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Abdul Khodir WKW, Abdul Razak AH, Ng MH, Guarino V, Susanti D. Encapsulation and Characterization of Gentamicin Sulfate in the Collagen Added Electrospun Nanofibers for Skin Regeneration. J Funct Biomater 2018; 9:jfb9020036. [PMID: 29783681 PMCID: PMC6023495 DOI: 10.3390/jfb9020036] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 04/26/2018] [Accepted: 05/07/2018] [Indexed: 12/31/2022] Open
Abstract
In the current practice, the clinical use of conventional skin substitutes such as autogenous skin grafts have shown several problems, mainly with respect to limited sources and donor site morbidity. In order to overcome these limitations, the use of smart synthetic biomaterials is tremendously diffusing as skin substitutes. Indeed, engineered skin grafts or analogues frequently play an important role in the treatment of chronic skin wounds, by supporting the regeneration of newly formed tissue, and at the same time preventing infections during the long-term treatment. In this context, natural proteins such as collagen—natively present in the skin tissue—embedded in synthetic polymers (i.e., PCL) allow the development of micro-structured matrices able to mimic the functions and to structure of the surrounding extracellular matrix. Moreover, the encapsulation of drugs, such as gentamicin sulfate, also improves the bioactivity of nanofibers, due to the efficient loading and a controlled drug release towards the site of interest. Herein, we have done a preliminary investigation on the capability of gentamicin sulfate, loaded into collagen-added nanofibers, for the controlled release in local infection treatments. Experimental studies have demonstrated that collagen added fibers can be efficaciously used to administrate gentamicin for 72 h without any toxic in vitro response, thus emerging as a valid candidate for the therapeutic treatment of infected wounds.
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Affiliation(s)
- Wan Khartini Wan Abdul Khodir
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
| | - Abdul Hakim Abdul Razak
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
| | - Min Hwei Ng
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur 56000, Malaysia.
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Deny Susanti
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
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202
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Versteegden LRM, Ter Meer M, Lomme RMLM, van der Vliet JA, Schultze Kool LJ, van Kuppevelt TH, Daamen WF. Self-expandable tubular collagen implants. J Tissue Eng Regen Med 2018; 12:1494-1498. [PMID: 29704312 PMCID: PMC6032829 DOI: 10.1002/term.2685] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 02/25/2018] [Accepted: 04/16/2018] [Indexed: 12/13/2022]
Abstract
Collagen has been extensively used as a biomaterial, yet for tubular organ repair, synthetic polymers or metals (e.g., stents) are typically used. In this study, we report a novel type of tubular implant solely consisting of type I collagen, suitable to self-expand in case of minimal invasive implantation. Potential benefits of this collagen scaffold over conventional materials include improved endothelialization, biodegradation over time, and possibilities to add bioactive components to the scaffold, such as anticoagulants. Implants were prepared by compression of porous scaffolds consisting of fibrillar type I collagen (1.0-2.0% (w/v)). By applying carbodiimide cross-linking to the compressed scaffolds in their opened position, entropy-driven shape memory was induced. The scaffolds were subsequently crimped and dried around a guidewire. Upon exposure to water, crimped scaffolds deployed within 15-60 s (depending on the collagen concentration used), thereby returning to the original opened form. The scaffolds were cytocompatible as assessed by cell culture with human primary vascular endothelial and smooth muscle cells. Compression force required to compress the open scaffolds increased with collagen content from 16 to 32 mN for 1.0% to 2.0% (w/v) collagen scaffolds. In conclusion, we report the first self-expandable tubular implant consisting of solely type I collagen that may have potential as a biological vascular implant.
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Affiliation(s)
- Luuk R M Versteegden
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Marja Ter Meer
- Department of Radiology and Nuclear Medicine, Radboud university medical center, Nijmegen, The Netherlands
| | - Roger M L M Lomme
- Department of Surgery, Radboud university medical center, Nijmegen, The Netherlands
| | - J Adam van der Vliet
- Department of Surgery, Radboud university medical center, Nijmegen, The Netherlands
| | - Leo J Schultze Kool
- Department of Radiology and Nuclear Medicine, Radboud university medical center, Nijmegen, The Netherlands
| | - Toin H van Kuppevelt
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Willeke F Daamen
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
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203
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Surface Modification of Polymeric Scaffolds for Tissue Engineering Applications. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2018. [DOI: 10.1007/s40883-018-0050-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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204
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Vashist A, Kaushik A, Vashist A, Sagar V, Ghosal A, Gupta YK, Ahmad S, Nair M. Advances in Carbon Nanotubes-Hydrogel Hybrids in Nanomedicine for Therapeutics. Adv Healthc Mater 2018; 7:e1701213. [PMID: 29388356 PMCID: PMC6248342 DOI: 10.1002/adhm.201701213] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/21/2017] [Indexed: 12/21/2022]
Abstract
In spite of significant advancement in hydrogel technology, low mechanical strength and lack of electrical conductivity have limited their next-level biomedical applications for skeletal muscles, cardiac and neural cells. Host-guest chemistry based hybrid nanocomposites systems have gained attention as they completely overcome these pitfalls and generate bioscaffolds with tunable electrical and mechanical characteristics. In recent years, carbon nanotube (CNT)-based hybrid hydrogels have emerged as innovative candidates with diverse applications in regenerative medicines, tissue engineering, drug delivery devices, implantable devices, biosensing, and biorobotics. This article is an attempt to recapitulate the advancement in synthesis and characterization of hybrid hydrogels and provide deep insights toward their functioning and success as biomedical devices. The improved comparative performance and biocompatibility of CNT-hydrogels hybrids systems developed for targeted biomedical applications are addressed here. Recent updates toward diverse applications and limitations of CNT hybrid hydrogels is the strength of the review. This will provide a holistic approach toward understanding of CNT-based hydrogels and their applications in nanotheranostics.
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Affiliation(s)
- Arti Vashist
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Ajeet Kaushik
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Atul Vashist
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India, 110029
| | - Vidya Sagar
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Anujit Ghosal
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India, 110067
| | - Y. K. Gupta
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India, 110029
| | - Sharif Ahmad
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, India, 110025
| | - Madhavan Nair
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
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205
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Spaans S, Fransen PPKH, Ippel BD, de Bont DFA, Keizer HM, Bax NAM, Bouten CVC, Dankers PYW. Supramolecular surface functionalization via catechols for the improvement of cell-material interactions. Biomater Sci 2018. [PMID: 28636048 DOI: 10.1039/c7bm00407a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Optimization of cell-material interactions is crucial for the success of synthetic biomaterials in guiding tissue regeneration. To do so, catechol chemistry is often used to introduce adhesiveness into biomaterials. Here, a supramolecular approach based on ureido-pyrimidinone (UPy) modified polymers is combined with catechol chemistry in order to achieve improved cellular adhesion onto supramolecular biomaterials. UPy-modified hydrophobic polymers with non-cell adhesive properties are developed that can be bioactivated via a modular approach using UPy-modified catechols. It is shown that successful formulation of the UPy-catechol additive with the UPy-polymer results in surfaces that induce cardiomyocyte progenitor cell adhesion, cell spreading, and preservation of cardiac specific extracellular matrix production. Hence, by functionalizing supramolecular surfaces with catechol functionalities, an adhesive supramolecular biomaterial is developed that allows for the possibility to contribute to biomaterial-based regeneration.
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Affiliation(s)
- S Spaans
- Institute for Complex Molecular Systems, Eindhoven University of Technology, De Zaale, 5612 AJ Eindhoven, The Netherlands. and Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, P.O box 513, 5600 MB Eindhoven, The Netherlands
| | - P P K H Fransen
- Institute for Complex Molecular Systems, Eindhoven University of Technology, De Zaale, 5612 AJ Eindhoven, The Netherlands. and Department of Biomedical Engineering, Laboratory of Chemical Biology, Eindhoven University of Technology, P.O. box 513, 5600 MB Eindhoven, The Netherlands
| | - B D Ippel
- Institute for Complex Molecular Systems, Eindhoven University of Technology, De Zaale, 5612 AJ Eindhoven, The Netherlands. and Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, P.O box 513, 5600 MB Eindhoven, The Netherlands
| | - D F A de Bont
- Institute for Complex Molecular Systems, Eindhoven University of Technology, De Zaale, 5612 AJ Eindhoven, The Netherlands. and Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, P.O box 513, 5600 MB Eindhoven, The Netherlands
| | - H M Keizer
- SyMO-Chem BV, Eindhoven University of Technology, De Zaale, 5612 AZ Eindhoven, The Netherlands
| | - N A M Bax
- Institute for Complex Molecular Systems, Eindhoven University of Technology, De Zaale, 5612 AJ Eindhoven, The Netherlands. and Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, P.O box 513, 5600 MB Eindhoven, The Netherlands
| | - C V C Bouten
- Institute for Complex Molecular Systems, Eindhoven University of Technology, De Zaale, 5612 AJ Eindhoven, The Netherlands. and Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, P.O box 513, 5600 MB Eindhoven, The Netherlands
| | - P Y W Dankers
- Institute for Complex Molecular Systems, Eindhoven University of Technology, De Zaale, 5612 AJ Eindhoven, The Netherlands. and Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, P.O box 513, 5600 MB Eindhoven, The Netherlands and Department of Biomedical Engineering, Laboratory of Chemical Biology, Eindhoven University of Technology, P.O. box 513, 5600 MB Eindhoven, The Netherlands
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206
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Sheikholeslam M, Wheeler SD, Duke KG, Marsden M, Pritzker M, Chen P. Peptide and peptide-carbon nanotube hydrogels as scaffolds for tissue & 3D tumor engineering. Acta Biomater 2018; 69:107-119. [PMID: 29248638 DOI: 10.1016/j.actbio.2017.12.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 11/28/2017] [Accepted: 12/08/2017] [Indexed: 12/21/2022]
Abstract
The use of hybrid self-assembling peptide (EFK8)-carbon nanotube (SWNT) hydrogels for tissue engineering and in vitro 3D cancer spheroid formation is reported. These hybrid hydrogels are shown to enhance the attachment, spreading, proliferation and movement of NIH-3T3 cells relative to that observed using EFK8-only hydrogels. After five days, ∼30% more cells are counted when the hydrogel contains SWNTs. Also, 3D encapsulation of these cells when injected in hydrogels does not adversely affect their behavior. Compressive modulus measurements and microscopic examination suggest that SWNTs have this beneficial effect by providing sites for cell anchorage, spreading and movement rather than by increasing hydrogel stiffness. This shows that the cells have a particular interaction with SWNTs not shared with EFK8 nanofibers despite a similar morphology. The effect of EFK8 and EFK8-SWNT hydrogels on A549 lung cancer cell behavior is also investigated. Increasing stiffness of EFK8-only hydrogels from about 44 Pa to 104 Pa promotes a change in A549 morphology from spheroidal to a stretched one similar to migratory phenotype. EFK8-SWNT hydrogels also promote a stretched morphology, but at lower stiffness. These results are discussed in terms of the roles of both microenvironment stiffness and cell-scaffold adhesion in cancer cell invasion. Overall, this study demonstrates that applications of peptide hydrogels in vitro can be expanded by incorporating SWNTs into their structure which further provides insight into cell-biomaterial interactions. STATEMENT OF SIGNIFICANCE For the first time we used hybrid self-assembling peptide-carbon nanotube hybrid hydrogels (that we have recently introduced briefly in the "Carbon" journal in 2014) for tissue engineering and 3D tumor engineering. We showed the potential of these hybrid hydrogels to enhance the efficiency of the peptide hydrogels for tissue engineering application in terms of cell behavior (cell attachment, spreading and migration). This opens up new rooms for the peptide hydrogels and can expand their applications. Also our system (peptide and peptide-CNT hydrogels) was used for cancer cell spheroid formation showing the effect of both tumor microenvironment stiffness and cell-scaffold adhesion on cancer cell invasion. This was only possible based on the presence of CNTs in the hydrogel while the stiffness kept constant. Finally it should be noted that these hybrid hydrogels expand applications of peptide hydrogels through enhancing their capabilities and/or adding new properties to them.
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207
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Abstract
Collagen is widely used in tissue engineering because it can be extracted in large quantities, and has excellent biocompatibility, good biodegradability, and weak antigenicity. In the present study, we isolated printable collagen from bovine Achilles tendon and examined the purity of the isolated collagen using sodium dodecyl sulfate polyacrylamide gel electrophoresis. The bands obtained corresponded to α1, α2 and β chains with little contamination from other small proteins. Furthermore, rheological measurements of collagen dispersions (60 mg per ml of PBS) at pH 7 revealed values of viscosity of 35.62 ± 1.42 Pa s at shear rate of 10 s - 1 and a shear thinning behavior. Collagen gels and solutions can be used for building scaffolds by three-dimensional (3D) printing. After designing and fabricating a low-cost 3D printer we assayed the collagen printing and obtaining 3D printed scaffolds of collagen at pH 7. The porosity of the scaffold was 90.22% ± 0.88% and the swelling ratio was 1437% ± 146%. The microstructure of the scaffolds was studied using scanning electron microscopy, and a porous mesh of fibrillar collagen was observed. In addition, the 3D printed collagen scaffold was not cytotoxic with cell viability higher than 70% using Vero and NIH 3 T3 cells. In vitro evaluation using both cells lines demonstrated that the collagen scaffolds had the ability to support cell attachment and proliferation. Also a fibrillar collagen mesh was observed after two weeks of culture at 37 °C. Overall, these results are promising since they show the capability of the presented protocol to obtain printable fibrillar collagen at pH 7 and the potential of the printing technique for building low-cost biocompatible 3D plotted structures which maintained the fibrillar collagen structure after incubation in culture media without using additional strategies as crosslinking.
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208
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An experimental toolbox for characterization of mammalian collagen type I in biological specimens. Nat Protoc 2018; 13:507-529. [PMID: 29446773 DOI: 10.1038/nprot.2017.117] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Collagen type I is the most abundant extracellular matrix protein, and collagen type I supramolecular assemblies (e.g., tissue grafts, biomaterials and cell-assembled systems) are used extensively in tissue engineering and regenerative medicine. Many studies, for convenience or economic reasons, do not accurately determine collagen type I purity, concentration, solubility and extent of cross-linking in biological specimens, frequently resulting in erroneous conclusions. In this protocol, we describe solubility; normal, reduced and delayed (interrupted) SDS-PAGE; hydroxyproline; Sircol collagen and Pierce BCA protein; denaturation temperature; ninhydrin/trinitrobenzene sulfonic acid; and collagenase assays and assess them in a diverse range of biological samples (e.g., tissue samples; purified solutions or lyophilized materials; 3D scaffolds, such as sponges and hydrogels; and cell media and layers). Collectively, the described protocols provide a comprehensive, yet fast and readily implemented, toolbox for collagen type I characterization in any biological specimen.
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209
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Salamanna F, Borsari V, Brogini S, Giavaresi G, Parrilli A, Cepollaro S, Cadossi M, Martini L, Mazzotti A, Fini M. An in vitro 3D bone metastasis model by using a human bone tissue culture and human sex-related cancer cells. Oncotarget 2018; 7:76966-76983. [PMID: 27765913 PMCID: PMC5363563 DOI: 10.18632/oncotarget.12763] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 09/27/2016] [Indexed: 01/08/2023] Open
Abstract
One of the main limitations, when studying cancer-bone metastasis, is the complex nature of the native bone environment and the lack of reliable, simple, inexpensive models that closely mimic the biological processes occurring in patients and allowing the correct translation of results. To enhance the understanding of the mechanisms underlying human bone metastases and in order to find new therapies, we developed an in vitro three-dimensional (3D) cancer-bone metastasis model by culturing human breast or prostate cancer cells with human bone tissue isolated from female and male patients, respectively. Bone tissue discarded from total hip replacement surgery was cultured in a rolling apparatus system in a normoxic or hypoxic environment. Gene expression profile, protein levels, histological, immunohistochemical and four-dimensional (4D) micro-CT analyses showed a noticeable specificity of breast and prostate cancer cells for bone colonization and ingrowth, thus highlighting the species-specific and sex-specific osteotropism and the need to widen the current knowledge on cancer-bone metastasis spread in human bone tissues. The results of this study support the application of this model in preclinical studies on bone metastases and also follow the 3R principles, the guiding principles, aimed at replacing/reducing/refining (3R) animal use and their suffering for scientific purposes.
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Affiliation(s)
- Francesca Salamanna
- Laboratory of Biocompatibility, Technological Innovation and Advanced Therapy, Rizzoli RIT, Rizzoli Orthopedic Institute, Bologna, Italy.,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Veronica Borsari
- Laboratory of Biocompatibility, Technological Innovation and Advanced Therapy, Rizzoli RIT, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Silvia Brogini
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Gianluca Giavaresi
- Laboratory of Biocompatibility, Technological Innovation and Advanced Therapy, Rizzoli RIT, Rizzoli Orthopedic Institute, Bologna, Italy.,Laboratory of Tissue Engineering-Innovative Technology Platforms for Tissue Engineering, Rizzoli Orthopedic Institute, Palermo, Italy
| | - Annapaola Parrilli
- Laboratory of Biocompatibility, Technological Innovation and Advanced Therapy, Rizzoli RIT, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Simona Cepollaro
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy.,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Matteo Cadossi
- I Orthopaedics and Trauma Clinic, Rizzoli Orthopaedic Institute, Bologna, Italy.,University of Bologna, Bologna, Italy
| | - Lucia Martini
- Laboratory of Biocompatibility, Technological Innovation and Advanced Therapy, Rizzoli RIT, Rizzoli Orthopedic Institute, Bologna, Italy.,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Antonio Mazzotti
- I Orthopaedics and Trauma Clinic, Rizzoli Orthopaedic Institute, Bologna, Italy.,University of Bologna, Bologna, Italy
| | - Milena Fini
- Laboratory of Biocompatibility, Technological Innovation and Advanced Therapy, Rizzoli RIT, Rizzoli Orthopedic Institute, Bologna, Italy.,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
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210
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Zhang YS, Oklu R, Dokmeci MR, Khademhosseini A. Three-Dimensional Bioprinting Strategies for Tissue Engineering. Cold Spring Harb Perspect Med 2018; 8:a025718. [PMID: 28289247 PMCID: PMC5793742 DOI: 10.1101/cshperspect.a025718] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Over the past decades, many approaches have been developed to fabricate biomimetic extracellular matrices of desired properties for engineering functional tissues. However, the inability of these techniques to precisely control the spatial architecture has posed a significant challenge in producing complex tissues. 3D bioprinting technology has emerged as a potential solution by bringing unprecedented freedom and versatility in depositing biological materials and cells in a well-controlled manner in the 3D volumes, therefore achieving precision engineering of functional tissues. In this article, we review the application of 3D bioprinting to tissue engineering. We first discuss the general strategies for printing functional tissue constructs. We next describe different types of bioprinting with a focus on nozzle-based techniques and their respective advantages. Finally, we summarize the limitations of current technologies and propose challenges for future development of bioprinting.
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Affiliation(s)
- Yu Shrike Zhang
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115
| | - Rahmi Oklu
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Division of Vascular & Interventional Radiology, Mayo Clinic, Scottsdale, Arizona 85259
| | - Mehmet Remzi Dokmeci
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
- Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
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211
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Langhans SA. Three-Dimensional in Vitro Cell Culture Models in Drug Discovery and Drug Repositioning. Front Pharmacol 2018; 9:6. [PMID: 29410625 PMCID: PMC5787088 DOI: 10.3389/fphar.2018.00006] [Citation(s) in RCA: 868] [Impact Index Per Article: 144.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 01/03/2018] [Indexed: 02/06/2023] Open
Abstract
Drug development is a lengthy and costly process that proceeds through several stages from target identification to lead discovery and optimization, preclinical validation and clinical trials culminating in approval for clinical use. An important step in this process is high-throughput screening (HTS) of small compound libraries for lead identification. Currently, the majority of cell-based HTS is being carried out on cultured cells propagated in two-dimensions (2D) on plastic surfaces optimized for tissue culture. At the same time, compelling evidence suggests that cells cultured in these non-physiological conditions are not representative of cells residing in the complex microenvironment of a tissue. This discrepancy is thought to be a significant contributor to the high failure rate in drug discovery, where only a low percentage of drugs investigated ever make it through the gamut of testing and approval to the market. Thus, three-dimensional (3D) cell culture technologies that more closely resemble in vivo cell environments are now being pursued with intensity as they are expected to accommodate better precision in drug discovery. Here we will review common approaches to 3D culture, discuss the significance of 3D cultures in drug resistance and drug repositioning and address some of the challenges of applying 3D cell cultures to high-throughput drug discovery.
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Affiliation(s)
- Sigrid A. Langhans
- Nemours Center for Childhood Cancer Research and Nemours Center for Neuroscience Research, Alfred I. duPont Hospital for Children, Wilmington, DE, United States
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212
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Sung B, Kim MH. Liquid-crystalline nanoarchitectures for tissue engineering. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:205-215. [PMID: 29441265 PMCID: PMC5789436 DOI: 10.3762/bjnano.9.22] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 11/21/2017] [Indexed: 05/03/2023]
Abstract
Hierarchical orders are found throughout all levels of biosystems, from simple biopolymers, subcellular organelles, single cells, and macroscopic tissues to bulky organs. Especially, biological tissues and cells have long been known to exhibit liquid crystal (LC) orders or their structural analogues. Inspired by those native architectures, there has recently been increased interest in research for engineering nanobiomaterials by incorporating LC templates and scaffolds. In this review, we introduce and correlate diverse LC nanoarchitectures with their biological functionalities, in the context of tissue engineering applications. In particular, the tissue-mimicking LC materials with different LC phases and the regenerative potential of hard and soft tissues are summarized. In addition, the multifaceted aspects of LC architectures for developing tissue-engineered products are envisaged. Lastly, a perspective on the opportunities and challenges for applying LC nanoarchitectures in tissue engineering fields is discussed.
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Affiliation(s)
- Baeckkyoung Sung
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH 44242, USA
- Department of Biological Sciences, Kent State University, Kent, OH 44242, USA
| | - Min-Ho Kim
- Department of Biological Sciences, Kent State University, Kent, OH 44242, USA
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213
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Lin CW, Yang KC, Cheng NC, Tsai WB, Lou KL, Yu J. Evaluation of adhesion, proliferation, and differentiation of human adipose-derived stem cells on keratin. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1446-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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214
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Tarannum A, Adams A, Blümich B, Fathima NN. Impact of Ionic Liquids on the Structure and Dynamics of Collagen. J Phys Chem B 2018; 122:1060-1065. [DOI: 10.1021/acs.jpcb.7b09626] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Aafiya Tarannum
- Inorganic
and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Chennai 600020, India
| | - Alina Adams
- Institut
für Technische and Makromolekulare Chemie, RWTH Aachen University, Templergraben 55, Aachen D-52056, Germany
| | - Bernhard Blümich
- Institut
für Technische and Makromolekulare Chemie, RWTH Aachen University, Templergraben 55, Aachen D-52056, Germany
| | - Nishter Nishad Fathima
- Inorganic
and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Chennai 600020, India
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215
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Stagnaro P, Schizzi I, Utzeri R, Marsano E, Castellano M. Alginate-polymethacrylate hybrid hydrogels for potential osteochondral tissue regeneration. Carbohydr Polym 2018; 185:56-62. [PMID: 29421060 DOI: 10.1016/j.carbpol.2018.01.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 12/06/2017] [Accepted: 01/03/2018] [Indexed: 11/18/2022]
Abstract
Porous scaffolds based on alginate-polymethacrylate hybrid hydrogels intended for bone and cartilage regeneration were prepared through controlled calcium ions diffusion from an agar mould. The double interconnected network of such materials combines into a single porous structure maintained by both noncovalent crosslinks (calcium ions for alginate) and covalent crosslinks (polymethacrylate crosslinked by the addition of mixtures of mono and bifunctional monomers). The alginate component ensures the appropriate micro-environment to mimic the extra-cellular matrix, whereas the polymethacrylate improves the mechanical performances of the hybrid hydrogels, helping to overcome the mechanical limitations of the alginate component. Morphological characterization and porosity analysis of the hybrid scaffolds were assessed by scanning electron microscopy and micro-computed tomography. Relative concentration and distribution of calcium ions were evaluated by atomic absorption and dispersive X-ray analysis, respectively. Uniaxial compressive mechanical tests were conducted to evaluate the compressive elastic modulus of the hybrid hydrogels that was correlated with their swelling ratio and crosslinking degree. As was envisaged a much higher modulus (about seven times) was obtained for the hybrid Alg/HE hydrogel than with alginate alone.
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Affiliation(s)
- P Stagnaro
- Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy.
| | - I Schizzi
- Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy
| | - R Utzeri
- Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy
| | - E Marsano
- Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - M Castellano
- Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova, Italy.
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216
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Trachsel L, Broguiere N, Rosenboom JG, Zenobi-Wong M, Benetti EM. Enzymatically crosslinked poly(2-alkyl-2-oxazoline) networks for 3D cell culture. J Mater Chem B 2018; 6:7568-7572. [DOI: 10.1039/c8tb02382d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Cellularized poly(2-alkyl-2-oxazoline) hydrogels fabricated by sortase-mediated crosslinking feature tunable mechanical properties and enable extremely high cell viability.
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Affiliation(s)
- Lucca Trachsel
- Tissue Engineering + Biofabrication
- Department of Health Sciences and Technology
- ETH Zürich
- Zürich
- Switzerland
| | - Nicolas Broguiere
- Tissue Engineering + Biofabrication
- Department of Health Sciences and Technology
- ETH Zürich
- Zürich
- Switzerland
| | - Jan-Georg Rosenboom
- Institute of Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- Zürich
- Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering + Biofabrication
- Department of Health Sciences and Technology
- ETH Zürich
- Zürich
- Switzerland
| | - Edmondo M. Benetti
- Polymer Surfaces Group
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- Zürich
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217
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Fabrication of Hydrogel Materials for Biomedical Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:197-224. [PMID: 30357691 DOI: 10.1007/978-981-13-0947-2_12] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hydrogels are three-dimensional hydrophilic polymeric networks that can be made from a wide range of natural and synthetic polymers. This review discusses recent advanced engineering methods to fabricate hydrogels for biomedical applications with emphasis in cardiac constructs and wound healing. Layer-by-Layer (LbL) assembly offers a tissue-engineered construct with robust and highly ordered structures for cell proliferation and differentiation. Three-dimensional printings, including inkjet printing, fused deposition modeling, and stereolithographic apparatus, have been widely employed to fabricate complex structures (e.g., heart valves). Moreover, the state-of-the-art design of intelligent/stimulus-responsive hydrogels can be used for a wide range of biomedical applications, including drug delivery, glucose delivery, shape memory, wound dressings, and so on. In the future, an increasing number of hydrogels with tunable mechanical properties and versatile functions will be developed for biomedical applications by employing advanced engineering techniques with novel material design.
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218
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Nguyen KN, Bobba S, Richardson A, Park M, Watson SL, Wakefield D, Di Girolamo N. Native and synthetic scaffolds for limbal epithelial stem cell transplantation. Acta Biomater 2018; 65:21-35. [PMID: 29107055 DOI: 10.1016/j.actbio.2017.10.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 10/22/2017] [Accepted: 10/25/2017] [Indexed: 12/13/2022]
Abstract
UNLABELLED Limbal stem cell deficiency (LSCD) is a complex blinding disease of the cornea, which cannot be treated with conventional corneal transplants. Instead, a stem cell (SC) graft is required to replenish the limbal epithelial stem cell (LESC) reservoir, which is ultimately responsible for regenerating the corneal epithelium. Current therapies utilize limbal tissue biopsies that harbor LESCs as well as tissue culture expanded cells. Typically, this tissue is placed on a scaffold that supports the formation of corneal epithelial cell sheets, which are then transferred to diseased eyes. A wide range of biological and synthetic materials have been identified as carrier substrates for LESC, some of which have been used in the clinic, including amniotic membrane, fibrin, and silicon hydrogel contact lenses, each with their own advantages and limitations. This review will provide a brief background of LSCD, focusing on bio-scaffolds that have been utilized in limbal stem cell transplantation (LSCT) and materials that are being developed as potentially novel therapeutics for patients with this disease. STATEMENT OF SIGNIFICANCE The outcome of patients with corneal blindness that receive stem cell grafts to restore eye health and correct vision varies considerably and may be due to the different biological and synthetic scaffolds used to deliver these cells to the ocular surface. This review will highlight the positive attributes and limitations of the myriad of carriers developed for clinical use as well as those that are being trialled in pre-clinical models. The overall focus is on developing a standardized therapy for patients, however due to the multiple causes of corneal blindness, a personal regenerative medicine approach may be the best option.
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Affiliation(s)
- Kim N Nguyen
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Samantha Bobba
- Prince of Wales Hospital Clinical School, Sydney, Australia
| | | | - Mijeong Park
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | | | - Denis Wakefield
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Nick Di Girolamo
- School of Medical Sciences, University of New South Wales, Sydney, Australia.
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219
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Van Duong H, Chau TTL, Dang NTT, Nguyen DV, Le SL, Ho TS, Vu TP, Tran TTV, Nguyen TD. Self-aggregation of water-dispersible nanocollagen helices. Biomater Sci 2018; 6:651-660. [DOI: 10.1039/c7bm01141e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The self-aggregation of water-dispersible native collagen nanofibrils has been investigated to generate hierarchical networks with structural variation from helicity to layering.
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Affiliation(s)
- Hau Van Duong
- Department of Chemistry
- Hue University of Agriculture and Forestry
- Hue University
- Hue 530000
- Vietnam
| | - Trang The Lieu Chau
- Department of Chemistry
- Hue University of Sciences
- Hue University
- Hue 530000
- Vietnam
| | - Nhan Thi Thanh Dang
- Department of Chemistry
- Hue University of Education
- Hue University
- Hue 530000
- Vietnam
| | - Duc Van Nguyen
- Faculty of Agronomy
- Hue University of Agriculture and Forestry
- Hue 530000
- Vietnam
| | - Son Lam Le
- Department of Chemistry
- Hue University of Sciences
- Hue University
- Hue 530000
- Vietnam
| | - Thang Sy Ho
- Department of Natural Resource and Environment
- Dong Thap University
- Dong Thap 870000
- Vietnam
| | - Tuyen Phi Vu
- Institute of Research and Development
- Duy Tan University
- Da Nang 550000
- Vietnam
- National Institute of Information and Communications Strategy
| | - Thi Thi Van Tran
- Department of Chemistry
- Hue University of Sciences
- Hue University
- Hue 530000
- Vietnam
| | - Thanh-Dinh Nguyen
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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220
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Goodarzi P, Falahzadeh K, Nematizadeh M, Farazandeh P, Payab M, Larijani B, Tayanloo Beik A, Arjmand B. Tissue Engineered Skin Substitutes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1107:143-188. [PMID: 29855826 DOI: 10.1007/5584_2018_226] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The fundamental skin role is to supply a supportive barrier to protect body against harmful agents and injuries. Three layers of skin including epidermis, dermis and hypodermis form a sophisticated tissue composed of extracellular matrix (ECM) mainly made of collagens and glycosaminoglycans (GAGs) as a scaffold, different cell types such as keratinocytes, fibroblasts and functional cells embedded in the ECM. When the skin is injured, depends on its severity, the majority of mentioned components are recruited to wound regeneration. Additionally, different growth factors like fibroblast growth factor (FGF), epidermal growth factor (EGF), vascular endothelial growth factor (VEGF) are needed to orchestrated wound healing process. In case of large surface area wounds, natural wound repair seems inefficient. Inspired by nature, scientists in tissue engineering field attempt to engineered constructs mimicking natural healing process to promote skin restoration in untreatable injuries. There are three main types of commercially available engineered skin substitutes including epidermal, dermal, and dermoepidermal. Each of them could be composed of scaffold, desired cell types or growth factors. These substitutes could have autologous, allogeneic, or xenogeneic origin. Moreover, they may be cellular or acellular. They are used to accelerate wound healing and recover normal skin functions with pain relief. Although there are a wide variety of commercially available skin substitutes, almost none of them considered as an ideal equivalents required for proper wound healing.
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Affiliation(s)
- Parisa Goodarzi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Khadijeh Falahzadeh
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehran Nematizadeh
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Parham Farazandeh
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Moloud Payab
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Akram Tayanloo Beik
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Babak Arjmand
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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221
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Zhang J, Sun Y, Zhao Y, Wei B, Xu C, He L, Oliveira CLP, Wang H. Centrifugation-induced fibrous orientation in fish-sourced collagen matrices. SOFT MATTER 2017; 13:9220-9228. [PMID: 29199311 DOI: 10.1039/c7sm01871a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Orientation of fibrous collagen structures plays an important role not only in the native function of various biological tissues but also in the development of next-generation tissue engineering scaffolds. However, the controlled assembly of collagen in vitro into an anisotropic structure, avoiding complex technical procedures and specialized apparatus, remains a challenge. Here, an oriented collagen matrix was fabricated at the macroscale by simple centrifugation, and the aligned topographical features of the resulting collagen matrix were revealed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and small angle X-ray scattering. The aligned matrix exhibited a higher ultimate tensile strength and strain than a random matrix. Centrifugation had an impact on the diameter and density of the collagen fibrils, while it had no effect on their native D-periodicity and thermal stability. Additionally, structural anisotropy of the collagen matrix facilitated the proliferation and migration of NIH/3T3 fibroblasts, compared with the random one. This simple and cost-effective method could lead to mass production of aligned collagen matrices and future possibilities for different applications in tissue engineering.
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Affiliation(s)
- Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
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222
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Confocal Rheology Probes the Structure and Mechanics of Collagen through the Sol-Gel Transition. Biophys J 2017; 113:1882-1892. [PMID: 29045881 DOI: 10.1016/j.bpj.2017.08.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 07/18/2017] [Accepted: 08/18/2017] [Indexed: 01/19/2023] Open
Abstract
Fibrillar type I collagen-based hydrogels are commonly used in tissue engineering and as matrices for biophysical studies. Mechanical and structural properties of these gels are known to be governed by the conditions under which fibrillogenesis occurs, exhibiting variation as a function of protein concentration, temperature, pH, and ionic strength. Deeper understanding of how macroscopic structure affects viscoelastic properties of collagen gels over the course of fibrillogenesis provides fundamental insight into biopolymer gel properties and promises enhanced control over the properties of such gels. Here, we investigate type I collagen fibrillogenesis using confocal rheology-simultaneous confocal reflectance microscopy, confocal fluorescence microscopy, and rheology. The multimodal approach allows direct comparison of how viscoelastic properties track the structural evolution of the gel on fiber and network length scales. Quantitative assessment and comparison of each imaging modality and the simultaneously collected rheological measurements show that the presence of a system-spanning structure occurs at a time similar to rheological determinants of gelation. Although this and some rheological measures are consistent with critical gelation through percolation, additional rheological and structural properties of the gel are found to be inconsistent with this theory. This study clarifies how structure sets viscoelasticity during collagen fibrillogenesis and more broadly highlights the utility of multimodal measurements as critical test-beds for theoretical descriptions of complex systems.
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223
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Compressed collagen constructs with optimized mechanical properties and cell interactions for tissue engineering applications. Int J Biol Macromol 2017; 108:158-166. [PMID: 29162461 DOI: 10.1016/j.ijbiomac.2017.11.117] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 11/16/2017] [Accepted: 11/17/2017] [Indexed: 12/13/2022]
Abstract
In this study, we are introducing a simple, fast and reliable add-in to the technique of plastic compression to obtain collagen sheets with decreased fibrillar densities, representing improved cell-interactions and mechanical properties. Collagen hydrogels with different initial concentrations (1.64mg/mL-0.41mg/mL) were compressed around an electrospun sheet of PLGA. The scaffolds were then studied as non-seeded, or seeded with 3T3 fibroblast cells and cultured for 7days. Confocal microscopy and TEM imaging of non-seeded scaffolds showed that by decreasing the share of collagen in the hydrogel formula, collagen sheets with similar thickness but lower fibrous densities were achieved. Nanomechanical characterization of compressed collagen sheets by AFM showed that Young's modulus was inversely proportional to the final concentration of collagen. Similarly, according to SEM, MTS, and cell nuclei counting, all the scaffolds supported cell adhesion and proliferation, whilst the highest metabolic activities and proliferation were seen in the scaffolds with lowest collagen content in hydrogel formula. We conclude that by decreasing the collagen content in the formula of collagen hydrogel for plastic compression, not only a better cell environment and optimum mechanical properties are achieved, but also the application costs of this biopolymer is reduced.
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224
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Preparation and characterization of gelatin/sericin/carboxymethyl chitosan medical tissue glue. J Appl Biomater Funct Mater 2017; 16:97-106. [DOI: 10.5301/jabfm.5000384] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: The development and application of medical glue has been continuously expanding and advancing. However, there are few glues that combine low-cost with excellent biocompatibility. Methods: We have prepared a medical tissue glue using a gelatin (Gel), sericin (SS) and carboxymethyl chitosan (CMCS) blend solution, cross-linked with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC). The combination’s characteristics and microstructure morphology were observed by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). Bond strength tests were used to measure the bond strength of the glue. To assay blood compatibility, a hemolytic test, dynamic coagulation test and platelet adherence test were also investigated. Further, the cellular behavior of L-929 and a systemic acute toxicity test on the Gel/SS/CMCS tissue glue were also investigated by MTT and H&E staining. Results: Characterization analysis showed that there was stable binding between raw materials, forming an amide bond with homogeneous holes. The bond strength of the tissue glue reached 2.50 ± 0.04 N in 10 minutes, slightly higher than the alpha-cyanoacrylate biological glue (2.25 ± 0.05 N). Blood compatibility tests revealed that the glue had outstanding blood compatibility. Further, cytotoxicity test and systemic acute toxicity test both showed that the glue was without cytotoxicity and not toxic to the body. Conclusions: The Gel/SS/CMCS tissue glue we prepared at low cost had excellent biocompatibility and structural characteristics. It could be a better candidate for tissue engineering in biomedical applications applied in clinical practice to promote skin wound healing and to further reduce the formation of skin wound scars.
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225
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Rosenblatt J, Reitzel RA, Viola GM, Vargas-Cruz N, Selber J, Raad I. Sodium Mercaptoethane Sulfonate Reduces Collagenolytic Degradation and Synergistically Enhances Antimicrobial Durability in an Antibiotic-Loaded Biopolymer Film for Prevention of Surgical-Site Infections. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3149536. [PMID: 29238713 PMCID: PMC5697372 DOI: 10.1155/2017/3149536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 10/09/2017] [Indexed: 11/26/2022]
Abstract
Implant-associated surgical-site infections can have significant clinical consequences. Previously we reported a method for prophylactically disinfecting implant surfaces in surgical pockets, where an antibiotic solution containing minocycline (M) and rifampin (R) was applied as a solid film in a crosslinked biopolymer matrix that partially liquefied in situ to provide extended prophylaxis. Here we studied the effect of adding sodium 2-mercaptoethane sulfonate (MeSNA) on durability of prophylaxis in an in vitro model of implant-associated surgical-site infection. Adding MeSNA to the M/R biopolymer, antimicrobial film extended the duration for which biofilm formation by multidrug-resistant Pseudomonas aeruginosa (MDR-PA) was prevented on silicone surfaces in the model. M/R films with and without MeSNA were effective in preventing colonization by methicillin-resistant Staphylococcus aureus. Independent experiments revealed that MeSNA directly inhibited proteolytic digestion of the biopolymer film and synergistically enhanced antimicrobial potency of M/R against MDR-PA. Incubation of the MeSNA containing films with L929 fibroblasts revealed no impairment of cellular metabolic activity or viability.
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Affiliation(s)
- Joel Rosenblatt
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ruth A. Reitzel
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - George M. Viola
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nylev Vargas-Cruz
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jesse Selber
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Issam Raad
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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226
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A Quantitative Analysis of Microcirculation in Skin Defects Covered with Topical Wound Dressings or a Newly Developed Collagen Matrix. Adv Skin Wound Care 2017; 30:517-521. [DOI: 10.1097/01.asw.0000525848.21221.b8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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227
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Delgado LM, Shologu N, Fuller K, Zeugolis DI. Acetic acid and pepsin result in high yield, high purity and low macrophage response collagen for biomedical applications. ACTA ACUST UNITED AC 2017; 12:065009. [PMID: 28767045 DOI: 10.1088/1748-605x/aa838d] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Collagen based devices are frequently associated with foreign body response. Although several pre- (e.g. species, state of animal, tissue) and post- (e.g. cross-linking, scaffold architecture) extraction method factors have a profound effect on foreign body response, little is known about which and how during the extraction process factors mediate foreign body response. In this study, we assessed the influence of acetic acid and hydrochloric acid and the utilisation or not of pepsin or salt precipitation during collagen extraction on the yield, purity, free amines, denaturation temperature, resistance to collagenase degradation and macrophage response. Acetic acid/pepsin extracted collagen exhibited the highest yield, purity and free amine content and the lowest denaturation temperature. No differences in resistance to collagenase digestion were detected between the groups. Although all treatments exhibited similar macrophage morphology comprised of round cells (M1 phenotype), elongated cells (M2 phenotype) and cell aggregates (foreign body response), significantly more elongated cells were observed on HC films. Although no differences in metabolic activity were observed between the groups, the DNA concentration was significantly lower for the hydrochloric acid treatments. Further, cytokine analysis revealed that hydrochloric acid treatments induced significantly higher IL-1β and TNF-α release with respect to acetic acid treatments. Salt precipitation did not influence the parameters assessed. Collectively, these data suggest that during the collagen extraction process variables should also be monitored as, evidently, they affect the physicochemical and biological properties of collagen preparations.
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Affiliation(s)
- Luis M Delgado
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland. Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
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228
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Effects of various monomers and micro-structure of polyhydroxyalkanoates on the behavior of endothelial progenitor cells and endothelial cells for vascular tissue engineering. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1341-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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229
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Masalskas BF, Martins Júnior W, Leoni GB, Faloni APDS, Marcaccini AM, Silva Sousa YTC, Castro-Raucci LMSD. Local delivery of strontium ranelate promotes regeneration of critical size bone defects filled with collagen sponge. J Biomed Mater Res A 2017; 106:333-341. [PMID: 28913909 DOI: 10.1002/jbm.a.36237] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/31/2017] [Accepted: 09/12/2017] [Indexed: 01/12/2023]
Abstract
The effect of local delivery of strontium ranelate (SR) on bone regeneration of critical size bone defects filled with collagen sponge was evaluated. Bone defects of 5 mm diameter created in rat calvaria were filled with collagen sponge (C); collagen sponge with 5 mM Sr2+ SR (C5SR) or collagen sponge with 50 mM Sr2+ SR (C50SR). After 2, 4, and 6 weeks, bone volume (BV), bone surface (BS), trabecular thickness (Tb.Th), trabecular number (Tb.N), and trabecular separation (Tb.Sp) were evaluated by computed microtomography. At 6 weeks, histological analysis was performed. Intragroup comparisons were made by the Friedman test, while comparisons between groups were made by Kruskal-Wallis test (α = 5%). All groups showed increased BV, BS, Tb.Th, and Tb.N over time, but only C50SR promoted the reduction of Tb.Sp (p < 0.05). No significant differences between groups were detected at weeks 2 and 4. However, C50SR showed the highest values of BV, BS, and Tb.Th at 6 weeks (p < 0.05). Histological analysis revealed connective tissue in C and C5SR and immature bone tissue in C50SR. Local delivery of SR 50 mM Sr2+ associated with collagen sponge increased and accelerated bone regeneration in critical bone defects. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 333-341, 2018.
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Affiliation(s)
| | - Walter Martins Júnior
- School of Dentistry, University of Ribeirao Preto, Ribeirao Preto, Sao Paulo, Brazil
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230
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Ogino S, Morimoto N, Sakamoto M, Jinno C, Yoshikawa K, Enoshiri T, Sakamoto Y, Taira T, Suzuki S. Development of a novel bioabsorbable implant that is substituted by adipose tissue in vivo. J Tissue Eng Regen Med 2017; 12:633-641. [DOI: 10.1002/term.2482] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 05/08/2017] [Accepted: 05/13/2017] [Indexed: 01/25/2023]
Affiliation(s)
- Shuichi Ogino
- Department of Plastic and Reconstructive Surgery, Graduate School of MedicineKyoto University Kyoto Japan
| | - Naoki Morimoto
- Department of Plastic and Reconstructive SurgeryKansai Medical University Hirakata Japan
| | - Michiharu Sakamoto
- Department of Plastic and Reconstructive Surgery, Graduate School of MedicineKyoto University Kyoto Japan
| | - Chizuru Jinno
- Department of Plastic and Reconstructive Surgery, Graduate School of MedicineKyoto University Kyoto Japan
| | - Katsuhiro Yoshikawa
- Department of Plastic and Reconstructive SurgeryShiga Medical Center for Adults Moriyama Japan
| | - Tatsuki Enoshiri
- Department of Plastic and Reconstructive Surgery, Graduate School of MedicineKyoto University Kyoto Japan
| | | | | | - Shigehiko Suzuki
- Department of Plastic and Reconstructive Surgery, Graduate School of MedicineKyoto University Kyoto Japan
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231
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Loy C, Pezzoli D, Candiani G, Mantovani D. A Cost-Effective Culture System for the In Vitro Assembly, Maturation, and Stimulation of Advanced Multilayered Multiculture Tubular Tissue Models. Biotechnol J 2017; 13. [DOI: 10.1002/biot.201700359] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/24/2017] [Indexed: 01/25/2023]
Affiliation(s)
- Caroline Loy
- Laboratory for Biomaterials and Bioengineering; Canada Research Chair I in Biomaterials and Bioengineering for the Innovation in Surgery; Division of Regenerative Medicine; Department of Min-Met-Materials Engineering; Research Center of CHU de Québec; Laval University; PLT-1745G Québec City QC Canada G1V 0A6
| | - Daniele Pezzoli
- Laboratory for Biomaterials and Bioengineering; Canada Research Chair I in Biomaterials and Bioengineering for the Innovation in Surgery; Division of Regenerative Medicine; Department of Min-Met-Materials Engineering; Research Center of CHU de Québec; Laval University; PLT-1745G Québec City QC Canada G1V 0A6
| | - Gabriele Candiani
- Department of Chemistry; Materials and Chemical Engineering “Giulio Natta”; Politecnico di Milano; Milan Italy
- The Protein Factory Research Center; Politecnico of Milano and University of Insubria; Milan Italy
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering; Canada Research Chair I in Biomaterials and Bioengineering for the Innovation in Surgery; Division of Regenerative Medicine; Department of Min-Met-Materials Engineering; Research Center of CHU de Québec; Laval University; PLT-1745G Québec City QC Canada G1V 0A6
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232
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Natural and synthetic polymers/bioceramics/bioactive compounds-mediated cell signalling in bone tissue engineering. Int J Biol Macromol 2017; 110:88-96. [PMID: 28917940 DOI: 10.1016/j.ijbiomac.2017.09.029] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/26/2017] [Accepted: 09/12/2017] [Indexed: 12/24/2022]
Abstract
Bone is a highly integrative and dynamic tissue of the human body. It is continually remodeled by bone cells such as osteoblasts, osteoclasts. When a fraction of a bone is damaged or deformed, stem cells and bone cells under the influence of several signaling pathways regulate bone regeneration at the particular locale. Effective therapies for bone defects can be met via bone tissue engineering which employs drug delivery systems with biomaterials to enhance cellular functions by acting on signaling pathways such as Wnt, BMP, TGF-β, and Notch. This review provides the current understanding of polymers/bioceramics/bioactive compounds as scaffolds in activation of signaling pathways for the formation of bone.
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233
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Li Y, Wan W. Exploring Polymer Nanofiber Mechanics: A review of the methods for determining their properties. IEEE NANOTECHNOLOGY MAGAZINE 2017. [DOI: 10.1109/mnano.2017.2708819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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234
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Costa A, Naranjo JD, Londono R, Badylak SF. Biologic Scaffolds. Cold Spring Harb Perspect Med 2017; 7:cshperspect.a025676. [PMID: 28320826 DOI: 10.1101/cshperspect.a025676] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Biologic scaffold materials composed of allogeneic or xenogeneic extracellular matrix are commonly used for the repair and functional reconstruction of injured and missing tissues. These naturally occurring bioscaffolds are manufactured by the removal of the cellular content from source tissues while preserving the structural and functional molecular units of the remaining extracellular matrix (ECM). The mechanisms by which these bioscaffolds facilitate constructive remodeling and favorable clinical outcomes include release or creation of effector molecules that recruit endogenous stem/progenitor cells to the site of scaffold placement and modulation of the innate immune response, specifically the activation of an anti-inflammatory macrophage phenotype. The methods by which ECM biologic scaffolds are prepared, the current understanding of in vivo scaffold remodeling, and the associated clinical outcomes are discussed in this article.
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Affiliation(s)
- Alessandra Costa
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219
| | - Juan Diego Naranjo
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219
| | - Ricardo Londono
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219.,School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219.,Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15219.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219
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235
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Human adipose-derived mesenchymal stem cells seeded into a collagen-hydroxyapatite scaffold promote bone augmentation after implantation in the mouse. Sci Rep 2017; 7:7110. [PMID: 28769083 PMCID: PMC5541101 DOI: 10.1038/s41598-017-07672-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/03/2017] [Indexed: 12/29/2022] Open
Abstract
Traumatic injury or surgical excision of diseased bone tissue usually require the reconstruction of large bone defects unable to heal spontaneously, especially in older individuals. This is a big challenge requiring the development of biomaterials mimicking the bone structure and capable of inducing the right commitment of cells seeded within the scaffold. In particular, given their properties and large availability, the human adipose-derived stem cells are considered as the better candidate for autologous cell transplantation. In order to evaluate the regenerative potential of these cells along with an osteoinductive biomaterial, we have used collagen/hydroxyapatite scaffolds to test ectopic bone formation after subcutaneous implantation in mice. The process was analysed both in vivo, by Fluorescent Molecular Tomography (FMT), and ex vivo, to evaluate the formation of bone and vascular structures. The results have shown that the biomaterial could itself be able of promoting differentiation of host cells and bone formation, probably by means of its intrinsic chemical and structural properties, namely the microenvironment. However, when charged with human mesenchymal stem cells, the ectopic bone formation within the scaffold was increased. We believe that these results represent an important advancement in the field of bone physiology, as well as in regenerative medicine.
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236
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Wang T, Lew J, Premkumar J, Poh CL, Win Naing M. Production of recombinant collagen: state of the art and challenges. ENGINEERING BIOLOGY 2017. [DOI: 10.1049/enb.2017.0003] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Tianyi Wang
- Bio‐Manufacturing Programme Singapore Institute of Manufacturing Technology Singapore
| | - Jiewei Lew
- Bio‐Manufacturing Programme Singapore Institute of Manufacturing Technology Singapore
| | - Jayaraman Premkumar
- Department of Biomedical Engineering National University of Singapore Singapore
| | - Chueh Loo Poh
- Department of Biomedical Engineering National University of Singapore Singapore
| | - May Win Naing
- Bio‐Manufacturing Programme Singapore Institute of Manufacturing Technology Singapore
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237
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Drzewiecki KE, Grisham DR, Parmar AS, Nanda V, Shreiber DI. Circular Dichroism Spectroscopy of Collagen Fibrillogenesis: A New Use for an Old Technique. Biophys J 2017; 111:2377-2386. [PMID: 27926839 DOI: 10.1016/j.bpj.2016.10.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/28/2016] [Accepted: 10/19/2016] [Indexed: 01/14/2023] Open
Abstract
Type-I collagen assembles in a stepwise, hierarchic fashion from the folding of the triple helix to the assembly of fibrils into fibers. The mature assembled fibers are crucial for tissue structure and mechanics, cell interactions, and other functions in vivo. Although triple helix folding can be followed with the use of optical methods such as circular dichroism (CD) spectroscopy, fibrillogenesis is typically measured by alternative methods such as turbidity, rheology, and microscopy. Together, these approaches allow for investigation of the mechanical properties and architectures of collagen-based scaffolds and excised tissues. Herein, we demonstrate that CD spectroscopy, a technique that is used primarily to evaluate the secondary structure of proteins, can also be employed to monitor collagen fibrillogenesis. Type-I collagen suspensions demonstrated a strong, negative ellipticity band between 204 and 210 nm under conditions consistent with fibrillogenesis. Deconvolution of CD spectra before, during, and after fibrillogenesis identified a unique fibril spectrum distinct from triple helix and random coil conformations. The ability to monitor multiple states of collagen simultaneously in one experiment using one modality provides a powerful platform for studying this complex assembly process and the effects of other factors, such as collagenases, on fibrillogenesis and degradation.
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Affiliation(s)
- Kathryn E Drzewiecki
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Daniel R Grisham
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Avanish S Parmar
- Department of Physics, Indian Institute of Technology, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Vikas Nanda
- Center for Advanced Biotechnology and Medicine, Department of Biochemistry and Molecular Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - David I Shreiber
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey.
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238
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Włodarczyk-Biegun MK, del Campo A. 3D bioprinting of structural proteins. Biomaterials 2017; 134:180-201. [DOI: 10.1016/j.biomaterials.2017.04.019] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 04/04/2017] [Accepted: 04/12/2017] [Indexed: 12/23/2022]
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239
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Ferrario C, Leggio L, Leone R, Di Benedetto C, Guidetti L, Coccè V, Ascagni M, Bonasoro F, La Porta CAM, Candia Carnevali MD, Sugni M. Marine-derived collagen biomaterials from echinoderm connective tissues. MARINE ENVIRONMENTAL RESEARCH 2017; 128:46-57. [PMID: 27063846 DOI: 10.1016/j.marenvres.2016.03.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 03/19/2016] [Accepted: 03/29/2016] [Indexed: 06/05/2023]
Abstract
The use of marine collagens is a hot topic in the field of tissue engineering. Echinoderms possess unique connective tissues (Mutable Collagenous Tissues, MCTs) which can represent an innovative source of collagen to develop collagen barrier-membranes for Guided Tissue Regeneration (GTR). In the present work we used MCTs from different echinoderm models (sea urchin, starfish and sea cucumber) to produce echinoderm-derived collagen membranes (EDCMs). Commercial membranes for GTR or soluble/reassembled (fibrillar) bovine collagen substrates were used as controls. The three EDCMs were similar among each other in terms of structure and mechanical performances and were much thinner and mechanically more resistant than the commercial membranes. Number of fibroblasts seeded on sea-urchin membranes were comparable to the bovine collagen substrates. Cell morphology on all EDCMs was similar to that of structurally comparable (reassembled) bovine collagen substrates. Overall, echinoderms, and sea urchins particularly, are alternative collagen sources to produce efficient GTR membranes. Sea urchins display a further advantage in terms of eco-sustainability by recycling tissues from food wastes.
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Affiliation(s)
- Cinzia Ferrario
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy.
| | - Livio Leggio
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy.
| | - Roberta Leone
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy; Center for Complexity and Biosystems, University of Milan, Via Celoria, 16, 20133, Milan, Italy.
| | - Cristiano Di Benedetto
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering (BESE), Thuwal, 23955-6900, Saudi Arabia.
| | - Luca Guidetti
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy; Center for Complexity and Biosystems, University of Milan, Via Celoria, 16, 20133, Milan, Italy.
| | - Valentina Coccè
- Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Maxillofacial and Dental Unit, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via Commenda, 10, 20122, Milan, Italy.
| | - Miriam Ascagni
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy.
| | - Francesco Bonasoro
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy; Center for Complexity and Biosystems, University of Milan, Via Celoria, 16, 20133, Milan, Italy.
| | - Caterina A M La Porta
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy; Center for Complexity and Biosystems, University of Milan, Via Celoria, 16, 20133, Milan, Italy.
| | | | - Michela Sugni
- Department of Biosciences, University of Milan, Via Celoria, 26, 20133, Milan, Italy; Center for Complexity and Biosystems, University of Milan, Via Celoria, 16, 20133, Milan, Italy.
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240
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Xiang J, Liu P, Zheng X, Dong D, Fan S, Dong J, Zhang X, Liu X, Wang B, Lv Y. The effect of riboflavin/UVA cross-linking on anti-degeneration and promoting angiogenic capability of decellularized liver matrix. J Biomed Mater Res A 2017; 105:2662-2669. [PMID: 28556592 DOI: 10.1002/jbm.a.36126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/05/2017] [Accepted: 05/23/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Junxi Xiang
- Department of Hepatobiliary Surgery; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Peng Liu
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Xinglong Zheng
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Dinghui Dong
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Shujuan Fan
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
- Department of Neonatology; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - Jian Dong
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Xufeng Zhang
- Department of Hepatobiliary Surgery; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Xuemin Liu
- Department of Hepatobiliary Surgery; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Bo Wang
- Department of Hepatobiliary Surgery; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
| | - Yi Lv
- Department of Hepatobiliary Surgery; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province; Xi'an China
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241
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Preferred M2 Polarization by ASC-Based Hydrogel Accelerated Angiogenesis and Myogenesis in Volumetric Muscle Loss Rats. Stem Cells Int 2017; 2017:2896874. [PMID: 28694827 PMCID: PMC5488492 DOI: 10.1155/2017/2896874] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/28/2017] [Accepted: 03/30/2017] [Indexed: 01/26/2023] Open
Abstract
Volumetric muscle loss (VML) injury resulted from massive muscle defects and diseases for which there are still no effective therapeutic treatments. This study aimed to investigate the effects of rat adipose-derived mesenchymal stem cells (rASCs) and rASCs-conditioned medium- (CM-) based type I collagen hydrogel on macrophage (MP) transition, myogenesis, and vascularization in the rat VML model. Laser Doppler results demonstrated much higher blood flow in the rASC- and CM-based hydrogel groups. qRT-PCR, hematoxylin and eosin, immunofluorescence, and Sirius Red staining manifested that both rASCs and CM-based hydrogel implantation accelerated muscle repair with upregulated angiogenesis and myogenesis, attenuated inflammation while facilitating M2 transition, and decreased the collagen deposition compared with the hydrogel group. In vitro experiments indicated that factors secreted from polarized M2 MPs could accelerate the migration and tube formation capacities of HUVECs. These results suggested that rASCs exerted immunomodulatory effects on MPs which further enhanced the proangiogenic potential on ECs to promote myogenesis and angiogenesis during muscle repair. These fundamental results support further clinical applications of ASCs for muscle loss injury.
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242
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Mc Donald CK, Moriarty P, Varzgalis M, Murphy C. The Top 50 Most Cited Articles in Cartilage Regeneration. Biores Open Access 2017; 6:58-62. [PMID: 28736688 PMCID: PMC5515090 DOI: 10.1089/biores.2017.0006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The aim of this study was to identify and analyze the top 50 most cited articles in cartilage regeneration. The impact of a scientific journal can be gauged by the total number of citations it has accrued. The top 50 most cited articles involving cartilage regeneration represent the most quoted level of evidence among this new subspecialty. This study aims to identify and analyze the 50 most cited articles in cartilage regeneration. The Web of Science™ citation indexing service was utilized to determine the most frequently cited articles published after 1956 containing “cartilage regeneration” in the “topic” or “title.” The 50 most cited articles were included. The number of citations, year of publication, country of article origin, article institution, journal of publication, publication format, and authorship were then calculated for each article. The span of citations ranged from 1287 to 203 citations, with a mean of 361.02 citations per article in question. The articles originated from 11 countries, with the United States contributing 34 articles, followed by Japan with 5 articles. The articles were distributed across 34 high-impact journals. Biomaterials was the journal with the highest number of publications (seven articles) followed by the Journal of Orthopaedic Research (three articles). Of the 50 articles, 2 were clinical observational studies, 47 concerned basic science, and 1 was review article. The most cited articles involving cartilage regeneration are detected in both experimental and clinical research fields. The high ratio of basic science to clinical articles reflects the infancy of this relatively new specialty and that further clinical research is required in this area.
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Affiliation(s)
- Ciaran K Mc Donald
- Department of Trauma and Orthopaedics, Galway University Hospital, Galway, Ireland
| | - Peter Moriarty
- Department of Trauma and Orthopaedics, Galway University Hospital, Galway, Ireland
| | - Manvydas Varzgalis
- Department of Breast & Endocrine Surgery, Galway University Hospital, Galway, Ireland
| | - Colin Murphy
- Department of Trauma and Orthopaedics, Galway University Hospital, Galway, Ireland
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243
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Ahmadi M, Seyedjafari E, Zargar SJ, Birhanu G, Zandi-Karimi A, Beiki B, Tuzlakoglu K. Osteogenic differentiation of mesenchymal stem cells cultured on PLLA scaffold coated with Wharton's Jelly. EXCLI JOURNAL 2017; 16:785-794. [PMID: 28827995 PMCID: PMC5547391 DOI: 10.17179/excli2016-741] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 05/14/2017] [Indexed: 12/31/2022]
Abstract
Poly-L-lactic acid (PLLA) electrospun nanofiber scaffold is one of the most commonly used synthetic polymer scaffolds for bone tissue engineering application. However, PLLA is hydrophobic in nature, hence does not maintain proper cell adhesion and tissue formation, moreover, it cannot provide the osteo-inductive environment due to inappropriate surface characteristic and the lack of surface motives participating in the first cellular events. To modify these shortcomings different approaches have been used, among those the most commonly used one is coating of the surface of the electrospun nanofiber with natural materials. In this work Wharton's jelly (WJ), a tissue which surrounds the umbilical cord vessels, reaches in high amounts of extracellular matrix (ECM) components mainly; collagen, hyaluronic acid and several sulphated glycosaminoglycans (GAGs) were used to cover the surface of electrospun PLLA nanofiber scaffolds. The surface morphology of the nanofiber scaffold was evaluated via scanning electron microscope, and the in vitro osteogenic differentiation potential was determined by MTT assay and common osteogenic marker tests such as alkaline phosphatase (ALP) activity and calcium deposition tests. Coating of WJ could not change the surface morphology and diameter of the nanofibers. However, WJ-PLLA scaffolds showed higher proliferation of human mesenchymal stem cells (MSC) than tissue culture plate (TCP) and pristine PLLA scaffolds, moreover, WJ-PPLA scaffold demonstrated significant alkaline phosphatase activity and calcium mineralization than either TCP or PLLA nanofiber scaffolds.
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Affiliation(s)
- Marziehsadat Ahmadi
- Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Iran
| | - Ehsan Seyedjafari
- Department of Biotechnology, College of Science, University of Tehran, Iran
| | - Seyed Jalal Zargar
- Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Iran
| | - Gebremariam Birhanu
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, International Campus (TUMS-IC), Tehran, Iran.,School of Pharmacy, College of Health Sciences, Addis Ababa University, Ethiopia
| | - Ali Zandi-Karimi
- Department of Biotechnology, College of Science, University of Tehran, Iran
| | - Bahareh Beiki
- Department of Biotechnology, College of Science, University of Tehran, Iran
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244
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Wang W, Tao H, Zhao Y, Sun X, Tang J, Selomulya C, Tang J, Chen T, Wang Y, Shu M, Wei L, Yi G, Zhou J, Wei L, Wang C, Kong B. Implantable and Biodegradable Macroporous Iron Oxide Frameworks for Efficient Regeneration and Repair of Infracted Heart. Am J Cancer Res 2017. [PMID: 28638482 PMCID: PMC5479283 DOI: 10.7150/thno.16866] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The construction, characterization and surgical application of a multilayered iron oxide-based macroporous composite framework were reported in this study. The framework consisted of a highly porous iron oxide core, a gelatin-based hydrogel intermediary layer and a matrigel outer cover, which conferred a multitude of desirable properties including excellent biocompatibility, improved mechanical strength and controlled biodegradability. The large pore sizes and high extent of pore interconnectivity of the framework stimulated robust neovascularization and resulted in substantially better cell viability and proliferation as a result of improved transport efficiency for oxygen and nutrients. In addition, rat models with myocardial infraction showed sustained heart tissue regeneration over the infract region and significant improvement of cardiac functions following the surgical implantation of the framework. These results demonstrated that the current framework might hold great potential for cardiac repair in patients with myocardial infraction.
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245
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Núñez-Toldrà R, Martínez-Sarrà E, Gil-Recio C, Carrasco MÁ, Al Madhoun A, Montori S, Atari M. Dental pulp pluripotent-like stem cells (DPPSC), a new stem cell population with chromosomal stability and osteogenic capacity for biomaterials evaluation. BMC Cell Biol 2017; 18:21. [PMID: 28427322 PMCID: PMC5399345 DOI: 10.1186/s12860-017-0137-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 04/12/2017] [Indexed: 12/31/2022] Open
Abstract
Background Biomaterials are widely used to regenerate or substitute bone tissue. In order to evaluate their potential use for clinical applications, these need to be tested and evaluated in vitro with cell culture models. Frequently, immortalized osteoblastic cell lines are used in these studies. However, their uncontrolled proliferation rate, phenotypic changes or aberrations in mitotic processes limits their use in long-term investigations. Recently, we described a new pluripotent-like subpopulation of dental pulp stem cells derived from the third molars (DPPSC) that shows genetic stability and shares some pluripotent characteristics with embryonic stem cells. In this study we aim to describe the use of DPPSC to test biomaterials, since we believe that the biomaterial cues will be more critical in order to enhance the differentiation of pluripotent stem cells. Methods The capacity of DPPSC to differentiate into osteogenic lineage was compared with human sarcoma osteogenic cell line (SAOS-2). Collagen and titanium were used to assess the cell behavior in commonly used biomaterials. The analyses were performed by flow cytometry, alkaline phosphatase and mineralization stains, RT-PCR, immunohistochemistry, scanning electron microscopy, Western blot and enzymatic activity. Moreover, the genetic stability was evaluated and compared before and after differentiation by short-comparative genomic hybridization (sCGH). Results DPPSC showed excellent differentiation into osteogenic lineages expressing bone-related markers similar to SAOS-2. When cells were cultured on biomaterials, DPPSC showed higher initial adhesion levels. Nevertheless, their osteogenic differentiation showed similar trend among both cell types. Interestingly, only DPPSC maintained a normal chromosomal dosage before and after differentiation on 2D monolayer and on biomaterials. Conclusions Taken together, these results promote the use of DPPSC as a new pluripotent-like cell model to evaluate the biocompatibility and the differentiation capacity of biomaterials used in bone regeneration. Electronic supplementary material The online version of this article (doi:10.1186/s12860-017-0137-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Raquel Núñez-Toldrà
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | - Ester Martínez-Sarrà
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | - Carlos Gil-Recio
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | | | | | - Sheyla Montori
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | - Maher Atari
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain. .,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain. .,Surgery and Oral Implantology Department, Universitat Internacional de Catalunya, Barcelona, Spain.
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246
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Xu L, Ding L, Wang L, Cao Y, Zhu H, Lu J, Li X, Song T, Hu Y, Dai J. Umbilical cord-derived mesenchymal stem cells on scaffolds facilitate collagen degradation via upregulation of MMP-9 in rat uterine scars. Stem Cell Res Ther 2017; 8:84. [PMID: 28420433 PMCID: PMC5395893 DOI: 10.1186/s13287-017-0535-0] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 03/02/2017] [Accepted: 03/14/2017] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Severe injuries of the uterus may trigger uterine scar formation, ultimately leading to infertility or obstetrical complications. To date, few methods have adequately solved the problem of collagen deposition in uterine scars. Umbilical cord-derived mesenchymal stem cells (UC-MSCs) have shown great promise in clinical applications. The objective of this study was to investigate the effect of a scaffold/UC-MSCs construct on collagen degradation and functional regeneration in rat uterine scars following full-thickness excision of uterine walls. METHODS In order to establish a rat model of uterine scars, the uterine wall of approximately 1.0 cm in length and 0.5 cm in width (one-third of the uterine circumference) was excised from each uterine horn. A total of 128 scarred uterine horns from 64 rats were randomly assigned to four groups, including a PBS group (n = 32 uterine horns), scaffold group (n = 32 uterine horns), UC-MSCs group (n = 32 uterine horns) and scaffold/UC-MSCs group (n = 32 uterine horns) to investigate the effect of different treatments on the structure and function of uterine scars. PBS, degradable collagen fibres, UC-MSCs or UC-MSCs mixed with gelatinous degradable collagen fibres were injected into four pre-marked points surrounding each uterine scar, respectively. At days 30 and 60 post-transplantation, a subset of rats (n = 8 uterine horns) from each group was euthanized and serial sections of uterine tissues containing the operative region were prepared. Haematoxylin-eosin staining, Masson's trichrome staining, and immunohistochemical staining for MMP-2, MMP-9, α-SMA and vWF were performed. Finally, another subset of rats (n = 16 uterine horns) from each group was mated with male rats at day 60 post-transplantation and euthanized 18 days after the presence of vaginal plugs to check numbers, sizes and weights of fetuses, as well as sites of implantation. RESULTS The scaffold/UC-MSCs group exhibited obvious collagen degradation compared with the other three groups. At day 60 post-transplantation, the number of MMP-9-positive cells in the scaffold/UC-MSCs group (25.96 ± 3.63) was significantly higher than that in the PBS group (8.19 ± 1.61, P < 0.01), the scaffold group (7.25 ± 2.17, P < 0.01) and the UC-MSCs group (8.31 ± 2.77, P < 0.01). The pregnancy rate in the scaffold/UC-MSCs group (10/16) was also significantly higher than that in the PBS group (2/16, P < 0.017), the scaffold group (1/16, P < 0.017) and the UC-MSCs group (3/16, P < 0.017). CONCLUSIONS The scaffold/UC-MSCs system facilitated collagen degradation in uterine scars via upregulation of MMP-9, which was secreted by transplanted UC-MSCs, and promoted regeneration of the endometrium, myometrium and blood vessels in uterine scars. Furthermore, the scaffold/UC-MSCs-treated uterine scars showed nearly complete restoration of receptive fertility.
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Affiliation(s)
- Lu Xu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Lijun Ding
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Lei Wang
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Yun Cao
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Hui Zhu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Jingjie Lu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Xin’an Li
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Tianran Song
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Yali Hu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Jianwu Dai
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing, 100190 China
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247
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Beiki B, Zeynali B, Seyedjafari E. Fabrication of a three dimensional spongy scaffold using human Wharton's jelly derived extra cellular matrix for wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:627-638. [PMID: 28576031 DOI: 10.1016/j.msec.2017.04.074] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 03/12/2017] [Accepted: 04/13/2017] [Indexed: 12/20/2022]
Abstract
The Wharton's jelly (WJ) contains significant amounts of extracellular matrix (ECM) components and rich source of endogenous growth factors. In this study, we designed a new biomimetic spongy scaffold from decellularized WJ-derived ECM and used it as a skin substitute. Histological analysis and biochemical assays showed that bio-active molecules preserved in the fabricated scaffolds and that the scaffolds have highly interconnected porous structure. Cytotoxicity and mechanical evaluation of the scaffold indicated that it is non-toxic and has appropriate mechanical properties. MTT assay, SEM and histological analysis of human fibroblast, seeded on the scaffolds, confirmed cellular viability, attachment, penetration and proliferation. The effectiveness of WJ-derived scaffolds in the regeneration of full-thickness wound was assessed through an in vivo experiment. Our results demonstrated that the scaffolds were well integrated into the mouse tissue and absorbed the exudates after one week. Unlike the controls, in WJ group there were not only complete wound closing and disappearance of the scab, but also complete reepithelialization, newly generated epidermal layers and appendages after 12days of implantation. Taken together, our results indicate that WJ-derived scaffolds are able to improve attachment, penetration and growth of the fibroblast cells and speed up the healing processes, which would offer a proper skin graft for wound healing.
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Affiliation(s)
- Bahareh Beiki
- Developmental Biology Laboratory, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Bahman Zeynali
- Developmental Biology Laboratory, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Ehsan Seyedjafari
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran.
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248
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Yeo MG, Kim GH. A cell-printing approach for obtaining hASC-laden scaffolds by using a collagen/polyphenol bioink. Biofabrication 2017; 9:025004. [PMID: 28402968 DOI: 10.1088/1758-5090/aa6997] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In the cell-printing process, bioink has been considered as an extremely important component for successful fabrication of macroscale cell-laden structures. Bioink should be non-toxic, biocompatible, and printable. To date, alginate has been widely used as a whole or partial component of bioink because it is non-toxic to embedded cells and even it can provide good printability with rapid gelation under calcium ions. However, alginate bioinks do not possess cell-activating ability. To overcome the shortcomings of alginate-based bioinks, a new collagen bioink, which was mixed with human adipose stem cells (hASCs) and crosslinked with a polyphenol (tannic acid), was proposed. The feasibility of the bioink was demonstrated using several in vitro assessments for comparison of the macroscale porous cell-laden collagen/polyphenol structure containing the hASCs with the conventional alginate-based cell-laden structure. The levels of the metabolic activity, including the cell viability and cell proliferation, of the cell-laden collagen structure were significantly higher than those of the control (alginate-based cell-laden structure). The results show that the newly designed bioink and cell-laden structure are potentially new outstanding components for regeneration of various tissues.
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Affiliation(s)
- Myung Gu Yeo
- Department of Biomechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University (SKKU), Suwon, Republic of Korea
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249
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Celikkin N, Rinoldi C, Costantini M, Trombetta M, Rainer A, Święszkowski W. Naturally derived proteins and glycosaminoglycan scaffolds for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:1277-1299. [PMID: 28575966 DOI: 10.1016/j.msec.2017.04.016] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 04/02/2017] [Accepted: 04/03/2017] [Indexed: 12/25/2022]
Abstract
Tissue engineering (TE) aims to mimic the complex environment where organogenesis takes place using advanced materials to recapitulate the tissue niche. Cells, three-dimensional scaffolds and signaling factors are the three main and essential components of TE. Over the years, materials and processes have become more and more sophisticated, allowing researchers to precisely tailor the final chemical, mechanical, structural and biological features of the designed scaffolds. In this review, we will pose the attention on two specific classes of naturally derived polymers: fibrous proteins and glycosaminoglycans (GAGs). These materials hold great promise for advances in the field of regenerative medicine as i) they generally undergo a fast remodeling in vivo favoring neovascularization and functional cells organization and ii) they elicit a negligible immune reaction preventing severe inflammatory response, both representing critical requirements for a successful integration of engineered scaffolds with the host tissue. We will discuss the recent achievements attained in the field of regenerative medicine by using proteins and GAGs, their merits and disadvantages and the ongoing challenges to move the current concepts to practical clinical application.
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Affiliation(s)
- Nehar Celikkin
- Warsaw University of Technology, Faculty of Material Science and Engineering, 141 Woloska str., 02-507 Warsaw, Poland
| | - Chiara Rinoldi
- Warsaw University of Technology, Faculty of Material Science and Engineering, 141 Woloska str., 02-507 Warsaw, Poland
| | - Marco Costantini
- Tissue Engineering Unit, Department of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Marcella Trombetta
- Tissue Engineering Unit, Department of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Alberto Rainer
- Tissue Engineering Unit, Department of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Wojciech Święszkowski
- Warsaw University of Technology, Faculty of Material Science and Engineering, 141 Woloska str., 02-507 Warsaw, Poland.
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250
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Pollot BE, Rathbone CR, Wenke JC, Guda T. Natural polymeric hydrogel evaluation for skeletal muscle tissue engineering. J Biomed Mater Res B Appl Biomater 2017; 106:672-679. [PMID: 28306190 DOI: 10.1002/jbm.b.33859] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/15/2016] [Accepted: 01/26/2017] [Indexed: 11/10/2022]
Abstract
Although skeletal muscle has a remarkable ability to repair/regenerate after most types of injuries, there is limited regeneration after volumetric muscle loss (VML). A number of scaffold materials have been used in the development of grafts to treat VML, however, there is still a need to better understand the most appropriate material with regards to its ability to maintain mechanical integrity while also supporting myogenesis. Five commonly used natural polymeric materials (Collagen I, Agarose, Alginate, Fibrin, and Collagen Chitosan) used in skeletal muscle tissue engineering grafts were evaluated for their mechanical properties and myogenic capacity. Rheological properties, water absorption rates, degradation stability, tensile characteristics, and the ability to support in vitro myogenesis were compared in all five materials. Collagen, Collagen Chitosan, and Fibrin demonstrated high elasticity and 100% stretch without failure, Agarose was the most brittle (20% max stretch), and Alginate demonstrated poor handleabilty. While Collagen was supportive of myogenesis, overall, Fibrin demonstrated the highest myogenic potential as indicated by the earliest and highest increases in myogenin and myosin heavy chain mRNA in satellite cells along with the most extensive myotube development as evaluated with immunohistochemistry. The findings herein support the notion that under the conditions used in this study, Fibrin is the most suitable scaffold for the development of scaffolds for skeletal muscle tissue engineering. Future studies are required to determine whether the differences in mechanical properties and myogenic potential observed in vitro in the current study translate to better skeletal muscle development in a VML injury model. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 672-679, 2018.
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Affiliation(s)
- Beth E Pollot
- Department of Biomedical Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas, 78249.,Extremity Trauma & Regenerative Medicine Task Area, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, 78234
| | - Christopher R Rathbone
- Extremity Trauma & Regenerative Medicine Task Area, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, 78234
| | - Joseph C Wenke
- Extremity Trauma & Regenerative Medicine Task Area, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, 78234
| | - Teja Guda
- Department of Biomedical Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas, 78249
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