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Liu Y, Zhang G, Li Y, Wu X, Shang S, Che W. Enhancing immobilized Chlorella vulgaris growth with novel buoyant barium alginate bubble beads. BIORESOURCE TECHNOLOGY 2024; 406:130996. [PMID: 38885729 DOI: 10.1016/j.biortech.2024.130996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Microalgae immobilization in alginate beads shows promise for biomass production and water pollution control. However, carrier instability and mass transfer limitations are challenges. This study introduces buoyant barium alginate bubble beads (BABB), which offer exceptional stability and enhance Chlorella vulgaris growth. In just 12 days, compared to traditional calcium alginate beads, BABB achieved a 20 % biomass increase while minimizing cell leakage and simplifying harvesting. BABB optimization involved co-immobilization with BG-11 medium, enrichment of CO2 in internal bubbles, and the integration of Fe nanoparticles (FeNPs). In the open raceway pond reactor, these optimizations resulted in a 39 % increase in biomass over 7 days compared to the unoptimized setup in closed flasks. Furthermore, enhancements in pigment and organic matter production were observed, along with improved removal of ammonia nitrogen and phosphate. These results highlight the overall advantages of BABB for microalgae immobilization, offering a scientific foundation for their effective utilization.
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Affiliation(s)
- Yi Liu
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, PR China
| | - Gaoshan Zhang
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, PR China
| | - Yanpeng Li
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, PR China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, PR China.
| | - Xuexue Wu
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, PR China
| | - Shuo Shang
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, PR China
| | - Wenlu Che
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, PR China
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2
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Park H, Lee EY, You Y, Rhee M, Kim J, Hwang S, Lee P. Long-term efficacy of encapsulated xenogeneic islet transplantation: Impact of encapsulation techniques and donor genetic traits. J Diabetes Investig 2024; 15:693-703. [PMID: 38634411 PMCID: PMC11143419 DOI: 10.1111/jdi.14216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/26/2024] [Accepted: 04/01/2024] [Indexed: 04/19/2024] Open
Abstract
AIMS/INTRODUCTION To investigate the long-term efficacy of various encapsulated xenogeneic islet transplantation, and to explore the impact of different donor porcine genetic traits on islet transplantation outcomes. MATERIALS AND METHODS Donor porcine islets were obtained from wild-type, α1,3-galactosyltransferase knockout (GTKO) and GTKO with overexpression of membrane cofactor protein genotype. Naked, alginate, alginate-chitosan (AC), alginate-perfluorodecalin (A-PFD) and AC-perfluorodecalin (AC-PFD) encapsulated porcine islets were transplanted into diabetic mice. RESULTS In vitro assessments showed no differences in the viability and function of islets across encapsulation types and donor porcine islet genotypes. Xenogeneic encapsulated islet transplantation with AC-PFD capsules showed the most favorable long-term outcomes, maintaining normal blood glucose levels for 180 days. A-PFD capsules showed comparable results to AC-PFD capsules, followed by AC capsules and alginate capsules. Conversely, blood glucose levels in naked islet transplantation increased to >300 mg/dL within a week after transplantation. Naked islet transplantation outcomes showed no improvement based on donor islet genotype. However, alginate or AC capsules showed delayed increases in blood glucose levels for GTKO and GTKO with overexpression of membrane cofactor protein porcine islets compared with wild-type porcine islets. CONCLUSION The AC-PFD capsule, designed to ameliorate both hypoxia and inflammation, showed the highest long-term efficacy in xenogeneic islet transplantation. Genetic modifications of porcine islets with GTKO or GTKO with overexpression of membrane cofactor protein did not influence naked islet transplantation outcomes, but did delay graft failure when encapsulated.
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Affiliation(s)
- Heon‐Seok Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulSouth Korea
| | - Eun Young Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulSouth Korea
| | - Young‐Hye You
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulSouth Korea
| | - Marie Rhee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulSouth Korea
| | - Jong‐Min Kim
- Xenotransplantation Research CenterSeoul National University College of MedicineSeoulSouth Korea
- Present address:
Department of Animal HealthCheongju University College of Health and Medical SciencesCheongju‐siChungcheongbuk‐doSouth Korea
| | - Seong‐Soo Hwang
- Animal Biotechnology Division, National Institute of Animal ScienceRural Development AdministrationWanju‐gunJeonbuk‐doSouth Korea
| | - Poong‐Yeon Lee
- Animal Biotechnology Division, National Institute of Animal ScienceRural Development AdministrationWanju‐gunJeonbuk‐doSouth Korea
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3
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Fang K, Li P, Zhang B, Liu S, Zhao X, Kou L, Xu W, Guo X, Li J. Insights on updates in sodium alginate/MXenes composites as the designer matrix for various applications: A review. Int J Biol Macromol 2024; 269:132032. [PMID: 38702004 DOI: 10.1016/j.ijbiomac.2024.132032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
Advancements in two-dimensional materials, particularly MXenes, have spurred the development of innovative composites through their integration with natural polymers such as sodium alginate (SA). Mxenes exhibit a broad specific surface area, excellent electrical conductivity, and an abundance of surface terminations, which can be combined with SA to maximize the synergistic effect of the materials. This article provides a comprehensive review of state-of-the-art techniques in the fabrication of SA/MXene composites, analyzing the resulting structural and functional enhancements with a specific focus on advancing the design of these composites for practical applications. A detailed exploration of SA/MXene composites is provided, highlighting their utility in various sectors, such as wearable electronics, wastewater treatment, biomedical applications, and electromagnetic interference (EMI) shielding. The review identifies the unique advantages conferred by incorporating MXene in these composites, examines the current challenges, and proposes future research directions to understand and optimize these promising materials thoroughly. The remarkable properties of MXenes are emphasized as crucial for advancing the performance of SA-based composites, indicating significant potential for developing high-performance composite materials.
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Affiliation(s)
- Kun Fang
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Pei Li
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China,.
| | - Bing Zhang
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Si Liu
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Xiaoyang Zhao
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Linxuan Kou
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Wei Xu
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Xiangyang Guo
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
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Fernando PUAI, Kennedy AJ, Pokrzywinski K, Jernberg J, Thornell T, George G, Kosgei GK, Wang Y, Coyne KJ. Development of alginate beads for precise environmental release applications: A design of experiment based approach and analysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119872. [PMID: 38157579 DOI: 10.1016/j.jenvman.2023.119872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 01/03/2024]
Abstract
Controlled release of active ingredients are important for drug delivery and more recently environmental applications including modulated dosing of chemical and biological controls. This study demonstrates the importance of investigating various material science factors that can influence the diffusion rates of alginate beads to improve and tune their performance for marine environmental applications. This investigation aimed to design a rational workflow to aid in leveraging alginate bead use as a carrier matrix for releasing a specific active agent into water. Experiments were conducted to focus on the narrow a large list of relevant material formulation parameters, which included chitosan molecular weight, chitosan concentration, calcium concentration, drop height, and bead size. Once the most relevant material preparation methods were screened, a more robust statistic Design of Experiments approach was performed and results determined the important (and unimportant) factors for increasing dye release kinetics in marine water. The process was further streamlined by narrowing the critical experimental factors to a three-level based on the prior analysis: chitosan MW, chitosan concentration, and bead size. Analysis of the collected data indicated that while chitosan MW had a negligible impact (Fstatistic = 0.22), bead size (Fstatistic = 60.33) significantly influenced the diffusion rates based on surface area. However, chitosan MW had minor effects where lower chitosan MW enabled higher product release rates. This case investigation was a novel application of the design of experiment approach towards environmental applications to understand differences in release rates to marine waters for the first time and the workflow provided also serve as the basis for researchers to optimize other environmental applications requiring optimization when it is unknown how a large number of formulation variables will impact performance in different environmental scenarios.
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Affiliation(s)
- P U Ashvin Iresh Fernando
- Bennett Aerospace, 1100 Crescent Green, #250, Cary, NC, 27518, USA; SIMETRI, Inc., 937 S Semoran Blvd Suite 100, Winter Park, FL, 32792, USA
| | - Alan J Kennedy
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS, 39180, USA; Virginia Polytechnic Institute and State University, Macromolecules Innovation Institute, Blacksburg, VA, 24061, USA.
| | - Kaytee Pokrzywinski
- NOAA National Centers for Coastal Ocean Science, 101 Pivers Island Rd, Beaufort, NC, 28516, USA
| | - Johanna Jernberg
- Oak Ridge Institute for Science and Education, 1299 Bethel Valley Rd, Oak Ridge, TN, 37830, USA
| | - Travis Thornell
- U.S. Army Engineer Research and Development Center, Geo Structures Laboratory, 3909 Halls Ferry Road, Vicksburg, MS, 39180, USA
| | - Garrett George
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS, 39180, USA
| | - Gilbert K Kosgei
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS, 39180, USA
| | - Yanfei Wang
- College of Earth, Ocean, and Environment, University of Delaware, 1044 College Dr, Lewes, DE, 19958, USA
| | - Kathryn J Coyne
- College of Earth, Ocean, and Environment, University of Delaware, 1044 College Dr, Lewes, DE, 19958, USA
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5
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Sapkota T, Shrestha BK, Shrestha S, Bhattarai N. Chitin Nanofibrils Enabled Core-Shell Microcapsules of Alginate Hydrogel. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2470. [PMID: 37686978 PMCID: PMC10489914 DOI: 10.3390/nano13172470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 08/28/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
An engineered 3D architectural network of the biopolymeric hydrogel can mimic the native cell environment that promotes cell infiltration and growth. Among several bio-fabricated hydrogel structures, core-shell microcapsules inherit the potential of cell encapsulation to ensure the growth and transport of cells and cell metabolites. Herein, a co-axial electrostatic encapsulation strategy is used to create and encapsulate the cells into chitin nanofibrils integrated alginate hydrogel microcapsules. Three parameters that are critical in the electrostatic encapsulation process, hydrogel composition, flow rate, and voltage were optimized. The physicochemical characterization including structure, size, and stability of the core-shell microcapsules was analyzed by scanning electron microscope (SEM), FTIR, and mechanical tests. The cellular responses of the core-shell microcapsules were evaluated through in vitro cell studies by encapsulating NIH/3T3 fibroblast cells. Notably, the bioactive microcapsule showed that the cell viability was found excellent for more than 2 weeks. Thus, the results of this core-shell microcapsule showed a promising approach to creating 3D hydrogel networks suitable for different biomedical applications such as in vitro tissue models for toxicity studies, wound healing, and tissue repair.
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Affiliation(s)
- Thakur Sapkota
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA; (T.S.); (B.K.S.); (S.S.)
- Department of Applied Science and Technology, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - Bishnu Kumar Shrestha
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA; (T.S.); (B.K.S.); (S.S.)
| | - Sita Shrestha
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA; (T.S.); (B.K.S.); (S.S.)
| | - Narayan Bhattarai
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA; (T.S.); (B.K.S.); (S.S.)
- Department of Applied Science and Technology, North Carolina A&T State University, Greensboro, NC 27411, USA
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6
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Goto R, Nakahata M, Delattre C, Petit E, El Boutachfaiti R, Sakai S. Fabrication of cell-laden microbeads and microcapsules composed of bacterial polyglucuronic acid. Int J Biol Macromol 2023:125481. [PMID: 37343612 DOI: 10.1016/j.ijbiomac.2023.125481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 06/07/2023] [Accepted: 06/17/2023] [Indexed: 06/23/2023]
Abstract
In the past decades, the microencapsulation of mammalian cells into microparticles has been extensively studied for various in vitro and in vivo applications. The aim of this study was to demonstrate the viability of bacterial polyglucuronic acid (PGU), an exopolysaccharide derived from bacteria and composed of glucuronic acid units, as an effective material for cell microencapsulation. Using the method of dropping an aqueous solution of PGU-containing cells into a Ca2+-loaded solution, we produced spherical PGU microbeads with >93 % viability in the encapsulated human hepatoma HepG2 cells. Hollow-core microcapsules were formed via polyelectrolyte complex layer formation of PGU and poly-l-lysine, after which Ca2+, a cross-linker of PGU, was chelated, and this was accomplished by sequential immersion of microbeads in aqueous solutions of poly-l-lysine and sodium citrate. The encapsulated HepG2 cells proliferated and formed cell aggregates within the microparticles over a 14-day culture, with significantly larger aggregates forming within the microcapsules. Our results provide evidence for the viability of PGU for cell microencapsulation for the first time, thereby contributing to advancements in tissue engineering.
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Affiliation(s)
- Ryota Goto
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-Cho, Toyonaka, Osaka 560-8531, Japan.
| | - Masaki Nakahata
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka 560-0043, Japan.
| | - Cédric Delattre
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France; Institut Universitaire de France (IUF), 1 Rue Descartes, 75005 Paris, France.
| | - Emmanuel Petit
- UMRT INRAE 1158 BioEcoAgro - BIOPI Biologie des Plantes et Innovation, IUT d'Amiens, Université de Picardie Jules Verne, Amiens, France.
| | - Redouan El Boutachfaiti
- UMRT INRAE 1158 BioEcoAgro - BIOPI Biologie des Plantes et Innovation, IUT d'Amiens, Université de Picardie Jules Verne, Amiens, France.
| | - Shinji Sakai
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-Cho, Toyonaka, Osaka 560-8531, Japan.
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7
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Wong FSY, Tsang KK, Chan BP, Lo ACY. Both non-coated and polyelectrolytically-coated intraocular collagen-alginate composite gels enhanced photoreceptor survival in retinal degeneration. Biomaterials 2023; 293:121948. [PMID: 36516686 DOI: 10.1016/j.biomaterials.2022.121948] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 11/09/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Treatments of vision-threatening retinal diseases are often hampered by drug delivery difficulties. Polyelectrolytically-coated alginate encapsulated-cell therapy (ECT) systems have shown therapeutic efficacy through prolonged in vivo drug delivery but still face various biocompatibility, viability, drug delivery and mechanical stability issues in clinical trials. Here, novel, injectable alginate-poly-l-lysine (AP)-coated composite alginate-collagen (CAC) ECT gels were developed for sustained ocular drug delivery, and their long-term performance was compared with non-coated CAC ECT gels. All optimised AP-coated gels (AP1- and AP5.5-CAC ECT: 2 mg/ml collagen, 1.5% high molecular weight alginate, 50,000 cells/gel, with 0.01% or 0.05% poly-l-lysine coating for 5 min, followed by 0.15% alginate coating) and non-coated gels showed effective cell proliferation control, cell viability support and continuous delivery of bioactive glial cell-derived neurotrophic factor (GDNF) with no significant gel degradation in vitro and in rat vitreous. Most importantly, intravitreally injected gels demonstrated therapeutic efficacy in Royal College of Surgeons rats with retinal degeneration, resulting in reduced photoreceptor apoptosis and retinal function loss. At 6 months post-implantation, no host-tissue attachment or ingrowth was detected on the retrieved gels. Non-coated gels were mechanically more stable than AP5.5-coated ones under the current cell loading. This study demonstrated that both coated and non-coated ECT gels can serve as well-controlled, sustained drug delivery platforms for treating posterior eye diseases without immunosuppression.
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Affiliation(s)
- Francisca Siu Yin Wong
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Ken Kin Tsang
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Barbara Pui Chan
- Tissue Engineering Laboratory, Department of Mechanical Engineering, Faculty of Engineering, The University of Hong Kong, Hong Kong, China
| | - Amy Cheuk Yin Lo
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
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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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Hurtado A, Aljabali AAA, Mishra V, Tambuwala MM, Serrano-Aroca Á. Alginate: Enhancement Strategies for Advanced Applications. Int J Mol Sci 2022; 23:ijms23094486. [PMID: 35562876 PMCID: PMC9102972 DOI: 10.3390/ijms23094486] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/14/2022] [Accepted: 04/17/2022] [Indexed: 02/06/2023] Open
Abstract
Alginate is an excellent biodegradable and renewable material that is already used for a broad range of industrial applications, including advanced fields, such as biomedicine and bioengineering, due to its excellent biodegradable and biocompatible properties. This biopolymer can be produced from brown algae or a microorganism culture. This review presents the principles, chemical structures, gelation properties, chemical interactions, production, sterilization, purification, types, and alginate-based hydrogels developed so far. We present all of the advanced strategies used to remarkably enhance this biopolymer’s physicochemical and biological characteristics in various forms, such as injectable gels, fibers, films, hydrogels, and scaffolds. Thus, we present here all of the material engineering enhancement approaches achieved so far in this biopolymer in terms of mechanical reinforcement, thermal and electrical performance, wettability, water sorption and diffusion, antimicrobial activity, in vivo and in vitro biological behavior, including toxicity, cell adhesion, proliferation, and differentiation, immunological response, biodegradation, porosity, and its use as scaffolds for tissue engineering applications. These improvements to overcome the drawbacks of the alginate biopolymer could exponentially increase the significant number of alginate applications that go from the paper industry to the bioprinting of organs.
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Affiliation(s)
- Alejandro Hurtado
- Biomaterials and Bioengineering Laboratory, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001 Valencia, Spain;
| | - Alaa A. A. Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, Irbid 21163, Jordan;
| | - Vijay Mishra
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India;
| | - Murtaza M. Tambuwala
- School of Pharmacy and Pharmaceutical Science, Ulster University, Coleraine BT52 1SA, Northern Ireland, UK;
| | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Laboratory, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001 Valencia, Spain;
- Correspondence:
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10
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Calcium peroxide aids tyramine-alginate gel to crosslink with tyrosinase for efficient cartilage repair. Int J Biol Macromol 2022; 208:299-313. [PMID: 35288166 DOI: 10.1016/j.ijbiomac.2022.03.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/02/2022] [Accepted: 03/09/2022] [Indexed: 12/14/2022]
Abstract
The innate cartilage extracellular matrix is avascular and plays a vital role in innate chondrocytes. Recapping the crucial components of the extracellular matrix in engineered organs via polymeric gels and bioinspired approaches is promising for improving the regenerative aptitude of encapsulated cartilage/chondrocytes. Conventional gel formation techniques for polymeric materials rely on employing oxidative crosslinking, which is constrained in this avascular environment. Further, poor mechanical properties limit the practical applications of polymeric gels and reduce their therapeutic efficacy. Herein, the purpose of this study was to develop a bioadhesive gel possessing dual crosslinking for engineering cartilage. Tyramine (TYR) was first chemically conjugated to the alginate (ALG) backbone to form an ALG-TYR precursor, followed by the addition of calcium peroxide (CaO2); calcium ions of CaO2 physically crosslink with ALG, and oxygen atoms of CaO2 chemically crosslink TYR with tyrosinase, thus enabling dual/enhanced crosslinking and possessing injectability. The ALG-TYR/tyrosinase/CaO2 gel system was chemically, mechanically, cellularly, and microscopically characterized. The gel system developed herein was biocompatible and showed augmented mechanical strength. The results showed, for the first time, that CaO2 supplementation preserved cell viability and enhanced the crosslinking ability, bioadhesion, mechanical strength, chondrogenesis, and stability for cartilage regeneration.
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Dumitrașcu AM, Caraș I, Țucureanu C, Ermeneanu AL, Tofan VC. Nickel (II) and Cobalt (II) Alginate Biopolymers as a "Carry and Release" Platform for Polyhistidine-Tagged Proteins. Gels 2022; 8:66. [PMID: 35200448 PMCID: PMC8871198 DOI: 10.3390/gels8020066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/29/2021] [Accepted: 01/13/2022] [Indexed: 11/30/2022] Open
Abstract
Protein immobilization using biopolymer scaffolds generally involves undesired protein loss of function due to denaturation, steric hindrance or improper orientation. Moreover, most methods for protein immobilization require expensive reagents and laborious procedures. This work presents the synthesis and proof of concept application of two alginate hydrogels that are able to bind proteins with polyhistidine tags by means of interaction with the crosslinking cations. Nickel (II) and cobalt (II) alginate hydrogels were prepared using a simple ionic gelation method. Hydrogels were characterized by optical microscopy and AFM, and evaluated for potential cytotoxicity. In addition, binding capacity was tested towards proteins with or without HisTAG. Hydrogels had moderate cytotoxicity and were able to exclusively bind polyhistidine-tagged proteins with a binding capacity of approximately 300 µg EGFP (enhanced green fluorescent protein) per 1 mL of hydrogel. A lyophilized hydrogel-protein complex dissolved upon the addition of PBS and allowed the protein release and regain of biological activity. In conclusion, the nickel (II) and cobalt (II) alginate biopolymers provided an excellent platform for the "carry and release" of polyhistidine-tagged proteins.
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Affiliation(s)
| | | | | | | | - Vlad-Constantin Tofan
- Cantacuzino National Military Medical Institute for Research and Development, 050096 Bucharest, Romania; (A.-M.D.); (I.C.); (C.Ț.); (A.-L.E.)
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12
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Xue W, Liu B, Zhang H, Ryu S, Kuss M, Shukla D, Hu G, Shi W, Jiang X, Lei Y, Duan B. Controllable fabrication of alginate/poly-L-ornithine polyelectrolyte complex hydrogel networks as therapeutic drug and cell carriers. Acta Biomater 2022; 138:182-192. [PMID: 34774784 DOI: 10.1016/j.actbio.2021.11.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/29/2021] [Accepted: 11/04/2021] [Indexed: 12/31/2022]
Abstract
Polyelectrolyte complex (PEC) hydrogels are advantageous as therapeutic agent and cell carriers. However, due to the weak nature of physical crosslinking, PEC swelling and cargo burst release are easily initiated. Also, most current cell-laden PEC hydrogels are limited to fibers and microcapsules with unfavorable dimensions and structures for practical implantations. To overcome these drawbacks, alginate (Alg)/poly-L-ornithine (PLO) PEC hydrogels are fabricated into microcapsules, fibers, and bulk scaffolds to explore their feasibility as drug and cell carriers. Stable Alg/PLO microcapsules with controllable shapes are obtained through aqueous electrospraying technique, which avoids osmotic shock and prolongs the release time. Model enzyme and nanosized cargos are successfully encapsulated and continuously released for more than 21 days. Alg/PLO PEC fibers are then prepared to encapsulate brown adipose progenitors (BAPs) and Jurkat T cells. The electrostatic interactions between Alg and PLO are found to facilitate the printability and self-support ability of Alg/PLO bioinks. Alg/PLO PEC fibers and scaffolds support cell proliferation, differentiation, and functionalization. These results demonstrate new options for biocompatible PEC hydrogel preparation and improve the understanding of PEC hydrogels as drug and cell carriers. STATEMENT OF SIGNIFICANCE: In this study, the concept of polyelectrolyte complex hydrogel networks as drug and cell carriers has been demonstrated. Their feasibility to achieve sustained drug release and cell functionality was explored, from microcapsules to fibers to three-dimension printed scaffolds. PEC microcapsules with controllable shapes were obtained. Therapeutic drugs can be encapsulated and continuously release for more than 21 days. Benefiting from the dynamic interactions of physically crosslinked PEC, self-healing fibers were achieved. Besides, the electrostatic interactions between polyelectrolytes were found to facilitate the printability and self-support ability of PEC bioinks. The PEC fibers and scaffolds with controllable structure supported cell proliferation, differentiation, and function. The outcome of current research promotes design of new biocompatible PEC hydrogels and potential drug and cell carriers.
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Fekih-Ahmed K, Khemissi H, Aschi A. Structural transition induced by physicochemical parameters during complexation and coacervation of Poly-L-Ornithine with poly-(sodium 4-styrene sulfonate). INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1960339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Khouloud Fekih-Ahmed
- Faculté des Sciences de Tunis, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, Université de Tunis El Manar, Tunis, Tunisia
| | - Hela Khemissi
- Faculté des Sciences de Tunis, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, Université de Tunis El Manar, Tunis, Tunisia
| | - Adel Aschi
- Faculté des Sciences de Tunis, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, Université de Tunis El Manar, Tunis, Tunisia
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Mooranian A, Jones M, Ionescu CM, Walker D, Wagle SR, Kovacevic B, Chester J, Foster T, Johnston E, Mikov M, Al-Salami H. Advancements in Assessments of Bio-Tissue Engineering and Viable Cell Delivery Matrices Using Bile Acid-Based Pharmacological Biotechnologies. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1861. [PMID: 34361247 PMCID: PMC8308343 DOI: 10.3390/nano11071861] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/07/2021] [Accepted: 07/14/2021] [Indexed: 12/18/2022]
Abstract
The utilisation of bioartificial organs is of significant interest to many due to their versatility in treating a wide range of disorders. Microencapsulation has a potentially significant role in such organs. In order to utilise microcapsules, accurate characterisation and analysis is required to assess their properties and suitability. Bioartificial organs or transplantable microdevices must also account for immunogenic considerations, which will be discussed in detail. One of the most characterized cases is the investigation into a bioartificial pancreas, including using microencapsulation of islets or other cells, and will be the focus subject of this review. Overall, this review will discuss the traditional and modern technologies which are necessary for the characterisation of properties for transplantable microdevices or organs, summarizing analysis of the microcapsule itself, cells and finally a working organ. Furthermore, immunogenic considerations of such organs are another important aspect which is addressed within this review. The various techniques, methodologies, advantages, and disadvantages will all be discussed. Hence, the purpose of this review is providing an updated examination of all processes for the analysis of a working, biocompatible artificial organ.
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Affiliation(s)
- Armin Mooranian
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Melissa Jones
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Daniel Walker
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Susbin Raj Wagle
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Bozica Kovacevic
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Jacqueline Chester
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Thomas Foster
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Edan Johnston
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21101 Novi Sad, Serbia;
| | - Hani Al-Salami
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; (A.M.); (M.J.); (C.M.I.); (D.W.); (S.R.W.); (B.K.); (J.C.); (T.F.); (E.J.)
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
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15
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Lopez-Mendez TB, Santos-Vizcaino E, Pedraz JL, Orive G, Hernandez RM. Cell microencapsulation technologies for sustained drug delivery: Latest advances in efficacy and biosafety. J Control Release 2021; 335:619-636. [PMID: 34116135 DOI: 10.1016/j.jconrel.2021.06.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 06/04/2021] [Accepted: 06/06/2021] [Indexed: 10/21/2022]
Abstract
The development of cell microencapsulation systems began several decades ago. However, today few systems have been tested in clinical trials. For this reason, in the last years, researchers have directed efforts towards trying to solve some of the key aspects that still limit efficacy and biosafety, the two major criteria that must be satisfied to reach the clinical practice. Regarding the efficacy, which is closely related to biocompatibility, substantial improvements have been made, such as the purification or chemical modification of the alginates that normally form the microspheres. Each of the components that make up the microcapsules has been carefully selected to avoid toxicities that can damage the encapsulated cells or generate an immune response leading to pericapsular fibrosis. As for the biosafety, researchers have developed biological circuits capable of actively responding to the needs of the patients to precisely and accurately release the demanded drug dose. Furthermore, the structure of the devices has been subject of study to adequately protect the encapsulated cells and prevent their spread in the body. The objective of this review is to describe the latest advances made by scientist to improve the efficacy and biosafety of cell microencapsulation systems for sustained drug delivery, also highlighting those points that still need to be optimized.
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Affiliation(s)
- Tania B Lopez-Mendez
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Edorta Santos-Vizcaino
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Jose Luis Pedraz
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Gorka Orive
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), BTI Biotechnology Institute, Vitoria-Gasteiz, Spain; Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore.
| | - Rosa Maria Hernandez
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain.
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16
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Khodabakhshaghdam S, Khoshfetrat AB, Rahbarghazi R. Alginate-chitosan core-shell microcapsule cultures of hepatic cells in a small scale stirred bioreactor: impact of shear forces and microcapsule core composition. J Biol Eng 2021; 15:14. [PMID: 33865460 PMCID: PMC8052835 DOI: 10.1186/s13036-021-00265-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 04/03/2021] [Indexed: 01/20/2023] Open
Abstract
A small scale stirred bioreactor was designed and the effect of different agitation rates (30, 60 and 100 rpm) was investigated on HepG2 cells cultured in alginate-chitosan (AC) core-shell microcapsule in terms of the cell proliferation and liver-specific function. The microencapsulated hepatic cells could proliferate well when they were cultured for 10 days at 30 rpm while the cell-laden microcapsules showed no cell proliferation at 100 rpm in the bioreactor system. Albumin production rate, as an important liver function, increased also 1.8- and 1.5- fold under stirring rate of 30 rpm compared to the static culture and 60 rpm of agitation, respectively. Moreover, In comparison with the static culture, about 1.5-fold increment in urea production was observed at 30 rpm. Similarly, the highest expressions of albumin and P450 genes were found at 30 rpm stirring rate, which were 4.9- and 19.2-fold of the static culture. Addition of collagen to the microcapsule core composition (ACol/C) could improve the cell proliferation and functionality at 60 rpm in comparison with the cell-laden microcapsules without collagen. The study demonstrated the hepatic cell-laden ACol/C microcapsule hydrogel cultured in the small scale stirred bioreactor at low mixing rate has a great potential for mass production of the hepatic cells while maintaining liver-specific functions.
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Affiliation(s)
- Shahla Khodabakhshaghdam
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, 51335-1996, Iran
- Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz, 51335-1996, Iran
| | - Ali Baradar Khoshfetrat
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, 51335-1996, Iran.
- Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz, 51335-1996, Iran.
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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17
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Teng K, An Q, Chen Y, Zhang Y, Zhao Y. Recent Development of Alginate-Based Materials and Their Versatile Functions in Biomedicine, Flexible Electronics, and Environmental Uses. ACS Biomater Sci Eng 2021; 7:1302-1337. [PMID: 33764038 DOI: 10.1021/acsbiomaterials.1c00116] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alginate is a natural polysaccharide that is easily chemically modified or compounded with other components for various types of functionalities. The alginate derivatives are appealing not only because they are biocompatible so that they can be used in biomedicine or tissue engineering but also because of the prospering bioelectronics that require various biomaterials to interface between human tissues and electronics or to serve as electronic components themselves. The study of alginate-based materials, especially hydrogels, have repeatedly found new frontiers over recent years. In this Review, we document the basic properties of alginate, their chemical modification strategies, and the recent development of alginate-based functional composite materials. The newly thrived functions such as ionically conductive hydrogel or 3D or 4D cell culturing matrix are emphasized among other appealing potential applications. We expect that the documentation of relevant information will stimulate scientific efforts to further develop biocompatible electronics or smart materials and to help the research domain better address the medicine, energy, and environmental challenges faced by human societies.
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Affiliation(s)
- Kaixuan Teng
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yao Chen
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yantao Zhao
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, Beijing 100048, China.,Beijing Engineering Research Center of Orthopedics Implants, Beijing 100048, China
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18
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Marulanda K, Brokaw D, Gambarian M, Pareta R, McQuilling JP, Opara EC, McLean SE. Controlled Delivery of Slit3 Proteins from Alginate Microbeads Inhibits In Vitro Angiogenesis. J Surg Res 2021; 264:90-98. [PMID: 33794389 DOI: 10.1016/j.jss.2021.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 12/15/2020] [Accepted: 01/25/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND The Slit-Robo pathway is a key regulator of angiogenesis and cellular function in experimental models. Slit3 proteins exhibit both proangiogenic and antiangiogenic properties, but the exact mechanism remains unclear. It is theorized that Slit3 may be a potential treatment for vascular diseases and cancer. METHODS Slit3 labeled with I-125 was encapsulated in microbeads composed of low-viscosity alginate of high-glucuronic acid content, first coated with poly-L-ornithine for various durations and finally with low-viscosity high mannuronic acid. Gamma counter was used to measure microbead encapsulation efficiency and Slit3 release. Markers of angiogenesis were assessed with Boyden chamber, scratch wound, and Matrigel tube formation assays using human umbilical vein and mouse endothelial cells. RESULTS On incubation of Slit3-loaded microbeads, there was an initial burst phase release of Slit3 for the first 24 h followed by sustained release for 6 to 12 d. Microbead composition determined encapsulation efficiency and rate of release; Slit3 encapsulation was most efficient in microbeads with lower low-viscosity alginate of high-glucuronic acid content concentrations (1.5%) and no poly-L-ornithine coating. Compared with controls (media alone), Slit3 microbeads significantly inhibited in vitro cellular migration, endothelial cell migration for wound closure at 24 and 48 h and endothelial tube formation (P < 0.001, respectively). CONCLUSIONS Slit3 can be effectively encapsulated and delivered via a controlled release pattern using alginate microbeads. Microbead encapsulation reduces in vitro endothelial tube formation and inhibits cellular migration to impair angiogenesis. Thus, Slit3 microparticles may be explored as a therapeutic option to mitigate tumor proliferation.
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Affiliation(s)
- Kathleen Marulanda
- Department of Surgery, University of North Carolina, Chapel Hill, North Carolina
| | - Dylan Brokaw
- Department of Surgery, University of North Carolina, Chapel Hill, North Carolina
| | - Maria Gambarian
- Department of Surgery, University of North Carolina, Chapel Hill, North Carolina
| | - Rajesh Pareta
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston Salem, North Carolina
| | - John P McQuilling
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston Salem, North Carolina
| | - Emmanuel C Opara
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston Salem, North Carolina
| | - Sean E McLean
- Department of Surgery, University of North Carolina, Chapel Hill, North Carolina.
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A carboxymethyl lentinan layer by layer self-assembly system as a promising drug chemotherapeutic platform. Carbohydr Polym 2021; 261:117847. [PMID: 33766343 DOI: 10.1016/j.carbpol.2021.117847] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 12/18/2022]
Abstract
Surface functionalization of mesoporous silica nanoparticles (MSNs) has been proposed as an efficient strategy for enhancing the biocompatibility and efficiency of an MSN-based carrier platform. Herein, natural polyelectrolyte multilayers composed of poly-l-ornithine (PLO) and carboxymethyl lentinan (LC) were coated on the surface of MSNs through a layer-by-layer (LbL) self-assembly technique, and were characterized by ζ-potential, FTIR, 13C NMR, SEM, TEM, XRD, and TG. The prepared carrier presented alternating positive and negative potentials when coated with the polyelectrolytes, and the surface of MSN-PLO/LC was rougher compared to the naked MSNs. The biocompatibility tests, including cytocompatibility, hemocompatibility, and histocompatibility, showed that MSNs biocompatibility could be improved by modifying LC. A high loading and sustained release drug delivery system was constructed after loading doxorubicin (DOX) into the prepared MSN-PLO/LC, which exhibited significant anti-proliferative efficiency in human cervical cancer cell lines (Hela). Therefore, the PLO/LC LbL NPs (layer-by-layer self-assembled nanoparticles coated with PLO/LC layers) based on MSNs, which is easily prepared by electrostatic interactions, can be considered a promising drug chemotherapeutic platform and delivery technique for future human cervical cancer therapy.
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Hu C, Lu W, Mata A, Nishinari K, Fang Y. Ions-induced gelation of alginate: Mechanisms and applications. Int J Biol Macromol 2021; 177:578-588. [PMID: 33617905 DOI: 10.1016/j.ijbiomac.2021.02.086] [Citation(s) in RCA: 144] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/05/2021] [Accepted: 02/12/2021] [Indexed: 01/16/2023]
Abstract
Alginate is an important natural biopolymer and has been widely used in the food, biomedical, and chemical industries. Ca2+-induced gelation is one of the most important functional properties of alginate. The gelation mechanism is well-known as egg-box model, which has been intensively studied in the last five decades. Alginate also forms gels with many other monovalent, divalent or trivalent cations, and their gelation can possess different mechanisms from that of Ca2+-induced gelation. The resulted gels also exhibit different properties that lead to various applications. This study is proposed to summarize the gelation mechanisms of alginate induced by different cations, mainly including H+, Ca2+, Ba2+, Cu2+, Sr2+, Zn2+, Fe2+, Mn2+, Al3+, and Fe3+. The mechanism of H+-induced gelation of alginate mainly depends on the protonation of carboxyl groups. Divalent ions-induced gelation of alginate show different selection towards G, M, and GM blocks. Trivalent ions can bind to carboxyl groups of uronates with no selection. The properties and applications of these ionotropic alginate gels are also discussed. The knowledge gained in this study would provide useful information for the practical applications of alginate.
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Affiliation(s)
- Chuhuan Hu
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Wei Lu
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Analucia Mata
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Yapeng Fang
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
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21
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Kim MJ, Park HS, Kim JW, Lee EY, Rhee M, You YH, Khang G, Park CG, Yoon KH. Suppression of Fibrotic Reactions of Chitosan-Alginate Microcapsules Containing Porcine Islets by Dexamethasone Surface Coating. Endocrinol Metab (Seoul) 2021; 36:146-156. [PMID: 33677936 PMCID: PMC7937851 DOI: 10.3803/enm.2021.879] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 11/03/2020] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND The microencapsulation is an ideal solution to overcome immune rejection without immunosuppressive treatment. Poor biocompatibility and small molecular antigens secreted from encapsulated islets induce fibrosis infiltration. Therefore, the aims of this study were to improve the biocompatibility of microcapsules by dexamethasone coating and to verify its effect after xenogeneic transplantation in a streptozotocin-induced diabetes mice. METHODS Dexamethasone 21-phosphate (Dexa) was dissolved in 1% chitosan and was cross-linked with the alginate microcapsule surface. Insulin secretion and viability assays were performed 14 days after microencapsulation. Dexa-containing chitosan-coated alginate (Dexa-chitosan) or alginate microencapsulated porcine islets were transplanted into diabetic mice. The fibrosis infiltration score was calculated from the harvested microcapsules. The harvested microcapsules were stained with trichrome and for insulin and macrophages. RESULTS No significant differences in glucose-stimulated insulin secretion and islet viability were noted among naked, alginate, and Dexa-chitosan microencapsulated islets. After transplantation of microencapsulated porcine islets, nonfasting blood glucose were normalized in both the Dexa-chitosan and alginate groups until 231 days. The average glucose after transplantation were lower in the Dexa-chitosan group than the alginate group. Pericapsular fibrosis and inflammatory cell infiltration of microcapsules were significantly reduced in Dexa-chitosan compared with alginate microcapsules. Dithizone and insulin were positive in Dexa-chitosan capsules. Although fibrosis and macrophage infiltration was noted on the surface, some alginate microcapsules were stained with insulin. CONCLUSION Dexa coating on microcapsules significantly suppressed the fibrotic reaction on the capsule surface after transplantation of xenogenic islets containing microcapsules without any harmful effects on the function and survival of the islets.
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Affiliation(s)
- Min Jung Kim
- Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Heon-Seok Park
- Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji-Won Kim
- Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eun-Young Lee
- Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Marie Rhee
- Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young-Hye You
- Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Gilson Khang
- Department of Polymer Nano Science and Technology, Department of BIN Fusion Technology and BK-21 Polymer BIN Fusion Research Team, Chonbuk National University, Jeonju, Korea
| | - Chung-Gyu Park
- Department of Microbiology and Immunology, Translational Xenotransplantation Research Centre, Cancer Research Institute, Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Kun-Ho Yoon
- Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Endocrinology and Metabolism, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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22
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Hajifathaliha F, Mahboubi A, Bolourchian N, Mohit E, Nematollahi L. Multilayer Alginate Microcapsules For Live Cell Microencapsulation; Is There Any Preference For Selecting Cationic Polymers? IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2021; 20:173-182. [PMID: 34567154 PMCID: PMC8457712 DOI: 10.22037/ijpr.2020.114096.14660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Since 1980 after introducing the concept of live cell encapsulation by Lim et al., this technology has received enormous attention. Several studies have been conducted to improve this technique; different polymers, either natural or synthetic, have been used as microcapsules` making materials and different substances as coating layers. Literature review leads us to the conclusion that alginate (Alg) multilayer microcapsules and, in particular, alginate-poly l-lysine (PLL)-alginate (APA) are the most used structures for live cell encapsulation. Although, disadvantages of PLL (e.g., weak mechanical strength and low biocompatibility) made researchers work on other cationic polymers to find an alternative. This review aims to discuss more popularly suggested cationic polymers such as poly l-ornithine (PLO), chitosan, etc. As alternatives for PLL and, more importantly, we want to take a closer look to see which one of these systems are closer to clinical applications.
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Affiliation(s)
- Fariba Hajifathaliha
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Arash Mahboubi
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Noushin Bolourchian
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Elham Mohit
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Leila Nematollahi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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23
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Fuchs S, Ernst AU, Wang LH, Shariati K, Wang X, Liu Q, Ma M. Hydrogels in Emerging Technologies for Type 1 Diabetes. Chem Rev 2020; 121:11458-11526. [DOI: 10.1021/acs.chemrev.0c01062] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Stephanie Fuchs
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Alexander U. Ernst
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Long-Hai Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Kaavian Shariati
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Xi Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Qingsheng Liu
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Minglin Ma
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
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24
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Sosa RD, Geng X, Agarwal A, Palmer JC, Conrad JC, Reynolds MA, Rimer JD. Acidic Polysaccharides as Green Alternatives for Barite Scale Dissolution. ACS APPLIED MATERIALS & INTERFACES 2020; 12:55434-55443. [PMID: 33233879 DOI: 10.1021/acsami.0c16653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Barium sulfate (barite) scale poses significant challenges for processes ranging from water treatment to fossil fuel production. Here, we identify alginate (a polysaccharide derived from brown algae) as a potent, "green" alternative to commercial barite demineralizing agents. Unlike conventional treatments of inorganic scales that require caustic conditions, alginate polymers dissolve barite at near-neutral conditions. In this study, we benchmark the demineralizing efficacy of alginate against a commercial dissolver, diethylenetriaminepentaacetic acid (DTPA), using a combination of bulk dissolution assays, scanning probe microscopy, and molecular dynamics simulations. Time-resolved rates of dissolution measured in a microfluidic device show that demineralization is enhanced more than an order of magnitude under flow. In situ atomic force microscopy reveals that alginate and DTPA exhibit distinct mechanisms of surface dissolution; and surprisingly, their binary combination in alkaline media results in a synergistic cooperativity that enhances the overall rate of barite dissolution. These studies collectively demonstrate a unique approach to demineralization using an inexpensive and abundant biopolymer that enables environmentally friendly treatment of inorganic scales.
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Affiliation(s)
- Ricardo D Sosa
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Xi Geng
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Ankur Agarwal
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Jeremy C Palmer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Jacinta C Conrad
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Michael A Reynolds
- Shell Exploration and Production Company, Houston, Texas 77079, United States
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
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25
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Somville E, Kumar AA, Guicheux J, Halgand B, Demoustier-Champagne S, des Rieux A, Jonas AM, Glinel K. Green and Tunable Animal Protein-Free Microcarriers for Cell Expansion. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50303-50314. [PMID: 33119274 DOI: 10.1021/acsami.0c16875] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cell culture on microcarriers emerges as an alternative of two-dimensional culture to produce large cell doses, which are required for cell-based therapies. Herein, we report a versatile and easy solvent-free greener fabrication process to prepare microcarriers based on a biosourced and compostable polymer. The preparation of the microcarrier core, which is based on poly(L-lactide) crystallization from a polymer blend, allows us to easily tune the density, porosity, and size of the microparticles. A bioadhesive coating based on biopolymers, devoid of animal protein and optimized to improve cell adhesion, is then successfully deposited on the surface of the microcarriers. The ability of these new microcarriers to expand human adipose-derived stromal cells with good yield, in semistatic and dynamic conditions, is demonstrated. Finally, bead-to-bead cell transfer is shown to increase the yield of cell production without having to stop the culture. These microcarriers are therefore a promising and efficient green alternative to currently existing systems.
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Affiliation(s)
- Eleana Somville
- Institute of Condensed Matter and Nanosciences, Bio and Soft Matter, Universite' catholique de Louvain, Croix du Sud 1, Box L7.04.02, 1348 Louvain-la-Neuve, Belgium
| | - Anitha Ajith Kumar
- Institute of Condensed Matter and Nanosciences, Bio and Soft Matter, Universite' catholique de Louvain, Croix du Sud 1, Box L7.04.02, 1348 Louvain-la-Neuve, Belgium
| | - Jérôme Guicheux
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, 44042 Nantes, France
| | - Boris Halgand
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, 44042 Nantes, France
- Centre Hospitalier Universitaire de Nantes, PHU4 OTONN, 44093 Nantes, France
| | - Sophie Demoustier-Champagne
- Institute of Condensed Matter and Nanosciences, Bio and Soft Matter, Universite' catholique de Louvain, Croix du Sud 1, Box L7.04.02, 1348 Louvain-la-Neuve, Belgium
| | - Anne des Rieux
- Institute of Condensed Matter and Nanosciences, Bio and Soft Matter, Universite' catholique de Louvain, Croix du Sud 1, Box L7.04.02, 1348 Louvain-la-Neuve, Belgium
- Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Université catholique de Louvain, Av. E. Mounier 73, Box B1.73.12, 1200 Brussels, Belgium
| | - Alain M Jonas
- Institute of Condensed Matter and Nanosciences, Bio and Soft Matter, Universite' catholique de Louvain, Croix du Sud 1, Box L7.04.02, 1348 Louvain-la-Neuve, Belgium
| | - Karine Glinel
- Institute of Condensed Matter and Nanosciences, Bio and Soft Matter, Universite' catholique de Louvain, Croix du Sud 1, Box L7.04.02, 1348 Louvain-la-Neuve, Belgium
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26
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Pereira MS, Cardoso LMDF, da Silva TB, Teixeira AJ, Mizrahi SE, Ferreira GSM, Dantas FML, Cotta-de-Almeida V, Alves LA. A Low-Cost Open Source Device for Cell Microencapsulation. MATERIALS 2020; 13:ma13225090. [PMID: 33187294 PMCID: PMC7696579 DOI: 10.3390/ma13225090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/27/2020] [Accepted: 09/01/2020] [Indexed: 11/16/2022]
Abstract
Microencapsulation is a widely studied cell therapy and tissue bioengineering technique, since it is capable of creating an immune-privileged site, protecting encapsulated cells from the host immune system. Several polymers have been tested, but sodium alginate is in widespread use for cell encapsulation applications, due to its low toxicity and easy manipulation. Different cell encapsulation methods have been described in the literature using pressure differences or electrostatic changes with high cost commercial devices (about 30,000 US dollars). Herein, a low-cost device (about 100 US dollars) that can be created by commercial syringes or 3D printer devices has been developed. The capsules, whose diameter is around 500 µm and can decrease or increase according to the pressure applied to the system, is able to maintain cells viable and functional. The hydrogel porosity of the capsule indicates that the immune system is not capable of destroying host cells, demonstrating that new studies can be developed for cell therapy at low cost with microencapsulation production. This device may aid pre-clinical and clinical projects in low- and middle-income countries and is lined up with open source equipment devices.
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Affiliation(s)
- Miriam Salles Pereira
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Manguinhos, Rio de Janeiro 21045-900, Brazil; (M.S.P.); (L.M.d.F.C.); (T.B.d.S.); (A.J.T.)
- Volta Redonda University Center—UniFOA, Av. Paulo Erlei Alves Abrantes, 1325-Três Poços, Volta Redonda 27240-560, Brazil
| | - Liana Monteiro da Fonseca Cardoso
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Manguinhos, Rio de Janeiro 21045-900, Brazil; (M.S.P.); (L.M.d.F.C.); (T.B.d.S.); (A.J.T.)
| | - Tatiane Barreto da Silva
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Manguinhos, Rio de Janeiro 21045-900, Brazil; (M.S.P.); (L.M.d.F.C.); (T.B.d.S.); (A.J.T.)
| | - Ayla Josma Teixeira
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Manguinhos, Rio de Janeiro 21045-900, Brazil; (M.S.P.); (L.M.d.F.C.); (T.B.d.S.); (A.J.T.)
| | - Saul Eliahú Mizrahi
- National Institute of Technology—INT, Rio de Janeiro Av. Venezuela, 82-Saúde, Rio de Janeiro 20081-312, Brazil; (S.E.M.); (G.S.M.F.); (F.M.L.D.)
| | - Gabriel Schonwandt Mendes Ferreira
- National Institute of Technology—INT, Rio de Janeiro Av. Venezuela, 82-Saúde, Rio de Janeiro 20081-312, Brazil; (S.E.M.); (G.S.M.F.); (F.M.L.D.)
| | - Fabio Moyses Lins Dantas
- National Institute of Technology—INT, Rio de Janeiro Av. Venezuela, 82-Saúde, Rio de Janeiro 20081-312, Brazil; (S.E.M.); (G.S.M.F.); (F.M.L.D.)
| | - Vinicius Cotta-de-Almeida
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Manguinhos, Rio de Janeiro 21045-900, Brazil;
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Manguinhos, Rio de Janeiro 21045-900, Brazil
| | - Luiz Anastacio Alves
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, 4365 Manguinhos, Rio de Janeiro 21045-900, Brazil; (M.S.P.); (L.M.d.F.C.); (T.B.d.S.); (A.J.T.)
- Correspondence: ; Tel.: +55-21-2562-1841; Fax: +55-21-2562-1816
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27
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Kupikowska-Stobba B, Lewińska D. Polymer microcapsules and microbeads as cell carriers for in vivo biomedical applications. Biomater Sci 2020; 8:1536-1574. [PMID: 32110789 DOI: 10.1039/c9bm01337g] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Polymer microcarriers are being extensively explored as cell delivery vehicles in cell-based therapies and hybrid tissue and organ engineering. Spherical microcarriers are of particular interest due to easy fabrication and injectability. They include microbeads, composed of a porous matrix, and microcapsules, where matrix core is additionally covered with a semipermeable membrane. Microcarriers provide cell containment at implantation site and protect the cells from host immunoresponse, degradation and shear stress. Immobilized cells may be genetically altered to release a specific therapeutic product directly at the target site, eliminating side effects of systemic therapies. Cell microcarriers need to fulfil a number of extremely high standards regarding their biocompatibility, cytocompatibility, immunoisolating capacity, transport, mechanical and chemical properties. To obtain cell microcarriers of specified parameters, a wide variety of polymers, both natural and synthetic, and immobilization methods can be applied. Yet so far, only a few approaches based on cell-laden microcarriers have reached clinical trials. The main issue that still impedes progress of these systems towards clinical application is limited cell survival in vivo. Herein, we review polymer biomaterials and methods used for fabrication of cell microcarriers for in vivo biomedical applications. We describe their key limitations and modifications aiming at improvement of microcarrier in vivo performance. We also present the main applications of polymer cell microcarriers in regenerative medicine, pancreatic islet and hepatocyte transplantation and in the treatment of cancer. Lastly, we outline the main challenges in cell microimmobilization for biomedical purposes, the strategies to overcome these issues and potential future improvements in this area.
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Affiliation(s)
- Barbara Kupikowska-Stobba
- Laboratory of Electrostatic Methods of Bioencapsulation, Department of Biomaterials and Biotechnological Systems, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland.
| | - Dorota Lewińska
- Laboratory of Electrostatic Methods of Bioencapsulation, Department of Biomaterials and Biotechnological Systems, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland.
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28
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Pasqua M, Pereira U, de Lartigue C, Nicolas J, Vigneron P, Dermigny Q, Legallais C. Preclinical characterization of alginate-poly-L-lysine encapsulated HepaRG for extracorporeal liver supply. Biotechnol Bioeng 2020; 118:453-464. [PMID: 32997339 DOI: 10.1002/bit.27583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 09/15/2020] [Accepted: 09/26/2020] [Indexed: 12/26/2022]
Abstract
We recently demonstrated that HepaRG cells encapsulated into 1.5% alginate beads are capable of self-assembling into spheroids. They adequately differentiate into hepatocyte-like cells, with hepatic features observed at Day 14 post-encapsulation required for external bioartificial liver applications. Preliminary investigations performed within a bioreactor under shear stress conditions and using a culture medium mimicking acute liver failure (ALF) highlighted the need to reinforce beads with a polymer coating. We demonstrated in a first step that a poly-l-lysine coating improved the mechanical stability, without altering the metabolic activities necessary for bioartificial liver applications (such as ammonia and lactate elimination). In a second step, we tested the optimized biomass in a newly designed perfused dynamic bioreactor, in the presence of the medium model for pathological plasma for 6 h. Performances of the biomass were enhanced as compared to the steady configuration, demonstrating its efficacy in decreasing the typical toxins of ALF. This type of bioreactor is easy to scale up as it relies on the number of micro-encapsulated cells, and could provide an adequate hepatic biomass for liver supply. Its design allows it to be integrated into a hybrid artificial/bioartificial liver setup for further clinical studies regarding its impact on ALF animal models.
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Affiliation(s)
- Mattia Pasqua
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Ulysse Pereira
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Claire de Lartigue
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Jonathan Nicolas
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Pascale Vigneron
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Quentin Dermigny
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Cécile Legallais
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France.,DHU Hépatinov, Villejuif, France
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29
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Szabó L, Noverraz F, Gerber‐Lemaire S. Multicomponent Alginate‐Derived Hydrogel Microspheres Presenting Hybrid Ionic‐Covalent Network and Drug Eluting Properties. Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Luca Szabó
- Institute of Chemical Sciences and Engineering, Group for Functionalized Biomaterials Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC SCI-SB-SG Station 6 CH-1015 Lausanne Switzerland
| | - François Noverraz
- Institute of Chemical Sciences and Engineering, Group for Functionalized Biomaterials Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC SCI-SB-SG Station 6 CH-1015 Lausanne Switzerland
| | - Sandrine Gerber‐Lemaire
- Institute of Chemical Sciences and Engineering, Group for Functionalized Biomaterials Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC SCI-SB-SG Station 6 CH-1015 Lausanne Switzerland
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30
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Gattás-Asfura KM, Abuid NJ, Labrada I, Stabler CL. Promoting Dendrimer Self-Assembly Enhances Covalent Layer-by-Layer Encapsulation of Pancreatic Islets. ACS Biomater Sci Eng 2020; 6:2641-2651. [PMID: 32587885 PMCID: PMC7316358 DOI: 10.1021/acsbiomaterials.9b01033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
For type 1 diabetics, islet transplantation can induce beneficial outcomes, including insulin independence and improved glycemic control. The long-term function of the grafted tissue, however, is challenged by host inflammatory and immune responses. Cell encapsulation can decrease detrimental host responses to the foreign implant, but standard microencapsulation imparts large transplant volumes and impaired metabolite and nutrient diffusion. To mitigate these effects, we developed an efficient covalent Layer-by-Layer (cLbL) approach for live-cell nanoencapsulation, based on oppositely charged hyperbranched polymers functionalized with complementary Staudinger ligation groups. Reliance on cationic polymers for cLbL, however, is problematic due to their poor biocompatibility. Herein, we incorporated the additional feature of supramolecular self-assembly of the dendritic polymers to enhance layer uniformity and decrease net polymer charge. Functionalization of poly (amino amide) (PAMAM) with triethoxysilane decreased polymer charge without compromising the uniformity and stability of resulting nanoscale islet coatings. Encapsulated pancreatic rat islets were viable and functional. The implantation of cLbL islets into diabetic mice resulted in stable normoglycemia, at equivalent dosage and efficiency as uncoated islets, with no observable alterations in cellular engraftment or foreign body responses. By balancing multi-functionality and self-assembly, nano-scale and stable covalent layer-by-layer polymeric coatings could be efficiently generated onto cellular organoids, presenting a highly adaptable platform for broad use in cellular transplantation.
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Affiliation(s)
- KM Gattás-Asfura
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - NJ Abuid
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - I Labrada
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - CL Stabler
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
- Interdisciplinary Program in Biomedical Sciences, University of Florida, Gainesville, FL, USA
- University of Florida Diabetes Institute, Gainesville, FL, USA
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31
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Wiggins SC, Abuid NJ, Gattás-Asfura KM, Kar S, Stabler CL. Nanotechnology Approaches to Modulate Immune Responses to Cell-based Therapies for Type 1 Diabetes. J Diabetes Sci Technol 2020; 14:212-225. [PMID: 32116026 PMCID: PMC7196865 DOI: 10.1177/1932296819871947] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Islet transplantation is a promising curative treatment option for type 1 diabetes (T1D) as it can provide physiological blood glucose control. The widespread utilization of islet transplantation is limited due to systemic immunosuppression requirements, persisting graft immunodestruction, and poor islet engraftment. Traditional macro- and micropolymeric encapsulation strategies can alleviate the need for antirejection immunosuppression, yet the increased graft volume and diffusional distances imparted by these coatings can be detrimental to graft viability and glucose control. Additionally, systemic administration of pro-engraftment and antirejection therapeutics leaves patients vulnerable to adverse off-target side effects. Nanoscale engineering techniques can be used to immunocamouflage islets, modulate the transplant microenvironment, and provide localized pro-engraftment cues. In this review, we discuss the applications of nanotechnology to advance the clinical potential of islet transplantation, with a focus on cell surface engineering, bioactive functionalization, and use of nanoparticles in T1D cell-based treatments.
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Affiliation(s)
- Sydney C. Wiggins
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Nicholas J. Abuid
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Kerim M. Gattás-Asfura
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Saumadritaa Kar
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Cherie L. Stabler
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
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32
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Kuncorojakti S, Srisuwatanasagul S, Kradangnga K, Sawangmake C. Insulin-Producing Cell Transplantation Platform for Veterinary Practice. Front Vet Sci 2020; 7:4. [PMID: 32118053 PMCID: PMC7028771 DOI: 10.3389/fvets.2020.00004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/06/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus (DM) remains a global concern in both human and veterinary medicine. Type I DM requires prolonged and consistent exogenous insulin administration to address hyperglycemia, which can increase the risk of diabetes complications such as retinopathy, nephropathy, neuropathy, and heart disorders. Cell-based therapies have been successful in human medicine using the Edmonton protocol. These therapies help maintain the production of endogenous insulin and stabilize blood glucose levels and may possibly be adapted to veterinary clinical practice. The limited number of cadaveric pancreas donors and the long-term use of immunosuppressive agents are the main obstacles for this protocol. Over the past decade, the development of potential therapies for DM has mainly focused on the generation of effective insulin-producing cells (IPCs) from various sources of stem cells that can be transplanted into the body. Another successful application of stem cells in type I DM therapies is transplanting generated IPCs. Encapsulation can be an alternative strategy to protect IPCs from rejection by the body due to their immunoisolation properties. This review summarizes current concepts of IPCs and encapsulation technology for veterinary clinical application and proposes a potential stem-cell-based platform for veterinary diabetic regenerative therapy.
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Affiliation(s)
- Suryo Kuncorojakti
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Sayamon Srisuwatanasagul
- Department of Anatomy, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Krishaporn Kradangnga
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Chenphop Sawangmake
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Pharmacology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
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33
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Virumbrales-Muñoz M, Santos-Vizcaino E, Paz L, Gallardo-Moreno AM, Orive G, Hernandez RM, Doblaré M, Gonzalez-Martin ML, Fernández LJ, Pedraz JL, Ochoa I. Force spectroscopy-based simultaneous topographical and mechanical characterization to study polymer-to-polymer interactions in coated alginate microspheres. Sci Rep 2019; 9:20112. [PMID: 31882828 PMCID: PMC6934587 DOI: 10.1038/s41598-019-56547-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/04/2019] [Indexed: 12/12/2022] Open
Abstract
Cell-laden hydrogel microspheres have shown encouraging outcomes in the fields of drug delivery, tissue engineering or regenerative medicine. Beyond the classical single coating with polycations, many other different coating designs have been reported with the aim of improving mechanical properties and in vivo performance of the microspheres. Among the most common strategies are the inclusion of additional polycation coatings and the covalent bonding of the semi-permeable membranes with biocompatible crosslinkers such as genipin. However, it remains challenging to characterize the effects of the interactions between the polycations and the hydrogel microspheres over time in vitro. Here we use a force spectroscopy-based simultaneous topographical and mechanical characterization to study polymer-to-polymer interactions in alginate microspheres with different coating designs, maintaining the hydrogels in liquid. In addition to classical topography parameters, we explored, for the first time, the evolution of peak/valley features along the z axis via thresholding analysis and the cross-correlation between topography and stiffness profiles with resolution down to tens of nanometers. Thus, we demonstrated the importance of genipin crosslinking to avoid membrane detachment in alginate microspheres with double polycation coatings. Overall, this methodology could improve hydrogel design rationale and expedite in vitro characterization, therefore facilitating clinical translation of hydrogel-based technologies.
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Affiliation(s)
| | - Edorta Santos-Vizcaino
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Laura Paz
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
- Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
- Applied Mechanics and Bioengineering Group (AMB), University of Zaragoza, Zaragoza, Spain
| | - Amparo Maria Gallardo-Moreno
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Applied Physics, University of Extremadura, Badajoz, Spain
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
- University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore
| | - Rosa Maria Hernandez
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Manuel Doblaré
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
- Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
- Applied Mechanics and Bioengineering Group (AMB), University of Zaragoza, Zaragoza, Spain
| | - Maria Luisa Gonzalez-Martin
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Applied Physics, University of Extremadura, Badajoz, Spain
| | - Luis Jose Fernández
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain.
- Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.
- Applied Mechanics and Bioengineering Group (AMB), University of Zaragoza, Zaragoza, Spain.
| | - Jose Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain.
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Ignacio Ochoa
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain.
- Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.
- Applied Mechanics and Bioengineering Group (AMB), University of Zaragoza, Zaragoza, Spain.
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Khodabakhsh Aghdam S, Khoshfetrat AB, Rahbarghazi R, Jafarizadeh-Malmiri H, Khaksar M. Collagen modulates functional activity of hepatic cells inside alginate-galactosylated chitosan hydrogel microcapsules. Int J Biol Macromol 2019; 156:1270-1278. [PMID: 31760032 DOI: 10.1016/j.ijbiomac.2019.11.164] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/12/2019] [Accepted: 11/19/2019] [Indexed: 02/07/2023]
Abstract
To provide comparable hepatic tissue microenvironment and induce functional behavior for hepatocytes, galctosylated-chitosan (GC) as well as collagen (Col) was added to alginate microcapsule coated with extra layer of chitosan. Four different hydrogel groups of alginate/chitosan (AC); alginate-galactosylated chitosan/chitosan (AGC/C); alginate-collagen/chitosan (ACol/C); and alginate-galactosylated chitosan-collagen/chitosan (AGCCol/C) were prepared and characterized for physical properties such as porosity, swelling, degradation rate, and stiffness. Introduction of GC as well as Col to alginate regulated significantly the physical properties of the resultant hydrogels. GC addition decreased dramatically swelling, degradation, pore size and mechanical properties of the resultant hydrogel. However, the influence of GC on the physical properties in the presence of Col (AGCCol/A) was in a reverse manner, as compared to the AGC/C hydrogel. The AGCCol/C microenvironment also promoted proliferation of microencapsulated HepG2 cells, as a model of hepatocyte, compared to the control-matched groups. Biochemical analysis after 10 days revealed a superior effect of AGCCol/C on the secretion of albumin and urea compared to other groups (P < 0.05). These features were coincided with the mRNA up-regulation of P450 and albumin in the AGCCol/C groups compared to the AGC/C and ACol/C groups (P < 0.05). The study demonstrated that enrichment of alginate-based hydrogels with Col and GC could be touted as an appropriate 3D platform for modular hepatic tissue engineering.
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Affiliation(s)
- Shahla Khodabakhsh Aghdam
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz 51335-1996, Iran; Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz 51335-1996, Iran
| | - Ali Baradar Khoshfetrat
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz 51335-1996, Iran; Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz 51335-1996, Iran.
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Majid Khaksar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Liu Q, Chiu A, Wang LH, An D, Zhong M, Smink AM, de Haan BJ, de Vos P, Keane K, Vegge A, Chen EY, Song W, Liu WF, Flanders J, Rescan C, Grunnet LG, Wang X, Ma M. Zwitterionically modified alginates mitigate cellular overgrowth for cell encapsulation. Nat Commun 2019; 10:5262. [PMID: 31748525 PMCID: PMC6868136 DOI: 10.1038/s41467-019-13238-7] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 10/30/2019] [Indexed: 01/16/2023] Open
Abstract
Foreign body reaction (FBR) to implanted biomaterials and medical devices is common and can compromise the function of implants or cause complications. For example, in cell encapsulation, cellular overgrowth (CO) and fibrosis around the cellular constructs can reduce the mass transfer of oxygen, nutrients and metabolic wastes, undermining cell function and leading to transplant failure. Therefore, materials that mitigate FBR or CO will have broad applications in biomedicine. Here we report a group of zwitterionic, sulfobetaine (SB) and carboxybetaine (CB) modifications of alginates that reproducibly mitigate the CO of implanted alginate microcapsules in mice, dogs and pigs. Using the modified alginates (SB-alginates), we also demonstrate improved outcome of islet encapsulation in a chemically-induced diabetic mouse model. These zwitterion-modified alginates may contribute to the development of cell encapsulation therapies for type 1 diabetes and other hormone-deficient diseases.
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Affiliation(s)
- Qingsheng Liu
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Alan Chiu
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Long-Hai Wang
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Duo An
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Monica Zhong
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Alexandra M Smink
- Department of Pathology and Medical Biology, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Bart J de Haan
- Department of Pathology and Medical Biology, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Paul de Vos
- Department of Pathology and Medical Biology, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Kevin Keane
- Stem Cell Biology, Novo Nordisk A/S, 2760, Måløv, Denmark
| | - Andreas Vegge
- Diabetes Research, Novo Nordisk A/S, 2760, Måløv, Denmark
| | - Esther Y Chen
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, 92697, USA
| | - Wei Song
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Wendy F Liu
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, 92697, USA
| | - James Flanders
- Department of Clinical Sciences, Cornell University, Ithaca, NY, 14853, USA
| | - Claude Rescan
- Stem Cell Pharmacology, Novo Nordisk A/S, 2760, Måløv, Denmark
| | | | - Xi Wang
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA.
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36
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Petrova VA, Elokhovskiy VY, Raik SV, Poshina DN, Romanov DP, Skorik YA. Alginate Gel Reinforcement with Chitin Nanowhiskers Modulates Rheological Properties and Drug Release Profile. Biomolecules 2019; 9:E291. [PMID: 31331095 PMCID: PMC6680783 DOI: 10.3390/biom9070291] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/17/2019] [Accepted: 07/18/2019] [Indexed: 01/15/2023] Open
Abstract
Hydrogels are promising materials for various applications, including drug delivery, tissue engineering, and wastewater treatment. In this work, we designed an alginate (ALG) hydrogel containing partially deacetylated chitin nanowhiskers (CNW) as a filler. Gelation in the system occurred by both the protonation of alginic acid and the formation of a polyelectrolyte complex with deacetylated CNW surface chains. Morphological changes in the gel manifested as a honeycomb structure in the freeze-dried gel, unlike the layered structure of an ALG gel. Disturbance of the structural orientation of the gels by the introduction of CNW was also expressed as a decrease in the intensity of X-ray diffraction reflexes. All studied systems were non-Newtonian liquids that violated the Cox-Merz rule. An increase in the content of CNW in the ALG-CNW hydrogel resulted in increases in the yield stress, maximum Newtonian viscosity, and relaxation time. Inclusion of CNW prolonged the release of tetracycline due to changes in diffusion. The first phases (0-5 h) of the release profiles were well described by the Higuchi model. ALG-CNW hydrogels may be of interest as soft gels for controlled topical or intestinal drug delivery.
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Affiliation(s)
- Valentina A Petrova
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, St Petersburg 199004, Russia
| | - Vladimir Y Elokhovskiy
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, St Petersburg 199004, Russia
| | - Sergei V Raik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, St Petersburg 199004, Russia
| | - Daria N Poshina
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, St Petersburg 199004, Russia
| | - Dmitry P Romanov
- Institute of Silicate Chemistry of the Russian Academy of Sciences, Adm. Makarova emb. 2, St. Petersburg 199034, Russia
| | - Yury A Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, St Petersburg 199004, Russia.
- Almazov National Medical Research Centre, Akkuratova str. 2., St. Petersburg 197341, Russia.
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37
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Orive G, Santos-Vizcaino E, Pedraz JL, Hernandez RM, Vela Ramirez JE, Dolatshahi-Pirouz A, Khademhosseini A, Peppas NA, Emerich DF. 3D cell-laden polymers to release bioactive products in the eye. Prog Retin Eye Res 2019; 68:67-82. [DOI: 10.1016/j.preteyeres.2018.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 10/02/2018] [Accepted: 10/09/2018] [Indexed: 12/16/2022]
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39
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Ciriza J, Saenz Del Burgo L, Gurruchaga H, Borras FE, Franquesa M, Orive G, Hernández RM, Pedraz JL. Graphene oxide enhances alginate encapsulated cells viability and functionality while not affecting the foreign body response. Drug Deliv 2018; 25:1147-1160. [PMID: 29781340 PMCID: PMC6058697 DOI: 10.1080/10717544.2018.1474966] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/04/2018] [Accepted: 05/07/2018] [Indexed: 12/14/2022] Open
Abstract
The combination of protein-coated graphene oxide (GO) and microencapsulation technology has moved a step forward in the challenge of improving long-term alginate encapsulated cell survival and sustainable therapeutic protein release, bringing closer its translation from bench to the clinic. Although this new approach in cell microencapsulation represents a great promise for long-term drug delivery, previous studies have been performed only with encapsulated murine C2C12 myoblasts genetically engineered to secrete murine erythropoietin (C2C12-EPO) within 160 µm diameter hybrid alginate protein-coated GO microcapsules implanted into syngeneic mice. Here, we show that encapsulated C2C12-EPO myoblasts survive longer and release more therapeutic protein by doubling the micron diameter of hybrid alginate-protein-coated GO microcapsules to 380 µm range. Encapsulated mesenchymal stem cells (MSC) genetically modified to secrete erythropoietin (D1-MSCs-EPO) within 380 µm-diameter hybrid alginate-protein-coated GO microcapsules confirmed this improvement in survival and sustained protein release in vitro. This improved behavior is reflected in the hematocrit increase of allogeneic mice implanted with both encapsulated cell types within 380 µm diameter hybrid alginate-protein-coated GO microcapsules, showing lower immune response with encapsulated MSCs. These results provide a new relevant step for the future clinical application of protein-coated GO on cell microencapsulation.
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Affiliation(s)
- Jesús Ciriza
- a Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine , CIBER-BBN , Vitoria-Gasteiz , Spain
- b NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy , University of the Basque Country, UPV/EHU , Vitoria-Gasteiz , Spain
| | - Laura Saenz Del Burgo
- a Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine , CIBER-BBN , Vitoria-Gasteiz , Spain
- b NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy , University of the Basque Country, UPV/EHU , Vitoria-Gasteiz , Spain
| | - Haritz Gurruchaga
- a Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine , CIBER-BBN , Vitoria-Gasteiz , Spain
- b NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy , University of the Basque Country, UPV/EHU , Vitoria-Gasteiz , Spain
| | - Francesc E Borras
- c REMAR-IVECAT Group, Health Science Research Institute Germans Trias i Pujol , Badalona , Spain
- d Department of Cell Biology, Physiology and Immunology , Universitat Autònoma de Barcelona , Bellaterra , Spain
- e Nephrology Service, Germans Trias i Pujol University Hospital , Badalona , Spain
| | - Marcella Franquesa
- c REMAR-IVECAT Group, Health Science Research Institute Germans Trias i Pujol , Badalona , Spain
- e Nephrology Service, Germans Trias i Pujol University Hospital , Badalona , Spain
| | - Gorka Orive
- a Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine , CIBER-BBN , Vitoria-Gasteiz , Spain
- b NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy , University of the Basque Country, UPV/EHU , Vitoria-Gasteiz , Spain
| | - Rosa Maria Hernández
- a Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine , CIBER-BBN , Vitoria-Gasteiz , Spain
- b NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy , University of the Basque Country, UPV/EHU , Vitoria-Gasteiz , Spain
| | - José Luis Pedraz
- a Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine , CIBER-BBN , Vitoria-Gasteiz , Spain
- b NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy , University of the Basque Country, UPV/EHU , Vitoria-Gasteiz , Spain
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40
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Wang P, Kankala RK, Fan J, Long R, Liu Y, Wang S. Poly-L-ornithine/fucoidan-coated calcium carbonate microparticles by layer-by-layer self-assembly technique for cancer theranostics. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:68. [PMID: 29748879 DOI: 10.1007/s10856-018-6075-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
Recently, the layer-by-layer (LbL) self-assembly technology has attracted the enormous interest of researchers in synthesizing various pharmaceutical dosage forms. Herewith, we designed a biocompatible drug delivery system containing the calcium carbonate microparticles (CaCO3 MPs) that coated with the alternatively charged polyelectrolytes, i.e., poly-L-ornithine (PLO)/fucoidan by LbL self-assembly process (LbL MPs). Upon coating with the polyelectrolytes, the mean particle size of MPs obtained from SEM observations increased from 1.91 to 2.03 μm, and the surface of LbL MPs was smoothened compared to naked CaCO3 MPs. In addition, the reversible zeta potential changes have confirmed the accomplishment of layer upon a layer assembly. To evaluate the efficiency of cancer therapeutics, we loaded doxorubicin (Dox) in the LbL MPs, which resulted in high (69.7%) drug encapsulation efficiency. The controlled release of Dox resulted in the significant antiproliferative efficiency in breast cancer cell line (MCF-7 cells), demonstrating the potential of applying this innovative drug delivery system in the biomedical field.
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Affiliation(s)
- Pei Wang
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Ranjith Kumar Kankala
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, 361021, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, China
| | - Jingqian Fan
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
| | - Ruimin Long
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, 361021, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, China
| | - Yuangang Liu
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, 361021, China.
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, China.
| | - Shibin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China.
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, 361021, China.
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, China.
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Ramos PE, Silva P, Alario MM, Pastrana LM, Teixeira JA, Cerqueira MA, Vicente AA. Effect of alginate molecular weight and M/G ratio in beads properties foreseeing the protection of probiotics. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.08.031] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Li J, Zou J, Xiao H, He B, Hou X, Qian L. Preparation of Novel Nano-Sized Hydrogel Microcapsules via Layer-By-Layer Assembly as Delivery Vehicles for Drugs onto Hygiene Paper. Polymers (Basel) 2018; 10:E335. [PMID: 30966370 PMCID: PMC6414901 DOI: 10.3390/polym10030335] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/27/2018] [Accepted: 03/15/2018] [Indexed: 01/07/2023] Open
Abstract
Hydrogel microcapsules are improved transplantation delivery vehicles for pharmaceuticals by effectively segregating the active ingredients from the surroundings and delivering them to a certain target site. Layer-by-layer (LbL) assembly is an attractive process to fabricate the nano-sized hydrogel microcapsules. In this study, nano-sized hydrogel microcapsules were prepared through LbL assembly using calcium carbonate nanoparticles (CaCO₃ NPs) as the sacrificial inorganic template, sodium alginate (SA) and polyethyleneimine (PEI) as the shell materials. Ciprofloxacin was used to study the encapsulation and release properties of the hydrogel microcapsules. The hydrogel microcapsules were further adsorbed onto the paper to render antimicrobial properties. The results showed that the mean size of the CaCO₃ template was reduced after dispersing into sodium n-dodecyl sulfate (SDS) solution under sonication. Transmission electron microscope (TEM) and atomic force microscope (AFM) revealed that some hydrogel microcapsules had a diameter under 200 nm, typical creases and collapses were found on the surface. The nano-sized PEI/SA hydrogel microcapsules showed high loading capacity of ciprofloxacin and a sustained release. PEI/SA hydrogel microcapsules rendered good antimicrobial properties onto the paper by the adsorption of hydrogel microcapsules, however, the mechanical properties of the hygiene paper were decreased.
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Affiliation(s)
- Junrong Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jing Zou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
| | - Beihai He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Xiaobang Hou
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
- Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China.
| | - Liying Qian
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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Immunoisolation of stem cells by simultaneous encapsulation and PEGylation. Prog Biomater 2018; 7:55-60. [PMID: 29460181 PMCID: PMC5823811 DOI: 10.1007/s40204-018-0084-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 02/06/2018] [Indexed: 12/19/2022] Open
Abstract
Today, cell therapy is known as an important tool in the treatment of chronic diseases where cells lose their normal function. Immunoisolation systems using microencapsulation or PEGylation have been developed to evade the problem of rejection by the immune system. The aim of the present study was to investigate a combination of microencapsulation and PEGylation methods in coating mouse embryonic stem cells (mESCs) to determine its effect in reducing the host’s immune response. Therefore, methoxy polyethylene glycol (mPEG) binding on alginate–trimethyl chitosan (TMC) microcapsules was investigated using FTIR. Furthermore, survival of the microencapsulated mESCs was confirmed using AO/PI staining and MTT assays. In addition, the effect of mESCs co-cultured with foreign lymphocytes was evaluated. Overall, interleukin-2 (IL-2) secretions as a response of the immune system revealed that mESCs microencapsulation in alginate–TMC–PEG, reduced the immune system response. The results suggested that IL-2 secretion was reduced to 62% at seventh day.
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44
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Orive G, Emerich D, Khademhosseini A, Matsumoto S, Hernández RM, Pedraz JL, Desai T, Calafiore R, de Vos P. Engineering a Clinically Translatable Bioartificial Pancreas to Treat Type I Diabetes. Trends Biotechnol 2018; 36:445-456. [PMID: 29455936 DOI: 10.1016/j.tibtech.2018.01.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/11/2018] [Accepted: 01/16/2018] [Indexed: 02/06/2023]
Abstract
Encapsulating, or immunoisolating, insulin-secreting cells within implantable, semipermeable membranes is an emerging treatment for type 1 diabetes. This approach can eliminate the need for immunosuppressive drug treatments to prevent transplant rejection and overcome the shortage of donor tissues by utilizing cells derived from allogeneic or xenogeneic sources. Encapsulation device designs are being optimized alongside the development of clinically viable, replenishable, insulin-producing stem cells, for the first time creating the possibility of widespread therapeutic use of this technology. Here, we highlight the status of the most advanced and widely explored implementations of cell encapsulation with an eye toward translating the potential of this technological approach to medical reality.
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Affiliation(s)
- Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain; University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain; BTI Biotechnology Institute, Vitoria, Spain; Joint first authors and contributed equally to the paper.
| | - Dwaine Emerich
- NsGene,225 Chapman Street, Providence, RI, USA; Joint first authors and contributed equally to the paper
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, USA; Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA; Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, USA; California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA, USA. http://twitter.com/@khademh
| | - Shinichi Matsumoto
- Research and Development Center, Otsuka Pharmaceutical Factory, 115 Kuguhara, Tateiwa, Muya-cho, Naruto, Tokushima 772-8601, Japan
| | - R M Hernández
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - J L Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - Tejal Desai
- University of California, San Francisco, Department of Bioengineering and Therapeutic Sciences, Byers Hall Room 203C, MC 2520, 1700 4th Street, San Francisco, CA, USA
| | - Riccardo Calafiore
- Department of Medicine, Section of Cardiovascular, Endocrine and Metabolic Clinical Physiology, Laboratory for Endocrine Cell Transplants and Biohybrid Organs, University of Perugia, Piazzale Gambuli, Perugia, Italy; Joint first authors and contributed equally to the paper
| | - Paul de Vos
- University of Groningen, Pathology and Medical Biology Section, Immunoendocrinology, Groningen, The Netherlands.
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Gonzalez-Pujana A, Orive G, Pedraz JL, Santos-Vizcaino E, Hernandez RM. Alginate Microcapsules for Drug Delivery. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2018. [DOI: 10.1007/978-981-10-6910-9_3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Abstract
The principle of immunoisolation of cells is based on encapsulation of cells in immunoprotective but semipermeable membranes that protect cells from hazardous effects of the host immune system but allows ingress of nutrients and outgress of therapeutic molecules. The technology was introduced in 1933 but has only received its deserved attention for its therapeutic application for three decades now.In the past decade important advances have been made in creating capsules that provoke minimal or no inflammatory responses. There are however new emerging challenges. These challenges relate to optimal nutrition and oxygen supply as well as standardization and documentation of capsule properties.It is concluded that the proof of principle of applicability of encapsulated grafts for treatment of human disease has been demonstrated and merits optimism about its clinical potential. Further innovation requires a much more systematic approach in identifying crucial properties of capsules and cellular grafts to allow sound interpretations of the results.
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Affiliation(s)
- Paul de Vos
- Division of Immuno-Endocrinology, Departments of Pathology and Laboratory Medicine, University of Groningen, Groningen, Groningen, The Netherlands.
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Krishnan R, Ko D, Foster CE, Liu W, Smink AM, de Haan B, De Vos P, Lakey JRT. Immunological Challenges Facing Translation of Alginate Encapsulated Porcine Islet Xenotransplantation to Human Clinical Trials. Methods Mol Biol 2017; 1479:305-333. [PMID: 27738946 DOI: 10.1007/978-1-4939-6364-5_24] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Transplantation of alginate-encapsulated islets has the potential to treat patients suffering from type I diabetes, a condition characterized by an autoimmune attack against insulin-secreting beta cells. However, there are multiple immunological challenges associated with this procedure, all of which must be adequately addressed prior to translation from trials in small animal and nonhuman primate models to human clinical trials. Principal threats to graft viability include immune-mediated destruction triggered by immunogenic alginate impurities, unfavorable polymer composition and surface characteristics, and release of membrane-permeable antigens, as well as damage associated molecular patterns (DAMPs) by the encapsulated islets themselves. The lack of standardization of significant parameters of bioencapsulation device design and manufacture (i.e., purification protocols, surface-modification grafting techniques, alginate composition modifications) between labs is yet another obstacle that must be overcome before a clinically effective and applicable protocol for encapsulating islets can be implemented. Nonetheless, substantial progress is being made, as is evident from prolonged graft survival times and improved protection from immune-mediated graft destruction reported by various research groups, but also with regard to discoveries of specific pathways involved in explaining observed outcomes. Progress in the latter is essential for a comprehensive understanding of the mechanisms responsible for the varying levels of immunogenicity of certain alginate devices. Successful translation of encapsulated islet transplantation from in vitro and animal model testing to human clinical trials hinges on application of this knowledge of the pathways and interactions which comprise immune-mediated rejection. Thus, this review not only focuses on the different factors contributing to provocation of the immune reaction by encapsulated islets, but also on the defining characteristics of the response itself.
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Affiliation(s)
- Rahul Krishnan
- Department of Surgery, University of California Irvine, 333 City Blvd West, Suite 1600, Orange, CA, 92868, USA
| | - David Ko
- Department of Surgery, University of California Irvine, 333 City Blvd West, Suite 1600, Orange, CA, 92868, USA
| | - Clarence E Foster
- Department of Surgery, University of California Irvine, 333 City Blvd West, Suite 1600, Orange, CA, 92868, USA.,Department of Transplantation, University of California Irvine, Orange, CA, USA
| | - Wendy Liu
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA
| | - A M Smink
- Division of Immuno-Endocrinology, Departments of Pathology and Laboratory Medicine, University of Groningen, Groningen, The Netherlands
| | - Bart de Haan
- Division of Immuno-Endocrinology, Departments of Pathology and Laboratory Medicine, University of Groningen, Groningen, The Netherlands
| | - Paul De Vos
- Division of Immuno-Endocrinology, Departments of Pathology and Laboratory Medicine, University of Groningen, Groningen, The Netherlands
| | - Jonathan R T Lakey
- Department of Surgery, University of California Irvine, 333 City Blvd West, Suite 1600, Orange, CA, 92868, USA. .,Department of Transplantation, University of California Irvine, Orange, CA, USA. .,Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA.
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48
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Gonzalez-Pujana A, Santos E, Orive G, Pedraz JL, Hernandez RM. Cell microencapsulation technology: Current vision of its therapeutic potential through the administration routes. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.03.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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49
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Vaithilingam V, Steinkjer B, Ryan L, Larsson R, Tuch BE, Oberholzer J, Rokstad AM. In Vitro and In Vivo Biocompatibility Evaluation of Polyallylamine and Macromolecular Heparin Conjugates Modified Alginate Microbeads. Sci Rep 2017; 7:11695. [PMID: 28916826 PMCID: PMC5600981 DOI: 10.1038/s41598-017-11989-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 08/29/2017] [Indexed: 11/09/2022] Open
Abstract
Host reactivity to biocompatible immunoisolation devices is a major challenge for cellular therapies, and a human screening model would be of great value. We designed new types of surface modified barium alginate microspheres, and evaluated their inflammatory properties using human whole blood, and the intraperitoneal response after three weeks in Wistar rats. Microspheres were modified using proprietary polyallylamine (PAV) and coupled with macromolecular heparin conjugates (Corline Heparin Conjugate, CHC). The PAV-CHC strategy resulted in uniform and stable coatings with increased anti-clot activity and low cytotoxicity. In human whole blood, PAV coating at high dose (100 µg/ml) induced elevated complement, leukocyte CD11b and inflammatory mediators, and in Wistar rats increased fibrotic overgrowth. Coating of high dose PAV with CHC significantly reduced these responses. Low dose PAV (10 µg/ml) ± CHC and unmodified alginate microbeads showed low responses. That the human whole blood inflammatory reactions paralleled the host response shows a link between inflammatory potential and initial fibrotic response. CHC possessed anti-inflammatory activity, but failed to improve overall biocompatibility. We conclude that the human whole blood assay is an efficient first-phase screening model for inflammation, and a guiding tool in development of new generation microspheres for cell encapsulation therapy.
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Affiliation(s)
- Vijayaganapathy Vaithilingam
- Materials Science and Engineering, Commonwealth Scientific and Industrial Research Organization (CSIRO), North Ryde, New South Wales, Australia
| | - Bjørg Steinkjer
- Centre of Molecular Inflammation Research and Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Liv Ryan
- Centre of Molecular Inflammation Research and Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Rolf Larsson
- Corline System AB, Uppsala, Sweden.,Department of Immunology, Genetics and Pathology, University of Uppsala, Uppsala, Sweden
| | - Bernard Edward Tuch
- Materials Science and Engineering, Commonwealth Scientific and Industrial Research Organization (CSIRO), North Ryde, New South Wales, Australia. .,School of Medical Sciences, University of Sydney, Sydney, New South Wales, Australia.
| | - Jose Oberholzer
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Anne Mari Rokstad
- Centre of Molecular Inflammation Research and Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.,The Central Norway Regional Health Authority (RHA), Trondheim, Norway
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50
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Diel D, Lagranha VL, Schuh RS, Bruxel F, Matte U, Teixeira HF. Optimization of alginate microcapsules containing cells overexpressing α-l-iduronidase using Box-Behnken design. Eur J Pharm Sci 2017; 111:29-37. [PMID: 28882767 DOI: 10.1016/j.ejps.2017.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/28/2017] [Accepted: 09/04/2017] [Indexed: 02/07/2023]
Abstract
Mucopolysaccharidosis type I (MPS I) is an autosomal recessive disease caused by deficiency of α-l-iduronidase (IDUA), which results in the lysosomal accumulation of glycosaminoglycans (GAG) leading to widespread clinical manifestations. The microencapsulation of IDUA overexpressing recombinant cells has been considered as a promising strategy for the treatment of MPS I. This study aimed at the optimization of alginate microcapsules containing recombinant BHK (Baby Hamster Kidney) cells (rBHK) overexpressing IDUA produced by electrostatic extrusion technique. The alginate microcapsule (MC-A) optimization study was carried out by means of an experimental Box-Behnken Design that allowed the simultaneous evaluation of the influence of voltage (kV), alginate/cell suspension flow (mL/h), and alginate concentration (%) on size and IDUA activity. The optimal conditions of voltage (10kV), flow (25mL/h), and alginate concentration (1.3%) made possible to obtain the smallest microcapsules showing the highest IDUA activity. After optimization, the microcapsules were sequentially coated with PLL and alginate (MC-APA) to increase their stability. MC-A and MC-APA presented monodisperse populations (span<1.22) with an average diameter of less than 350μm. The coating increased the mechanical stability of MC-APA by about 6-fold and modulated the permeability to the enzyme. Surface analyzes of MC-APA showed the presence of PLL bands, suggesting that the last alginate layer appears to have only partially coated the PLL. After 30days of subcutaneous implantation of the MC-APA microcapsules containing rBHK cells in a MPS I murine model, a significant increase in IDUA activity was observed in the skin near the implant. Histological analysis revealed an inflammatory infiltrate at the application site, which did not prevent the release of the enzyme under the conditions evaluated. Taken together, the overall results demonstrate the feasibility of MC-APA as a potential alternative for local treatment of MPS I.
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Affiliation(s)
- Dirnete Diel
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Farmácia, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Valeska Lizzi Lagranha
- Programa de Pós-Graduação em Genética e Biologia Molecular da Universidade Federal do Rio Grande do Sul (UFRGS), Campus do Vale, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Roselena Silvestri Schuh
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Farmácia, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Fernanda Bruxel
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Pampa (UNIPAMPA), BR 472, km 592, 97508-000, Uruguaiana, RS, Brazil
| | - Ursula Matte
- Programa de Pós-Graduação em Genética e Biologia Molecular da Universidade Federal do Rio Grande do Sul (UFRGS), Campus do Vale, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Helder Ferreira Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Farmácia, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil.
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