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Bhat HF, Amin N, Nasir Z, Nazir S, Bhat ZF, Malik AA, Ganai NA, Andrabi SM, Shah RA, Aadil RM, Sofi AH, Abdi G. Keratin as an effective coating material for in vitro stem cell culture, induced differentiation and wound healing assays. Heliyon 2024; 10:e27197. [PMID: 38463859 PMCID: PMC10923720 DOI: 10.1016/j.heliyon.2024.e27197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/16/2024] [Accepted: 02/26/2024] [Indexed: 03/12/2024] Open
Abstract
The utilization of stem cells in tissue engineering holds great promise as efficient tools for tissue regeneration and in treating numerous musculoskeletal diseases. However, several limiting factors, such as precise delivery and control of differentiation of these stem cells as well as mimicking the microenvironment required to modulate stem cell behaviour in-vivo, have given rise to an urgent need for the development of new biomaterials which could be tailored to enhance cell renewal and/or direct cell fates. Keratin-rich biological materials offer several advantages, such as biocompatibility, tailorable mechanical properties, huge bioavailability, non-toxicity, non-immunogenic, and intrinsic tissue repair and/or regeneration capabilities, which makes them highly valued. In the present work, we report the preparation of keratin-based bio-materials from goat hair waste and its effectiveness as a coating material for in vitro culture and induced differentiation of mesenchymal stem cells (MSC's) and primary goat fibroblast cells. Since no known keratinase enzymes are expressed as such in human and/or animal systems, these keratin biomaterials could be used to slow the rate of degradation and deliver keratin-loaded stem cell scaffolds to induce their directed differentiation in vivo. The generated keratin materials have been characterized for surface morphology, protein structures, size and other properties using SDS-PAGE, LC/MS-MS, SEM, FTIR etc. Also, in vitro cell culture assays such as cell adhesion, viability using MTT, live dead assays, differentiation assays and in vitro scratch/wound healing assays were performed. Our results provide important data supporting tissue engineering applications of these keratinous biomaterials by combining the unique biological characteristics of goat hair-derived keratin material with the regenerative power of stem cells and their combinatorial use in applications such as disease treatment and injury repair as well as their use in the preparation of wound healing products, such as dressings and bandages, for management of clinical care in animals.
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Affiliation(s)
- Hina F. Bhat
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - Nuzhat Amin
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
- Department of Biotechnology, BGSB University, Rajouri, J&K, India
| | - Zarka Nasir
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - Saba Nazir
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - Zuhaib F. Bhat
- Division of Livestock Products Technology, SKUAST-Jammu, J&K, India
| | - Abrar A. Malik
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - Nazir A. Ganai
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - S. Mudasir Andrabi
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - Riaz A. Shah
- Division of Animal Biotechnology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Asif H. Sofi
- Division of Livestock Products Technology, SKUAST-Kashmir, Srinagar, J&K, 190006, India
| | - Gholamreza Abdi
- Department of Biotechnology, Persian Gulf Research Institute, Persian Gulf University, 75169, Iran
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2
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Zhao Z, Chua HM, Lai HY, Ng KW. A facile method to fabricate versatile keratin cryogels for tissue engineering applications. Biomed Mater 2024; 19:025048. [PMID: 38364277 DOI: 10.1088/1748-605x/ad2a3f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
Human hair keratin (HHK) has been extensively explored as a biomaterial for soft tissue regeneration due to their excellent bioactivity and biocompatibility. The possibility to fabricate HHK into three-dimensional (3D) hydrogels with physical properties resembling soft tissues has been well demonstrated. However, conventional keratin hydrogels often exhibit a dense architecture that could hinder cell filtration. In the present study, HHK-based cryogels were fabricated using a freeze-thaw (FT) method, where oxidized dopamine (ODA) was employed to covalently crosslink thiol/amine rich-keratin molecules at sub-zero temperatures. The obtained HHK-ODA cryogels have micron-sized pores ranging between 100 and 200 μm and mechanical properties that can be tuned by varying the crosslinking density between ODA and HHK. Through optimization of the weight content of ODA and the number of FT cycles, the compressive strengths and stiffnesses of these cryogels achieved 15-fold increments from ∼1.5 kPa to ∼22 kPa and ∼300 Pa to ∼5000 Pa, respectively. The HHK-ODA cryogels competently supported human dermal fibroblast spreading and proliferation. Overall, this study exhibited a facile method to fabricate mechanically superior keratin-based cryogels with cell compatible microarchitecture, circumventing the need for complicated chemical modifications and the use of cytotoxic crosslinkers.
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Affiliation(s)
- Zhitong Zhao
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Huei Min Chua
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Hui Ying Lai
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- Nanyang Environment and Water Research Institute (NEWRI), Singapore, Singapore
- Skin Research Institute of Singapore (SRIS), Singapore, Singapore
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3
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Wu KY, Fujioka JK, Goodyear E, Tran SD. Polymers and Biomaterials for Posterior Lamella of the Eyelid and the Lacrimal System. Polymers (Basel) 2024; 16:352. [PMID: 38337241 DOI: 10.3390/polym16030352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The application of biopolymers in the reconstruction of the posterior lamella of the eyelid and the lacrimal system marks a significant fusion of biomaterial science with clinical advancements. This review assimilates research spanning 2015 to 2023 to provide a detailed examination of the role of biopolymers in reconstructing the posterior lamella of the eyelid and the lacrimal system. It covers the anatomy and pathophysiology of eyelid structures, the challenges of reconstruction, and the nuances of surgical intervention. This article progresses to evaluate the current gold standards, alternative options, and the desirable properties of biopolymers used in these intricate procedures. It underscores the advancements in the field, from decellularized grafts and acellular matrices to innovative natural and synthetic polymers, and explores their applications in lacrimal gland tissue engineering, including the promise of 3D bioprinting technologies. This review highlights the importance of multidisciplinary collaboration between material scientists and clinicians in enhancing surgical outcomes and patient quality of life, emphasizing that such cooperation is pivotal for translating benchtop research into bedside applications. This collaborative effort is vital for restoring aesthetics and functionality for patients afflicted with disfiguring eyelid diseases, ultimately aiming to bridge the gap between innovative materials and their clinical translation.
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Affiliation(s)
- Kevin Y Wu
- Department of Surgery, Division of Ophthalmology, University of Sherbrooke, Sherbrook, QC J1G 2E8, Canada
| | - Jamie K Fujioka
- Faculty of Medicine, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Emilie Goodyear
- Department of Ophthalmology, Faculty of Medicine, Université de Montréal, Montreal, QC H3C 3J7, Canada
- Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC H2X 0A9, Canada
- Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC H3T 1C5, Canada
| | - Simon D Tran
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC H3A 1G1, Canada
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4
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Ashna M, Senthilkumar N, Sanpui P. Human Hair Keratin-Based Hydrogels in Regenerative Medicine: Current Status and Future Directions. ACS Biomater Sci Eng 2023; 9:5527-5547. [PMID: 37734053 DOI: 10.1021/acsbiomaterials.3c00883] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Regenerative medicine (RM) is a multidisciplinary field that utilizes the inherent regenerative potential of human cells to generate functionally and physiologically acceptable human cells, tissues, and organs in vivo or ex vivo. An appropriate biomaterial scaffold with desired physicochemical properties constitutes an important component of a successful RM approach. Among various forms of biomaterials explored until the present day, hydrogels have emerged as a versatile candidate for tissue engineering and regenerative medicine (TERM) applications such as scaffolds for spatial patterning and delivering therapeutic agents, or substrates to enhance cell growth, differentiation, and migration. Although hydrogels can be prepared from a variety of synthetic polymers as well as biopolymers, the latter are preferred for their inherent biocompatibility. Specifically, keratins are fibrous proteins that have been recently explored for constructing hydrogels useful for RM purposes. The present review discusses the suitability of keratin-based biomaterials in RM, with a particular focus on human hair keratin hydrogels and their use in various RM applications.
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Affiliation(s)
- Mymuna Ashna
- Department of Biotechnology, BITS Pilani Dubai Campus, Dubai International Academic City, Dubai, United Arab Emirates
| | - Neeharika Senthilkumar
- Department of Biotechnology, BITS Pilani Dubai Campus, Dubai International Academic City, Dubai, United Arab Emirates
| | - Pallab Sanpui
- Department of Biotechnology, BITS Pilani Dubai Campus, Dubai International Academic City, Dubai, United Arab Emirates
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5
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Bartoli M, Piatti E, Tagliaferro A. A Short Review on Nanostructured Carbon Containing Biopolymer Derived Composites for Tissue Engineering Applications. Polymers (Basel) 2023; 15:polym15061567. [PMID: 36987346 PMCID: PMC10056897 DOI: 10.3390/polym15061567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/16/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
The development of new scaffolds and materials for tissue engineering is a wide and open realm of material science. Among solutions, the use of biopolymers represents a particularly interesting area of study due to their great chemical complexity that enables creation of specific molecular architectures. However, biopolymers do not exhibit the properties required for direct application in tissue repair-such as mechanical and electrical properties-but they do show very attractive chemical functionalities which are difficult to produce through in vitro synthesis. The combination of biopolymers with nanostructured carbon fillers could represent a robust solution to enhance composite properties, producing composites with new and unique features, particularly relating to electronic conduction. In this paper, we provide a review of the field of carbonaceous nanostructure-containing biopolymer composites, limiting our investigation to tissue-engineering applications, and providing a complete overview of the recent and most outstanding achievements.
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Affiliation(s)
- Mattia Bartoli
- Center for Sustainable Future Technologies (CSFT), Istituto Italiano di Tecnologia (IIT), Via Livorno 60, 10144 Turin, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Florence, Italy
| | - Erik Piatti
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Alberto Tagliaferro
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Florence, Italy
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
- Faculty of Science, Ontario Tech University, 2000 Simcoe Street North, Oshawa, ON L1G 0C5, Canada
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6
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Yan Y, Ji Q, Fu R, Liu C, Yang J, Yin X, Li Q, Huang R. Biomaterials and tissue engineering strategies for posterior lamellar eyelid reconstruction: Replacement or regeneration? Bioeng Transl Med 2023. [DOI: 10.1002/btm2.10497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Affiliation(s)
- Yuxin Yan
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Qiumei Ji
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Rao Fu
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Chuanqi Liu
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Jing Yang
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xiya Yin
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Department of Plastic and Burn Surgery West China Hospital, Sichuan University Chengdu China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Ru‐Lin Huang
- Department of Plastic and Reconstructive Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
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7
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Borrelli M, Witt J, Roth M, Reichl S, Bradenbrink P, Schoppe M, Schrader S, Geerling G. Keratin films for ocular surface reconstruction: Wound healing in an in-vivo model. Exp Eye Res 2023; 227:109356. [PMID: 36563893 DOI: 10.1016/j.exer.2022.109356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/16/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
The most commonly used tissue substitute for ocular surface reconstruction is human amniotic membrane (AM). Because of its low biomechanical strength and intransparency there is a need to search for alternatives of consistent quality. This study, further explored the biocompatibility of Keratin Film (KF) and its ability to sustain corneal epithelial wound healing. In three equal groups of 5 New Zeeland white rabbits a 4 mm superficial keratectomy was created in the right eye. Five eyes received a KF, five a human AM graft and the remaining five no implant. All eyes were treated with ofloxacin and dexamethasone eye drops and followed up for 10 days. Corneal fluorescein staining, vascularization, and transparency were assessed using slit lamp biomicroscopy according to a standardized grading score during and at the end of follow-up. The corneal-scleral-button was excised and processed for histology. After 10 days all eyes which had received a KF showed complete epithelial healing and no signs of neovascularization. In the AM group 1 eye showed a persistent epithelial defect at day 10 and 2 eyes showed neovascularization at day 7 resolving at day 10. Transparency improved progressively both in the KF group as well as in the AM group towards the end of the follow. Histology showed a multilayer epithelium firmly adherent to the KF with no evidence of keratocyte migration or inflammatory reaction in the corneal stroma. In this study on rabbit eyes KF better supported corneal epithelial wound healing than amniotic membrane.
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Affiliation(s)
- M Borrelli
- Department of Ophthalmology, University of Duesseldorf, Germany.
| | - J Witt
- Department of Ophthalmology, University of Duesseldorf, Germany
| | - M Roth
- Department of Ophthalmology, University of Duesseldorf, Germany
| | - S Reichl
- Institute of Pharmaceutical Technology, Technical University of Braunschweig, Germany
| | - P Bradenbrink
- Department of Ophthalmology, University of Duesseldorf, Germany
| | - M Schoppe
- Department of Pathology, University of Duesseldorf, Germany
| | - S Schrader
- Department of Ophthalmology, Carl von Ossietzky University Oldenburg, Germany
| | - G Geerling
- Department of Ophthalmology, University of Duesseldorf, Germany
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8
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Krivolapova DA, Andreev AY, Osidak EO, Budnikova EA. [Methods of surgical reconstruction of the conjunctiva]. Vestn Oftalmol 2023; 139:136-143. [PMID: 38235640 DOI: 10.17116/oftalma2023139061136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Reconstruction of the conjunctiva is required for restoration of damaged ocular surface and is an essential part of that process. Traumas, chemical and thermal burns, multiple surgical intervention can seriously damage the integrity of conjunctival tissue and promote the growth of fibrous tissue, scarring of contractures and their shortening, as well as other complications such as trichiasis, erosion and ulcers on the cornea. When a larger area is affected, there may not be enough donor tissue to replace the defect, in which case the tissue grafts are required to be large enough. Modern modifications of surgical techniques and the continued development of tissue engineering, as well as advancements in stem cell research offer promising novel alternatives for solution of those problems. This article reviews the existing surgical methods of conjunctival reconstruction.
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Affiliation(s)
| | - A Yu Andreev
- Krasnov Research Institute of Eye Diseases, Moscow, Russia
| | - E O Osidak
- Dmitry Rogachev National Medical Research Center Of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - E A Budnikova
- Krasnov Research Institute of Eye Diseases, Moscow, Russia
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9
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Nano/micro-formulations of keratin in biocomposites, wound healing and drug delivery systems; recent advances in biomedical applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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10
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Menzel-Severing J, Spaniol K, Groeber-Becker F, Geerling G. [Regenerative medicine for the corneal epithelium : Cell therapy from bench to bedside]. DIE OPHTHALMOLOGIE 2022; 119:891-901. [PMID: 35925345 DOI: 10.1007/s00347-022-01674-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
In the case of thermal or caustic burns of the ocular surface, loss of limbal epithelial stem cells leads to compromised self-renewal of the corneal epithelium. This results in permanent loss of vision. In these situations, transplantation of cultured limbal epithelial cells on an amniotic membrane or fibrin gel as substrate (Holoclar®) can help to regenerate the corneal surface. The required cells are obtained from the healthy partner eye, if available. Adult stem cells from other parts of the body potentially serve as alternative cell sources: hair follicles, oral mucosa, mesenchymal stromal cells, or induced pluripotent stem cells (originally, e.g., skin fibroblasts). The reprogramming of such cells can be achieved with the help of transcription factors. In addition, work is being done on biosynthetic or synthetic matrices, which not only serve as substrate material for the transplantation but also support the functional properties of these cells (self-renewal, corneal epithelial-typical phenotype).
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Affiliation(s)
- Johannes Menzel-Severing
- Klinik für Augenheilkunde, Universitätsklinikum Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Deutschland.
| | - Kristina Spaniol
- Klinik für Augenheilkunde, Universitätsklinikum Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Deutschland
| | - Florian Groeber-Becker
- Translationszentrum Regenerative Therapien | TLZ-RT, Leitung In-vitro-Testsysteme, Fraunhofer-Institut für Silicatforschung ISC, Würzburg, Deutschland
| | - Gerd Geerling
- Klinik für Augenheilkunde, Universitätsklinikum Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Deutschland
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Sarma A. Biological importance and pharmaceutical significance of keratin: A review. Int J Biol Macromol 2022; 219:395-413. [DOI: 10.1016/j.ijbiomac.2022.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/08/2021] [Accepted: 08/01/2022] [Indexed: 01/14/2023]
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Brodin E, Boehmer M, Prentice A, Neff E, McCoy K, Mueller J, Saul J, Sparks JL. Extrusion 3D printing of keratin protein hydrogels free of exogenous chemical agents. Biomed Mater 2022; 17. [PMID: 35793683 DOI: 10.1088/1748-605x/ac7f15] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 07/06/2022] [Indexed: 11/11/2022]
Abstract
Keratins are a class of intermediate filament proteins that can be obtained from numerous sources including human hair. Materials fabricated from keratins offer desirable characteristics as scaffolds for tissue engineering, including intrinsic cell adhesion sequences and tunable degradation kinetics. The capacity to create 3D printed constructs from keratin-based bio-inks generates unique opportunities for spatial control of scaffold physicochemical properties to direct scaffold functions in ways not readily achieved through other means. The aim of this study was to leverage the controllable rheological properties of keratin hydrogels to create a strategy for extrusion 3D printing of keratin bio-inks without the use of exogenous rheological modifiers, crosslinking agents, or photocurable resins. The rheological properties of keratin hydrogels were tuned by varying two parameters: (a) the ratio of keratose (obtained by oxidative extraction of keratin) to kerateine (obtained by reductive extraction of keratin); and (b) the weight percentage of total keratin protein in the gel. A computational model of the dispensing nozzle for a commercially available extrusion 3D printer was developed to calculate the needed pneumatic printing pressures based on the known rheological properties of the gels. Keratin hydrogel constructs, of varying keratose/kerateine ratios and total keratin weight percentages, were 3D printed in cylindrical geometries via extrusion 3D printing. Rheology and degradation studies showed that gels with greater relative kerateine content exhibited greater flow resistance and slower degradation kinetics when submerged in phosphate buffered saline solution at 37 °C, owing to the presence of cysteine residues in kerateine and the capability of forming disulfide bonds. Total keratin weight percentage was found to influence gel yield stress, with possible implications for tuning filament fidelity. Findings from this work support the use of keratose/kerateine ratio and total keratin weight percentage as handles for modulating rheological characteristics of keratin hydrogels to enhance printability and control scaffold properties.
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Affiliation(s)
- Erik Brodin
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States of America
| | - Melanie Boehmer
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States of America
| | - Alexandra Prentice
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States of America
| | - Emily Neff
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States of America
| | - Kathleen McCoy
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States of America
| | - Jens Mueller
- High Performance Computing Services, Miami University, Oxford, OH, United States of America
| | - Justin Saul
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States of America
| | - Jessica L Sparks
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States of America
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13
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Vitus V, Ibrahim F, Wan Kamarul Zaman WS. Valorization of Human Hair and Its Derivatives in Tissue Engineering: A Review. Tissue Eng Part C Methods 2022; 28:529-544. [PMID: 35350873 DOI: 10.1089/ten.tec.2021.022333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human hair is a potential biomaterial for biomedical applications. Improper disposal of human hair may pose various adverse effects on the environment and human health. Therefore, proper management of human hair waste is pivotal. Human hair fiber and its derivatives offer various advantages as biomaterials such as biocompatibility, biodegradability, low toxicity, radical scavenging, electroconductivity, and intrinsic biological activity. Therefore, the favorable characteristics of human hair have rendered its usage in tissue engineering (TE) applications including skin, cardiac, nerve, bone, ocular, and periodontal. Moreover, the strategies by utilizing human hair as a biomaterial for TE applications may reduce the accumulation of human hair. Thus, it also improves human hair waste management while promoting natural, environmental-friendly, and nontoxic materials. Furthermore, promoting sustainable materials production will benefit human health and well-being. Hence, this article reviews and discusses human hair characteristics as sustainable biomaterials and their recent application in TE applications. Impact Statement This review article highlights the sustainability aspects of human hair as raw biomaterials and various elements of human hair that could potentially be used in tissue engineering (TE) applications. Furthermore, this article discusses numerous benefits of human hair, highlighting its value as biomaterials in bioscaffold development for TE applications. Moreover, this article reviews the role and effect of human hair in various TE applications, including skin, cardiac, nerve, bone, ocular, and periodontal.
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Affiliation(s)
- Vieralynda Vitus
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia.,Department of Biomedical Engineering, Faculty of Engineering, Centre for Innovation in Medical Engineering (CIME), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Fatimah Ibrahim
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia.,Department of Biomedical Engineering, Faculty of Engineering, Centre for Innovation in Medical Engineering (CIME), Universiti Malaya, Kuala Lumpur, Malaysia.,Centre for Printable Electronics, Institute for Advanced Studies (IAS), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Wan Safwani Wan Kamarul Zaman
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia.,Department of Biomedical Engineering, Faculty of Engineering, Centre for Innovation in Medical Engineering (CIME), Universiti Malaya, Kuala Lumpur, Malaysia
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14
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Yan RR, Gong JS, Su C, Liu YL, Qian JY, Xu ZH, Shi JS. Preparation and applications of keratin biomaterials from natural keratin wastes. Appl Microbiol Biotechnol 2022; 106:2349-2366. [DOI: 10.1007/s00253-022-11882-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 03/08/2022] [Accepted: 03/12/2022] [Indexed: 12/20/2022]
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15
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Schwab R, Reichl S. Dexamethasone-loaded keratin films for ocular surface reconstruction. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:29. [PMID: 35244790 PMCID: PMC9050765 DOI: 10.1007/s10856-021-06638-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Amniotic membrane (AM) is often applied as a substitute material during ocular surface reconstruction. However, since AM has several disadvantages, alternative materials must be considered for this application. Keratin films made from human hair (KFs) have previously been presented as a promising option; they exhibited suitable characteristics and satisfactory biocompatibility in an in vivo rabbit model. Nevertheless, dexamethasone (DEX) eye drops are necessary after surgery to suppress inflammation. Since eye drops must be administered frequently, this might result in poor patient compliance, and the release of DEX at the transplant site would be clinically beneficial. Therefore, we aimed to incorporate DEX into KFs without hindering the positive film characteristics. Drug-loaded KFs were generated either by suspension technique or by the addition of solubilizing agents. The resulting specimens were analyzed regarding appearance, loading capacity, transparency, mechanical characteristics, swelling behavior and in vitro release. Furthermore, biocompatibility was assessed in vitro by determining the cell viability, seeding efficiency and growth behavior of corneal epithelial cells. The amount of incorporated DEX influenced the transparency and biomechanical properties of the films, but even highly loaded films showed properties similar to those of AM. The suspension technique was identified as the best incorporation approach regarding chemical stability and prolonged DEX release. Moreover, suspended DEX in the films did not negatively impact cell seeding efficiencies, and the cell-growth behaviors on the specimens with moderate DEX loads were satisfactory. This suggest that these films could comprise a suitable alternative material with additional anti-inflammatory activity for ocular surface reconstruction. Graphical abstract.
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Affiliation(s)
- Rebekka Schwab
- Institut für Pharmazeutische Technologie, Technische Universität Braunschweig, Braunschweig, Germany
| | - Stephan Reichl
- Institut für Pharmazeutische Technologie, Technische Universität Braunschweig, Braunschweig, Germany.
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16
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Zhao Z, Chua HM, Goh BHR, Lai HY, Tan SJ, Moay ZK, Setyawati MI, Ng KW. Anisotropic hair keratin-dopamine composite scaffolds exhibit strain-stiffening properties. J Biomed Mater Res A 2021; 110:92-104. [PMID: 34254735 DOI: 10.1002/jbm.a.37268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 06/19/2021] [Accepted: 06/29/2021] [Indexed: 11/06/2022]
Abstract
Human hair keratin (HHK) has been successfully explored as raw materials for three-dimensional scaffolds for soft tissue regeneration due to its excellent biocompatibility and bioactivity. However, none of the reported HHK based scaffolds is able to replicate the strain-stiffening capacity of living tissues when responding to large deformations. In the present study, strain-stiffening property was achieved in scaffolds fabricated from HHK via a synergistic effect of well-defined, aligned microstructure and chemical crosslinking. Directed ice-templating method was used to fabricate HHK-based scaffolds with highly aligned (anisotropic) microstructure while oxidized dopamine (ODA) was used to crosslink covalently to HHKs. The resultant HHK-ODA scaffolds exhibited strain-stiffening behavior characterized by the increased gradient of the stress-strain curve after the yield point. Both ultimate tensile strength and the elongation at break were enhanced significantly (~700 kPa, ~170%) in comparison to that of HHK scaffolds lacking of aligned microstructure or ODA crosslinking. In vitro cell culture studies indicated that HHK-ODA scaffolds successfully supported human dermal fibroblasts (HDFs) adhesion, spreading and proliferation. Moreover, anisotropic HHK-ODA scaffolds guided cell growth in alignment with the defined microstructure as shown by the highly organized cytoskeletal networks and nuclei distribution. The findings suggest that HHK-ODA scaffolds, with strain-stiffening properties, biocompatibility and bioactivity, have the potential to be applied as biomimetic matrices for soft tissue regeneration.
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Affiliation(s)
- Zhitong Zhao
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
| | - Huei Min Chua
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
| | - Bernice Huan Rong Goh
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
| | - Hui Ying Lai
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
| | - Shao Jie Tan
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
| | - Zi Kuang Moay
- School of Materials Science and Engineering, Nanyang Technological University, Singapore
| | | | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore.,Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA.,Environmental Chemistry and Materials Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore.,Skin Research Institute of Singapore, Biomedical Science Institutes, Singapore
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17
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Kalkan Erdoğan M, Aydoğdu Tığ G, Saçak M. A novel tool for the adsorption of dsDNA: Electrochemical reduction of Pd nanoparticles onto reduced-keratin particles extracted from wool wastes. Bioelectrochemistry 2021; 140:107835. [PMID: 33984693 DOI: 10.1016/j.bioelechem.2021.107835] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/25/2021] [Accepted: 04/29/2021] [Indexed: 10/21/2022]
Abstract
This work outlines the fabrication of a novel electrochemical platform for the dsDNA adsorption, using one of the most sustainable materials, wool fabric waste, and Pd2+ ions. To develop a functional material with a significant adsorption capability, the waste wool was subjected to the chemical reduction process, and the keratin-SH (KerSH) particles were extracted in powder form. These particles were used in the adsorption of Pd2+ ions by monitoring with the UV-vis spectra. The dispersion of the KerSH-Pd2+ particles was subsequently drop-casted onto a glassy carbon electrode (GCE) and electrochemically reduced to the GCE/KerSH-PdNPs composite by chronoamperometry at -0.4 V for 500 s. It was found that the KerSH particles were self-assembled by revealing chemically attractive NH2 groups after the electrochemical PdNPs deposition. A GCE/KerSH-PdNPs composite was then employed in the electrochemical dsDNA detection by Differential Pulse Voltammetry (DPV), using the oxidation signals of guanine and adenine bases at 0.8 V and 1.2 V, respectively. Accordingly, relatively stable, repeatable, and reproducible dsDNA adsorption was ensured through the positively charged-NH2 groups of KerSH-PdNPs. This finding reveals the potential of textile waste for various electrochemical applications, such as DNA biosensors for environmental, pharmaceutical, and medicinal fields.
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Affiliation(s)
| | - Gözde Aydoğdu Tığ
- Ankara University, Faculty of Science, Department of Chemistry, Ankara, Turkey.
| | - Mehmet Saçak
- Ankara University, Faculty of Science, Department of Chemistry, Ankara, Turkey.
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18
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Khrunyk Y, Lach S, Petrenko I, Ehrlich H. Progress in Modern Marine Biomaterials Research. Mar Drugs 2020; 18:E589. [PMID: 33255647 PMCID: PMC7760574 DOI: 10.3390/md18120589] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 02/06/2023] Open
Abstract
The growing demand for new, sophisticated, multifunctional materials has brought natural structural composites into focus, since they underwent a substantial optimization during long evolutionary selection pressure and adaptation processes. Marine biological materials are the most important sources of both inspiration for biomimetics and of raw materials for practical applications in technology and biomedicine. The use of marine natural products as multifunctional biomaterials is currently undergoing a renaissance in the modern materials science. The diversity of marine biomaterials, their forms and fields of application are highlighted in this review. We will discuss the challenges, solutions, and future directions of modern marine biomaterialogy using a thorough analysis of scientific sources over the past ten years.
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Affiliation(s)
- Yuliya Khrunyk
- Department of Heat Treatment and Physics of Metal, Ural Federal University, 620002 Ekaterinburg, Russia;
- Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620990 Ekaterinburg, Russia
| | - Slawomir Lach
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland;
| | - Iaroslav Petrenko
- Institute of Electronics and Sensor Materials, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany;
| | - Hermann Ehrlich
- Institute of Electronics and Sensor Materials, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany;
- Center for Advanced Technology, Adam Mickiewicz University, 61614 Poznan, Poland
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19
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Zhao Z, Moay ZK, Lai HY, Goh BHR, Chua HM, Setyawati MI, Ng KW. Characterization of Anisotropic Human Hair Keratin Scaffolds Fabricated via Directed Ice Templating. Macromol Biosci 2020; 21:e2000314. [PMID: 33146949 DOI: 10.1002/mabi.202000314] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/12/2020] [Indexed: 01/18/2023]
Abstract
Human hair keratin (HHK) is successfully exploited as raw materials for 3D scaffolds for soft tissue regeneration owing to its excellent biocompatibility and bioactivity. However, most HHK scaffolds are not able to achieve the anisotropic mechanical properties of soft tissues such as tendons and ligaments due to lack of tunable, well-defined microstructures. In this study, directed ice templating method is used to fabricate anisotropic HHK scaffolds that are characterized by aligned pores (channels) in between keratin layers in the longitudinal plane. In contrast, pores in the transverse plane maintain a homogenous rounded morphology. Channel widths throughout the scaffolds range from ≈5 to ≈15 µm and are tunable by varying the freezing temperature. In comparison with HHK scaffolds with random, isotropic pore structures, the tensile strength of anisotropic HHK scaffolds is enhanced significantly by up to fourfolds (≈200 to ≈800 kPa) when the tensile load is applied in the direction parallel to the aligned pores. In vitro results demonstrate that the anisotropic HHK scaffolds are able to support human dermal fibroblast adhesion, spreading, and proliferation. The findings suggest that HHK scaffolds with well-defined, aligned microstructure hold promise as templates for soft tissues regeneration by mimicking their anisotropic properties.
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Affiliation(s)
- Zhitong Zhao
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Zi Kuang Moay
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Hui Ying Lai
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Bernice Huan Rong Goh
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Huei Min Chua
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Magdiel Inggrid Setyawati
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.,Center for Nanotechnology and NanotoxicologyHarvard T.H. Chan School of Public Health, Harvard University, 665 Huntington Avenue, Boston, MA, 02115, USA.,Environmental Chemistry and Materials CentreNanyang Environment and Water Research Institution, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore.,Skin Research Institute of Singapore, Biomedical Science Institutes, Immunos, 8A Biomedical Grove, Singapore, 138648, Singapore
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20
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Nowogrodski C, Simon I, Magdassi S, Shoseyov O. Fabrication of Second Skin from Keratin and Melanin. Polymers (Basel) 2020; 12:polym12112568. [PMID: 33147696 PMCID: PMC7692603 DOI: 10.3390/polym12112568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 12/28/2022] Open
Abstract
Second skin is a topically applied, skin-conforming material that mimics human skin properties and bears potential cosmetic and e-skin applications. To successfully integrate with natural skin, characteristics such as color and skin features must be matched. In this work, we prepared bio-based skin-like films from cross-linked keratin/melanin films (KMFs), using a simple fabrication method and non-toxic materials. The films retained their stability in aqueous solutions, showed skin-like mechanical properties, and were homogenous and handleable, with non-granular surfaces and a notable cross-linked structure as determined by attenuated total reflection (ATR). In addition, the combination of keratin and melanin allowed for adjustable tones similar to those of natural human skin. Furthermore, KMFs showed light transmittance and UV-blocking (up to 99%) as a function of melanin content. Finally, keratin/melanin ink (KMI) was used to inkjet-print high-resolution images with natural skin pigmented features. The KMFs and KMI may offer advanced solutions as e-skin or cosmetics platforms.
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Affiliation(s)
- Chen Nowogrodski
- Plant Molecular Biology and Nano Biotechnology, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (I.S.); (O.S.)
- Correspondence: ; Tel.:+972-8-9489761
| | - Ido Simon
- Plant Molecular Biology and Nano Biotechnology, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (I.S.); (O.S.)
| | - Shlomo Magdassi
- Casali Center of Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91905, Israel;
| | - Oded Shoseyov
- Plant Molecular Biology and Nano Biotechnology, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (I.S.); (O.S.)
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21
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Mahdavi SS, Abdekhodaie MJ, Mashayekhan S, Baradaran-Rafii A, Djalilian AR. Bioengineering Approaches for Corneal Regenerative Medicine. Tissue Eng Regen Med 2020; 17:567-593. [PMID: 32696417 PMCID: PMC7373337 DOI: 10.1007/s13770-020-00262-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/06/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Since the cornea is responsible for transmitting and focusing light into the eye, injury or pathology affecting any layer of the cornea can cause a detrimental effect on visual acuity. Aging is also a reason for corneal degeneration. Depending on the level of the injury, conservative therapies and donor tissue transplantation are the most common treatments for corneal diseases. Not only is there a lack of donor tissue and risk of infection/rejection, but the inherent ability of corneal cells and layers to regenerate has led to research in regenerative approaches and treatments. METHODS In this review, we first discussed the anatomy of the cornea and the required properties for reconstructing layers of the cornea. Regenerative approaches are divided into two main categories; using direct cell/growth factor delivery or using scaffold-based cell delivery. It is expected delivered cells migrate and integrate into the host tissue and restore its structure and function to restore vision. Growth factor delivery also has shown promising results for corneal surface regeneration. Scaffold-based approaches are categorized based on the type of scaffold, since it has a significant impact on the efficiency of regeneration, into the hydrogel and non-hydrogel based scaffolds. Various types of cells, biomaterials, and techniques are well covered. RESULTS The most important characteristics to be considered for biomaterials in corneal regeneration are suitable mechanical properties, biocompatibility, biodegradability, and transparency. Moreover, a curved shape structure and spatial arrangement of the fibrils have been shown to mimic the corneal extracellular matrix for cells and enhance cell differentiation. CONCLUSION Tissue engineering and regenerative medicine approaches showed to have promising outcomes for corneal regeneration. However, besides proper mechanical and optical properties, other factors such as appropriate sterilization method, storage, shelf life and etc. should be taken into account in order to develop an engineered cornea for clinical trials.
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Affiliation(s)
- S Sharareh Mahdavi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, 1393 Azadi Ave., Tehran, 11365-11155, Iran
| | - Mohammad J Abdekhodaie
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, 1393 Azadi Ave., Tehran, 11365-11155, Iran.
| | - Shohreh Mashayekhan
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, 1393 Azadi Ave., Tehran, 11365-11155, Iran
| | - Alireza Baradaran-Rafii
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, SBUMS, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Ali R Djalilian
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, 1200 W Harrison St, Chicago, IL, 60607, USA
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22
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Sellappan LK, Anandhavelu S, Doble M, Perumal G, Jeon JH, Vikraman D, Kim HS. Biopolymer film fabrication for skin mimetic tissue regenerative wound dressing applications. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1817019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Logesh Kumar Sellappan
- Department of Biomedical Engineering, Dr. N. G. P. Institute of Technology, Coimbatore, Tamil Nadu, India
| | - Sanmugam Anandhavelu
- Department of Chemistry, Vel Tech Multi Tech Engineering College, Chennai, Tamil Nadu, India
| | - Mukesh Doble
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Govindaraj Perumal
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Ji-Hoon Jeon
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, Republic of Korea
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, Republic of Korea
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, Republic of Korea
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23
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Feroz S, Muhammad N, Ranayake J, Dias G. Keratin - Based materials for biomedical applications. Bioact Mater 2020; 5:496-509. [PMID: 32322760 PMCID: PMC7171262 DOI: 10.1016/j.bioactmat.2020.04.007] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/27/2020] [Accepted: 04/06/2020] [Indexed: 12/22/2022] Open
Abstract
Keratin constitutes the major component of the feather, hair, hooves, horns, and wool represents a group of biological material having high cysteine content (7-13%) as compared to other structural proteins. Keratin -based biomaterials have been investigated extensively over the past few decades due to their intrinsic biological properties and excellent biocompatibility. Unlike other natural polymers such as starch, collagen, chitosan, the complex three-dimensional structure of keratin requires the use of harsh chemical conditions for their dissolution and extraction. The most commonly used methods for keratin extraction are oxidation, reduction, steam explosion, microbial method, microwave irradiation and use of ionic liquids. Keratin -based materials have been used extensively for various biomedical applications such as drug delivery, wound healing, tissue engineering. This review covers the structure, properties, history of keratin research, methods of extraction and some recent advancements related to the use of keratin derived biomaterials in the form of a 3-D scaffold, films, fibers, and hydrogels.
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Affiliation(s)
- Sandleen Feroz
- Department of Anatomy, School of Biomedical Sciences University of Otago, Otago, 9016, New Zealand
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Pakistan
| | - Jithendra Ranayake
- Department of Anatomy, School of Biomedical Sciences University of Otago, Otago, 9016, New Zealand
| | - George Dias
- Department of Anatomy, School of Biomedical Sciences University of Otago, Otago, 9016, New Zealand
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24
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Immunologische Toleranz von intraokularen Zilien nach penetrierender Hornhautverletzung. Ophthalmologe 2020; 117:914-916. [DOI: 10.1007/s00347-019-01010-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Witt J, Dietrich J, Mertsch S, Schrader S, Spaniol K, Geerling G. Decellularized porcine conjunctiva as an alternative substrate for tissue-engineered epithelialized conjunctiva. Ocul Surf 2020; 18:901-911. [PMID: 32860970 DOI: 10.1016/j.jtos.2020.08.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 12/18/2022]
Abstract
PURPOSE The long-term success of visual rehabilitation in patients with severe conjunctival scarring is reliant on the reconstruction of the conjunctiva with a suitable substitute. The purpose of this study is the development and investigation of a re-epithelialized conjunctival substitute based on porcine decellularized conjunctiva (PDC). METHODS PDC was re-epithelialized either with pre-expanded human conjunctival epithelial cells (PDC + HCEC) or with a human conjunctival explant placed directly on PDC (PDC + HCEx). Histology and immunohistochemistry were performed to evaluate epithelial thickness, proliferation (Ki67), apoptosis (Caspase 3), goblet cells (MUC5AC), and progenitor cells (CK15, ΔNp63, ABCG2). The superior construct (PDC + HCEx) was transplanted into a conjunctival defect of a rabbit (n = 6). Lissamine green staining verified the epithelialization in vivo. Orbital tissue was exenterated on day 10 and processed for histological and immunohistochemical analysis to examine the engrafted PDC + HCEx. A human-specific antibody was used to detect the transplanted cells. RESULTS From day-14 in vitro onward, a significantly thicker epithelium and greater number of cells expressing Ki67, CK15, ΔNp63, and ABCG2 were noted for PDC + HCEx versus PDC + HCEC. MUC5AC-positive cells were found only in PDC + HCEx. The PDC + HCEx-grafted rabbit conjunctivas were lissamine-negative during the evaluation period, indicating epithelial integrity. Engrafted PDC + HCEx showed preserved progenitor cell properties and an increased number of goblet cells comparable to those of native conjunctiva. CONCLUSION Placing and culturing a human conjunctival explant directly on PDC (PDC + HCEx) enables the generation of a stable, stratified, goblet cell-rich construct that could provide a promising alternative conjunctival substitute for patients with extensive conjunctival stem and goblet cell loss.
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Affiliation(s)
- Joana Witt
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Germany.
| | - Jana Dietrich
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Germany
| | - Sonja Mertsch
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Germany
| | - Stefan Schrader
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Germany
| | - Kristina Spaniol
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Germany
| | - Gerd Geerling
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Germany
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26
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Ye JP, Gong JS, Su C, Liu YG, Jiang M, Pan H, Li RY, Geng Y, Xu ZH, Shi JS. Fabrication and characterization of high molecular keratin based nanofibrous membranes for wound healing. Colloids Surf B Biointerfaces 2020; 194:111158. [PMID: 32540765 DOI: 10.1016/j.colsurfb.2020.111158] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/16/2020] [Accepted: 05/26/2020] [Indexed: 12/24/2022]
Abstract
Keratin is widely used in the biomaterial application, but the keratin prepared by the physical or chemical approach has relatively low molecular weight and mechanical properties. Here we report the preparation of high molecular keratin (HMK) with molecular weight of 120 kDa via multi-enzyme cascade pathway and its application in wound healing. Briefly, we prepared the soluble keratin from wool by keratinase and improved the molecular weight of keratin by transglutaminase (TGase). The HMK was coelectrospun with poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) (PHBV) and the prepared nanofibrous mats demonstrated improved mechanical properties. Ag nanoparticles (AgNPs) were synthesized on the nanofibers via in situ bioreduction, using the above-mentioned keratinase as the reducing agent. It is demonstrated that the PHBV/HMK/AgNPs nanofibrous mats possess favorable antibacterial properties and good biocompatibility. Moreover, in vivo wound healing assessment, the PHBV/HMK/AgNPs membrane displayed better wound healing ability than the control group. These results indicate that PHBV/HMK/AgNPs mats exhibit significant potential in tissue engineering.
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Affiliation(s)
- Jin-Peng Ye
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China
| | - Jin-Song Gong
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China.
| | - Chang Su
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China
| | - Yan-Ge Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China
| | - Min Jiang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China
| | - Huaping Pan
- Integrated Chinese and Western Medicine Oncology Research Center, Jiangxi University of Traditional Chinese Medicine, Nanchang330004, PR China
| | - Rui-Yi Li
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China
| | - Yan Geng
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China
| | - Zheng-Hong Xu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi214122, PR China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi214122, PR China
| | - Jin-Song Shi
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi214122, PR China.
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27
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Bochynska-Czyz M, Redkiewicz P, Kozlowska H, Matalinska J, Konop M, Kosson P. Can Keratin Scaffolds be used for Creating Three-dimensional Cell Cultures? Open Med (Wars) 2020; 15:249-253. [PMID: 32292820 PMCID: PMC7147289 DOI: 10.1515/med-2020-0031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/17/2020] [Indexed: 12/14/2022] Open
Abstract
Three-dimensional (3D) cell cultures were created with the use of fur keratin associated proteins (F-KAPs) as scaffolds. The procedure of preparation F-KAP involves combinations of chemical activation and enzymatic digestion. The best result in porosity and heterogeneity of F-KAP surface was received during pepsin digestion. The F-KAP had a stable structure, no changes were observed after heat treatment, shaking and washing. The 0.15-0.5 mm fraction had positive effect for formation of 3D scaffolds and cell culturing. Living rat mesenchymal cells on the F-KAP with no abnormal morphology were observed by SEM during 32 days of cell culturing.
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Affiliation(s)
- Marta Bochynska-Czyz
- Department of Neuropeptides, Mossakowski Medical Research Centre Polish Academy of Science, 02-106 Warsaw, 5 Pawinskiego Street, Poland
| | - Patrycja Redkiewicz
- Department of Neuropeptides, Mossakowski Medical Research Centre Polish Academy of Science, 02-106 Warsaw, 5 Pawinskiego Street, Poland
| | - Hanna Kozlowska
- Laboratory of Advanced Microscopy Techniques, Mossakowski Medical Research Centre Polish Academy of Sciences, 02-106 Warsaw, 5 Pawinskiego Street, Poland
| | - Joanna Matalinska
- Department of Neuropeptides, Mossakowski Medical Research Centre Polish Academy of Science, 02-106 Warsaw, 5 Pawinskiego Street, Poland
| | - Marek Konop
- Department of Neuropeptides, Mossakowski Medical Research Centre Polish Academy of Science, 02-106 Warsaw, 5 Pawinskiego Street, Poland
| | - Piotr Kosson
- Toxicology Research Laboratory, Mossakowski Medical Research Centre Polish Academy of Sciences, 02-106 Warsaw, 5 Pawinskiego Street, Poland
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Surface modified electrospun poly(lactic acid) fibrous scaffold with cellulose nanofibrils and Ag nanoparticles for ocular cell proliferation and antimicrobial application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110767. [PMID: 32279789 DOI: 10.1016/j.msec.2020.110767] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 12/14/2022]
Abstract
Corneal and conjunctival infections are common ocular diseases, sometimes, causing severe and refractory drug-resistant bacteria infections. Fungal keratitis is a leading cause for blindness and traditional medical treatment is unsatisfactory. Thus, there is an urge to develop a new therapy to deal with these cases. In this study, we developed surface modified poly(lactic acid) (PLA) electrospun nanofibrous membranes (EFMs) with silver nanoparticles (AgNPs) and cellulose nanofibrils (CNF) as scaffolds for cell proliferation and antimicrobial application. The AgNPs with a very low content (below 0.1%) were easily anchored on the surface of PLA EFMs by CNF, which endowed the scaffold with hydrophilicity and antibacterial ability. The in-vitro cell co-culture experiments showed that the scaffold had great biocompatibility to ocular epithelial cells, especially the scaffolds coated by CNF, which significantly proliferated cells. Furthermore, the antibacterial activity could reach >95% inhibiting Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) due to the implantation of AgNPs, and the antifungal activity was also outstanding with most of the Fusarium spp. inhibited. Hence, the developed PLA EFMs with CNF and AgNPs are promising ocular bandages to promote cell proliferation and kill infectious pathogens, exhibiting potential applications in ocular wound healing in the future.
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Ohmic heating as an innovative approach for the production of keratin films. Int J Biol Macromol 2020; 150:671-680. [PMID: 32061691 DOI: 10.1016/j.ijbiomac.2020.02.122] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/31/2020] [Accepted: 02/12/2020] [Indexed: 12/17/2022]
Abstract
Ohmic heating is a thermal processing method based on the application of electric fields directly into a semi-conductive medium. In this study, we explored for the first time the use of ohmic heating to obtain keratin films. The properties of the films prepared by ohmic heating and conventional heating were evaluated and compared under similar thermal profiles. A lower increase in free thiols' concentration was obtained for the keratin solutions and keratin films submitted to ohmic heating (16% increase for the keratin solution extracted from virgin hair, pH 9, submitted to ohmic heating and 23% when submitted to conventional heating). Significant differences in the swelling results were observed for the films prepared with keratin extracted from virgin hair, with a swelling decrease in about 55% for the films prepared by ohmic heating. Generally, the keratin films obtained by ohmic heating showed distinct properties comparatively to the films produced by conventional methods. The application of a fusion protein on the keratin films demonstrated their capacity to be used as substitutes to hair fibers when evaluating the potential of new cosmetic products. This work suggests that ohmic heating show potential to tailor keratin films properties depending on an intended application or functionality.
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30
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Borrelli M, Geerling G, Spaniol K, Witt J. Eye Socket Regeneration and Reconstruction. Curr Eye Res 2020; 45:253-264. [DOI: 10.1080/02713683.2020.1712423] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- M. Borrelli
- Department of Ophthalmology, University Hospital Duesseldorf, Duesseldorf, Germany
| | - G. Geerling
- Department of Ophthalmology, University Hospital Duesseldorf, Duesseldorf, Germany
| | - K. Spaniol
- Department of Ophthalmology, University Hospital Duesseldorf, Duesseldorf, Germany
| | - J. Witt
- Department of Ophthalmology, University Hospital Duesseldorf, Duesseldorf, Germany
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31
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Keratinous materials: Structures and functions in biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110612. [PMID: 32204061 DOI: 10.1016/j.msec.2019.110612] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 12/12/2019] [Accepted: 12/26/2019] [Indexed: 11/21/2022]
Abstract
Keratins are a family of fibrous proteins anticipated to possess wide-ranging biomedical applications due to their abundance, physicochemical properties and intrinsic biological activity. This review mainly focuses on the biomaterials derived from three major sources of keratins; namely human hair, wool and feather, that have effective applications in tissue engineering, wound healing and drug delivery. This article offers five viewpoints regarding keratin i) an introduction to keratin protein extraction and keratin-based scaffold fabrication methods ii) applications in nerve and bone tissue engineering iii) a review on the keratin dressings applied to different types of wounds to facilitate wound healing and thereby repair the skin iv) the utilization of keratinous materials as a carrier system for therapeutics with a controlled manner v) a discussion regarding the main challenges for using keratin in biomedical applications as well as its future prospects.
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32
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Zarei M, Tanideh N, Zare S, Aslani FS, Koohi-Hosseinabadi O, Rowshanghias A, Pourjavaheri F, Mehryar P, Muthuraj R. Electrospun poly(3-hydroxybutyrate)/chicken feather-derived keratin scaffolds: Fabrication, in vitro and in vivo biocompatibility evaluation. J Biomater Appl 2019; 34:741-752. [PMID: 31488016 DOI: 10.1177/0885328219873090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Moein Zarei
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nader Tanideh
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahrokh Zare
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Sari Aslani
- Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Aida Rowshanghias
- Shiraz Institute for Stem Cells and Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Pouyan Mehryar
- Institute of Design, Robotics and Optimisation, School of Mechanical Engineering, University of Leeds, Leeds, UK
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Witt J, Borrelli M, Mertsch S, Geerling G, Spaniol K, Schrader S. Evaluation of Plastic-Compressed Collagen for Conjunctival Repair in a Rabbit Model. Tissue Eng Part A 2019; 25:1084-1095. [DOI: 10.1089/ten.tea.2018.0190] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Joana Witt
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Maria Borrelli
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Sonja Mertsch
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Gerd Geerling
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Kristina Spaniol
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Stefan Schrader
- Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
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34
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Nagarajan S, Radhakrishnan S, Kalkura SN, Balme S, Miele P, Bechelany M. Overview of Protein‐Based Biopolymers for Biomedical Application. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900126] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sakthivel Nagarajan
- Institut Européen des Membranes, IEM–UMR 5635ENSCM, CNRS, University of Montpellier Montpellier 34090 France
| | | | | | - Sebastien Balme
- Institut Européen des Membranes, IEM–UMR 5635ENSCM, CNRS, University of Montpellier Montpellier 34090 France
| | - Philippe Miele
- Institut Européen des Membranes, IEM–UMR 5635ENSCM, CNRS, University of Montpellier Montpellier 34090 France
- Institut Universitaire de France MESRI, 1 rue Descartes, 75231 Paris cedex 05 France
| | - Mikhael Bechelany
- Institut Européen des Membranes, IEM–UMR 5635ENSCM, CNRS, University of Montpellier Montpellier 34090 France
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Gao F, Li W, Deng J, Kan J, Guo T, Wang B, Hao S. Recombinant Human Hair Keratin Nanoparticles Accelerate Dermal Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18681-18690. [PMID: 31038908 DOI: 10.1021/acsami.9b01725] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In recent years, favorable enhanced wound-healing properties and excellent biocompatibility of keratin derived from human hair have attracted considerable attention. Recombinant keratin proteins can be produced by recombinant DNA technology and have higher purity than extracted keratin. However, the wound-healing properties of recombinant keratin proteins remain unclear. Herein, two recombinant trichocyte keratins including human type I hair keratin 37 and human type II hair keratin 81 were expressed using a bacterial expression system, and recombinant keratin nanoparticles (RKNPs) were prepared via an ultrasonic dispersion method. The molecular weight, purity, and physicochemical properties of the recombinant keratin proteins and nanoparticles were assessed using gel electrophoresis, circular dichroism, mass spectrometry, and scanning electron microscope analyses. The RKNPs significantly enhanced cell proliferation and migration in vitro, and the treatment of dermal wounds in vivo with RKNPs resulted in improved wound healing associated with improved epithelialization, vascularization, and collagen deposition and remodeling. In addition, the in vivo biocompatibility test revealed no systemic toxicity. Overall, this work demonstrates that RKNPs are a promising candidate for enhanced wound healing, and this study opens up new prospects for the development of keratin biomaterials.
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Affiliation(s)
- Feiyan Gao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Wenfeng Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Jia Deng
- College of Environment and Resources , Chongqing Technology and Business University , Chongqing 400067 , China
| | - Jinlan Kan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Tingwang Guo
- College of Environment and Resources , Chongqing Technology and Business University , Chongqing 400067 , China
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Shilei Hao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
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36
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Vineis C, Varesano A, Varchi G, Aluigi A. Extraction and Characterization of Keratin from Different Biomasses. KERATIN AS A PROTEIN BIOPOLYMER 2019. [DOI: 10.1007/978-3-030-02901-2_3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Xue K, Wang X, Yong PW, Young DJ, Wu YL, Li Z, Loh XJ. Hydrogels as Emerging Materials for Translational Biomedicine. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800088] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Kun Xue
- Institute of Materials Research and Engineering; Agency for Science,; Technology and Research; 2 Fusionopolis Way, #08-03 Innovis Singapore 138634 Singapore
| | - Xiaoyuan Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology School of Pharmaceutical Sciences; Xiamen University; Xiamen 361102 China
| | - Pei Wern Yong
- Department of Materials Science and Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117575 Singapore
| | - David James Young
- Faculty of Science; Health, Education and Engineering; University of the Sunshine Coast; Maroochydore Queensland 4558 Australia
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology School of Pharmaceutical Sciences; Xiamen University; Xiamen 361102 China
| | - Zibiao Li
- Institute of Materials Research and Engineering; Agency for Science,; Technology and Research; 2 Fusionopolis Way, #08-03 Innovis Singapore 138634 Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering; Agency for Science,; Technology and Research; 2 Fusionopolis Way, #08-03 Innovis Singapore 138634 Singapore
- Department of Materials Science and Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117575 Singapore
- Singapore Eye Research Institute; 11 Third Hospital Avenue Singapore 168751 Singapore
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38
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Wan X, Wang Y, Jin X, Li P, Yuan J, Shen J. Heparinized PCL/keratin mats for vascular tissue engineering scaffold with potential of catalytic nitric oxide generation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:1785-1798. [PMID: 30035672 DOI: 10.1080/09205063.2018.1504192] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Heparins are capable of improving blood compatibility, enhancing HUVEC viability, while inhibiting HUASMC proliferation. Combination of biodegradable poly(ε-caprolactone) (PCL) with keratin and heparins would provide an anticoagulant and endothelialization supporting environment for vascular tissue engineering. Herein, PCL and keratin were first coelectrospun and then covalently conjugated with heparins. The resulting mats were surface-characterized by ATR-FTIR, SEM, WCA, and XPS. Cell viability data showed that the heparinized PCL/keratin mats could motivate the adhesion and growth of HUVEC, while inhibit HUASMC proliferation. In addition, these mats could prolong blood clotting time and reduce platelet adhesion as well as no erythrolysis. Interestingly, these mats could catalyze the NO donor in blood to release NO, which could enhance endothelial cell growth, while decrease smooth muscle cell proliferation and platelet adhesion. In summary, the heparinized mats would be a good candidate as a scaffold for vascular tissue engineering. This study is novel in that we prepared a type of heparinized tissue scaffold that could catalyze the NO donor to release NO to regulate endothelialization without angiogenesis and thrombus formation.
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Affiliation(s)
- Xiuzhen Wan
- a Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing , China
| | - Yanfang Wang
- a Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing , China
| | - Xingxing Jin
- a Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing , China
| | - Pengfei Li
- a Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing , China
| | - Jiang Yuan
- a Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing , China
| | - Jian Shen
- a Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing , China
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39
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Transparent biocompatible wool keratin film prepared by mechanical compression of porous keratin hydrogel. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:19-25. [PMID: 30033245 DOI: 10.1016/j.msec.2018.05.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 04/12/2018] [Accepted: 05/05/2018] [Indexed: 12/12/2022]
Abstract
We could prepare a transparent wool keratin film by mechanical compression of the keratin hydrogel, which was prepared by our method previously reported. Optical transmittance of the keratin film was approximately 70% at 400 nm and 80% at 550 nm. The keratin film had higher mechanical strength than the keratin hydrogel estimated from the tensile test. Young's modulus of the keratin film and that of keratin hydrogel were 0.582 ± 0.294 MPa and 0.041 ± 0.008 MPa, respectively. We evaluated degradability of keratin film by tryptic digestion in vitro and that also by implantation test in vivo. The keratin film showed slower degradation rate in the presence of trypsin in vitro, and also that as a subcutaneous implant in mouse in vivo. Biocompatibility is also a key factor for application of keratin as biomaterials. Within several days after subcutaneous implantation of the sample in mouse, an apparent symptom of acute inflammation of tissues, such as swelling of the reddish skin, was not observed. Keratin film remained in the original morphology of sheet-like structure while keratin hydrogel was degraded with many cracks and gaps after implantation for several weeks. We concluded from those results that keratin film was mostly biocompatible without provoking inflammation nor encapsulation, mechanically stronger than the keratin hydrogel, and was more resistant to degradation than the keratin hydrogel.
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40
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Williams R, Lace R, Kennedy S, Doherty K, Levis H. Biomaterials for Regenerative Medicine Approaches for the Anterior Segment of the Eye. Adv Healthc Mater 2018; 7:e1701328. [PMID: 29388397 DOI: 10.1002/adhm.201701328] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/22/2017] [Indexed: 12/13/2022]
Abstract
The role of biomaterials in tissue engineering and regenerative medicine strategies to treat vision loss associated with damage to tissues in the anterior segment of the eye has been studied for several years. This has mostly involved replacement and support for the cornea and conjunctiva. These are complex tissues with specific functional requirements for different parts of the tissue. Amniotic membrane (AM) is used in clinical practice to transplant autologous or allogenic cells to the corneal surface. Fibrin gels have also progressed to clinical use under specific conditions. Alternatives to AM such as collagen gels, other natural materials, for example keratin and silks, and synthetic polymers have received considerable attention in laboratory and animal studies. This experience is building a body of evidence to demonstrate the potential of tissue engineering and regenerative medicine in corneal and conjunctival reconstruction and can also lead to other applications in the anterior segment of the eye, for example, the trabecular meshwork. There is a real clinical need for new procedures to overcome vision loss but there are also opportunities for developments in ocular applications to lead to biomaterials innovations for use in other clinical areas.
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Affiliation(s)
- Rachel Williams
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Rebecca Lace
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Stephnie Kennedy
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Kyle Doherty
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Hannah Levis
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
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41
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Kiani MT, Higgins CA, Almquist BD. The Hair Follicle: An Underutilized Source of Cells and Materials for Regenerative Medicine. ACS Biomater Sci Eng 2018; 4:1193-1207. [PMID: 29682604 PMCID: PMC5905671 DOI: 10.1021/acsbiomaterials.7b00072] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The hair follicle is one of only two structures within the adult body that selectively degenerates and regenerates, making it an intriguing organ to study and use for regenerative medicine. Hair follicles have been shown to influence wound healing, angiogenesis, neurogenesis, and harbor distinct populations of stem cells; this has led to cells from the follicle being used in clinical trials for tendinosis and chronic ulcers. In addition, keratin produced by the follicle in the form of a hair fiber provides an abundant source of biomaterials for regenerative medicine. In this review, we provide an overview of the structure of a hair follicle, explain the role of the follicle in regulating the microenvironment of skin and the impact on wound healing, explore individual cell types of interest for regenerative medicine, and cover several applications of keratin-based biomaterials.
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Affiliation(s)
- Mehrdad T Kiani
- Department of Bioengineering, Royal School of Mines, Imperial College London, London SW7 2AZ UK
- Department of Materials Science, 496 Lomita Mall, Stanford University, Stanford CA 94305 USA
| | - Claire A Higgins
- Department of Bioengineering, Royal School of Mines, Imperial College London, London SW7 2AZ UK
| | - Benjamin D Almquist
- Department of Bioengineering, Royal School of Mines, Imperial College London, London SW7 2AZ UK
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42
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Shavandi A, Silva TH, Bekhit AA, Bekhit AEDA. Keratin: dissolution, extraction and biomedical application. Biomater Sci 2018; 5:1699-1735. [PMID: 28686242 DOI: 10.1039/c7bm00411g] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Keratinous materials such as wool, feathers and hooves are tough unique biological co-products that usually have high sulfur and protein contents. A high cystine content (7-13%) differentiates keratins from other structural proteins, such as collagen and elastin. Dissolution and extraction of keratin is a difficult process compared to other natural polymers, such as chitosan, starch, collagen, and a large-scale use of keratin depends on employing a relatively fast, cost-effective and time efficient extraction method. Keratin has some inherent ability to facilitate cell adhesion, proliferation, and regeneration of the tissue, therefore keratin biomaterials can provide a biocompatible matrix for regrowth and regeneration of the defective tissue. Additionally, due to its amino acid constituents, keratin can be tailored and finely tuned to meet the exact requirement of degradation, drug release or incorporation of different hydrophobic or hydrophilic tails. This review discusses the various methods available for the dissolution and extraction of keratin with emphasis on their advantages and limitations. The impacts of various methods and chemicals used on the structure and the properties of keratin are discussed with the aim of highlighting options available toward commercial keratin production. This review also reports the properties of various keratin-based biomaterials and critically examines how these materials are influenced by the keratin extraction procedure, discussing the features that make them effective as biomedical applications, as well as some of the mechanisms of action and physiological roles of keratin. Particular attention is given to the practical application of keratin biomaterials, namely addressing the advantages and limitations on the use of keratin films, 3D composite scaffolds and keratin hydrogels for tissue engineering, wound healing, hemostatic and controlled drug release.
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Affiliation(s)
- Amin Shavandi
- Center for Materials Science and Technology, University of Otago, Dunedin, New Zealand.
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43
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Witt J, Mertsch S, Borrelli M, Dietrich J, Geerling G, Schrader S, Spaniol K. Decellularised conjunctiva for ocular surface reconstruction. Acta Biomater 2018; 67:259-269. [PMID: 29225150 DOI: 10.1016/j.actbio.2017.11.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 11/21/2017] [Accepted: 11/30/2017] [Indexed: 12/23/2022]
Abstract
Conjunctival reconstruction is an integral component of ocular surface restoration. Decellularised tissues are frequently used clinically for tissue engineering. This study identifies porcine decellularised conjunctiva (PDC) and human decellularised conjunctiva (HDC) as promising substitutes for conjunctival reconstruction. PDC and HDC were nearly DNA-free, structurally intact and showed no cytotoxic effects in vitro, which was confirmed by DNA quantification, histology, transmission electron microscopy, collagen quantification and cytotoxicity assay. Comparing the biomechanical properties to amniotic membrane (AM), the most frequently applied matrix for ocular surface reconstruction today, the decellularised conjunctiva was more extensible and elastic but exhibited less tensile strength. The in vivo application in a rabbit model proofed significantly enhanced transplant stability and less suture losses comparing PDC and HDC to AM while none of the matrices induced considerable inflammation. Ten days after implantation, all PDC, 4 of 6 HDC but none of the AM transplants were completely integrated into the recipient conjunctiva with a partially multi-layered epithelium. Altogether, decellularised conjunctivas of porcine and human origin were superior to AM for conjunctival reconstruction after xenogeneic application in vivo. STATEMENT OF SIGNIFICANCE Conjunctival integrity is essential for a healthy ocular surface and clear vision. Its reconstruction is required in case of immunological diseases, after trauma, chemical or thermal burns or surgery involving the conjunctiva. Due to limitations of currently used substitute tissues such as amniotic membrane, there is a need for the development of new matrices for conjunctival reconstruction. Decellularised tissues are frequently applied clinically for tissue engineering. The present study identifies porcine and human decellularised conjunctiva as biocompatible and well tolerated scaffolds with superior integration into the recipient conjunctiva compared to amniotic membrane. Decellularised conjunctiva depicts a promising substitute for conjunctival reconstruction in ophthalmology.
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Affiliation(s)
- Joana Witt
- Department of Ophthalmology, University Hospital Duesseldorf, Heinrich-Heine-University, Germany
| | - Sonja Mertsch
- Department of Ophthalmology, University Hospital Duesseldorf, Heinrich-Heine-University, Germany
| | - Maria Borrelli
- Department of Ophthalmology, University Hospital Duesseldorf, Heinrich-Heine-University, Germany
| | - Jana Dietrich
- Department of Ophthalmology, University Hospital Duesseldorf, Heinrich-Heine-University, Germany
| | - Gerd Geerling
- Department of Ophthalmology, University Hospital Duesseldorf, Heinrich-Heine-University, Germany
| | - Stefan Schrader
- Department of Ophthalmology, University Hospital Duesseldorf, Heinrich-Heine-University, Germany
| | - Kristina Spaniol
- Department of Ophthalmology, University Hospital Duesseldorf, Heinrich-Heine-University, Germany.
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44
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Yue K, Liu Y, Byambaa B, Singh V, Liu W, Li X, Sun Y, Zhang YS, Tamayol A, Zhang P, Ng KW, Annabi N, Khademhosseini A. Visible light crosslinkable human hair keratin hydrogels. Bioeng Transl Med 2018; 3:37-48. [PMID: 29376132 PMCID: PMC5773942 DOI: 10.1002/btm2.10077] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/14/2017] [Accepted: 08/15/2017] [Indexed: 12/22/2022] Open
Abstract
Keratins extracted from human hair have emerged as a promising biomaterial for various biomedical applications, partly due to their wide availability, low cost, minimal immune response, and the potential to engineer autologous tissue constructs. However, the fabrication of keratin-based scaffolds typically relies on limited crosslinking mechanisms, such as via physical interactions or disulfide bond formation, which are time-consuming and result in relatively poor mechanical strength and stability. Here, we report the preparation of photocrosslinkable keratin-polyethylene glycol (PEG) hydrogels via the thiol-norbornene "click" reaction, which can be formed within one minute upon irradiation of visible light. The resulting keratin-PEG hydrogels showed highly tunable mechanical properties of up to 45 kPa in compressive modulus, and long-term stability in buffer solutions and cell culture media. These keratin-based hydrogels were tested as cell culture substrates in both two-dimensional surface seeding and three-dimensional cell encapsulation, demonstrating excellent cytocompatibility to support the attachment, spreading, and proliferation of fibroblast cells. Moreover, the photocrosslinking mechanism makes keratin-based hydrogel suitable for various microfabrication techniques, such as micropatterning and wet spinning, to fabricate cell-laden tissue constructs with different architectures. We believe that the unique features of this photocrosslinkable human hair keratin hydrogel promise new opportunities for their future biomedical applications.
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Affiliation(s)
- Kan Yue
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
| | - Yanhui Liu
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- College of Textiles, Donghua UniversityShanghai 201620China
| | - Batzaya Byambaa
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
| | - Vaishali Singh
- School of Materials Science and EngineeringNanyang Technological University, N4.1, 50 Nanyang AvenueSingapore 639798Singapore
| | - Wanjun Liu
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- College of Textiles, Donghua UniversityShanghai 201620China
| | - Xiuyu Li
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Research Center for Analysis and MeasurementHebei Normal UniversityShijiazhuang 050024HebeiChina
| | - Yunxia Sun
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Dept. of Chemistry and Key Laboratory of Biomedical Polymers, Ministry of EducationWuhan UniversityWuhan 430072China
| | - Yu Shrike Zhang
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMA 02115
| | - Ali Tamayol
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMA 02115
| | - Peihua Zhang
- College of Textiles, Donghua UniversityShanghai 201620China
| | - Kee Woei Ng
- School of Materials Science and EngineeringNanyang Technological University, N4.1, 50 Nanyang AvenueSingapore 639798Singapore
| | - Nasim Annabi
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMA 02115
- Dept. of Chemical EngineeringNortheastern UniversityBostonMA 02115
| | - Ali Khademhosseini
- Div. of Engineering in Medicine, Dept. of Medicine, Biomaterials Innovation Research CenterBrigham and Women's Hospital, Harvard Medical SchoolCambridgeMA 02139
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of TechnologyCambridgeMA 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMA 02115
- Dept. of Bioindustrial TechnologiesCollege of Animal Bioscience and Technology, Konkuk University, Hwayang‐dongGwangjin‐guSeoul 143‐701Republic of Korea
- Nanotechnology CenterKing Abdulaziz UniversityJeddah 21569Saudi Arabia
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45
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Shirzadeh E, Heidari Keshel S, Ezzatizadeh V, Jabbehdari S, Baradaran-Rafii A. Unrestricted somatic stem cells, as a novel feeder layer: Ex vivo culture of human limbal stem cells. J Cell Biochem 2017; 119:2666-2678. [PMID: 29087592 DOI: 10.1002/jcb.26434] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 10/18/2017] [Indexed: 12/15/2022]
Abstract
Ex vivo culture of limbal stem cells (LSCs) is a current promising approach for reconstruction of the ocular surface. In this context, 3T3 feeder layer cells (mouse embryo fibroblast) are generally utilized to maintain and expand LSCs. The aim of this study is to develop a novel culture method (animal-derived products free) to expand LSCs, using umbilical cord derived human unrestricted somatic stem cells (hUSSCs) instead of 3T3 cell with an emphasis on maintaining of the Stemness in LSCs. Using flow-cytometer, isolated hUSSCs were characterized for CD105, CD90, CD166, CD34, CD45, CD31 cell surface markers and their differentiation capability into adipogenic as well as osteogenic lineages were evaluated. In addition to colony-forming efficiency (CFE), epithelial lineage differentiation and karyotyping, LSC properties were evaluated for ABCG2, ΔNP63-α, CK19, CK3, and CK12 mRNA and protein expressions using quantitative RT-PCR (qRT-PCR) and immunocytochemistry, when these cells were co-cultured with hUSSCs (in comparison with 3T3 feeder layer). LSCs, co-cultured with hUSSCs, showed normal karyotype (46, XX), while they could efficiently form colony (86 ± 3) and display up-regulation of the genes associated with stemness and down-regulation of corneal epithelial differentiation genes. Consistent with 3T3 feeder cells, hUSSCs with spindle-shaped morphology and quick splitting up properties had ability to preserve the stem like-cell phenotype of LSCs. These findings were confirmed by qRT-PCR and flow-cytometer. Findings of present study suggest hUSSCs as a promising alternative method for 3T3 feeder layer cells, to preserve growth and stemness of LSCs ex vivo culture.
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Affiliation(s)
- Ebrahim Shirzadeh
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of medical sciences, Tehran, Iran.,Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Saeed Heidari Keshel
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Ezzatizadeh
- Department of Stem Cell and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Medical Genetics Department, Royesh Medical Laboratory Centre, Tehran, Iran
| | - Sayena Jabbehdari
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of medical sciences, Tehran, Iran
| | - Alireza Baradaran-Rafii
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of medical sciences, Tehran, Iran
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46
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Wang J, Hao S, Luo T, Zhou T, Yang X, Wang B. Keratose/poly (vinyl alcohol) blended nanofibers: Fabrication and biocompatibility assessment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 72:212-219. [DOI: 10.1016/j.msec.2016.11.071] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 11/02/2016] [Accepted: 11/21/2016] [Indexed: 12/26/2022]
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47
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Lin YH, Huang KW, Chen SY, Cheng NC, Yu J. Keratin/chitosan UV-crosslinked composites promote the osteogenic differentiation of human adipose derived stem cells. J Mater Chem B 2017; 5:4614-4622. [DOI: 10.1039/c7tb00188f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A photocrosslinkable natural polymer, keratin/chitosan composite, promotes the aggregation and osteogenic differentiation of human adipose derived stem cells.
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Affiliation(s)
- Yung-Hao Lin
- Department of Chemical Engineering
- College of Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Kai-Wen Huang
- Department of Chemical Engineering
- College of Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Shao-Yung Chen
- Department of Chemical Engineering
- College of Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Nai-Chen Cheng
- Department of Surgery
- National Taiwan University Hospital and College of Medicine
- National Taiwan University
- Taipei 100
- Taiwan
| | - Jiashing Yu
- Department of Chemical Engineering
- College of Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
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48
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Boddupalli A, Zhu L, Bratlie KM. Methods for Implant Acceptance and Wound Healing: Material Selection and Implant Location Modulate Macrophage and Fibroblast Phenotypes. Adv Healthc Mater 2016; 5:2575-2594. [PMID: 27593734 DOI: 10.1002/adhm.201600532] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/17/2016] [Indexed: 12/12/2022]
Abstract
This review focuses on materials and methods used to induce phenotypic changes in macrophages and fibroblasts. Herein, we give a brief overview on how changes in macrophages and fibroblasts phenotypes are critical biomarkers for identification of implant acceptance, wound healing effectiveness, and are also essential for evaluating the regenerative capabilities of some hybrid strategies that involve the combination of natural and synthetic materials. The different types of cells present during the host response have been extensively studied for evaluating the reaction to different materials and there are varied material approaches towards fabrication of biocompatible substrates. We discuss how natural and synthetic materials have been used to engineer desirable outcomes in lung, heart, liver, skin, and musculoskeletal implants, and how certain properties such as rigidity, surface shape, and porosity play key roles in the progression of the host response. Several fabrication strategies are discussed to control the phenotype of infiltrating macrophages and fibroblasts: decellularization of scaffolds, surface coatings, implant shape, and pore size apart from biochemical signaling pathways that can inhibit or accelerate unfavorable host responses. It is essential to factor all the different design principles and material fabrication criteria for evaluating the choice of implant materials or regenerative therapeutic strategies.
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Affiliation(s)
- Anuraag Boddupalli
- Department of Chemical & Biological Engineering; Iowa State University; 2114 Sweeney Hall Ames IA 50011 USA
| | - Lida Zhu
- Department of Chemical & Biological Engineering; Iowa State University; 2114 Sweeney Hall Ames IA 50011 USA
| | - Kaitlin M. Bratlie
- Department of Chemical & Biological Engineering; Iowa State University; 2114 Sweeney Hall Ames IA 50011 USA
- Department of Materials Science & Engineering; Iowa State University; 2220 Hoover Hall Ames IA 50011 USA
- Division of Materials Science & Engineering; Ames National Laboratory; 126 Metals Development Ames IA 50011 USA
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49
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Li Y, Wang Y, Ye J, Yuan J, Xiao Y. Fabrication of poly(ε-caprolactone)/keratin nanofibrous mats as a potential scaffold for vascular tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:177-183. [PMID: 27524010 DOI: 10.1016/j.msec.2016.05.117] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 05/10/2016] [Accepted: 05/27/2016] [Indexed: 12/27/2022]
Abstract
The natural abundance of cell adhesion sequences, RGD (Arg-Gly-Asp) and LDV (Leu-Asp-Val) in the keratins make them suitable as biomaterials for tissue engineering applications. Herein, keratins were coelectrospun with poly(ε-caprolactone)(PCL) at the ratio of 9/1, 8/2, and 7/3 to afford nanofibrous mats. The resulting mats were surface-characterized by ATR-FTIR, SEM, WCA, and XPS. Cell attachment data showed that NIH 3T3 cells adhered more to the PCL/keratin nanofibrous mats than the pristine PCL mats. The MTT assay revealed that the PCL/keratin mats had improved cell viability. The blood clotting time test (APTT, PT, and TT) indicated the PCL/keratin mats exerted good blood compatibility. These mats would be a good candidate as a scaffold for vascular tissue engineering.
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Affiliation(s)
- Yanmei Li
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yanfang Wang
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jingjie Ye
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jiang Yuan
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Yinghong Xiao
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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50
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Chao W, Belmonte C, Benitez del Castillo JM, Bron AJ, Dua HS, Nichols KK, Novack GD, Schrader S, Willcox MD, Wolffsohn JS, Sullivan DA. Report of the Inaugural Meeting of the TFOS i2 = initiating innovation Series: Targeting the Unmet Need for Dry Eye Treatment. Ocul Surf 2016; 14:264-316. [DOI: 10.1016/j.jtos.2015.11.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 11/09/2015] [Accepted: 11/11/2015] [Indexed: 01/09/2023]
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