1
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Schubert U, Lehmann S, Schmid J, Morawietz H, Bornstein SR, Ludwig B. The Adrenal Gland and Pancreatic Islets - A Beneficial Endocrine Alliance. Horm Metab Res 2024; 56:286-293. [PMID: 38471570 DOI: 10.1055/a-2256-6344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Intraportal islet transplantation in patients with type 1 diabetes enables restoration of glucose-regulated insulin secretion. However, several factors hamper a widespread application and long-term success: chronic hypoxia, an inappropriate microenvironment and suppression of regenerative and proliferative potential by high local levels of immunosuppressive agents. Therefore, the identification of alternative and superior transplant sites is of major scientific and clinical interest. Here, we aim to evaluate the adrenal as an alternative transplantation site. The adrenal features a particular microenvironment with extensive vascularization, anti-apoptotic and pro-proliferative, anti-inflammatory and immunosuppressive effects. To validate this novel transplantation site, an in vitro co-culture system of adrenal cells and pancreatic islets was established and viability, islet survival, functional potency and antioxidative defense capacity were evaluated. For in vivo validation, an immune-deficient diabetic mouse model for intra-adrenal islet transplantation was applied. The functional capacity of intra-adrenally grafted islets to reverse diabetes was compared to a standard islet transplant model and measures of engraftment such as vascular integration were evaluated. The presence of adrenal cells positively impacted on cell metabolism and oxidative stress. Following transplantation, we could demonstrate enhanced islet function in comparison to standard models with improved engraftment and superior re-vascularization. This experimental approach allows for novel insights into the interaction of endocrine systems and may open up novel strategies for islet transplantation augmented through the bystander effect of other endocrine cells or the active factors secreted by adrenal cells modulating the microenvironment.
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Affiliation(s)
- Undine Schubert
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Faculty of Medicine of the Technische Universität Dresden, Dresden, Germany
| | - Susann Lehmann
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Faculty of Medicine of the Technische Universität Dresden, Dresden, Germany
| | - Janine Schmid
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Faculty of Medicine of the Technische Universität Dresden, Dresden, Germany
| | - Henning Morawietz
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stefan R Bornstein
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Faculty of Medicine of the Technische Universität Dresden, Dresden, Germany
- School of Cardiovascular and Metabolic Medicine and Sciences, King's College London, Faculty of Life Sciences & Medicine, London, United Kingdom of Great Britain and Northern Ireland
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
- Center for Regenerative Therapies, Technische Universität Dresden, Dresden, Germany
- German Center for Diabetes Research (DZD e.V.), Neuherberg, Germany
| | - Barbara Ludwig
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Faculty of Medicine of the Technische Universität Dresden, Dresden, Germany
- Center for Regenerative Therapies, Technische Universität Dresden, Dresden, Germany
- German Center for Diabetes Research (DZD e.V.), Neuherberg, Germany
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2
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Hong T, Caxaria S, Daniels Gatward LF, Hussain S, Zhao M, King AJF, Rackham CL, Jones PM. Mesenchymal stromal cell secretory molecules improve the functional survival of human islets. Diabet Med 2023; 40:e15227. [PMID: 37728506 PMCID: PMC10915897 DOI: 10.1111/dme.15227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/21/2023]
Abstract
AIMS Human islet transplantation as a therapy for type 1 diabetes is compromised by the loss of functional beta cells in the immediate post-transplantation period. Mesenchymal stromal cells (MSCs) and MSC-derived secretory peptides improve the outcomes of islet transplantation in rodent models of diabetes. Here, we utilized a mouse model for human islet transplantation and assessed the effects of a cocktail of MSC-secreted peptides (screened by MSC-secretome for human islet GPCRs) on the functional survival of human islets. METHODS Human islets from nine donors (Age: 36-57; BMI: 20-35) were treated with a cocktail of human recombinant annexin A1 (ANXA1), stromal cell-derived factor-1 (SDF-1/CXCL12) and complement component C3 (C3a). Glucose-stimulated insulin secretion (GSIS) was assessed in static incubation, and cytokine-induced apoptosis was assessed by measuring caspase 3/7 activity. mRNA expression levels were determined by qPCR. Human islet function in vivo was assessed using a novel model for human islet transplantation into a T1D mouse model. Human islet function in vivo was assessed using islet transplantation under the kidney capsule of immunodeficient mice prior to STZ destruction of endogenous mouse beta cells to model T1DM. RESULTS Pretreatment with a cocktail of MSC-secreted peptides increased GSIS in vitro and protected against cytokine-induced apoptosis in human islets isolated from nine donors. Animals transplanted with either treated or untreated human islets remained normoglycaemic for up to 28 days after STZ-administration to ablate the endogenous mouse beta cells, whereas non-transplanted animals showed significantly increased blood glucose immediately after STZ administration. Removal of the human islet graft by nephrectomy resulted in rapid increases in blood glucose to similar levels as the non-transplanted controls. Pretreating human islets with the MSC-derived cocktail significantly improved glucose tolerance in graft recipients, consistent with enhanced functional survival of the treated islets in vivo. CONCLUSION Pretreating human islets before transplantation with a defined cocktail of MSC-derived molecules could be employed to improve the quality of human islets for transplantation therapy for type 1 diabetes.
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Affiliation(s)
- Tzu‐Wen Hong
- Department of Diabetes, School of Cardiovascular and Metabolic Medicine and SciencesKing's College LondonLondonUK
| | - Sara Caxaria
- William Harvey Research Institute, Barts and the London School of MedicineQueen Mary University of LondonLondonUK
| | - Lydia F. Daniels Gatward
- Department of Diabetes, School of Cardiovascular and Metabolic Medicine and SciencesKing's College LondonLondonUK
| | - Sufyan Hussain
- Department of Diabetes, School of Cardiovascular and Metabolic Medicine and SciencesKing's College LondonLondonUK
- Department of Diabetes and Endocrinology, Guy's and St Thomas' NHS Foundation TrustLondonUK
| | - Min Zhao
- Department of Diabetes, School of Cardiovascular and Metabolic Medicine and SciencesKing's College LondonLondonUK
| | - Aileen J. F. King
- Department of Diabetes, School of Cardiovascular and Metabolic Medicine and SciencesKing's College LondonLondonUK
| | - Chloe L. Rackham
- Exeter Centre for Excellence in Diabetes, Institute of Biomedical and Clinical ScienceUniversity of ExeterExeterUK
| | - Peter M. Jones
- Department of Diabetes, School of Cardiovascular and Metabolic Medicine and SciencesKing's College LondonLondonUK
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3
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Liao M, Hu Y, Zhang Y, Wang K, Fang Q, Qi Y, Shen Y, Cheng H, Fu X, Tang M, Sun S, Gao X, Chai R. 3D Ti 3C 2T x MXene-Matrigel with Electroacoustic Stimulation to Promote the Growth of Spiral Ganglion Neurons. ACS NANO 2022; 16:16744-16756. [PMID: 36222600 PMCID: PMC9620407 DOI: 10.1021/acsnano.2c06306] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Cochlear implantation has become the most effective treatment method for patients with profound and total hearing loss. However, its therapeutic efficacy is dependent on the number and normal physiological function of cochlear implant-targeted spiral ganglion neurons (SGNs). Electrical stimulation can be used as an effective cue to regulate the morphology and function of excitatory cells. Therefore, it is important to develop an efficient cochlear implant electroacoustic stimulation (EAS) system to study the behavior of SGNs. In this work, we present an electrical stimulation system constructed by combining a cochlear implant and a conductive Ti3C2Tx MXene-matrigel hydrogel. SGNs were cultured in the Ti3C2Tx MXene-matrigel hydrogel and exposed to electrical stimulation transduced by the cochlear implant. It was demonstrated that low-frequency stimulation promoted the growth cone development and neurite outgrowth of SGNs as well as signal transmission between cells. This work may have potential value for the clinical application of the Ti3C2Tx MXene hydrogel to optimize the postoperative listening effect of cochlear implantation and benefit people with sensorineural hearing loss.
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Affiliation(s)
- Menghui Liao
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
- Department
of Otorhinolaryngology−Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China
| | - Yangnan Hu
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
- Department
of Otorhinolaryngology−Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China
| | - Yuhua Zhang
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
| | - Kaichen Wang
- Chien-Shiung
Wu College, Southeast University, Nanjing, Jiangsu 210096, China
| | - Qiaojun Fang
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
| | - Yanru Qi
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
| | - Yingbo Shen
- Chien-Shiung
Wu College, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hong Cheng
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
| | - Xiaolong Fu
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
| | - Mingliang Tang
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated
Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215000, China
- Co-Innovation
Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Shan Sun
- ENT
Institute and Department
of Otorhinolaryngology, Eye and ENT Hospital, State Key Laboratory
of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200031, China
| | - Xia Gao
- Department
of Otorhinolaryngology−Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China
| | - Renjie Chai
- State
Key Laboratory of Bioelectronics, Department of Otolaryngology Head
and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology,
Advanced Institute for Life and Health, Jiangsu Province High-Tech
Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu 210096, China
- Co-Innovation
Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
- Department
of Otolaryngology−Head and Neck Surgery, Sichuan Provincial
People’s Hospital, University of
Electronic Science and Technology of China, Chengdu, Sichuan 610072, China
- Institute
for Stem Cell and Regeneration, Chinese
Academy of Science, Beijing 100101, China
- Beijing
Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing 100069, China
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4
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Razavi M, Primavera R, Kevadiya BD, Wang J, Ullah M, Buchwald P, Thakor AS. Controlled Nutrient Delivery to Pancreatic Islets Using Polydopamine-Coated Mesoporous Silica Nanoparticles. NANO LETTERS 2020; 20:7220-7229. [PMID: 32909757 PMCID: PMC8121116 DOI: 10.1021/acs.nanolett.0c02576] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
In the present study, we created a nanoscale platform that can deliver nutrients to pancreatic islets in a controlled manner. Our platform consists of a mesoporous silica nanoparticle (MSNP), which can be loaded with glutamine (G: an essential amino acid required for islet survival and function). To control the release of G, MSNPs were coated with a polydopamine (PD) layer. With the optimal parameters (0.5 mg/mL and 0.5 h), MSNPs were coated with a layer of PD, which resulted in a delay of G release from MSNPs over 14 d (57.4 ± 4.7% release). Following syngeneic renal subcapsule islet transplantation in diabetic mice, PDG-MSNPs improved the engraftment of islets (i.e., enhanced revascularization and reduced inflammation) as well as their function, resulting in re-establishment of glycemic control. Collectively, our data show that PDG-MSNPs can support transplanted islets by providing them with a controlled and sustained supply of nutrients.
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Affiliation(s)
- Mehdi Razavi
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Palo Alto, California 94304, United States; Biionix (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine and Department of Materials Science & Engineering, University of Central Florida, Orlando, Florida 32827, United States
| | - Rosita Primavera
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Palo Alto, California 94304, United States
| | - Bhavesh D Kevadiya
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Palo Alto, California 94304, United States
| | - Jing Wang
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Palo Alto, California 94304, United States
| | - Mujib Ullah
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Palo Alto, California 94304, United States
| | - Peter Buchwald
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida 33136, United States
| | - Avnesh S Thakor
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Palo Alto, California 94304, United States
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5
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Razavi M, Ren T, Zheng F, Telichko A, Wang J, Dahl JJ, Demirci U, Thakor AS. Facilitating islet transplantation using a three-step approach with mesenchymal stem cells, encapsulation, and pulsed focused ultrasound. Stem Cell Res Ther 2020; 11:405. [PMID: 32948247 PMCID: PMC7501701 DOI: 10.1186/s13287-020-01897-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/06/2020] [Accepted: 08/24/2020] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND The aim of this study was to examine the effect of a three-step approach that utilizes the application of adipose tissue-derived mesenchymal stem cells (AD-MSCs), encapsulation, and pulsed focused ultrasound (pFUS) to help the engraftment and function of transplanted islets. METHODS In step 1, islets were co-cultured with AD-MSCs to form a coating of AD-MSCs on islets: here, AD-MSCs had a cytoprotective effect on islets; in step 2, islets coated with AD-MSCs were conformally encapsulated in a thin layer of alginate using a co-axial air-flow method: here, the capsule enabled AD-MSCs to be in close proximity to islets; in step 3, encapsulated islets coated with AD-MSCs were treated with pFUS: here, pFUS enhanced the secretion of insulin from islets as well as stimulated the cytoprotective effect of AD-MSCs. RESULTS Our approach was shown to prevent islet death and preserve islet functionality in vitro. When 175 syngeneic encapsulated islets coated with AD-MSCs were transplanted beneath the kidney capsule of diabetic mice, and then followed every 3 days with pFUS treatment until day 12 post-transplantation, we saw a significant improvement in islet function with diabetic animals re-establishing glycemic control over the course of our study (i.e., 30 days). In addition, our approach was able to enhance islet engraftment by facilitating their revascularization and reducing inflammation. CONCLUSIONS This study demonstrates that our clinically translatable three-step approach is able to improve the function and viability of transplanted islets.
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Affiliation(s)
- Mehdi Razavi
- Department of Radiology, Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, 3155 Porter Drive, Palo Alto, CA, 94304, USA
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, 32816, USA
| | - Tanchen Ren
- Department of Radiology, Bio-Acoustic MEMS in Medicine Laboratory (BAMM), Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Fengyang Zheng
- Department of Radiology, Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, 3155 Porter Drive, Palo Alto, CA, 94304, USA
| | - Arsenii Telichko
- Department of Radiology, Dahl Ultrasound Laboratory, Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Jing Wang
- Department of Radiology, Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, 3155 Porter Drive, Palo Alto, CA, 94304, USA
| | - Jeremy J Dahl
- Department of Radiology, Dahl Ultrasound Laboratory, Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Utkan Demirci
- Department of Radiology, Bio-Acoustic MEMS in Medicine Laboratory (BAMM), Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Avnesh S Thakor
- Department of Radiology, Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, 3155 Porter Drive, Palo Alto, CA, 94304, USA.
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Jacob A, Southard S, Rust W. Cell Replacement Therapy for Insulin-Dependent Diabetes: Maintaining Islet Architecture and Distribution After Graft. CURRENT TRANSPLANTATION REPORTS 2020. [DOI: 10.1007/s40472-020-00281-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Schaschkow A, Sigrist S, Mura C, Barthes J, Vrana NE, Czuba E, Lemaire F, Neidl R, Dissaux C, Lejay A, Lavalle P, Bruant-Rodier C, Bouzakri K, Pinget M, Maillard E. Glycaemic control in diabetic rats treated with islet transplantation using plasma combined with hydroxypropylmethyl cellulose hydrogel. Acta Biomater 2020; 102:259-272. [PMID: 31811957 DOI: 10.1016/j.actbio.2019.11.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 11/15/2019] [Accepted: 11/22/2019] [Indexed: 12/18/2022]
Abstract
Islet transplantation is one of the most efficient cell therapies used in clinics and could treat a large proportion of patients with diabetes. However, it is limited by the high requirement of pancreas necessary to provide the sufficient surviving islet mass in the hepatic tissue and restore normoglycaemia. Reduction in organ procurement requirements could be achieved by extrahepatic transplantation using a biomaterial that enhances islet survival and function. We report a plasma-supplemented hydroxypropyl methylcellulose (HPMC) hydrogel, engineered specifically using a newly developed technique for intra-omental islet infusion, known as hOMING (h-Omental Matrix Islet filliNG). The HPMC hydrogel delivered islets with better performance than that of the classical intrahepatic infusion. After the validation of the HPMC suitability for islets in vivo and in vitro, plasma supplementation modified the rheological properties of HPMC without affecting its applicability with hOMING. The biomaterial association was proven to be more efficient both in vitro and in vivo, with better islet viability and function than that of the current clinical intrahepatic delivery technique. Indeed, when the islet mass was decreased by 25% or 35%, glycaemia control was observed in the group of plasma-supplemented hydrogels, whereas no regulation was observed in the hepatic group. Plasma gelation, observed immediately post infusion, decreased anoïkis and promoted vascularisation. To conclude, the threshold mass for islet transplantation could be decreased using HPMC-Plasma combined with the hOMING technique. The simplicity of the hOMING technique and the already validated use of its components could facilitate its transfer to clinics. STATEMENT OF SIGNIFICANCE: One of the major limitations for the broad deployment of current cell therapy for brittle type 1 diabetes is the islets' destruction during the transplantation process. Retrieved from their natural environment, the islets are grafted into a foreign tissue, which triggers massive cell loss. It is mandatory to provide the islets with an 3D environment specifically designed for promoting isletimplantation to improve cell therapy outcomes. For this aim, we combined HPMC and plasma. HPMC provides suitable rheological properties to the plasma to be injectable and be maintained in the omentum. Afterwards, the plasma polymerises around the graft in vivo, thereby allowing their optimal integration into their transplantation site. As a result, the islet mass required to obtain glycaemic control was reduced by 35%.
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8
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Duin S, Schütz K, Ahlfeld T, Lehmann S, Lode A, Ludwig B, Gelinsky M. 3D Bioprinting of Functional Islets of Langerhans in an Alginate/Methylcellulose Hydrogel Blend. Adv Healthc Mater 2019; 8:e1801631. [PMID: 30835971 DOI: 10.1002/adhm.201801631] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/24/2019] [Indexed: 12/16/2022]
Abstract
Transplantation of pancreatic islets is a promising strategy to alleviate the unstable blood-glucose control that some patients with diabetes type 1 exhibit and has seen many advances over the years. Protection of transplanted islets from the immune system can be accomplished by encapsulation within a hydrogel, the most investigated of which is alginate. In this study, islet encapsulation is combined with 3D extrusion bioprinting, an additive manufacturing method which enables the fabrication of 3D structures with a precise geometry to produce macroporous hydrogel constructs with embedded islets. Using a plottable hydrogel blend consisting of clinically approved ultrapure alginate and methylcellulose (Alg/MC) enables encapsulating pancreatic islets in macroporous 3D hydrogel constructs of defined geometry while retaining their viability, morphology, and functionality. Diffusion of glucose and insulin in the Alg/MC hydrogel is comparable to diffusion in plain alginate; the embedded islets continuously produce insulin and glucagon throughout the observation and still react to glucose stimulation albeit to a lesser degree than control islets.
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Affiliation(s)
- Sarah Duin
- Centre for Translational BoneJoint and Soft Tissue ResearchUniversity Hospital Carl Gustav Carus and Faculty of Medicine of Technische Universität Dresden Fetscherstr. 74 01307 Dresden Germany
| | - Kathleen Schütz
- Centre for Translational BoneJoint and Soft Tissue ResearchUniversity Hospital Carl Gustav Carus and Faculty of Medicine of Technische Universität Dresden Fetscherstr. 74 01307 Dresden Germany
| | - Tilman Ahlfeld
- Centre for Translational BoneJoint and Soft Tissue ResearchUniversity Hospital Carl Gustav Carus and Faculty of Medicine of Technische Universität Dresden Fetscherstr. 74 01307 Dresden Germany
| | - Susann Lehmann
- Paul Langerhans Institute Dresden of Helmholtz Centre Munich at University Hospital Carl Gustav Carus of Technische Universität Dresden and German Centre for Diabetes Research Dresden, Tatzberg 47‐49 01307 Dresden Germany
| | - Anja Lode
- Centre for Translational BoneJoint and Soft Tissue ResearchUniversity Hospital Carl Gustav Carus and Faculty of Medicine of Technische Universität Dresden Fetscherstr. 74 01307 Dresden Germany
| | - Barbara Ludwig
- Paul Langerhans Institute Dresden of Helmholtz Centre Munich at University Hospital Carl Gustav Carus of Technische Universität Dresden and German Centre for Diabetes Research Dresden, Tatzberg 47‐49 01307 Dresden Germany
- Department of Medicine IIIUniversity Hospital Carl Gustav CarusTechnische Universität Dresden Fetscherstraße 74 01307 Dresden Germany
| | - Michael Gelinsky
- Centre for Translational BoneJoint and Soft Tissue ResearchUniversity Hospital Carl Gustav Carus and Faculty of Medicine of Technische Universität Dresden Fetscherstr. 74 01307 Dresden Germany
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9
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Ren G, Rezaee M, Razavi M, Taysir A, Wang J, Thakor AS. Adipose tissue-derived mesenchymal stem cells rescue the function of islets transplanted in sub-therapeutic numbers via their angiogenic properties. Cell Tissue Res 2019; 376:353-364. [PMID: 30707291 DOI: 10.1007/s00441-019-02997-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 01/17/2019] [Indexed: 02/07/2023]
Abstract
A significant proportion of islets are lost following transplantation due to hypoxia and inflammation. We hypothesize that adipose tissue-derived mesenchymal stem cells (AD-MSCs) can rescue a sub-therapeutic number of transplanted islets by helping them establish a new blood supply and reducing inflammation. Diabetic mice received syngeneic transplantation with 75 (minimal), 150 (sub-therapeutic), or 225 (therapeutic) islets, with or without 1 × 106 mouse AD-MSCs. Fasting blood glucose (FBG) values were measured over 6 weeks with tissue samples collected for islet structure and morphology (H&E, insulin/glucagon staining). Histological and immunohistochemical analyses of islets were also performed at 2 weeks in animals transplanted with a sub-therapeutic number of islets, with and without AD-MSCs, to determine new blood vessel formation, the presence of pro-angiogenic factors facilitating revascularization, and the degree of inflammation. AD-MSCs had no beneficial effect on FBG values when co-transplanted with a minimal or therapeutic number of islets. However, AD-MSCs significantly reduced FBG values and restored glycemic control in diabetic animals transplanted with a sub-therapeutic number of islets. Islets co-transplanted with AD-MSCs preserved their native morphology and organization and exhibited less aggregation when compared to islets transplanted alone. In the sub-therapeutic group, AD-MSCs significantly increased islet revascularization and the expression of angiogenic factors including hepatocyte growth factor (HGF) and angiopoietin-1 (Ang-1) while also reducing inflammation. AD-MSCs can rescue the function of islets when transplanted in a sub-therapeutic number, for at least 6 weeks, via their ability to maintain islet architecture while concurrently facilitating islet revascularization and reducing inflammation.
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Affiliation(s)
- Gang Ren
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University, Department of Radiology, Palo Alto, CA, 94034, USA
| | - Melika Rezaee
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University, Department of Radiology, Palo Alto, CA, 94034, USA.,Chicago Medical School, Rosalind Franklin University, North Chicago, IL, 60064, USA
| | - Mehdi Razavi
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University, Department of Radiology, Palo Alto, CA, 94034, USA
| | - Ahmed Taysir
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University, Department of Radiology, Palo Alto, CA, 94034, USA
| | - Jing Wang
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University, Department of Radiology, Palo Alto, CA, 94034, USA
| | - Avnesh S Thakor
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University, Department of Radiology, Palo Alto, CA, 94034, USA.
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Perez-Basterrechea M, Esteban MM, Vega JA, Obaya AJ. Tissue-engineering approaches in pancreatic islet transplantation. Biotechnol Bioeng 2018; 115:3009-3029. [PMID: 30144310 DOI: 10.1002/bit.26821] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/08/2018] [Accepted: 08/14/2018] [Indexed: 12/15/2022]
Abstract
Pancreatic islet transplantation is a promising alternative to whole-pancreas transplantation as a treatment of type 1 diabetes mellitus. This technique has been extensively developed during the past few years, with the main purpose of minimizing the complications arising from the standard protocols used in organ transplantation. By using a variety of strategies used in tissue engineering and regenerative medicine, pancreatic islets have been successfully introduced in host patients with different outcomes in terms of islet survival and functionality, as well as the desired normoglycemic control. Here, we describe and discuss those strategies to transplant islets together with different scaffolds, in combination with various cell types and diffusible factors, and always with the aim of reducing host immune response and achieving islet survival, regardless of the site of transplantation.
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Affiliation(s)
- Marcos Perez-Basterrechea
- Unidad de Terapia Celular y Medicina Regenerativa, Servicio de Hematología y Hemoterapia, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain.,Plataforma de Terapias Avanzadas, Instituto de Investigación Biosanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Manuel M Esteban
- Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Spain
| | - Jose A Vega
- Departamento de Morfología y Biología Celular, Universidad de Oviedo, Oviedo, Spain.,Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile
| | - Alvaro J Obaya
- Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Spain
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11
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Rackham CL, Jones PM. Potential of mesenchymal stromal cells for improving islet transplantation outcomes. Curr Opin Pharmacol 2018; 43:34-39. [PMID: 30103073 DOI: 10.1016/j.coph.2018.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 07/25/2018] [Accepted: 07/27/2018] [Indexed: 12/16/2022]
Abstract
Allogeneic islet transplantation as a therapy for Type 1 Diabetes (T1D) is restricted by the limited availability of donor islets, loss of functional islets during pre-transplantation culture in vitro and further extensive loss during the immediate post-transplantation period when islet function and survival is compromised by the hypoxic, inflammatory host environment. In the longer term pathogenic T cell responses drive autoimmunity and chronic allograft rejection. Experimental studies have demonstrated that mesenchymal stromal cells (MSCs) have significant potential to improve the outcomes of clinical islet transplantation. This review explores the potential for MSCs and their 'secretome' to influence donor islet cell function and survival, as well as the host niche. We discuss the possibility of harnessing the therapeutic benefits of MSCs in a cell-free strategy to offer a well-defined, cell-free approach to improve the outcomes of clinical islet transplantation.
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Affiliation(s)
- Chloe L Rackham
- Department of Diabetes, School of Life Course Sciences, King's College London, Guy's Campus, London SE1 1UL, UK.
| | - Peter M Jones
- Department of Diabetes, School of Life Course Sciences, King's College London, Guy's Campus, London SE1 1UL, UK
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12
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Skrzypek K, Nibbelink MG, Karbaat LP, Karperien M, van Apeldoorn A, Stamatialis D. An important step towards a prevascularized islet macroencapsulation device-effect of micropatterned membranes on development of endothelial cell network. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:91. [PMID: 29938334 PMCID: PMC6018599 DOI: 10.1007/s10856-018-6102-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 06/05/2018] [Indexed: 05/23/2023]
Abstract
The development of immune protective islet encapsulation devices could allow for islet transplantation in the absence of immunosuppression. However, the immune protective membrane / barrier introduced there could also impose limitations in transport of oxygen and nutrients to the encapsulated cells resulting to limited islet viability. In the last years, it is well understood that achieving prevascularization of the device in vitro could facilitate its connection to the host vasculature after implantation, and therefore could provide sufficient blood supply and oxygenation to the encapsulated islets. However, the microvascular networks created in vitro need to mimic well the highly organized vasculature of the native tissue. In earlier study, we developed a functional macroencapsulation device consisting of two polyethersulfone/polyvinylpyrrolidone (PES/PVP) membranes, where a bottom microwell membrane provides good separation of encapsulated islets and the top flat membrane acts as a lid. In this work, we investigate the possibility of creating early microvascular networks on the lid of this device by combining novel membrane microfabrication with co-culture of human umbilical vein endothelial cell (HUVEC) and fibroblasts. We create thin porous microstructured PES/PVP membranes with solid and intermittent line-patterns and investigate the effect of cell alignment and cell interconnectivity as a first step towards the development of a stable prevascularized layer in vitro. Our results show that, in contrast to non-patterned membranes where HUVECs form unorganized HUVEC branch-like structures, for the micropatterned membranes, we can achieve cell alignment and the co-culture of HUVECs on a monolayer of fibroblasts attached on the membranes with intermittent line-pattern allows for the creation of HUVEC branch-like structures over the membrane surface. This important step towards creating early microvascular networks was achieved without the addition of hydrogels, often used in angiogenesis assays, as gels could block the pores of the membrane and limit the transport properties of the islet encapsulation device.
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Affiliation(s)
- Katarzyna Skrzypek
- Bioartificial organs, Biomaterials Science and Technology, MIRA Institute of Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands.
| | - Milou Groot Nibbelink
- Developmental BioEngineering, MIRA Institute of Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Lisanne P Karbaat
- Developmental BioEngineering, MIRA Institute of Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Marcel Karperien
- Developmental BioEngineering, MIRA Institute of Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Aart van Apeldoorn
- Developmental BioEngineering, MIRA Institute of Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
- Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Dimitrios Stamatialis
- Bioartificial organs, Biomaterials Science and Technology, MIRA Institute of Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
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Early islets and mesenchyme from an injured adult pancreas improve syngeneic engraftments and islet graft function in diabetic rats. Acta Histochem 2018; 120:356-362. [PMID: 29622345 DOI: 10.1016/j.acthis.2018.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/10/2018] [Accepted: 03/26/2018] [Indexed: 12/12/2022]
Abstract
A decrease in mass of isografts and a decline in islet function are major challenges in islet transplantations. Despite this, transplantation of 84 h harvested pancreatic duct ligation (PDL) tissues have been shown to have the same functional ability to foetal pancreata, but there was only 40% success in reverting hyperglycaemia. We tested the potential of early islets with mesenchymal stromal cells (MSCs) to promote isogeneic grafts survival and to restore normoglycemia in diabetic rats, in comparison with late islets. Islets were isolated from injured adult pancreata of donor rats at 24 h post ligation either with MSCs (24 h islet/MSC+) or without MSCs (24 h islet/MSC-), and at 84 h without MSCs (84 h islet/MSC-). These cells were transplanted under the renal capsule of syngeneic STZ-diabetic recipient rats. The islet grafts were monitored using the BGLs of recipients and the immunohistomorphology of the grafts were analysed using anti-insulin and anti-Ki67 antibodies. The mean BGL in 24 h islet/MSC+ recipients was reduced over time toward the control value. The curves of the mean BGLs in the control islet/MSC- and the 24 h islet/MSC- recipients dropped significantly below the control normal glucose group's levels to reach their nadirs on weeks 4 and 6, respectively. Both curves had a peak overshoot on week 9, with no statistical significant difference between them. Engrafted islets were evident in these recipients, lasted for 5 and 6 weeks and correspondingly survived failure. However, insulin+ cells were present in the isografts of all recipients; but, only isografts in the 24 h islet/MSC+ presented with a homogenous subcapsular beta cell mass. In addition, the tendency of 24 h islet/MSC- to restore normoglycaemia with its survival capacity was statistically highly significant compared to the 84 islet/MSC- recipients (80%; 20%; p = 0.001). Transplantation of early islets with MSCs from injured adult pancreata prolongs islet graft survival and improves isograft function in diabetic rats. This novel observation requires much further exploration for its clinical application, but this model already provides hope for new sources of donor islets for transplantation.
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Mao D, Zhu M, Zhang X, Ma R, Yang X, Ke T, Wang L, Li Z, Kong D, Li C. A macroporous heparin-releasing silk fibroin scaffold improves islet transplantation outcome by promoting islet revascularisation and survival. Acta Biomater 2017; 59:210-220. [PMID: 28666883 DOI: 10.1016/j.actbio.2017.06.039] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/21/2017] [Accepted: 06/26/2017] [Indexed: 12/16/2022]
Abstract
Islet transplantation is considered the most promising therapeutic option with the potential to cure diabetes. However, efficacy of current clinical islet transplantation is limited by long-term graft dysfunction and attrition. We have investigated the therapeutic potential of a silk fibroin macroporous (SF) scaffold for syngeneic islet transplantation in diabetic mice. The SF scaffold was prepared via lyophilisation, which enables incorporation of active compounds including cytokines, peptide and growth factors without compromising their biological activity. For the present study, a heparin-releasing SF scaffold (H-SF) in order to evaluate the versatility of the SF scaffold for biological functionalisation. Islets were then co-transplanted with H-SF or SF scaffolds in the epididymal fat pad of diabetic mice. Mice from both H-SF and SF groups achieved 100% euglycaemia, which was maintained for 1year. More importantly, the H-SF-islets co-transplantation led to more rapid reversal of hyperglycaemia, complete normalisation of glucose responsiveness and lower long-term blood glucose levels. This superior transplantation outcome is attributable to H-SF-facilitated islet revascularisation and cell proliferation since significant increase of islet endocrine and endothelial cells proliferation was shown in grafts retrieved from H-SF-islets co-transplanted mice. Better intra-islet vascular reformation was also evident, accompanied by VEGF upregulation. In addition, when H-SF was co-transplanted with islets extracted from vegfr2-luc transgenic mice in vivo, sustained elevation of bioluminescent signal that corresponds to vegfr2 expression was collected, implicating a role of heparin-dependent activation of endogenous VEGF/VEGFR2 pathway in promoting islet revascularisation and proliferation. In summary, the SF scaffolds provide an open platform as scaffold development for islet transplantation. Furthermore, given the pro-angiogenic, pro-survival and minimal post-transplantation inflammatory reactions of H-SF, our data also support the feasibility of clinical implementation of H-SF to improve islet transplantation outcome. STATEMENT OF SIGNIFICANCE 1) The silk fibroin scaffold presented in the present study provides an open platform for scaffold development in islet transplantation, with heparinisation as an example. 2) Both heparin and silk fibroin have been used clinically. The excellent in vivo therapeutic outcome reported here may therefore be clinically relevant and provide valuable insights for bench to bed translation. 3) Compared to conventional clinical islet transplantation, during which islets are injected via the hepatic portal vein, the physical/mechanical properties of silk fibroin scaffolds create a more accessible transplantation site (i.e., within fat pad), which significantly reduces discomfort. 4) Islet implantation into the fat pad also avoids an instant blood mediated inflammatory response, which occurs upon contact of islet with recipient's blood during intraportal injection, and prolongs survival and function of implanted islets.
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Affiliation(s)
- Duo Mao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Meifeng Zhu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Xiuyuan Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin 300192, China
| | - Rong Ma
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University, Kunming 650101, Yunnan, China
| | - Xiaoqing Yang
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University, Kunming 650101, Yunnan, China
| | - Tingyu Ke
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University, Kunming 650101, Yunnan, China
| | - Lianyong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Zongjin Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China; School of Medicine, Nankai University, Tianjin 300071, China.
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China; Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin 300192, China
| | - Chen Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin 300192, China.
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King AJF, Griffiths LA, Persaud SJ, Jones PM, Howell SL, Welsh N. Imatinib prevents beta cell death in vitro but does not improve islet transplantation outcome. Ups J Med Sci 2016; 121:140-5. [PMID: 26953716 PMCID: PMC4900069 DOI: 10.3109/03009734.2016.1151090] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Introduction Improving islet transplantation outcome could not only bring benefits to individual patients but also widen the patient pool to which this life-changing treatment is available. Imatinib has previously been shown to protect beta cells from apoptosis in a variety of in vitro and in vivo models. The aim of this study was to investigate whether imatinib could be used to improve islet transplantation outcome. Methods Islets were isolated from C57Bl/6 mice and pre-cultured with imatinib prior to exposure to streptozotocin and cytokines in vitro. Cell viability and glucose-induced insulin secretion were measured. For transplantation experiments, islets were pre-cultured with imatinib for either 72 h or 24 h prior to transplantation into streptozotocin-diabetic C57Bl/6 mice. In one experimental series mice were also administered imatinib after islet transplantation. Results Imatinib partially protected islets from beta cell death in vitro. However, pre-culturing islets in imatinib or administering the drug to the mice in the days following islet transplantation did not improve blood glucose concentrations more than control-cultured islets. Conclusion Although imatinib protected against beta cell death from cytokines and streptozotocin in vitro, it did not significantly improve syngeneic islet transplantation outcome.
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Affiliation(s)
- Aileen J. F. King
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, King’s College London, London, United Kingdom
- CONTACT Aileen King Diabetes Research Group, Division of Diabetes and Nutritional Sciences, King’s College London, Guy’s Campus, London SE1 1UL, United Kingdom
| | - Lisa A. Griffiths
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, King’s College London, London, United Kingdom
| | - Shanta J. Persaud
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, King’s College London, London, United Kingdom
| | - Peter M. Jones
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, King’s College London, London, United Kingdom
| | - Simon L. Howell
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, King’s College London, London, United Kingdom
| | - Nils Welsh
- Department of Medical Cell Biology, Uppsala University, Biomedicum, Uppsala, Sweden
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16
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Lavallard V, Armanet M, Parnaud G, Meyer J, Barbieux C, Montanari E, Meier R, Morel P, Berney T, Bosco D. Cell rearrangement in transplanted human islets. FASEB J 2016; 30:748-760. [PMID: 26534832 DOI: 10.1096/fj.15-273805] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 10/13/2015] [Indexed: 11/03/2023]
Abstract
The major feature of the human pancreatic islet architecture is the organization of endocrine cells into clusters comprising central β cells and peripheral α cells surrounded by vasculature. To have an insight into the mechanisms that govern this unique islet architecture, islet cells were isolated, and reaggregation of α and β cells into islet-like structures (pseudoislets) after culture or transplantation into mice was studied by immunohistology. The pseudoislets formed in culture displayed an unusual cell arrangement, contrasting with the transplanted pseudoislets, which exhibited a cell arrangement similar to that observed in native pancreatic islet subunits. The pattern of revascularization and the distribution of extracellular matrix around transplanted pseudoislets were alike to those observed in native pancreatic islets. This organization of transplanted pseudoislets occurred also when revascularization was abolished by treating mice with an anti-VEGF antibody, but not when contact with extracellular matrix was prevented by encapsulation of pseudoislets within alginate hydrogel. These results indicate that the maintenance of islet cell arrangement is dependent on in vivo features such as extracellular matrix but independent of vascularization.
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Affiliation(s)
- Vanessa Lavallard
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Mathieu Armanet
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Géraldine Parnaud
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Jérémy Meyer
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Charlotte Barbieux
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Elisa Montanari
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Raphaël Meier
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Philippe Morel
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Thierry Berney
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
| | - Domenico Bosco
- *Cell Isolation and Transplantation Center, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Cell Therapy Unit, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, and University Paris 7, Paris, France; and Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche Scientifique 1138, Centre de Recherches des Cordeliers, Paris, France
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King A, Bowe J. Animal models for diabetes: Understanding the pathogenesis and finding new treatments. Biochem Pharmacol 2015; 99:1-10. [PMID: 26432954 DOI: 10.1016/j.bcp.2015.08.108] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/26/2015] [Indexed: 02/06/2023]
Abstract
Diabetes mellitus is a lifelong, metabolic disease that is characterised by an inability to maintain normal glucose homeostasis. There are several different forms of diabetes, however the two most common are Type 1 and Type 2 diabetes. Type 1 diabetes is caused by the autoimmune destruction of pancreatic beta cells and a subsequent lack of insulin production, whilst Type 2 diabetes is due to a combination of both insulin resistance and an inability of the beta cells to compensate adequately with increased insulin release. Animal models are increasingly being used to elucidate the mechanisms underlying both Type 1 and Type 2 diabetes as well as to identify and refine novel treatments. However, a wide range of different animal models are currently in use. The majority of these models are suited to addressing certain specific aspects of diabetes research, but may be of little use in other studies. All have pros and cons, and selecting an appropriate model for addressing a specific question is not always a trivial task and will influence the study results and their interpretation. Thus, as the number of available animal models increases it is important to consider the potential roles of these models in the many different aspects of diabetes research. This review gathers information on the currently used experimental animal models of both Type 1 and Type 2 diabetes and evaluates their advantages and disadvantages for research purposes and details the factors that should be taken into account in their use.
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Affiliation(s)
- Aileen King
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, Hodgkin Building 2nd Floor, Guy's Campus, King's College London, London SE1 1UL, United Kingdom.
| | - James Bowe
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, Hodgkin Building 2nd Floor, Guy's Campus, King's College London, London SE1 1UL, United Kingdom
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18
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Tsuchiya H, Sakata N, Yoshimatsu G, Fukase M, Aoki T, Ishida M, Katayose Y, Egawa S, Unno M. Extracellular Matrix and Growth Factors Improve the Efficacy of Intramuscular Islet Transplantation. PLoS One 2015; 10:e0140910. [PMID: 26473955 PMCID: PMC4608691 DOI: 10.1371/journal.pone.0140910] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 10/01/2015] [Indexed: 12/24/2022] Open
Abstract
Background The efficacy of intramuscular islet transplantation is poor despite being technically simple, safe, and associated with reduced rates of severe complications. We evaluated the efficacy of combined treatment with extracellular matrix (ECM) and growth factors in intramuscular islet transplantation. Methods Male BALB/C mice were used for the in vitro and transplantation studies. The following three groups were evaluated: islets without treatment (islets-only group), islets embedded in ECM with growth factors (Matrigel group), and islets embedded in ECM without growth factors [growth factor-reduced (GFR) Matrigel group]. The viability and insulin-releasing function of islets cultured for 96 h were significantly improved in Matrigel and GFR Matrigel groups compared with the islets-only group. Results Blood glucose and serum insulin levels immediately following transplantation were significantly improved in the Matrigel and GFR Matrigel groups and remained significantly improved in the Matrigel group at postoperative day (POD) 28. On histological examination, significantly decreased numbers of TdT-mediated deoxyuridine triphosphate-biotin nick end labeling-positive islet cells and significantly increased numbers of Ki67-positive cells were observed in the Matrigel and GFR Matrigel groups at POD 3. Peri-islet revascularization was most prominent in the Matrigel group at POD 14. Conclusions The efficacy of intramuscular islet transplantation was improved by combination treatment with ECM and growth factors through the inhibition of apoptosis, increased proliferation of islet cells, and promotion of revascularization.
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Affiliation(s)
| | - Naoaki Sakata
- Department of Surgery, Tohoku University, Sendai, Japan
- * E-mail:
| | | | | | - Takeshi Aoki
- Department of Surgery, Tohoku University, Sendai, Japan
| | | | - Yu Katayose
- Department of Surgery, Tohoku University, Sendai, Japan
- Division of Integrated Surgery and Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shinichi Egawa
- Division of International Cooperation for Disaster Mediscine, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Michiaki Unno
- Department of Surgery, Tohoku University, Sendai, Japan
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Schaschkow A, Mura C, Bietiger W, Peronet C, Langlois A, Bodin F, Dissaux C, Bruant-Rodier C, Pinget M, Jeandidier N, Juszczak MT, Sigrist S, Maillard E. Impact of an autologous oxygenating matrix culture system on rat islet transplantation outcome. Biomaterials 2015; 52:180-8. [PMID: 25818424 DOI: 10.1016/j.biomaterials.2015.02.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 01/29/2015] [Accepted: 02/01/2015] [Indexed: 10/23/2022]
Abstract
Disruption of the pancreatic islet environment combined with the decrease in oxygen supply that occurs during isolation leads to poor islet survival. The aim of this study was to validate the benefit of using a plasma-based scaffold supplemented with perfluorodecalin to improve islet transplantation outcome. Rat islets were cultured in three conditions: i) control group, ii) plasma based-matrix (P-matrix), and iii) P-matrix supplemented with emulsified perfluorodecalin. After 24 h culture, matrix/cell contacts (Integrinβ1, p-FAK/FAK, p-Akt/Akt), survival (caspase 3, TUNEL, FDA/PI), function, and HIF-1α translocation were assessed. Afterwards, P-matrices were dissolved and the islets were intraportally transplanted. Graft function was monitored for 31 days with glycaemia and C-peptide follow up. Inflammation was assessed by histology (macrophage and granulocyte staining) and thrombin/anti-thrombin complex measurement. Islet survival correlated with an increase in integrin, FAK, and Akt activation in P-matrices and function was maintained. Perfluorodecalin supplementation decreased translocation of HIF-1α in the nucleus and post-transplantation islet structure was better preserved in P-matrices, but a quicker activation of IBMIR resulted in early loss of graft function. "Oxygenating" P-matrices provided a real benefit to islet survival and resistance in vivo. However, intraportal transplantation is not suitable for this kind of culture due to IBMIR; thus, alternative sites must be explored.
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Affiliation(s)
- A Schaschkow
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France
| | - C Mura
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France
| | - W Bietiger
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France
| | - C Peronet
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France
| | - A Langlois
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France
| | - F Bodin
- Service de chirurgie Plastique et maxillo faciale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - C Dissaux
- Service de chirurgie Plastique et maxillo faciale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - C Bruant-Rodier
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France; Service de chirurgie Plastique et maxillo faciale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - M Pinget
- Structure d'Endocrinologie, Diabète-Nutrition et Addictologie, Pôle NUDE, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - N Jeandidier
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France; Structure d'Endocrinologie, Diabète-Nutrition et Addictologie, Pôle NUDE, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - M T Juszczak
- Department of Vascular Surgery, John Radcliffe Hospital, Oxford, United Kingdom
| | - S Sigrist
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France
| | - E Maillard
- UMR DIATHEC, EA 7294, Centre Européen d'Etude du Diabète, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Bld René Leriche, Strasbourg, France.
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20
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Benton G, Arnaoutova I, George J, Kleinman HK, Koblinski J. Matrigel: from discovery and ECM mimicry to assays and models for cancer research. Adv Drug Deliv Rev 2014; 79-80:3-18. [PMID: 24997339 DOI: 10.1016/j.addr.2014.06.005] [Citation(s) in RCA: 274] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 06/19/2014] [Accepted: 06/24/2014] [Indexed: 01/06/2023]
Abstract
The basement membrane is an important extracellular matrix that is found in all epithelial and endothelial tissues. It maintains tissue integrity, serves as a barrier to cells and to molecules, separates different tissue types, transduces mechanical signals, and has many biological functions that help to maintain tissue specificity. A well-defined soluble basement membrane extract, termed BME/Matrigel, prepared from an epithelial tumor is similar in content to authentic basement membrane, and forms a hydrogel at 24-37°C. It is used in vitro as a substrate for 3D cell culture, in suspension for spheroid culture, and for various assays, such as angiogenesis, invasion, and dormancy. In vivo, BME/Matrigel is used for angiogenesis assays and to promote xenograft and patient-derived biopsy take and growth. Studies have shown that both the stiffness of the BME/Matrigel and its components (i.e. chemical signals) are responsible for its activity with so many different cell types. BME/Matrigel has widespread use in assays and in models that improve our understanding of tumor biology and help define therapeutic approaches.
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Rackham CL, Dhadda PK, Le Lay AM, King AJF, Jones PM. Preculturing Islets With Adipose-Derived Mesenchymal Stromal Cells Is an Effective Strategy for Improving Transplantation Efficiency at the Clinically Preferred Intraportal Site. CELL MEDICINE 2014; 7:37-47. [PMID: 26858891 DOI: 10.3727/215517914x680047] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We have recently shown that preculturing islets with kidney-derived mesenchymal stromal cells (MSCs) improves transplantation outcome in streptozotocin-diabetic mice implanted with a minimal mass of islets beneath the kidney capsule. In the present study, we have extended our previous observations to investigate whether preculturing islets with MSCs can also be used to enhance islet function at the clinically used intraportal site. We have used MSCs derived from adipose tissue, which are more readily accessible than alternative sources in human subjects and can be expanded to clinically efficacious numbers, to preculture islets throughout this study. The in vivo efficacy of grafts consisting of islets precultured alone or with MSCs was tested using a syngeneic streptozotocin-diabetic minimal islet mass model at the clinically relevant intraportal site. Blood glucose concentrations were monitored for 1 month. The vascularization of islets precultured alone or with MSCs was investigated both in vitro and in vivo, using immunohistochemistry. Islet insulin content was measured by radioimmunoassay. The effect of preculturing islets with MSCs on islet function in vitro was investigated using static incubation assays. There was no beneficial angiogenic influence of MSC preculture, as demonstrated by the comparable vascularization of islets precultured alone or with MSCs, both in vitro after 3 days and in vivo 1 month after islet transplantation. However, the in vitro insulin secretory capacity of MSC precultured islets was superior to that of islets precultured alone. In vivo, this was associated with improved glycemia at 7, 14, 21, and 28 days posttransplantation, in recipients of MSC precultured islets compared to islets precultured alone. The area of individual islets within the graft-bearing liver was significantly higher in recipients of MSC precultured islets compared to islets precultured alone. Our experimental studies suggest that preculturing islets with MSCs represents a favorable strategy for improving the efficiency of clinical islet transplantation.
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Affiliation(s)
- Chloe L Rackham
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King's College London , London , UK
| | - Paramjeet K Dhadda
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King's College London , London , UK
| | - Aurélie M Le Lay
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King's College London , London , UK
| | - Aileen J F King
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King's College London , London , UK
| | - Peter M Jones
- Diabetes Research Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King's College London , London , UK
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22
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Farhat B, Almelkar A, Ramachandran K, Williams SJ, Huang HH, Zamierowksi D, Novikova L, Stehno-Bittel L. Small human islets comprised of more β-cells with higher insulin content than large islets. Islets 2013; 5:87-94. [PMID: 23648896 PMCID: PMC4204020 DOI: 10.4161/isl.24780] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
For the past 30 years, data have suggested that unique islet populations exist, based on morphology and glucose sensitivity. Yet little has been done to determine the mechanism of these functional differences. The purpose of this study was to determine whether human islets were comprised functionally unique populations, and to elucidate a possible mechanism. Islets or pancreatic sections from 29 human donors were analyzed. Islets were isolated and measured for insulin secretion, cell composition and organization, insulin and glucagon granule density and insulin content. Insulin secretion was significantly greater in small compared with large islets. In sectioned human pancreata, β-cells comprised a higher proportion of the total endocrine cells in small islets (63%) than large islets (39%). A higher percentage of β-cells in small islets contacted blood vessels (44%) compared with large islets (31%). Total insulin content of isolated human islets was significantly greater in the small (1323 ± 512 μIU/IE) compared with large islets (126 ± 48 μIU/IE). There was less immunostaining for insulin in the large islets from human pancreatic sections, especially in the core of the islet, compared with small islets. The results suggest that differences in insulin secretion between large and small islets may be due to a higher percentage of β-cells in small islets with more β-cells in contact with blood vessels and a higher concentration of insulin/β-cell in small islets.
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Affiliation(s)
- Bilal Farhat
- School of Medicine; University of Kansas Medicine Center; Kansas City, KS USA
| | - Akshay Almelkar
- Department of Physical Therapy and Rehabilitation Science; University of Kansas Medical Center; Kansas City, KS USA
| | - Karthik Ramachandran
- Department of Physical Therapy and Rehabilitation Science; University of Kansas Medical Center; Kansas City, KS USA
- Likarda, LLC; Kansas City, KS USA
| | - S. Janette Williams
- School of Medicine; University of Kansas Medicine Center; Kansas City, KS USA
| | - Han-Hung Huang
- Physical Therapy Program; Angelo State University; Texas Tech University System; San Angelo, TX USA
| | - David Zamierowksi
- Department of Physical Therapy and Rehabilitation Science; University of Kansas Medical Center; Kansas City, KS USA
| | - Lesya Novikova
- Department of Physical Therapy and Rehabilitation Science; University of Kansas Medical Center; Kansas City, KS USA
| | - Lisa Stehno-Bittel
- Department of Physical Therapy and Rehabilitation Science; University of Kansas Medical Center; Kansas City, KS USA
- Correspondence to: Lisa Stehno-Bittel,
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