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Kumar A, Lo Nigro A, Gysemans C, Cai Q, Esguerra C, Nelson-Holte M, Heremans Y, Jiménez-González M, Porciuncula A, Mathieu C, Binas B, Heimberg H, Prosper F, Hering B, Verfaillie CM, Barajas M. Reversal of hyperglycemia by insulin-secreting rat bone marrow- and blastocyst-derived hypoblast stem cell-like cells. PLoS One 2013; 8:e63491. [PMID: 23671681 PMCID: PMC3650069 DOI: 10.1371/journal.pone.0063491] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 04/07/2013] [Indexed: 11/18/2022] Open
Abstract
β-cell replacement may efficiently cure type 1 diabetic (T1D) patients whose insulin-secreting β-cells have been selectively destroyed by autoantigen-reactive T cells. To generate insulin-secreting cells we used two cell sources: rat multipotent adult progenitor cells (rMAPC) and the highly similar rat extra-embryonic endoderm precursor (rXEN-P) cells isolated under rMAPC conditions from blastocysts (rHypoSC). rMAPC/rHypoSC were sequentially committed to definitive endoderm, pancreatic endoderm, and β-cell like cells. On day 21, 20% of rMAPC/rHypoSC progeny expressed Pdx1 and C-peptide. rMAPCr/HypoSC progeny secreted C-peptide under the stimulus of insulin agonist carbachol, and was inhibited by the L-type voltage-dependent calcium channel blocker nifedipine. When rMAPC or rHypoSC differentiated d21 progeny were grafted under the kidney capsule of streptozotocin-induced diabetic nude mice, hyperglycemia reversed after 4 weeks in 6/10 rMAPC- and 5/10 rHypoSC-transplanted mice. Hyperglycemia recurred within 24 hours of graft removal and the histological analysis of the retrieved grafts revealed presence of Pdx1-, Nkx6.1- and C-peptide-positive cells. The ability of both rMAPC and HypoSC to differentiate to functional β-cell like cells may serve to gain insight into signals that govern β-cell differentiation and aid in developing culture systems to commit other (pluripotent) stem cells to clinically useful β-cells for cell therapy of T1D.
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Affiliation(s)
- Anujith Kumar
- Stamcel Instituut Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
- Manipal Institute of Regenerative Medicine, Domlur, Bangalore, India
| | - Antonio Lo Nigro
- Stamcel Instituut Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Conny Gysemans
- Laboratory for Experimental Medicine and Endocrinology, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Qing Cai
- Stamcel Instituut Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Camila Esguerra
- Stamcel Instituut Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Molly Nelson-Holte
- Stamcel Instituut Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Yves Heremans
- Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, United States of America
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - María Jiménez-González
- Hematology and Cell Therapy, Clinica Universidad de Navarra and Foundation for Applied Medical Research, Division of Oncology, University of Navarra, Pamplona, Spain
| | - Angelo Porciuncula
- Hematology and Cell Therapy, Clinica Universidad de Navarra and Foundation for Applied Medical Research, Division of Oncology, University of Navarra, Pamplona, Spain
| | - Chantal Mathieu
- Laboratory for Experimental Medicine and Endocrinology, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Bert Binas
- Division of Molecular & Life Science, College of Science and Technology, Hanyang University, Ansan, South Korea
| | - Harry Heimberg
- Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
| | - Felipe Prosper
- Hematology and Cell Therapy, Clinica Universidad de Navarra and Foundation for Applied Medical Research, Division of Oncology, University of Navarra, Pamplona, Spain
| | - Bernhard Hering
- Diabetes Institute for Immunology and Transplantation. University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Catherine M. Verfaillie
- Stamcel Instituut Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
- Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, United States of America
- * E-mail: (CMV); (MB)
| | - Miguel Barajas
- Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, United States of America
- Hematology and Cell Therapy, Clinica Universidad de Navarra and Foundation for Applied Medical Research, Division of Oncology, University of Navarra, Pamplona, Spain
- * E-mail: (CMV); (MB)
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Carvalho CPDF, Martins JCR, da Cunha DA, Boschero AC, Collares-Buzato CB. Histomorphology and ultrastructure of pancreatic islet tissue during in vivo maturation of rat pancreas. Ann Anat 2006; 188:221-34. [PMID: 16711161 DOI: 10.1016/j.aanat.2005.10.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In this study, we have investigated the structural and ultrastructural features of pancreatic islet tissue during rat postnatal development. For this purpose, we used neonatal (1-2 days old), young (21 days old) and adult (3-4 months old) rats. From a functional point of view, neonatal islet tissue displayed a relatively poor insulin secretory response to glucose stimulation in comparison with the adult ones. Histological analysis showed that neonatal islet cells display a less organized morphology in comparison with the young and adult ones, characterized by a less defined form and the presence of ductal structures within or nearby the islet. Regarding the islet cytoarchitecture, no differences were observed among all animal groups studied. B-cells were always typically detected within the islet core while A-cells occupied the islet periphery area. No marked differences were found during postnatal animal development regarding the ultrastructural aspect of the endocrine cells and their secretory granules. Nevertheless, quantitative analysis showed a lower B-cell/non-B-cell ratio, a higher association with ducts and an increased immunoreaction for proliferating cell nuclear antigen (PCNA) in neonatal islets as compared to young and adults. In conclusion, the acquisition of an adult pattern of insulin secretion may require an appropriate histoarchitecture and B-cell/non-B-cell proportion that may affect crucial regulatory events such as the paracrine and/or the cell-cell interaction or communication within the islet.
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Mendonça AC, Carneiro EM, Bosqueiro JR, Crepaldi-Alves SC, Boschero AC. Development of the insulin secretion mechanism in fetal and neonatal rat pancreatic B-cells: response to glucose, K+, theophylline, and carbamylcholine. Braz J Med Biol Res 1998; 31:841-6. [PMID: 9698832 DOI: 10.1590/s0100-879x1998000600018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
We studied the development of the insulin secretion mechanism in the pancreas of fetal (19- and 21-day-old), neonatal (3-day-old), and adult (90-day-old) rats in response to stimulation with 8.3 or 16.7 mM glucose, 30 mM K+, 5 mM theophylline (Theo) and 200 microM carbamylcholine (Cch). No effect of glucose or high K+ was observed on the pancreas from 19-day-old fetuses, whereas Theo and Cch significantly increased insulin secretion at this age (82 and 127% above basal levels, respectively). High K+ also failed to alter the insulin secretion in the pancreas from 21-day-old fetuses, whereas 8.3 mM and 16.7 mM glucose significantly stimulated insulin release by 41 and 54% above basal levels, respectively. Similar results were obtained with Theo and Cch. A marked effect of glucose on insulin secretion was observed in the pancreas of 3-day-old rats, reaching 84 and 179% above basal levels with 8.3 mM and 16.7 mM glucose, respectively. At this age, both Theo and Cch increased insulin secretion to close to two-times basal levels. In islets from adult rats, 8.3 mM and 16.7 mM glucose, Theo, and Cch increased the insulin release by 104, 193, 318 and 396% above basal levels, respectively. These data indicate that pancreatic B-cells from 19-day-old fetuses were already sensitive to stimuli that use either cAMP or IP3 and DAG as second messengers, but insensitive to stimuli such as glucose and high K+ that induce membrane depolarization. The greater effect of glucose on insulin secretion during the neonatal period indicates that this period is crucial for the maturation of the glucose-sensing mechanism in B-cells.
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Affiliation(s)
- A C Mendonça
- Departamento de Fisiologia e Biofísica, Universidade Estadual de Campinas, SP, Brasil
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Kim SJ, Sung JJ, Park YS. L-type and dihydropyridine-resistant calcium channel trigger exocytosis with similar efficacy in single rat pancreatic beta cells. Biochem Biophys Res Commun 1998; 243:878-84. [PMID: 9501019 DOI: 10.1006/bbrc.1998.8197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The relationship between depolarization-induced exocytosis and inward Ca2+ current (Ica) in single isolated rat pancreatic beta cells was investigated in perforated patch recordings. Ica was elicited by depolarization and change in cell membrane capacitance (Cm) was monitored as an indicator of resultant exocytosis. While there was significant variety of change in Cm and Ca2+ influx, the increase in Cm had positive correlation with Ca2+ influx and also with duration of depolarization. Removal of extracellular Ca2+ or inclusion of extracellular Cd2+ (100 microM) completely eliminated both Ica and increase in Cm following depolarization. Dihydropyridine (DHP) Ca2+ channel blocker (5 microM) partly and in parallel suppressed depolarization-induced peak Ica, Ca2+ influx, and change in Cm. These data suggest that rat pancreatic beta cell expresses at least two types of Ca2+ channels; Ca2+ entry through these DHP-sensitive, presumably L-type, and DHP-insensitive channels triggers exocytosis with similar efficacy.
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Affiliation(s)
- S J Kim
- Department of Physiology & Biophysics, Seoul National University, College of Medicine, Korea
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