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Sprenger L, Lu HH, Trippmacher S, Mansfeld U, Milkin P, Ionov L, Papastavrou G, Boccaccini AR, Salehi S. Composite Alginate Dialdehyde-Gelatin (ADA-GEL) Hydrogel Containing Short Ribbon-Shaped Fillers for Skeletal Muscle Tissue Biofabrication. ACS APPLIED MATERIALS & INTERFACES 2024; 16:44605-44622. [PMID: 39159061 DOI: 10.1021/acsami.4c10751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
Skeletal muscle tissue can be severely damaged by disease or trauma beyond its ability to self-repair, necessitating the further development of biofabrication and tissue-engineering tools for reconstructive processes. Hence, in this study, a composite bioink of oxidized alginate (ADA) and gelatin (GEL) including cell-laden ribbon-shaped fillers is used for enhancing cell alignment and the formation of an anisotropic structure. Different plasma treatments combined with protein coatings were evaluated for the improvement of cell adhesion to poly(lactic-co-glycolic acid) (PLGA) ribbon surfaces. Oxygen plasma activation of 30 W for 5 min showed high immobilization of fibronectin as a protein coating on the PLGA ribbon surface, which resulted in enhanced cell adhesion and differentiation of muscle cells. Furthermore, the effect of various concentrations of CaCl2 solution, used for ionic cross-linking of ADA, on ADA-GEL physical and mechanical properties as well as encapsulated C2C12 cell viability and proliferation behavior was investigated. The pore area was measured via two approaches, cryofixation and lyophilization, which, in accordance with degradation tests and mechanical analysis, showed that 60 mM CaCl2 concentration is the optimum range for cross-linking of the formulation of ADA 2.5%w/v-GEL 3.75%w/v. These cross-linked hydrogels showed a compression modulus of 11.5 kPa (similar to the native skeletal muscle tissue), a high viability of C2C12 muscle cells (>80%), and a high proliferation rate during 7 days of culture. Rheological characterization of the ADA-GEL composite hydrogel containing short fillers (100 μm long) showed its suitability as a bioink with shear-thinning and flow behavior compared to ADA-GEL.
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Affiliation(s)
- Lys Sprenger
- Department of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann Str. 1, 95447 Bayreuth, Germany
| | - Hsuan-Heng Lu
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
| | - Steffen Trippmacher
- Department of Physical Chemistry II, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Ulrich Mansfeld
- Bavarian Polymer Institute (BPI), KeyLAB, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Pavel Milkin
- Department of Biofabrication, Faculty of Engineering Sciences, University of Bayreuth, Ludwig-Thoma-Straße 36A, 95447 Bayreuth, Germany
| | - Leonid Ionov
- Department of Biofabrication, Faculty of Engineering Sciences, University of Bayreuth, Ludwig-Thoma-Straße 36A, 95447 Bayreuth, Germany
- Bavarian Polymer Institute (BPI), University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Georg Papastavrou
- Department of Physical Chemistry II, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
| | - Sahar Salehi
- Department of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann Str. 1, 95447 Bayreuth, Germany
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2
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Castelanich DG, Parra Hernández LA, Chacín M. Successfully Nonsurgical Epidermoid Cyst Management with Recombinant Hydrolytic Enzymes: A Case Report. Clin Cosmet Investig Dermatol 2024; 17:1815-1822. [PMID: 39139846 PMCID: PMC11321352 DOI: 10.2147/ccid.s442955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 05/28/2024] [Indexed: 08/15/2024]
Abstract
Introduction Epidermoid cysts (E.C.s), also known as sebaceous cysts, are benign asymptomatic subepidermal nodules filled with keratin material. These cysts originate from the follicular infundibulum, which when obstructed by keratin, results in cyst formation. Conventionally, E.C.s have been managed surgically with a high success rate and minimal complications. In this report, we present the successful resolution of an E.C. using a minimally invasive technique involving the intralesional injection of recombinant hydrolytic enzymes like hyaluronidase, collagenase, and lipase. Case Presentation A 44-year-old woman with no significant medical history presented to the clinic with a mass on her right cheek that had been evolving for over 10 years. Skin and soft tissue ultrasound confirmed the presence of an E.C. of 9.3×6.6 × 9.3 mm. Owing to the size and location of the cyst, a decision was made to infiltrate the lesion with recombinant enzymes. Remarkably, significant clinical improvement was observed on Day 21, and complete dissolution of the E.C. occurred 40 days after the initial intervention. Importantly, no recurrences were observed during the 4-year follow-up period. Conclusion Intralesional administration of hydrolytic enzymes represents an innovative technique in the management of E.C.s. However, further controlled studies are required to determine the efficacy and safety of this procedure.
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Affiliation(s)
- Desiree Giselle Castelanich
- Sociedad Argentina de Dermatología, Buenos Aires, Argentina
- Sociedad Internacional de Rejuvenecimiento Facial No Quirúrgico (SIRF), Barranquilla, Colombia
| | | | - Maricarmen Chacín
- Universidad Simón Bolívar. Facultad de Ciencias de la Salud, Centro de Investigaciones de Ciencias de la Vida (CICV), Barranquilla, Colombia
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3
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L E, Wilfred N, S K, Halder G, Haldar D, Patel AK, Singhania RR, Pandey A. Biodegradation of microplastics: Advancement in the strategic approaches towards prevention of its accumulation and harmful effects. CHEMOSPHERE 2024; 346:140661. [PMID: 37951399 DOI: 10.1016/j.chemosphere.2023.140661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Microplastics (MPs) are plastic particles in a size ranging from 1 mm to 5 mm in diameter, and are formed by the breakdown of plastics from different sources. They are emerging environmental pollutants, and pose a great threat to living organisms. Improper disposal, inadequate recycling, and excessive use of plastic led to the accumulation of MP in the environment. The degradation of MP can be done either biotically or abiotically. In view of that, this article discusses the molecular mechanisms that involve bacteria, fungi, and enzymes to degrade the MP polymers as the primary objective. As per as abiotic degradation is concerned, two different modes of MP degradation were discussed in order to justify the effectiveness of biotic degradation. Finally, this review is concluded with the challenges and future perspectives of MP biodegradation based on the existing research gaps. The main objective of this article is to provide the readers with clear insight, and ideas about the recent advancements in MP biodegradation.
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Affiliation(s)
- Emisha L
- Division of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India
| | - Nishitha Wilfred
- Division of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India
| | - Kavitha S
- Division of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India
| | - Gopinath Halder
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, 713209, West Bengal, India
| | - Dibyajyoti Haldar
- Division of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India.
| | - Anil Kumar Patel
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow, 226029, India
| | - Reeta Rani Singhania
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
| | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, 226029, India; Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226 001, India; Kyung Hee University, Kyung Hee Dae Ro 26, Seoul, 02447, Republic of Korea; Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248 007, Uttarakhand, India
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4
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Chauhan A, Alam MA, Kaur A, Malviya R. Advancements and Utilizations of Scaffolds in Tissue Engineering and Drug Delivery. Curr Drug Targets 2023; 24:13-40. [PMID: 36221880 DOI: 10.2174/1389450123666221011100235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/02/2022] [Accepted: 03/09/2022] [Indexed: 11/22/2022]
Abstract
The drug development process requires a thorough understanding of the scaffold and its three-dimensional structure. Scaffolding is a technique for tissue engineering and the formation of contemporary functioning tissues. Tissue engineering is sometimes referred to as regenerative medicine. They also ensure that drugs are delivered with precision. Information regarding scaffolding techniques, scaffolding kinds, and other relevant facts, such as 3D nanostructuring, are discussed in depth in this literature. They are specific and demonstrate localized action for a specific reason. Scaffold's acquisition nature and flexibility make it a new drug delivery technology with good availability and structural parameter management.
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Affiliation(s)
- Akash Chauhan
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | - Md Aftab Alam
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | - Awaneet Kaur
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | - Rishabha Malviya
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
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Serrano-Aroca Á, Cano-Vicent A, Sabater i Serra R, El-Tanani M, Aljabali A, Tambuwala MM, Mishra YK. Scaffolds in the microbial resistant era: Fabrication, materials, properties and tissue engineering applications. Mater Today Bio 2022; 16:100412. [PMID: 36097597 PMCID: PMC9463390 DOI: 10.1016/j.mtbio.2022.100412] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/08/2022] Open
Abstract
Due to microbial infections dramatically affect cell survival and increase the risk of implant failure, scaffolds produced with antimicrobial materials are now much more likely to be successful. Multidrug-resistant infections without suitable prevention strategies are increasing at an alarming rate. The ability of cells to organize, develop, differentiate, produce a functioning extracellular matrix (ECM) and create new functional tissue can all be controlled by careful control of the extracellular microenvironment. This review covers the present state of advanced strategies to develop scaffolds with antimicrobial properties for bone, oral tissue, skin, muscle, nerve, trachea, cardiac and other tissue engineering applications. The review focuses on the development of antimicrobial scaffolds against bacteria and fungi using a wide range of materials, including polymers, biopolymers, glass, ceramics and antimicrobials agents such as antibiotics, antiseptics, antimicrobial polymers, peptides, metals, carbon nanomaterials, combinatorial strategies, and includes discussions on the antimicrobial mechanisms involved in these antimicrobial approaches. The toxicological aspects of these advanced scaffolds are also analyzed to ensure future technological transfer to clinics. The main antimicrobial methods of characterizing scaffolds’ antimicrobial and antibiofilm properties are described. The production methods of these porous supports, such as electrospinning, phase separation, gas foaming, the porogen method, polymerization in solution, fiber mesh coating, self-assembly, membrane lamination, freeze drying, 3D printing and bioprinting, among others, are also included in this article. These important advances in antimicrobial materials-based scaffolds for regenerative medicine offer many new promising avenues to the material design and tissue-engineering communities. Antibacterial, antifungal and antibiofilm scaffolds. Antimicrobial scaffold fabrication techniques. Antimicrobial biomaterials for tissue engineering applications. Antimicrobial characterization methods of scaffolds. Bone, oral tissue, skin, muscle, nerve, trachea, cardiac, among other applications.
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6
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Oral Delivery of Nucleic Acids with Passive and Active Targeting to the Intestinal Tissue Using Polymer-Based Nanocarriers. Pharmaceutics 2021; 13:pharmaceutics13071075. [PMID: 34371766 PMCID: PMC8309160 DOI: 10.3390/pharmaceutics13071075] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/28/2021] [Accepted: 07/09/2021] [Indexed: 12/13/2022] Open
Abstract
Despite the apparent advantages for long-term treatment and local therapies against intestinal diseases, the oral delivery of nucleic acids has been challenging due to unfavorable physiological conditions for their stability. In this study, a novel nanodelivery system of PEG-PCL nanoparticles with encapsulated nucleic acids–mannosylated PEI (Man-PEI) complexes was developed for intestinal delivery. We complexed model nucleic acids with Man-PEI at the optimal N/P ratio of 20:1 for in vitro and in vivo analyses. Cells were transfected in vitro and analyzed for gene expression, receptor-mediated uptake, and PEG-PCL nanoparticles’ toxicity. We also evaluated the nucleic acid’s stability in the nanocarrier during formulation, and under simulated gastrointestinal environments or the presence of nucleases. Finally, we assessed the biodistribution for the PEG-PCL nanoparticles with encapsulated complexes and their ability to transfect intestinal cells in vivo. Nucleic acids complexed with Man-PEI were protected from degradation against nucleases. In comparison to the parent compound PEI, Man-PEI transfected the cells with an overall higher potency. Competition assay indicated receptor-mediated endocytosis promoted by mannose receptors. The PEG-PCL nanoparticles with Man-PEI/plasmid complexes indicated minimal cytotoxicity. The nanocarrier successfully protected the complexes in a simulated gastric fluid environment and released them in a simulated intestinal fluid environment, promoted by the presence of lipases. The oral administration of the PEG-PCL nanoparticles with encapsulated Man-PEI/plasmid complexes transfected intestinal cells with the plasmid in vivo, while presenting a time-dependent progression through the intestines. Conclusively, our carrier system can deliver genetic material to the GI tract and actively target mannose receptor overexpressing cells.
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7
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Raveau S, Jordana F. Tissue Engineering and Three-Dimensional Printing in Periodontal Regeneration: A Literature Review. J Clin Med 2020; 9:jcm9124008. [PMID: 33322447 PMCID: PMC7763147 DOI: 10.3390/jcm9124008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023] Open
Abstract
The three-dimensional printing of scaffolds is an interesting alternative to the traditional techniques of periodontal regeneration. This technique uses computer assisted design and manufacturing after CT scan. After 3D modelling, individualized scaffolds are printed by extrusion, selective laser sintering, stereolithography, or powder bed inkjet printing. These scaffolds can be made of one or several materials such as natural polymers, synthetic polymers, or bioceramics. They can be monophasic or multiphasic and tend to recreate the architectural structure of the periodontal tissue. In order to enhance the bioactivity and have a higher regeneration, the scaffolds can be embedded with stem cells and/or growth factors. This new technique could enhance a complete periodontal regeneration. This review summarizes the application of 3D printed scaffolds in periodontal regeneration. The process, the materials and designs, the key advantages and prospects of 3D bioprinting are highlighted, providing new ideas for tissue regeneration.
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Affiliation(s)
- Simon Raveau
- Dental Faculty, University of Nantes, 44000 Nantes, France;
- Dentistry Department, University Health Centre, 44000 Nantes, France
| | - Fabienne Jordana
- Dental Faculty, University of Nantes, 44000 Nantes, France;
- Dentistry Department, University Health Centre, 44000 Nantes, France
- Correspondence: ; Tel.: +33-24041-2928
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8
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Jian Z, Zhuang T, Qinyu T, Liqing P, Kun L, Xujiang L, Diaodiao W, Zhen Y, Shuangpeng J, Xiang S, Jingxiang H, Shuyun L, Libo H, Peifu T, Qi Y, Quanyi G. 3D bioprinting of a biomimetic meniscal scaffold for application in tissue engineering. Bioact Mater 2020; 6:1711-1726. [PMID: 33313450 PMCID: PMC7711190 DOI: 10.1016/j.bioactmat.2020.11.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/13/2020] [Accepted: 11/19/2020] [Indexed: 12/22/2022] Open
Abstract
Appropriate biomimetic scaffolds created via 3D bioprinting are promising methods for treating damaged menisci. However, given the unique anatomical structure and complex stress environment of the meniscus, many studies have adopted various techniques to take full advantage of different materials, such as the printing combined with infusion, or electrospining, to chase the biomimetic meniscus, which makes the process complicated to some extent. Some researchers have tried to tackle the challenges only by 3D biopringting, while its alternative materials and models have been constrained. In this study, based on a multilayer biomimetic strategy, we optimized the preparation of meniscus-derived bioink, gelatin methacrylate (GelMA)/meniscal extracellular matrix (MECM), to take printability and cytocompatibility into account together. Subsequently, a customized 3D bioprinting system featuring a dual nozzle + multitemperature printing was used to integrate the advantages of polycaprolactone (PCL) and meniscal fibrocartilage chondrocytes (MFCs)-laden GelMA/MECM bioink to complete the biomimetic meniscal scaffold, which had the best biomimetic features in terms of morphology and components. Furthermore, cell viability, mechanics, biodegradation and tissue formation in vivo were performed to ensure that the scaffold had sufficient feasibility and functionality, thereby providing a reliable basis for its application in tissue engineering. We have optimized the preparation of meniscus-derived bioink with good printability and cytocompatibility. A customized printing system for biomimetic meniscus, the dual-nozzle + multitemperature printing system was developed. We have achieved multilayer meniscal biomimetic strategy, especially the best biomimetics of morphology and components. Focusing on application prospect, we designed a few experiments to verity the feasibility and functionality of the scaffold.
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Affiliation(s)
- Zhou Jian
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China.,Department of Joint Surgery, Peking University Ninth School of Clinical Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Tian Zhuang
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China.,Department of Joint Surgery, Peking University Ninth School of Clinical Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Tian Qinyu
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China.,School of Clinical Medicine, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Peng Liqing
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Li Kun
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Luo Xujiang
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Wang Diaodiao
- Department of Joint Surgery, Peking University Ninth School of Clinical Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Yang Zhen
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Jiang Shuangpeng
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Sui Xiang
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Huang Jingxiang
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Liu Shuyun
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Hao Libo
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Tang Peifu
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yao Qi
- Department of Joint Surgery, Peking University Ninth School of Clinical Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Guo Quanyi
- Medical School of Chinese PLA, Beijing, 100853, China.,Institute of Orthopedics, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
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Matos AM, Gonçalves AI, Rodrigues MT, Miranda MS, Haj AJE, Reis RL, Gomes ME. Remote triggering of TGF-β/Smad2/3 signaling in human adipose stem cells laden on magnetic scaffolds synergistically promotes tenogenic commitment. Acta Biomater 2020; 113:488-500. [PMID: 32652226 DOI: 10.1016/j.actbio.2020.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/29/2022]
Abstract
Injuries affecting load bearing tendon tissues are a significant clinical burden and efficient treatments are still unmet. Tackling tendon regeneration, tissue engineering strategies aim to develop functional substitutes that recreate native tendon milieu. Tendon mimetic scaffolds capable of remote magnetic responsiveness and functionalized magnetic nanoparticles (MNPs) targeting cellular mechanosensitive receptors are potential instructive tools to mediate mechanotransduction in guiding tenogenic responses. In this work, we combine magnetically responsive scaffolds and targeted Activin A type II receptor in human adipose stem cells (hASCs), under alternating magnetic field (AMF), to synergistically facilitate external control over signal transduction. The combination of remote triggering TGF-β/Smad2/3 using MNPs tagged hASCs, through magnetically actuated scaffolds, stimulates overall expression of tendon related genes and the deposition of tendon related proteins, in comparison to non-stimulated conditions. Moreover, the phosphorylation of Smad2/3 proteins and their nuclear co-localization was also more evident. Overall, biophysical stimuli resulting from magnetic scaffolds and magnetically triggered cells under AMF stimulation modulate the mechanosensing response of hASCs towards tenogenesis, holding therapeutic promise. STATEMENT OF SIGNIFICANCE: The concept of magnetically-assisted tissue engineering may assist the development of innovative solutions to treat tendon disorders upon remote control of biological processes as cell migration or differentiation. Herein, we originally combine a fibrous aligned superparamagnetic scaffold, based on a biodegradable polymeric blend of starch and poly-ɛ-caprolactone incorporating magnetic nanoparticles (MNPs), and human adipose stem cells (hASCs) labelled with MNPs functionalized with anti-activin receptor type IIA (ActRIIA). Constructs were stimulated using alternating magnetic field (AMF), to activate the ActRIIA and subsequent induction of TGF-β signaling, through Smad2/3 phosphorylation cascade, enhancing the expression of tendon-related markers. Altogether, these findings contribute with powerful bio-magnetic approaches to activate key tenogenic pathways, envisioning future translation of magnetic biomaterials into regenerative platforms for tendon repair.
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10
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Yang Q, Lei D, Huang S, Yang Y, Jiang C, Shi H, Chen W, Zhao Q, You Z, Ye X. A novel biodegradable external stent regulates vein graft remodeling via the Hippo-YAP and mTOR signaling pathways. Biomaterials 2020; 258:120254. [PMID: 32805499 DOI: 10.1016/j.biomaterials.2020.120254] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 07/15/2020] [Accepted: 07/20/2020] [Indexed: 01/10/2023]
Abstract
Coronary artery bypass graft (CABG) has been confirmed to effectively improve the prognosis of coronary artery disease, which is a major public health concern worldwide. As the most frequently used conduits in CABG, saphenous vein grafts have the disadvantage of being susceptible to restenosis due to intimal hyperplasia. To meet the urgent clinical demand, adopting external stents (eStents) and illuminating the potential mechanisms underlying their function are important for preventing vein graft failure. Here, using 4-axis printing technology, we fabricated a novel biodegradable and flexible braided eStent, which exerts excellent inhibitory effect on intimal hyperplasia. The stented grafts downregulate Yes-associated protein (YAP), indicating that the eStent regulates vein graft remodeling via the Hippo-YAP signaling pathway. Further, as a drug-delivery vehicle, a rapamycin (RM)-coated eStent was designed to amplify the inhibitory effect of eStent on intimal hyperplasia through the synergistic effects of the Hippo and mammalian target of rapamycin (mTOR) signaling pathways. Overall, this study uncovers the underlying mechanisms of eStent function and identifies a new therapeutic target for the prevention of vein graft restenosis.
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Affiliation(s)
- Qi Yang
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - Dong Lei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials (Donghua University), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Shixing Huang
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - Yang Yang
- Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200092, China
| | - Chenyu Jiang
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - Hongpeng Shi
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - Wenyi Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials (Donghua University), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Qiang Zhao
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China.
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials (Donghua University), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Xiaofeng Ye
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China.
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11
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Comparative study of enzyme-catalyzed biodegradation and crystallization behavior of PCL-PTEGMA amphiphilic hypergraft copolymers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Papadimitriou L, Manganas P, Ranella A, Stratakis E. Biofabrication for neural tissue engineering applications. Mater Today Bio 2020; 6:100043. [PMID: 32190832 PMCID: PMC7068131 DOI: 10.1016/j.mtbio.2020.100043] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 12/28/2022] Open
Abstract
Unlike other tissue types, the nervous tissue extends to a wide and complex environment that provides a plurality of different biochemical and topological stimuli, which in turn defines the advanced functions of that tissue. As a consequence of such complexity, the traditional transplantation therapeutic methods are quite ineffective; therefore, the restoration of peripheral and central nervous system injuries has been a continuous scientific challenge. Tissue engineering and regenerative medicine in the nervous system have provided new alternative medical approaches. These methods use external biomaterial supports, known as scaffolds, to create platforms for the cells to migrate to the injury site and repair the tissue. The challenge in neural tissue engineering (NTE) remains the fabrication of scaffolds with precisely controlled, tunable topography, biochemical cues, and surface energy, capable of directing and controlling the function of neuronal cells toward the recovery from neurological disorders and injuries. At the same time, it has been shown that NTE provides the potential to model neurological diseases in vitro, mainly via lab-on-a-chip systems, especially in cases for which it is difficult to obtain suitable animal models. As a consequence of the intense research activity in the field, a variety of synthetic approaches and 3D fabrication methods have been developed for the fabrication of NTE scaffolds, including soft lithography and self-assembly, as well as subtractive (top-down) and additive (bottom-up) manufacturing. This article aims at reviewing the existing research effort in the rapidly growing field related to the development of biomaterial scaffolds and lab-on-a-chip systems for NTE applications. Besides presenting recent advances achieved by NTE strategies, this work also delineates existing limitations and highlights emerging possibilities and future prospects in this field.
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Affiliation(s)
- L. Papadimitriou
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion, 71003, Greece
| | - P. Manganas
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion, 71003, Greece
| | - A. Ranella
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion, 71003, Greece
| | - E. Stratakis
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion, 71003, Greece
- Physics Department, University of Crete, Heraklion, 71003, Crete, Greece
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13
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Haider A, Haider S, Rao Kummara M, Kamal T, Alghyamah AAA, Jan Iftikhar F, Bano B, Khan N, Amjid Afridi M, Soo Han S, Alrahlah A, Khan R. Advances in the scaffolds fabrication techniques using biocompatible polymers and their biomedical application: A technical and statistical review. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.01.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Development of double porous poly (ε - caprolactone)/chitosan polymer as tissue engineering scaffold. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110257. [DOI: 10.1016/j.msec.2019.110257] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/24/2022]
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15
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Engelberg S, Netzer E, Assaraf YG, Livney YD. Selective eradication of human non-small cell lung cancer cells using aptamer-decorated nanoparticles harboring a cytotoxic drug cargo. Cell Death Dis 2019; 10:702. [PMID: 31541073 PMCID: PMC6754387 DOI: 10.1038/s41419-019-1870-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 07/16/2019] [Accepted: 07/18/2019] [Indexed: 01/06/2023]
Abstract
Targeted cancer therapy is currently the leading modality to enhance treatment selectivity and efficacy, as well as to minimize untoward toxicity to healthy tissues. Herein, we devised and studied nanoparticles (NPs) composed of the biocompatible block-copolymer PEG-PCL entrapping the hydrophobic chemotherapeutic drug paclitaxel (PTX), which are targeted to human non-small cell lung cancer (NSCLC) cells. To achieve selective NSCLC targeting, these NPs were decorated with single-stranded oligonucleotide-based S15 aptamers (S15-APTs), which we have recently shown to serve as efficient tumor cell targeting ligands. Prepared without using surfactants, these 15 nm PEG-PCL/PTX NPs entered NSCLC cells via clathrin-mediated endocytosis. These NPs demonstrated efficient encapsulation of PTX, high selectivity to- and potent eradication of human A549 NSCLC cells, with a remarkable half maximal inhibitory concentration (IC50) of 0.03 μM PTX. In contrast, very high IC50 values of 1.7, 4.2, 43, 87, and 980 µM PTX were obtained towards normal human bronchial epithelial BEAS2B, cervical carcinoma HeLa, colon adenocarcinoma CaCo-2, neonatal foreskin fibroblast FSE, and human embryonic kidney HEK-293 cells, respectively. These results demonstrate 2–5 orders of magnitude difference in the selective cytotoxicity towards NSCLCs, reflecting a potentially outstanding therapeutic window. Moreover, the dual utility of aptamer-decorated NPs for both drug stabilization and selective tumor targeting was studied by increasing APT concentrations during NP “decoration”. The optimal aptamer density on the surface of NPs for selective targeting, for high fluorescence diagnostic signal and for maintaining small particle size to enable endocytosis, was achieved by using 30 nM APTs during NP decoration. Collectively, our findings suggest that these APT-decorated NPs hold great preclinical promise in selective targeting and eradication of human NSCLC cells without harming normal tissues.
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Affiliation(s)
- Shira Engelberg
- The Laboratory of Biopolymers for Food and Health, Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, 3200000, Haifa, Israel
| | - Einat Netzer
- The Laboratory of Biopolymers for Food and Health, Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, 3200000, Haifa, Israel
| | - Yehuda G Assaraf
- The Fred Wyszkowski Cancer Research Laboratory, Department of Biology, Technion - Israel Institute of Technology, 3200000, Haifa, Israel.
| | - Yoav D Livney
- The Laboratory of Biopolymers for Food and Health, Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, 3200000, Haifa, Israel.
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16
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Using water to control electrospun Polycaprolactone fibre morphology for soft tissue engineering. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1890-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Suryavanshi A, Khanna K, Sindhu KR, Bellare J, Srivastava R. Development of bone screw using novel biodegradable composite orthopedic biomaterial: from material design to
in vitro
biomechanical and
in vivo
biocompatibility evaluation. Biomed Mater 2019; 14:045020. [DOI: 10.1088/1748-605x/ab16be] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Wissing TB, Bonito V, van Haaften EE, van Doeselaar M, Brugmans MMCP, Janssen HM, Bouten CVC, Smits AIPM. Macrophage-Driven Biomaterial Degradation Depends on Scaffold Microarchitecture. Front Bioeng Biotechnol 2019; 7:87. [PMID: 31080796 PMCID: PMC6497794 DOI: 10.3389/fbioe.2019.00087] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/08/2019] [Indexed: 12/19/2022] Open
Abstract
In situ tissue engineering is a technology in which non-cellular biomaterial scaffolds are implanted in order to induce local regeneration of replaced or damaged tissues. Degradable synthetic electrospun scaffolds are a versatile and promising class of biomaterials for various in situ tissue engineering applications, such as cardiovascular replacements. Functional in situ tissue regeneration depends on the balance between endogenous neo-tissue formation and scaffold degradation. Both these processes are driven by macrophages. Upon invasion into a scaffold, macrophages secrete reactive oxygen species (ROS) and hydrolytic enzymes, contributing to oxidative and enzymatic biomaterial degradation, respectively. This study aims to elucidate the effect of scaffold microarchitecture, i.e., μm-range fiber diameter and fiber alignment, on early macrophage-driven scaffold degradation. Electrospun poly-ε-caprolactone-bisurea (PCL-BU) scaffolds with either 2 or 6 μm (Ø) isotropic or anisotropic fibers were seeded with THP-1 derived human macrophages and cultured in vitro for 4 or 8 days. Our results revealed that macroph age-induced oxidative degradation in particular was dependent on scaffold microarchitecture, with the highest level of ROS-induced lipid peroxidation, NADPH oxidase gene expression and degradation in the 6 μm Ø anisotropic group. Whereas, biochemically polarized macrophages demonstrated a phenotype-specific degradative potential, the observed differences in macrophage degradative potential instigated by the scaffold microarchitecture could not be attributed to either distinct M1 or M2 polarization. This suggests that the scaffold microarchitecture uniquely affects macrophage-driven degradation. These findings emphasize the importance of considering the scaffold microarchitecture in the design of scaffolds for in situ tissue engineering applications and the tailoring of degradation kinetics thereof.
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Affiliation(s)
- Tamar B. Wissing
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, Netherlands
| | - Valentina Bonito
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, Netherlands
| | - Eline E. van Haaften
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, Netherlands
| | - Marina van Doeselaar
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | | | | | - Carlijn V. C. Bouten
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, Netherlands
| | - Anthal I. P. M. Smits
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, Netherlands
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Pazarçeviren AE, Evis Z, Keskin D, Tezcaner A. Resorbable PCEC/gelatin-bismuth doped bioglass-graphene oxide bilayer membranes for guided bone regeneration. Biomed Mater 2019; 14:035018. [DOI: 10.1088/1748-605x/ab007b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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20
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Espinoza SM, Patil HI, San Martin Martinez E, Casañas Pimentel R, Ige PP. Poly-ε-caprolactone (PCL), a promising polymer for pharmaceutical and biomedical applications: Focus on nanomedicine in cancer. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2018.1539990] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sergio Miguel Espinoza
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaria 694, Col. Irrigación, 11500 Ciudad de México
| | - Harshal Indrabhan Patil
- Department of Pharmaceutics, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra 425405, India
| | - Eduardo San Martin Martinez
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaria 694, Col. Irrigación, 11500 Ciudad de México
| | - Rocio Casañas Pimentel
- CONACYT-Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaria 694, Col. Irrigación, 11500 Ciudad de México
| | - Pradum Pundlikrao Ige
- Department of Pharmaceutics, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra 425405, India
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21
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Malikmammadov E, Tanir TE, Kiziltay A, Hasirci V, Hasirci N. PCL and PCL-based materials in biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:863-893. [PMID: 29053081 DOI: 10.1080/09205063.2017.1394711] [Citation(s) in RCA: 391] [Impact Index Per Article: 55.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Biodegradable polymers have met with an increasing demand in medical usage over the last decades. One of such polymers is poly(ε-caprolactone) (PCL), which is a polyester that has been widely used in tissue engineering field for its availability, relatively inexpensive price and suitability for modification. Its chemical and biological properties, physicochemical state, degradability and mechanical strength can be adjusted, and therefore, it can be used under harsh mechanical, physical and chemical conditions without significant loss of its properties. Degradation time of PCL is quite long, thus it is used mainly in the replacement of hard tissues in the body where healing also takes an extended period of time. It is also used at load-bearing tissues of the body by enhancing its stiffness. However, due to its tailorability, use of PCL is not restricted to one type of tissue and it can be extended to engineering of soft tissues by decreasing its molecular weight and degradation time. This review outlines the basic properties of PCL, its composites, blends and copolymers. We report on various techniques for the production of different forms, and provide examples of medical applications such as tissue engineering and drug delivery systems covering the studies performed in the last decades.
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Affiliation(s)
- Elbay Malikmammadov
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,b Graduate Department of Micro and Nanotechnology, Graduate School of Natural and Applied Sciences , Middle East Technical University , Ankara , Turkey
| | - Tugba Endogan Tanir
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,c Central Laboratory , Middle East Technical University , Ankara , Turkey
| | - Aysel Kiziltay
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,c Central Laboratory , Middle East Technical University , Ankara , Turkey
| | - Vasif Hasirci
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,b Graduate Department of Micro and Nanotechnology, Graduate School of Natural and Applied Sciences , Middle East Technical University , Ankara , Turkey.,d Department of Biological Sciences , Middle East Technical University , Ankara , Turkey
| | - Nesrin Hasirci
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,b Graduate Department of Micro and Nanotechnology, Graduate School of Natural and Applied Sciences , Middle East Technical University , Ankara , Turkey.,e Department of Chemistry , Middle East Technical University , Ankara , Turkey
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22
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Malikmammadov E, Tanir TE, Kiziltay A, Hasirci V, Hasirci N. PCL-TCP wet spun scaffolds carrying antibiotic-loaded microspheres for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:805-824. [DOI: 10.1080/09205063.2017.1354671] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Elbay Malikmammadov
- Graduate School of Natural and Applied Sciences, Department of Micro and Nanotechnology, Middle East Technical University, Ankara, Turkey
- BIOMATEN, Middle East Technical University Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
| | - Tugba Endogan Tanir
- BIOMATEN, Middle East Technical University Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
- Central Laboratory, Middle East Technical University, Ankara, Turkey
| | - Aysel Kiziltay
- BIOMATEN, Middle East Technical University Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
- Central Laboratory, Middle East Technical University, Ankara, Turkey
| | - Vasif Hasirci
- Graduate School of Natural and Applied Sciences, Department of Micro and Nanotechnology, Middle East Technical University, Ankara, Turkey
- BIOMATEN, Middle East Technical University Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
- Faculty of Arts and Sciences, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Nesrin Hasirci
- Graduate School of Natural and Applied Sciences, Department of Micro and Nanotechnology, Middle East Technical University, Ankara, Turkey
- BIOMATEN, Middle East Technical University Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
- Faculty of Arts and Sciences, Department of Chemistry, Middle East Technical University, Ankara, Turkey
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Buyuksungur S, Endogan Tanir T, Buyuksungur A, Bektas EI, Torun Kose G, Yucel D, Beyzadeoglu T, Cetinkaya E, Yenigun C, Tönük E, Hasirci V, Hasirci N. 3D printed poly(ε-caprolactone) scaffolds modified with hydroxyapatite and poly(propylene fumarate) and their effects on the healing of rabbit femur defects. Biomater Sci 2017; 5:2144-2158. [DOI: 10.1039/c7bm00514h] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
3D printed, BMSC seeded PCL/HAp/PPF scaffolds presented significant regeneration with high mechanical properties similar to that of healthy bone.
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Khan I, Ray Dutta J, Ganesan R. Lactobacillus sps. lipase mediated poly (ε-caprolactone) degradation. Int J Biol Macromol 2016; 95:126-131. [PMID: 27865950 DOI: 10.1016/j.ijbiomac.2016.11.040] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/08/2016] [Accepted: 11/09/2016] [Indexed: 11/28/2022]
Abstract
Polymer degradation through lipase appears to be an enthralling alternative to bulk chemical routes. Poly (ε-caprolactone) (PCL) is an artificial polyester that can be degraded by microbes and enzymes like lipases and esterases. The environmental degradation of PCL is dependent on the activity of bacteria that characterization techniques such as thermogravimetric analysis, differential thermal are widely present in the ecosystem. In this study, three different lipases derived from Lactobacillus brevis, Lactobacillus plantarum and their co-culture have been utilized to explore their efficiency towards PCL enzymatic degradation. The effect of parameters such as enzyme loading and degradation time has been explored to understand the efficiency of the enzymes used in this study. Various analysis, scanning electron microscopy and Fourier transform infrared spectroscopy have been employed to study the enzymatic degradation and its possible mechanistic insight.
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Affiliation(s)
- Imran Khan
- Department of Biological Sciences, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, Telangana, India
| | - Jayati Ray Dutta
- Department of Biological Sciences, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, Telangana, India.
| | - Ramakrishnan Ganesan
- Department of Chemistry, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, Telangana, India.
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Pruksakorn D, Teeyakasem P, Klangjorhor J, Chaiyawat P, Settakorn J, Diskul-Na-Ayudthaya P, Chokchaichamnankit D, Pothacharoen P, Srisomsap C. Overexpression of KH-type splicing regulatory protein regulates proliferation, migration, and implantation ability of osteosarcoma. Int J Oncol 2016; 49:903-12. [PMID: 27573585 PMCID: PMC4948955 DOI: 10.3892/ijo.2016.3601] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 06/15/2016] [Indexed: 12/16/2022] Open
Abstract
Osteosarcoma is a common malignant bone tumor in children and adolescents. The current 5-year survival rate is ~60% and that seems to be reaching a plateau. In order to improve treatment outcomes of osteosarcoma, a better understanding of tumorigenesis and underlying molecular mechanisms is required for searching out possible new treatment targets. This study aimed to identify the potential proteins involving the pathogenesis of osteosarcoma using a proteomics approach. Proteins extracted from primary cell culture of osteosarcoma (n=7) and osteoblasts of cancellous bone (n=7) were studied. Using 2-DE based proteomics and LC-MS/MS analysis, we successfully determined seven differentially expressed protein spots. Four upregulated proteins and three downregulated proteins were observed in this study in which KH-type splicing regulatory protein (KSRP) was selected for further exploration. KSRP was significantly upregulated in osteosarcoma cells compared to osteoblasts using western blot assay. In addition, immunohistochemistry demonstrated that KSRP was also highly expressed in osteosarcoma tissue of independent cases from the experimental group. More importantly, KSRP silencing of osteosarcoma cell lines significantly decreased cell proliferation, migration ability, as well as implantation and growth ability in chick chorioallantoic membrane assay. Taken together, these findings demonstrate, that KSRP plays important roles in regulatory controls of osteosarcoma pathogenesis and serves as a potentially therapeutic target of osteosarcoma.
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Affiliation(s)
- Dumnoensun Pruksakorn
- Department of Orthopedics, Faculty of Medicine, Orthopedic Laboratory and Research Netting Center (OLARN Center), Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pimpisa Teeyakasem
- Department of Orthopedics, Faculty of Medicine, Orthopedic Laboratory and Research Netting Center (OLARN Center), Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jeerawan Klangjorhor
- Department of Orthopedics, Faculty of Medicine, Orthopedic Laboratory and Research Netting Center (OLARN Center), Chiang Mai University, Chiang Mai 50200, Thailand
| | - Parunya Chaiyawat
- Department of Orthopedics, Faculty of Medicine, Orthopedic Laboratory and Research Netting Center (OLARN Center), Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jongkolnee Settakorn
- Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | | | | | - Peraphan Pothacharoen
- Thailand Excellence Center for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
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Brugmans MM, Soekhradj-Soechit RS, van Geemen D, Cox M, Bouten CV, Baaijens FP, Driessen-Mol A. Superior Tissue Evolution in Slow-Degrading Scaffolds for Valvular Tissue Engineering. Tissue Eng Part A 2016; 22:123-32. [DOI: 10.1089/ten.tea.2015.0203] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Marieke M.C.P. Brugmans
- Xeltis B.V., Eindhoven, The Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | | | - Daphne van Geemen
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | | | - Carlijn V.C. Bouten
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Frank P.T. Baaijens
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Anita Driessen-Mol
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
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27
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Villarreal-Gómez LJ, Cornejo-Bravo JM, Vera-Graziano R, Grande D. Electrospinning as a powerful technique for biomedical applications: a critically selected survey. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 27:157-76. [DOI: 10.1080/09205063.2015.1116885] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Brugmans M, Sӧntjens S, Cox M, Nandakumar A, Bosman A, Mes T, Janssen H, Bouten C, Baaijens F, Driessen-Mol A. Hydrolytic and oxidative degradation of electrospun supramolecular biomaterials: In vitro degradation pathways. Acta Biomater 2015; 27:21-31. [PMID: 26316031 DOI: 10.1016/j.actbio.2015.08.034] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 08/12/2015] [Accepted: 08/22/2015] [Indexed: 12/12/2022]
Abstract
The emerging field of in situ tissue engineering (TE) of load bearing tissues places high demands on the implanted scaffolds, as these scaffolds should provide mechanical stability immediately upon implantation. The new class of synthetic supramolecular biomaterial polymers, which contain non-covalent interactions between the polymer chains, thereby forming complex 3D structures by self assembly. Here, we have aimed to map the degradation characteristics of promising (supramolecular) materials, by using a combination of in vitro tests. The selected biomaterials were all polycaprolactones (PCLs), either conventional and unmodified PCL, or PCL with supramolecular hydrogen bonding moieties (either 2-ureido-[1H]-pyrimidin-4-one or bis-urea units) incorporated into the backbone. As these materials are elastomeric, they are suitable candidates for cardiovascular TE applications. Electrospun scaffold strips of these materials were incubated with solutions containing enzymes that catalyze hydrolysis, or solutions containing oxidative species. At several time points, chemical, morphological, and mechanical properties were investigated. It was demonstrated that conventional and supramolecular PCL-based polymers respond differently to enzyme-accelerated hydrolytic or oxidative degradation, depending on the morphological and chemical composition of the material. Conventional PCL is more prone to hydrolytic enzymatic degradation as compared to the investigated supramolecular materials, while, in contrast, the latter materials are more susceptible to oxidative degradation. Given the observed degradation pathways of the examined materials, we are able to tailor degradation characteristics by combining selected PCL backbones with additional supramolecular moieties. The presented combination of in vitro test methods can be employed to screen, limit, and select biomaterials for pre-clinical in vivo studies targeted to different clinical applications.
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Manavitehrani I, Fathi A, Wang Y, Maitz PK, Dehghani F. Reinforced Poly(Propylene Carbonate) Composite with Enhanced and Tunable Characteristics, an Alternative for Poly(lactic Acid). ACS APPLIED MATERIALS & INTERFACES 2015; 7:22421-22430. [PMID: 26376751 DOI: 10.1021/acsami.5b06407] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The acidic nature of the degradation products of polyesters often leads to unpredictable clinical complications, such as necrosis of host tissues and massive immune cell invasions. In this study, poly(propylene carbonate) (PPC) and starch composite is introduced with superior characteristics as an alternative to polyester-based polymers. The degradation products of PPC-starch composites are mainly carbon dioxide and water; hence, the associated risks to the acidic degradation of polyesters are minimized. Moreover, the compression strength of PPC-starch composites can be tuned over the range of 0.2±0.03 MPa to 33.9±1.51 MPa by changing the starch contents of composites to address different clinical needs. More importantly, the addition of 50 wt % starch enhances the thermal processing capacity of the composites by elevating their decomposition temperature from 245 to 276 °C. Therefore, thermal processing methods, such as extrusion and hot melt compression methods can be used to generate different shapes and structures from PPC-starch composites. We also demonstrated the cytocompatibility and biocompatibility of these composites by conducting in vitro and in vivo tests. For instance, the numbers of osteoblast cells were increased 2.5 fold after 7 days post culture. In addition, PPC composites in subcutaneous mice model resulted in mild inflammatory responses (e.g., the formation of fibrotic tissue) that were diminished from two to 4 weeks postimplantation. The long-term in vivo biodegradation of PPC composites are compared with poly(lactic acid) (PLA). The histochemical analysis revealed that after 8 weeks, the biodegradation of PLA leads to massive immune cell infusion and inflammation at the site, whereas the PPC composites are well-tolerated in vivo. All these results underline the favorable properties of PPC-starch composites as a benign biodegradable biomaterial for fabrication of biomedical implants.
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Affiliation(s)
- Iman Manavitehrani
- School of Chemical and Biomolecular Engineering, University of Sydney , Sydney, New South Wales 2006, Australia
| | - Ali Fathi
- School of Chemical and Biomolecular Engineering, University of Sydney , Sydney, New South Wales 2006, Australia
| | - Yiwei Wang
- Burns Research Group, ANZAC Research Institute, University of Sydney , Concord, New South Wales 2139, Australia
| | - Peter K Maitz
- Burns Research Group, ANZAC Research Institute, University of Sydney , Concord, New South Wales 2139, Australia
- Burns and Reconstructive Surgery Unit, Concord Repatriation General Hospital , Concord, New South Wales 2139, Australia
| | - Fariba Dehghani
- School of Chemical and Biomolecular Engineering, University of Sydney , Sydney, New South Wales 2006, Australia
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de Jonge N, Foolen J, Brugmans MCP, Söntjens SHM, Baaijens FPT, Bouten CVC. Degree of scaffold degradation influences collagen (re)orientation in engineered tissues. Tissue Eng Part A 2014; 20:1747-57. [PMID: 24372199 DOI: 10.1089/ten.tea.2013.0517] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Tissue engineering provides a promising tool for creating load-bearing cardiovascular tissues. Ideally, the neotissue produced by cells possesses native strength and anisotropy. By providing contact-guiding cues with microfibers, scaffold directionality can guide tissue organization. However, scaffolds transiently degrade, which may induce undesired tissue remodeling in response to applied strain. We hypothesize that in newly formed tissues, the collagen matrix does not yet provide contact guidance to the cells, and collagen orientation is altered via strain-induced remodeling. To test this hypothesis, we studied the influence of lipase-induced scaffold degradation on collagen (re)orientation at static constraint. Myofibroblasts were cultured in electrospun PCL-U4U anisotropic microfiber scaffolds, which were statically constrained perpendicular to the scaffold fibers. During 2 weeks of culture, neotissue formation aligned in the direction of the scaffold fibers, after which scaffolds were degraded to different degrees (12%, 27%, and 79% reduction in scaffold weight) and collagen (re)orientation was studied after one additional week of culturing. High degrees of scaffold degradation (79%) were associated with remodeling of the collagen toward the constraint direction, while collagen organization was maintained at low degrees of scaffold degradation. These results highlight the importance of slow scaffold degradation when aiming at maintaining collagen orientation.
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Affiliation(s)
- Nicky de Jonge
- 1 Department of Biomedical Engineering, Eindhoven University of Technology , Eindhoven, The Netherlands
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Thiele J, Ma Y, Bruekers SMC, Ma S, Huck WTS. 25th anniversary article: Designer hydrogels for cell cultures: a materials selection guide. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:125-47. [PMID: 24227691 DOI: 10.1002/adma.201302958] [Citation(s) in RCA: 290] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 07/31/2013] [Indexed: 05/25/2023]
Abstract
Cell culturing, whether for tissue engineering or cell biology studies, always involves placing cells in a non-natural environment and no material currently exist that can mimic the entire complexity of natural tissues and variety of cell-matrix interactions that is found in vivo. Here, we review the vast range of hydrogels, composed of natural or synthetic polymers that provide a route to tailored microenvironments.
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Affiliation(s)
- Julian Thiele
- Institute for Molecules and Materials, Heyendaalseweg 135, 6525, AJ, Nijmegen, The Netherlands
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Requicha JF, Viegas CA, Muñoz F, Reis RL, Gomes ME. Periodontal tissue engineering strategies based on nonoral stem cells. Anat Rec (Hoboken) 2013; 297:6-15. [PMID: 24293355 DOI: 10.1002/ar.22797] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 09/13/2013] [Indexed: 01/09/2023]
Abstract
Periodontal disease is an inflammatory disease which constitutes an important health problem in humans due to its enormous prevalence and life threatening implications on systemic health. Routine standard periodontal treatments include gingival flaps, root planning, application of growth/differentiation factors or filler materials and guided tissue regeneration. However, these treatments have come short on achieving regeneration ad integrum of the periodontium, mainly due to the presence of tissues from different embryonic origins and their complex interactions along the regenerative process. Tissue engineering (TE) aims to regenerate damaged tissue by providing the repair site with a suitable scaffold seeded with sufficient undifferentiated cells and, thus, constitutes a valuable alternative to current therapies for the treatment of periodontal defects. Stem cells from oral and dental origin are known to have potential to regenerate these tissues. Nevertheless, harvesting cells from these sites implies a significant local tissue morbidity and low cell yield, as compared to other anatomical sources of adult multipotent stem cells. This manuscript reviews studies describing the use of non-oral stem cells in tissue engineering strategies, highlighting the importance and potential of these alternative stem cells sources in the development of advanced therapies for periodontal regeneration.
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Affiliation(s)
- João Filipe Requicha
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Guimarães, Portugal; Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga/Guimarães, Portugal
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Requicha JF, Viegas CA, Hede S, Leonor IB, Reis RL, Gomes ME. Design and characterization of a biodegradable double-layer scaffold aimed at periodontal tissue-engineering applications. J Tissue Eng Regen Med 2013; 10:392-403. [DOI: 10.1002/term.1816] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 07/24/2013] [Accepted: 07/24/2013] [Indexed: 12/21/2022]
Affiliation(s)
- João F. Requicha
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
- Department of Veterinary Sciences; University of Trás-os-Montes e Alto Douro; Vila Real Portugal
| | - Carlos A. Viegas
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
- Department of Veterinary Sciences; University of Trás-os-Montes e Alto Douro; Vila Real Portugal
| | - Shantesh Hede
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
| | - Isabel B. Leonor
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
| | - Rui L. Reis
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
| | - Manuela E. Gomes
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
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Mountziaris PM, Dennis Lehman E, Mountziaris I, Sing DC, Kasper FK, Mikos AG. Effect of temporally patterned TNF-α delivery on in vitro osteogenic differentiation of mesenchymal stem cells cultured on biodegradable polymer scaffolds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 24:1794-813. [PMID: 23746285 DOI: 10.1080/09205063.2013.803455] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recent insight into the critical role of pro-inflammatory cytokines, particularly tumor necrosis factor-α (TNF-α), in bone regeneration has heralded a new direction in the design of tissue engineering constructs. Previous studies have demonstrated that continuous delivery of 50 ng/ml TNF-α to mesenchymal stem cells (MSCs) cultured on three-dimensional (3D) biodegradable electrospun poly(ϵ-caprolactone) (PCL) microfiber meshes stimulates mineralized matrix deposition, a marker of osteogenic differentiation. Since TNF-α exhibits a biphasic pattern of expression following bone fracture in vivo, this study aimed to investigate the effects of temporal patterns of TNF-α delivery on in vitro osteogenic differentiation of MSCs cultured on 3D electrospun PCL scaffolds. MSCs were cultured for 16 days and exposed to continuous, early, intermediate, or late TNF-α delivery. To further elucidate the effects of TNF-α on osteogenic differentiation, the study design included MSCs precultured both in the presence and absence of typically required osteogenic supplement dexamethasone. Mineralized matrix deposition was not observed in constructs with dexamethasone-naïve MSCs, suggesting that TNF-α is not sufficient to trigger in vitro osteogenic differentiation of MSCs. For MSCs precultured with dexamethasone, TNF-α suppressed alkaline phosphatase activity, an early marker of osteogenic differentiation, and stimulated mineralized matrix deposition, a late stage marker of MSC osteogenic differentiation. By elucidating the impact of temporal variations in TNF-α delivery on MSC osteogenic differentiation, our results offer insight into the regenerative mechanism of TNF-α and provide the design parameters for a novel tissue engineering strategy that rationally controls TNF-α signaling to stimulate bone regeneration.
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Affiliation(s)
- Paschalia M Mountziaris
- a Department of Bioengineering , Rice University , P.O. Box 1892, MS 142 , Houston , TX , 77251-1892 , USA
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Gardel LS, Correia-Gomes C, Serra LA, Gomes ME, Reis RL. A novel bidirectional continuous perfusion bioreactor for the culture of large-sized bone tissue-engineered constructs. J Biomed Mater Res B Appl Biomater 2013; 101:1377-86. [DOI: 10.1002/jbm.b.32955] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 02/11/2013] [Accepted: 02/25/2013] [Indexed: 12/21/2022]
Affiliation(s)
- Leandro S. Gardel
- 3B's Research Groups: Biomaterials, Biodegradables and Biomimetics; Department of Polymer Engineering; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Taipas Guimarães Portugal
- ICVS/3B's PT Government Associated Lab; AvePark 4806-909 Braga Portugal
- Department of Clinic Veterinary; ICBAS-University of Porto; Porto Portugal
| | | | - Luís A. Serra
- Department of Ortophysiatric; General Hospital Santo António; Porto Portugal
| | - Manuela E. Gomes
- 3B's Research Groups: Biomaterials, Biodegradables and Biomimetics; Department of Polymer Engineering; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Taipas Guimarães Portugal
- ICVS/3B's PT Government Associated Lab; AvePark 4806-909 Braga Portugal
| | - Rui L. Reis
- 3B's Research Groups: Biomaterials, Biodegradables and Biomimetics; Department of Polymer Engineering; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Taipas Guimarães Portugal
- ICVS/3B's PT Government Associated Lab; AvePark 4806-909 Braga Portugal
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Santos TC, Morton TJ, Moritz M, Pfeifer S, Reise K, Marques AP, Castro AG, Reis RL, van Griensven M. Vascular Endothelial Growth Factor and Fibroblast Growth Factor-2 Incorporation in Starch-Based Bone Tissue-Engineered Constructs Promote theIn VivoExpression of Neovascularization Mediators. Tissue Eng Part A 2013; 19:834-48. [DOI: 10.1089/ten.tea.2010.0741] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Tírcia C. Santos
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
- ICVS-3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Tatjana J. Morton
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Martina Moritz
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Sabine Pfeifer
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Kathrin Reise
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Alexandra P. Marques
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
- ICVS-3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - António G. Castro
- ICVS-3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
| | - Rui L. Reis
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
- ICVS-3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Martijn van Griensven
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Department of Trauma Surgery, Institute for Experimental Trauma Surgery, Technical University Munich, Munich, Germany
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Thibault RA, Mikos AG, Kasper FK. Scaffold/Extracellular matrix hybrid constructs for bone-tissue engineering. Adv Healthc Mater 2013. [PMID: 23184883 DOI: 10.1002/adhm.201200209] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The limited natural ability of the body to fully repair large bone defects often necessitates the implantation of a replacement material to promote healing. While the current clinical strategies to address such bone defects generally carry associated limitations, bone-tissue engineering approaches seek to minimize any adverse effects and facilitate complete regeneration of the lost tissue. Of particular interest are hybrid constructs that incorporate multiple components found within the native bone matrix to enhance the osteogenicity of biocompatible materials, which might otherwise be non-osteogenic. This Progress Report will focus on such hybrid constructs that incorporate multiple components from native bone matrix for bone-tissue engineering and will highlight the synthesis and characterization of the hybrid constructs, cellular attachment and proliferation within the constructs, in vitro osteogenicity of the constructs, and the biological response to in vivo implantation of the constructs at ectopic and orthotopic sites.
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Sezer UA, Aksoy EA, Hasirci V, Hasirci N. Poly(ε-caprolactone) composites containing gentamicin-loaded β-tricalcium phosphate/gelatin microspheres as bone tissue supports. J Appl Polym Sci 2012. [DOI: 10.1002/app.37770] [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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Salerno A, Di Maio E, Iannace S, Netti PA. Tuning the microstructure and biodegradation of three-phase scaffolds for bone regeneration made of PCL, Zein, and HA. J CELL PLAST 2011. [DOI: 10.1177/0021955x11404832] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study has been the design of novel multi-phase porous scaffolds with bi-modal pore size distributions and controlled biodegradation rate for bone tissue engineering (bTE), via a gas foaming—leaching approach. Poly( ε-caprolactone) (PCL) has been melt mixed with thermoplastic zein (TZ) and hydroxyapatite particle, to prepare multi-phase PCL—TZ and PCL—TZ—HA composites suitable to be further processed for the fabrication of 3D porous scaffolds. To this aim, these systems have been gas foamed by using CO2 as blowing agent and, subsequently, soaked in H2O to leach out the plasticizer from the TZ. This combined process allows the formation of an interpenetrated micro- and macro-porosity network within the samples. The effect of the different formulations on the micro-structural properties and in vitro biodegradation of the scaffolds has been investigated, and the results correlated to the mechanisms involved in the formation of the bi-modal pore structure. Results demonstrated that the multi-phase nature of the biomaterials prepared as well as their composition significantly affect the micro-structural properties and biodegradation rate of the scaffolds. The optimal selection of the processing conditions may allow for the design of multi-phase 3D porous scaffolds suitable for bTE.
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Affiliation(s)
- A. Salerno
- Interdisciplinary Research Centre on Biomaterials (CRIB), Italian Institute of Technology (T), University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy; Institute of Composite and Biomedical Materials, National Research Council (IMCB-CNR), Piazz.le Tecchio 80, 80125, Naples, Italy,
| | - E. Di Maio
- Department of Materials and Production Engineering, University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy
| | - S. Iannace
- Institute of Composite and Biomedical Materials, National Research Council (IMCB-CNR), Piazz.le Tecchio 80, 80125, Naples, Italy
| | - PA Netti
- Interdisciplinary Research Centre on Biomaterials (CRIB), Italian Institute of Technology (T), University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy; Department of Materials and Production Engineering, University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy
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Rada T, Santos TC, Marques AP, Correlo VM, Frias AM, Castro AG, Neves NM, Gomes ME, Reis RL. Osteogenic differentiation of two distinct subpopulations of human adipose-derived stem cells: an in vitro and in vivo study. J Tissue Eng Regen Med 2011; 6:1-11. [PMID: 21294275 DOI: 10.1002/term.388] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Accepted: 10/28/2010] [Indexed: 01/23/2023]
Abstract
The first stem cells considered for the reconstruction of bone were bone marrow mesenchymal stem cells (BMSCs). Subsequently, cells with similar marker expression panel and differentiation potential were found in new sources of cells, such as adipose tissue. This source of stem cells has a promising future in tissue-engineering applications, considering the abundance of this tissue in the human body, the easy harvesting and the high number of stem cells that are available from such a small amount of tissue. The isolation of the adipose stem cells is generally performed by means of enzymatic digestion of the tissues, followed by a natural selection of the stem cells based on their capacity to adhere to the culture flasks, leading to a quite heterogeneous population. This constitutes a major drawback for the use of these cells, since the heterogeneity of the cell culture obtained can compromise their proliferation and differentiation potential. In the present study we have analysed the in vitro and in vivo behaviour of two selected subpopulations with high osteogenic potential. For this purpose, ASCs(CD29+) and ASCs (STRO-1+)subpopulations were isolated and in vitro cultured onto a biodegradable polymeric scaffold, using osteogenic medium, before implantation in a nude mice model. The biodegradable polymeric scaffold used is a fibre-mesh structure based on a blend of starch and polycaprolatone (SPCL) that has been successfully used in several bone tissue-engineering studies. The implanted ASCs-scaffold constructs promoted the formation of new bone tissue in nude mice. However, the results obtained show differences in the behaviour of the two ASCs subpopulations under study, particularly regarding their potential to differentiate into the osteogenic lineage, and allowed the indentification of ASCs (STRO-1+) as the best subpopulation for bone tissue-engineering applications.
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Affiliation(s)
- T Rada
- 3Bs Research Group-Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, AvePark, Guimarães, Portugal
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Martins AM, Saraf A, Sousa RA, Alves CM, Mikos AG, Kasper FK, Reis RL. Combination of enzymes and flow perfusion conditions improves osteogenic differentiation of bone marrow stromal cells cultured upon starch/poly(epsilon-caprolactone) fiber meshes. J Biomed Mater Res A 2010; 94:1061-9. [PMID: 20694973 DOI: 10.1002/jbm.a.32785] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Previous studies have shown that alpha-amylase and lipase are capable of enhancing the degradation of fiber meshes blends of starch and poly(epsilon-caprolactone) (SPCL) under dynamic conditions, and consequently to promote the proliferation and osteogenic differentiation of bone marrow stromal cells (MSCs). This study investigated the effect of flow perfusion bioreactor culture in combination with enzymes on the osteogenic differentiation of MSCs. SPCL fiber meshes were seeded with MSCs and cultured with osteogenic medium supplemented with alpha-amylase, lipase, or a combination of the two for 8 or 16 days using static or flow conditions. Lipase and its combination with alpha-amylase enhanced cell proliferation after 16 days. In addition, the flow perfusion culture enhanced the infiltration of cells and facilitated greater distribution of extracellular matrix (ECM) throughout the scaffolds in the presence/absence of enzymes. A significant amount of calcium was detected after 16 days in all groups cultured in flow conditions compared with static cultures. Nevertheless, when alpha-amylase and lipase were included in the flow perfusion cultures, the calcium content was 379 +/- 30 microg/scaffold after as few as 8 days. The highest calcium content (1271 +/- 32 microg/scaffold) was obtained for SPCL/cell constructs cultured for 16 days in the presence of lipase and flow. Furthermore, von Kossa staining and tetracycline fluorescence of histological sections demonstrated mineral deposition within the scaffolds for all groups cultured for 16 days under flow. However, all the data corroborate that lipase coupled with flow perfusion conditions improve the osteogenic differentiation of MSCs and enhance ECM mineralization.
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Affiliation(s)
- Ana M Martins
- University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
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López-Pérez PM, da Silva RM, Sousa RA, Pashkuleva I, Reis RL. Plasma-induced polymerization as a tool for surface functionalization of polymer scaffolds for bone tissue engineering: an in vitro study. Acta Biomater 2010; 6:3704-12. [PMID: 20226283 DOI: 10.1016/j.actbio.2010.03.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Revised: 02/16/2010] [Accepted: 03/03/2010] [Indexed: 10/19/2022]
Abstract
A commonly applied strategy in the field of tissue engineering (TE) is the use of temporary three-dimensional scaffolds for supporting and guiding tissue formation in various in vitro strategies and in vivo regeneration approaches. The interactions of these scaffolds with highly sensitive bioentities such as living cells and tissues primarily occur through the material surface. Hence, surface chemistry and topological features have principal roles in coordinating biological events at the molecular, cellular and tissue levels on timescales ranging from seconds to weeks. However, tailoring the surface properties of scaffolds with a complex shape and architecture remains a challenge in materials science. Commonly applied wet chemical treatments often involve the use of toxic solvents whose oddments in the construct could be fatal in the subsequent application. Aiming to shorten the culture time in vitro (i.e. prior the implantation of the construct), in this work we propose a modification of previously described bone TE scaffolds made from a blend of starch with polycaprolactone (SPCL). The modification method involves surface grafting of sulfonic or phosphonic groups via plasma-induced polymerization of vinyl sulfonic and vinyl phosphonic acid, respectively. We demonstrate herein that the presence of these anionic functional groups can modulate cell adhesion mediated through the adsorbed proteins (from the culture medium). Under the conditions studied, both vitronectin adsorption and osteoblast proliferation and viability increased in the order SPCL << sulfonic-grafted SPCL < phosphonic-grafted SPCL. The results revealed that plasma-induced polymerization is an excellent alternative route, when compared to the commonly used wet chemical treatments, for the surface functionalization of biodevices with complex shape and porosity.
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Pashkuleva I, Marques AP, Vaz F, Reis RL. Surface modification of starch based biomaterials by oxygen plasma or UV-irradiation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:21-32. [PMID: 19639265 DOI: 10.1007/s10856-009-3831-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2008] [Accepted: 07/16/2009] [Indexed: 05/28/2023]
Abstract
Radiation is widely used in biomaterials science for surface modification and sterilization. Herein, we describe the use of plasma and UV-irradiation to improve the biocompatibility of different starch-based blends in terms of cell adhesion and proliferation. Physical and chemical changes, introduced by the used methods, were evaluated by complementary techniques for surface analysis such as scanning electron microscopy, atomic force microscopy, contact angle analysis and X-ray photoelectron spectroscopy. The effect of the changed surface properties on the adhesion of osteoblast-like cells was studied by a direct contact assay. Generally, both treatments resulted in higher number of cells adhered to the modified surfaces. The importance of the improved biocompatibility resulting from the irradiation methods is further supported by the knowledge that both UV and plasma treatments can be used as cost-effective methods for sterilization of biomedical materials and devices.
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Affiliation(s)
- Iva Pashkuleva
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, AvePark, Taipas, Guimarães, Portugal.
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Martins AM, Alves CM, Kurtis Kasper F, Mikos AG, Reis RL. Responsive and in situ-forming chitosan scaffolds for bone tissue engineering applications: an overview of the last decade. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b916259n] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Dose effect of tumor necrosis factor-alpha on in vitro osteogenic differentiation of mesenchymal stem cells on biodegradable polymeric microfiber scaffolds. Biomaterials 2009; 31:1666-75. [PMID: 19963268 DOI: 10.1016/j.biomaterials.2009.11.058] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Accepted: 11/18/2009] [Indexed: 02/08/2023]
Abstract
This study presents a first step in the development of a bone tissue engineering strategy to trigger enhanced osteogenesis by modulating inflammation. This work focused on characterizing the effects of the concentration of a pro-inflammatory cytokine, tumor necrosis factor alpha (TNF-alpha), on osteogenic differentiation of mesenchymal stem cells (MSCs) grown in a 3D culture system. MSC osteogenic differentiation is typically achieved in vitro through a combination of osteogenic supplements that include the anti-inflammatory corticosteroid dexamethasone. Although simple, the use of dexamethasone is not clinically realistic, and also hampers in vitro studies of the role of inflammatory mediators in wound healing. In this study, MSCs were pre-treated with dexamethasone to induce osteogenic differentiation, and then cultured in biodegradable electrospun poly(epsilon-caprolactone) (PCL) scaffolds, which supported continued MSC osteogenic differentiation in the absence of dexamethasone. Continuous delivery of 0.1 ng/mL of recombinant rat TNF-alpha suppressed osteogenic differentiation of rat MSCs over 16 days, which was likely the result of residual dexamethasone antagonizing TNF-alpha signaling. Continuous delivery of a higher dose, 5 ng/mL TNF-alpha, stimulated osteogenic differentiation for a few days, and 50 ng/mL TNF-alpha resulted in significant mineralized matrix deposition over the course of the study. These findings suggest that the pro-inflammatory cytokine TNF-alpha stimulates osteogenic differentiation of MSCs, an effect that can be blocked by the presence of anti-inflammatory agents like dexamethasone, with significant implications on the interplay between inflammation and tissue regeneration.
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