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Patrawalla NY, Kajave NS, Albanna MZ, Kishore V. Collagen and Beyond: A Comprehensive Comparison of Human ECM Properties Derived from Various Tissue Sources for Regenerative Medicine Applications. J Funct Biomater 2023; 14:363. [PMID: 37504858 PMCID: PMC10381652 DOI: 10.3390/jfb14070363] [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: 05/27/2023] [Revised: 06/20/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023] Open
Abstract
Collagen, along with proteoglycans, glycosaminoglycans, glycoproteins, and various growth factors, forms the extracellular matrix (ECM) and contributes to the complexity and diversity of different tissues. Herein, we compared the physicochemical and biological properties of ECM hydrogels derived from four different human tissues: skin, bone, fat, and birth. Pure human collagen type I hydrogels were used as control. Physical characterization of ECM hydrogels and assessment of cell response of cord-tissue mesenchymal stem cells (CMSCs) were performed. Decellularization efficiency was found to be >90% for all ECM. Hydroxyproline quantification assay showed that collagen content in birth ECM was comparable to collagen control and significantly greater than other sources of ECM. Sodium dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) analysis showed the presence of γ, β, α1 and α2 collagen chains in all ECMs. Gelation kinetics of ECM hydrogels was significantly slower than collagen control. Compressive modulus of skin ECM was the highest and birth ECM was the lowest. Skin and birth ECM hydrogels were more stable than bone and fat ECM hydrogels. CMSCs encapsulated in birth ECM hydrogels exhibited the highest metabolic activity. Rheological characterization revealed that all ECM-derived inks exhibited shear thinning properties, and skin-derived ECM inks were most suitable for extrusion-based bioprinting for the concentration and printing conditions used in this study. Overall, results demonstrate that the physicochemical and biological properties of ECM hydrogels vary significantly depending on the tissue source. Therefore, careful selection of tissue source is important for development of ECM-based biomimetic tissue constructs for regenerative medicine applications.
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Affiliation(s)
- Nashaita Y Patrawalla
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL 32901, USA
| | | | - Mohammad Z Albanna
- Humabiologics® Inc., Phoenix, AZ 85034, USA
- Department of General Surgery, Atrium Health Wake Forest Baptist, Winston-Salem, NC 27101, USA
| | - Vipuil Kishore
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL 32901, USA
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2
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Volova LT, Kotelnikov GP, Shishkovsky I, Volov DB, Ossina N, Ryabov NA, Komyagin AV, Kim YH, Alekseev DG. 3D Bioprinting of Hyaline Articular Cartilage: Biopolymers, Hydrogels, and Bioinks. Polymers (Basel) 2023; 15:2695. [PMID: 37376340 DOI: 10.3390/polym15122695] [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: 04/06/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
The musculoskeletal system, consisting of bones and cartilage of various types, muscles, ligaments, and tendons, is the basis of the human body. However, many pathological conditions caused by aging, lifestyle, disease, or trauma can damage its elements and lead to severe disfunction and significant worsening in the quality of life. Due to its structure and function, articular (hyaline) cartilage is the most susceptible to damage. Articular cartilage is a non-vascular tissue with constrained self-regeneration capabilities. Additionally, treatment methods, which have proven efficacy in stopping its degradation and promoting regeneration, still do not exist. Conservative treatment and physical therapy only relieve the symptoms associated with cartilage destruction, and traditional surgical interventions to repair defects or endoprosthetics are not without serious drawbacks. Thus, articular cartilage damage remains an urgent and actual problem requiring the development of new treatment approaches. The emergence of biofabrication technologies, including three-dimensional (3D) bioprinting, at the end of the 20th century, allowed reconstructive interventions to get a second wind. Three-dimensional bioprinting creates volume constraints that mimic the structure and function of natural tissue due to the combinations of biomaterials, living cells, and signal molecules to create. In our case-hyaline cartilage. Several approaches to articular cartilage biofabrication have been developed to date, including the promising technology of 3D bioprinting. This review represents the main achievements of such research direction and describes the technological processes and the necessary biomaterials, cell cultures, and signal molecules. Special attention is given to the basic materials for 3D bioprinting-hydrogels and bioinks, as well as the biopolymers underlying the indicated products.
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Affiliation(s)
- Larisa T Volova
- Research and Development Institute of Biotechnologies, Samara State Medical University, Chapayevskaya St. 89, 443099 Samara, Russia
| | - Gennadiy P Kotelnikov
- Research and Development Institute of Biotechnologies, Samara State Medical University, Chapayevskaya St. 89, 443099 Samara, Russia
| | - Igor Shishkovsky
- Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - Dmitriy B Volov
- Research and Development Institute of Biotechnologies, Samara State Medical University, Chapayevskaya St. 89, 443099 Samara, Russia
| | - Natalya Ossina
- Research and Development Institute of Biotechnologies, Samara State Medical University, Chapayevskaya St. 89, 443099 Samara, Russia
| | - Nikolay A Ryabov
- Research and Development Institute of Biotechnologies, Samara State Medical University, Chapayevskaya St. 89, 443099 Samara, Russia
| | - Aleksey V Komyagin
- Research and Development Institute of Biotechnologies, Samara State Medical University, Chapayevskaya St. 89, 443099 Samara, Russia
| | - Yeon Ho Kim
- RokitHealth Care Ltd., 9, Digital-ro 10-gil, Geumcheon-gu, Seoul 08514, Republic of Korea
| | - Denis G Alekseev
- Research and Development Institute of Biotechnologies, Samara State Medical University, Chapayevskaya St. 89, 443099 Samara, Russia
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Ding Z, Tang N, Huang J, Cao X, Wu S. Global hotspots and emerging trends in 3D bioprinting research. Front Bioeng Biotechnol 2023; 11:1169893. [PMID: 37304138 PMCID: PMC10248473 DOI: 10.3389/fbioe.2023.1169893] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/08/2023] [Indexed: 06/13/2023] Open
Abstract
Three-dimensional (3D) bioprinting is an advanced tissue engineering technique that has received a lot of interest in the past years. We aimed to highlight the characteristics of articles on 3D bioprinting, especially in terms of research hotspots and focus. Publications related to 3D bioprinting from 2007 to 2022 were acquired from the Web of Science Core Collection database. We have used VOSviewer, CiteSpace, and R-bibliometrix to perform various analyses on 3,327 published articles. The number of annual publications is increasing globally, a trend expected to continue. The United States and China were the most productive countries with the closest cooperation and the most research and development investment funds in this field. Harvard Medical School and Tsinghua University are the top-ranked institutions in the United States and China, respectively. Dr. Anthony Atala and Dr. Ali Khademhosseini, the most productive researchers in 3D bioprinting, may provide cooperation opportunities for interested researchers. Tissue Engineering Part A contributed the largest publication number, while Frontiers in Bioengineering and Biotechnology was the most attractive journal with the most potential. As for the keywords in 3D bioprinting, Bio-ink, Hydrogels (especially GelMA and Gelatin), Scaffold (especially decellularized extracellular matrix), extrusion-based bioprinting, tissue engineering, and in vitro models (organoids particularly) are research hotspots analyzed in the current study. Specifically, the research topics "new bio-ink investigation," "modification of extrusion-based bioprinting for cell viability and vascularization," "application of 3D bioprinting in organoids and in vitro model" and "research in personalized and regenerative medicine" were predicted to be hotspots for future research.
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Affiliation(s)
- Zhiyu Ding
- Department of Orthopaedics, Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Ning Tang
- Department of Orthopaedics, Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Junjie Huang
- Department of Orthopaedics, Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Xu Cao
- Department of Orthopaedics, Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Song Wu
- Department of Orthopaedics, Third Xiangya Hospital of Central South University, Changsha, Hunan, China
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4
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Baltazar T, Jiang B, Moncayo A, Merola J, Albanna MZ, Saltzman WM, Pober JS. 3D bioprinting of an implantable xeno-free vascularized human skin graft. Bioeng Transl Med 2023; 8:e10324. [PMID: 36684084 PMCID: PMC9842062 DOI: 10.1002/btm2.10324] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 03/31/2022] [Indexed: 01/25/2023] Open
Abstract
Bioengineered tissues or organs produced using matrix proteins or components derived from xenogeneic sources pose risks of allergic responses, immune rejection, or even autoimmunity. Here, we report successful xeno-free isolation, expansion, and cryopreservation of human endothelial cells (EC), fibroblasts (FBs), pericytes (PCs), and keratinocytes (KCs). We further demonstrate the bioprinting of a human skin substitute with a dermal layer containing xeno-free cultured human EC, FBs, and PCs in a xeno-free bioink containing human collagen type I and fibronectin layered in a biocompatible polyglycolic acid mesh and subsequently seeded with xeno-free human KCs to form an epidermal layer. Following implantation of such bilayered skin grafts on the dorsum of immunodeficient mice, KCs form a mature stratified epidermis with rete ridge-like structures. The ECs and PCs form human EC-lined perfused microvessels within 2 weeks after implantation, preventing graft necrosis, and eliciting further perfusion of the graft by angiogenic host microvessels. As proof-of-concept, we generated 12 individual grafts using a single donor of all four cell types. In summary, we describe the fabrication of a bioprinted vascularized bilayered skin substitute under completely xeno-free culture conditions demonstrating feasibility of a xeno-free approach to complex tissue engineering.
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Affiliation(s)
- Tania Baltazar
- Department of Immunobiology, Yale School of MedicineNew HavenConnecticutUSA
| | - Bo Jiang
- Department of SurgeryYale University School of MedicineNew HavenConnecticutUSA
- Department of Vascular SurgeryThe First Hospital of China Medical UniversityShenyangChina
| | - Alejandra Moncayo
- Department of Chronic Disease EpidemiologyYale University School of Public HealthNew HavenConnecticutUSA
- College of MedicineSUNY Downstate Health Sciences UniversityBrooklynNew YorkUSA
| | - Jonathan Merola
- Department of SurgeryYale University School of MedicineNew HavenConnecticutUSA
- Department of SurgeryColumbia University Medical CenterNew YorkNew YorkUSA
| | - Mohammad Z. Albanna
- Humabiologics IncPhoenixArizonaUSA
- Department of General SurgeryAtrium Health Wake Forest BaptistWinston‐SalemNorth CarolinaUSA
| | - W. Mark Saltzman
- Department of Biomedical EngineeringYale UniversityNew HavenConnecticutUSA
| | - Jordan S. Pober
- Department of Immunobiology, Yale School of MedicineNew HavenConnecticutUSA
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5
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Ali SM, Patrawalla NY, Kajave NS, Brown AB, Kishore V. Species-Based Differences in Mechanical Properties, Cytocompatibility, and Printability of Methacrylated Collagen Hydrogels. Biomacromolecules 2022; 23:5137-5147. [PMID: 36417692 PMCID: PMC11103796 DOI: 10.1021/acs.biomac.2c00985] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Collagen methacrylation is a promising approach to generate photo-cross-linkable cell-laden hydrogels with improved mechanical properties. However, the impact of species-based variations in amino acid composition and collagen isolation method on methacrylation degree (MD) and its subsequent effects on the physical properties of methacrylated collagen (CMA) hydrogels and cell response are unknown. Herein, we compared the effects of three collagen species (bovine, human, and rat), two collagen extraction methods (pepsin digestion and acid extraction), and two photoinitiators (lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) and Irgacure-2959 (I-2959)) on the physical properties of CMA hydrogels, printability and mesenchymal stem cell (MSC) response. Human collagen showed the highest MD. LAP was more cytocompatible than I-2959. The compressive modulus and cell viability of rat CMA were significantly higher (p < 0.05) than bovine CMA. Human CMA yielded constructs with superior print fidelity. Together, these results suggest that careful selection of collagen source and cross-linking conditions is essential for biomimetic design of CMA hydrogels for tissue engineering applications.
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Affiliation(s)
- Sarah M Ali
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida32901, United States
| | - Nashaita Y Patrawalla
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida32901, United States
| | - Nilabh S Kajave
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida32901, United States
| | - Alan B Brown
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida32901, United States
| | - Vipuil Kishore
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida32901, United States
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6
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Baltazar T, Kajave NS, Rodriguez M, Chakraborty S, Jiang B, Skardal A, Kishore V, Pober JS, Albanna MZ. Native human collagen type I provides a viable physiologically relevant alternative to xenogeneic sources for tissue engineering applications: A comparative in vitro and in vivo study. J Biomed Mater Res B Appl Biomater 2022; 110:2323-2337. [PMID: 35532208 PMCID: PMC11103545 DOI: 10.1002/jbm.b.35080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 04/18/2022] [Accepted: 04/26/2022] [Indexed: 12/26/2022]
Abstract
Xenogeneic sources of collagen type I remain a common choice for regenerative medicine applications due to ease of availability. Human and animal sources have some similarities, but small variations in amino acid composition can influence the physical properties of collagen, cellular response, and tissue remodeling. The goal of this work is to compare human collagen type I-based hydrogels versus animal-derived collagen type I-based hydrogels, generated from commercially available products, for their physico-chemical properties and for tissue engineering and regenerative medicine applications. Specifically, we evaluated whether the native human skin type I collagen could be used in the three most common research applications of this protein: as a substrate for attachment and proliferation of conventional 2D cell culture; as a source of matrix for a 3D cell culture; and as a source of matrix for tissue engineering. Results showed that species and tissue specific variations of collagen sources significantly impact the physical, chemical, and biological properties of collagen hydrogels including gelation kinetics, swelling ratio, collagen fiber morphology, compressive modulus, stability, and metabolic activity of hMSCs. Tumor constructs formulated with human skin collagen showed a differential response to chemotherapy agents compared to rat tail collagen. Human skin collagen performed comparably to rat tail collagen and enabled assembly of perfused human vessels in vivo. Despite differences in collagen manufacturing methods and supplied forms, the results suggest that commercially available human collagen can be used in lieu of xenogeneic sources to create functional scaffolds, but not all sources of human collagen behave similarly. These factors must be considered in the development of 3D tissues for drug screening and regenerative medicine applications.
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Affiliation(s)
- Tânia Baltazar
- Department of Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Nilabh S. Kajave
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida, USA
| | - Marco Rodriguez
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Srija Chakraborty
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Bo Jiang
- Department of Surgery, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Vascular Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Aleksander Skardal
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University and Arthur G. James Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Vipuil Kishore
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida, USA
| | - Jordan S. Pober
- Department of Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Mohammad Z. Albanna
- Humabiologics Inc, Phoenix, Arizona, USA
- Department of General Surgery, Wake Forest Baptist Health, Winston-Salem, North Carolina, USA
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7
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Marzi J, Fuhrmann E, Brauchle E, Singer V, Pfannstiel J, Schmidt I, Hartmann H. Non-Invasive Three-Dimensional Cell Analysis in Bioinks by Raman Imaging. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30455-30465. [PMID: 35777738 PMCID: PMC9284518 DOI: 10.1021/acsami.1c24463] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
3D bioprinting is an emerging biofabrication strategy using bioinks, comprising cells and biocompatible materials, to produce functional tissue models. Despite progress in building increasingly complex objects, biological analyses in printed constructs remain challenging. Especially, methods that allow non-invasive and non-destructive evaluation of embedded cells are largely missing. Here, we implemented Raman imaging for molecular-sensitive investigations on bioprinted objects. Different aspects such as culture formats (2D, 3D-cast, and 3D-printed), cell types (endothelial cells and fibroblasts), and the selection of the biopolymer (alginate, alginate/nanofibrillated cellulose, alginate/gelatin) were considered and evaluated. Raman imaging allowed for marker-independent identification and localization of subcellular components against the surrounding biomaterial background. Furthermore, single-cell analysis of spectral signatures, performed by multivariate analysis, demonstrated discrimination between endothelial cells and fibroblasts and identified cellular features influenced by the bioprinting process. In summary, Raman imaging was successfully established to analyze cells in 3D culture in situ and evaluate them with regard to the localization of different cell types and their molecular phenotype as a valuable tool for quality control of bioprinted objects.
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Affiliation(s)
- Julia Marzi
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
- Institute
of Biomedical Engineering, Department for Medical Technologies &
Regenerative Medicine, Eberhard Karls University, Tübingen 72074, Germany
- Cluster
of Excellence iFIT (EXC 2180) Image-Guided and Functionally Instructed
Tumor Therapies, University of Tübingen, Tübingen 72074, Germany
| | - Ellena Fuhrmann
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
| | - Eva Brauchle
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
- Institute
of Biomedical Engineering, Department for Medical Technologies &
Regenerative Medicine, Eberhard Karls University, Tübingen 72074, Germany
- Cluster
of Excellence iFIT (EXC 2180) Image-Guided and Functionally Instructed
Tumor Therapies, University of Tübingen, Tübingen 72074, Germany
| | - Verena Singer
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
| | - Jessica Pfannstiel
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
| | - Isabelle Schmidt
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
| | - Hanna Hartmann
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
- . Phone: +49712151530872
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8
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Cardoso LMDF, Barreto T, Gama JFG, Alves LA. Natural Biopolymers as Additional Tools for Cell Microencapsulation Applied to Cellular Therapy. Polymers (Basel) 2022; 14:polym14132641. [PMID: 35808686 PMCID: PMC9268758 DOI: 10.3390/polym14132641] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 12/10/2022] Open
Abstract
One of the limitations in organ, tissue or cellular transplantations is graft rejection. To minimize or prevent this, recipients must make use of immunosuppressive drugs (IS) throughout their entire lives. However, its continuous use generally causes several side effects. Although some IS dose reductions and withdrawal strategies have been employed, many patients do not adapt to these protocols and must return to conventional IS use. Therefore, many studies have been carried out to offer treatments that may avoid IS administration in the long term. A promising strategy is cellular microencapsulation. The possibility of microencapsulating cells originates from the opportunity to use biomaterials that mimic the extracellular matrix. This matrix acts as a support for cell adhesion and the syntheses of new extracellular matrix self-components followed by cell growth and survival. Furthermore, by involving the cells in a polymeric matrix, the matrix acts as an immunoprotective barrier, protecting cells against the recipient’s immune system while still allowing essential cell survival molecules to diffuse bilaterally through the polymer matrix pores. In addition, this matrix can be associated with IS, thus diminishing systemic side effects. In this context, this review will address the natural biomaterials currently in use and their importance in cell therapy.
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9
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Bousalis D, McCrary MW, Vaughn N, Hlavac N, Evering A, Kolli S, Song YH, Morley C, Angelini T, Schmidt CE. Decellularized peripheral nerve as an injectable delivery vehicle for neural applications. J Biomed Mater Res A 2022; 110:595-611. [PMID: 34590403 PMCID: PMC8742792 DOI: 10.1002/jbm.a.37312] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 12/17/2022]
Abstract
Damage to the nervous system can result in loss of sensory and motor function, paralysis, or even death. To facilitate neural regeneration and functional recovery, researchers have employed biomaterials strategies to address both peripheral and central nervous system injuries. Injectable hydrogels that recapitulate native nerve extracellular matrix are especially promising for neural tissue engineering because they offer more flexibility for minimally invasive applications and provide a growth-permissive substrate for neural cell types. Here, we explore the development of injectable hydrogels derived from decellularized rat peripheral nerves (referred to as "injectable peripheral nerve [iPN] hydrogels"), which are processed using a newly developed sodium deoxycholate and DNase (SDD) decellularization method. We assess the gelation kinetics, mechanical properties, cell bioactivity, and drug release kinetics of the iPN hydrogels. The iPN hydrogels thermally gel when exposed to 37°C in under 20 min and have mechanical properties similar to neural tissue. The hydrogels demonstrate in vitro biocompatibility through support of Schwann cell viability and metabolic activity. Additionally, iPN hydrogels promote greater astrocyte spreading compared to collagen I hydrogels. Finally, the iPN is a promising delivery vehicle of drug-loaded microparticles for a combinatorial approach to neural injury therapies.
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Affiliation(s)
- Deanna Bousalis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL
| | - Michaela W. McCrary
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL
| | - Natalie Vaughn
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL
| | - Nora Hlavac
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL
| | - Ashley Evering
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL
| | - Shruti Kolli
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL
| | - Young Hye Song
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL,Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR
| | - Cameron Morley
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL
| | - Thomas Angelini
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL
| | - Christine E. Schmidt
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL
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10
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Deus IA, Santos SC, Custódio CA, Mano JF. Designing highly customizable human based platforms for cell culture using proteins from the amniotic membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 134:112574. [PMID: 35525741 DOI: 10.1016/j.msec.2021.112574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/16/2021] [Accepted: 11/24/2021] [Indexed: 12/11/2022]
Abstract
In the past few years researchers have witnessed a paradigm shift in the development of biomaterials for drug discovery, tissue engineering, and regenerative medicine. After the great advances resulting from the transition of the 2D to the 3D, the new focus has been to increase the clinical relevance of such systems, as well as avoid the use of animals, by developing platforms that better replicate the human physiology in vitro. In this sense, we envisage the use of human matrices extracted from ethically sourced and readily available tissues as an optimal and promising alternative to currently used approaches. Hereupon, we report for the first time the chemical modification of human ECM proteins from the amniotic membrane (AM) with photoresponsive groups to produce bioinks and hydrogel precursors to engineer customizable platforms that are representative of native tissues and capable of supporting long-term cell culture. Our results demonstrated an efficient decellularization, liquefaction and functionalization of AM-derived ECM with methacryloyl domains (AMMA), with production of stable and versatile hydrogels. Mechanical characterization evidenced an increased compression strength as a function of methacrylation degree and decellularized ECM concentration. Three-dimensional (3D) stem cell culture in the AMMA hydrogels resulted in viable and proliferative cells up to 7 days; moreover, the mouldable character of the hydrogel precursors permits the processing of patterned hydrogel constructs allowing the control over cellular alignment and elongation, or microgels with highly tunable shape.
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Affiliation(s)
- Inês A Deus
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Sara C Santos
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Catarina A Custódio
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - João F Mano
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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