1
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Challenges with Cell-based Therapies for Type 1 Diabetes Mellitus. Stem Cell Rev Rep 2022; 19:601-624. [PMID: 36434300 DOI: 10.1007/s12015-022-10482-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2022] [Indexed: 11/27/2022]
Abstract
Type 1 diabetes (T1D) is a chronic, lifelong metabolic disease. It is characterised by the autoimmune-mediated loss of insulin-producing pancreatic β cells in the islets of Langerhans (β-islets), resulting in disrupted glucose homeostasis. Administration of exogenous insulin is the most common management method for T1D, but this requires lifelong reliance on insulin injections and invasive blood glucose monitoring. Replacement therapies with beta cells are being developed as an advanced curative treatment for T1D. Unfortunately, this approach is limited by the lack of donated pancreatic tissue, the difficulties in beta cell isolation and viability maintenance, the longevity of the transplanted cells in vivo, and consequently high costs. Emerging approaches to address these limitations are under intensive investigations, including the production of insulin-producing beta cells from various stem cells, and the development of bioengineered devices including nanotechnologies for improving islet transplantation efficacy without the need for recipients taking toxic anti-rejection drugs. These emerging approaches present promising prospects, while the challenges with the new techniques need to be tackled for ultimately clinical treatment of T1D. This review discussed the benefits and limitations of the cell-based therapies for beta cell replacement as potential curative treatment for T1D, and the applications of bioengineered devices including nanotechnology to overcome the challenges associated with beta cell transplantation.
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2
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Rezaei Zonooz E, Ghezelayagh Z, Moradmand A, Baharvand H, Tahamtani Y. Protocol-Dependent Morphological Changes in Human Embryonic Stem Cell Aggregates during Differentiation toward Early Pancreatic Fate. Cells Tissues Organs 2022; 213:223-234. [PMID: 36380637 DOI: 10.1159/000527863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 10/11/2022] [Indexed: 02/17/2024] Open
Abstract
Cell therapy is one of the promising approaches used against type 1 diabetes. Efficient generation of human embryonic stem cell (hESC)-derived pancreatic progenitors (PPs) is of great importance. Since signaling pathways underlying human pancreas development are not yet fully understood, various differentiation protocols are conducted, each considering variable duration, timing, and concentrations of growth factors and small molecules. Therefore, we compared two PP differentiation protocols in static suspension culture. We tested modified protocols developed by Pagliuca et al. (protocol 1) and Royan researchers (protocol 2) until early PP stage. The morphological changes of hESC aggregates during differentiation, and also gene and protein expression after differentiation, were evaluated. Different morphological structures were formed in each protocol. Quantitative gene expression analysis, flow cytometry, and immunostaining revealed a high level of PDX1 expression on day 13 of Royan's differentiation protocol compared to protocol 1. Our data showed that using protocol 2, cells were further differentiated until day 16, showing higher efficiency of early PPs. Moreover, protocol 2 is able to produce hESCs-PPs in a static suspension culture. Since protocol 2 is inexpensive in terms of media, growth factors, and chemicals, it can be used for massive production of PPs using static and dynamic suspension cultures.
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Affiliation(s)
- Elmira Rezaei Zonooz
- Department of Developmental Biology, Faculty of Sciences and Advanced Technologies in Biology, University of Science and Culture, ACECR, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Zahra Ghezelayagh
- Department of Developmental Biology, Faculty of Sciences and Advanced Technologies in Biology, University of Science and Culture, ACECR, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Azadeh Moradmand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hossein Baharvand
- Department of Developmental Biology, Faculty of Sciences and Advanced Technologies in Biology, University of Science and Culture, ACECR, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Yaser Tahamtani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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3
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Afjeh-Dana E, Naserzadeh P, Moradi E, Hosseini N, Seifalian AM, Ashtari B. Stem Cell Differentiation into Cardiomyocytes: Current Methods and Emerging Approaches. Stem Cell Rev Rep 2022; 18:2566-2592. [PMID: 35508757 DOI: 10.1007/s12015-021-10280-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2021] [Indexed: 12/26/2022]
Abstract
Cardiovascular diseases (CVDs) are globally known to be important causes of mortality and disabilities. Common treatment strategies for CVDs, such as pharmacological therapeutics impose serious challenges due to the failure of treatments for myocardial necrosis. By contrast, stem cells (SCs) based therapies are seen to be promising approaches to CVDs treatment. In such approaches, cardiomyocytes are differentiated from SCs. To fulfill SCs complete potential, the method should be appointed to generate cardiomyocytes with more mature structure and well-functioning operations. For heart repairing applications, a greatly scalable and medical-grade cardiomyocyte generation must be used. Nonetheless, there are some challenges such as immune rejection, arrhythmogenesis, tumorigenesis, and graft cell death potential. Herein, we discuss the types of potential SCs, and commonly used methods including embryoid bodies related techniques, co-culture, mechanical stimulation, and electrical stimulation and their applications, advantages and limitations in this field. An estimated 17.9 million people died from CVDs in 2019, representing 32 % of all global deaths. Of these deaths, 85 % were due to heart attack and stroke.
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Affiliation(s)
- Elham Afjeh-Dana
- Radiation Biology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Parvaneh Naserzadeh
- Radiation Biology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Elham Moradi
- Radiation Biology Research Centre, Iran University of Medical Sciences, Tehran, Iran.,Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Nasrin Hosseini
- Neuroscience Research Centre, Iran University of Medical Sciences, Tehran, Iran.
| | - Alexander Marcus Seifalian
- Nanotechnology & Regenerative Medicine Commercialisation Centre (NanoRegMed Ltd), London BioScience Innovation Centre, London, UK
| | - Behnaz Ashtari
- Radiation Biology Research Centre, Iran University of Medical Sciences, Tehran, Iran. .,Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran. .,Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran.
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4
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Seo NH, Song HR, Han MK. SIRT1 Knockdown Enhances the Differentiation of Human Embryonic Stem Cells into Pancreatic β Cells. Dev Reprod 2020; 23:391-399. [PMID: 31993545 PMCID: PMC6985299 DOI: 10.12717/dr.2019.23.4.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/12/2019] [Accepted: 11/25/2019] [Indexed: 11/17/2022]
Abstract
Nicotinamide is used to maturate pancreatic progenitors from embryonic stem cells
(ESCs) into insulin-producing cells (IPCs). It has been known that nicotinamide
inhibits the enzymatic activity of SIRT1, an NAD+-dependent
deacetylase. Here we show that SIRT1 knockdown enhances the differentiation of
human ESCs into IPCs. SIRT1 knockdown enhances the clustering size of IPCs and
the expression of pancreatic genes including c-peptide, pancreas/duodenum
homeobox protein 1 (PDX1), insulin, somatostatin, glucagon and Nkx6.1 in human
ESC-derived IPCs. In addition, We found that IPCs differentiated from SIRT1
knockdowned human ESCs have more zinc compared to those from control human ESCs.
Our data suggest that SIRT1 negatively regulates the differentiation of β
cells from human ESCs.
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Affiliation(s)
- Nan-Hee Seo
- Dept. of Microbiology, Jeonbuk National University Medical School, Jeonju 54896, Korea
| | - Hwa-Ryung Song
- Dept. of Microbiology, Jeonbuk National University Medical School, Jeonju 54896, Korea
| | - Myung-Kwan Han
- Dept. of Microbiology, Jeonbuk National University Medical School, Jeonju 54896, Korea
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5
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Rattananinsruang P, Dechsukhum C, Leeanansaksiri W. Establishment of Insulin-Producing Cells From Human Embryonic Stem Cells Underhypoxic Condition for Cell Based Therapy. Front Cell Dev Biol 2018; 6:49. [PMID: 29868580 PMCID: PMC5962719 DOI: 10.3389/fcell.2018.00049] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/16/2018] [Indexed: 12/27/2022] Open
Abstract
Diabetes mellitus (DM) is a group of diseases characterized by abnormally high levels of glucose in the blood stream. In developing a potential therapy for diabetic patients, pancreatic cells transplantation has drawn great attention. However, the hinder of cell transplantation for diabetes treatment is insufficient sources of insulin-producing cells. Therefore, new cell based therapy need to be developed. In this regard, human embryonic stem cells (hESCs) may serve as good candidates for this based on their capability of differentiation into various cell types. In this study, we designed a new differentiation protocol that can generate hESC-derived insulin-producing cells (hES-DIPCs) in a hypoxic condition. We also emphasized on the induction of definitive endoderm during embryoid bodies (EBs) formation. After induction of hESCs differentiation into insulin-producing cells (IPCs), the cells obtained from the cultures exhibited pancreas-related genes such as Pdx1, Ngn3, Nkx6.1, GLUT2, and insulin. These cells also showed positive for DTZ-stained cellular clusters and contained ability of insulin secretion in a glucose-dependent manner. After achievement to generated functional hES-DIPCs in vitro, some of the hES-DIPCs were then encapsulated named encapsulated hES-DIPCs. The data showed that the encapsulated cells could possess the function of insulin secretion in a time-dependent manner. The hES-DIPCs and encapsulated hES-DIPCs were then separately transplanted into STZ-induced diabetic mice. The findings showed the significant blood glucose levels regulation capacity and declination of IL-1β concentration in all transplanted mice. These results indicated that both hES-DIPCs and encapsulated hES-DIPCs contained the ability to sustain hyperglycemia condition as well as decrease inflammatory cytokine level in vivo. The findings of this study may apply for generation of a large number of hES-DIPCs in vitro. In addition, the implication of this work is therapeutic value in type I diabetes treatment in the future. The application for type II diabetes treatment remain to be investigated.
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Affiliation(s)
- Piyaporn Rattananinsruang
- School of Preclinic, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Chavaboon Dechsukhum
- School of Pathology, Institute of Medicine, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Wilairat Leeanansaksiri
- School of Preclinic, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
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6
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Enderami SE, Soleimani M, Mortazavi Y, Nadri S, Salimi A. Generation of insulin‐producing cells from human adipose‐derived mesenchymal stem cells on PVA scaffold by optimized differentiation protocol. J Cell Physiol 2017; 233:4327-4337. [DOI: 10.1002/jcp.26266] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 11/10/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Seyed Ehsan Enderami
- Stem Cell Technology Research CenterTehranIran
- Nanobiotechnology Research CenterBaqiyatallah University of Medical SciencesTehranIran
| | - Masoud Soleimani
- Department of HematologyFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
| | - Yousef Mortazavi
- Department of Medical Biotechnology and NanotechnologyFaculty of MedicineZanjan University of Medical SciencesZanjanIran
- Cancer Gene Therapy Research CenterZanjan University of Medical SciencesZanjanIran
| | - Samad Nadri
- Department of Medical Biotechnology and NanotechnologyFaculty of MedicineZanjan University of Medical SciencesZanjanIran
| | - Ali Salimi
- Nanobiotechnology Research CenterBaqiyatallah University of Medical SciencesTehranIran
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7
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Yu F, Wei R, Yang J, Liu J, Yang K, Wang H, Mu Y, Hong T. FoxO1 inhibition promotes differentiation of human embryonic stem cells into insulin producing cells. Exp Cell Res 2017; 362:227-234. [PMID: 29157981 DOI: 10.1016/j.yexcr.2017.11.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/13/2017] [Accepted: 11/15/2017] [Indexed: 12/14/2022]
Abstract
Insulin-producing cells (IPCs) derived from human embryonic stem cells (hESCs) hold great potential for cell transplantation therapy in diabetes. Tremendous progress has been made in inducing differentiation of hESCs into IPCs in vitro, of which definitive endoderm (DE) protocol mimicking foetal pancreatic development has been widely used. However, immaturity of the obtained IPCs limits their further applications in treating diabetes. Forkhead box O1 (FoxO1) is involved in the differentiation and functional maintenance of murine pancreatic β cells, but its role in human β cell differentiation is under elucidation. Here, we showed that although FoxO1 expression level remained consistent, cytoplasmic phosphorylated FoxO1 protein level increased during IPC differentiation of hESCs induced by DE protocol. Lentiviral silencing of FoxO1 in pancreatic progenitors upregulated the levels of pancreatic islet differentiation-related genes and improved glucose-stimulated insulin secretion response in their progeny IPCs, whereas overexpression of FoxO1 showed the opposite effects. Notably, treatment with the FoxO1 inhibitor AS1842856 displayed similar effects with FoxO1 knockdown in pancreatic progenitors. These effects were closely associated with the mutually exclusive nucleocytoplasmic shuttling of FoxO1 and Pdx1 in the AS1842856-treated pancreatic progenitors. Our data demonstrated a promising effect of FoxO1 inhibition by the small molecule on gene expression profile during the differentiation, and in turn, on determining IPC maturation via modulating subcellular location of FoxO1 and Pdx1. Therefore, we identify a novel role of FoxO1 inhibition in promoting IPC differentiation of hESCs, which may provide clues for induction of mature β cells from hESCs and clinical applications in regenerative medicine.
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Affiliation(s)
- Fei Yu
- Department of Endocrinology and Metabolism, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China
| | - Rui Wei
- Department of Endocrinology and Metabolism, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China.
| | - Jin Yang
- Department of Endocrinology and Metabolism, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China
| | - Junling Liu
- Department of Endocrinology and Metabolism, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China
| | - Kun Yang
- Department of Endocrinology and Metabolism, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China
| | - Haining Wang
- Department of Endocrinology and Metabolism, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China
| | - Yiming Mu
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Tianpei Hong
- Department of Endocrinology and Metabolism, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China.
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8
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Vieira A, Druelle N, Avolio F, Napolitano T, Navarro-Sanz S, Silvano S, Collombat P. β-Cell Replacement Strategies: The Increasing Need for a "β-Cell Dogma". Front Genet 2017. [PMID: 28634486 PMCID: PMC5459879 DOI: 10.3389/fgene.2017.00075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Type 1 diabetes is an auto-immune disease resulting in the loss of pancreatic β-cells and, consequently, in chronic hyperglycemia. Insulin supplementation allows diabetic patients to control their glycaemia quite efficiently, but treated patients still display an overall shortened life expectancy and an altered quality of life as compared to their healthy counterparts. In this context and due to the ever increasing number of diabetics, establishing alternative therapies has become a crucial research goal. Most current efforts therefore aim at generating fully functional insulin-secreting β-like cells using multiple approaches. In this review, we screened the literature published since 2011 and inventoried the selected markers used to characterize insulin-secreting cells generated by in vitro differentiation of stem/precursor cells or by means of in vivo transdifferentiation. By listing these features, we noted important discrepancies when comparing the different approaches for the initial characterization of insulin-producing cells as true β-cells. Considering the recent advances achieved in this field of research, the necessity to establish strict guidelines has become a subject of crucial importance, especially should one contemplate the next step, which is the transplantation of in vitro or ex vivo generated insulin-secreting cells in type 1 diabetic patients.
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Affiliation(s)
- Andhira Vieira
- Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, iBV, Université Côte d'AzurNice, France
| | - Noémie Druelle
- Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, iBV, Université Côte d'AzurNice, France
| | - Fabio Avolio
- Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, iBV, Université Côte d'AzurNice, France
| | - Tiziana Napolitano
- Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, iBV, Université Côte d'AzurNice, France
| | - Sergi Navarro-Sanz
- Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, iBV, Université Côte d'AzurNice, France
| | - Serena Silvano
- Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, iBV, Université Côte d'AzurNice, France
| | - Patrick Collombat
- Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, iBV, Université Côte d'AzurNice, France
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9
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Martinez-Gamboa M, Cruz-Vega DE, Moreno-Cuevas J, Gonzalez-Garza MT. Induction of Nestin Early Expression as a Hallmark for Mesenchymal Stem Cells Expression of PDX-1 as a Pre-disposing Factor for Their Conversion into Insulin Producing Cells. Int J Stem Cells 2017; 10:76-82. [PMID: 28024317 PMCID: PMC5488779 DOI: 10.15283/ijsc16040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2016] [Indexed: 12/18/2022] Open
Abstract
Diabetes constitutes a worldwide epidemic that affects all ethnic groups. Cell therapy is one of the best alternatives of treatment, by providing an effective way to regenerate insulin-producing cells lost during the course of the disease, but many issues remain to be solved. Several groups have been working in the development of a protocol capable of differentiating Mesenchymal Stem Cells (MSCs) into physiologically sound Insulin Producing Cells (IPCs). In order to obtain a simple, fast and direct method, we propose in this manuscript the induction of MSCs to express NESTIN in a short time period (2 h), proceeded by incubation in a low glucose induced medium (24 h) and lastly by incubation in a high glucose medium. Samples from cell cultures incubated in high glucose medium from 12 to 168 h were obtained to detect the expression of INSULIN-1, INSULIN -2, PDX-1 and GLUT-2 genes. Induced cells were exposed to a glucose challenge, in order to assess the production of insulin. This method allowed us to obtain cells expressing PDX-1, which resembles a progenitor insulin-producing cell.
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Affiliation(s)
- Marisela Martinez-Gamboa
- Escuela De Ciencias De La Salud, Valle de las Palmas, Universidad Autónoma de Baja California, Tijuana, B.C, CP 22263, México.,Cell Therapy Group, Escuela Nacional De Medicina, Tecnológico de Monterrey, Monterrey, CP 64710, NL, México
| | - Delia Elba Cruz-Vega
- Cell Therapy Group, Escuela Nacional De Medicina, Tecnológico de Monterrey, Monterrey, CP 64710, NL, México
| | - Jorge Moreno-Cuevas
- Cell Therapy Group, Escuela Nacional De Medicina, Tecnológico de Monterrey, Monterrey, CP 64710, NL, México
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10
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Mao GH, Lu P, Wang YN, Tian CG, Huang XH, Feng ZG, Zhang JL, Chang HY. Role of PI3K p110β in the differentiation of human embryonic stem cells into islet-like cells. Biochem Biophys Res Commun 2017; 488:109-115. [PMID: 28479244 DOI: 10.1016/j.bbrc.2017.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 05/03/2017] [Indexed: 12/16/2022]
Abstract
To investigate the effects of the PI3K inhibitors on the differentiation of insulin-producing cells derived from human embryonic stem cells. Here, we report that human embryonic stem cells induced by phosphatidylinositol-3-kinase (PI3K) p110β inhibitors could produce more mature islet-like cells. Findings were validated by immunofluorescence analysis, quantitative real-time PCR, insulin secretion in vitro and cell transplantation for the diabetic SCID mice. Immunofluorescence analysis revealed that unihormonal insulin-positive cells were predominant in cultures with rare polyhormonal cells. Real-time PCR data showed that islet-like cells expressed key markers of pancreatic endocrine hormones and mature pancreatic β cells including MAFA. Furthermore, this study showed that the expression of most pancreatic endocrine hormones was similar between groups treated with the LY294002 (nonselective PI3K inhibitor) and TGX-221 (PI3K isoform selective inhibitors of class 1β) derivatives. However, the level of insulin mRNA in TGX-221-treated cells was significantly higher than that in LY294002-treated cells. In addition, islet-like cells displayed glucose-stimulated insulin secretion in vitro. After transplantation, islet-like cells improved glycaemic control and ameliorated the survival outcome in diabetic mice. This study demonstrated an important role for PI3K p110β in regulating the differentiation and maturation of islet-like cells derived from human embryonic stem cells.
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Affiliation(s)
- Gen-Hong Mao
- Reproductive Medical Centre, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China.
| | - Ping Lu
- Reproductive Medical Centre, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China
| | - Ya-Nan Wang
- Reproductive Medical Centre, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China
| | - Chen-Guang Tian
- Department of Endocrinology and Metabolic Diseases, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China
| | - Xiao-Hui Huang
- Reproductive Medical Centre, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China
| | - Zong-Gang Feng
- Reproductive Medical Centre, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China
| | - Jin-Lan Zhang
- Reproductive Medical Centre, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China
| | - Hong-Yang Chang
- Reproductive Medical Centre, The Second Affiliated Hospital of Zhengzhou University, Henan Province, 450014, China
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11
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Enderami SE, Mortazavi Y, Soleimani M, Nadri S, Biglari A, Mansour RN. Generation of Insulin-Producing Cells From Human-Induced Pluripotent Stem Cells Using a Stepwise Differentiation Protocol Optimized With Platelet-Rich Plasma. J Cell Physiol 2017; 232:2878-2886. [DOI: 10.1002/jcp.25721] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 11/30/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Seyed Ehsan Enderami
- Department of Medical Biotechnology Nanotechnology; Faculty of Medicine; Zanjan University of Medical Sciences; Zanjan Iran
| | - Yousef Mortazavi
- Department of Medical Biotechnology Nanotechnology; Faculty of Medicine; Zanjan University of Medical Sciences; Zanjan Iran
- Cancer Gene Therapy Research Center; Zanjan University of Medical Sciences; Zanjan Iran
| | - Masoud Soleimani
- Department of Hematology; Faculty of Medical Sciences; Tarbiat Modares University; Tehran Iran
| | - Samad Nadri
- Department of Medical Biotechnology Nanotechnology; Faculty of Medicine; Zanjan University of Medical Sciences; Zanjan Iran
| | - Alireza Biglari
- Department of Molecular Medicine and Genetics; Faculty of Medicine; Zanjan University of Medical Sciences; Zanjan Iran
| | - Reyhaneh Nassiri Mansour
- Department of Clinical Biochemistry; Faculty of Medicine; Zanjan University of Medical Sciences; Zanjan Iran
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12
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Al Madhoun A, Ali H, AlKandari S, Atizado VL, Akhter N, Al-Mulla F, Atari M. Defined three-dimensional culture conditions mediate efficient induction of definitive endoderm lineage from human umbilical cord Wharton's jelly mesenchymal stem cells. Stem Cell Res Ther 2016; 7:165. [PMID: 27852316 PMCID: PMC5111269 DOI: 10.1186/s13287-016-0426-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 10/18/2016] [Indexed: 12/29/2022] Open
Abstract
Background Wharton’s jelly-derived mesenchymal stem cells (WJ-MSCs) are gaining increasing interest as an alternative source of stem cells for regenerative medicine applications. Definitive endoderm (DE) specification is a prerequisite for the development of vital organs such as liver and pancreas. Hence, efficient induction of the DE lineage from stem cells is crucial for subsequent generation of clinically relevant cell types. Here we present a defined 3D differentiation protocol of WJ-MSCs into DE cells. Methods WJ-MSCs were cultured in suspension to generate spheroids, about 1500 cells each, for 7 days. The serum-free differentiation media contained specific growth factors, cytokines, and small molecules that specifically regulate signaling pathways including sonic hedgehog, bone morphogenetic protein, Activin/Wnt, and Notch. Results We obtained more than 85 % DE cells as shown with FACS analysis using antibodies directed against the DE marker CXCR4. In addition, biochemical and molecular analysis of bona-fide DE markers revealed a time-course induction of Sox17, CXCR4, and FoxA2. Focused PCR-based array also indicated a specific induction into the DE lineage. Conclusions In this study, we report an efficient serum-free protocol to differentiate WJ-MSCs into DE cells utilizing 3D spheroid formation. Our approach might aid in the development of new protocols to obtain DE-derivative lineages including liver-like and pancreatic insulin-producing cells. Electronic supplementary material The online version of this article (doi:10.1186/s13287-016-0426-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Hamad Ali
- Research Division, Dasman Diabetes Institute, 1180, Dasman, Kuwait.,Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center, Kuwait University, Al-Jabriya, Kuwait
| | - Sarah AlKandari
- Research Division, Dasman Diabetes Institute, 1180, Dasman, Kuwait
| | | | - Nadeem Akhter
- Research Division, Dasman Diabetes Institute, 1180, Dasman, Kuwait
| | - Fahd Al-Mulla
- Department of Pathology, Molecular Pathology Unit, Faculty of Medicine, Health Sciences Center, Kuwait University, Al-Jabriya, Kuwait
| | - Maher Atari
- UIC Regenerative Medicine Research Institute, International University of Catalonia, Barcelona, Spain
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Mehrfarjam Z, Esmaeili F, Shabani L, Ebrahimie E. Induction of pancreatic β cell gene expression in mesenchymal stem cells. Cell Biol Int 2016; 40:486-500. [DOI: 10.1002/cbin.10567] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 11/23/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Zahra Mehrfarjam
- Razi Herbal Medicines Research Center; Lorestan University of Medical Sciences; P.O. Box 681499468 Khorramabad Iran
| | - Fariba Esmaeili
- Faculty of Basic Sciences; Department of Biology; University of Isfahan; P.O. Box 8174673441 Isfahan Iran
- Research Institute of Biotechnology; Shahrekord University; P.O. Box 115 Shahrekord Iran
| | - Leila Shabani
- Research Institute of Biotechnology; Shahrekord University; P.O. Box 115 Shahrekord Iran
| | - Esmaeil Ebrahimie
- Institute of Biotechnology; Shiraz University; Shiraz Iran
- Division of Information Technology, Engineering & Environment; School of Information Technology and Mathematical Sciences; University of South Australia; Adelaide Australia
- Department of Genetics and Evolution; The University of Adelaide; Adelaide Australia
- Faculty of Science and Engineering; School of Biological Sciences; Flinders University; Adelaide Australia
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Wei R, Hong T. Lineage Reprogramming: A Promising Road for Pancreatic β Cell Regeneration. Trends Endocrinol Metab 2016; 27:163-176. [PMID: 26811208 DOI: 10.1016/j.tem.2016.01.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 12/24/2015] [Accepted: 01/06/2016] [Indexed: 12/18/2022]
Abstract
Cell replacement therapy is a promising method to restore pancreatic β cell function and cure diabetes. Distantly related cells (fibroblasts, keratinocytes, and muscle cells) and developmentally related cells (hepatocytes, gastrointestinal, and pancreatic exocrine cells) have been successfully reprogrammed into β cells in vitro and in vivo. However, while some reprogrammed β cells bear similarities to bona fide β cells, others do not develop into fully functional β cells. Here we review various strategies currently used for β cell reprogramming, including ectopic expression of specific transcription factors associated with islet development, repression of maintenance factors of host cells, regulation of epigenetic modifications, and microenvironmental changes. Development of simple and efficient reprogramming methods is a key priority for developing fully functional β cells suitable for cell replacement therapy.
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Affiliation(s)
- Rui Wei
- Department of Endocrinology and Metabolism, Peking University Third Hospital, Beijing 100191, China
| | - Tianpei Hong
- Department of Endocrinology and Metabolism, Peking University Third Hospital, Beijing 100191, China.
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SUN YU, ZHANG MENGCHAO, JI SHANGWEI, LIU LIN. Induction differentiation of rabbit adipose-derived stromal cells into insulin-producing cells in vitro. Mol Med Rep 2015; 12:6835-40. [DOI: 10.3892/mmr.2015.4305] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 07/17/2015] [Indexed: 11/05/2022] Open
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Nekoei SM, Azarpira N, Sadeghi L, Kamalifar S. In vitro differentiation of human umbilical cord Wharton’s jelly mesenchymal stromal cells to insulin producing clusters. World J Clin Cases 2015; 3:640-649. [PMID: 26244156 PMCID: PMC4517339 DOI: 10.12998/wjcc.v3.i7.640] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 04/23/2015] [Accepted: 05/18/2015] [Indexed: 02/05/2023] Open
Abstract
AIM: To investigate the differentiation of human Wharton’s jelly derived mesenchymal stromal cells (WJ-MSCs) to insulin producing clusters (IPC) this study was conducted.
METHODS: The umbilical cords samples were collected from full term caesarian section mothers and the WJ-MSCS were cultured from tissue explants in High glucose-Dulbecco’s Modified Eagle Medium (H-DMEM); H-DMEM supplemented with 10% fetal bovine serum (FBS) and antibiotics. The expression of CD90, CD44, CD105, CD34 and CD133 as well as osteogenic and adipogenic differentiation of cells in appropriate medium were also evaluated. The cells were differentiated toward IPC with changing the culture medium and adding the small molecules such as nicotinic acid, epidermal growth factor, and exendin-4 during 3 wk period. The gene expression of PDX1, NGN3, Glut2, insulin was monitored by reveres transcription polymerase chain reaction method. The differentiated clusters were stained with Dithizone (DTZ) which confirms the presence of insulin granules. The insulin challenge test (low and high glucose concentration in Krebs-Ringer HEPES buffer) was also used to evaluate the functional properties of differentiated clusters.
RESULTS: WJ-MSCS were positive for mesenchymal surface markers (CD90, CD44, CD105), and negative for CD34 and CD133. The accumulation of lipid vacuoles and deposition of calcium mineral in cells were considered as adipogenic and osteogenic potential of WJ-MSCS. The cells also expressed the transcriptional factors such as Nanog and OCT4. During this three step differentiation, the WJ-MSCS morphology was gradually changed from spindle shaped cells in to epithelioid cells and eventually to three dimensional clusters. The clusters expressed PDX1, NGN3, Glut2, and insulin. The cells became bright red color when stained with DTZ and the insulin secretion was also confirmed. In glucose challenge test a significant increase in insulin secretion from 0.91 ± 0.04 μIu/mL (2.8 mmol/L glucose) to to 8.34 ± 0.45 μIu/mL (16.7 mmol/L glucose) was recorded (P < 0.05). The insulin secretion of undifferentiated WJ-MSCS was not changed in this challenge test.
CONCLUSION: WJ-MSCs have the ability to differentiate in to islet-like cells in vitro. However, this process needs further optimization in order to generate efficient and functional IPCs.
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Pettinato G, Wen X, Zhang N. Engineering Strategies for the Formation of Embryoid Bodies from Human Pluripotent Stem Cells. Stem Cells Dev 2015; 24:1595-609. [PMID: 25900308 DOI: 10.1089/scd.2014.0427] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Human pluripotent stem cells (hPSCs) are powerful tools for regenerative therapy and studying human developmental biology, attributing to their ability to differentiate into many functional cell types in the body. The main challenge in realizing hPSC potential is to guide their differentiation in a well-controlled manner. One way to control the cell differentiation process is to recapitulate during in vitro culture the key events in embryogenesis to obtain the three developmental germ layers from which all cell types arise. To achieve this goal, many techniques have been tested to obtain a cellular cluster, an embryoid body (EB), from both mouse and hPSCs. Generation of EBs that are homogeneous in size and shape would allow directed hPSC differentiation into desired cell types in a more synchronous manner and define the roles of cell-cell interaction and spatial organization in lineage specification in a setting similar to in vivo embryonic development. However, previous success in uniform EB formation from mouse PSCs cannot be extrapolated to hPSCs possibly due to the destabilization of adherens junctions on cell surfaces during the dissociation into single cells, making hPSCs extremely vulnerable to cell death. Recently, new advances have emerged to form uniform human embryoid bodies (hEBs) from dissociated single cells of hPSCs. In this review, the existing methods for hEB production from hPSCs and the results on the downstream differentiation of the hEBs are described with emphases on the efficiency, homogeneity, scalability, and reproducibility of the hEB formation process and the yield in terminal differentiation. New trends in hEB production and directed differentiation are discussed.
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Affiliation(s)
- Giuseppe Pettinato
- 1 Department of Biomedical Engineering, Virginia Commonwealth University , Richmond, Virginia.,2 Department of Chemical and Life Science Engineering, Virginia Commonwealth University , Richmond, Virginia
| | - Xuejun Wen
- 2 Department of Chemical and Life Science Engineering, Virginia Commonwealth University , Richmond, Virginia.,3 Shanghai East Hospital, The Institute for Biomedical Engineering and Nano Science, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Ning Zhang
- 1 Department of Biomedical Engineering, Virginia Commonwealth University , Richmond, Virginia
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18
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In vitro evaluation of different protocols for the induction of mesenchymal stem cells to insulin-producing cells. In Vitro Cell Dev Biol Anim 2015; 51:866-78. [DOI: 10.1007/s11626-015-9890-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 03/09/2015] [Indexed: 01/08/2023]
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Roost MS, van Iperen L, de Melo Bernardo A, Mummery CL, Carlotti F, de Koning EJ, Chuva de Sousa Lopes SM. Lymphangiogenesis and angiogenesis during human fetal pancreas development. Vasc Cell 2014; 6:22. [PMID: 25785186 PMCID: PMC4362646 DOI: 10.1186/2045-824x-6-22] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 09/26/2014] [Indexed: 12/26/2022] Open
Abstract
Background The complex endocrine and exocrine functionality of the human pancreas depends on an efficient fluid transport through the blood and the lymphatic vascular systems. The lymphatic vasculature has key roles in the physiology of the pancreas and in regulating the immune response, both important for developing successful transplantation and cell-replacement therapies to treat diabetes. However, little is known about how the lymphatic and blood systems develop in humans. Here, we investigated the establishment of these two vascular systems in human pancreas organogenesis in order to understand neovascularization in the context of emerging regenerative therapies. Methods We examined angiogenesis and lymphangiogenesis during human pancreas development between 9 and 22 weeks of gestation (W9-W22) by immunohistochemistry. Results As early as W9, the peri-pancreatic mesenchyme was populated by CD31-expressing blood vessels as well as LYVE1- and PDPN-expressing lymphatic vessels. The appearance of smooth muscle cell-coated blood vessels in the intra-pancreatic mesenchyme occurred only several weeks later and from W14.5 onwards the islets of Langerhans also became heavily irrigated by blood vessels. In contrast to blood vessels, LYVE1- and PDPN-expressing lymphatic vessels were restricted to the peri-pancreatic mesenchyme until later in development (W14.5-W17), and some of these invading lymphatic vessels contained smooth muscle cells at W17. Interestingly, between W11-W22, most large caliber lymphatic vessels were lined with a characteristic, discontinuous, collagen type IV-rich basement membrane. Whilst lymphatic vessels did not directly intrude the islets of Langerhans, three-dimensional reconstruction revealed that they were present in the vicinity of islets of Langerhans between W17-W22. Conclusion Our data suggest that the blood and lymphatic machinery in the human pancreas is in place to support endocrine function from W17-W22 onwards. Our study provides the first systematic assessment of the progression of lymphangiogenesis during human pancreatic development. Electronic supplementary material The online version of this article (doi:10.1186/2045-824X-6-22) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Matthias S Roost
- Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Liesbeth van Iperen
- Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Ana de Melo Bernardo
- Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Christine L Mummery
- Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Françoise Carlotti
- Department of Nephrology, Leiden University Medical Center, Albinusdreef 2, 2300 RC Leiden, The Netherlands
| | - Eelco Jp de Koning
- Department of Nephrology, Leiden University Medical Center, Albinusdreef 2, 2300 RC Leiden, The Netherlands ; Hubrecht Institute for Developmental Biology and Stem Cell Research, University Medical Center, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Susana M Chuva de Sousa Lopes
- Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands ; Department for Reproductive Medicine, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
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Mansouri A, Esmaeili F, Nejatpour A, Houshmand F, Shabani L, Ebrahimie E. Differentiation of P19 embryonal carcinoma stem cells into insulin-producing cells promoted by pancreas-conditioned medium. J Tissue Eng Regen Med 2014; 10:600-12. [DOI: 10.1002/term.1927] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 04/25/2014] [Accepted: 05/05/2014] [Indexed: 12/27/2022]
Affiliation(s)
- Akram Mansouri
- Department of Biology, Faculty of Basic Sciences; Shahrekord University; Iran
| | - Fariba Esmaeili
- Research Institute of Biotechnology; Shahrekord University; Iran
- Department of Biology, Faculty of Basic Sciences; University of Isfahan; Iran
| | | | - Fariba Houshmand
- Department of Physiology, Faculty of Medical Sciences; Shahrekord University of Medical Sciences; Iran
| | - Leila Shabani
- Department of Biology, Faculty of Basic Sciences; Shahrekord University; Iran
- Research Institute of Biotechnology; Shahrekord University; Iran
| | - Esmaeil Ebrahimie
- Institute of Biotechnology; Shiraz University; Shiraz Iran
- School of Molecular and Biomedical Science; The University of Adelaide; Adelaide Australia
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Qu H, Liu X, Ni Y, Jiang Y, Feng X, Xiao J, Guo Y, Kong D, Li A, Li X, Zhuang X, Wang Z, Wang Y, Chang Y, Chen S, Kong F, Zhang X, Zhao S, Sun Y, Xu D, Wang D, Zheng C. Laminin 411 acts as a potent inducer of umbilical cord mesenchymal stem cell differentiation into insulin-producing cells. J Transl Med 2014; 12:135. [PMID: 24885418 PMCID: PMC4040110 DOI: 10.1186/1479-5876-12-135] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 05/13/2014] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Diabetes mellitus (DM) is an incurable metabolic disease constituting a major threat to human health. Insulin-producing cells (IPCs) differentiated from mesenchymal stem cells (MSCs) hold great promise in the treatment of DM. The development of an efficient IPC induction system is a crucial step for the clinical application of IPCs for DM. Laminin 411 is a key component of the basement membrane and is involved in the regulation of cell differentiation; however, little is known about a role of laminin 411 in the regulation of IPC differentiation from human MSCs. METHODS MSCs were isolated from human umbilical cord (UC-MSCs) and expanded in an in vitro culture system. UC-MSCs were then cultured in the IPC induction and differentiation medium in the presence of laminin 411. Flow cytometry, Quantitative realtime PCR, immunofluorescence staining, ELISA, Western blotting and other techniques were applied to determine IPC generation, insulin expression and related mechanisms. To evaluate potential therapeutic efficacy of IPCs induced from UC-MSCs, a type-1 diabetes (T1DM) rat model was generated using streptozotocin. Blood glucose, insulin levels, and survival of rats were monitored periodically following intravenous injection of the tested cells. RESULTS Laminin 411 markedly induced the expression of the genes Foxa2 and Sox17, markers for pancreatic precursor cells, efficiently induced IPC differentiation from MSCs, and up-regulated insulin expression at both mRNA and protein levels. Furthermore, the expression of the genes known to govern insulin expression including Pdx1 and Ngn3 was markedly induced by laminin 411, which suggests that Pdx1 and Ngn3 signaling pathways are involved in laminin 411 induced-insulin expression machinery. More importantly, administration of laminin 411-induced IPCs rapidly and significantly down-regulated fasting blood glucose levels, significantly reduced the HbA1c concentration and markedly improved the symptoms and survival of T1DM rats. CONCLUSIONS Our results demonstrate that laminin 411 acts as a potent differentiation inducer of IPCs from UC-MSCs via the Pdx1 and Ngn3 signaling pathways. Moreover, transfusion of laminin 411 induced-IPCs more efficiently improves symptoms and survival of T1DM rats. These novel finding highlights a potential clinical application of laminin 411 induced-IPCs in the treatment of T1DM, which calls for further studies.
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Affiliation(s)
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- Departments of Hematology and Cellular Therapy, the Second Hospital of Shandong University, Jinan, Shandong, PR China.
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Generation of insulin-producing cells from human bone marrow-derived mesenchymal stem cells: comparison of three differentiation protocols. BIOMED RESEARCH INTERNATIONAL 2014; 2014:832736. [PMID: 24818157 PMCID: PMC4000976 DOI: 10.1155/2014/832736] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 03/03/2014] [Accepted: 03/12/2014] [Indexed: 12/17/2022]
Abstract
Introduction. Many protocols were utilized for directed differentiation of mesenchymal stem cells (MSCs) to form insulin-producing cells (IPCs). We compared the relative efficiency of three differentiation protocols. Methods. Human bone marrow-derived MSCs (HBM-MSCs) were obtained from three insulin-dependent type 2 diabetic patients. Differentiation into IPCs was carried out by three protocols: conophylline-based (one-step protocol), trichostatin-A-based (two-step protocol), and β-mercaptoethanol-based (three-step protocol). At the end of differentiation, cells were evaluated by immunolabeling for insulin production, expression of pancreatic endocrine genes, and release of insulin and c-peptide in response to increasing glucose concentrations. Results. By immunolabeling, the proportion of generated IPCs was modest (≃3%) in all the three protocols. All relevant pancreatic endocrine genes, insulin, glucagon, and somatostatin, were expressed. There was a stepwise increase in insulin and c-peptide release in response to glucose challenge, but the released amounts were low when compared with those of pancreatic islets. Conclusion. The yield of functional IPCs following directed differentiation of HBM-MSCs was modest and was comparable among the three tested protocols. Protocols for directed differentiation of MSCs need further optimization in order to be clinically meaningful. To this end, addition of an extracellular matrix and/or a suitable template should be attempted.
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SOX2 Is Regulated Differently from NANOG and OCT4 in Human Embryonic Stem Cells during Early Differentiation Initiated with Sodium Butyrate. Stem Cells Int 2014; 2014:298163. [PMID: 24707296 PMCID: PMC3951062 DOI: 10.1155/2014/298163] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 01/07/2014] [Indexed: 01/04/2023] Open
Abstract
Transcription factors NANOG, OCT4, and SOX2 regulate self-renewal and pluripotency in human embryonic stem (hES) cells; however, their expression profiles during early differentiation of hES cells are unclear. In this study, we used multiparameter flow cytometric assay to detect all three transcription factors (NANOG, OCT4, and SOX2) simultaneously at single cell level and monitored the changes in their expression during early differentiation towards endodermal lineage (induced by sodium butyrate). We observed at least four distinct populations of hES cells, characterized by specific expression patterns of NANOG, OCT4, and SOX2 and differentiation markers. Our results show that a single cell can express both differentiation and pluripotency markers at the same time, indicating a gradual mode of developmental transition in these cells. Notably, distinct regulation of SOX2 during early differentiation events was detected, highlighting the potential importance of this transcription factor for self-renewal of hES cells during differentiation.
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