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Collins DP, Hapke JH, Aravalli RN, Steer CJ. In vitro Differentiation of Human TERT-Transfected Multi-Lineage Progenitor Cells (MLPC) into Immortalized Hepatocyte-Like Cells. Hepat Med 2020; 12:79-92. [PMID: 32607015 PMCID: PMC7295760 DOI: 10.2147/hmer.s245916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 05/26/2020] [Indexed: 12/20/2022] Open
Abstract
Background Research directed towards drug development, metabolism, and liver functions often utilize primary hepatocytes (PH) for preliminary in vitro studies. Variability in the in vitro functionality of PH and the unsuitability of hepatocarcinoma cells for these studies have driven researchers to look to ESC, iPS, and other stem cell types using differentiation protocols to provide more reliable and available cells. This study describes the development of hepatocyte-like cells through the in vitro differentiation of human TERT-immortalized cord blood-derived multi-lineage progenitor cells (MLPC). The E12 clonal cell line derived from polyclonal TERT-transfected cells was used throughout the study. Methods E12 MLPC were subjected to a three-step differentiation protocol using alternating combinations of growth factors, cytokines, and maturational factors. Cells at various stages of differentiation were analyzed for consistency with PH by morphology, immunohistochemistry, urea production, and gene expression. Results E12 MLPC were shown to significantly change morphology with each stage of differentiation. Coincidental with the morphological changes in the cells, immunohistochemistry data documented the differentiation to committed endoderm by the expression of SOX-17 and GATA-4; the progression to committed hepatocyte-like cells by the expression of a large number of markers including α-fetoprotein and albumin; and the final differentiation by the expression of nuclear and cytoplasmic HNF4. Fully differentiated cells demonstrated gene expression, urea production, and immunohistochemistry consistent with PH. A methodology and medium formulation to continuously expand the E12-derived hepatocyte-like cells is described. Conclusion The availability of immortalized hepatocyte-like cell lines could provide a consistent tool for the study of hepatic diseases, drug discovery, and the development of cellular therapies for liver disorders. Utilization of these techniques could provide a basis for the development of bridge therapies for liver failure patients awaiting transplant.
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Affiliation(s)
| | - Joel H Hapke
- Cytomedical Design Group, LLC, Saint Paul, MN 55127, USA
| | - Rajagopal N Aravalli
- Department of Electrical and Computer Engineering, College of Science and Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Clifford J Steer
- Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA.,Department of Genetics, Cell Biology and Development, University of Minnesota Medical School, Minneapolis, MN 55455, USA
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2
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Fu YY, Hu BH, Chen KL, Li HX. Chemerin induces lipolysis through ERK1/2 pathway in intramuscular mature adipocytes of dairy bull calves. J Cell Biochem 2019; 120:1122-1132. [PMID: 30256444 DOI: 10.1002/jcb.27506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 07/18/2018] [Indexed: 01/24/2023]
Abstract
The adipokine Chemerin has been reported to regulate differentiation and metabolism of adipocytes, but the mechanism underlying lipolysis is still largely unknown. The purpose of this study was to explore whether ERK1/2 pathway is involved in regulating Chemerin during bovine intramuscular mature adipocyte lipolysis. Intramuscular mature adipocytes of dairy bull calves were cultured in vitro and were treated with Chemerin or U0126, which is an inhibitor of ERK1/2 pathway. The results showed that TG content in cells was significantly decreased, glycerol and free fatty acid were significantly increased in cell culture media, and the expression of phosphorylated ERK1/2 in cells was increased in Chemerin-treated group, suggested that ERK1/2 pathway was involved in regulation of lipolysis by Chemerin. In addition, the expression of lipolytic-related critical factors ATGL, HSL, LPL, PPARα, UCP3, and CPT1 were upregulated, but the expression of adipogenic key factors, including PPARγ and C/EBPα were downregulated by Chemerin. Interestingly, all the effects of Chemerin on genes expression in intramuscular mature adipocytes or fat tissue were inhibited by U0126, showed that the function of Chemerin to promote adipose decomposition will be significantly weakened if the ERK1/2 pathway is suppressed, and confirmed that ERK1/2 pathway is involved in mediate Chemerin-enhanced lipolysis. In conclusion, the study demonstrated that Chemerin induce intramuscular mature adipocytes lipolysis through activation of the ERK1/2 pathway. Our research at least provide partial mechanisms of Chemerin on lipolysis and deposition of intramuscular fat tissue of dairy bull calves.
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Affiliation(s)
- Yuan-Yuan Fu
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Bian-Hong Hu
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kun-Lin Chen
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Hui-Xia Li
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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3
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Seidkhani-Nahal A, Allameh A, Soleimani M. Antioxidant and reactive oxygen species scavenging properties of cellular albumin in HepG2 cells is mediated by the glutathione redox system. Biotechnol Appl Biochem 2018; 66:163-171. [PMID: 30402957 DOI: 10.1002/bab.1708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 10/23/2018] [Accepted: 10/30/2018] [Indexed: 11/11/2022]
Abstract
This study was carried out to examine the role of intracellular albumin in the modulation of oxidative damage induced by glutathione modifiers in HepG2 cells. Also, the relationship of albumin synthesis with oxidative stress factors including antioxidants was studied. HepG2 cell culture was supplemented with glutathione modifiers; L-Buthionine-sulfoximine (BSO; 0.1 and 1.0 mM) or N-acetyl cysteine (NAC; 1 and 10 mM) and the cell viability and changes in reduced glutathione (GSH), oxidized glutathione (GSSG), reactive oxygen species (ROS), catalase, and superoxide dismutase were measured. Besides, albumin expression at protein and mRNA levels was determined in cells pretreated with BSO or NAC. Kinetic studies showed that albumin expression in HepG2 cells is correlated with GSH and GSSG levels. Changes in albumin expression at protein and mRNA levels reached their maximum (19% and 55%, respectively) in the cells 6 H after NAC treatments. A substantial decrease in intracellular albumin due to BSO (27%) was associated with a significant increase in the generation of cellular ROS (17%). In contrast, increased albumin synthesis (intracellular and secretory) was associated with inhibition in cellular ROS. Overall data may suggest that albumin expression in coordination with the glutathione redox system is part of the antioxidant defense mechanism in liver cells.
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Affiliation(s)
- Ali Seidkhani-Nahal
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abdolamir Allameh
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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4
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Hu C, Zhao L, Peng C, Li L. Regulation of the mitochondrial reactive oxygen species: Strategies to control mesenchymal stem cell fates ex vivo and in vivo. J Cell Mol Med 2018; 22:5196-5207. [PMID: 30160351 PMCID: PMC6201215 DOI: 10.1111/jcmm.13835] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/11/2018] [Indexed: 12/18/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are broadly used in cell‐based regenerative medicine because of their self‐renewal and multilineage potencies in vitro and in vivo. To ensure sufficient amounts of MSCs for therapeutic purposes, cells are generally cultured in vitro for long‐term expansion or specific terminal differentiation until cell transplantation. Although physiologically up‐regulated reactive oxygen species (ROS) production is essential for maintenance of stem cell activities, abnormally high levels of ROS can harm MSCs both in vitro and in vivo. Overall, additional elucidation of the mechanisms by which physiological and pathological ROS are generated is necessary to better direct MSC fates and improve their therapeutic effects by controlling external ROS levels. In this review, we focus on the currently revealed ROS generation mechanisms and the regulatory routes for controlling their rates of proliferation, survival, senescence, apoptosis, and differentiation. A promising strategy in future regenerative medicine involves regulating ROS generation via various means to augment the therapeutic efficacy of MSCs, thus improving the prognosis of patients with terminal diseases.
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Affiliation(s)
- Chenxia Hu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, School of Medicine, First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lingfei Zhao
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Zhejiang Province, Institute of Nephrology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Conggao Peng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, School of Medicine, First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lanjuan Li
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, School of Medicine, First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang, China
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5
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Martacic J, Filipovic MK, Borozan S, Cvetkovic Z, Popovic T, Arsic A, Takic M, Vucic V, Glibetic M. N-acetyl-L-cysteine protects dental tissue stem cells against oxidative stress in vitro. Clin Oral Investig 2018; 22:2897-2903. [PMID: 29450735 DOI: 10.1007/s00784-018-2377-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 02/01/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVES The aim of our study was to investigate whether N-acetyl-L-cysteine (NAC) could protect stem cells from exfoliated deciduous teeth (SHED) against oxidative damage, during in vitro cultivation, to preserve regenerative potential of these cells. Accordingly, we examined the potential of cell culture supplementation with NAC in prevention of lipid peroxidation, unfavorable changes of total lipids fatty acid composition, and the effects on the activity of antioxidant enzymes. MATERIAL AND METHODS We analyzed the extent of oxidative damage in SHED after 48 h treatment with different NAC concentrations. Cellular lipid peroxidation was determined upon reaction with thiobarbituric acid. All enzyme activities were measured spectrophotometrically, based on published methods. Fatty acid methyl esters were analyzed by gas-liquid chromatography. RESULTS Concentration of 0.1 mM NAC showed the most profound effects on SHED, significantly decreasing levels of lipid peroxidation in comparison to control. This dose also diminished the activities of antioxidant enzymes. Furthermore, NAC treatment significantly changed fatty acid composition of cells, reducing levels of oleic acid and monounsaturated fatty acids and increasing linoleic acid, n-6, and total polyunsaturated fatty acid (PUFA) proportions. CONCLUSION Low dose of NAC significantly decreased lipid peroxidation and altered fatty acid composition towards increasing PUFA. The reduced oxidative damage of cellular lipids could be strongly related to improved SHED survival in vitro. CLINICAL RELEVANCE Low doses of antioxidants, applied during stem cells culturing and maintenance, could improve cellular characteristics in vitro. This is prerequisite for successful use of stem cells in various clinical applications.
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Affiliation(s)
- Jasmina Martacic
- Institute for Medical Research, University of Belgrade, Dr Subotica 4, Belgrade, 11000, Serbia
| | - Milica Kovacevic Filipovic
- Faculty of Veterinary Medicine, University of Belgrade, Bulevar oslobodjenja 18, Belgrade, 11000, Serbia
| | - Suncica Borozan
- Faculty of Veterinary Medicine, University of Belgrade, Bulevar oslobodjenja 18, Belgrade, 11000, Serbia
| | - Zorica Cvetkovic
- Department of Hematology, Clinical Hospital Center Zemun, Vukova 9, Belgrade, 11080, Serbia.,Faculty of Medicine, University of Belgrade, Dr Subotića 8, Belgrade, 11000, Serbia
| | - Tamara Popovic
- Institute for Medical Research, University of Belgrade, Dr Subotica 4, Belgrade, 11000, Serbia
| | - Aleksandra Arsic
- Institute for Medical Research, University of Belgrade, Dr Subotica 4, Belgrade, 11000, Serbia
| | - Marija Takic
- Institute for Medical Research, University of Belgrade, Dr Subotica 4, Belgrade, 11000, Serbia
| | - Vesna Vucic
- Institute for Medical Research, University of Belgrade, Dr Subotica 4, Belgrade, 11000, Serbia.
| | - Maria Glibetic
- Institute for Medical Research, University of Belgrade, Dr Subotica 4, Belgrade, 11000, Serbia
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Jaramillo M, Yeh H, Yarmush ML, Uygun BE. Decellularized human liver extracellular matrix (hDLM)-mediated hepatic differentiation of human induced pluripotent stem cells (hIPSCs). J Tissue Eng Regen Med 2018; 12:e1962-e1973. [PMID: 29222839 DOI: 10.1002/term.2627] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/31/2017] [Accepted: 11/30/2017] [Indexed: 12/30/2022]
Abstract
Liver tissue engineering has emerged as a promising approach in organ transplantation but has been hampered by the lack of a reliable and readily available cell source. Human induced pluripotent stem cells hiPSCs have been highlighted as a desirable source, due to their differentiation potential, ability to self-renew, and the possibility of making patient-specific cells. We developed a decellularization protocol that efficiently removes cellular material while retaining extracellular matrix components. Subsequently, hiPSCs were differentiated on decellularized human liver extracellular matrix (hDLM) scaffolds using an established hepatic differentiation protocol. We demonstrate that using hDLM leads to upregulation markers of hepatic functions when compared with standard differentiation conditions. In addition, expression of a number of hepatic transcription and nuclear factors were found to be within levels comparable with those of primary human adult hepatocytes. Analysis of progression of differentiation on hDLM demonstrated that hepatic developmental marker expression was consistent with hepatic development. The hDLM-derived cells exhibited key hepatic characteristics that were comparable with those observed in primary neonatal human hepatocytes. We investigated the optimal timing of the introduction of hDLM into the differentiation protocol and found that the best results are obtained when cells are plated on hDLM since the earliest stages and accompanied by a progressive loss of sensitivity to substrate composition at later stages. The significance of this work is that it allows for the development of differentiation protocols that take into account signals from extracellular matrix, closely recapitulating of the in vivo micro-environment and resulting in cells that are phenotypically closer to mature hepatocytes.
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Affiliation(s)
- Maria Jaramillo
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Shriners Hospitals for Children, Boston, MA, USA.,Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Heidi Yeh
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Martin L Yarmush
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Shriners Hospitals for Children, Boston, MA, USA.,Department of Surgery, Massachusetts General Hospital, Boston, MA, USA.,Department of Biomedical Engineering, Rutgers University, Piscataway, NJ, USA
| | - Basak E Uygun
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Shriners Hospitals for Children, Boston, MA, USA.,Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
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7
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Chatgilialoglu A, Rossi M, Alviano F, Poggi P, Zannini C, Marchionni C, Ricci F, Tazzari PL, Taglioli V, Calder PC, Bonsi L. Restored in vivo-like membrane lipidomics positively influence in vitro features of cultured mesenchymal stromal/stem cells derived from human placenta. Stem Cell Res Ther 2017; 8:31. [PMID: 28173875 PMCID: PMC5297199 DOI: 10.1186/s13287-017-0487-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 01/12/2017] [Accepted: 01/21/2017] [Indexed: 12/12/2022] Open
Abstract
Background The study of lipid metabolism in stem cell physiology has recently raised great interest. The role of lipids goes beyond the mere structural involvement in assembling extra- and intra-cellular compartments. Nevertheless, we are still far from understanding the impact of membrane lipidomics in stemness maintenance and differentiation patterns. In the last years, it has been reported how in vitro cell culturing can modify membrane lipidomics. The aim of the present work was to study the membrane fatty acid profile of mesenchymal stromal cells (MSCs) derived from human fetal membranes (hFM-MSCs) and to correlate this to specific biological properties by using chemically defined tailored lipid supplements (Refeed®). Methods Freshly isolated hFM-MSCs were characterized for their membrane fatty acid composition. hFM-MSCs were cultivated in vitro following a classical protocol and their membrane fatty acid profile at different passages was compared to the profile in vivo. A tailored Refeed® lipid supplement was developed with the aim of reducing the differences created by the in vitro cultivation and was tested on cultured hFM-MSCs. Cell morphology, viability, proliferation, angiogenic differentiation, and immunomodulatory properties after in vitro exposure to the tailored Refeed® lipid supplement were investigated. Results A significant modification of hFM-MSC membrane fatty acid composition occurred during in vitro culture. Using a tailored lipid supplement, the fatty acid composition of cultured cells remained more similar to their in vivo counterparts, being characterized by a higher polyunsaturated and omega-6 fatty acid content. These changes in membrane composition had no effect on cell morphology and viability, but were linked with increased cell proliferation rate, angiogenic differentiation, and immunomodulatory properties. In particular, Refeed®-supplemented hFM-MSCs showed greater ability to express fully functional cell membrane molecules. Conclusions Culturing hFM-MSCs alters their fatty acid composition. A tailored lipid supplement is able to improve in vitro hFM-MSC functional properties by recreating a membrane environment more similar to the physiological counterpart. This approach should be considered in cell therapy applications in order to maintain a higher cell quality during in vitro passaging and to influence the outcome of cell-based therapeutic approaches when cells are administered to patients.
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Affiliation(s)
| | - Martina Rossi
- Department of Experimental, Diagnostic and Specialty Medicine, Unit of Histology, Embryology and Applied Biology, University of Bologna, Via Belmeloro 8, 40126, Bologna, Italy
| | - Francesco Alviano
- Department of Experimental, Diagnostic and Specialty Medicine, Unit of Histology, Embryology and Applied Biology, University of Bologna, Via Belmeloro 8, 40126, Bologna, Italy.
| | - Paola Poggi
- Remembrane Srl, Imola, Italy.,Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology, University of Ferrara, Ferrara, Italy
| | - Chiara Zannini
- Department of Experimental, Diagnostic and Specialty Medicine, Unit of Histology, Embryology and Applied Biology, University of Bologna, Via Belmeloro 8, 40126, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine, Unit of Nephrology, Dialysis and Renal Transplant, St, Orsola-Malpighi University Hospital, Via Massarenti 9, 40138, Bologna, Italy
| | - Cosetta Marchionni
- Department of Experimental, Diagnostic and Specialty Medicine, Unit of Histology, Embryology and Applied Biology, University of Bologna, Via Belmeloro 8, 40126, Bologna, Italy
| | - Francesca Ricci
- Service of Immunohematology and Transfusion Medicine, St. Orsola-Malpighi University Hospital, Via Massarenti 9, 40138, Bologna, Italy
| | - Pier Luigi Tazzari
- Service of Immunohematology and Transfusion Medicine, St. Orsola-Malpighi University Hospital, Via Massarenti 9, 40138, Bologna, Italy
| | - Valentina Taglioli
- Laboratory of Molecular Biology, Institute of Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, St. Orsola - Malpighi University Hospital, University of Bologna, Via Massarenti 9, 40138, Bologna, Italy.,National Institute of Biostructures and Biosystems at Ettore Sansavini Health Science Foundation ONLUS - Lab SWITH, Corso Garibaldi 11, 48022, Lugo (RA), Italy
| | - Philip C Calder
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
| | - Laura Bonsi
- Department of Experimental, Diagnostic and Specialty Medicine, Unit of Histology, Embryology and Applied Biology, University of Bologna, Via Belmeloro 8, 40126, Bologna, Italy
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8
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Energy Metabolism Plays a Critical Role in Stem Cell Maintenance and Differentiation. Int J Mol Sci 2016; 17:253. [PMID: 26901195 PMCID: PMC4783982 DOI: 10.3390/ijms17020253] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 01/29/2016] [Accepted: 02/15/2016] [Indexed: 12/19/2022] Open
Abstract
Various stem cells gradually turned to be critical players in tissue engineering and regenerative medicine therapies. Current evidence has demonstrated that in addition to growth factors and the extracellular matrix, multiple metabolic pathways definitively provide important signals for stem cell self-renewal and differentiation. In this review, we mainly focus on a detailed overview of stem cell metabolism in vitro. In stem cell metabolic biology, the dynamic balance of each type of stem cell can vary according to the properties of each cell type, and they share some common points. Clearly defining the metabolic flux alterations in stem cells may help to shed light on stemness features and differentiation pathways that control the fate of stem cells.
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