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Skopinska-Wisniewska J, Tuszynska M, Kaźmierski Ł, Bartniak M, Bajek A. Gelatin-Sodium Alginate Hydrogels Cross-Linked by Squaric Acid and Dialdehyde Starch as a Potential Bio-Ink. Polymers (Basel) 2024; 16:2560. [PMID: 39339023 PMCID: PMC11435377 DOI: 10.3390/polym16182560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 08/29/2024] [Accepted: 09/05/2024] [Indexed: 09/30/2024] Open
Abstract
Hydrogels as biomaterials possess appropriate physicochemical and mechanical properties that enable the formation of a three-dimensional, stable structure used in tissue engineering and 3D printing. The integrity of the hydrogel composition is due to the presence of covalent or noncovalent cross-linking bonds. Using various cross-linking methods and agents is crucial for adjusting the properties of the hydrogel to specific biomedical applications, e.g., for direct bioprinting. The research subject was mixtures of gel-forming polymers: sodium alginate and gelatin. The polymers were cross-linked ionically with the addition of CaCl2 solutions of various concentrations (10%, 5%, 2.5%, and 1%) and covalently using squaric acid (SQ) and dialdehyde starch (DAS). Initially, the polymer mixture's composition and the hydrogel cross-linking procedure were determined. The obtained materials were characterized by mechanical property tests, swelling degree, FTIR, SEM, thermal analysis, and biological research. It was found that the tensile strength of hydrogels cross-linked with 1% and 2.5% CaCl2 solutions was higher than after using a 10% solution (130 kPa and 80 kPa, respectively), and at the same time, the elongation at break increased (to 75%), and the stiffness decreased (Young Modulus is 169 kPa and 104 kPa, respectively). Moreover, lowering the concentration of the CaCl2 solution from 10% to 1% reduced the final material's toxicity. The hydrogels cross-linked with 1% CaCl2 showed lower degradation temperatures and higher weight losses than those cross-linked with 2.5% CaCl2 and therefore were less thermally stable. Additional cross-linking using SQ and DAS had only a minor effect on the strength of the hydrogels, but especially the use of 1% DAS increased the material's elasticity. All tested hydrogels possess a 3D porous structure, with pores of irregular shape and heterogenic size, and their swelling degree initially increased sharply to the value of approx. 1000% during the first 6 h, and finally, it stabilized at a level of 1200-1600% after 24 h. The viscosity of 6% gelatin and 2% alginate solutions with and without cross-linking agents was similar, and they were only slightly shear-thinning. It was concluded that a mixture containing 2% sodium alginate and 6% gelatin presented optimal properties after gel formation and lowering the concentration of the CaCl2 solution to 1% improved the hydrogel's biocompatibility and positively influenced the cross-linking efficiency. Moreover, chemical cross-linking by DAS or SQ additionally improved the final hydrogel's properties and the mixture's printability. In conclusion, among the tested systems, the cross-linking of 6% gelatin-2% alginate mixtures by 1% DAS addition and 1% CaCl2 solution is optimal for tissue engineering applications and potentially suitable for 3D printing.
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Affiliation(s)
- Joanna Skopinska-Wisniewska
- Chair of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7 Street, 87-100 Torun, Poland
| | - Marta Tuszynska
- Chair of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7 Street, 87-100 Torun, Poland
- Department of Tissue Engineering, Chair of Urology and Andrology, Ludwik Rydygier Collegium Medicum in Bydgoszcz Nicolaus Copernicus University in Torun, Karlowicza 24 Street, 85-092 Bydgoszcz, Poland
| | - Łukasz Kaźmierski
- Department of Tissue Engineering, Chair of Urology and Andrology, Ludwik Rydygier Collegium Medicum in Bydgoszcz Nicolaus Copernicus University in Torun, Karlowicza 24 Street, 85-092 Bydgoszcz, Poland
| | - Mateusz Bartniak
- Faculty of Mechanical Engineering, Institute of Materials Science and Engineering, Lodz University of Technology, Stefanowskiego Str. 1/15, 90-537 Lodz, Poland
| | - Anna Bajek
- Department of Oncology, Ludwik Rydygier Collegium Medicum in Bydgoszcz Nicolaus Copernicus University in Torun, Lukasiewicza 1, 85-821 Bydgoszcz, Poland
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Colombi S, Sáez I, Borras N, Estrany F, Pérez-Madrigal MM, García-Torres J, Morgado J, Alemán C. Glyoxal crosslinking of electro-responsive alginate-based hydrogels: Effects on the properties. Carbohydr Polym 2024; 337:122170. [PMID: 38710559 DOI: 10.1016/j.carbpol.2024.122170] [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: 01/02/2024] [Revised: 04/08/2024] [Accepted: 04/14/2024] [Indexed: 05/08/2024]
Abstract
To improve the features of alginate-based hydrogels in physiological conditions, Ca2+-crosslinked semi-interpenetrated hydrogels formed by poly(3,4-ethylenedioxythiophene):polystyrene sulfonic acid and alginate (PEDOT/Alg) were subjected to a treatment with glyoxal to form a dual ionic/covalent network. The covalent network density was systematically varied by considering different glyoxalization times (tG). The content of Ca2+ was significantly higher for the untreated hydrogel than for the glyoxalized ones, while the properties of the hydrogels were found to largely depend on tG. The porosity and swelling capacity decreased with increasing tG, while the stiffness and electrical conductance retention capacity increased with tG. The potentiodynamic response of the hydrogels notably depended on the amount of conformational restraints introduced by the glyoxal, which is a very short crosslinker. Thus, the re-accommodation of the polymer chains during the cyclic potential scans became more difficult with increasing number of covalent crosslinks. This information was used to improve the performance of untreated PEDOT/Alg as electrochemical sensor of hydrogen peroxide by simply applying a tG of 5 min. Overall, the control of the properties of glyoxalized hydrogels through tG is very advantageous and can be used as an on-demand strategy to improve the performance of such materials depending on the application.
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Affiliation(s)
- Samuele Colombi
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Isabel Sáez
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Nuria Borras
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Francesc Estrany
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Maria M Pérez-Madrigal
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - José García-Torres
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain; Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain.
| | - Jorge Morgado
- Department of Bioengineering, Instituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Carlos Alemán
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya - BarcelonaTech, C/ Eduard Maristany 10-14, 08019 Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028 Barcelona, Spain.
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3
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Bo T, Pascucci E, Capuani S, Campa-Carranza JN, Franco L, Farina M, Secco J, Becchi S, Cavazzana R, Joubert AL, Hernandez N, Chua CYX, Grattoni A. 3D bioprinted mesenchymal stem cell laden scaffold enhances subcutaneous vascularization for delivery of cell therapy. Biomed Microdevices 2024; 26:29. [PMID: 38888669 PMCID: PMC11189315 DOI: 10.1007/s10544-024-00713-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2024] [Indexed: 06/20/2024]
Abstract
Subcutaneous delivery of cell therapy is an appealing minimally-invasive strategy for the treatment of various diseases. However, the subdermal site is poorly vascularized making it inadequate for supporting engraftment, viability, and function of exogenous cells. In this study, we developed a 3D bioprinted scaffold composed of alginate/gelatin (Alg/Gel) embedded with mesenchymal stem cells (MSCs) to enhance vascularization and tissue ingrowth in a subcutaneous microenvironment. We identified bio-ink crosslinking conditions that optimally recapitulated the mechanical properties of subcutaneous tissue. We achieved controlled degradation of the Alg/Gel scaffold synchronous with host tissue ingrowth and remodeling. Further, in a rat model, the Alg/Gel scaffold was superior to MSC-embedded Pluronic hydrogel in supporting tissue development and vascularization of a subcutaneous site. While the scaffold alone promoted vascular tissue formation, the inclusion of MSCs in the bio-ink further enhanced angiogenesis. Our findings highlight the use of simple cell-laden degradable bioprinted structures to generate a supportive microenvironment for cell delivery.
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Affiliation(s)
- Tommaso Bo
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
| | - Elia Pascucci
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
- Department of Applied Science and Technology, Politecnico Di Torino, Turin, Italy
| | - Simone Capuani
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
| | - Jocelyn Nikita Campa-Carranza
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
- School of Medicine and Health Sciences, Tecnologico de Monterrey, Monterrey, NL, Mexico
| | - Letizia Franco
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
- Department of Applied Science and Technology, Politecnico Di Torino, Turin, Italy
| | - Marco Farina
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
| | - Jacopo Secco
- Department of Electronics and Telecommunications, Politecnico Di Torino, Turin, Italy
| | - Sara Becchi
- Department of Electronics and Telecommunications, Politecnico Di Torino, Turin, Italy
| | - Rosanna Cavazzana
- Department of Electronics and Telecommunications, Politecnico Di Torino, Turin, Italy
| | - Ashley L Joubert
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
| | - Nathanael Hernandez
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
| | - Corrine Ying Xuan Chua
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX77030, , R8-111, USA.
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA.
- Department of Radiation Oncology, Houston Methodist Hospital, Houston, TX, USA.
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Bigham A, Fasolino I, Borsacchi S, Valente C, Calucci L, Turacchio G, Pannico M, Serrano-Ruiz M, Ambrosio L, Raucci MG. A theragenerative bio-nanocomposite consisting of black phosphorus quantum dots for bone cancer therapy and regeneration. Bioact Mater 2024; 35:99-121. [PMID: 38283385 PMCID: PMC10818087 DOI: 10.1016/j.bioactmat.2024.01.018] [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: 12/03/2023] [Revised: 01/11/2024] [Accepted: 01/18/2024] [Indexed: 01/30/2024] Open
Abstract
Recently, the term theragenerative has been proposed for biomaterials capable of inducing therapeutic approaches followed by repairing/regenerating the tissue/organ. This study is focused on the design of a new theragenerative nanocomposite composed of an amphiphilic non-ionic surfactant (Pluronic F127), bioactive glass (BG), and black phosphorus (BP). The nanocomposite was prepared through a two-step synthetic strategy, including a microwave treatment that turned BP nanosheets (BPNS) into quantum dots (BPQDs) with 5 ± 2 nm dimensions in situ. The effects of surfactant and microwave treatment were assessed in vitro: the surfactant distributes the ions homogenously throughout the composite and the microwave treatment chemically stabilizes the composite. The presence of BP enhanced bioactivity and promoted calcium phosphate formation in simulated body fluid. The inherent anticancer activity of BP-containing nanocomposites was tested against osteosarcoma cells in vitro, finding that 150 μg mL-1 was the lowest concentration which prevented the proliferation of SAOS-2 cells, while the counterpart without BP did not affect the cell growth rate. Moreover, the apoptosis pathways were evaluated and a mechanism of action was proposed. NIR irradiation was applied to induce further proliferation suppression on SAOS-2 cells through hyperthermia. The inhibitory effects of bare BP nanomaterials and nanocomposites on the migration and invasion of bone cancer, breast cancer, and prostate cancer cells were assessed in vitro to determine the anticancer potential of nanomaterials against primary and secondary bone cancers. The regenerative behavior of the nanocomposites was tested with healthy osteoblasts and human mesenchymal stem cells; the BPQDs-incorporated nanocomposite significantly promoted the proliferation of osteoblast cells and induced the osteogenic differentiation of stem cells. This study introduces a new multifunctional theragenerative platform with promising potential for simultaneous bone cancer therapy and regeneration.
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Affiliation(s)
- Ashkan Bigham
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy (IPCB-CNR), Viale John Fitzgerald Kennedy 54, Mostra d’Oltremare Padiglione 20, 80125, Naples, Italy
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125, Naples, Italy
| | - Ines Fasolino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy (IPCB-CNR), Viale John Fitzgerald Kennedy 54, Mostra d’Oltremare Padiglione 20, 80125, Naples, Italy
| | - Silvia Borsacchi
- Institute for the Chemistry of OrganoMetallic Compounds-ICCOM, Italian National Research Council-CNR, via G. Moruzzi 1, 56124, Pisa, Italy
- Center for Instrument Sharing of the University of Pisa (CISUP), 56126, Pisa, Italy
| | - Carmen Valente
- Institute of Experimental Endocrinology and Oncology “G. Salvatore” (IEOS), National Research Council (CNR), Via Pietro Castellino 111, 80131, Napoli, Italy
| | - Lucia Calucci
- Institute for the Chemistry of OrganoMetallic Compounds-ICCOM, Italian National Research Council-CNR, via G. Moruzzi 1, 56124, Pisa, Italy
- Center for Instrument Sharing of the University of Pisa (CISUP), 56126, Pisa, Italy
| | - Gabriele Turacchio
- Institute of Experimental Endocrinology and Oncology “G. Salvatore” (IEOS), National Research Council (CNR), Via Pietro Castellino 111, 80131, Napoli, Italy
| | - Marianna Pannico
- Institute of Polymers, Composites, and Biomaterials, National Research Council of Italy (IPCB-CNR), Pozzuoli, Italy
| | - Manuel Serrano-Ruiz
- Institute for the Chemistry of OrganoMetallic Compounds-ICCOM, National Research Council-CNR, Sesto Fiorentino, Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy (IPCB-CNR), Viale John Fitzgerald Kennedy 54, Mostra d’Oltremare Padiglione 20, 80125, Naples, Italy
| | - Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy (IPCB-CNR), Viale John Fitzgerald Kennedy 54, Mostra d’Oltremare Padiglione 20, 80125, Naples, Italy
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Kumar A, Sah DK, Rai Y, Yadav AK, Solanki PR, Ansari MS, Bhatt AN. Granular Hemostatic Composite of Alginate, Calcium, and Zinc for Rapid and Effective Management of Post-Traumatic Hemorrhage. ACS APPLIED MATERIALS & INTERFACES 2024; 16:10565-10579. [PMID: 38377563 DOI: 10.1021/acsami.3c15048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Post-traumatic hemorrhage, which can result from accidents or battlefield injuries, is a significant global concern due to the high prehospital mortality rate. Substantial efforts have been made to develop hemostatic agents that can effectively reduce hemorrhage in the immediate aftermath of a traumatic event. The present study investigated the potential efficacy of Ca2+ and Zn2+ supplemented sodium alginate-based dry hemostatic particles (SA-CZ DHP) to manage excessive blood loss or post-traumatic hemorrhage. SA-CZ DHP were developed, followed by their physical and biochemical characterization, cytocompatibility and hemocompatibility testing, and critical evaluation of the hemostatic potential in vitro and in vivo. The safe SA-CZ DHP showed high absorption and accelerated blood clotting kinetics with reduced coagulation time (≈70%, p < 0.0001) in whole human blood, observed with insignificant hemolysis and uninterrupted RBC morphology. SA-CZ DHP significantly reduced the mean blood loss (≈90% in SD rats tail incision), and bleeding time (≈60% in BALB/c mice tail incision) was at par with commercially available Celox hemostatic granules. In conclusion, the biocompatible SA-CZ DHP exhibited rapid and effective management of excessive blood loss. It is also pertinent to note that the developed formulation could be a cost-effective alternative to its commercial counterparts.
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Affiliation(s)
- Abhishek Kumar
- Institute of Nuclear Medicine & Allied Sciences, Delhi 110054, India
- Department of Biomedical Sciences, Shaheed Rajguru College of Applied Sciences for Women, University of Delhi, Delhi 110096, India
| | - Dhananjay K Sah
- Institute of Nuclear Medicine & Allied Sciences, Delhi 110054, India
| | - Yogesh Rai
- Institute of Nuclear Medicine & Allied Sciences, Delhi 110054, India
| | - Amit K Yadav
- Special Centre for Nanoscience, Jawaharlal Nehru University, Delhi 110067, India
| | - Pratima R Solanki
- Special Centre for Nanoscience, Jawaharlal Nehru University, Delhi 110067, India
| | - Mohd Saquib Ansari
- Department of Biomedical Sciences, Shaheed Rajguru College of Applied Sciences for Women, University of Delhi, Delhi 110096, India
| | - Anant N Bhatt
- Institute of Nuclear Medicine & Allied Sciences, Delhi 110054, India
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Angaria N, Saini S, Hussain MS, Sharma S, Singh G, Khurana N, Kumar R. Natural polymer-based hydrogels: versatile biomaterials for biomedical applications. INT J POLYM MATER PO 2024:1-19. [DOI: 10.1080/00914037.2023.2301645] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 12/31/2023] [Indexed: 09/05/2024]
Affiliation(s)
- Neeti Angaria
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Sumant Saini
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Md. Sadique Hussain
- School of Pharmaceutical Sciences, Jaipur National University, Jaipur, India
| | - Sakshi Sharma
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Gurvinder Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Navneet Khurana
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Rajesh Kumar
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
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Abdelmonem N, Salama R, Mostafa DH. Can an Alginate-based Wound Dressing Modified with Garden Cress Substitute for COE-PAK as a Wound Dressing? An In Vitro Study. J Contemp Dent Pract 2023; 24:787-797. [PMID: 38152912 DOI: 10.5005/jp-journals-10024-3584] [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] [Indexed: 12/29/2023]
Abstract
AIM The aim of the current study was to prepare a natural oral wound dressing from alginate modified with garden cress (GC), a rich source of antibacterial phytochemical compounds essential for wound healing. MATERIALS AND METHODS Sodium alginate (SA) dressing (negative control group), was prepared and modified with GC seeds extracts (25 µg/mL and 50 µg/mL) as the intervention groups, and COE-PAK was the positive control group. Cytotoxicity was measured using WST-1 assay (n = 15) after 24 and 48 hours. The in vitro wound healing assay (n = 15) was assessed in terms of wound width, and cell migration rate (0, 24, 48, and 72 hours). Agar diffusion test was performed to investigate the antibacterial action (n = 15) of the groups against Streptococcus mutans and Lactobacillus casei strains. Results were significant at p ≤ 0.05. RESULTS There was no statistically significant difference in cytotoxicity in all groups (p = 0.24 at 24 hours and 0.1 at 48 hours). Garden cress-containing groups revealed the lowest mean value of wound width (0.27 mm ± 0.01 and 0.23 mm ± 0.01 for 25 µg/mL and 50 µg/mL, respectively at 48 hours) and the highest mean value of cell migration rate (0.013 mm/hour ± 0.004 and 0.014 mm/hour ± 0.004 for 25 µg/mL and 50 µg/mL, respectively at 48 hours), in addition to the highest antibacterial action (1.49 mm ± 0.05 and 2.14 mm ± 0.09 for 25 µg/mL and 50 µg/mL, respectively against S. mutans, 1.43 mm ± 0.07 and 2.55 mm ± 0.09 for 25 µg/mL and 50 µg/mL, respectively against L. casei). CONCLUSION Alginate wound dressing modified with GC extract could be considered a promising wound dressing material in terms of wound healing and antibacterial action. CLINICAL SIGNIFICANCE Ready-to-use alginate-based wound dressing modified with GC extract may represent a promising natural alternative to the most commonly used oral wound dressing (COE-PAK).
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Affiliation(s)
- Nahla Abdelmonem
- Biomaterials Department, Faculty of Dentistry, Cairo University, Cairo, Egypt, Phone: +0201284611601, e-mail:
| | - Rania Salama
- Biomaterials Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Dina H Mostafa
- Biomaterials Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
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Samuels TL, Blaine-Sauer S, Yan K, Plehhova K, Coyle C, Johnston N. Topical Alginate Protection against Pepsin-Mediated Esophageal Damage: E-Cadherin Proteolysis and Matrix Metalloproteinase Induction. Int J Mol Sci 2023; 24:ijms24097932. [PMID: 37175640 PMCID: PMC10178445 DOI: 10.3390/ijms24097932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Epithelial barrier dysfunction is a hallmark of gastroesophageal reflux disease (GERD) related to symptom origination, inflammatory remodeling and carcinogenesis. Alginate-based antireflux medications were previously shown to topically protect against peptic barrier disruption, yet the molecular mechanisms of injury and protection were unclear. Herein, Barrett's esophageal (BAR-T) cells were pretreated with buffered saline (HBSS; control), dilute alginate medications (Gaviscon Advance or Gaviscon Double Action, Reckitt Benckiser), a viscosity-matched placebo, or ADAM10 and matrix metalloproteinase (MMP) inhibitors before exposure to HBSS pH7.4 or pH4 ± 1 mg/mL pepsin for 10-60 min. Cell viability was assessed by ATP assay; mediators of epithelial integrity, E-cadherin, ADAM10, and MMPs were examined by Western blot and qPCR. Alginate rescued peptic reduction of cell viability (p < 0.0001). Pepsin-pH4 yielded E-cadherin fragments indicative of regulated intramembrane proteolysis (RIP) which was not rescued by inhibitors of known E-cadherin sheddases. Transcriptional targets of E-cadherin RIP fragments were elevated at 24 h (MMP-1,2,9,14; p < 0.01). Alginate rescued E-cadherin cleavage, ADAM10 maturation, and MMP induction (p < 0.01). Results support RIP as a novel mechanism of peptic injury during GERD. Alginate residue after wash-out to mimic physiologic esophageal clearance conferred lasting protection against pepsin-induced molecular mechanisms that may exacerbate GERD severity and promote carcinogenesis in the context of weakly acidic reflux.
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Affiliation(s)
- Tina L Samuels
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Simon Blaine-Sauer
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Ke Yan
- Department of Pediatrics Quantitative Health Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | | | | | - Nikki Johnston
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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9
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GÖKHAN A, ÇAVUŞOĞLU T, KILIÇ KD, ŞİRİN C, TOMRUK C, YİĞİTTÜRK G, ERBAŞ O, YILDIRIM SÖZMEN E, BAKA M. Effects of vitrification solution supplemented with platelet-rich plasma in rat ovarian tissue cryopreservation. Turk J Med Sci 2023; 53:1281-1292. [PMID: 38813015 PMCID: PMC10763808 DOI: 10.55730/1300-0144.5694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 10/26/2023] [Accepted: 04/04/2023] [Indexed: 05/31/2024] Open
Abstract
Background/aim The subject of this study was to investigate the utility of platelet-rich plasma (PRP) in the cryopreservation process to reduce cryodamage and increase tissue viability. Materials and methods Twenty-one female Wistar rats were randomly allocated to three groups. In Group 1 (G1), rats were not subjected to vitrification (n = 7). Group 2 (G2) was the vitrification group in which PRP was added to the basic vitrification solution (n = 7). Group 3 (G3) was the vitrification group in which fetal bovine serum was added to the basic vitrification solution (n = 7). Warmed tissues were evaluated with histochemical (HC) and immunohistochemical (IHC) staining, the TUNEL method, immunofluorescence (IF) staining, and biochemical analyses. Results The percentages of IHC staining, TUNEL method positivity, and IF staining were significantly higher in G2 compared to both G1 and G3 (P < 0.05). G2 ovaries exhibited a significant increase in both malondialdehyde and catalase values in comparison to G1 (P < 0.05). In HC staining, degenerations in primary and secondary follicles and in ovarian tissue were more common in the PRP-supplemented group. The calcium used in PRP activation was suspected to have increased the degeneration and prevented the possible positive effects of PRP. Conclusion To the best of our knowledge, PRP-supplemented vitrification solution was used for the first time in the literature in this study in whole rat ovarian tissue vitrification. If PRP is to be used as a component in vitrification solution for rat ovarian tissue, the use of lower amounts of calcium or different methods in PRP activation, or the use of nonactivated PRP, should be considered from the beginning.
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Affiliation(s)
- Aylin GÖKHAN
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir,
Turkiye
| | - Türker ÇAVUŞOĞLU
- Department of Histology and Embryology, Faculty of Medicine, İzmir Bakırçay University, İzmir,
Turkiye
| | - Kubilay Doğan KILIÇ
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir,
Turkiye
| | - Cansın ŞİRİN
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir,
Turkiye
| | - Canberk TOMRUK
- Department of Histology and Embryology, Republic of Turkiye Ministry of Health Samsun Education and Research Hospital, Samsun,
Turkiye
| | - Gürkan YİĞİTTÜRK
- Department of Histology and Embryology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla,
Turkiye
| | - Oytun ERBAŞ
- Department of Physiology, Faculty of Medicine, Demiroğlu Bilim University, İstanbul,
Turkiye
| | - Eser YILDIRIM SÖZMEN
- Department of Medical Biochemistry, Faculty of Medicine, Ege University, İzmir,
Turkiye
| | - Meral BAKA
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir,
Turkiye
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10
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Abolhassani S, Hossein-Aghdaei M, Geramizadeh B, Azarpira N, Koohpeyma F, Gholami M, Alizadeh A. Primary hepatocyte urea assessment in the sodium-alginate patterned hydrogel by electrochemical procedure containing umbilical cord conditioned media. J Biomater Appl 2023; 37:1470-1485. [PMID: 36318091 DOI: 10.1177/08853282221137093] [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: 11/07/2022]
Abstract
Limitations in liver transplantation and advances in cell therapy methods motivated us to study primary hepatocytes. The main challenge in using primary hepatocytes for liver regeneration is that they lose their functionalities. We aimed to develop a controlled-shape hydrogel and apply the conditioned-media of mesenchymal stromal cells (CM-MSCs) to improve in vitro hepatocyte functions. In this experimental study, following rat hepatocyte isolation by collagenase perfusion and collection of human umbilical cord CM-MSCs, a simple and precise system called electrodeposition was used to produce the patterned alginate hydrogel. To reduce the cytopathic effects, we used an indirect electrodeposition method. For characterizing this structure, mechanical properties, Fourier-transform infrared spectroscopy (FTIR), water uptake, in-vitro degradation, and hydrogel stability were studied. Urea synthesis as a basic function of hepatocytes was assessed in five different groups. Scanning electron microscope (SEM) was utilized to evaluate the primary hepatocyte morphology and their dispersion in the fabricated structure. We observed a significant increase in urea synthesis in the presence of CM-MSCs in patterned hydrogel alginate compared to 2D culture on day 3 (p<0.05). However, there was no significant difference in simple and patterned hydrogel on day 2. We found that the electrodeposition method is appropriate for the rapid fabricating of hydrogel structures with arbitrary patterns for 3D cell culture.
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Affiliation(s)
- Sareh Abolhassani
- School of Advanced Medical Sciences and Technologies, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Bita Geramizadeh
- Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrine and metabolism Research Center, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahnaz Gholami
- Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aliakbar Alizadeh
- School of Advanced Medical Sciences and Technologies, 48435Shiraz University of Medical Sciences, Shiraz, Iran
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11
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Gomes Gama JF, Dias EA, Aguiar Coelho RMG, Chagas AM, Aguiar Coelho Nt J, Alves LA. Development and implementation of a significantly low-cost 3D bioprinter using recycled scrap material. Front Bioeng Biotechnol 2023; 11:1108396. [PMID: 37091338 PMCID: PMC10119389 DOI: 10.3389/fbioe.2023.1108396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/15/2023] [Indexed: 04/25/2023] Open
Abstract
The field of 3D bioengineering proposes to effectively contribute to the manufacture of artificial multicellular organ/tissues and the understanding of complex cellular mechanisms. In this regard, 3D cell cultures comprise a promising bioengineering possibility for the alternative treatment of organ function loss, potentially improving patient life expectancies. Patients with end-stage disease, for example, could benefit from treatment until organ transplantation or even undergo organ function restoration. Currently, 3D bioprinters can produce tissues such as trachea cartilage or artificial skin. Most low-cost 3D bioprinters are built from fused deposition modeling 3D printer frames modified for the deposition of biologically compatible material, ranging between $13.000,00 and $300.000,00. Furthermore, the cost of consumables should also be considered as they, can range from $3,85 and $100.000,00 per gram, making biomaterials expensive, hindering bioprinting access. In this context, our report describes the first prototype of a significantly low-cost 3D bioprinter built from recycled scrap metal and off-the-shelf electronics. We demonstrate the functionalized process and methodology proof of concept and aim to test it in different biological tissue scaffolds in the future, using affordable materials and open-source methodologies, thus democratizing the state of the art of this technology.
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Affiliation(s)
- Jaciara Fernanda Gomes Gama
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Evellyn Araujo Dias
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | | | - André Maia Chagas
- Sussex Neuroscience, School of Life Sciences, University of Sussex, Brighton, United Kingdom
- TReND in Africa, Brighton, United Kingdom
- Biomedical Science Research and Training Center, Yobe State University, Damaturu, Nigeria
| | - José Aguiar Coelho Nt
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- National Institute of Industrial Property- INPI and Veiga de Almeida University, Rio de Janeiro, Brazil
| | - Luiz Anastacio Alves
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- *Correspondence: Luiz Anastacio Alves,
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12
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Shen KH, Yeh YY, Chiu TH, Wang R, Yeh YC. Dual Dynamic Covalently Crosslinked Alginate Hydrogels with Tunable Properties and Multiple Stimuli-Responsiveness. ACS Biomater Sci Eng 2022; 8:4249-4261. [PMID: 36173708 DOI: 10.1021/acsbiomaterials.2c00571] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Alginate is a biopolymer that can be crosslinked with calcium ions to fabricate cytocompatible hydrogels. However, using calcium ions to crosslink alginate provides limited properties and functions to alginate hydrogels, restricting their biomedical applications. Here, phenylboronic acid-functionalized polyethyleneimine (PBA-PEI) was developed to introduce two orthogonal dynamic covalent crosslinks in the alginate hydrogels, where PBA-PEI was used to crosslink alginate dialdehyde (ADA) through imine bonds and boronate ester bonds. The grafting degree of PBA in the PEI structure was applied to fine-tune the properties of PBA-PEI/ADA hydrogels, including the rheological property, mechanical strength, swelling behavior, and antibacterial activity. In particular, the highly sensitive boronate ester bonds in the network enabled PBA-PEI/ADA hydrogels to be responsive to several stimuli, such as glucose, fructose, and hydrogen peroxide. Taken together, PBA-PEI/ADA hydrogels with tunable properties and multiple stimuli-responsiveness have been demonstrated as smart biomaterials for advanced biomedical applications.
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Affiliation(s)
- Ke-Han Shen
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Ying-Yu Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Ting-Hsiang Chiu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Reuben Wang
- Institute of Food Safety and Health, National Taiwan University, Taipei 10055, Taiwan
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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13
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Hasturk O, Smiley JA, Arnett M, Sahoo JK, Staii C, Kaplan DL. Cytoprotection of Human Progenitor and Stem Cells through Encapsulation in Alginate Templated, Dual Crosslinked Silk and Silk-Gelatin Composite Hydrogel Microbeads. Adv Healthc Mater 2022; 11:e2200293. [PMID: 35686928 PMCID: PMC9463115 DOI: 10.1002/adhm.202200293] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/28/2022] [Indexed: 01/27/2023]
Abstract
Susceptibility of mammalian cells against harsh processing conditions limit their use in cell transplantation and tissue engineering applications. Besides modulation of the cell microenvironment, encapsulation of mammalian cells within hydrogel microbeads attract attention for cytoprotection through physical isolation of the encapsulated cells. The hydrogel formulations used for cell microencapsulation are largely dominated by ionically crosslinked alginate (Alg), which suffer from low structural stability under physiological culture conditions and poor cell-matrix interactions. Here the fabrication of Alg templated silk and silk/gelatin composite hydrogel microspheres with permanent or on-demand cleavable enzymatic crosslinks using simple and cost-effective centrifugation-based droplet processing are demonstrated. The composite microbeads display structural stability under ion exchange conditions with improved mechanical properties compared to ionically crosslinked Alg microspheres. Human mesenchymal stem and neural progenitor cells are successfully encapsulated in the composite beads and protected against environmental factors, including exposure to polycations, extracellular acidosis, apoptotic cytokines, ultraviolet (UV) irradiation, anoikis, immune recognition, and particularly mechanical stress. The microbeads preserve viability, growth, and differentiation of encapsulated stem and progenitor cells after extrusion in viscous polyethylene oxide solution through a 27-gauge fine needle, suggesting potential applications in injection-based delivery and three-dimensional bioprinting of mammalian cells with higher success rates.
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Affiliation(s)
- Onur Hasturk
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Jordan A. Smiley
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Miles Arnett
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Jugal Kishore Sahoo
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Cristian Staii
- Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USA
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
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14
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Fallahi H, Daemi H, Bagheri F, Baghaban Eslaminejad M. A supramolecular injectable hydrogel based on β-cyclodextrin-grafted alginate and pluronic-amine loaded with kartogenin for chondrogenic differentiation of mesenchymal stem cells. Biomed Mater 2022; 17. [PMID: 35995044 DOI: 10.1088/1748-605x/ac8bbd] [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: 01/24/2022] [Accepted: 08/22/2022] [Indexed: 11/11/2022]
Abstract
Owing to the similarity of hydrogels to cartilage ECM, they have been extensively utilized in the chondral lesions. Moreover, their tunable administration properties are desirable for reducing injuries in lesion sites. Generally, injectable hydrogels are mechanically weak, requiring some modifications for being used as a cell carrier in place of articular cartilage. In this study, a combination of β-cyclodextrin-grafted alginate (Alg-β-CD) and pluronic-amine (PA) with multiple physical crosslinking was used for the first time. Supramolecular interactions, including electrostatic forces, host-guest interaction, and hydrophobic interaction with increasing temperature maintain injectability of hydrogels while these interactions boost mechanical properties to the extent that shear modulus surpassed 40 kPa. Vacant β-CD cavities in conjunction with gel network was exploited for kartogenin (KGN) loading. All groups had gel time of less than one minute and gel temperature was 28 ℃. No toxic effect of hydrogels on encapsulated cells was observed. While the optimum combination of polymers provided a sustainable release for KGN, it also extended the in vitro degradation time of hydrogels from 6 days to 2 weeks. KGN facilitated encapsulated mesenchymal stem cells (MSCs) differentiation towards chondrocytes. Taken together, the synthesized hydrogel proved to be a promising candidate for being utilized in cartilage regeneration.
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Affiliation(s)
- Hooman Fallahi
- Department of Biomedical Engineering, Tarbiat Modares University, jalale al ahmad, Tehran, 0098, Iran (the Islamic Republic of)
| | - Hamed Daemi
- Cell Enginerring, Royan institute, Banihashem street, Tehran, 0098, Iran (the Islamic Republic of)
| | - Fatemeh Bagheri
- Department of Biotechnology, Tarbiat Modares University, Jallale al ahmad, Tehran, 0098, Iran (the Islamic Republic of)
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15
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Biofabrication of Sodium Alginate Hydrogel Scaffolds for Heart Valve Tissue Engineering. Int J Mol Sci 2022; 23:ijms23158567. [PMID: 35955704 PMCID: PMC9368972 DOI: 10.3390/ijms23158567] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 12/10/2022] Open
Abstract
Every year, thousands of aortic valve replacements must take place due to valve diseases. Tissue-engineered heart valves represent promising valve substitutes with remodeling, regeneration, and growth capabilities. However, the accurate reproduction of the complex three-dimensional (3D) anatomy of the aortic valve remains a challenge for current biofabrication methods. We present a novel technique for rapid fabrication of native-like tricuspid aortic valve scaffolds made of an alginate-based hydrogel. Using this technique, a sodium alginate hydrogel formulation is injected into a mold produced using a custom-made sugar glass 3D printer. The mold is then dissolved using a custom-made dissolving module, revealing the aortic valve scaffold. To assess the reproducibility of the technique, three scaffolds were thoroughly compared. CT (computed tomography) scans showed that the scaffolds respect the complex native geometry with minimal variations. The scaffolds were then tested in a cardiac bioreactor specially designed to reproduce physiological flow and pressure (aortic and ventricular) conditions. The flow and pressure profiles were similar to the physiological ones for the three valve scaffolds, with small variabilities. These early results establish the functional repeatability of this new biofabrication method and suggest its application for rapid fabrication of ready-to-use cell-seeded sodium alginate scaffolds for heart valve tissue engineering.
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16
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Estes Bright LM, Garren MRS, Ashcraft M, Kumar A, Husain H, Brisbois EJ, Handa H. Dual Action Nitric Oxide and Fluoride Ion-Releasing Hydrogels for Combating Dental Caries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21916-21930. [PMID: 35507415 DOI: 10.1021/acsami.2c02301] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Demineralization and breakdown of tooth enamel are characterized by a condition called dental caries or tooth decay, which is caused by two main factors: (1) highly acidic food intake without proper oral hygiene and (2) overactive oral bacteria generating acidic metabolic byproducts. Fluoride treatments have been shown to help rebuild the hydroxyapatite structures that make up 98% of enamel but do not tackle the bacterial overload that continues to threaten future demineralization. Herein, we have created a dual-function Pluronic F127-alginate hydrogel with nitric oxide (NO)- and fluoride-releasing capabilities for the two-pronged treatment of dental caries. Analysis of the hydrogels demonstrated porous, shear-thinning behaviors with tunable mechanical properties. Varying the weight percent of the NO donor S-nitrosoglutathione (GSNO) within the hydrogel enabled physiologically actionable NO release over 4 h, with the fabricated gels demonstrating storage stability over 21 days. This NO-releasing capability resulted in a 97.59% reduction of viable Streptococcus mutans in the planktonic state over 4 h and reduced the preformed biofilm mass by 48.8% after 24 h. Delivery of fluoride ions was confirmed by a fluoride-sensitive electrode, with release levels resulting in the significant prevention of demineralization of hydroxyapatite discs after treatment with an acidic demineralization solution. Exposure to human gingival fibroblasts and human osteoblasts showed cytocompatibility of the hydrogel, demonstrating the potential for the successful treatment of dental caries in patients.
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Affiliation(s)
- Lori M Estes Bright
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Mark R S Garren
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Morgan Ashcraft
- Pharmaceutical and Biomedical Sciences Department, College of Pharmacy, University of Georgia, Athens, Georgia 30602, United States
| | - Anil Kumar
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Huzefa Husain
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Elizabeth J Brisbois
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
- Pharmaceutical and Biomedical Sciences Department, College of Pharmacy, University of Georgia, Athens, Georgia 30602, United States
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17
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Araszkiewicz AM, Oliveira EP, Svendsen T, Drela K, Rogujski P, Malysz-Cymborska I, Fiedorowicz M, Reis RL, Oliveira JM, Walczak P, Janowski M, Lukomska B, Stanaszek L. Manganese-Labeled Alginate Hydrogels for Image-Guided Cell Transplantation. Int J Mol Sci 2022; 23:ijms23052465. [PMID: 35269609 PMCID: PMC8910205 DOI: 10.3390/ijms23052465] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/18/2022] [Accepted: 02/18/2022] [Indexed: 02/04/2023] Open
Abstract
Cell transplantation has been studied extensively as a therapeutic strategy for neurological disorders. However, to date, its effectiveness remains unsatisfactory due to low precision and efficacy of cell delivery; poor survival of transplanted cells; and inadequate monitoring of their fate in vivo. Fortunately, different bio-scaffolds have been proposed as cell carriers to improve the accuracy of cell delivery, survival, differentiation, and controlled release of embedded stem cells. The goal of our study was to establish hydrogel scaffolds suitable for stem cell delivery that also allow non-invasive magnetic resonance imaging (MRI). We focused on alginate-based hydrogels due to their natural origin, biocompatibility, resemblance to the extracellular matrix, and easy manipulation of gelation processes. We optimized the properties of alginate-based hydrogels, turning them into suitable carriers for transplanted cells. Human adipose-derived stem cells embedded in these hydrogels survived for at least 14 days in vitro. Alginate-based hydrogels were also modified successfully to allow their injectability via a needle. Finally, supplementing alginate hydrogels with Mn ions or Mn nanoparticles allowed for their visualization in vivo using manganese-enhanced MRI. We demonstrated that modified alginate-based hydrogels can support therapeutic cells as MRI-detectable matrices.
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Affiliation(s)
- Antonina M. Araszkiewicz
- NeuroRepair Department, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland; (A.M.A.); (P.R.); (B.L.)
| | - Eduarda P. Oliveira
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal; (E.P.O.); (R.L.R.); (J.M.O.)
- ICVS/3B’s—PT Government Associated Laboratory, 4710-057 Guimarães, Portugal
| | | | | | - Piotr Rogujski
- NeuroRepair Department, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland; (A.M.A.); (P.R.); (B.L.)
| | - Izabela Malysz-Cymborska
- Department of Neurosurgery, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland;
| | - Michal Fiedorowicz
- Small Animal Magnetic Resonance Imaging Laboratory, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland;
| | - Rui L. Reis
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal; (E.P.O.); (R.L.R.); (J.M.O.)
- ICVS/3B’s—PT Government Associated Laboratory, 4710-057 Guimarães, Portugal
| | - Joaquim Miguel Oliveira
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal; (E.P.O.); (R.L.R.); (J.M.O.)
- ICVS/3B’s—PT Government Associated Laboratory, 4710-057 Guimarães, Portugal
| | - Piotr Walczak
- Program for Image Guided Neurointerventions, Department of Diagnostic Radiology and Nuclear Medicine, Center for Advanced Imaging Research, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA; (P.W.); (M.J.)
| | - Miroslaw Janowski
- Program for Image Guided Neurointerventions, Department of Diagnostic Radiology and Nuclear Medicine, Center for Advanced Imaging Research, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA; (P.W.); (M.J.)
| | - Barbara Lukomska
- NeuroRepair Department, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland; (A.M.A.); (P.R.); (B.L.)
| | - Luiza Stanaszek
- NeuroRepair Department, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland; (A.M.A.); (P.R.); (B.L.)
- Correspondence: ; Tel.: +48-226-086-529
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18
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Yamaguchi S, Takeuchi T, Ito M, Kokubo T. CaO-B 2O 3-SiO 2 glass fibers for wound healing. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:15. [PMID: 35072800 PMCID: PMC8786745 DOI: 10.1007/s10856-021-06618-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 10/27/2021] [Indexed: 06/14/2023]
Abstract
It was reported by Jung and Day in 2011 that a cotton-like glass fiber pad made of borate glass 13-93B3 demonstrated a remarkable wound healing effect. It was approved for sale as a novel wound dressing in the management of acute and chronic wounds in 2016. However, the detailed mechanism of its wound healing effect has not been reported. In the present study, glass fibers of different composition in the system CaO-B2O3-SiO2 were prepared and their in vitro properties investigated to determine the role of the constituent components in wound healing. Fine glass fibers that were 0.6-2.0 μm in diameter were obtained by a melt blown method. However, these fibers were accompanied by small glass beads because of the low viscosity of the glass melts. 13-93B3 glass released an appreciable amount of borate and calcium ions into simulated body fluid (SBF). The amounts of these released ions decreased with partial replacement of the B2O3 in 13-93B3 with SiO2. The addition of large amounts of the borate and calcium ions into the culture medium decreased the viability of the L929 fibroblasts. Partial replacement of the B2O3 in 13-93B3 with SiO2 induced the formation of an apatite-like phase amenable to the adsorption of biological components on its surface in SBF. The wound healing effect of these glass fibers of different composition is worth examining in future animal experiments.
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Affiliation(s)
- Seiji Yamaguchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan.
| | - Tamaki Takeuchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Morihiro Ito
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Tadashi Kokubo
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
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19
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Hull SM, Brunel LG, Heilshorn SC. 3D Bioprinting of Cell-Laden Hydrogels for Improved Biological Functionality. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2103691. [PMID: 34672027 PMCID: PMC8988886 DOI: 10.1002/adma.202103691] [Citation(s) in RCA: 86] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 09/15/2021] [Indexed: 05/03/2023]
Abstract
The encapsulation of cells within gel-phase materials to form bioinks offers distinct advantages for next-generation 3D bioprinting. 3D bioprinting has emerged as a promising tool for patterning cells, but the technology remains limited in its ability to produce biofunctional, tissue-like constructs due to a dearth of materials suitable for bioinks. While early demonstrations commonly used viscous polymers optimized for printability, these materials often lacked cell compatibility and biological functionality. In response, advanced materials that exist in the gel phase during the entire printing process are being developed, since hydrogels are uniquely positioned to both protect cells during extrusion and provide biological signals to embedded cells as the construct matures during culture. Here, an overview of the design considerations for gel-phase materials as bioinks is presented, with a focus on their mechanical, biochemical, and dynamic gel properties. Current challenges and opportunities that arise due to the fact that bioprinted constructs are active, living hydrogels composed of both acellular and cellular components are also evaluated. Engineering hydrogels with consideration of cells as an intrinsic component of the printed bioink will enable control over the evolution of the living construct after printing to achieve greater biofunctionality.
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Affiliation(s)
- Sarah M Hull
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Lucia G Brunel
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
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20
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Gao Q, Kim BS, Gao G. Advanced Strategies for 3D Bioprinting of Tissue and Organ Analogs Using Alginate Hydrogel Bioinks. Mar Drugs 2021; 19:708. [PMID: 34940707 PMCID: PMC8708555 DOI: 10.3390/md19120708] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/12/2021] [Accepted: 12/12/2021] [Indexed: 12/15/2022] Open
Abstract
Alginate is a natural polysaccharide that typically originates from various species of algae. Due to its low cost, good biocompatibility, and rapid ionic gelation, the alginate hydrogel has become a good option of bioink source for 3D bioprinting. However, the lack of cell adhesive moieties, erratic biodegradability, and poor printability are the critical limitations of alginate hydrogel bioink. This review discusses the pivotal properties of alginate hydrogel as a bioink for 3D bioprinting technologies. Afterward, a variety of advanced material formulations and biofabrication strategies that have recently been developed to overcome the drawbacks of alginate hydrogel bioink will be focused on. In addition, the applications of these advanced solutions for 3D bioprinting of tissue/organ mimicries such as regenerative implants and in vitro tissue models using alginate-based bioink will be systematically summarized.
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Affiliation(s)
- Qiqi Gao
- Institute of Engineering Medicine, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing 100081, China;
| | - Byoung-Soo Kim
- School of Biomedical Convergence Engineering, Pusan National University, Yangsan 626841, Kyungnam, Korea;
| | - Ge Gao
- Institute of Engineering Medicine, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing 100081, China;
- Department of Medical Technology, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing 100081, China
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21
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Sood A, Gupta A, Agrawal G. Recent advances in polysaccharides based biomaterials for drug delivery and tissue engineering applications. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100067] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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22
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Functional role of crosslinking in alginate scaffold for drug delivery and tissue engineering: A review. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110807] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Hii YS, Law MC, Chan YS. Experimental and numerical study of the impinging aerosols method for the micro-encapsulation of phosphate solubilising microorganisms (PSMs). Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Liu C, Li M, Dong ZX, Jiang D, Li X, Lin S, Chen D, Zou X, Zhang XD, Luker GD. Heterogeneous microenvironmental stiffness regulates pro-metastatic functions of breast cancer cells. Acta Biomater 2021; 131:326-340. [PMID: 34246802 PMCID: PMC8784164 DOI: 10.1016/j.actbio.2021.07.009] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/24/2021] [Accepted: 07/02/2021] [Indexed: 12/22/2022]
Abstract
Besides molecular and phenotypic variations observed in cancer cells, intratumoral heterogeneity also occurs in the tumor microenvironment. Correlative stiffness maps of different intratumor locations in breast tumor biopsies show that stiffness increases from core to periphery. However, how different local ECM stiffness regulates key functions of cancer cells in tumor progression remains unclear. Although increased tissue stiffness is an established driver of breast cancer progression, conclusions from 2D cultures do not correspond with newer data from cancer cells in 3D environments. Many past studies of breast cancer in 3D culture fail to recapitulate the stiffness of a real breast tumor or the various local stiffnesses present in a tumor microenvironment. In this study, we developed a series of collagen/alginate hybrid hydrogels with adjustable stiffness to match the core, middle, and peripheral zones of a breast tumor. We used this hydrogel system to investigate effects of different local stiffness on morphology, proliferation, and migration of breast cancer cells. RNA sequencing of cells in hydrogels with different stiffness revealed changes in multiple cellular processes underlying cancer progression, including angiogenesis and metabolism. We discovered that tumor cells in a soft environment enriched YAP1 and AP1 signaling related genes, whereas tumor cells in a stiff environment became more pro-angiogenic by upregulating fibronectin 1 (FN1) and matrix metalloproteinase 9 (MMP9) expression. This systematic study defines how the range of environmental stiffnesses present in a breast tumor regulates cancer cells, providing new insights into tumorigenesis and disease progression at the tumor-stroma interface. STATEMENT OF SIGNIFICANCE: Applied a well-defined hybrid hydrogel system to mimic the tumor microenvironment with heterogeneous local stiffness. Breast cancer cells tended to proliferate in soft core environment while migrate in stiff peripheral environment. Breast cancer cells shift from glycolysis to OXPHOS and fatty acid metabolism responding to stiff matrix microenvironment. The transcriptomic profile of breast cancer cells altered due to microenvironmental stiffness changes.
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Affiliation(s)
- Chun Liu
- Orthopedic Research Institute/Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Translational Medicine, Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China.
| | - Miao Li
- The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China; Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
| | - Zhao-Xia Dong
- Department of Pharmacology, Molecular Cancer Research Center, School of Medicine, Sun Yat-sen University, Shenzhen, China
| | - Dong Jiang
- Orthopedic Research Institute/Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Translational Medicine, Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Xiaojing Li
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Shuibin Lin
- Center for Translational Medicine, Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Demeng Chen
- Center for Translational Medicine, Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xuenong Zou
- Orthopedic Research Institute/Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Xing-Ding Zhang
- Department of Pharmacology, Molecular Cancer Research Center, School of Medicine, Sun Yat-sen University, Shenzhen, China.
| | - Gary D Luker
- Center for Molecular Imaging, Department of Radiology, University of Michigan Medical School, Ann Arbor, MI 48109, United States; Department of Biomedical Engineering, University of Michigan Medical School, Ann Arbor, MI 48109, United States; Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, United States.
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25
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Moeinzadeh S, Park Y, Lin S, Yang YP. In-situ stable injectable collagen-based hydrogels for cell and growth factor delivery. MATERIALIA 2021; 15:100954. [PMID: 33367226 PMCID: PMC7751945 DOI: 10.1016/j.mtla.2020.100954] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Here we report development of in-situ stable injectable hydrogels for delivery of cells and growth factors based on two precursors, alginate, and collagen/calcium sulfate (CaSO4). The alg/col hydrogels were shear-thinning, injectable through commercially available needles and stable right after injection. Rheological measurements revealed that pre-crosslinked alg/col hydrogels fully crosslinked at 37°C and that the storage modulus of alg/col hydrogels increased with increasing the collagen content or the concentration of CaSO4. The viscoelastic characteristics and injectability of the alg/col hydrogels were not significantly impacted by the storage of precursor solutions for 28 days. An osteoinductive bone morphogenic protein-2 (BMP-2) loaded into alg/col hydrogels was released in 14 days. Human mesenchymal stem cells (hMSCs) encapsulated in alg/col hydrogels had over 90% viability over 7 days after injection. The DNA content of hMSC-laden alg/col hydrogels increased by 6-37 folds for 28 days, depending on the initial cell density. In addition, hMSCs encapsulated in alg/col hydrogels and incubated in osteogenic medium were osteogenically differentiated and formed a mineralized matrix. Finally, a BMP-2 loaded alg/col hydrogel was used to heal a critical size calvarial bone defect in rats after 8 weeks of injection. The alg/col hydrogel holds great promise in tissue engineering and bioprinting applications.
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Affiliation(s)
- Seyedsina Moeinzadeh
- Department of Orthopedic Surgery, Stanford University, 300 Pasteur Drive, Stanford, CA 94305, USA
| | - Youngbum Park
- Department of Orthopedic Surgery, Stanford University, 300 Pasteur Drive, Stanford, CA 94305, USA
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 120-752, Korea
| | - Sien Lin
- Department of Orthopedic Surgery, Stanford University, 300 Pasteur Drive, Stanford, CA 94305, USA
| | - Yunzhi Peter Yang
- Department of Orthopedic Surgery, Stanford University, 300 Pasteur Drive, Stanford, CA 94305, USA
- Department of Materials Science and Engineering, Stanford University, 496 Lomita Mall, Stanford, CA94305, USA
- Department of Bioengineering, Stanford University, 443 Via Ortega, Stanford, CA94305, USA
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26
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Fu Z, Naghieh S, Xu C, Wang C, Sun W, Chen DX. Printability in extrusion bioprinting. Biofabrication 2021; 13. [PMID: 33601340 DOI: 10.1088/1758-5090/abe7ab] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 02/18/2021] [Indexed: 12/12/2022]
Abstract
Extrusion bioprinting has been widely used to extrude continuous filaments of bioink (or the mixture of biomaterial and living cells), layer-by-layer, to build three-dimensional (3D) constructs for biomedical applications. In extrusion bioprinting, printability is an important parameter used to measure the difference between the designed construct and the one actually printed. This difference could be caused by the extrudability of printed bioink and/or the structural formability and stability of printed constructs. Although studies have reported in characterizing printability based on the bioink properties and printing process, the concept of printability is often confusingly and, sometimes, conflictingly used in the literature. The objective of this perspective is to define the printability for extrusion bioprinting in terms of extrudability, filament fidelity, and structural integrity, as well as to review the effect of bioink properties, bioprinting process, and construct design on the printability. Challenges related to the printability of extrusion bioprinting are also discussed, along with recommendations for improvements.
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Affiliation(s)
- Zhouquan Fu
- Mechanical Engineering and Mechanics, Drexel University, 3141 chestnut street, Philadelphia, Philadelphia, Pennsylvania, 19104-2816, UNITED STATES
| | - Saman Naghieh
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, S7N 5A9, Canada, Saskatoon, Saskatchewan, S7N 5A9, CANADA
| | - Cancan Xu
- SunP Biotech LLC, 5 Allison Dr, Cherry Hill, New Jersey, 08003, UNITED STATES
| | - Chengjin Wang
- Tsinghua University, 30 Shuangqing Rd, Haidian District, Beijing, 100084, CHINA
| | - Wei Sun
- Mech Engineering, Drexel University, 3141 chestnut street, Philadelphia, Pennsylvania, 19104, UNITED STATES
| | - Daniel Xiongbiao Chen
- Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Saskatoon, Saskatchewan, S7N 5A9, CANADA
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27
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Trujillo S, Seow M, Lueckgen A, Salmeron-Sanchez M, Cipitria A. Dynamic Mechanical Control of Alginate-Fibronectin Hydrogels with Dual Crosslinking: Covalent and Ionic. Polymers (Basel) 2021; 13:polym13030433. [PMID: 33573020 PMCID: PMC7866402 DOI: 10.3390/polym13030433] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/21/2021] [Accepted: 01/23/2021] [Indexed: 01/14/2023] Open
Abstract
Alginate is a polysaccharide used extensively in biomedical applications due to its biocompatibility and suitability for hydrogel fabrication using mild reaction chemistries. Though alginate has commonly been crosslinked using divalent cations, covalent crosslinking chemistries have also been developed. Hydrogels with tuneable mechanical properties are required for many biomedical applications to mimic the stiffness of different tissues. Here, we present a strategy to engineer alginate hydrogels with tuneable mechanical properties by covalent crosslinking of a norbornene-modified alginate using ultraviolet (UV)-initiated thiol-ene chemistry. We also demonstrate that the system can be functionalised with cues such as full-length fibronectin and protease-degradable sequences. Finally, we take advantage of alginate's ability to be crosslinked covalently and ionically to design dual crosslinked constructs enabling dynamic control of mechanical properties, with gels that undergo cycles of stiffening-softening by adding and quenching calcium cations. Overall, we present a versatile hydrogel with tuneable and dynamic mechanical properties, and incorporate cell-interactive features such as cell-mediated protease-induced degradability and full-length proteins, which may find applications in a variety of biomedical contexts.
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Affiliation(s)
- Sara Trujillo
- Centre for the Cellular Microenvironment, University of Glasgow, 72-76 Oakfield Avenue, Glasgow G12 8LT, UK; (S.T.); (M.S.)
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Melanie Seow
- Centre for the Cellular Microenvironment, University of Glasgow, 72-76 Oakfield Avenue, Glasgow G12 8LT, UK; (S.T.); (M.S.)
- Julius Wolff Institute & Centre for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, 13353 Berlin, Germany;
| | - Aline Lueckgen
- Julius Wolff Institute & Centre for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, 13353 Berlin, Germany;
| | - Manuel Salmeron-Sanchez
- Centre for the Cellular Microenvironment, University of Glasgow, 72-76 Oakfield Avenue, Glasgow G12 8LT, UK; (S.T.); (M.S.)
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain
- Correspondence: (M.S.-S.); (A.C.)
| | - Amaia Cipitria
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, 14476 Potsdam, Germany
- Correspondence: (M.S.-S.); (A.C.)
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28
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Chean SX, Hoh PY, How YH, Nyam KL, Pui LP. Microencapsulation of Lactiplantibacillus plantarum with inulin and evaluation of survival in simulated gastrointestinal conditions and roselle juice. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2021. [DOI: 10.1590/1981-6723.22420] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract This study aimed to evaluate the survivability of Lactiplantibacillus plantarum 299v encapsulated in chitosan-coated calcium alginate beads with inulin as prebiotic in simulated gastrointestinal conditions and roselle juice. The concentration of calcium chloride and inulin for L. plantarum 299v microencapsulation was optimised and the survivability of free and microencapsulated L. plantarum was assessed under simulated gastrointestinal conditions. Storage stability of the optimised encapsulated L. plantarum 299v-inulin was determined throughout four (4) weeks of storage in roselle juice at 4 °C and 25 °C. The optimized formula for L. plantarum 299v was 2.0% (w/v) of calcium chloride and 3.0% (w/v) of inulin. Optimized calcium alginate-chitosan L. plantarum 299v microbeads with inulin did not affect (p > 0.05) the bead diameter, with a mean diameter of 685.27 μm, and microencapsulation efficiency of 95%. Encapsulated L. plantarum 299v with inulin showed higher survivability (>107 CFU/mL) than free cells and encapsulated L. plantarum 299v without inulin under simulated gastrointestinal conditions and after four (4) weeks of storage in roselle juice at 4 °C. The results indicate that co-extrusion encapsulation and addition of inulin had improved the viability of L. plantarum 299v in roselle juice by protecting probiotic against unfavourable gastrointestinal conditions and prolonged storage.
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29
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Amirthalingam S, Lee SS, Pandian M, Ramu J, Iyer S, Hwang NS, Jayakumar R. Combinatorial effect of nano whitlockite/nano bioglass with FGF-18 in an injectable hydrogel for craniofacial bone regeneration. Biomater Sci 2021; 9:2439-2453. [DOI: 10.1039/d0bm01496f] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Comparing the bone regeneration potential of nano whitlockite or nano bioglass in combination with FGF-18, loaded in an injectable, shear-thinning chitin/PLGA hydrogel for craniofacial bone regeneration.
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Affiliation(s)
| | - Seunghun S. Lee
- School of Chemical and Biological Engineering
- the Institute of Chemical Processes
- Seoul National University
- Seoul
- Republic of Korea
| | - Mahalakshmi Pandian
- Centre for Nanosciences and Molecular Medicine
- Amrita Vishwa Vidyapeetham
- Kochi-682041
- India
| | - Janarthanan Ramu
- Department of Plastic and Reconstructive Surgery
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham
- Kochi 682041
- India
| | - Subramania Iyer
- Department of Plastic and Reconstructive Surgery
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham
- Kochi 682041
- India
| | - Nathaniel S. Hwang
- School of Chemical and Biological Engineering
- the Institute of Chemical Processes
- Seoul National University
- Seoul
- Republic of Korea
| | - Rangasamy Jayakumar
- Centre for Nanosciences and Molecular Medicine
- Amrita Vishwa Vidyapeetham
- Kochi-682041
- India
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30
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Bakhtiiari A, Khorshidi R, Yazdian F, Rashedi H, Omidi M. A bioprinted composite hydrogel with controlled shear stress on cells. Proc Inst Mech Eng H 2020; 235:314-322. [PMID: 33334243 DOI: 10.1177/0954411920976682] [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: 11/15/2022]
Abstract
In recent decades, three dimensional (3D) bio-printing technology has found widespread use in tissue engineering applications. The aim of this study is to scrutinize different parameters of the bioprinter - with the help of simulation software - to print a hydrogel so much so that avoid high amounts of shear stress which is detrimental for cell viability and cell proliferation. Rheology analysis was done on several hydrogels composed of different percentages of components: alginate, collagen, and gelatin. The results have led to the combination of percentages collagen:alginate:gelatin (1:4:8)% as the best condition which makes sol-gel transition at room temperature possible. The results have shown the highest diffusion rate and cell viability for the cross-linked sample with 1.5% CaCl2 for the duration of 1 h. Finally, we have succeeded in printing the hydrogel that is mechanically strong with suitable degradation rate and cell viability.
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Affiliation(s)
- Amirhossein Bakhtiiari
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Rezvan Khorshidi
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran
| | - Hamid Rashedi
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Meisam Omidi
- Protein Research Center, Shahid Beheshti University G.C., Tehran, Iran
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31
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Silva KMMN, Costa BL, Dourado LF, Silva RO, Silva‐Cunha A, Santos AK, Resende RR, Faria PE, Campos Rubio JC, Goulart GAC, Silva‐Caldeira PP. Four modified sodium alginate/carboxymethylcellulose blends for prednisone delivery. J Appl Polym Sci 2020. [DOI: 10.1002/app.50383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Bruna Lopes Costa
- Faculty of Pharmacy Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Lays Fernanda Dourado
- Faculty of Pharmacy Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | | | - Armando Silva‐Cunha
- Faculty of Pharmacy Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Anderson Kenedy Santos
- Institute of Biological Science Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Rodrigo Ribeiro Resende
- Institute of Biological Science Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Paulo Eustáquio Faria
- Department of Production Engineering Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Juan Carlos Campos Rubio
- Department of Production Engineering Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
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32
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Dutta SD, Hexiu J, Patel DK, Ganguly K, Lim KT. 3D-printed bioactive and biodegradable hydrogel scaffolds of alginate/gelatin/cellulose nanocrystals for tissue engineering. Int J Biol Macromol 2020; 167:644-658. [PMID: 33285198 DOI: 10.1016/j.ijbiomac.2020.12.011] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/17/2020] [Accepted: 12/02/2020] [Indexed: 02/06/2023]
Abstract
The 3D-printed hybrid biodegradable hydrogels composed of alginate, gelatin, and cellulose nanocrystals (CNCs) were prepared to provide a favorable environment for cell proliferation, adhesion, nutrients exchange, and matrix mineralization for bone tissue engineering (BTE) applications. The hybrid scaffolds exhibited enhanced mechanical strength compared to the pure polymer scaffolds. The biocompatibility, differentiation potential, and bone regeneration potential of the printed scaffolds were evaluated by DAPI staining, live-dead assay, alizarin Red-S (ARS) staining, real-time PCR (qRT-PCR), and μCT analysis, respectively. Enhanced cell proliferation has occurred 1% CNC/Alg/Gel scaffolds compared to the control. The cells were adequately adhered to the scaffold and exhibited the flattened structure. Improved mineralization was observed in the 1% CNC/Alg/Gel scaffolds' presence than the control, showing their mineralization efficiency. A significant enhancement in the expression of osteogenic-specific gene markers (Runx2, ALP, BMP-2, OCN, OPN, BSP, and COL1) has occurred with 1% CNC/Alg/Gel than the control, indicating their osteogenic potential. Furthermore, enhanced bone formation was observed in the scaffolds treated groups than the control in the calvaria critical-sized defects (CCD-1) model, suggesting their improved bone regeneration potential. Therefore, the fabricated scaffolds have the potential to explore as a biomaterial for tissue engineering.
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Affiliation(s)
- Sayan Deb Dutta
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jin Hexiu
- Department of Plastic and Traumatic Surgery, Capital Medical University, Beijing 100069, China
| | - Dinesh K Patel
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Keya Ganguly
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea.
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33
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Ning L, Gil CJ, Hwang B, Theus AS, Perez L, Tomov ML, Bauser-Heaton H, Serpooshan V. Biomechanical factors in three-dimensional tissue bioprinting. APPLIED PHYSICS REVIEWS 2020; 7:041319. [PMID: 33425087 PMCID: PMC7780402 DOI: 10.1063/5.0023206] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/23/2020] [Indexed: 05/07/2023]
Abstract
3D bioprinting techniques have shown great promise in various fields of tissue engineering and regenerative medicine. Yet, creating a tissue construct that faithfully represents the tightly regulated composition, microenvironment, and function of native tissues is still challenging. Among various factors, biomechanics of bioprinting processes play fundamental roles in determining the ultimate outcome of manufactured constructs. This review provides a comprehensive and detailed overview on various biomechanical factors involved in tissue bioprinting, including those involved in pre, during, and post printing procedures. In preprinting processes, factors including viscosity, osmotic pressure, and injectability are reviewed and their influence on cell behavior during the bioink preparation is discussed, providing a basic guidance for the selection and optimization of bioinks. In during bioprinting processes, we review the key characteristics that determine the success of tissue manufacturing, including the rheological properties and surface tension of the bioink, printing flow rate control, process-induced mechanical forces, and the in situ cross-linking mechanisms. Advanced bioprinting techniques, including embedded and multi-material printing, are explored. For post printing steps, general techniques and equipment that are used for characterizing the biomechanical properties of printed tissue constructs are reviewed. Furthermore, the biomechanical interactions between printed constructs and various tissue/cell types are elaborated for both in vitro and in vivo applications. The review is concluded with an outlook regarding the significance of biomechanical processes in tissue bioprinting, presenting future directions to address some of the key challenges faced by the bioprinting community.
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Affiliation(s)
- Liqun Ning
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, Georgia 30322, USA
| | - Carmen J. Gil
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, Georgia 30322, USA
| | - Boeun Hwang
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, Georgia 30322, USA
| | - Andrea S. Theus
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, Georgia 30322, USA
| | - Lilanni Perez
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, Georgia 30322, USA
| | - Martin L. Tomov
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, Georgia 30322, USA
| | - Holly Bauser-Heaton
- Authors to whom correspondence should be addressed:. Telephone: 404-712-9717. Fax: 404-727-9873
| | - Vahid Serpooshan
- Authors to whom correspondence should be addressed:. Telephone: 404-712-9717. Fax: 404-727-9873
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34
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Vitale C, Fedi A, Marrella A, Varani G, Fato M, Scaglione S. 3D Perfusable Hydrogel Recapitulating the Cancer Dynamic Environment to in Vitro Investigate Metastatic Colonization. Polymers (Basel) 2020; 12:E2467. [PMID: 33114344 PMCID: PMC7690854 DOI: 10.3390/polym12112467] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 12/13/2022] Open
Abstract
Metastasis is a dynamic process involving the dissemination of circulating tumor cells (CTCs) through blood flow to distant tissues within the body. Nevertheless, the development of an in vitro platform that dissects the crucial steps of metastatic cascade still remains a challenge. We here developed an in vitro model of extravasation composed of (i) a single channel-based 3D cell laden hydrogel representative of the metastatic site, (ii) a circulation system recapitulating the bloodstream where CTCs can flow. Two polymers (i.e., fibrin and alginate) were tested and compared in terms of mechanical and biochemical proprieties. Computational fluid-dynamic (CFD) simulations were also performed to predict the fluid dynamics within the polymeric matrix and, consequently, the optimal culture conditions. Next, once the platform was validated through perfusion tests by fluidically connecting the hydrogels with the external circuit, highly metastatic breast cancer cells (MDA-MB-231) were injected and exposed to physiological wall shear stress (WSS) conditions (5 Dyn/cm2) to assess their migration toward the hydrogel. Results indicated that CTCs arrested and colonized the polymeric matrix, showing that this platform can be an effective fluidic system to model the first steps occurring during the metastatic cascade as well as a potential tool to in vitro elucidate the contribution of hemodynamics on cancer dissemination to a secondary site.
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Affiliation(s)
- Chiara Vitale
- National Research Council of Italy, Institute of Electronic, Computer and Telecommunications (IEIIT) Institute, 16149 Genoa, Italy; (C.V.); (A.F.); (G.V.); (M.F.); (S.S.)
| | - Arianna Fedi
- National Research Council of Italy, Institute of Electronic, Computer and Telecommunications (IEIIT) Institute, 16149 Genoa, Italy; (C.V.); (A.F.); (G.V.); (M.F.); (S.S.)
- Department of Computer Science, Bioengineering, Robotics and Systems Engineering, University of Genoa, 16126 Genoa, Italy
| | - Alessandra Marrella
- National Research Council of Italy, Institute of Electronic, Computer and Telecommunications (IEIIT) Institute, 16149 Genoa, Italy; (C.V.); (A.F.); (G.V.); (M.F.); (S.S.)
| | - Gabriele Varani
- National Research Council of Italy, Institute of Electronic, Computer and Telecommunications (IEIIT) Institute, 16149 Genoa, Italy; (C.V.); (A.F.); (G.V.); (M.F.); (S.S.)
| | - Marco Fato
- National Research Council of Italy, Institute of Electronic, Computer and Telecommunications (IEIIT) Institute, 16149 Genoa, Italy; (C.V.); (A.F.); (G.V.); (M.F.); (S.S.)
- Department of Computer Science, Bioengineering, Robotics and Systems Engineering, University of Genoa, 16126 Genoa, Italy
| | - Silvia Scaglione
- National Research Council of Italy, Institute of Electronic, Computer and Telecommunications (IEIIT) Institute, 16149 Genoa, Italy; (C.V.); (A.F.); (G.V.); (M.F.); (S.S.)
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Hui Chong LS, Zhang J, Bhat KS, Yong D, Song J. Bioinspired cell-in-shell systems in biomedical engineering and beyond: Comparative overview and prospects. Biomaterials 2020; 266:120473. [PMID: 33120202 DOI: 10.1016/j.biomaterials.2020.120473] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 10/07/2020] [Accepted: 10/18/2020] [Indexed: 12/28/2022]
Abstract
With the development in tissue engineering, cell transplantation, and genetic technologies, living cells have become an important therapeutic tool in clinical medical care. For various cell-based technologies including cell therapy and cell-based sensors in addition to fundamental studies on single-cell biology, the cytoprotection of individual living cells is a prerequisite to extend cell storage life or deliver cells from one place to another, resisting various external stresses. Nature has evolved a biological defense mechanism to preserve their species under unfavorable conditions by forming a hard and protective armor. Particularly, plant seeds covered with seed coat turn into a dormant state against stressful environments, due to mechanical and water/gas constraints imposed by hard seed coat. However, when the environmental conditions become hospitable to seeds, seed coat is ruptured, initiating seed germination. This seed dormancy and germination mechanism has inspired various approaches that artificially induce cell sporulation via chemically encapsulating individual living cells within a thin but tough shell forming a 3D "cell-in-shell" structure. Herein, the recent advance of cell encapsulation strategies along with the potential advantages of the 3D "cell-in-shell" system is reviewed. Diverse coating materials including polymeric shells and hybrid shells on different types of cells ranging from microbes to mammalian cells will be discussed in terms of enhanced cytoprotective ability, control of division, chemical functionalization, and on-demand shell degradation. Finally, current and potential applications of "cell-in-shell" systems for cell-based technologies with remaining challenges will be explored.
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Affiliation(s)
- Lydia Shi Hui Chong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore; Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research, 2 Fusionopolis Way, 168384, Singapore
| | - Jingyi Zhang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore; Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research, 2 Fusionopolis Way, 168384, Singapore
| | - Kiesar Sideeq Bhat
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore
| | - Derrick Yong
- Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research, 2 Fusionopolis Way, 168384, Singapore
| | - Juha Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore.
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Basu S, Johl R, Pacelli S, Gehrke S, Paul A. Fabricating Tough Interpenetrating Network Cryogels with DNA as the Primary Network for Biomedical Applications. ACS Macro Lett 2020; 9:1230-1236. [PMID: 35638638 DOI: 10.1021/acsmacrolett.0c00448] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This work investigates a sequential strategy to develop DNA-based hydrogel scaffolds with interpenetrating polymeric network. The scaffolds were formed via a two-step procedure. First, a covalently cross-linked DNA-based cryogel was formed by the chemical reaction between DNA strands and a bifunctional cross-linker, polyethylene glycol diepoxide at subzero temperatures. In the second step, alginate chains were absorbed into the preformed macroporous DNA cryogel network, followed by ionic cross-linking with divalent calcium ions. The individual and synergistic effects of covalent and ionic cross-linkings on mechanical and physical properties of the IPN cryogel were tested. The IPN cryogels were able to sustain large deformations higher than 95% of strain under compressive forces without exhibiting any failure. Addition of a physically cross-linked alginate network to the covalently linked DNA cryogel significantly enhanced its toughness and energy dissipation compared to the covalent network alone. The formulated hydrogels also exhibited excellent biocompatibility with human stem cells. Overall, this DNA-based IPN cryogel has the potential to be used as a biomaterial scaffold for a diverse range of tissue engineering applications.
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Affiliation(s)
- Sayantani Basu
- Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Rea Johl
- Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Settimio Pacelli
- Department of Biomedical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Stevin Gehrke
- Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Arghya Paul
- Department of Chemical and Biochemical Engineering, Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B9, Canada
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New gellan gum-graft-poly(d,l-lactide-co-glycolide) copolymers as promising bioinks: Synthesis and characterization. Int J Biol Macromol 2020; 162:1653-1667. [PMID: 32777413 DOI: 10.1016/j.ijbiomac.2020.07.254] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/14/2020] [Accepted: 07/20/2020] [Indexed: 01/07/2023]
Abstract
This research focused on the aim of tackling the urgent demand of printable biomaterials, hence we synthetized and characterized three gellan gum-graft-poly(d,l-lactide-co-glycolide) copolymers (GGm-PLGA a, b and c) which differed in the graft substitution degree. We investigated the effect of the polyester chain grafted onto hydrophilic backbone of gellan gum in terms of physicochemical properties and the ability of the system to print 3D cell laden constructs. In particular, we evaluated thermo-rheological, ionotropic crosslinking, shear thinning, swelling and stability properties of these copolymers and their derived biomaterials and findings related to the degree of functionalization. Moreover, the optimization of the 3D process parameters and the effect of different water/DPBS mixtures was investigated, demonstrating the feasibility of the system to print 3D constructs. Finally, biological tests revealed that fibroblasts and chondrocytes remained viable after printing and over a culture period of seven days into scaffolds.
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Dual cross-linked honey coupled 3D antimicrobial alginate hydrogels for cutaneous wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111218. [PMID: 32806236 DOI: 10.1016/j.msec.2020.111218] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 06/05/2020] [Accepted: 06/18/2020] [Indexed: 12/20/2022]
Abstract
We report potentiation of healing efficacy of alginate by value addition at its structural level. Dual crosslinked (ionically and covalently) sodium alginate hydrogel coupled with honey (HSAG) brings about an intermediate stiffness in the fabric, confers consistent swelling property and limits erratic degradation of the polymer which ultimately provides conducive milieu to cellular growth and proliferation. In this work honey concentrations in HSAGs are varied from 2% to 10%. FTIR, XRD and nanoindentation studies on the HSAGs exhibited physicochemical integrity. In vitro degradation study provided the crucial finding on 4% HSAG having controlled degradation rate up to 12 days with a weight loss of 87.36 ± 1.14%. This particular substrate also has an ordered crystalline surface morphology with decent cellular viability (HaCaT and 3T3) and antimicrobial potential against Methicillin Resistant Staphylococcus aureus (MRSA) and Escherichia coli. The in vivo wound contraction kinetics on murine models (4% HSAG treated wound contraction: 94.56 ± 0.1%) has been monitored by both invasive (histopathology) and noninvasive (Swept Source Optical Coherence Tomography) imaging and upon corroborating them it evidenced that 4% HSAG treated wound closure achieved epithelial thickness resembling to that of unwounded skin. Thus, the work highlights structurally modified alginate hydrogel embedded with honey as a potential antimicrobial healing agent.
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Semba JA, Mieloch AA, Rybka JD. Introduction to the state-of-the-art 3D bioprinting methods, design, and applications in orthopedics. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bprint.2019.e00070] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Morshedloo F, Khoshfetrat AB, Kazemi D, Ahmadian M. Gelatin improves peroxidase-mediated alginate hydrogel characteristics as a potential injectable hydrogel for soft tissue engineering applications. J Biomed Mater Res B Appl Biomater 2020; 108:2950-2960. [PMID: 32351038 DOI: 10.1002/jbm.b.34625] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/27/2020] [Accepted: 04/18/2020] [Indexed: 12/14/2022]
Abstract
To develop an efficient injectable alginate-based hydrogel for soft tissue engineering applications, phenol moiety (Ph) was introduced into alginate (Alg-Ph), and the influence of gelatin as cell adhesive molecule was evaluated on the peroxidase-mediated alginate hydrogel properties and cultured chondrocytic cell behavior. Addition of gelatin (1.5% w/v) to Alg-Ph (1.5% w/v) hydrogels (Alg-Ph/gelatin) regulated characteristics of the enzymatically gellable alginate hydrogel with increasing gelation time to 5.1 min (76%). Swelling ratio and degradation rates of the Alg-Ph/gelatin hydrogel also increased 60 and 100%, respectively, while the mechanical strength value was 35% less than the Alg-Ph hydrogel. Scanning electron microscopy images showed that the addition of gelatin could also increase uniformity of pore sizes inside the Alg-Ph/gelatin hydrogels. The chondrocyte cells maintained their original phenotype and revealed statistically more metabolic activities in the Alg-Ph/gelatin hydrogel. Hydrogels subscutaneously implanted in rats could also be identified readily without complete absorption and signs of toxicity or any untoward reactions after 1 month. Viable chondrocyte cells inside globular aggregates were seen as red colored areas in the cell-laden hydrogels. The study demonstrates that enzymatically gellable alginate/gelatin hydrogel has fair potential as a natural-based injectable hydrogel for soft tissue engineering applications.
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Affiliation(s)
- Fatemeh Morshedloo
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran.,Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz, Iran
| | - Ali Baradar Khoshfetrat
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran.,Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz, Iran
| | - Davoud Kazemi
- Department of Veterinary Clinical Sciences, Islamic Azad University, Tabriz Branch, Tabriz, Iran
| | - Mehri Ahmadian
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran.,Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz, Iran
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Zhang W, Xia Y, Ling Y, Yang W, Dong ZX, Wang DA, Fan C. A Transcriptome Sequencing Study on Genome-Wide Gene Expression Differences of 3D Cultured Chondrocytes in Hydrogel Scaffolds with Different Gel Density. Macromol Biosci 2020; 20:e2000028. [PMID: 32187455 DOI: 10.1002/mabi.202000028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/18/2020] [Accepted: 03/03/2020] [Indexed: 12/21/2022]
Abstract
Hydrogel is considered as a promising cell delivery vehicle in cartilage tissue engineering, whose tunable microenvironments may influence the function and fate of encapsulated chondrocytes. Here, the transcriptomes of chondrocytes that are encapsulated and cultured in hydrogel constructs respectively made of 0.8% and 4% alginate solution are investigated. Differences in chondrocyte transcriptome are detected via RNA-sequencing from these two cultural conditions. The differentially expressed genes (DEGs) are reflected in extracellular matrix (ECM) secretion, cell cycle, proliferation, cartilage development, and so on. Significantly, the expression of DEGs associated with cartilage ECM and cell proliferation are upregulated in 0.8% constructs; whilst the expressions of DEGs involved in cell cycle and matrix degradation are upregulated in 4% constructs. Moreover, interestingly, the expressions of chondrocyte hypertrophy markers are upregulated in 0.8% constructs; while 4% constructs seemingly favor the long-term maintenance of chondrocyte phenotype. Taken together, this study confirms on transcriptomic level that gel density affects gene expression and phenotype of the encapsulated chondrocytes; therefore, it may provide guidance for future design and fabrication of cartilage tissue engineering scaffolds.
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Affiliation(s)
- Weiyuan Zhang
- Department of Human Anatomy, Histology and Embryology, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yujun Xia
- Department of Human Anatomy, Histology and Embryology, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yang Ling
- Department of Human Anatomy, Histology and Embryology, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Wei Yang
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, P. R. China
| | - Zuo-Xiang Dong
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, 266021, P. R. China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Changjiang Fan
- Department of Human Anatomy, Histology and Embryology, College of Medicine, Qingdao University, Qingdao, 266021, China.,Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, P. R. China
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Zhang J, Ke J, Zhu Y, Song J, Yang J, Wen C, Zhang L. Influence of divalent cations on the biofouling behaviors of alginate hydrogels. ACTA ACUST UNITED AC 2019; 15:015003. [PMID: 31530756 DOI: 10.1088/1748-605x/ab4542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Alginate is one of the most favorable materials in many biomedical applications. The mechanical properties of alginate hydrogels can be easily tailored by adding different concentrations of divalent cations. In this work, we demonstrate that the method can also notably influence the biofouling behaviors of alginate hydrogels. A series of alginate hydrogels was prepared by tuning the concentrations of two types of divalent cation (Ca2+ or Ba2+). It was found that the biofouling behaviors of the hydrogels exhibited a 'U' curve tendency with the cation concentrations. Interestingly, we found that in optimal conditions ([Ca2+] = 0.9 mM or [Ba2+] = 0.54 mM), the resultant Ca0.9- and Ba0.54-alginate hydrogels were able to achieve negligible adhesion of the proteins and bacteria. Moreover, these two formulations were also able to prevent inflammatory responses at least 4 weeks after subcutaneous implantation in a mouse model. The findings in this work provide more insights into the design and development of appropriate alginate hydrogels for different applications.
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Affiliation(s)
- Jiamin Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Centre for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300350, People's Republic of China. Qingdao Institute for Marine Technology of Tianjin University, Qingdao 266235, People's Republic of China. Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, People's Republic of China
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Lewicki J, Bergman J, Kerins C, Hermanson O. Optimization of 3D bioprinting of human neuroblastoma cells using sodium alginate hydrogel. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.bprint.2019.e00053] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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44
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Alginate-nanohydroxyapatite hydrogel system: Optimizing the formulation for enhanced bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:109985. [DOI: 10.1016/j.msec.2019.109985] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/14/2019] [Accepted: 07/18/2019] [Indexed: 01/04/2023]
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45
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Schmidt SK, Schmid R, Arkudas A, Kengelbach-Weigand A, Bosserhoff AK. Tumor Cells Develop Defined Cellular Phenotypes After 3D-Bioprinting in Different Bioinks. Cells 2019; 8:E1295. [PMID: 31652536 PMCID: PMC6829876 DOI: 10.3390/cells8101295] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/15/2019] [Accepted: 10/18/2019] [Indexed: 01/13/2023] Open
Abstract
Malignant melanoma is often used as a model tumor for the establishment of novel therapies. It is known that two-dimensional (2D) culture methods are not sufficient to elucidate the various processes during cancer development and progression. Therefore, it is of major interest to establish defined biofabricated three-dimensional (3D) models, which help to decipher complex cellular interactions. To get an impression of their printability and subsequent behavior, we printed fluorescently labeled melanoma cell lines with Matrigel and two different types of commercially available bioinks, without or with modification (RGD (Arginine-Glycine-Aspartate)-sequence/laminin-mixture) for increased cell-matrix communication. In general, we demonstrated the printability of melanoma cells in all tested biomaterials and survival of the printed cells throughout 14 days of cultivation. Melanoma cell lines revealed specific differential behavior in the respective inks. Whereas in Matrigel, the cells were able to spread, proliferate and form dense networks throughout the construct, the cells showed no proliferation at all in alginate-based bioink. In gelatin methacrylate-based bioink, the cells proliferated in clusters. Surprisingly, the modifications of the bioinks with RGD or the laminin blend did not affect the analyzed cellular behavior. Our results underline the importance of precisely adapting extracellular matrices to individual requirements of specific 3D bioprinting applications.
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Affiliation(s)
- Sonja K Schmidt
- Institute of Biochemistry, Emil-Fischer-Center, Friedrich-Alexander University of Erlangen-Nürnberg, 91054 Erlangen, Germany.
| | - Rafael Schmid
- Laboratory for Tissue-Engineering and Regenerative Medicine, Department of Plastic and Hand Surgery, University Hospital Erlangen-Friedrich Alexander University of Erlangen-Nürnberg FAU, 91054 Erlangen, Germany.
| | - Andreas Arkudas
- Laboratory for Tissue-Engineering and Regenerative Medicine, Department of Plastic and Hand Surgery, University Hospital Erlangen-Friedrich Alexander University of Erlangen-Nürnberg FAU, 91054 Erlangen, Germany.
| | - Annika Kengelbach-Weigand
- Laboratory for Tissue-Engineering and Regenerative Medicine, Department of Plastic and Hand Surgery, University Hospital Erlangen-Friedrich Alexander University of Erlangen-Nürnberg FAU, 91054 Erlangen, Germany.
| | - Anja K Bosserhoff
- Institute of Biochemistry, Emil-Fischer-Center, Friedrich-Alexander University of Erlangen-Nürnberg, 91054 Erlangen, Germany.
- Comprehensive Cancer Center (CCC) Erlangen-EMN, 91054 Erlangen, Germany.
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Alvarez-Primo F, Anil Kumar S, Manciu FS, Joddar B. Fabrication of Surfactant-Dispersed HiPco Single-Walled Carbon Nanotube-Based Alginate Hydrogel Composites as Cellular Products. Int J Mol Sci 2019; 20:ijms20194802. [PMID: 31569637 PMCID: PMC6801781 DOI: 10.3390/ijms20194802] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023] Open
Abstract
In this study, we designed, synthesized, and characterized ultrahigh purity single-walled carbon nanotube (SWCNT)-alginate hydrogel composites. Among the parameters of importance in the formation of an alginate-based hydrogel composite with single-walled carbon nanotubes, are their varying degrees of purity, their particulate agglomeration and their dose-dependent correlation to cell viability, all of which have an impact on the resultant composite’s efficiency and effectiveness towards cell-therapy. To promote their homogenous dispersion by preventing agglomeration of the SWCNT, three different surfactants-sodium dodecyl sulfate (SDS-anionic), cetyltrimethylammonium bromide (CTAB-cationic), and Pluronic F108 (nonionic)-were utilized. After mixing of the SWCNT-surfactant with alginate, the mixtures were cross-linked using divalent calcium ions and characterized using Raman spectroscopy. Rheometric analysis showed an increase in complex viscosity, loss, and storage moduli of the SWCNT composite gels in comparison with pure alginate gels. Scanning electron microscopy revealed the presence of a well-distributed porous structure, and all SWCNT-gel composites depicted enhanced electrical conductivity with respect to alginate gels. To characterize their biocompatibility, cardiomyocytes were cultured atop these SWCNT-gels. Results comprehensively implied that Pluronic F108 was most efficient in preventing agglomeration of the SWCNTs in the alginate matrix, leading to a stable scaffold formation without posing any toxicity to the cells.
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Affiliation(s)
- Fabian Alvarez-Primo
- Inspired Materials & Stem-Cell Based Tissue Engineering Laboratory (IMSTEL), El Paso, TX 79902, USA.
- Department of Metallurgical, Materials and Biomedical Engineering, M201 Engineering, University of Texas at El Paso, 500 W University Avenue, El Paso, TX 79968, USA.
| | - Shweta Anil Kumar
- Inspired Materials & Stem-Cell Based Tissue Engineering Laboratory (IMSTEL), El Paso, TX 79902, USA.
- Department of Metallurgical, Materials and Biomedical Engineering, M201 Engineering, University of Texas at El Paso, 500 W University Avenue, El Paso, TX 79968, USA.
| | - Felicia S Manciu
- Department of Physics, University of Texas at El Paso, 500 W University Avenue, El Paso, TX 79968, USA.
- Border Biomedical Research Center, University of Texas at El Paso, 500 W University Avenue, El Paso, TX 79968, USA.
| | - Binata Joddar
- Inspired Materials & Stem-Cell Based Tissue Engineering Laboratory (IMSTEL), El Paso, TX 79902, USA.
- Department of Metallurgical, Materials and Biomedical Engineering, M201 Engineering, University of Texas at El Paso, 500 W University Avenue, El Paso, TX 79968, USA.
- Border Biomedical Research Center, University of Texas at El Paso, 500 W University Avenue, El Paso, TX 79968, USA.
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Visscher DO, Gleadall A, Buskermolen JK, Burla F, Segal J, Koenderink GH, Helder MN, van Zuijlen PPM. Design and fabrication of a hybrid alginate hydrogel/poly(ε-caprolactone) mold for auricular cartilage reconstruction. J Biomed Mater Res B Appl Biomater 2019; 107:1711-1721. [PMID: 30383916 PMCID: PMC6587956 DOI: 10.1002/jbm.b.34264] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/14/2018] [Accepted: 09/23/2018] [Indexed: 11/11/2022]
Abstract
The aim of this study was to design and manufacture an easily assembled cartilage implant model for auricular reconstruction. First, the printing accuracy and mechanical properties of 3D-printed poly-ε-caprolactone (PCL) scaffolds with varying porosities were determined to assess overall material properties. Next, the applicability of alginate as cell carrier for the cartilage implant model was determined. Using the optimal outcomes of both experiments (in terms of (bio)mechanical properties, cell survival, neocartilage formation, and printing accuracy), a hybrid auricular implant model was developed. PCL scaffolds with 600 μm distances between strands exhibited the best mechanical properties and most optimal printing quality for further exploration. In alginate, chondrocytes displayed high cell survival (~83% after 21 days) and produced cartilage-like matrix in vitro. Alginate beads cultured in proliferation medium exhibited slightly higher compressive moduli (6 kPa) compared to beads cultured in chondrogenic medium (3.5 kPa, p > .05). The final auricular mold could be printed with 300 μm pores and high fidelity, and the injected chondrocytes survived the culture period of 21 days. The presented hybrid auricular mold appears to be an adequate model for cartilage tissue engineering and may provide a novel approach to auricular cartilage regeneration for facial reconstruction. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1711-1721, 2019.
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Affiliation(s)
- D. O. Visscher
- Department of Plastic, Reconstructive and Hand SurgeryAmsterdam University Medical Center, Amsterdam Movement SciencesAmsterdamThe Netherlands
| | - A. Gleadall
- Manufacturing and Process TechnologiesFaculty of Engineering, University of NottinghamNottinghamEnglandUK
- Wolfson School of Mechanical and Manufacturing EngineeringLoughborough UniversityLeicestershireLE11 3TUUK
| | - J. K. Buskermolen
- Department of DermatologyAmsterdam University Medical Center, Amsterdam Movement SciencesAmsterdamThe Netherlands
| | - F. Burla
- Department of Living Matter, AMOLFAmsterdamThe Netherlands
| | - J. Segal
- Manufacturing and Process TechnologiesFaculty of Engineering, University of NottinghamNottinghamEnglandUK
| | | | - M. N. Helder
- Department of Oral and Maxillofacial Surgery/Oral PathologyAmsterdam University Medical Center, Amsterdam Movement SciencesAmsterdamThe Netherlands
| | - P. P. M. van Zuijlen
- Department of Plastic, Reconstructive and Hand SurgeryAmsterdam University Medical Center, Amsterdam Movement SciencesAmsterdamThe Netherlands
- Department of PlasticReconstructive and Hand Surgery, Red Cross HospitalBeverwijkThe Netherlands
- Association of Dutch Burn CentersBeverwijkThe Netherlands
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48
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Indirect 3D bioprinting and characterization of alginate scaffolds for potential nerve tissue engineering applications. J Mech Behav Biomed Mater 2019; 93:183-193. [DOI: 10.1016/j.jmbbm.2019.02.014] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 11/05/2018] [Accepted: 02/13/2019] [Indexed: 02/07/2023]
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49
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Tang JD, Roloson EB, Amelung CD, Lampe KJ. Rapidly Assembling Pentapeptides for Injectable Delivery (RAPID) Hydrogels as Cytoprotective Cell Carriers. ACS Biomater Sci Eng 2019; 5:2117-2121. [DOI: 10.1021/acsbiomaterials.9b00389] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- James D. Tang
- Department of Chemical Engineering, University of Virginia, 102 Engineers’ Way, Charlottesville, Virginia 22904, United States
| | - Emily B. Roloson
- Department of Biomedical Engineering, University of Virginia, 415 Lane Road, Charlottesville, Virginia 22904, United States
| | - Connor D. Amelung
- Department of Biomedical Engineering, University of Virginia, 415 Lane Road, Charlottesville, Virginia 22904, United States
| | - Kyle J. Lampe
- Department of Chemical Engineering, University of Virginia, 102 Engineers’ Way, Charlottesville, Virginia 22904, United States
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50
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Pan HM, Chen S, Jang TS, Han WT, Jung HD, Li Y, Song J. Plant seed-inspired cell protection, dormancy, and growth for large-scale biofabrication. Biofabrication 2019; 11:025008. [PMID: 30708358 DOI: 10.1088/1758-5090/ab03ed] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Biofabrication technologies have endowed us with the capability to fabricate complex biological constructs. However, cytotoxic biofabrication conditions have been a major challenge for their clinical application, leading to a trade-off between cell viability and scalability of biofabricated constructs. Taking inspiration from nature, we proposed a cell protection strategy which mimicks the protected and dormant state of plant seeds in adverse external conditions and their germination in response to appropriate environmental cues. Applying this bioinspired strategy to biofabrication, we successfully preserved cell viability and enhanced the seeding of cell-laden biofabricated constructs via a cytoprotective pyrogallol (PG)-alginate encapsulation system. Our cytoprotective encapsulation technology utilizes PG-triggered sporulation and germination processes to preserve cells, is mechanically robust, chemically resistant, and highly customizable to adequately match cell protectability with cytotoxicity of biofabrication conditions. More importantly, the facile and tunable decapsulation of our PG-alginate system allows for effective germination of dormant cells, under typical culture conditions. With this approach, we have successfully achieved a biofabrication process which is reproducible, scalable, and provided a practical solution for off-the-shelf availability, shipping and temporary storage of fabricated bio-constructs.
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Affiliation(s)
- Houwen Matthew Pan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 639798, Singapore
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