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Riveros A, Garcia-Brand AJ, Rodriguez-Soto MA, Sandoval N, Muñoz-Camargo C, Cruz JC, Briceño JC. Computational Characterization of Mechanical, Hemodynamic, and Surface Interaction Conditions: Role of Protein Adsorption on the Regenerative Response of TEVGs. Int J Mol Sci 2022; 23:1130. [PMID: 35163056 DOI: 10.3390/ijms23031130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/15/2022] [Accepted: 01/16/2022] [Indexed: 12/10/2022] Open
Abstract
Currently available small diameter vascular grafts (<6 mm) present several long-term limitations, which has prevented their full clinical implementation. Computational modeling and simulation emerge as tools to study and optimize the rational design of small diameter tissue engineered vascular grafts (TEVG). This study aims to model the correlation between mechanical-hemodynamic-biochemical variables on protein adsorption over TEVG and their regenerative potential. To understand mechanical-hemodynamic variables, two-way Fluid-Structure Interaction (FSI) computational models of novel TEVGs were developed in ANSYS Fluent 2019R3® and ANSYS Transient Structural® software. Experimental pulsatile pressure was included as an UDF into the models. TEVG mechanical properties were obtained from tensile strength tests, under the ISO7198:2016, for novel TEVGs. Subsequently, a kinetic model, linked to previously obtained velocity profiles, of the protein-surface interaction between albumin and fibrinogen, and the intima layer of the TEVGs, was implemented in COMSOL Multiphysics 5.3®. TEVG wall properties appear critical to understand flow and protein adsorption under hemodynamic stimuli. In addition, the kinetic model under flow conditions revealed that size and concentration are the main parameters to trigger protein adsorption on TEVGs. The computational models provide a robust platform to study multiparametrically the performance of TEVGs in terms of protein adsorption and their regenerative potential.
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2
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Rodriguez-Soto MA, Suarez Vargas N, Riveros A, Camargo CM, Cruz JC, Sandoval N, Briceño JC. Failure Analysis of TEVG's I: Overcoming the Initial Stages of Blood Material Interaction and Stabilization of the Immune Response. Cells 2021; 10:3140. [PMID: 34831361 PMCID: PMC8625197 DOI: 10.3390/cells10113140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/28/2021] [Accepted: 11/06/2021] [Indexed: 12/16/2022] Open
Abstract
Vascular grafts (VG) are medical devices intended to replace the function of a diseased vessel. Current approaches use non-biodegradable materials that struggle to maintain patency under complex hemodynamic conditions. Even with the current advances in tissue engineering and regenerative medicine with the tissue engineered vascular grafts (TEVGs), the cellular response is not yet close to mimicking the biological function of native vessels, and the understanding of the interactions between cells from the blood and the vascular wall with the material in operative conditions is much needed. These interactions change over time after the implantation of the graft. Here we aim to analyze the current knowledge in bio-molecular interactions between blood components, cells and materials that lead either to an early failure or to the stabilization of the vascular graft before the wall regeneration begins.
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Affiliation(s)
- Maria A. Rodriguez-Soto
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Natalia Suarez Vargas
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Alejandra Riveros
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Carolina Muñoz Camargo
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Nestor Sandoval
- Department of Congenital Heart Disease and Cardiovascular Surgery, Fundación Cardio Infantil Instituto de Cardiología, Bogotá 111711, Colombia;
| | - Juan C. Briceño
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
- Department of Research, Fundación Cardio Infantil Instituto de Cardiología, Bogotá 111711, Colombia
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3
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Pieri NCG, de Souza AF, Botigelli RC, Pessôa LVDF, Recchia K, Machado LS, Glória MH, de Castro RVG, Leal DF, Fantinato Neto P, Martins SMMK, Dos Santos Martins D, Bressan FF, de Andrade AFC. Porcine Primordial Germ Cell-Like Cells Generated from Induced Pluripotent Stem Cells Under Different Culture Conditions. Stem Cell Rev Rep 2021; 18:1639-1656. [PMID: 34115317 DOI: 10.1007/s12015-021-10198-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2021] [Indexed: 12/15/2022]
Abstract
Culture conditions regulate the process of pluripotency acquisition and self-renewal. This study aimed to analyse the influence of the in vitro environment on the induction of porcine induced pluripotent stem cell (piPSCs) differentiation into primordial germ cell-like cells (pPGCLCs). piPSC culture with different supplementation strategies (LIF, bFGF, or LIF plus bFGF) promoted heterogeneous phenotypic profiles. Continuous bFGF supplementation during piPSCs culture was beneficial to support a pluripotent state and the differentiation of piPSCs into pPGCLCs. The pPGCLCs were positive for the gene and protein expression of pluripotent and germinative markers. This study can provide a suitable in vitro model for use in translational studies and to help answer numerous remaining questions about germ cells.
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Affiliation(s)
- Naira Caroline Godoy Pieri
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, SP, Brazil.
| | - Aline Fernanda de Souza
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, SP, Pirassununga, Brazil
| | - Ramon Cesar Botigelli
- Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Kaiana Recchia
- Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of Sao Paulo, São Paulo, SP, Brazil
| | - Lucas Simões Machado
- Department of Biochemistry, Paulista School of Medicine, Federal University of São Paulo (UNIFESP), São Paulo/SP, Brazil
| | - Mayra Hirakawa Glória
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, SP, Pirassununga, Brazil
| | - Raquel Vasconcelos Guimarães de Castro
- Department of Preventive Veterinary Medicine and Animal Reproduction, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, SP, Brazil
| | - Diego Feitosa Leal
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, SP, Brazil
| | - Paulo Fantinato Neto
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, SP, Pirassununga, Brazil
| | | | - Daniele Dos Santos Martins
- Department of Animal Science, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Fabiana Fernandes Bressan
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, SP, Pirassununga, Brazil
| | - André Furugen Cesar de Andrade
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, SP, Brazil
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4
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Oh BJ, Jin SM, Hwang Y, Choi JM, Lee HS, Kim G, Kim G, Park HJ, Kim P, Kim SJ, Kim JH. Highly Angiogenic, Nonthrombogenic Bone Marrow Mononuclear Cell-Derived Spheroids in Intraportal Islet Transplantation. Diabetes 2018; 67:473-485. [PMID: 29298810 DOI: 10.2337/db17-0705] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 12/24/2017] [Indexed: 11/13/2022]
Abstract
Highly angiogenic bone marrow mononuclear cell-derived spheroids (BM-spheroids), formed by selective proliferation of the CD31+CD14+CD34+ monocyte subset via three-dimensional (3D) culture, have had robust angiogenetic capacity in rodent syngeneic renal subcapsular islet transplantation. We wondered whether the efficacy of BM-spheroids could be demonstrated in clinically relevant intraportal islet transplantation models without increasing the risk of portal thrombosis. The thrombogenic potential of intraportally infused BM-spheroids was compared with that of mesenchymal stem cells (MSCs) and MSC-derived spheroids (MSC-spheroids). The angiogenic efficacy and persistence in portal sinusoids of BM-spheroids were examined in rodent syngeneic and primate allogeneic intraportal islet transplantation models. In contrast to MSCs and MSC-spheroids, intraportal infusion of BM-spheroids did not evoke portal thrombosis. BM-spheroids had robust angiogenetic capacity in both the rodent and primate intraportal islet transplantation models and improved posttransplant glycemic outcomes. MRI and intravital microscopy findings revealed the persistence of intraportally infused BM-spheroids in portal sinusoids. Intraportal cotransplantation of allogeneic islets with autologous BM-spheroids in nonhuman primates further confirmed the clinical feasibility of this approach. In conclusion, cotransplantation of BM-spheroids enhances intraportal islet transplantation outcome without portal thrombosis in mice and nonhuman primates. Generating BM-spheroids by 3D culture prevented the rapid migration and disappearance of intraportally infused therapeutic cells.
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MESH Headings
- Animals
- Biomarkers/blood
- Biomarkers/metabolism
- Bone Marrow Transplantation/adverse effects
- Cell Tracking
- Cells, Cultured
- Diabetes Mellitus, Experimental/immunology
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Experimental/therapy
- Green Fluorescent Proteins/genetics
- Green Fluorescent Proteins/metabolism
- Islets of Langerhans Transplantation/adverse effects
- Islets of Langerhans Transplantation/immunology
- Leukocytes, Mononuclear/cytology
- Leukocytes, Mononuclear/immunology
- Leukocytes, Mononuclear/transplantation
- Liver/immunology
- Liver/metabolism
- Liver/pathology
- Macaca fascicularis
- Male
- Mesenchymal Stem Cell Transplantation/adverse effects
- Mice, Inbred C57BL
- Mice, Transgenic
- Neovascularization, Pathologic/etiology
- Neovascularization, Pathologic/immunology
- Neovascularization, Pathologic/pathology
- Neovascularization, Pathologic/prevention & control
- Portal Vein
- Spheroids, Cellular/cytology
- Spheroids, Cellular/immunology
- Spheroids, Cellular/transplantation
- Streptozocin
- Thrombosis/etiology
- Thrombosis/immunology
- Thrombosis/pathology
- Thrombosis/prevention & control
- Transplantation, Heterotopic/adverse effects
- Transplantation, Isogeneic/adverse effects
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Affiliation(s)
- Bae Jun Oh
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Stem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Sang-Man Jin
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Stem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Yoonha Hwang
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jin Myung Choi
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Stem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Han-Sin Lee
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Stem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Gyuri Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Stem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Geunsoo Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hyo Jun Park
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Sung Joo Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae Hyeon Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Stem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Seoul, Republic of Korea
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5
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Abstract
Type 1 diabetes is an autoimmune disease that results in the progressive destruction of insulin-producing pancreatic β-cells inside the islets of Langerhans. The loss of this vital population leaves patients with a lifelong dependency on exogenous insulin and puts them at risk for life-threatening complications. One method being investigated to help restore insulin independence in these patients is islet cell transplantation. However, challenges associated with transplant rejection and islet viability have prevented long-term β-cell function. Redox signaling and the production of reactive oxygen species (ROS) by recipient immune cells and transplanted islets themselves are key players in graft rejection. Therefore, dissipation of ROS generation is a viable intervention that can protect transplanted islets from immune-mediated destruction. Here, we will discuss the newly appreciated role of redox signaling and ROS synthesis during graft rejection as well as new strategies being tested for their efficacy in redox modulation during islet cell transplantation.
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6
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7
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Teramura Y, Ekdahl KN, Barbu A. A hybrid of cells and pancreatic islets toward a new bioartificial pancreas. Regen Ther 2016; 3:68-74. [PMID: 31245475 DOI: 10.1016/j.reth.2016.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/31/2016] [Accepted: 02/12/2016] [Indexed: 01/30/2023] Open
Abstract
Cell surface engineering using single-stranded DNA-poly(ethylene glycol)-conjugated phospholipid (ssDNA-PEG-lipid) is useful for inducing cell-cell attachment two and three dimensionally. In this review, we summarize our recent techniques for cell surface engineering and their applications to islet transplantation. Because any DNA sequence can be immobilized onto the cell surface by hydrophobic interactions between ssDNA-PEG-lipid and the cellular membrane without impairing cell function, a cell-cell hybrid can be formed through the DNA hybridization. With this technique, it would be possible to create three-dimensional hybrid structures of pancreatic islets coated with various accessory cells, such as patients' own cells, mesenchymal and adipose-derived stem cells, endothelial progenitor cells, neural crest stem cells or regulatory T cells, which might significantly improve the outcome of islet transplantation in diabetic patients.
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8
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Staels W, De Groef S, Heremans Y, Coppens V, Van Gassen N, Leuckx G, Van de Casteele M, Van Riet I, Luttun A, Heimberg H, De Leu N. Accessory cells for β-cell transplantation. Diabetes Obes Metab 2016; 18:115-24. [PMID: 26289770 DOI: 10.1111/dom.12556] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/22/2015] [Accepted: 08/13/2015] [Indexed: 12/16/2022]
Abstract
Despite recent advances, insulin therapy remains a treatment, not a cure, for diabetes mellitus with persistent risk of glycaemic alterations and life-threatening complications. Restoration of the endogenous β-cell mass through regeneration or transplantation offers an attractive alternative. Unfortunately, signals that drive β-cell regeneration remain enigmatic and β-cell replacement therapy still faces major hurdles that prevent its widespread application. Co-transplantation of accessory non-islet cells with islet cells has been shown to improve the outcome of experimental islet transplantation. This review will highlight current travails in β-cell therapy and focuses on the potential benefits of accessory cells for islet transplantation in diabetes.
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MESH Headings
- Animals
- Cell Proliferation
- Cell Separation/trends
- Cells, Cultured
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Diabetes Mellitus, Type 1/surgery
- Diabetes Mellitus, Type 2/immunology
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Diabetes Mellitus, Type 2/surgery
- Endothelial Progenitor Cells/cytology
- Endothelial Progenitor Cells/immunology
- Endothelial Progenitor Cells/pathology
- Endothelial Progenitor Cells/transplantation
- Graft Rejection/immunology
- Graft Rejection/metabolism
- Graft Rejection/prevention & control
- Graft Survival
- Humans
- Immune Tolerance
- Insulin-Secreting Cells/cytology
- Insulin-Secreting Cells/immunology
- Insulin-Secreting Cells/metabolism
- Insulin-Secreting Cells/transplantation
- Islets of Langerhans Transplantation/adverse effects
- Islets of Langerhans Transplantation/immunology
- Mesenchymal Stem Cell Transplantation/adverse effects
- Mesenchymal Stem Cell Transplantation/trends
- Neural Crest/cytology
- Neural Crest/immunology
- Neural Crest/pathology
- Neural Crest/transplantation
- Stem Cell Transplantation/adverse effects
- Stem Cell Transplantation/trends
- T-Lymphocytes, Regulatory/cytology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/pathology
- T-Lymphocytes, Regulatory/transplantation
- Transplantation, Autologous/adverse effects
- Transplantation, Autologous/trends
- Transplantation, Heterotopic/adverse effects
- Transplantation, Heterotopic/trends
- Transplantation, Homologous/adverse effects
- Transplantation, Homologous/trends
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Affiliation(s)
- W Staels
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
- Division of Pediatric Endocrinology, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium
- Department of Pediatrics and Genetics, Ghent University, Ghent, Belgium
| | - S De Groef
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - Y Heremans
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - V Coppens
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - N Van Gassen
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - G Leuckx
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - M Van de Casteele
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - I Van Riet
- Department Hematology Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - A Luttun
- Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, KU Leuven, Leuven, Belgium
| | - H Heimberg
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - N De Leu
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Endocrinology, UZ Brussel, Brussels, Belgium
- Department of Endocrinology, ASZ Aalst, Aalst, Belgium
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9
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Khosravi-Maharlooei M, Hajizadeh-Saffar E, Tahamtani Y, Basiri M, Montazeri L, Khalooghi K, Kazemi Ashtiani M, Farrokhi A, Aghdami N, Sadr Hashemi Nejad A, Larijani MB, De Leu N, Heimberg H, Luo X, Baharvand H. THERAPY OF ENDOCRINE DISEASE: Islet transplantation for type 1 diabetes: so close and yet so far away. Eur J Endocrinol 2015; 173:R165-83. [PMID: 26036437 DOI: 10.1530/eje-15-0094] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 06/02/2015] [Indexed: 12/12/2022]
Abstract
Over the past decades, tremendous efforts have been made to establish pancreatic islet transplantation as a standard therapy for type 1 diabetes. Recent advances in islet transplantation have resulted in steady improvements in the 5-year insulin independence rates for diabetic patients. Here we review the key challenges encountered in the islet transplantation field which include islet source limitation, sub-optimal engraftment of islets, lack of oxygen and blood supply for transplanted islets, and immune rejection of islets. Additionally, we discuss possible solutions for these challenges.
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Affiliation(s)
- Mohsen Khosravi-Maharlooei
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Ensiyeh Hajizadeh-Saffar
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Yaser Tahamtani
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Mohsen Basiri
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Leila Montazeri
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Keynoosh Khalooghi
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Mohammad Kazemi Ashtiani
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Ali Farrokhi
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Nasser Aghdami
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Anavasadat Sadr Hashemi Nejad
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Mohammad-Bagher Larijani
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Nico De Leu
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Harry Heimberg
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Xunrong Luo
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran Department of Stem Cells and Developmental Biology at Cell Science Research CenterDepartment of Regenerative Medicine at Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndocrinology and Metabolism Research InstituteTehran University of Medical Sciences, Tehran, IranDiabetes Research CenterVrije Universiteit Brussel, Laarbeeklaan 103, Brussels, BelgiumDivision of Nephrology and HypertensionDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Developmental BiologyUniversity of Science and Culture, ACECR, Tehran 148-16635, Iran
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10
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Nagaraju S, Bottino R, Wijkstrom M, Hara H, Trucco M, Cooper DK. Islet xenotransplantation from genetically engineered pigs. Curr Opin Organ Transplant 2013; 18:695-702. [PMID: 24126804 DOI: 10.1097/MOT.0000000000000020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Pigs have emerged as potential sources of islets for clinical transplantation. Wild-type porcine islets (adult and neonatal) transplanted into the portal vein have successfully reversed diabetes in nonhuman primates. However, there is a rapid loss of the transplanted islets on exposure to blood, known as the instant blood-mediated inflammatory reaction (IBMIR), as well as a T-cell response that leads to rejection of the graft. RECENT FINDINGS Genetically modified pig islets offer a number of potential advantages, particularly with regard to reducing the IBMIR-related graft loss and protecting the islets from the primate immune response. Emerging data indicate that transgenes specifically targeted to pig β cells using an insulin promoter (in order to maximize target tissue expression while limiting host effects) can be achieved without significant effects on the pig's glucose metabolism. SUMMARY Experience with the transplantation of islets from genetically engineered pigs into nonhuman primates is steadily increasing, and has involved the deletion of pig antigenic targets to reduce the primate humoral response, the expression of transgenes for human complement-regulatory and coagulation-regulatory proteins, and manipulations to reduce the effect of the T-cell response. There is increasing evidence of the advantages of using genetically engineered pigs as sources of islets for future clinical trials.
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11
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Kanak MA, Takita M, Kunnathodi F, Lawrence MC, Levy MF, Naziruddin B. Inflammatory response in islet transplantation. Int J Endocrinol 2014; 2014:451035. [PMID: 24883060 PMCID: PMC4021753 DOI: 10.1155/2014/451035] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/04/2014] [Accepted: 02/12/2014] [Indexed: 12/23/2022] Open
Abstract
Islet cell transplantation is a promising beta cell replacement therapy for patients with brittle type 1 diabetes as well as refractory chronic pancreatitis. Despite the vast advancements made in this field, challenges still remain in achieving high frequency and long-term successful transplant outcomes. Here we review recent advances in understanding the role of inflammation in islet transplantation and development of strategies to prevent damage to islets from inflammation. The inflammatory response associated with islets has been recognized as the primary cause of early damage to islets and graft loss after transplantation. Details on cell signaling pathways in islets triggered by cytokines and harmful inflammatory events during pancreas procurement, pancreas preservation, islet isolation, and islet infusion are presented. Robust control of pre- and peritransplant islet inflammation could improve posttransplant islet survival and in turn enhance the benefits of islet cell transplantation for patients who are insulin dependent. We discuss several potent anti-inflammatory strategies that show promise for improving islet engraftment. Further understanding of molecular mechanisms involved in the inflammatory response will provide the basis for developing potent therapeutic strategies for enhancing the quality and success of islet transplantation.
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Affiliation(s)
- Mazhar A. Kanak
- Institute for Biomedical Studies, Baylor University, Waco, TX 76712, USA
| | - Morihito Takita
- Islet Cell Laboratory, Baylor Research Institute, Dallas, TX 75204, USA
| | - Faisal Kunnathodi
- Islet Cell Laboratory, Baylor Research Institute, Dallas, TX 75204, USA
| | | | - Marlon F. Levy
- Baylor Annette C. and Harold C. Simmons Transplant Institute, 3410 Worth Street, Dallas, TX 75246, USA
| | - Bashoo Naziruddin
- Baylor Annette C. and Harold C. Simmons Transplant Institute, 3410 Worth Street, Dallas, TX 75246, USA
- *Bashoo Naziruddin:
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12
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Gao Y, Guo Y, Duan A, Cheng D, Zhang S, Wang H. Optimization of culture conditions for maintaining porcine induced pluripotent stem cells. DNA Cell Biol 2013; 33:1-11. [PMID: 24256201 DOI: 10.1089/dna.2013.2095] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Ground state porcine induced pluripotent stem cells (piPSCs), which retain the potential to generate chimeric animal and germline transmission, are difficult to produce. This study investigated morphological and biological progression at the early stage of porcine somatic cell reprogramming, and explored suitable conditions to increase the induction efficiency of piPSCs. A cocktail of defined transcription factors was used to generate piPSCs. The amphotropic retrovirus, which carried human OCT4 (O), SOX2 (S), KLF4 (K), C-MYC (M), TERT (T), and GFP, were used to infect porcine embryonic fibroblasts (PEFs). The number of clones derived from OSKM (4F) and OSKMT (4F+T) was significantly higher than that from SKM (3F) and SKMT (3F+T), suggesting that OCT4 played a critical role in regulating porcine cell reprogramming. The number of alkaline phosphatase-positive clones from a medium with leukemia inhibitory factor (LIF) and basic fibroblast growth factor (bFGF) (M1 medium) was significantly higher than that with insulin and 2i PD0325901/CHIR99021 (M2 medium), indicating that insulin and 2i could not effectively maintain piPSC propagation. In the M1 medium, piPSC lines could not maintain the typical self-renewal morphology on gelatin-coated and Matrigel-coated plates. Without the mouse embryonic fibroblast (MEF) feeder, piPSCs started to simultaneously differentiate. Based on the potential for self-renewal and activation of pluripotent markers, we found that the culture condition of 4F+T plus LIF and bFGF plus MEF feeder promoted PEF reprogramming more efficiently than the other conditions tested here. Two piPSC lines (IB-1 and IB-2) were derived and maintained for up to 20 passages in vitro.
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Affiliation(s)
- Yi Gao
- Department of Animal Biotechnology, College of Veterinary Medicine , Northwest A&F University, Yangling, Shaanxi, China
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13
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Abstract
Early innate inflammatory reaction strongly affects islet engraftment and survival after intrahepatic transplantation. This early immune response is triggered by ischemia-reperfusion injury and instant blood mediated inflammatory reaction (IBMIR) occurring hours and days after islet infusion. Evidence in both mouse model and in human counterpart suggest the involvement of coagulation, complement system, and proinflammatory chemokines/cytokines. Identification and targeting of pathway(s), playing a role as "master regulator(s)" in post-transplant detrimental inflammatory events, is now mandatory to improve islet transplantation success. This review will focus on inflammatory pathway(s) differentially modulated by islet isolation and mainly associated with the early post-transplant events. Moreover, we will take into account anti-inflammatory strategies that have been tested at 2 levels: on the graft, ex vivo, during islet culture (i.e., donor) and/or on the graft site, in vivo, early after islet infusion (i.e., recipient).
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Affiliation(s)
- Antonio Citro
- Beta Cell Biology Unit, Diabetes Research Institute, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy,
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14
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Coppens V, Heremans Y, Leuckx G, Suenens K, Jacobs-Tulleneers-Thevissen D, Verdonck K, Luttun A, Heimberg H, De Leu N. Reversal of hyperglycemia in diabetic mice by a marginal islet mass together with human blood outgrowth endothelial cells is independent of the delivery technique and blood clot-induced processes. Islets 2013; 5:196-200. [PMID: 24213480 PMCID: PMC4010571 DOI: 10.4161/isl.26778] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We recently reported that human blood outgrowth endothelial cells (BOEC) are supportive to reverse hyperglycemia in marginal islet mass-transplanted diabetic mice. In this report, we investigated whether the observed effect was evoked by islet packing in a blood clot prior to transplantation or could be mimicked by another method of islet/cell delivery. A marginal islet mass with or without BOEC was grafted underneath the kidney capsule of diabetic recipient mice via a (blood clot-independent) tubing system and compared with previous islet packing in a blood clot. The effect on metabolic outcome of both delivery techniques as well as the additive effect of BOEC was subsequently evaluated. Marginal islet mass transplantation via a tubing system required more islets per recipient than via a blood clot. Using the tubing method, transplantation of a marginal islet mass combined with 5x10 (5) BOEC resulted in reversal of hyperglycemia, improved glucose tolerance and increased kidney insulin content. The present study provides evidence that (1) previous packing in a blood clot results in more effective islet delivery compared with tubing; (2) BOEC exert a beneficial effect on marginal islet transplantation, independent of grafting technique and potential blood clot-induced processes. These data further support the use of BOEC in (pre-) clinical studies that aim to improve current islet transplantation protocols.
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Affiliation(s)
- Violette Coppens
- Diabetes Research Center; Vrije Universiteit Brussel; Brussels, Belgium
| | - Yves Heremans
- Diabetes Research Center; Vrije Universiteit Brussel; Brussels, Belgium
| | - Gunter Leuckx
- Diabetes Research Center; Vrije Universiteit Brussel; Brussels, Belgium
| | - Krista Suenens
- Diabetes Research Center; Vrije Universiteit Brussel; Brussels, Belgium
| | | | - Kristoff Verdonck
- Department of Cardiovascular Sciences; Center for Molecular and Vascular Biology; KU Leuven; Leuven, Belgium
| | - Aernout Luttun
- Department of Cardiovascular Sciences; Center for Molecular and Vascular Biology; KU Leuven; Leuven, Belgium
| | - Harry Heimberg
- Diabetes Research Center; Vrije Universiteit Brussel; Brussels, Belgium
| | - Nico De Leu
- Diabetes Research Center; Vrije Universiteit Brussel; Brussels, Belgium
- Correspondence to: Nico De Leu,
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15
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Jung HS, Kim MJ, Hong SH, Lee YJ, Kang S, Lee H, Chung SS, Park JS, Park KS. The potential of endothelial colony-forming cells to improve early graft loss after intraportal islet transplantation. Cell Transplant 2013; 23:273-83. [PMID: 23294520 DOI: 10.3727/096368912x661364] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Early graft loss in islet transplantation means that a large amount of donor islets is required. Endothelial cells and endothelial colony-forming cells (ECFCs) have been reported to improve instant blood-mediated inflammatory reaction (IBMIR) in vitro. In this study, we examined if ECFC-coated porcine islets would prevent early graft loss in vivo. Human ECFCs were prepared from cord blood and cocultured with islets to make composite grafts. Diabetic nude mice underwent intraportal transplantation. Blood glucose levels were monitored, and morphological examination of the grafts along with analysis of the components of IBMIR and inflammatory reaction were performed with the liver tissues. The ECFC-coated islets significantly decreased blood glucose levels immediately after transplantation compared to the uncoated islets. Composite ECFC islet grafts were observed in the liver sections, associated with a more insulin(+) area compared to that of the uncoated group within 48 h after transplantation. Deposition of CD41a, C5b-9, and CD11b(+) cells was also decreased in the ECFC-coated group. Expression of porcine HMGB1 and mouse TNF-α was increased in the transplantated groups compared to the sham operation group, with a trend of a decreasing trend across the uncoated group, the ECFC-coated group, and the sham group. We demonstrated that the composite ECFC porcine islets transplanted into the portal vein of nude mice improved early graft loss and IBMIR in vivo.
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Affiliation(s)
- Hye Seung Jung
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
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16
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Lingwal N, Padmasekar M, Samikannu B, Bretzel RG, Preissner KT, Linn T. Inhibition of gelatinase B (matrix metalloprotease-9) activity reduces cellular inflammation and restores function of transplanted pancreatic islets. Diabetes 2012; 61:2045-53. [PMID: 22586582 PMCID: PMC3402316 DOI: 10.2337/db11-1143] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Islet transplantation provides an approach to compensate for loss of insulin-producing cells in patients with type 1 diabetes. However, the intraportal route of transplantation is associated with instant inflammatory reactions to the graft and subsequent islet destruction as well. Although matrix metalloprotease (MMP)-2 and -9 are involved in both remodeling of extracellular matrix and leukocyte migration, their influence on the outcome of islet transplantation has not been characterized. We observed comparable MMP-2 mRNA expressions in control and transplanted groups of mice, whereas MMP-9 mRNA and protein expression levels increased after islet transplantation. Immunostaining for CD11b (Mac-1)-expressing leukocytes (macrophage, neutrophils) and Ly6G (neutrophils) revealed substantially reduced inflammatory cell migration into islet-transplanted liver in MMP-9 knockout recipients. Moreover, gelatinase inhibition resulted in a significant increase in the insulin content of transplanted pancreatic islets and reduced macrophage and neutrophil influx compared with the control group. These results indicate that the increase of MMP-9 expression and activity after islet transplantation is directly related to enhanced leukocyte migration and that early islet graft survival can be improved by inhibiting MMP-9 (gelatinase B) activity.
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Affiliation(s)
- Neelam Lingwal
- Third Medical Department, Faculty of Medicine, Justus-Liebig University, Giessen, Germany
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17
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Cheng D, Li Z, Liu Y, Gao Y, Wang H. Kinetic Analysis of Porcine Fibroblast Reprogramming Toward Pluripotency by Defined Factors. Cell Reprogram 2012; 14:312-23. [DOI: 10.1089/cell.2012.0025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- De Cheng
- College of Veterinary Medicine, Shaanxi Center for Stem Cell Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhenzhen Li
- College of Veterinary Medicine, Shaanxi Center for Stem Cell Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yajun Liu
- College of Veterinary Medicine, Shaanxi Center for Stem Cell Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yi Gao
- College of Veterinary Medicine, Shaanxi Center for Stem Cell Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huayan Wang
- College of Veterinary Medicine, Shaanxi Center for Stem Cell Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
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18
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Tang L, Yin Y, Zhou H, Song G, Fan A, Tang B, Shi W, Li Z. Proliferative capacity and pluripotent characteristics of porcine adult stem cells derived from adipose tissue and bone marrow. Cell Reprogram 2012; 14:342-52. [PMID: 22775457 DOI: 10.1089/cell.2011.0098] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Direct reprogramming of somatic cells to induced pluripotent stem cells (iPSCs) provides an invaluable resource for regenerative medicine. Because of some ethical and logistical barriers, human iPSCs cannot be used to generate a chimera, which is one of markers representing pluripotency. As the most attractive model for preclinical studies, pigs offer another path to improve clinical medicine. In this study, porcine adult stem cells (pASCs), including adipose mesenchymal stem cells (AMSCs) and bone marrow mesenchymal stem cells (BMSCs), were collected and cultured under the same conditions in vitro. Real-time PCR, immunocytochemical staining, apoptosis analysis, and induced differentiation and reprogramming techniques were used to investigate the proliferative capacity and pluripotent characteristics of pASCs. Our results showed that both AMSCs and BMSCs displayed a similar immunophenotype, and their proliferative capacity appeared as a downward trend as the cell passage number increased. The cell proliferative capacity of AMSCs was significantly lower than that of BMSCs (p<0.05). Moreover, each type of pASCs went through 20 passages without undergoing alterations in the expression of reprogramming transcriptional factors (Oct4, Sox2, c-Myc, and Nanog). All pASCs had adipogenic and osteogenic differentiation potential. In addition, they also could be reprogrammed to pig induced pluripotent stem cells (piPSCs) with similar time and efficiency. In conclusion, porcine BMSCs had a higher proliferative capacity than AMSCs, and the pluripotency of pASCs was stable in long-term culture.
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Affiliation(s)
- Lina Tang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, the Center for Animal Embryo Engineering of Jilin Province, College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin, China
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19
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Park JY, Park MR, Bui HT, Kwon DN, Kang MH, Oh M, Han JW, Cho SG, Park C, Shim H, Kim HM, Kang MJ, Park JK, Lee JW, Lee KK, Kim JH. α1,3-galactosyltransferase deficiency in germ-free miniature pigs increases N-glycolylneuraminic acids as the xenoantigenic determinant in pig-human xenotransplantation. Cell Reprogram 2012; 14:353-63. [PMID: 22775484 DOI: 10.1089/cell.2011.0083] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this study, we examined whether Hanganutziu-Deicher (H-D) antigens are important as an immunogenic non-α1,3-galactose (Gal) epitope in pigs with a disrupted α1,3-galactosyltransferase gene. The targeting efficiency of the AO blood genotype was achieved (2.2%) in pig fibroblast cells. A total of 1800 somatic cell nuclear transfer (SCNT) embryos were transferred to 10 recipients. One recipient developed to term and naturally delivered two piglets. The α1,3-galactosyltransferase activity in lung, liver, spleen, and testis of heterozygote α1,3-galactosyltransferase gene knockout (GalT-KO) pigs was significantly decreased, whereas brain and heart showed very low decreasing levels of α1,3-galactosyltransferase activity when compared to those of control. Enzyme-linked lectinosorbent assay showed that the heterozygote GalT-KO pig had more sialylα2,6- and sialylα2,3-linked glycan than the control. Furthermore, the heart, liver, and kidney of the heterozygote GalT-KO pig had a higher N-glycolylneuraminic acid (Neu5Gc) content than the control, whereas the lung of the heterozygote GalT-KO pig had Neu5Gc content similar to the control. Collectively, the data strongly indicated that Neu5Gc is a more critical xenoantigen to overcoming the next acute immune rejection in pig to human xenotransplantation.
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Affiliation(s)
- Jong-Yi Park
- Department of Animal Biotechnology, Konkuk University, Seoul, Republic of Korea
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20
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van der Windt DJ, Marigliano M, He J, Votyakova TV, Echeverri GJ, Ekser B, Ayares D, Lakkis FG, Cooper DKC, Trucco M, Bottino R. Early islet damage after direct exposure of pig islets to blood: has humoral immunity been underestimated? Cell Transplant 2012; 21:1791-802. [PMID: 22776064 DOI: 10.3727/096368912x653011] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Currently, islet transplantation as a cell therapeutic option for type 1 diabetes occurs via islet injection into the portal vein. Direct contact between islets and blood is a pathophysiological "provocation" that results in the instant blood-mediated inflammatory reaction (IBMIR) and is associated with early islet loss. However, the nature of the various insults on the islets in the blood stream remains mostly unknown. To gain insight into the mechanisms, we utilized a simplified in vitro model in which islets were exposed to blood in different clinically relevant but increasingly challenging, autologous, allogeneic, and xenogeneic combinations. Irrespective of the blood type and species compatibility, islets triggered blood clotting. Islet damage was worse as islet, and blood compatibility diminished, with substantial islet injury after exposure of porcine islets to human blood. Islet damage involved membrane leakage, antibody deposition, complement activation, positive staining for the membrane attack complex, and mitochondrial dysfunction. Islet damage occurred even after exposure to plasma only, and specific complement inactivation and neutralization of IgM substantially prevented islet damage, indicating the importance of humoral immunity. Efficacious measures are needed to reduce this injury, especially in view of a potential clinical use of porcine islets to treat diabetes.
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Affiliation(s)
- Dirk J van der Windt
- Division of Immunogenetics, Department of Pediatrics, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
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21
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Montserrat N, De Oñate L, Garreta E, Gonzãlez F, Adamo A, Eguizãbal C, Häfner S, Vassena R, Belmonte JCI. Generation of Feeder-Free Pig Induced Pluripotent Stem Cells without Pou5f1. Cell Transplant 2012; 21:815-25. [DOI: 10.3727/096368911x601019] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The pig represents an ideal large-animal model, intermediate between rodents and humans, for the preclinical assessment of emerging cell therapies. As no validated pig embryonic stem (pES) cell lines have been derived so far, pig induced pluripotent stem cells (piPSCs) should offer an alternative source of undifferentiated cells to advance regenerative medicine research from bench to clinical trial. We report here for the first time the derivation of piPSCs from adult fibroblast with only three transcription factors: Sox2 (sex determining region Y-box 2), Klf4 (Krüppel-like factor 4), and c-Myc (avian myelocytomatosis viral oncogene homolog). We have been able to demonstrate that exogenous Pou5f1 (POU domain class 5 transcription factor 1; abbreviated as Octamer-4: Oct4) is dispensable to achieve and maintain pluripotency in the generation of piPSCs. To the best of our knowledge, this is also the first report of somatic reprogramming in any species without the overexpression, either directly or indirectly, of Oct4. Moreover, we were able to generate piPSCs without the use of feeder cells, approaching thus xeno-free conditions. Our work paves the way for the derivation of clinical grade piPSCs for regenerative medicine.
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Affiliation(s)
- Nuria Montserrat
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Lorena De Oñate
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Elena Garreta
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Federico Gonzãlez
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Antonio Adamo
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Cristina Eguizãbal
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Sophia Häfner
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Rita Vassena
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
| | - Juan Carlos Izpisua Belmonte
- Center for Regenerative Medicine in Barcelona, Dr. Aiguader, 88, 08003, Barcelona, Spain
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA, USA
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22
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Cantaluppi V, Biancone L, Figliolini F, Beltramo S, Medica D, Deregibus MC, Galimi F, Romagnoli R, Salizzoni M, Tetta C, Segoloni GP, Camussi G. Microvesicles derived from endothelial progenitor cells enhance neoangiogenesis of human pancreatic islets. Cell Transplant 2012; 21:1305-20. [PMID: 22455973 DOI: 10.3727/096368911x627534] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The efficacy of islet transplantation is limited by poor graft vascularization. We herein demonstrated that microvesicles (MVs) released from endothelial progenitor cells (EPCs) enhanced human islet vascularization. After incorporation into islet endothelium and β-cells, EPC-derived MVs favored insulin secretion, survival, and revascularization of islets transplanted in SCID mice. MVs induced in vitro islet endothelial cell proliferation, migration, resistance to apoptosis, and organization in vessel-like structures. Moreover, MVs partially overcame the antiangiogenic effect of rapamycin and inhibited endothelial-leukocyte interaction via L-selectin and CD40. MVs were previously shown to contain defined patterns of mRNAs. Here we demonstrated that MVs carried the proangiogenic miR-126 and miR-296 microRNAs (miRNAs). MVs pretreated with RNase or derived from Dicer knocked-down EPCs showed a reduced angiogenic effect. In addition, MVs overcame the antiangiogenic effect of the specific antagomiRs of miR-126 and miR-296, suggesting a relevant contribution of miRNAs delivered by MVs to islet endothelium. Microarray analysis of MV-stimulated islet endothelium indicated the upregulation of mRNAs coding for factors involved in endothelial proliferation, differentiation, and angiogenesis. In addition, MVs induced the activation of the PI3K-Akt and eNOS signaling pathways in islet endothelium. These results suggest that MVs activate an angiogenic program in islet endothelium that may sustain revascularization and β-cell function.
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Affiliation(s)
- Vincenzo Cantaluppi
- Research Center for Experimental Medicine (CeRMS), University of Torino, Torino, Italy
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Nilsson B, Ekdahl KN, Korsgren O. Control of instant blood-mediated inflammatory reaction to improve islets of Langerhans engraftment. Curr Opin Organ Transplant. 2011;16:620-626. [PMID: 21971510 DOI: 10.1097/mot.0b013e32834c2393] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Transplantation of islets of Langerhans is an emerging treatment procedure for patients with severe type 1 diabetes, but despite recent progress the procedure is associated with massive tissue loss caused by an inflammatory reaction termed instant blood-mediated inflammatory reaction (IBMIR). This reaction involves activation of the complement and coagulation cascades, ultimately resulting in clot formation and infiltration of leukocytes into the islets, which leads to disruption of islet integrity and islet destruction. RECENT FINDINGS In this review we discuss basic mechanisms underlying the IBMIR and emerging strategies for therapeutic regulation of the IBMIR. These include the use of selective inhibitors of the coagulation and complement systems, different procedures to coat the surface of the islets as well as the development of composite islet-endothelial cell grafts. SUMMARY The IBMIR is a major cause of tissue loss in clinical islet transplantation, and most likely in other cell therapies in which cells are exposed to blood. Thus, it is an obvious target for therapeutic intervention. Due to its complexity, it is necessary to use different strategies to control the IBMIR.
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Chhabra P, Brayman KL. Current status of immunomodulatory and cellular therapies in preclinical and clinical islet transplantation. J Transplant. 2011;2011:637692. [PMID: 22046502 PMCID: PMC3199196 DOI: 10.1155/2011/637692] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2011] [Accepted: 07/11/2011] [Indexed: 02/08/2023] Open
Abstract
Clinical islet transplantation is a β-cell replacement strategy that represents a possible definitive intervention for patients with type 1 diabetes, offering substantial benefits in terms of lowering daily insulin requirements and reducing incidences of debilitating hypoglycemic episodes and unawareness. Despite impressive advances in this field, a limiting supply of islets, inadequate means for preventing islet rejection, and the deleterious diabetogenic and nephrotoxic side effects associated with chronic immunosuppressive therapy preclude its wide-spread applicability. Islet transplantation however allows a window of opportunity for attempting various therapeutic manipulations of islets prior to transplantation aimed at achieving superior transplant outcomes. In this paper, we will focus on the current status of various immunosuppressive and cellular therapies that promote graft function and survival in preclinical and clinical islet transplantation with special emphasis on the tolerance-inducing capacity of regulatory T cells as well as the β-cells regenerative capacity of stem cells.
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Ma X, Ye B, Gao F, Liang Q, Dong Q, Liu Y, Rong P, Wang W, Yi S. Tissue factor knockdown in porcine islets: an effective approach to suppressing the instant blood-mediated inflammatory reaction. Cell Transplant 2011; 21:61-71. [PMID: 21669037 DOI: 10.3727/096368911x580563] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Tissue factor (TF) expression on islets has been shown to trigger instant blood-mediated inflammatory reaction (IBMIR), leading to rapid islet loss in portal vein islet transplantation. This study investigated whether antisense RNA-mediated TF gene knockdown in islets could suppress IBMIR as a strategy to overcome IBMIR. Neonatal porcine islet cell clusters (NICCs) were transfected with or without TF-specific antisense RNA or a nonspecific RNA by a lipid-based method. Expression of both TF gene and protein in NICCs was analyzed after transfection by real-time PCR, Western blot, and FACS, respectively. The impact of antisense RNA transfection on NICC viability and in vitro function was examined by FACS and insulin release test, respectively. The effect of TF knockdown in NICCs on IBMIR was assessed with an in vitro tubing loop assay using human blood. A significant reduction in TF gene and protein expression was achieved in TF antisense RNA but not control RNA transfected NICCs, which did not affect NICCs' viability or their insulin secreting capacity. Incubation of TF antisense RNA transfected with human blood resulted in a considerable reduction in blood clot formation, platelet consumption, and complement and coagulation activation compared to that observed in the loops containing human blood and untreated or control RNA transfected NICCs. Consistent with these findings, infiltrating neutrophils in the blood clots with entrapped TF antisense RNA transfected NICCs was also reduced substantially compared to that seen in the clots containing untreated or control RNA transfected NICCs. This study presents a nontoxic TF antisense RNA-mediated TF knockdown in porcine islets that leads to an effective suppression of IBMIR, suggesting a potentially new strategy to improve islet transplantation outcomes.
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Affiliation(s)
- Xiaoqian Ma
- Cell Transplantation and Gene Therapy Institute, The Third Xiang Ya Hospital of Central South University, Changsha, Hunan, China
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Kim JH, Oh BJ, Lee HN, Park HS, Park SG, Park KS. Endothelial colony-forming cell coating of pig islets prevents xenogeneic instant blood-mediated inflammatory reaction. Cell Transplant 2011; 20:1805-15. [PMID: 21396165 DOI: 10.3727/096368911x566154] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Instant blood-mediated inflammatory reaction (IBMIR) causes rapid islet loss in islet transplantation. Endothelial colony-forming cells (ECFCs) display unique abilities to promote angiogenesis and repair vascular injury compared to those of endothelial cells (ECs), which inhibits the allogeneic and xenogeneic IBMIR. We investigated the coating of pig islets with ex vivo-expanded ECFCs as a strategy to overcome xenogeneic IBMIR. Porcine islets were cocultured with human ECFCs in a specially modified culture medium for 2 days to obtain 70-90% coverage. The coating of pig islets with human ECFCs did not affect the glucose-stimulated insulin secretion capacity or diabetes reversal rate after the transplantation of a marginal islet mass under the kidney capsules of diabetic nude mice compared to that of untreated islets. Uncoated islets, PBS control without islets, and the ECFC-coated islets were examined with an in vitro tubing loop assay using human blood. After 60 min of incubation in human blood, the ECFC-coated islets showed platelet consumption inhibition and low C3a and TAT assay results compared to those of the uncoated islets. Furthermore, there was very little macroscopic or microscopic clotting in the human ECFC-coated pig islets. The protective effect was more prominent compared to that of human EC coating of pig islets in our previous study. We investigated the changes in human-specific MCP-1, IL-8, and tissue factor (TF) levels after the coating of pig islets with human ECFCs or human ECs. The IL-8 levels after coating pig islets with ECFCs were significantly lower than those after coating pig islets with ECs, but there were no significant differences in the MCP-1 or TF levels between the ECFCs and ECs. In conclusion, the coating of pig islets with ECFCs completely prevented all components of xenogeneic IBMIR. ECFCs may be a better source of protection against xenogeneic IBMIR than are mature ECs.
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Affiliation(s)
- Jae Hyeon Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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Lee N, Kim H, Choi SH, Park M, Kim D, Kim HC, Choi Y, Lin S, Kim BH, Jung HS, Kim H, Park KS, Moon WK, Hyeon T. Magnetosome-like ferrimagnetic iron oxide nanocubes for highly sensitive MRI of single cells and transplanted pancreatic islets. Proc Natl Acad Sci U S A 2011; 108:2662-7. [PMID: 21282616 PMCID: PMC3041081 DOI: 10.1073/pnas.1016409108] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
For ultrasensitive magnetic resonance imaging (MRI), magnetic nanoparticles with extremely high r2 relaxivity are strongly desired. Magnetosome-like nanoparticles were prepared by coating polyethylene glycol-phospholipid (PEG-phospholipid) onto ferrimagnetic iron oxide nanocubes (FIONs). FIONs exhibited a very high relaxivity (r2) of 324 mM(-1) s(-1), allowing efficient labeling of various kinds of cells. The magnetic resonance (MR) imaging of single cells labeled with FIONs is demonstrated not only in vitro but also in vivo. Pancreatic islet grafts and their rejection could be imaged using FIONs on a 1.5 T clinical MRI scanner. The strong contrast effect of FIONs enabled MR imaging of transplanted islets in small rodents as well as in large animals. Therefore, we expect that MR imaging of pancreatic islet grafts using FIONs has the potentials for clinical applications. Furthermore, FIONs will enable highly sensitive noninvasive assessment after cell transplantation.
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Affiliation(s)
- Nohyun Lee
- National Creative Research Initiative Center for Oxide Nanocrystalline Materials, World Class University Program of Chemical Convergence for Energy and Environment, and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea
| | - Hyoungsu Kim
- Diagnostic Radiology, Seoul National University Hospital, and the Institute of Radiation Medicine, Medical Research Center, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea
| | - Seung Hong Choi
- Diagnostic Radiology, Seoul National University Hospital, and the Institute of Radiation Medicine, Medical Research Center, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea
| | - Mihyun Park
- National Creative Research Initiative Center for Oxide Nanocrystalline Materials, World Class University Program of Chemical Convergence for Energy and Environment, and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea
| | - Dokyoon Kim
- National Creative Research Initiative Center for Oxide Nanocrystalline Materials, World Class University Program of Chemical Convergence for Energy and Environment, and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea
| | - Hyo-Cheol Kim
- Diagnostic Radiology, Seoul National University Hospital, and the Institute of Radiation Medicine, Medical Research Center, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea
| | - Yoonseok Choi
- Diagnostic Radiology, Seoul National University Hospital, and the Institute of Radiation Medicine, Medical Research Center, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea
| | - Shunmei Lin
- Diagnostic Radiology, Seoul National University Hospital, and the Institute of Radiation Medicine, Medical Research Center, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea
| | - Byung Hyo Kim
- National Creative Research Initiative Center for Oxide Nanocrystalline Materials, World Class University Program of Chemical Convergence for Energy and Environment, and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea
| | - Hye Seung Jung
- Department of Internal Medicine, Seoul National University College of Medicine, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea; and
| | - Hyeonjin Kim
- Diagnostic Radiology, Seoul National University Hospital, and the Institute of Radiation Medicine, Medical Research Center, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University of Medicine and Science, Incheon 406-840, Korea
| | - Kyong Soo Park
- Department of Internal Medicine, Seoul National University College of Medicine, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea; and
| | - Woo Kyung Moon
- Diagnostic Radiology, Seoul National University Hospital, and the Institute of Radiation Medicine, Medical Research Center, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea
| | - Taeghwan Hyeon
- National Creative Research Initiative Center for Oxide Nanocrystalline Materials, World Class University Program of Chemical Convergence for Energy and Environment, and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea
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Fink H, Hong J, Drotz K, Risberg B, Sanchez J, Sellborn A. An in vitro study of blood compatibility of vascular grafts made of bacterial cellulose in comparison with conventionally-used graft materials. J Biomed Mater Res A 2011; 97:52-8. [DOI: 10.1002/jbm.a.33031] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 09/24/2010] [Accepted: 12/07/2010] [Indexed: 11/09/2022]
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Montserrat N, Bahima EG, Batlle L, Häfner S, Rodrigues AM, González F, Izpisúa Belmonte JC. Generation of pig iPS cells: a model for cell therapy. J Cardiovasc Transl Res 2011; 4:121-30. [PMID: 21088946 DOI: 10.1007/s12265-010-9233-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 10/19/2010] [Indexed: 01/12/2023]
Abstract
Reprogramming of pig somatic cells to induced pluripotent stem cells provides a tremendous advance in the field of regenerative medicine since the pig represents an ideal large animal model for the preclinical testing of emerging cell therapies. However, the current generation of pig-induced pluripotent stem cells (piPSCs) require the use of time-consuming and laborious retroviral or lentiviral transduction approaches, in order to ectopically express the pluripotency-associated transcription factors Oct4, Sox2, Klf4 and c-Myc, in the presence of feeder cells. Here, we describe a simple method to produce piPSC with a single transfection of a CAG-driven polycistronic plasmid expressing Oct4, Sox2, Klf4, c-Myc and a green fluorescent protein (GFP) reporter gene, in gelatine-coated plates, with or without feeder cells. In our system, the derivation of piPSCs from adult pig ear fibroblasts on a gelatine coating showed a higher efficiency and rate of reprogramming when compared with three consecutive retroviral transductions of a similar polycistronic construct. Our piPSCs expressed the classical embryonic stem cell markers, exhibit a stable karyotype and formed teratomas. Moreover, we also developed a simple method to generate in vitro spontaneous beating cardiomiocyte-like cells from piPSCs. Overall, our preliminary results set the bases for the massive production of xeno-free and integration-free piPSCs and provide a powerful tool for the preclinical application of iPSC technology in a large animal setting.
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van Poll D, Nahmias Y, Soto-Gutierrez A, Ghasemi M, Yagi H, Kobayashi N, Yarmush ML, Hertl M. Human immune reactivity against liver sinusoidal endothelial cells from GalTα(1,3)GalT-deficient pigs. Cell Transplant 2010; 19:783-9. [PMID: 20573304 DOI: 10.3727/096368910x508898] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Elimination of galactose-α(1,3)galactose (Gal) expression in pig organs has been previously shown to prevent hyperacute xenograft rejection. However, naturally present antibodies to non-Gal epitopes activate endothelial cells, leading to acute humoral xenograft rejection. Still, it is unknown whether xenogeneic pig liver sinusoidal endothelial cells (LSECs) from α(1,3)galactosyltransferase (GalT)-deficient pigs are damaged by antibody and complement-mediated mechanisms. The present study examined the xeno-antibody response of LSECs from GalT-deficient and wild pigs. Isolated LSEC from wild-type and GalT pigs were expose to human and baboon sera; IgM and IgG binding was analyzed by flow cytometry. Complement activation (C3a and CH50) was quantified in vitro from serum-exposed LSEC cultures using Enzyme-Linked ImmunoSorbent assay (ELISA). Levels of complement-activated cytotoxicity (CAC) were also determined by a fluorescent Live-Dead Assay and by the quantification of LDH release. IgM binding to GalT knockout (KO) LSECs was significantly lower (80% human and 87% baboon) compare to wild-type pig LSEC. IgG binding was low in all groups. Moreover, complement activation (C3a and CH50) levels released following exposure to human or baboon sera were importantly reduced (42% human and 52% baboon), CAC in GalT KO LSECs was reduced by 60% in human serum and by 72% in baboon serum when compared to wild-type LSECs, and LDH release levels were reduced by 37% and 57%, respectively. LSECs from GalT KO pigs exhibit a significant protection to humoral-induced cell damage compared to LSECs from wild pigs when exposed to human serum. Although insufficient to inhibit xenogeneic reactivity completely, transgenic GalT KO expression on pig livers might contribute to a successful application of clinical xenotransplantation in combination with other protective strategies.
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Affiliation(s)
- Daan van Poll
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and the Shriners Hospitals for Children, Center for Engineering in Medicine, Boston, MA 02114, USA
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Piemonti L, Guidotti LG, Battaglia M. Modulation of Early Inflammatory Reactions to Promote Engraftment and Function of Transplanted Pancreatic Islets in Autoimmune Diabetes. Advances in Experimental Medicine and Biology 2010. [DOI: 10.1007/978-90-481-3271-3_32] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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