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Mei F, Guo Y, Wang Y, Zhou Y, Heng BC, Xie M, Huang X, Zhang S, Ding S, Liu F, Deng X, Chen L, Yang C. Matrix stiffness regulates macrophage polarisation via the Piezo1-YAP signalling axis. Cell Prolif 2024; 57:e13640. [PMID: 38556840 PMCID: PMC11294424 DOI: 10.1111/cpr.13640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/29/2024] [Accepted: 03/18/2024] [Indexed: 04/02/2024] Open
Abstract
Macrophages play a pivotal role in the immunological cascade activated in response to biomedical implants, which predetermine acceptance or rejection of implants by the host via pro- and anti-inflammatory polarisation states. The role of chemical signals in macrophage polarisation is well-established, but how physical cues regulate macrophage function that may play a fundamental role in implant-bone interface, remains poorly understood. Here we find that bone marrow-derived macrophages (BMDM) cultured on polyacrylamide gels of varying stiffness exhibit different polarisation states. BMDM are 'primed' to a pro-inflammatory M1 phenotype on stiff substrates, while to an anti-inflammatory M2 phenotype on soft and medium stiffness substrates. It is further observed that matrix stiffening increases Piezo1 expression, as well as leads to subsequent activation of the mechanotransduction signalling effector YAP, thus favouring M1 polarisation whilst suppressing M2 polarisation. Moreover, upon treatment with YAP inhibitor, we successfully induce macrophage re-polarisation to the M2 state within the implant site microenvironment, which in turn promotes implant osseointegration. Collectively, our present study thus characterises the critical role of the Piezo1-YAP signalling axis in macrophage mechanosensing and stiffness-mediated macrophage polarisation and provides cues for the design of immuno-modulatory biomaterials that can regulate the macrophage phenotype.
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Affiliation(s)
- Feng Mei
- Department of Stomatology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- School of Stomatology, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhanChina
| | - Yaru Guo
- Department of Geriatric DentistryPeking University School and Hospital of StomatologyBeijingChina
| | - Yu Wang
- Department of OrthodonticsPeking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital StomatologyBeijingChina
| | - Yingying Zhou
- NMPA Key Laboratory for Dental Materials, Department of Dental Materials & Dental Medical Devices Testing CenterPeking University School and Hospital of StomatologyBeijingChina
| | - Boon Chin Heng
- Central LaboratoryPeking University School and Hospital of StomatologyBeijingChina
| | - Mengru Xie
- Department of Stomatology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- School of Stomatology, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhanChina
| | - Xiaofei Huang
- Department of Stomatology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- School of Stomatology, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhanChina
| | - Shihan Zhang
- Department of Geriatric DentistryPeking University School and Hospital of StomatologyBeijingChina
| | - Shuai Ding
- Department of OrthodonticsPeking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital StomatologyBeijingChina
| | - Fangyong Liu
- NMPA Key Laboratory for Dental Materials, Department of Dental Materials & Dental Medical Devices Testing CenterPeking University School and Hospital of StomatologyBeijingChina
| | - Xuliang Deng
- Department of Geriatric DentistryPeking University School and Hospital of StomatologyBeijingChina
- NMPA Key Laboratory for Dental Materials, Department of Dental Materials & Dental Medical Devices Testing CenterPeking University School and Hospital of StomatologyBeijingChina
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- School of Stomatology, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhanChina
| | - Cheng Yang
- Department of Stomatology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- School of Stomatology, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhanChina
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Abstract
Despite rigorous investigations, the hydrogels currently available to replace damaged tissues, such as the cornea, cannot fulfill mechanical and structural requirements and, more importantly, cannot be sutured into host tissues due to the lack of hierarchical structures to dissipate exerted stress. In this report, solution electrospinning of polycaprolactone (PCL), protein-based hydrogel perfusion, and layer-by-layer stacking are used to generate a hydrogel-microfiber composite with varying PCL fiber diameters and hydrogel concentrations. Integrating PCL microfibers into the hydrogel synergistically improves the mechanical properties and suturability of the construct up to 10-fold and 50-fold, respectively, compared to the hydrogel and microfiber scaffolds alone, approaching those of the corneal tissue. Human corneal cells cultured on composites are viable and can spread, proliferate, and retain phenotypic characteristics. Moreover, corneal stromal cells migrate into the scaffold, degrade it, and regenerate the extracellular matrix. The current hydrogel reinforcing system paves the way for producing suturable and, therefore, transplantable tissue constructs with desired mechanical properties.
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Affiliation(s)
- Sina Sharifi
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, Massachusetts02114, United States
| | - Hannah Sharifi
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, Massachusetts02114, United States
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Huang S, Fu Y, Mo A. Electrophoretic-deposited MXene titanium coatings in regulating bacteria and cell response for peri-implantitis. Front Chem 2022; 10:991481. [PMID: 36247682 PMCID: PMC9558740 DOI: 10.3389/fchem.2022.991481] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Two-dimensional(2D)MXenes have continued to receive increasing interest from researchers due to their graphene-like properties, in addition to their versatile properties for applications in electronic devices, power generation, sensors, drug delivery, and biomedicine. However, their construction and biological properties as titanium coatings to prevent peri-implantitis are still unclear. Materials and methods: In this work, few-layer Ti3C2Tx MXene coatings with different thicknesses at varied depositing voltages (30, 40, and 50 V) were constructed by anodic electrophoretic deposition without adding any electrolytic ions. In vitro cytocompatibility assay was performed on preosteoblasts (MC3T3-E1) cell lines after the characterization of the coating. Meanwhile, the antibacterial activity against bacteria which are closely related to peri-implantitis including Staphylococcus aureus (S. aureus) and its drug-resistant strain MRSA was further investigated. Results: MXene-coated titanium models with different thicknesses were successfully assembled by analyzing the results of characterization. The compounding of Ti3C2Tx could significantly improve the initial adhesion and proliferation of MC3T3-E1 cells. Moreover, the coating can effectively inhibit the adhesion and cell activity of S. aureus and MRSA, and MRSA expressed greater restricting behavior than S. aureus. The ability to promote antibacterial activity is proportional to the content of Ti3C2Tx. Its antioxidant capacity to reduce ROS in the culture environment and bacterial cells was first revealed. Conclusion: In summary, this work shows a new avenue for MXene-based nano-biomaterials under the clinical problem of multiple antibiotic resistance.
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Affiliation(s)
- Si Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
- Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Fu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
- Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Anchun Mo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
- Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Anchun Mo,
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Surgical planning and finite element analysis for the neurocraneal protection in cranioplasty with PMMA: A case study. Heliyon 2022; 8:e10706. [PMID: 36185133 PMCID: PMC9519503 DOI: 10.1016/j.heliyon.2022.e10706] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/03/2022] [Accepted: 09/15/2022] [Indexed: 11/21/2022] Open
Abstract
New developments in terms of additive manufacturing, computational tools and mathematical simulation techniques have favored the development of successful methodologies for the restoration or restitution of bone structures in the human body. Likewise, achievements in Materials Science have allowed the development of biocompatible composites capable of achieving mechanical characteristics and biological similarities comparable to those of natural bone. Without considering the advantages and disadvantages of some biomaterials with respect to others, this research aims to evaluate the surgical planning, the design process, the impact resistance and the critical deflection of a customized cranial implant manufactured from polymethylmethacrylate (PMMA). With the support of finite element methods (FEM), the level of neurocranial protection offered by the implant is assessed.
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Sharifi S, Sharifi H, Akbari A, Lei F, Dohlman CH, Gonzalez-Andrades M, Guild C, Paschalis EI, Chodosh J. Critical media attributes in E-beam sterilization of corneal tissue. Acta Biomater 2022; 138:218-227. [PMID: 34755604 PMCID: PMC8738149 DOI: 10.1016/j.actbio.2021.10.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 01/17/2023]
Abstract
When ionizing irradiation interacts with a media, it can form reactive species that can react with the constituents of the system, leading to eradication of bioburden and sterilization of the tissue. Understanding the media's properties such as polarity is important to control and direct those reactive species to perform desired reactions. Using ethanol as a polarity modifier of water, we herein generated a series of media with varying relative polarities for electron beam (E-beam) irradiation of cornea at 25 kGy and studied how the irradiation media's polarity impacts properties of the cornea. After irradiation of corneal tissues, mechanical (tensile strength and modulus, elongation at break, and compression modulus), chemical, optical, structural, degradation, and biological properties of the corneal tissues were evaluated. Our study showed that irradiation in lower relative polarity media improved structural properties of the tissues yet reduced optical transmission; higher relative polarity reduced structural and optical properties of the cornea; and intermediate relative polarity (ethanol concentrations = 20-30% (v/v)) improved the structural properties, without compromising optical characteristics. Regardless of media polarity, irradiation did not negatively impact the biocompatibility of the corneal tissue. Our data shows that the absorbed ethanol can be flushed from the irradiated cornea to levels that are nontoxic to corneal and retinal cells. These findings suggest that the relative polarity of the irradiation media can be tuned to generate sterilized tissues, including corneal grafts, with engineered properties that are required for specific biomedical applications. STATEMENT OF SIGNIFICANCE: Extending the shelf-life of corneal tissue can improve general accessibility of cornea grafts for transplantation. Irradiation of donor corneas with E-beam is an emerging technology to sterilize the corneal tissues and enable their long-term storage at room temperature. Despite recent applications in clinical medicine, little is known about the effect of irradiation and preservation media's characteristics, such as polarity on the properties of irradiated corneas. Here, we have showed that the polarity of the media can be a valuable tool to change and control the properties of the irradiated tissue for transplantation.
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Affiliation(s)
- Sina Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA,Corresponding authors: James Chodosh, MD MPH, Massachusetts Eye and Ear, Boston, MA, 02114, USA. , Sina Sharifi, PhD, Massachusetts Eye and Ear, Boston, MA, 02114, USA.
| | - Hannah Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Ali Akbari
- Solid Tumor Research Center, Research Institute for Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Fengyang Lei
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Claes H. Dohlman
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Miguel Gonzalez-Andrades
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA,Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Department of Ophthalmology, Reina Sofia University Hospital and University of Cordoba, Cordoba, Spain
| | | | - Eleftherios I. Paschalis
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - James Chodosh
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA,Corresponding authors: James Chodosh, MD MPH, Massachusetts Eye and Ear, Boston, MA, 02114, USA. , Sina Sharifi, PhD, Massachusetts Eye and Ear, Boston, MA, 02114, USA.
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6
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Sharifi S, Sharifi H, Akbari A, Chodosh J. Systematic optimization of visible light-induced crosslinking conditions of gelatin methacryloyl (GelMA). Sci Rep 2021; 11:23276. [PMID: 34857867 PMCID: PMC8640009 DOI: 10.1038/s41598-021-02830-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 11/18/2021] [Indexed: 11/09/2022] Open
Abstract
Gelatin methacryloyl (GelMA) is one of the most widely used photo-crosslinkable biopolymers in tissue engineering. In in presence of an appropriate photoinitiator, the light activation triggers the crosslinking process, which provides shape fidelity and stability at physiological temperature. Although ultraviolet (UV) has been extensively explored for photo-crosslinking, its application has been linked to numerous biosafety concerns, originated from UV phototoxicity. Eosin Y, in combination with TEOA and VC, is a biosafe photoinitiation system that can be activated via visible light instead of UV and bypasses those biosafety concerns; however, the crosslinking system needs fine-tuning and optimization. In order to systematically optimize the crosslinking conditions, we herein independently varied the concentrations of Eosin Y [(EY)], triethanolamine (TEOA), vinyl caprolactam (VC), GelMA precursor, and crosslinking times and assessed the effect of those parameters on the properties the hydrogel. Our data showed that except EY, which exhibited an optimal concentration (~ 0.05 mM), increasing [TEOA], [VA], [GelMA], or crosslinking time improved mechanical (tensile strength/modulus and compressive modulus), adhesion (lap shear strength), swelling, biodegradation properties of the hydrogel. However, increasing the concentrations of crosslinking reagents ([TEOA], [VA], [GelMA]) reduced cell viability in 3-dimensional (3D) cell culture. This study enabled us to optimize the crosslinking conditions to improve the properties of the GelMA hydrogel and to generate a library of hydrogels with defined properties essential for different biomedical applications.
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Affiliation(s)
- Sina Sharifi
- Disruptive Technology Laboratory, Department of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear and Schepens Eye Research Institute, Boston, MA, USA.
| | - Hannah Sharifi
- Disruptive Technology Laboratory, Department of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear and Schepens Eye Research Institute, Boston, MA, USA
| | - Ali Akbari
- Solid Tumor Research Center, Research Institute for Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - James Chodosh
- Disruptive Technology Laboratory, Department of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear and Schepens Eye Research Institute, Boston, MA, USA
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7
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Sharifi S, Sharifi H, Akbari A, Dohlman CH, Paschalis EI, Gonzalez-Andrades M, Kong J, Chodosh J. Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering. ACS APPLIED NANO MATERIALS 2021; 4:12650-12662. [PMID: 35252778 PMCID: PMC8897984 DOI: 10.1021/acsanm.1c03201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite rigorous research, inferior mechanical properties and structural homogeneity are the main challenges constraining hydrogel's suturability to host tissue and limiting its clinical applications. To tackle those, we developed a reverse solvent interface trapping method, in which organized, graphene-coated microspherical cavities were introduced into a hydrogel to create heterogeneity and make it suturable. To generate those cavities, (i) graphite exfoliates to graphene sheets, which spread at the water/ heptane interfaces of the microemulsion, (ii) heptane fills the microspheres coated by graphene, and (iii) a cross-linkable hydrogel dissolved in water fills the voids. Cross-linking solidifies such microemulsion to a strong, suturable, permanent hybrid architecture, which has better mechanical properties, yet it is biocompatible and supports cell adhesion and proliferation. These properties along with the ease and biosafety of fabrication suggest the potential of this strategy to enhance tissue engineering outcomes by generating various suturable scaffolds for biomedical applications, such as donor cornea carriers for Boston keratoprosthesis (BK).
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Affiliation(s)
- Sina Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Hannah Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Ali Akbari
- Solid Tumor Research Center, Research Institute for Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia 57147, Iran
| | - Claes H Dohlman
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Eleftherios I Paschalis
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Miguel Gonzalez-Andrades
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States; Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Department of Ophthalmology, Reina Sofia University Hospital and University of Cordoba, Cordoba 14004, Spain
| | - Jing Kong
- Department of Electrical Engineering andComputer Science, Massachusetts Institute of Technology,Cambridge, Massachusetts 02139, United States
| | - James Chodosh
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
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8
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Holland G, Pandit A, Sánchez-Abella L, Haiek A, Loinaz I, Dupin D, Gonzalez M, Larra E, Bidaguren A, Lagali N, Moloney EB, Ritter T. Artificial Cornea: Past, Current, and Future Directions. Front Med (Lausanne) 2021; 8:770780. [PMID: 34869489 PMCID: PMC8632951 DOI: 10.3389/fmed.2021.770780] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 10/15/2021] [Indexed: 12/13/2022] Open
Abstract
Corneal diseases are a leading cause of blindness with an estimated 10 million patients diagnosed with bilateral corneal blindness worldwide. Corneal transplantation is highly successful in low-risk patients with corneal blindness but often fails those with high-risk indications such as recurrent or chronic inflammatory disorders, history of glaucoma and herpetic infections, and those with neovascularisation of the host bed. Moreover, the need for donor corneas greatly exceeds the supply, especially in disadvantaged countries. Therefore, artificial and bio-mimetic corneas have been investigated for patients with indications that result in keratoplasty failure. Two long-lasting keratoprostheses with different indications, the Boston type-1 keratoprostheses and osteo-odonto-keratoprostheses have been adapted to minimise complications that have arisen over time. However, both utilise either autologous tissue or an allograft cornea to increase biointegration. To step away from the need for donor material, synthetic keratoprostheses with soft skirts have been introduced to increase biointegration between the device and native tissue. The AlphaCor™, a synthetic polymer (PHEMA) hydrogel, addressed certain complications of the previous versions of keratoprostheses but resulted in stromal melting and optic deposition. Efforts are being made towards creating synthetic keratoprostheses that emulate native corneas by the inclusion of biomolecules that support enhanced biointegration of the implant while reducing stromal melting and optic deposition. The field continues to shift towards more advanced bioengineering approaches to form replacement corneas. Certain biomolecules such as collagen are being investigated to create corneal substitutes, which can be used as the basis for bio-inks in 3D corneal bioprinting. Alternatively, decellularised corneas from mammalian sources have shown potential in replicating both the corneal composition and fibril architecture. This review will discuss the limitations of keratoplasty, milestones in the history of artificial corneal development, advancements in current artificial corneas, and future possibilities in this field.
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Affiliation(s)
- Gráinne Holland
- School of Medicine, College of Medicine, Nursing and Health Sciences, Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
| | - Abhay Pandit
- CÚRAM Science Foundation Ireland Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
| | - Laura Sánchez-Abella
- CIDETEC, Basque Research and Technology Alliance, Parque Científico y Tecnológico de Gipuzkoa, Donostia-San Sebastián, Spain
| | - Andrea Haiek
- CIDETEC, Basque Research and Technology Alliance, Parque Científico y Tecnológico de Gipuzkoa, Donostia-San Sebastián, Spain
| | - Iraida Loinaz
- CIDETEC, Basque Research and Technology Alliance, Parque Científico y Tecnológico de Gipuzkoa, Donostia-San Sebastián, Spain
| | - Damien Dupin
- CIDETEC, Basque Research and Technology Alliance, Parque Científico y Tecnológico de Gipuzkoa, Donostia-San Sebastián, Spain
| | | | | | - Aritz Bidaguren
- Ophthalmology Department, Donostia University Hospital, San Sebastián, Spain
| | - Neil Lagali
- Department of Biomedical and Clinical Sciences, Faculty of Medicine, Linköping University, Linköping, Sweden
| | - Elizabeth B. Moloney
- School of Medicine, College of Medicine, Nursing and Health Sciences, Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
- CÚRAM Science Foundation Ireland Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
| | - Thomas Ritter
- School of Medicine, College of Medicine, Nursing and Health Sciences, Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
- CÚRAM Science Foundation Ireland Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
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9
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Sharifi S, Sharifi H, Akbari A, Koza D, Dohlman CH, Paschalis EI, Chodosh J. Photo-cross-linked Gelatin Glycidyl Methacrylate/N-Vinylpyrrolidone Copolymeric Hydrogel with Tunable Mechanical Properties for Ocular Tissue Engineering Applications. ACS APPLIED BIO MATERIALS 2021; 4:7682-7691. [PMID: 35006715 DOI: 10.1021/acsabm.1c00905] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Corneal transplantation is currently the primary treatment for corneal blindness. However, severe global scarcity of donor corneas is driving the scientific community to find novel solutions. One potential solution is to replace the damaged tissue with a biocompatible artificial cornea. Here, gelatin glycidyl methacrylate (GM) and N-vinylpyrrolidone (VP) were cocrosslinked to afford a hybrid bicomponent copolymeric hydrogel with excellent mechanical, structural, and biological properties. Our studies showed that the GM/VP ratio can be adjusted to generate a construct with high tensile modulus and strength of 1.6 and 1.0 MPa, respectively, compared to 14 and 7.5 MPa for human cornea. The construct can tolerate up to 22.4 kPa pressure before retention sutures can tear through it. Due to the presence of a synthetic component, it has a significantly higher stability against collagenase induced degradation, yet it is biocompatible and promotes cellular adhesion, proliferation, and migration under in vitro settings.
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Affiliation(s)
- Sina Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Hannah Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Ali Akbari
- Solid Tumor Research Center, Research Institute for Cellular and Molecular Medicine, Urmia University of Medical Sciences, 57147, Urmia, Iran
| | - Darrell Koza
- Department of Physical Sciences, Eastern Connecticut State University, Willimantic, Connecticut 06226, United States
| | - Claes H Dohlman
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Eleftherios I Paschalis
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - James Chodosh
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, United States
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10
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Sharifi S, Islam MM, Sharifi H, Islam R, Koza D, Reyes-Ortega F, Alba-Molina D, Nilsson PH, Dohlman CH, Mollnes TE, Chodosh J, Gonzalez-Andrades M. Tuning gelatin-based hydrogel towards bioadhesive ocular tissue engineering applications. Bioact Mater 2021; 6:3947-3961. [PMID: 33937594 PMCID: PMC8080056 DOI: 10.1016/j.bioactmat.2021.03.042] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/26/2021] [Accepted: 03/26/2021] [Indexed: 12/27/2022] Open
Abstract
Gelatin based adhesives have been used in the last decades in different biomedical applications due to the excellent biocompatibility, easy processability, transparency, non-toxicity, and reasonable mechanical properties to mimic the extracellular matrix (ECM). Gelatin adhesives can be easily tuned to gain different viscoelastic and mechanical properties that facilitate its ocular application. We herein grafted glycidyl methacrylate on the gelatin backbone with a simple chemical modification of the precursor, utilizing epoxide ring-opening reactions and visible light-crosslinking. This chemical modification allows the obtaining of an elastic protein-based hydrogel (GELGYM) with excellent biomimetic properties, approaching those of the native tissue. GELGYM can be modulated to be stretched up to 4 times its initial length and withstand high tensile stresses up to 1.95 MPa with compressive strains as high as 80% compared to Gelatin-methacryloyl (GeIMA), the most studied derivative of gelatin used as a bioadhesive. GELGYM is also highly biocompatible and supports cellular adhesion, proliferation, and migration in both 2 and 3-dimensional cell-cultures. These characteristics along with its super adhesion to biological tissues such as cornea, aorta, heart, muscle, kidney, liver, and spleen suggest widespread applications of this hydrogel in many biomedical areas such as transplantation, tissue adhesive, wound dressing, bioprinting, and drug and cell delivery.
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Affiliation(s)
- Sina Sharifi
- Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Mohammad Mirazul Islam
- Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Hannah Sharifi
- Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Rakibul Islam
- Department of Immunology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway
| | - Darrell Koza
- Department of Physical Sciences, Eastern Connecticut State University, Willimantic, CT, USA
| | - Felisa Reyes-Ortega
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Department of Ophthalmology, Reina Sofia University Hospital and University of Cordoba, Cordoba, Spain
| | - David Alba-Molina
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Department of Ophthalmology, Reina Sofia University Hospital and University of Cordoba, Cordoba, Spain
| | - Per H Nilsson
- Department of Immunology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway.,Linnaeus Center for Biomaterials Chemistry, Linnaeus University, Kalmar, Sweden
| | - Claes H Dohlman
- Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Tom Eirik Mollnes
- Department of Immunology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway.,Research Laboratory, Nordland Hospital, Bodø, Norway.,Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway.,Faculty of Health Sciences, K.G. Jebsen TREC, University of Tromsø, Norway
| | - James Chodosh
- Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Miguel Gonzalez-Andrades
- Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.,Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Department of Ophthalmology, Reina Sofia University Hospital and University of Cordoba, Cordoba, Spain
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11
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Sharifi S, Islam MM, Sharifi H, Islam R, Huq TN, Nilsson PH, Mollnes TE, Tran KD, Patzer C, Dohlman CH, Patra HK, Paschalis EI, Gonzalez-Andrades M, Chodosh J. Electron Beam Sterilization of Poly(Methyl Methacrylate)-Physicochemical and Biological Aspects. Macromol Biosci 2021; 21:e2000379. [PMID: 33624923 PMCID: PMC8147572 DOI: 10.1002/mabi.202000379] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/10/2021] [Indexed: 12/16/2022]
Abstract
Electron beam (E-beam) irradiation is an attractive and efficient method for sterilizing clinically implantable medical devices made of natural and/or synthetic materials such as poly(methyl methacrylate) (PMMA). As ionizing irradiation can affect the physicochemical properties of PMMA, understanding the consequences of E-beam sterilization on the intrinsic properties of PMMA is vital for clinical implementation. A detailed assessment of the chemical, optical, mechanical, morphological, and biological properties of medical-grade PMMA after E-beam sterilization at 25 and 50 kiloGray (kGy) is reported. Fourier transform infrared spectroscopy, thermogravimetric analysis, and differential scanning calorimetry studies indicate that E-beam irradiation has minimal effect on the chemical properties of the PMMA at these doses. While 25 kGy irradiation does not alter the mechanical and optical properties of the PMMA, 50 kGy reduces the flexural strength and transparency by 10% and 2%, respectively. Atomic force microscopy demonstrates that E-beam irradiation reduces the surface roughness of PMMA in a dose dependent manner. Live-Dead, AlamarBlue, immunocytochemistry, and complement activation studies show that E-beam irradiation up to 50 kGy has no adverse effect on the biocompatibility of the PMMA. These findings suggest that E-beam irradiation at 25 kGy may be a safe and efficient alternative for PMMA sterilization.
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Affiliation(s)
- Sina Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Mohammad Mirazul Islam
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Hannah Sharifi
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Rakibul Islam
- Department of Immunology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, 0424, Norway
| | - Tahmida N Huq
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK
| | - Per H Nilsson
- Department of Immunology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, 0424, Norway
- Linnaeus Center for Biomaterials Chemistry, Linnaeus University, Kalmar, 45027, Sweden
| | - Tom E Mollnes
- Department of Immunology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, 0424, Norway
- Research Laboratory, Nordland Hospital, Bodø, and Faculty of Health Sciences, K.G. Jebsen TREC, University of Tromsø, Tromsø, 9019, Norway
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | - Khoa D Tran
- Vision Research Laboratory, Lions VisionGift, Portland, OR, 97214, USA
| | - Corrina Patzer
- Vision Research Laboratory, Lions VisionGift, Portland, OR, 97214, USA
| | - Claes H Dohlman
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Hirak K Patra
- Department of Chemical Engineering and Biotechnology, Cambridge University, Cambridge, CB3 0AS, UK
| | - Eleftherios I Paschalis
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Miguel Gonzalez-Andrades
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Department of Ophthalmology, Reina Sofia University Hospital and University of Cordoba, Cordoba, 14004, Spain
| | - James Chodosh
- Disruptive Technology Laboratory, Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
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