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Chinnasami H, Dey MK, Devireddy R. Three-Dimensional Scaffolds for Bone Tissue Engineering. Bioengineering (Basel) 2023; 10:759. [PMID: 37508786 PMCID: PMC10376773 DOI: 10.3390/bioengineering10070759] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/21/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Immobilization using external or internal splints is a standard and effective procedure to treat minor skeletal fractures. In the case of major skeletal defects caused by extreme trauma, infectious diseases or tumors, the surgical implantation of a bone graft from external sources is required for a complete cure. Practical disadvantages, such as the risk of immune rejection and infection at the implant site, are high in xenografts and allografts. Currently, an autograft from the iliac crest of a patient is considered the "gold standard" method for treating large-scale skeletal defects. However, this method is not an ideal solution due to its limited availability and significant reports of morbidity in the harvest site (30%) as well as the implanted site (5-35%). Tissue-engineered bone grafts aim to create a mechanically strong, biologically viable and degradable bone graft by combining a three-dimensional porous scaffold with osteoblast or progenitor cells. The materials used for such tissue-engineered bone grafts can be broadly divided into ceramic materials (calcium phosphates) and biocompatible/bioactive synthetic polymers. This review summarizes the types of materials used to make scaffolds for cryo-preservable tissue-engineered bone grafts as well as the distinct methods adopted to create the scaffolds, including traditional scaffold fabrication methods (solvent-casting, gas-foaming, electrospinning, thermally induced phase separation) and more recent fabrication methods (fused deposition molding, stereolithography, selective laser sintering, Inkjet 3D printing, laser-assisted bioprinting and 3D bioprinting). This is followed by a short summation of the current osteochondrogenic models along with the required scaffold mechanical properties for in vivo applications. We then present a few results of the effects of freezing and thawing on the structural and mechanical integrity of PLLA scaffolds prepared by the thermally induced phase separation method and conclude this review article by summarizing the current regulatory requirements for tissue-engineered products.
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Affiliation(s)
- Harish Chinnasami
- Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Mohan Kumar Dey
- Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Ram Devireddy
- Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
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Parisi C, Qin K, Fernandes FM. Colonization versus encapsulation in cell-laden materials design: porosity and process biocompatibility determine cellularization pathways. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200344. [PMID: 34334019 DOI: 10.1098/rsta.2020.0344] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/28/2021] [Indexed: 06/13/2023]
Abstract
Seeding materials with living cells has been-and still is-one of the most promising approaches to reproduce the complexity and the functionality of living matter. The strategies to associate living cells with materials are limited to cell encapsulation and colonization, however, the requirements for these two approaches have been seldom discussed systematically. Here we propose a simple two-dimensional map based on materials' pore size and the cytocompatibility of their fabrication process to draw, for the first time, a guide to building cellularized materials. We believe this approach may serve as a straightforward guideline to design new, more relevant materials, able to seize the complexity and the function of biological materials. This article is part of the theme issue 'Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 1)'.
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Affiliation(s)
- Cleo Parisi
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, UMR7574, 4 Place Jussieu, 75005 Paris, France
| | - Kankan Qin
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, UMR7574, 4 Place Jussieu, 75005 Paris, France
| | - Francisco M Fernandes
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, UMR7574, 4 Place Jussieu, 75005 Paris, France
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3
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Olaru M, Sachelarie L, Calin G. Hard Dental Tissues Regeneration-Approaches and Challenges. MATERIALS 2021; 14:ma14102558. [PMID: 34069265 PMCID: PMC8156070 DOI: 10.3390/ma14102558] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Abstract
With the development of the modern concept of tissue engineering approach and the discovery of the potential of stem cells in dentistry, the regeneration of hard dental tissues has become a reality and a priority of modern dentistry. The present review reports the recent advances on stem-cell based regeneration strategies for hard dental tissues and analyze the feasibility of stem cells and of growth factors in scaffolds-based or scaffold-free approaches in inducing the regeneration of either the whole tooth or only of its component structures.
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Affiliation(s)
- Mihaela Olaru
- “Petru Poni” Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania;
| | - Liliana Sachelarie
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 2 Muzicii Str., 700399 Iasi, Romania;
- Correspondence:
| | - Gabriela Calin
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 2 Muzicii Str., 700399 Iasi, Romania;
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Santos-Rosales V, Gallo M, Jaeger P, Alvarez-Lorenzo C, Gómez-Amoza JL, García-González CA. New insights in the morphological characterization and modelling of poly(ε-caprolactone) bone scaffolds obtained by supercritical CO2 foaming. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.105012] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Three-Dimensional Culture System of Cancer Cells Combined with Biomaterials for Drug Screening. Cancers (Basel) 2020; 12:cancers12102754. [PMID: 32987868 PMCID: PMC7601447 DOI: 10.3390/cancers12102754] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary For the research and development of drug discovery, it is of prime importance to construct the three-dimensional (3D) tissue models in vitro. To this end, the enhancement design of cell function and activity by making use of biomaterials is essential. In this review, 3D culture systems of cancer cells combined with several biomaterials for anticancer drug screening are introduced. Abstract Anticancer drug screening is one of the most important research and development processes to develop new drugs for cancer treatment. However, there is a problem resulting in gaps between the in vitro drug screening and preclinical or clinical study. This is mainly because the condition of cancer cell culture is quite different from that in vivo. As a trial to mimic the in vivo cancer environment, there has been some research on a three-dimensional (3D) culture system by making use of biomaterials. The 3D culture technologies enable us to give cancer cells an in vitro environment close to the in vivo condition. Cancer cells modified to replicate the in vivo cancer environment will promote the biological research or drug discovery of cancers. This review introduces the in vitro research of 3D cell culture systems with biomaterials in addition to a brief summary of the cancer environment.
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Jasmine S, Thangavelu A, Krishnamoorthy R, Alshatwi AA. Platelet Concentrates as Biomaterials in Tissue Engineering: a Review. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-020-00165-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Li B, Zhao G, Wang G, Zhang L, Hou J, Gong J. A green strategy to regulate cellular structure and crystallization of poly(lactic acid) foams based on pre-isothermal cold crystallization and CO2 foaming. Int J Biol Macromol 2019; 129:171-180. [DOI: 10.1016/j.ijbiomac.2019.02.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/04/2019] [Accepted: 02/04/2019] [Indexed: 01/18/2023]
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Dynamic in vitro models for tumor tissue engineering. Cancer Lett 2019; 449:178-185. [PMID: 30763717 DOI: 10.1016/j.canlet.2019.01.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 01/24/2019] [Accepted: 01/29/2019] [Indexed: 01/04/2023]
Abstract
Cancer research uses in vitro studies for controllable analysis of tumor behavior and preclinical testing of therapeutics. Shortcomings of basic cell culture systems in recreating in vivo interactions have driven the development of more efficient and biomimetic in vitro environments for cancer research. Assimilation of certain developments in tissue engineering will accelerate and improve the design of these environments. With the continual improvement of the tumor engineering field, the next step is towards macroscopic systems such as scaffold-supported, flow-perfused macroscale tumor bioreactors. Surface modifications of synthetic scaffolds allow for targeted cell adhesion and improved ECM development. Flow perfusion has emerged as means to expose cancerous tissues to critical biomechanical forces for tumor progression while simultaneously improving nutrient and waste transport. Macroscale perfusable systems allow for non-destructive real-time monitoring using biosensors capable of improving understanding of in vitro tumor development at reduced cost and waste. The combination of macroscale perfusable systems, surface-modified synthetic scaffolds, and non-destructive real-time monitoring will provide advanced platforms for in vitro modeling of tumor development, with broad applications in basic tumor research and preclinical drug development.
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Memic A, Colombani T, Eggermont LJ, Rezaeeyazdi M, Steingold J, Rogers ZJ, Navare KJ, Mohammed HS, Bencherif SA. Latest Advances in Cryogel Technology for Biomedical Applications. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201800114] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Adnan Memic
- Center of NanotechnologyKing Abdulaziz University Jeddah 21589 Saudi Arabia
- Center for Biomedical EngineeringDepartment of MedicineBrigham and Women's HospitalHarvard Medical School Cambridge MA 02139 USA
- Department of Chemical EngineeringNortheastern University Boston MA 02115 USA
| | - Thibault Colombani
- Department of Chemical EngineeringNortheastern University Boston MA 02115 USA
| | - Loek J. Eggermont
- Department of Chemical EngineeringNortheastern University Boston MA 02115 USA
- Department of Tumor ImmunologyOncode Institute, Radboud Institute for Molecular Life SciencesRadboud University Medical Center Nijmegen 6500 The Netherlands
| | | | - Joseph Steingold
- Department of Pharmaceutical SciencesNortheastern University Boston MA 02115 USA
| | - Zach J. Rogers
- Department of Chemical EngineeringNortheastern University Boston MA 02115 USA
| | | | | | - Sidi A. Bencherif
- Department of Chemical EngineeringNortheastern University Boston MA 02115 USA
- Department of BioengineeringNortheastern University Boston MA 02115 USA
- Harvard John A. Paulson School of Engineering and Applied SciencesHarvard University Cambridge MA 02138 USA
- Sorbonne UniversityUTC CNRS UMR 7338Biomechanics and Bioengineering (BMBI)University of Technology of Compiègne Compiègne 60159 France
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Soh SH, Lee LY. Microencapsulation and Nanoencapsulation Using Supercritical Fluid (SCF) Techniques. Pharmaceutics 2019; 11:pharmaceutics11010021. [PMID: 30621309 PMCID: PMC6359585 DOI: 10.3390/pharmaceutics11010021] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 12/25/2018] [Accepted: 12/27/2018] [Indexed: 11/16/2022] Open
Abstract
The unique properties of supercritical fluids, in particular supercritical carbon dioxide (CO2), provide numerous opportunities for the development of processes for pharmaceutical applications. One of the potential applications for pharmaceuticals includes microencapsulation and nanoencapsulation for drug delivery purposes. Supercritical CO2 processes allow the design and control of particle size, as well as drug loading by utilizing the tunable properties of supercritical CO2 at different operating conditions (flow ratio, temperature, pressures, etc.). This review aims to provide a comprehensive overview of the processes and techniques using supercritical fluid processing based on the supercritical properties, the role of supercritical carbon dioxide during the process, and the mechanism of formulation production for each process discussed. The considerations for equipment configurations to achieve the various processes described and the mechanisms behind the representative processes such as RESS (rapid expansion of supercritical solutions), SAS (supercritical antisolvent), SFEE (supercritical fluid extraction of emulsions), PGSS (particles from gas-saturated solutions), drying, and polymer foaming will be explained via schematic representation. More recent developments such as fluidized bed coating using supercritical CO2 as the fluidizing and drying medium, the supercritical CO2 spray drying of aqueous solutions, as well as the production of microporous drug releasing devices via foaming, will be highlighted in this review. Development and strategies to control and optimize the particle morphology, drug loading, and yield from the major processes will also be discussed.
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Affiliation(s)
- Soon Hong Soh
- Newcastle Research and Innovation Institute, 80 Jurong East Street 21, #05-04 Devan Nair Institute for Employment & Employability, Singapore 609607, Singapore.
| | - Lai Yeng Lee
- Newcastle Research and Innovation Institute, 80 Jurong East Street 21, #05-04 Devan Nair Institute for Employment & Employability, Singapore 609607, Singapore.
- Newcastle University in Singapore, 537 Clementi Road, #06-01 SIT Building@Ngee Ann Polytechnic, Singapore 599493, Singapore.
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Stubenrauch C, Menner A, Bismarck A, Drenckhan W. Emulsions- und Schaumtemplatierung - vielversprechende Methoden zur Herstellung maßgeschneiderter poröser Polymere. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801466] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Cosima Stubenrauch
- Institut für Physikalische Chemie; Universität Stuttgart; Stuttgart Deutschland
| | - Angelika Menner
- Polymer & Composite Engineering (PaCE) Group, Institut für Materialchemie; Fakultät für Chemie; Universität Wien; Österreich
| | - Alexander Bismarck
- Polymer & Composite Engineering (PaCE) Group, Institut für Materialchemie; Fakultät für Chemie; Universität Wien; Österreich
- Polymer & Composite Engineering (PaCE) Group; Department of Chemical Engineering; Imperial College; London Großbritannien
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Stubenrauch C, Menner A, Bismarck A, Drenckhan W. Emulsion and Foam Templating-Promising Routes to Tailor-Made Porous Polymers. Angew Chem Int Ed Engl 2018; 57:10024-10032. [DOI: 10.1002/anie.201801466] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/26/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Cosima Stubenrauch
- Institute of Physical Chemistry; University of Stuttgart; Stuttgart Germany
| | - Angelika Menner
- Polymer & Composite Engineering (PaCE) Group, Institute of Materials Chemistry & Research; Faculty of Chemistry; University of Vienna; Vienna Austria
| | - Alexander Bismarck
- Polymer & Composite Engineering (PaCE) Group, Institute of Materials Chemistry & Research; Faculty of Chemistry; University of Vienna; Vienna Austria
- Polymer & Composite Engineering (PaCE) Group; Department of Chemical Engineering; Imperial College; London UK
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Chinnasami H, Gimble J, Devireddy RV. Structure–property relation of porous poly (l-lactic acid) scaffolds fabricated using organic solvent mixtures and controlled cooling rates and its bio-compatibility with human adipose stem cells. J BIOACT COMPAT POL 2018. [DOI: 10.1177/0883911518758354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Thermally induced phase separation method was used to make porous three-dimensional poly (l-lactic acid) scaffolds. The effect of imposed thermal profile during freezing of the poly (l-lactic acid) in dioxane solution on the scaffold was characterized by their micro-structure, porosity (%), pore sizes’ distribution, and mechanical strength. The porosity (%) decreased considerably with increasing concentrations of poly (l-lactic acid) in the solution, while a decreasing trend was observed with increasing cooling rates. The mechanical strength increases with increase in poly (l-lactic acid) concentration and also with increase in the cooling rate for both types of solvents. Therefore, mechanical strength was increased by higher cooling rates while the porosity (%) remained relatively consistent. Scaffolds made using higher concentrations of poly (l-lactic acid; 7% and 10% w/v) in solvent showed better mechanical strength which improved relatively with increasing cooling rates (1°C–40°C/min). This phenomenon of enhanced structural integrity with increasing cooling rates was more prominent in scaffolds made from higher initial poly (l-lactic acid) concentrations. Human adipose–derived stem cells were cultured on these scaffold (7% and 10% w/v) prepared by thermally induced phase separation at all cooling rates to measure the cell proliferation efficiency as a function of their micro-structural properties. Mean pore sizes played a crucial role in cell proliferation than percent porosity since all scaffolds were >88% porous. The viability percent of human adipose tissue–derived adult stem cells increased consistently with longer periods of culture. Thus, poly (l-lactic acid) scaffolds prepared by thermally controlled thermally induced phase separation method could be a prime candidate for making ex vivo tissue-engineered grafts for surgical implantation.
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Affiliation(s)
- Harish Chinnasami
- Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA, USA
| | - Jeff Gimble
- LaCell, LLC and Tulane Center for Stem Cell Research & Regenerative Medicine and Departments of Medicine, Structural & Cellular Biology and Surgery, Tulane University School of Medicine, New Orleans, LA, USA
| | - Ram V Devireddy
- Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA, USA
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Ong YXJ, Lee LY, Davoodi P, Wang CH. Production of drug-releasing biodegradable microporous scaffold using a two-step micro-encapsulation/supercritical foaming process. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.10.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Nanocomposites foams of poly(ethylene-co-vinyl acetate) with short and long nanocellulose fibers and foaming with supercritical CO2. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2123-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Alaribe FN, Manoto SL, Motaung SCKM. Scaffolds from biomaterials: advantages and limitations in bone and tissue engineering. Biologia (Bratisl) 2016. [DOI: 10.1515/biolog-2016-0056] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Warren PB, Huebner P, Spang JT, Shirwaiker RA, Fisher MB. Engineering 3D-Bioplotted scaffolds to induce aligned extracellular matrix deposition for musculoskeletal soft tissue replacement. Connect Tissue Res 2016; 58:342-354. [PMID: 28026970 DOI: 10.1080/03008207.2016.1276177] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE Tissue engineering and regenerative medicine approaches have the potential to overcome the challenges associated with current treatment strategies for meniscus injuries. 3D-Bioplotted scaffolds are promising, but have not demonstrated the ability to guide the formation of aligned collagenous matrix in vivo, which is critical for generating functional meniscus tissue. In this study, we evaluate the ability of 3D-Bioplotted scaffold designs with varying interstrand spacing to induce the deposition of aligned matrix in vivo. MATERIALS AND METHODS 3D-Bioplotted polycaprolactone scaffolds with 100, 200, or 400 μm interstrand spacing were implanted subcutaneously in a rat model for 4, 8, or 12 weeks. Scaffolds were harvested, paraffin-embedded, sectioned, and stained to visualize cell nuclei and collagen. Quantitative image analysis was used to evaluate cell density, matrix fill, and collagen fiber alignment within the scaffolds. RESULTS By 4 weeks, cells had infiltrated the innermost scaffold regions. Similarly, collagenous matrix filled interstrand regions nearly completely by 4 weeks. By 12 weeks, aligned collagen was present in all scaffolds. Generally, alignment along the scaffold strands increased over time for all three interstrand spacing groups. Distribution of collagen fiber alignment angles narrowed as interstrand spacing decreased. CONCLUSIONS 3D-Bioplotted scaffolds allow for complete cell infiltration and collagenous matrix production throughout the scaffold. The ability to use interstrand spacing as a means of controlling the formation of aligned collagen in vivo was demonstrated, which helps establish a design space for scaffold-based meniscus tissue engineering.
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Affiliation(s)
- Paul B Warren
- a Department of Biomedical Engineering , North Carolina State University , Raleigh , NC , USA and University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,b Comparative Medicine Institute , North Carolina State University , Raleigh , NC , USA
| | - Pedro Huebner
- b Comparative Medicine Institute , North Carolina State University , Raleigh , NC , USA.,c Fitts Department of Industrial and Systems Engineering , North Carolina State University , Raleigh , NC , USA.,d Center for Additive Manufacturing and Logistics , North Carolina State University , Raleigh , NC , USA
| | - Jeffrey T Spang
- e Department of Orthopedics , University of North Carolina School of Medicine , Chapel Hill , NC , USA
| | - Rohan A Shirwaiker
- a Department of Biomedical Engineering , North Carolina State University , Raleigh , NC , USA and University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,b Comparative Medicine Institute , North Carolina State University , Raleigh , NC , USA.,c Fitts Department of Industrial and Systems Engineering , North Carolina State University , Raleigh , NC , USA.,d Center for Additive Manufacturing and Logistics , North Carolina State University , Raleigh , NC , USA
| | - Matthew B Fisher
- a Department of Biomedical Engineering , North Carolina State University , Raleigh , NC , USA and University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,b Comparative Medicine Institute , North Carolina State University , Raleigh , NC , USA.,e Department of Orthopedics , University of North Carolina School of Medicine , Chapel Hill , NC , USA
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Pradhan S, Hassani I, Clary JM, Lipke EA. Polymeric Biomaterials for In Vitro Cancer Tissue Engineering and Drug Testing Applications. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:470-484. [PMID: 27302080 DOI: 10.1089/ten.teb.2015.0567] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Biomimetic polymers and materials have been widely used in tissue engineering for regeneration and replication of diverse types of both normal and diseased tissues. Cancer, being a prevalent disease throughout the world, has initiated substantial interest in the creation of tissue-engineered models for anticancer drug testing. The development of these in vitro three-dimensional (3D) culture models using novel biomaterials has facilitated the investigation of tumorigenic and associated biological phenomena with a higher degree of complexity and physiological context than that provided by established two-dimensional culture models. In this review, an overview of a wide range of natural, synthetic, and hybrid biomaterials used for 3D cancer cell culture and investigation of cancer cell behavior is presented. The role of these materials in modulating cell-matrix interactions and replicating specific tumorigenic characteristics is evaluated. In addition, recent advances in biomaterial design, synthesis, and fabrication are also assessed. Finally, the advantages of incorporating polymeric biomaterials in 3D cancer models for obtaining efficacy data in anticancer drug testing applications are highlighted.
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Affiliation(s)
- Shantanu Pradhan
- Department of Chemical Engineering, Auburn University , Auburn, Alabama
| | - Iman Hassani
- Department of Chemical Engineering, Auburn University , Auburn, Alabama
| | - Jacob M Clary
- Department of Chemical Engineering, Auburn University , Auburn, Alabama
| | - Elizabeth A Lipke
- Department of Chemical Engineering, Auburn University , Auburn, Alabama
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Dai Z, Ronholm J, Tian Y, Sethi B, Cao X. Sterilization techniques for biodegradable scaffolds in tissue engineering applications. J Tissue Eng 2016; 7:2041731416648810. [PMID: 27247758 PMCID: PMC4874054 DOI: 10.1177/2041731416648810] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 04/18/2016] [Indexed: 12/28/2022] Open
Abstract
Biodegradable scaffolds have been extensively studied due to their wide applications in biomaterials and tissue engineering. However, infections associated with in vivo use of these scaffolds by different microbiological contaminants remain to be a significant challenge. This review focuses on different sterilization techniques including heat, chemical, irradiation, and other novel sterilization techniques for various biodegradable scaffolds. Comparisons of these techniques, including their sterilization mechanisms, post-sterilization effects, and sterilization efficiencies, are discussed.
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Affiliation(s)
- Zheng Dai
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON, Canada
| | - Jennifer Ronholm
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Yiping Tian
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON, Canada
| | - Benu Sethi
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON, Canada
| | - Xudong Cao
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON, Canada
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de Azevedo Gonçalves Mota RC, da Silva EO, de Lima FF, de Menezes LR, Thiele ACS. 3D Printed Scaffolds as a New Perspective for Bone Tissue Regeneration: Literature Review. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/msa.2016.78039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Borowiec J, Hampl J, Gebinoga M, Elsarnagawy T, Elnakady YA, Fouad H, Almajhadi F, Fernekorn U, Weise F, Singh S, Elsarnagawy D, Schober A. Thermoforming techniques for manufacturing porous scaffolds for application in 3D cell cultivation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:509-516. [PMID: 25686978 DOI: 10.1016/j.msec.2015.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 11/14/2014] [Accepted: 01/04/2015] [Indexed: 01/13/2023]
Abstract
Within the scientific community, there is an increasing demand to apply advanced cell cultivation substrates with increased physiological functionalities for studying spatially defined cellular interactions. Porous polymeric scaffolds are utilized for mimicking an organ-like structure or engineering complex tissues and have become a key element for three-dimensional (3D) cell cultivation in the meantime. As a consequence, efficient 3D scaffold fabrication methods play an important role in modern biotechnology. Here, we present a novel thermoforming procedure for manufacturing porous 3D scaffolds from permeable materials. We address the issue of precise thermoforming of porous polymer foils by using multilayer polymer thermoforming technology. This technology offers a new method for structuring porous polymer foils that are otherwise available for non-porous polymers only. We successfully manufactured 3D scaffolds from solvent casted and phase separated polylactic acid (PLA) foils and investigated their biocompatibility and basic cellular performance. The HepG2 cell culture in PLA scaffold has shown enhanced albumin secretion rate in comparison to a previously reported polycarbonate based scaffold with similar geometry.
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Affiliation(s)
- Justyna Borowiec
- Ilmenau University of Technology, Nano-Biosystem Technology Department, Gustav-Kirchhoff-Straße 7, 98693 Ilmenau, Germany.
| | - Jörg Hampl
- Ilmenau University of Technology, Nano-Biosystem Technology Department, Gustav-Kirchhoff-Straße 7, 98693 Ilmenau, Germany.
| | - Michael Gebinoga
- Ilmenau University of Technology, Nano-Biosystem Technology Department, Gustav-Kirchhoff-Straße 7, 98693 Ilmenau, Germany.
| | - Tarek Elsarnagawy
- Prince Sultan University, Prince Salman Research & Translation Center, College of Engineering, Riyadh, Saudi Arabia.
| | - Yasser A Elnakady
- King Saud University, College of Science, Zoology Department, Riyadh, Saudi Arabia.
| | - Hassan Fouad
- Helwan University, Biomedical Engineering Department, Helwan, Egypt.
| | - Fahd Almajhadi
- King Saud University, College of Science, Department of Botany and Microbiology, Riyadh, Saudi Arabia.
| | - Uta Fernekorn
- Ilmenau University of Technology, Nano-Biosystem Technology Department, Gustav-Kirchhoff-Straße 7, 98693 Ilmenau, Germany.
| | - Frank Weise
- Ilmenau University of Technology, Nano-Biosystem Technology Department, Gustav-Kirchhoff-Straße 7, 98693 Ilmenau, Germany.
| | - Sukhdeep Singh
- Ilmenau University of Technology, Nano-Biosystem Technology Department, Gustav-Kirchhoff-Straße 7, 98693 Ilmenau, Germany.
| | | | - Andreas Schober
- Ilmenau University of Technology, Nano-Biosystem Technology Department, Gustav-Kirchhoff-Straße 7, 98693 Ilmenau, Germany.
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Cho YS, Hong MW, Kim SY, Lee SJ, Lee JH, Kim YY, Cho YS. Fabrication of dual-pore scaffolds using SLUP (salt leaching using powder) and WNM (wire-network molding) techniques. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:546-55. [PMID: 25491863 DOI: 10.1016/j.msec.2014.10.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 09/03/2014] [Accepted: 10/02/2014] [Indexed: 10/24/2022]
Abstract
In this study, a novel technique was proposed to fabricate dual-pore scaffolds combining both SLUP (salt leaching using powder) and WNM (wire-network molding) techniques. This technique has several advantages: solvent-free, no limit on the use of thermoplastic polymers as a raw material, and easiness of fabricating scaffolds with dual-scale pores that are interconnected randomized small pores. To fabricate dual-pore scaffolds, PCL and NaCl powders were mixed at a certain ratio. Subsequently, needles were inserted into a designed mold, and the mixture was filled into the mold thereafter. Subsequently, after the mold was pressurized, the mold was heated to melt the PCL powders. The PCL/NaCl structure and needles were separated from the mold. The structure was sonicated to leach-out the NaCl particles and was dried. Consequently, the remaining PCL structure became the dual-pore scaffold. To compare the characteristics of dual-pore scaffolds, control scaffolds, which are 3D plotter and SLUP scaffolds were fabricated.
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Affiliation(s)
- Yong Sang Cho
- Division of Mechanical and Automotive Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Myoung Wha Hong
- Department of Orthopedic Sugery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137-701, Republic of Korea
| | - So-Youn Kim
- Division of Mechanical and Automotive Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Seung-Jae Lee
- Division of Mechanical and Automotive Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Jun Hee Lee
- Department of Nature-Inspired Nano Convergence System, Nano Convergence and Manufacturing Systems Research Division, Korea Institute of Machinery and Materials (KIMM), 156, Gajeongbuk-Ro, Yuseong-Gu, Daejeon 305-343, Republic of Korea
| | - Young Yul Kim
- Department of Orthopedic Sugery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137-701, Republic of Korea.
| | - Young-Sam Cho
- Division of Mechanical and Automotive Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 570-749, Republic of Korea.
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Qiao J, Lew CMJ, Karthikeyan A, Wang CH. Production of PEX protein from QM7 cells cultured in polymer scaffolds in a Taylor–Couette bioreactor. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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26
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Shang Y, Tamai M, Ishii R, Nagaoka N, Yoshida Y, Ogasawara M, Yang J, Tagawa YI. Hybrid sponge comprised of galactosylated chitosan and hyaluronic acid mediates the co-culture of hepatocytes and endothelial cells. J Biosci Bioeng 2014; 117:99-106. [DOI: 10.1016/j.jbiosc.2013.06.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 06/13/2013] [Accepted: 06/14/2013] [Indexed: 01/23/2023]
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27
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Grandelli HE, Kiran E. High pressure density, miscibility and compressibility of poly(lactide-co-glycolide) solutions in acetone and acetone+CO2 binary fluid mixtures. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2012.12.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Griffini G, Levi M, Turri S. Process Study of the Formation of Biodegradable Polymer Microspheres for Tissue Engineering. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bierwolf J, Lutgehetmann M, Deichmann S, Erbes J, Volz T, Dandri M, Cohen S, Nashan B, Pollok JM. Primary Human Hepatocytes from Metabolic-Disordered Children Recreate Highly Differentiated Liver-Tissue-Like Spheroids on Alginate Scaffolds. Tissue Eng Part A 2012; 18:1443-53. [DOI: 10.1089/ten.tea.2012.0029] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Jeanette Bierwolf
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marc Lutgehetmann
- Department of Internal Medicine 1, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Steffen Deichmann
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johannes Erbes
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tassilo Volz
- Department of Internal Medicine 1, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maura Dandri
- Department of Internal Medicine 1, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Smadar Cohen
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Bjoern Nashan
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joerg-Matthias Pollok
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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31
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Detection of melting point depression and crystallization of polycaprolactone (PCL) in scCO2 by infrared spectroscopy. Polym J 2012. [DOI: 10.1038/pj.2012.113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Jiang X, Yu F, Wang Z, Li J, Tan H, Ding M, Fu Q. Fabrication and Characterization of Waterborne Biodegradable Polyurethanes 3-Dimensional Porous Scaffolds for Vascular Tissue Engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 21:1637-52. [DOI: 10.1163/092050609x12525750021270] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Xia Jiang
- a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Feilong Yu
- b College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Zhigao Wang
- c College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jiehua Li
- d College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Hong Tan
- e College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Mingming Ding
- f College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Qiang Fu
- g College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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Combination therapy with BMP-2 and BMSCs enhances bone healing efficacy of PCL scaffold fabricated using the 3D plotting system in a large segmental defect model. Biotechnol Lett 2012; 34:1375-84. [PMID: 22447098 DOI: 10.1007/s10529-012-0900-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 02/27/2012] [Indexed: 10/28/2022]
Abstract
The three-dimensional (3D) plotting system is a rapidly-developing scaffold fabrication method for bone tissue engineering. It yields a highly porous and inter-connective structure without the use of cytotoxic solvents. However, the therapeutic effects of a scaffold fabricated using the 3D plotting system in a large segmental defect model have not yet been demonstrated. We have tested two hypotheses: whether the bone healing efficacy of scaffold fabricated using the 3D plotting system would be enhanced by bone marrow-derived mesenchymal stem cell (BMSC) transplantation; and whether the combination of bone morphogenetic protein-2 (BMP-2) administration and BMSC transplantation onto the scaffold would act synergistically to enhance bone regeneration in a large segmental defect model. The use of the combined therapy did increase bone regeneration further as compared to that with monotherapy in large segmental bone defects.
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Huh M, Jung MH, Park YS, Kang TB, Nah C, Russell RA, Holden PJ, Yun SI. Fabrication of honeycomb-structured porous films from poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co
-3-hydroxyvalerate) via the breath figures method. POLYM ENG SCI 2011. [DOI: 10.1002/pen.22161] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Dehghani F, Annabi N. Engineering porous scaffolds using gas-based techniques. Curr Opin Biotechnol 2011; 22:661-6. [DOI: 10.1016/j.copbio.2011.04.005] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 04/01/2011] [Indexed: 12/18/2022]
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Mou ZL, Zhao LJ, Zhang QA, Zhang J, Zhang ZQ. Preparation of porous PLGA/HA/collagen scaffolds with supercritical CO2 and application in osteoblast cell culture. J Supercrit Fluids 2011. [DOI: 10.1016/j.supflu.2011.07.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tran RT, Naseri E, Kolasnikov A, Bai X, Yang J. A new generation of sodium chloride porogen for tissue engineering. Biotechnol Appl Biochem 2011; 58:335-44. [DOI: 10.1002/bab.44] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 07/13/2011] [Indexed: 01/01/2023]
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Intranuovo F, Howard D, White LJ, Johal RK, Ghaemmaghami AM, Favia P, Howdle SM, Shakesheff KM, Alexander MR. Uniform cell colonization of porous 3-D scaffolds achieved using radial control of surface chemistry. Acta Biomater 2011; 7:3336-44. [PMID: 21642021 DOI: 10.1016/j.actbio.2011.05.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 05/11/2011] [Accepted: 05/18/2011] [Indexed: 10/18/2022]
Abstract
Uniform cellular distribution is a prerequisite to forming tissue within porous scaffolds, but the seeding process often results in preferential adhesion of cells at the periphery. We develop a vapour phase coating strategy which is readily applicable to any porous solid to provide a uniform cellular distribution. Plasma polymerized allyl amine (ppAAm) is used to form a thin nitrogen-containing coating throughout porous three-dimensional (3-D) poly(d,l-lactic acid) scaffolds. Subsequent controlled deposition of a hydrocarbon plasma polymerized hexane (ppHex) allows control of the fibroblast penetration into these porous 3-D objects. In order to optimize the coating conditions, a planar pinhole model of plasma penetration into pores is developed to rapidly measure deposit penetration using picolitre water contact angle measurement. Sufficiently good control over the plasma deposition within the porous scaffold is achieved using this approach to superimpose a relatively cell-repellent ppHex coating at the scaffold periphery onto the ppAAm-coated core, with a chemical gradient between the two. This 3-D chemical gradient encourages 3T3 fibroblast cells to adhere homogeneously from the periphery to the centre, when balanced by the tortuousity of the pore structure, which cells experience when passing from the surrounding medium to the centre.
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39
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Ulery BD, Nair LS, Laurencin CT. Biomedical Applications of Biodegradable Polymers. JOURNAL OF POLYMER SCIENCE. PART B, POLYMER PHYSICS 2011; 49:832-864. [PMID: 21769165 PMCID: PMC3136871 DOI: 10.1002/polb.22259] [Citation(s) in RCA: 1179] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Utilization of polymers as biomaterials has greatly impacted the advancement of modern medicine. Specifically, polymeric biomaterials that are biodegradable provide the significant advantage of being able to be broken down and removed after they have served their function. Applications are wide ranging with degradable polymers being used clinically as surgical sutures and implants. In order to fit functional demand, materials with desired physical, chemical, biological, biomechanical and degradation properties must be selected. Fortunately, a wide range of natural and synthetic degradable polymers has been investigated for biomedical applications with novel materials constantly being developed to meet new challenges. This review summarizes the most recent advances in the field over the past 4 years, specifically highlighting new and interesting discoveries in tissue engineering and drug delivery applications.
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Affiliation(s)
- Bret D. Ulery
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
| | - Lakshmi S. Nair
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
- Department of Chemical, Materials & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06268
| | - Cato T. Laurencin
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
- Department of Chemical, Materials & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06268
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Salerno A, Zeppetelli S, Di Maio E, Iannace S, Netti PA. Design of Bimodal PCL and PCL-HA Nanocomposite Scaffolds by Two Step Depressurization During Solid-state Supercritical CO2
Foaming. Macromol Rapid Commun 2011; 32:1150-6. [DOI: 10.1002/marc.201100119] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 05/06/2011] [Indexed: 11/06/2022]
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41
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Jiang X, Wang K, Ding M, Li J, Tan H, Wang Z, Fu Q. Quantitative grafting of peptide onto the nontoxic biodegradable waterborne polyurethanes to fabricate peptide modified scaffold for soft tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:819-827. [PMID: 21360121 DOI: 10.1007/s10856-011-4265-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Accepted: 02/18/2011] [Indexed: 05/30/2023]
Abstract
Gly-Arg-Gly-Asp-Ser-Pro (GRGDSP) peptide has frequently been used in the biomedical materials to enhance adhesion and proliferation of cells. In this work, we modified the nontoxic biodegradable waterborne polyurethanes (WBPU) with GRGDSP peptide and fabricated 3-D porous scaffold with the modified WBPU to investigate the effect of the immobilized GRGDSP peptide on human umbilical vein endothelial cells (HUVECs) adhesion and proliferation. A facile and reliable approach was first developed to quantitative grafting of GRGDSP onto the WBPU molecular backbone using ethylene glycol diglycidyl ether (EX810) as a connector. Then 3-D porous WBPU scaffolds with various GRGDSP content were fabricated by freeze-drying the emulsion. In both of the HUVECs adhesion and proliferation tests, enhanced cell performance was observed on the GRGDSP grafted scaffolds compared with the unmodified scaffolds and the tissue culture plate (TCP). The adhesion rate and proliferation rate increased with the increase of GRGDSP content in the scaffold and reached a maximum with peptide concentration of 0.85 μmol/g based on the weight of the polyurethanes. These results illustrate the necessity of the effective control of the GRGDSP content in the modified WBPU and support the potential utility of these 3-D porous modified WBPU scaffolds in the soft tissue engineering to guide cell adhesion, proliferation and tissue regeneration.
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Affiliation(s)
- Xia Jiang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
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42
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Design of submicron and nanoparticle delivery systems using supercritical carbon dioxide-mediated processes: an overview. Ther Deliv 2011; 2:259-77. [DOI: 10.4155/tde.10.82] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Supercritical carbon dioxide technology is an environmentally benign technique that allows precise control of particle morphology, while minimizing organic solvent use for a wide variety of biomedical and pharmaceutical applications. Supercritical carbon dioxide processes have benefits over the conventional particle formation methods in terms of improved control, flexibility and operational ease. This article gives an insight into a variety of supercritical fluid techniques relevant to drug formulation, recent advances and novel applications in the field of controlled delivery. These new methods have been designed to alleviate the scaling-up of the traditional methods for nanoparticle formulation either in the form of polymeric scaffolds, impregnation or nanoencapsules using a simple one-step process to produce micron-size particles.
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Török E, Lutgehetmann M, Bierwolf J, Melbeck S, Düllmann J, Nashan B, Ma PX, Pollok JM. Primary human hepatocytes on biodegradable poly(l-lactic acid) matrices: a promising model for improving transplantation efficiency with tissue engineering. Liver Transpl 2011; 17:104-14. [PMID: 21280182 DOI: 10.1002/lt.22200] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Liver transplantation is an established treatment for acute and chronic liver disease. However, because of the shortage of donor organs, it does not fulfill the needs of all patients. Hepatocyte transplantation is promising as an alternative method for the treatment of end-stage liver disease and as bridging therapy until liver transplantation. Our group has been working on the optimization of matrix-based hepatocyte transplantation. In order to increase cell survival after transplantation, freshly isolated human hepatocytes were seeded onto biodegradable poly(l-lactic acid) (PLLA) polymer scaffolds and were cultured in a flow bioreactor. PLLA discs were seeded with human hepatocytes and exposed to a recirculated medium flow for 6 days. Human hepatocytes formed spheroidal aggregates with a liver-like morphology and active metabolic function. Phase contrast microscopy showed increasing numbers of spheroids of increasing diameter during the culture period. Hematoxylin and eosin histology showed viable and intact hepatocytes inside the spheroids. Immunohistochemistry confirmed sustained hepatocyte function and a preserved hepatocyte-specific cytoskeleton. Albumin, alpha-1-antitrypsin, and urea assays showed continued production during the culture period. Northern blot analysis demonstrated increasing albumin signals. Scanning electron micrographs showed hepatocyte spheroids with relatively smooth undulating surfaces and numerous microvilli. Transmission electron micrographs revealed intact hepatocytes and junctional complexes with coated pits and vesicles inside the spheroids. Therefore, we conclude that primary human hepatocytes, precultured in a flow bioreactor on a PLLA scaffold, reorganize to form morphologically intact liver neotissue, and this might offer an optimized method for hepatocyte transplantation because of the expected reduction of the initial cell loss, the high regenerative potential in vivo, and the preformed functional integrity.
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Affiliation(s)
- Eva Török
- Departments of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Kang SW, Lee SJ, Kim JS, Choi EH, Cha BH, Shim JH, Cho DW, Lee SH. Effect of a Scaffold Fabricated Thermally from Acetylated PLGA on the Formation of Engineered Cartilage. Macromol Biosci 2010; 11:267-74. [DOI: 10.1002/mabi.201000315] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 09/06/2010] [Indexed: 11/07/2022]
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46
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Study of cell seeding on porous poly(d,l-lactic-co-glycolic acid) sponge and growth in a Couette–Taylor bioreactor. Chem Eng Sci 2010. [DOI: 10.1016/j.ces.2009.12.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Zhou H, Chen SB, Peng J, Wang CH. A study of effective diffusivity in porous scaffold by Brownian dynamics simulation. J Colloid Interface Sci 2010; 342:620-8. [DOI: 10.1016/j.jcis.2009.10.079] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 10/29/2009] [Accepted: 10/29/2009] [Indexed: 11/29/2022]
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48
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Lee LY, Ranganath SH, Fu Y, Zheng JL, Lee HS, Wang CH, Smith KA. Paclitaxel release from micro-porous PLGA disks. Chem Eng Sci 2009. [DOI: 10.1016/j.ces.2009.07.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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49
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Ong BY, Ranganath SH, Lee LY, Lu F, Lee HS, Sahinidis NV, Wang CH. Paclitaxel delivery from PLGA foams for controlled release in post-surgical chemotherapy against glioblastoma multiforme. Biomaterials 2009; 30:3189-96. [DOI: 10.1016/j.biomaterials.2009.02.030] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Accepted: 02/23/2009] [Indexed: 11/17/2022]
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Nie H, Khew ST, Lee LY, Poh KL, Tong YW, Wang CH. Lysine-based peptide-functionalized PLGA foams for controlled DNA delivery. J Control Release 2009; 138:64-70. [PMID: 19409431 DOI: 10.1016/j.jconrel.2009.04.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Revised: 03/30/2009] [Accepted: 04/25/2009] [Indexed: 10/20/2022]
Abstract
Due to its hydrophobicity and negatively charged surfaces, PLGA-based scaffolds have encountered problems in controlled-release and tissue engineering applications. The effects of charge modification of PLGA micro-porous foams on DNA delivery and DNA transfection are investigated herein. Tailor-designed l-lysine peptides (K4 and K20) were employed to modify the surface charge of PLGA foams using 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide and N-hydroxysuccinimide cross linkers and the effects of charge modification of PLGA were examined in three main aspects: DNA adsorption, DNA release properties and DNA transfection. Successful conjugation of peptide and DNA adsorption were verified by X-ray photoelectron spectroscopy. A plasmid encoding bone morphogenetic protein-2 (BMP2) was used throughout the current study and the results indicate that adsorption capacity and release behavior of DNA were highly dependent on the charge properties of the foam surfaces. The release rates of DNA from the K4- and K20-functionalized foams are more sustainable as compared to the blank foam. As a result, the sustained release of DNA from modified foams led to negligible cytotoxicity and sustained expression of DNA which is favorable for DNA delivery and tissue engineering application. Furthermore, the ease of fabrication and modification of PLGA foams makes it a promising DNA delivery device.
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Affiliation(s)
- Hemin Nie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, Singapore
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