1
|
Liu J, Kong G, Lu C, Wang J, Li W, Lv Z, Tong J, Liu Y, Xiong W, Li H, Fan J. IPSC-NSCs-derived exosomal let-7b-5p improves motor function after spinal cord Injury by modulating microglial/macrophage pyroptosis. J Nanobiotechnology 2024; 22:403. [PMID: 38982427 PMCID: PMC11232148 DOI: 10.1186/s12951-024-02697-w] [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: 02/14/2024] [Accepted: 07/03/2024] [Indexed: 07/11/2024] Open
Abstract
BACKGROUND Following spinal cord injury (SCI), the inflammatory storm initiated by microglia/macrophages poses a significant impediment to the recovery process. Exosomes play a crucial role in the transport of miRNAs, facilitating essential cellular communication through the transfer of genetic material. However, the miRNAs from iPSC-NSCs-Exos and their potential mechanisms leading to repair after SCI remain unclear. This study aims to explore the role of iPSC-NSCs-Exos in microglia/macrophage pyroptosis and reveal their potential mechanisms. METHODS iPSC-NSCs-Exos were characterized and identified using transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA), and Western blot. A mouse SCI model and a series of in vivo and in vitro experiments were conducted to investigate the therapeutic effects of iPSC-NSCs-Exos. Subsequently, miRNA microarray analysis and rescue experiments were performed to confirm the role of miRNAs in iPSC-NSCs-Exos in SCI. Mechanistic studies were carried out using Western blot, luciferase activity assays, and RNA-ChIP. RESULTS Our findings revealed that iPSC-NSCs-derived exosomes inhibited microglia/macrophage pyroptosis at 7 days post-SCI, maintaining myelin integrity and promoting axonal growth, ultimately improving mice motor function. The miRNA microarray showed let-7b-5p to be highly enriched in iPSC-NSCs-Exos, and LRIG3 was identified as the target gene of let-7b-5p. Through a series of rescue experiments, we uncovered the connection between iPSC-NSCs and microglia/macrophages, revealing a novel target for treating SCI. CONCLUSION In conclusion, we discovered that iPSC-NSCs-derived exosomes can package and deliver let-7b-5p, regulating the expression of LRIG3 to ameliorate microglia/macrophage pyroptosis and enhance motor function in mice after SCI. This highlights the potential of combined therapy with iPSC-NSCs-Exos and let-7b-5p in promoting functional recovery and limiting inflammation following SCI.
Collapse
Affiliation(s)
- Jie Liu
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China
| | - Guang Kong
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chenlin Lu
- Department of Clinical Research Center, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
| | - Juan Wang
- Department of human anatomy, School of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wenbo Li
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China
| | - Zhengming Lv
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
| | - Jian Tong
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
| | - Yuan Liu
- Songjiang Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wu Xiong
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China.
| | - Haijun Li
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China.
| | - Jin Fan
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China.
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China.
| |
Collapse
|
2
|
Subramaniam MD, Chirayath RB, Iyer M, Nair AP, Vellingiri B. Mesenchymal stem cells (MSCs) in Leber's hereditary optic neuropathy (LHON): a potential therapeutic approach for future. Int Ophthalmol 2022; 42:2949-2964. [PMID: 35357640 DOI: 10.1007/s10792-022-02267-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 03/12/2022] [Indexed: 12/21/2022]
Abstract
BACKGROUND Optic neuropathy has become a new typical syndromic multi-system disease that leads to optic atrophy. This review discusses potential treatments and advances of Leber's hereditary optic neuropathy (LHON), a sporadic genetic disorder. LHON is caused due to slight mutations in mitochondria leading to mitochondrial dysfunction, causing vision loss. There are no current significant treatments that have been proven to work for LHON. METHODS However, extensive review was carried out on capable studies that have shown potential treatment sensory systems and are being evaluated currently. Some of these studies are in clinical trials, whereas other ones are still being planned. Here, we focus more on treatment based on mesenchymal stem cells-mediated mitochondrial transfer via various techniques. We discuss different mitochondrial transfer modes and possible ways to understand the mitochondria transfer technique's phenotypic characteristics. CONCLUSION It is clearly understood that transfer of healthy mitochondria from MSC to target cell would regulate the range of reactive oxygen species and ATP'S, which are majorly responsible for mutation upon irregulating. Therefore, mitochondrial transfer is suggested and discussed in this review with various aspects. The graphical abstract represents different means of mitochondrial transport like (a) Tunnelling nanotubules, (b) Extracellular vesicles, (c) Cell fusion and (d) Gap junctions. In (a) Tunnelling nanotubules, the signalling pathways TNF- α/TNF αip2 and NFkB/TNF αep2 are responsible for forming tunnels. Also, Miro protein acts as cargo for the transport of mitochondria with myosin's help in the presence of RhoGTPases [35]. In (b) Extracellular vesicles, the RhoA ARF6 contributes to Actin/Cytoskeletal rearrangement leading to the shedding of microvesicles. Coming to (c) Cell fusion when there is a high amount of ATP, the cells tend to fuse when in close proximity leading to the transfer of mitochondria via EFF-1/HAP2 [48]. In (d) Gap Junctions, Connexin43 is responsible for the intracellular channel in the presence of more ATP [86].
Collapse
Affiliation(s)
- Mohana Devi Subramaniam
- SN ONGC Department of Genetics and Molecular Biology, Vision Research Foundation, Chennai, 600 006, India.
| | - Ruth Bright Chirayath
- SN ONGC Department of Genetics and Molecular Biology, Vision Research Foundation, Chennai, 600 006, India
| | - Mahalaxmi Iyer
- SN ONGC Department of Genetics and Molecular Biology, Vision Research Foundation, Chennai, 600 006, India
| | - Aswathy P Nair
- SN ONGC Department of Genetics and Molecular Biology, Vision Research Foundation, Chennai, 600 006, India
| | - Balachandar Vellingiri
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, India
| |
Collapse
|
3
|
Haase FD, Coorey B, Riley L, Cantrill LC, Tam PPL, Gold WA. Pre-clinical Investigation of Rett Syndrome Using Human Stem Cell-Based Disease Models. Front Neurosci 2021; 15:698812. [PMID: 34512241 PMCID: PMC8423999 DOI: 10.3389/fnins.2021.698812] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/19/2021] [Indexed: 01/02/2023] Open
Abstract
Rett syndrome (RTT) is an X-linked neurodevelopmental disorder, mostly caused by mutations in MECP2. The disorder mainly affects girls and it is associated with severe cognitive and physical disabilities. Modeling RTT in neural and glial cell cultures and brain organoids derived from patient- or mutation-specific human induced pluripotent stem cells (iPSCs) has advanced our understanding of the pathogenesis of RTT, such as disease-causing mechanisms, disease progression, and cellular and molecular pathology enabling the identification of actionable therapeutic targets. Brain organoid models that recapitulate much of the tissue architecture and the complexity of cell types in the developing brain, offer further unprecedented opportunity for elucidating human neural development, without resorting to conventional animal models and the limited resource of human neural tissues. This review focuses on the new knowledge of RTT that has been gleaned from the iPSC-based models as well as limitations of the models and strategies to refine organoid technology in the quest for clinically relevant disease models for RTT and the broader spectrum of neurodevelopmental disorders.
Collapse
Affiliation(s)
- Florencia D. Haase
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Kids Neuroscience Centre, Kids Research, Children’s Hospital at Westmead, Westmead, NSW, Australia
- Molecular Neurobiology Research Laboratory, Kids Research, Children’s Hospital at Westmead, and Children’s Medical Research Institute, Westmead, NSW, Australia
| | - Bronte Coorey
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Kids Neuroscience Centre, Kids Research, Children’s Hospital at Westmead, Westmead, NSW, Australia
- Molecular Neurobiology Research Laboratory, Kids Research, Children’s Hospital at Westmead, and Children’s Medical Research Institute, Westmead, NSW, Australia
| | - Lisa Riley
- Rare Diseases Functional Genomics Laboratory, Kids Research, Children’s Hospital at Westmead, and Children’s Medical Research Institute, Westmead, NSW, Australia
| | - Laurence C. Cantrill
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Kids Research, Children’s Hospital at Westmead, Westmead, NSW, Australia
| | - Patrick P. L. Tam
- Embryology Research Unit, Children’s Medical Research Institute, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Wendy A. Gold
- Kids Neuroscience Centre, Kids Research, Children’s Hospital at Westmead, Westmead, NSW, Australia
- Molecular Neurobiology Research Laboratory, Kids Research, Children’s Hospital at Westmead, and Children’s Medical Research Institute, Westmead, NSW, Australia
- Rare Diseases Functional Genomics Laboratory, Kids Research, Children’s Hospital at Westmead, and Children’s Medical Research Institute, Westmead, NSW, Australia
| |
Collapse
|
4
|
Iacovitti L. On the Road from Phenotypic Plasticity to Stem Cell Therapy. J Neurosci 2021; 41:5331-5337. [PMID: 33958488 PMCID: PMC8221603 DOI: 10.1523/jneurosci.0340-21.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/18/2021] [Accepted: 04/27/2021] [Indexed: 11/21/2022] Open
Abstract
In 1981, I published a paper in the first issue of The Journal of Neuroscience with my postdoctoral mentor, Richard Bunge. At that time, the long-standing belief that each neuron expressed only one neurotransmitter, known as Dale's Principle (Dale, 1935), was being hotly debated following a report by French embryologist Nicole Le Douarin showing that neural crest cells destined for one transmitter phenotype could express characteristics of another if transplanted to alternate sites in the developing embryo (Le Douarin, 1980). In the Bunge laboratory, we were able to more directly test the question of phenotypic plasticity in the controlled environment of the tissue culture dish. Thus, in our paper, we grew autonomic catecholaminergic neurons in culture under conditions which promoted the acquisition of cholinergic traits and showed that cells did not abandon their inherited phenotype to adopt a new one but instead were capable of dual transmitter expression. In this Progressions article, I detail the path that led to these findings and how this study impacted the direction I followed for the next 40 years. This is my journey from phenotypic plasticity to the promise of a stem cell therapy.
Collapse
Affiliation(s)
- Lorraine Iacovitti
- Department of Neuroscience, Director, Jefferson Stem Cell and Regenerative Neuroscience Center, Vickie and Jack Farber Institute for Neuroscience, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| |
Collapse
|
5
|
Reprogramming Restores Vision in Mice by Changing DNA Methylation. Neurosci Bull 2021; 37:1526-1528. [PMID: 34097224 DOI: 10.1007/s12264-021-00729-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 03/21/2021] [Indexed: 10/21/2022] Open
|
6
|
Lee K, Park TIH, Heppner P, Schweder P, Mee EW, Dragunow M, Montgomery JM. Human in vitro systems for examining synaptic function and plasticity in the brain. J Neurophysiol 2020; 123:945-965. [PMID: 31995449 DOI: 10.1152/jn.00411.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The human brain shows remarkable complexity in its cellular makeup and function, which are distinct from nonhuman species, signifying the need for human-based research platforms for the study of human cellular neurophysiology and neuropathology. However, the use of adult human brain tissue for research purposes is hampered by technical, methodological, and accessibility challenges. One of the major problems is the limited number of in vitro systems that, in contrast, are readily available from rodent brain tissue. With recent advances in the optimization of protocols for adult human brain preparations, there is a significant opportunity for neuroscientists to validate their findings in human-based systems. This review addresses the methodological aspects, advantages, and disadvantages of human neuron in vitro systems, focusing on the unique properties of human neurons and synapses in neocortical microcircuits. These in vitro models provide the incomparable advantage of being a direct representation of the neurons that have formed part of the human brain until the point of recording, which cannot be replicated by animal models nor human stem-cell systems. Important distinct cellular mechanisms are observed in human neurons that may underlie the higher order cognitive abilities of the human brain. The use of human brain tissue in neuroscience research also raises important ethical, diversity, and control tissue limitations that need to be considered. Undoubtedly however, these human neuron systems provide critical information to increase the potential of translation of treatments from the laboratory to the clinic in a way animal models are failing to provide.
Collapse
Affiliation(s)
- Kevin Lee
- Department of Physiology, University of Auckland, Auckland, New Zealand.,Centre for Brain Research, University of Auckland, New Zealand
| | - Thomas I-H Park
- Centre for Brain Research, University of Auckland, New Zealand.,Department of Pharmacology, University of Auckland, Auckland, New Zealand
| | - Peter Heppner
- Centre for Brain Research, University of Auckland, New Zealand.,Department of Neurosurgery, Auckland City Hospital, Auckland, New Zealand
| | - Patrick Schweder
- Centre for Brain Research, University of Auckland, New Zealand.,Department of Neurosurgery, Auckland City Hospital, Auckland, New Zealand
| | - Edward W Mee
- Centre for Brain Research, University of Auckland, New Zealand.,Department of Neurosurgery, Auckland City Hospital, Auckland, New Zealand
| | - Michael Dragunow
- Centre for Brain Research, University of Auckland, New Zealand.,Department of Pharmacology, University of Auckland, Auckland, New Zealand
| | - Johanna M Montgomery
- Department of Physiology, University of Auckland, Auckland, New Zealand.,Centre for Brain Research, University of Auckland, New Zealand
| |
Collapse
|
7
|
Castillo X, Castro-Obregón S, Gutiérrez-Becker B, Gutiérrez-Ospina G, Karalis N, Khalil AA, Lopez-Noguerola JS, Rodríguez LL, Martínez-Martínez E, Perez-Cruz C, Pérez-Velázquez J, Piña AL, Rubio K, García HPS, Syeda T, Vanoye-Carlo A, Villringer A, Winek K, Zille M. Re-thinking the Etiological Framework of Neurodegeneration. Front Neurosci 2019; 13:728. [PMID: 31396030 PMCID: PMC6667555 DOI: 10.3389/fnins.2019.00728] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 06/28/2019] [Indexed: 02/06/2023] Open
Abstract
Neurodegenerative diseases are among the leading causes of disability and death worldwide. The disease-related socioeconomic burden is expected to increase with the steadily increasing life expectancy. In spite of decades of clinical and basic research, most strategies designed to manage degenerative brain diseases are palliative. This is not surprising as neurodegeneration progresses "silently" for decades before symptoms are noticed. Importantly, conceptual models with heuristic value used to study neurodegeneration have been constructed retrospectively, based on signs and symptoms already present in affected patients; a circumstance that may confound causes and consequences. Hence, innovative, paradigm-shifting views of the etiology of these diseases are necessary to enable their timely prevention and treatment. Here, we outline four alternative views, not mutually exclusive, on different etiological paths toward neurodegeneration. First, we propose neurodegeneration as being a secondary outcome of a primary cardiovascular cause with vascular pathology disrupting the vital homeostatic interactions between the vasculature and the brain, resulting in cognitive impairment, dementia, and cerebrovascular events such as stroke. Second, we suggest that the persistence of senescent cells in neuronal circuits may favor, together with systemic metabolic diseases, neurodegeneration to occur. Third, we argue that neurodegeneration may start in response to altered body and brain trophic interactions established via the hardwire that connects peripheral targets with central neuronal structures or by means of extracellular vesicle (EV)-mediated communication. Lastly, we elaborate on how lifespan body dysbiosis may be linked to the origin of neurodegeneration. We highlight the existence of bacterial products that modulate the gut-brain axis causing neuroinflammation and neuronal dysfunction. As a concluding section, we end by recommending research avenues to investigate these etiological paths in the future. We think that this requires an integrated, interdisciplinary conceptual research approach based on the investigation of the multimodal aspects of physiology and pathophysiology. It involves utilizing proper conceptual models, experimental animal units, and identifying currently unused opportunities derived from human data. Overall, the proposed etiological paths and experimental recommendations will be important guidelines for future cross-discipline research to overcome the translational roadblock and to develop causative treatments for neurodegenerative diseases.
Collapse
Affiliation(s)
- Ximena Castillo
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Mexico City, Mexico
- Institute of Neurobiology, University of Puerto Rico, San Juan, PR, United States
| | - Susana Castro-Obregón
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Benjamin Gutiérrez-Becker
- Artificial Intelligence in Medical Imaging KJP, Ludwig Maximilian University of Munich, Munich, Germany
| | - Gabriel Gutiérrez-Ospina
- Laboratorio de Biología de Sistemas, Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas y Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Nikolaos Karalis
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | - Ahmed A. Khalil
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | | | - Liliana Lozano Rodríguez
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Eduardo Martínez-Martínez
- Cell Communication & Extracellular Vesicles Laboratory, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Claudia Perez-Cruz
- National Polytechnic Institute, Center of Research in Advanced Studies, Mexico City, Mexico
| | - Judith Pérez-Velázquez
- Departamento de Matemáticas y Mecánica, Instituto de Investigaciones en Matemáticas Aplicadas y Sistemas, Universidad Nacional Autónoma de México, Mexico City, Mexico
- Mathematische Modellierung Biologischer Systeme, Fakultät für Mathematik, Technische Universität München, Munich, Germany
| | - Ana Luisa Piña
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Karla Rubio
- Lung Cancer Epigenetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | | | - Tauqeerunnisa Syeda
- National Polytechnic Institute, Center of Research in Advanced Studies, Mexico City, Mexico
| | - America Vanoye-Carlo
- Laboratorio de Neurociencias, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, Mexico
| | - Arno Villringer
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Katarzyna Winek
- The Shimon Peres Postdoctoral Fellow at the Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Marietta Zille
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
- Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany
- Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Lübeck, Germany
| |
Collapse
|
8
|
Taylor DL, Gough A, Schurdak ME, Vernetti L, Chennubhotla CS, Lefever D, Pei F, Faeder JR, Lezon TR, Stern AM, Bahar I. Harnessing Human Microphysiology Systems as Key Experimental Models for Quantitative Systems Pharmacology. Handb Exp Pharmacol 2019; 260:327-367. [PMID: 31201557 PMCID: PMC6911651 DOI: 10.1007/164_2019_239] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Two technologies that have emerged in the last decade offer a new paradigm for modern pharmacology, as well as drug discovery and development. Quantitative systems pharmacology (QSP) is a complementary approach to traditional, target-centric pharmacology and drug discovery and is based on an iterative application of computational and systems biology methods with multiscale experimental methods, both of which include models of ADME-Tox and disease. QSP has emerged as a new approach due to the low efficiency of success in developing therapeutics based on the existing target-centric paradigm. Likewise, human microphysiology systems (MPS) are experimental models complementary to existing animal models and are based on the use of human primary cells, adult stem cells, and/or induced pluripotent stem cells (iPSCs) to mimic human tissues and organ functions/structures involved in disease and ADME-Tox. Human MPS experimental models have been developed to address the relatively low concordance of human disease and ADME-Tox with engineered, experimental animal models of disease. The integration of the QSP paradigm with the use of human MPS has the potential to enhance the process of drug discovery and development.
Collapse
Affiliation(s)
- D Lansing Taylor
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA.
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Albert Gough
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mark E Schurdak
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lawrence Vernetti
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Chakra S Chennubhotla
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Daniel Lefever
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
| | - Fen Pei
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - James R Faeder
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Timothy R Lezon
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Andrew M Stern
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ivet Bahar
- University of Pittsburgh Drug Discovery Institute, Pittsburgh, PA, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| |
Collapse
|
9
|
Novel Epigenetic Techniques Provided by the CRISPR/Cas9 System. Stem Cells Int 2018; 2018:7834175. [PMID: 30123293 PMCID: PMC6079388 DOI: 10.1155/2018/7834175] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 02/04/2018] [Accepted: 03/27/2018] [Indexed: 12/26/2022] Open
Abstract
Epigenetics classically refers to the inheritable changes of hereditary information without perturbing DNA sequences. Understanding mechanisms of how epigenetic factors contribute to inheritable phenotype changes and cell identity will pave the way for us to understand diverse biological processes. In recent years, the emergence of CRISPR/Cas9 technology has provided us with new routes to the epigenetic field. In this review, novel epigenetic techniques utilizing the CRISPR/Cas9 system are the main contents to be discussed, including epigenome editing, temporal and spatial control of epigenetic effectors, noncoding RNA manipulation, chromatin in vivo imaging, and epigenetic element screening.
Collapse
|
10
|
Kantawong F, Saksiriwisitkul C, Riyapa C, Limpakdee S, Wanachantararak P, Kuboki T. Reprogramming of mouse fibroblasts into neural lineage cells using biomaterials. ACTA ACUST UNITED AC 2018; 8:129-138. [PMID: 29977834 PMCID: PMC6026523 DOI: 10.15171/bi.2018.15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 12/30/2017] [Accepted: 01/04/2018] [Indexed: 11/24/2022]
Abstract
![]()
Introduction: Induced neural stem cells (iNSCs) have the ability of differentiation into neurons, astrocytes and oligodendrocytes. iNSCs are very useful in terms of research and treatment. The present study offers an idea that biomaterials could be one of the tools that could modulate reprogramming process in the fibroblasts.
Methods: Gelatin biomaterials were fabricated into 3 types, including (i) gelatin, (ii) gelatin with 1 mg/mL hydroxyapatite, and (iii) gelatin with hydroxyapatite and pig brain. NIH/3T3 fibroblasts were cultured on each type of biomaterial for 7, 9 and 14 days. RT-PCR was performed to investigate the gene expression of the fibroblasts on biomaterials compared to the fibroblasts on tissue culture plates. PI3K/Akt signaling was performed by flow cytometry after 24 hours seeding on the biomaterials. The biomaterials were also tested with the human APCs and PDL cells.
Results: The fibroblasts exhibited changes in the expression of the reprogramming factor; Klf4 and the neural transcription factors; NFIa, NFIb and Ptbp1 after 9 days culture. The cultivation of fibroblasts on the biomaterials for 7 days showed a higher expression of the transcription factor SOX9. The expression of epigenetic genes; Kat2a and HDAC3 were changed upon the cultivation on the biomaterials for 9 days. The fibroblasts cultured on the biomaterials showed an activation of PI3K/Akt signaling. The human APCs and human PDL cells developed mineralization process on biomaterials
Conclusion: Changes in the expression of Klf4, NFIa, NFIb, Ptbp1 and SOX9 indicated that fibroblasts were differentiated into an astrocytic lineage. It is possible that the well-designed biomaterials could work as powerful tools in the reprogramming process of fibroblasts into iNSCs.
Collapse
Affiliation(s)
- Fahsai Kantawong
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Chanidapa Saksiriwisitkul
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Chanakan Riyapa
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Suchalinee Limpakdee
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | | | - Thasaneeya Kuboki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, Japan
| |
Collapse
|
11
|
Yener Ilce B, Cagin U, Yilmazer A. Cellular reprogramming: A new way to understand aging mechanisms. WILEY INTERDISCIPLINARY REVIEWS-DEVELOPMENTAL BIOLOGY 2018; 7. [PMID: 29350802 DOI: 10.1002/wdev.308] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/29/2017] [Accepted: 10/13/2017] [Indexed: 12/11/2022]
Abstract
Increased life expectancy, due to the rise in life quality and the decline in mortality rates, is leading to a society in which the population aged 60 and over is growing more rapidly than the entire population. Although various models and model organisms have been employed to investigate the mechanism of aging, induced pluripotent stem cells (iPSCs) are useful candidates to study human aging and age-related human diseases. This work discusses how iPSCs can be used as an alternative to the model organisms such as yeast, Caenorhabditis elegans, Drosophila melanogaster, or the mouse. The main focus is the reprogramming technology of somatic cells which is thought to provide an important perspective for rejuvenation strategies. The effects and relationships between aging and cell reprogramming are discussed, and studies related to aging and cell reprogramming are critically reviewed. We believe that for future studies, different parameters and detailed quantitative experiments should be performed in order to clearly understand the effect of aging on human cell reprogramming with respect to programming efficiency and differentiation capacity. This way, new insights will be provided to prevent or even reverse the aging process. WIREs Dev Biol 2018, 7:e308. doi: 10.1002/wdev.308 This article is categorized under: Adult Stem Cells, Tissue Renewal, and Regeneration > Stem Cells and Aging Adult Stem Cells, Tissue Renewal, and Regeneration > Regeneration Adult Stem Cells, Tissue Renewal, and Regeneration > Stem Cells and Disease.
Collapse
Affiliation(s)
| | | | - Acelya Yilmazer
- Biomedical Engineering Department, Engineering Faculty, Ankara University, Ankara, Turkey.,Stem Cell Institute, Ankara University, Ankara, Turkey
| |
Collapse
|
12
|
Hofrichter M, Nimtz L, Tigges J, Kabiri Y, Schröter F, Royer-Pokora B, Hildebrandt B, Schmuck M, Epanchintsev A, Theiss S, Adjaye J, Egly JM, Krutmann J, Fritsche E. Comparative performance analysis of human iPSC-derived and primary neural progenitor cells (NPC) grown as neurospheres in vitro. Stem Cell Res 2017; 25:72-82. [PMID: 29112887 DOI: 10.1016/j.scr.2017.10.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 10/17/2017] [Accepted: 10/23/2017] [Indexed: 02/07/2023] Open
Abstract
Developmental neurotoxicity (DNT) testing performed in rats is resource-intensive (costs, time, animals) and bears the issue of species extrapolation. Thus, reliable alternative human-based approaches are needed for predicting neurodevelopmental toxicity. Human induced pluripotent stem cells (hiPSCs) represent a basis for an alternative method possibly being part of an alternative DNT testing strategy. Here, we compared two hiPSC neural induction protocols resulting in 3D neurospheres: one using noggin and one cultivating cells in neural induction medium (NIM protocol). Performance of Nestin+/SOX2+ hiPSC-derived neural progenitor cells (NPCs) was compared to primary human NPCs. Generally, primary hNPCs first differentiate into Nestin+ and/or GFAP+ radial glia-like cells, while the hiPSC-derived NPCs (hiPSC-NPC) first differentiate into βIII-Tubulin+ neurons suggesting an earlier developmental stage of hiPSC-NPC. In the 'Neurosphere Assay', NIM generated hiPSC-NPC produced neurons with higher performance than with the noggin protocol. After long-term differentiation, hiPSC-NPC form neuronal networks, which become electrically active on microelectrode arrays after 85days. Finally, methylmercury chloride inhibits hiPSC-NPC and hNPC migration with similar potencies. hiPSC-NPCs-derived neurospheres seem to be useful for DNT evaluation representing early neural development in vitro. More system characterization by compound testing is needed to gain higher confidence in this method.
Collapse
Affiliation(s)
- Maxi Hofrichter
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Laura Nimtz
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Julia Tigges
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Yaschar Kabiri
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Friederike Schröter
- Institute for Stem Cell Research & Regenerative Medicine, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - Brigitte Royer-Pokora
- Institute of Human Genetics, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
| | - Barbara Hildebrandt
- Institute of Human Genetics, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
| | - Martin Schmuck
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Alexey Epanchintsev
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire: IGBMC, Centre National de la Recherche Scientifique, INSERUM, Université de Strasbourg, Strasbourg, France
| | - Stephan Theiss
- Institute of clinical neuroscience and medical psychology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - James Adjaye
- Institute for Stem Cell Research & Regenerative Medicine, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - Jean-Marc Egly
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire: IGBMC, Centre National de la Recherche Scientifique, INSERUM, Université de Strasbourg, Strasbourg, France
| | - Jean Krutmann
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany; Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Ellen Fritsche
- IUF-Leibniz Research Institute for Environmental Medicine, Duesseldorf, Germany; Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.
| |
Collapse
|
13
|
Shukla V, Rao M, Zhang H, Beers J, Wangsa D, Wangsa D, Buishand FO, Wang Y, Yu Z, Stevenson HS, Reardon ES, McLoughlin KC, Kaufman AS, Payabyab EC, Hong JA, Zhang M, Davis S, Edelman D, Chen G, Miettinen MM, Restifo NP, Ried T, Meltzer PA, Schrump DS. ASXL3 Is a Novel Pluripotency Factor in Human Respiratory Epithelial Cells and a Potential Therapeutic Target in Small Cell Lung Cancer. Cancer Res 2017; 77:6267-6281. [PMID: 28935813 DOI: 10.1158/0008-5472.can-17-0570] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/28/2017] [Accepted: 09/07/2017] [Indexed: 01/16/2023]
Abstract
In this study, we generated induced pluripotent stem cells (iPSC) from normal human small airway epithelial cells (SAEC) to investigate epigenetic mechanisms of stemness and pluripotency in lung cancers. We documented key hallmarks of reprogramming in lung iPSCs (Lu-iPSC) that coincided with modulation of more than 15,000 genes relative to parental SAECs. Of particular novelty, we identified the PRC2-associated protein, ASXL3, which was markedly upregulated in Lu-iPSCs and small cell lung cancer (SCLC) lines and clinical specimens. ASXL3 overexpression correlated with increased genomic copy number in SCLC lines. ASXL3 silencing inhibited proliferation, clonogenicity, and teratoma formation by Lu-iPSCs, and diminished clonogenicity and malignant growth of SCLC cells in vivo Collectively, our studies validate the utility of the Lu-iPSC model for elucidating epigenetic mechanisms contributing to pulmonary carcinogenesis and highlight ASXL3 as a novel candidate target for SCLC therapy. Cancer Res; 77(22); 6267-81. ©2017 AACR.
Collapse
Affiliation(s)
- Vivek Shukla
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Mahadev Rao
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Hongen Zhang
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Darawalee Wangsa
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Danny Wangsa
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Yonghong Wang
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Zhiya Yu
- Laboratory of Pathology, Center for Cancer Research, NCI, Rockville, Maryland
| | - Holly S Stevenson
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Emily S Reardon
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Kaitlin C McLoughlin
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Andrew S Kaufman
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Eden C Payabyab
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Julie A Hong
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Mary Zhang
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Sean Davis
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Daniel Edelman
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Markku M Miettinen
- Laboratory of Pathology, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Thomas Ried
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Paul A Meltzer
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - David S Schrump
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland.
| |
Collapse
|
14
|
Devine H, Patani R. The translational potential of human induced pluripotent stem cells for clinical neurology : The translational potential of hiPSCs in neurology. Cell Biol Toxicol 2016; 33:129-144. [PMID: 27915387 PMCID: PMC5325844 DOI: 10.1007/s10565-016-9372-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/18/2016] [Indexed: 12/14/2022]
Abstract
The induced pluripotent state represents a decade-old Nobel prize-winning discovery. Human-induced pluripotent stem cells (hiPSCs) are generated by the nuclear reprogramming of any somatic cell using a variety of established but evolving methods. This approach offers medical science unparalleled experimental opportunity to model an individual patient’s disease “in a dish.” HiPSCs permit developmentally rationalized directed differentiation into any cell type, which express donor cell mutation(s) at pathophysiological levels and thus hold considerable potential for disease modeling, drug discovery, and potentially cell-based therapies. This review will focus on the translational potential of hiPSCs in clinical neurology and the importance of integrating this approach with complementary model systems to increase the translational yield of preclinical testing for the benefit of patients. This strategy is particularly important given the expected increase in prevalence of neurodegenerative disease, which poses a major burden to global health over the coming decades.
Collapse
Affiliation(s)
- Helen Devine
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, WC1N3BG, UK.,Sobell Department of Motor Neuroscience and Movement Disorders, UCL Institute of Neurology, Queen Square, London, UK
| | - Rickie Patani
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, WC1N3BG, UK. .,National Hospital for Neurology and Neurosurgery, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK. .,Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK. .,Euan MacDonald Centre for MND, University of Edinburgh, Edinburgh, UK.
| |
Collapse
|