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Deng F, Morales-Sosa P, Bernal-Rivera A, Wang Y, Tsuchiya D, Javier JE, Rohner N, Zhao C, Camacho J. Establishing Primary and Stable Cell Lines from Frozen Wing Biopsies for Cellular, Physiological, and Genetic Studies in Bats. Curr Protoc 2024; 4:e1123. [PMID: 39228233 PMCID: PMC11378949 DOI: 10.1002/cpz1.1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
Bats stand out among mammalian species for their exceptional traits, including the capacity to navigate through flight and echolocation, conserve energy through torpor/hibernation, harbor a multitude of viruses, exhibit resistance to disease, survive harsh environmental conditions, and demonstrate exceptional longevity compared to other mammals of similar size. In vivo studies of bats are challenging for several reasons, such as difficulty in locating and capturing them in their natural environments, limited accessibility, low sample size, environmental variation, long lifespans, slow reproductive rates, zoonotic disease risks, species protection, and ethical concerns. Thus, establishing alternative laboratory models is crucial for investigating the diverse physiological adaptations observed in bats. Obtaining quality cells from tissues is a critical first step for successful primary cell derivation. However, it is often impractical to collect fresh tissue and process the samples immediately for cell culture due to the resources required for isolating and expanding cells. As a result, frozen tissue is typically the starting resource for bat primary cell derivation, but cells in frozen tissue are usually damaged and have low integrity and viability. Isolating primary cells from frozen tissues thus poses a significant challenge. Herein, we present a successfully developed protocol for isolating primary dermal fibroblasts from frozen bat wing biopsies. This protocol marks a significant milestone, as this is the first protocol specifically focused on fibroblast isolation from bat frozen tissue. We also describe methods for primary cell characterization, genetic manipulation of primary cells through lentivirus transduction, and the development of stable cell lines. © 2024 Wiley Periodicals LLC. Basic Protocol 1: Bat wing biopsy collection and preservation Support Protocol 1: Blood collection from bat venipuncture Basic Protocol 2: Isolation of primary fibroblasts from adult bat frozen wing biopsy Support Protocol 2: Primary fibroblast culture and subculture Support Protocol 3: Determination of growth curve and doubling time Support Protocol 4: Cell banking and thawing of primary fibroblasts Basic Protocol 3: Lentiviral transduction of bat primary fibroblasts Basic Protocol 4: Bat stable fibroblast cell line development Support Protocol 5: Bat fibroblast validation by immunofluorescence staining Basic Protocol 5: Chromosome counting.
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Affiliation(s)
- Fengyan Deng
- Stowers Institute for Medical Research, Kansas City, Missouri
| | | | | | - Yan Wang
- Stowers Institute for Medical Research, Kansas City, Missouri
| | - Dai Tsuchiya
- Stowers Institute for Medical Research, Kansas City, Missouri
| | | | - Nicolas Rohner
- Stowers Institute for Medical Research, Kansas City, Missouri
- Department of Cell Biology & Physiology, University of Kansas Medical Center, Kansas City, Missouri
| | - Chongbei Zhao
- Stowers Institute for Medical Research, Kansas City, Missouri
| | - Jasmin Camacho
- Stowers Institute for Medical Research, Kansas City, Missouri
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2
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Gurwitz D, Steeg R. Enriching iPSC research diversity: Harnessing human biobank collections for improved ethnic representation. Drug Dev Res 2024; 85:e22227. [PMID: 38943497 DOI: 10.1002/ddr.22227] [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: 04/21/2024] [Revised: 06/09/2024] [Accepted: 06/14/2024] [Indexed: 07/01/2024]
Abstract
Biobanks of human biosamples and cell lines are indispensable for biomedical research on human health and disease and for drug development projects. Many human cell line biobanks worldwide hold collections of lymphoblastoid cell lines (LCLs), representing thousands of affected and control donors from diverse ethnic/ancestry groups. In recent years, induced human pluripotent stem cells (iPSCs) and differentiated human cells derived from these iPSCs have become indispensable for applied biomedical research. Establishing iPSCs remains a laborious and costly step towards generating differentiated human cells. To address this research need, several non-profit and commercial biobanks have established iPSC collections for distribution to researchers, thereby serving as a resource for generating differentiated human cells. The most common starting materials for generation of iPSCs are a skin biopsy for harvesting fibroblasts, or a blood sample for collection of peripheral blood mononuclear cells. However untapped resources include the large established collections of biobanked human LCLs which can be reprogrammed to iPSCs using a variety of published protocols including the use of non-integrating episomal vectors. Many biobanks curate LCLs from diverse ethnic/ancestry populations, an aspect largely absent in most established iPSC biobanks which tend to primarily reflect populations from developed countries. Here, we call upon researchers across the breadth of iPSC research to tap the unique resource of existing and diverse human LCL collections for establishing biobanked iPSC panels that better represent the varied human ethnic (and hence genomic) diversity, thereby benefiting precision medicine and drug development research on a global scale.
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Affiliation(s)
- David Gurwitz
- Department of Human Molecular Genetics and Biochemistry, Faculty of Medical and Health Sciences, Tel-Aviv University, Tel-Aviv, Israel
- Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
| | - Rachel Steeg
- European Bank for Induced Pluripotent Stem Cells, Fraunhofer UK Research Ltd, Glasgow, UK
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3
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Clancy CE, Santana LF. Advances in induced pluripotent stem cell-derived cardiac myocytes: technological breakthroughs, key discoveries and new applications. J Physiol 2024; 602:3871-3892. [PMID: 39032073 PMCID: PMC11326976 DOI: 10.1113/jp282562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 07/02/2024] [Indexed: 07/22/2024] Open
Abstract
A transformation is underway in precision and patient-specific medicine. Rapid progress has been enabled by multiple new technologies including induced pluripotent stem cell-derived cardiac myocytes (iPSC-CMs). Here, we delve into these advancements and their future promise, focusing on the efficiency of reprogramming techniques, the fidelity of differentiation into the cardiac lineage, the functional characterization of the resulting cardiac myocytes, and the many applications of in silico models to understand general and patient-specific mechanisms controlling excitation-contraction coupling in health and disease. Furthermore, we explore the current and potential applications of iPSC-CMs in both research and clinical settings, underscoring the far-reaching implications of this rapidly evolving field.
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Affiliation(s)
- Colleen E Clancy
- Department of Physiology & Membrane Biology, School of Medicine, University of California Davis, Davis, CA, USA
- Center for Precision Medicine and Data Sciences, University of California Davis, School of Medicine, Sacramento, CA, USA
| | - L Fernando Santana
- Department of Physiology & Membrane Biology, School of Medicine, University of California Davis, Davis, CA, USA
- Center for Precision Medicine and Data Sciences, University of California Davis, School of Medicine, Sacramento, CA, USA
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4
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Taherian M, Bayati P, Mojtabavi N. Stem cell-based therapy for fibrotic diseases: mechanisms and pathways. Stem Cell Res Ther 2024; 15:170. [PMID: 38886859 PMCID: PMC11184790 DOI: 10.1186/s13287-024-03782-5] [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: 01/29/2024] [Accepted: 06/04/2024] [Indexed: 06/20/2024] Open
Abstract
Fibrosis is a pathological process, that could result in permanent scarring and impairment of the physiological function of the affected organ; this condition which is categorized under the term organ failure could affect various organs in different situations. The involvement of the major organs, such as the lungs, liver, kidney, heart, and skin, is associated with a high rate of morbidity and mortality across the world. Fibrotic disorders encompass a broad range of complications and could be traced to various illnesses and impairments; these could range from simple skin scars with beauty issues to severe rheumatologic or inflammatory disorders such as systemic sclerosis as well as idiopathic pulmonary fibrosis. Besides, the overactivation of immune responses during any inflammatory condition causing tissue damage could contribute to the pathogenic fibrotic events accompanying the healing response; for instance, the inflammation resulting from tissue engraftment could cause the formation of fibrotic scars in the grafted tissue, even in cases where the immune system deals with hard to clear infections, fibrotic scars could follow and cause severe adverse effects. A good example of such a complication is post-Covid19 lung fibrosis which could impair the life of the affected individuals with extensive lung involvement. However, effective therapies that halt or slow down the progression of fibrosis are missing in the current clinical settings. Considering the immunomodulatory and regenerative potential of distinct stem cell types, their application as an anti-fibrotic agent, capable of attenuating tissue fibrosis has been investigated by many researchers. Although the majority of the studies addressing the anti-fibrotic effects of stem cells indicated their potent capabilities, the underlying mechanisms, and pathways by which these cells could impact fibrotic processes remain poorly understood. Here, we first, review the properties of various stem cell types utilized so far as anti-fibrotic treatments and discuss the challenges and limitations associated with their applications in clinical settings; then, we will summarize the general and organ-specific mechanisms and pathways contributing to tissue fibrosis; finally, we will describe the mechanisms and pathways considered to be employed by distinct stem cell types for exerting anti-fibrotic events.
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Affiliation(s)
- Marjan Taherian
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Paria Bayati
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Nazanin Mojtabavi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
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5
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Pignatti E, Maccaferri M, Pisciotta A, Carnevale G, Salvarani C. A comprehensive review on the role of mesenchymal stromal/stem cells in the management of rheumatoid arthritis. Expert Rev Clin Immunol 2024; 20:463-484. [PMID: 38163928 DOI: 10.1080/1744666x.2023.2299729] [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: 09/18/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
INTRODUCTION Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease with systemic manifestations. Although the success of immune modulatory drug therapy is considerable, about 40% of patients do not respond to treatment. Mesenchymal stromal/stem cells (MSCs) have been demonstrated to have therapeutic potential for inflammatory diseases. AREAS COVERED This review provides an update on RA disease and on pre-clinical and clinical studies using MSCs from bone marrow, umbilical cord, adipose tissue, and dental pulp, to regulate the immune response. Moreover, the clinical use, safety, limitations, and future perspective of MSCs in RA are discussed. Using the PubMed database and ClincalTrials.gov, peer-reviewed full-text papers, abstracts and clinical trials were identified from 1985 through to April 2023. EXPERT OPINION MSCs demonstrated a satisfactory safety profile and potential for clinical efficacy. However, it is mandatory to deepen the investigations on how MSCs affect the proinflammatory deregulated RA patients' cells. MSCs are potentially good candidates for severe RA patients not responding to conventional therapies but a long-term follow-up after stem cells treatment and standardized protocols are needed. Future research should focus on well-designed multicenter randomized clinical trials with adequate sample sizes and properly selected patients satisfying RA criteria for a valid efficacy evaluation.
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Affiliation(s)
- Elisa Pignatti
- Department of Surgery, Medicine Dentistry and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Monia Maccaferri
- Department of Surgery, Medicine Dentistry and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandra Pisciotta
- Department of Surgery, Medicine Dentistry and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Gianluca Carnevale
- Department of Surgery, Medicine Dentistry and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Carlo Salvarani
- Department of Surgery, Medicine Dentistry and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
- Rheumatology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
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Deng F, Morales-Sosa P, Bernal-Rivera A, Wang Y, Tsuchiya D, Javier JE, Rohner N, Zhao C, Camacho J. Establishing Primary and Stable Cell Lines from Frozen Wing Biopsies for Cellular, Physiological, and Genetic Studies in Bats. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.22.586286. [PMID: 38585913 PMCID: PMC10996558 DOI: 10.1101/2024.03.22.586286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Bats stand out among mammalian species for their exceptional traits, including the capacity to navigate through flight and echolocation, conserve energy through torpor/hibernation, harbor a multitude of viruses, exhibit resistance to disease, survive harsh environmental conditions, and demonstrate exceptional longevity compared to other mammals of similar size. In vivo studies of bats can be challenging for several reasons such as ability to locate and capture them in their natural environments, limited accessibility, low sample size, environmental variation, long lifespans, slow reproductive rates, zoonotic disease risks, species protection, and ethical concerns. Thus, establishing alternative laboratory models is crucial for investigating the diverse physiological adaptations observed in bats. Obtaining quality cells from tissues is a critical first step for successful primary cell derivation. However, it is often impractical to collect fresh tissue and process the samples immediately for cell culture due to the resources required for isolating and expanding cells. As a result, frozen tissue is typically the starting resource for bat primary cell derivation. Yet, cells in frozen tissue are usually damaged and represent low integrity and viability. As a result, isolating primary cells from frozen tissues poses a significant challenge. Herein, we present a successfully developed protocol for isolating primary dermal fibroblasts from frozen bat wing biopsies. This protocol marks a significant milestone, as this the first protocol specially focused on fibroblasts isolation from bat frozen tissue. We also describe methods for primary cell characterization, genetic manipulation of primary cells through lentivirus transduction, and the development of stable cell lines. Basic Protocol 1: Bat wing biopsy collection and preservation Support Protocol 1: Blood collection from bat- venipuncture Basic Protocol 2: Isolation of primary fibroblasts from adult bat frozen wing biopsy Support Protocol 2: Maintenance of primary fibroblasts Support Protocol 3: Cell banking and thawing of primary fibroblasts Support Protocol 4: Growth curve and doubling time Support Protocol 5: Lentiviral transduction of bat primary fibroblasts Basic Protocol 3: Bat stable fibroblasts cell lines development Support Protocol 6: Bat fibroblasts validation by immunofluorescence staining Support Protocol 7: Chromosome counting.
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Affiliation(s)
- Fengyan Deng
- Stowers Institute for Medical Research, Kansas City, MO, USA, 64110
| | | | | | - Yan Wang
- Stowers Institute for Medical Research, Kansas City, MO, USA, 64110
| | - Dai Tsuchiya
- Stowers Institute for Medical Research, Kansas City, MO, USA, 64110
| | | | - Nicolas Rohner
- Stowers Institute for Medical Research, Kansas City, MO, USA, 64110
- Department of Cell Biology & Physiology, University of Kansas Medical Center, Kansas City, KS, USA, 66103
| | - Chongbei Zhao
- Stowers Institute for Medical Research, Kansas City, MO, USA, 64110
| | - Jasmin Camacho
- Stowers Institute for Medical Research, Kansas City, MO, USA, 64110
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7
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Moauro A, Hickey SL, Halbisen MA, Parenti A, Ralston A. OCT4 is expressed in extraembryonic endoderm stem (XEN) cell progenitors during somatic cell reprogramming. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.22.576724. [PMID: 38328220 PMCID: PMC10849553 DOI: 10.1101/2024.01.22.576724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
During development, progenitors of embryonic stem (ES) and extraembryonic endoderm stem (XEN) cells are concomitantly specified within the inner cell mass (ICM) of the mouse blastocyst. Similarly, XEN cells are induced (iXEN cells) alongside induced pluripotent stem (iPS) cells following overexpression of Oct4, Sox2, Klf4 and Myc (OSKM) during somatic cell reprogramming. It is unclear how or why this cocktail produces both stem cell types, but OCT4 has been associated with non-pluripotent outcomes. In this report, we show that, during OSKM reprogramming, many individual Oct4-GFP-expressing cells are fated to become iXEN cells. Interestingly, SKM alone was also sufficient to induce iXEN cell formation, likely via activation of endogenous Oct4. These observations indicate that iXEN cell formation is not strictly an artifact of Oct4 overexpression. Moreover, our results suggest that a pathway to XEN may be an integral feature of establishing pluripotency during reprogramming, as in early embryo development.
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Affiliation(s)
- Alexandra Moauro
- Molecular, Cellular and Integrative Physiology Ph.D. Program, Michigan State University, East Lansing, MI, 48824
- D.O.-Ph.D. Program, Michigan State University, East Lansing, MI, 48824
| | - Stephanie L. Hickey
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824
| | - Michael A. Halbisen
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824
| | - Anthony Parenti
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824
| | - Amy Ralston
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824
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Park S, Lee J, Ahn KS, Shim HW, Yoon J, Hyun J, Lee JH, Jang S, Yoo KH, Jang Y, Kim T, Kim HK, Lee MR, Jang J, Shim H, Kim H. Cyclic Stretch Promotes Cellular Reprogramming Process through Cytoskeletal-Nuclear Mechano-Coupling and Epigenetic Modification. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303395. [PMID: 37727069 PMCID: PMC10646259 DOI: 10.1002/advs.202303395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/27/2023] [Indexed: 09/21/2023]
Abstract
Advancing the technologies for cellular reprogramming with high efficiency has significant impact on regenerative therapy, disease modeling, and drug discovery. Biophysical cues can tune the cell fate, yet the precise role of external physical forces during reprogramming remains elusive. Here the authors show that temporal cyclic-stretching of fibroblasts significantly enhances the efficiency of induced pluripotent stem cell (iPSC) production. Generated iPSCs are proven to express pluripotency markers and exhibit in vivo functionality. Bulk RNA-sequencing reveales that cyclic-stretching enhances biological characteristics required for pluripotency acquisition, including increased cell division and mesenchymal-epithelial transition. Of note, cyclic-stretching activates key mechanosensitive molecules (integrins, perinuclear actins, nesprin-2, and YAP), across the cytoskeletal-to-nuclear space. Furthermore, stretch-mediated cytoskeletal-nuclear mechano-coupling leads to altered epigenetic modifications, mainly downregulation in H3K9 methylation, and its global gene occupancy change, as revealed by genome-wide ChIP-sequencing and pharmacological inhibition tests. Single cell RNA-sequencing further identifies subcluster of mechano-responsive iPSCs and key epigenetic modifier in stretched cells. Collectively, cyclic-stretching activates iPSC reprogramming through mechanotransduction process and epigenetic changes accompanied by altered occupancy of mechanosensitive genes. This study highlights the strong link between external physical forces with subsequent mechanotransduction process and the epigenetic changes with expression of related genes in cellular reprogramming, holding substantial implications in the field of cell biology, tissue engineering, and regenerative medicine.
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Ahmadi SF, Mansour RN, Hassannia H, Enderami SE, Abediankenari S, Hosseini-Khah Z. Generation of glucose sensitive insulin-secreting cells from human induced pluripotent stem cells on optimized polyethersulfone hybrid nanofibrous scaffold. Artif Organs 2023; 47:502-511. [PMID: 36287200 DOI: 10.1111/aor.14431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/19/2022] [Accepted: 10/19/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND In the realm of diabetes treatment, various strategies have been tried, including islet transplantation and common drug therapies, but the limitations of these procedures and lack of responsive to the high number of patients have prompted researchers to develop a new method. In recent decades, the use of stem cells and three-dimonsional (3D) scaffold to produce insulin-secreting cells is one of the most promising new approaches. Meanwhile, human-induced pluripotent stem cells (iPSCs) propose due to advantages such as autologousness and high pluripotency in cell therapy. This study aimed to evaluate the differentiation of iPSCs into pancreatic islet insuli-producing cells (IPCs) on Silk/PES (polyethersulfone) nanofibers as a 3D scaffold and compare it with a two-dimonsional (2D) cultured group. METHODS Investigating the functional, morphological, molecular, and cellular characteristics of differentiated iPSCs on control cultures (without differentiation medium), 2D and 3D were measured by various methods such as electron microscopy, Q-PCR, immunofluorescence, western blot, and ELISA. RESULTS This investigation revealed that differentiated cells on the 3D Silk/PES scaffold expressed pancreatic specific-markers such as insulin and pdx1 at higher levels than the control and 2D groups, with a significant difference between the two groups. All results of Q-PCR, immunocytochemistry, and western blot showed that IPCs in the silk/PES 3D group was more efficient than in the 2D group. In the face of these cases, the release of insulin and C-peptide in response to several concentrations of glucose in the 3D group was significantly higher than in the 2D culture. CONCLUSION Finally, our findings displayed that optimized Silk/PES 3D scaffolds can enhance the differentiation of IPCs from iPSCs compared to the 2D culture group.
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Affiliation(s)
- Seyedeh Fatemeh Ahmadi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - Hadi Hassannia
- Immunogenetics Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Ehsan Enderami
- Immunogenetics Research Center, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeid Abediankenari
- Immunogenetics Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Zahra Hosseini-Khah
- Diabetes Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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Abstract
Human induced pluripotent stem cells (iPSCs), since their discovery in 2007, have rapidly become a starting cell type of choice for the differentiation of many mature cell types. Their flexibility, amenability to gene editing and functional equivalence to embryonic stem cells ensured their subsequent adoption by many manufacturing processes for cellular products. In this chapter, we will discuss the process whereby iPSCs are generated, key quality control steps which should be considered during manufacturing, the application of good manufacturing practice to production processes and iPSC-derived cellular products which are already undergoing clinical trials. iPSCs provide a new avenue for the next generation of cellular therapeutics and by combining new differentiation protocols, quality control and reproducible manufacturing, iPSC-derived cellular products could provide treatments for many currently untreatable diseases, allowing the large-scale manufacture of high-quality cell therapies.
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Affiliation(s)
- Moyra Lawrence
- Centre for iPS Cell Research and Application (CiRA) and Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan.
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11
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Moauro A, Kruger RE, O'Hagan D, Ralston A. Fluorescent Reporters Distinguish Stem Cell Colony Subtypes During Somatic Cell Reprogramming. Cell Reprogram 2022; 24:353-362. [PMID: 36342671 PMCID: PMC9805857 DOI: 10.1089/cell.2022.0071] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Somatic cell reprogramming was first developed to create induced pluripotent stem (iPS) cells. Since that time, the highly dynamic and heterogeneous nature of the reprogramming process has come to be appreciated. Remarkably, a distinct type of stem cell, called induced extraembryonic endoderm (iXEN) stem cell, is also formed during reprogramming of mouse somatic cells by ectopic expression of the transcription factors, OCT4, SOX2, KLF4, and MYC (OSKM). The mechanisms leading somatic cells to adopt differing stem cell fates are challenging to resolve given that formation of either stem cell type is slow, stochastic, and rare. For these reasons, fluorescent gene expression reporters have provided an invaluable tool for revealing the path from the somatic state to pluripotency. However, no such reporters have been established for comparable studies of iXEN cell formation. In this study, we examined the expression of multiple fluorescent reporters, including Nanog, Oct4, and the endodermal genes, Gata4 and Gata6-alone and in combination, during reprogramming. We show that only simultaneous evaluation of Nanog and Gata4 reliably distinguishes iPS and iXEN cell colonies during reprogramming.
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Affiliation(s)
- Alexandra Moauro
- Molecular, Cellular and Integrative Physiology Ph.D. Program, Michigan State University, East Lansing, Michigan, USA
- D.O.-Ph.D. Program, Michigan State University, East Lansing, Michigan, USA
| | - Robin E. Kruger
- Cell and Molecular Biology Ph.D. Program, Michigan State University, East Lansing, Michigan, USA
- Reproductive and Developmental Sciences Program, Michigan State University, East Lansing, Michigan, USA
| | - Daniel O'Hagan
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan, USA
| | - Amy Ralston
- Reproductive and Developmental Sciences Program, Michigan State University, East Lansing, Michigan, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan, USA
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12
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Amorós MA, Choi ES, Cofré AR, Dokholyan NV, Duzzioni M. Motor neuron-derived induced pluripotent stem cells as a drug screening platform for amyotrophic lateral sclerosis. Front Cell Dev Biol 2022; 10:962881. [PMID: 36105357 PMCID: PMC9467621 DOI: 10.3389/fcell.2022.962881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022] Open
Abstract
The development of cell culture models that recapitulate the etiology and features of nervous system diseases is central to the discovery of new drugs and their translation onto therapies. Neuronal tissues are inaccessible due to skeletal constraints and the invasiveness of the procedure to obtain them. Thus, the emergence of induced pluripotent stem cell (iPSC) technology offers the opportunity to model different neuronal pathologies. Our focus centers on iPSCs derived from amyotrophic lateral sclerosis (ALS) patients, whose pathology remains in urgent need of new drugs and treatment. In this sense, we aim to revise the process to obtain motor neurons derived iPSCs (iPSC-MNs) from patients with ALS as a drug screening model, review current 3D-models and offer a perspective on bioinformatics as a powerful tool that can aid in the progress of finding new pharmacological treatments.
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Affiliation(s)
- Mariana A. Amorós
- Laboratory of Pharmacological Innovation, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Esther S. Choi
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA, United States
| | - Axel R. Cofré
- Laboratory of Pharmacological Innovation, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Nikolay V. Dokholyan
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA, United States
- Department of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, PA, United States
| | - Marcelo Duzzioni
- Laboratory of Pharmacological Innovation, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió, Alagoas, Brazil
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13
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Sebastian R, Song Y, Pak C. Probing the molecular and cellular pathological mechanisms of schizophrenia using human induced pluripotent stem cell models. Schizophr Res 2022:S0920-9964(22)00263-8. [PMID: 35835709 PMCID: PMC9832179 DOI: 10.1016/j.schres.2022.06.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 01/13/2023]
Abstract
With recent advancements in psychiatric genomics, as a field, "stem cell-based disease modelers" were given the exciting yet daunting task of translating the extensive list of disease-associated risks into biologically and clinically relevant information in order to deliver therapeutically meaningful leads and insights. Despite their limitations, human induced pluripotent stem cell (iPSCs) based models have greatly aided our understanding of the molecular and cellular mechanisms underlying the complex etiology of brain disorders including schizophrenia (SCZ). In this review, we summarize the major findings from studies in the past decade which utilized iPSC models to investigate cell type-specific phenotypes relevant to idiopathic SCZ and disease penetrant alleles. Across cell type differences, several biological themes emerged, serving as potential neurodevelopmental mechanisms of SCZ, including oxidative stress and mitochondrial dysfunction, depletion of progenitor pools and insufficient differentiation potential of these progenitors, and structural and functional deficits of neurons and other supporting cells. Here, we discuss both the recent progress as well as challenges and improvements needed for future studies utilizing iPSCs as a model for SCZ and other neuropsychiatric disorders.
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Affiliation(s)
- Rebecca Sebastian
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA 01003, USA; Neuroscience and Behavior Graduate Program, University of Massachusetts, Amherst, MA 01003, USA
| | - Yoonjae Song
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA 01003, USA
| | - ChangHui Pak
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA 01003, USA.
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14
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Zhang SY, Zhao J, Ni JJ, Li H, Quan ZZ, Qing H. Application and prospects of high-throughput screening for in vitro neurogenesis. World J Stem Cells 2022; 14:393-419. [PMID: 35949394 PMCID: PMC9244953 DOI: 10.4252/wjsc.v14.i6.393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/07/2022] [Accepted: 05/28/2022] [Indexed: 02/06/2023] Open
Abstract
Over the past few decades, high-throughput screening (HTS) has made great contributions to new drug discovery. HTS technology is equipped with higher throughput, minimized platforms, more automated and computerized operating systems, more efficient and sensitive detection devices, and rapid data processing systems. At the same time, in vitro neurogenesis is gradually becoming important in establishing models to investigate the mechanisms of neural disease or developmental processes. However, challenges remain in generating more mature and functional neurons with specific subtypes and in establishing robust and standardized three-dimensional (3D) in vitro models with neural cells cultured in 3D matrices or organoids representing specific brain regions. Here, we review the applications of HTS technologies on in vitro neurogenesis, especially aiming at identifying the essential genes, chemical small molecules and adaptive microenvironments that hold great prospects for generating functional neurons or more reproductive and homogeneous 3D organoids. We also discuss the developmental tendency of HTS technology, e.g., so-called next-generation screening, which utilizes 3D organoid-based screening combined with microfluidic devices to narrow the gap between in vitro models and in vivo situations both physiologically and pathologically.
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Affiliation(s)
- Shu-Yuan Zhang
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Juan Zhao
- Aerospace Medical Center, Aerospace Center Hospital, Beijing 100049, China
| | - Jun-Jun Ni
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Hui Li
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Zhen-Zhen Quan
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Hong Qing
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China
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15
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Wang Z, Zheng J, Pan R, Chen Y. Current status and future prospects of patient-derived induced pluripotent stem cells. Hum Cell 2021; 34:1601-1616. [PMID: 34378170 DOI: 10.1007/s13577-021-00592-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/06/2021] [Indexed: 12/28/2022]
Abstract
Induced pluripotent stem cells (iPSCs) are produced from adult somatic cells through reprogramming, which behave like embryonic stem cells (ESCs) but avoiding the controversial ethical issues from destruction of embryos. Since the first discovery in 2006 of four factors that are essential for maintaining the basic characteristics of ESC, global researches have rapidly improved the techniques for generating iPSCs. In this paper, we review new insights into patient-specific iPSC and summarize selected "disease-in-a-dish" examples that model the genetic and epigenetic variations of human diseases. Although more researches need to be done, studies have increasingly focused on the potential utility of iPSCs. The usability of iPSC technology is changing the fields of disease modeling and precision treatment. Aside from its potential use in regenerative cellular therapy for degenerative diseases, iPSC offers a range of new opportunities for the study of genetic human disorders, particularly, rare diseases. We believe that this rapidly moving field promises many more developments that will benefit modern medicine.
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Affiliation(s)
- Zhiqiang Wang
- Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China.,Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Jing Zheng
- Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Genetic and Developmental Disorders, Hangzhou, 310058, Zhejiang, China
| | - Ruolang Pan
- Institute for Cell-Based Drug Development of Zhejiang Province, S-Evans Biosciences, Hangzhou, 310012, Zhejiang, China.,Key Laboratory of Cell-Based Drug and Applied Technology Development in Zhejiang Province, Hangzhou, 310012, Zhejiang, China
| | - Ye Chen
- Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China. .,Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China. .,Zhejiang Provincial Key Laboratory of Genetic and Developmental Disorders, Hangzhou, 310058, Zhejiang, China.
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16
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iPSC Preparation and Epigenetic Memory: Does the Tissue Origin Matter? Cells 2021; 10:cells10061470. [PMID: 34208270 PMCID: PMC8230744 DOI: 10.3390/cells10061470] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/06/2021] [Accepted: 06/10/2021] [Indexed: 02/07/2023] Open
Abstract
The production of induced pluripotent stem cells (iPSCs) represent a breakthrough in regenerative medicine, providing new opportunities for understanding basic molecular mechanisms of human development and molecular aspects of degenerative diseases. In contrast to human embryonic stem cells (ESCs), iPSCs do not raise any ethical concerns regarding the onset of human personhood. Still, they present some technical issues related to immune rejection after transplantation and potential tumorigenicity, indicating that more steps forward must be completed to use iPSCs as a viable tool for in vivo tissue regeneration. On the other hand, cell source origin may be pivotal to iPSC generation since residual epigenetic memory could influence the iPSC phenotype and transplantation outcome. In this paper, we first review the impact of reprogramming methods and the choice of the tissue of origin on the epigenetic memory of the iPSCs or their differentiated cells. Next, we describe the importance of induction methods to determine the reprogramming efficiency and avoid integration in the host genome that could alter gene expression. Finally, we compare the significance of the tissue of origin and the inter-individual genetic variation modification that has been lightly evaluated so far, but which significantly impacts reprogramming.
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17
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Pellegrino E, Gutierrez MG. Human stem cell-based models for studying host-pathogen interactions. Cell Microbiol 2021; 23:e13335. [PMID: 33792137 DOI: 10.1111/cmi.13335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 02/06/2023]
Abstract
The use of human cell lines and primary cells as in vitro models represents a valuable approach to study cellular responses to infection. However, with the advent of new molecular technologies and tools available, there is a growing need to develop more physiologically relevant systems to overcome cell line model limitations and better mimic human disease. Since the discovery of human stem cells, its use has revolutionised the development of in vitro models. This is because after differentiation, these cells have the potential to reflect in vivo cell phenotypes and allow for probing questions in numerous fields of the biological sciences. Moreover, the possibility to combine the advantages of stem cell-derived cell types with genome editing technologies and engineered 3D microenvironments, provides enormous potential for producing in vitro systems to investigate cellular responses to infection that are both relevant and predictive. Here, we discuss recent advances in the use of human stem cells to model host-pathogen interactions, highlighting emerging technologies in the field of stem cell biology that can be exploited to investigate the fundamental biology of infection. TAKE AWAYS: hPSC overcome current limitations to study host-pathogen interactions in vitro. Genome editing can be used in hPSC to study cellular responses to infection. hPSC, 3D models and genome editing can recreate physiological in vitro systems.
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Affiliation(s)
- Enrica Pellegrino
- Host-Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, London, UK
| | - Maximiliano G Gutierrez
- Host-Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, London, UK
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18
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Peinkofer G, Maass M, Pfannkuche K, Sachinidis A, Baldus S, Hescheler J, Saric T, Halbach M. Persistence of intramyocardially transplanted murine induced pluripotent stem cell-derived cardiomyocytes from different developmental stages. Stem Cell Res Ther 2021; 12:46. [PMID: 33419458 PMCID: PMC7792075 DOI: 10.1186/s13287-020-02089-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/09/2020] [Indexed: 01/16/2023] Open
Abstract
Background Induced pluripotent stem cell-derived cardiomyocytes (iPSC-CM) are regarded as promising cell type for cardiac cell replacement therapy, but it is not known whether the developmental stage influences their persistence and functional integration in the host tissue, which are crucial for a long-term therapeutic benefit. To investigate this, we first tested the cell adhesion capability of murine iPSC-CM in vitro at three different time points during the differentiation process and then examined cell persistence and quality of electrical integration in the infarcted myocardium in vivo. Methods To test cell adhesion capabilities in vitro, iPSC-CM were seeded on fibronectin-coated cell culture dishes and decellularized ventricular extracellular matrix (ECM) scaffolds. After fixed periods of time, stably attached cells were quantified. For in vivo experiments, murine iPSC-CM expressing enhanced green fluorescent protein was injected into infarcted hearts of adult mice. After 6–7 days, viable ventricular tissue slices were prepared to enable action potential (AP) recordings in transplanted iPSC-CM and surrounding host cardiomyocytes. Afterwards, slices were lysed, and genomic DNA was prepared, which was then used for quantitative real-time PCR to evaluate grafted iPSC-CM count. Results The in vitro results indicated differences in cell adhesion capabilities between day 14, day 16, and day 18 iPSC-CM with day 14 iPSC-CM showing the largest number of attached cells on ECM scaffolds. After intramyocardial injection, day 14 iPSC-CM showed a significant higher cell count compared to day 16 iPSC-CM. AP measurements revealed no significant difference in the quality of electrical integration and only minor differences in AP properties between d14 and d16 iPSC-CM. Conclusion The results of the present study demonstrate that the developmental stage at the time of transplantation is crucial for the persistence of transplanted iPSC-CM. iPSC-CM at day 14 of differentiation showed the highest persistence after transplantation in vivo, which may be explained by a higher capability to adhere to the extracellular matrix. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-020-02089-5.
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Affiliation(s)
- Gabriel Peinkofer
- Department of Internal Medicine III, University Hospital of Cologne, Cologne, Germany. .,Center for Physiology and Pathophysiology, Institute of Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch Str. 37, Cologne, 50931, Germany. .,Marga-and-Walter-Boll Laboratory for Cardiac Tissue Engineering, University of Cologne, Cologne, Germany.
| | - Martina Maass
- Department of Internal Medicine III, University Hospital of Cologne, Cologne, Germany.,Department of Ophthalmology and Ocular GvHD Competence Center (P.S.), Medical Faculty, University of Cologne, Cologne, Germany
| | - Kurt Pfannkuche
- Center for Physiology and Pathophysiology, Institute of Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch Str. 37, Cologne, 50931, Germany.,Marga-and-Walter-Boll Laboratory for Cardiac Tissue Engineering, University of Cologne, Cologne, Germany.,Department of Pediatric Cardiology, University Hospital of Cologne, Cologne, Germany.,Center for Molecular Medicine, University of Cologne, Cologne, Germany
| | - Agapios Sachinidis
- Center for Physiology and Pathophysiology, Institute of Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch Str. 37, Cologne, 50931, Germany.,Center for Molecular Medicine, University of Cologne, Cologne, Germany
| | - Stephan Baldus
- Department of Internal Medicine III, University Hospital of Cologne, Cologne, Germany
| | - Jürgen Hescheler
- Center for Physiology and Pathophysiology, Institute of Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch Str. 37, Cologne, 50931, Germany
| | - Tomo Saric
- Center for Physiology and Pathophysiology, Institute of Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch Str. 37, Cologne, 50931, Germany
| | - Marcel Halbach
- Department of Internal Medicine III, University Hospital of Cologne, Cologne, Germany
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19
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Khalil AS, Jaenisch R, Mooney DJ. Engineered tissues and strategies to overcome challenges in drug development. Adv Drug Deliv Rev 2020; 158:116-139. [PMID: 32987094 PMCID: PMC7518978 DOI: 10.1016/j.addr.2020.09.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/29/2020] [Accepted: 09/23/2020] [Indexed: 12/16/2022]
Abstract
Current preclinical studies in drug development utilize high-throughput in vitro screens to identify drug leads, followed by both in vitro and in vivo models to predict lead candidates' pharmacokinetic and pharmacodynamic properties. The goal of these studies is to reduce the number of lead drug candidates down to the most likely to succeed in later human clinical trials. However, only 1 in 10 drug candidates that emerge from preclinical studies will succeed and become an approved therapeutic. Lack of efficacy or undetected toxicity represents roughly 75% of the causes for these failures, despite these parameters being the primary exclusion criteria in preclinical studies. Recently, advances in both biology and engineering have created new tools for constructing new preclinical models. These models can complement those used in current preclinical studies by helping to create more realistic representations of human tissues in vitro and in vivo. In this review, we describe current preclinical models to identify their value and limitations and then discuss select areas of research where improvements in preclinical models are particularly needed to advance drug development. Following this, we discuss design considerations for constructing preclinical models and then highlight recent advances in these efforts. Taken together, we aim to review the advances as of 2020 surrounding the prospect of biological and engineering tools for adding enhanced biological relevance to preclinical studies to aid in the challenges of failed drug candidates and the burden this poses on the drug development enterprise and thus healthcare.
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Affiliation(s)
- Andrew S Khalil
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02115, USA; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Rudolf Jaenisch
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02115, USA.
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20
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Abstract
Derivation of induced Pluripotent Stem Cells (iPSCs) by reprogramming somatic cells to a pluripotent state has revolutionized stem cell research. Ensuing this, various groups have used genetic and non-genetic approaches to generate iPSCs from numerous cell types. However, achieving a pluripotent state in most of the reprogramming studies is marred by serious limitations such as low reprogramming efficiency and slow kinetics. These limitations are mainly due to the presence of potent barriers that exist during reprogramming when a mature cell is coaxed to achieve a pluripotent state. Several studies have revealed that intrinsic factors such as non-optimal stoichiometry of reprogramming factors, specific signaling pathways, cellular senescence, pluripotency-inhibiting transcription factors and microRNAs act as a roadblock. In addition, the epigenetic state of somatic cells and specific epigenetic modifications that occur during reprogramming also remarkably impede the generation of iPSCs. In this review, we present a comprehensive overview of the barriers that inhibit reprogramming and the understanding of which will pave the way to develop safe strategies for efficient reprogramming.
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21
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TFAP2C facilitates somatic cell reprogramming by inhibiting c-Myc-dependent apoptosis and promoting mesenchymal-to-epithelial transition. Cell Death Dis 2020; 11:482. [PMID: 32587258 PMCID: PMC7316975 DOI: 10.1038/s41419-020-2684-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/08/2020] [Accepted: 06/12/2020] [Indexed: 02/05/2023]
Abstract
Transcription factors are known to mediate the conversion of somatic cells to induced pluripotent stem cells (iPSCs). Transcription factor TFAP2C plays important roles in the regulation of embryonic development and carcinogenesis; however, the roles of Tfap2c in regulating somatic cell reprogramming are not well understood. Here we demonstrate Tfap2c is induced during the generation of iPSCs from mouse fibroblasts and acts as a facilitator for iPSCs formation. Mechanistically, the c-Myc-dependent apoptosis, which is a roadblock to reprogramming, can be significantly mitigated by Tfap2c overexpression. Meanwhile, Tfap2c can greatly promote mesenchymal-to-epithelial transition (MET) at initiation stage of OSKM-induced reprogramming. Further analysis of gene expression and targets of Tfap2c during reprogramming by RNA-sequencing (RNA-seq) and ChIP-qPCR indicates that TFAP2C can promote epithelial gene expression by binding to their promoters directly. Finally, knockdown of E-cadherin (Cdh1), an important downstream target of TFAP2C and a critical regulator of MET antagonizes Tfap2c-mediated reprogramming. Taken together, we conclude that Tfap2c serves as a strong activator for somatic cell reprogramming through promoting the MET and inhibiting c-Myc-dependent apoptosis.
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22
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The Characteristics of Human iPS Cells and siRNA Transfection Under Hypoxia. Methods Mol Biol 2020. [PMID: 32567017 DOI: 10.1007/7651_2020_299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
The characteristics of pluripotent cells have great potential for basic and clinical research and application. We describe the effect of normoxia or hypoxia regarding the proliferation and pluripotency of human iPS cells using colony number counting and real-time polymerase chain reaction (PCR). In addition, the function of hypoxia-inducible factors (HIFs) in human iPS cells under hypoxic conditions is evaluated in relation to the expression of pluripotency markers by siRNA and real-time PCR. Furthermore, we introduce the change of HIF-2α expression when signal transducer and activator of transcription 3 (STAT3) is suppressed by its inhibitor, Stattic or S31 201, using RT-PCR.
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23
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McNeill RV, Ziegler GC, Radtke F, Nieberler M, Lesch KP, Kittel-Schneider S. Mental health dished up-the use of iPSC models in neuropsychiatric research. J Neural Transm (Vienna) 2020; 127:1547-1568. [PMID: 32377792 PMCID: PMC7578166 DOI: 10.1007/s00702-020-02197-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022]
Abstract
Genetic and molecular mechanisms that play a causal role in mental illnesses are challenging to elucidate, particularly as there is a lack of relevant in vitro and in vivo models. However, the advent of induced pluripotent stem cell (iPSC) technology has provided researchers with a novel toolbox. We conducted a systematic review using the PRISMA statement. A PubMed and Web of Science online search was performed (studies published between 2006–2020) using the following search strategy: hiPSC OR iPSC OR iPS OR stem cells AND schizophrenia disorder OR personality disorder OR antisocial personality disorder OR psychopathy OR bipolar disorder OR major depressive disorder OR obsessive compulsive disorder OR anxiety disorder OR substance use disorder OR alcohol use disorder OR nicotine use disorder OR opioid use disorder OR eating disorder OR anorexia nervosa OR attention-deficit/hyperactivity disorder OR gaming disorder. Using the above search criteria, a total of 3515 studies were found. After screening, a final total of 56 studies were deemed eligible for inclusion in our study. Using iPSC technology, psychiatric disease can be studied in the context of a patient’s own unique genetic background. This has allowed great strides to be made into uncovering the etiology of psychiatric disease, as well as providing a unique paradigm for drug testing. However, there is a lack of data for certain psychiatric disorders and several limitations to present iPSC-based studies, leading us to discuss how this field may progress in the next years to increase its utility in the battle to understand psychiatric disease.
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Affiliation(s)
- Rhiannon V McNeill
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Georg C Ziegler
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Franziska Radtke
- Department of Child and Adolescent Psychiatry, Psychosomatic Medicine and Psychotherapy University Hospital, University of Würzburg, Würzburg, Germany
| | - Matthias Nieberler
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Klaus-Peter Lesch
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Sarah Kittel-Schneider
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany.
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24
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Ohnmacht J, May P, Sinkkonen L, Krüger R. Missing heritability in Parkinson's disease: the emerging role of non-coding genetic variation. J Neural Transm (Vienna) 2020; 127:729-748. [PMID: 32248367 PMCID: PMC7242266 DOI: 10.1007/s00702-020-02184-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 03/24/2020] [Indexed: 02/01/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder caused by a complex interplay of genetic and environmental factors. For the stratification of PD patients and the development of advanced clinical trials, including causative treatments, a better understanding of the underlying genetic architecture of PD is required. Despite substantial efforts, genome-wide association studies have not been able to explain most of the observed heritability. The majority of PD-associated genetic variants are located in non-coding regions of the genome. A systematic assessment of their functional role is hampered by our incomplete understanding of genotype-phenotype correlations, for example through differential regulation of gene expression. Here, the recent progress and remaining challenges for the elucidation of the role of non-coding genetic variants is reviewed with a focus on PD as a complex disease with multifactorial origins. The function of gene regulatory elements and the impact of non-coding variants on them, and the means to map these elements on a genome-wide level, will be delineated. Moreover, examples of how the integration of functional genomic annotations can serve to identify disease-associated pathways and to prioritize disease- and cell type-specific regulatory variants will be given. Finally, strategies for functional validation and considerations for suitable model systems are outlined. Together this emphasizes the contribution of rare and common genetic variants to the complex pathogenesis of PD and points to remaining challenges for the dissection of genetic complexity that may allow for better stratification, improved diagnostics and more targeted treatments for PD in the future.
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Affiliation(s)
- Jochen Ohnmacht
- LCSB, University of Luxembourg, Belvaux, Luxembourg
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, Belvaux, Luxembourg
| | - Patrick May
- LCSB, University of Luxembourg, Belvaux, Luxembourg
| | - Lasse Sinkkonen
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, Belvaux, Luxembourg
| | - Rejko Krüger
- LCSB, University of Luxembourg, Belvaux, Luxembourg.
- Luxembourg Institute of Health (LIH), Transversal Translational Medicine, Strassen, Luxembourg.
- Parkinson Research Clinic, Centre Hospitalier de Luxembourg (CHL), Luxembourg, Luxembourg.
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25
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All roads lead to Rome: the many ways to pluripotency. J Assist Reprod Genet 2020; 37:1029-1036. [PMID: 32198717 DOI: 10.1007/s10815-020-01744-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/12/2020] [Indexed: 12/23/2022] Open
Abstract
Cell pluripotency, spatial restriction, and development are spatially and temporally controlled by epigenetic regulatory mechanisms that occur without any permanent loss or alteration of genetic material, but rather through modifications "on top of it." These changes modulate the accessibility to transcription factors, either allowing or repressing their activity, thus shaping cell phenotype. Several studies have demonstrated the possibility to interact with these processes, reactivating silenced genes and inducing a high plasticity state, via an active demethylating effect, driven by ten-eleven translocation (TET) enzymes and an overall decrease of global methylation. In agreement with this, TET activities have been shown to be indispensable for mesenchymal to epithelial transition of somatic cells into iPSCs and for small molecule-driven epigenetic erasure. Beside the epigenetic mechanisms, growing evidences highlight the importance of mechanical forces in supporting cell pluripotency, which is strongly influenced by 3D rearrangement and mechanical properties of the surrounding microenvironment, through the activation of specific mechanosensing-related pathways. In this review, we discuss and provide an overview of small molecule ability to modulate cell plasticity and define cell fate through the activation of direct demethylating effects. In addition, we describe the contribution of the Hippo signaling mechanotransduction pathway as one of the mechanisms involved in the maintenance of pluripotency during embryo development and its induction in somatic cells.
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26
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Mostajo-Radji MA, Schmitz MT, Montoya ST, Pollen AA. Reverse engineering human brain evolution using organoid models. Brain Res 2020; 1729:146582. [PMID: 31809699 PMCID: PMC7058376 DOI: 10.1016/j.brainres.2019.146582] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 11/25/2019] [Accepted: 11/29/2019] [Indexed: 02/06/2023]
Abstract
Primate brains vary dramatically in size and organization, but the genetic and developmental basis for these differences has been difficult to study due to lack of experimental models. Pluripotent stem cells and brain organoids provide a potential opportunity for comparative and functional studies of evolutionary differences, particularly during the early stages of neurogenesis. However, many challenges remain, including isolating stem cell lines from additional great ape individuals and species to capture the breadth of ape genetic diversity, improving the reproducibility of organoid models to study evolved differences in cell composition and combining multiple brain regions to capture connectivity relationships. Here, we describe strategies for identifying evolved developmental differences between humans and non-human primates and for isolating the underlying cellular and genetic mechanisms using comparative analyses, chimeric organoid culture, and genome engineering. In particular, we focus on how organoid models could ultimately be applied beyond studies of progenitor cell evolution to decode the origin of recent changes in cellular organization, connectivity patterns, myelination, synaptic development, and physiology that have been implicated in human cognition.
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Affiliation(s)
- Mohammed A Mostajo-Radji
- Department of Neurology, University of California San Francisco, San Francisco, CA 94143, USA; The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA 94143, USA
| | - Matthew T Schmitz
- Department of Neurology, University of California San Francisco, San Francisco, CA 94143, USA; The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA 94143, USA
| | - Sebastian Torres Montoya
- Health Co-creation Laboratory, Medellin General Hospital, Medellin, Antioquia, Colombia; Baskin School of Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA
| | - Alex A Pollen
- Department of Neurology, University of California San Francisco, San Francisco, CA 94143, USA; The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA 94143, USA.
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Xu Y, Chen C, Hellwarth PB, Bao X. Biomaterials for stem cell engineering and biomanufacturing. Bioact Mater 2019; 4:366-379. [PMID: 31872161 PMCID: PMC6909203 DOI: 10.1016/j.bioactmat.2019.11.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/09/2019] [Accepted: 11/20/2019] [Indexed: 12/15/2022] Open
Abstract
Recent years have witnessed the expansion of tissue failures and diseases. The uprising of regenerative medicine converges the sight onto stem cell-biomaterial based therapy. Tissue engineering and regenerative medicine proposes the strategy of constructing spatially, mechanically, chemically and biologically designed biomaterials for stem cells to grow and differentiate. Therefore, this paper summarized the basic properties of embryonic stem cells (ESCs), induced pluripotent stem cells (iPSCs) and adult stem cells. The properties of frequently used biomaterials were also described in terms of natural and synthetic origins. Particularly, the combination of stem cells and biomaterials for tissue repair applications was reviewed in terms of nervous, cardiovascular, pancreatic, hematopoietic and musculoskeletal system. Finally, stem-cell-related biomanufacturing was envisioned and the novel biofabrication technologies were discussed, enlightening a promising route for the future advancement of large-scale stem cell-biomaterial based therapeutic manufacturing.
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Affiliation(s)
| | | | | | - Xiaoping Bao
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, West Lafayette, IN, 47907, USA
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Evolving Role of RING1 and YY1 Binding Protein in the Regulation of Germ-Cell-Specific Transcription. Genes (Basel) 2019; 10:genes10110941. [PMID: 31752312 PMCID: PMC6895862 DOI: 10.3390/genes10110941] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/07/2019] [Accepted: 11/14/2019] [Indexed: 12/11/2022] Open
Abstract
Separation of germline cells from somatic lineages is one of the earliest decisions of embryogenesis. Genes expressed in germline cells include apoptotic and meiotic factors, which are not transcribed in the soma normally, but a number of testis-specific genes are active in numerous cancer types. During germ cell development, germ-cell-specific genes can be regulated by specific transcription factors, retinoic acid signaling and multimeric protein complexes. Non-canonical polycomb repressive complexes, like ncPRC1.6, play a critical role in the regulation of the activity of germ-cell-specific genes. RING1 and YY1 binding protein (RYBP) is one of the core members of the ncPRC1.6. Surprisingly, the role of Rybp in germ cell differentiation has not been defined yet. This review is focusing on the possible role of Rybp in this process. By analyzing whole-genome transcriptome alterations of the Rybp-/- embryonic stem (ES) cells and correlating this data with experimentally identified binding sites of ncPRC1.6 subunits and retinoic acid receptors in ES cells, we propose a model how germ-cell-specific transcription can be governed by an RYBP centered regulatory network, underlining the possible role of RYBP in germ cell differentiation and tumorigenesis.
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Chang EA, Jin SW, Nam MH, Kim SD. Human Induced Pluripotent Stem Cells : Clinical Significance and Applications in Neurologic Diseases. J Korean Neurosurg Soc 2019; 62:493-501. [PMID: 31392877 PMCID: PMC6732359 DOI: 10.3340/jkns.2018.0222] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 04/22/2019] [Indexed: 02/07/2023] Open
Abstract
The generation of human induced pluripotent stem cells (iPSCs) from somatic cells using gene transfer opens new areas for precision medicine with personalized cell therapy and encourages the discovery of essential platforms for targeted drug development. iPSCs retain the genome of the donor, may regenerate indefinitely, and undergo differentiation into virtually any cell type of interest using a range of published protocols. There has been enormous interest among researchers regarding the application of iPSC technology to regenerative medicine and human disease modeling, in particular, modeling of neurologic diseases using patient-specific iPSCs. For instance, Parkinson’s disease, Alzheimer’s disease, and spinal cord injuries may be treated with iPSC therapy or replacement tissues obtained from iPSCs. In this review, we discuss the work so far on generation and characterization of iPSCs and focus on recent advances in the use of human iPSCs in clinical setting.
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Affiliation(s)
- Eun-Ah Chang
- Department of Laboratory Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Sung-Won Jin
- Department of Neurosurgery, Korea University Ansan Hospital, Ansan, Korea
| | - Myung-Hyun Nam
- Department of Laboratory Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Sang-Dae Kim
- Department of Neurosurgery, Korea University Ansan Hospital, Ansan, Korea
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30
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Advances in Human Induced Pluripotent Stem Cell-Derived Hepatocytes for Use in Toxicity Testing. Ann Biomed Eng 2019; 48:1045-1057. [PMID: 31372857 DOI: 10.1007/s10439-019-02331-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 07/19/2019] [Indexed: 02/08/2023]
Abstract
Induced pluripotent stem cells (iPSCs) can be differentiated into multiple cell types in the body while maintaining proliferative capabilities. The generation of hepatocyte-like cells (HLCs) from iPSCs has resulted in a new source for liver cells. Since healthy primary human hepatocytes and hepatic cells are difficult to obtain, HLCs are gaining attention. HLCs can be obtained from a continuous, stable source while maintaining their original donor genotype, which opens new avenues into patient-specific testing and therapeutics. Studies have utilized HLCs for toxicity testing to further understand their drug metabolizing capabilities. This review focuses on advances being made to achieve hepatic functions from HLCs, their current use in hepatotoxicity testing, and their potential for future liver-related toxicity evaluations.
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31
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Niu W, Parent JM. Modeling genetic epilepsies in a dish. Dev Dyn 2019; 249:56-75. [DOI: 10.1002/dvdy.79] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 02/07/2023] Open
Affiliation(s)
- Wei Niu
- Department of Neurology and Neuroscience Graduate ProgramUniversity of Michigan Medical Center and VA Ann Arbor Healthcare System Ann Arbor Michigan
| | - Jack M. Parent
- Department of Neurology and Neuroscience Graduate ProgramUniversity of Michigan Medical Center and VA Ann Arbor Healthcare System Ann Arbor Michigan
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32
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Natale A, Vanmol K, Arslan A, Van Vlierberghe S, Dubruel P, Van Erps J, Thienpont H, Buzgo M, Boeckmans J, De Kock J, Vanhaecke T, Rogiers V, Rodrigues RM. Technological advancements for the development of stem cell-based models for hepatotoxicity testing. Arch Toxicol 2019; 93:1789-1805. [PMID: 31037322 DOI: 10.1007/s00204-019-02465-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 04/18/2019] [Indexed: 02/07/2023]
Abstract
Stem cells are characterized by their self-renewal capacity and their ability to differentiate into multiple cell types of the human body. Using directed differentiation strategies, stem cells can now be converted into hepatocyte-like cells (HLCs) and therefore, represent a unique cell source for toxicological applications in vitro. However, the acquired hepatic functionality of stem cell-derived HLCs is still significantly inferior to primary human hepatocytes. One of the main reasons for this is that most in vitro models use traditional two-dimensional (2D) setups where the flat substrata cannot properly mimic the physiology of the human liver. Therefore, 2D-setups are progressively being replaced by more advanced culture systems, which attempt to replicate the natural liver microenvironment, in which stem cells can better differentiate towards HLCs. This review highlights the most recent cell culture systems, including scaffold-free and scaffold-based three-dimensional (3D) technologies and microfluidics that can be employed for culture and hepatic differentiation of stem cells intended for hepatotoxicity testing. These methodologies have shown to improve in vitro liver cell functionality according to the in vivo liver physiology and allow to establish stem cell-based hepatic in vitro platforms for the accurate evaluation of xenobiotics.
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Affiliation(s)
- Alessandra Natale
- Department of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Vrije Universiteit Brussel, Brussels, Belgium
| | - Koen Vanmol
- Brussels Photonics (B-PHOT), Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | - Aysu Arslan
- Polymer Chemistry and Biomaterials Group (PBM), Centre of Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Sandra Van Vlierberghe
- Brussels Photonics (B-PHOT), Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
- Polymer Chemistry and Biomaterials Group (PBM), Centre of Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Peter Dubruel
- Polymer Chemistry and Biomaterials Group (PBM), Centre of Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Jürgen Van Erps
- Brussels Photonics (B-PHOT), Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | - Hugo Thienpont
- Brussels Photonics (B-PHOT), Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | | | - Joost Boeckmans
- Department of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Vrije Universiteit Brussel, Brussels, Belgium
| | - Joery De Kock
- Department of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Vrije Universiteit Brussel, Brussels, Belgium
| | - Tamara Vanhaecke
- Department of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Vrije Universiteit Brussel, Brussels, Belgium
| | - Vera Rogiers
- Department of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Vrije Universiteit Brussel, Brussels, Belgium
| | - Robim M Rodrigues
- Department of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Vrije Universiteit Brussel, Brussels, Belgium.
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33
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Zhong X, Cui P, Cai Y, Wang L, He X, Long P, Lu K, Yan R, Zhang Y, Pan X, Zhao X, Li W, Zhang H, Zhou Q, Gao P. Mitochondrial Dynamics Is Critical for the Full Pluripotency and Embryonic Developmental Potential of Pluripotent Stem Cells. Cell Metab 2019; 29:979-992.e4. [PMID: 30527743 DOI: 10.1016/j.cmet.2018.11.007] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 09/14/2018] [Accepted: 11/14/2018] [Indexed: 12/12/2022]
Abstract
While the pluripotency of stem cells is known to determine the fate of embryonic development, the mechanisms underlying the acquisition and maintenance of full pluripotency largely remain elusive. Here, we show that the balance between mitochondrial fission and fusion is critical for the full pluripotency of stem cells. By analyzing induced pluripotent stem cells with differential developmental potential, we found that excess mitochondrial fission is associated with an impaired embryonic developmental potential. We further uncover that the disruption of mitochondrial dynamics impairs the differentiation and embryonic development of pluripotent stem cells; most notably, pluripotent stem cells that display excess mitochondrial fission fail to produce live-born offspring by tetraploid complementation. Mechanistically, excess mitochondrial fission increases cytosolic Ca2+ entry and CaMKII activity, leading to ubiquitin-mediated proteasomal degradation of β-Catenin protein. Our results reveal a previously unappreciated fundamental role for mitochondrial dynamics in determining the full pluripotency and embryonic developmental potential of pluripotent stem cells.
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Affiliation(s)
- Xiuying Zhong
- Guangzhou First People's Hospital, School of Medicine and Institutes for Life Sciences, South China University of Technology, Guangzhou 510006, China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China; Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Peng Cui
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yongping Cai
- Department of Pathology, School of Medicine, Anhui Medical University, Hefei 230022, China
| | - Lihua Wang
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Xiaoping He
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Peipei Long
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Kangyang Lu
- Department of Pathology, School of Medicine, Anhui Medical University, Hefei 230022, China
| | - Ronghui Yan
- Guangzhou First People's Hospital, School of Medicine and Institutes for Life Sciences, South China University of Technology, Guangzhou 510006, China; Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China; Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, China
| | - Ying Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xin Pan
- Institute of Basic Medical Sciences, National Center of Biomedical Analysis, Beijing 100853, China
| | - Xiaoyang Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Huafeng Zhang
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China.
| | - Qi Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Ping Gao
- Guangzhou First People's Hospital, School of Medicine and Institutes for Life Sciences, South China University of Technology, Guangzhou 510006, China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China; Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China; Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, China; Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China.
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Wang Y, Hao L, Li H, Cleary JD, Tomac MP, Thapa A, Guo X, Zeng D, Wang H, McRae M, Jastrzemski O, Smith-Fassler AM, Xu Y, Xia G. Abnormal nuclear aggregation and myotube degeneration in myotonic dystrophy type 1. Neurol Sci 2019; 40:1255-1265. [PMID: 30891637 DOI: 10.1007/s10072-019-03783-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 02/20/2019] [Indexed: 12/21/2022]
Abstract
Myotonic dystrophy type 1 (DM1) is caused by CTG nucleotide repeat expansions in the 3'-untranslated region (3'-UTR) of the dystrophia myotonica protein kinase (DMPK) gene. The expanded CTG repeats encode toxic CUG RNAs that cause disease, largely through RNA gain-of-function. DM1 is a fatal disease characterized by progressive muscle wasting, which has no cure. Regenerative medicine has emerged as a promising therapeutic modality for DM1, especially with the advancement of induced pluripotent stem (iPS) cell technology and therapeutic genome editing. However, there is an unmet need to identify in vitro outcome measures to demonstrate the therapeutic effects prior to in vivo clinical trials. In this study, we examined the muscle regeneration (myotube formation) in normal and DM1 myoblasts in vitro to establish outcome measures for therapeutic monitoring. We found normal proliferation of DM1 myoblasts, but abnormal nuclear aggregation during the early stage myotube formation, as well as myotube degeneration during the late stage of myotube formation. We concluded that early abnormal nuclear aggregation and late myotube degeneration offer easy and sensitive outcome measures to monitor therapeutic effects in vitro.
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Affiliation(s)
- Yanlin Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Henan, 450000, China
| | - Lei Hao
- Department of Neurology, The Fifth People's Hospital of Chongqing, Chongqing, 400062, China
| | - Hui Li
- Department of Neurology, University of Florida, Gainesville, FL, USA
| | - John D Cleary
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, USA
| | - Michael P Tomac
- Department of Neurology and Neuroscience, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Arjun Thapa
- Department of Neurology and Neuroscience, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Xiuming Guo
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Desmond Zeng
- Department of Neurology, University of Florida, Gainesville, FL, USA
| | - Hongcai Wang
- Department of Neurology and Neuroscience, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - MacKezie McRae
- Department of Neurology and Neuroscience, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Olivia Jastrzemski
- Department of Neurology and Neuroscience, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Ali Marichen Smith-Fassler
- Department of Neurology and Neuroscience, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Yuming Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Henan, 450000, China.
| | - Guangbin Xia
- Department of Neurology and Neuroscience, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA.
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Li L, Che D, Wang X, Zhang P, Rahman SU, Zhao J, Yu J, Tao S, Lu H, Liao M. CellSim: a novel software to calculate cell similarity and identify their co-regulation networks. BMC Bioinformatics 2019; 20:111. [PMID: 30832570 PMCID: PMC6399906 DOI: 10.1186/s12859-019-2699-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 02/22/2019] [Indexed: 12/14/2022] Open
Abstract
Background Cell direct reprogramming technology has been rapidly developed with its low risk of tumor risk and avoidance of ethical issues caused by stem cells, but it is still limited to specific cell types. Direct reprogramming from an original cell to target cell type needs the cell similarity and cell specific regulatory network. The position and function of cells in vivo, can provide some hints about the cell similarity. However, it still needs further clarification based on molecular level studies. Result CellSim is therefore developed to offer a solution for cell similarity calculation and a tool of bioinformatics for researchers. CellSim is a novel tool for the similarity calculation of different cells based on cell ontology and molecular networks in over 2000 different human cell types and presents sharing regulation networks of part cells. CellSim can also calculate cell types by entering a list of genes, including more than 250 human normal tissue specific cell types and 130 cancer cell types. The results are shown in both tables and spider charts which can be preserved easily and freely. Conclusion CellSim aims to provide a computational strategy for cell similarity and the identification of distinct cell types. Stable CellSim releases (Windows, Linux, and Mac OS/X) are available at: www.cellsim.nwsuaflmz.com, and source code is available at: https://github.com/lileijie1992/CellSim/.
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Affiliation(s)
- Leijie Li
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Dongxue Che
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaodan Wang
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Peng Zhang
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Siddiq Ur Rahman
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Jianbang Zhao
- College of Information Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Jiantao Yu
- College of Information Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Shiheng Tao
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Hui Lu
- Department of Bioinformatics and Biostatistics, SJTU Yale Joint Center Biostatistics, Shanghai Jiao Tong University, Shanghai, China
| | - Mingzhi Liao
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.
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Budash HV, Bilko NM. Embryonic and Induced Pluripotent Stem Cells and Their Differentiation in the Cardiomyocyte Direction in the Presence of Dimethyl Sulfoxide. CYTOL GENET+ 2019. [DOI: 10.3103/s0095452719010055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Wang Y, Hao L, Wang H, Santostefano K, Thapa A, Cleary J, Li H, Guo X, Terada N, Ashizawa T, Xia G. Therapeutic Genome Editing for Myotonic Dystrophy Type 1 Using CRISPR/Cas9. Mol Ther 2018; 26:2617-2630. [PMID: 30274788 PMCID: PMC6225032 DOI: 10.1016/j.ymthe.2018.09.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 08/30/2018] [Accepted: 09/06/2018] [Indexed: 12/18/2022] Open
Abstract
Myotonic dystrophy type 1 (DM1) is caused by a CTG nucleotide repeat expansion within the 3' UTR of the Dystrophia Myotonica protein kinase gene. In this study, we explored therapeutic genome editing using CRISPR/Cas9 via targeted deletion of expanded CTG repeats and targeted insertion of polyadenylation signals in the 3' UTR upstream of the CTG repeats to eliminate toxic RNA CUG repeats. We found paired SpCas9 or SaCas9 guide RNA induced deletion of expanded CTG repeats. However, this approach incurred frequent inversion in both the mutant and normal alleles. In contrast, the insertion of polyadenylation signals in the 3' UTR upstream of the CTG repeats eliminated toxic RNA CUG repeats, which led to phenotype reversal in differentiated neural stem cells, forebrain neurons, cardiomyocytes, and skeletal muscle myofibers. We concluded that targeted insertion of polyadenylation signals in the 3' UTR is a viable approach to develop therapeutic genome editing for DM1.
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Affiliation(s)
- Yanlin Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Henan 450000, China
| | - Lei Hao
- Department of Neurology, The Fifth People's Hospital of Chongqing, Chongqing 400062, China
| | - Hongcai Wang
- Department of Neurology, Affiliated Hospital of Binzhou Medical University, Binzhou City, Shandong Province, China; Department of Neurology, University of New Mexico, Albuquerque, NM, USA
| | - Katherine Santostefano
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Arjun Thapa
- Department of Neurology, University of New Mexico, Albuquerque, NM, USA
| | - John Cleary
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, USA
| | - Hui Li
- Department of Neurology, University of Wisconsin, Madison, WI, USA
| | - Xiuming Guo
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Naohiro Terada
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Tetsuo Ashizawa
- Houston Methodist Neurological Institute and Research Institute, 6670 Bertner Ave. R11-117, Houston, TX, USA
| | - Guangbin Xia
- Department of Neurology, University of New Mexico, Albuquerque, NM, USA; Department of Neuroscience, University of New Mexico, Albuquerque, NM, USA.
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Abstract
Purpose of Review Muscular dystrophies (MDs) are a spectrum of muscle disorders, which are caused by a number of gene mutations. The studies of MDs are limited due to lack of appropriate models, except for Duchenne muscular dystrophy (DMD), myotonic dystrophy type 1 (DM1), facioscapulohumeral muscular dystrophy (FSHD), and certain type of limb-girdle muscular dystrophy (LGMD). Human induced pluripotent stem cell (iPSC) technologies are emerging to offer a useful model for mechanistic studies, drug discovery, and cell-based therapy to supplement in vivo animal models. This review will focus on current applications of iPSC as disease models of MDs for studies of pathogenic mechanisms and therapeutic development. Recent Findings Many and more human disease-specific iPSCs have been or being established, which carry the natural mutation of MDs with human genomic background. These iPSCs can be differentiated into specific cell types affected in a particular MDs such as skeletal muscle progenitor cells, skeletal muscle fibers, and cardiomyocytes. Human iPSCs are particularly useful for studies of the pathogenicity at the early stage or developmental phase of MDs. High-throughput screening using disease-specific human iPSCs has become a powerful technology in drug discovery. While MD iPSCs have been generated for cell-based replacement therapy, recent advances in genome editing technologies enabled correction of genetic mutations in these cells in culture, raising hope for in vivo genome therapy, which offers a fundamental cure for these daunting inherited MDs. Summary Human disease-specific iPSC models for MDs are emerging as an additional tool to current disease models for elucidating disease mechanisms and developing therapeutic intervention.
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Affiliation(s)
- Guangbin Xia
- Department of Neurology, College of Medicine, University of New Mexico, Albuquerque, NM USA
| | - Naohiro Terada
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, Gainesville, FL USA
| | - Tetsuo Ashizawa
- Houston Methodist Neurological Institute and Research Institute, 6670 Bertner Ave R11-117, Houston, TX USA
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Personalized gene and cell therapy for Duchenne Muscular Dystrophy. Neuromuscul Disord 2018; 28:803-824. [DOI: 10.1016/j.nmd.2018.06.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 06/19/2018] [Accepted: 06/22/2018] [Indexed: 01/09/2023]
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40
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Toraldo DM, Toraldo S, Conte L. The Clinical Use of Stem Cell Research in Chronic Obstructive Pulmonary Disease: A Critical Analysis of Current Policies. J Clin Med Res 2018; 10:671-678. [PMID: 30116436 PMCID: PMC6089575 DOI: 10.14740/jocmr3484w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a disorder affecting more than 200 million people around the world, resulting in three million deaths per year. COPD is characterized by the loss of lung tissue and airway remodelling, with chronic inflammation of the airways and progressive destruction of lung parenchyma. The use of stem cells may lead to regenerative processes that address biological damage. However, this approach raises ethical issues that need to be considered in clinical trials using stem cell therapy, such as informed consent, patient recruitment and harm minimization, as well as the inherent uncertainty of these medical procedures on human beings. Indeed, up to now, these experiments have been performed in preclinical studies using animal models, with few studies involving humans. Additional efforts should be made to assess this promising procedure.
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Affiliation(s)
| | - Sara Toraldo
- Faculty of Economics, Catholic University of the Sacred Heart, Piacenza, Italy
| | - Luana Conte
- Interdisciplinary Laboratory of Applied Research in Medicine (DReAM), University of the Salento, in the "V. Fazzi" Hospital, Italy.,Department of Biological and Environmental Sciences and Technologies, University of the Salento, Lecce, Italy
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41
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Morena F, Argentati C, Bazzucchi M, Emiliani C, Martino S. Above the Epitranscriptome: RNA Modifications and Stem Cell Identity. Genes (Basel) 2018; 9:E329. [PMID: 29958477 PMCID: PMC6070936 DOI: 10.3390/genes9070329] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/15/2018] [Accepted: 06/25/2018] [Indexed: 02/07/2023] Open
Abstract
Sequence databases and transcriptome-wide mapping have revealed different reversible and dynamic chemical modifications of the nitrogen bases of RNA molecules. Modifications occur in coding RNAs and noncoding-RNAs post-transcriptionally and they can influence the RNA structure, metabolism, and function. The result is the expansion of the variety of the transcriptome. In fact, depending on the type of modification, RNA molecules enter into a specific program exerting the role of the player or/and the target in biological and pathological processes. Many research groups are exploring the role of RNA modifications (alias epitranscriptome) in cell proliferation, survival, and in more specialized activities. More recently, the role of RNA modifications has been also explored in stem cell biology. Our understanding in this context is still in its infancy. Available evidence addresses the role of RNA modifications in self-renewal, commitment, and differentiation processes of stem cells. In this review, we will focus on five epitranscriptomic marks: N6-methyladenosine, N1-methyladenosine, 5-methylcytosine, Pseudouridine (Ψ) and Adenosine-to-Inosine editing. We will provide insights into the function and the distribution of these chemical modifications in coding RNAs and noncoding-RNAs. Mainly, we will emphasize the role of epitranscriptomic mechanisms in the biology of naïve, primed, embryonic, adult, and cancer stem cells.
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Affiliation(s)
- Francesco Morena
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, 06126 Perugia, Italy.
| | - Chiara Argentati
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, 06126 Perugia, Italy.
| | - Martina Bazzucchi
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, 06126 Perugia, Italy.
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, 06126 Perugia, Italy.
- CEMIN, Center of Excellence of Nanostructured Innovative Materials, University of Perugia, 06126 Perugia, Italy.
| | - Sabata Martino
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, 06126 Perugia, Italy.
- CEMIN, Center of Excellence of Nanostructured Innovative Materials, University of Perugia, 06126 Perugia, Italy.
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42
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Araújo JADM, Hilscher MM, Marques-Coelho D, Golbert DCF, Cornelio DA, Batistuzzo de Medeiros SR, Leão RN, Costa MR. Direct Reprogramming of Adult Human Somatic Stem Cells Into Functional Neurons Using Sox2, Ascl1, and Neurog2. Front Cell Neurosci 2018; 12:155. [PMID: 29937717 PMCID: PMC6003093 DOI: 10.3389/fncel.2018.00155] [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: 04/23/2018] [Accepted: 05/17/2018] [Indexed: 12/21/2022] Open
Abstract
Reprogramming of somatic cells into induced pluripotent stem cells (iPS) or directly into cells from a different lineage, including neurons, has revolutionized research in regenerative medicine in recent years. Mesenchymal stem cells are good candidates for lineage reprogramming and autologous transplantation, since they can be easily isolated from accessible sources in adult humans, such as bone marrow and dental tissues. Here, we demonstrate that expression of the transcription factors (TFs) SRY (sex determining region Y)-box 2 (Sox2), Mammalian achaete-scute homolog 1 (Ascl1), or Neurogenin 2 (Neurog2) is sufficient for reprogramming human umbilical cord mesenchymal stem cells (hUCMSC) into induced neurons (iNs). Furthermore, the combination of Sox2/Ascl1 or Sox2/Neurog2 is sufficient to reprogram up to 50% of transfected hUCMSCs into iNs showing electrical properties of mature neurons and establishing synaptic contacts with co-culture primary neurons. Finally, we show evidence supporting the notion that different combinations of TFs (Sox2/Ascl1 and Sox2/Neurog2) may induce multiple and overlapping neuronal phenotypes in lineage-reprogrammed iNs, suggesting that neuronal fate is determined by a combination of signals involving the TFs used for reprogramming but also the internal state of the converted cell. Altogether, the data presented here contribute to the advancement of techniques aiming at obtaining specific neuronal phenotypes from lineage-converted human somatic cells to treat neurological disorders.
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Affiliation(s)
| | - Markus M Hilscher
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Diego Marques-Coelho
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil.,Bioinformatics Multidisciplinary Environment, IMD, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Daiane C F Golbert
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Deborah A Cornelio
- Laboratório de Biologia Molecular e Genômica, Centro de Biociências, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Silvia R Batistuzzo de Medeiros
- Laboratório de Biologia Molecular e Genômica, Centro de Biociências, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Richardson N Leão
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Marcos R Costa
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
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43
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Abstract
Research on stem cells is one of the fastest growing areas of regenerative medicine that paves the way for a comprehensive solution to cell therapy. Today, stem cells are precious assets for generating different types of cells derived from either natural embryonic stem (ES) cells or induced pluripotent stem (iPS) cells. The iPS technology can revolutionize the future of clinics by offering personalized medicine, which will provide the future treatment for curing untreatable diseases. Although iPS cell therapy is now at its infancy, promising research has motivated scientists to pursue this therapeutic approach. In this article, we provide information regarding similarities and differences between ES and iPS cells, and focus on the non-integrating methods of iPS generation via RNA molecules, especially microRNAs with an emphasis on the elucidation of their role and importance in pluripotency.
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Affiliation(s)
- Abbas Beh-Pajooh
- REBIRTH-Group Translational Hepatology and Stem Cell Biology, Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Tobias Cantz
- REBIRTH-Group Translational Hepatology and Stem Cell Biology, Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.,Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
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44
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Role of Jnk1 in development of neural precursors revealed by iPSC modeling. Oncotarget 2018; 7:60919-60928. [PMID: 27556303 PMCID: PMC5308626 DOI: 10.18632/oncotarget.11377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 08/13/2016] [Indexed: 01/09/2023] Open
Abstract
Jnk1-deficient mice manifest disrupted anterior commissure formation and loss of axonal and dendritic microtubule integrity. However, the mechanisms and the specific stages underlying the developmental defects remain to be elucidated. Here, we report the generation of Jnk1-deficient (Jnk1 KO) iPSCs from Jnk1 KO mouse tail-tip fibroblasts (TTFs) for modeling the neural disease development. The efficiency in the early induction of iPSCs was higher from Jnk1 KO fibroblasts than that of wild-type (WT) fibroblasts. These Jnk1 KO iPSCs exhibited pluripotent stem cell properties and had the ability of differentiation into general three embryonic germ layers in vitro and in vivo. However, Jnk1 KO iPSCs showed reduced capacity in neural differentiation in the spontaneous differentiation by embryoid body (EB) formation. Notably, by directed lineage differentiation, Jnk1 KO iPSCs specifically exhibited an impaired ability to differentiate into early stage neural precursors. Furthermore, the neuroepitheliums generated from Jnk1 KO iPSCs appeared smaller, indicative of neural stem cell developmental defects, as demonstrated by teratoma tests in vivo. These data suggest that Jnk1 deficiency inhibits the development of neural stem cells/precursors and provide insights to further understanding the complex pathogenic mechanisms of JNK1-related neural diseases.
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45
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Watts J, Lokken A, Moauro A, Ralston A. Capturing and Interconverting Embryonic Cell Fates in a Dish. Curr Top Dev Biol 2018; 128:181-202. [PMID: 29477163 DOI: 10.1016/bs.ctdb.2017.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cells of the early embryo are totipotent because they will differentiate to produce the fetus and its surrounding extraembryonic tissues. By contrast, embryonic stem (ES) cells are considered to be merely pluripotent because they lack the ability to efficiently produce extraembryonic cell types. The relatively limited developmental potential of ES cells can be explained by the observation that ES cells are derived from the embryo after its cells have already begun to specialize and lose totipotency. Meanwhile, at the time that pluripotent ES cell progenitors are specified, so are the multipotent progenitors of two extraembryonic stem cell types: trophoblast stem (TS) cells and extraembryonic endoderm stem (XEN) cells. Notably, all three embryo-derived stem cell types are capable of either self-renewing or differentiating in a lineage-appropriate manner. These three types of embryo-derived stem cell serve as paradigms for defining the genes and pathways that define and maintain unique stem cell identities. Remarkably, some of the mechanisms that maintain the specific developmental potential of each stem cell line do so by preventing conversion to another stem cell fate. This chapter highlights noteworthy studies that have identified the genes and pathways that normally limit the interconversion of stem cell identities.
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Affiliation(s)
- Jennifer Watts
- Michigan State University, East Lansing, MI, United States; Program in Reproductive and Developmental Sciences, Michigan State University, East Lansing, MI, United States; Graduate Program in Physiology, Michigan State University, East Lansing, MI, United States
| | - Alyson Lokken
- Michigan State University, East Lansing, MI, United States
| | - Alexandra Moauro
- Michigan State University, East Lansing, MI, United States; Graduate Program in Physiology, Michigan State University, East Lansing, MI, United States
| | - Amy Ralston
- Michigan State University, East Lansing, MI, United States; Program in Reproductive and Developmental Sciences, Michigan State University, East Lansing, MI, United States.
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46
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The "evolutionary field" hypothesis. Non-Mendelian transgenerational inheritance mediates diversification and evolution. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2017; 134:27-37. [PMID: 29223657 DOI: 10.1016/j.pbiomolbio.2017.12.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 11/17/2017] [Accepted: 12/05/2017] [Indexed: 12/23/2022]
Abstract
Epigenetics is increasingly regarded as a potential contributing factor to evolution. Building on apparently unrelated results, here I propose that RNA-containing nanovesicles, predominantly small regulatory RNAs, are released from somatic tissues in the bloodstream, cross the Weismann barrier, reach the epididymis, and are eventually taken up by spermatozoa; henceforth the information is delivered to oocytes at fertilization. In the model, a LINE-1-encoded reverse transcriptase activity, present in spermatozoa and early embryos, plays a key role in amplifying and propagating these RNAs as extrachromosomal structures. It may be conceived that, over generations, the cumulative effects of sperm-delivered RNAs would cross a critical threshold and overcome the buffering capacity of embryos. As a whole, the process can promote the generation of an information-containing platform that drives the reshaping of the embryonic epigenetic landscape with the potential to generate ontogenic changes and redirect the evolutionary trajectory. Over time, evolutionary significant, stably acquired variations could be generated through the process. The interplay between these elements defines the concept of "evolutionary field", a self-consistent, comprehensive information-containing platform and a source of discontinuous evolutionary novelty.
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47
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Yang L, Lin Z, Wang Y, Gao S, Li Q, Li C, Xu W, Chen J, Liu T, Song Z, Liu G. MiR-5100 increases the cisplatin resistance of the lung cancer stem cells by inhibiting the Rab6. Mol Carcinog 2017; 57:419-428. [PMID: 29144562 DOI: 10.1002/mc.22765] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 10/19/2017] [Accepted: 11/14/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Lawei Yang
- Clinical Research Center; Guangdong Medical University; Zhanjiang 524001 China
| | - Ziying Lin
- Clinical Research Center; Guangdong Medical University; Zhanjiang 524001 China
| | - Yahong Wang
- Clinical Research Center; Guangdong Medical University; Zhanjiang 524001 China
| | - Shenglan Gao
- Clinical Research Center; Guangdong Medical University; Zhanjiang 524001 China
| | - Qinglan Li
- Department of Respiratory Medicine; Affiliated Hospital of Guangdong Medical University; Zhanjiang 524001 China
| | - Chunyan Li
- Clinical Research Center; Guangdong Medical University; Zhanjiang 524001 China
| | - Wenya Xu
- Clinical Research Center; Guangdong Medical University; Zhanjiang 524001 China
| | - Jie Chen
- Department of Cardiothoracic Surgery; Affiliated Hospital of Guangdong Medical University; Zhanjiang 524001 China
| | - Tie Liu
- The First Affiliated Hospital; Medical School of Xi'an Jiaotong University; Xi'an Shanxi 710061 China
| | - Zeqing Song
- Department of Respiratory Medicine; Affiliated Hospital of Guangdong Medical University; Zhanjiang 524001 China
| | - Gang Liu
- Clinical Research Center; Guangdong Medical University; Zhanjiang 524001 China
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48
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Martin-Lopez M, Maeso-Alonso L, Fuertes-Alvarez S, Balboa D, Rodríguez-Cortez V, Weltner J, Diez-Prieto I, Davis A, Wu Y, Otonkoski T, Flores ER, Menéndez P, Marques MM, Marin MC. p73 is required for appropriate BMP-induced mesenchymal-to-epithelial transition during somatic cell reprogramming. Cell Death Dis 2017; 8:e3034. [PMID: 28880267 PMCID: PMC5636977 DOI: 10.1038/cddis.2017.432] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 07/20/2017] [Accepted: 07/25/2017] [Indexed: 01/11/2023]
Abstract
The generation of induced pluripotent stem cells (iPSCs) by somatic cell reprogramming holds great potential for modeling human diseases. However, the reprogramming process remains very inefficient and a better understanding of its basic biology is required. The mesenchymal-to-epithelial transition (MET) has been recognized as a crucial step for the successful reprogramming of fibroblasts into iPSCs. It has been reported that the p53 tumor suppressor gene acts as a barrier of this process, while its homolog p63 acts as an enabling factor. In this regard, the information concerning the role of the third homolog, p73, during cell reprogramming is limited. Here, we derive total Trp73 knockout mouse embryonic fibroblasts, with or without Trp53, and examine their reprogramming capacity. We show that p73 is required for effective reprogramming by the Yamanaka factors, even in the absence of p53. Lack of p73 affects the early stages of reprogramming, impairing the MET and resulting in altered maturation and stabilization phases. Accordingly, the obtained p73-deficient iPSCs have a defective epithelial phenotype and alterations in the expression of pluripotency markers. We demonstrate that p73 deficiency impairs the MET, at least in part, by hindering BMP pathway activation. We report that p73 is a positive modulator of the BMP circuit, enhancing its activation by DNp73 repression of the Smad6 promoter. Collectively, these findings provide mechanistic insight into the MET process, proposing p73 as an enhancer of MET during cellular reprogramming.
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Affiliation(s)
- Marta Martin-Lopez
- Instituto de Biomedicina (IBIOMED) and Departamento de Biología Molecular, University of León, University of Leon, Campus de Vegazana, Leon, Spain
| | - Laura Maeso-Alonso
- Instituto de Biomedicina (IBIOMED) and Departamento de Biología Molecular, University of León, University of Leon, Campus de Vegazana, Leon, Spain
| | - Sandra Fuertes-Alvarez
- Instituto de Biomedicina (IBIOMED) and Departamento de Biología Molecular, University of León, University of Leon, Campus de Vegazana, Leon, Spain
| | - Diego Balboa
- Research Programs Unit, Molecular Neurology, Biomedicum Stem Cell Center, University of Helsinki, Haartmaninkatu 8, Helsinki, Finland
| | - Virginia Rodríguez-Cortez
- Josep Carreras Leukemia Research Institute, Department of Biomedicine. School of Medicine, University of Barcelona, Casanova 143, Barcelona, Spain
| | - Jere Weltner
- Research Programs Unit, Molecular Neurology, Biomedicum Stem Cell Center, University of Helsinki, Haartmaninkatu 8, Helsinki, Finland
| | - Inmaculada Diez-Prieto
- Instituto de Biomedicina (IBIOMED) and Departamento de Biología Molecular, University of León, University of Leon, Campus de Vegazana, Leon, Spain.,Departamento de Medicina, Cirugía y Anatomía Veterinaria, University of León, Campus de Vegazana, León, Spain
| | - Andrew Davis
- Department of Molecular Oncology, Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, FL, USA
| | - Yaning Wu
- Department of Molecular Oncology, Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, FL, USA
| | - Timo Otonkoski
- Research Programs Unit, Molecular Neurology, Biomedicum Stem Cell Center, University of Helsinki, Haartmaninkatu 8, Helsinki, Finland
| | - Elsa R Flores
- Department of Molecular Oncology, Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, FL, USA
| | - Pablo Menéndez
- Josep Carreras Leukemia Research Institute, Department of Biomedicine. School of Medicine, University of Barcelona, Casanova 143, Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), ISCIII, Madrid, Spain
| | - Margarita M Marques
- Instituto de Desarrollo Ganadero and Departamento de Producción Animal, University of León, Campus de Vegazana, León, Spain
| | - Maria C Marin
- Instituto de Biomedicina (IBIOMED) and Departamento de Biología Molecular, University of León, University of Leon, Campus de Vegazana, Leon, Spain
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49
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Charneca J, Matias AC, Escapa AL, Fernandes C, Alves A, Santos JMA, Nascimento R, Bragança J. Ectopic expression of CITED2 prior to reprogramming, promotes and homogenises the conversion of somatic cells into induced pluripotent stem cells. Exp Cell Res 2017; 358:290-300. [PMID: 28684114 DOI: 10.1016/j.yexcr.2017.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/28/2017] [Accepted: 07/01/2017] [Indexed: 02/07/2023]
Abstract
Cited2 plays crucial roles in mouse embryonic stem cells self-renewal, the initiation of the somatic reprogramming process into induced pluripotent stem cells (iPSC) and the suppression of cell senescence. Here, we investigated the potential of CITED2 expression in combination with the Oct4, Sox2, Klf4 and c-Myc factors for reprogramming of primary mouse embryonic fibroblasts (MEF) at passage 2 and 4. The ectopic CITED2 expression in primary MEF prior to the onset of the reprogramming process, generated iPSC with less variability in the expression of endogenous pluripotency-related genes. In contrast, part of the MEF reprogrammed without ectopic expression of CITED2 at passage 4 originated partially reprogrammed iPSC or pre-iPSC. However, the overexpression of CITED2 in the pre-iPSC was insufficient to complete the reprogramming process into iPSC. These results indicated that ectopic CITED2 expression at the onset of the reprogramming process in combination with the reprogramming factors promotes a complete and homogeneous conversion of somatic cells into iPSC.
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Affiliation(s)
- João Charneca
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Ana Catarina Matias
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Ana Luisa Escapa
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Catarina Fernandes
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - André Alves
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - João M A Santos
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Rita Nascimento
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - José Bragança
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal; ABC - Algarve Biomedical Centre, 8005-139 Faro, Portugal.
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50
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Low K, Wong LY, Maldonado M, Manjunath C, Horner CB, Perez M, Myung NV, Nam J. Physico-electrochemical Characterization of Pluripotent Stem Cells during Self-Renewal or Differentiation by a Multi-modal Monitoring System. Stem Cell Reports 2017; 8:1329-1339. [PMID: 28457888 PMCID: PMC5425683 DOI: 10.1016/j.stemcr.2017.03.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/27/2017] [Accepted: 03/28/2017] [Indexed: 01/14/2023] Open
Abstract
Monitoring pluripotent stem cell behaviors (self-renewal and differentiation to specific lineages/phenotypes) is critical for a fundamental understanding of stem cell biology and their translational applications. In this study, a multi-modal stem cell monitoring system was developed to quantitatively characterize physico-electrochemical changes of the cells in real time, in relation to cellular activities during self-renewal or lineage-specific differentiation, in a non-destructive, label-free manner. The system was validated by measuring physical (mass) and electrochemical (impedance) changes in human induced pluripotent stem cells undergoing self-renewal, or subjected to mesendodermal or ectodermal differentiation, and correlating them to morphological (size, shape) and biochemical changes (gene/protein expression). An equivalent circuit model was used to further dissect the electrochemical (resistive and capacitive) contributions of distinctive cellular features. Overall, the combination of the physico-electrochemical measurements and electrical circuit modeling collectively offers a means to longitudinally quantify the states of stem cell self-renewal and differentiation.
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Affiliation(s)
- Karen Low
- Department of Bioengineering, University of California-Riverside, Materials Science & Engineering Building 331, 900 University Avenue, Riverside, CA 92521, USA
| | - Lauren Y Wong
- Department of Bioengineering, University of California-Riverside, Materials Science & Engineering Building 331, 900 University Avenue, Riverside, CA 92521, USA
| | - Maricela Maldonado
- Department of Bioengineering, University of California-Riverside, Materials Science & Engineering Building 331, 900 University Avenue, Riverside, CA 92521, USA
| | - Chetas Manjunath
- Department of Bioengineering, University of California-Riverside, Materials Science & Engineering Building 331, 900 University Avenue, Riverside, CA 92521, USA
| | - Christopher B Horner
- Department of Bioengineering, University of California-Riverside, Materials Science & Engineering Building 331, 900 University Avenue, Riverside, CA 92521, USA
| | - Mark Perez
- Department of Bioengineering, University of California-Riverside, Materials Science & Engineering Building 331, 900 University Avenue, Riverside, CA 92521, USA
| | - Nosang V Myung
- Department of Chemical and Environmental Engineering, University of California-Riverside, Bourns Hall B355, 900 University Avenue, Riverside, CA 92521, USA
| | - Jin Nam
- Department of Bioengineering, University of California-Riverside, Materials Science & Engineering Building 331, 900 University Avenue, Riverside, CA 92521, USA.
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