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Nascimento MHMD, Lombello CB. Hidrogéis a base de ácido hialurônico e quitosana para engenharia de tecido cartilaginoso. POLIMEROS 2016. [DOI: 10.1590/0104-1428.1987] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Resumo A Engenharia de Tecidos envolve o desenvolvimento de novos materiais ou dispositivos capazes de interações específicas com os tecidos biológicos, buscando a utilização de materiais biocompatíveis que devem servir como arcabouço para o crescimento de células in vitro, organizando e desenvolvendo o tecido que posteriormente será implantado no paciente. Uma variedade de arcabouços como hidrogéis poliméricos, sintéticos e naturais, têm sido investigados para a expansão de condrócitos in vitro, visando o reparo da cartilagem lesionada. Um hidrogel de interesse particular na regeneração de cartilagem é o ácido hialurónico (AH). Trata-se de um biopolímero atraente para a fabricação de arcabouços artificiais para Engenharia de Tecidos por ser biocompatível e biodegradável. A biocompatibilidade do AH deve-se ao fato de estar presente na matriz extracelular nativa, deste modo, cria-se um ambiente propício que facilita a adesão, proliferação e diferenciação celular, além da existência de sinalização celular específica, o que contribui para a regeneração do tecido. O uso de hidrogel composto de ácido hialurónico e quitosana (QUI) também tem sido investigado em aplicações de Engenharia de Tecidos de cartilagem, com resultados promissores. Baseando-se nestas informações, o objetivo este trabalho foi investigar as alternativas disponíveis para regeneração tecidual da cartilagem e conhecer mais detalhadamente as relações entre células e biomateriais.
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Law JX, Liau LL, Aminuddin BS, Ruszymah BHI. Tissue-engineered trachea: A review. Int J Pediatr Otorhinolaryngol 2016; 91:55-63. [PMID: 27863642 DOI: 10.1016/j.ijporl.2016.10.012] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/09/2016] [Accepted: 10/12/2016] [Indexed: 01/23/2023]
Abstract
Tracheal replacement is performed after resection of a portion of the trachea that was impossible to reconnect via direct anastomosis. A tissue-engineered trachea is one of the available options that offer many advantages compared to other types of graft. Fabrication of a functional tissue-engineered trachea for grafting is very challenging, as it is a complex organ with important components, including cartilage, epithelium and vasculature. A number of studies have been reported on the preparation of a graftable trachea. A laterally rigid but longitudinally flexible hollow cylindrical scaffold which supports cartilage and epithelial tissue formation is the key element. The scaffold can be prepared via decellularization of an allograft or fabricated using biodegradable or non-biodegradable biomaterials. Commonly, the scaffold is seeded with chondrocytes and epithelial cells at the outer and luminal surfaces, respectively, to hasten tissue formation and improve functionality. To date, several clinical trials of tracheal replacement with tissue-engineered trachea have been performed. This article reviews the formation of cartilage tissue, epithelium and neovascularization of tissue-engineered trachea, together with the obstacles, possible solutions and future. Furthermore, the role of the bioreactor for in vitro tracheal graft formation and recently reported clinical applications of tracheal graft were also discussed. Generally, although encouraging results have been achieved, however, some obstacles remain to be resolved before the tissue-engineered trachea can be widely used in clinical settings.
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Affiliation(s)
- Jia Xian Law
- Tissue Engineering Centre, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Ling Ling Liau
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Bin Saim Aminuddin
- Tissue Engineering Centre, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, 56000, Cheras, Kuala Lumpur, Malaysia; Ear, Nose & Throat Consultant Clinic, Ampang Puteri Specialist Hospital, 68000, Ampang, Selangor, Malaysia
| | - Bt Hj Idrus Ruszymah
- Tissue Engineering Centre, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, 56000, Cheras, Kuala Lumpur, Malaysia; Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, 56000, Cheras, Kuala Lumpur, Malaysia.
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Gogoi S, Maji S, Mishra D, Devi KSP, Maiti TK, Karak N. Nano-Bio Engineered Carbon Dot-Peptide Functionalized Water Dispersible Hyperbranched Polyurethane for Bone Tissue Regeneration. Macromol Biosci 2016; 17. [PMID: 27683231 DOI: 10.1002/mabi.201600271] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 08/24/2016] [Indexed: 01/18/2023]
Abstract
The present study delves into a combined bio-nano-macromolecular approach for bone tissue engineering. This approach relies on the properties of an ideal scaffold material imbued with all the chemical premises required for fostering cellular growth and differentiation. A tannic acid based water dispersible hyperbranched polyurethane is fabricated with bio-nanohybrids of carbon dot and four different peptides (viz. SVVYGLR, PRGDSGYRGDS, IPP, and CGGKVGKACCVPTKLSPISVLYK) to impart target specific in vivo bone healing ability. This polymeric bio-nanocomposite is blended with 10 wt% of gelatin and examined as a non-invasive delivery vehicle. In vitro assessment of the developed polymeric system reveals good osteoblast adhesion, proliferation, and differentiation. Aided by this panel of peptides, the polymeric bio-nanocomposite exhibits in vivo ectopic bone formation ability. The study on in vivo mineralization and vascularization reveals the occurrence of calcification and blood vessel formation. Thus, the study demonstrates carbon dot/peptide functionalized hyperbranched polyurethane gel for bone tissue engineering application.
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Affiliation(s)
- Satyabrat Gogoi
- Advanced Polymer and Nanomaterial Laboratory, Department of Chemical Sciences, Tezpur University, Napaam, 784028, India
| | - Somnath Maji
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, 721302, India
| | - Debasish Mishra
- School of Bio-Sciences and Technology, Vellore Institute of Technology University, Vellore, 632014, India
| | - K Sanjana P Devi
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, 721302, India
| | - Tapas Kumar Maiti
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, 721302, India
| | - Niranjan Karak
- Advanced Polymer and Nanomaterial Laboratory, Department of Chemical Sciences, Tezpur University, Napaam, 784028, India
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Law JX, Musa F, Ruszymah BHI, El Haj AJ, Yang Y. A comparative study of skin cell activities in collagen and fibrin constructs. Med Eng Phys 2016; 38:854-61. [DOI: 10.1016/j.medengphy.2016.05.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 02/24/2016] [Accepted: 05/18/2016] [Indexed: 11/26/2022]
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56
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Hu K, Lv Q, Cui FZ, Feng QL, Kong XD, Wang HL, Huang LY, Li T. Biocompatible Fibroin Blended Films with Recombinant Human-like Collagen for Hepatic Tissue Engineering. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911506060455] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Recombinant human-like collagen (RHLC) was blended with fibroin to prepare a novel biocompatible film as a scaffold material for hepatic tissue engineering applications. Solution blending was used to incorporate RHLC with silk fibroin to enhance the blend films biocompatibility and hydrophilicity while maintaining elasticity. FTIR and XRD analysis indicated that hydrogen bonds had formed between fibroin and RHLC, while SEM microscopy data confirmed that homogeneous microstructures were still retained after the introduction of RHLC with fibroin. Contact angle measurements indicated that the hydrophilicity of the fibroin/RHLC films was greater after RHLC was added. The elongation at break in the wet state was not markedly changed after blending the recombinant human-like collagen, which implied that flexibility was maintained. The proliferation and viability of the cell cultures on fibroin/RHLC films were significantly enhanced compared to pure fibroin films or tissue culture plates.
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Affiliation(s)
- K. Hu
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Q. Lv
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - F. Z. Cui
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China,
| | - Q. L. Feng
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - X. D. Kong
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - H. L. Wang
- Beijing Institute of Biotechnology, Beijing 100071, P.R. China
| | - L. Y. Huang
- Beijing Institute of Biotechnology, Beijing 100071, P.R. China
| | - T. Li
- Beijing Institute of Biotechnology, Beijing 100071, P.R. China
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Barczak W, Golusiński P, Luczewski L, Suchorska WM, Masternak MM, Golusiński W. The importance of stem cell engineering in head and neck oncology. Biotechnol Lett 2016; 38:1665-72. [PMID: 27341837 PMCID: PMC5010595 DOI: 10.1007/s10529-016-2163-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 06/16/2016] [Indexed: 02/03/2023]
Abstract
Head and neck squamous cell carcinoma is the sixth leading cause of cancer worldwide. The most common risk factors are carcinogens (tobacco, alcohol), and infection of the human papilloma virus. Surgery is still considered as the treatment of choice in case of head and neck cancer, followed by a reconstructive surgery to enhance the quality of life in the patients. However, the widespread use of artificial implants does not provide appropriate physiological activities and often cannot act as a long-term solution for the patients. Here we review the applicability of multiple stem cell types for tissue engineering of cartilage, trachea, vocal folds and nerves for head and neck injuries. The ability of the cells to self-renew and maintain their pluripotency state makes them an attractive tool in tissue engineering.
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Affiliation(s)
- Wojciech Barczak
- Department of Head and Neck Surgery, The Greater Poland Cancer Centre, Poznań University of Medical Sciences, Garbary 15 Str., 61-866, Poznan, Poland.,Radiobiology Lab, Department of Medical Physics, The Greater Poland Cancer Centre, Garbary 15 Str., 61-866, Poznan, Poland
| | - Pawel Golusiński
- Department of Head and Neck Surgery, The Greater Poland Cancer Centre, Poznań University of Medical Sciences, Garbary 15 Str., 61-866, Poznan, Poland
| | - Lukasz Luczewski
- Department of Head and Neck Surgery, The Greater Poland Cancer Centre, Poznań University of Medical Sciences, Garbary 15 Str., 61-866, Poznan, Poland
| | - Wiktoria M Suchorska
- Radiobiology Lab, Department of Medical Physics, The Greater Poland Cancer Centre, Garbary 15 Str., 61-866, Poznan, Poland. .,Department of Electroradiology, Poznan University of Medical Sciences, Garbary 15 Str., 61-866, Poznan, Poland.
| | - Michal M Masternak
- Department of Head and Neck Surgery, The Greater Poland Cancer Centre, Poznań University of Medical Sciences, Garbary 15 Str., 61-866, Poznan, Poland.,Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA
| | - Wojciech Golusiński
- Department of Head and Neck Surgery, The Greater Poland Cancer Centre, Poznań University of Medical Sciences, Garbary 15 Str., 61-866, Poznan, Poland
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Saber-Samandari S, Saber-Samandari S, Kiyazar S, Aghazadeh J, Sadeghi A. In vitro evaluation for apatite-forming ability of cellulose-based nanocomposite scaffolds for bone tissue engineering. Int J Biol Macromol 2016; 86:434-42. [DOI: 10.1016/j.ijbiomac.2016.01.102] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/23/2016] [Accepted: 01/27/2016] [Indexed: 02/02/2023]
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Negahi Shirazi A, Chrzanowski W, Khademhosseini A, Dehghani F. Anterior Cruciate Ligament: Structure, Injuries and Regenerative Treatments. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 881:161-86. [PMID: 26545750 DOI: 10.1007/978-3-319-22345-2_10] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Anterior cruciate ligament (ACL) is one of the most vulnerable ligaments of the knee. ACL impairment results in episodic instability, chondral and meniscal injury and early osteoarthritis. The poor self-healing capacity of ACL makes surgical treatment inevitable. Current ACL reconstructions include a substitution of torn ACL via biological grafts such as autograft, allograft. This review provides an insight of ACL structure, orientation and properties followed by comparing the performance of various constructs that have been used for ACL replacement. New approaches, undertaken to induce ACL regeneration and fabricate biomimetic scaffolds, are also discussed.
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Affiliation(s)
- Ali Negahi Shirazi
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | | | - Ali Khademhosseini
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Fariba Dehghani
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, NSW, 2006, Australia. .,Department of Bioengineering, University of Sydney, Sydney, NSW, Australia.
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60
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Saravanan S, Leena RS, Selvamurugan N. Chitosan based biocomposite scaffolds for bone tissue engineering. Int J Biol Macromol 2016; 93:1354-1365. [PMID: 26845481 DOI: 10.1016/j.ijbiomac.2016.01.112] [Citation(s) in RCA: 210] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 01/27/2016] [Accepted: 01/29/2016] [Indexed: 12/18/2022]
Abstract
The clinical demand for scaffolds and the diversity of available polymers provide freedom in the fabrication of scaffolds to achieve successful progress in bone tissue engineering (BTE). Chitosan (CS) has drawn much of the attention in recent years for its use as graft material either as alone or in a combination with other materials in BTE. The scaffolds should possess a number of properties like porosity, biocompatibility, water retention, protein adsorption, mechanical strength, biomineralization and biodegradability suited for BTE applications. In this review, CS and its properties, and the role of CS along with other polymeric and ceramic materials as scaffolds for bone tissue repair applications are highlighted.
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Affiliation(s)
- S Saravanan
- Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur, Tamil Nadu, India
| | - R S Leena
- Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur, Tamil Nadu, India.
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61
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Yang X, Liu J, Xu Y, Gu Z, Xu Y, Li L, Yu X. Effects of pH on the alginate dialdehyde (ADA)-crosslinking of natural biological tissues and in vitro study of the endothelial cell compatibility of ADA-crosslinked biological tissues. RSC Adv 2016. [DOI: 10.1039/c5ra23237f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Investigating the optimal pH-environment for ADA fixation and the HUVECs compatibility of the ADA-fixed biological vascular scaffolds.
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Affiliation(s)
- Xu Yang
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
| | - Jingwang Liu
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
| | - Yuanwei Xu
- West China School of Medicine
- Sichuan University
- Chengdu
- P.R. China
| | - Zhipeng Gu
- Department of Neurosurgery
- West China Hospital
- Sichuan University
- Chengdu 610065
- P.R. China
| | - Yuanting Xu
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
| | - Li Li
- Department of Oncology
- Chengdu 610021
- P.R. China
| | - Xixun Yu
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
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62
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Gogoi S, Kumar M, Mandal BB, Karak N. A renewable resource based carbon dot decorated hydroxyapatite nanohybrid and its fabrication with waterborne hyperbranched polyurethane for bone tissue engineering. RSC Adv 2016. [DOI: 10.1039/c6ra02341j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Carbon dot decorated hydroxyapatite/water borne hyperbranched polyurethane nanocomposite.
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Affiliation(s)
- Satyabrat Gogoi
- Advanced Polymer & Nanomaterial Laboratory
- Center for Polymer Science & Technology
- Department of Chemical Sciences
- Tezpur University
- India
| | - Manishekhar Kumar
- Biomaterial & Tissue Engineering Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology
- Guwahati
- India
| | - Biman B. Mandal
- Biomaterial & Tissue Engineering Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology
- Guwahati
- India
| | - Niranjan Karak
- Advanced Polymer & Nanomaterial Laboratory
- Center for Polymer Science & Technology
- Department of Chemical Sciences
- Tezpur University
- India
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Integrative Utilization of Microenvironments, Biomaterials and Computational Techniques for Advanced Tissue Engineering. J Biotechnol 2015; 212:71-89. [DOI: 10.1016/j.jbiotec.2015.08.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 08/02/2015] [Accepted: 08/11/2015] [Indexed: 01/13/2023]
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Feng Y, Wang W. In vivo confocal microscopic observation of lamellar corneal transplantation in the rabbit using xenogenic acellular corneal scaffolds as a substitute. Chin Med J (Engl) 2015; 128:933-40. [PMID: 25836615 PMCID: PMC4834011 DOI: 10.4103/0366-6999.154301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND The limiting factor to corneal transplantation is the availability of donors. Research has suggested that xenogenic acellular corneal scaffolds (XACS) may be a possible alternative to transplantation. This study aimed to investigate the viability of performing lamellar corneal transplantation (LCT) in rabbits using canine XACS. METHODS Fresh dog corneas were decellularized by serial digestion, and LCT was performed on rabbit eyes using xenogeneic decellularized corneal matrix. Cellular and morphological changes were observed by slit-lamp, light, and scanning electron microscopy at 7, 30 and 90 days postoperatively. Immunocytochemical staining for specific markers such as keratin 3, vimentin and MUC5AC, was used to identify cells in the graft. RESULTS Decellularized xenogenic corneal matrix remained transparent for about 1-month after LCT. The recipient cells were able to survive and proliferate into the grafts. Three months after transplantation, grafts had merged with host tissue, and graft epithelialization and vascularization had occurred. Corneal nerve fibers were able to grow into the graft in rabbits transplanted with XACS. CONCLUSIONS Xenogenic acellular corneal scaffolds can maintain the transparency of corneal grafts about 1-month and permit growth of cells and nerve fibers, and is, therefore, a potential substitute or carrier for a replacement cornea.
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Affiliation(s)
| | - Wei Wang
- Department of Ophthalmology, Peking University Third Hospital, Peking University Eye Center, Beijing 100191, China
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65
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Bottagisio M, Lovati AB, Lopa S, Moretti M. Osteogenic Differentiation of Human and Ovine Bone Marrow Stromal Cells in response to β-Glycerophosphate and Monosodium Phosphate. Cell Reprogram 2015; 17:235-42. [PMID: 26168053 DOI: 10.1089/cell.2014.0105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Bone defects are severe burdens in clinics, and thus cell therapy offers an alternative strategy exploiting the features of bone marrow stromal cells (BMSCs). Sheep are a suitable orthopedic preclinical model for similarities with humans. This study compares the influence of two phosphate sources combined with bone morphogenetic protein-2 (BMP-2) on the osteogenic potential of human and ovine BMSCs. β-Glycerophosphate (β-GlyP) and monosodium phosphate (NaH2PO4) were used as organic and inorganic phosphate sources. Osteogenic differentiation of the BMSCs was assessed by calcified matrix, alkaline phosphatase (ALP) activity, and gene expression analysis. A higher calcified matrix deposition was detected in BMSCs cultured with NaH2PO4. Although no significant differences were detected among media for human BMSCs, β-GlyP with or without BMP-2 determined a positive trend in ALP levels compared to NaH2PO4. In contrast, NaH2PO4 had a positive effect on ALP levels in ovine BMSCs. β-GlyP better supported the expression of COL1A1 in human BMSCs, whereas all media enhanced RUNX2 and SPARC expression. Ovine BMSCs responded poorly to any media for RUNX2, COL1A1, and SPARC expression. NaH2PO4 improved calcified matrix deposition without upregulating the transcriptional expression of osteogenic markers. A further optimization of differentiation protocols needs to be performed to translate the procedures from preclinical to clinical models.
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Affiliation(s)
- Marta Bottagisio
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
| | - Arianna B Lovati
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
| | - Silvia Lopa
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
| | - Matteo Moretti
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
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Cox SC, Thornby JA, Gibbons GJ, Williams MA, Mallick KK. 3D printing of porous hydroxyapatite scaffolds intended for use in bone tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 47:237-47. [DOI: 10.1016/j.msec.2014.11.024] [Citation(s) in RCA: 322] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/15/2014] [Accepted: 11/06/2014] [Indexed: 11/26/2022]
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Padmanabhan J, Kyriakides TR. Nanomaterials, inflammation, and tissue engineering. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:355-70. [PMID: 25421333 DOI: 10.1002/wnan.1320] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 08/12/2014] [Accepted: 10/11/2014] [Indexed: 01/30/2023]
Abstract
Nanomaterials exhibit unique properties that are absent in the bulk material because decreasing material size leads to an exponential increase in surface area, surface area to volume ratio, and effective stiffness, resulting in altered physiochemical properties. Diverse categories of nanomaterials such as nanoparticles, nanoporous scaffolds, nanopatterned surfaces, nanofibers, and carbon nanotubes can be generated using advanced fabrication and processing techniques. These materials are being increasingly incorporated in tissue engineering scaffolds to facilitate the development of biomimetic substitutes to replace damaged tissues and organs. Long-term success of nanomaterials in tissue engineering is contingent upon the inflammatory responses they elicit in vivo. This review seeks to summarize the recent developments in our understanding of biochemical and biophysical attributes of nanomaterials and the inflammatory responses they elicit, with a focus on strategies for nanomaterial design in tissue engineering applications.
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Affiliation(s)
- Jagannath Padmanabhan
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA; Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, USA
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Abstract
Heart failure is a complex clinical syndrome responsible for high morbidity and mortality in the world. Despite advances in the management of heart failure, the prognosis of these patients remains poor and there is a critical need for new treatment strategies improving the clinical outcomes. New approaches in heart failure therapies target cellular mechanisms, as well as mechanical and structural aspects of heart failure that are not addressed by recent therapies. These include abnormalities in molecular mechanisms, electrical conduction and ventricular remodeling. This review presents the pathophysiological basis, mechanisms of action and available clinical efficacy and safety data of drugs and mechanical therapies that are currently under development.
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McArdle A, Chung MT, Paik KJ, Duldulao C, Chan C, Rennert R, Walmsley GG, Senarath-Yapa K, Hu M, Seo E, Lee M, Wan DC, Longaker MT. Positive selection for bone morphogenetic protein receptor type-IB promotes differentiation and specification of human adipose-derived stromal cells toward an osteogenic lineage. Tissue Eng Part A 2014; 20:3031-40. [PMID: 24854876 DOI: 10.1089/ten.tea.2014.0101] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Adipose tissue represents an abundant and easily accessible source of multipotent cells that may serve as an excellent building block for tissue engineering. However, adipose-derived stromal cells (ASCs) are a heterogeneous group and subpopulations may be identified with enhanced osteogenic potential. METHODS Human ASC subpopulations were prospectively isolated based on expression of bone morphogenetic protein receptor type-IB (BMPR-IB). Unsorted, BMPR-IB(+), and BMPR-IB(-) cells were analyzed for their osteogenic capacity through histological staining and gene expression. To evaluate their in vivo osteogenic potential, critical-sized calvarial defects were created in immunocompromised mice and treated with unsorted, BMPR-IB(+), or BMPR-IB(-) cells. Healing was assessed using microcomputed tomography and pentachrome staining of specimens at 8 weeks. RESULTS Increased osteogenic differentiation was noted in the BMPR-IB(+) subpopulation, as demonstrated by alkaline phosphatase staining at day 7 and extracellular matrix mineralization with Alizarin red staining at day 14. This was also associated with increased expression for osteocalcin, a late marker of osteogenesis. Radiographic analysis demonstrated significantly enhanced healing of critical-sized calvarial defects treated with BMPR-IB(+) ASCs compared with unsorted or BMPR-IB(-) cells. This was confirmed through pentachrome staining, which revealed more robust bone regeneration in the BMPR-IB(+) group. CONCLUSION BMPR-IB(+) human ASCs have an enhanced ability to form bone both in vitro and in vivo. These data suggest that positive selection for BMPR-IB(+) and manipulation of the BMP pathway in these cells may yield a highly osteogenic subpopulation of cells for bone tissue engineering.
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Affiliation(s)
- Adrian McArdle
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine , Stanford, California
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71
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Mesoporous bioactive glass doped-poly (3-hydroxybutyrate-co-3-hydroxyhexanoate) composite scaffolds with 3-dimensionally hierarchical pore networks for bone regeneration. Colloids Surf B Biointerfaces 2014; 116:72-80. [DOI: 10.1016/j.colsurfb.2013.12.052] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 12/20/2013] [Accepted: 12/21/2013] [Indexed: 11/22/2022]
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72
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Duan D, Klenkler BJ, Sheardown H. Progress in the development of a corneal replacement: keratoprostheses and tissue-engineered corneas. Expert Rev Med Devices 2014; 3:59-72. [PMID: 16359253 DOI: 10.1586/17434440.3.1.59] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Rapid progress has been made in the past 5 years in the development of corneal replacements. Traditionally they are divided into two categories, keratoprostheses and tissue-engineered corneal equivalents, as replacement tissues are increasingly in demand worldwide. There are currently several different keratoprosthesis models in clinical use around the world. The most popular and most widely publicized is the AlphaCor model, which has enjoyed significant clinical success. However, improvements remain to be made, and the aim of most of the current research is to better understand the interactions between a synthetic material and the surrounding biology on a more fundamental level. This improved understanding will no doubt lead to improvements in current models and to the development of new models in the near future. While tissue-engineered corneal equivalents have been under investigation for considerably less time, there is growing evidence to suggest that a tissue-engineered corneal equivalent comprised of primarily natural materials will exist in the not too distant future. Research groups have reported strong in vitro and in vivo results. The strength of the collagen matrix and its ability to support cell infiltration have been the primary avenues of research. Various collagen crosslinking techniques have been used. Infiltration of three major cells of the cornea has been observed. Most importantly, the ability of these materials to support nerve ingrowth has been demonstrated. While challenges remain with both types of corneal replacements, the considerable progress in the recent past suggests that reliable implants for the treatment of a variety of corneal diseases will be available. This review will provide an overview of recent results, and will provide insight into the future of research on corneal replacements.
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Affiliation(s)
- Derek Duan
- McMaster University, Department of Chemical Engineering, Hamilton ON L8S 4L7, Canada
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73
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Preparation, Characterization, and In Vitro Biological Evaluation of PLGA/Nano-Fluorohydroxyapatite (FHA) Microsphere-Sintered Scaffolds for Biomedical Applications. Appl Biochem Biotechnol 2014; 172:2465-79. [DOI: 10.1007/s12010-013-0696-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 12/25/2013] [Indexed: 12/21/2022]
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74
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Luo B, Loh QL, Chong Wong MT, Tan NS, Choong C. Bioactivated protein-based porous microcarriers for tissue engineering applications. J Mater Chem B 2014; 2:7795-7803. [DOI: 10.1039/c4tb00846d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipoaspirate-derived extracellular matrix enrichment was able to provide the necessary cell adhesion receptors and biological factors for improving cell–material interactions of porous OVA microcarriers.
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Affiliation(s)
- Baiwen Luo
- School of Materials Science and Engineering
- Nanyang Technological University
- , Singapore
| | - Qiu Li Loh
- School of Materials Science and Engineering
- Nanyang Technological University
- , Singapore
- Institute of Molecular and Cell Biology
- Agency for Science, Technology and Research
| | - Marcus Thien Chong Wong
- Department of General Surgery, Plastic, Reconstructive & Aesthetic Surgery
- Tan Tock Seng Hospital
- , Singapore
| | - Nguan Soon Tan
- Institute of Molecular and Cell Biology
- Agency for Science, Technology and Research
- , Singapore
- School of Biological Sciences
- Nanyang Technological University
| | - Cleo Choong
- School of Materials Science and Engineering
- Nanyang Technological University
- , Singapore
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75
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Ki SB, Singh D, Kim SC, Son TW, Han SS. Effect of cross-linkers in fabrication of carrageenan-alginate matrices for tissue engineering application. Biotechnol Appl Biochem 2013; 60:589-95. [PMID: 23668797 DOI: 10.1002/bab.1123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 05/10/2013] [Indexed: 11/09/2022]
Abstract
The three-dimensional (3D) scaffold serves as a structural substrate and as a niche for cell proliferation to ensure tissue regeneration. Ideal scaffolds should have porous structures with high pore interconnectivity to allow cell adherence, differentiation, and proliferation while ensuring suitable mechanical strength and biodegradability without inflicting any immune response. Cross-linker is one of the major factors that affect the mechanical and biological properties of scaffolds. In this study, different chemical cross-linker effects on scaffold architecture were examined. Porous 3D scaffolds based on carrageenan and alginate (CA) were successfully fabricated by a freeze-drying technique and using various cross-linkers like glutaraldehyde (GA), genipin, and ethyl (dimethylamino propyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS). The chemical cross-linker effects on the CA scaffold were characterized by scanning electron microscopy, differential scanning calorimetry, and thermogravimetry. A human fibroblast cell line (L929) was seeded into the fabricated scaffold, and cell proliferation was assessed by MTT and live/dead assay. Overall results suggested the potential cross-linkers for ideal CA biomaterial could be EDC/NHS among other agents tested as the scaffold CAEN was found to be porous, interconnected, and physically and mechanically stable. When compared to matrices with other cross-linkers, higher cell attachment, better cellular response, and higher metabolic activity could be observed in the scaffold synthesized using EDC/NHS as cross-linker.
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Affiliation(s)
- Saet Byul Ki
- Department of Nano, Medical & Polymer Materials, Yeungnam University, Gyeongsan, South Korea; Polymer Gel Research Cluster Center, Yeungnam University, Gyeongsan, South Korea
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76
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Reddy RM, Srivastava A, Kumar A. Monosaccharide-Responsive Phenylboronate-Polyol Cell Scaffolds for Cell Sheet and Tissue Engineering Applications. PLoS One 2013; 8:e77861. [PMID: 24167587 PMCID: PMC3805603 DOI: 10.1371/journal.pone.0077861] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 09/04/2013] [Indexed: 11/18/2022] Open
Affiliation(s)
- Rachamalla Maheedhar Reddy
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Akshay Srivastava
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
- * E-mail:
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77
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Icariin delivery porous PHBV scaffolds for promoting osteoblast expansion in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3545-52. [DOI: 10.1016/j.msec.2013.04.050] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 04/09/2013] [Accepted: 04/24/2013] [Indexed: 12/24/2022]
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78
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Tissue engineering and its potential use in surgery. Eur Surg 2013. [DOI: 10.1007/s10353-013-0216-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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79
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Xu Y, Huang C, Li L, Yu X, Wang X, Peng H, Gu Z, Wang Y. In vitro enzymatic degradation of a biological tissue fixed by alginate dialdehyde. Carbohydr Polym 2013; 95:148-54. [DOI: 10.1016/j.carbpol.2013.03.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 02/26/2013] [Accepted: 03/03/2013] [Indexed: 11/16/2022]
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80
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Gloria A, Russo T, D'Amora U, Zeppetelli S, D'Alessandro T, Sandri M, Bañobre-López M, Piñeiro-Redondo Y, Uhlarz M, Tampieri A, Rivas J, Herrmannsdörfer T, Dediu VA, Ambrosio L, De Santis R. Magnetic poly(ε-caprolactone)/iron-doped hydroxyapatite nanocomposite substrates for advanced bone tissue engineering. J R Soc Interface 2013; 10:20120833. [PMID: 23303218 DOI: 10.1098/rsif.2012.0833] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
In biomedicine, magnetic nanoparticles provide some attractive possibilities because they possess peculiar physical properties that permit their use in a wide range of applications. The concept of magnetic guidance basically spans from drug delivery and hyperthermia treatment of tumours, to tissue engineering, such as magneto-mechanical stimulation/activation of cell constructs and mechanosensitive ion channels, magnetic cell-seeding procedures, and controlled cell proliferation and differentiation. Accordingly, the aim of this study was to develop fully biodegradable and magnetic nanocomposite substrates for bone tissue engineering by embedding iron-doped hydroxyapatite (FeHA) nanoparticles in a poly(ε-caprolactone) (PCL) matrix. X-ray diffraction analyses enabled the demonstration that the phase composition and crystallinity of the magnetic FeHA were not affected by the process used to develop the nanocomposite substrates. The mechanical characterization performed through small punch tests has evidenced that inclusion of 10 per cent by weight of FeHA would represent an effective reinforcement. The inclusion of nanoparticles also improves the hydrophilicity of the substrates as evidenced by the lower values of water contact angle in comparison with those of neat PCL. The results from magnetic measurements confirmed the superparamagnetic character of the nanocomposite substrates, indicated by a very low coercive field, a saturation magnetization strictly proportional to the FeHA content and a strong history dependence in temperature sweeps. Regarding the biological performances, confocal laser scanning microscopy and AlamarBlue assay have provided qualitative and quantitative information on human mesenchymal stem cell adhesion and viability/proliferation, respectively, whereas the obtained ALP/DNA values have shown the ability of the nanocomposite substrates to support osteogenic differentiation.
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Affiliation(s)
- A Gloria
- Institute of Composite and Biomedical Materials, National Research Council, Naples 80125, Italy
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81
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Polymeric Membranes for the Biofabrication of Tissues and Organs. Biofabrication 2013. [DOI: 10.1016/b978-1-4557-2852-7.00005-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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82
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WU XIAOCHENG, HUANG BO, WANG JIAN, LI CHANGQING, ZHOU YUE. Collagen-targeting parathyroid hormone-related peptide promotes collagen binding and in vitro chondrogenesis in bone marrow-derived MSCs. Int J Mol Med 2012; 31:430-6. [DOI: 10.3892/ijmm.2012.1219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 12/06/2012] [Indexed: 11/05/2022] Open
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83
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Danesin R, Brun P, Roso M, Delaunay F, Samouillan V, Brunelli K, Iucci G, Ghezzo F, Modesti M, Castagliuolo I, Dettin M. Self-assembling peptide-enriched electrospun polycaprolactone scaffolds promote the h-osteoblast adhesion and modulate differentiation-associated gene expression. Bone 2012; 51:851-9. [PMID: 22926428 DOI: 10.1016/j.bone.2012.08.119] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 07/24/2012] [Accepted: 08/13/2012] [Indexed: 10/28/2022]
Abstract
Electrospun polycaprolactone (PCL) is able to support the adhesion and growth of h-osteoblasts and to delay their degradation rate to a greater extent with respect to other polyesters. The drawbacks linked to its employment in regenerative medicine arise from its hydrophobic nature and the lack of biochemical signals linked to it. This work reports on the attempt to add five different self-assembling (SA) peptides to PCL solutions before electrospinning. The hybrid scaffolds obtained had regular fibers (SEM analysis) whose diameters were similar to those of the extracellular matrix, more stable hydrophilic (contact angle measurement) surfaces, and an amorphous phase constrained by peptides (DSC analysis). They appeared to have a notable capacity to promote the h-osteoblast adhesion and differentiation process by increasing the gene expression of alkaline phosphatase, bone sialoprotein, and osteopontin. Adding an Arg-Gly-Asp (RGD) motif to a self-assembling sequence was found to enhance cell adhesion, while the same motif condensed with a scrambled sequence did not, indicating that there is a cooperative effect between RGD and 3D architecture created by the self-assembling peptides. The study demonstrates that self-assembling peptide scaffolds are still able to promote beneficial effects on h-osteoblasts even after they have been included in electrospun polycaprolactone. The possibility of linking biochemical messages to self-assembling peptides could lead the way to a 3D decoration of fibrous scaffolds.
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Affiliation(s)
- Roberta Danesin
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, 35131, Padua, Italy.
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84
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Rodrigues SC, Salgado CL, Sahu A, Garcia MP, Fernandes MH, Monteiro FJ. Preparation and characterization of collagen-nanohydroxyapatite biocomposite scaffolds by cryogelation method for bone tissue engineering applications. J Biomed Mater Res A 2012; 101:1080-94. [PMID: 23008173 DOI: 10.1002/jbm.a.34394] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 06/19/2012] [Accepted: 07/23/2012] [Indexed: 11/09/2022]
Abstract
Recent efforts of bone repair focus on development of porous scaffolds for cell adhesion and proliferation. Collagen-nanohydroxyapatite (HA) scaffolds (70:30; 50:50; and 30:70 mass percentage) were produced by cryogelation technique using 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide hydrochloride/N-hydroxysuccinimide as crosslinking agents. A pure collagen scaffold was used as control. Morphology analysis revealed that all cryogels had highly porous structure with interconnective porosity and the nanoHA aggregates were randomly dispersed throughout the scaffold structure. Chemical analysis showed the presence of all major peaks related to collagen and HA in the biocomposites and indicated possible interaction between nanoHA aggregates and collagen molecules. Porosity analysis revealed an enhancement in the surface area as the nanoHA percentage increased in the collagen structure. The biocomposites showed improved mechanical properties as the nanoHA content increased in the scaffold. As expected, the swelling capacity decreased with the increase of nanoHA content. In vitro studies with osteoblasts cells showed that they were able to attach and spread in all cryogels surfaces. The presence of collagen-nanoHA biocomposites resulted in higher overall cellular proliferation compared to pure collagen scaffold. A statistically significant difference between collagen and collagen-nanoHA cryogels was observed after 21 day of cell culture. These innovative collagen-nanoHA cryogels could have potentially appealing application as scaffolds for bone regeneration.
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Affiliation(s)
- Sandra C Rodrigues
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.
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85
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Zhao C, Tan A, Pastorin G, Ho HK. Nanomaterial scaffolds for stem cell proliferation and differentiation in tissue engineering. Biotechnol Adv 2012; 31:654-68. [PMID: 22902273 DOI: 10.1016/j.biotechadv.2012.08.001] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 07/31/2012] [Accepted: 08/01/2012] [Indexed: 02/08/2023]
Abstract
Tissue engineering is a clinically driven field and has emerged as a potential alternative to organ transplantation. The cornerstone of successful tissue engineering rests upon two essential elements: cells and scaffolds. Recently, it was found that stem cells have unique capabilities of self-renewal and multilineage differentiation to serve as a versatile cell source, while nanomaterials have lately emerged as promising candidates in producing scaffolds able to better mimic the nanostructure in natural extracellular matrix and to efficiently replace defective tissues. This article, therefore, reviews the key developments in tissue engineering, where the combination of stem cells and nanomaterial scaffolds has been utilized over the past several years. We consider the high potential, as well as the main issues related to the application of stem cells and nanomaterial scaffolds for a range of tissues including bone, cartilage, nerve, liver, eye etc. Promising in vitro results such as efficient attachment, proliferation and differentiation of stem cells have been compiled in a series of examples involving different nanomaterials. Furthermore, the merits of the marriage of stem cells and nanomaterial scaffolds are also demonstrated in vivo, providing early successes to support subsequent clinical investigations. This progress simultaneously drives mechanistic research into the mechanotransduction process responsible for the observations in order to optimize the process further. Current understanding is chiefly reported to involve the interaction of stem cells and the anchoring nanomaterial scaffolds by activating various signaling pathways. Substrate surface characteristics and scaffold bulk properties are also reported to influence not only short term stem cell adhesion, spreading and proliferation, but also longer term lineage differentiation, functionalization and viability. It is expected that the combination of stem cells and nanomaterials will develop into an important tool in tissue engineering for the innovative treatment of many diseases.
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Affiliation(s)
- Chunyan Zhao
- NanoCore, Engineering Block A, EA, Faculty of Engineering, National University of Singapore, 117576, Singapore
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86
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Nakatsuka N, Barnaby SN, Fath KR, Banerjee IA. Fabrication of Collagen–Elastin-Bound Peptide Microtubes for Mammalian Cell Attachment. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:1843-62. [DOI: 10.1163/156856211x598229] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Nako Nakatsuka
- a Department of Chemistry , Fordham University , 441 East Fordham Road, Bronx, New York , NY , 10458 , USA
| | - Stacey N. Barnaby
- a Department of Chemistry , Fordham University , 441 East Fordham Road, Bronx, New York , NY , 10458 , USA
| | - Karl R. Fath
- b Department of Biology , The City University of New York, Queens College , 65-30 Kissena Boulevard, Flushing, New York , NY , 11367 , USA
| | - Ipsita A. Banerjee
- a Department of Chemistry , Fordham University , 441 East Fordham Road, Bronx, New York , NY , 10458 , USA
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87
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Ge Z, Goh JCH, Wang L, Tan EPS, Lee EH. Characterization of knitted polymeric scaffolds for potential use in ligament tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 16:1179-92. [PMID: 16231607 DOI: 10.1163/1568562054798491] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Different scaffolds have been designed for ligament tissue engineering. Knitted scaffolds of poly-L-lactic acid (PLLA) yarns and co-polymeric yarns of PLLA and poly(glycolic acid) (PLGA) were characterized in the current study. The knitted scaffolds were immersed in medium for 20 weeks, before mass loss, molecular weight, pH value change in medium were tested; changes in mechanical properties were evaluated at different time points. Results showed that the knitted scaffolds had 44% porosity. There was no significant pH value change during degradation, while there was obvious mass loss at initial 4 week, as well as smooth molecular weight drop of PLLA. PLGA degraded more quickly, while PLLA kept its integrity for at least 20 weeks. Young's modulus increased while tensile strength and strain at break decreased with degradation time; however, all of them could maintain the basic requirements for ACL reconstruction. It showed that the knitted polymeric structures could serve as potential scaffolds for tissue-engineered ligaments.
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Affiliation(s)
- Z Ge
- Department of Orthopaedic Surgery, National University of Singapore, Republic of Singapore
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88
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Wang XH, Shi S, Guo G, Fu SZ, Fan M, Luo F, Zhao X, Wei YQ, Qian ZY. Preparation and Characterization of a Porous Scaffold Based on Poly(D,L-Lactide) and N-Hydroxyapatite by Phase Separation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1917-29. [PMID: 20961495 DOI: 10.1163/092050610x529155] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiu Hong Wang
- a State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Shuai Shi
- b State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Gang Guo
- c State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Shao Zhi Fu
- d State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Min Fan
- e State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Feng Luo
- f State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Xia Zhao
- g State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Yu Quan Wei
- h State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Zhi Yong Qian
- i State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China.
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89
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Davidenko N, Gibb T, Schuster C, Best SM, Campbell JJ, Watson CJ, Cameron RE. Biomimetic collagen scaffolds with anisotropic pore architecture. Acta Biomater 2012; 8:667-76. [PMID: 22005330 DOI: 10.1016/j.actbio.2011.09.033] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 09/12/2011] [Accepted: 09/26/2011] [Indexed: 01/21/2023]
Abstract
Sponge-like matrices with a specific three-dimensional structural design resembling the actual extracellular matrix of a particular tissue show significant potential for the regeneration and repair of a broad range of damaged anisotropic tissues. The manipulation of the structure of collagen scaffolds using a freeze-drying technique was explored in this work as an intrinsically biocompatible way of tailoring the inner architecture of the scaffold. The research focused on the influence of temperature gradients, imposed during the phase of crystallisation of collagen suspensions, upon the degree of anisotropy in the microstructures of the scaffolds produced. Moulding technology was employed to achieve differences in heat transfer rates during the freezing processes. For this purpose various moulds with different configurations were developed with a view to producing uniaxial and multi-directional temperature gradients across the sample during this process. Scanning electron microscopy analysis of different cross-sections (longitudinal and horizontal) of scaffolds revealed that highly aligned matrices with axially directed pore architectures were obtained where single unidirectional temperature gradients were induced. Altering the freezing conditions by the introduction of multiple temperature gradients allowed collagen scaffolds to be produced with complex pore orientations, and anisotropy in pore size and alignment.
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Affiliation(s)
- N Davidenko
- Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK.
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90
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Blondeau M, Coradin T. Living materials from sol–gel chemistry: current challenges and perspectives. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33647b] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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91
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Prabhakaran MP, Kai D, Ghasemi-Mobarakeh L, Ramakrishna S. Electrospun biocomposite nanofibrous patch for cardiac tissue engineering. Biomed Mater 2011; 6:055001. [PMID: 21813957 DOI: 10.1088/1748-6041/6/5/055001] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A bioengineered construct that matches the chemical, mechanical, biological properties and extracellular matrix morphology of native tissue could be suitable as a cardiac patch for supporting the heart after myocardial infarction. The potential of utilizing a composite nanofibrous scaffold of poly(dl-lactide-co-glycolide)/gelatin (PLGA/Gel) as a biomimetic cardiac patch is studied by culturing a population of cardiomyocyte containing cells on the electrospun scaffolds. The chemical characterization and mechanical properties of the electrospun PLGA and PLGA/Gel nanofibers were studied by Fourier transform infrared spectroscopy, scanning electron microscopy and tensile measurements. The biocompatibility of the scaffolds was also studied and the cardiomyocytes seeded on PLGA/Gel nanofibers were found to express the typical functional cardiac proteins such as alpha-actinin and troponin I, showing the easy integration of cardiomyocytes on PLGA/Gel scaffolds. Our studies strengthen the application of electrospun PLGA/Gel nanofibers as a bio-mechanical support for injured myocardium and as a potential substrate for induction of endogenous cardiomyocyte proliferation, ultimately reducing the cardiac dysfunction and improving cardiac remodeling.
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Affiliation(s)
- Molamma P Prabhakaran
- Health Care and Energy Materials Laboratory, Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore.
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92
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del Valle LJ, Roca D, Franco L, Puiggalí J, Rodríguez-Galán A. Preparation and release study of ibuprofen-loaded porous matrices of a biodegradable poly(ester amide) derived from L-alanine units. J Appl Polym Sci 2011. [DOI: 10.1002/app.34017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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93
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Cai X, Chen L, Jiang T, Shen X, Hu J, Tong H. Facile synthesis of anisotropic porous chitosan/hydroxyapatite scaffolds for bone tissue engineering. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11503k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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94
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Collagen-hyaluronic acid scaffolds for adipose tissue engineering. Acta Biomater 2010; 6:3957-68. [PMID: 20466086 DOI: 10.1016/j.actbio.2010.05.005] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 05/05/2010] [Accepted: 05/06/2010] [Indexed: 12/24/2022]
Abstract
Three-dimensional (3-D) in vitro models of the mammary gland require a scaffold matrix that supports the development of adipose stroma within a robust freely permeable matrix. 3-D porous collagen-hyaluronic acid (HA: 7.5% and 15%) scaffolds were produced by controlled freeze-drying technique and crosslinking with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride. All scaffolds displayed uniform, interconnected pore structure (total porosity approximately 85%). Physical and chemical analysis showed no signs of collagen denaturation during the formation process. The values of thermal characteristics indicated that crosslinking occurred and that its efficiency was enhanced by the presence of HA. Although the crosslinking reduced the swelling of the strut material in water, the collagen-HA matrix as a whole tended to swell more and show higher dissolution resistance than pure collagen samples. The compressive modulus and elastic collapse stress were higher for collagen-HA composites. All the scaffolds were shown to support the proliferation and differentiation 3T3-L1 preadipocytes while collagen-HA samples maintained a significantly increased proportion of cycling cells (Ki-67+). Furthermore, collagen-HA composites displayed significantly raised Adipsin gene expression with adipogenic culture supplementation for 8 days vs. control conditions. These results indicate that collagen-HA scaffolds may offer robust, freely permeable 3-D matrices that enhance mammary stromal tissue development in vitro.
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95
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Guarino V, Ambrosio L. Temperature-driven processing techniques for manufacturing fully interconnected porous scaffolds in bone tissue engineering. Proc Inst Mech Eng H 2010; 224:1389-400. [DOI: 10.1243/09544119jeim744] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The development of structures with a predefined multiscale pore network is a major challenge in designing tissue engineering (TE) scaffolds. To address this, several strategies have been investigated to provide biocompatible, biodegradable porous materials that would be suitable for use as scaffolds, and able to guide and facilitate the cell activity involved in the generation of new tissue regeneration. This study seeks to provide an overview of different temperature-driven process technologies for developing scaffolds with tailored porosity, in which pore size distribution is strictly defined and pores are fully interconnected. Here, three-dimensional (3D) porous composite scaffolds based on poly(∊-caprolactone) (PCL) were fabricated by thermally induced phase separation (TIPS) and by melt co-continuous polymer blending (MCPB). The combination of these processes with a salt leaching technique enables the establishment of bimodal porosity within the polymer network. This feature may be exploited in the development of substrates with fully interconnected pores, which can be used effectively for tissue regeneration. Various combinations of the proposed techniques provide a range of procedures for the preparation of porous scaffolds with an appropriate combination of morphological and mechanical properties to reproduce the requisite features of the extracellular matrix (ECM) of hard tissues such as bone.
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Affiliation(s)
- V Guarino
- Institute of Composite and Biomedical Materials (IMCB-CNR), National Research Council, Naples, Italy
| | - L Ambrosio
- Institute of Composite and Biomedical Materials (IMCB-CNR), National Research Council, Naples, Italy
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96
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97
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Sumanasinghe RD, Haslauer CM, Pourdeyhimi B, Loboa EG. Melt spun microporous fibers using poly(lactic acid) and sulfonated copolyester blends for tissue engineering applications. J Appl Polym Sci 2010. [DOI: 10.1002/app.32025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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98
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Eslaminejad MB, Mirzadeh H, Nickmahzar A, Mohamadi Y, Mivehchi H. Type I collagen gel in seeding medium improves murine mesencymal stem cell loading onto the scaffold, increases their subsequent proliferation, and enhances culture mineralization. J Biomed Mater Res B Appl Biomater 2009; 90:659-67. [PMID: 19204919 DOI: 10.1002/jbm.b.31332] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Collagen I as a major organic component of bone matrix may be important for establishment and maintenance of mesenchymal stem cells (MSCs) in osteogenic 3D culture. To explore this subject, murine marrow-derived MSCs were seeded onto hybrid scaffolds of alginate/gelatin/beta-tricalcium phosphate in a medium either with or without collagen I gel. The cultures were then provided with osteogenic medium and incubated for three weeks during which loading efficiency, cell proliferation and the culture mineralization were quantified and statistically compared. According to the findings, in culture with collagen, although about 60% of the cells left the scaffolds, the remaining cells, however, proliferated extensively with a population doubling number (PDN) equivalent to 2.46 +/- 0.31 and organized as cell aggregations that were heavily mineralized (calcium concentration = 1.017 +/- 0.141 mM per scaffold), whereas in the culture without collagen, about 75% of the cells left the scaffolds, less cell proliferation occurred (PDN = 1.48 +/- 0.29) and no cell aggregation was observed. The calcium concentration in this culture was 0.185 +/- 0.029 mM per scaffold. All these differences were statistically significant (p < 0.001). Taken together, these data suggested that using the collagen I in seeding medium could help mMSCs loading into the scaffold, enhance their subsequent proliferation, and increase calcium deposition in 3D culture system.
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99
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Zorlutuna P, Yılgör P, Başmanav FB, Hasırcı V. Biomaterials and tissue engineering research in Turkey: The METU Biomat Center experience. Biotechnol J 2009; 4:965-80. [DOI: 10.1002/biot.200800335] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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100
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Novel treatment options for chronic heart failure: a radiologist's perspective. AJR Am J Roentgenol 2009; 193:W14-24. [PMID: 19542378 DOI: 10.2214/ajr.08.1918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE This article aims to familiarize radiologists with novel treatment options for chronic heart failure that is unresponsive to medical therapy, such as mechanical cardiac assist devices, surgical procedures, resynchronization therapy with biventricular pacing, and cellular cardiomyoplasty, and their radiographic appearances. CONCLUSION Heart transplantation as a treatment of debilitating heart failure provides an opportunity for meaningful long-term survival but is limited by a shortage of donor hearts. This has spurred the development of new treatment options for chronic heart failure that is unresponsive to medical therapy.
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