1
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Paget MB, Murray HE, Bailey CJ, Downing R. From insulin injections to islet transplantation: An overview of the journey. Diabetes Obes Metab 2022; 24 Suppl 1:5-16. [PMID: 34431589 DOI: 10.1111/dom.14526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 12/21/2022]
Abstract
When, in 1869, Paul Langerhans detected the "islands of tissue" in the pancreas, he took the first step on a journey towards islet transplantation as a treatment for type 1 diabetes. The route has embraced developments across biosciences, surgery, gene therapy and clinical research. This review highlights major milestones along that journey involving whole pancreas transplantation, islet transplantation, the creation of surrogate insulin-secreting cells and novel islet-like structures using genetic and bio-engineering technologies. To obviate the paucity of human tissue, pluripotent stem cells and non-β-cells within the pancreas have been modified to create physiologically responsive insulin-secreting cells. Before implantation, these can be co-cultured with endothelial cells to promote vascularisation and with immune defence cells such as placental amnion cells to reduce immune rejection. Scaffolds to contain grafts and facilitate surgical placement provide further opportunities to achieve physiological insulin delivery. Alternatively, xenotransplants such as porcine islets might be reconsidered as opportunities exist to circumvent safety concerns and immune rejection. Thus, despite a long and arduous journey, the prospects for increased use of tissue transplantation to provide physiological insulin replacement are drawing ever closer.
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Affiliation(s)
- Michelle B Paget
- Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Hilary E Murray
- Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | | | - Richard Downing
- Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
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2
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Mechanisms of Immunomodulation and Cytoprotection Conferred to Pancreatic Islet by Human Amniotic Epithelial Cells. Stem Cell Rev Rep 2021; 18:346-359. [PMID: 34613550 PMCID: PMC8799589 DOI: 10.1007/s12015-021-10269-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2021] [Indexed: 12/19/2022]
Abstract
Inhibiting pro-inflammatory cytokine activity can reverse inflammation mediated dysfunction of islet grafts. Human amniotic epithelial cells (hAECs) possess regenerative, immunomodulatory and anti-inflammatory properties. We hypothesized that hAECs could protect islets from cellular damage induced by pro-inflammatory cytokines. To verify our hypothesis, hAEC monocultures, rat islets (RI), or RI-hAEC co-cultures where exposed to a pro-inflammatory cytokine cocktail (Interferon γ: IFN-γ, Tumor necrosis factor α: TNF-α and Interleukin-1β: IL-1β). The secretion of anti-inflammatory cytokines and gene expression changes in hAECs and viability and function of RI were evaluated. The expression of non-classical Major Histocompatibility Complex (MHC) class I molecules by hAECs cultured with various IFN-γ concentrations were assessed. Exposure to the pro-inflammatory cocktail significantly increased the secretion of the anti-inflammatory cytokines IL6, IL10 and G-CSF by hAECs, which was confirmed by upregulation of IL6, and IL10 gene expression. HLA-G, HLA-E and PDL-1 gene expression was also increased. This correlated with an upregulation of STAT1, STAT3 and NF-κB1gene expression levels. RI co-cultured with hAECs maintained normal function after cytokine exposure compared to RI cultured alone, and showed significantly lower apoptosis rate. Our results show that exposure to pro-inflammatory cytokines stimulates secretion of anti-inflammatory and immunomodulatory factors by hAECs through the JAK1/2 – STAT1/3 and the NF-κB1 pathways, which in turn protects islets against inflammation-induced damages. Integrating hAECs in islet transplants appears as a valuable strategy to achieve to inhibit inflammation mediated islet damage, prolong islet survival, improve their engraftment and achieve local immune protection allowing reducing systemic immunosuppressive regimens.
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3
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Murray HE, Zafar A, Qureshi KM, Paget MB, Bailey CJ, Downing R. The potential role of multifunctional human amniotic epithelial cells in pancreatic islet transplantation. J Tissue Eng Regen Med 2021; 15:599-611. [PMID: 34216434 DOI: 10.1002/term.3214] [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: 12/08/2020] [Accepted: 04/23/2021] [Indexed: 11/08/2022]
Abstract
Pancreatic islet cell transplantation has proven efficacy as a treatment for type 1 diabetes mellitus, chiefly in individuals who are refractory to conventional insulin replacement therapy. At present its clinical use is restricted, firstly by the limited access to suitable donor organs but also due to factors associated with the current clinical transplant procedure which inadvertently impair the long-term functionality of the islet graft. Of note, the physical, biochemical, inflammatory, and immunological stresses to which islets are subjected, either during pretransplant processing or following implantation are detrimental to their sustained viability, necessitating repeated islet infusions to attain adequate glucose control. Progressive decline in functional beta (β)-cell mass leads to graft failure and the eventual re-instatement of exogenous insulin treatment. Strategies which protect and/or preserve optimal islet function in the peri-transplant period would improve clinical outcomes. Human amniotic epithelial cells (HAEC) exhibit both pluripotency and immune-privilege and are ideally suited for use in replacement and regenerative therapies. The HAEC secretome exhibits trophic, anti-inflammatory, and immunomodulatory properties of relevance to islet graft survival. Facilitated by β-cell supportive 3D cell culture systems, HAEC may be integrated with islets bringing them into close spatial arrangement where they may exert paracrine influences that support β-cell function, reduce hypoxia-induced islet injury, and alter islet alloreactivity. The present review details the potential of multifunctional HAEC in the context of islet transplantation, with a focus on the innate capabilities that may counter adverse events associated with the current clinical transplant protocol to achieve long-term islet graft function.
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Affiliation(s)
- Hilary E Murray
- The Islet Research Laboratory, Worcester Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Ali Zafar
- The Islet Research Laboratory, Worcester Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK.,Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Khalid M Qureshi
- The Islet Research Laboratory, Worcester Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK.,Bradford Royal Infirmary, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Michelle B Paget
- The Islet Research Laboratory, Worcester Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Clifford J Bailey
- Diabetes Research, School of Life and Health Sciences, Aston University, Birmingham, UK
| | - Richard Downing
- The Islet Research Laboratory, Worcester Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
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4
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Akolpoglu MB, Inceoglu Y, Bozuyuk U, Sousa AR, Oliveira MB, Mano JF, Kizilel S. Recent advances in the design of implantable insulin secreting heterocellular islet organoids. Biomaterials 2020; 269:120627. [PMID: 33401104 DOI: 10.1016/j.biomaterials.2020.120627] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 12/11/2022]
Abstract
Islet transplantation has proved one of the most remarkable transmissions from an experimental curiosity into a routine clinical application for the treatment of type I diabetes (T1D). Current efforts for taking this technology one-step further are now focusing on overcoming islet donor shortage, engraftment, prolonged islet availability, post-transplant vascularization, and coming up with new strategies to eliminate lifelong immunosuppression. To this end, insulin secreting 3D cell clusters composed of different types of cells, also referred as heterocellular islet organoids, spheroids, or pseudoislets, have been engineered to overcome the challenges encountered by the current islet transplantation protocols. β-cells or native islets are accompanied by helper cells, also referred to as accessory cells, to generate a cell cluster that is not only able to accurately secrete insulin in response to glucose, but also superior in terms of other key features (e.g. maintaining a vasculature, longer durability in vivo and not necessitating immunosuppression after transplantation). Over the past decade, numerous 3D cell culture techniques have been integrated to create an engineered heterocellular islet organoid that addresses current obstacles. Here, we first discuss the different cell types used to prepare heterocellular organoids for islet transplantation and their contribution to the organoids design. We then introduce various cell culture techniques that are incorporated to prepare a fully functional and insulin secreting organoids with select features. Finally, we discuss the challenges and present a future outlook for improving clinical outcomes of islet transplantation.
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Affiliation(s)
- M Birgul Akolpoglu
- Chemical and Biological Engineering, Koc University, Sariyer, 34450, Istanbul, Turkey
| | - Yasemin Inceoglu
- Chemical and Biological Engineering, Koc University, Sariyer, 34450, Istanbul, Turkey
| | - Ugur Bozuyuk
- Chemical and Biological Engineering, Koc University, Sariyer, 34450, Istanbul, Turkey
| | - Ana Rita Sousa
- Department of Chemistry, CICECO - Aveiro Institute of Materials. University of Aveiro. Campus Universitário de Santiago. 3810-193 Aveiro. Portugal
| | - Mariana B Oliveira
- Department of Chemistry, CICECO - Aveiro Institute of Materials. University of Aveiro. Campus Universitário de Santiago. 3810-193 Aveiro. Portugal.
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials. University of Aveiro. Campus Universitário de Santiago. 3810-193 Aveiro. Portugal
| | - Seda Kizilel
- Chemical and Biological Engineering, Koc University, Sariyer, 34450, Istanbul, Turkey.
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5
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Lebreton F, Wassmer CH, Belofatto K, Berney T, Berishvili E. [Insulin-secreting organoids: a first step towards the bioartificial pancreas]. Med Sci (Paris) 2020; 36:879-885. [PMID: 33026330 DOI: 10.1051/medsci/2020129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Pancreatic islet transplantation is a valid cure for selected type-1 diabetic patients. It offers a minimally invasive β-cell replacement approach and has proven its capacity to significantly enhance patients quality of life. However, these insulin-secreting mini-organs suffer from the loss of intrinsic vascularization and extra-cellular matrix occurring during isolation, resulting in hypoxic stress and necrosis. In addition, they have to face inflammatory and immune destruction once transplanted in the liver. Organoid generation represents a strategy to overcome these obstacles by allowing size and shape control as well as composition. It does offer the possibility to add supporting cells such as endothelial cells, in order to facilitate revascularization or cells releasing anti-inflammatory and/or immunomodulatory factors. This review describes the limitations of pancreatic islet transplantation and details the benefits offered by organoids as a cornerstone toward the generation of a bioartificial pancreas.
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Affiliation(s)
- Fanny Lebreton
- Laboratoire de transplantation cellulaire, Département de Chirurgie, Centre médical universitaire, Hôpitaux de l'université de Genève et université de Genève, Genève, Suisse - Centre facultaire du diabète, Centre médical de l'université de Genève, Genève, Suisse
| | - Charles-Henri Wassmer
- Laboratoire de transplantation cellulaire, Département de Chirurgie, Centre médical universitaire, Hôpitaux de l'université de Genève et université de Genève, Genève, Suisse - Centre facultaire du diabète, Centre médical de l'université de Genève, Genève, Suisse
| | - Kevin Belofatto
- Laboratoire de transplantation cellulaire, Département de Chirurgie, Centre médical universitaire, Hôpitaux de l'université de Genève et université de Genève, Genève, Suisse - Centre facultaire du diabète, Centre médical de l'université de Genève, Genève, Suisse
| | - Thierry Berney
- Laboratoire de transplantation cellulaire, Département de Chirurgie, Centre médical universitaire, Hôpitaux de l'université de Genève et université de Genève, Genève, Suisse - Centre facultaire du diabète, Centre médical de l'université de Genève, Genève, Suisse
| | - Ekaterine Berishvili
- Laboratoire de transplantation cellulaire, Département de Chirurgie, Centre médical universitaire, Hôpitaux de l'université de Genève et université de Genève, Genève, Suisse - Centre facultaire du diabète, Centre médical de l'université de Genève, Genève, Suisse - Institute of Medical Research, Ilia State University, Tbilissi, Géorgie
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6
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Wassmer CH, Lebreton F, Bellofatto K, Bosco D, Berney T, Berishvili E. Generation of insulin-secreting organoids: a step toward engineering and transplanting the bioartificial pancreas. Transpl Int 2020; 33:1577-1588. [PMID: 32852858 PMCID: PMC7756715 DOI: 10.1111/tri.13721] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/06/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023]
Abstract
Diabetes is a major health issue of increasing prevalence. ß‐cell replacement, by pancreas or islet transplantation, is the only long‐term curative option for patients with insulin‐dependent diabetes. Despite good functional results, pancreas transplantation remains a major surgery with potentially severe complications. Islet transplantation is a minimally invasive alternative that can widen the indications in view of its lower morbidity. However, the islet isolation procedure disrupts their vasculature and connection to the surrounding extracellular matrix, exposing them to ischemia and anoikis. Implanted islets are also the target of innate and adaptive immune attacks, thus preventing robust engraftment and prolonged full function. Generation of organoids, defined as functional 3D structures assembled with cell types from different sources, is a strategy increasingly used in regenerative medicine for tissue replacement or repair, in a variety of inflammatory or degenerative disorders. Applied to ß‐cell replacement, it offers the possibility to control the size and composition of islet‐like structures (pseudo‐islets), and to include cells with anti‐inflammatory or immunomodulatory properties. In this review, we will present approaches to generate islet cell organoids and discuss how these strategies can be applied to the generation of a bioartificial pancreas for the treatment of type 1 diabetes.
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Affiliation(s)
- Charles-Henri Wassmer
- Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.,Faculty Diabetes Center, University of Geneva Medical Center, Geneva, Switzerland.,Division of Transplantation, Department of Surgery, University of Geneva Hospitals, Geneva, Switzerland
| | - Fanny Lebreton
- Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.,Faculty Diabetes Center, University of Geneva Medical Center, Geneva, Switzerland
| | - Kevin Bellofatto
- Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.,Faculty Diabetes Center, University of Geneva Medical Center, Geneva, Switzerland
| | - Domenico Bosco
- Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.,Faculty Diabetes Center, University of Geneva Medical Center, Geneva, Switzerland
| | - Thierry Berney
- Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.,Faculty Diabetes Center, University of Geneva Medical Center, Geneva, Switzerland.,Division of Transplantation, Department of Surgery, University of Geneva Hospitals, Geneva, Switzerland
| | - Ekaterine Berishvili
- Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.,Faculty Diabetes Center, University of Geneva Medical Center, Geneva, Switzerland.,Institute of Medical and Public Health Research, Ilia State University, Tbilisi, Georgia
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7
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Grimm D, Wehland M, Corydon TJ, Richter P, Prasad B, Bauer J, Egli M, Kopp S, Lebert M, Krüger M. The effects of microgravity on differentiation and cell growth in stem cells and cancer stem cells. Stem Cells Transl Med 2020; 9:882-894. [PMID: 32352658 PMCID: PMC7381804 DOI: 10.1002/sctm.20-0084] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/31/2020] [Accepted: 04/04/2020] [Indexed: 12/12/2022] Open
Abstract
A spaceflight has enormous influence on the health of space voyagers due to the combined effects of microgravity and cosmic radiation. Known effects of microgravity (μg) on cells are changes in differentiation and growth. Considering the commercialization of spaceflight, future space exploration, and long-term manned flights, research focusing on differentiation and growth of stem cells and cancer cells exposed to real (r-) and simulated (s-) μg is of high interest for regenerative medicine and cancer research. In this review, we focus on platforms to study r- and s-μg as well as the impact of μg on cancer stem cells in the field of gastrointestinal cancer, lung cancer, and osteosarcoma. Moreover, we review the current knowledge of different types of stem cells exposed to μg conditions with regard to differentiation and engineering of cartilage, bone, vasculature, heart, skin, and liver constructs.
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Affiliation(s)
- Daniela Grimm
- Department of Microgravity and Translational Regenerative Medicine, Otto von Guericke University, Magdeburg, Germany.,Clinic for Plastic, Aesthetic and Hand Surgery, Otto von Guericke University, Magdeburg, Germany.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Markus Wehland
- Clinic for Plastic, Aesthetic and Hand Surgery, Otto von Guericke University, Magdeburg, Germany
| | - Thomas J Corydon
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | - Peter Richter
- Department of Biology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Binod Prasad
- Department of Biology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Johann Bauer
- Max Planck Institute of Biochemistry, Planegg-Martinsried, Germany
| | - Marcel Egli
- Institute of Medical Engineering, Space Biology Group, Lucerne University of Applied Sciences and Arts, Hergiswil, Switzerland
| | - Sascha Kopp
- Clinic for Plastic, Aesthetic and Hand Surgery, Otto von Guericke University, Magdeburg, Germany
| | - Michael Lebert
- Department of Biology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany.,Space Biology Unlimited SAS, Bordeaux, France
| | - Marcus Krüger
- Clinic for Plastic, Aesthetic and Hand Surgery, Otto von Guericke University, Magdeburg, Germany
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8
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Zafar A, Lee J, Yesmin S, Paget MB, Bailey CJ, Murray HE, Downing R. Rotational culture and integration with amniotic stem cells reduce porcine islet immunoreactivity in vitro and slow xeno-rejection in a murine model of islet transplantation. Xenotransplantation 2019; 26:e12508. [PMID: 30963627 DOI: 10.1111/xen.12508] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 02/04/2019] [Accepted: 03/07/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Pre-transplant modification of porcine islets may improve their suitability for clinical use in diabetes management by supporting graft function and reducing the potential for xeno-rejection. The present study investigates intra-graft incorporation of stem cells that secrete beta (β)-cell trophic and immunomodulatory factors to preserve function and alter immune cell responsiveness to porcine islets. METHODS Isolated porcine islets were maintained in a three-dimensional rotational cell culture system (RCCS) to facilitate aggregation with human amniotic epithelial cells (AECs). Assembled islet constructs were assessed for functional integrity and ability to avoid xeno-recognition by CD4+ T-cells using mixed islet:lymphocyte reaction assays. To determine whether stem cell-mediated modification of porcine islets provided a survival advantage over native islets, structural integrity was examined in a pig-to-mouse islet transplant model. RESULTS Rotational cell culture system supported the formation of porcine islet:AEC aggregates with improved insulin-secretory capacity compared to unmodified islets, whilst the xeno-response of purified CD4+ T-cells to AEC-bearing grafts was significantly (P < 0.05) attenuated. Transplanted AEC-bearing grafts demonstrated slower rejection in immune-competent recipients compared to unmodified islets. CONCLUSIONS/INTERPRETATION Rotational culture enables pre-transplant modification of porcine islets by integration with immunomodulatory stem cells capable of subduing xeno-reactivity to CD4+ T-cells. This reduces islet rejection and offers translational potential to widen availability and improve the clinical effectiveness of islet transplantation.
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Affiliation(s)
- Ali Zafar
- The Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Jou Lee
- The Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Shameema Yesmin
- The Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Michelle B Paget
- The Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Clifford J Bailey
- Diabetes Research, School of Life and Health Sciences, Aston University, Birmingham, UK
| | - Hilary E Murray
- The Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Richard Downing
- The Islet Research Laboratory, Worcestershire Clinical Research Unit, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
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9
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Kim E, Kim JC, Min K, Goh M, Tae G. Rapid and Versatile Cell Aggregate Formation Using Lipid-Conjugated Heparin. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24431-24439. [PMID: 29953811 DOI: 10.1021/acsami.8b07731] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cell aggregates hold significant therapeutic promise for in vitro cell analysis, ex vivo tissue models, and in vivo cell therapy and tissue engineering. Traditional methods of making cell aggregates require long incubation times and can only produce three-dimensional-spheroid-shaped aggregates. We propose a novel method of making cell aggregates of diverse sizes and shapes using lipid-conjugated heparin. Shaking the cell suspension containing a small amount of lipid-conjugated heparin for approximately 30 min produced cell aggregates. This approach can be applied to any cell type, including stem cells, fibroblast cells, and T lymphocytes. The shape of biocompatible templates could modulate the shape of cell aggregates. In addition to layered, multicompartmental cell aggregates on template, template-free, tube-shaped cell aggregates could also be made. The cell aggregates formed were alive and maintained biological activities.
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Affiliation(s)
- Eunsol Kim
- School of Materials Science and Engineering , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - Jong Chul Kim
- School of Materials Science and Engineering , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - Kiyoon Min
- School of Materials Science and Engineering , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - MeeiChyn Goh
- School of Materials Science and Engineering , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - Giyoong Tae
- School of Materials Science and Engineering , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro , Buk-gu, Gwangju 61005 , Republic of Korea
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10
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Gravity and Embryo Development. CURRENT OBSTETRICS AND GYNECOLOGY REPORTS 2017. [DOI: 10.1007/s13669-017-0193-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Wang D, Ding X, Xue W, Zheng J, Tian X, Li Y, Wang X, Song H, Liu H, Luo X. A new scaffold containing small intestinal submucosa and mesenchymal stem cells improves pancreatic islet function and survival in vitro and in vivo. Int J Mol Med 2016; 39:167-173. [PMID: 27909715 PMCID: PMC5179187 DOI: 10.3892/ijmm.2016.2814] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 11/25/2016] [Indexed: 12/23/2022] Open
Abstract
It is unknown whether a scaffold containing both small intestinal submucosa (SIS) and mesenchymal stem cells (MSCs) for transplantation may improve pancreatic islet function and survival. In this study, we examined the effects of a SIS-MSC scaffold on islet function and survival in vitro and in vivo. MSCs and pancreatic islets were isolated from Sprague-Dawley rats, and SIS was isolated from Bamei pigs. The islets were apportioned among 3 experimental groups as follows: SIS-islets, SIS-MSC-islets and control-islets. In vitro, islet function was measured by a glucose-stimulated insulin secretion test; cytokines in cultured supernatants were assessed by enzyme-linked immunosorbent assay; and gene expression was analyzed by reverse transcription-quantitative PCR. In vivo, islet transplantation was performed in rats, and graft function and survival were monitored by measuring the blood glucose levels. In vitro, the SIS-MSC scaffold was associated with improved islet viability and enhanced insulin secretion compared with the controls, as well as with the increased the expression of insulin 1 (Ins1), pancreatic and duodenal homeobox 1 (Pdx1), platelet endothelial cell adhesion molecule 1 [Pecam1; also known as cluster of differentiation 31 (CD31)] and vascular endothelial growth factor A (Vegfa) in the islets, increased growth factor secretion, and decreased tumor necrosis factor (TNF) secretion. In vivo, the SIS-MSC scaffold was associated with improved islet function and graft survival compared with the SIS and control groups. On the whole, our findings demonstrate that the SIS-MSC scaffold significantly improved pancreatic islet function and survival in vitro and in vivo. This improvement may be associated with the upregulation of insulin expression, the improvement of islet microcirculation and the secretion of cytokines.
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Affiliation(s)
- Dan Wang
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaoming Ding
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wujun Xue
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jin Zheng
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaohui Tian
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yang Li
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaohong Wang
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Huanjin Song
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Hua Liu
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaohui Luo
- Department of Renal Transplantation, Center of Nephropathy, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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12
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Goodwin TJ, McCarthy M, Cohrs RJ, Kaufer BB. 3D tissue-like assemblies: A novel approach to investigate virus-cell interactions. Methods 2015; 90:76-84. [PMID: 25986169 PMCID: PMC5489059 DOI: 10.1016/j.ymeth.2015.05.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 05/07/2015] [Accepted: 05/08/2015] [Indexed: 01/09/2023] Open
Abstract
Virus-host cell interactions are most commonly analyzed in cells maintained in vitro as two-dimensional tissue cultures. However, these in vitro conditions vary quite drastically from the tissues that are commonly infected in vivo. Over the years, a number of systems have been developed that allow the establishment of three-dimensional (3D) tissue structures that have properties similar to their in vivo 3D counterparts. These 3D systems have numerous applications including drug testing, maintenance of large tissue explants, monitoring migration of human lymphocytes in tissues, analysis of human organ tissue development and investigation of virus-host interactions including viral latency. Here, we describe the establishment of tissue-like assemblies for human lung and neuronal tissue that we infected with a variety of viruses including the respiratory pathogens human parainfluenza virus type 3 (PIV3), respiratory syncytial virus (RSV) and SARS corona virus (SARS-CoV) as well as the human neurotropic herpesvirus, varicella-zoster virus (VZV).
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Affiliation(s)
- Thomas J Goodwin
- Disease Modelling/Tissue Analogues Laboratory, NASA Johnson Space Center, Houston, TX, USA.
| | - Maureen McCarthy
- Disease Modelling/Tissue Analogues Laboratory, NASA Johnson Space Center, Houston, TX, USA
| | - Randall J Cohrs
- Departments of Neurology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA.
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