eng 2021; 7:2615-2626. [PMID: 33881301 DOI: 10.1021/acsbiomaterials.0c01719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The combination of macro- and microporosity is a potent manner of enhancing osteogenic potential, but the biological events leading to this increase in osteogenesis are not well understood. In this study, we investigated the effect of a dual pore size scaffold on the physical and biological properties, with the hypothesis that cell condensation is the determining factor for enhanced osteogenic differentiation. To this end, a hierarchical scaffold possessing a dual (large and small) pore size was fabricated by combining two additive manufacturing techniques: melt electrospinning writing (MEW) and fused deposition modeling (FDM). The scaffolds showed a mechanical stiffness of 23.2 ± 1.5 MPa similar to the FDM control scaffold, while the hybrid revealed an increased specific surface area of 1.4 ± 0.1 m2/g. The scaffold was cultured with primary human osteoblasts for 28 days, which showed enhanced cell adhesion and proliferation. The hierarchical structure was also beneficial for in vitro alkaline phosphate activity and mineralization and showed an increased expression of osteogenic protein and genes. Mesenchymal condensation markers related to osteoblastic differentiation (CDH2, RhoA, Rac1, and Cdc42) were upregulated in the hybrid construct, demonstrating that the MEW membrane provided an environment more suitable for the recapitulation of cell condensation, which in turn leads to higher osteogenic differentiation. In summary, this study demonstrated that the hierarchical scaffold developed in this paper leads to a significant improvement in the scaffold properties such as increased specific surface area, initial cell adhesion, cell proliferation, and in vitro osteogenesis.
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Affiliation(s)
- Greeshma Ratheesh
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland 4059, Australia
| | - Mengchao Shi
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland 4059, Australia
| | - Patrick Lau
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland 4059, Australia
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland 4059, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland 4059, Australia
| | - Cedryck Vaquette
- School of Dentistry, The University of Queensland (UQ), 288 Herston Rd, Hertson, Queensland 4006, Australia
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20
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Svozilová H, Plichta Z, Proks V, Studená R, Baloun J, Doubek M, Pospíšilová Š, Horák D. RGDS-Modified Superporous Poly(2-Hydroxyethyl Methacrylate)-Based Scaffolds as 3D In Vitro Leukemia Model. Int J Mol Sci 2021; 22:ijms22052376. [PMID: 33673496 PMCID: PMC7956824 DOI: 10.3390/ijms22052376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/05/2023] Open
Abstract
Superporous poly(2-hydroxyethyl methacrylate-co-2-aminoethyl methacrylate) (P(HEMA-AEMA)) hydrogel scaffolds are designed for in vitro 3D culturing of leukemic B cells. Hydrogel porosity, which influences cell functions and growth, is introduced by adding ammonium oxalate needle-like crystals in the polymerization mixture. To improve cell vitality, cell-adhesive Arg-Gly-Asp-Ser (RGDS) peptide is immobilized on the N-(γ-maleimidobutyryloxy)succinimide-activated P(HEMA-AEMA) hydrogels via reaction of SH with maleimide groups. This modification is especially suitable for the survival of primary chronic lymphocytic leukemia cells (B-CLLs) in 3D cell culture. No other tested stimuli (interleukin-4, CD40 ligand, or shaking) can further improve B-CLL survival or metabolic activity. Both unmodified and RGDS-modified P(HEMA-AEMA) scaffolds serve as a long-term (70 days) 3D culture platforms for HS-5 and M2-10B4 bone marrow stromal cell lines and MEC-1 and HG-3 B-CLL cell lines, although the adherent cells retain their physiological morphologies, preferably on RGDS-modified hydrogels. Moreover, the porosity of hydrogels allows direct cell lysis, followed by efficient DNA isolation from the 3D-cultured cells. P(HEMA-AEMA)-RGDS thus serves as a suitable 3D in vitro leukemia model that enables molecular and metabolic assays and allows imaging of cell morphology, interactions, and migration by confocal microscopy. Such applications can prospectively assist in testing of drugs to treat this frequently recurring or refractory cancer.
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Affiliation(s)
- Hana Svozilová
- Center of Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (H.S.); (R.S.); (J.B.); (M.D.); (Š.P.)
- Department of Internal Medicine—Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Jihlavská 20, 625 00 Brno, Czech Republic
| | - Zdeněk Plichta
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic; (Z.P.); (V.P.)
| | - Vladimír Proks
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic; (Z.P.); (V.P.)
| | - Radana Studená
- Center of Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (H.S.); (R.S.); (J.B.); (M.D.); (Š.P.)
| | - Jiří Baloun
- Center of Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (H.S.); (R.S.); (J.B.); (M.D.); (Š.P.)
| | - Michael Doubek
- Center of Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (H.S.); (R.S.); (J.B.); (M.D.); (Š.P.)
- Department of Internal Medicine—Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Jihlavská 20, 625 00 Brno, Czech Republic
| | - Šárka Pospíšilová
- Center of Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (H.S.); (R.S.); (J.B.); (M.D.); (Š.P.)
- Department of Internal Medicine—Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Jihlavská 20, 625 00 Brno, Czech Republic
| | - Daniel Horák
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic; (Z.P.); (V.P.)
- Correspondence: ; Tel.: +420-296-809-260
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21
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Laurent A, Abdel-Sayed P, Ducrot A, Hirt-Burri N, Scaletta C, Jaccoud S, Nuss K, de Buys Roessingh AS, Raffoul W, Pioletti D, von Rechenberg B, Applegate LA, Darwiche S. Development of Standardized Fetal Progenitor Cell Therapy for Cartilage Regenerative Medicine: Industrial Transposition and Preliminary Safety in Xenogeneic Transplantation. Biomolecules 2021; 11:250. [PMID: 33572428 PMCID: PMC7916236 DOI: 10.3390/biom11020250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/04/2021] [Accepted: 02/04/2021] [Indexed: 12/27/2022] Open
Abstract
Diverse cell therapy approaches constitute prime developmental prospects for managing acute or degenerative cartilaginous tissue affections, synergistically complementing specific surgical solutions. Bone marrow stimulation (i.e., microfracture) remains a standard technique for cartilage repair promotion, despite incurring the adverse generation of fibrocartilagenous scar tissue, while matrix-induced autologous chondrocyte implantation (MACI) and alternative autologous cell-based approaches may partly circumvent this effect. Autologous chondrocytes remain standard cell sources, yet arrays of alternative therapeutic biologicals present great potential for regenerative medicine. Cultured human epiphyseal chondro-progenitors (hECP) were proposed as sustainable, safe, and stable candidates for chaperoning cartilage repair or regeneration. This study describes the development and industrial transposition of hECP multi-tiered cell banking following a single organ donation, as well as preliminary preclinical hECP safety. Optimized cell banking workflows were proposed, potentially generating millions of safe and sustainable therapeutic products. Furthermore, clinical hECP doses were characterized as non-toxic in a standardized chorioallantoic membrane model. Lastly, a MACI-like protocol, including hECPs, was applied in a three-month GLP pilot safety evaluation in a caprine model of full-thickness articular cartilage defect. The safety of hECP transplantation was highlighted in xenogeneic settings, along with confirmed needs for optimal cell delivery vehicles and implantation techniques favoring effective cartilage repair or regeneration.
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Affiliation(s)
- Alexis Laurent
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland; (A.L.); (P.A.-S.); (A.D.); (N.H.-B.); (C.S.); (S.J.); (L.A.A.)
- Preclinical Research Department, LAM Biotechnologies SA, CH-1066 Épalinges, Switzerland
| | - Philippe Abdel-Sayed
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland; (A.L.); (P.A.-S.); (A.D.); (N.H.-B.); (C.S.); (S.J.); (L.A.A.)
| | - Aurélie Ducrot
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland; (A.L.); (P.A.-S.); (A.D.); (N.H.-B.); (C.S.); (S.J.); (L.A.A.)
| | - Nathalie Hirt-Burri
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland; (A.L.); (P.A.-S.); (A.D.); (N.H.-B.); (C.S.); (S.J.); (L.A.A.)
| | - Corinne Scaletta
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland; (A.L.); (P.A.-S.); (A.D.); (N.H.-B.); (C.S.); (S.J.); (L.A.A.)
| | - Sandra Jaccoud
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland; (A.L.); (P.A.-S.); (A.D.); (N.H.-B.); (C.S.); (S.J.); (L.A.A.)
- Laboratory of Biomechanical Orthopedics, Ecole Polytechnique Fédérale de Lausanne, CH-2002 Neuchâtel, Switzerland;
| | - Katja Nuss
- Musculoskeletal Research Unit, Zurich Tierspital, University of Zurich, CH-8952 Schlieren, Switzerland; (K.N.); (B.v.R.)
| | - Anthony S. de Buys Roessingh
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
| | - Wassim Raffoul
- Plastic, Reconstructive, and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
| | - Dominique Pioletti
- Laboratory of Biomechanical Orthopedics, Ecole Polytechnique Fédérale de Lausanne, CH-2002 Neuchâtel, Switzerland;
| | - Brigitte von Rechenberg
- Musculoskeletal Research Unit, Zurich Tierspital, University of Zurich, CH-8952 Schlieren, Switzerland; (K.N.); (B.v.R.)
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, CH-8057 Zurich, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland; (A.L.); (P.A.-S.); (A.D.); (N.H.-B.); (C.S.); (S.J.); (L.A.A.)
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, CH-8057 Zurich, Switzerland
- Oxford OSCAR Suzhou Center, Oxford University, Suzhou 215123, Jiangsu, China
| | - Salim Darwiche
- Musculoskeletal Research Unit, Zurich Tierspital, University of Zurich, CH-8952 Schlieren, Switzerland; (K.N.); (B.v.R.)
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, CH-8057 Zurich, Switzerland
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22
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Kang SM, Kim D, Lee JH, Takayama S, Park JY. Engineered Microsystems for Spheroid and Organoid Studies. Adv Healthc Mater 2021; 10:e2001284. [PMID: 33185040 PMCID: PMC7855453 DOI: 10.1002/adhm.202001284] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/01/2020] [Indexed: 01/09/2023]
Abstract
3D in vitro model systems such as spheroids and organoids provide an opportunity to extend the physiological understanding using recapitulated tissues that mimic physiological characteristics of in vivo microenvironments. Unlike 2D systems, 3D in vitro systems can bridge the gap between inadequate 2D cultures and the in vivo environments, providing novel insights on complex physiological mechanisms at various scales of organization, ranging from the cellular, tissue-, to organ-levels. To satisfy the ever-increasing need for highly complex and sophisticated systems, many 3D in vitro models with advanced microengineering techniques have been developed to answer diverse physiological questions. This review summarizes recent advances in engineered microsystems for the development of 3D in vitro model systems. The relationship between the underlying physics behind the microengineering techniques, and their ability to recapitulate distinct 3D cellular structures and functions of diverse types of tissues and organs are highlighted and discussed in detail. A number of 3D in vitro models and their engineering principles are also introduced. Finally, current limitations are summarized, and perspectives for future directions in guiding the development of 3D in vitro model systems using microengineering techniques are provided.
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Affiliation(s)
- Sung-Min Kang
- Department of Green Chemical Engineering, Sangmyung University, Cheonan, Chungnam, 31066, Republic of Korea
| | - Daehan Kim
- Department of Mechanical Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Ji-Hoon Lee
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, 30332, USA
- The Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Shuichi Takayama
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, 30332, USA
- The Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Joong Yull Park
- Department of Mechanical Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
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Madub K, Goonoo N, Gimié F, Ait Arsa I, Schönherr H, Bhaw-Luximon A. Green seaweeds ulvan-cellulose scaffolds enhance in vitro cell growth and in vivo angiogenesis for skin tissue engineering. Carbohydr Polym 2021; 251:117025. [DOI: 10.1016/j.carbpol.2020.117025] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/07/2020] [Accepted: 08/28/2020] [Indexed: 01/23/2023]
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Duguay BA, Lu L, Arizmendi N, Unsworth LD, Kulka M. The Possible Uses and Challenges of Nanomaterials in Mast Cell Research. THE JOURNAL OF IMMUNOLOGY 2020; 204:2021-2032. [PMID: 32253270 DOI: 10.4049/jimmunol.1800658] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 12/19/2019] [Indexed: 11/19/2022]
Abstract
Mast cells are tissue-resident immune cells that are involved in inflammation and fibrosis but also serve beneficial roles, including tissue maintenance, angiogenesis, pathogen clearance, and immunoregulation. Their multifaceted response and the ability of their mediators to target multiple organs and tissues means that mast cells play important roles in numerous conditions, including asthma, atopic dermatitis, drug sensitivities, ischemic heart disease, Alzheimer disease, arthritis, irritable bowel syndrome, infections (parasites, bacteria and viruses), and cancer. As a result, mast cells have become an important target for drug discovery and diagnostic research. Recent work has focused on applying novel nanotechnologies to explore cell biology. In this brief review, we will highlight the use of nanomaterials to modify mast cell functions and will discuss the potential of these technologies as research tools for understanding mast cell biology.
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Affiliation(s)
- Brett A Duguay
- Nanotechnology Research Centre, National Research Council Canada, Edmonton, Alberta T6G 2M9, Canada
| | - Lei Lu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, People's Republic of China
| | - Narcy Arizmendi
- Nanotechnology Research Centre, National Research Council Canada, Edmonton, Alberta T6G 2M9, Canada
| | - Larry D Unsworth
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada; and
| | - Marianna Kulka
- Nanotechnology Research Centre, National Research Council Canada, Edmonton, Alberta T6G 2M9, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
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25
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Barlian A, Judawisastra H, Ridwan A, Wahyuni AR, Lingga ME. Chondrogenic differentiation of Wharton's Jelly mesenchymal stem cells on silk spidroin-fibroin mix scaffold supplemented with L-ascorbic acid and platelet rich plasma. Sci Rep 2020; 10:19449. [PMID: 33173146 PMCID: PMC7656266 DOI: 10.1038/s41598-020-76466-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/21/2020] [Indexed: 01/08/2023] Open
Abstract
In this research, hWJ-MSCs were grown on silk scaffolds and induced towards chondrogenesis by supplementation with L-ascorbic acid (LAA) or platelet rich plasma (PRP). Silk scaffolds were fabricated with salt leaching method by mixing silk fibroin (SF) with silk spidroin (SS). The silk fibroin was obtained from Bombyx mori cocoon that had been degummed, and the silk spidroin was obtained from wild-type spider Argiope appensa. The effect of scaffold composition and inducer on cell proliferation was observed through MTT assay. The most optimal treatment then continued to be used to induce hWJ-MSC towards chondrogenic differentiation for 7 and 21 days. Scaffolds characterization showed that the scaffolds produced had 3D structure with interconnected pores, and all were biocompatible with hWJ-MSCs. Scaffold with the addition of 10% SS + 90% SF showed higher compressive strength and better pore interconnectivity in comparison to 100% silk fibroin scaffold. After 48 h, cells seeded on scaffold with spidroin and fibroin mix had flattened morphology in comparison to silk fibroin scaffold which appeared to be more rounded on the scaffold surface. Scaffold with 10% (w/w) of silk spidroin (SS) + 90% (w/w) of silk fibroin (SF) was the most optimal composition for cell proliferation. Immunocytochemistry of integrin β1 and RGD sequence, showed that scaffold with SS 10% provide better cell attachment with the presence of RGD sequence from the spidroin silk which could explain the higher cell proliferation than SF100% scaffold. Based on Alcian Blue staining and Collagen Type II immunocytochemistry (ICC), cells grown on 10% SS + 90% SF scaffold with 10% PRP supplementation were the most optimal to support chondrogenesis of hWJ-MSCs. These results showed that the addition of spidroin silk from A. appensa. had impact on scaffold compressive strength and chondrogenic differentiation of hWJ-MSC and had the potential for further development of bio-based material scaffold in cartilage tissue engineering.
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Affiliation(s)
- Anggraini Barlian
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia.
- Research Center for Nanosciences and Nanotechnology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia.
| | - Hermawan Judawisastra
- Faculty of Mechanical and Aerospace Engineering, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
| | - Ahmad Ridwan
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
| | - Antonia Ratih Wahyuni
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
| | - Meidiana Ebtayani Lingga
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
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26
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Laurent A, Hirt-Burri N, Scaletta C, Michetti M, de Buys Roessingh AS, Raffoul W, Applegate LA. Holistic Approach of Swiss Fetal Progenitor Cell Banking: Optimizing Safe and Sustainable Substrates for Regenerative Medicine and Biotechnology. Front Bioeng Biotechnol 2020; 8:557758. [PMID: 33195124 PMCID: PMC7644790 DOI: 10.3389/fbioe.2020.557758] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 08/21/2020] [Indexed: 12/17/2022] Open
Abstract
Safety, quality, and regulatory-driven iterative optimization of therapeutic cell source selection has constituted the core developmental bedrock for primary fetal progenitor cell (FPC) therapy in Switzerland throughout three decades. Customized Fetal Transplantation Programs were pragmatically devised as straightforward workflows for tissue procurement, traceability maximization, safety, consistency, and robustness of cultured progeny cellular materials. Whole-cell bioprocessing standardization has provided plethoric insights into the adequate conjugation of modern biotechnological advances with current restraining legislative, ethical, and regulatory frameworks. Pioneer translational advances in cutaneous and musculoskeletal regenerative medicine continuously demonstrate the therapeutic potential of FPCs. Extensive technical and clinical hindsight was gathered by managing pediatric burns and geriatric ulcers in Switzerland. Concomitant industrial transposition of dermal FPC banking, following good manufacturing practices, demonstrated the extensive potential of their therapeutic value. Furthermore, in extenso, exponential revalorization of Swiss FPC technology may be achieved via the renewal of integrative model frameworks. Consideration of both longitudinal and transversal aspects of simultaneous fetal tissue differential processing allows for a better understanding of the quasi-infinite expansion potential within multi-tiered primary FPC banking. Multiple fetal tissues (e.g., skin, cartilage, tendon, muscle, bone, lung) may be simultaneously harvested and processed for adherent cell cultures, establishing a unique model for sustainable therapeutic cellular material supply chains. Here, we integrated fundamental, preclinical, clinical, and industrial developments embodying the scientific advances supported by Swiss FPC banking and we focused on advances made to date for FPCs that may be derived from a single organ donation. A renewed model of single organ donation bioprocessing is proposed, achieving sustained standards and potential production of billions of affordable and efficient therapeutic doses. Thereby, the aim is to validate the core therapeutic value proposition, to increase awareness and use of standardized protocols for translational regenerative medicine, potentially impacting millions of patients suffering from cutaneous and musculoskeletal diseases. Alternative applications of FPC banking include biopharmaceutical therapeutic product manufacturing, thereby indirectly and synergistically enhancing the power of modern therapeutic armamentariums. It is hypothesized that a single qualifying fetal organ donation is sufficient to sustain decades of scientific, medical, and industrial developments, as technological optimization and standardization enable high efficiency.
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Affiliation(s)
- Alexis Laurent
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
- Tec-Pharma SA, Bercher, Switzerland
- LAM Biotechnologies SA, Épalinges, Switzerland
| | - Nathalie Hirt-Burri
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Corinne Scaletta
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Murielle Michetti
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Anthony S. de Buys Roessingh
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Wassim Raffoul
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
- Oxford Suzhou Center for Advanced Research, Science and Technology Co., Ltd., Oxford University, Suzhou, China
- Competence Center for Applied Biotechnology and Molecular Medicine, University of Zurich, Zurich, Switzerland
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27
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Theodoridis K, Aggelidou E, Manthou ME, Keklikoglou K, Tsimponis A, Demiri E, Bakopoulou A, Mihailidis A, Kritis A. An effective device and method for enhanced cell growth in 3D scaffolds: Investigation of cell seeding and proliferation under static and dynamic conditions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:111060. [PMID: 32993978 DOI: 10.1016/j.msec.2020.111060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/26/2020] [Accepted: 05/05/2020] [Indexed: 12/26/2022]
Abstract
Cell adhesion on 3D-scaffolds is a challenging task to succeed high cell densities and even cell distribution. We aimed to design a 3D-cell Culture Device (3D-CD) for static seeding and cultivation, to be used with any kind of scaffold, limiting cell loss and facilitating nutrient supply. 3D printing technology was used for both scaffold and device fabrication. Apart from testing the device, the purpose of this study was to assess and compare static and dynamic seeding and cultivation methods, of wet and dry scaffolds, under normoxic and hypoxic conditions and their effects on parameters such as cell seeding efficiency, cell distribution and cell proliferation. Human adipose tissue was harvested and cultured in 3D-printed poly(epsilon-caprolactone) scaffolds. Micro-CT scans were performed and projection images were reconstructed into cross section images. We created 3D images to visualize cell distribution and orientation inside the scaffolds. The group of prewetted scaffolds was the most favorable to cell attachment. The 3D-cell Culture Device (3D-CD) enhanced cell seeding efficiency with almost no cell loss. We suggest that the most favorable outcome can be produced with static seeding in the device for 24 h, followed either by static cultivation in the same device or by dynamic cultivation.
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Affiliation(s)
- Konstantinos Theodoridis
- Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece; cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece.
| | - Eleni Aggelidou
- Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece; cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece
| | - Maria-Eleni Manthou
- cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece; Laboratory of Histology, Embryology and Anthropology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece
| | - Kleoniki Keklikoglou
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), Thalassocosmos, 71003 Heraklion, Crete, Greece
| | - Antonios Tsimponis
- Department of Plastic Surgery, Medical School, Papageorgiou Hospital, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece
| | - Efterpi Demiri
- Department of Plastic Surgery, Medical School, Papageorgiou Hospital, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece
| | - Athina Bakopoulou
- cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece; Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), GR-54124 Thessaloniki, Greece
| | - Athanasios Mihailidis
- Laboratory of Machine Elements and Machine Design, School of Mechanical Engineering, Aristotle University of Thessaloniki (A.U.Th.), GR-54624 Thessaloniki, Greece
| | - Aristeidis Kritis
- Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece; cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Thessaloniki, Greece
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28
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Schmitz TC, Salzer E, Crispim JF, Fabra GT, LeVisage C, Pandit A, Tryfonidou M, Maitre CL, Ito K. Characterization of biomaterials intended for use in the nucleus pulposus of degenerated intervertebral discs. Acta Biomater 2020; 114:1-15. [PMID: 32771592 DOI: 10.1016/j.actbio.2020.08.001] [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: 04/27/2020] [Revised: 07/06/2020] [Accepted: 08/03/2020] [Indexed: 12/19/2022]
Abstract
Biomaterials for regeneration of the intervertebral disc must meet complex requirements conforming to biological, mechanical and clinical demands. Currently no consensus on their characterization exists. It is crucial to identify parameters and their method of characterization for accurate assessment of their potential efficacy, keeping in mind the translation towards clinical application. This review systematically analyses the characterization techniques of biomaterial systems that have been used for nucleus pulposus (NP) restoration and regeneration. Substantial differences in the approach towards assessment became evident, hindering comparisons between different materials with respect to their suitability for NP restoration and regeneration. We have analysed the current approaches and identified parameters necessary for adequate biomaterial characterization, with the clinical goal of functional restoration and biological regeneration of the NP in mind. Further, we provide guidelines and goals for their measurement. STATEMENT OF SIGNIFICANCE: Biomaterials intended for restoration of regeneration of the nucleus pulposus within the intervertebral disc must meet biological, biomechanical and clinical demands. Many materials have been investigated, but a lack of consensus on which parameters to evaluate leads to difficulties in comparing materials as well as mostly partial characterization of the materials in question. A gap between current methodology and clinically relevant and meaningful characterization is prevalent. In this article, we identify necessary methods and their implementation for complete biomaterial characterization in the context of clinical applicability. This will allow for a more unified approach to NP-biomaterials research within the field as a whole and enable comparative analysis of novel materials yet to be developed.
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Affiliation(s)
- Tara C Schmitz
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, Netherlands.
| | - Elias Salzer
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, Netherlands.
| | - João F Crispim
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, Netherlands.
| | - Georgina Targa Fabra
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, 7WQJ+8F Galway, Ireland.
| | - Catherine LeVisage
- Université de Nantes, INSERM UMR 1229, Regenerative Medicine and Skeleton, RMeS School of Dental Surgery, University of Nantes, 1 Place Ricordeau, 44300 Nantes, France.
| | - Abhay Pandit
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, 7WQJ+8F Galway, Ireland.
| | - Marianna Tryfonidou
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, Netherlands.
| | - Christine Le Maitre
- Biomolecular Sciences Research Centre Sheffield Hallam University, City Campus, Howard Street, S1 1WB Sheffield, United Kingdom.
| | - Keita Ito
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, Netherlands.
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29
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Ranjan VD, Qiu L, Lee JWL, Chen X, Jang SE, Chai C, Lim KL, Tan EK, Zhang Y, Huang WM, Zeng L. A microfiber scaffold-based 3D in vitro human neuronal culture model of Alzheimer's disease. Biomater Sci 2020; 8:4861-4874. [PMID: 32789337 DOI: 10.1039/d0bm00833h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Increasing evidence indicates superiority of three-dimensional (3D) in vitro cell culture systems over conventional two-dimensional (2D) monolayer cultures in mimicking native in vivo microenvironments. Tissue-engineered 3D culture models combined with stem cell technologies have advanced Alzheimer's disease (AD) pathogenesis studies. However, existing 3D neuronal models of AD overexpress mutant genes or have heterogeneities in composition, biological properties and cell differentiation stages. Here, we encapsulate patient induced pluripotent stem cell (iPSC) derived neural progenitor cells (NPC) in poly(lactic-co-glycolic acid) (PLGA) microtopographic scaffolds fabricated via wet electrospinning to develop a novel 3D culture model of AD. First, we enhanced cellular infiltration and distribution inside the scaffold by optimizing various process parameters such as fiber diameter, pore size, porosity and hydrophilicity. Next, we compared key neural stem cell features including viability, proliferation and differentiation in 3D culture with 2D monolayer controls. The 3D microfibrous substrate reduces cell proliferation and significantly accelerates neuronal differentiation within seven days of culture. Furthermore, 3D culture spontaneously enhanced pathogenic amyloid-beta 42 (Aβ42) and phospho-tau levels in differentiated neurons carrying familial AD (FAD) mutations, compared with age-matched healthy controls. Overall, our tunable scaffold-based 3D neuronal culture platform serves as a suitable in vitro model that robustly recapitulates and accelerates the pathogenic characteristics of FAD-iPSC derived neurons.
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Affiliation(s)
- Vivek Damodar Ranjan
- NTU Institute for Health Technologies, Interdisciplinary Graduate School, Nanyang Technological University, Singapore 639798, Singapore
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30
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Zurina IM, Presniakova VS, Butnaru DV, Svistunov AA, Timashev PS, Rochev YA. Tissue engineering using a combined cell sheet technology and scaffolding approach. Acta Biomater 2020; 113:63-83. [PMID: 32561471 DOI: 10.1016/j.actbio.2020.06.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 12/13/2022]
Abstract
Cell sheet technology has remained quite popular among tissue engineering techniques over the last several years. Meanwhile, there is an apparent trend in modern scientific research towards combining different approaches and strategies. Accordingly, a large body of work has arisen where cell sheets are used not as separate structures, but in combination with scaffolds as supporting constructions. The aim of this review is to analyze the intersection of these two vast areas of tissue engineering described in the literature mainly within the last five years. Some practical and technical details are emphasized to provide information that can be useful in research design and planning. The first part of the paper describes the general issues concerning the use of combined technology, its advantages and limitations in comparison with those of other tissue engineering approaches. Next, the detailed literature analysis of in vivo studies aimed at the regeneration of different tissues is performed. A significant part of this section concerns bone regeneration. In addition to that, other connective tissue structures, including articular cartilage and fibrocartilage, ligaments and tendons, and some soft tissues are discussed. STATEMENT OF SIGNIFICANCE: This paper describes the intersection of two technologies used in designing of tissue-engineered constructions for regenerative medicine: cell sheets as extracellular matrix-rich structures and supporting scaffolds as essentials in tissue engineering. A large number of reviews are devoted to each of these scientific problems. However, the solution of complex problems of tissue engineering requires an integrated approach that includes both three-dimensional scaffolds and cell sheets. This manuscript serves as a description of advantages and limitations of this method, its use in regeneration of bones, connective tissues and soft tissues and some other details.
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Affiliation(s)
- Irina M Zurina
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia; FSBSI Institute of General Pathology and Pathophysiology, 125315, 8 Baltiyskaya St., Moscow, Russia; FSBEI FPE "Russian Medical Academy of Continuous Professional Education" of the Ministry of Healthcare of Russia, 125993, 2/1-1 Barrikadnaya St., Moscow, Russia
| | - Viktoria S Presniakova
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia
| | - Denis V Butnaru
- Sechenov First Moscow State Medical University (Sechenov University), 119991, 8-2 Trubetskaya St., Moscow, Russia
| | - Andrey A Svistunov
- Sechenov First Moscow State Medical University (Sechenov University), 119991, 8-2 Trubetskaya St., Moscow, Russia
| | - Peter S Timashev
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia; Institute of Photonic Technologies, Research Center "Crystallography and Photonics", Russian Academy of Sciences, 108840, 2 Pionerskaya st., Troitsk, Moscow, Russia; Department of Polymers and Composites, N.N. Semenov Institute of Chemical Physics, 119991 4 Kosygin st., Moscow, Russia; Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1‑3, Moscow 119991, Russia.
| | - Yury A Rochev
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991 8-2 Trubetskaya St., Moscow, Russia; Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway H91 W2TY, Ireland
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31
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Sugar-cane bagasse cellulose-based scaffolds promote multi-cellular interactions, angiogenesis and reduce inflammation for skin tissue regeneration. Int J Biol Macromol 2020; 157:296-310. [DOI: 10.1016/j.ijbiomac.2020.04.176] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 03/13/2020] [Accepted: 04/21/2020] [Indexed: 12/20/2022]
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32
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Blaudez F, Ivanovski S, Ipe D, Vaquette C. A comprehensive comparison of cell seeding methods using highly porous melt electrowriting scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111282. [PMID: 32919643 DOI: 10.1016/j.msec.2020.111282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/30/2020] [Accepted: 07/08/2020] [Indexed: 12/30/2022]
Abstract
Cell seeding is challenging in the case of additively manufactured 3-dimensional scaffolds, as the open macroscopic pore network impedes the retention of the seeding solution. The present study aimed at comparing several seeding conditions (no fetal bovine serum, 10% or 100% serum) and methods (Static seeding in Tissue Culture Treated plate (CT), Static seeding of the MES in non-Culture Treated plate (nCT), Seeding in nCT plate placed on an orbital shaker at 20 rpm (nCTR), Static seeding of the MES previously incubated with 100% FBS for 1 h to allow for protein adsorption (FBS)) commonly utilised in tissue engineering using highly porous melt electrowritten scaffolds, assessing their seeding efficacy, cell distribution homogeneity and reproducibility. Firstly, we demonstrated that the incubation in 100% serum was superior to the 10% serum pre-incubation and that 1 h only was sufficient to obtain enhanced cell attachment. We further compared this technique to the other methods and demonstrated significant and beneficial impact of the 100% serum pre-incubation, which resulted in enhanced efficacy, homogeneous cell distribution and high reproducibility, leading to accelerated colonisation/maturation of the tissue engineered constructs. We further showed the superior performance of this method using 3D-printed scaffolds also made of different polymers, demonstrating its capacity for up-scaling. Therefore, the pre-incubation of the scaffold in 100% serum is a simple yet highly effective method for enhancing cell adhesion and ensuring seeding reproducibility. This is crucial for tissue engineering applications, especially when cell availability is scarce, and for product standardisation from a translational perspective.
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Affiliation(s)
- Fanny Blaudez
- School of Dentistry and Oral Health, Gold Coast campus, Griffith University, QLD 4222, Australia
| | - Saso Ivanovski
- The University of Queensland, School of Dentistry, Herston, Queensland, Australia
| | - Deepak Ipe
- School of Dentistry and Oral Health, Gold Coast campus, Griffith University, QLD 4222, Australia
| | - Cedryck Vaquette
- The University of Queensland, School of Dentistry, Herston, Queensland, Australia.
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33
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Melke J, Zhao F, Ito K, Hofmann S. Orbital seeding of mesenchymal stromal cells increases osteogenic differentiation and bone-like tissue formation. J Orthop Res 2020; 38:1228-1237. [PMID: 31922286 PMCID: PMC7317919 DOI: 10.1002/jor.24583] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 12/12/2019] [Indexed: 02/04/2023]
Abstract
In bone tissue engineering (TE), an efficient seeding and homogenous distribution of cells is needed to avoid cell loss and damage as well as to facilitate tissue development. Dynamic seeding methods seem to be superior to the static ones because they tend to result in a more homogeneous cell distribution by using kinetic forces. However, most dynamic seeding techniques are elaborate or require special equipment and its influence on the final bone tissue-engineered construct is not clear. In this study, we applied a simple, dynamic seeding method using an orbital shaker to seed human bone marrow-derived mesenchymal stromal cells (hBMSCs) on silk fibroin scaffolds. Significantly higher cell numbers with a more homogenous cell distribution, increased osteogenic differentiation, and mineral deposition were observed using the dynamic approach both for 4 and 6 hours as compared to the static seeding method. The positive influence of dynamic seeding could be attributed to both cell density and distribution but also nutrient supply during seeding and shear stresses (0.0-3.0 mPa) as determined by computational simulations. The influence of relevant mechanical stimuli during seeding should be investigated in the future, especially regarding the importance of mechanical cues for bone TE applications. Our results highlight the importance of adequate choice of seeding method and its impact on developing tissue-engineered constructs. The application of this simple seeding technique is not only recommended for bone TE but can also be used for seeding similar porous scaffolds with hBMSCs in other TE fields.
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Affiliation(s)
- Johanna Melke
- Orthopaedic BiomechanicsDepartment of Biomedical EngineeringEindhoven University of TechnologyEindhovenThe Netherlands,Institute for Complex Molecular SystemsEindhoven University of TechnologyEindhovenThe Netherlands
| | - Feihu Zhao
- Orthopaedic BiomechanicsDepartment of Biomedical EngineeringEindhoven University of TechnologyEindhovenThe Netherlands,Institute for Complex Molecular SystemsEindhoven University of TechnologyEindhovenThe Netherlands
| | - Keita Ito
- Orthopaedic BiomechanicsDepartment of Biomedical EngineeringEindhoven University of TechnologyEindhovenThe Netherlands,Institute for Complex Molecular SystemsEindhoven University of TechnologyEindhovenThe Netherlands
| | - Sandra Hofmann
- Orthopaedic BiomechanicsDepartment of Biomedical EngineeringEindhoven University of TechnologyEindhovenThe Netherlands,Institute for Complex Molecular SystemsEindhoven University of TechnologyEindhovenThe Netherlands
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Matsuno K, Saotome T, Shimada N, Nakamura K, Tabata Y. Effect of cell seeding methods on the distribution of cells into the gelatin hydrogel nonwoven fabric. Regen Ther 2020; 14:160-164. [PMID: 32110685 PMCID: PMC7033290 DOI: 10.1016/j.reth.2020.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/24/2019] [Accepted: 01/19/2020] [Indexed: 10/25/2022] Open
Affiliation(s)
- Kumiko Matsuno
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Toshiki Saotome
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Naoki Shimada
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Koichiro Nakamura
- Research and Development Center, The Japan Wool Textile Co., Ltd., 440, Funamoto, Yoneda-cho, Kakogawa, Hyogo, 675-0053, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yasuhiko Tabata
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
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Martelli G, Bloise N, Merlettini A, Bruni G, Visai L, Focarete ML, Giacomini D. Combining Biologically Active β-Lactams Integrin Agonists with Poly(l-lactic acid) Nanofibers: Enhancement of Human Mesenchymal Stem Cell Adhesion. Biomacromolecules 2020; 21:1157-1170. [PMID: 32011862 PMCID: PMC7997109 DOI: 10.1021/acs.biomac.9b01550] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
Regulating
stem cell adhesion and growth onto functionalized biomaterial
scaffolds is an important issue in the field of tissue engineering
and regenerative medicine. In this study, new electrospun scaffolds
of poly(l-lactic acid) (PLLA), as bioresorbable polymer,
and β-lactam compounds agonists of selected integrins, as functional
components with cell adhesive properties, are designed. The new β-lactam-PLLA
scaffolds contribute significantly in guiding protein translation
involved in human bone marrow mesenchymal stem cells (hBM-MSC) adhesion
and integrin gene expression. Scanning electron microscopy, confocal
laser scanning microscopy, and Western Blot analyses reveal that GM18-PLLA
shows the best results, promoting cell adhesion by significantly driving
changes in focal adhesion proteins distribution (β1 integrin and vinculin) and activation (pFAK), with a notable increase
of GM18-targets subunits integrin gene expression, α4 and β1. These novel functionalized submicrometric
fibrous scaffolds demonstrate, for the first time, the powerful combination
of selective β-lactams agonists of integrins with biomimetic
scaffolds, suggesting a designed rule that could be suitably applied
to tissue repair and regeneration.
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Affiliation(s)
- Giulia Martelli
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Nora Bloise
- Department of Molecular Medicine (DMM), Biochemistry Unit, Center for Health Technologies (CHT), UdR INSTM University of Pavia, Viale Taramelli 3/B, 27100 Pavia, Italy.,Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri S.p.A, IRCCS, Via S. Boezio 28, 27100 Pavia, Italy
| | - Andrea Merlettini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Giovanna Bruni
- Department of Chemistry, Section of Physical Chemistry, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine (DMM), Biochemistry Unit, Center for Health Technologies (CHT), UdR INSTM University of Pavia, Viale Taramelli 3/B, 27100 Pavia, Italy.,Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri S.p.A, IRCCS, Via S. Boezio 28, 27100 Pavia, Italy
| | - Maria Letizia Focarete
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Daria Giacomini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
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36
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Preparation and characterization of cellulose acetate-Laponite® composite membranes produced by supercritical phase inversion. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2019.104651] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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37
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Bhartiya A, Madi K, Disney CM, Courtois L, Jupe A, Zhang F, Bodey AJ, Lee P, Rau C, Robinson IK, Yusuf M. Phase-contrast 3D tomography of HeLa cells grown in PLLA polymer electrospun scaffolds using synchrotron X-rays. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:158-163. [PMID: 31868748 DOI: 10.1107/s1600577519015583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Advanced imaging is useful for understanding the three-dimensional (3D) growth of cells. X-ray tomography serves as a powerful noninvasive, nondestructive technique that can fulfill these purposes by providing information about cell growth within 3D platforms. There are a limited number of studies taking advantage of synchrotron X-rays, which provides a large field of view and suitable resolution to image cells within specific biomaterials. In this study, X-ray synchrotron radiation microtomography at Diamond Light Source and advanced image processing were used to investigate cellular infiltration of HeLa cells within poly L-lactide (PLLA) scaffolds. This study demonstrates that synchrotron X-rays using phase contrast is a useful method to understand the 3D growth of cells in PLLA electrospun scaffolds. Two different fiber diameter (2 and 4 µm) scaffolds with different pore sizes, grown over 2, 5 and 8 days in vitro, were examined for infiltration and cell connectivity. After performing visualization by segmentation of the cells from the fibers, the results clearly show deeper cell growth and higher cellular interconnectivity in the 4 µm fiber diameter scaffold. This indicates the potential for using such 3D technology to study cell-scaffold interactions for future medical use.
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Affiliation(s)
- A Bhartiya
- London Centre for Nanotechnology, University College London, London WC1H 0AH, UK
| | - K Madi
- 3DMagination Ltd, Atlas Building, Fermi Avenue, Harwell, Didcot OX11 0QX, UK
| | - C M Disney
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, UK
| | - L Courtois
- 3DMagination Ltd, Atlas Building, Fermi Avenue, Harwell, Didcot OX11 0QX, UK
| | - A Jupe
- Department of Applied Computing, The University of Buckingham, UK
| | - F Zhang
- London Centre for Nanotechnology, University College London, London WC1H 0AH, UK
| | - A J Bodey
- Diamond Light Source, Oxfordshire OX11 0DE, UK
| | - P Lee
- Mechanical Engineering, University College London, London WC1E 7JE, UK
| | - C Rau
- Diamond Light Source, Oxfordshire OX11 0DE, UK
| | - I K Robinson
- London Centre for Nanotechnology, University College London, London WC1H 0AH, UK
| | - M Yusuf
- London Centre for Nanotechnology, University College London, London WC1H 0AH, UK
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38
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Cámara-Torres M, Sinha R, Mota C, Moroni L. Improving cell distribution on 3D additive manufactured scaffolds through engineered seeding media density and viscosity. Acta Biomater 2020; 101:183-195. [PMID: 31731025 DOI: 10.1016/j.actbio.2019.11.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/21/2019] [Accepted: 11/08/2019] [Indexed: 11/25/2022]
Abstract
In order to ensure the long-term in vitro and in vivo functionality of cell-seeded 3D scaffolds, an effective and reliable method to control cell seeding efficiency and distribution is crucial. Static seeding on 3D additive manufactured scaffolds made of synthetic polymers still remains challenging, as it often results in poor cell attachment, high cell sedimentation and non-uniform cell distribution, due to gravity and to the intrinsic macroporosity and surface chemical properties of the scaffolds. In this study, the biocompatible macromolecules dextran and Ficoll (Ficoll-Paque) were used for the first time as temporary supplements to alter the viscosity and density of the seeding media, respectively, and improve the static seeding output. The addition of these macromolecules drastically reduced the cell sedimentation velocities, allowing for homogeneous cell attachment to the scaffold filaments. Both dextran and Ficoll-Paque -based seeding methods supported human mesenchymal stromal cells viability and osteogenic differentiation post-seeding. Interestingly, the improved cell distribution led to increased matrix production and mineralization compared to scaffolds seeded by conventional static method. These results suggest a simple and universal method for an efficient seeding of 3D additive manufactured scaffolds, independent of their material and geometrical properties, and applicable for bone and various other tissue regeneration. STATEMENT OF SIGNIFICANCE: Additive manufacturing has emerged as one of the desired technologies to fabricate complex and patient-specific 3D scaffolds for bone regeneration. Along with the technology, new synthetic polymeric materials have been developed to meet processability requirements, as well as the mechanical properties and biocompatibility necessary for the application. Yet, there is still lack of methodology for a universal cell seeding method applicable to all additive manufactured 3D scaffolds regardless of their characteristics. We believe that our simple and reliable method, which is based on adjusting the cell settling velocity to aid cell attachment, could potentially help to maximize the efficiency, and therefore, functionality of cell-seeded constructs. This is of great importance when aiming for both in vitro and future clinical applications.
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39
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Optimizing cell encapsulation condition in ECM-Collagen I hydrogels to support 3D neuronal cultures. J Neurosci Methods 2020; 329:108460. [DOI: 10.1016/j.jneumeth.2019.108460] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/30/2019] [Accepted: 10/07/2019] [Indexed: 01/05/2023]
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40
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Tabernero A, Baldino L, González-Garcinuño Á, Cardea S, del Valle EMM, Reverchon E. Supercritical CO2 assisted formation of composite membranes containing an amphiphilic fructose-based polymer. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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41
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Mirzaeian L, Eivazkhani F, Hezavehei M, Moini A, Esfandiari F, Valojerdi MR, Fathi R. Optimizing The Cell Seeding Protocol to Human Decellularized Ovarian Scaffold: Application of Dynamic System for Bio-Engineering. CELL JOURNAL 2019; 22:227-235. [PMID: 31721538 PMCID: PMC6874796 DOI: 10.22074/cellj.2020.6604] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 02/26/2019] [Indexed: 12/22/2022]
Abstract
Objective Decellularized tissue scaffolds provide an extracellular matrix to control stem cells differentiation toward
specific lineages. The application of mesenchymal stem cells for artificial ovary production may enhance ex vivo functions
of the ovary. On the other hand, the scaffold needs interaction and integration with cells. Thus, the development of
ovarian engineered constructs (OVECs) requires the use of efficient methods for seeding of the cells into the ovarian
and other types of scaffolds. The main goal of the present study was to develop an optimized culture system for efficient
seeding of peritoneum mesenchymal stem cells (PMSCs) into human decellularized ovarian scaffold.
Materials and Methods In this experimental study, three methods were used for cellular seeding including rotational
(spinner flask) and static (conventional and injection) seeding cultures. OVECs were evaluated with Hematoxylin and
Eosin staining and viability analyses for the seeded PMSCs. Then, immunohistochemistry analysis was performed
using the best method of cellular seeding for primordial germ cell-like cells, mesenchymal stem cells and proliferation
markers. Stereology analysis was also performed for the number of penetrated cells into the OVECs.
Results Our results showed that rotational seeding increases the permeability of PMSCs into the scaffold and survival
rate of the seeded PMSCs, comparing to the other methods. On the other hand, rotationally seeded PMSCs had a more
favorable capability of proliferation with Ki67 expression and differentiation to ovarian specific cells with expression
of primordial germ cell line markers without mesenchymal stem cells markers production. Furthermore, stereology
showed a more favorable distribution of PMSCs along the outer surfaces of the OVEC with further distribution at the
central part of the scaffold. The average total cell values were determined 2142187 cells/mm3 on each OVEC.
Conclusion The rotational seeding method is a more favorable approach to cell seeding into ovarian decellularized
tissue than static seeding.
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Affiliation(s)
- Leila Mirzaeian
- Department of Developmental Biology, University of Science and Culture, Tehran, Iran.,Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Farideh Eivazkhani
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR,Tehran, Iran
| | - Maryam Hezavehei
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Gynecology and Obstetrics, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Vali-e-Asr Reproductive Health Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Esfandiari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mojtaba Rezazadeh Valojerdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Anatomy, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Rouhollah Fathi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
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Polycaprolactone/gelatin-based scaffolds with tailored performance: in vitro and in vivo validation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110296. [PMID: 31761169 DOI: 10.1016/j.msec.2019.110296] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/16/2019] [Accepted: 10/07/2019] [Indexed: 12/16/2022]
Abstract
Nanofibrous scaffolds composed of polycaprolactone (PCL) and gelatin (Ge) were obtained through a hydrolytic assisted electrospinning process. The PCL-to-Ge proportion (100/0 to 20/80), as well as the dissolution time (24, 48, 72, 96, 120 h) into a 1:1 formic/acetic acid solvent before electrospinning were modified to obtain the different samples. A strong influence of these factors on the physicochemical properties of the scaffolds was observed. Higher Ge percentage reduced crystallinity, allowed a uniform morphology and increased water contact angle. The increase in the dissolution time considerably reduced the molar mass and, subsequently, fibre diameter and crystallinity were affected. During in vitro biocompatibility tests, higher cell adhesion and proliferation were found for the 60/40, 50/50 and 40/60 PCL/Ge compositions that was corroborated by MTT assay, fluorescence and microscopy. A weakened structure, more labile to the in vitro degradation in physiologic conditions was found for these compositions with higher dissolution times (72 and 96 h). Particularly, the 40/60 PCL/Ge scaffolds revealed an interesting progressive degradation behaviour as a function of the dissolution time. Moreover, these scaffolds were non-inflammatory, as revealed by the pyrogen test and after the 15-day subcutaneous in vivo implantation in mice. Finally, a reduction of the scar tissue area after infarction was found for the 40/60 PCL/Ge scaffolds electrospun after 72 h implanted in rat hearts. These results are especially interesting and represent a feasible way to avoid undesired inflammatory reactions during the scaffold assimilation.
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43
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Krause AL, Beliaev D, Van Gorder RA, Waters SL. Lattice and continuum modelling of a bioactive porous tissue scaffold. MATHEMATICAL MEDICINE AND BIOLOGY-A JOURNAL OF THE IMA 2019; 36:325-360. [PMID: 30107530 DOI: 10.1093/imammb/dqy012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 01/18/2018] [Accepted: 07/16/2018] [Indexed: 12/29/2022]
Abstract
A contemporary procedure to grow artificial tissue is to seed cells onto a porous biomaterial scaffold and culture it within a perfusion bioreactor to facilitate the transport of nutrients to growing cells. Typical models of cell growth for tissue engineering applications make use of spatially homogeneous or spatially continuous equations to model cell growth, flow of culture medium, nutrient transport and their interactions. The network structure of the physical porous scaffold is often incorporated through parameters in these models, either phenomenologically or through techniques like mathematical homogenization. We derive a model on a square grid lattice to demonstrate the importance of explicitly modelling the network structure of the porous scaffold and compare results from this model with those from a modified continuum model from the literature. We capture two-way coupling between cell growth and fluid flow by allowing cells to block pores, and by allowing the shear stress of the fluid to affect cell growth and death. We explore a range of parameters for both models and demonstrate quantitative and qualitative differences between predictions from each of these approaches, including spatial pattern formation and local oscillations in cell density present only in the lattice model. These differences suggest that for some parameter regimes, corresponding to specific cell types and scaffold geometries, the lattice model gives qualitatively different model predictions than typical continuum models. Our results inform model selection for bioactive porous tissue scaffolds, aiding in the development of successful tissue engineering experiments and eventually clinically successful technologies.
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Affiliation(s)
- Andrew L Krause
- Mathematical Institute, Andrew Wiles Building, University of Oxford, Radcliffe Observatory Quarter, Woodstock Rd, UK
| | - Dmitry Beliaev
- Mathematical Institute, Andrew Wiles Building, University of Oxford, Radcliffe Observatory Quarter, Woodstock Rd, UK
| | - Robert A Van Gorder
- Mathematical Institute, Andrew Wiles Building, University of Oxford, Radcliffe Observatory Quarter, Woodstock Rd, UK
| | - Sarah L Waters
- Mathematical Institute, Andrew Wiles Building, University of Oxford, Radcliffe Observatory Quarter, Woodstock Rd, UK
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44
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Schmid J, Schwarz S, Fischer M, Sudhop S, Clausen-Schaumann H, Schieker M, Huber R. A laser-cutting-based manufacturing process for the generation of three-dimensional scaffolds for tissue engineering using Polycaprolactone/Hydroxyapatite composite polymer. J Tissue Eng 2019; 10:2041731419859157. [PMID: 31384416 PMCID: PMC6651657 DOI: 10.1177/2041731419859157] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 06/04/2019] [Indexed: 12/15/2022] Open
Abstract
A manufacturing process for sheet-based stacked scaffolds (SSCs) based on laser-cutting (LC) was developed. The sheets consist of Polycaprolactone/Hydroxyapatite (PCL/HA) composite material. Single sheets were cut from a PCL/HA foil and stacked to scaffolds with interconnecting pores of defined sizes. HA quantities up to 50% were processable with high reproducibility, while the accuracy was dependent on the applied laser power. The smallest achievable pore sizes were about 40 µm, while the smallest stable solid structures were about 125 µm. The human mesenchymal stem cell line SCP-1 was cultured on the manufactured PCL/HA scaffolds. The cells developed a natural morphology and were able to differentiate to functional osteoblasts. The generation of PCL/HA SSCs via LC offers new possibilities for tissue engineering (TE) approaches. It is reliable and fast, with high resolution. The SSC approach allows for facile cell seeding and analysis of cell fate within the three-dimensional cell culture, thus allowing for the generation of functional tissue constructs.
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Affiliation(s)
- Jakob Schmid
- Center for Applied Tissue Engineering and Regenerative Medicine (CANTER), University of Applied Sciences Munich, Munich, Germany.,Laboratory of Experimental Surgery and Regenerative Medicine (ExperiMed), Ludwig-Maximilians University Munich, Munich, Germany.,Department of Industrial Engineering and Management, University of Applied Sciences Munich, Munich, Germany
| | - Sascha Schwarz
- Center for Applied Tissue Engineering and Regenerative Medicine (CANTER), University of Applied Sciences Munich, Munich, Germany.,Department of Mechanical Engineering, Technical University of Munich, Garching, Germany
| | - Martina Fischer
- Department of Industrial Engineering and Management, University of Applied Sciences Munich, Munich, Germany
| | - Stefanie Sudhop
- Center for Applied Tissue Engineering and Regenerative Medicine (CANTER), University of Applied Sciences Munich, Munich, Germany.,Center for Nanoscience (CeNS), Ludwig Maximilian University of Munich, Munich, Germany
| | - Hauke Clausen-Schaumann
- Center for Applied Tissue Engineering and Regenerative Medicine (CANTER), University of Applied Sciences Munich, Munich, Germany.,Center for Nanoscience (CeNS), Ludwig Maximilian University of Munich, Munich, Germany
| | - Matthias Schieker
- Laboratory of Experimental Surgery and Regenerative Medicine (ExperiMed), Ludwig-Maximilians University Munich, Munich, Germany
| | - Robert Huber
- Center for Applied Tissue Engineering and Regenerative Medicine (CANTER), University of Applied Sciences Munich, Munich, Germany.,Department of Industrial Engineering and Management, University of Applied Sciences Munich, Munich, Germany
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Firouzian KF, Zhang T, Zhang H, Song Y, Su X, Lin F. An Image-Guided Intrascaffold Cell Assembly Technique for Accurate Printing of Heterogeneous Tissue Constructs. ACS Biomater Sci Eng 2019; 5:3499-3510. [PMID: 33405733 DOI: 10.1021/acsbiomaterials.9b00318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
For tissue engineering and regenerative medicine, creating thick and heterogeneous scaffold-based tissue constructs requires deep and precise multicellular deposition. Traditional cell seeding strategies lack the ability to create multicellular tissue constructs with high cell penetration and distribution, while emerging strategies aim to simultaneously combine cell-laden tissue segments with scaffold fabrication. Here we describe a technique that allows for three-dimensional (3D) intrascaffold cell assembly in which scaffolds are prefabricated and pretreated, followed by accurate cell distribution within the scaffold using an image-guided technique. This two-step process yields less limitation in scaffold material choice as well as additional treatments, provides accurate cell distribution, and has less potential to harm cells. The image processing technique captures a 2D geometric image of the scaffold, followed by a series of processes, mainly including grayscale transformation, threshold segmentation, and boundary extraction, to ultimately locate scaffold macropore centroids. Coupled with camera calibration data, accurate 3D cell assembly pathway plans can be made. Intrascaffold assembly parameter optimization and complex intrascaffold gradient, multidirectional, and vascular structure assembly were studied. Demonstration was also made with path planning and cell assembly experiments using NIH3T3-cell-laden hydrogels and collagen-coated poly(lactic-co-glycolic acid) (PLGA) scaffolds. Experiments with CellTracker fluorescent monitoring, live/dead staining, and phalloidin-F-actin/DAPI immunostaining and comparison with two control groups (bioink manual injection and cell suspension static surface pipetting) showed accurate cell distribution and positioning and high cell viability (>93%). The PrestoBlue assay showed obvious cell proliferation over seven culture days in vitro. This technique provides an accurate method to aid simple and complex cell colonization with variant depth within 3D-scaffold-based constructs using multiple cells. The modular method can be used with any existing printing platform and shows potential in facilitating direct spatial organization and hierarchal 3D assembly of multiple cells and/or drugs within scaffolds for further tissue engineering studies and clinical applications.
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Affiliation(s)
- Kevin F Firouzian
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,111 "Biomanufacturing and Engineering Living Systems" Innovation International Talents Base, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Ting Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,111 "Biomanufacturing and Engineering Living Systems" Innovation International Talents Base, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Hefeng Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Yu Song
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,111 "Biomanufacturing and Engineering Living Systems" Innovation International Talents Base, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Xiaolei Su
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,111 "Biomanufacturing and Engineering Living Systems" Innovation International Talents Base, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Feng Lin
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.,111 "Biomanufacturing and Engineering Living Systems" Innovation International Talents Base, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
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Kankala RK, Zhao J, Liu CG, Song XJ, Yang DY, Zhu K, Wang SB, Zhang YS, Chen AZ. Highly Porous Microcarriers for Minimally Invasive In Situ Skeletal Muscle Cell Delivery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901397. [PMID: 31066236 PMCID: PMC6750270 DOI: 10.1002/smll.201901397] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 04/12/2019] [Indexed: 05/19/2023]
Abstract
Microscale cell carriers have recently garnered enormous interest in repairing tissue defects by avoiding substantial open surgeries using implants for tissue regeneration. In this study, the highly open porous microspheres (HOPMs) are fabricated using a microfluidic technique for harboring proliferating skeletal myoblasts and evaluating their feasibility toward cell delivery application in situ. These biocompatible HOPMs with particle sizes of 280-370 µm possess open pores of 10-80 µm and interconnected paths. Such structure of the HOPMs conveniently provide a favorable microenvironment, where the cells are closely arranged in elongated shapes with the deposited extracellular matrix, facilitating cell adhesion and proliferation, as well as augmented myogenic differentiation. Furthermore, in vivo results in mice confirm improved cell retention and vascularization, as well as partial myoblast differentiation. These modular cell-laden microcarriers potentially allow for in situ tissue construction after minimally invasive delivery providing a convenient means for regeneration medicine.
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Affiliation(s)
- Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, 361021, P. R. China
| | - Jia Zhao
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Chen-Guang Liu
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Xiao-Jie Song
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Da-Yun Yang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, 350108, P. R. China
| | - Kai Zhu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, P. R. China
| | - Shi-Bin Wang
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, 361021, P. R. China
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Ai-Zheng Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, 361021, P. R. China
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Baird A, Dominguez Falcon N, Saeed A, Guest DJ. Biocompatible Three-Dimensional Printed Thermoplastic Scaffold for Osteoblast Differentiation of Equine Induced Pluripotent Stem Cells. Tissue Eng Part C Methods 2019; 25:253-261. [DOI: 10.1089/ten.tec.2018.0343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Arabella Baird
- Centre for Preventive Medicine, Animal Health Trust, Newmarket, United Kingdom
| | | | - Aram Saeed
- School of Pharmacy, University of East Anglia, Norwich, United Kingdom
| | - Deborah Jane Guest
- Centre for Preventive Medicine, Animal Health Trust, Newmarket, United Kingdom
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Anindyajati A, Boughton P, Ruys AJ. Mechanical and Cytocompatibility Evaluation of UHMWPE/PCL/Bioglass ® Fibrous Composite for Acetabular Labrum Implant. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E916. [PMID: 30893909 PMCID: PMC6470684 DOI: 10.3390/ma12060916] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/26/2019] [Accepted: 03/08/2019] [Indexed: 11/16/2022]
Abstract
In this study, a fibrous composite was developed as synthetic graft for labral reconstruction treatment, comprised of ultra-high molecular weight polyethylene (UHMWPE) fabric, ultrafine fibre of polycaprolactone (PCL), and 45S5 Bioglass®. This experiment aimed to examine the mechanical performance and cytocompatibility of the composite. Electrospinning and a slurry dipping technique were applied for composite fabrication. To assess the mechanical performance of UHMWPE, tensile cyclic loading test was carried out. Meanwhile, cytocompatibility of the composite on fibroblastic cells was examined through a viability assay, as well as SEM images to observe cell attachment and proliferation. The mechanical test showed that the UHMWPE fabric had a mean displacement of 1.038 mm after 600 cycles, approximately 4.5 times greater resistance compared to that of natural labrum, based on data obtained from literature. A viability assay demonstrated the predominant occupation of live cells on the material surface, suggesting that the composite was able to provide a viable environment for cell growth. Meanwhile, SEM images exhibited cell adhesion and the formation of cell colonies on the material surface. These results indicated that the UHMWPE/PCL/Bioglass® composite could be a promising material for labrum implants.
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Affiliation(s)
- Adhi Anindyajati
- School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, NSW 2006, Australia.
| | - Philip Boughton
- School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, NSW 2006, Australia.
| | - Andrew J Ruys
- School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, NSW 2006, Australia.
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Controlled release of lawsone from polycaprolactone/gelatin electrospun nano fibers for skin tissue regeneration. Int J Biol Macromol 2019; 124:478-491. [DOI: 10.1016/j.ijbiomac.2018.11.237] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 11/15/2018] [Accepted: 11/26/2018] [Indexed: 01/14/2023]
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50
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Characterization and Optimization of the Seeding Process of Adipose Stem Cells on the Polycaprolactone Scaffolds. Stem Cells Int 2019; 2019:1201927. [PMID: 30915123 PMCID: PMC6402208 DOI: 10.1155/2019/1201927] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/24/2018] [Accepted: 09/26/2018] [Indexed: 02/07/2023] Open
Abstract
The purpose of the current study was to evaluate the usefulness of adipose-derived stem cells (ASCs) for bone injury therapy. Lipoaspirates were collected from the abdomen regions of 17 healthy female donors (mean age 49 ± 6 years) using Coleman technique or Body-jet liposuction. In the present study, the primary objective was the in vitro characteristics of human ASCs. The secondary objective was the optimization of the cell seeding process on 3D-printed scaffolds using polycaprolactone (PCL) or polycaprolactone covered with tricalcium phosphate (PCL + 5% TCP). Biological evaluation of human ASC showed high efficiency of isolation obtaining a satisfying amount of homogeneous cell populations. Results suggest that ASCs can be cultured in vitro for a long time without impairing their proliferative capacity. Growth kinetics shows that the highest number of cells can be achieved in passage 5 and after the 16th passage; there is a significant decrease of cell numbers and their proliferative potential. The percentage of colony forming units from the adipose stem cells is 8% ± 0.63% (p < 0.05). It was observed that the accumulation of calcium phosphate in the cells in vitro, marked with Alizarin Red S, was increased along with the next passage. Analysis of key parameters critically related to the cell seeding process shows that volume of cell suspension and propagation time greatly improve the efficiency of seeding both in PCL and PCL + 5% TCP scaffolds. The cell seeding efficiency did differ significantly between scaffold materials and cell seeding methods (p < 0.001). Increased seeding efficiency was observed when using the saturation of cell suspension into scaffolds with additional incubation. Alkaline phosphatase level production in PCL + 5% TCP scaffold was better than in PCL-only scaffold. The study results can be used for the optimization of the seeding process and quantification methods determining the successful implementation of the preclinical model study in the future tissue engineering strategies.
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