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Tan Z, Qin S, Liu H, Huang X, Pu Y, He C, Yuan Y, Su Z. Small molecules reprogram reactive astrocytes into neuronal cells in the injured adult spinal cord. J Adv Res 2024; 59:111-127. [PMID: 37380102 PMCID: PMC11081968 DOI: 10.1016/j.jare.2023.06.013] [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: 01/24/2023] [Revised: 06/23/2023] [Accepted: 06/25/2023] [Indexed: 06/30/2023] Open
Abstract
INTRODUCTION Ectopic expression of transcription factor-mediated in vivo neuronal reprogramming provides promising strategy to compensate for neuronal loss, while its further clinical application may be hindered by delivery and safety concerns. As a novel and attractive alternative, small molecules may offer a non-viral and non-integrative chemical approach for reprogramming cell fates. Recent definitive evidences have shown that small molecules can convert non-neuronal cells into neurons in vitro. However, whether small molecules alone can induce neuronal reprogramming in vivo remains largely unknown. OBJECTIVES To identify chemical compounds that can induce in vivo neuronal reprogramming in the adult spinal cord. METHODS Immunocytochemistry, immunohistochemistry, qRT-PCR and fate-mapping are performed to analyze the role of small molecules in reprogramming astrocytes into neuronal cells in vitro and in vivo. RESULTS By screening, we identify a chemical cocktail with only two chemical compounds that can directly and rapidly reprogram cultured astrocytes into neuronal cells. Importantly, this chemical cocktail can also successfully trigger neuronal reprogramming in the injured adult spinal cord without introducing exogenous genetic factors. These chemically induced cells showed typical neuronal morphologies and neuron-specific marker expression and could become mature and survive for more than 12 months. Lineage tracing indicated that the chemical compound-converted neuronal cells mainly originated from post-injury spinal reactive astrocytes. CONCLUSION Our proof-of-principle study demonstrates that in vivo glia-to-neuron conversion can be manipulated in a chemical compound-based manner. Albeit our current chemical cocktail has a lowreprogramming efficiency, it will bring in vivo cell fate reprogramming closer to clinical application in brain and spinal cord repair. Future studies should focus on further refining our chemical cocktail and reprogramming approach to boost the reprogramming efficiency.
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Affiliation(s)
- Zijian Tan
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China
| | - Shangyao Qin
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China
| | - Hong Liu
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China
| | - Xiao Huang
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China
| | - Yingyan Pu
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China
| | - Cheng He
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China
| | - Yimin Yuan
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China.
| | - Zhida Su
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and the Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai 200433, China.
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Liu S, Zhang Y, Luo Y, Liu J. Traditional and emerging strategies using hepatocytes for pancreatic regenerative medicine. J Diabetes 2024; 16:e13545. [PMID: 38599852 PMCID: PMC11006621 DOI: 10.1111/1753-0407.13545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 01/23/2024] [Accepted: 02/04/2024] [Indexed: 04/12/2024] Open
Abstract
Although pancreas and islet cell transplantation are the only ways to prevent the late complications of insulin-dependent diabetes, a shortage of donors is a major obstacle to tissue and organ transplantation. Stem cell therapy is an effective treatment for diabetes and other pancreatic-related diseases, which can be achieved by inducing their differentiation into insulin-secreting cells. The liver is considered an ideal source of pancreatic cells due to its similar developmental origin and strong regenerative ability as the pancreas. This article reviews the traditional and emerging strategies using hepatocytes for pancreatic regenerative medicine and evaluates their advantages and challenges. Gene reprogramming and chemical reprogramming technologies are traditional strategies with potential to improve the efficiency and specificity of cell reprogramming and promote the transformation of hepatocytes into islet cells. At the same time, organoid technology, as an emerging strategy, has received extensive attention. Biomaterials provide a three-dimensional culture microenvironment for cells, which helps improve cell survival and differentiation efficiency. In addition, clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 gene editing technology has brought new opportunities and challenges to the development of organoid technology.
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Affiliation(s)
- Shuang Liu
- Department of Metabolism and Endocrinology, the Second Affiliated Hospital, Jiangxi Medical CollegeNanchang UniversityNanchangChina
| | - YuYing Zhang
- Department of Metabolism and Endocrinology, the Second Affiliated Hospital, Jiangxi Medical CollegeNanchang UniversityNanchangChina
| | - YunFei Luo
- Department of Metabolism and Endocrinology, the Second Affiliated Hospital, Jiangxi Medical CollegeNanchang UniversityNanchangChina
| | - JianPing Liu
- Department of Metabolism and Endocrinology, the Second Affiliated Hospital, Jiangxi Medical CollegeNanchang UniversityNanchangChina
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Hernandez-Benitez R, Wang C, Shi L, Ouchi Y, Zhong C, Hishida T, Liao HK, Magill EA, Memczak S, Soligalla RD, Fresia C, Hatanaka F, Lamas V, Guillen I, Sahu S, Yamamoto M, Shao Y, Aguirre-Vazquez A, Nuñez Delicado E, Guillen P, Rodriguez Esteban C, Qu J, Reddy P, Horvath S, Liu GH, Magistretti P, Izpisua Belmonte JC. Intervention with metabolites emulating endogenous cell transitions accelerates muscle regeneration in young and aged mice. Cell Rep Med 2024; 5:101449. [PMID: 38508141 PMCID: PMC10983034 DOI: 10.1016/j.xcrm.2024.101449] [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: 05/24/2022] [Revised: 10/10/2023] [Accepted: 02/08/2024] [Indexed: 03/22/2024]
Abstract
Tissue regeneration following an injury requires dynamic cell-state transitions that allow for establishing the cell identities required for the restoration of tissue homeostasis and function. Here, we present a biochemical intervention that induces an intermediate cell state mirroring a transition identified during normal differentiation of myoblasts and other multipotent and pluripotent cells to mature cells. When applied in somatic differentiated cells, the intervention, composed of one-carbon metabolites, reduces some dedifferentiation markers without losing the lineage identity, thus inducing limited reprogramming into a more flexible cell state. Moreover, the intervention enabled accelerated repair after muscle injury in young and aged mice. Overall, our study uncovers a conserved biochemical transitional phase that enhances cellular plasticity in vivo and hints at potential and scalable biochemical interventions of use in regenerative medicine and rejuvenation interventions that may be more tractable than genetic ones.
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Affiliation(s)
- Reyna Hernandez-Benitez
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Altos Labs, Inc., San Diego, CA 92121, USA
| | - Chao Wang
- Altos Labs, Inc., San Diego, CA 92121, USA
| | - Lei Shi
- Key Laboratory of Genetic Evolution & Animal Models, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Yasuo Ouchi
- Altos Labs, Inc., San Diego, CA 92121, USA; Department of Regenerative Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | | | - Tomoaki Hishida
- Laboratory of Biological Chemistry, School of Pharmaceutical Sciences, Wakayama Medical University, 25-1 Shichibancho, Wakayama 640-8156, Japan
| | - Hsin-Kai Liao
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Eric A Magill
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | | | - Rupa D Soligalla
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Chiara Fresia
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | | | | | | | | | | | | | | | - Estrella Nuñez Delicado
- Universidad Católica San Antonio de Murcia (UCAM), Campus de los Jerónimos, Nº 135 12, 30107 Guadalupe, Spain
| | | | | | - Jing Qu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | | | | | - Guang-Hui Liu
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Pierre Magistretti
- King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Juan Carlos Izpisua Belmonte
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Altos Labs, Inc., San Diego, CA 92121, USA.
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4
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Marzoog BA. Transcription Factors in Brain Regeneration: A Potential Novel Therapeutic Target. Curr Drug Targets 2024; 25:46-61. [PMID: 38444255 DOI: 10.2174/0113894501279977231210170231] [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: 08/30/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 03/07/2024]
Abstract
Transcription factors play a crucial role in providing identity to each cell population. To maintain cell identity, it is essential to balance the expression of activator and inhibitor transcription factors. Cell plasticity and reprogramming offer great potential for future therapeutic applications, as they can regenerate damaged tissue. Specific niche factors can modify gene expression and differentiate or transdifferentiate the target cell to the required fate. Ongoing research is being carried out on the possibilities of transcription factors in regenerating neurons, with neural stem cells (NSCs) being considered the preferred cells for generating new neurons due to their epigenomic and transcriptome memory. NEUROD1/ASCL1, BRN2, MYTL1, and other transcription factors can induce direct reprogramming of somatic cells, such as fibroblasts, into neurons. However, the molecular biology of transcription factors in reprogramming and differentiation still needs to be fully understood.
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Affiliation(s)
- Basheer Abdullah Marzoog
- World-Class Research Center, Digital Biodesign and Personalized Healthcare», I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
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Avila J. Delaying Brain Aging or Decreasing Tau Levels as Strategies to Prevent Alzheimer's Disease: In Memoriam of Mark A. Smith. J Alzheimers Dis 2024; 100:S265-S270. [PMID: 39058443 DOI: 10.3233/jad-240500] [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] [Indexed: 07/28/2024]
Abstract
Aging is the main risk for neurodegenerative disorders like Alzheimer's disease. In this short review, I will comment on how delaying brain aging through the addition of Yamanaka Factors or small compounds that bind to the folate receptor alpha, which promote the expression of the Yamanaka Factors or by the decrease tau levels in brain cells from older subjects could serve as strategies to prevent Alzheimer's disease.
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Affiliation(s)
- Jesús Avila
- Centro de Biologia Molecular Severo Ochoa, CSIC-UAM, Madrid, Spain
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6
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Wang J, Sun S, Deng H. Chemical reprogramming for cell fate manipulation: Methods, applications, and perspectives. Cell Stem Cell 2023; 30:1130-1147. [PMID: 37625410 DOI: 10.1016/j.stem.2023.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023]
Abstract
Chemical reprogramming offers an unprecedented opportunity to control somatic cell fate and generate desired cell types including pluripotent stem cells for applications in biomedicine in a precise, flexible, and controllable manner. Recent success in the chemical reprogramming of human somatic cells by activating a regeneration-like program provides an alternative way of producing stem cells for clinical translation. Likewise, chemical manipulation enables the capture of multiple (stem) cell states, ranging from totipotency to the stabilization of somatic fates in vitro. Here, we review progress in using chemical approaches for cell fate manipulation in addition to future opportunities in this promising field.
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Affiliation(s)
- Jinlin Wang
- MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center and the MOE Key Laboratory of Cell Proliferation and Differentiation, College of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - Shicheng Sun
- Changping Laboratory, 28 Life Science Park Road, Beijing, China; Murdoch Children's Research Institute, Royal Children's Hospital, Flemington Road, Parkville, VIC, Australia.
| | - Hongkui Deng
- MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center and the MOE Key Laboratory of Cell Proliferation and Differentiation, College of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; Changping Laboratory, 28 Life Science Park Road, Beijing, China.
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7
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Kang H, Hasselbeck S, Taškova K, Wang N, Oosten LNV, Mrowka R, Utikal J, Andrade-Navarro MA, Wang J, Wölfl S, Cheng X. Development of a next-generation endogenous OCT4 inducer and its anti-aging effect in vivo. Eur J Med Chem 2023; 257:115513. [PMID: 37253308 DOI: 10.1016/j.ejmech.2023.115513] [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: 03/24/2023] [Revised: 05/05/2023] [Accepted: 05/23/2023] [Indexed: 06/01/2023]
Abstract
The identification of small molecules capable of replacing transcription factors has been a longstanding challenge in the generation of human chemically induced pluripotent stem cells (iPSCs). Recent studies have shown that ectopic expression of OCT4, one of the master pluripotency regulators, compromised the developmental potential of resulting iPSCs, This highlights the importance of finding endogenous OCT4 inducers for the generation of clinical-grade human iPSCs. Through a cell-based high throughput screen, we have discovered several new OCT4-inducing compounds (O4Is). In this work, we prepared metabolically stable analogues, including O4I4, which activate endogenous OCT4 and associated signaling pathways in various cell lines. By combining these with a transcription factor cocktail consisting of SOX2, KLF4, MYC, and LIN28 (referred to as "CSKML") we achieved to reprogram human fibroblasts into a stable and authentic pluripotent state without the need for exogenous OCT4. In Caenorhabditis elegans and Drosophila, O4I4 extends lifespan, suggesting the potential application of OCT4-inducing compounds in regenerative medicine and rejuvenation therapy.
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Affiliation(s)
- Han Kang
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Germany
| | - Sebastian Hasselbeck
- Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt am Main, Germany
| | - Katerina Taškova
- Faculty of Biology, Johannes Gutenberg University Mainz, Germany
| | - Nessa Wang
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Germany
| | - Luuk N van Oosten
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Germany
| | - Ralf Mrowka
- Experimentelle Nephrologie, KIM III, Universitätsklinikum, Jena, Germany
| | - Jochen Utikal
- Skin Cancer Unit (G300), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Jichang Wang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Stefan Wölfl
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Germany
| | - Xinlai Cheng
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Germany; Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt am Main, Germany; Frankfurt Cancer Institute, Germany.
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8
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Damle EB, Morrison VE, Cioma J, Volic M, Bix GJ. Co-administration of extracellular matrix-based biomaterials with neural stem cell transplantation for treatment of central nervous system injury. Front Neurosci 2023; 17:1177040. [PMID: 37255752 PMCID: PMC10225608 DOI: 10.3389/fnins.2023.1177040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/28/2023] [Indexed: 06/01/2023] Open
Abstract
Injuries and disorders of the central nervous system (CNS) present a particularly difficult challenge for modern medicine to address, given the complex nature of the tissues, obstacles in researching and implementing therapies, and barriers to translating efficacious treatments into human patients. Recent advancements in neural stem cell (NSC) transplantation, endogenous neurogenesis, and in vivo reprogramming of non-neural cells into the neuronal lineage represent multiple approaches to resolving CNS injury. However, we propose that one practice that must be incorporated universally in neuroregeneration studies is the use of extracellular matrix (ECM)-mimicking biomaterials to supply the architectural support and cellular microenvironment necessary for partial or complete restoration of function. Through consideration of developmental processes including neurogenesis, cellular migration, and establishment of functional connectivity, as well as evaluation of process-specific interactions between cells and ECM components, insights can be gained to harness and modulate native and induced neurobiological processes to promote CNS tissue repair. Further, evaluation of the current landscape of regenerative medicine and tissue engineering techniques external to the neurosciences provides key perspectives into the role of the ECM in the use of stem cell-based therapies, and the potential directions future neuroregenerative approaches may take. If the most successful of these approaches achieve wide-spread adoption, innovative paired NSC-ECM strategies for neuroregeneration may become prominent in the near future, and with the rapid advances these techniques are poised to herald, a new era of treatment for CNS injury may dawn.
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Affiliation(s)
- Eshan B. Damle
- Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, LA, United States
- Tulane Brain Institute, Tulane University, New Orleans, LA, United States
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, United States
| | - Vivianne E. Morrison
- Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, LA, United States
| | - Jozef Cioma
- Faculty of Biology, Medicine, and Health, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
| | - Milla Volic
- Faculty of Biology, Medicine, and Health, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
| | - Gregory J. Bix
- Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, LA, United States
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Liuyang S, Wang G, Wang Y, He H, Lyu Y, Cheng L, Yang Z, Guan J, Fu Y, Zhu J, Zhong X, Sun S, Li C, Wang J, Deng H. Highly efficient and rapid generation of human pluripotent stem cells by chemical reprogramming. Cell Stem Cell 2023; 30:450-459.e9. [PMID: 36944335 DOI: 10.1016/j.stem.2023.02.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 01/17/2023] [Accepted: 02/22/2023] [Indexed: 03/23/2023]
Abstract
We recently demonstrated the chemical reprogramming of human somatic cells to pluripotent stem cells (hCiPSCs), which provides a robust approach for cell fate manipulation. However, the utility of this chemical approach is currently hampered by slow kinetics. Here, by screening for small molecule boosters and systematically optimizing the original condition, we have established a robust, chemically defined reprogramming protocol, which greatly shortens the induction time from ∼50 days to a minimum of 16 days and enables highly reproducible and efficient generation of hCiPSCs from all 17 tested donors. We found that this optimized protocol enabled a more direct reprogramming process by promoting cell proliferation and oxidative phosphorylation metabolic activities at the early stage. Our results highlight a distinct chemical reprogramming pathway that leads to a shortcut for the generation of human pluripotent stem cells, which represents a powerful strategy for human cell fate manipulation.
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Affiliation(s)
- Shijia Liuyang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Guan Wang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Yanglu Wang
- Academy for Advanced Interdisciplinary Studies, The Center for Biomed-X Research, Peking University, Beijing, China
| | - Huanjing He
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Yulin Lyu
- School of Life Sciences, Center for Bioinformatics, Center for Statistical Science, Peking University, Beijing, China
| | - Lin Cheng
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Zhihan Yang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Jingyang Guan
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Yao Fu
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Jialiang Zhu
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Xinxing Zhong
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Shicheng Sun
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Cheng Li
- School of Life Sciences, Center for Bioinformatics, Center for Statistical Science, Peking University, Beijing, China
| | - Jinlin Wang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
| | - Hongkui Deng
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China.
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Jiang K, Guo H, Zhai J. Interplay of phytohormones and epigenetic regulation: A recipe for plant development and plasticity. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:381-398. [PMID: 36223083 DOI: 10.1111/jipb.13384] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Both phytohormone signaling and epigenetic mechanisms have long been known to play crucial roles in plant development and plasticity in response to ambient stimuli. Indeed, diverse signaling pathways mediated by phytohormones and epigenetic processes integrate multiple upstream signals to regulate various plant traits. Emerging evidence indicates that phytohormones and epigenetic processes interact at multiple levels. In this review, we summarize the current knowledge of the interplay between phytohormones and epigenetic processes from the perspective of phytohormone biology. We also review chemical regulators used in epigenetic studies and propose strategies for developing novel regulators using multidisciplinary approaches.
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Affiliation(s)
- Kai Jiang
- Institute of Plant and Food Science, Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, School of Life Sciences, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Hongwei Guo
- Institute of Plant and Food Science, Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, School of Life Sciences, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Jixian Zhai
- Institute of Plant and Food Science, Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, School of Life Sciences, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
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Reprogramming neurons for regeneration: The fountain of youth. Prog Neurobiol 2022; 214:102284. [PMID: 35533809 DOI: 10.1016/j.pneurobio.2022.102284] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/03/2022] [Accepted: 05/02/2022] [Indexed: 01/22/2023]
Abstract
Neurons in the central nervous system (CNS) are terminally differentiated cells that gradually lose their ability to support regeneration during maturation due to changes in transcriptomic and chromatin landscape. Similar transcriptomic changes also occur during development when stem cells differentiate into different types of somatic cells. Importantly, differentiated cells can be reprogrammed back to induced pluripotent stems cells (iPSCs) via global epigenetic remodeling by combined overexpression of pluripotent reprogramming factors, including Oct4, Sox2, Klf4, c-Myc, Nanog, and/or Lin28. Moreover, recent findings showed that many proneural transcription factors were able to convert non-neural somatic cells into neurons bypassing the pluripotent stage via direct reprogramming. Interestingly, many of these factors have recently been identified as key regulators of CNS neural regeneration. Recent studies indicated that these factors could rejuvenate mature CNS neurons back to a younger state through cellular state reprogramming, thus favoring regeneration. Here we will review some recent findings regarding the roles of genetic cellular state reprogramming in regulation of neural regeneration and explore the potential underlying molecular mechanisms. Moreover, by using newly emerging techniques, such as multiomics sequencing with big data analysis and Crispr-based gene editing, we will discuss future research directions focusing on better revealing cellular state reprogramming-induced remodeling of chromatin landscape and potential translational application.
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12
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Yang Y, Li Q, Huang R, Xia H, Tang Y, Mai W, Liang J, Ma S, Chen D, Feng Y, Lei Y, Zhang Q, Huang Y. Small-Molecule-Driven Direct Reprogramming of Fibroblasts into Functional Sertoli-Like Cells as a Model for Male Reproductive Toxicology. Adv Biol (Weinh) 2022; 6:e2101184. [PMID: 35212192 DOI: 10.1002/adbi.202101184] [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: 09/15/2021] [Revised: 01/13/2022] [Indexed: 01/27/2023]
Abstract
Sertoli cells (SCs) are vital to providing morphological and nutritional support for spermatogenesis. Defects in SCs often lead to infertility. SCs transplantation is a promising potential strategy to compensate for SC dysfunction. However, isolation of SCs from testes is impractical due to obvious and ethical limitations. Here, a molecular cocktail is identified comprising of pan-BET family inhibitor (I-BET151), retinoic acid, and riluzole that enables the efficient conversion of fibroblasts into functional Sertoli-like cells (CiSCs). The gene expression profiles of CiSCs resemble those of mature SCs and exhibit functional properties such as the formation of testicular seminiferous tubules, engulfment of apoptotic sperms, supporting the survival of germ cells, and suppressing proliferation of primary lymphocytes in vitro. Moreover, CiSCs are sensitive to toxic substances, making them an alternative model to study the deleterious effects of toxicants on SCs. The study provides an efficient approach to reprogram fibroblasts into functional SCs by using pure chemical compounds.
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Affiliation(s)
- Yan Yang
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, 510632, China
| | - Quan Li
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Rufei Huang
- Department of Pharmacology, Jinan University, Guangzhou, 510632, China
| | - Huan Xia
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Yan Tang
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Wanwen Mai
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Jinlian Liang
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Siying Ma
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Derong Chen
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Yuqing Feng
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China.,Department of Pharmacology, Jinan University, Guangzhou, 510632, China
| | - Yaling Lei
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Qihao Zhang
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, 510632, China
| | - Yadong Huang
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, 510632, China
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13
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Wang J, Gu S, Liu F, Chen Z, Xu H, Liu Z, Cheng W, Wu L, Xu T, Chen Z, Chen D, Chen X, Zeng F, Zhao Z, Zhang M, Cao N. Reprogramming of fibroblasts into expandable cardiovascular progenitor cells via small molecules in xeno-free conditions. Nat Biomed Eng 2022; 6:403-420. [PMID: 35361933 DOI: 10.1038/s41551-022-00865-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 11/16/2021] [Indexed: 12/24/2022]
Abstract
A major hurdle in cardiac cell therapy is the lack of a bona fide autologous stem-cell type that can be expanded long-term and has authentic cardiovascular differentiation potential. Here we report that a proliferative cell population with robust cardiovascular differentiation potential can be generated from mouse or human fibroblasts via a combination of six small molecules. These chemically induced cardiovascular progenitor cells (ciCPCs) self-renew long-term in fully chemically defined and xeno-free conditions, with faithful preservation of the CPC phenotype and of cardiovascular differentiation capacity in vitro and in vivo. Transplantation of ciCPCs into infarcted mouse hearts improved animal survival and cardiac function up to 13 weeks post-infarction. Mechanistically, activated fibroblasts revert to a plastic state permissive to cardiogenic signals, enabling their reprogramming into ciCPCs. Expanded autologous cardiovascular cells may find uses in drug discovery, disease modelling and cardiac cell therapy.
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Affiliation(s)
- Jia Wang
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Shanshan Gu
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Fang Liu
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Zihao Chen
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - He Xu
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Zhun Liu
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Weisheng Cheng
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Linwei Wu
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Tao Xu
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Zhongyan Chen
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Ding Chen
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Xuena Chen
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Fanzhu Zeng
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Zhiju Zhao
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China
| | - Mingliang Zhang
- Department of Histoembryology, Genetics and Developmental Biology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Reproductive Medicine, Shanghai, China
| | - Nan Cao
- Zhongshan School of Medicine and the Seventh Affiliated Hospital, Sun Yat-Sen University, Guangdong, China. .,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangdong, China.
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14
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Zhong C, Liu M, Pan X, Zhu H. Tumorigenicity Risk of iPSCs in vivo: Nip it in the Bud. PRECISION CLINICAL MEDICINE 2022; 5:pbac004. [PMID: 35692443 PMCID: PMC9026204 DOI: 10.1093/pcmedi/pbac004] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/18/2022] [Accepted: 01/23/2022] [Indexed: 11/17/2022] Open
Abstract
In 2006, Takahashi and Yamanaka first created induced pluripotent stem cells from mouse fibroblasts via the retroviral introduction of genes encoding the transcription factors Oct3/4, Sox2, Klf44, and c-Myc. Since then, the future clinical application of somatic cell reprogramming technology has become an attractive research topic in the field of regenerative medicine. Of note, considerable interest has been placed in circumventing ethical issues linked to embryonic stem cell research. However, tumorigenicity, immunogenicity, and heterogeneity may hamper attempts to deploy this technology therapeutically. This review highlights the progress aimed at reducing induced pluripotent stem cells tumorigenicity risk and how to assess the safety of induced pluripotent stem cells cell therapy products.
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Affiliation(s)
- Chaoliang Zhong
- Department of Cell Biology, Naval Medical University, Shanghai, China
| | - Miao Liu
- Department of Cell Biology, Naval Medical University, Shanghai, China
| | - Xinghua Pan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, and Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, Guangdong, China
- Shenzhen Bay Laboratory, Shenzhen 518032, Guangdong, China
| | - Haiying Zhu
- Department of Cell Biology, Naval Medical University, Shanghai, China
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15
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Wang J, Liu X, Yang J, Guo H, Li J, Huo L, Zhao H, Wang X, Yan X, Li B, Sun Y. Effects of small-molecule compounds on fibroblast properties in golden snub-nosed monkey (Rhinopithecus roxellana). J Med Primatol 2021; 50:323-331. [PMID: 34664268 DOI: 10.1111/jmp.12549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/19/2021] [Accepted: 09/27/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Golden snub-nosed monkey (Rhinopithecus roxellana) is an endangered primate species, whose molecular material for conservation purposes has not yet been maintained. Although small-molecule compounds (SMCs) have been reported to improve induced pluripotent stem cells (iPSCs), their efficiency in the interspecies-transferred nucleus is still unknown. METHODS We thus used the fibroblasts from the golden snub-nosed monkey treated with SMC as donor cells, injected into the enucleated oocytes of goats, to test such efficiency. Gene expression profiles in the cell-constructed embryos with and without SMCs were compared by qPCR. RESULTS The results show that cell morphology undergoes remarkable changes (volume is smaller than normal cells, and many black spots in the cytoplasm were found); pluripotent genes (Oct4, Sox2, and Nanog) significantly increased with SMC treatment. CONCLUSIONS This study demonstrates that SMCs alter the properties of donor cells and promote the expression of pluripotent genes in hybrid embryos.
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Affiliation(s)
- Juanjuan Wang
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Xin Liu
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Jing Yang
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Hanxing Guo
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Jingjing Li
- The school of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Lihui Huo
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Haitao Zhao
- Shaanxi Institute of Zoology, Northwest Institute of Endangered Zoology Species, Xi'an, China
| | - Xiaowei Wang
- Shaanxi Institute of Zoology, Northwest Institute of Endangered Zoology Species, Xi'an, China
| | - Xingrong Yan
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Baoguo Li
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Science, Kumming, China
| | - Yu Sun
- Shaanxi Key Laboratory for Animal Conservation, Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
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16
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Chen Z, Huang Y, Yu C, Liu Q, Qiu C, Wan G. Cochlear Sox2 + Glial Cells Are Potent Progenitors for Spiral Ganglion Neuron Reprogramming Induced by Small Molecules. Front Cell Dev Biol 2021; 9:728352. [PMID: 34621745 PMCID: PMC8490772 DOI: 10.3389/fcell.2021.728352] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/30/2021] [Indexed: 12/13/2022] Open
Abstract
In the mammalian cochlea, spiral ganglion neurons (SGNs) relay the acoustic information to the central auditory circuits. Degeneration of SGNs is a major cause of sensorineural hearing loss and severely affects the effectiveness of cochlear implant therapy. Cochlear glial cells are able to form spheres and differentiate into neurons in vitro. However, the identity of these progenitor cells is elusive, and it is unclear how to differentiate these cells toward functional SGNs. In this study, we found that Sox2+ subpopulation of cochlear glial cells preserves high potency of neuronal differentiation. Interestingly, Sox2 expression was downregulated during neuronal differentiation and Sox2 overexpression paradoxically inhibited neuronal differentiation. Our data suggest that Sox2+ glial cells are potent SGN progenitor cells, a phenotype independent of Sox2 expression. Furthermore, we identified a combination of small molecules that not only promoted neuronal differentiation of Sox2– glial cells, but also removed glial cell identity and promoted the maturation of the induced neurons (iNs) toward SGN fate. In summary, we identified Sox2+ glial subpopulation with high neuronal potency and small molecules inducing neuronal differentiation toward SGNs.
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Affiliation(s)
- Zhen Chen
- MOE Key Laboratory of Model Animal for Disease Study, Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Drum Tower Hospital of Medical School, Model Animal Research Center of Medical School, Nanjing University, Nanjing, China
| | - Yuhang Huang
- MOE Key Laboratory of Model Animal for Disease Study, Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Drum Tower Hospital of Medical School, Model Animal Research Center of Medical School, Nanjing University, Nanjing, China
| | - Chaorong Yu
- MOE Key Laboratory of Model Animal for Disease Study, Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Drum Tower Hospital of Medical School, Model Animal Research Center of Medical School, Nanjing University, Nanjing, China
| | - Qing Liu
- MOE Key Laboratory of Model Animal for Disease Study, Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Drum Tower Hospital of Medical School, Model Animal Research Center of Medical School, Nanjing University, Nanjing, China
| | - Cui Qiu
- MOE Key Laboratory of Model Animal for Disease Study, Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Drum Tower Hospital of Medical School, Model Animal Research Center of Medical School, Nanjing University, Nanjing, China
| | - Guoqiang Wan
- MOE Key Laboratory of Model Animal for Disease Study, Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Drum Tower Hospital of Medical School, Model Animal Research Center of Medical School, Nanjing University, Nanjing, China.,Research Institute of Otolaryngology, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China.,Institute for Brain Sciences, Nanjing University, Nanjing, China
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17
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Zhang M, Tian Y, Zhang S, Yan H, Ge W, Han B, Yan Z, Cheng S, Shen W. The proliferation role of LH on porcine primordial germ cell-like cells (pPGCLCs) through ceRNA network construction. Clin Transl Med 2021; 11:e560. [PMID: 34709759 PMCID: PMC8516341 DOI: 10.1002/ctm2.560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 08/12/2021] [Accepted: 08/16/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The transdifferentiation of skin-derived stem cells (SDSCs) into primordial germ cell-like cells (PGCLCs) is one of the major breakthroughs in the field of stem cells research in recent years. This technology provides a new theoretical basis for the treatment of human infertility. However, the transdifferentiation efficiency of SDSCs to PGCLCs is very low, and scientists are still exploring ways to improve this efficiency or promote the proliferation of PGCLCs. This study aims to investigate the molecular mechanism of luteinising hormone (LH) to enhance porcine PGCLCs (pPGCLCs) proliferation. RESULTS In this study, we dissected the proliferation regulatory network of pPGCLCs by whole transcriptome sequencing, and the results showed that the pituitary-secreted reproductive hormone LH significantly promoted the proliferation of pPGCLCs. We combined whole transcriptome sequencing and related validation experiments to explore the mechanism of LH on the proliferation of pPGCLCs, and found that LH could affect the expression of Hippo signalling pathway-related mRNAs, miRNAs and lncRNAs in pPGCLCs. CONCLUSIONS For the first time, we found that LH promotes pPGCLCs proliferation through the competing endogenous RNA (ceRNA) regulatory networks and Hippo signalling pathway. This finding may help to elucidate the molecular mechanism by which LH promotes pPGCLCs proliferation.
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Affiliation(s)
- Ming‐Yu Zhang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of ShandongQingdao Agricultural UniversityQingdaoChina
| | - Yu Tian
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of ShandongQingdao Agricultural UniversityQingdaoChina
| | - Shu‐Er Zhang
- Animal Husbandry General Station of Shandong ProvinceJinanChina
| | - Hong‐Chen Yan
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of ShandongQingdao Agricultural UniversityQingdaoChina
| | - Wei Ge
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of ShandongQingdao Agricultural UniversityQingdaoChina
| | - Bao‐Quan Han
- Urology DepartmentPeking University Shenzhen HospitalShenzhenChina
| | - Zi‐Hui Yan
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of ShandongQingdao Agricultural UniversityQingdaoChina
| | - Shun‐Feng Cheng
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of ShandongQingdao Agricultural UniversityQingdaoChina
| | - Wei Shen
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of ShandongQingdao Agricultural UniversityQingdaoChina
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18
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Singh B, Mal G, Verma V, Tiwari R, Khan MI, Mohapatra RK, Mitra S, Alyami SA, Emran TB, Dhama K, Moni MA. Stem cell therapies and benefaction of somatic cell nuclear transfer cloning in COVID-19 era. Stem Cell Res Ther 2021; 12:283. [PMID: 33980321 PMCID: PMC8114669 DOI: 10.1186/s13287-021-02334-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/12/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The global health emergency of COVID-19 has necessitated the development of multiple therapeutic modalities including vaccinations, antivirals, anti-inflammatory, and cytoimmunotherapies, etc. COVID-19 patients suffer from damage to various organs and vascular structures, so they present multiple health crises. Mesenchymal stem cells (MSCs) are of interest to treat acute respiratory distress syndrome (ARDS) caused by SARS-CoV-2 infection. MAIN BODY Stem cell-based therapies have been verified for prospective benefits in copious preclinical and clinical studies. MSCs confer potential benefits to develop various cell types and organoids for studying virus-human interaction, drug testing, regenerative medicine, and immunomodulatory effects in COVID-19 patients. Apart from paving the ways to augment stem cell research and therapies, somatic cell nuclear transfer (SCNT) holds unique ability for a wide range of health applications such as patient-specific or isogenic cells for regenerative medicine and breeding transgenic animals for biomedical applications. Being a potent cell genome-reprogramming tool, the SCNT has increased prominence of recombinant therapeutics and cellular medicine in the current era of COVID-19. As SCNT is used to generate patient-specific stem cells, it avoids dependence on embryos to obtain stem cells. CONCLUSIONS The nuclear transfer cloning, being an ideal tool to generate cloned embryos, and the embryonic stem cells will boost drug testing and cellular medicine in COVID-19.
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Affiliation(s)
- Birbal Singh
- ICAR-Indian Veterinary Research Institute Regional Station, Palampur, Himachal Pradesh, India
| | - Gorakh Mal
- ICAR-Indian Veterinary Research Institute Regional Station, Palampur, Himachal Pradesh, India
| | - Vinod Verma
- Stem Cell Research Centre, Department of Hematology, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, India
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, Uttar Pradesh Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan (DUVASU), Mathura, 281001, India
| | - Muhammad Imran Khan
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, China
| | - Ranjan K Mohapatra
- Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Salem A Alyami
- Department of Mathematics and Statistics, Imam Mohammad Ibn Saud Islamic University, Riyadh, 11432, Saudi Arabia
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, 4381, Bangladesh.
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India.
| | - Mohammad Ali Moni
- WHO Collaborating Centre on eHealth, UNSW Digital Health, Faculty of Medicine, School of Public Health and Community Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia.
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19
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Abstract
In mammals, many organs lack robust regenerative abilities. Lost cells in impaired tissue could potentially be compensated by converting nearby cells in situ through in vivo reprogramming. Small molecule-induced cell reprogramming offers a temporally flexible and non-integrative strategy for altering cell fate, which is, in principle, favorable for in vivo reprogramming in organs with notoriously poor regenerative abilities, such as the brain. Here, we demonstrate that in the adult mouse brain, small molecules can reprogram astrocytes into neurons. The in situ chemically induced neurons resemble endogenous neurons in terms of neuron-specific marker expression, electrophysiological properties, and synaptic connectivity. Our study demonstrates the feasibility of in vivo chemical reprogramming in the adult mouse brain and provides a potential approach for developing neuronal replacement therapies.
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20
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Raas MWD, Zijlmans DW, Marks H. Overcoming epigenetic roadblocks. Nat Chem Biol 2021; 17:6-7. [PMID: 32807970 DOI: 10.1038/s41589-020-0629-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maximilian W D Raas
- Department of Molecular Biology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University, Nijmegen, the Netherlands
| | - Dick W Zijlmans
- Department of Molecular Biology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University, Nijmegen, the Netherlands
| | - Hendrik Marks
- Department of Molecular Biology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University, Nijmegen, the Netherlands.
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21
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Gao X, Li R, Cahan P, Zhao Y, Yourick JJ, Sprando RL. Hepatocyte-like cells derived from human induced pluripotent stem cells using small molecules: implications of a transcriptomic study. Stem Cell Res Ther 2020; 11:393. [PMID: 32917265 PMCID: PMC7488531 DOI: 10.1186/s13287-020-01914-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/12/2020] [Accepted: 08/30/2020] [Indexed: 11/17/2022] Open
Abstract
Background Hepatocyte-like cells (HLCs) derived from human induced pluripotent stem cells (iPSCs) hold great promise in toxicological applications as well as in regenerative medicine. Previous efforts on hepatocyte differentiation have mostly relied on the use of growth factors (GFs) to recapitulate developmental signals under in vitro conditions. Recently, the use of small molecules (SMs) has emerged as an attractive tool to induce cell fate transition due to its superiority in terms of both quality and cost. However, HLCs derived using SMs have not been well characterized, especially on the transcriptome level. Methods HLCs were differentiated from human iPSCs using a protocol that only involves SMs and characterized by transcriptomic analysis using whole genome microarrays. Results HLCs derived using the SM protocol (HLC_SM) displayed specific hepatic marker expression and demonstrated key hepatic functions. Transcriptomic analysis of the SM-driven differentiation defined a hepatocyte differentiation track and characterized the expression of some key marker genes in major stages of hepatocyte differentiation. In addition, HLC_SM were scored with CellNet, a bioinformatics tool quantifying how closely engineered cell populations resemble their target cell type, and compared to primary human hepatocytes (PHHs), adult liver tissue, fetal liver tissue, HLCs differentiated using GFs (HLC_GF), and commercially available HLCs. Similar to HLC_GF, HLC_SM displayed a mixed phenotype of fetal and adult hepatocytes and had relatively low expression of metabolic enzymes, transporters, and nuclear receptors compared to PHHs. Finally, the differentially expressed genes in HLC_SM compared to HLC_GF and to PHHs were analyzed to identify pathways and upstream transcription regulators which could potentially be manipulated to improve the differentiation of HLCs. Conclusions Overall, the present study demonstrated the usefulness of the SM-based hepatocyte differentiation method, offered new insights into the molecular basis of hepatogenesis and associated gene regulation, and suggested ways for further improvements in hepatocyte differentiation in order to obtain more mature HLCs that could be used in toxicological studies.
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Affiliation(s)
- Xiugong Gao
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD, 20708, USA.
| | - Rong Li
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
| | - Patrick Cahan
- Department of Biomedical Engineering, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Yang Zhao
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
| | - Jeffrey J Yourick
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
| | - Robert L Sprando
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
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22
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Yang Y, Zhou C, Zhang T, Li Q, Mei J, Liang J, Li Z, Li H, Xiang Q, Zhang Q, Zhang L, Huang Y. Conversion of Fibroblast into Functional Leydig-like Cell Using Defined Small Molecules. Stem Cell Reports 2020; 15:408-423. [PMID: 32735821 PMCID: PMC7419716 DOI: 10.1016/j.stemcr.2020.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 07/01/2020] [Accepted: 07/01/2020] [Indexed: 12/17/2022] Open
Abstract
Recent studies have demonstrated that fibroblasts can be directly converted into functional Leydig cells by transcription factors. However, the transgenic approach used in these studies raises safety concerns for its future application. Here, we report that fibroblasts can be directly reprogrammed into Leydig-like cells by exposure to a combination of forskolin, 20α-hydroxycholesterol, luteinizing hormone, and SB431542. These chemical compound-induced Leydig-like cells (CiLCs) express steroidogenic genes and have a global gene expression profile similar to that of progenitor Leydig cells, although not identical. In addition, these cells can survive in testis and produce testosterone in a circadian rhythm. This induction strategy is applicable to reprogramming human periodontal ligament fibroblasts toward Leydig-like cells. These findings demonstrated fibroblasts can be directly converted into Leydig-like cells by pure chemical compounds. This strategy overcomes the limitations of conventional transgenic-based reprogramming and provides a simple, effective approach for Leydig cell-based therapy while simultaneously preserving the hypothalamic-pituitary-gonadal axis. Direct induction of fibroblasts into Leydig-like cells (CiLCs) by chemicals CiLCs were modulated by HPG axis and produced testosterone in a diurnal rhythm Conversion process toward CiLCs did not pass through an intermediate state
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Affiliation(s)
- Yan Yang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Chenxing Zhou
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Tiantian Zhang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Quan Li
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Jiaxin Mei
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Jinlian Liang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Ziyi Li
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Hanhao Li
- Department of Pharmacology, Jinan University, Guangzhou 510632, China
| | - Qi Xiang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; Bioparmaceutical R&D Center of Jinan University, Guangzhou 510632, China
| | - Qihao Zhang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Lei Zhang
- Guangdong Provincial Institute of Biological Products and Materia Medica, Guangzhou 510440, China
| | - Yadong Huang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; Department of Pharmacology, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Bioengineering Medicine of, Guangzhou 510632, China.
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23
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Wuputra K, Ku CC, Wu DC, Lin YC, Saito S, Yokoyama KK. Prevention of tumor risk associated with the reprogramming of human pluripotent stem cells. J Exp Clin Cancer Res 2020; 39:100. [PMID: 32493501 PMCID: PMC7268627 DOI: 10.1186/s13046-020-01584-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/22/2020] [Indexed: 02/07/2023] Open
Abstract
Human pluripotent embryonic stem cells have two special features: self-renewal and pluripotency. It is important to understand the properties of pluripotent stem cells and reprogrammed stem cells. One of the major problems is the risk of reprogrammed stem cells developing into tumors. To understand the process of differentiation through which stem cells develop into cancer cells, investigators have attempted to identify the key factors that generate tumors in humans. The most effective method for the prevention of tumorigenesis is the exclusion of cancer cells during cell reprogramming. The risk of cancer formation is dependent on mutations of oncogenes and tumor suppressor genes during the conversion of stem cells to cancer cells and on the environmental effects of pluripotent stem cells. Dissecting the processes of epigenetic regulation and chromatin regulation may be helpful for achieving correct cell reprogramming without inducing tumor formation and for developing new drugs for cancer treatment. This review focuses on the risk of tumor formation by human pluripotent stem cells, and on the possible treatment options if it occurs. Potential new techniques that target epigenetic processes and chromatin regulation provide opportunities for human cancer modeling and clinical applications of regenerative medicine.
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Affiliation(s)
- Kenly Wuputra
- Graduate Institute of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd., San-Ming District, Kaohsiung, 807, Taiwan
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
| | - Chia-Chen Ku
- Graduate Institute of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd., San-Ming District, Kaohsiung, 807, Taiwan
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
| | - Deng-Chyang Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
| | - Ying-Chu Lin
- School of Dentistry, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Shigeo Saito
- Waseda University Research Institute for Science and Engineering, Shinjuku, Tokyo, 162-8480, Japan.
- Saito Laboratory of Cell Technology Institute, Yaita, Tochigi, 329-1571, Japan.
| | - Kazunari K Yokoyama
- Graduate Institute of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd., San-Ming District, Kaohsiung, 807, Taiwan.
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
- Waseda University Research Institute for Science and Engineering, Shinjuku, Tokyo, 162-8480, Japan.
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24
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Bioactive Molecules for Skin Repair and Regeneration: Progress and Perspectives. Stem Cells Int 2019; 2019:6789823. [PMID: 32082386 PMCID: PMC7012201 DOI: 10.1155/2019/6789823] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 10/25/2019] [Indexed: 12/26/2022] Open
Abstract
Skin regeneration is a vexing problem in the field of regenerative medicine. A bioactive molecule-based strategy has been frequently used in skin wound healing in recent years. Bioactive molecules are practical tools for regulating cellular processes and have been applied to control cellular differentiation, dedifferentiation, and reprogramming. In this review, we focus on recent progress in the use of bioactive molecules in skin regenerative medicine, by which desired cell types can be generated in vitro for cell therapy and conventional therapeutics can be developed to repair and regenerate skin in vivo through activation of the endogenous repairing potential. We further prospect that the bioactive molecule-base method might be one of the promising strategies to achieve in situ skin regeneration in the future.
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25
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Ge JY, Zheng YW, Liu LP, Isoda H, Oda T. Impelling force and current challenges by chemicals in somatic cell reprogramming and expansion beyond hepatocytes. World J Stem Cells 2019; 11:650-665. [PMID: 31616541 PMCID: PMC6789182 DOI: 10.4252/wjsc.v11.i9.650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 07/07/2019] [Accepted: 08/21/2019] [Indexed: 02/06/2023] Open
Abstract
In the field of regenerative medicine, generating numerous transplantable functional cells in the laboratory setting on a large scale is a major challenge. However, the in vitro maintenance and expansion of terminally differentiated cells are challenging because of the lack of specific environmental and intercellular signal stimulations, markedly hindering their therapeutic application. Remarkably, the generation of stem/progenitor cells or functional cells with effective proliferative potential is markedly in demand for disease modeling, cell-based transplantation, and drug discovery. Despite the potent genetic manipulation of transcription factors, integration-free chemically defined approaches for the conversion of somatic cell fate have garnered considerable attention in recent years. This review aims to summarize the progress thus far and discuss the advantages, limitations, and challenges of the impact of full chemicals on the stepwise reprogramming of pluripotency, direct lineage conversion, and direct lineage expansion on somatic cells. Owing to the current chemical-mediated induction, reprogrammed pluripotent stem cells with reproducibility difficulties, and direct lineage converted cells with marked functional deficiency, it is imperative to generate the desired cell types directly by chemically inducing their potent proliferation ability through a lineage-committed progenitor state, while upholding the maturation and engraftment capacity posttransplantation in vivo. Together with the comprehensive understanding of the mechanism of chemical drives, as well as the elucidation of specificity and commonalities, the precise manipulation of the expansion for diverse functional cell types could broaden the available cell sources and enhance the cellular function for clinical application in future.
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Affiliation(s)
- Jian-Yun Ge
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yun-Wen Zheng
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
- Institute of Regenerative Medicine and Affiliated Hospital, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
- Department of Regenerative Medicine, School of Medicine, Yokohama City University, Yokohama 236-0004, Japan
| | - Li-Ping Liu
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
- Institute of Regenerative Medicine and Affiliated Hospital, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Hiroko Isoda
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan
| | - Tatsuya Oda
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
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26
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Zhao Y. Chemically induced cell fate reprogramming and the acquisition of plasticity in somatic cells. Curr Opin Chem Biol 2019; 51:146-153. [PMID: 31153758 DOI: 10.1016/j.cbpa.2019.04.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/08/2019] [Accepted: 04/25/2019] [Indexed: 12/14/2022]
Abstract
The nature of somatic cell fate has always been considered relatively unchangeable. Only in rare cases, in response to highly specific environmental cues, do differentiated mammalian somatic cells transform into other cell types. However, the fact that cell fate reprogramming can be accomplished by utilizing chemical cocktails, in the absence of any genetic alterations, suggests that the fate determination of somatic cells is much more malleable than previously believed. The use of chemical cocktails to directly alter cell fate sheds light on an important, yet less explored approach to regenerative medicine: the use of chemicals to restore functions to injured, aging or diseased tissues. Here, we review and discuss the recent developments, inspirations, and challenges encountered when modulating cell fate reprogramming with chemicals, and investigate how chemical biology impacts the future of cell fate reprogramming and regenerative medicine.
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Affiliation(s)
- Yang Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, MOE Key Laboratory of Cell Proliferation and Differentiation, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Center for Life Sciences, Institute of Molecular Medicine, Peking University, Beijing, China.
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27
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Fang L, El Wazan L, Tan C, Nguyen T, Hung SSC, Hewitt AW, Wong RCB. Potentials of Cellular Reprogramming as a Novel Strategy for Neuroregeneration. Front Cell Neurosci 2018; 12:460. [PMID: 30555303 PMCID: PMC6284065 DOI: 10.3389/fncel.2018.00460] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 11/12/2018] [Indexed: 12/25/2022] Open
Abstract
Cellular reprogramming technology holds great potential for tissue repair and regeneration to replace cells that are lost due to diseases or injuries. In addition to the landmark discovery of induced pluripotent stem cells, advances in cellular reprogramming allow the direct lineage conversion of one somatic cell type to another using defined transcription factors. This direct reprogramming technology represents a rapid way to generate target cells in the laboratory, which can be used for transplantation and studies of biology and diseases. More importantly, recent work has demonstrated the exciting application of direct reprogramming to stimulate regeneration in vivo, providing an alternative approach to transplantation of donor cells. Here, we provide an overview of the underlying concept of using cellular reprogramming to convert cell fates and discuss the current advances in cellular reprogramming both in vitro and in vivo, with particular focuses on the neural and retinal systems. We also discuss the potential of in vivo reprogramming in regenerative medicine, the challenges and potential solutions to translate this technology to the clinic.
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Affiliation(s)
- Lyujie Fang
- Centre for Eye Research Australia, East Melbourne, VIC, Australia.,Ophthalmology, Department of Surgery, The University of Melbourne, Melbourne, VIC, Australia.,Department of Ophthalmology, Jinan University, Guangzhou, China
| | - Layal El Wazan
- Centre for Eye Research Australia, East Melbourne, VIC, Australia.,Ophthalmology, Department of Surgery, The University of Melbourne, Melbourne, VIC, Australia
| | - Christine Tan
- Centre for Eye Research Australia, East Melbourne, VIC, Australia.,Ophthalmology, Department of Surgery, The University of Melbourne, Melbourne, VIC, Australia
| | - Tu Nguyen
- Centre for Eye Research Australia, East Melbourne, VIC, Australia.,Ophthalmology, Department of Surgery, The University of Melbourne, Melbourne, VIC, Australia
| | - Sandy S C Hung
- Centre for Eye Research Australia, East Melbourne, VIC, Australia
| | - Alex W Hewitt
- Centre for Eye Research Australia, East Melbourne, VIC, Australia.,Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Raymond C B Wong
- Centre for Eye Research Australia, East Melbourne, VIC, Australia.,Ophthalmology, Department of Surgery, The University of Melbourne, Melbourne, VIC, Australia.,Shenzhen Eye Hospital, Shenzhen, China
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