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Chao X, Zhao F, Hu J, Yu Y, Xie R, Zhong J, Huang M, Zeng T, Yang H, Luo D, Peng W. Comparative Study of Two Common In Vitro Models for the Pancreatic Islet with MIN6. Tissue Eng Regen Med 2023; 20:127-141. [PMID: 36592326 PMCID: PMC9852380 DOI: 10.1007/s13770-022-00507-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 10/20/2022] [Accepted: 10/30/2022] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Islet transplantation is currently considered the most promising method for treating insulin-dependent diabetes. The two most-studied artificial islets are alginate-encapsulated β cells or β cell spheroids. As three-dimensional (3D) models, both artificial islets have better insulin secretory functions and transplantation efficiencies than cells in two-dimensional (2D) monolayer culture. However, the effects of these two methods have not been compared yet. Therefore, in this study, cells from the mouse islet β cell line Min6 were constructed as scaffold-free spheroids or alginate-encapsulated dispersed cells. METHODS MIN6 cell spheroids were prepared by using Agarose-base microwell arrays. The insulin secretion level was determined by mouse insulin ELISA kit, and the gene and protein expression status of the MIN6 were performed by Quantitative polymerase chain reaction and immunoblot, respectively. RESULTS Both 3D cultures effectively promoted the proliferation and glucose-stimulated insulin release (GSIS) of MIN6 cells compared to 2D adherent cells. Furthermore, 1% alginate-encapsulated MIN6 cells demonstrated more significant effects than the spheroids. In general, three pancreatic genes were expressed at higher levels in response to the 3D culture than to the 2D culture, and pancreatic/duodenal homeobox-1 (PDX1) expression was higher in the cells encapsulated in 1% alginate than that in the spheroids. A western blot analysis showed that 1% alginate-encapsulated MIN6 cells activated the phosphoinositide 3-kinase (PI3K)/serine/threonine protein kinase (AKT)/forkhead transcription factor FKHR (FoxO1) pathway more than the spheroids, 0.5% alginate-, or 2% alginate-encapsulated cells did. The 3D MIN6 culture, therefore, showed improved effects compared to the 2D culture, and the 1% alginate-encapsulated MIN6 cells exhibited better effects than the spheroids. The upregulation of PDX1 expression through the activation of the PI3K/AKT/FoxO1 pathway may mediate the improved cell proliferation and GSIS in 1% alginate-encapsulated MIN6 cells. CONCLUSION This study may contribute to the construction of in vitro culture systems for pancreatic islets to meet clinical requirements.
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Affiliation(s)
- Xinxin Chao
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China
- The Affiliated Hospital of Jining Medical University, Shandong, China
| | - Furong Zhao
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China
- Department of Clinical Pharmacy, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong, China
| | - Jiawei Hu
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China
| | - Yanrong Yu
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, China
| | - Renjian Xie
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China
| | - Jianing Zhong
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China
| | - Miao Huang
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China
| | - Tai Zeng
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China
| | - Hui Yang
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China.
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China.
| | - Dan Luo
- Department of Physiology, School of Basic Medicine, Nanchang University, Nanchang, China.
| | - Weijie Peng
- Jiangxi Provincial Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou, China.
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China.
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, China.
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Jung YK, Narendra Kumar AV, Jeon BH, Kim EY, Yum T, Paeng KJ. Exploration of Zero-Valent Iron Stabilized Calcium–Silicate–Alginate Beads’ Catalytic Activity and Stability for Perchlorate Degradation. MATERIALS 2022; 15:ma15093340. [PMID: 35591672 PMCID: PMC9099448 DOI: 10.3390/ma15093340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 01/27/2023]
Abstract
Perchlorate contamination in groundwater poses a serious threat to human health, owing to its interference with thyroid function. The high solubility and poor adsorption of perchlorate ions make perchlorate degradation a necessary technology in groundwater contaminant removal. Here, we demonstrate the perchlorate degradation by employing nano zero-valent iron (nZVI) embedded in biocompatible silica alginate hybrid beads fabricated using calcium chloride (1 wt%) as a crosslinker. The concentration of precursors (sodium alginate, sodium silicate) for bead formation was standardized by evaluating the thermal stability of beads prepared at different sodium silicate and alginate concentrations. Thermal degradation of silica alginate hybrid samples showed a stepwise weight loss during the thermal sweep, indicating different types of reactions that occur during the degradation process. The formation of the silica alginate hybrid structure was confirmed by FT-IR spectroscopy. Scanning electron microscopy (SEM) data revealed the surface morphology of silica alginate hybrid changes by varying sodium silicate and alginate concentrations. nZVI-loaded alginate–silicate polymer bead (nZVI-ASB) exhibited excellent perchlorate degradation efficiency by degrading 20 ppm of perchlorate within 4 h. Our study also showed the perchlorate degradation efficiency of nZVI-ASB is maximum at neutral pH conditions.
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Affiliation(s)
- Yu-Kyung Jung
- Department of Chemistry, Yonsei University, Wonju 26493, Korea; (Y.-K.J.); (E.Y.K.); (T.Y.)
| | | | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Korea;
- Correspondence: (B.-H.J.); (K.-J.P.)
| | - Eun Young Kim
- Department of Chemistry, Yonsei University, Wonju 26493, Korea; (Y.-K.J.); (E.Y.K.); (T.Y.)
| | - Taewoo Yum
- Department of Chemistry, Yonsei University, Wonju 26493, Korea; (Y.-K.J.); (E.Y.K.); (T.Y.)
| | - Ki-Jung Paeng
- Department of Chemistry, Yonsei University, Wonju 26493, Korea; (Y.-K.J.); (E.Y.K.); (T.Y.)
- Correspondence: (B.-H.J.); (K.-J.P.)
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Evaluation of the effect of alginate matrices combination on insulin-secreting MIN-6 cell viability. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Reátegui E, Kasinkas L, Kniesz K, Lefebvre MA, Aksan A. Silica–PEG gel immobilization of mammalian cells. J Mater Chem B 2014; 2:7440-7448. [DOI: 10.1039/c4tb00812j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this study, human foreskin fibroblasts and mouse embryonic fibroblasts were encapsulated in mechanically reversible, THEOS and THEOS–PEG gels that completely immobilized them restricting their motility, growth and proliferation.
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Affiliation(s)
- Eduardo Reátegui
- Biostabilization Laboratory
- Department of Mechanical Engineering
- University of Minnesota
- Minneapolis, USA
| | - Lisa Kasinkas
- Biostabilization Laboratory
- Department of Mechanical Engineering
- University of Minnesota
- Minneapolis, USA
| | - Katrina Kniesz
- Biostabilization Laboratory
- Department of Mechanical Engineering
- University of Minnesota
- Minneapolis, USA
| | - Molly A. Lefebvre
- Biostabilization Laboratory
- Department of Mechanical Engineering
- University of Minnesota
- Minneapolis, USA
| | - Alptekin Aksan
- Biostabilization Laboratory
- Department of Mechanical Engineering
- University of Minnesota
- Minneapolis, USA
- BioTechnology Institute
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Liu F, Carlos LD, Ferreira RAS, Rocha J, Gaudino MC, Robitzer M, Quignard F. Photoluminescent Porous Alginate Hybrid Materials Containing Lanthanide Ions. Biomacromolecules 2008; 9:1945-50. [DOI: 10.1021/bm8002122] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fengyi Liu
- Department of Physics, CICECO, University of Aveiro, Portugal, Institut Charles Gerhardt- Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France, and Department of Chemistry, CICECO, University of Aveiro, Portugal
| | - Luis D. Carlos
- Department of Physics, CICECO, University of Aveiro, Portugal, Institut Charles Gerhardt- Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France, and Department of Chemistry, CICECO, University of Aveiro, Portugal
| | - Rute A. S. Ferreira
- Department of Physics, CICECO, University of Aveiro, Portugal, Institut Charles Gerhardt- Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France, and Department of Chemistry, CICECO, University of Aveiro, Portugal
| | - João Rocha
- Department of Physics, CICECO, University of Aveiro, Portugal, Institut Charles Gerhardt- Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France, and Department of Chemistry, CICECO, University of Aveiro, Portugal
| | - Maria Concetta Gaudino
- Department of Physics, CICECO, University of Aveiro, Portugal, Institut Charles Gerhardt- Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France, and Department of Chemistry, CICECO, University of Aveiro, Portugal
| | - Mike Robitzer
- Department of Physics, CICECO, University of Aveiro, Portugal, Institut Charles Gerhardt- Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France, and Department of Chemistry, CICECO, University of Aveiro, Portugal
| | - Françoise Quignard
- Department of Physics, CICECO, University of Aveiro, Portugal, Institut Charles Gerhardt- Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France, and Department of Chemistry, CICECO, University of Aveiro, Portugal
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Black SP, Constantinidis I, Cui H, Tucker-Burden C, Weber CJ, Safley SA. Immune responses to an encapsulated allogeneic islet β-cell line in diabetic NOD mice. Biochem Biophys Res Commun 2006; 340:236-43. [PMID: 16375863 DOI: 10.1016/j.bbrc.2005.11.180] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2005] [Accepted: 11/22/2005] [Indexed: 02/02/2023]
Abstract
Our goal is to develop effective islet grafts for treating type 1 diabetes. Since human islets are scarce, we evaluated the efficacy of a microencapsulated insulin-secreting conditionally transformed allogeneic beta-cell line (betaTC-tet) in non-obese diabetic mice treated with tetracycline to inhibit cell growth. Relatively low serum levels of tetracycline controlled proliferation of betaTC-tet cells without inhibiting effective control of hyperglycemia in recipients. There was no significant host cellular reaction to the allografts or host cell adherence to microcapsules, and host cytokine levels were similar to those of sham-operated controls. We conclude that encapsulated allogeneic beta-cell lines may be clinically relevant, because they effectively restore euglycemia and do not elicit a strong cellular immune response following transplantation. To our knowledge, this is the first extensive characterization of the kinetics of host cellular and cytokine responses to an encapsulated islet cell line in an animal model of type 1 diabetes.
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Affiliation(s)
- Sasha P Black
- Charles River Laboratories, Pre-clinical Services Montreal, Senneville, Que., Canada H9X 3R3.
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Boissière M, Meadows PJ, Brayner R, Hélary C, Livage J, Coradin T. Turning biopolymer particles into hybrid capsules: the example of silica/alginate nanocomposites. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b515797h] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Avnir D, Coradin T, Lev O, Livage J. Recent bio-applications of sol–gel materials. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b512706h] [Citation(s) in RCA: 629] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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