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Characterization of Biological Properties of Dental Pulp Stem Cells Grown on an Electrospun Poly(l-lactide- co-caprolactone) Scaffold. MATERIALS 2022; 15:ma15051900. [PMID: 35269131 PMCID: PMC8911644 DOI: 10.3390/ma15051900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 02/15/2022] [Accepted: 03/01/2022] [Indexed: 02/01/2023]
Abstract
Poly(l-lactide-co-caprolactone) (PLCL) electrospun scaffolds with seeded stem cells have drawn great interest in tissue engineering. This study investigated the biological behavior of human dental pulp stem cells (hDPSCs) grown on a hydrolytically-modified PLCL nanofiber scaffold. The hDPSCs were seeded on PLCL, and their biological features such as viability, proliferation, adhesion, population doubling time, the immunophenotype of hDPSCs and osteogenic differentiation capacity were evaluated on scaffolds. The results showed that the PLCL scaffold significantly supported hDPSC viability/proliferation. The hDPSCs adhesion rate and spreading onto PLCL increased with time of culture. hDPSCs were able to migrate inside the PLCL electrospun scaffold after 7 days of seeding. No differences in morphology and immunophenotype of hDPSCs grown on PLCL and in flasks were observed. The mRNA levels of bone-related genes and their proteins were significantly higher in hDPSCs after osteogenic differentiation on PLCL compared with undifferentiated hDPSCs on PLCL. These results showed that the mechanical properties of a modified PLCL mat provide an appropriate environment that supports hDPSCs attachment, proliferation, migration and their osteogenic differentiation on the PLCL scaffold. The good PLCL biocompatibility with dental pulp stem cells indicates that this mat may be applied in designing a bioactive hDPSCs/PLCL construct for bone tissue engineering.
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Hadipour A, Bayati V, Rashno M, Orazizadeh M. Aligned Poly(ε-caprolactone) Nanofibers Superimposed on Decellularized Human Amniotic Membrane Promoted Myogenic Differentiation of Adipose Derived Stem Cells. CELL JOURNAL 2021; 23:603-611. [PMID: 34939752 PMCID: PMC8665975 DOI: 10.22074/cellj.2021.7261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 06/10/2020] [Indexed: 11/29/2022]
Abstract
Objective This study was designed to fabricate a suitable permanent scaffold for the normal aligned myotube formation
and improve the process of myogenic differentiation of selected stem cells.
Materials and Methods In this experimental study, an engineered scaffold composed of decellularized human amniotic
membrane (DHAM) and electrospun fibers of poly(ε-caprolactone) (PCL) was fabricated and characterized. PCL
nanofibers were superimposed on DHAM (PCL-DHAM) in two different patterns, including randomized fibers (Random)
and aligned fibers (Aligned). Adipose derived stem cells (ADSCs) were isolated from adult Wistar rats and cultured on
designed scaffold and induced to myotube differentiation. Using an MTT assay, the vitality of cells was determined.
Then, myogenic cell differentiation was assessed using scan electron microscopy (SEM), immunofluorescence assay,
and reverse transcription-polymerase chain reaction (RT-PCR).
Results The mechanical properties of engineered PCL-DHAM composite improved significantly compared to DHAM
as a control. The engineered PCL-DHAM promoted cell growth and high expression of myosin, Mhc2 and myogenin
and thus enhanced the myotube formation.
Conclusion These findings revealed that bio-composite membrane prepared from PCL nanofibers and DHAM, may
represent a promising biomaterial as a desirable scaffold for applying in the bioengineered muscle repair.
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Affiliation(s)
- Azam Hadipour
- Cellular and Molecular Research Center (CMRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Vahid Bayati
- Cellular and Molecular Research Center (CMRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Rashno
- Cellular and Molecular Research Center (CMRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahmoud Orazizadeh
- Cellular and Molecular Research Center (CMRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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3
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Victor SP, Selvam S, Sharma CP. Recent Advances in Biomaterials Science and Engineering Research in India: A Minireview. ACS Biomater Sci Eng 2019; 5:3-18. [PMID: 33405853 DOI: 10.1021/acsbiomaterials.8b00233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Biomedical research in health innovation and product development encompasses convergent technologies that primarily integrate biomaterials science and engineering at its core. Particularly, research in this area is instrumental for the implementation of biomedical devices (BMDs) that offer innovative solutions to help maintain and improve quality of life of patients worldwide. Despite achieving extraordinary success, implantable BMDs are still confronted with complex engineering and biological challenges that need to addressed for augmenting device performance and prolonging lifetime in vivo. Biofabrication of tissue constructs, designing novel biomaterials and employing rational biomaterial design approaches, surface engineering of implants, point of care diagnostics and micro/nano-based biosensors, smart drug delivery systems, and noninvasive imaging methodologies are among strategies exploited for improving clinical performance of implantable BMDs. In India, advances in biomedical technologies have dramatically advanced health care over the last few decades and the country is well-positioned to identify opportunities and translate emerging solutions. In this article, we attempt to capture the recent advances in biomedical research and development progressing across the country and highlight the significant research work accomplished in the areas of biomaterials science and engineering.
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Affiliation(s)
- Sunita P Victor
- Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Satelmond Palace Campus, Poojappura, Trivandrum 695012, India
| | - Shivaram Selvam
- Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Satelmond Palace Campus, Poojappura, Trivandrum 695012, India
| | - Chandra P Sharma
- Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Satelmond Palace Campus, Poojappura, Trivandrum 695012, India
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4
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Biomaterials in Tendon and Skeletal Muscle Tissue Engineering: Current Trends and Challenges. MATERIALS 2018; 11:ma11071116. [PMID: 29966303 PMCID: PMC6073924 DOI: 10.3390/ma11071116] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/20/2018] [Accepted: 06/25/2018] [Indexed: 12/17/2022]
Abstract
Tissue engineering is a promising approach to repair tendon and muscle when natural healing fails. Biohybrid constructs obtained after cells’ seeding and culture in dedicated scaffolds have indeed been considered as relevant tools for mimicking native tissue, leading to a better integration in vivo. They can also be employed to perform advanced in vitro studies to model the cell differentiation or regeneration processes. In this review, we report and analyze the different solutions proposed in literature, for the reconstruction of tendon, muscle, and the myotendinous junction. They classically rely on the three pillars of tissue engineering, i.e., cells, biomaterials and environment (both chemical and physical stimuli). We have chosen to present biomimetic or bioinspired strategies based on understanding of the native tissue structure/functions/properties of the tissue of interest. For each tissue, we sorted the relevant publications according to an increasing degree of complexity in the materials’ shape or manufacture. We present their biological and mechanical performances, observed in vitro and in vivo when available. Although there is no consensus for a gold standard technique to reconstruct these musculo-skeletal tissues, the reader can find different ways to progress in the field and to understand the recent history in the choice of materials, from collagen to polymer-based matrices.
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Cezar CA, Arany P, Vermillion SA, Seo BR, Vandenburgh HH, Mooney DJ. Timed Delivery of Therapy Enhances Functional Muscle Regeneration. Adv Healthc Mater 2017; 6:10.1002/adhm.201700202. [PMID: 28703489 PMCID: PMC5641972 DOI: 10.1002/adhm.201700202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/09/2017] [Indexed: 01/14/2023]
Abstract
Cell transplantation is a promising therapeutic strategy for the treatment of traumatic muscle injury in humans. Previous investigations have typically focused on the identification of potent cell and growth factor treatments and optimization of spatial control over delivery. However, the optimal time point for cell transplantation remains unclear. Here, this study reports how myoblast and morphogen delivery timed to coincide with specific phases of the inflammatory response affects donor cell engraftment and the functional repair of severely injured muscle. Delivery of a biomaterial-based therapy timed with the peak of injury-induced inflammation leads to potent early and long-term regenerative benefits. Diminished inflammation and fibrosis, enhanced angiogenesis, and increased cell engraftment are seen during the acute stage following optimally timed treatment. Over the long term, treatment during peak inflammation leads to enhanced functional regeneration, as indicated by reduced chronic inflammation and fibrosis along with increased tissue perfusion and muscle contractile force. Treatments initiated immediately after injury or after inflammation had largely resolved provided more limited benefits. These results demonstrate the importance of appropriately timing the delivery of biologic therapy in the context of muscle regeneration. Biomaterial-based timed delivery can likely be applied to other tissues and is of potential wide utility in regenerative medicine.
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Affiliation(s)
- Christine A Cezar
- Harvard School of Engineering and Applied Sciences, 29 Oxford Street, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, 60 Oxford Street, Suite 403, Cambridge, MA, 02138, USA
| | - Praveen Arany
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, 3435 Main Street, Buffalo, NY, 14260, USA
| | - Sarah A Vermillion
- Harvard School of Engineering and Applied Sciences, 29 Oxford Street, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, 60 Oxford Street, Suite 403, Cambridge, MA, 02138, USA
| | - Bo Ri Seo
- Harvard School of Engineering and Applied Sciences, 29 Oxford Street, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, 60 Oxford Street, Suite 403, Cambridge, MA, 02138, USA
| | - Herman H Vandenburgh
- Department of Pathology and Lab Medicine, Brown University, Providence, RI, 02912, USA
| | - David J Mooney
- Harvard School of Engineering and Applied Sciences, 29 Oxford Street, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, 60 Oxford Street, Suite 403, Cambridge, MA, 02138, USA
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6
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3D porous polyurethanes featured by different mechanical properties: Characterization and interaction with skeletal muscle cells. J Mech Behav Biomed Mater 2017; 75:147-159. [PMID: 28734256 DOI: 10.1016/j.jmbbm.2017.07.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 07/10/2017] [Accepted: 07/13/2017] [Indexed: 02/07/2023]
Abstract
The fabrication of biomaterials for interaction with muscle cells has attracted significant interest in the last decades. However, 3D porous scaffolds featured by a relatively low stiffness (almost matching the natural muscle one) and highly stable in response to cyclic loadings are not available at present, in this context. This work describes 3D polyurethane-based porous scaffolds featured by different mechanical properties. Biomaterial stiffness was finely tuned by varying the cross-linking degree of the starting foam. Compression tests revealed, for the softest material formulation, stiffness values close to the ones possessed by natural skeletal muscles. The materials were also characterized in terms of local nanoindenting, rheometric properties and long-term stability through cyclic compressions, in a strain range reflecting the contraction extent of natural muscles. Preliminary in vitro tests revealed a preferential adhesion of C2C12 skeletal muscle cells over the softer, rougher and more porous structures. All the material formulations showed low cytotoxicity.
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Jana S, Lan Levengood SK, Zhang M. Anisotropic Materials for Skeletal-Muscle-Tissue Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:10588-10612. [PMID: 27865007 PMCID: PMC5253134 DOI: 10.1002/adma.201600240] [Citation(s) in RCA: 159] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 06/27/2016] [Indexed: 05/19/2023]
Abstract
Repair of damaged skeletal-muscle tissue is limited by the regenerative capacity of the native tissue. Current clinical approaches are not optimal for the treatment of large volumetric skeletal-muscle loss. As an alternative, tissue engineering represents a promising approach for the functional restoration of damaged muscle tissue. A typical tissue-engineering process involves the design and fabrication of a scaffold that closely mimics the native skeletal-muscle extracellular matrix (ECM), allowing organization of cells into a physiologically relevant 3D architecture. In particular, anisotropic materials that mimic the morphology of the native skeletal-muscle ECM, can be fabricated using various biocompatible materials to guide cell alignment, elongation, proliferation, and differentiation into myotubes. Here, an overview of fundamental concepts associated with muscle-tissue engineering and the current status of muscle-tissue-engineering approaches is provided. Recent advances in the development of anisotropic scaffolds with micro- or nanoscale features are reviewed, and how scaffold topographical, mechanical, and biochemical cues correlate to observed cellular function and phenotype development is examined. Finally, some recent developments in both the design and utility of anisotropic materials in skeletal-muscle-tissue engineering are highlighted, along with their potential impact on future research and clinical applications.
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Affiliation(s)
- Soumen Jana
- Department of Materials Science & Engineering, University of Washington, Seattle, Washington 98195, USA
| | - Sheeny K. Lan Levengood
- Department of Materials Science & Engineering, University of Washington, Seattle, Washington 98195, USA
| | - Miqin Zhang
- Department of Materials Science & Engineering, University of Washington, Seattle, Washington 98195, USA
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8
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Salerno A, Guarino V, Oliviero O, Ambrosio L, Domingo C. Bio-safe processing of polylactic-co-caprolactone and polylactic acid blends to fabricate fibrous porous scaffolds for in vitro mesenchymal stem cells adhesion and proliferation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:512-21. [PMID: 27040246 DOI: 10.1016/j.msec.2016.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 02/09/2016] [Accepted: 03/06/2016] [Indexed: 10/22/2022]
Abstract
In this study, the design and fabrication of porous scaffolds, made of blends of polylactic-co-caprolactone (PLC) and polylactic acid (PLA) polymers, for tissue engineering applications is reported. The scaffolds are prepared by means of a bio-safe thermally induced phase separation (TIPS) approach with or without the addition of NaCl particles used as particulate porogen. The scaffolds are characterized to assess their crystalline structure, morphology and mechanical properties, and the texture of the pores and the pore size distribution. Moreover, in vitro human mesenchymal stem cells (hMSCs) culture tests have been carried out to demonstrate the biocompatibility of the scaffolds. The results of this study demonstrate that all of the scaffold materials processed by means of TIPS process are semi-crystalline. Furthermore, the blend composition affected polymer crystallization and, in turn, the nano and macro-structural properties of the scaffolds. Indeed, neat PLC and neat PLA crystallize into globular and randomly arranged sub micro-size scale fibrous conformations, respectively. Concomitantly, the addition of NaCl particles during the fabrication route allows for the creation of an interconnected network of large pores inside the primary structure while resulted in a significant decrease of scaffolds mechanical response. Finally, the results of cell culture tests demonstrate that both the micro and macro-structure of the scaffold affect the in vitro hMSCs adhesion and proliferation.
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Affiliation(s)
- Aurelio Salerno
- Centre for Advanced Biomaterials for Health Care, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Napoli, Italy; Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus de la UAB s/n, Bellaterra 08193, Spain.
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, V.le Kennedy 54, Pad 20, Mostra d'Oltremare, 80125 Naples, Italy
| | - Olimpia Oliviero
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, V.le Kennedy 54, Pad 20, Mostra d'Oltremare, 80125 Naples, Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, V.le Kennedy 54, Pad 20, Mostra d'Oltremare, 80125 Naples, Italy
| | - Concepción Domingo
- Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus de la UAB s/n, Bellaterra 08193, Spain
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Qiang N, Xie F, Liang H, Li XF, Tang S, Zhu JX. SYNTHESIS OF POLY[(ε-CL)- co-(GA-alt- L-Asp)] COPOLYMER AND EFFECTS ON CELLS AFTER COUPLING WITH SMALL PEPTIDE. BIOMEDICAL ENGINEERING: APPLICATIONS, BASIS AND COMMUNICATIONS 2015. [DOI: 10.4015/s1016237215500532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A novel poly[([Formula: see text]-CL)-co-(GA-alt-L-Asp)] with improved hydrophilicity was prepared. The monomer 3(S)-[(benzyloxycarbony)methyl]-1,4-dioxane-2,5-dione (BMD) was prepared from aspartic acid. The polymer was obtained by ring-opening polymerization of [Formula: see text]-caprolactone ([Formula: see text]-CL) and BMD. Poly[([Formula: see text]-CL)-co-(GA-alt-L-Asp)] was synthesized by deprotection. The structure and properties of the polymer were characterized using 1H nuclear magnetic resonance, gel permeation chromatography, and differential scanning calorimetry. The melting point and melting enthalpy of the polymer decreased with the increase of BMD. The structural regularity of polycaprolactone was destroyed by the BMD. A laminin-derived peptide [i.e., Arg-Gly-Asp (RGD)] was covalently tethered to the carboxyl groups and the peptide-grafted films. Results indicated that the addition of RGD had beneficial effects for cell growth, as shown by scanning electron microscopy.
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Affiliation(s)
- Na Qiang
- Department of Chemical Engineering, Huizhou University, Huizhou 516007, P. R. China
| | - Fang Xie
- Department of Chemical Engineering, Huizhou University, Huizhou 516007, P. R. China
| | - Hao Liang
- Department of Chemical Engineering, Huizhou University, Huizhou 516007, P. R. China
| | - Xian-Feng Li
- Department of Chemical Engineering, Huizhou University, Huizhou 516007, P. R. China
| | - Shuo Tang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Ji-Xiang Zhu
- Department of Biomedical Engineering, Guangzhou Medical University, Guangzhou 510182, P. R. China
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Christ GJ, Siriwardane ML, de Coppi P. Engineering muscle tissue for the fetus: getting ready for a strong life. Front Pharmacol 2015; 6:53. [PMID: 25914643 PMCID: PMC4392316 DOI: 10.3389/fphar.2015.00053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 03/03/2015] [Indexed: 11/17/2022] Open
Abstract
Congenital malformations frequently involve either skeletal, smooth or cardiac tissues. When large parts of those tissues are damaged, the repair of the malformations is challenged by the fact that so much autologous tissue is missing. Current treatments require the use of prostheses or other therapies and are associated with a significant morbidity and mortality. Nonetheless, affected children have generally good survival rates and mostly normal schooling. As such, new therapeutic modalities need to represent significant improvements with clear safety profiles. Regenerative medicine and tissue engineering technologies have the potential to dramatically improve the treatment of any disease or disorder involving a lack of viable tissue. With respect to congenital soft tissue anomalies, the development of, for example, implantable muscle constructs would provide not only the usual desired elasticity and contractile proprieties, but should also be able to grow with the fetus and/or in the postnatal life. Such an approach would eliminate the need for multiple surgeries. However, the more widespread clinical applications of regenerative medicine and tissue engineering technologies require identification of the optimal indications, as well as further elucidation of the precise mechanisms and best methods (cells, scaffolds/biomaterials) for achieving large functional tissue regeneration in those clinical indications. In short, despite some amazing scientific progress, significant safety and efficacy hurdles remain. However, the rapid preclinical advances in the field bode well for future applications. As such, translational researchers and clinicians alike need be informed and prepared to utilize these new techniques for the benefit of their patients, as soon as they are available. To this end, we review herein, the clinical need(s), potential applications, and the relevant preclinical studies that are currently guiding the field toward novel therapeutics.
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Affiliation(s)
- George J Christ
- Wake Forest Institute for Regenerative Medicine Winston-Salem, NC, USA ; Laboratory of Regenerative Therapeutics, Deptartment of Biomedical Engineering and Orthopaedic Surgery, University of Virginia Charlottesville, VA, USA
| | | | - Paolo de Coppi
- Developmental Biology and Cancer Programme, UCL Institute of Child Health, Great Ormond Street Hospital London, UK
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Qazi TH, Mooney DJ, Pumberger M, Geissler S, Duda GN. Biomaterials based strategies for skeletal muscle tissue engineering: existing technologies and future trends. Biomaterials 2015; 53:502-21. [PMID: 25890747 DOI: 10.1016/j.biomaterials.2015.02.110] [Citation(s) in RCA: 262] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 02/18/2015] [Accepted: 02/24/2015] [Indexed: 12/20/2022]
Abstract
Skeletal muscles have a robust capacity to regenerate, but under compromised conditions, such as severe trauma, the loss of muscle functionality is inevitable. Research carried out in the field of skeletal muscle tissue engineering has elucidated multiple intrinsic mechanisms of skeletal muscle repair, and has thus sought to identify various types of cells and bioactive factors which play an important role during regeneration. In order to maximize the potential therapeutic effects of cells and growth factors, several biomaterial based strategies have been developed and successfully implemented in animal muscle injury models. A suitable biomaterial can be utilized as a template to guide tissue reorganization, as a matrix that provides optimum micro-environmental conditions to cells, as a delivery vehicle to carry bioactive factors which can be released in a controlled manner, and as local niches to orchestrate in situ tissue regeneration. A myriad of biomaterials, varying in geometrical structure, physical form, chemical properties, and biofunctionality have been investigated for skeletal muscle tissue engineering applications. In the current review, we present a detailed summary of studies where the use of biomaterials favorably influenced muscle repair. Biomaterials in the form of porous three-dimensional scaffolds, hydrogels, fibrous meshes, and patterned substrates with defined topographies, have each displayed unique benefits, and are discussed herein. Additionally, several biomaterial based approaches aimed specifically at stimulating vascularization, innervation, and inducing contractility in regenerating muscle tissues are also discussed. Finally, we outline promising future trends in the field of muscle regeneration involving a deeper understanding of the endogenous healing cascades and utilization of this knowledge for the development of multifunctional, hybrid, biomaterials which support and enable muscle regeneration under compromised conditions.
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Affiliation(s)
- Taimoor H Qazi
- Julius Wolff Institute, Charité - Universitätsmedizin Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany.
| | - David J Mooney
- School of Engineering and Applied Sciences, Harvard University, Cambridge, USA.
| | - Matthias Pumberger
- Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany; Center for Musculoskeletal Surgery, Charitè - Universitätsmedizin Berlin, Germany.
| | - Sven Geissler
- Julius Wolff Institute, Charité - Universitätsmedizin Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany; Berlin-Brandenburg Center for Regenerative Therapies, Berlin, Germany.
| | - Georg N Duda
- Julius Wolff Institute, Charité - Universitätsmedizin Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany; Berlin-Brandenburg Center for Regenerative Therapies, Berlin, Germany.
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Kloskowski T, Jundziłł A, Kowalczyk T, Nowacki M, Bodnar M, Marszałek A, Pokrywczyńska M, Frontczak-Baniewicz M, Kowalewski TA, Chłosta P, Drewa T. Ureter regeneration-the proper scaffold has to be defined. PLoS One 2014; 9:e106023. [PMID: 25162415 PMCID: PMC4146565 DOI: 10.1371/journal.pone.0106023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 07/27/2014] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to compare two different acellular scaffolds: natural and synthetic, for urinary conduit construction and ureter segment reconstruction. Acellular aortic arch (AAM) and poly(L-lactide-co-caprolactone) (PLCL) were used in 24 rats for ureter reconstruction in both tested groups. Follow-up period was 4 weeks. Intravenous pyelography, histological and immunohistochemical analysis were performed. All animals survived surgical procedures. Patent uretero-conduit junction was observed only in one case using PLCL. In case of ureter segment reconstruction ureters were patent in one case using AAM and in four cases using PLCL scaffolds. Regeneration of urothelium layer and focal regeneration of smooth muscle layer was observed on both tested scaffolds. Obtained results indicates that synthetic acellular PLCL scaffolds showed better properties for ureter reconstruction than naturally derived acellular aortic arch.
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Affiliation(s)
- Tomasz Kloskowski
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
- * E-mail:
| | - Arkadiusz Jundziłł
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Tomasz Kowalczyk
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Maciej Nowacki
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Magdalena Bodnar
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Andrzej Marszałek
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Marta Pokrywczyńska
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | | | - Tomasz A. Kowalewski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Piotr Chłosta
- Urology Department, Jagiellonian University, Krakow, Poland
| | - Tomasz Drewa
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
- Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
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13
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Gibot L, Lemelle A, Till U, Moukarzel B, Mingotaud AF, Pimienta V, Saint-Aguet P, Rols MP, Gaucher M, Violleau F, Chassenieux C, Vicendo P. Polymeric micelles encapsulating photosensitizer: structure/photodynamic therapy efficiency relation. Biomacromolecules 2014; 15:1443-55. [PMID: 24552313 DOI: 10.1021/bm5000407] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Various polymeric micelles were formed from amphiphilic block copolymers, namely, poly(ethyleneoxide-b-ε-caprolactone), poly(ethyleneoxide-b-d,l-lactide), and poly(ethyleneoxide-b-styrene). The micelles were characterized by static and dynamic light scattering, electron microscopy, and asymmetrical flow field-flow fractionation. They all displayed a similar size close to 20 nm. The influence of the chemical structure of the block copolymers on the stability upon dilution of the polymeric micelles was investigated to assess their relevance as carriers for nanomedicine. In the same manner, the stability upon aging was assessed by FRET experiments under various experimental conditions (alone or in the presence of blood proteins). In all cases, a good stability over 48 h for all systems was encountered, with PDLLA copolymer-based systems being the first to release their load slowly. The cytotoxicity and photocytotoxicity of the carriers were examined with or without their load. Lastly, the photodynamic activity was assessed in the presence of pheophorbide a as photosensitizer on 2D and 3D tumor cell culture models, which revealed activity differences between the 2D and 3D systems.
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Affiliation(s)
- Laure Gibot
- Equipe de Biophysique Cellulaire, IPBS-CNRS UMR 5089 , 205 route de Narbonne, BP 64182, 31077 Toulouse Cedex, France
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