1
|
Carotenuto F, Fiaschini N, Di Nardo P, Rinaldi A. Towards a Material-by-Design Approach to Electrospun Scaffolds for Tissue Engineering Based on Statistical Design of Experiments (DOE). MATERIALS (BASEL, SWITZERLAND) 2023; 16:1539. [PMID: 36837169 PMCID: PMC9961090 DOI: 10.3390/ma16041539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Electrospinning bears great potential for the manufacturing of scaffolds for tissue engineering, consisting of a porous mesh of ultrafine fibers that effectively mimic the extracellular matrix (ECM) and aid in directing stem cell fate. However, for engineering purposes, there is a need to develop material-by-design approaches based on predictive models. In this methodological study, a rational methodology based on statistical design of experiments (DOE) is discussed in detail, yielding heuristic models that capture the linkage between process parameters (Xs) of the electrospinning and scaffold properties (Ys). Five scaffolds made of polycaprolactone are produced according to a 22-factorial combinatorial scheme where two Xs, i.e., flow rate and applied voltage, are varied between two given levels plus a center point. The scaffolds were characterized to measure a set of properties (Ys), i.e., fiber diameter distribution, porosity, wettability, Young's modulus, and cell adhesion on murine myoblast C1C12 cells. Simple engineering DOE models were obtained for all Ys. Each Y, for example, the biological response, can be used as a driver for the design process, using the process-property model of interest for accurate interpolation within the design domain, enabling a material-by-design strategy and speeding up the product development cycle. The implications are also illustrated in the context of the design of multilayer scaffolds with microstructural gradients and controlled properties of each layer. The possibility of obtaining statistical models correlating between diverse output properties of the scaffolds is highlighted. Noteworthy, the featured DOE approach can be potentially merged with artificial intelligence tools to manage complexity and it is applicable to several fields including 3D printing.
Collapse
Affiliation(s)
- Felicia Carotenuto
- Dipartimento di Scienze Cliniche e Medicina Traslazionale, Università degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy
- CIMER-Centro di Ricerca Interdipartimentale di Medicina Rigenerativa, Università degli Studi di Roma "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | | | - Paolo Di Nardo
- Dipartimento di Scienze Cliniche e Medicina Traslazionale, Università degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy
- CIMER-Centro di Ricerca Interdipartimentale di Medicina Rigenerativa, Università degli Studi di Roma "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy
| | - Antonio Rinaldi
- SSPT-PROMAS-MATPRO Laboratory, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Via Anguillarese 301, 00123 Rome, Italy
| |
Collapse
|
2
|
Mussi V, Convertino A, Lisi A. Editorial for the Special Issue on Nanostructured Surfaces and Devices for Biomedical Applications. MICROMACHINES 2022; 13:2094. [PMID: 36557393 PMCID: PMC9782862 DOI: 10.3390/mi13122094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The ability to control and modify the surface topography of materials at the nanoscale, which produces features with a comparable size to that of biological entities, so as to effectively probe and influence processes at both the cellular and the molecular level, has facilitated incredible possibilities in the fields of biomedicine, biosensing, and diagnostics [...].
Collapse
Affiliation(s)
- Valentina Mussi
- IMM CNR, Institute of Microelectronics and Microsystems, National Research Council, 00133 Rome, Italy
| | - Annalisa Convertino
- IMM CNR, Institute of Microelectronics and Microsystems, National Research Council, 00133 Rome, Italy
| | - Antonella Lisi
- IFT CNR, Institute of Translational Pharmacology, National Research Council, 00133 Rome, Italy
| |
Collapse
|
3
|
Carotenuto F, Politi S, Ul Haq A, De Matteis F, Tamburri E, Terranova ML, Teodori L, Pasquo A, Di Nardo P. From Soft to Hard Biomimetic Materials: Tuning Micro/Nano-Architecture of Scaffolds for Tissue Regeneration. MICROMACHINES 2022; 13:mi13050780. [PMID: 35630247 PMCID: PMC9144100 DOI: 10.3390/mi13050780] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 03/30/2022] [Accepted: 05/13/2022] [Indexed: 11/23/2022]
Abstract
Failure of tissues and organs resulting from degenerative diseases or trauma has caused huge economic and health concerns around the world. Tissue engineering represents the only possibility to revert this scenario owing to its potential to regenerate or replace damaged tissues and organs. In a regeneration strategy, biomaterials play a key role promoting new tissue formation by providing adequate space for cell accommodation and appropriate biochemical and biophysical cues to support cell proliferation and differentiation. Among other physical cues, the architectural features of the biomaterial as a kind of instructive stimuli can influence cellular behaviors and guide cells towards a specific tissue organization. Thus, the optimization of biomaterial micro/nano architecture, through different manufacturing techniques, is a crucial strategy for a successful regenerative therapy. Over the last decades, many micro/nanostructured biomaterials have been developed to mimic the defined structure of ECM of various soft and hard tissues. This review intends to provide an overview of the relevant studies on micro/nanostructured scaffolds created for soft and hard tissue regeneration and highlights their biological effects, with a particular focus on striated muscle, cartilage, and bone tissue engineering applications.
Collapse
Affiliation(s)
- Felicia Carotenuto
- Dipartimento di Scienze Cliniche e Medicina Traslazionale, Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy;
- Department of Fusion and Technologies for Nuclear Safety and Security, Diagnostic and Metrology (FSN-TECFIS-DIM), ENEA, CR Frascati, 00044 Rome, Italy; (S.P.); (L.T.); (A.P.)
- Centro di Ricerca Interdipartimentale di Medicina Rigenerativa (CIMER), Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy; (F.D.M.); (E.T.); (M.L.T.)
- Correspondence: (F.C.); (P.D.N.)
| | - Sara Politi
- Department of Fusion and Technologies for Nuclear Safety and Security, Diagnostic and Metrology (FSN-TECFIS-DIM), ENEA, CR Frascati, 00044 Rome, Italy; (S.P.); (L.T.); (A.P.)
- Dipartimento di Scienze e Tecnologie Chimiche, Università Degli Studi di Roma “Tor Vergata”, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Arsalan Ul Haq
- Dipartimento di Scienze Cliniche e Medicina Traslazionale, Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy;
- Centro di Ricerca Interdipartimentale di Medicina Rigenerativa (CIMER), Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy; (F.D.M.); (E.T.); (M.L.T.)
| | - Fabio De Matteis
- Centro di Ricerca Interdipartimentale di Medicina Rigenerativa (CIMER), Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy; (F.D.M.); (E.T.); (M.L.T.)
- Dipartimento Ingegneria Industriale, Università Degli Studi di Roma “Tor Vergata”, Via del Politecnico, 00133 Roma, Italy
| | - Emanuela Tamburri
- Centro di Ricerca Interdipartimentale di Medicina Rigenerativa (CIMER), Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy; (F.D.M.); (E.T.); (M.L.T.)
- Dipartimento di Scienze e Tecnologie Chimiche, Università Degli Studi di Roma “Tor Vergata”, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Maria Letizia Terranova
- Centro di Ricerca Interdipartimentale di Medicina Rigenerativa (CIMER), Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy; (F.D.M.); (E.T.); (M.L.T.)
- Dipartimento di Scienze e Tecnologie Chimiche, Università Degli Studi di Roma “Tor Vergata”, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Laura Teodori
- Department of Fusion and Technologies for Nuclear Safety and Security, Diagnostic and Metrology (FSN-TECFIS-DIM), ENEA, CR Frascati, 00044 Rome, Italy; (S.P.); (L.T.); (A.P.)
- Centro di Ricerca Interdipartimentale di Medicina Rigenerativa (CIMER), Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy; (F.D.M.); (E.T.); (M.L.T.)
| | - Alessandra Pasquo
- Department of Fusion and Technologies for Nuclear Safety and Security, Diagnostic and Metrology (FSN-TECFIS-DIM), ENEA, CR Frascati, 00044 Rome, Italy; (S.P.); (L.T.); (A.P.)
| | - Paolo Di Nardo
- Dipartimento di Scienze Cliniche e Medicina Traslazionale, Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy;
- Centro di Ricerca Interdipartimentale di Medicina Rigenerativa (CIMER), Università Degli Studi di Roma “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy; (F.D.M.); (E.T.); (M.L.T.)
- Correspondence: (F.C.); (P.D.N.)
| |
Collapse
|
4
|
Donate R, Monzón M, Alemán-Domínguez ME. Additive manufacturing of PLA-based scaffolds intended for bone regeneration and strategies to improve their biological properties. E-POLYMERS 2020. [DOI: 10.1515/epoly-2020-0046] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractPolylactic acid (PLA) is one of the most commonly used materials in the biomedical sector because of its processability, mechanical properties and biocompatibility. Among the different techniques that are feasible to process this biomaterial, additive manufacturing (AM) has gained attention recently, as it provides the possibility of tuning the design of the structures. This flexibility in the design stage allows the customization of the parts in order to optimize their use in the tissue engineering field. In the recent years, the application of PLA for the manufacture of bone scaffolds has been especially relevant, since numerous studies have proven the potential of this biomaterial for bone regeneration. This review contains a description of the specific requirements in the regeneration of bone and how the state of the art have tried to address them with different strategies to develop PLA-based scaffolds by AM techniques and with improved biofunctionality.
Collapse
Affiliation(s)
- Ricardo Donate
- Departamento de Ingeniería Mecánica, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira s/n, 35017, Las Palmas, Spain
| | - Mario Monzón
- Departamento de Ingeniería Mecánica, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira s/n, 35017, Las Palmas, Spain
| | - María Elena Alemán-Domínguez
- Departamento de Ingeniería Mecánica, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira s/n, 35017, Las Palmas, Spain
| |
Collapse
|
5
|
Campana PT, Marletta A, Piovesan E, Francisco KJM, Neto FVR, Petrini L, Silva TR, Machado D, Basoli F, Oliveira ON, Licoccia S, Traversa E. Pulsatile Discharge from Polymeric Scaffolds: A Novel Method for Modulated Drug Release. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Patricia T. Campana
- School of Arts, Sciences and Humanities, University of São Paulo (USP), Arlindo Bettio Av., 1000, São Paulo, 03828-000, Brazil
| | - Alexandre Marletta
- Institute of Physics, Federal University of Uberlândia (UFU), João Naves de Ávila Av., 2121, Uberlândia 38408-100, Brazil
| | - Erick Piovesan
- Institute of Physics, Federal University of Uberlândia (UFU), João Naves de Ávila Av., 2121, Uberlândia 38408-100, Brazil
| | - Kelliton J. M. Francisco
- School of Arts, Sciences and Humanities, University of São Paulo (USP), Arlindo Bettio Av., 1000, São Paulo, 03828-000, Brazil
| | - Francisco V. R. Neto
- Institute of Physics, Federal University of Uberlândia (UFU), João Naves de Ávila Av., 2121, Uberlândia 38408-100, Brazil
| | - Leandro Petrini
- School of Arts, Sciences and Humanities, University of São Paulo (USP), Arlindo Bettio Av., 1000, São Paulo, 03828-000, Brazil
| | - Thiago R. Silva
- School of Arts, Sciences and Humanities, University of São Paulo (USP), Arlindo Bettio Av., 1000, São Paulo, 03828-000, Brazil
| | - Danilo Machado
- Institute of Physics, Federal University of Uberlândia (UFU), João Naves de Ávila Av., 2121, Uberlândia 38408-100, Brazil
| | - Francesco Basoli
- Department of Engineering, University of Rome “Campus Bio-Medico di Roma”, Alvaro del Portillo St., 21, Rome 00128, Italy
| | - Osvaldo N. Oliveira
- Sao Carlos Institute of Physics, University of São Paulo (USP), CP 369, 13560-970, Sao Carlos, SP, Brazil
| | - Silvia Licoccia
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, Via della Ricerca Scientifica St. Rome 00133, Italy
| | - Enrico Traversa
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu 611731, Sichuan, P. R. China
| |
Collapse
|
6
|
Chen SH, Wu BH, Fu JC, Wang GJ, Wan LS, Xu ZK. Vertically Oriented Microporous Membranes Prepared by Bidirectional Freezing. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2113-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
7
|
Morphological Evaluation of Soft Tissue Augmentation Using Porous Poly-DL-Lactic Acid With Straight Holes. IMPLANT DENT 2016; 25:751-757. [PMID: 27819848 DOI: 10.1097/id.0000000000000480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES This study investigated the biological reaction to porous poly-DL-lactic acid (PDLLA) scaffolds with holes for soft tissue augmentation. MATERIALS AND METHODS The control group was porous PDLLA with a diameter of 5.0 mm and a height of 2.0 mm. For the 2 test groups, 7 holes were drilled from the upper to the lower base of the scaffolds; the holes had diameters of 0.5 and 1.0 mm. A scaffold was placed in the periosteum of the cranium. The height and molecular weight (Mw) of the scaffolds were measured at 4 and 8 weeks. Hematoxylin and eosin staining was used to measure the connective tissue and blood vessel areas. RESULTS All groups had similar scaffold heights, but the Mw decreased significantly over time. There were significant differences in the connective tissue and blood vessel areas among the control, 0.5-mm, and 1.0-mm groups at the same time point. The soft tissue was increased by drilling holes in the scaffolds. CONCLUSION Porous poly-DL-lactic acid (PDLLA) contributed favorable prognosis for soft tissue. A wider hole was associated with increased connective tissue and blood vessel areas. The scaffold height and Mw were not impacted by size of the holes.
Collapse
|
8
|
Liang HQ, Ji KJ, Zha LY, Hu WB, Ou Y, Xu ZK. Polymer Membranes with Vertically Oriented Pores Constructed by 2D Freezing at Ambient Temperature. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14174-14181. [PMID: 27188247 DOI: 10.1021/acsami.6b03071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Polymer membranes with well-controlled and vertically oriented pores are of great importance in the applications for water treatment and tissue engineering. On the basis of two-dimensional solvent freezing, we report environmentally friendly facile fabrication of such membranes from a broad spectrum of polymer resources including poly(vinylidene fluoride), poly(l-lactic acid), polyacrylonitrile, polystyrene, polysulfone and polypropylene. Dimethyl sulfone, diphenyl sulfone, and arachidic acid are selected as green solvents crystallized in the polymer matrices under two-dimensional temperature gradients induced by water at ambient temperature. Parallel Monte Carlo simulations of the lattice polymers demonstrate that the directional process is feasible for each polymer holding suitable interaction with a corresponding solvent. As a typical example of this approach, poly(vinylidene fluoride) membranes exhibit excellent tensile strength, high optical transparence, and outstanding separation performance for the mixtures of yeasts and lactobacilli.
Collapse
Affiliation(s)
- Hong-Qing Liang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Ke-Jia Ji
- Key Laboratory of High Performance Polymer Materials and Technology, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
| | - Li-Yun Zha
- Key Laboratory of High Performance Polymer Materials and Technology, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
| | - Wen-Bing Hu
- Key Laboratory of High Performance Polymer Materials and Technology, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
| | - Yang Ou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China
| |
Collapse
|
9
|
Vitacolonna M, Belharazem D, Maier P, Hohenberger P, Roessner ED. In vivo Quantification of the Effects of Radiation and Presence of Hair Follicle Pores on the Proliferation of Fibroblasts in an Acellular Human Dermis in a Dorsal Skinfold Chamber: Relevance for Tissue Reconstruction following Neoadjuvant Therapy. PLoS One 2015; 10:e0125689. [PMID: 25955842 PMCID: PMC4425687 DOI: 10.1371/journal.pone.0125689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 03/23/2015] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION In neoadjuvant therapy, irradiation has a deleterious effect on neoangiogenesis. The aim of this study was to examine the post-implantation effects of neoadjuvant irradiation on the survival and proliferation of autologous cells seeded onto an acellular human dermis (hAD; Epiflex). Additionally, we examined the influence of dermal hair follicle pores on viability and proliferation. We used dorsal skinfold chambers implanted in rats and in-situ microscopy to quantify cell numbers over 9 days. METHODS 24 rats received a skinfold chamber and were divided into 2 main groups; irradiated and unirradiated. In the irradiated groups 20Gy were applied epicutaneously at the dorsum. Epiflex pieces were cut to size 5x5mm such that each piece had either one or more visible hair follicle pores, or no such visible pores. Fibroblasts were transduced lentiviral with a fluorescent protein for cell tracking. Matrices were seeded statically with 2.5x104 fluorescent fibroblasts and implanted into the chambers. In each of the two main groups, half of the rats received Epiflex with hair follicle pores and half received Epiflex without pores. Scaffolds were examined in-situ at 0, 3, 6 and 9 days after transplantation. Visible cells on the surface were quantified using ImageJ. RESULTS In all groups cell numbers were decreased on day 3. A treatment-dependent increase in cell numbers was observed at subsequent time points. Irradiation had an adverse effect on cell survival and proliferation. The number of cells detected in both irradiated and non-irradiated subjects was increased in those subjects that received transplants with hair follicle pores. DISCUSSION This in-vivo study confirms that radiation negatively affects the survival and proliferation of fibroblasts seeded onto a human dermis transplant. The presence of hair follicle pores in the dermis transplants is shown to have a positive effect on cell survival and proliferation even in irradiated subjects.
Collapse
Affiliation(s)
- Mario Vitacolonna
- Division of Surgical Oncology and Thoracic Surgery, Department of Surgery, University Medical Centre Mannheim, University of Heidelberg, Germany
| | - Djeda Belharazem
- Institute of Pathology, University Medical Centre Mannheim, University of Heidelberg, Germany
| | - Patrick Maier
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany
| | - Peter Hohenberger
- Division of Surgical Oncology and Thoracic Surgery, Department of Surgery, University Medical Centre Mannheim, University of Heidelberg, Germany
| | - Eric Dominic Roessner
- Division of Surgical Oncology and Thoracic Surgery, Department of Surgery, University Medical Centre Mannheim, University of Heidelberg, Germany
- * E-mail:
| |
Collapse
|
10
|
Pina S, Oliveira JM, Reis RL. Natural-based nanocomposites for bone tissue engineering and regenerative medicine: a review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:1143-1169. [PMID: 25580589 DOI: 10.1002/adma.201403354] [Citation(s) in RCA: 500] [Impact Index Per Article: 55.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/14/2014] [Indexed: 06/04/2023]
Abstract
Tissue engineering and regenerative medicine has been providing exciting technologies for the development of functional substitutes aimed to repair and regenerate damaged tissues and organs. Inspired by the hierarchical nature of bone, nanostructured biomaterials are gaining a singular attention for tissue engineering, owing their ability to promote cell adhesion and proliferation, and hence new bone growth, compared with conventional microsized materials. Of particular interest are nanocomposites involving biopolymeric matrices and bioactive nanosized fillers. Biodegradability, high mechanical strength, and osteointegration and formation of ligamentous tissue are properties required for such materials. Biopolymers are advantageous due to their similarities with extracellular matrices, specific degradation rates, and good biological performance. By its turn, calcium phosphates possess favorable osteoconductivity, resorbability, and biocompatibility. Herein, an overview on the available natural polymer/calcium phosphate nanocomposite materials, their design, and properties is presented. Scaffolds, hydrogels, and fibers as biomimetic strategies for tissue engineering, and processing methodologies are described. The specific biological properties of the nanocomposites, as well as their interaction with cells, including the use of bioactive molecules, are highlighted. Nanocomposites in vivo studies using animal models are also reviewed and discussed.
Collapse
Affiliation(s)
- Sandra Pina
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909, Caldas das Taipas, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | | | | |
Collapse
|
11
|
Janik H, Marzec M. A review: fabrication of porous polyurethane scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 48:586-91. [PMID: 25579961 DOI: 10.1016/j.msec.2014.12.037] [Citation(s) in RCA: 230] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 12/05/2014] [Accepted: 12/06/2014] [Indexed: 02/02/2023]
Abstract
The aim of tissue engineering is the fabrication of three-dimensional scaffolds that can be used for the reconstruction and regeneration of damaged or deformed tissues and organs. A wide variety of techniques have been developed to create either fibrous or porous scaffolds from polymers, metals, composite materials and ceramics. However, the most promising materials are biodegradable polymers due to their comprehensive mechanical properties, ability to control the rate of degradation and similarities to natural tissue structures. Polyurethanes (PUs) are attractive candidates for scaffold fabrication, since they are biocompatible, and have excellent mechanical properties and mechanical flexibility. PU can be applied to various methods of porous scaffold fabrication, among which are solvent casting/particulate leaching, thermally induced phase separation, gas foaming, emulsion freeze-drying and melt moulding. Scaffold properties obtained by these techniques, including pore size, interconnectivity and total porosity, all depend on the thermal processing parameters, and the porogen agent and solvents used. In this review, various polyurethane systems for scaffolds are discussed, as well as methods of fabrication, including the latest developments, and their advantages and disadvantages.
Collapse
Affiliation(s)
- H Janik
- Department of Polymers Technology, Chemical Faculty, Gdansk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdansk, Poland.
| | - M Marzec
- Department of Polymers Technology, Chemical Faculty, Gdansk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdansk, Poland
| |
Collapse
|
12
|
Seyedmahmoud R, Rainer A, Mozetic P, Maria Giannitelli S, Trombetta M, Traversa E, Licoccia S, Rinaldi A. A primer of statistical methods for correlating parameters and properties of electrospun poly(l-lactide) scaffolds for tissue engineering-PART 1: Design of experiments. J Biomed Mater Res A 2014; 103:91-102. [DOI: 10.1002/jbm.a.35153] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 01/28/2014] [Accepted: 02/18/2014] [Indexed: 01/15/2023]
Affiliation(s)
- Rasoul Seyedmahmoud
- Department of Chemical Science and Technology and NAST Center; University of Rome Tor Vergata; 00133 Rome Italy
| | - Alberto Rainer
- Tissue Engineering Laboratory; CIR-Center of Integrated Research, Università Campus Bio-Medico di Roma; 00128 Rome Italy
| | - Pamela Mozetic
- Tissue Engineering Laboratory; CIR-Center of Integrated Research, Università Campus Bio-Medico di Roma; 00128 Rome Italy
| | - Sara Maria Giannitelli
- Tissue Engineering Laboratory; CIR-Center of Integrated Research, Università Campus Bio-Medico di Roma; 00128 Rome Italy
| | - Marcella Trombetta
- Tissue Engineering Laboratory; CIR-Center of Integrated Research, Università Campus Bio-Medico di Roma; 00128 Rome Italy
| | - Enrico Traversa
- Department of Chemical Science and Technology and NAST Center; University of Rome Tor Vergata; 00133 Rome Italy
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST); Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Silvia Licoccia
- Department of Chemical Science and Technology and NAST Center; University of Rome Tor Vergata; 00133 Rome Italy
| | - Antonio Rinaldi
- Department of Chemical Science and Technology and NAST Center; University of Rome Tor Vergata; 00133 Rome Italy
- ENEA, CR Casaccia, Via Anguillarese 301; Santa Maria di Galeria, 00123 Rome Italy
- International Research Center for Mathematics & Mechanics of Complex Systems, University of L'Aquila; Via S. Pasquale, 04012 Cisterna di Latina (LT) Italy
| |
Collapse
|
13
|
Buizer AT, Veldhuizen AG, Bulstra SK, Kuijer R. Static versus vacuum cell seeding on high and low porosity ceramic scaffolds. J Biomater Appl 2013; 29:3-13. [PMID: 24327348 DOI: 10.1177/0885328213512171] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
An adequate cell seeding technique is essential for effective bone regeneration on cell seeded constructs of porous tricalcium phosphates. In previous studies, dynamic cell seeding, in which an external force is applied to seed cells on a biomaterial, resulted in more homogeneous cell seeding in low porosity scaffolds than static seeding. The optimal cell seeding technique for high porosity scaffolds has not been defined yet. Human mesenchymal stem cells were isolated from bone marrow and characterized. The cells were seeded on low porosity (45%) and high porosity (90%) tricalcium phosphate scaffolds using a static and a vacuum seeding technique. LIVE/DEAD® staining of the cell-scaffold complexes followed by confocal laser scanning microscopy was used to measure cell proliferation, cell distribution and cell viability one, three and seven days after seeding. Cell proliferation was also quantified using a DNA quantification assay. Neither static nor vacuum seeding resulted in homogeneous cell seeding on both low and high porosity scaffolds. Cell density was lower on the inside than on the outside of the scaffolds. On low porosity scaffolds, the vacuum method yielded the highest numbers of cells compared to the static method. Low porosity scaffolds were seeded most homogeneously using the static seeding method. Seven days after seeding, numbers of adherent cells were comparable for both scaffold types and independent of the cell seeding technique used. In conclusion, on high porosity scaffolds, static seeding results in more homogeneous cell seeding and it is easier to use than a vacuum seeding technique.
Collapse
Affiliation(s)
- Arina T Buizer
- Department of Orthopaedic Surgery, University of Groningen, University Medical Centre Groningen, The Netherlands Department of Biomedical Engineering, University of Groningen, University Medical Centre Groningen, The Netherlands
| | - Albert G Veldhuizen
- Department of Orthopaedic Surgery, University of Groningen, University Medical Centre Groningen, The Netherlands
| | - Sjoerd K Bulstra
- Department of Orthopaedic Surgery, University of Groningen, University Medical Centre Groningen, The Netherlands
| | - Roel Kuijer
- Department of Biomedical Engineering, University of Groningen, University Medical Centre Groningen, The Netherlands
| |
Collapse
|
14
|
Vitacolonna M, Belharazem D, Hohenberger P, Roessner ED. Effect of static seeding methods on the distribution of fibroblasts within human acellular dermis. Biomed Eng Online 2013; 12:55. [PMID: 23800135 PMCID: PMC3700771 DOI: 10.1186/1475-925x-12-55] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 06/11/2013] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION When developing tissue engineered solutions for existing clinical problems, cell seeding strategies should be optimized for desired cell distribution within matrices. The purpose of this investigation was to compare the effects of different static cell seeding methods and subsequent static cell culture for up to 12 days with regard to seeding efficiency and resulting cellular distribution in acellular dermis. MATERIALS AND METHODS The seeding methods tested were surface seeding of both unmodified and mechanically incised dermis, syringe injection of cell suspension, application of low-pressure and use of an ultrasonic bath to remove trapped air. The effect of "platelet derived growth factor" (PDGF) on surface seeding and low pressure seeding was also investigated. Scaffolds were incubated for up to 12 days and were histologically examined at days 0, 4, 8 and 12 for cell distribution and infiltration depth. The metabolic activity of the cells was quantified with the MTT assay at the same time points. RESULTS The 50 ml syringe degassing procedure produced the best results in terms of seeding efficiency, cell distribution, penetration depth and metabolic activity within the measured time frame. The injection and ultrasonic bath methods produced the lowest seeding efficiency. The incision method and the 20 ml syringe degassing procedure produced results that were not significantly different to those obtained with a standard static seeding method. CONCLUSION We postulate that air in the pores of the human acellular dermis (hAD) hinders cell seeding and subsequent infiltration. We achieved the highest seeding efficiency, homogeneity, infiltration depth and cell growth within the 12 day static culturing period by degassing the dermis using low- pressure created by a 50 ml syringe. We conclude that this method to eliminate trapped air provides the most effective method to seed cells and to allow cell proliferation in a natural scaffold.
Collapse
Affiliation(s)
- Mario Vitacolonna
- Division of Surgical Oncology and Thoracic Surgery, Department of Surgery, University Medical Centre Mannheim, Mannheim, Germany
| | | | | | | |
Collapse
|
15
|
Wang L, Li C, Chen Y, Dong S, Chen X, Zhou Y. Poly(lactic-co-glycolic) acid/nanohydroxyapatite scaffold containing chitosan microspheres with adrenomedullin delivery for modulation activity of osteoblasts and vascular endothelial cells. BIOMED RESEARCH INTERNATIONAL 2013; 2013:530712. [PMID: 23841075 PMCID: PMC3693124 DOI: 10.1155/2013/530712] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 05/07/2013] [Accepted: 05/17/2013] [Indexed: 11/29/2022]
Abstract
Adrenomedullin (ADM) is a bioactive regulatory peptide that affects migration and proliferation of diverse cell types, including endothelial cells, smooth muscle cells, and osteoblast-like cells. This study investigated the effects of sustained release of ADM on the modulation activity of osteoblasts and vascular endothelial cells in vitro. Chitosan microspheres (CMs) were developed for ADM delivery. Poly(lactic-co-glycolic) acid and nano-hydroxyapatite were used to prepare scaffolds containing microspheres with ADM. The CMs showed rough surface morphology and high porosity, and they were well-distributed. The scaffolds exhibited relatively uniform pore sizes with interconnected pores. The addition of CMs improved the mechanical properties of the scaffolds without affecting their high porosity. In vitro degradation tests indicated that the addition of CMs increased the water absorption of the scaffolds and inhibited pH decline of phosphate-buffered saline medium. The expression levels of osteogenic-related and angiogenic-related genes were determined in MG63 cells and in human umbilical vein endothelial cells cultured on the scaffolds, respectively. The expression levels of osteogenic-related and angiogenic-related proteins were also detected by western blot analysis. Their expression levels in cells were improved on the ADM delivery scaffolds at a certain time point. The in vitro evaluation suggests that the microsphere-scaffold system is suitable as a model for bone tissue engineering.
Collapse
Affiliation(s)
- Lin Wang
- VIP Integrated Department, School of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130021, China
| | - Chunyan Li
- Implant Center, School of Stomatology, Jilin University, Changchun 130021, China
| | - Yingxin Chen
- VIP Integrated Department, School of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130021, China
| | - Shujun Dong
- VIP Integrated Department, School of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130021, China
| | - Xuesi Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Avenue, Changchun 130022, China
| | - Yanmin Zhou
- Implant Center, School of Stomatology, Jilin University, Changchun 130021, China
| |
Collapse
|
16
|
Teplyuk NM. Near-to-perfect homeostasis: examples of universal aging rule which germline evades. J Cell Biochem 2012; 113:388-96. [PMID: 21928349 DOI: 10.1002/jcb.23366] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Aging is considered to be a progressive decline in an organism's functioning over time and is almost universal throughout the living world. Currently, many different aging mechanisms have been reported at all levels of biological organization, with a variety of biochemical, metabolic, and genetic pathways involved. Some of these mechanisms are common across species, and others work different, but each of them is constitutive. This review describes the common characteristics of the aging processes, which are consistent changes over time that involve either the accumulation or depletion of particular system components. These accumulations and depletions may result from imperfect homeostasis, which is the incomplete compensation of a particular biological process with another process evolved to compensate it. In accordance with disposable-soma theory, this imperfection in homeostasis may originate as a function of cell differentiation as early as in yeasts. It may result either from antagonistic pleiotropy mechanisms, or be simply negligible as a subject of natural selection if an adverse effect of the accumulation phenotypically manifests in organism's post-reproductive age. If this phenomenon holds true for many different functions it would lead to the occurrence of a wide variety of aging mechanisms, some of which are common among species, while others unique, because aging is the inherent property of most biological processes that have not yet evolved to be perfectly in balance. Examples of imperfect homeostasis mechanisms of aging, the ways in which germ line escapes from them, and the possibilities of anti-aging treatment are discussed in this review.
Collapse
Affiliation(s)
- Nadiya M Teplyuk
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
| |
Collapse
|
17
|
Siniscalco D, Giordano A, Galderisi U. Novel insights in basic and applied stem cell therapy. J Cell Physiol 2012; 227:2283-6. [PMID: 21780112 DOI: 10.1002/jcp.22945] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The achievement of novel findings in stem cell research were the subject of the meeting organized by Stem Cell Research Italy (SCR Italy) and by the International Society for Cellular Therapy-Europe (ISCT). Stem cell therapy represents great promise for the future of molecular and regenerative medicine. The use of several types of stem cells is a real opportunity to provide a valid approach to curing several untreatable human diseases. Before it is suitable for clinical applications, stem cell biology needs to be investigated further and in greater detail. Basic stem cell research could provide exact knowledge regarding stem cell action mechanisms, and pre-clinical research on stem cells on an in vivo model of disease provides scientific evidence for future human applications. Applied stem cell research is a promising new approach to handling several diseases. Along with tissue engineering, it offers a new and promising discipline that can help to manage human pathologies through stem cell therapy. All of these themes were discussed in this meeting, covering stem cell subtypes with their newest basic and applied research.
Collapse
Affiliation(s)
- Dario Siniscalco
- Department of Experimental Medicine, Division of Pharmacology L. Donatelli, Second University of Naples, Naples, Italy
| | | | | |
Collapse
|
18
|
Wang J, Cui W, Ye J, Ji S, Zhao X, Zhan L, Feng J, Zhang Z, Zhao Y. A cellular delivery system fabricated with autologous BMSCs and collagen scaffold enhances angiogenesis and perfusion in ischemic hind limb. J Biomed Mater Res A 2012; 100:1438-47. [PMID: 22378701 DOI: 10.1002/jbm.a.34081] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 12/30/2011] [Accepted: 01/17/2012] [Indexed: 01/07/2023]
Abstract
Although therapeutic cellular angiogenesis is effective for chronic ischemia, the optimal mode of cellular administration is still under exploration. This study aimed to develop a cellular delivery system to enhance the perfusion and angiogenesis in the ischemic hind limb. Collagen scaffold (CS) was prepared, and for morphology and toxicity analysis, bone marrow-derived mesenchymal stem cells (BMSCs) were isolated, expanded, filtrated, and seeded onto CS to construct BMSCs-CS. The ischemic hind limbs of rabbit models were implanted with autologous BMSCs-CS, CS, and autologous BMSCs; the untreated ischemic or normal animals were considered as the ischemic or normal control groups. Oxygen saturation parameters were regularly measured to determine the perfusion in the extremities. Histological examinations with hematoxylin and eosin immunostaining against von Willebrand factor and smooth muscle (SM) α-actin were performed for capillary and mature vessel evaluation. CS was a multiporous structure without cytotoxicity. At several intervals, the oxygen saturation ratio (OSR) in normal control was the highest. The OSRs in BMSCs-CS and CS were higher than that in BMSCs and ischemic control (p < 0.05); the OSR in BMSCs-CS group was higher than that in CS at 6 and 8 weeks (p < 0.05). The capillaries in BMSCs-CS and CS were higher than that in CS, BMSCs, and the ischemic or normal control (p < 0.05). The mature vessels in BMSCs-CS were higher than that in CS, BMSCs, and the ischemic or normal control (p < 0.05). The autologous cellular delivery system proved to be an effective approach for improving higher ischemic hind limb perfusion and angiogenesis as opposed to cellular therapy alone.
Collapse
Affiliation(s)
- Jinling Wang
- Department of Emergency, Zhongshan Hospital, Xiamen University, Xiamen, China
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Guarino V, Guaccio A, Guarnieri D, Netti PA, Ambrosio L. Binary system thermodynamics to control pore architecture of PCL scaffold via temperature-driven phase separation process. J Biomater Appl 2011; 27:241-54. [DOI: 10.1177/0885328211401056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The use of scaffold-aided strategies for the regeneration of biological tissues requires the fulfilment of an accurate architectural design, that is, micro and macrostructure, with the final goal of realizing architectures to adopt as guidance for those cell activities specific to the formation of novel tissues. Here, highly porous scaffolds made up of biodegradable poly(ε-caprolactone) (PCL) have been realized by thermally induced phase separation (TIPS). Two different polymer/solvent systems, derived by the dissolution of PCL in dioxane and DMSO respectively, were investigated. The aim was to demonstrate the high potential of TIPS technique, in imprinting specific pore features to the polymer matrices, by a conscious selection of polymer/solvent systems. The investigation of pore architecture by SEM/mercury intrusion porosimetry/image analyses, firstly allow to detect remarkable variations in porosity (from 92% to 78%,) and pore sizes, ranging from micro-scale ( ca 10 µm) to macro-scale (greater than 100 µm) as a function of the used polymer/solvent systems. Moreover, experimental and theoretical evidences referred to scaffold shaped in custom-made molds – a thin Teflon ring between two copper plates – allow exploring how the sensitivity of polymer solution features (i.e., crystallinity, thermal inertia) to the cooling temperature can affect the alignment of polymer phases and, ultimately, scaffold pore anisotropy. Analytical results supported by preliminary biological studies demonstrate the higher ability of PCL/dioxane solution to promote the formation of aligned pores which provide a morphological guidance to cell advance during the preliminary stage of culture. These findings, taken as a whole, put the basis for a better informed regeneration of structurally complex tissues based on the modeling of scaffold micro and macro-architecture by thermodynamic forces.
Collapse
Affiliation(s)
- Vincenzo Guarino
- Institute of Composite and Biomedical Materials, National Research Council of Italy (IMCB/CNR), Piazzale Tecchio 80 Napoli, Italy
| | - Angela Guaccio
- Interdisciplinary Research Centre on Biomaterials CRIB, University of Naples, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Daniela Guarnieri
- Interdisciplinary Research Centre on Biomaterials CRIB, University of Naples, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Paolo A Netti
- Interdisciplinary Research Centre on Biomaterials CRIB, University of Naples, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Luigi Ambrosio
- Institute of Composite and Biomedical Materials, National Research Council of Italy (IMCB/CNR), Piazzale Tecchio 80 Napoli, Italy
| |
Collapse
|
20
|
Pagliari S, Vilela-Silva AC, Forte G, Pagliari F, Mandoli C, Vozzi G, Pietronave S, Prat M, Licoccia S, Ahluwalia A, Traversa E, Minieri M, Di Nardo P. Cooperation of biological and mechanical signals in cardiac progenitor cell differentiation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:514-8. [PMID: 21254254 DOI: 10.1002/adma.201003479] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Indexed: 05/23/2023]
Affiliation(s)
- Stefania Pagliari
- Department of Internal Medicine, University of Rome "Tor Vergata", Italy
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|