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Hernández-Díaz N, Tzouganatou S, Mulik PR, Balestrini PA, Fogarty NME. Transcriptional insights from the human embryo identify laminin-511 as a suitable matrix for human trophoblast stem cell culture. Placenta 2024:S0143-4004(24)00602-7. [PMID: 39095275 DOI: 10.1016/j.placenta.2024.07.308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 07/18/2024] [Accepted: 07/23/2024] [Indexed: 08/04/2024]
Abstract
The establishment of culture conditions to propagate self-renewing human trophoblast stem cells in long-term culture provides a paradigm for in vitro modelling of trophoblast. The extracellular matrix (ECM) is a critical determinant of cell identity and behaviour. Therefore, models aiming to reproduce cells in vitro should recapitulate the native cell-ECM microenvironment. Here, we mine human embryo transcriptional datasets to identify ECM components and cognate receptors expressed in the trophectoderm. Following, we identify laminin-511-E8 protein fragment as a physiologically relevant ECM capable of maintaining hTSCs in the stem cell state and retaining differentiation ability.
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Affiliation(s)
- Nathaly Hernández-Díaz
- Trophoblast and Human Embryo Lab, Centre for Gene Therapy and Regenerative Medicine, Tower Wing, Guy's Hospital, Great Maze Pond, King's College London, SE1 9RT, UK
| | - Sofia Tzouganatou
- Department of Metabolism, Digestion and Reproduction, Hammersmith Hospital School of Medicine, Imperial College London, SW7 2AZ, UK
| | - Praditi R Mulik
- Trophoblast and Human Embryo Lab, Centre for Gene Therapy and Regenerative Medicine, Tower Wing, Guy's Hospital, Great Maze Pond, King's College London, SE1 9RT, UK
| | - Paula A Balestrini
- Trophoblast and Human Embryo Lab, Centre for Gene Therapy and Regenerative Medicine, Tower Wing, Guy's Hospital, Great Maze Pond, King's College London, SE1 9RT, UK
| | - Norah M E Fogarty
- Trophoblast and Human Embryo Lab, Centre for Gene Therapy and Regenerative Medicine, Tower Wing, Guy's Hospital, Great Maze Pond, King's College London, SE1 9RT, UK.
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2
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Huang J, Li J, Li S, Yang X, Huo N, Chen Q, Wang W, Yang N, Wang Y, Zhou N. Netrin-1-engineered endothelial cell exosomes induce the formation of pre-regenerative niche to accelerate peripheral nerve repair. SCIENCE ADVANCES 2024; 10:eadm8454. [PMID: 38941462 PMCID: PMC11212737 DOI: 10.1126/sciadv.adm8454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 05/24/2024] [Indexed: 06/30/2024]
Abstract
The formation of vascular niche is pivotal during the early stage of peripheral nerve regeneration. Nevertheless, the mechanisms of vascular niche in the regulation of peripheral nerve repair remain unclear. Netrin-1 (NTN1) was found up-regulated in nerve stump after peripheral nerve injury (PNI). Herein, we demonstrated that NTN1-high endothelial cells (NTN1+ECs) were the critical component of vascular niche, fostering angiogenesis, axon regeneration, and repair-related phenotypes. We also found that NTN1+EC-derived exosomes (NTN1 EC-EXO) were involved in the formation of vascular niche as a critical role. Multi-omics analysis further verified that NTN1 EC-EXO carried a low-level expression of let7a-5p and activated key pathways associated with niche formation including focal adhesion, axon guidance, phosphatidylinositol 3-kinase-AKT, and mammalian target of rapamycin signaling pathway. Together, our study suggested that the construction of a pre-regenerative niche induced by NTN1 EC-EXO could establish a beneficial microenvironment for nerve repair and facilitate functional recovery after PNI.
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Affiliation(s)
- Jinsheng Huang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Jiangnan Li
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Senrui Li
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Xiaoqi Yang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Nianci Huo
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Qiang Chen
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Wengang Wang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Ningning Yang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Yuanyi Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, Orthopedics Center, Jilin University, Changchun 130021, China
| | - Nan Zhou
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
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3
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Liu F, Ye S, Zhao L, Niu Q. The role of IGF/IGF-1R signaling in the regulation of cancer stem cells. Clin Transl Oncol 2024:10.1007/s12094-024-03561-x. [PMID: 38865036 DOI: 10.1007/s12094-024-03561-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/05/2024] [Indexed: 06/13/2024]
Abstract
Cancer stem cells (CSCs) are a group of tumor cells with high tumorigenic ability and self-renewal potential similar to those of normal stem cells. CSCs are the key "seeds" for tumor development, metastasis, and recurrence. A better insight into the key mechanisms underlying CSC survival improves the efficiency of cancer therapy via specific targeting of CSCs. Insulin-like growth factor (IGF)/IGF-1 receptor (IGF-1R) signaling plays an important role in the maintenance of cancer stemness. However, the effect of IGF/IGF-1R signaling on stemness and CSCs and the underlying mechanisms are still controversial. Based on the similarity between CSCs and normal stem cells, this review discusses emerging data on the functions of IGF/IGF-1R signaling in normal stem cells and CSCs and dissects the underlying mechanisms by which IGF/IGF-1R signaling is involved in CSCs. On the other hand, this review highlighted the role of IGF/IGF-1R signaling blockade in multiple CSCs as a potential strategy to improve CSC-based therapy.
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Affiliation(s)
- Fengchao Liu
- Liver Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, China.
| | - Susu Ye
- Liver Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Liu Zhao
- Liver Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qinghui Niu
- Liver Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, China
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4
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Luijkx DG, Ak A, Guo G, van Blitterswijk CA, Giselbrecht S, Vrij EJ. Monochorionic Twinning in Bioengineered Human Embryo Models. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313306. [PMID: 38593372 DOI: 10.1002/adma.202313306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/26/2024] [Indexed: 04/11/2024]
Abstract
Monochorionic twinning of human embryos increases the risk of complications during pregnancy. The rarity of such twinning events, combined with ethical constraints in human embryo research, makes investigating the mechanisms behind twinning practically infeasible. As a result, there is a significant knowledge gap regarding the origins and early phenotypic presentation of monochorionic twin embryos. In this study, a microthermoformed-based microwell screening platform is used to identify conditions that efficiently induce monochorionic twins in human stem cell-based blastocyst models, termed "twin blastoids". These twin blastoids contain a cystic GATA3+ trophectoderm-like epithelium encasing two distinct inner cell masses (ICMs). Morphological and morphokinetic analyses reveal that twinning occurs during the cavitation phase via splitting of the OCT4+ pluripotent core. Notably, each ICM in twin blastoids contains its own NR2F2+ polar trophectoderm-like region, ready for implantation. This is functionally tested in a microfluidic chip-based implantation assay with epithelial endometrium cells. Under defined flow regimes, twin blastoids show increased adhesion capacity compared to singleton blastoids, suggestive of increased implantation potential. In conclusion, the development of technology enabling large-scale formation of twin blastoids, coupled with high-sensitivity readout capabilities, presents an unprecedented opportunity for systematically exploring monochorionic twin formation and its impact on embryonic development.
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Affiliation(s)
- Dorian G Luijkx
- MERLN Institute of Technology-Inspired Regenerative Medicine, Department for Instructive Biomaterials Engineering (IBE), Maastricht University, Universiteitssingel 40, Maastricht, 6229ET, The Netherlands
| | - Asli Ak
- MERLN Institute of Technology-Inspired Regenerative Medicine, Department for Instructive Biomaterials Engineering (IBE), Maastricht University, Universiteitssingel 40, Maastricht, 6229ET, The Netherlands
| | - Ge Guo
- Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK
| | - Clemens A van Blitterswijk
- MERLN Institute of Technology-Inspired Regenerative Medicine, Department for Instructive Biomaterials Engineering (IBE), Maastricht University, Universiteitssingel 40, Maastricht, 6229ET, The Netherlands
| | - Stefan Giselbrecht
- MERLN Institute of Technology-Inspired Regenerative Medicine, Department for Instructive Biomaterials Engineering (IBE), Maastricht University, Universiteitssingel 40, Maastricht, 6229ET, The Netherlands
| | - Erik J Vrij
- MERLN Institute of Technology-Inspired Regenerative Medicine, Department for Instructive Biomaterials Engineering (IBE), Maastricht University, Universiteitssingel 40, Maastricht, 6229ET, The Netherlands
- Gynaecology, Women Mother Child Centre, Maastricht University Medical Centre+ (MUMC+), P. Debyelaan 25, Maastricht, 6202AZ, The Netherlands
- GROW - Research Institute for Oncology and Reproduction, Maastricht University, Universiteitssingel 40, Maastricht, 6229ET, The Netherlands
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Liao W, Chen X, Zhang S, Chen J, Liu C, Yu K, Zhang Y, Chen M, Chen F, Shen M, Lu B, Han S, Wang S, Wang J, Du C. Megakaryocytic IGF1 coordinates activation and ferroptosis to safeguard hematopoietic stem cell regeneration after radiation injury. Cell Commun Signal 2024; 22:292. [PMID: 38802843 PMCID: PMC11129484 DOI: 10.1186/s12964-024-01651-5] [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: 02/25/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Hematopoietic stem cell (HSC) regeneration underlies hematopoietic recovery from myelosuppression, which is a life-threatening side effect of cytotoxicity. HSC niche is profoundly disrupted after myelosuppressive injury, while if and how the niche is reshaped and regulates HSC regeneration are poorly understood. METHODS A mouse model of radiation injury-induced myelosuppression was built by exposing mice to a sublethal dose of ionizing radiation. The dynamic changes in the number, distribution and functionality of HSCs and megakaryocytes were determined by flow cytometry, immunofluorescence, colony assay and bone marrow transplantation, in combination with transcriptomic analysis. The communication between HSCs and megakaryocytes was determined using a coculture system and adoptive transfer. The signaling mechanism was investigated both in vivo and in vitro, and was consolidated using megakaryocyte-specific knockout mice and transgenic mice. RESULTS Megakaryocytes become a predominant component of HSC niche and localize closer to HSCs after radiation injury. Meanwhile, transient insulin-like growth factor 1 (IGF1) hypersecretion is predominantly provoked in megakaryocytes after radiation injury, whereas HSCs regenerate paralleling megakaryocytic IGF1 hypersecretion. Mechanistically, HSCs are particularly susceptible to megakaryocytic IGF1 hypersecretion, and mTOR downstream of IGF1 signaling not only promotes activation including proliferation and mitochondrial oxidative metabolism of HSCs, but also inhibits ferritinophagy to restrict HSC ferroptosis. Consequently, the delicate coordination between proliferation, mitochondrial oxidative metabolism and ferroptosis ensures functional HSC expansion after radiation injury. Importantly, punctual IGF1 administration simultaneously promotes HSC regeneration and hematopoietic recovery after radiation injury, representing a superior therapeutic approach for myelosuppression. CONCLUSIONS Our study identifies megakaryocytes as a last line of defense against myelosuppressive injury and megakaryocytic IGF1 as a novel niche signal safeguarding HSC regeneration.
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Affiliation(s)
- Weinian Liao
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Xinliang Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Shuzhen Zhang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Jun Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Chaonan Liu
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Kuan Yu
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Yimin Zhang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Mo Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Fang Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Mingqiang Shen
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Binghui Lu
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Songling Han
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Song Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China
| | - Junping Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China.
| | - Changhong Du
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China.
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Shibata S, Endo S, Nagai LAE, H. Kobayashi E, Oike A, Kobayashi N, Kitamura A, Hori T, Nashimoto Y, Nakato R, Hamada H, Kaji H, Kikutake C, Suyama M, Saito M, Yaegashi N, Okae H, Arima T. Modeling embryo-endometrial interface recapitulating human embryo implantation. SCIENCE ADVANCES 2024; 10:eadi4819. [PMID: 38394208 PMCID: PMC10889356 DOI: 10.1126/sciadv.adi4819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 01/23/2024] [Indexed: 02/25/2024]
Abstract
The initiation of human pregnancy is marked by the implantation of an embryo into the uterine environment; however, the underlying mechanisms remain largely elusive. To address this knowledge gap, we developed hormone-responsive endometrial organoids (EMO), termed apical-out (AO)-EMO, which emulate the in vivo architecture of endometrial tissue. The AO-EMO comprise an exposed apical epithelium surface, dense stromal cells, and a self-formed endothelial network. When cocultured with human embryonic stem cell-derived blastoids, the three-dimensional feto-maternal assembloid system recapitulates critical implantation stages, including apposition, adhesion, and invasion. Endometrial epithelial cells were subsequently disrupted by syncytial cells, which invade and fuse with endometrial stromal cells. We validated this fusion of syncytiotrophoblasts and stromal cells using human blastocysts. Our model provides a foundation for investigating embryo implantation and feto-maternal interactions, offering valuable insights for advancing reproductive medicine.
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Affiliation(s)
- Shun Shibata
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Research and Development Division, Rohto Pharmaceutical Co. Ltd., Osaka 544-8666, Japan
| | - Shun Endo
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Luis A. E. Nagai
- Laboratory of Computational Genomics, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo 113-0032, Japan
| | - Eri H. Kobayashi
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Akira Oike
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Department of Trophoblast Research, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 862-0973, Japan
| | - Norio Kobayashi
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Akane Kitamura
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Takeshi Hori
- Department of Diagnostic and Therapeutic Systems Engineering, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Yuji Nashimoto
- Department of Diagnostic and Therapeutic Systems Engineering, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Ryuichiro Nakato
- Laboratory of Computational Genomics, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo 113-0032, Japan
| | - Hirotaka Hamada
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Hirokazu Kaji
- Department of Diagnostic and Therapeutic Systems Engineering, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Chie Kikutake
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Mikita Suyama
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Masatoshi Saito
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Hiroaki Okae
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Department of Trophoblast Research, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 862-0973, Japan
| | - Takahiro Arima
- Department of Informative Genetics, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
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David L, Bruneau A, Fréour T, Rivron N, Van de Velde H. An update on human pre- and peri-implantation development: a blueprint for blastoids. Curr Opin Genet Dev 2023; 83:102125. [PMID: 37801801 DOI: 10.1016/j.gde.2023.102125] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 08/29/2023] [Accepted: 09/10/2023] [Indexed: 10/08/2023]
Abstract
Despite over 40 years following the first birth from medically assisted reproduction (MAR) technologies, mechanisms underlying the key developmental events during the first 7 days of human development, such as signaling pathway contribution, are remaining a mystery. An in-depth mechanistic understanding of how the human preimplantation embryo develops would support the optimization of embryo quality assessment methods and culturing conditions, thereby increasing the success rate of MAR. However, the limited availability of human embryos, legitimate ethical concerns, and regulations still present an obstacle toward our advancement of knowledge. Stem cell-based embryonic models, including blastoids than model blastocysts, offer unprecedented opportunities to fill knowledge gaps and complement animal models. Blastoids' predictive power depends on how faithfully they recapitulate the blastocyst. Here, we review the state of the art of human pre- and peri-implantation development and outline the specificities of human embryo research to clarify the framework for blastoid research.
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Affiliation(s)
- Laurent David
- Nantes Université, Inserm, CR2TI, F44000 Nantes, France; Nantes Université, CHU Nantes, CNRS, Inserm, BioCore, F44000 Nantes, France.
| | | | - Thomas Fréour
- Nantes Université, Inserm, CR2TI, F44000 Nantes, France; CHU Nantes, service biologie de la reproduction, F44000 Nantes, France
| | - Nicolas Rivron
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
| | - Hilde Van de Velde
- Vrije Universiteit Brussel, Research Group Reproduction and Immunology, B-1090 Brussels, Belgium; UZ Brussel, Brussels IVF, B-1090 Brussels, Belgium
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Nozaki S, Hirai Y. A crucial stem cell plasticity regulation pathway: identification of key elements using the NCCIT human embryonic carcinoma cell line. J Biochem 2023; 174:501-510. [PMID: 37552559 DOI: 10.1093/jb/mvad063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 08/10/2023] Open
Abstract
Upon removal of stemness factors, a small subpopulation of embryonic stem cells (ESCs) spontaneously extrudes the t-SNARE protein syntaxin-4, which upregulates the cell adhesion molecule P-cadherin and induces the onset of epithelial-mesenchymal transition (EMT)-like behaviors with loss of stemness in each cell. In this study, we identified a series of molecular elements responsible for this phenomenon using several small-molecule inhibitors and the human embryonic carcinoma cell line, NCCIT. We found that the syntaxin-4-triggered morphological changes and a decrease in stemness signatures were independently induced by the activation of Rho-associated kinase (ROCK) and the abrogation of PI3K/Akt signaling. We also found that the extracellular expression of syntaxin-4 inactivated focal adhesion kinase (FAK) in association with the augmented expression of P-cadherin, and comparable controls of either of these downstream elements of syntaxin-4 accelerated both ROCK-induced F-actin stress fiber formation and P13K/Akt-suppressed loss of stemness signatures. Cells expressing P-cadherin inactivated FAK but FAK inhibition did not affect P-cadherin expression, demonstrating a causal relationship between P-cadherin and FAK in the event of syntaxin-4 induction. These results reveal a novel signaling axis in stem cells and shed new light on the crucial elements for stem cell plasticity and the maintenance of stemness.
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Affiliation(s)
- Sae Nozaki
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda 669-1330, Japan
| | - Yohei Hirai
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda 669-1330, Japan
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9
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Yu L, Logsdon D, Pinzon-Arteaga CA, Duan J, Ezashi T, Wei Y, Ribeiro Orsi AE, Oura S, Liu L, Wang L, Liu K, Ding X, Zhan L, Zhang J, Nahar A, Stobbe C, Katz-Jaffe M, Schoolcraft WB, Tan T, Hon GC, Yuan Y, Wu J. Large-scale production of human blastoids amenable to modeling blastocyst development and maternal-fetal cross talk. Cell Stem Cell 2023; 30:1246-1261.e9. [PMID: 37683605 DOI: 10.1016/j.stem.2023.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 03/07/2023] [Accepted: 08/03/2023] [Indexed: 09/10/2023]
Abstract
Recent advances in human blastoids have opened new avenues for modeling early human development and implantation. One limitation of our first protocol for human blastoid generation was relatively low efficiency. We now report an optimized protocol for the efficient generation of large quantities of high-fidelity human blastoids from naive pluripotent stem cells. This enabled proteomics analysis that identified phosphosite-specific signatures potentially involved in the derivation and/or maintenance of the signaling states in human blastoids. Additionally, we uncovered endometrial stromal effects in promoting trophoblast cell survival, proliferation, and syncytialization during co-culture with blastoids and blastocysts. Side-by-side single-cell RNA sequencing revealed similarities and differences in transcriptome profiles between pre-implantation blastoids and blastocysts, as well as post-implantation cultures, and uncovered a population resembling early migratory trophoblasts during co-culture with endometrial stromal cells. Our optimized protocol will facilitate broader use of human blastoids as an accessible, perturbable, scalable, and tractable model for human blastocysts.
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Affiliation(s)
- Leqian Yu
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; 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; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Deirdre Logsdon
- Colorado Center for Reproductive Medicine, Lone Tree, CO 80124, USA
| | - Carlos A Pinzon-Arteaga
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jialei Duan
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Toshihiko Ezashi
- Colorado Center for Reproductive Medicine, Lone Tree, CO 80124, USA
| | - Yulei Wei
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China, Agricultural University, Beijing, 100193, China
| | - Ana Elisa Ribeiro Orsi
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo 05508-090, São Paulo, Brazil
| | - Seiya Oura
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lizhong Liu
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lei Wang
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Kun Liu
- Colorado Center for Reproductive Medicine, Lone Tree, CO 80124, USA; Paul M. Rady Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309, USA
| | - Xiaoyun Ding
- Paul M. Rady Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309, USA
| | - Linfeng Zhan
- State Key Laboratory of Primate Biomedical Research Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; Yunan Key Laboratory of Primate Biomedical Research, Kunming 650500, Yunnan, China
| | - Junfei Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China, Agricultural University, Beijing, 100193, China
| | - Asrafun Nahar
- Colorado Center for Reproductive Medicine, Lone Tree, CO 80124, USA
| | - Caitlen Stobbe
- Colorado Center for Reproductive Medicine, Lone Tree, CO 80124, USA
| | - Mandy Katz-Jaffe
- Colorado Center for Reproductive Medicine, Lone Tree, CO 80124, USA
| | | | - Tao Tan
- State Key Laboratory of Primate Biomedical Research Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; Yunan Key Laboratory of Primate Biomedical Research, Kunming 650500, Yunnan, China
| | - Gary C Hon
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Ye Yuan
- Colorado Center for Reproductive Medicine, Lone Tree, CO 80124, USA.
| | - Jun Wu
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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10
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Recurrent RNA edits in human preimplantation potentially enhance maternal mRNA clearance. Commun Biol 2022; 5:1400. [PMID: 36543858 PMCID: PMC9772385 DOI: 10.1038/s42003-022-04338-0] [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: 01/26/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Posttranscriptional modification plays an important role in key embryonic processes. Adenosine-to-inosine RNA editing, a common example of such modifications, is widespread in human adult tissues and has various functional impacts and clinical consequences. However, whether it persists in a consistent pattern in most human embryos, and whether it supports embryonic development, are poorly understood. To address this problem, we compiled the largest human embryonic editome from 2,071 transcriptomes and identified thousands of recurrent embryonic edits (>=50% chances of occurring in a given stage) for each early developmental stage. We found that these recurrent edits prefer exons consistently across stages, tend to target genes related to DNA replication, and undergo organized loss in abnormal embryos and embryos from elder mothers. In particular, these recurrent edits are likely to enhance maternal mRNA clearance, a possible mechanism of which could be introducing more microRNA binding sites to the 3'-untranslated regions of clearance targets. This study suggests a potentially important, if not indispensable, role of RNA editing in key human embryonic processes such as maternal mRNA clearance; the identified editome can aid further investigations.
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11
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Chowdhary S, Hadjantonakis AK. Journey of the mouse primitive endoderm: from specification to maturation. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210252. [PMID: 36252215 PMCID: PMC9574636 DOI: 10.1098/rstb.2021.0252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 05/25/2022] [Indexed: 12/22/2022] Open
Abstract
The blastocyst is a conserved stage and distinct milestone in the development of the mammalian embryo. Blastocyst stage embryos comprise three cell lineages which arise through two sequential binary cell fate specification steps. In the first, extra-embryonic trophectoderm (TE) cells segregate from inner cell mass (ICM) cells. Subsequently, ICM cells acquire a pluripotent epiblast (Epi) or extra-embryonic primitive endoderm (PrE, also referred to as hypoblast) identity. In the mouse, nascent Epi and PrE cells emerge in a salt-and-pepper distribution in the early blastocyst and are subsequently sorted into adjacent tissue layers by the late blastocyst stage. Epi cells cluster at the interior of the ICM, while PrE cells are positioned on its surface interfacing the blastocyst cavity, where they display apicobasal polarity. As the embryo implants into the maternal uterus, cells at the periphery of the PrE epithelium, at the intersection with the TE, break away and migrate along the TE as they mature into parietal endoderm (ParE). PrE cells remaining in association with the Epi mature into visceral endoderm. In this review, we discuss our current understanding of the PrE from its specification to its maturation. This article is part of the theme issue 'Extraembryonic tissues: exploring concepts, definitions and functions across the animal kingdom'.
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Affiliation(s)
- Sayali Chowdhary
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Anna-Katerina Hadjantonakis
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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12
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Munger C, Kohler TN, Slatery E, Ellermann AL, Bergmann S, Penfold C, Ampartzidis I, Chen Y, Hollfelder F, Boroviak TE. Microgel culture and spatial identity mapping elucidate the signalling requirements for primate epiblast and amnion formation. Development 2022; 149:276630. [PMID: 36125063 PMCID: PMC7614365 DOI: 10.1242/dev.200263] [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: 10/12/2021] [Accepted: 06/01/2022] [Indexed: 11/20/2022]
Abstract
The early specification and rapid growth of extraembryonic membranes are distinctive hallmarks of primate embryogenesis. These complex tasks are resolved through an intricate combination of signals controlling the induction of extraembryonic lineages and, at the same time, safeguarding the pluripotent epiblast. Here, we delineate the signals orchestrating primate epiblast and amnion identity. We encapsulated marmoset pluripotent stem cells into agarose microgels and identified culture conditions for the development of epiblast- and amnion-spheroids. Spatial identity mapping authenticated spheroids generated in vitro by comparison with marmoset embryos in vivo. We leveraged the microgel system to functionally interrogate the signalling environment of the post-implantation primate embryo. Single-cell profiling of the resulting spheroids demonstrated that activin/nodal signalling is required for embryonic lineage identity. BMP4 promoted amnion formation and maturation, which was counteracted by FGF signalling. Our combination of microgel culture, single-cell profiling and spatial identity mapping provides a powerful approach to decipher the essential cues for embryonic and extraembryonic lineage formation in primate embryogenesis.
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Affiliation(s)
- Clara Munger
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
- Department of Biochemistry, University of Cambridge, Hopkins Building, Tennis Court Road, Cambridge CB2 1QW, United Kingdom
| | - Timo N. Kohler
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
- Department of Biochemistry, University of Cambridge, Hopkins Building, Tennis Court Road, Cambridge CB2 1QW, United Kingdom
| | - Erin Slatery
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
| | - Anna L. Ellermann
- Department of Biochemistry, University of Cambridge, Hopkins Building, Tennis Court Road, Cambridge CB2 1QW, United Kingdom
| | - Sophie Bergmann
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
| | - Christopher Penfold
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
- Wellcome Trust – Cancer Research UK Gurdon Institute, Henry Wellcome Building of Cancer and Developmental Biology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QN, UK
| | - Ioakeim Ampartzidis
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
| | - Yutong Chen
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge, Hopkins Building, Tennis Court Road, Cambridge CB2 1QW, United Kingdom
- Correspondence: T.E.B. (), F.H. ()
| | - Thorsten E. Boroviak
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, United Kingdom
- Wellcome Trust – Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
- Correspondence: T.E.B. (), F.H. ()
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13
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Co-expression of a PD-L1-specific chimeric switch receptor augments the efficacy and persistence of CAR T cells via the CD70-CD27 axis. Nat Commun 2022; 13:6051. [PMID: 36229619 PMCID: PMC9561169 DOI: 10.1038/s41467-022-33793-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 09/29/2022] [Indexed: 12/24/2022] Open
Abstract
Co-expression of chimeric switch receptors (CSRs) specific for PD-L1 improves the antitumor effects of chimeric antigen receptor (CAR) T cells. However, the effects of trans-recognition between CSRs and PD-L1 expressed by activated CAR T cells remain unclear. Here, we design a CSR specific for PD-L1 (CARP), containing the transmembrane and cytoplasmic signaling domains of CD28 but not the CD3 ζ chain. We show that CARP T cells enhance the antitumor activity of anti-mesothelin CAR (CARMz) T cells in vitro and in vivo. In addition, confocal microscopy indicates that PD-L1 molecules on CARMz T cells accumulate at cell-cell contacts with CARP T cells. Using single-cell RNA-sequencing analysis, we reveal that CARP T cells promote CARMz T cells differentiation into central memory-like T cells, upregulate genes related to Th1 cells, and downregulate Th2-associated cytokines through the CD70-CD27 axis. Moreover, these effects are not restricted to PD-L1, as CAR19 T cells expressing anti-CD19 CSR exhibit similar effects on anti-PSCA CAR T cells with truncated CD19 expression. These findings suggest that target trans-recognition by CSRs on CAR T cells may improve the efficacy and persistence of CAR T cells via the CD70-CD27 axis.
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14
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Bergmann S, Penfold CA, Slatery E, Siriwardena D, Drummer C, Clark S, Strawbridge SE, Kishimoto K, Vickers A, Tewary M, Kohler TN, Hollfelder F, Reik W, Sasaki E, Behr R, Boroviak TE. Spatial profiling of early primate gastrulation in utero. Nature 2022; 609:136-143. [PMID: 35709828 PMCID: PMC7614364 DOI: 10.1038/s41586-022-04953-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 06/08/2022] [Indexed: 11/09/2022]
Abstract
Gastrulation controls the emergence of cellular diversity and axis patterning in the early embryo. In mammals, this transformation is orchestrated by dynamic signalling centres at the interface of embryonic and extraembryonic tissues1-3. Elucidating the molecular framework of axis formation in vivo is fundamental for our understanding of human development4-6 and to advance stem-cell-based regenerative approaches7. Here we illuminate early gastrulation of marmoset embryos in utero using spatial transcriptomics and stem-cell-based embryo models. Gaussian process regression-based 3D transcriptomes delineate the emergence of the anterior visceral endoderm, which is hallmarked by conserved (HHEX, LEFTY2, LHX1) and primate-specific (POSTN, SDC4, FZD5) factors. WNT signalling spatially coordinates the formation of the primitive streak in the embryonic disc and is counteracted by SFRP1 and SFRP2 to sustain pluripotency in the anterior domain. Amnion specification occurs at the boundaries of the embryonic disc through ID1, ID2 and ID3 in response to BMP signalling, providing a developmental rationale for amnion differentiation of primate pluripotent stem cells (PSCs). Spatial identity mapping demonstrates that primed marmoset PSCs exhibit the highest similarity to the anterior embryonic disc, whereas naive PSCs resemble the preimplantation epiblast. Our 3D transcriptome models reveal the molecular code of lineage specification in the primate embryo and provide an in vivo reference to decipher human development.
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Affiliation(s)
- Sophie Bergmann
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Jeffrey Cheah Biomedical Centre, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Christopher A Penfold
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Jeffrey Cheah Biomedical Centre, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
- Wellcome Trust-Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, UK
| | - Erin Slatery
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Jeffrey Cheah Biomedical Centre, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Dylan Siriwardena
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Jeffrey Cheah Biomedical Centre, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Charis Drummer
- Research Platform Degenerative Diseases, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Stephen Clark
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Epigenetics Programme, Babraham Institute, Cambridge, UK
| | - Stanley E Strawbridge
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Jeffrey Cheah Biomedical Centre, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Keiko Kishimoto
- Department of Marmoset Biology and Medicine, Central Institute for Experimental Animals, Kawasaki, Japan
| | - Alice Vickers
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, UK
| | - Mukul Tewary
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, UK
| | - Timo N Kohler
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | | | - Wolf Reik
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Epigenetics Programme, Babraham Institute, Cambridge, UK
| | - Erika Sasaki
- Department of Marmoset Biology and Medicine, Central Institute for Experimental Animals, Kawasaki, Japan
| | - Rüdiger Behr
- Research Platform Degenerative Diseases, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Thorsten E Boroviak
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK.
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
- Jeffrey Cheah Biomedical Centre, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK.
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15
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Pham TXA, Panda A, Kagawa H, To SK, Ertekin C, Georgolopoulos G, van Knippenberg SSFA, Allsop RN, Bruneau A, Chui JSH, Vanheer L, Janiszewski A, Chappell J, Oberhuemer M, Tchinda RS, Talon I, Khodeer S, Rossant J, Lluis F, David L, Rivron N, Balaton BP, Pasque V. Modeling human extraembryonic mesoderm cells using naive pluripotent stem cells. Cell Stem Cell 2022; 29:1346-1365.e10. [PMID: 36055191 PMCID: PMC9438972 DOI: 10.1016/j.stem.2022.08.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/08/2022] [Accepted: 08/05/2022] [Indexed: 12/31/2022]
Abstract
A hallmark of primate postimplantation embryogenesis is the specification of extraembryonic mesoderm (EXM) before gastrulation, in contrast to rodents where this tissue is formed only after gastrulation. Here, we discover that naive human pluripotent stem cells (hPSCs) are competent to differentiate into EXM cells (EXMCs). EXMCs are specified by inhibition of Nodal signaling and GSK3B, are maintained by mTOR and BMP4 signaling activity, and their transcriptome and epigenome closely resemble that of human and monkey embryo EXM. EXMCs are mesenchymal, can arise from an epiblast intermediate, and are capable of self-renewal. Thus, EXMCs arising via primate-specific specification between implantation and gastrulation can be modeled in vitro. We also find that most of the rare off-target cells within human blastoids formed by triple inhibition (Kagawa et al., 2021) correspond to EXMCs. Our study impacts our ability to model and study the molecular mechanisms of early human embryogenesis and related defects.
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Affiliation(s)
- Thi Xuan Ai Pham
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Amitesh Panda
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Harunobu Kagawa
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), 1030 Vienna, Austria
| | - San Kit To
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Cankat Ertekin
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Grigorios Georgolopoulos
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Sam S F A van Knippenberg
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Ryan Nicolaas Allsop
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Alexandre Bruneau
- Nantes Université, CHU Nantes, Inserm, CR2TI, UMR 1064, F-44000, Nantes, France
| | - Jonathan Sai-Hong Chui
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Lotte Vanheer
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Adrian Janiszewski
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Joel Chappell
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Michael Oberhuemer
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Raissa Songwa Tchinda
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Irene Talon
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Sherif Khodeer
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Janet Rossant
- Program in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, ON M5V 0B1, Canada
| | - Frederic Lluis
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium
| | - Laurent David
- Nantes Université, CHU Nantes, Inserm, CR2TI, UMR 1064, F-44000, Nantes, France; Nantes Université, CHU Nantes, Inserm, CNRS, BioCore, F-44000 Nantes, France
| | - Nicolas Rivron
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), 1030 Vienna, Austria
| | - Bradley Philip Balaton
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium.
| | - Vincent Pasque
- Department of Development and Regeneration, Leuven Stem Cell Institute, Leuven Institute for Single-cell Omics (LISCO), KU Leuven-University of Leuven, 3000 Leuven, Belgium.
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16
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Cao T, Cui Y, Wang Y, Wu L, Yu K, Chen K, Xia J, Li Y, Wang ZP, Ma J. CACNA1C-AS2 inhibits cell proliferation and suppresses cell migration and invasion via targeting FBXO45 and PI3K/AKT/mTOR pathways in glioma. Apoptosis 2022; 27:979-991. [PMID: 36038736 DOI: 10.1007/s10495-022-01764-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2022] [Indexed: 11/30/2022]
Abstract
Glioma is the most common brain cancer with a poor prognosis, and its underlying molecular mechanisms still needs to be further explored. In the current study, we discovered that an antisense lncRNA, CACNA1C-AS2, suppressed growth, migration and invasion of glioma cells, suggesting that CACNA1C-AS2 functions as a tumor suppressor. Furthermore, we found that CACNA1C-AS2 negatively regulated Fbxo45 protein expression in glioma cells. Impressively, extensive experimental results revealed that Fbxo45 accelerated growth, migration and invasion of glioma cells. Clinically, increased Fbxo45 expression was observed in 75 human glioma tissue samples. Moreover, in vivo experiments also demonstrated that Fbxo45 overexpression enhanced tumor growth in mice. Especially, we further identified that Fbxo45 activated mTORC1 rather than mTORC2 through PI3K/AKT signaling to promote cell growth and motility in glioma cells. Rescue experiments also exhibited that CACNA1C-AS2 inhibited cell growth and motility partly through down-regulating Fbxo45 expression in glioma. Our results provide the novel insights into the critical role of CACNA1C-AS2/Fbxo45/mTOR axis involved in regulating glioma tumorigenesis and progression, and further indicate that CACNA1C-AS2 and Fbxo45 may be the potential biomarkers and therapeutic targets for glioma.
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Affiliation(s)
- Tong Cao
- Department of Clinical Laboratory, the First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, Anhui, China.,Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu Medical College, Bengbu, 233030, Anhui, China
| | - Yue Cui
- Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu Medical College, Bengbu, 233030, Anhui, China.,Department of Clinical Laboratory, Fuyang People's Hospital, Fuyang, 236001, Anhui, China
| | - Yingying Wang
- Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu Medical College, Bengbu, 233030, Anhui, China
| | - Linhui Wu
- Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu Medical College, Bengbu, 233030, Anhui, China.,Clinical Laboratory Center, Lu'an People's Hospital, The Lu'an Affiliated Hospital of Anhui Medical University, Lu'an, 237000, Anhui, China
| | - Ke Yu
- Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu Medical College, Bengbu, 233030, Anhui, China
| | - Kai Chen
- Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu Medical College, Bengbu, 233030, Anhui, China
| | - Jun Xia
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Street, Bengbu, 233030, Anhui, China
| | - Yuyun Li
- Department of Clinical Laboratory Diagnostics, School of Laboratory Medicine, Bengbu Medical College, Bengbu, 233030, Anhui, China
| | - Zhiwei Peter Wang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Street, Bengbu, 233030, Anhui, China. .,Center of Scientific Research, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China.
| | - Jia Ma
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Street, Bengbu, 233030, Anhui, China.
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17
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Ávila-González D, Portillo W, Barragán-Álvarez CP, Hernandez-Montes G, Flores-Garza E, Molina-Hernández A, Diaz-Martinez NE, Diaz NF. The human amniotic epithelium confers a bias to differentiate toward the neuroectoderm lineage in human embryonic stem cells. eLife 2022; 11:68035. [PMID: 35815953 PMCID: PMC9313526 DOI: 10.7554/elife.68035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/08/2022] [Indexed: 11/28/2022] Open
Abstract
Human embryonic stem cells (hESCs) derive from the epiblast and have pluripotent potential. To maintain the conventional conditions of the pluripotent potential in an undifferentiated state, inactivated mouse embryonic fibroblast (iMEF) is used as a feeder layer. However, it has been suggested that hESC under this conventional condition (hESC-iMEF) is an artifact that does not correspond to the in vitro counterpart of the human epiblast. Our previous studies demonstrated the use of an alternative feeder layer of human amniotic epithelial cells (hAECs) to derive and maintain hESC. We wondered if the hESC-hAEC culture could represent a different pluripotent stage than that of naïve or primed conventional conditions, simulating the stage in which the amniotic epithelium derives from the epiblast during peri-implantation. Like the conventional primed hESC-iMEF, hESC-hAEC has the same levels of expression as the ‘pluripotency core’ and does not express markers of naïve pluripotency. However, it presents a downregulation of HOX genes and genes associated with the endoderm and mesoderm, and it exhibits an increase in the expression of ectoderm lineage genes, specifically in the anterior neuroectoderm. Transcriptome analysis showed in hESC-hAEC an upregulated signature of genes coding for transcription factors involved in neural induction and forebrain development, and the ability to differentiate into a neural lineage was superior in comparison with conventional hESC-iMEF. We propose that the interaction of hESC with hAEC confers hESC a biased potential that resembles the anteriorized epiblast, which is predisposed to form the neural ectoderm.
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Affiliation(s)
- Daniela Ávila-González
- Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Mexico City, Mexico
| | - Wendy Portillo
- Behavioral and Cognitive Neurobiology, Universidad Nacional Autónoma de México, Querétaro, Mexico
| | - Carla P Barragán-Álvarez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Guadalajara, Mexico
| | | | - Eliezer Flores-Garza
- Departamento de Biología Molecular y Biotecnología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Anayansi Molina-Hernández
- Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Mexico City, Mexico
| | | | - Nestor F Diaz
- Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Mexico City, Mexico
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18
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Allègre N, Chauveau S, Dennis C, Renaud Y, Meistermann D, Estrella LV, Pouchin P, Cohen-Tannoudji M, David L, Chazaud C. NANOG initiates epiblast fate through the coordination of pluripotency genes expression. Nat Commun 2022; 13:3550. [PMID: 35729116 PMCID: PMC9213552 DOI: 10.1038/s41467-022-30858-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 05/24/2022] [Indexed: 12/20/2022] Open
Abstract
The epiblast is the source of all mammalian embryonic tissues and of pluripotent embryonic stem cells. It differentiates alongside the primitive endoderm in a “salt and pepper” pattern from inner cell mass (ICM) progenitors during the preimplantation stages through the activity of NANOG, GATA6 and the FGF pathway. When and how epiblast lineage specification is initiated is still unclear. Here, we show that the coordinated expression of pluripotency markers defines epiblast identity. Conversely, ICM progenitor cells display random cell-to-cell variability in expression of various pluripotency markers, remarkably dissimilar from the epiblast signature and independently from NANOG, GATA6 and FGF activities. Coordination of pluripotency markers expression fails in Nanog and Gata6 double KO (DKO) embryos. Collectively, our data suggest that NANOG triggers epiblast specification by ensuring the coordinated expression of pluripotency markers in a subset of cells, implying a stochastic mechanism. These features are likely conserved, as suggested by analysis of human embryos. Pluripotent epiblast cells segregate from primitive endoderm in the blastocyst inner cell mass (ICM). Here the authors show that mosaic epiblast differentiation during mouse and human preimplantation development initiates stochastically in ICM progenitors, independently of the FGF pathway, and requires NANOG activity
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Affiliation(s)
- Nicolas Allègre
- Université Clermont Auvergne, CNRS, INSERM, GReD Institute, Faculté de Médecine, F-63000, Clermont-Ferrand, France
| | - Sabine Chauveau
- Université Clermont Auvergne, CNRS, INSERM, GReD Institute, Faculté de Médecine, F-63000, Clermont-Ferrand, France
| | - Cynthia Dennis
- Université Clermont Auvergne, CNRS, INSERM, GReD Institute, Faculté de Médecine, F-63000, Clermont-Ferrand, France
| | - Yoan Renaud
- Université Clermont Auvergne, CNRS, INSERM, GReD Institute, Faculté de Médecine, F-63000, Clermont-Ferrand, France.,Byonet, 19 rue du courait, F-63200, Riom, France
| | - Dimitri Meistermann
- Université de Nantes, CHU Nantes, INSERM, CR2TI, UMR 1064, ITUN, F-44000, Nantes, France.,Université de Nantes, CNRS, LS2N, CNRS UMR 6004, F-44000, Nantes, France
| | - Lorena Valverde Estrella
- Université Clermont Auvergne, CNRS, INSERM, GReD Institute, Faculté de Médecine, F-63000, Clermont-Ferrand, France
| | - Pierre Pouchin
- Université Clermont Auvergne, CNRS, INSERM, GReD Institute, Faculté de Médecine, F-63000, Clermont-Ferrand, France
| | - Michel Cohen-Tannoudji
- Institut Pasteur, Université Paris Cité, CNRS UMR3738, Epigenomics, Proliferation, and the Identity of Cells, Department of Developmental and Stem Cell Biology, F-75015, Paris, France
| | - Laurent David
- Université de Nantes, CHU Nantes, INSERM, CR2TI, UMR 1064, ITUN, F-44000, Nantes, France.,Université de Nantes, CHU Nantes, INSERM, CNRS, UMS Biocore, INSERM UMS 016, CNRS UMS 3556, F-44000, Nantes, France
| | - Claire Chazaud
- Université Clermont Auvergne, CNRS, INSERM, GReD Institute, Faculté de Médecine, F-63000, Clermont-Ferrand, France.
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19
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Comparative parallel multi-omics analysis during the induction of pluripotent and trophectoderm states. Nat Commun 2022; 13:3475. [PMID: 35715410 PMCID: PMC9205865 DOI: 10.1038/s41467-022-31131-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/31/2022] [Indexed: 11/09/2022] Open
Abstract
Following fertilization, it is only at the 32-64-cell stage when a clear segregation between cells of the inner cell mass and trophectoderm is observed, suggesting a 'T'-shaped model of specification. Here, we examine whether the acquisition of these two states in vitro, by nuclear reprogramming, share similar dynamics/trajectories. Using a comparative parallel multi-omics analysis (i.e., bulk RNA-seq, scRNA-seq, ATAC-seq, ChIP-seq, RRBS and CNVs) on cells undergoing reprogramming to pluripotency and TSC state we show that each reprogramming system exhibits specific trajectories from the onset of the process, suggesting 'V'-shaped model. We describe in detail the various trajectories toward the two states and illuminate reprogramming stage-specific markers, blockers, facilitators and TSC subpopulations. Finally, we show that while the acquisition of the TSC state involves the silencing of embryonic programs by DNA methylation, during the acquisition of pluripotency these regions are initially defined but retain inactive by the elimination of H3K27ac.
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20
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Kuramoto Y, Takagi T, Takeda Y, Rajbhandari S, Yoshida Y, Nakagomi T, Yoshimura S. Identification of novel multipotent stem cells in mouse spinal cord following traumatic injury. Stem Cells Dev 2022; 31:555-568. [PMID: 35708107 DOI: 10.1089/scd.2021.0297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We showed that injury-induced multipotent stem cells (iSCs) emerge in the brain after stroke. These brain-derived iSCs (B-iSCs) can differentiate into various lineages, including neurons. This study aimed to determine whether similar stem cells can be induced even after non-ischemic injuries, such as trauma to the spinal cord. We characterized these cells, mainly focusing on their stemness, multipotency, and neuronal differentiation activities. Spinal cord injury was produced using forceps in adult mice. On day 3 after spinal cord injury, samples were obtained from the injured areas. Spinal cord sections were subjected to histological analyses. Cells were isolated and assessed for proliferative activities, immunohistochemistry, RT-PCR, FACS, and microarray analysis. Although nerve cell morphology was disrupted within the injured spinal cord, our histological observations revealed the presence of cells expressing stem cells, such as nestin and Sox2 in these areas. In addition, cells extracted from injured areas exhibited high proliferative abilities. These cells also expressed markers of both neural stem cells (e.g., nestin, Sox2) and multipotent stem cells (e.g., Sox2, c-myc, Klf4). They differentiated into adipocytes, osteocytes and chondrocytes, as well as neuronal cells. Microarray analysis further identified similar properties between spinal cord (SC)-derived iSCs and B-iSCs. However, SC-iSCs revealed specific genes related to the regulation of stemness and neurogenesis. We identified similar features related to multipotency in SC-iSCs compared to B-iSCs, including neuronal differentiation potential. Although the differences between SC-iSCs and B-iSCs remain largely undetermined, the present study shows that iSCs can develop even after non-ischemic injuries such as trauma. This phenomenon can occur outside the brain within the CNS.
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Affiliation(s)
- Yoji Kuramoto
- Hyogo College of Medicine, 12818, Neurosurgery, 1-1, Mukogawa-cho, Nishinomiya, Japan, 663-8501;
| | - Toshinori Takagi
- Hyogo College of Medicine, 12818, Neurosurgery, Nishinomiya, Hyogo, Japan;
| | - Yuki Takeda
- Hyogo College of Medicine, 12818, Neurosurgery, Nishinomiya, Japan;
| | | | - Yasunori Yoshida
- Hyogo College of Medicine, 12818, Neurosurgery, Nishinomiya, Japan;
| | - Takayuki Nakagomi
- Hyogo College of Medicine, 12818, Institute for Advanced Medical Sciences, Nishinomiya, Hyogo, Japan.,Hyogo College of Medicine, 12818, Therapeutic Progress in Brain Diseases, Nishinomiya, Hyogo, Japan;
| | - Shinichi Yoshimura
- Hyogo College of Medicine, 12818, Neurosurgery, Nishinomiya, Japan.,Hyogo College of Medicine, 12818, Institute for Advanced Medical Sciences, Nishinomiya, Hyogo, Japan;
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21
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Subventricular zone adult mouse neural stem cells require insulin receptor for self-renewal. Stem Cell Reports 2022; 17:1411-1427. [PMID: 35523180 PMCID: PMC9213826 DOI: 10.1016/j.stemcr.2022.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 11/25/2022] Open
Abstract
The insulin receptor (INSR) is an evolutionarily conserved signaling protein that regulates development and cellular metabolism. INSR signaling promotes neurogenesis in Drosophila; however, a specific role for the INSR in maintaining adult neural stem cells (NSCs) in mammals has not been investigated. We show that conditionally deleting the Insr gene in adult mouse NSCs reduces subventricular zone NSCs by ∼70% accompanied by a corresponding increase in progenitors. Insr deletion also produced hyposmia caused by aberrant olfactory bulb neurogenesis. Interestingly, hippocampal neurogenesis and hippocampal-dependent behaviors were unperturbed. Highly aggressive proneural and mesenchymal glioblastomas had high INSR/insulin-like growth factor (IGF) pathway gene expression, and isolated glioma stem cells had an aberrantly high ratio of INSR:IGF type 1 receptor. Moreover, INSR knockdown inhibited GBM tumorsphere growth. Altogether, these data demonstrate that the INSR is essential for a subset of normal NSCs, as well as for brain tumor stem cell self-renewal. Insulin receptor (INSR) is essential for adult SVZ neural stem cell self-renewal INSR deletion causes hyposmia with increased olfactory bulb neurogenesis Hippocampal stem cells (and associated behaviors) do not require INSR Glioblastomas overexpress INSR pathway components required for tumorsphere growth
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22
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Mennen R, Hallmark N, Pallardy M, Bars R, Tinwell H, Piersma A. Genome-wide expression screening in the cardiac embryonic stem cell test shows additional differentiation routes that are regulated by morpholines and piperidines. Curr Res Toxicol 2022; 3:100086. [PMID: 36157598 PMCID: PMC9489494 DOI: 10.1016/j.crtox.2022.100086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 08/08/2022] [Accepted: 09/08/2022] [Indexed: 11/29/2022] Open
Abstract
The cardiac embryonic stem cell test showed additional differentiation routes. Morpholines and piperidines regulated the alternative differentiation routes. The gene expression levels help in understanding the applicability domain.
The cardiac embryonic stem cell test (ESTc) is a well-studied non-animal alternative test method based on cardiac cell differentiation inhibition as a measure for developmental toxicity of tested chemicals. In the ESTc, a heterogenic cell population is generated besides cardiomyocytes. Using the full biological domain of ESTc may improve the sensitivity of the test system, possibly broadening the range of chemicals for which developmental effects can be detected in the test. In order to improve our knowledge of the biological and chemical applicability domains of the ESTc, we applied a hypothesis-generating data-driven approach on control samples as follows. A genome-wide expression screening was performed, using Next Generation Sequencing (NGS), to map the range of developmental pathways in the ESTc and to search for a predictive embryotoxicity biomarker profile, instead of the conventional read-out of beating cardiomyocytes. The detected developmental pathways included circulatory system development, skeletal system development, heart development, muscle and organ tissue development, and nervous system and cell development. Two pesticidal chemical classes, the morpholines and piperidines, were assessed for perturbation of differentiation in the ESTc using NGS. In addition to the anticipated impact on cardiomyocyte differentiation, the other developmental pathways were also regulated, in a concentration–response fashion. Despite the structural differences between the morpholine and piperidine pairs, their gene expression effect patterns were largely comparable. In addition, some chemical-specific gene regulation was also observed, which may help with future mechanistic understanding of specific effects with individual test compounds. These similar and unique regulations of gene expression profiles by the test compounds, adds to our knowledge of the chemical applicability domain, specificity and sensitivity of the ESTc. Knowledge of both the biological and chemical applicability domain contributes to the optimal placement of ESTc in test batteries and in Integrated Approaches to Testing and Assessment (IATA).
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Affiliation(s)
- R.H. Mennen
- Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
- Corresponding author at: National Institute for Public Health and Environment (RIVM), Centre for Health Protection (GZB), Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, The Netherlands.
| | - N. Hallmark
- Bayer AG Crop Science Division, Monheim, Germany
| | - M. Pallardy
- Inflammation, Microbiome and Immunosurveillance, Université Paris-Saclay, INSERM UMR996, Châtenay-Malabry 92296, France
| | - R. Bars
- Bayer Crop Science, Sophia-Antipolis, France
| | - H. Tinwell
- Bayer Crop Science, Sophia-Antipolis, France
| | - A.H. Piersma
- Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, the Netherlands
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23
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Lea RA, McCarthy A, Boeing S, Fallesen T, Elder K, Snell P, Christie L, Adkins S, Shaikly V, Taranissi M, Niakan KK. KLF17 promotes human naïve pluripotency but is not required for its establishment. Development 2021; 148:272511. [PMID: 34661235 PMCID: PMC8645209 DOI: 10.1242/dev.199378] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 10/11/2021] [Indexed: 12/11/2022]
Abstract
Current knowledge of the transcriptional regulation of human pluripotency is incomplete, with lack of interspecies conservation observed. Single-cell transcriptomics analysis of human embryos previously enabled us to identify transcription factors, including the zinc-finger protein KLF17, that are enriched in the human epiblast and naïve human embryonic stem cells (hESCs). Here, we show that KLF17 is expressed coincident with the known pluripotency-associated factors NANOG and SOX2 across human blastocyst development. We investigate the function of KLF17 using primed and naïve hESCs for gain- and loss-of-function analyses. We find that ectopic expression of KLF17 in primed hESCs is sufficient to induce a naïve-like transcriptome and that KLF17 can drive transgene-mediated resetting to naïve pluripotency. This implies a role for KLF17 in establishing naïve pluripotency. However, CRISPR-Cas9-mediated knockout studies reveal that KLF17 is not required for naïve pluripotency acquisition in vitro. Transcriptome analysis of naïve hESCs identifies subtle effects on metabolism and signalling pathways following KLF17 loss of function, and possible redundancy with other KLF paralogues. Overall, we show that KLF17 is sufficient, but not necessary, for naïve pluripotency under the given in vitro conditions. Summary: Given that KLF17 was shown to be sufficient, but not necessary, to establish naïve pluripotent hESCs, KLF17 might function as a peripheral regulator of human pluripotent stem cells.
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Affiliation(s)
- Rebecca A Lea
- Human Embryo and Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Afshan McCarthy
- Human Embryo and Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Stefan Boeing
- Bioinformatics and Biostatistics Service, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Todd Fallesen
- Crick Advanced Light Microscopy, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Kay Elder
- Bourn Hall Clinic, Bourn, Cambridge CB23 2TN, UK
| | - Phil Snell
- Bourn Hall Clinic, Bourn, Cambridge CB23 2TN, UK
| | | | - Sarah Adkins
- Assisted Reproduction and Gynaecology Centre, London W1G 6LP, UK
| | - Valerie Shaikly
- Assisted Reproduction and Gynaecology Centre, London W1G 6LP, UK
| | | | - Kathy K Niakan
- Human Embryo and Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK.,The Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
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24
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Maity P, Singh K, Krug L, Koroma A, Hainzl A, Bloch W, Kochanek S, Wlaschek M, Schorpp-Kistner M, Angel P, Ignatius A, Geiger H, Scharffetter-Kochanek K. Persistent JunB activation in fibroblasts disrupts stem cell niche interactions enforcing skin aging. Cell Rep 2021; 36:109634. [PMID: 34469740 DOI: 10.1016/j.celrep.2021.109634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 06/15/2021] [Accepted: 08/09/2021] [Indexed: 01/02/2023] Open
Abstract
Fibroblasts residing in the connective tissues constitute the stem cell niche, particularly in organs such as skin. Although the effect of fibroblasts on stem cell niches and organ aging is an emerging concept, the underlying mechanisms are largely unresolved. We report a mechanism of redox-dependent activation of transcription factor JunB, which, through concomitant upregulation of p16INK4A and repression of insulin growth factor-1 (IGF-1), initiates the installment of fibroblast senescence. Fibroblast senescence profoundly disrupts the metabolic and structural niche, and its essential interactions with different stem cells thus enforces depletion of stem cells pools and skin tissue decline. In fact, silencing of JunB in a fibroblast-niche-specific manner-by reinstatement of IGF-1 and p16 levels-restores skin stem cell pools and overall skin tissue integrity. Here, we report a role of JunB in the control of connective tissue niche and identified targets to combat skin aging and associated pathologies.
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Affiliation(s)
- Pallab Maity
- Department of Dermatology and Allergic Diseases, Ulm University, 89081 Ulm, Germany; Aging Research Center (ARC), 89081 Ulm, Germany.
| | - Karmveer Singh
- Department of Dermatology and Allergic Diseases, Ulm University, 89081 Ulm, Germany; Aging Research Center (ARC), 89081 Ulm, Germany
| | - Linda Krug
- Department of Dermatology and Allergic Diseases, Ulm University, 89081 Ulm, Germany
| | - Albert Koroma
- Department of Dermatology and Allergic Diseases, Ulm University, 89081 Ulm, Germany; Aging Research Center (ARC), 89081 Ulm, Germany
| | - Adelheid Hainzl
- Department of Dermatology and Allergic Diseases, Ulm University, 89081 Ulm, Germany
| | - Wilhelm Bloch
- Institute of Cardiology and Sports Medicine, Molecular and cellular Sports Medicine, German Sport University Cologne, 50933 Cologne, Germany
| | - Stefan Kochanek
- Department of Gene Therapy, University of Ulm, 89081 Ulm, Germany
| | - Meinhard Wlaschek
- Department of Dermatology and Allergic Diseases, Ulm University, 89081 Ulm, Germany
| | - Marina Schorpp-Kistner
- Division of Signal Transduction and Growth Control, German Cancer Research Center (DKFZ) and DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany
| | - Peter Angel
- Division of Signal Transduction and Growth Control, German Cancer Research Center (DKFZ) and DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany
| | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, Ulm University, 89081 Ulm, Germany
| | - Hartmut Geiger
- Aging Research Center (ARC), 89081 Ulm, Germany; Institute of Molecular Medicine and Stem Cell Aging, Ulm University, 89081 Ulm, Germany; Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, OH 45229, USA
| | - Karin Scharffetter-Kochanek
- Department of Dermatology and Allergic Diseases, Ulm University, 89081 Ulm, Germany; Aging Research Center (ARC), 89081 Ulm, Germany.
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25
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miR-302 Attenuates Mutant Huntingtin-Induced Cytotoxicity through Restoration of Autophagy and Insulin Sensitivity. Int J Mol Sci 2021; 22:ijms22168424. [PMID: 34445125 PMCID: PMC8395150 DOI: 10.3390/ijms22168424] [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: 06/11/2021] [Revised: 07/25/2021] [Accepted: 07/30/2021] [Indexed: 01/18/2023] Open
Abstract
Huntington’s disease (HD) is an autosomal-dominant brain disorder caused by mutant huntingtin (mHtt). Although the detailed mechanisms remain unclear, the mutational expansion of polyglutamine in mHtt is proposed to induce protein aggregates and neuronal toxicity. Previous studies have shown that the decreased insulin sensitivity is closely related to mHtt-associated impairments in HD patients. However, how mHtt interferes with insulin signaling in neurons is still unknown. In the present study, we used a HD cell model to demonstrate that the miR-302 cluster, an embryonic stem cell-specific polycistronic miRNA, is significantly downregulated in mHtt-Q74-overexpressing neuronal cells. On the contrary, restoration of miR-302 cluster was shown to attenuate mHtt-induced cytotoxicity by improving insulin sensitivity, leading to a reduction of mHtt aggregates through the enhancement of autophagy. In addition, miR-302 also promoted mitophagy and stimulated Sirt1/AMPK-PGC1α pathway thereby preserving mitochondrial function. Taken together, these results highlight the potential role of miR-302 cluster in neuronal cells, and provide a novel mechanism for mHtt-impaired insulin signaling in the pathogenesis of HD.
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26
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Liu Y, Nelson MV, Bailey C, Zhang P, Zheng P, Dome JS, Liu Y, Wang Y. Targeting the HIF-1α-IGFBP2 axis therapeutically reduces IGF1-AKT signaling and blocks the growth and metastasis of relapsed anaplastic Wilms tumor. Oncogene 2021; 40:4809-4819. [PMID: 34155347 PMCID: PMC8319145 DOI: 10.1038/s41388-021-01907-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/13/2021] [Accepted: 06/10/2021] [Indexed: 02/05/2023]
Abstract
For patients with anaplastic Wilms tumor (WiT), metastasis and recurrence are common, and prognosis is generally poor. Novel therapies are needed to improve outcomes for patients with this high-risk WiT. A potential contributor to WiT development is constitutive activation of AKT by insulin-like growth factor 1 (IGF1) and its receptor (IGF1R) signaling pathway, but the complete underlying mechanism remains unclear. Here, we demonstrate that the hypoxia-inducible factor 1α (HIF-1α)-IGF binding protein 2 (IGFBP2) axis and the tumor-specific IGF1A are key players for constitutive activation of IGF1-AKT signaling leading to the tumor malignancy. HIF-1α and IGFBP2 are highly expressed in a majority of WiT patient samples. Deficiency of either HIF-1α or IGFBP2 or IGF1 in the tumor cells significantly impairs tumor growth and nearly abrogates metastasis in xenografted mice. Pharmacologic targeting of HIF-1α by echinomycin delivered via nanoliposomes can efficiently restrain growth and metastasis of patient-derived relapsed anaplastic WiT xenografts. Liposomal echinomycin is more potent and effective in inhibiting WiT growth than vincristine in an anaplastic WiT mouse model, and eliminates metastasis by suppressing HIF-1α targets and the HIF-1α-IGFBP2 axis, which governs IGF1-AKT signaling.
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Affiliation(s)
- Yan Liu
- Division of Cancer and Immunology Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Marie V Nelson
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA
| | - Christopher Bailey
- Division of Cancer and Immunology Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Peng Zhang
- Division of Cancer and Immunology Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Pan Zheng
- Division of Cancer and Immunology Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
- OncoC4, Inc, Rockville, MD, USA
| | - Jeffrey S Dome
- Center for Cancer and Immunology Research, Children's National Hospital, Washington, DC, USA
| | - Yang Liu
- Division of Cancer and Immunology Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
- OncoC4, Inc, Rockville, MD, USA.
| | - Yin Wang
- Division of Cancer and Immunology Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
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27
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Ávila-González D, Portillo W, García-López G, Molina-Hernández A, Díaz-Martínez NE, Díaz NF. Unraveling the Spatiotemporal Human Pluripotency in Embryonic Development. Front Cell Dev Biol 2021; 9:676998. [PMID: 34249929 PMCID: PMC8262797 DOI: 10.3389/fcell.2021.676998] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 05/21/2021] [Indexed: 11/13/2022] Open
Abstract
There have been significant advances in understanding human embryogenesis using human pluripotent stem cells (hPSCs) in conventional monolayer and 3D self-organized cultures. Thus, in vitro models have contributed to elucidate the molecular mechanisms for specification and differentiation during development. However, the molecular and functional spectrum of human pluripotency (i.e., intermediate states, pluripotency subtypes and regionalization) is still not fully understood. This review describes the mechanisms that establish and maintain pluripotency in human embryos and their differences with mouse embryos. Further, it describes a new pluripotent state representing a transition between naïve and primed pluripotency. This review also presents the data that divide pluripotency into substates expressing epiblast regionalization and amnion specification as well as primordial germ cells in primates. Finally, this work analyzes the amnion's relevance as an "signaling center" for regionalization before the onset of gastrulation.
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Affiliation(s)
- Daniela Ávila-González
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Mexico
- Instituto Nacional de Perinatología, Mexico City, Mexico
| | - Wendy Portillo
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Mexico
| | | | | | - Néstor E. Díaz-Martínez
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Guadalajara, Mexico
| | - Néstor F. Díaz
- Instituto Nacional de Perinatología, Mexico City, Mexico
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Molè MA, Coorens THH, Shahbazi MN, Weberling A, Weatherbee BAT, Gantner CW, Sancho-Serra C, Richardson L, Drinkwater A, Syed N, Engley S, Snell P, Christie L, Elder K, Campbell A, Fishel S, Behjati S, Vento-Tormo R, Zernicka-Goetz M. A single cell characterisation of human embryogenesis identifies pluripotency transitions and putative anterior hypoblast centre. Nat Commun 2021; 12:3679. [PMID: 34140473 PMCID: PMC8211662 DOI: 10.1038/s41467-021-23758-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 05/11/2021] [Indexed: 01/02/2023] Open
Abstract
Following implantation, the human embryo undergoes major morphogenetic transformations that establish the future body plan. While the molecular events underpinning this process are established in mice, they remain unknown in humans. Here we characterise key events of human embryo morphogenesis, in the period between implantation and gastrulation, using single-cell analyses and functional studies. First, the embryonic epiblast cells transition through different pluripotent states and act as a source of FGF signals that ensure proliferation of both embryonic and extra-embryonic tissues. In a subset of embryos, we identify a group of asymmetrically positioned extra-embryonic hypoblast cells expressing inhibitors of BMP, NODAL and WNT signalling pathways. We suggest that this group of cells can act as the anterior singalling centre to pattern the epiblast. These results provide insights into pluripotency state transitions, the role of FGF signalling and the specification of anterior-posterior axis during human embryo development.
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Affiliation(s)
- Matteo A Molè
- Department of Physiology, Development and Neuroscience, Mammalian Embryo and Stem Cell Group, University of Cambridge, Cambridge, UK
- Babraham Institute, Babraham Research Campus, Cambridge, UK
| | | | - Marta N Shahbazi
- Department of Physiology, Development and Neuroscience, Mammalian Embryo and Stem Cell Group, University of Cambridge, Cambridge, UK
- MRC Laboratory of Molecular Biology, Cambridge, UK
| | - Antonia Weberling
- Department of Physiology, Development and Neuroscience, Mammalian Embryo and Stem Cell Group, University of Cambridge, Cambridge, UK
| | - Bailey A T Weatherbee
- Department of Physiology, Development and Neuroscience, Mammalian Embryo and Stem Cell Group, University of Cambridge, Cambridge, UK
| | - Carlos W Gantner
- Department of Physiology, Development and Neuroscience, Mammalian Embryo and Stem Cell Group, University of Cambridge, Cambridge, UK
| | | | - Lucy Richardson
- Herts & Essex Fertility Centre, Bishops College, Cheshunt, Herts, UK
| | - Abbie Drinkwater
- Herts & Essex Fertility Centre, Bishops College, Cheshunt, Herts, UK
| | - Najma Syed
- Herts & Essex Fertility Centre, Bishops College, Cheshunt, Herts, UK
| | - Stephanie Engley
- Herts & Essex Fertility Centre, Bishops College, Cheshunt, Herts, UK
| | | | | | | | | | - Simon Fishel
- CARE Fertility Group, Nottingham, UK
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Sam Behjati
- Wellcome Sanger Institute, Hinxton, UK.
- Cambridge University Hospital, NHS Foundation Trust, Cambridge, UK.
- Department of Paediatrics, University of Cambridge, Cambridge, UK.
| | | | - Magdalena Zernicka-Goetz
- Department of Physiology, Development and Neuroscience, Mammalian Embryo and Stem Cell Group, University of Cambridge, Cambridge, UK.
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA.
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LeRoith D, Holly JMP, Forbes BE. Insulin-like growth factors: Ligands, binding proteins, and receptors. Mol Metab 2021; 52:101245. [PMID: 33962049 PMCID: PMC8513159 DOI: 10.1016/j.molmet.2021.101245] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/09/2021] [Accepted: 04/28/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND The insulin-like growth factor family of ligands (IGF-I, IGF-II, and insulin), receptors (IGF-IR, M6P/IGF-IIR, and insulin receptor [IR]), and IGF-binding proteins (IGFBP-1-6) play critical roles in normal human physiology and disease states. SCOPE OF REVIEW Insulin and insulin receptors are the focus of other chapters in this series and will therefore not be discussed further. Here we review the basic components of the IGF system, their role in normal physiology and in critical pathology's. While this review concentrates on the role of IGFs in human physiology, animal models have been essential in providing understanding of the IGF system, and its regulation, and are briefly described. MAJOR CONCLUSIONS IGF-I has effects via the circulation and locally within tissues to regulate cellular growth, differentiation, and survival, thereby controlling overall body growth. IGF-II levels are highest prenatally when it has important effects on growth. In adults, IGF-II plays important tissue-specific roles, including the maintenance of stem cell populations. Although the IGF-IR is closely related to the IR it has distinct physiological roles both on the cell surface and in the nucleus. The M6P/IGF-IIR, in contrast, is distinct and acts as a scavenger by mediating internalization and degradation of IGF-II. The IGFBPs bind IGF-I and IGF-II in the circulation to prolong their half-lives and modulate tissue access, thereby controlling IGF function. IGFBPs also have IGF ligand-independent cell effects.
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Affiliation(s)
- Derek LeRoith
- Division of Endocrinology, Diabetes and Bone Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jeff M P Holly
- Translational Health Sciences, Bristol Medical School, Learning & Research Building, Southmead Hospital, Bristol, BS10 5NB, UK.
| | - Briony E Forbes
- Discipline of Medical Biochemistry, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, 5042, Australia
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Llobat L. Pluripotency and Growth Factors in Early Embryonic Development of Mammals: A Comparative Approach. Vet Sci 2021; 8:vetsci8050078. [PMID: 34064445 PMCID: PMC8147802 DOI: 10.3390/vetsci8050078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 12/24/2022] Open
Abstract
The regulation of early events in mammalian embryonic development is a complex process. In the early stages, pluripotency, cellular differentiation, and growth should occur at specific times and these events are regulated by different genes that are expressed at specific times and locations. The genes related to pluripotency and cellular differentiation, and growth factors that determine successful embryonic development are different (or differentially expressed) among mammalian species. Some genes are fundamental for controlling pluripotency in some species but less fundamental in others, for example, Oct4 is particularly relevant in bovine early embryonic development, whereas Oct4 inhibition does not affect ovine early embryonic development. In addition, some mechanisms that regulate cellular differentiation do not seem to be clear or evolutionarily conserved. After cellular differentiation, growth factors are relevant in early development, and their effects also differ among species, for example, insulin-like growth factor improves the blastocyst development rate in some species but does not have the same effect in mice. Some growth factors influence genes related to pluripotency, and therefore, their role in early embryo development is not limited to cell growth but could also involve the earliest stages of development. In this review, we summarize the differences among mammalian species regarding the regulation of pluripotency, cellular differentiation, and growth factors in the early stages of embryonic development.
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Affiliation(s)
- Lola Llobat
- Research Group Microbiological Agents Associated with Animal Reproduction (PROVAGINBIO), Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology (PASAPTA) Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, 46113 Valencia, Spain
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31
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Mishra S, Taelman J, Popovic M, Tilleman L, Duthoo E, van der Jeught M, Deforce D, van Nieuwerburgh F, Menten B, de Sutter P, Boel A, Chuva De Sousa Lopes SM, Heindryckx B. Activin A-derived human embryonic stem cells show increased competence to differentiate into primordial germ cell-like cells. Stem Cells 2021; 39:551-563. [PMID: 33470497 PMCID: PMC8248136 DOI: 10.1002/stem.3335] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 12/21/2020] [Indexed: 12/14/2022]
Abstract
Protocols for specifying human primordial germ cell-like cells (hPGCLCs) from human embryonic stem cells (hESCs) remain hindered by differences between hESC lines, their derivation methods, and maintenance culture conditions. This poses significant challenges for establishing reproducible in vitro models of human gametogenesis. Here, we investigated the influence of activin A (ActA) during derivation and maintenance on the propensity of hESCs to differentiate into PGCLCs. We show that continuous ActA supplementation during hESC derivation (from blastocyst until the formation of the post-inner cell mass intermediate [PICMI]) and supplementation (from the first passage of the PICMI onwards) is beneficial to differentiate hESCs to PGCLCs subsequently. Moreover, comparing isogenic primed and naïve states prior to differentiation, we showed that conversion of hESCs to the 4i-state improves differentiation to (TNAP [tissue nonspecific alkaline phosphatase]+/PDPN [podoplanin]+) PGCLCs. Those PGCLCs expressed several germ cell markers, including TFAP2C (transcription factor AP-2 gamma), SOX17 (SRY-box transcription factor 17), and NANOS3 (nanos C2HC-type zinc finger 3), and markers associated with germ cell migration, CXCR4 (C-X-C motif chemokine receptor 4), LAMA4 (laminin subunit alpha 4), ITGA6 (integrin subunit alpha 6), and CDH4 (cadherin 4), suggesting that the large numbers of PGCLCs obtained may be suitable to differentiate further into more mature germ cells. Finally, hESCs derived in the presence of ActA showed higher competence to differentiate to hPGCLC, in particular if transiently converted to the 4i-state. Our work provides insights into the differences in differentiation propensity of hESCs and delivers an optimized protocol to support efficient human germ cell derivation.
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Affiliation(s)
- Swati Mishra
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
| | - Jasin Taelman
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
| | - Mina Popovic
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
| | - Laurentijn Tilleman
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical SciencesGhent UniversityGhentBelgium
| | - Evi Duthoo
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
| | - Margot van der Jeught
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
| | - Dieter Deforce
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical SciencesGhent UniversityGhentBelgium
| | - Filip van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical SciencesGhent UniversityGhentBelgium
| | - Björn Menten
- Department of Pediatrics and Medical Genetics, Center for Medical GeneticsGhent University HospitalGhentBelgium
| | - Petra de Sutter
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
| | - Annekatrien Boel
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
| | - Susana M. Chuva De Sousa Lopes
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
- Department of Anatomy and EmbryologyLeiden University Medical CentreLeidenThe Netherlands
| | - Björn Heindryckx
- Ghent‐Fertility and Stem cell Team (G‐FAST), Department of Reproductive MedicineGhent University HospitalGhentBelgium
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32
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Dziedzicka D, Tewary M, Keller A, Tilleman L, Prochazka L, Östblom J, Couvreu De Deckersberg E, Markouli C, Franck S, Van Nieuwerburgh F, Spits C, Zandstra PW, Sermon K, Geens M. Endogenous suppression of WNT signalling in human embryonic stem cells leads to low differentiation propensity towards definitive endoderm. Sci Rep 2021; 11:6137. [PMID: 33731744 PMCID: PMC7969605 DOI: 10.1038/s41598-021-85447-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/23/2021] [Indexed: 02/06/2023] Open
Abstract
Low differentiation propensity towards a targeted lineage can significantly hamper the utility of individual human pluripotent stem cell (hPSC) lines in biomedical applications. Here, we use monolayer and micropatterned cell cultures, as well as transcriptomic profiling, to investigate how variability in signalling pathway activity between human embryonic stem cell lines affects their differentiation efficiency towards definitive endoderm (DE). We show that endogenous suppression of WNT signalling in hPSCs at the onset of differentiation prevents the switch from self-renewal to DE specification. Gene expression profiling reveals that this inefficient switch is reflected in NANOG expression dynamics. Importantly, we demonstrate that higher WNT stimulation or inhibition of the PI3K/AKT signalling can overcome the DE commitment blockage. Our findings highlight that redirection of the activity of Activin/NODAL pathway by WNT signalling towards mediating DE fate specification is a vulnerable spot, as disruption of this process can result in poor hPSC specification towards DE.
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Affiliation(s)
- Dominika Dziedzicka
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Mukul Tewary
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada ,grid.13097.3c0000 0001 2322 6764Centre for Stem Cells and Regenerative Medicine, King’s College London, Guy’s Hospital, London, SE1 9RT UK
| | - Alexander Keller
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Laurentijn Tilleman
- grid.5342.00000 0001 2069 7798Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Laura Prochazka
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada
| | - Joel Östblom
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada
| | - Edouard Couvreu De Deckersberg
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Christina Markouli
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Silvie Franck
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Filip Van Nieuwerburgh
- grid.5342.00000 0001 2069 7798Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Claudia Spits
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Peter W. Zandstra
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada ,grid.17091.3e0000 0001 2288 9830Michael Smith Laboratories, University of British Columbia, Vancouver, BC V6T 1Z4 Canada ,grid.17091.3e0000 0001 2288 9830School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
| | - Karen Sermon
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Mieke Geens
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
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33
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Zhang F, Zhu Y, Chen J, Kuang W, Huang R, Duan F, Li Y, Wang L, Qiu H, Chen X, Ming J, Liu P, Du Y, Chang SCN, Chen L, Na J. Efficient endothelial and smooth muscle cell differentiation from human pluripotent stem cells through a simplified insulin-free culture system. Biomaterials 2021; 271:120713. [PMID: 33618219 DOI: 10.1016/j.biomaterials.2021.120713] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 01/19/2021] [Accepted: 02/06/2021] [Indexed: 02/07/2023]
Abstract
A major obstacle for using human pluripotent stem cells (hPSCs) derived vascular cells for cell therapy is the lack of simple, cost-saving, and scalable methods for cell production. Here we described a simplified and chemically defined medium (AATS) for endothelial cells (ECs) and smooth muscle cells (SMCs) differentiation. AATS medium does not contain insulin, enabling the rapid and highly efficient vascular mesoderm formation through accelerating metabolic and autophagy-enhanced mesoderm induction. Transcriptome profiling confirmed that hPSC-derived ECs and SMCs in the AATS medium closely resembled primary ECs and SMCs formed in vivo. ECs appeared to adhere and grow better in the AATS medium over other cell types, which allowed the purification of CD31+CD144+ double-positive cells. Furthermore, the AATS medium was compatible with 3D microscaffold (MS) culture, which may facilitate large-scale bioproduction of ECs. HPSC-derived ECs and SMCs in the AATS medium exhibited strong revascularization potential in treating murine ischemic models. Our study provided a cost-effective and efficient medium system to manufacture GMP compatible, off-the-shelf ECs, and SMCs to model human diseases and vascular repair.
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Affiliation(s)
- Fengzhi Zhang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yonglin Zhu
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Jing Chen
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Wenhua Kuang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Rujin Huang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Fuyu Duan
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yaqian Li
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Lin Wang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Hui Qiu
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Xia Chen
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Jia Ming
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Peng Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yanan Du
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | | | - Ligong Chen
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Jie Na
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China.
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34
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McCully S. The time has come to extend the 14-day limit. JOURNAL OF MEDICAL ETHICS 2021; 47:medethics-2020-106406. [PMID: 33531360 DOI: 10.1136/medethics-2020-106406] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/22/2020] [Accepted: 11/29/2020] [Indexed: 05/04/2023]
Abstract
For the past 40 years, the 14-day rule has governed and, by defining a clear boundary, enabled embryo research and the clinical benefits derived from this. It has been both a piece of legislation and a rule of good practice globally. However, methods now allow embryos to be cultured for more than 14 days, something difficult to imagine when the rule was established, and knowledge gained in the intervening years provides robust scientific rationale for why it is now essential to conduct research on later stage human embryos. In this paper, I argue that the current limit for embryo research in vitro should be extended to 28 days to permit research that will illuminate our beginnings as well as provide new therapeutic possibilities to reduce miscarriage and developmental abnormalities. It will also permit validation of potentially useful alternatives. Through consideration of current ethical arguments, I also conclude that there are no coherent or persuasive reasons to deny researchers, and through them humanity, the knowledge and the innovation that this will generate.
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Affiliation(s)
- Sophia McCully
- Department of Global Health and Social Medicine, King's College London, London, UK
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35
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Questa M, Moshref M, Jimenez RJ, Lopez‐Cervantes V, Crawford CK, Settles ML, Ross PJ, Kol A. Chromatin accessibility in canine stromal cells and its implications for canine somatic cell reprogramming. Stem Cells Transl Med 2020; 10:441-454. [PMID: 33210453 PMCID: PMC7900587 DOI: 10.1002/sctm.20-0278] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/15/2020] [Accepted: 10/09/2020] [Indexed: 12/17/2022] Open
Abstract
Naturally occurring disease in pet dogs is an untapped and unique resource for stem cell-based regenerative medicine translational research, given the many similarities and complexity such disease shares with their human counterparts. Canine-specific regulators of somatic cell reprogramming and pluripotency maintenance are poorly understood. While retroviral delivery of the four Yamanaka factors successfully reprogrammed canine embryonic fibroblasts, adult stromal cells remained resistant to reprogramming in spite of effective viral transduction and transgene expression. We hypothesized that adult stromal cells fail to reprogram due to an epigenetic barrier. Here, we performed assay for transposase-accessible chromatin using sequencing (ATAC-seq) on canine stromal and pluripotent stem cells, analyzing 51 samples in total, and establishing the global landscape of chromatin accessibility before and after reprogramming to induced pluripotent stem cells (iPSC). We also studied adult stromal cells that do not yield iPSC colonies to identify potential reprogramming barriers. ATAC-seq analysis identified distinct cell type clustering patterns and chromatin remodeling during embryonic fibroblast reprogramming. Compared with embryonic fibroblasts, adult stromal cells had a chromatin accessibility landscape that reflects phenotypic differentiation and somatic cell-fate stability. We ultimately identified 76 candidate genes and several transcription factor binding motifs that may be impeding somatic cell reprogramming to iPSC, and could be targeted for inhibition or activation, in order to improve the process in canines. These results provide a vast resource for better understanding of pluripotency regulators in dogs and provide an unbiased rationale for novel canine-specific reprogramming approaches.
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Affiliation(s)
- Maria Questa
- Department of Pathology, Microbiology and ImmunologySchool of Veterinary Medicine, University of California DavisDavisCaliforniaUSA
| | - Maryam Moshref
- Department of Pathology, Microbiology and ImmunologySchool of Veterinary Medicine, University of California DavisDavisCaliforniaUSA
| | - Robert J. Jimenez
- Department of Pathology, Microbiology and ImmunologySchool of Veterinary Medicine, University of California DavisDavisCaliforniaUSA
| | - Veronica Lopez‐Cervantes
- Department of Pathology, Microbiology and ImmunologySchool of Veterinary Medicine, University of California DavisDavisCaliforniaUSA
| | - Charles K. Crawford
- Department of Pathology, Microbiology and ImmunologySchool of Veterinary Medicine, University of California DavisDavisCaliforniaUSA
| | - Matthew L. Settles
- Bioinformatics Core FacilityUniversity of California DavisDavisCaliforniaUSA
| | - Pablo J. Ross
- Department of Animal ScienceUniversity of California DavisDavisCaliforniaUSA
| | - Amir Kol
- Department of Pathology, Microbiology and ImmunologySchool of Veterinary Medicine, University of California DavisDavisCaliforniaUSA
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36
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Zhao C, Zhang N, Zhang Y, Tuersunjiang N, Gao S, Liu W, Zhang Y. A DNA methylation state transition model reveals the programmed epigenetic heterogeneity in human pre-implantation embryos. Genome Biol 2020; 21:277. [PMID: 33198783 PMCID: PMC7667739 DOI: 10.1186/s13059-020-02189-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 10/27/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND During mammalian early embryogenesis, expression and epigenetic heterogeneity emerge before the first cell fate determination, but the programs causing such determinate heterogeneity are largely unexplored. RESULTS Here, we present MethylTransition, a novel DNA methylation state transition model, for characterizing methylation changes during one or a few cell cycles at single-cell resolution. MethylTransition involves the creation of a transition matrix comprising three parameters that represent the probabilities of DNA methylation-modifying activities in order to link the methylation states before and after a cell cycle. We apply MethylTransition to single-cell DNA methylome data from human pre-implantation embryogenesis and elucidate that the DNA methylation heterogeneity that emerges at promoters during this process is largely an intrinsic output of a program with unique probabilities of DNA methylation-modifying activities. Moreover, we experimentally validate the effect of the initial DNA methylation on expression heterogeneity in pre-implantation mouse embryos. CONCLUSIONS Our study reveals the programmed DNA methylation heterogeneity during human pre-implantation embryogenesis through a novel mathematical model and provides valuable clues for identifying the driving factors of the first cell fate determination during this process.
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Affiliation(s)
- Chengchen Zhao
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Science and Technology, Tongji University, Shanghai, 200092 China
| | - Naiqian Zhang
- School of Mathematics and Statistics, Shandong University at Weihai, Weihai, 264209 China
| | - Yalin Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Science and Technology, Tongji University, Shanghai, 200092 China
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai, 200092 China
| | - Nuermaimaiti Tuersunjiang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Science and Technology, Tongji University, Shanghai, 200092 China
| | - Shaorong Gao
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Science and Technology, Tongji University, Shanghai, 200092 China
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai, 200092 China
| | - Wenqiang Liu
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Science and Technology, Tongji University, Shanghai, 200092 China
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai, 200092 China
| | - Yong Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Science and Technology, Tongji University, Shanghai, 200092 China
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