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Ivanova Y, Gramatiuk S, Kryvoruchko I, Tymchenko M, Goltsev K, Sargsyan K. Investigating the joint application of negative pressure wound treatment and tissue therapy for chronic wounds in patients with diabetes. J Med Life 2023; 16:1098-1104. [PMID: 37900068 PMCID: PMC10600680 DOI: 10.25122/jml-2023-0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 04/19/2023] [Indexed: 10/31/2023] Open
Abstract
This study aimed to investigate the effectiveness of combined negative pressure wound therapy (NPWT) and human amniotic membrane in patients with chronic wounds associated with diabetes. A total of five patients with type 2 diabetes, including ischemic and mixed forms of diabetic foot syndrome, presenting with ischemic wounds of the lower extremities were included in this study. Patients with uncorrected limb ischemia were excluded. The treatment protocol included diabetes compensation (treatment with fractional insulin therapy), anticoagulant, metabolic therapy and angiotropic therapy, physical treatment methods, osteoporosis therapy with calcium preparations, and wound-specific interventions. The primary treatment approach involved the application of a vacuum bandage to the transplanted human amniotic membrane, which improved the adaptation of the flap to the wound surface, allowed the removal of excess wound exudate, and stimulated angiogenesis and reparative properties. The combined approach of NPWT and biotherapy was a safe and effective cure for diabetic wounds, promoting faster wound healing, reducing the need for autodermoplasty, and possibly reducing the necessity for high-level amputations.
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Affiliation(s)
- Yulia Ivanova
- Institute of Bio-Stem Cell Rehabilitation, Ukraine Association of Biobank, Kharkiv, Ukraine
- Surgery Department, Kharkiv National Medical University, Kharkiv, Ukraine
| | - Svitlana Gramatiuk
- Institute of Bio-Stem Cell Rehabilitation, Ukraine Association of Biobank, Kharkiv, Ukraine
- International Biobanking and Education, Medical University of Graz, Graz, Austria
| | - Igor Kryvoruchko
- Surgery Department, Kharkiv National Medical University, Kharkiv, Ukraine
| | - Mykhailo Tymchenko
- Surgery Department, Kharkiv National Medical University, Kharkiv, Ukraine
- Zaytsev V.T. Institute of General and Urgent Surgery, National Academy of Medical Sciences of Ukraine, Kharkiv, Ukraine
| | - Kyrylo Goltsev
- Surgery Department, Kharkiv National Medical University, Kharkiv, Ukraine
| | - Karine Sargsyan
- International Biobanking and Education, Medical University of Graz, Graz, Austria
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2
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Biomimetic nanofiber-enabled rapid creation of skin grafts. Nanomedicine (Lond) 2023. [DOI: 10.1016/b978-0-12-818627-5.00009-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
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3
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Shen Z, Sun L, Liu Z, Li M, Cao Y, Han L, Wang J, Wu X, Sang S. Rete ridges: Morphogenesis, function, regulation, and reconstruction. Acta Biomater 2023; 155:19-34. [PMID: 36427683 DOI: 10.1016/j.actbio.2022.11.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/29/2022] [Accepted: 11/16/2022] [Indexed: 11/25/2022]
Abstract
Rete ridges (RRs) are distinct undulating microstructures at the junction of the dermis and epidermis in the skin of humans and certain animals. This structure is essential for enhancing the mechanical characteristics of skin and preserving homeostasis. With the development of tissue engineering and regenerative medicine, artificial skin grafts have made great progress in the field of skin healing. However, the restoration of RRs has been often disregarded or absent in artificial skin grafts, which potentially compromise the efficacy of tissue repair and regeneration. Therefore, this review collates recent research advances in understanding the structural features, function, morphogenesis, influencing factors, and reconstruction strategies pertaining to RRs. In addition, the preparation methods and limitations of tissue-engineered skin with RRs are discussed. STATEMENT OF SIGNIFICANCE: The technology for the development of tissue-engineered skin (TES) is widely studied and reported; however, the preparation of TES containing rete ridges (RRs) is often ignored, with no literature reviews on the structural reconstruction of RRs. This review focuses on the progress pertaining to RRs and focuses on the reconstruction methods for RRs. In addition, it discusses the limitations of existing reconstruction methods. Therefore, this review could be a valuable reference for transferring TES with RR structure from the laboratory to clinical applications in skin repair.
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Affiliation(s)
- Zhizhong Shen
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
| | - Lei Sun
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China; Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Zixian Liu
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China; Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Meng Li
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Research Institute of 6D Artificial Intelligence Biomedical Science, Taiyuan 030031, China
| | - Yanyan Cao
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Research Institute of 6D Artificial Intelligence Biomedical Science, Taiyuan 030031, China
| | - Lu Han
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Research Institute of 6D Artificial Intelligence Biomedical Science, Taiyuan 030031, China
| | - Jianming Wang
- General Hospital of TISCO, North Street, Xinghualing District, Taiyuan 030809, China
| | - Xunwei Wu
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China; Engineering Laboratory for Biomaterials and Tissue Regeneration, Ningbo Stomatology Hospital, Savaid Stomatology School, Hangzhou Medical College, Ningbo, China.
| | - Shengbo Sang
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China; Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China.
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4
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Duceac IA, Coseri S. Biopolymers and their derivatives: Key components of advanced biomedical technologies. Biotechnol Adv 2022; 61:108056. [DOI: 10.1016/j.biotechadv.2022.108056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/26/2022] [Accepted: 10/23/2022] [Indexed: 11/02/2022]
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5
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Luneva O, Olekhnovich R, Uspenskaya M. Bilayer Hydrogels for Wound Dressing and Tissue Engineering. Polymers (Basel) 2022; 14:polym14153135. [PMID: 35956650 PMCID: PMC9371176 DOI: 10.3390/polym14153135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/30/2022] Open
Abstract
A large number of different skin diseases such as hits, acute, and chronic wounds dictate the search for alternative and effective treatment options. The wound healing process requires a complex approach, the key step of which is the choice of a dressing with controlled properties. Hydrogel-based scaffolds can serve as a unique class of wound dressings. Presented on the commercial market, hydrogel wound dressings are not found among proposals for specific cases and have a number of disadvantages—toxicity, allergenicity, and mechanical instability. Bilayer dressings are attracting great attention, which can be combined with multifunctional properties, high criteria for an ideal wound dressing (antimicrobial properties, adhesion and hemostasis, anti-inflammatory and antioxidant effects), drug delivery, self-healing, stimulus manifestation, and conductivity, depending on the preparation and purpose. In addition, advances in stem cell biology and biomaterials have enabled the design of hydrogel materials for skin tissue engineering. To improve the heterogeneity of the cell environment, it is possible to use two-layer functional gradient hydrogels. This review summarizes the methods and application advantages of bilayer dressings in wound treatment and skin tissue regeneration. Bilayered hydrogels based on natural as well as synthetic polymers are presented. The results of the in vitro and in vivo experiments and drug release are also discussed.
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Yazdanpanah A, Madjd Z, Pezeshki-Modaress M, Khosrowpour Z, Farshi P, Eini L, Kiani J, Seifi M, Kundu SC, Ghods R, Gholipourmalekabadi M. Bioengineering of fibroblast-conditioned Polycaprolactone/Gelatin electrospun scaffold for skin tissue engineering. Artif Organs 2022; 46:1040-1054. [PMID: 35006608 DOI: 10.1111/aor.14169] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Synthetic tissue engineering scaffolds has poor biocompatiblity with very low angiogenic properties. Conditioning the scaffolds with functional groups, coating with biological components, especially extracellular matrix (ECM), is an excellent strategy for improving their biomechanical and biological properties. METHODS In the current study, a composite of polycaprolactone and gelatin (PCL/Gel) was electrospun in the ratio of 70/30 and surface modified with 1% gelatin-coating (G-PCL/Gel) or plasma treatment (P-PCL/Gel). The surface modification was determined by SEM and ATR-FTIR spectroscopy, respectively. The scaffolds were cultured with fibroblast 3T3, then decellularized during freeze-thawing process to fabricate a fibroblast ECM-conditioned PCL/Gel scaffold (FC-PCL/Gel). The swelling and degaradtion as well as in vitro and in vivo biocompatibility and angiogenic properties of the scaffolds were evaluated. RESULTS The structure of the surface-modified G-PCL/Gel and P-PCL/Gel were unique and not changed compared to the PCL/Gel scaffolds. ATR-FTIR analysis admitted the formation of oxygen-containing groups, hydroxyl and carboxyl, on the surface of the P-PCL/Gel scaffold. The SEM micrographs and DAPI staining confirmed the cell attachment and the ECM deposition on the platform and successful removal of the cells after decellularization. P-PCL/Gel showed better cell attachment, ECM secretion and deposition after decellularization compared with G-PCL/Gel. The FC-PCL/Gel was considered as an optimized scaffold for further assays in this study. The FC-PCL/Gel showed increased hydrophilic behavior and cytobiocompatibility compared with P-PCL/Gel. The ECM on the FC-PCL/Gel scaffold showed a gradual degradation during 30 days degradation time, as a small amount of ECM remained over the FC-PCL/Gel scaffold at day 30. The FC-PCL/Gel showed significant biocompatibility and improved angiogenic property compared with P-PCL/Gel when subcutaneously implanted in a mouse animal model for 7 and 28 days. CONCLUSIONS Our findings suggest FC-PCL/Gel as an excellent biomimetic construct with high angiogenic properties. This bioengineered construct can serve as a possible application in our future pre-clinical and clinical studies for skin regeneration.
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Affiliation(s)
- Ayna Yazdanpanah
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, University of Medical Sciences, Tehran, Iran
| | - Zahra Madjd
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medicine Sciences, Tehran, Iran
| | | | - Zahra Khosrowpour
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Paniz Farshi
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, University of Medical Sciences, Tehran, Iran.,Department of Biomaterials, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Leila Eini
- Department of Basic Science, Faculty of Veterinary, Science and Research Branch of Islamic, Azad University, Tehran, Iran
| | - Jafar Kiani
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medicine Sciences, Tehran, Iran
| | - Morteza Seifi
- Dept of Medical Genetics, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Subhas C Kundu
- 3B's Research Group, Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Guimarães, Portugal
| | - Roya Ghods
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medicine Sciences, Tehran, Iran
| | - Mazaher Gholipourmalekabadi
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Medical Biotechnology, Faculty of Allied Medicine, University of Medical Sciences, Tehran, Iran
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7
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Dobaj Štiglic A, Kargl R, Beaumont M, Strauss C, Makuc D, Egger D, Plavec J, Rojas OJ, Stana Kleinschek K, Mohan T. Influence of Charge and Heat on the Mechanical Properties of Scaffolds from Ionic Complexation of Chitosan and Carboxymethyl Cellulose. ACS Biomater Sci Eng 2021; 7:3618-3632. [PMID: 34264634 PMCID: PMC8396805 DOI: 10.1021/acsbiomaterials.1c00534] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/29/2021] [Indexed: 11/29/2022]
Abstract
As one of the most abundant, multifunctional biological polymers, polysaccharides are considered promising materials to prepare tissue engineering scaffolds. When properly designed, wetted porous scaffolds can have biomechanics similar to living tissue and provide suitable fluid transport, both of which are key features for in vitro and in vivo tissue growth. They can further mimic the components and function of glycosaminoglycans found in the extracellular matrix of tissues. In this study, we investigate scaffolds formed by charge complexation between anionic carboxymethyl cellulose and cationic protonated chitosan under well-controlled conditions. Freeze-drying and dehydrothermal heat treatment were then used to obtain porous materials with exceptional, unprecendent mechanical properties and dimensional long-term stability in cell growth media. We investigated how complexation conditions, charge ratio, and heat treatment significantly influence the resulting fluid uptake and biomechanics. Surprisingly, materials with high compressive strength, high elastic modulus, and significant shape recovery are obtained under certain conditions. We address this mostly to a balanced charge ratio and the formation of covalent amide bonds between the polymers without the use of additional cross-linkers. The scaffolds promoted clustered cell adhesion and showed no cytotoxic effects as assessed by cell viability assay and live/dead staining with human adipose tissue-derived mesenchymal stem cells. We suggest that similar scaffolds or biomaterials comprising other polysaccharides have a large potential for cartilage tissue engineering and that elucidating the reason for the observed peculiar biomechanics can stimulate further research.
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Affiliation(s)
- Andreja Dobaj Štiglic
- Laboratory
for Characterization and Processing of Polymers, Faculty of Mechanical
Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Rupert Kargl
- Laboratory
for Characterization and Processing of Polymers, Faculty of Mechanical
Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
- Institute
of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska cesta 46, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Marco Beaumont
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo 00076, Finland
| | - Christine Strauss
- Department
of Biotechnology, University of Natural
Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Damjan Makuc
- Slovenian
NMR Center, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
| | - Dominik Egger
- Department
of Biotechnology, University of Natural
Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Janez Plavec
- Slovenian
NMR Center, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
- EN→FIST
Center of Excellence, Trg OF 13, SI-1000 Ljubljana, Slovenia
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, 1000 Ljubljana, Slovenia
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo 00076, Finland
- Departments
of Chemical and Biological Engineering, Chemistry, and Wood Science,
Bioproducts Institute, University of British
Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Karin Stana Kleinschek
- Institute
of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska cesta 46, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Tamilselvan Mohan
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
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8
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Izadyari Aghmiuni A, Heidari Keshel S, Sefat F, AkbarzadehKhiyavi A. Fabrication of 3D hybrid scaffold by combination technique of electrospinning-like and freeze-drying to create mechanotransduction signals and mimic extracellular matrix function of skin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 120:111752. [PMID: 33545893 DOI: 10.1016/j.msec.2020.111752] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 10/16/2020] [Accepted: 11/21/2020] [Indexed: 12/15/2022]
Abstract
Fabrication of extracellular matrix (ECM)-like scaffolds (in terms of structural-functional) is the main challenge in skin tissue engineering. Herein, inspired by macromolecular components of ECM, a novel hybrid scaffold suggested which includes silk/hyaluronan (SF/HA) bio-complex modified by PCP: [polyethylene glycol/chitosan/poly(ɛ-caprolactone)] copolymer containing collagen to differentiate human-adipose-derived stem cells into keratinocytes. In followed by, different weight ratios (wt%) of SF/HA (S1:100/0, S2:80/20, S3:50/50) were applied to study the role of SF/HA in the improvement of physicochemical and biological functions of scaffolds. Notably, the combination of electrospinning-like and freeze-drying methods was also utilized as a new method to create a coherent 3D-network. The results indicated this novel technique was led to ~8% improvement of the scaffold's ductility and ~17% decrease in mean pore diameter, compared to the freeze-drying method. Moreover, the increase of HA (>20wt%) increased porosity to 99%, however, higher tensile strength, modulus, and water absorption% were related to S2 (38.1, 0.32 MPa, 75.3%). More expression of keratinocytes along with growth pattern similar to skin was also observed on S2. This study showed control of HA content creates a microporous-environment with proper modulus and swelling%, although, the role of collagen/PCP as base biocomposite and fabrication technique was undeniable on the inductive signaling of cells. Such a scaffold can mimic skin properties and act as the growth factor through inducing keratinocytes differentiation.
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Affiliation(s)
| | - S Heidari Keshel
- Medical Nanotechnology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Science, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Farshid Sefat
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford, UK; Interdisciplinary Research Centre in Polymer Science & Technology (IRC Polymer), University of Bradford, Bradford, UK
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Tang Q, Lim T, Wei XJ, Wang QY, Xu JC, Shen LY, Zhu ZZ, Zhang CQ. A free-standing multilayer film as a novel delivery carrier of platelet lysates for potential wound-dressing applications. Biomaterials 2020; 255:120138. [DOI: 10.1016/j.biomaterials.2020.120138] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 05/03/2020] [Accepted: 05/19/2020] [Indexed: 12/16/2022]
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10
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Witko T, Solarz D, Feliksiak K, Haraźna K, Rajfur Z, Guzik M. Insights into In Vitro Wound Closure on Two Biopolyesters-Polylactide and Polyhydroxyoctanoate. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2793. [PMID: 32575761 PMCID: PMC7344463 DOI: 10.3390/ma13122793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 12/12/2022]
Abstract
Two bio-based polymers have been compared in this study, namely: polylactide (PLA) and polyhydroxyoctanoate (PHO). Due to their properties such as biocompatibility, and biointegrity they are considered to be valuable materials for medical purposes, i.e., creating scaffolds or wound dressings. Presented biopolymers were investigated for their impact on cellular migration strategies of mouse embryonic fibroblasts (MEF) 3T3 cell line. Advanced microscopic techniques, including confocal microscopy and immunofluorescent protocols, enabled the thorough analysis of the cell shape and migration. Application of wound healing assay combined with dedicated software allowed us to perform quantitative analysis of wound closure dynamics. The outcome of the experiments demonstrated that the wound closure dynamics for PLA differs from PHO. Single fibroblasts grown on PLA moved 1.5-fold faster, than those migrating on the PHO surface. However, when a layer of cells was considered, the wound closure was by 4.1 h faster for PHO material. The accomplished work confirms the potential of PLA and PHO as excellent candidates for medical applications, due to their properties that propagate cell migration, vitality, and proliferation-essential cell processes in the healing of damaged tissues.
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Affiliation(s)
- Tomasz Witko
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
| | - Daria Solarz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Karolina Feliksiak
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Katarzyna Haraźna
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
| | - Zenon Rajfur
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Maciej Guzik
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
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11
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Cassimjee H, Kumar P, Choonara YE, Pillay V. Proteosaccharide combinations for tissue engineering applications. Carbohydr Polym 2020; 235:115932. [DOI: 10.1016/j.carbpol.2020.115932] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/21/2020] [Accepted: 01/28/2020] [Indexed: 12/14/2022]
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12
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Irani S, Honarpardaz A, Choubini N, Pezeshki‐Modaress M, Zandi M. Chondro‐inductive nanofibrous scaffold based gelatin/polyvinyl alcohol/chondroitin sulfate for cartilage tissue engineering. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4869] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shiva Irani
- Department of Biology, Science and Research BranchIslamic Azad University Tehran Iran
| | - Ali Honarpardaz
- Department of Biology, Science and Research BranchIslamic Azad University Tehran Iran
| | - Niloufar Choubini
- Department of Biology, Science and Research BranchIslamic Azad University Tehran Iran
| | | | - Mojgan Zandi
- Department of BiomaterialsIran Polymer and Petrochemical Institute Tehran Iran
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13
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14
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Injectable Hyaluronic Acid- co-Gelatin Cryogels for Tissue-Engineering Applications. MATERIALS 2018; 11:ma11081374. [PMID: 30087295 PMCID: PMC6119876 DOI: 10.3390/ma11081374] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/01/2018] [Accepted: 08/03/2018] [Indexed: 12/31/2022]
Abstract
Polymeric scaffolds such as hydrogels can be engineered to restore, maintain, or improve impaired tissues and organs. However, most hydrogels require surgical implantation that can cause several complications such as infection and damage to adjacent tissues. Therefore, developing minimally invasive strategies is of critical importance for these purposes. Herein, we developed several injectable cryogels made out of hyaluronic acid and gelatin for tissue-engineering applications. The physicochemical properties of hyaluronic acid combined with the intrinsic cell-adhesion properties of gelatin can provide suitable physical support for the attachment, survival, and spreading of cells. The physical characteristics of pure gelatin cryogels, such as mechanics and injectability, were enhanced once copolymerized with hyaluronic acid. Reciprocally, the adhesion of 3T3 cells cultured in hyaluronic acid cryogels was enhanced when formulated with gelatin. Furthermore, cryogels had a minimal effect on bone marrow dendritic cell activation, suggesting their cytocompatibility. Finally, in vitro studies revealed that copolymerizing gelatin with hyaluronic acid did not significantly alter their respective intrinsic biological properties. These findings suggest that hyaluronic acid-co-gelatin cryogels combined the favorable inherent properties of each biopolymer, providing a mechanically robust, cell-responsive, macroporous, and injectable platform for tissue-engineering applications.
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15
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Sundaresan G, Abraham RJJ, Appa Rao V, Narendra Babu R, Govind V, Meti MF. Established method of chondroitin sulphate extraction from buffalo ( Bubalus bubalis) cartilages and its identification by FTIR. Journal of Food Science and Technology 2018; 55:3439-3445. [PMID: 30150802 PMCID: PMC6098760 DOI: 10.1007/s13197-018-3253-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Revised: 05/22/2018] [Accepted: 05/25/2018] [Indexed: 01/26/2023]
Abstract
A study was conducted for extraction of chondroitin sulphate (CS) from buffalo tracheal, nasal and joint cartilages. CS was extracted from cartilages using 0.25% papain digestion, dialyzed, precipitated with 10% TCA and finally lyophilized to dry powder. Dimethylmethylene blue assay was performed to estimate the quantity of CS extracted. Identification of extracted CS was performed with SDS-PAGE and Fourier transforms infrared spectroscopy (FTIR). SDS-PAGE analysis of extracted CS revealed similar electrophoretic pattern to that of standard and the molecular weight ranged from 5 to 20 kDa. FTIR spectra of extracted CS revealed presence of characteristic peaks of –CONH vibration of amide group, coupling of C–O stretching vibration, S=O stretching vibrations and –C–O–S molecules confirms the CS moiety. It can be concluded that extraction method adopted could efficiently be utilized for the extraction of CS from buffalo by-products like tracheal, nasal and joint cartilages.
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Affiliation(s)
- G. Sundaresan
- Department of Livestock Products Technology (Meat Science), Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, 600 007 India
| | - Robinson J. J. Abraham
- Department of Livestock Products Technology (Meat Science), Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, 600 007 India
| | - V. Appa Rao
- Department of Livestock Products Technology (Meat Science), Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, 600 007 India
| | - R. Narendra Babu
- Department of Livestock Products Technology (Meat Science), Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, 600 007 India
| | - V. Govind
- Department of Livestock Products Technology (Meat Science), Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, 600 007 India
| | - Mahantesh F. Meti
- Department of Livestock Products Technology (Meat Science), Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, 600 007 India
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16
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Sheikholeslam M, Wright MEE, Jeschke MG, Amini-Nik S. Biomaterials for Skin Substitutes. Adv Healthc Mater 2018; 7:10.1002/adhm.201700897. [PMID: 29271580 PMCID: PMC7863571 DOI: 10.1002/adhm.201700897] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/13/2017] [Indexed: 12/13/2022]
Abstract
Patients with extensive burns rely on the use of tissue engineered skin due to a lack of sufficient donor tissue, but it is a challenge to identify reliable and economical scaffold materials and donor cell sources for the generation of a functional skin substitute. The current review attempts to evaluate the performance of the wide range of biomaterials available for generating skin substitutes, including both natural biopolymers and synthetic polymers, in terms of tissue response and potential for use in the operating room. Natural biopolymers display an improved cell response, while synthetic polymers provide better control over chemical composition and mechanical properties. It is suggested that not one material meets all the requirements for a skin substitute. Rather, a composite scaffold fabricated from both natural and synthetic biomaterials may allow for the generation of skin substitutes that meet all clinical requirements including a tailored wound size and type, the degree of burn, the patient age, and the available preparation technique. This review aims to be a valuable directory for researchers in the field to find the optimal material or combination of materials based on their specific application.
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Affiliation(s)
- Mohammadali Sheikholeslam
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
| | - Meghan E E Wright
- Institute of Biomaterials & Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Marc G Jeschke
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Saeid Amini-Nik
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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17
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Biomimetic electrospun scaffolds from main extracellular matrix components for skin tissue engineering application – The role of chondroitin sulfate and sulfated hyaluronan. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Yu JZ, Korkmaz E, Berg MI, LeDuc PR, Ozdoganlar OB. Biomimetic scaffolds with three-dimensional undulated microtopographies. Biomaterials 2017; 128:109-120. [DOI: 10.1016/j.biomaterials.2017.02.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 01/18/2017] [Accepted: 02/10/2017] [Indexed: 12/20/2022]
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Wrobel MR, Sundararaghavan HG. Positive and negative cues for modulating neurite dynamics and receptor expression. Biomed Mater 2017; 12:025016. [DOI: 10.1088/1748-605x/aa61d1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Belair DG, Abbott BD. Engineering epithelial-stromal interactions in vitro for toxicology assessment. Toxicology 2017; 382:93-107. [PMID: 28285100 DOI: 10.1016/j.tox.2017.03.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 03/06/2017] [Indexed: 12/17/2022]
Abstract
Crosstalk between epithelial and stromal cells drives the morphogenesis of ectodermal organs during development and promotes normal mature adult epithelial tissue homeostasis. Epithelial-stromal interactions (ESIs) have historically been examined using mammalian models and ex vivo tissue recombination. Although these approaches have elucidated signaling mechanisms underlying embryonic morphogenesis processes and adult mammalian epithelial tissue function, they are limited by the availability of tissue, low throughput, and human developmental or physiological relevance. In this review, we describe how bioengineered ESIs, using either human stem cells or co-cultures of human primary epithelial and stromal cells, have enabled the development of human in vitro epithelial tissue models that recapitulate the architecture, phenotype, and function of adult human epithelial tissues. We discuss how the strategies used to engineer mature epithelial tissue models in vitro could be extrapolated to instruct the design of organotypic culture models that can recapitulate the structure of embryonic ectodermal tissues and enable the in vitro assessment of events critical to organ/tissue morphogenesis. Given the importance of ESIs towards normal epithelial tissue development and function, such models present a unique opportunity for toxicological screening assays to incorporate ESIs to assess the impact of chemicals on mature and developing epidermal tissues.
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Affiliation(s)
- David G Belair
- US EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Toxicity Assessment Division, Developmental Toxicology Branch, Research Triangle Park, NC 27711, United States.
| | - Barbara D Abbott
- US EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Toxicity Assessment Division, Developmental Toxicology Branch, Research Triangle Park, NC 27711, United States
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21
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Zhao X, Sun X, Yildirimer L, Lang Q, Lin ZYW, Zheng R, Zhang Y, Cui W, Annabi N, Khademhosseini A. Cell infiltrative hydrogel fibrous scaffolds for accelerated wound healing. Acta Biomater 2017; 49:66-77. [PMID: 27826004 PMCID: PMC5296408 DOI: 10.1016/j.actbio.2016.11.017] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/21/2016] [Accepted: 11/03/2016] [Indexed: 12/11/2022]
Abstract
Development of natural protein-based fibrous scaffolds with tunable physical properties and biocompatibility is highly desirable to construct three-dimensional (3D), fully cellularized scaffolds for wound healing. Herein, we demonstrated a simple and effective technique to construct electrospun 3D fibrous scaffolds for accelerated wound healing using a photocrosslinkable hydrogel based on gelatin methacryloyl (GelMA). We found that the physical properties of the photocrosslinkable hydrogel including water retention, stiffness, strength, elasticity and degradation can be tailored by changing the light exposure time. We further observed that the optimized hydrogel fibrous scaffolds which were soft and elastic could support cell adhesion, proliferation and migration into the whole scaffolds, facilitating regeneration and formation of cutaneous tissues within two weeks. Such tunable characteristics of the fibrous GelMA scaffolds distinguished them from other reported substrates developed for reconstruction of wound defects including glutaraldehyde-crosslinked gelatin or poly (lactic-co-glycolic acid) (PLGA), whose physical and chemical properties were difficult to modify to allow cell infiltration into the 3D scaffolds for tissue regeneration. We anticipate that the ability to become fully cellularized will make the engineered GelMA fibrous scaffolds suitable for widespread applications as skin substitutes or wound dressings. STATEMENT OF SIGNIFICANCE In present study, we generate three-dimensional photocrosslinkable gelatin (GelMA)-based fibrous scaffolds with tunable physical and biological properties by using a combined photocrosslinking/electrospinning approach. The developed GelMA fibrous scaffolds can not only support cell viability and cell adhesion, but also facilitate cell migration and proliferation, accelerating regeneration and formation of cutaneous tissues. In addition, the physical properties of the engineered fibrous GelMA hydrogel including water retention capability, mechanical properties and biodegradability can be tuned to accommodate different patients' needs, making it a promising candidate for skin tissue engineering.
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Affiliation(s)
- Xin Zhao
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Shaanxi 710049, China
| | - Xiaoming Sun
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University of Medicine, Shanghai 200011, China
| | - Lara Yildirimer
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Qi Lang
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Zhi Yuan William Lin
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Reila Zheng
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Yuguang Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University of Medicine, Shanghai 200011, China
| | - Wenguo Cui
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, Jiangsu 215006, China.
| | - Nasim Annabi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA; Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia.
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22
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Improvement of Physical and Wound Adhesion Properties of Silk Sericin and Polyvinyl Alcohol Dressing Using Glycerin. Adv Skin Wound Care 2016; 28:358-67. [PMID: 26181860 DOI: 10.1097/01.asw.0000467304.77196.b9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE This study aimed to use glycerin to improve physical and wound adhesion properties of a wound dressing made of silk sericin and polyvinyl alcohol (PVA). DESIGN Glycerin of a natural-derived plasticizer was used to modify the properties of silk sericin/PVA scaffolds. Various concentrations of glycerin were mixed with silk sericin and PVA and then fabricated into the scaffolds by a freeze-drying technique. The control study was performed to examine the properties of the silk sericin/PVA scaffolds with and without glycerin. MAIN OUTCOME MEASURES Physical, mechanical, wound adhesion properties, the release profile of silk sericin, and in vivo safety of the silk sericin/PVA scaffolds with and without glycerin were investigated. MAIN RESULTS The silk sericin/PVA scaffolds with glycerin exhibited more homogenous structure, less compressive modulus, higher Young modulus and elongation percentage, and a higher degree of crosslinking compared with the scaffold without glycerin. The silk sericin/PVA scaffold with 2% wt/vol glycerin showed more controlled release of silk sericin than the other scaffolds. The sustained release of silk sericin from the scaffold with glycerin would be advantageous for long-term healing of wounds. The silk sericin/PVA scaffold with 2% (wt/vol) glycerin was less adhesive to the wound compared with the scaffold without glycerin. Furthermore, the implantation of silk sericin/PVA scaffolds with 2% (wt/vol) glycerin did not cause any irritation to the tissue. CONCLUSION The silk sericin/PVA scaffolds with glycerin were introduced as a biocompatible, more flexible, and less adhesive wound dressing than the scaffold without glycerin.
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The Hyaluronic Acid Fillers: Current Understanding of the Tissue Device Interface. Facial Plast Surg Clin North Am 2016; 23:423-32. [PMID: 26505539 DOI: 10.1016/j.fsc.2015.07.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The article is a detailed update regarding cosmetic injectable fillers, specifically focusing on hyaluronic acid fillers. Hyaluronic acid-injectable fillers are used extensively for soft tissue volumizing and contouring. Many different hyaluronic acid-injectable fillers are available on the market and differ in terms of hyaluronic acid concentration, particle size, cross-linking density, requisite needle size, duration, stiffness, hydration, presence of lidocaine, type of cross-linking technology, and cost. Hyaluronic acid is a natural component of many soft tissues, is identical across species minimizing immunogenicity has been linked to wound healing and skin regeneration, and is currently actively being studied for tissue engineering purposes. The biomechanical and biochemical effects of HA on the local microenvironment of the injected site are key to its success as a soft tissue filler. Knowledge of the tissue-device interface will help guide the facial practitioner and lead to optimal outcomes for patients.
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24
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Santurdes N, González-Gómez A, Martín del Campo-Fierro M, Rosales-Ibáñez R, Oros-Ovalle C, Vázquez-Lasa B, San Román J. Development of bioresorbable bilayered systems for application as affordable wound dressings. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911516635840] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The objective of this work was the preparation and evaluation of a bioresorbable bilayered system for application in the treatment of dermal lesions. The system was based on a polyesterurethane as the external layer and a gelatin membrane as the internal layer. The polyesterurethane was synthesized from poly(ε-caprolactone), polyethylene glycol of 1 or 10 kDa as a hydrophilic component or Pluronic F127 as an amphiphilic component and l-lysine ethyl ester diisocyanate as an urethane precursor. Gelatin membrane was obtained by crosslinking with the naturally occurring crosslinker genipin. Three important points were addressed in this study: the physicochemical characterization of the system, the in vitro behaviour and the in vivo performance on a full-thickness wound defect of rat. The polyesterurethane containing polyethylene glycol of 10 kDa presented the optimum properties for the designed application as to be tested in animal experiments. The in vivo results showed good healing of the lesion with the formation of epidermis similar to normal rat skin. These promising results suggest the potential of this system to be used as an affordable wound dressing in the treatment of different dermal lesions.
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Affiliation(s)
- N Santurdes
- Institute of Polymer Science and Technology, CSIC, Madrid, Spain
| | - A González-Gómez
- Institute of Polymer Science and Technology, CSIC, Madrid, Spain
- CIBER, Carlos III Health Institute, Madrid, Spain
| | | | - R Rosales-Ibáñez
- Faculty of Stomatology, Autonomous University of San Luis Potosi, San Luis Potosi, Mexico
| | - C Oros-Ovalle
- Faculty of Medicine, Autonomous University of San Luis Potosi and Hospital Central ‘Dr. Ignacio Morones Prieto’, San Luis Potosi, Mexico
| | - B Vázquez-Lasa
- Institute of Polymer Science and Technology, CSIC, Madrid, Spain
- CIBER, Carlos III Health Institute, Madrid, Spain
| | - J San Román
- Institute of Polymer Science and Technology, CSIC, Madrid, Spain
- CIBER, Carlos III Health Institute, Madrid, Spain
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25
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Marrella A, Aiello M, Quarto R, Scaglione S. Chemical and morphological gradient scaffolds to mimic hierarchically complex tissues: From theoretical modeling to their fabrication. Biotechnol Bioeng 2016; 113:2286-97. [PMID: 27093435 DOI: 10.1002/bit.25994] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/18/2016] [Accepted: 04/12/2016] [Indexed: 01/07/2023]
Abstract
Porous multiphase scaffolds have been proposed in different tissue engineering applications because of their potential to artificially recreate the heterogeneous structure of hierarchically complex tissues. Recently, graded scaffolds have been also realized, offering a continuum at the interface among different phases for an enhanced structural stability of the scaffold. However, their internal architecture is often obtained empirically and the architectural parameters rarely predetermined. The aim of this work is to offer a theoretical model as tool for the design and fabrication of functional and structural complex graded scaffolds with predicted morphological and chemical features, to overcome the time-consuming trial and error experimental method. This developed mathematical model uses laws of motions, Stokes equations, and viscosity laws to describe the dependence between centrifugation speed and fiber/particles sedimentation velocity over time, which finally affects the fiber packing, and thus the total porosity of the 3D scaffolds. The efficacy of the theoretical model was tested by realizing engineered graded grafts for osteochondral tissue engineering applications. The procedure, based on combined centrifugation and freeze-drying technique, was applied on both polycaprolactone (PCL) and collagen-type-I (COL) to test the versatility of the entire process. A functional gradient was combined to the morphological one by adding hydroxyapatite (HA) powders, to mimic the bone mineral phase. Results show that 3D bioactive morphologically and chemically graded grafts can be properly designed and realized in agreement with the theoretical model. Biotechnol. Bioeng. 2016;113: 2286-2297. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Alessandra Marrella
- CNR-National Research Council of Italy, IEIIT Institute, Via De Marini 6, Genoa, 16149, Italy
| | - Maurizio Aiello
- CNR-National Research Council of Italy, IEIIT Institute, Via De Marini 6, Genoa, 16149, Italy
| | - Rodolfo Quarto
- Department of Experimental Medicine, University of Genoa, Largo R. Benzi 10, Genoa, Italy
| | - Silvia Scaglione
- CNR-National Research Council of Italy, IEIIT Institute, Via De Marini 6, Genoa, 16149, Italy.
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26
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Nguyen TH, Ventura R, Min YK, Lee BT. Genipin Cross-Linked Polyvinyl Alcohol-Gelatin Hydrogel for Bone Regeneration. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/jbise.2016.99037] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Revi D, Geetha C, Thekkuveettil A, Anilkumar TV. Fibroblast-loaded cholecyst-derived scaffold induces faster healing of full thickness burn wound in rabbit. J Biomater Appl 2015; 30:1036-48. [DOI: 10.1177/0885328215615759] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Graft-assisted healing is often proposed for clinical management of large-sized third-degree cutaneous burn wounds. Skin-graft substitutes prepared by loading appropriate cell types on suitable scaffolds have been found successful. We have previously shown that cholecyst-derived scaffold prepared by a non-detergent/enzymatic method can be used as skin-graft substitute for promoting healing of full thickness excision wounds in rabbit. This article examines the use of this scaffold for preparing bio-artificial grafts by loading homologous fibroblasts. The healing potential was evaluated in a rabbit model of full thickness skin-burn wound. The healing process was evaluated by gross morphology evaluation and histomorphology evaluation at 7, 14 and 28 days of healing. Ex vivo imaging of the wounded tissue was performed and it was found that the loaded fibroblasts remained viable at least for 14 days in the healing wound. By the first week, re-epithelialisation was evident in all animals treated with the cell-loaded graft. Histomorphological wound healing parameters such as the quickness of re-epithelialisation, the nature of collagen deposition and the extent of neo-vascularisation indicated that cell-loaded grafts promoted faster healing of the wounds. Results of immunohistochemistry indicated a parallel change in the number of proliferating cells and myofibroblast in the healing tissue. Although the pathophysiology of the healing reaction was not established, the observations suggested that homologus fibroblast-loaded cholecyst-derived scaffold promoted faster healing of third-degree wounds in rabbit model by modulating myofibroblast response. It was concluded that cholecyst-derived scaffold prepared by the non-detergent/enzymatic method is a potential scaffold for fabricating bioartificial skin grafts.
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Affiliation(s)
- Deepa Revi
- Division of Experimental Pathology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Science and Technology, Trivandrum, India
| | - C Geetha
- Division of Experimental Pathology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Science and Technology, Trivandrum, India
| | - Anoopkumar Thekkuveettil
- Division of Molecular Medicine, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India
| | - Thapasimuthu V Anilkumar
- Division of Experimental Pathology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Science and Technology, Trivandrum, India
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Yang KC, Kitamura Y, Wu CC, Chang HH, Ling TY, Kuo TF. Tooth Germ-Like Construct Transplantation for Whole-Tooth Regeneration: An In Vivo Study in the Miniature Pig. Artif Organs 2015; 40:E39-50. [DOI: 10.1111/aor.12630] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kai-Chiang Yang
- School of Dental Technology; College of Oral Medicine; Taipei Medical University; Taipei Taiwan
- Graduate Institute of Biomedical Materials & Tissue Engineering; College of Biomedical Engineering; Taipei Medical University; Taipei Taiwan
| | - Yutaka Kitamura
- Department of Oral and Maxillofacial Surgery; Matsumoto Dental University; Nagano Japan
| | - Chang-Chin Wu
- Department of Orthopedics; National Taiwan University Hospital; College of Medicine; National Taiwan University; Taipei Taiwan
- Department of Orthopedics; En Chu Kong Hospital; New Taipei City Taiwan
| | - Hao-Hueng Chang
- Department of Dentistry; School of Dentistry; National Taiwan University; Taipei Taiwan
| | - Thai-Yen Ling
- Institute of Pharmacology; College of Medicine; National Taiwan University; Taipei Taiwan
| | - Tzong-Fu Kuo
- Graduate Institute of Veterinary Medicine; School of Veterinary Medicine; National Taiwan University; Taipei Taiwan
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29
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Zhou Z, Xiang L, Ou B, Huang T, Zhou H, Zeng W, Liu L, Liu Q, Zhao Y, He S, Huang H. Biological AssessmentIn-Vivoof Gel-HA Scaffold Materials Containing Nano-Bioactive Glass for Tissue Engineering. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.916178] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Zhou M, Ulijn RV, Gough JE. Extracellular matrix formation in self-assembled minimalistic bioactive hydrogels based on aromatic peptide amphiphiles. J Tissue Eng 2014; 5:2041731414531593. [PMID: 24812581 PMCID: PMC4014077 DOI: 10.1177/2041731414531593] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 03/12/2014] [Indexed: 12/22/2022] Open
Abstract
The hitherto inconsistency in clinical performance for engineered skin drives the current development of novel cell-scaffolding materials; one challenge is to only extract essential characteristics from the complex native ECM (extracellular matrix) and incorporate them into a scaffold with minimal complexity to support normal cell functions. This study involved small-molecule-based bioactive hydrogels produced by the co-assembly of two aromatic peptide amphiphiles: Fmoc-FF (Fluorenylmethoxycarbonyl-diphenylalanine) and Fmoc-RGD (arginine–glycine–aspartic acid). Three-dimensionally cultured human dermal fibroblasts deposited dense ECM networks including fibronectin and collagen I within the hydrogels in a 14-day culture. The fibroblasts organized the fibrous ECM and contracted the gel without differentiating into myofibroblasts. The stiffness of the cell-gel constructs increased dramatically due to ECM formation and gel contraction. This created an economical biomimetic model-scaffold to further understand skin reconstruction in vitro and supplied a design pathway to create versatile cell-scaffolds with varied bioactivities and simplicity.
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Affiliation(s)
- Mi Zhou
- School of Materials, University of Manchester, Manchester, UK
| | - Rein V Ulijn
- Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, UK
| | - Julie E Gough
- School of Materials, University of Manchester, Manchester, UK
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31
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Mulder G, Wallin K, Tenenhaus M. Regenerative materials that facilitate wound healing. Clin Plast Surg 2012; 39:249-67. [PMID: 22732374 DOI: 10.1016/j.cps.2012.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Wounds and damaged tissue become problematic when the tissue repair process does not proceed in a normal manner. Standard treatment of wounds entails topical dressings and devices in conjunction with good wound care practices. Good practices adequately support healing in most patients. Difficult, chronic, or recalcitrant wounds may require the use of more advanced technologies. Wounds that are full thickness or present with the absence of a matrix, may particularly benefit from regenerative materials. This article focuses on the use of cellular and acellular materials as well as chemical constructs to support granulation, tissue repair, and wound closure.
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Affiliation(s)
- Gerit Mulder
- Division of Trauma, Department of Surgery, Wound Treatment and Research Center, University of California San Diego, 200 West Arbor Drive #8896, San Diego, CA 92103-8896, USA.
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32
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Zhou Z, Yang Z, Kong L, Liu L, Liu Q, Zhao Y, Zeng W, Yi Q, Cao D. Preparation and Characterization of Hyaluronic Acid Hydrogel Blends with Gelatin. J MACROMOL SCI B 2012. [DOI: 10.1080/00222348.2012.676355] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Zhihua Zhou
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Zhongmin Yang
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Lingchen Kong
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Lihua Liu
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Qingquan Liu
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Yanmin Zhao
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Wennan Zeng
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Qingfeng Yi
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
| | - Dafu Cao
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , P. R. China
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Fu X, Wang H. Rapid fabrication of biomimetic nanofiber-enabled skin grafts. Nanomedicine (Lond) 2012. [DOI: 10.1533/9780857096449.3.428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Siritientong T, Srichana T, Aramwit P. The effect of sterilization methods on the physical properties of silk sericin scaffolds. AAPS PharmSciTech 2011; 12:771-81. [PMID: 21671201 DOI: 10.1208/s12249-011-9641-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2010] [Accepted: 06/02/2011] [Indexed: 11/30/2022] Open
Abstract
Protein-based biomaterials respond differently to sterilization methods. Since protein is a complex structure, heat, or irradiation may result in the loss of its physical or biological properties. Recent investigations have shown that sericin, a degumming silk protein, can be successfully formed into a 3-D scaffolds after mixing with other polymers which can be applied in skin tissue engineering. The objective of this study was to investigate the effectiveness of ethanol, ethylene oxide (EtO) and gamma irradiation on the sterilization of sericin scaffolds. The influence of these sterilization methods on the physical properties such as pore size, scaffold dimensions, swelling and mechanical properties, as well as the amount of sericin released from sericin/polyvinyl alcohol/glycerin scaffolds, were also investigated. Ethanol treatment was ineffective for sericin scaffold sterilization whereas gamma irradiation was the most effective technique for scaffold sterilization. Moreover, ethanol also caused significant changes in pore size resulting from shrinkage of the scaffold. Gamma-irradiated samples exhibited the highest swelling property, but they also lost the greatest amount of weight after immersion for 24 h compared with scaffolds obtained from other sterilization methods. The results of the maximum stress test and Young's modulus showed that gamma-irradiated and ethanol-treated scaffolds are more flexible than the EtO-treated and untreated scaffolds. The amount of sericin released, which was related to its collagen promoting effect, was highest from the gamma-irradiated scaffold. The results of this study indicate that gamma irradiation should have the greatest potential for sterilizing sericin scaffolds for skin tissue engineering.
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Zhang F, He C, Cao L, Feng W, Wang H, Mo X, Wang J. Fabrication of gelatin–hyaluronic acid hybrid scaffolds with tunable porous structures for soft tissue engineering. Int J Biol Macromol 2011; 48:474-81. [DOI: 10.1016/j.ijbiomac.2011.01.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 01/06/2011] [Accepted: 01/11/2011] [Indexed: 02/07/2023]
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Van Vlierberghe S, Dubruel P, Schacht E. Biopolymer-based hydrogels as scaffolds for tissue engineering applications: a review. Biomacromolecules 2011; 12:1387-408. [PMID: 21388145 DOI: 10.1021/bm200083n] [Citation(s) in RCA: 1068] [Impact Index Per Article: 82.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hydrogels are physically or chemically cross-linked polymer networks that are able to absorb large amounts of water. They can be classified into different categories depending on various parameters including the preparation method, the charge, and the mechanical and structural characteristics. The present review aims to give an overview of hydrogels based on natural polymers and their various applications in the field of tissue engineering. In a first part, relevant parameters describing different hydrogel properties and the strategies applied to finetune these characteristics will be described. In a second part, an important class of biopolymers that possess thermosensitive properties (UCST or LCST behavior) will be discussed. Another part of the review will be devoted to the application of cryogels. Finally, the most relevant biopolymer-based hydrogel systems, the different methods of preparation, as well as an in depth overview of the applications in the field of tissue engineering will be given.
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Affiliation(s)
- S Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Ghent, Belgium
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Silva SS, Mano JF, Reis RL. Potential applications of natural origin polymer-based systems in soft tissue regeneration. Crit Rev Biotechnol 2010; 30:200-21. [PMID: 20735324 DOI: 10.3109/07388551.2010.505561] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Despite the many advances in tissue engineering approaches, scientists still face significant challenges in trying to repair and replace soft tissues. Nature-inspired routes involving the creation of polymer-based systems of natural origins constitute an interesting alternative route to produce novel materials. The interest in these materials comes from the possibility of constructing multi-component systems that can be manipulated by composition allowing one to mimic the tissue environment required for the cellular regeneration of soft tissues. For this purpose, factors such as the design, choice, and compatibility of the polymers are considered to be key factors for successful strategies in soft tissue regeneration. More recently, polysaccharide-protein based systems have being increasingly studied and proposed for the treatment of soft tissues. The characteristics, properties, and compatibility of the resulting materials investigated in the last 10 years, as well as commercially available matrices or those currently under investigation are the subject matter of this review.
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Affiliation(s)
- Simone S Silva
- 3B's Research Group- Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of European Institute of Excellence on Tissue Engineering and Regenerative Medicine - AvePark, Zona Industrial da Gandra - Caldas das Taipas - 4806-909 Guimarães- Portugal.
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Han CM, Zhang LP, Sun JZ, Shi HF, Zhou J, Gao CY. Application of collagen-chitosan/fibrin glue asymmetric scaffolds in skin tissue engineering. J Zhejiang Univ Sci B 2010; 11:524-30. [PMID: 20593518 DOI: 10.1631/jzus.b0900400] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
To create a scaffold that is suitable for the construction of tissue-engineered skin, a novel asymmetric porous scaffold with different pore sizes on either side was prepared by combining a collagen-chitosan porous membrane with fibrin glue. Tissue-engineered skin was fabricated using this asymmetric scaffold, fibroblasts, and a human keratinocyte line (HaCaT). Epidermal cells could be seen growing easily and achieved confluence on the fibrin glue on the upper surface of the scaffold. Scanning electron microscopy showed typical shuttle-like fibroblasts adhering to the wall of the scaffold and fluorescence microscopy showed them growing in the dermal layer of the scaffold. The constructed composite skin substitute had a histological structure similar to that of normal skin tissue after three weeks of culture. The results of our study suggest that the asymmetric scaffold is a promising biologically functional material for skin tissue engineering, with prospects for clinical applications.
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Affiliation(s)
- Chun-mao Han
- Department of Burn, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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Weinstein-Oppenheimer CR, Aceituno AR, Brown DI, Acevedo C, Ceriani R, Fuentes MA, Albornoz F, Henríquez-Roldán CF, Morales P, Maclean C, Tapia SM, Young ME. The effect of an autologous cellular gel-matrix integrated implant system on wound healing. J Transl Med 2010; 8:59. [PMID: 20565787 PMCID: PMC2907325 DOI: 10.1186/1479-5876-8-59] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2010] [Accepted: 06/17/2010] [Indexed: 02/10/2023] Open
Abstract
BACKGROUND This manuscript reports the production and preclinical studies to examine the tolerance and efficacy of an autologous cellular gel-matrix integrated implant system (IIS) aimed to treat full-thickness skin lesions. METHODS The best concentration of fibrinogen and thrombin was experimentally determined by employing 28 formula ratios of thrombin and fibrinogen and checking clot formation and apparent stability. IIS was formed by integrating skin cells by means of the in situ gelification of fibrin into a porous crosslinked scaffold composed of chitosan, gelatin and hyaluronic acid. The in vitro cell proliferation within the IIS was examined by the MTT assay and PCNA expression. An experimental rabbit model consisting of six circular lesions was utilized to test each of the components of the IIS. Then, the IIS was utilized in an animal model to cover a 35% body surface full thickness lesion. RESULTS The preclinical assays in rabbits demonstrated that the IIS was well tolerated and also that IIS-treated rabbit with lesions of 35% of their body surface, exhibited a better survival rate (p = 0,06). CONCLUSION IIS should be further studied as a new wound dressing which shows promising properties, being the most remarkable its good biological tolerance and cell growth promotion properties.
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Affiliation(s)
- Caroline R Weinstein-Oppenheimer
- Departamento de Bioquímica, Facultad de Farmacia, Universidad de Valparaíso, Avenida Gran Bretaña 1093, Playa Ancha Valparaíso, Casilla 5001-V, Valparaíso, Chile
| | - Alexis R Aceituno
- Departamento de Ciencias Farmacéuticas, Facultad de Farmacia, Universidad de Valparaíso, Avenida Gran Bretaña 1093, Playa Ancha Valparaíso, Casilla 5001-V, Valparaíso, Chile
| | - Donald I Brown
- Departamento de Biología y Ciencias Ambientales, Facultad de Ciencias, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Playa Ancha Valparaíso, Casilla 5030, Valparaíso, Chile
| | - Cristian Acevedo
- Centro de Biotecnología "Daniel Alkalay", Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile
| | - Ricardo Ceriani
- Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha de Ciencias de la Educación Avenida Leopoldo Carvallo 270, Playa Ancha, Valparaíso, Chile
| | - Miguel A Fuentes
- Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha de Ciencias de la Educación Avenida Leopoldo Carvallo 270, Playa Ancha, Valparaíso, Chile
| | - Fernando Albornoz
- Centro de Biotecnología "Daniel Alkalay", Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile
| | - Carlos F Henríquez-Roldán
- Centro de Estudios Estadísticos, Universidad de Valparaíso, Avenida Gran Bretaña 1041, Playa Ancha Valparaíso, Casilla 5030-V, Valparaíso, Chile
- Departamento de Estadística, Facultad de Ciencias, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile
| | - Patricio Morales
- Clínica Veterinaria La Protectora, Levarte 833, Playa Ancha, Valparaíso, Chile
| | | | - Sergio M Tapia
- Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha de Ciencias de la Educación Avenida Leopoldo Carvallo 270, Playa Ancha, Valparaíso, Chile
| | - Manuel E Young
- Centro de Biotecnología "Daniel Alkalay", Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile
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Zilkens C, Lögters T, Bittersohl B, Krauspe R, Lensing-Höhn S, Jäger M. Spinning around or stagnation - what do osteoblasts and chondroblasts really like? Eur J Med Res 2010; 15:35-43. [PMID: 20159670 PMCID: PMC3351846 DOI: 10.1186/2047-783x-15-1-35] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Objective The influcence of cytomechanical forces in cellular migration, proliferation and differentation of mesenchymal stem cells (MSCs) is still poorly understood in detail. Methods Human MSCs were isolated and cultivated onto the surface of a 3 × 3 mm porcine collagen I/III carrier. After incubation, cell cultures were transfered to the different cutures systems: regular static tissue flasks (group I), spinner flasks (group II) and rotating wall vessels (group III). Following standard protocols cells were stimulated lineage specific towards the osteogenic and chondrogenic lines. To evaluate the effects of applied cytomechanical forces towards cellular differentiation distinct parameters were measured (morphology, antigen and antigen expression) after a total cultivation period of 21 days in vitro. Results Depending on the cultivation technique we found significant differences in both gen and protein expression. Conclusion Cytomechanical forces with rotational components strongly influence the osteogenic and chondrogenic differentiation.
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Affiliation(s)
- C Zilkens
- Department of Orthopaedics, Heinrich-Heine University of Duesseldorf, 40225 Duesseldorf, Germany
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41
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Peramo A, Marcelo CL. Bioengineering the Skin–Implant Interface: The Use of Regenerative Therapies in Implanted Devices. Ann Biomed Eng 2010; 38:2013-31. [DOI: 10.1007/s10439-010-9937-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Accepted: 01/17/2010] [Indexed: 11/25/2022]
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Improved Preservation of the Tissue Surrounding Percutaneous Devices by Hyaluronic Acid and Dermatan Sulfate in a Human Skin Explant Model. Ann Biomed Eng 2009; 38:1098-110. [DOI: 10.1007/s10439-009-9872-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Accepted: 12/08/2009] [Indexed: 01/13/2023]
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43
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Wang TW, Spector M. Development of hyaluronic acid-based scaffolds for brain tissue engineering. Acta Biomater 2009; 5:2371-84. [PMID: 19403351 DOI: 10.1016/j.actbio.2009.03.033] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 02/10/2009] [Accepted: 03/24/2009] [Indexed: 12/25/2022]
Abstract
Three-dimensional biodegradable porous scaffolds play vital roles in tissue engineering. In this study, a hyaluronic acid-collagen (HA-Coll) sponge with an open porous structure and mechanical behavior comparable to brain tissue was developed. HA-Coll scaffolds with different mixing ratios were prepared by a freeze-drying technique and crosslinked with water-soluble carbodiimide to improve mechanical stability. The pore structure of the samples was evaluated by light and scanning electron microscopy, and the mechanical behavior was analyzed by mechanical compression and tension testing. The degree of crosslinking was determined by the water absorption and trinitrobenzene sulfonic assay, and the HA content was determined by a carbazole assay. The results showed that HA-Coll scaffolds containing an open porous structure with a homogeneous pore size distribution could be fabricated. Certain features of the mechanical properties of HA-Coll scaffolds prepared with a Coll:HA mixing ratio of 1:2, and pure HA sponges, were comparable with brain tissue. Neural stem cells (NSCs) were expanded in number in monolayer culture and then seeded onto the three-dimensional scaffolds in order to investigate the effects of the different types of scaffolds on neurogenic induction of the cells. This study contributes to the understanding of the effects of HA content and crosslink treatment on pore characteristics, and mechanical behavior essential for the design of HA-Coll scaffolds suitable for NSC growth and differentiation for brain tissue engineering.
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Wang TW, Wu HC, Wang HY, Lin FH, Sun JS. Regulation of adult human mesenchymal stem cells into osteogenic and chondrogenic lineages by different bioreactor systems. J Biomed Mater Res A 2009; 88:935-46. [PMID: 18384159 DOI: 10.1002/jbm.a.31914] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of this study was to examine the feasibility of expanding and regulating mesenchymal stem cells (MSCs) from isolated adult human bone marrow mononuclear cells, seeded on gelatin-hyaluronic acid biomatrices, and then to quantitatively compare the gene expression in three different culture systems. Individual and interactive effects of model system parameters on construct structure, function, and molecular properties were evaluated. The results showed that these adult human MSCs even at old age not only expressed primitive mesenchymal cell markers but also maintained a high level of colony-forming efficiency and were capable of differentiating into osteoblasts, chondrocytes, and adipocytes upon appropriate inductions. After 21 days of culture, we found that the osteoblastic and chondrocytic lineage gene expression were earlier and higher expressed in spinner flask bioreactor culture group when compared with the static culture and rotating wall vessel reactor culture. The osteogenic lineage proteins type I collagen, alkaline phosphatase, and osteocalcin were strongly stained in histological sections of spinner flask bioreactor culture, whereas these were less detected in the other two groups, especially in rotating wall vessel reactor culture. As for the markers associated with the chondrogenic lineage differentiation proteins, type II collagen was apparently expressed in spinner flask culture group, while the expression of proteoglycans (aggreacan, decorin) in three culture conditions took the lead of each other. We conclude that the spinner flask bioreactor with appropriate induction medium reported in this study may be used to rapidly expand adult MSCs and is likely to possess better induction results toward osteoblastic and chondrocytic lineages.
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Affiliation(s)
- Tzu-Wei Wang
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
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45
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Powell HM, Boyce ST. Fiber density of electrospun gelatin scaffolds regulates morphogenesis of dermal-epidermal skin substitutes. J Biomed Mater Res A 2008; 84:1078-86. [PMID: 17685398 DOI: 10.1002/jbm.a.31498] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Porous, nowoven fibrous gelatin scaffolds were prepared using electrospinning. Electrospun scaffolds with varying fiber diameter, interfiber distance, and porosity were fabricated by altering the concentration of the electrospinning solution. Solution concentration was a significant predictor of fiber diameter, interfiber distance, and porosity with higher solution concentration correlated with larger fiber diameters and interfiber distances. The potential of electrospun gelatin as a scaffolding material for dermal and epidermal tissue regeneration was also evaluated. Interfiber distances >5.5 microm allowed deeper penetration of human dermal fibroblasts into the scaffold, whereas cells in scaffolds with more densely packed fibers were able to infiltrate only into the upper regions. Scaffolds with interfiber distances </=10 microm exhibited well-stratified dermal and epidermal layers including a continuous basal keratinocyte layer. These scaffolds were shown to form a keratinized layer like in normal skin, which acts as a barrier to infection and fluid loss. Interfiber distances between 5 and 10 microm appear to yield the most favorable skin substitute in vitro, demonstrating high cell viability, optimal cell organization, and excellent barrier formation. These results demonstrate the feasibility of electrospun gelatin as a scaffold for dermal-epidermal composite skin substitutes.
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Affiliation(s)
- H M Powell
- Research Department, Shriners Burns Hospital, 3229 Burnet Ave., Cincinnati, Ohio 45229, USA.
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Mattioli-Belmonte M, Vozzi G, Kyriakidou K, Pulieri E, Lucarini G, Vinci B, Pugnaloni A, Biagini G, Ahluwalia A. Rapid-prototyped and salt-leached PLGA scaffolds condition cell morpho-functional behavior. J Biomed Mater Res A 2008; 85:466-76. [PMID: 17729257 DOI: 10.1002/jbm.a.31483] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Three dimensional scaffolds microfabricated using pressure-assisted microsyringe (PAM) with controlled geometry and porous membranes obtained using salt leaching were both tested with three different cell types to identify an optimal microstructural architecture for tissue engineering. MG63 (osteoblast-like cells) were used as models of mesenchymal bone tissue and human endothelial cells and NCTC2544 (keratinocytes) represented two epithelial tissues. Both porosity and stiffness of PLGA structures were measured, and cell morphology and cytoskeletal organization analyzed using SEM and actin labeling. The results show that overall the PAM scaffolds, which have a repeated and regular microstructure, are more biocompatible than the random pore salt-leached membranes, and that surface morphology as well as substrate stiffness modulates cell behavior.
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Affiliation(s)
- M Mattioli-Belmonte
- Institue of Normal Human Morphology, Polytechnic University of Marche, Ancona, Italy
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Van Vlierberghe S, Dubruel P, Lippens E, Masschaele B, Van Hoorebeke L, Cornelissen M, Unger R, Kirkpatrick CJ, Schacht E. Toward modulating the architecture of hydrogel scaffolds: curtains versus channels. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:1459-1466. [PMID: 18299964 DOI: 10.1007/s10856-008-3375-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2007] [Accepted: 01/04/2008] [Indexed: 05/26/2023]
Abstract
The design, development and evaluation of biomaterials that can sustain life or restore a certain body function, is a very important and rapidly expanding field in materials science. A key issue in the development of biomaterials is the design of a material that mimics the natural environment of cells. In the present work, we have therefore developed hydrogel materials that contain both a protein (gelatin) and a glycosaminoglycan (chondroitin sulphate) component. To enable a permanent crosslinking, gelatin and chondroitin sulphate were first chemically modified using methacrylic anhydride. Hydrogels containing modified gelatin (gel-MOD) and/or chondroitin sulphate (CS-MOD) were cryogenically treated as optimised earlier for gel-MOD based hydrogels (Van Vlierberghe et al., Biomacromolecules 8:331-337, 2007). The cryogenic treatment leads to tubular pores for gel-MOD based systems. For CS-MOD based hydrogels and hydrogels containing both gel-MOD and CS-MOD, a curtain-like architecture (i.e. parallel plates) was observed, depending on the applied CS-MOD concentration. In our opinion, this is the first paper in which such well-defined scaffold architectures have been obtained without using rapid prototyping techniques.
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Affiliation(s)
- S Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Krijgslaan 281 S4-bis, 9000 Ghent, Belgium
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Schlötzer-Schrehardt U, Dietrich T, Saito K, Sorokin L, Sasaki T, Paulsson M, Kruse FE. Characterization of extracellular matrix components in the limbal epithelial stem cell compartment. Exp Eye Res 2007; 85:845-60. [PMID: 17927980 DOI: 10.1016/j.exer.2007.08.020] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Revised: 08/22/2007] [Accepted: 08/23/2007] [Indexed: 12/13/2022]
Abstract
A specialized microenvironment or niche, which regulates maintenance, self-renewal, activation, and proliferation of stem cells by external signals, is one of the key prerequisites for stem cell function. However, the parameters determining the limbal stem cell niche are not yet defined. In order to characterize the role of basement membrane (BM) and extracellular matrix components in the generation of a microenvironmental niche for limbal stem and progenitor cells, we extensively analyzed the topographical variations of the BM zone of human ocular surface epithelia using immunohistochemistry and a large panel of antibodies to most of the presently described intrinsic and associated BM components. Apart from BM components uniformly expressed throughout all ocular surface epithelia (e.g. type IV collagen alpha5 and alpha6 chains, collagen types VII, XV, XVII, and XVIII, laminin-111, laminin-332, laminin chains alpha3, beta3,and gamma2, fibronectin, matrilin-2 and -4, and perlecan), the BM of the limbal epithelium shared many similarities with that of the conjunctival epithelium, including positive labelling for type IV collagen alpha1 and alpha2 chains, laminin alpha5, beta2, and gamma1 chains, nidogen-1 and -2, and thrombospondin-4, whereas type IV collagen alpha3, type V collagen, fibrillin-1 and -2, thrombospondin-1, and endostatin were present in the corneal BM, but lacking or more weakly expressed in the limbal and conjunctival BMs. As compared to both the corneal and conjunctival BMs, the limbal BM showed a markedly increased immunoreactivity for laminin alpha1, alpha2, beta1 chains, and agrin, and a specific but patchy immunoreactivity for laminin gamma3 chain, BM40/SPARC, and tenascin-C, which co-localized with ABCG2/p63/K19-positive and K3/Cx43/desmoglein/integrin-alpha2-negative cell clusters comprising putative stem and early progenitor cells in the basal epithelium of the limbal palisades. Components that were particularly expressed in the corneal-limbal transition zone included type XVI collagen, fibulin-2, tenascin-C/R, vitronectin, bamacan, chondroitin sulfate, and versican, all of which co-localized with vimentin-positive cell clusters comprising putative late progenitor cells in the basal epithelium. This pronounced heterogeneity of the BM in the limbal area, both in the region of limbal palisades and the corneal-limbal transition zone, appears to be involved in providing unique microenvironments for corneal epithelial stem and late progenitor cells. Identification of specific niche parameters might not only help to understand limbal stem cell regulation, but also to improve their selective enrichment and in vitro expansion for therapeutic strategies.
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Affiliation(s)
- U Schlötzer-Schrehardt
- Department of Ophthalmology, University of Erlangen-Nürnberg, Schwabachanlage 6, D-91054 Erlangen, Germany.
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Malchesky PS. Artificial Organs 2006: a year in review. Artif Organs 2007; 31:225-41. [PMID: 17343699 DOI: 10.1111/j.1525-1594.2007.00370.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul S Malchesky
- Artificial Organs Editorial Office, 10 West Erie Street, Painesville, OH 44077, USA.
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Wang TW, Sun JS, Wu HC, Huang YC, Lin FH. Evaluation and biological characterization of bilayer gelatin/chondroitin-6-sulphate/hyaluronic acid membrane. J Biomed Mater Res B Appl Biomater 2007; 82:390-9. [PMID: 17245743 DOI: 10.1002/jbm.b.30744] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A biodegradable polymer scaffold was developed using gelatin, chondroitin-6-sulphate, and hyaluronic acid in the form of bilayer network. The bilayer porous structure of gelatin-chondroitin-6-sulphate-hyaluronic acid (G-C6S-HA) membrane was fabricated using different freezing temperatures followed by lyophilization. 1-Ethyl-3(3-dimethylaminopropyl) carbodiimide was used as crosslinking agent to improve the biological stability of the scaffold. The morphology, physical-chemical properties, and biocompatibility of bilayer G-C6S-HA membrane were evaluated in this study. The functional groups change in crosslinked G-C6S-HA scaffold was characterized by fourier transform infrared spectroscopy. The retention of glycosaminoglycan contents and matrix degradation rate were also examined by p-dimethylamino benzaldehyde and 2,4,6-trinitrobenzene sulphonic acid, respectively. Water absorption capacity was carried out to study G-C6S-HA membrane water containing characteristics. The morphology of the bilayer G-C6S-HA membrane was investigated under scanning electron microscope and light microscopy. In vitro biocompatibility was conducted with MTT test, LDH assay, as well as histological analysis. The results showed that the morphology of bilayer G-C6S-HA membrane was well reserved. The physical-chemical properties were also adequate. With good biocompatibility, this bilayer G-C6S-HA membrane would be suitable as a matrix in the application of tissue engineering.
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Affiliation(s)
- Tzu-Wei Wang
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
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